git.sesse.net Git - ffmpeg/blob - fftools/ffprobe.c

   1 /*
   2  * Copyright (c) 2007-2010 Stefano Sabatini
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 /**
  22  * @file
  23  * simple media prober based on the FFmpeg libraries
  24  */
  25
  26 #include "config.h"
  27 #include "libavutil/ffversion.h"
  28
  29 #include <string.h>
  30
  31 #include "libavformat/avformat.h"
  32 #include "libavcodec/avcodec.h"
  33 #include "libavutil/avassert.h"
  34 #include "libavutil/avstring.h"
  35 #include "libavutil/bprint.h"
  36 #include "libavutil/display.h"
  37 #include "libavutil/hash.h"
  38 #include "libavutil/hdr_dynamic_metadata.h"
  39 #include "libavutil/mastering_display_metadata.h"
  40 #include "libavutil/dovi_meta.h"
  41 #include "libavutil/opt.h"
  42 #include "libavutil/pixdesc.h"
  43 #include "libavutil/spherical.h"
  44 #include "libavutil/stereo3d.h"
  45 #include "libavutil/dict.h"
  46 #include "libavutil/intreadwrite.h"
  47 #include "libavutil/libm.h"
  48 #include "libavutil/parseutils.h"
  49 #include "libavutil/timecode.h"
  50 #include "libavutil/timestamp.h"
  51 #include "libavdevice/avdevice.h"
  52 #include "libswscale/swscale.h"
  53 #include "libswresample/swresample.h"
  54 #include "libpostproc/postprocess.h"
  55 #include "cmdutils.h"
  56
  57 #include "libavutil/thread.h"
  58
  59 #if !HAVE_THREADS
  60 #  ifdef pthread_mutex_lock
  61 #    undef pthread_mutex_lock
  62 #  endif
  63 #  define pthread_mutex_lock(a) do{}while(0)
  64 #  ifdef pthread_mutex_unlock
  65 #    undef pthread_mutex_unlock
  66 #  endif
  67 #  define pthread_mutex_unlock(a) do{}while(0)
  68 #endif
  69
  70 typedef struct InputStream {
  71     AVStream *st;
  72
  73     AVCodecContext *dec_ctx;
  74 } InputStream;
  75
  76 typedef struct InputFile {
  77     AVFormatContext *fmt_ctx;
  78
  79     InputStream *streams;
  80     int       nb_streams;
  81 } InputFile;
  82
  83 const char program_name[] = "ffprobe";
  84 const int program_birth_year = 2007;
  85
  86 static int do_bitexact = 0;
  87 static int do_count_frames = 0;
  88 static int do_count_packets = 0;
  89 static int do_read_frames  = 0;
  90 static int do_read_packets = 0;
  91 static int do_show_chapters = 0;
  92 static int do_show_error   = 0;
  93 static int do_show_format  = 0;
  94 static int do_show_frames  = 0;
  95 static int do_show_packets = 0;
  96 static int do_show_programs = 0;
  97 static int do_show_streams = 0;
  98 static int do_show_stream_disposition = 0;
  99 static int do_show_data    = 0;
 100 static int do_show_program_version  = 0;
 101 static int do_show_library_versions = 0;
 102 static int do_show_pixel_formats = 0;
 103 static int do_show_pixel_format_flags = 0;
 104 static int do_show_pixel_format_components = 0;
 105 static int do_show_log = 0;
 106
 107 static int do_show_chapter_tags = 0;
 108 static int do_show_format_tags = 0;
 109 static int do_show_frame_tags = 0;
 110 static int do_show_program_tags = 0;
 111 static int do_show_stream_tags = 0;
 112 static int do_show_packet_tags = 0;
 113
 114 static int show_value_unit              = 0;
 115 static int use_value_prefix             = 0;
 116 static int use_byte_value_binary_prefix = 0;
 117 static int use_value_sexagesimal_format = 0;
 118 static int show_private_data            = 1;
 119
 120 static char *print_format;
 121 static char *stream_specifier;
 122 static char *show_data_hash;
 123
 124 typedef struct ReadInterval {
 125     int id;             ///< identifier
 126     int64_t start, end; ///< start, end in second/AV_TIME_BASE units
 127     int has_start, has_end;
 128     int start_is_offset, end_is_offset;
 129     int duration_frames;
 130 } ReadInterval;
 131
 132 static ReadInterval *read_intervals;
 133 static int read_intervals_nb = 0;
 134
 135 static int find_stream_info  = 1;
 136
 137 /* section structure definition */
 138
 139 #define SECTION_MAX_NB_CHILDREN 10
 140
 141 struct section {
 142     int id;             ///< unique id identifying a section
 143     const char *name;
 144
 145 #define SECTION_FLAG_IS_WRAPPER      1 ///< the section only contains other sections, but has no data at its own level
 146 #define SECTION_FLAG_IS_ARRAY        2 ///< the section contains an array of elements of the same type
 147 #define SECTION_FLAG_HAS_VARIABLE_FIELDS 4 ///< the section may contain a variable number of fields with variable keys.
 148                                            ///  For these sections the element_name field is mandatory.
 149     int flags;
 150     int children_ids[SECTION_MAX_NB_CHILDREN+1]; ///< list of children section IDS, terminated by -1
 151     const char *element_name; ///< name of the contained element, if provided
 152     const char *unique_name;  ///< unique section name, in case the name is ambiguous
 153     AVDictionary *entries_to_show;
 154     int show_all_entries;
 155 };
 156
 157 typedef enum {
 158     SECTION_ID_NONE = -1,
 159     SECTION_ID_CHAPTER,
 160     SECTION_ID_CHAPTER_TAGS,
 161     SECTION_ID_CHAPTERS,
 162     SECTION_ID_ERROR,
 163     SECTION_ID_FORMAT,
 164     SECTION_ID_FORMAT_TAGS,
 165     SECTION_ID_FRAME,
 166     SECTION_ID_FRAMES,
 167     SECTION_ID_FRAME_TAGS,
 168     SECTION_ID_FRAME_SIDE_DATA_LIST,
 169     SECTION_ID_FRAME_SIDE_DATA,
 170     SECTION_ID_FRAME_SIDE_DATA_TIMECODE_LIST,
 171     SECTION_ID_FRAME_SIDE_DATA_TIMECODE,
 172     SECTION_ID_FRAME_LOG,
 173     SECTION_ID_FRAME_LOGS,
 174     SECTION_ID_LIBRARY_VERSION,
 175     SECTION_ID_LIBRARY_VERSIONS,
 176     SECTION_ID_PACKET,
 177     SECTION_ID_PACKET_TAGS,
 178     SECTION_ID_PACKETS,
 179     SECTION_ID_PACKETS_AND_FRAMES,
 180     SECTION_ID_PACKET_SIDE_DATA_LIST,
 181     SECTION_ID_PACKET_SIDE_DATA,
 182     SECTION_ID_PIXEL_FORMAT,
 183     SECTION_ID_PIXEL_FORMAT_FLAGS,
 184     SECTION_ID_PIXEL_FORMAT_COMPONENT,
 185     SECTION_ID_PIXEL_FORMAT_COMPONENTS,
 186     SECTION_ID_PIXEL_FORMATS,
 187     SECTION_ID_PROGRAM_STREAM_DISPOSITION,
 188     SECTION_ID_PROGRAM_STREAM_TAGS,
 189     SECTION_ID_PROGRAM,
 190     SECTION_ID_PROGRAM_STREAMS,
 191     SECTION_ID_PROGRAM_STREAM,
 192     SECTION_ID_PROGRAM_TAGS,
 193     SECTION_ID_PROGRAM_VERSION,
 194     SECTION_ID_PROGRAMS,
 195     SECTION_ID_ROOT,
 196     SECTION_ID_STREAM,
 197     SECTION_ID_STREAM_DISPOSITION,
 198     SECTION_ID_STREAMS,
 199     SECTION_ID_STREAM_TAGS,
 200     SECTION_ID_STREAM_SIDE_DATA_LIST,
 201     SECTION_ID_STREAM_SIDE_DATA,
 202     SECTION_ID_SUBTITLE,
 203 } SectionID;
 204
 205 static struct section sections[] = {
 206     [SECTION_ID_CHAPTERS] =           { SECTION_ID_CHAPTERS, "chapters", SECTION_FLAG_IS_ARRAY, { SECTION_ID_CHAPTER, -1 } },
 207     [SECTION_ID_CHAPTER] =            { SECTION_ID_CHAPTER, "chapter", 0, { SECTION_ID_CHAPTER_TAGS, -1 } },
 208     [SECTION_ID_CHAPTER_TAGS] =       { SECTION_ID_CHAPTER_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "chapter_tags" },
 209     [SECTION_ID_ERROR] =              { SECTION_ID_ERROR, "error", 0, { -1 } },
 210     [SECTION_ID_FORMAT] =             { SECTION_ID_FORMAT, "format", 0, { SECTION_ID_FORMAT_TAGS, -1 } },
 211     [SECTION_ID_FORMAT_TAGS] =        { SECTION_ID_FORMAT_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "format_tags" },
 212     [SECTION_ID_FRAMES] =             { SECTION_ID_FRAMES, "frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME, SECTION_ID_SUBTITLE, -1 } },
 213     [SECTION_ID_FRAME] =              { SECTION_ID_FRAME, "frame", 0, { SECTION_ID_FRAME_TAGS, SECTION_ID_FRAME_SIDE_DATA_LIST, SECTION_ID_FRAME_LOGS, -1 } },
 214     [SECTION_ID_FRAME_TAGS] =         { SECTION_ID_FRAME_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "frame_tags" },
 215     [SECTION_ID_FRAME_SIDE_DATA_LIST] ={ SECTION_ID_FRAME_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "frame_side_data_list" },
 216     [SECTION_ID_FRAME_SIDE_DATA] =     { SECTION_ID_FRAME_SIDE_DATA, "side_data", 0, { SECTION_ID_FRAME_SIDE_DATA_TIMECODE_LIST, -1 } },
 217     [SECTION_ID_FRAME_SIDE_DATA_TIMECODE_LIST] =     { SECTION_ID_FRAME_SIDE_DATA_TIMECODE_LIST, "timecodes", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME_SIDE_DATA_TIMECODE, -1 } },
 218     [SECTION_ID_FRAME_SIDE_DATA_TIMECODE] =     { SECTION_ID_FRAME_SIDE_DATA_TIMECODE, "timecode", 0, { -1 } },
 219     [SECTION_ID_FRAME_LOGS] =         { SECTION_ID_FRAME_LOGS, "logs", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME_LOG, -1 } },
 220     [SECTION_ID_FRAME_LOG] =          { SECTION_ID_FRAME_LOG, "log", 0, { -1 },  },
 221     [SECTION_ID_LIBRARY_VERSIONS] =   { SECTION_ID_LIBRARY_VERSIONS, "library_versions", SECTION_FLAG_IS_ARRAY, { SECTION_ID_LIBRARY_VERSION, -1 } },
 222     [SECTION_ID_LIBRARY_VERSION] =    { SECTION_ID_LIBRARY_VERSION, "library_version", 0, { -1 } },
 223     [SECTION_ID_PACKETS] =            { SECTION_ID_PACKETS, "packets", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
 224     [SECTION_ID_PACKETS_AND_FRAMES] = { SECTION_ID_PACKETS_AND_FRAMES, "packets_and_frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
 225     [SECTION_ID_PACKET] =             { SECTION_ID_PACKET, "packet", 0, { SECTION_ID_PACKET_TAGS, SECTION_ID_PACKET_SIDE_DATA_LIST, -1 } },
 226     [SECTION_ID_PACKET_TAGS] =        { SECTION_ID_PACKET_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "packet_tags" },
 227     [SECTION_ID_PACKET_SIDE_DATA_LIST] ={ SECTION_ID_PACKET_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "packet_side_data_list" },
 228     [SECTION_ID_PACKET_SIDE_DATA] =     { SECTION_ID_PACKET_SIDE_DATA, "side_data", 0, { -1 } },
 229     [SECTION_ID_PIXEL_FORMATS] =      { SECTION_ID_PIXEL_FORMATS, "pixel_formats", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PIXEL_FORMAT, -1 } },
 230     [SECTION_ID_PIXEL_FORMAT] =       { SECTION_ID_PIXEL_FORMAT, "pixel_format", 0, { SECTION_ID_PIXEL_FORMAT_FLAGS, SECTION_ID_PIXEL_FORMAT_COMPONENTS, -1 } },
 231     [SECTION_ID_PIXEL_FORMAT_FLAGS] = { SECTION_ID_PIXEL_FORMAT_FLAGS, "flags", 0, { -1 }, .unique_name = "pixel_format_flags" },
 232     [SECTION_ID_PIXEL_FORMAT_COMPONENTS] = { SECTION_ID_PIXEL_FORMAT_COMPONENTS, "components", SECTION_FLAG_IS_ARRAY, {SECTION_ID_PIXEL_FORMAT_COMPONENT, -1 }, .unique_name = "pixel_format_components" },
 233     [SECTION_ID_PIXEL_FORMAT_COMPONENT]  = { SECTION_ID_PIXEL_FORMAT_COMPONENT, "component", 0, { -1 } },
 234     [SECTION_ID_PROGRAM_STREAM_DISPOSITION] = { SECTION_ID_PROGRAM_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "program_stream_disposition" },
 235     [SECTION_ID_PROGRAM_STREAM_TAGS] =        { SECTION_ID_PROGRAM_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "program_stream_tags" },
 236     [SECTION_ID_PROGRAM] =                    { SECTION_ID_PROGRAM, "program", 0, { SECTION_ID_PROGRAM_TAGS, SECTION_ID_PROGRAM_STREAMS, -1 } },
 237     [SECTION_ID_PROGRAM_STREAMS] =            { SECTION_ID_PROGRAM_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PROGRAM_STREAM, -1 }, .unique_name = "program_streams" },
 238     [SECTION_ID_PROGRAM_STREAM] =             { SECTION_ID_PROGRAM_STREAM, "stream", 0, { SECTION_ID_PROGRAM_STREAM_DISPOSITION, SECTION_ID_PROGRAM_STREAM_TAGS, -1 }, .unique_name = "program_stream" },
 239     [SECTION_ID_PROGRAM_TAGS] =               { SECTION_ID_PROGRAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "program_tags" },
 240     [SECTION_ID_PROGRAM_VERSION] =    { SECTION_ID_PROGRAM_VERSION, "program_version", 0, { -1 } },
 241     [SECTION_ID_PROGRAMS] =                   { SECTION_ID_PROGRAMS, "programs", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PROGRAM, -1 } },
 242     [SECTION_ID_ROOT] =               { SECTION_ID_ROOT, "root", SECTION_FLAG_IS_WRAPPER,
 243                                         { SECTION_ID_CHAPTERS, SECTION_ID_FORMAT, SECTION_ID_FRAMES, SECTION_ID_PROGRAMS, SECTION_ID_STREAMS,
 244                                           SECTION_ID_PACKETS, SECTION_ID_ERROR, SECTION_ID_PROGRAM_VERSION, SECTION_ID_LIBRARY_VERSIONS,
 245                                           SECTION_ID_PIXEL_FORMATS, -1} },
 246     [SECTION_ID_STREAMS] =            { SECTION_ID_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM, -1 } },
 247     [SECTION_ID_STREAM] =             { SECTION_ID_STREAM, "stream", 0, { SECTION_ID_STREAM_DISPOSITION, SECTION_ID_STREAM_TAGS, SECTION_ID_STREAM_SIDE_DATA_LIST, -1 } },
 248     [SECTION_ID_STREAM_DISPOSITION] = { SECTION_ID_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "stream_disposition" },
 249     [SECTION_ID_STREAM_TAGS] =        { SECTION_ID_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "stream_tags" },
 250     [SECTION_ID_STREAM_SIDE_DATA_LIST] ={ SECTION_ID_STREAM_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "stream_side_data_list" },
 251     [SECTION_ID_STREAM_SIDE_DATA] =     { SECTION_ID_STREAM_SIDE_DATA, "side_data", 0, { -1 } },
 252     [SECTION_ID_SUBTITLE] =           { SECTION_ID_SUBTITLE, "subtitle", 0, { -1 } },
 253 };
 254
 255 static const OptionDef *options;
 256
 257 /* FFprobe context */
 258 static const char *input_filename;
 259 static const char *print_input_filename;
 260 static AVInputFormat *iformat = NULL;
 261
 262 static struct AVHashContext *hash;
 263
 264 static const struct {
 265     double bin_val;
 266     double dec_val;
 267     const char *bin_str;
 268     const char *dec_str;
 269 } si_prefixes[] = {
 270     { 1.0, 1.0, "", "" },
 271     { 1.024e3, 1e3, "Ki", "K" },
 272     { 1.048576e6, 1e6, "Mi", "M" },
 273     { 1.073741824e9, 1e9, "Gi", "G" },
 274     { 1.099511627776e12, 1e12, "Ti", "T" },
 275     { 1.125899906842624e15, 1e15, "Pi", "P" },
 276 };
 277
 278 static const char unit_second_str[]         = "s"    ;
 279 static const char unit_hertz_str[]          = "Hz"   ;
 280 static const char unit_byte_str[]           = "byte" ;
 281 static const char unit_bit_per_second_str[] = "bit/s";
 282
 283 static int nb_streams;
 284 static uint64_t *nb_streams_packets;
 285 static uint64_t *nb_streams_frames;
 286 static int *selected_streams;
 287
 288 #if HAVE_THREADS
 289 pthread_mutex_t log_mutex;
 290 #endif
 291 typedef struct LogBuffer {
 292     char *context_name;
 293     int log_level;
 294     char *log_message;
 295     AVClassCategory category;
 296     char *parent_name;
 297     AVClassCategory parent_category;
 298 }LogBuffer;
 299
 300 static LogBuffer *log_buffer;
 301 static int log_buffer_size;
 302
 303 static void log_callback(void *ptr, int level, const char *fmt, va_list vl)
 304 {
 305     AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
 306     va_list vl2;
 307     char line[1024];
 308     static int print_prefix = 1;
 309     void *new_log_buffer;
 310
 311     va_copy(vl2, vl);
 312     av_log_default_callback(ptr, level, fmt, vl);
 313     av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
 314     va_end(vl2);
 315
 316 #if HAVE_THREADS
 317     pthread_mutex_lock(&log_mutex);
 318
 319     new_log_buffer = av_realloc_array(log_buffer, log_buffer_size + 1, sizeof(*log_buffer));
 320     if (new_log_buffer) {
 321         char *msg;
 322         int i;
 323
 324         log_buffer = new_log_buffer;
 325         memset(&log_buffer[log_buffer_size], 0, sizeof(log_buffer[log_buffer_size]));
 326         log_buffer[log_buffer_size].context_name= avc ? av_strdup(avc->item_name(ptr)) : NULL;
 327         if (avc) {
 328             if (avc->get_category) log_buffer[log_buffer_size].category = avc->get_category(ptr);
 329             else                   log_buffer[log_buffer_size].category = avc->category;
 330         }
 331         log_buffer[log_buffer_size].log_level   = level;
 332         msg = log_buffer[log_buffer_size].log_message = av_strdup(line);
 333         for (i=strlen(msg) - 1; i>=0 && msg[i] == '\n'; i--) {
 334             msg[i] = 0;
 335         }
 336         if (avc && avc->parent_log_context_offset) {
 337             AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
 338                                    avc->parent_log_context_offset);
 339             if (parent && *parent) {
 340                 log_buffer[log_buffer_size].parent_name = av_strdup((*parent)->item_name(parent));
 341                 log_buffer[log_buffer_size].parent_category =
 342                     (*parent)->get_category ? (*parent)->get_category(parent) :(*parent)->category;
 343             }
 344         }
 345         log_buffer_size ++;
 346     }
 347
 348     pthread_mutex_unlock(&log_mutex);
 349 #endif
 350 }
 351
 352 static void ffprobe_cleanup(int ret)
 353 {
 354     int i;
 355     for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
 356         av_dict_free(&(sections[i].entries_to_show));
 357
 358 #if HAVE_THREADS
 359     pthread_mutex_destroy(&log_mutex);
 360 #endif
 361 }
 362
 363 struct unit_value {
 364     union { double d; long long int i; } val;
 365     const char *unit;
 366 };
 367
 368 static char *value_string(char *buf, int buf_size, struct unit_value uv)
 369 {
 370     double vald;
 371     long long int vali;
 372     int show_float = 0;
 373
 374     if (uv.unit == unit_second_str) {
 375         vald = uv.val.d;
 376         show_float = 1;
 377     } else {
 378         vald = vali = uv.val.i;
 379     }
 380
 381     if (uv.unit == unit_second_str && use_value_sexagesimal_format) {
 382         double secs;
 383         int hours, mins;
 384         secs  = vald;
 385         mins  = (int)secs / 60;
 386         secs  = secs - mins * 60;
 387         hours = mins / 60;
 388         mins %= 60;
 389         snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
 390     } else {
 391         const char *prefix_string = "";
 392
 393         if (use_value_prefix && vald > 1) {
 394             long long int index;
 395
 396             if (uv.unit == unit_byte_str && use_byte_value_binary_prefix) {
 397                 index = (long long int) (log2(vald)) / 10;
 398                 index = av_clip(index, 0, FF_ARRAY_ELEMS(si_prefixes) - 1);
 399                 vald /= si_prefixes[index].bin_val;
 400                 prefix_string = si_prefixes[index].bin_str;
 401             } else {
 402                 index = (long long int) (log10(vald)) / 3;
 403                 index = av_clip(index, 0, FF_ARRAY_ELEMS(si_prefixes) - 1);
 404                 vald /= si_prefixes[index].dec_val;
 405                 prefix_string = si_prefixes[index].dec_str;
 406             }
 407             vali = vald;
 408         }
 409
 410         if (show_float || (use_value_prefix && vald != (long long int)vald))
 411             snprintf(buf, buf_size, "%f", vald);
 412         else
 413             snprintf(buf, buf_size, "%lld", vali);
 414         av_strlcatf(buf, buf_size, "%s%s%s", *prefix_string || show_value_unit ? " " : "",
 415                  prefix_string, show_value_unit ? uv.unit : "");
 416     }
 417
 418     return buf;
 419 }
 420
 421 /* WRITERS API */
 422
 423 typedef struct WriterContext WriterContext;
 424
 425 #define WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS 1
 426 #define WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER 2
 427
 428 typedef enum {
 429     WRITER_STRING_VALIDATION_FAIL,
 430     WRITER_STRING_VALIDATION_REPLACE,
 431     WRITER_STRING_VALIDATION_IGNORE,
 432     WRITER_STRING_VALIDATION_NB
 433 } StringValidation;
 434
 435 typedef struct Writer {
 436     const AVClass *priv_class;      ///< private class of the writer, if any
 437     int priv_size;                  ///< private size for the writer context
 438     const char *name;
 439
 440     int  (*init)  (WriterContext *wctx);
 441     void (*uninit)(WriterContext *wctx);
 442
 443     void (*print_section_header)(WriterContext *wctx);
 444     void (*print_section_footer)(WriterContext *wctx);
 445     void (*print_integer)       (WriterContext *wctx, const char *, long long int);
 446     void (*print_rational)      (WriterContext *wctx, AVRational *q, char *sep);
 447     void (*print_string)        (WriterContext *wctx, const char *, const char *);
 448     int flags;                  ///< a combination or WRITER_FLAG_*
 449 } Writer;
 450
 451 #define SECTION_MAX_NB_LEVELS 10
 452
 453 struct WriterContext {
 454     const AVClass *class;           ///< class of the writer
 455     const Writer *writer;           ///< the Writer of which this is an instance
 456     char *name;                     ///< name of this writer instance
 457     void *priv;                     ///< private data for use by the filter
 458
 459     const struct section *sections; ///< array containing all sections
 460     int nb_sections;                ///< number of sections
 461
 462     int level;                      ///< current level, starting from 0
 463
 464     /** number of the item printed in the given section, starting from 0 */
 465     unsigned int nb_item[SECTION_MAX_NB_LEVELS];
 466
 467     /** section per each level */
 468     const struct section *section[SECTION_MAX_NB_LEVELS];
 469     AVBPrint section_pbuf[SECTION_MAX_NB_LEVELS]; ///< generic print buffer dedicated to each section,
 470                                                   ///  used by various writers
 471
 472     unsigned int nb_section_packet; ///< number of the packet section in case we are in "packets_and_frames" section
 473     unsigned int nb_section_frame;  ///< number of the frame  section in case we are in "packets_and_frames" section
 474     unsigned int nb_section_packet_frame; ///< nb_section_packet or nb_section_frame according if is_packets_and_frames
 475
 476     int string_validation;
 477     char *string_validation_replacement;
 478     unsigned int string_validation_utf8_flags;
 479 };
 480
 481 static const char *writer_get_name(void *p)
 482 {
 483     WriterContext *wctx = p;
 484     return wctx->writer->name;
 485 }
 486
 487 #define OFFSET(x) offsetof(WriterContext, x)
 488
 489 static const AVOption writer_options[] = {
 490     { "string_validation", "set string validation mode",
 491       OFFSET(string_validation), AV_OPT_TYPE_INT, {.i64=WRITER_STRING_VALIDATION_REPLACE}, 0, WRITER_STRING_VALIDATION_NB-1, .unit = "sv" },
 492     { "sv", "set string validation mode",
 493       OFFSET(string_validation), AV_OPT_TYPE_INT, {.i64=WRITER_STRING_VALIDATION_REPLACE}, 0, WRITER_STRING_VALIDATION_NB-1, .unit = "sv" },
 494     { "ignore",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_IGNORE},  .unit = "sv" },
 495     { "replace", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_REPLACE}, .unit = "sv" },
 496     { "fail",    NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_FAIL},    .unit = "sv" },
 497     { "string_validation_replacement", "set string validation replacement string", OFFSET(string_validation_replacement), AV_OPT_TYPE_STRING, {.str=""}},
 498     { "svr", "set string validation replacement string", OFFSET(string_validation_replacement), AV_OPT_TYPE_STRING, {.str="\xEF\xBF\xBD"}},
 499     { NULL }
 500 };
 501
 502 static void *writer_child_next(void *obj, void *prev)
 503 {
 504     WriterContext *ctx = obj;
 505     if (!prev && ctx->writer && ctx->writer->priv_class && ctx->priv)
 506         return ctx->priv;
 507     return NULL;
 508 }
 509
 510 static const AVClass writer_class = {
 511     .class_name = "Writer",
 512     .item_name  = writer_get_name,
 513     .option     = writer_options,
 514     .version    = LIBAVUTIL_VERSION_INT,
 515     .child_next = writer_child_next,
 516 };
 517
 518 static void writer_close(WriterContext **wctx)
 519 {
 520     int i;
 521
 522     if (!*wctx)
 523         return;
 524
 525     if ((*wctx)->writer->uninit)
 526         (*wctx)->writer->uninit(*wctx);
 527     for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
 528         av_bprint_finalize(&(*wctx)->section_pbuf[i], NULL);
 529     if ((*wctx)->writer->priv_class)
 530         av_opt_free((*wctx)->priv);
 531     av_freep(&((*wctx)->priv));
 532     av_opt_free(*wctx);
 533     av_freep(wctx);
 534 }
 535
 536 static void bprint_bytes(AVBPrint *bp, const uint8_t *ubuf, size_t ubuf_size)
 537 {
 538     int i;
 539     av_bprintf(bp, "0X");
 540     for (i = 0; i < ubuf_size; i++)
 541         av_bprintf(bp, "%02X", ubuf[i]);
 542 }
 543
 544
 545 static int writer_open(WriterContext **wctx, const Writer *writer, const char *args,
 546                        const struct section *sections, int nb_sections)
 547 {
 548     int i, ret = 0;
 549
 550     if (!(*wctx = av_mallocz(sizeof(WriterContext)))) {
 551         ret = AVERROR(ENOMEM);
 552         goto fail;
 553     }
 554
 555     if (!((*wctx)->priv = av_mallocz(writer->priv_size))) {
 556         ret = AVERROR(ENOMEM);
 557         goto fail;
 558     }
 559
 560     (*wctx)->class = &writer_class;
 561     (*wctx)->writer = writer;
 562     (*wctx)->level = -1;
 563     (*wctx)->sections = sections;
 564     (*wctx)->nb_sections = nb_sections;
 565
 566     av_opt_set_defaults(*wctx);
 567
 568     if (writer->priv_class) {
 569         void *priv_ctx = (*wctx)->priv;
 570         *((const AVClass **)priv_ctx) = writer->priv_class;
 571         av_opt_set_defaults(priv_ctx);
 572     }
 573
 574     /* convert options to dictionary */
 575     if (args) {
 576         AVDictionary *opts = NULL;
 577         AVDictionaryEntry *opt = NULL;
 578
 579         if ((ret = av_dict_parse_string(&opts, args, "=", ":", 0)) < 0) {
 580             av_log(*wctx, AV_LOG_ERROR, "Failed to parse option string '%s' provided to writer context\n", args);
 581             av_dict_free(&opts);
 582             goto fail;
 583         }
 584
 585         while ((opt = av_dict_get(opts, "", opt, AV_DICT_IGNORE_SUFFIX))) {
 586             if ((ret = av_opt_set(*wctx, opt->key, opt->value, AV_OPT_SEARCH_CHILDREN)) < 0) {
 587                 av_log(*wctx, AV_LOG_ERROR, "Failed to set option '%s' with value '%s' provided to writer context\n",
 588                        opt->key, opt->value);
 589                 av_dict_free(&opts);
 590                 goto fail;
 591             }
 592         }
 593
 594         av_dict_free(&opts);
 595     }
 596
 597     /* validate replace string */
 598     {
 599         const uint8_t *p = (*wctx)->string_validation_replacement;
 600         const uint8_t *endp = p + strlen(p);
 601         while (*p) {
 602             const uint8_t *p0 = p;
 603             int32_t code;
 604             ret = av_utf8_decode(&code, &p, endp, (*wctx)->string_validation_utf8_flags);
 605             if (ret < 0) {
 606                 AVBPrint bp;
 607                 av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
 608                 bprint_bytes(&bp, p0, p-p0),
 609                     av_log(wctx, AV_LOG_ERROR,
 610                            "Invalid UTF8 sequence %s found in string validation replace '%s'\n",
 611                            bp.str, (*wctx)->string_validation_replacement);
 612                 return ret;
 613             }
 614         }
 615     }
 616
 617     for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
 618         av_bprint_init(&(*wctx)->section_pbuf[i], 1, AV_BPRINT_SIZE_UNLIMITED);
 619
 620     if ((*wctx)->writer->init)
 621         ret = (*wctx)->writer->init(*wctx);
 622     if (ret < 0)
 623         goto fail;
 624
 625     return 0;
 626
 627 fail:
 628     writer_close(wctx);
 629     return ret;
 630 }
 631
 632 static inline void writer_print_section_header(WriterContext *wctx,
 633                                                int section_id)
 634 {
 635     int parent_section_id;
 636     wctx->level++;
 637     av_assert0(wctx->level < SECTION_MAX_NB_LEVELS);
 638     parent_section_id = wctx->level ?
 639         (wctx->section[wctx->level-1])->id : SECTION_ID_NONE;
 640
 641     wctx->nb_item[wctx->level] = 0;
 642     wctx->section[wctx->level] = &wctx->sections[section_id];
 643
 644     if (section_id == SECTION_ID_PACKETS_AND_FRAMES) {
 645         wctx->nb_section_packet = wctx->nb_section_frame =
 646         wctx->nb_section_packet_frame = 0;
 647     } else if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) {
 648         wctx->nb_section_packet_frame = section_id == SECTION_ID_PACKET ?
 649             wctx->nb_section_packet : wctx->nb_section_frame;
 650     }
 651
 652     if (wctx->writer->print_section_header)
 653         wctx->writer->print_section_header(wctx);
 654 }
 655
 656 static inline void writer_print_section_footer(WriterContext *wctx)
 657 {
 658     int section_id = wctx->section[wctx->level]->id;
 659     int parent_section_id = wctx->level ?
 660         wctx->section[wctx->level-1]->id : SECTION_ID_NONE;
 661
 662     if (parent_section_id != SECTION_ID_NONE)
 663         wctx->nb_item[wctx->level-1]++;
 664     if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) {
 665         if (section_id == SECTION_ID_PACKET) wctx->nb_section_packet++;
 666         else                                     wctx->nb_section_frame++;
 667     }
 668     if (wctx->writer->print_section_footer)
 669         wctx->writer->print_section_footer(wctx);
 670     wctx->level--;
 671 }
 672
 673 static inline void writer_print_integer(WriterContext *wctx,
 674                                         const char *key, long long int val)
 675 {
 676     const struct section *section = wctx->section[wctx->level];
 677
 678     if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
 679         wctx->writer->print_integer(wctx, key, val);
 680         wctx->nb_item[wctx->level]++;
 681     }
 682 }
 683
 684 static inline int validate_string(WriterContext *wctx, char **dstp, const char *src)
 685 {
 686     const uint8_t *p, *endp;
 687     AVBPrint dstbuf;
 688     int invalid_chars_nb = 0, ret = 0;
 689
 690     av_bprint_init(&dstbuf, 0, AV_BPRINT_SIZE_UNLIMITED);
 691
 692     endp = src + strlen(src);
 693     for (p = (uint8_t *)src; *p;) {
 694         uint32_t code;
 695         int invalid = 0;
 696         const uint8_t *p0 = p;
 697
 698         if (av_utf8_decode(&code, &p, endp, wctx->string_validation_utf8_flags) < 0) {
 699             AVBPrint bp;
 700             av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
 701             bprint_bytes(&bp, p0, p-p0);
 702             av_log(wctx, AV_LOG_DEBUG,
 703                    "Invalid UTF-8 sequence %s found in string '%s'\n", bp.str, src);
 704             invalid = 1;
 705         }
 706
 707         if (invalid) {
 708             invalid_chars_nb++;
 709
 710             switch (wctx->string_validation) {
 711             case WRITER_STRING_VALIDATION_FAIL:
 712                 av_log(wctx, AV_LOG_ERROR,
 713                        "Invalid UTF-8 sequence found in string '%s'\n", src);
 714                 ret = AVERROR_INVALIDDATA;
 715                 goto end;
 716                 break;
 717
 718             case WRITER_STRING_VALIDATION_REPLACE:
 719                 av_bprintf(&dstbuf, "%s", wctx->string_validation_replacement);
 720                 break;
 721             }
 722         }
 723
 724         if (!invalid || wctx->string_validation == WRITER_STRING_VALIDATION_IGNORE)
 725             av_bprint_append_data(&dstbuf, p0, p-p0);
 726     }
 727
 728     if (invalid_chars_nb && wctx->string_validation == WRITER_STRING_VALIDATION_REPLACE) {
 729         av_log(wctx, AV_LOG_WARNING,
 730                "%d invalid UTF-8 sequence(s) found in string '%s', replaced with '%s'\n",
 731                invalid_chars_nb, src, wctx->string_validation_replacement);
 732     }
 733
 734 end:
 735     av_bprint_finalize(&dstbuf, dstp);
 736     return ret;
 737 }
 738
 739 #define PRINT_STRING_OPT      1
 740 #define PRINT_STRING_VALIDATE 2
 741
 742 static inline int writer_print_string(WriterContext *wctx,
 743                                       const char *key, const char *val, int flags)
 744 {
 745     const struct section *section = wctx->section[wctx->level];
 746     int ret = 0;
 747
 748     if ((flags & PRINT_STRING_OPT)
 749         && !(wctx->writer->flags & WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS))
 750         return 0;
 751
 752     if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
 753         if (flags & PRINT_STRING_VALIDATE) {
 754             char *key1 = NULL, *val1 = NULL;
 755             ret = validate_string(wctx, &key1, key);
 756             if (ret < 0) goto end;
 757             ret = validate_string(wctx, &val1, val);
 758             if (ret < 0) goto end;
 759             wctx->writer->print_string(wctx, key1, val1);
 760         end:
 761             if (ret < 0) {
 762                 av_log(wctx, AV_LOG_ERROR,
 763                        "Invalid key=value string combination %s=%s in section %s\n",
 764                        key, val, section->unique_name);
 765             }
 766             av_free(key1);
 767             av_free(val1);
 768         } else {
 769             wctx->writer->print_string(wctx, key, val);
 770         }
 771
 772         wctx->nb_item[wctx->level]++;
 773     }
 774
 775     return ret;
 776 }
 777
 778 static inline void writer_print_rational(WriterContext *wctx,
 779                                          const char *key, AVRational q, char sep)
 780 {
 781     AVBPrint buf;
 782     av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
 783     av_bprintf(&buf, "%d%c%d", q.num, sep, q.den);
 784     writer_print_string(wctx, key, buf.str, 0);
 785 }
 786
 787 static void writer_print_time(WriterContext *wctx, const char *key,
 788                               int64_t ts, const AVRational *time_base, int is_duration)
 789 {
 790     char buf[128];
 791
 792     if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
 793         writer_print_string(wctx, key, "N/A", PRINT_STRING_OPT);
 794     } else {
 795         double d = ts * av_q2d(*time_base);
 796         struct unit_value uv;
 797         uv.val.d = d;
 798         uv.unit = unit_second_str;
 799         value_string(buf, sizeof(buf), uv);
 800         writer_print_string(wctx, key, buf, 0);
 801     }
 802 }
 803
 804 static void writer_print_ts(WriterContext *wctx, const char *key, int64_t ts, int is_duration)
 805 {
 806     if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
 807         writer_print_string(wctx, key, "N/A", PRINT_STRING_OPT);
 808     } else {
 809         writer_print_integer(wctx, key, ts);
 810     }
 811 }
 812
 813 static void writer_print_data(WriterContext *wctx, const char *name,
 814                               uint8_t *data, int size)
 815 {
 816     AVBPrint bp;
 817     int offset = 0, l, i;
 818
 819     av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
 820     av_bprintf(&bp, "\n");
 821     while (size) {
 822         av_bprintf(&bp, "%08x: ", offset);
 823         l = FFMIN(size, 16);
 824         for (i = 0; i < l; i++) {
 825             av_bprintf(&bp, "%02x", data[i]);
 826             if (i & 1)
 827                 av_bprintf(&bp, " ");
 828         }
 829         av_bprint_chars(&bp, ' ', 41 - 2 * i - i / 2);
 830         for (i = 0; i < l; i++)
 831             av_bprint_chars(&bp, data[i] - 32U < 95 ? data[i] : '.', 1);
 832         av_bprintf(&bp, "\n");
 833         offset += l;
 834         data   += l;
 835         size   -= l;
 836     }
 837     writer_print_string(wctx, name, bp.str, 0);
 838     av_bprint_finalize(&bp, NULL);
 839 }
 840
 841 static void writer_print_data_hash(WriterContext *wctx, const char *name,
 842                                    uint8_t *data, int size)
 843 {
 844     char *p, buf[AV_HASH_MAX_SIZE * 2 + 64] = { 0 };
 845
 846     if (!hash)
 847         return;
 848     av_hash_init(hash);
 849     av_hash_update(hash, data, size);
 850     snprintf(buf, sizeof(buf), "%s:", av_hash_get_name(hash));
 851     p = buf + strlen(buf);
 852     av_hash_final_hex(hash, p, buf + sizeof(buf) - p);
 853     writer_print_string(wctx, name, buf, 0);
 854 }
 855
 856 static void writer_print_integers(WriterContext *wctx, const char *name,
 857                                   uint8_t *data, int size, const char *format,
 858                                   int columns, int bytes, int offset_add)
 859 {
 860     AVBPrint bp;
 861     int offset = 0, l, i;
 862
 863     av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
 864     av_bprintf(&bp, "\n");
 865     while (size) {
 866         av_bprintf(&bp, "%08x: ", offset);
 867         l = FFMIN(size, columns);
 868         for (i = 0; i < l; i++) {
 869             if      (bytes == 1) av_bprintf(&bp, format, *data);
 870             else if (bytes == 2) av_bprintf(&bp, format, AV_RN16(data));
 871             else if (bytes == 4) av_bprintf(&bp, format, AV_RN32(data));
 872             data += bytes;
 873             size --;
 874         }
 875         av_bprintf(&bp, "\n");
 876         offset += offset_add;
 877     }
 878     writer_print_string(wctx, name, bp.str, 0);
 879     av_bprint_finalize(&bp, NULL);
 880 }
 881
 882 #define MAX_REGISTERED_WRITERS_NB 64
 883
 884 static const Writer *registered_writers[MAX_REGISTERED_WRITERS_NB + 1];
 885
 886 static int writer_register(const Writer *writer)
 887 {
 888     static int next_registered_writer_idx = 0;
 889
 890     if (next_registered_writer_idx == MAX_REGISTERED_WRITERS_NB)
 891         return AVERROR(ENOMEM);
 892
 893     registered_writers[next_registered_writer_idx++] = writer;
 894     return 0;
 895 }
 896
 897 static const Writer *writer_get_by_name(const char *name)
 898 {
 899     int i;
 900
 901     for (i = 0; registered_writers[i]; i++)
 902         if (!strcmp(registered_writers[i]->name, name))
 903             return registered_writers[i];
 904
 905     return NULL;
 906 }
 907
 908
 909 /* WRITERS */
 910
 911 #define DEFINE_WRITER_CLASS(name)                   \
 912 static const char *name##_get_name(void *ctx)       \
 913 {                                                   \
 914     return #name ;                                  \
 915 }                                                   \
 916 static const AVClass name##_class = {               \
 917     .class_name = #name,                            \
 918     .item_name  = name##_get_name,                  \
 919     .option     = name##_options                    \
 920 }
 921
 922 /* Default output */
 923
 924 typedef struct DefaultContext {
 925     const AVClass *class;
 926     int nokey;
 927     int noprint_wrappers;
 928     int nested_section[SECTION_MAX_NB_LEVELS];
 929 } DefaultContext;
 930
 931 #undef OFFSET
 932 #define OFFSET(x) offsetof(DefaultContext, x)
 933
 934 static const AVOption default_options[] = {
 935     { "noprint_wrappers", "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 936     { "nw",               "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 937     { "nokey",          "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 938     { "nk",             "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 939     {NULL},
 940 };
 941
 942 DEFINE_WRITER_CLASS(default);
 943
 944 /* lame uppercasing routine, assumes the string is lower case ASCII */
 945 static inline char *upcase_string(char *dst, size_t dst_size, const char *src)
 946 {
 947     int i;
 948     for (i = 0; src[i] && i < dst_size-1; i++)
 949         dst[i] = av_toupper(src[i]);
 950     dst[i] = 0;
 951     return dst;
 952 }
 953
 954 static void default_print_section_header(WriterContext *wctx)
 955 {
 956     DefaultContext *def = wctx->priv;
 957     char buf[32];
 958     const struct section *section = wctx->section[wctx->level];
 959     const struct section *parent_section = wctx->level ?
 960         wctx->section[wctx->level-1] : NULL;
 961
 962     av_bprint_clear(&wctx->section_pbuf[wctx->level]);
 963     if (parent_section &&
 964         !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
 965         def->nested_section[wctx->level] = 1;
 966         av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
 967                    wctx->section_pbuf[wctx->level-1].str,
 968                    upcase_string(buf, sizeof(buf),
 969                                  av_x_if_null(section->element_name, section->name)));
 970     }
 971
 972     if (def->noprint_wrappers || def->nested_section[wctx->level])
 973         return;
 974
 975     if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
 976         printf("[%s]\n", upcase_string(buf, sizeof(buf), section->name));
 977 }
 978
 979 static void default_print_section_footer(WriterContext *wctx)
 980 {
 981     DefaultContext *def = wctx->priv;
 982     const struct section *section = wctx->section[wctx->level];
 983     char buf[32];
 984
 985     if (def->noprint_wrappers || def->nested_section[wctx->level])
 986         return;
 987
 988     if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
 989         printf("[/%s]\n", upcase_string(buf, sizeof(buf), section->name));
 990 }
 991
 992 static void default_print_str(WriterContext *wctx, const char *key, const char *value)
 993 {
 994     DefaultContext *def = wctx->priv;
 995
 996     if (!def->nokey)
 997         printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
 998     printf("%s\n", value);
 999 }
1000
1001 static void default_print_int(WriterContext *wctx, const char *key, long long int value)
1002 {
1003     DefaultContext *def = wctx->priv;
1004
1005     if (!def->nokey)
1006         printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
1007     printf("%lld\n", value);
1008 }
1009
1010 static const Writer default_writer = {
1011     .name                  = "default",
1012     .priv_size             = sizeof(DefaultContext),
1013     .print_section_header  = default_print_section_header,
1014     .print_section_footer  = default_print_section_footer,
1015     .print_integer         = default_print_int,
1016     .print_string          = default_print_str,
1017     .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
1018     .priv_class            = &default_class,
1019 };
1020
1021 /* Compact output */
1022
1023 /**
1024  * Apply C-language-like string escaping.
1025  */
1026 static const char *c_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
1027 {
1028     const char *p;
1029
1030     for (p = src; *p; p++) {
1031         switch (*p) {
1032         case '\b': av_bprintf(dst, "%s", "\\b");  break;
1033         case '\f': av_bprintf(dst, "%s", "\\f");  break;
1034         case '\n': av_bprintf(dst, "%s", "\\n");  break;
1035         case '\r': av_bprintf(dst, "%s", "\\r");  break;
1036         case '\\': av_bprintf(dst, "%s", "\\\\"); break;
1037         default:
1038             if (*p == sep)
1039                 av_bprint_chars(dst, '\\', 1);
1040             av_bprint_chars(dst, *p, 1);
1041         }
1042     }
1043     return dst->str;
1044 }
1045
1046 /**
1047  * Quote fields containing special characters, check RFC4180.
1048  */
1049 static const char *csv_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
1050 {
1051     char meta_chars[] = { sep, '"', '\n', '\r', '\0' };
1052     int needs_quoting = !!src[strcspn(src, meta_chars)];
1053
1054     if (needs_quoting)
1055         av_bprint_chars(dst, '"', 1);
1056
1057     for (; *src; src++) {
1058         if (*src == '"')
1059             av_bprint_chars(dst, '"', 1);
1060         av_bprint_chars(dst, *src, 1);
1061     }
1062     if (needs_quoting)
1063         av_bprint_chars(dst, '"', 1);
1064     return dst->str;
1065 }
1066
1067 static const char *none_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
1068 {
1069     return src;
1070 }
1071
1072 typedef struct CompactContext {
1073     const AVClass *class;
1074     char *item_sep_str;
1075     char item_sep;
1076     int nokey;
1077     int print_section;
1078     char *escape_mode_str;
1079     const char * (*escape_str)(AVBPrint *dst, const char *src, const char sep, void *log_ctx);
1080     int nested_section[SECTION_MAX_NB_LEVELS];
1081     int has_nested_elems[SECTION_MAX_NB_LEVELS];
1082     int terminate_line[SECTION_MAX_NB_LEVELS];
1083 } CompactContext;
1084
1085 #undef OFFSET
1086 #define OFFSET(x) offsetof(CompactContext, x)
1087
1088 static const AVOption compact_options[]= {
1089     {"item_sep", "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str="|"},  0, 0 },
1090     {"s",        "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str="|"},  0, 0 },
1091     {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=0},    0,        1        },
1092     {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=0},    0,        1        },
1093     {"escape",   "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"},  0, 0 },
1094     {"e",        "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"},  0, 0 },
1095     {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1096     {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1097     {NULL},
1098 };
1099
1100 DEFINE_WRITER_CLASS(compact);
1101
1102 static av_cold int compact_init(WriterContext *wctx)
1103 {
1104     CompactContext *compact = wctx->priv;
1105
1106     if (strlen(compact->item_sep_str) != 1) {
1107         av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
1108                compact->item_sep_str);
1109         return AVERROR(EINVAL);
1110     }
1111     compact->item_sep = compact->item_sep_str[0];
1112
1113     if      (!strcmp(compact->escape_mode_str, "none")) compact->escape_str = none_escape_str;
1114     else if (!strcmp(compact->escape_mode_str, "c"   )) compact->escape_str = c_escape_str;
1115     else if (!strcmp(compact->escape_mode_str, "csv" )) compact->escape_str = csv_escape_str;
1116     else {
1117         av_log(wctx, AV_LOG_ERROR, "Unknown escape mode '%s'\n", compact->escape_mode_str);
1118         return AVERROR(EINVAL);
1119     }
1120
1121     return 0;
1122 }
1123
1124 static void compact_print_section_header(WriterContext *wctx)
1125 {
1126     CompactContext *compact = wctx->priv;
1127     const struct section *section = wctx->section[wctx->level];
1128     const struct section *parent_section = wctx->level ?
1129         wctx->section[wctx->level-1] : NULL;
1130     compact->terminate_line[wctx->level] = 1;
1131     compact->has_nested_elems[wctx->level] = 0;
1132
1133     av_bprint_clear(&wctx->section_pbuf[wctx->level]);
1134     if (!(section->flags & SECTION_FLAG_IS_ARRAY) && parent_section &&
1135         !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
1136         compact->nested_section[wctx->level] = 1;
1137         compact->has_nested_elems[wctx->level-1] = 1;
1138         av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
1139                    wctx->section_pbuf[wctx->level-1].str,
1140                    (char *)av_x_if_null(section->element_name, section->name));
1141         wctx->nb_item[wctx->level] = wctx->nb_item[wctx->level-1];
1142     } else {
1143         if (parent_section && compact->has_nested_elems[wctx->level-1] &&
1144             (section->flags & SECTION_FLAG_IS_ARRAY)) {
1145             compact->terminate_line[wctx->level-1] = 0;
1146             printf("\n");
1147         }
1148         if (compact->print_section &&
1149             !(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
1150             printf("%s%c", section->name, compact->item_sep);
1151     }
1152 }
1153
1154 static void compact_print_section_footer(WriterContext *wctx)
1155 {
1156     CompactContext *compact = wctx->priv;
1157
1158     if (!compact->nested_section[wctx->level] &&
1159         compact->terminate_line[wctx->level] &&
1160         !(wctx->section[wctx->level]->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
1161         printf("\n");
1162 }
1163
1164 static void compact_print_str(WriterContext *wctx, const char *key, const char *value)
1165 {
1166     CompactContext *compact = wctx->priv;
1167     AVBPrint buf;
1168
1169     if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
1170     if (!compact->nokey)
1171         printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
1172     av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1173     printf("%s", compact->escape_str(&buf, value, compact->item_sep, wctx));
1174     av_bprint_finalize(&buf, NULL);
1175 }
1176
1177 static void compact_print_int(WriterContext *wctx, const char *key, long long int value)
1178 {
1179     CompactContext *compact = wctx->priv;
1180
1181     if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
1182     if (!compact->nokey)
1183         printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
1184     printf("%lld", value);
1185 }
1186
1187 static const Writer compact_writer = {
1188     .name                 = "compact",
1189     .priv_size            = sizeof(CompactContext),
1190     .init                 = compact_init,
1191     .print_section_header = compact_print_section_header,
1192     .print_section_footer = compact_print_section_footer,
1193     .print_integer        = compact_print_int,
1194     .print_string         = compact_print_str,
1195     .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
1196     .priv_class           = &compact_class,
1197 };
1198
1199 /* CSV output */
1200
1201 #undef OFFSET
1202 #define OFFSET(x) offsetof(CompactContext, x)
1203
1204 static const AVOption csv_options[] = {
1205     {"item_sep", "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str=","},  0, 0 },
1206     {"s",        "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str=","},  0, 0 },
1207     {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1208     {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1209     {"escape",   "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, 0, 0 },
1210     {"e",        "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, 0, 0 },
1211     {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1212     {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1213     {NULL},
1214 };
1215
1216 DEFINE_WRITER_CLASS(csv);
1217
1218 static const Writer csv_writer = {
1219     .name                 = "csv",
1220     .priv_size            = sizeof(CompactContext),
1221     .init                 = compact_init,
1222     .print_section_header = compact_print_section_header,
1223     .print_section_footer = compact_print_section_footer,
1224     .print_integer        = compact_print_int,
1225     .print_string         = compact_print_str,
1226     .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
1227     .priv_class           = &csv_class,
1228 };
1229
1230 /* Flat output */
1231
1232 typedef struct FlatContext {
1233     const AVClass *class;
1234     const char *sep_str;
1235     char sep;
1236     int hierarchical;
1237 } FlatContext;
1238
1239 #undef OFFSET
1240 #define OFFSET(x) offsetof(FlatContext, x)
1241
1242 static const AVOption flat_options[]= {
1243     {"sep_char", "set separator",    OFFSET(sep_str),    AV_OPT_TYPE_STRING, {.str="."},  0, 0 },
1244     {"s",        "set separator",    OFFSET(sep_str),    AV_OPT_TYPE_STRING, {.str="."},  0, 0 },
1245     {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
1246     {"h",            "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
1247     {NULL},
1248 };
1249
1250 DEFINE_WRITER_CLASS(flat);
1251
1252 static av_cold int flat_init(WriterContext *wctx)
1253 {
1254     FlatContext *flat = wctx->priv;
1255
1256     if (strlen(flat->sep_str) != 1) {
1257         av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
1258                flat->sep_str);
1259         return AVERROR(EINVAL);
1260     }
1261     flat->sep = flat->sep_str[0];
1262
1263     return 0;
1264 }
1265
1266 static const char *flat_escape_key_str(AVBPrint *dst, const char *src, const char sep)
1267 {
1268     const char *p;
1269
1270     for (p = src; *p; p++) {
1271         if (!((*p >= '0' && *p <= '9') ||
1272               (*p >= 'a' && *p <= 'z') ||
1273               (*p >= 'A' && *p <= 'Z')))
1274             av_bprint_chars(dst, '_', 1);
1275         else
1276             av_bprint_chars(dst, *p, 1);
1277     }
1278     return dst->str;
1279 }
1280
1281 static const char *flat_escape_value_str(AVBPrint *dst, const char *src)
1282 {
1283     const char *p;
1284
1285     for (p = src; *p; p++) {
1286         switch (*p) {
1287         case '\n': av_bprintf(dst, "%s", "\\n");  break;
1288         case '\r': av_bprintf(dst, "%s", "\\r");  break;
1289         case '\\': av_bprintf(dst, "%s", "\\\\"); break;
1290         case '"':  av_bprintf(dst, "%s", "\\\""); break;
1291         case '`':  av_bprintf(dst, "%s", "\\`");  break;
1292         case '$':  av_bprintf(dst, "%s", "\\$");  break;
1293         default:   av_bprint_chars(dst, *p, 1);   break;
1294         }
1295     }
1296     return dst->str;
1297 }
1298
1299 static void flat_print_section_header(WriterContext *wctx)
1300 {
1301     FlatContext *flat = wctx->priv;
1302     AVBPrint *buf = &wctx->section_pbuf[wctx->level];
1303     const struct section *section = wctx->section[wctx->level];
1304     const struct section *parent_section = wctx->level ?
1305         wctx->section[wctx->level-1] : NULL;
1306
1307     /* build section header */
1308     av_bprint_clear(buf);
1309     if (!parent_section)
1310         return;
1311     av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
1312
1313     if (flat->hierarchical ||
1314         !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) {
1315         av_bprintf(buf, "%s%s", wctx->section[wctx->level]->name, flat->sep_str);
1316
1317         if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
1318             int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
1319                 wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
1320             av_bprintf(buf, "%d%s", n, flat->sep_str);
1321         }
1322     }
1323 }
1324
1325 static void flat_print_int(WriterContext *wctx, const char *key, long long int value)
1326 {
1327     printf("%s%s=%lld\n", wctx->section_pbuf[wctx->level].str, key, value);
1328 }
1329
1330 static void flat_print_str(WriterContext *wctx, const char *key, const char *value)
1331 {
1332     FlatContext *flat = wctx->priv;
1333     AVBPrint buf;
1334
1335     printf("%s", wctx->section_pbuf[wctx->level].str);
1336     av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1337     printf("%s=", flat_escape_key_str(&buf, key, flat->sep));
1338     av_bprint_clear(&buf);
1339     printf("\"%s\"\n", flat_escape_value_str(&buf, value));
1340     av_bprint_finalize(&buf, NULL);
1341 }
1342
1343 static const Writer flat_writer = {
1344     .name                  = "flat",
1345     .priv_size             = sizeof(FlatContext),
1346     .init                  = flat_init,
1347     .print_section_header  = flat_print_section_header,
1348     .print_integer         = flat_print_int,
1349     .print_string          = flat_print_str,
1350     .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1351     .priv_class            = &flat_class,
1352 };
1353
1354 /* INI format output */
1355
1356 typedef struct INIContext {
1357     const AVClass *class;
1358     int hierarchical;
1359 } INIContext;
1360
1361 #undef OFFSET
1362 #define OFFSET(x) offsetof(INIContext, x)
1363
1364 static const AVOption ini_options[] = {
1365     {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
1366     {"h",            "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
1367     {NULL},
1368 };
1369
1370 DEFINE_WRITER_CLASS(ini);
1371
1372 static char *ini_escape_str(AVBPrint *dst, const char *src)
1373 {
1374     int i = 0;
1375     char c = 0;
1376
1377     while (c = src[i++]) {
1378         switch (c) {
1379         case '\b': av_bprintf(dst, "%s", "\\b"); break;
1380         case '\f': av_bprintf(dst, "%s", "\\f"); break;
1381         case '\n': av_bprintf(dst, "%s", "\\n"); break;
1382         case '\r': av_bprintf(dst, "%s", "\\r"); break;
1383         case '\t': av_bprintf(dst, "%s", "\\t"); break;
1384         case '\\':
1385         case '#' :
1386         case '=' :
1387         case ':' : av_bprint_chars(dst, '\\', 1);
1388         default:
1389             if ((unsigned char)c < 32)
1390                 av_bprintf(dst, "\\x00%02x", c & 0xff);
1391             else
1392                 av_bprint_chars(dst, c, 1);
1393             break;
1394         }
1395     }
1396     return dst->str;
1397 }
1398
1399 static void ini_print_section_header(WriterContext *wctx)
1400 {
1401     INIContext *ini = wctx->priv;
1402     AVBPrint *buf = &wctx->section_pbuf[wctx->level];
1403     const struct section *section = wctx->section[wctx->level];
1404     const struct section *parent_section = wctx->level ?
1405         wctx->section[wctx->level-1] : NULL;
1406
1407     av_bprint_clear(buf);
1408     if (!parent_section) {
1409         printf("# ffprobe output\n\n");
1410         return;
1411     }
1412
1413     if (wctx->nb_item[wctx->level-1])
1414         printf("\n");
1415
1416     av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
1417     if (ini->hierarchical ||
1418         !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) {
1419         av_bprintf(buf, "%s%s", buf->str[0] ? "." : "", wctx->section[wctx->level]->name);
1420
1421         if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
1422             int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
1423                 wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
1424             av_bprintf(buf, ".%d", n);
1425         }
1426     }
1427
1428     if (!(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER)))
1429         printf("[%s]\n", buf->str);
1430 }
1431
1432 static void ini_print_str(WriterContext *wctx, const char *key, const char *value)
1433 {
1434     AVBPrint buf;
1435
1436     av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1437     printf("%s=", ini_escape_str(&buf, key));
1438     av_bprint_clear(&buf);
1439     printf("%s\n", ini_escape_str(&buf, value));
1440     av_bprint_finalize(&buf, NULL);
1441 }
1442
1443 static void ini_print_int(WriterContext *wctx, const char *key, long long int value)
1444 {
1445     printf("%s=%lld\n", key, value);
1446 }
1447
1448 static const Writer ini_writer = {
1449     .name                  = "ini",
1450     .priv_size             = sizeof(INIContext),
1451     .print_section_header  = ini_print_section_header,
1452     .print_integer         = ini_print_int,
1453     .print_string          = ini_print_str,
1454     .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1455     .priv_class            = &ini_class,
1456 };
1457
1458 /* JSON output */
1459
1460 typedef struct JSONContext {
1461     const AVClass *class;
1462     int indent_level;
1463     int compact;
1464     const char *item_sep, *item_start_end;
1465 } JSONContext;
1466
1467 #undef OFFSET
1468 #define OFFSET(x) offsetof(JSONContext, x)
1469
1470 static const AVOption json_options[]= {
1471     { "compact", "enable compact output", OFFSET(compact), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
1472     { "c",       "enable compact output", OFFSET(compact), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
1473     { NULL }
1474 };
1475
1476 DEFINE_WRITER_CLASS(json);
1477
1478 static av_cold int json_init(WriterContext *wctx)
1479 {
1480     JSONContext *json = wctx->priv;
1481
1482     json->item_sep       = json->compact ? ", " : ",\n";
1483     json->item_start_end = json->compact ? " "  : "\n";
1484
1485     return 0;
1486 }
1487
1488 static const char *json_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
1489 {
1490     static const char json_escape[] = {'"', '\\', '\b', '\f', '\n', '\r', '\t', 0};
1491     static const char json_subst[]  = {'"', '\\',  'b',  'f',  'n',  'r',  't', 0};
1492     const char *p;
1493
1494     for (p = src; *p; p++) {
1495         char *s = strchr(json_escape, *p);
1496         if (s) {
1497             av_bprint_chars(dst, '\\', 1);
1498             av_bprint_chars(dst, json_subst[s - json_escape], 1);
1499         } else if ((unsigned char)*p < 32) {
1500             av_bprintf(dst, "\\u00%02x", *p & 0xff);
1501         } else {
1502             av_bprint_chars(dst, *p, 1);
1503         }
1504     }
1505     return dst->str;
1506 }
1507
1508 #define JSON_INDENT() printf("%*c", json->indent_level * 4, ' ')
1509
1510 static void json_print_section_header(WriterContext *wctx)
1511 {
1512     JSONContext *json = wctx->priv;
1513     AVBPrint buf;
1514     const struct section *section = wctx->section[wctx->level];
1515     const struct section *parent_section = wctx->level ?
1516         wctx->section[wctx->level-1] : NULL;
1517
1518     if (wctx->level && wctx->nb_item[wctx->level-1])
1519         printf(",\n");
1520
1521     if (section->flags & SECTION_FLAG_IS_WRAPPER) {
1522         printf("{\n");
1523         json->indent_level++;
1524     } else {
1525         av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1526         json_escape_str(&buf, section->name, wctx);
1527         JSON_INDENT();
1528
1529         json->indent_level++;
1530         if (section->flags & SECTION_FLAG_IS_ARRAY) {
1531             printf("\"%s\": [\n", buf.str);
1532         } else if (parent_section && !(parent_section->flags & SECTION_FLAG_IS_ARRAY)) {
1533             printf("\"%s\": {%s", buf.str, json->item_start_end);
1534         } else {
1535             printf("{%s", json->item_start_end);
1536
1537             /* this is required so the parser can distinguish between packets and frames */
1538             if (parent_section && parent_section->id == SECTION_ID_PACKETS_AND_FRAMES) {
1539                 if (!json->compact)
1540                     JSON_INDENT();
1541                 printf("\"type\": \"%s\"", section->name);
1542             }
1543         }
1544         av_bprint_finalize(&buf, NULL);
1545     }
1546 }
1547
1548 static void json_print_section_footer(WriterContext *wctx)
1549 {
1550     JSONContext *json = wctx->priv;
1551     const struct section *section = wctx->section[wctx->level];
1552
1553     if (wctx->level == 0) {
1554         json->indent_level--;
1555         printf("\n}\n");
1556     } else if (section->flags & SECTION_FLAG_IS_ARRAY) {
1557         printf("\n");
1558         json->indent_level--;
1559         JSON_INDENT();
1560         printf("]");
1561     } else {
1562         printf("%s", json->item_start_end);
1563         json->indent_level--;
1564         if (!json->compact)
1565             JSON_INDENT();
1566         printf("}");
1567     }
1568 }
1569
1570 static inline void json_print_item_str(WriterContext *wctx,
1571                                        const char *key, const char *value)
1572 {
1573     AVBPrint buf;
1574
1575     av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1576     printf("\"%s\":", json_escape_str(&buf, key,   wctx));
1577     av_bprint_clear(&buf);
1578     printf(" \"%s\"", json_escape_str(&buf, value, wctx));
1579     av_bprint_finalize(&buf, NULL);
1580 }
1581
1582 static void json_print_str(WriterContext *wctx, const char *key, const char *value)
1583 {
1584     JSONContext *json = wctx->priv;
1585     const struct section *parent_section = wctx->level ?
1586         wctx->section[wctx->level-1] : NULL;
1587
1588     if (wctx->nb_item[wctx->level] || (parent_section && parent_section->id == SECTION_ID_PACKETS_AND_FRAMES))
1589         printf("%s", json->item_sep);
1590     if (!json->compact)
1591         JSON_INDENT();
1592     json_print_item_str(wctx, key, value);
1593 }
1594
1595 static void json_print_int(WriterContext *wctx, const char *key, long long int value)
1596 {
1597     JSONContext *json = wctx->priv;
1598     const struct section *parent_section = wctx->level ?
1599         wctx->section[wctx->level-1] : NULL;
1600     AVBPrint buf;
1601
1602     if (wctx->nb_item[wctx->level] || (parent_section && parent_section->id == SECTION_ID_PACKETS_AND_FRAMES))
1603         printf("%s", json->item_sep);
1604     if (!json->compact)
1605         JSON_INDENT();
1606
1607     av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1608     printf("\"%s\": %lld", json_escape_str(&buf, key, wctx), value);
1609     av_bprint_finalize(&buf, NULL);
1610 }
1611
1612 static const Writer json_writer = {
1613     .name                 = "json",
1614     .priv_size            = sizeof(JSONContext),
1615     .init                 = json_init,
1616     .print_section_header = json_print_section_header,
1617     .print_section_footer = json_print_section_footer,
1618     .print_integer        = json_print_int,
1619     .print_string         = json_print_str,
1620     .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1621     .priv_class           = &json_class,
1622 };
1623
1624 /* XML output */
1625
1626 typedef struct XMLContext {
1627     const AVClass *class;
1628     int within_tag;
1629     int indent_level;
1630     int fully_qualified;
1631     int xsd_strict;
1632 } XMLContext;
1633
1634 #undef OFFSET
1635 #define OFFSET(x) offsetof(XMLContext, x)
1636
1637 static const AVOption xml_options[] = {
1638     {"fully_qualified", "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
1639     {"q",               "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
1640     {"xsd_strict",      "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
1641     {"x",               "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
1642     {NULL},
1643 };
1644
1645 DEFINE_WRITER_CLASS(xml);
1646
1647 static av_cold int xml_init(WriterContext *wctx)
1648 {
1649     XMLContext *xml = wctx->priv;
1650
1651     if (xml->xsd_strict) {
1652         xml->fully_qualified = 1;
1653 #define CHECK_COMPLIANCE(opt, opt_name)                                 \
1654         if (opt) {                                                      \
1655             av_log(wctx, AV_LOG_ERROR,                                  \
1656                    "XSD-compliant output selected but option '%s' was selected, XML output may be non-compliant.\n" \
1657                    "You need to disable such option with '-no%s'\n", opt_name, opt_name); \
1658             return AVERROR(EINVAL);                                     \
1659         }
1660         CHECK_COMPLIANCE(show_private_data, "private");
1661         CHECK_COMPLIANCE(show_value_unit,   "unit");
1662         CHECK_COMPLIANCE(use_value_prefix,  "prefix");
1663
1664         if (do_show_frames && do_show_packets) {
1665             av_log(wctx, AV_LOG_ERROR,
1666                    "Interleaved frames and packets are not allowed in XSD. "
1667                    "Select only one between the -show_frames and the -show_packets options.\n");
1668             return AVERROR(EINVAL);
1669         }
1670     }
1671
1672     return 0;
1673 }
1674
1675 static const char *xml_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
1676 {
1677     const char *p;
1678
1679     for (p = src; *p; p++) {
1680         switch (*p) {
1681         case '&' : av_bprintf(dst, "%s", "&amp;");  break;
1682         case '<' : av_bprintf(dst, "%s", "&lt;");   break;
1683         case '>' : av_bprintf(dst, "%s", "&gt;");   break;
1684         case '"' : av_bprintf(dst, "%s", "&quot;"); break;
1685         case '\'': av_bprintf(dst, "%s", "&apos;"); break;
1686         default: av_bprint_chars(dst, *p, 1);
1687         }
1688     }
1689
1690     return dst->str;
1691 }
1692
1693 #define XML_INDENT() printf("%*c", xml->indent_level * 4, ' ')
1694
1695 static void xml_print_section_header(WriterContext *wctx)
1696 {
1697     XMLContext *xml = wctx->priv;
1698     const struct section *section = wctx->section[wctx->level];
1699     const struct section *parent_section = wctx->level ?
1700         wctx->section[wctx->level-1] : NULL;
1701
1702     if (wctx->level == 0) {
1703         const char *qual = " xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' "
1704             "xmlns:ffprobe='http://www.ffmpeg.org/schema/ffprobe' "
1705             "xsi:schemaLocation='http://www.ffmpeg.org/schema/ffprobe ffprobe.xsd'";
1706
1707         printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
1708         printf("<%sffprobe%s>\n",
1709                xml->fully_qualified ? "ffprobe:" : "",
1710                xml->fully_qualified ? qual : "");
1711         return;
1712     }
1713
1714     if (xml->within_tag) {
1715         xml->within_tag = 0;
1716         printf(">\n");
1717     }
1718     if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1719         xml->indent_level++;
1720     } else {
1721         if (parent_section && (parent_section->flags & SECTION_FLAG_IS_WRAPPER) &&
1722             wctx->level && wctx->nb_item[wctx->level-1])
1723             printf("\n");
1724         xml->indent_level++;
1725
1726         if (section->flags & SECTION_FLAG_IS_ARRAY) {
1727             XML_INDENT(); printf("<%s>\n", section->name);
1728         } else {
1729             XML_INDENT(); printf("<%s ", section->name);
1730             xml->within_tag = 1;
1731         }
1732     }
1733 }
1734
1735 static void xml_print_section_footer(WriterContext *wctx)
1736 {
1737     XMLContext *xml = wctx->priv;
1738     const struct section *section = wctx->section[wctx->level];
1739
1740     if (wctx->level == 0) {
1741         printf("</%sffprobe>\n", xml->fully_qualified ? "ffprobe:" : "");
1742     } else if (xml->within_tag) {
1743         xml->within_tag = 0;
1744         printf("/>\n");
1745         xml->indent_level--;
1746     } else if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1747         xml->indent_level--;
1748     } else {
1749         XML_INDENT(); printf("</%s>\n", section->name);
1750         xml->indent_level--;
1751     }
1752 }
1753
1754 static void xml_print_str(WriterContext *wctx, const char *key, const char *value)
1755 {
1756     AVBPrint buf;
1757     XMLContext *xml = wctx->priv;
1758     const struct section *section = wctx->section[wctx->level];
1759
1760     av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1761
1762     if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1763         XML_INDENT();
1764         printf("<%s key=\"%s\"",
1765                section->element_name, xml_escape_str(&buf, key, wctx));
1766         av_bprint_clear(&buf);
1767         printf(" value=\"%s\"/>\n", xml_escape_str(&buf, value, wctx));
1768     } else {
1769         if (wctx->nb_item[wctx->level])
1770             printf(" ");
1771         printf("%s=\"%s\"", key, xml_escape_str(&buf, value, wctx));
1772     }
1773
1774     av_bprint_finalize(&buf, NULL);
1775 }
1776
1777 static void xml_print_int(WriterContext *wctx, const char *key, long long int value)
1778 {
1779     if (wctx->nb_item[wctx->level])
1780         printf(" ");
1781     printf("%s=\"%lld\"", key, value);
1782 }
1783
1784 static Writer xml_writer = {
1785     .name                 = "xml",
1786     .priv_size            = sizeof(XMLContext),
1787     .init                 = xml_init,
1788     .print_section_header = xml_print_section_header,
1789     .print_section_footer = xml_print_section_footer,
1790     .print_integer        = xml_print_int,
1791     .print_string         = xml_print_str,
1792     .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1793     .priv_class           = &xml_class,
1794 };
1795
1796 static void writer_register_all(void)
1797 {
1798     static int initialized;
1799
1800     if (initialized)
1801         return;
1802     initialized = 1;
1803
1804     writer_register(&default_writer);
1805     writer_register(&compact_writer);
1806     writer_register(&csv_writer);
1807     writer_register(&flat_writer);
1808     writer_register(&ini_writer);
1809     writer_register(&json_writer);
1810     writer_register(&xml_writer);
1811 }
1812
1813 #define print_fmt(k, f, ...) do {              \
1814     av_bprint_clear(&pbuf);                    \
1815     av_bprintf(&pbuf, f, __VA_ARGS__);         \
1816     writer_print_string(w, k, pbuf.str, 0);    \
1817 } while (0)
1818
1819 #define print_int(k, v)         writer_print_integer(w, k, v)
1820 #define print_q(k, v, s)        writer_print_rational(w, k, v, s)
1821 #define print_str(k, v)         writer_print_string(w, k, v, 0)
1822 #define print_str_opt(k, v)     writer_print_string(w, k, v, PRINT_STRING_OPT)
1823 #define print_str_validate(k, v) writer_print_string(w, k, v, PRINT_STRING_VALIDATE)
1824 #define print_time(k, v, tb)    writer_print_time(w, k, v, tb, 0)
1825 #define print_ts(k, v)          writer_print_ts(w, k, v, 0)
1826 #define print_duration_time(k, v, tb) writer_print_time(w, k, v, tb, 1)
1827 #define print_duration_ts(k, v)       writer_print_ts(w, k, v, 1)
1828 #define print_val(k, v, u) do {                                     \
1829     struct unit_value uv;                                           \
1830     uv.val.i = v;                                                   \
1831     uv.unit = u;                                                    \
1832     writer_print_string(w, k, value_string(val_str, sizeof(val_str), uv), 0); \
1833 } while (0)
1834
1835 #define print_section_header(s) writer_print_section_header(w, s)
1836 #define print_section_footer(s) writer_print_section_footer(w, s)
1837
1838 #define REALLOCZ_ARRAY_STREAM(ptr, cur_n, new_n)                        \
1839 {                                                                       \
1840     ret = av_reallocp_array(&(ptr), (new_n), sizeof(*(ptr)));           \
1841     if (ret < 0)                                                        \
1842         goto end;                                                       \
1843     memset( (ptr) + (cur_n), 0, ((new_n) - (cur_n)) * sizeof(*(ptr)) ); \
1844 }
1845
1846 static inline int show_tags(WriterContext *w, AVDictionary *tags, int section_id)
1847 {
1848     AVDictionaryEntry *tag = NULL;
1849     int ret = 0;
1850
1851     if (!tags)
1852         return 0;
1853     writer_print_section_header(w, section_id);
1854
1855     while ((tag = av_dict_get(tags, "", tag, AV_DICT_IGNORE_SUFFIX))) {
1856         if ((ret = print_str_validate(tag->key, tag->value)) < 0)
1857             break;
1858     }
1859     writer_print_section_footer(w);
1860
1861     return ret;
1862 }
1863
1864 static void print_dynamic_hdr10_plus(WriterContext *w, const AVDynamicHDRPlus *metadata)
1865 {
1866     if (!metadata)
1867         return;
1868     print_int("application version", metadata->application_version);
1869     print_int("num_windows", metadata->num_windows);
1870     for (int n = 1; n < metadata->num_windows; n++) {
1871         const AVHDRPlusColorTransformParams *params = &metadata->params[n];
1872         print_q("window_upper_left_corner_x",
1873                 params->window_upper_left_corner_x,'/');
1874         print_q("window_upper_left_corner_y",
1875                 params->window_upper_left_corner_y,'/');
1876         print_q("window_lower_right_corner_x",
1877                 params->window_lower_right_corner_x,'/');
1878         print_q("window_lower_right_corner_y",
1879                 params->window_lower_right_corner_y,'/');
1880         print_q("window_upper_left_corner_x",
1881                 params->window_upper_left_corner_x,'/');
1882         print_q("window_upper_left_corner_y",
1883                 params->window_upper_left_corner_y,'/');
1884         print_int("center_of_ellipse_x",
1885                   params->center_of_ellipse_x ) ;
1886         print_int("center_of_ellipse_y",
1887                   params->center_of_ellipse_y );
1888         print_int("rotation_angle",
1889                   params->rotation_angle);
1890         print_int("semimajor_axis_internal_ellipse",
1891                   params->semimajor_axis_internal_ellipse);
1892         print_int("semimajor_axis_external_ellipse",
1893                   params->semimajor_axis_external_ellipse);
1894         print_int("semiminor_axis_external_ellipse",
1895                   params->semiminor_axis_external_ellipse);
1896         print_int("overlap_process_option",
1897                   params->overlap_process_option);
1898     }
1899     print_q("targeted_system_display_maximum_luminance",
1900             metadata->targeted_system_display_maximum_luminance,'/');
1901     if (metadata->targeted_system_display_actual_peak_luminance_flag) {
1902         print_int("num_rows_targeted_system_display_actual_peak_luminance",
1903                   metadata->num_rows_targeted_system_display_actual_peak_luminance);
1904         print_int("num_cols_targeted_system_display_actual_peak_luminance",
1905                   metadata->num_cols_targeted_system_display_actual_peak_luminance);
1906         for (int i = 0; i < metadata->num_rows_targeted_system_display_actual_peak_luminance; i++) {
1907             for (int j = 0; j < metadata->num_cols_targeted_system_display_actual_peak_luminance; j++) {
1908                 print_q("targeted_system_display_actual_peak_luminance",
1909                         metadata->targeted_system_display_actual_peak_luminance[i][j],'/');
1910             }
1911         }
1912     }
1913     for (int n = 0; n < metadata->num_windows; n++) {
1914         const AVHDRPlusColorTransformParams *params = &metadata->params[n];
1915         for (int i = 0; i < 3; i++) {
1916             print_q("maxscl",params->maxscl[i],'/');
1917         }
1918         print_q("average_maxrgb",
1919                 params->average_maxrgb,'/');
1920         print_int("num_distribution_maxrgb_percentiles",
1921                   params->num_distribution_maxrgb_percentiles);
1922         for (int i = 0; i < params->num_distribution_maxrgb_percentiles; i++) {
1923             print_int("distribution_maxrgb_percentage",
1924                       params->distribution_maxrgb[i].percentage);
1925             print_q("distribution_maxrgb_percentile",
1926                     params->distribution_maxrgb[i].percentile,'/');
1927         }
1928         print_q("fraction_bright_pixels",
1929                 params->fraction_bright_pixels,'/');
1930     }
1931     if (metadata->mastering_display_actual_peak_luminance_flag) {
1932         print_int("num_rows_mastering_display_actual_peak_luminance",
1933                   metadata->num_rows_mastering_display_actual_peak_luminance);
1934         print_int("num_cols_mastering_display_actual_peak_luminance",
1935                   metadata->num_cols_mastering_display_actual_peak_luminance);
1936         for (int i = 0; i < metadata->num_rows_mastering_display_actual_peak_luminance; i++) {
1937             for (int j = 0; j <  metadata->num_cols_mastering_display_actual_peak_luminance; j++) {
1938                 print_q("mastering_display_actual_peak_luminance",
1939                         metadata->mastering_display_actual_peak_luminance[i][j],'/');
1940             }
1941         }
1942     }
1943
1944     for (int n = 0; n < metadata->num_windows; n++) {
1945         const AVHDRPlusColorTransformParams *params = &metadata->params[n];
1946         if (params->tone_mapping_flag) {
1947             print_q("knee_point_x", params->knee_point_x,'/');
1948             print_q("knee_point_y", params->knee_point_y,'/');
1949             print_int("num_bezier_curve_anchors",
1950                       params->num_bezier_curve_anchors );
1951             for (int i = 0; i < params->num_bezier_curve_anchors; i++) {
1952                 print_q("bezier_curve_anchors",
1953                         params->bezier_curve_anchors[i],'/');
1954             }
1955         }
1956         if (params->color_saturation_mapping_flag) {
1957             print_q("color_saturation_weight",
1958                     params->color_saturation_weight,'/');
1959         }
1960     }
1961 }
1962
1963 static void print_pkt_side_data(WriterContext *w,
1964                                 AVCodecParameters *par,
1965                                 const AVPacketSideData *side_data,
1966                                 int nb_side_data,
1967                                 SectionID id_data_list,
1968                                 SectionID id_data)
1969 {
1970     int i;
1971
1972     writer_print_section_header(w, id_data_list);
1973     for (i = 0; i < nb_side_data; i++) {
1974         const AVPacketSideData *sd = &side_data[i];
1975         const char *name = av_packet_side_data_name(sd->type);
1976
1977         writer_print_section_header(w, id_data);
1978         print_str("side_data_type", name ? name : "unknown");
1979         if (sd->type == AV_PKT_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
1980             writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
1981             print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
1982         } else if (sd->type == AV_PKT_DATA_STEREO3D) {
1983             const AVStereo3D *stereo = (AVStereo3D *)sd->data;
1984             print_str("type", av_stereo3d_type_name(stereo->type));
1985             print_int("inverted", !!(stereo->flags & AV_STEREO3D_FLAG_INVERT));
1986         } else if (sd->type == AV_PKT_DATA_SPHERICAL) {
1987             const AVSphericalMapping *spherical = (AVSphericalMapping *)sd->data;
1988             print_str("projection", av_spherical_projection_name(spherical->projection));
1989             if (spherical->projection == AV_SPHERICAL_CUBEMAP) {
1990                 print_int("padding", spherical->padding);
1991             } else if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE) {
1992                 size_t l, t, r, b;
1993                 av_spherical_tile_bounds(spherical, par->width, par->height,
1994                                          &l, &t, &r, &b);
1995                 print_int("bound_left", l);
1996                 print_int("bound_top", t);
1997                 print_int("bound_right", r);
1998                 print_int("bound_bottom", b);
1999             }
2000
2001             print_int("yaw", (double) spherical->yaw / (1 << 16));
2002             print_int("pitch", (double) spherical->pitch / (1 << 16));
2003             print_int("roll", (double) spherical->roll / (1 << 16));
2004         } else if (sd->type == AV_PKT_DATA_SKIP_SAMPLES && sd->size == 10) {
2005             print_int("skip_samples",    AV_RL32(sd->data));
2006             print_int("discard_padding", AV_RL32(sd->data + 4));
2007             print_int("skip_reason",     AV_RL8(sd->data + 8));
2008             print_int("discard_reason",  AV_RL8(sd->data + 9));
2009         } else if (sd->type == AV_PKT_DATA_MASTERING_DISPLAY_METADATA) {
2010             AVMasteringDisplayMetadata *metadata = (AVMasteringDisplayMetadata *)sd->data;
2011
2012             if (metadata->has_primaries) {
2013                 print_q("red_x", metadata->display_primaries[0][0], '/');
2014                 print_q("red_y", metadata->display_primaries[0][1], '/');
2015                 print_q("green_x", metadata->display_primaries[1][0], '/');
2016                 print_q("green_y", metadata->display_primaries[1][1], '/');
2017                 print_q("blue_x", metadata->display_primaries[2][0], '/');
2018                 print_q("blue_y", metadata->display_primaries[2][1], '/');
2019
2020                 print_q("white_point_x", metadata->white_point[0], '/');
2021                 print_q("white_point_y", metadata->white_point[1], '/');
2022             }
2023
2024             if (metadata->has_luminance) {
2025                 print_q("min_luminance", metadata->min_luminance, '/');
2026                 print_q("max_luminance", metadata->max_luminance, '/');
2027             }
2028         } else if (sd->type == AV_PKT_DATA_CONTENT_LIGHT_LEVEL) {
2029             AVContentLightMetadata *metadata = (AVContentLightMetadata *)sd->data;
2030             print_int("max_content", metadata->MaxCLL);
2031             print_int("max_average", metadata->MaxFALL);
2032         } else if (sd->type == AV_PKT_DATA_DOVI_CONF) {
2033             AVDOVIDecoderConfigurationRecord *dovi = (AVDOVIDecoderConfigurationRecord *)sd->data;
2034             print_int("dv_version_major", dovi->dv_version_major);
2035             print_int("dv_version_minor", dovi->dv_version_minor);
2036             print_int("dv_profile", dovi->dv_profile);
2037             print_int("dv_level", dovi->dv_level);
2038             print_int("rpu_present_flag", dovi->rpu_present_flag);
2039             print_int("el_present_flag", dovi->el_present_flag);
2040             print_int("bl_present_flag", dovi->bl_present_flag);
2041             print_int("dv_bl_signal_compatibility_id", dovi->dv_bl_signal_compatibility_id);
2042         }
2043         writer_print_section_footer(w);
2044     }
2045     writer_print_section_footer(w);
2046 }
2047
2048 static void print_color_range(WriterContext *w, enum AVColorRange color_range)
2049 {
2050     const char *val = av_color_range_name(color_range);
2051     if (!val || color_range == AVCOL_RANGE_UNSPECIFIED) {
2052         print_str_opt("color_range", "unknown");
2053     } else {
2054         print_str("color_range", val);
2055     }
2056 }
2057
2058 static void print_color_space(WriterContext *w, enum AVColorSpace color_space)
2059 {
2060     const char *val = av_color_space_name(color_space);
2061     if (!val || color_space == AVCOL_SPC_UNSPECIFIED) {
2062         print_str_opt("color_space", "unknown");
2063     } else {
2064         print_str("color_space", val);
2065     }
2066 }
2067
2068 static void print_primaries(WriterContext *w, enum AVColorPrimaries color_primaries)
2069 {
2070     const char *val = av_color_primaries_name(color_primaries);
2071     if (!val || color_primaries == AVCOL_PRI_UNSPECIFIED) {
2072         print_str_opt("color_primaries", "unknown");
2073     } else {
2074         print_str("color_primaries", val);
2075     }
2076 }
2077
2078 static void print_color_trc(WriterContext *w, enum AVColorTransferCharacteristic color_trc)
2079 {
2080     const char *val = av_color_transfer_name(color_trc);
2081     if (!val || color_trc == AVCOL_TRC_UNSPECIFIED) {
2082         print_str_opt("color_transfer", "unknown");
2083     } else {
2084         print_str("color_transfer", val);
2085     }
2086 }
2087
2088 static void print_chroma_location(WriterContext *w, enum AVChromaLocation chroma_location)
2089 {
2090     const char *val = av_chroma_location_name(chroma_location);
2091     if (!val || chroma_location == AVCHROMA_LOC_UNSPECIFIED) {
2092         print_str_opt("chroma_location", "unspecified");
2093     } else {
2094         print_str("chroma_location", val);
2095     }
2096 }
2097
2098
2099 static void clear_log(int need_lock)
2100 {
2101     int i;
2102
2103     if (need_lock)
2104         pthread_mutex_lock(&log_mutex);
2105     for (i=0; i<log_buffer_size; i++) {
2106         av_freep(&log_buffer[i].context_name);
2107         av_freep(&log_buffer[i].parent_name);
2108         av_freep(&log_buffer[i].log_message);
2109     }
2110     log_buffer_size = 0;
2111     if(need_lock)
2112         pthread_mutex_unlock(&log_mutex);
2113 }
2114
2115 static int show_log(WriterContext *w, int section_ids, int section_id, int log_level)
2116 {
2117     int i;
2118     pthread_mutex_lock(&log_mutex);
2119     if (!log_buffer_size) {
2120         pthread_mutex_unlock(&log_mutex);
2121         return 0;
2122     }
2123     writer_print_section_header(w, section_ids);
2124
2125     for (i=0; i<log_buffer_size; i++) {
2126         if (log_buffer[i].log_level <= log_level) {
2127             writer_print_section_header(w, section_id);
2128             print_str("context", log_buffer[i].context_name);
2129             print_int("level", log_buffer[i].log_level);
2130             print_int("category", log_buffer[i].category);
2131             if (log_buffer[i].parent_name) {
2132                 print_str("parent_context", log_buffer[i].parent_name);
2133                 print_int("parent_category", log_buffer[i].parent_category);
2134             } else {
2135                 print_str_opt("parent_context", "N/A");
2136                 print_str_opt("parent_category", "N/A");
2137             }
2138             print_str("message", log_buffer[i].log_message);
2139             writer_print_section_footer(w);
2140         }
2141     }
2142     clear_log(0);
2143     pthread_mutex_unlock(&log_mutex);
2144
2145     writer_print_section_footer(w);
2146
2147     return 0;
2148 }
2149
2150 static void show_packet(WriterContext *w, InputFile *ifile, AVPacket *pkt, int packet_idx)
2151 {
2152     char val_str[128];
2153     AVStream *st = ifile->streams[pkt->stream_index].st;
2154     AVBPrint pbuf;
2155     const char *s;
2156
2157     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
2158
2159     writer_print_section_header(w, SECTION_ID_PACKET);
2160
2161     s = av_get_media_type_string(st->codecpar->codec_type);
2162     if (s) print_str    ("codec_type", s);
2163     else   print_str_opt("codec_type", "unknown");
2164     print_int("stream_index",     pkt->stream_index);
2165     print_ts  ("pts",             pkt->pts);
2166     print_time("pts_time",        pkt->pts, &st->time_base);
2167     print_ts  ("dts",             pkt->dts);
2168     print_time("dts_time",        pkt->dts, &st->time_base);
2169     print_duration_ts("duration",        pkt->duration);
2170     print_duration_time("duration_time", pkt->duration, &st->time_base);
2171     print_duration_ts("convergence_duration", pkt->convergence_duration);
2172     print_duration_time("convergence_duration_time", pkt->convergence_duration, &st->time_base);
2173     print_val("size",             pkt->size, unit_byte_str);
2174     if (pkt->pos != -1) print_fmt    ("pos", "%"PRId64, pkt->pos);
2175     else                print_str_opt("pos", "N/A");
2176     print_fmt("flags", "%c%c",      pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_',
2177               pkt->flags & AV_PKT_FLAG_DISCARD ? 'D' : '_');
2178
2179     if (pkt->side_data_elems) {
2180         int size;
2181         const uint8_t *side_metadata;
2182
2183         side_metadata = av_packet_get_side_data(pkt, AV_PKT_DATA_STRINGS_METADATA, &size);
2184         if (side_metadata && size && do_show_packet_tags) {
2185             AVDictionary *dict = NULL;
2186             if (av_packet_unpack_dictionary(side_metadata, size, &dict) >= 0)
2187                 show_tags(w, dict, SECTION_ID_PACKET_TAGS);
2188             av_dict_free(&dict);
2189         }
2190
2191         print_pkt_side_data(w, st->codecpar, pkt->side_data, pkt->side_data_elems,
2192                             SECTION_ID_PACKET_SIDE_DATA_LIST,
2193                             SECTION_ID_PACKET_SIDE_DATA);
2194     }
2195
2196     if (do_show_data)
2197         writer_print_data(w, "data", pkt->data, pkt->size);
2198     writer_print_data_hash(w, "data_hash", pkt->data, pkt->size);
2199     writer_print_section_footer(w);
2200
2201     av_bprint_finalize(&pbuf, NULL);
2202     fflush(stdout);
2203 }
2204
2205 static void show_subtitle(WriterContext *w, AVSubtitle *sub, AVStream *stream,
2206                           AVFormatContext *fmt_ctx)
2207 {
2208     AVBPrint pbuf;
2209
2210     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
2211
2212     writer_print_section_header(w, SECTION_ID_SUBTITLE);
2213
2214     print_str ("media_type",         "subtitle");
2215     print_ts  ("pts",                 sub->pts);
2216     print_time("pts_time",            sub->pts, &AV_TIME_BASE_Q);
2217     print_int ("format",              sub->format);
2218     print_int ("start_display_time",  sub->start_display_time);
2219     print_int ("end_display_time",    sub->end_display_time);
2220     print_int ("num_rects",           sub->num_rects);
2221
2222     writer_print_section_footer(w);
2223
2224     av_bprint_finalize(&pbuf, NULL);
2225     fflush(stdout);
2226 }
2227
2228 static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream,
2229                        AVFormatContext *fmt_ctx)
2230 {
2231     AVBPrint pbuf;
2232     char val_str[128];
2233     const char *s;
2234     int i;
2235
2236     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
2237
2238     writer_print_section_header(w, SECTION_ID_FRAME);
2239
2240     s = av_get_media_type_string(stream->codecpar->codec_type);
2241     if (s) print_str    ("media_type", s);
2242     else   print_str_opt("media_type", "unknown");
2243     print_int("stream_index",           stream->index);
2244     print_int("key_frame",              frame->key_frame);
2245     print_ts  ("pkt_pts",               frame->pts);
2246     print_time("pkt_pts_time",          frame->pts, &stream->time_base);
2247     print_ts  ("pkt_dts",               frame->pkt_dts);
2248     print_time("pkt_dts_time",          frame->pkt_dts, &stream->time_base);
2249     print_ts  ("best_effort_timestamp", frame->best_effort_timestamp);
2250     print_time("best_effort_timestamp_time", frame->best_effort_timestamp, &stream->time_base);
2251     print_duration_ts  ("pkt_duration",      frame->pkt_duration);
2252     print_duration_time("pkt_duration_time", frame->pkt_duration, &stream->time_base);
2253     if (frame->pkt_pos != -1) print_fmt    ("pkt_pos", "%"PRId64, frame->pkt_pos);
2254     else                      print_str_opt("pkt_pos", "N/A");
2255     if (frame->pkt_size != -1) print_val    ("pkt_size", frame->pkt_size, unit_byte_str);
2256     else                       print_str_opt("pkt_size", "N/A");
2257
2258     switch (stream->codecpar->codec_type) {
2259         AVRational sar;
2260
2261     case AVMEDIA_TYPE_VIDEO:
2262         print_int("width",                  frame->width);
2263         print_int("height",                 frame->height);
2264         s = av_get_pix_fmt_name(frame->format);
2265         if (s) print_str    ("pix_fmt", s);
2266         else   print_str_opt("pix_fmt", "unknown");
2267         sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, frame);
2268         if (sar.num) {
2269             print_q("sample_aspect_ratio", sar, ':');
2270         } else {
2271             print_str_opt("sample_aspect_ratio", "N/A");
2272         }
2273         print_fmt("pict_type",              "%c", av_get_picture_type_char(frame->pict_type));
2274         print_int("coded_picture_number",   frame->coded_picture_number);
2275         print_int("display_picture_number", frame->display_picture_number);
2276         print_int("interlaced_frame",       frame->interlaced_frame);
2277         print_int("top_field_first",        frame->top_field_first);
2278         print_int("repeat_pict",            frame->repeat_pict);
2279
2280         print_color_range(w, frame->color_range);
2281         print_color_space(w, frame->colorspace);
2282         print_primaries(w, frame->color_primaries);
2283         print_color_trc(w, frame->color_trc);
2284         print_chroma_location(w, frame->chroma_location);
2285         break;
2286
2287     case AVMEDIA_TYPE_AUDIO:
2288         s = av_get_sample_fmt_name(frame->format);
2289         if (s) print_str    ("sample_fmt", s);
2290         else   print_str_opt("sample_fmt", "unknown");
2291         print_int("nb_samples",         frame->nb_samples);
2292         print_int("channels", frame->channels);
2293         if (frame->channel_layout) {
2294             av_bprint_clear(&pbuf);
2295             av_bprint_channel_layout(&pbuf, frame->channels,
2296                                      frame->channel_layout);
2297             print_str    ("channel_layout", pbuf.str);
2298         } else
2299             print_str_opt("channel_layout", "unknown");
2300         break;
2301     }
2302     if (do_show_frame_tags)
2303         show_tags(w, frame->metadata, SECTION_ID_FRAME_TAGS);
2304     if (do_show_log)
2305         show_log(w, SECTION_ID_FRAME_LOGS, SECTION_ID_FRAME_LOG, do_show_log);
2306     if (frame->nb_side_data) {
2307         writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA_LIST);
2308         for (i = 0; i < frame->nb_side_data; i++) {
2309             AVFrameSideData *sd = frame->side_data[i];
2310             const char *name;
2311
2312             writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA);
2313             name = av_frame_side_data_name(sd->type);
2314             print_str("side_data_type", name ? name : "unknown");
2315             if (sd->type == AV_FRAME_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
2316                 writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
2317                 print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
2318             } else if (sd->type == AV_FRAME_DATA_GOP_TIMECODE && sd->size >= 8) {
2319                 char tcbuf[AV_TIMECODE_STR_SIZE];
2320                 av_timecode_make_mpeg_tc_string(tcbuf, *(int64_t *)(sd->data));
2321                 print_str("timecode", tcbuf);
2322             } else if (sd->type == AV_FRAME_DATA_S12M_TIMECODE && sd->size == 16) {
2323                 uint32_t *tc = (uint32_t*)sd->data;
2324                 int m = FFMIN(tc[0],3);
2325                 writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA_TIMECODE_LIST);
2326                 for (int j = 1; j <= m ; j++) {
2327                     char tcbuf[AV_TIMECODE_STR_SIZE];
2328                     av_timecode_make_smpte_tc_string2(tcbuf, stream->avg_frame_rate, tc[j], 0, 0);
2329                     writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA_TIMECODE);
2330                     print_str("value", tcbuf);
2331                     writer_print_section_footer(w);
2332                 }
2333                 writer_print_section_footer(w);
2334             } else if (sd->type == AV_FRAME_DATA_MASTERING_DISPLAY_METADATA) {
2335                 AVMasteringDisplayMetadata *metadata = (AVMasteringDisplayMetadata *)sd->data;
2336
2337                 if (metadata->has_primaries) {
2338                     print_q("red_x", metadata->display_primaries[0][0], '/');
2339                     print_q("red_y", metadata->display_primaries[0][1], '/');
2340                     print_q("green_x", metadata->display_primaries[1][0], '/');
2341                     print_q("green_y", metadata->display_primaries[1][1], '/');
2342                     print_q("blue_x", metadata->display_primaries[2][0], '/');
2343                     print_q("blue_y", metadata->display_primaries[2][1], '/');
2344
2345                     print_q("white_point_x", metadata->white_point[0], '/');
2346                     print_q("white_point_y", metadata->white_point[1], '/');
2347                 }
2348
2349                 if (metadata->has_luminance) {
2350                     print_q("min_luminance", metadata->min_luminance, '/');
2351                     print_q("max_luminance", metadata->max_luminance, '/');
2352                 }
2353             } else if (sd->type == AV_FRAME_DATA_DYNAMIC_HDR_PLUS) {
2354                 AVDynamicHDRPlus *metadata = (AVDynamicHDRPlus *)sd->data;
2355                 print_dynamic_hdr10_plus(w, metadata);
2356             } else if (sd->type == AV_FRAME_DATA_CONTENT_LIGHT_LEVEL) {
2357                 AVContentLightMetadata *metadata = (AVContentLightMetadata *)sd->data;
2358                 print_int("max_content", metadata->MaxCLL);
2359                 print_int("max_average", metadata->MaxFALL);
2360             } else if (sd->type == AV_FRAME_DATA_ICC_PROFILE) {
2361                 AVDictionaryEntry *tag = av_dict_get(sd->metadata, "name", NULL, AV_DICT_MATCH_CASE);
2362                 if (tag)
2363                     print_str(tag->key, tag->value);
2364                 print_int("size", sd->size);
2365             }
2366             writer_print_section_footer(w);
2367         }
2368         writer_print_section_footer(w);
2369     }
2370
2371     writer_print_section_footer(w);
2372
2373     av_bprint_finalize(&pbuf, NULL);
2374     fflush(stdout);
2375 }
2376
2377 static av_always_inline int process_frame(WriterContext *w,
2378                                           InputFile *ifile,
2379                                           AVFrame *frame, AVPacket *pkt,
2380                                           int *packet_new)
2381 {
2382     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2383     AVCodecContext *dec_ctx = ifile->streams[pkt->stream_index].dec_ctx;
2384     AVCodecParameters *par = ifile->streams[pkt->stream_index].st->codecpar;
2385     AVSubtitle sub;
2386     int ret = 0, got_frame = 0;
2387
2388     clear_log(1);
2389     if (dec_ctx && dec_ctx->codec) {
2390         switch (par->codec_type) {
2391         case AVMEDIA_TYPE_VIDEO:
2392         case AVMEDIA_TYPE_AUDIO:
2393             if (*packet_new) {
2394                 ret = avcodec_send_packet(dec_ctx, pkt);
2395                 if (ret == AVERROR(EAGAIN)) {
2396                     ret = 0;
2397                 } else if (ret >= 0 || ret == AVERROR_EOF) {
2398                     ret = 0;
2399                     *packet_new = 0;
2400                 }
2401             }
2402             if (ret >= 0) {
2403                 ret = avcodec_receive_frame(dec_ctx, frame);
2404                 if (ret >= 0) {
2405                     got_frame = 1;
2406                 } else if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
2407                     ret = 0;
2408                 }
2409             }
2410             break;
2411
2412         case AVMEDIA_TYPE_SUBTITLE:
2413             if (*packet_new)
2414                 ret = avcodec_decode_subtitle2(dec_ctx, &sub, &got_frame, pkt);
2415             *packet_new = 0;
2416             break;
2417         default:
2418             *packet_new = 0;
2419         }
2420     } else {
2421         *packet_new = 0;
2422     }
2423
2424     if (ret < 0)
2425         return ret;
2426     if (got_frame) {
2427         int is_sub = (par->codec_type == AVMEDIA_TYPE_SUBTITLE);
2428         nb_streams_frames[pkt->stream_index]++;
2429         if (do_show_frames)
2430             if (is_sub)
2431                 show_subtitle(w, &sub, ifile->streams[pkt->stream_index].st, fmt_ctx);
2432             else
2433                 show_frame(w, frame, ifile->streams[pkt->stream_index].st, fmt_ctx);
2434         if (is_sub)
2435             avsubtitle_free(&sub);
2436     }
2437     return got_frame || *packet_new;
2438 }
2439
2440 static void log_read_interval(const ReadInterval *interval, void *log_ctx, int log_level)
2441 {
2442     av_log(log_ctx, log_level, "id:%d", interval->id);
2443
2444     if (interval->has_start) {
2445         av_log(log_ctx, log_level, " start:%s%s", interval->start_is_offset ? "+" : "",
2446                av_ts2timestr(interval->start, &AV_TIME_BASE_Q));
2447     } else {
2448         av_log(log_ctx, log_level, " start:N/A");
2449     }
2450
2451     if (interval->has_end) {
2452         av_log(log_ctx, log_level, " end:%s", interval->end_is_offset ? "+" : "");
2453         if (interval->duration_frames)
2454             av_log(log_ctx, log_level, "#%"PRId64, interval->end);
2455         else
2456             av_log(log_ctx, log_level, "%s", av_ts2timestr(interval->end, &AV_TIME_BASE_Q));
2457     } else {
2458         av_log(log_ctx, log_level, " end:N/A");
2459     }
2460
2461     av_log(log_ctx, log_level, "\n");
2462 }
2463
2464 static int read_interval_packets(WriterContext *w, InputFile *ifile,
2465                                  const ReadInterval *interval, int64_t *cur_ts)
2466 {
2467     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2468     AVPacket pkt;
2469     AVFrame *frame = NULL;
2470     int ret = 0, i = 0, frame_count = 0;
2471     int64_t start = -INT64_MAX, end = interval->end;
2472     int has_start = 0, has_end = interval->has_end && !interval->end_is_offset;
2473
2474     av_init_packet(&pkt);
2475
2476     av_log(NULL, AV_LOG_VERBOSE, "Processing read interval ");
2477     log_read_interval(interval, NULL, AV_LOG_VERBOSE);
2478
2479     if (interval->has_start) {
2480         int64_t target;
2481         if (interval->start_is_offset) {
2482             if (*cur_ts == AV_NOPTS_VALUE) {
2483                 av_log(NULL, AV_LOG_ERROR,
2484                        "Could not seek to relative position since current "
2485                        "timestamp is not defined\n");
2486                 ret = AVERROR(EINVAL);
2487                 goto end;
2488             }
2489             target = *cur_ts + interval->start;
2490         } else {
2491             target = interval->start;
2492         }
2493
2494         av_log(NULL, AV_LOG_VERBOSE, "Seeking to read interval start point %s\n",
2495                av_ts2timestr(target, &AV_TIME_BASE_Q));
2496         if ((ret = avformat_seek_file(fmt_ctx, -1, -INT64_MAX, target, INT64_MAX, 0)) < 0) {
2497             av_log(NULL, AV_LOG_ERROR, "Could not seek to position %"PRId64": %s\n",
2498                    interval->start, av_err2str(ret));
2499             goto end;
2500         }
2501     }
2502
2503     frame = av_frame_alloc();
2504     if (!frame) {
2505         ret = AVERROR(ENOMEM);
2506         goto end;
2507     }
2508     while (!av_read_frame(fmt_ctx, &pkt)) {
2509         if (fmt_ctx->nb_streams > nb_streams) {
2510             REALLOCZ_ARRAY_STREAM(nb_streams_frames,  nb_streams, fmt_ctx->nb_streams);
2511             REALLOCZ_ARRAY_STREAM(nb_streams_packets, nb_streams, fmt_ctx->nb_streams);
2512             REALLOCZ_ARRAY_STREAM(selected_streams,   nb_streams, fmt_ctx->nb_streams);
2513             nb_streams = fmt_ctx->nb_streams;
2514         }
2515         if (selected_streams[pkt.stream_index]) {
2516             AVRational tb = ifile->streams[pkt.stream_index].st->time_base;
2517
2518             if (pkt.pts != AV_NOPTS_VALUE)
2519                 *cur_ts = av_rescale_q(pkt.pts, tb, AV_TIME_BASE_Q);
2520
2521             if (!has_start && *cur_ts != AV_NOPTS_VALUE) {
2522                 start = *cur_ts;
2523                 has_start = 1;
2524             }
2525
2526             if (has_start && !has_end && interval->end_is_offset) {
2527                 end = start + interval->end;
2528                 has_end = 1;
2529             }
2530
2531             if (interval->end_is_offset && interval->duration_frames) {
2532                 if (frame_count >= interval->end)
2533                     break;
2534             } else if (has_end && *cur_ts != AV_NOPTS_VALUE && *cur_ts >= end) {
2535                 break;
2536             }
2537
2538             frame_count++;
2539             if (do_read_packets) {
2540                 if (do_show_packets)
2541                     show_packet(w, ifile, &pkt, i++);
2542                 nb_streams_packets[pkt.stream_index]++;
2543             }
2544             if (do_read_frames) {
2545                 int packet_new = 1;
2546                 while (process_frame(w, ifile, frame, &pkt, &packet_new) > 0);
2547             }
2548         }
2549         av_packet_unref(&pkt);
2550     }
2551     av_packet_unref(&pkt);
2552     //Flush remaining frames that are cached in the decoder
2553     for (i = 0; i < fmt_ctx->nb_streams; i++) {
2554         pkt.stream_index = i;
2555         if (do_read_frames)
2556             while (process_frame(w, ifile, frame, &pkt, &(int){1}) > 0);
2557     }
2558
2559 end:
2560     av_frame_free(&frame);
2561     if (ret < 0) {
2562         av_log(NULL, AV_LOG_ERROR, "Could not read packets in interval ");
2563         log_read_interval(interval, NULL, AV_LOG_ERROR);
2564     }
2565     return ret;
2566 }
2567
2568 static int read_packets(WriterContext *w, InputFile *ifile)
2569 {
2570     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2571     int i, ret = 0;
2572     int64_t cur_ts = fmt_ctx->start_time;
2573
2574     if (read_intervals_nb == 0) {
2575         ReadInterval interval = (ReadInterval) { .has_start = 0, .has_end = 0 };
2576         ret = read_interval_packets(w, ifile, &interval, &cur_ts);
2577     } else {
2578         for (i = 0; i < read_intervals_nb; i++) {
2579             ret = read_interval_packets(w, ifile, &read_intervals[i], &cur_ts);
2580             if (ret < 0)
2581                 break;
2582         }
2583     }
2584
2585     return ret;
2586 }
2587
2588 static int show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx, InputStream *ist, int in_program)
2589 {
2590     AVStream *stream = ist->st;
2591     AVCodecParameters *par;
2592     AVCodecContext *dec_ctx;
2593     char val_str[128];
2594     const char *s;
2595     AVRational sar, dar;
2596     AVBPrint pbuf;
2597     const AVCodecDescriptor *cd;
2598     int ret = 0;
2599     const char *profile = NULL;
2600
2601     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
2602
2603     writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM : SECTION_ID_STREAM);
2604
2605     print_int("index", stream->index);
2606
2607     par     = stream->codecpar;
2608     dec_ctx = ist->dec_ctx;
2609     if (cd = avcodec_descriptor_get(par->codec_id)) {
2610         print_str("codec_name", cd->name);
2611         if (!do_bitexact) {
2612             print_str("codec_long_name",
2613                       cd->long_name ? cd->long_name : "unknown");
2614         }
2615     } else {
2616         print_str_opt("codec_name", "unknown");
2617         if (!do_bitexact) {
2618             print_str_opt("codec_long_name", "unknown");
2619         }
2620     }
2621
2622     if (!do_bitexact && (profile = avcodec_profile_name(par->codec_id, par->profile)))
2623         print_str("profile", profile);
2624     else {
2625         if (par->profile != FF_PROFILE_UNKNOWN) {
2626             char profile_num[12];
2627             snprintf(profile_num, sizeof(profile_num), "%d", par->profile);
2628             print_str("profile", profile_num);
2629         } else
2630             print_str_opt("profile", "unknown");
2631     }
2632
2633     s = av_get_media_type_string(par->codec_type);
2634     if (s) print_str    ("codec_type", s);
2635     else   print_str_opt("codec_type", "unknown");
2636 #if FF_API_LAVF_AVCTX
2637     if (dec_ctx)
2638         print_q("codec_time_base", dec_ctx->time_base, '/');
2639 #endif
2640
2641     /* print AVI/FourCC tag */
2642     print_str("codec_tag_string",    av_fourcc2str(par->codec_tag));
2643     print_fmt("codec_tag", "0x%04"PRIx32, par->codec_tag);
2644
2645     switch (par->codec_type) {
2646     case AVMEDIA_TYPE_VIDEO:
2647         print_int("width",        par->width);
2648         print_int("height",       par->height);
2649         if (dec_ctx) {
2650             print_int("coded_width",  dec_ctx->coded_width);
2651             print_int("coded_height", dec_ctx->coded_height);
2652             print_int("closed_captions", !!(dec_ctx->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS));
2653         }
2654         print_int("has_b_frames", par->video_delay);
2655         sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, NULL);
2656         if (sar.num) {
2657             print_q("sample_aspect_ratio", sar, ':');
2658             av_reduce(&dar.num, &dar.den,
2659                       par->width  * sar.num,
2660                       par->height * sar.den,
2661                       1024*1024);
2662             print_q("display_aspect_ratio", dar, ':');
2663         } else {
2664             print_str_opt("sample_aspect_ratio", "N/A");
2665             print_str_opt("display_aspect_ratio", "N/A");
2666         }
2667         s = av_get_pix_fmt_name(par->format);
2668         if (s) print_str    ("pix_fmt", s);
2669         else   print_str_opt("pix_fmt", "unknown");
2670         print_int("level",   par->level);
2671
2672         print_color_range(w, par->color_range);
2673         print_color_space(w, par->color_space);
2674         print_color_trc(w, par->color_trc);
2675         print_primaries(w, par->color_primaries);
2676         print_chroma_location(w, par->chroma_location);
2677
2678         if (par->field_order == AV_FIELD_PROGRESSIVE)
2679             print_str("field_order", "progressive");
2680         else if (par->field_order == AV_FIELD_TT)
2681             print_str("field_order", "tt");
2682         else if (par->field_order == AV_FIELD_BB)
2683             print_str("field_order", "bb");
2684         else if (par->field_order == AV_FIELD_TB)
2685             print_str("field_order", "tb");
2686         else if (par->field_order == AV_FIELD_BT)
2687             print_str("field_order", "bt");
2688         else
2689             print_str_opt("field_order", "unknown");
2690
2691 #if FF_API_PRIVATE_OPT
2692         if (dec_ctx && dec_ctx->timecode_frame_start >= 0) {
2693             char tcbuf[AV_TIMECODE_STR_SIZE];
2694             av_timecode_make_mpeg_tc_string(tcbuf, dec_ctx->timecode_frame_start);
2695             print_str("timecode", tcbuf);
2696         } else {
2697             print_str_opt("timecode", "N/A");
2698         }
2699 #endif
2700         if (dec_ctx)
2701             print_int("refs", dec_ctx->refs);
2702         break;
2703
2704     case AVMEDIA_TYPE_AUDIO:
2705         s = av_get_sample_fmt_name(par->format);
2706         if (s) print_str    ("sample_fmt", s);
2707         else   print_str_opt("sample_fmt", "unknown");
2708         print_val("sample_rate",     par->sample_rate, unit_hertz_str);
2709         print_int("channels",        par->channels);
2710
2711         if (par->channel_layout) {
2712             av_bprint_clear(&pbuf);
2713             av_bprint_channel_layout(&pbuf, par->channels, par->channel_layout);
2714             print_str    ("channel_layout", pbuf.str);
2715         } else {
2716             print_str_opt("channel_layout", "unknown");
2717         }
2718
2719         print_int("bits_per_sample", av_get_bits_per_sample(par->codec_id));
2720         break;
2721
2722     case AVMEDIA_TYPE_SUBTITLE:
2723         if (par->width)
2724             print_int("width",       par->width);
2725         else
2726             print_str_opt("width",   "N/A");
2727         if (par->height)
2728             print_int("height",      par->height);
2729         else
2730             print_str_opt("height",  "N/A");
2731         break;
2732     }
2733
2734     if (dec_ctx && dec_ctx->codec && dec_ctx->codec->priv_class && show_private_data) {
2735         const AVOption *opt = NULL;
2736         while (opt = av_opt_next(dec_ctx->priv_data,opt)) {
2737             uint8_t *str;
2738             if (opt->flags) continue;
2739             if (av_opt_get(dec_ctx->priv_data, opt->name, 0, &str) >= 0) {
2740                 print_str(opt->name, str);
2741                 av_free(str);
2742             }
2743         }
2744     }
2745
2746     if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) print_fmt    ("id", "0x%x", stream->id);
2747     else                                          print_str_opt("id", "N/A");
2748     print_q("r_frame_rate",   stream->r_frame_rate,   '/');
2749     print_q("avg_frame_rate", stream->avg_frame_rate, '/');
2750     print_q("time_base",      stream->time_base,      '/');
2751     print_ts  ("start_pts",   stream->start_time);
2752     print_time("start_time",  stream->start_time, &stream->time_base);
2753     print_ts  ("duration_ts", stream->duration);
2754     print_time("duration",    stream->duration, &stream->time_base);
2755     if (par->bit_rate > 0)     print_val    ("bit_rate", par->bit_rate, unit_bit_per_second_str);
2756     else                       print_str_opt("bit_rate", "N/A");
2757     if (dec_ctx && dec_ctx->rc_max_rate > 0)
2758         print_val ("max_bit_rate", dec_ctx->rc_max_rate, unit_bit_per_second_str);
2759     else
2760         print_str_opt("max_bit_rate", "N/A");
2761     if (dec_ctx && dec_ctx->bits_per_raw_sample > 0) print_fmt("bits_per_raw_sample", "%d", dec_ctx->bits_per_raw_sample);
2762     else                                             print_str_opt("bits_per_raw_sample", "N/A");
2763     if (stream->nb_frames) print_fmt    ("nb_frames", "%"PRId64, stream->nb_frames);
2764     else                   print_str_opt("nb_frames", "N/A");
2765     if (nb_streams_frames[stream_idx])  print_fmt    ("nb_read_frames", "%"PRIu64, nb_streams_frames[stream_idx]);
2766     else                                print_str_opt("nb_read_frames", "N/A");
2767     if (nb_streams_packets[stream_idx]) print_fmt    ("nb_read_packets", "%"PRIu64, nb_streams_packets[stream_idx]);
2768     else                                print_str_opt("nb_read_packets", "N/A");
2769     if (do_show_data)
2770         writer_print_data(w, "extradata", par->extradata,
2771                                           par->extradata_size);
2772     writer_print_data_hash(w, "extradata_hash", par->extradata,
2773                                                 par->extradata_size);
2774
2775     /* Print disposition information */
2776 #define PRINT_DISPOSITION(flagname, name) do {                                \
2777         print_int(name, !!(stream->disposition & AV_DISPOSITION_##flagname)); \
2778     } while (0)
2779
2780     if (do_show_stream_disposition) {
2781         writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM_DISPOSITION : SECTION_ID_STREAM_DISPOSITION);
2782         PRINT_DISPOSITION(DEFAULT,          "default");
2783         PRINT_DISPOSITION(DUB,              "dub");
2784         PRINT_DISPOSITION(ORIGINAL,         "original");
2785         PRINT_DISPOSITION(COMMENT,          "comment");
2786         PRINT_DISPOSITION(LYRICS,           "lyrics");
2787         PRINT_DISPOSITION(KARAOKE,          "karaoke");
2788         PRINT_DISPOSITION(FORCED,           "forced");
2789         PRINT_DISPOSITION(HEARING_IMPAIRED, "hearing_impaired");
2790         PRINT_DISPOSITION(VISUAL_IMPAIRED,  "visual_impaired");
2791         PRINT_DISPOSITION(CLEAN_EFFECTS,    "clean_effects");
2792         PRINT_DISPOSITION(ATTACHED_PIC,     "attached_pic");
2793         PRINT_DISPOSITION(TIMED_THUMBNAILS, "timed_thumbnails");
2794         writer_print_section_footer(w);
2795     }
2796
2797     if (do_show_stream_tags)
2798         ret = show_tags(w, stream->metadata, in_program ? SECTION_ID_PROGRAM_STREAM_TAGS : SECTION_ID_STREAM_TAGS);
2799
2800     if (stream->nb_side_data) {
2801         print_pkt_side_data(w, stream->codecpar, stream->side_data, stream->nb_side_data,
2802                             SECTION_ID_STREAM_SIDE_DATA_LIST,
2803                             SECTION_ID_STREAM_SIDE_DATA);
2804     }
2805
2806     writer_print_section_footer(w);
2807     av_bprint_finalize(&pbuf, NULL);
2808     fflush(stdout);
2809
2810     return ret;
2811 }
2812
2813 static int show_streams(WriterContext *w, InputFile *ifile)
2814 {
2815     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2816     int i, ret = 0;
2817
2818     writer_print_section_header(w, SECTION_ID_STREAMS);
2819     for (i = 0; i < ifile->nb_streams; i++)
2820         if (selected_streams[i]) {
2821             ret = show_stream(w, fmt_ctx, i, &ifile->streams[i], 0);
2822             if (ret < 0)
2823                 break;
2824         }
2825     writer_print_section_footer(w);
2826
2827     return ret;
2828 }
2829
2830 static int show_program(WriterContext *w, InputFile *ifile, AVProgram *program)
2831 {
2832     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2833     int i, ret = 0;
2834
2835     writer_print_section_header(w, SECTION_ID_PROGRAM);
2836     print_int("program_id", program->id);
2837     print_int("program_num", program->program_num);
2838     print_int("nb_streams", program->nb_stream_indexes);
2839     print_int("pmt_pid", program->pmt_pid);
2840     print_int("pcr_pid", program->pcr_pid);
2841     print_ts("start_pts", program->start_time);
2842     print_time("start_time", program->start_time, &AV_TIME_BASE_Q);
2843     print_ts("end_pts", program->end_time);
2844     print_time("end_time", program->end_time, &AV_TIME_BASE_Q);
2845     if (do_show_program_tags)
2846         ret = show_tags(w, program->metadata, SECTION_ID_PROGRAM_TAGS);
2847     if (ret < 0)
2848         goto end;
2849
2850     writer_print_section_header(w, SECTION_ID_PROGRAM_STREAMS);
2851     for (i = 0; i < program->nb_stream_indexes; i++) {
2852         if (selected_streams[program->stream_index[i]]) {
2853             ret = show_stream(w, fmt_ctx, program->stream_index[i], &ifile->streams[program->stream_index[i]], 1);
2854             if (ret < 0)
2855                 break;
2856         }
2857     }
2858     writer_print_section_footer(w);
2859
2860 end:
2861     writer_print_section_footer(w);
2862     return ret;
2863 }
2864
2865 static int show_programs(WriterContext *w, InputFile *ifile)
2866 {
2867     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2868     int i, ret = 0;
2869
2870     writer_print_section_header(w, SECTION_ID_PROGRAMS);
2871     for (i = 0; i < fmt_ctx->nb_programs; i++) {
2872         AVProgram *program = fmt_ctx->programs[i];
2873         if (!program)
2874             continue;
2875         ret = show_program(w, ifile, program);
2876         if (ret < 0)
2877             break;
2878     }
2879     writer_print_section_footer(w);
2880     return ret;
2881 }
2882
2883 static int show_chapters(WriterContext *w, InputFile *ifile)
2884 {
2885     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2886     int i, ret = 0;
2887
2888     writer_print_section_header(w, SECTION_ID_CHAPTERS);
2889     for (i = 0; i < fmt_ctx->nb_chapters; i++) {
2890         AVChapter *chapter = fmt_ctx->chapters[i];
2891
2892         writer_print_section_header(w, SECTION_ID_CHAPTER);
2893         print_int("id", chapter->id);
2894         print_q  ("time_base", chapter->time_base, '/');
2895         print_int("start", chapter->start);
2896         print_time("start_time", chapter->start, &chapter->time_base);
2897         print_int("end", chapter->end);
2898         print_time("end_time", chapter->end, &chapter->time_base);
2899         if (do_show_chapter_tags)
2900             ret = show_tags(w, chapter->metadata, SECTION_ID_CHAPTER_TAGS);
2901         writer_print_section_footer(w);
2902     }
2903     writer_print_section_footer(w);
2904
2905     return ret;
2906 }
2907
2908 static int show_format(WriterContext *w, InputFile *ifile)
2909 {
2910     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2911     char val_str[128];
2912     int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1;
2913     int ret = 0;
2914
2915     writer_print_section_header(w, SECTION_ID_FORMAT);
2916     print_str_validate("filename", fmt_ctx->url);
2917     print_int("nb_streams",       fmt_ctx->nb_streams);
2918     print_int("nb_programs",      fmt_ctx->nb_programs);
2919     print_str("format_name",      fmt_ctx->iformat->name);
2920     if (!do_bitexact) {
2921         if (fmt_ctx->iformat->long_name) print_str    ("format_long_name", fmt_ctx->iformat->long_name);
2922         else                             print_str_opt("format_long_name", "unknown");
2923     }
2924     print_time("start_time",      fmt_ctx->start_time, &AV_TIME_BASE_Q);
2925     print_time("duration",        fmt_ctx->duration,   &AV_TIME_BASE_Q);
2926     if (size >= 0) print_val    ("size", size, unit_byte_str);
2927     else           print_str_opt("size", "N/A");
2928     if (fmt_ctx->bit_rate > 0) print_val    ("bit_rate", fmt_ctx->bit_rate, unit_bit_per_second_str);
2929     else                       print_str_opt("bit_rate", "N/A");
2930     print_int("probe_score", fmt_ctx->probe_score);
2931     if (do_show_format_tags)
2932         ret = show_tags(w, fmt_ctx->metadata, SECTION_ID_FORMAT_TAGS);
2933
2934     writer_print_section_footer(w);
2935     fflush(stdout);
2936     return ret;
2937 }
2938
2939 static void show_error(WriterContext *w, int err)
2940 {
2941     char errbuf[128];
2942     const char *errbuf_ptr = errbuf;
2943
2944     if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
2945         errbuf_ptr = strerror(AVUNERROR(err));
2946
2947     writer_print_section_header(w, SECTION_ID_ERROR);
2948     print_int("code", err);
2949     print_str("string", errbuf_ptr);
2950     writer_print_section_footer(w);
2951 }
2952
2953 static int open_input_file(InputFile *ifile, const char *filename,
2954                            const char *print_filename)
2955 {
2956     int err, i;
2957     AVFormatContext *fmt_ctx = NULL;
2958     AVDictionaryEntry *t = NULL;
2959     int scan_all_pmts_set = 0;
2960
2961     fmt_ctx = avformat_alloc_context();
2962     if (!fmt_ctx) {
2963         print_error(filename, AVERROR(ENOMEM));
2964         exit_program(1);
2965     }
2966
2967     if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
2968         av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
2969         scan_all_pmts_set = 1;
2970     }
2971     if ((err = avformat_open_input(&fmt_ctx, filename,
2972                                    iformat, &format_opts)) < 0) {
2973         print_error(filename, err);
2974         return err;
2975     }
2976     if (print_filename) {
2977         av_freep(&fmt_ctx->url);
2978         fmt_ctx->url = av_strdup(print_filename);
2979     }
2980     ifile->fmt_ctx = fmt_ctx;
2981     if (scan_all_pmts_set)
2982         av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
2983     while ((t = av_dict_get(format_opts, "", t, AV_DICT_IGNORE_SUFFIX)))
2984         av_log(NULL, AV_LOG_WARNING, "Option %s skipped - not known to demuxer.\n", t->key);
2985
2986     if (find_stream_info) {
2987         AVDictionary **opts = setup_find_stream_info_opts(fmt_ctx, codec_opts);
2988         int orig_nb_streams = fmt_ctx->nb_streams;
2989
2990         err = avformat_find_stream_info(fmt_ctx, opts);
2991
2992         for (i = 0; i < orig_nb_streams; i++)
2993             av_dict_free(&opts[i]);
2994         av_freep(&opts);
2995
2996         if (err < 0) {
2997             print_error(filename, err);
2998             return err;
2999         }
3000     }
3001
3002     av_dump_format(fmt_ctx, 0, filename, 0);
3003
3004     ifile->streams = av_mallocz_array(fmt_ctx->nb_streams,
3005                                       sizeof(*ifile->streams));
3006     if (!ifile->streams)
3007         exit(1);
3008     ifile->nb_streams = fmt_ctx->nb_streams;
3009
3010     /* bind a decoder to each input stream */
3011     for (i = 0; i < fmt_ctx->nb_streams; i++) {
3012         InputStream *ist = &ifile->streams[i];
3013         AVStream *stream = fmt_ctx->streams[i];
3014         AVCodec *codec;
3015
3016         ist->st = stream;
3017
3018         if (stream->codecpar->codec_id == AV_CODEC_ID_PROBE) {
3019             av_log(NULL, AV_LOG_WARNING,
3020                    "Failed to probe codec for input stream %d\n",
3021                     stream->index);
3022             continue;
3023         }
3024
3025         codec = avcodec_find_decoder(stream->codecpar->codec_id);
3026         if (!codec) {
3027             av_log(NULL, AV_LOG_WARNING,
3028                     "Unsupported codec with id %d for input stream %d\n",
3029                     stream->codecpar->codec_id, stream->index);
3030             continue;
3031         }
3032         {
3033             AVDictionary *opts = filter_codec_opts(codec_opts, stream->codecpar->codec_id,
3034                                                    fmt_ctx, stream, codec);
3035
3036             ist->dec_ctx = avcodec_alloc_context3(codec);
3037             if (!ist->dec_ctx)
3038                 exit(1);
3039
3040             err = avcodec_parameters_to_context(ist->dec_ctx, stream->codecpar);
3041             if (err < 0)
3042                 exit(1);
3043
3044             if (do_show_log) {
3045                 // For loging it is needed to disable at least frame threads as otherwise
3046                 // the log information would need to be reordered and matches up to contexts and frames
3047                 // That is in fact possible but not trivial
3048                 av_dict_set(&codec_opts, "threads", "1", 0);
3049             }
3050
3051             ist->dec_ctx->pkt_timebase = stream->time_base;
3052             ist->dec_ctx->framerate = stream->avg_frame_rate;
3053 #if FF_API_LAVF_AVCTX
3054             ist->dec_ctx->properties = stream->codec->properties;
3055             ist->dec_ctx->coded_width = stream->codec->coded_width;
3056             ist->dec_ctx->coded_height = stream->codec->coded_height;
3057 #endif
3058
3059             if (avcodec_open2(ist->dec_ctx, codec, &opts) < 0) {
3060                 av_log(NULL, AV_LOG_WARNING, "Could not open codec for input stream %d\n",
3061                        stream->index);
3062                 exit(1);
3063             }
3064
3065             if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
3066                 av_log(NULL, AV_LOG_ERROR, "Option %s for input stream %d not found\n",
3067                        t->key, stream->index);
3068                 return AVERROR_OPTION_NOT_FOUND;
3069             }
3070         }
3071     }
3072
3073     ifile->fmt_ctx = fmt_ctx;
3074     return 0;
3075 }
3076
3077 static void close_input_file(InputFile *ifile)
3078 {
3079     int i;
3080
3081     /* close decoder for each stream */
3082     for (i = 0; i < ifile->nb_streams; i++)
3083         if (ifile->streams[i].st->codecpar->codec_id != AV_CODEC_ID_NONE)
3084             avcodec_free_context(&ifile->streams[i].dec_ctx);
3085
3086     av_freep(&ifile->streams);
3087     ifile->nb_streams = 0;
3088
3089     avformat_close_input(&ifile->fmt_ctx);
3090 }
3091
3092 static int probe_file(WriterContext *wctx, const char *filename,
3093                       const char *print_filename)
3094 {
3095     InputFile ifile = { 0 };
3096     int ret, i;
3097     int section_id;
3098
3099     do_read_frames = do_show_frames || do_count_frames;
3100     do_read_packets = do_show_packets || do_count_packets;
3101
3102     ret = open_input_file(&ifile, filename, print_filename);
3103     if (ret < 0)
3104         goto end;
3105
3106 #define CHECK_END if (ret < 0) goto end
3107
3108     nb_streams = ifile.fmt_ctx->nb_streams;
3109     REALLOCZ_ARRAY_STREAM(nb_streams_frames,0,ifile.fmt_ctx->nb_streams);
3110     REALLOCZ_ARRAY_STREAM(nb_streams_packets,0,ifile.fmt_ctx->nb_streams);
3111     REALLOCZ_ARRAY_STREAM(selected_streams,0,ifile.fmt_ctx->nb_streams);
3112
3113     for (i = 0; i < ifile.fmt_ctx->nb_streams; i++) {
3114         if (stream_specifier) {
3115             ret = avformat_match_stream_specifier(ifile.fmt_ctx,
3116                                                   ifile.fmt_ctx->streams[i],
3117                                                   stream_specifier);
3118             CHECK_END;
3119             else
3120                 selected_streams[i] = ret;
3121             ret = 0;
3122         } else {
3123             selected_streams[i] = 1;
3124         }
3125         if (!selected_streams[i])
3126             ifile.fmt_ctx->streams[i]->discard = AVDISCARD_ALL;
3127     }
3128
3129     if (do_read_frames || do_read_packets) {
3130         if (do_show_frames && do_show_packets &&
3131             wctx->writer->flags & WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER)
3132             section_id = SECTION_ID_PACKETS_AND_FRAMES;
3133         else if (do_show_packets && !do_show_frames)
3134             section_id = SECTION_ID_PACKETS;
3135         else // (!do_show_packets && do_show_frames)
3136             section_id = SECTION_ID_FRAMES;
3137         if (do_show_frames || do_show_packets)
3138             writer_print_section_header(wctx, section_id);
3139         ret = read_packets(wctx, &ifile);
3140         if (do_show_frames || do_show_packets)
3141             writer_print_section_footer(wctx);
3142         CHECK_END;
3143     }
3144
3145     if (do_show_programs) {
3146         ret = show_programs(wctx, &ifile);
3147         CHECK_END;
3148     }
3149
3150     if (do_show_streams) {
3151         ret = show_streams(wctx, &ifile);
3152         CHECK_END;
3153     }
3154     if (do_show_chapters) {
3155         ret = show_chapters(wctx, &ifile);
3156         CHECK_END;
3157     }
3158     if (do_show_format) {
3159         ret = show_format(wctx, &ifile);
3160         CHECK_END;
3161     }
3162
3163 end:
3164     if (ifile.fmt_ctx)
3165         close_input_file(&ifile);
3166     av_freep(&nb_streams_frames);
3167     av_freep(&nb_streams_packets);
3168     av_freep(&selected_streams);
3169
3170     return ret;
3171 }
3172
3173 static void show_usage(void)
3174 {
3175     av_log(NULL, AV_LOG_INFO, "Simple multimedia streams analyzer\n");
3176     av_log(NULL, AV_LOG_INFO, "usage: %s [OPTIONS] [INPUT_FILE]\n", program_name);
3177     av_log(NULL, AV_LOG_INFO, "\n");
3178 }
3179
3180 static void ffprobe_show_program_version(WriterContext *w)
3181 {
3182     AVBPrint pbuf;
3183     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
3184
3185     writer_print_section_header(w, SECTION_ID_PROGRAM_VERSION);
3186     print_str("version", FFMPEG_VERSION);
3187     print_fmt("copyright", "Copyright (c) %d-%d the FFmpeg developers",
3188               program_birth_year, CONFIG_THIS_YEAR);
3189     print_str("compiler_ident", CC_IDENT);
3190     print_str("configuration", FFMPEG_CONFIGURATION);
3191     writer_print_section_footer(w);
3192
3193     av_bprint_finalize(&pbuf, NULL);
3194 }
3195
3196 #define SHOW_LIB_VERSION(libname, LIBNAME)                              \
3197     do {                                                                \
3198         if (CONFIG_##LIBNAME) {                                         \
3199             unsigned int version = libname##_version();                 \
3200             writer_print_section_header(w, SECTION_ID_LIBRARY_VERSION); \
3201             print_str("name",    "lib" #libname);                       \
3202             print_int("major",   LIB##LIBNAME##_VERSION_MAJOR);         \
3203             print_int("minor",   LIB##LIBNAME##_VERSION_MINOR);         \
3204             print_int("micro",   LIB##LIBNAME##_VERSION_MICRO);         \
3205             print_int("version", version);                              \
3206             print_str("ident",   LIB##LIBNAME##_IDENT);                 \
3207             writer_print_section_footer(w);                             \
3208         }                                                               \
3209     } while (0)
3210
3211 static void ffprobe_show_library_versions(WriterContext *w)
3212 {
3213     writer_print_section_header(w, SECTION_ID_LIBRARY_VERSIONS);
3214     SHOW_LIB_VERSION(avutil,     AVUTIL);
3215     SHOW_LIB_VERSION(avcodec,    AVCODEC);
3216     SHOW_LIB_VERSION(avformat,   AVFORMAT);
3217     SHOW_LIB_VERSION(avdevice,   AVDEVICE);
3218     SHOW_LIB_VERSION(avfilter,   AVFILTER);
3219     SHOW_LIB_VERSION(swscale,    SWSCALE);
3220     SHOW_LIB_VERSION(swresample, SWRESAMPLE);
3221     SHOW_LIB_VERSION(postproc,   POSTPROC);
3222     writer_print_section_footer(w);
3223 }
3224
3225 #define PRINT_PIX_FMT_FLAG(flagname, name)                                \
3226     do {                                                                  \
3227         print_int(name, !!(pixdesc->flags & AV_PIX_FMT_FLAG_##flagname)); \
3228     } while (0)
3229
3230 static void ffprobe_show_pixel_formats(WriterContext *w)
3231 {
3232     const AVPixFmtDescriptor *pixdesc = NULL;
3233     int i, n;
3234
3235     writer_print_section_header(w, SECTION_ID_PIXEL_FORMATS);
3236     while (pixdesc = av_pix_fmt_desc_next(pixdesc)) {
3237         writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT);
3238         print_str("name", pixdesc->name);
3239         print_int("nb_components", pixdesc->nb_components);
3240         if ((pixdesc->nb_components >= 3) && !(pixdesc->flags & AV_PIX_FMT_FLAG_RGB)) {
3241             print_int    ("log2_chroma_w", pixdesc->log2_chroma_w);
3242             print_int    ("log2_chroma_h", pixdesc->log2_chroma_h);
3243         } else {
3244             print_str_opt("log2_chroma_w", "N/A");
3245             print_str_opt("log2_chroma_h", "N/A");
3246         }
3247         n = av_get_bits_per_pixel(pixdesc);
3248         if (n) print_int    ("bits_per_pixel", n);
3249         else   print_str_opt("bits_per_pixel", "N/A");
3250         if (do_show_pixel_format_flags) {
3251             writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_FLAGS);
3252             PRINT_PIX_FMT_FLAG(BE,        "big_endian");
3253             PRINT_PIX_FMT_FLAG(PAL,       "palette");
3254             PRINT_PIX_FMT_FLAG(BITSTREAM, "bitstream");
3255             PRINT_PIX_FMT_FLAG(HWACCEL,   "hwaccel");
3256             PRINT_PIX_FMT_FLAG(PLANAR,    "planar");
3257             PRINT_PIX_FMT_FLAG(RGB,       "rgb");
3258 #if FF_API_PSEUDOPAL
3259             PRINT_PIX_FMT_FLAG(PSEUDOPAL, "pseudopal");
3260 #endif
3261             PRINT_PIX_FMT_FLAG(ALPHA,     "alpha");
3262             writer_print_section_footer(w);
3263         }
3264         if (do_show_pixel_format_components && (pixdesc->nb_components > 0)) {
3265             writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_COMPONENTS);
3266             for (i = 0; i < pixdesc->nb_components; i++) {
3267                 writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_COMPONENT);
3268                 print_int("index", i + 1);
3269                 print_int("bit_depth", pixdesc->comp[i].depth);
3270                 writer_print_section_footer(w);
3271             }
3272             writer_print_section_footer(w);
3273         }
3274         writer_print_section_footer(w);
3275     }
3276     writer_print_section_footer(w);
3277 }
3278
3279 static int opt_format(void *optctx, const char *opt, const char *arg)
3280 {
3281     iformat = av_find_input_format(arg);
3282     if (!iformat) {
3283         av_log(NULL, AV_LOG_ERROR, "Unknown input format: %s\n", arg);
3284         return AVERROR(EINVAL);
3285     }
3286     return 0;
3287 }
3288
3289 static inline void mark_section_show_entries(SectionID section_id,
3290                                              int show_all_entries, AVDictionary *entries)
3291 {
3292     struct section *section = &sections[section_id];
3293
3294     section->show_all_entries = show_all_entries;
3295     if (show_all_entries) {
3296         SectionID *id;
3297         for (id = section->children_ids; *id != -1; id++)
3298             mark_section_show_entries(*id, show_all_entries, entries);
3299     } else {
3300         av_dict_copy(&section->entries_to_show, entries, 0);
3301     }
3302 }
3303
3304 static int match_section(const char *section_name,
3305                          int show_all_entries, AVDictionary *entries)
3306 {
3307     int i, ret = 0;
3308
3309     for (i = 0; i < FF_ARRAY_ELEMS(sections); i++) {
3310         const struct section *section = &sections[i];
3311         if (!strcmp(section_name, section->name) ||
3312             (section->unique_name && !strcmp(section_name, section->unique_name))) {
3313             av_log(NULL, AV_LOG_DEBUG,
3314                    "'%s' matches section with unique name '%s'\n", section_name,
3315                    (char *)av_x_if_null(section->unique_name, section->name));
3316             ret++;
3317             mark_section_show_entries(section->id, show_all_entries, entries);
3318         }
3319     }
3320     return ret;
3321 }
3322
3323 static int opt_show_entries(void *optctx, const char *opt, const char *arg)
3324 {
3325     const char *p = arg;
3326     int ret = 0;
3327
3328     while (*p) {
3329         AVDictionary *entries = NULL;
3330         char *section_name = av_get_token(&p, "=:");
3331         int show_all_entries = 0;
3332
3333         if (!section_name) {
3334             av_log(NULL, AV_LOG_ERROR,
3335                    "Missing section name for option '%s'\n", opt);
3336             return AVERROR(EINVAL);
3337         }
3338
3339         if (*p == '=') {
3340             p++;
3341             while (*p && *p != ':') {
3342                 char *entry = av_get_token(&p, ",:");
3343                 if (!entry)
3344                     break;
3345                 av_log(NULL, AV_LOG_VERBOSE,
3346                        "Adding '%s' to the entries to show in section '%s'\n",
3347                        entry, section_name);
3348                 av_dict_set(&entries, entry, "", AV_DICT_DONT_STRDUP_KEY);
3349                 if (*p == ',')
3350                     p++;
3351             }
3352         } else {
3353             show_all_entries = 1;
3354         }
3355
3356         ret = match_section(section_name, show_all_entries, entries);
3357         if (ret == 0) {
3358             av_log(NULL, AV_LOG_ERROR, "No match for section '%s'\n", section_name);
3359             ret = AVERROR(EINVAL);
3360         }
3361         av_dict_free(&entries);
3362         av_free(section_name);
3363
3364         if (ret <= 0)
3365             break;
3366         if (*p)
3367             p++;
3368     }
3369
3370     return ret;
3371 }
3372
3373 static int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
3374 {
3375     char *buf = av_asprintf("format=%s", arg);
3376     int ret;
3377
3378     if (!buf)
3379         return AVERROR(ENOMEM);
3380
3381     av_log(NULL, AV_LOG_WARNING,
3382            "Option '%s' is deprecated, use '-show_entries format=%s' instead\n",
3383            opt, arg);
3384     ret = opt_show_entries(optctx, opt, buf);
3385     av_free(buf);
3386     return ret;
3387 }
3388
3389 static void opt_input_file(void *optctx, const char *arg)
3390 {
3391     if (input_filename) {
3392         av_log(NULL, AV_LOG_ERROR,
3393                 "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3394                 arg, input_filename);
3395         exit_program(1);
3396     }
3397     if (!strcmp(arg, "-"))
3398         arg = "pipe:";
3399     input_filename = arg;
3400 }
3401
3402 static int opt_input_file_i(void *optctx, const char *opt, const char *arg)
3403 {
3404     opt_input_file(optctx, arg);
3405     return 0;
3406 }
3407
3408 static int opt_print_filename(void *optctx, const char *opt, const char *arg)
3409 {
3410     print_input_filename = arg;
3411     return 0;
3412 }
3413
3414 void show_help_default(const char *opt, const char *arg)
3415 {
3416     av_log_set_callback(log_callback_help);
3417     show_usage();
3418     show_help_options(options, "Main options:", 0, 0, 0);
3419     printf("\n");
3420
3421     show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3422     show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3423 }
3424
3425 /**
3426  * Parse interval specification, according to the format:
3427  * INTERVAL ::= [START|+START_OFFSET][%[END|+END_OFFSET]]
3428  * INTERVALS ::= INTERVAL[,INTERVALS]
3429 */
3430 static int parse_read_interval(const char *interval_spec,
3431                                ReadInterval *interval)
3432 {
3433     int ret = 0;
3434     char *next, *p, *spec = av_strdup(interval_spec);
3435     if (!spec)
3436         return AVERROR(ENOMEM);
3437
3438     if (!*spec) {
3439         av_log(NULL, AV_LOG_ERROR, "Invalid empty interval specification\n");
3440         ret = AVERROR(EINVAL);
3441         goto end;
3442     }
3443
3444     p = spec;
3445     next = strchr(spec, '%');
3446     if (next)
3447         *next++ = 0;
3448
3449     /* parse first part */
3450     if (*p) {
3451         interval->has_start = 1;
3452
3453         if (*p == '+') {
3454             interval->start_is_offset = 1;
3455             p++;
3456         } else {
3457             interval->start_is_offset = 0;
3458         }
3459
3460         ret = av_parse_time(&interval->start, p, 1);
3461         if (ret < 0) {
3462             av_log(NULL, AV_LOG_ERROR, "Invalid interval start specification '%s'\n", p);
3463             goto end;
3464         }
3465     } else {
3466         interval->has_start = 0;
3467     }
3468
3469     /* parse second part */
3470     p = next;
3471     if (p && *p) {
3472         int64_t us;
3473         interval->has_end = 1;
3474
3475         if (*p == '+') {
3476             interval->end_is_offset = 1;
3477             p++;
3478         } else {
3479             interval->end_is_offset = 0;
3480         }
3481
3482         if (interval->end_is_offset && *p == '#') {
3483             long long int lli;
3484             char *tail;
3485             interval->duration_frames = 1;
3486             p++;
3487             lli = strtoll(p, &tail, 10);
3488             if (*tail || lli < 0) {
3489                 av_log(NULL, AV_LOG_ERROR,
3490                        "Invalid or negative value '%s' for duration number of frames\n", p);
3491                 goto end;
3492             }
3493             interval->end = lli;
3494         } else {
3495             interval->duration_frames = 0;
3496             ret = av_parse_time(&us, p, 1);
3497             if (ret < 0) {
3498                 av_log(NULL, AV_LOG_ERROR, "Invalid interval end/duration specification '%s'\n", p);
3499                 goto end;
3500             }
3501             interval->end = us;
3502         }
3503     } else {
3504         interval->has_end = 0;
3505     }
3506
3507 end:
3508     av_free(spec);
3509     return ret;
3510 }
3511
3512 static int parse_read_intervals(const char *intervals_spec)
3513 {
3514     int ret, n, i;
3515     char *p, *spec = av_strdup(intervals_spec);
3516     if (!spec)
3517         return AVERROR(ENOMEM);
3518
3519     /* preparse specification, get number of intervals */
3520     for (n = 0, p = spec; *p; p++)
3521         if (*p == ',')
3522             n++;
3523     n++;
3524
3525     read_intervals = av_malloc_array(n, sizeof(*read_intervals));
3526     if (!read_intervals) {
3527         ret = AVERROR(ENOMEM);
3528         goto end;
3529     }
3530     read_intervals_nb = n;
3531
3532     /* parse intervals */
3533     p = spec;
3534     for (i = 0; p; i++) {
3535         char *next;
3536
3537         av_assert0(i < read_intervals_nb);
3538         next = strchr(p, ',');
3539         if (next)
3540             *next++ = 0;
3541
3542         read_intervals[i].id = i;
3543         ret = parse_read_interval(p, &read_intervals[i]);
3544         if (ret < 0) {
3545             av_log(NULL, AV_LOG_ERROR, "Error parsing read interval #%d '%s'\n",
3546                    i, p);
3547             goto end;
3548         }
3549         av_log(NULL, AV_LOG_VERBOSE, "Parsed log interval ");
3550         log_read_interval(&read_intervals[i], NULL, AV_LOG_VERBOSE);
3551         p = next;
3552     }
3553     av_assert0(i == read_intervals_nb);
3554
3555 end:
3556     av_free(spec);
3557     return ret;
3558 }
3559
3560 static int opt_read_intervals(void *optctx, const char *opt, const char *arg)
3561 {
3562     return parse_read_intervals(arg);
3563 }
3564
3565 static int opt_pretty(void *optctx, const char *opt, const char *arg)
3566 {
3567     show_value_unit              = 1;
3568     use_value_prefix             = 1;
3569     use_byte_value_binary_prefix = 1;
3570     use_value_sexagesimal_format = 1;
3571     return 0;
3572 }
3573
3574 static void print_section(SectionID id, int level)
3575 {
3576     const SectionID *pid;
3577     const struct section *section = &sections[id];
3578     printf("%c%c%c",
3579            section->flags & SECTION_FLAG_IS_WRAPPER           ? 'W' : '.',
3580            section->flags & SECTION_FLAG_IS_ARRAY             ? 'A' : '.',
3581            section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS  ? 'V' : '.');
3582     printf("%*c  %s", level * 4, ' ', section->name);
3583     if (section->unique_name)
3584         printf("/%s", section->unique_name);
3585     printf("\n");
3586
3587     for (pid = section->children_ids; *pid != -1; pid++)
3588         print_section(*pid, level+1);
3589 }
3590
3591 static int opt_sections(void *optctx, const char *opt, const char *arg)
3592 {
3593     printf("Sections:\n"
3594            "W.. = Section is a wrapper (contains other sections, no local entries)\n"
3595            ".A. = Section contains an array of elements of the same type\n"
3596            "..V = Section may contain a variable number of fields with variable keys\n"
3597            "FLAGS NAME/UNIQUE_NAME\n"
3598            "---\n");
3599     print_section(SECTION_ID_ROOT, 0);
3600     return 0;
3601 }
3602
3603 static int opt_show_versions(void *optctx, const char *opt, const char *arg)
3604 {
3605     mark_section_show_entries(SECTION_ID_PROGRAM_VERSION, 1, NULL);
3606     mark_section_show_entries(SECTION_ID_LIBRARY_VERSION, 1, NULL);
3607     return 0;
3608 }
3609
3610 #define DEFINE_OPT_SHOW_SECTION(section, target_section_id)             \
3611     static int opt_show_##section(void *optctx, const char *opt, const char *arg) \
3612     {                                                                   \
3613         mark_section_show_entries(SECTION_ID_##target_section_id, 1, NULL); \
3614         return 0;                                                       \
3615     }
3616
3617 DEFINE_OPT_SHOW_SECTION(chapters,         CHAPTERS)
3618 DEFINE_OPT_SHOW_SECTION(error,            ERROR)
3619 DEFINE_OPT_SHOW_SECTION(format,           FORMAT)
3620 DEFINE_OPT_SHOW_SECTION(frames,           FRAMES)
3621 DEFINE_OPT_SHOW_SECTION(library_versions, LIBRARY_VERSIONS)
3622 DEFINE_OPT_SHOW_SECTION(packets,          PACKETS)
3623 DEFINE_OPT_SHOW_SECTION(pixel_formats,    PIXEL_FORMATS)
3624 DEFINE_OPT_SHOW_SECTION(program_version,  PROGRAM_VERSION)
3625 DEFINE_OPT_SHOW_SECTION(streams,          STREAMS)
3626 DEFINE_OPT_SHOW_SECTION(programs,         PROGRAMS)
3627
3628 static const OptionDef real_options[] = {
3629     CMDUTILS_COMMON_OPTIONS
3630     { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "format" },
3631     { "unit", OPT_BOOL, {&show_value_unit}, "show unit of the displayed values" },
3632     { "prefix", OPT_BOOL, {&use_value_prefix}, "use SI prefixes for the displayed values" },
3633     { "byte_binary_prefix", OPT_BOOL, {&use_byte_value_binary_prefix},
3634       "use binary prefixes for byte units" },
3635     { "sexagesimal", OPT_BOOL,  {&use_value_sexagesimal_format},
3636       "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
3637     { "pretty", 0, {.func_arg = opt_pretty},
3638       "prettify the format of displayed values, make it more human readable" },
3639     { "print_format", OPT_STRING | HAS_ARG, { &print_format },
3640       "set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml)", "format" },
3641     { "of", OPT_STRING | HAS_ARG, { &print_format }, "alias for -print_format", "format" },
3642     { "select_streams", OPT_STRING | HAS_ARG, { &stream_specifier }, "select the specified streams", "stream_specifier" },
3643     { "sections", OPT_EXIT, {.func_arg = opt_sections}, "print sections structure and section information, and exit" },
3644     { "show_data",    OPT_BOOL, { &do_show_data }, "show packets data" },
3645     { "show_data_hash", OPT_STRING | HAS_ARG, { &show_data_hash }, "show packets data hash" },
3646     { "show_error",   0, { .func_arg = &opt_show_error },  "show probing error" },
3647     { "show_format",  0, { .func_arg = &opt_show_format }, "show format/container info" },
3648     { "show_frames",  0, { .func_arg = &opt_show_frames }, "show frames info" },
3649     { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry},
3650       "show a particular entry from the format/container info", "entry" },
3651     { "show_entries", HAS_ARG, {.func_arg = opt_show_entries},
3652       "show a set of specified entries", "entry_list" },
3653 #if HAVE_THREADS
3654     { "show_log", OPT_INT|HAS_ARG, { &do_show_log }, "show log" },
3655 #endif
3656     { "show_packets", 0, { .func_arg = &opt_show_packets }, "show packets info" },
3657     { "show_programs", 0, { .func_arg = &opt_show_programs }, "show programs info" },
3658     { "show_streams", 0, { .func_arg = &opt_show_streams }, "show streams info" },
3659     { "show_chapters", 0, { .func_arg = &opt_show_chapters }, "show chapters info" },
3660     { "count_frames", OPT_BOOL, { &do_count_frames }, "count the number of frames per stream" },
3661     { "count_packets", OPT_BOOL, { &do_count_packets }, "count the number of packets per stream" },
3662     { "show_program_version",  0, { .func_arg = &opt_show_program_version },  "show ffprobe version" },
3663     { "show_library_versions", 0, { .func_arg = &opt_show_library_versions }, "show library versions" },
3664     { "show_versions",         0, { .func_arg = &opt_show_versions }, "show program and library versions" },
3665     { "show_pixel_formats", 0, { .func_arg = &opt_show_pixel_formats }, "show pixel format descriptions" },
3666     { "show_private_data", OPT_BOOL, { &show_private_data }, "show private data" },
3667     { "private",           OPT_BOOL, { &show_private_data }, "same as show_private_data" },
3668     { "bitexact", OPT_BOOL, {&do_bitexact}, "force bitexact output" },
3669     { "read_intervals", HAS_ARG, {.func_arg = opt_read_intervals}, "set read intervals", "read_intervals" },
3670     { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, "generic catch all option", "" },
3671     { "i", HAS_ARG, {.func_arg = opt_input_file_i}, "read specified file", "input_file"},
3672     { "print_filename", HAS_ARG, {.func_arg = opt_print_filename}, "override the printed input filename", "print_file"},
3673     { "find_stream_info", OPT_BOOL | OPT_INPUT | OPT_EXPERT, { &find_stream_info },
3674         "read and decode the streams to fill missing information with heuristics" },
3675     { NULL, },
3676 };
3677
3678 static inline int check_section_show_entries(int section_id)
3679 {
3680     int *id;
3681     struct section *section = &sections[section_id];
3682     if (sections[section_id].show_all_entries || sections[section_id].entries_to_show)
3683         return 1;
3684     for (id = section->children_ids; *id != -1; id++)
3685         if (check_section_show_entries(*id))
3686             return 1;
3687     return 0;
3688 }
3689
3690 #define SET_DO_SHOW(id, varname) do {                                   \
3691         if (check_section_show_entries(SECTION_ID_##id))                \
3692             do_show_##varname = 1;                                      \
3693     } while (0)
3694
3695 int main(int argc, char **argv)
3696 {
3697     const Writer *w;
3698     WriterContext *wctx;
3699     char *buf;
3700     char *w_name = NULL, *w_args = NULL;
3701     int ret, i;
3702
3703     init_dynload();
3704
3705 #if HAVE_THREADS
3706     ret = pthread_mutex_init(&log_mutex, NULL);
3707     if (ret != 0) {
3708         goto end;
3709     }
3710 #endif
3711     av_log_set_flags(AV_LOG_SKIP_REPEATED);
3712     register_exit(ffprobe_cleanup);
3713
3714     options = real_options;
3715     parse_loglevel(argc, argv, options);
3716     avformat_network_init();
3717     init_opts();
3718 #if CONFIG_AVDEVICE
3719     avdevice_register_all();
3720 #endif
3721
3722     show_banner(argc, argv, options);
3723     parse_options(NULL, argc, argv, options, opt_input_file);
3724
3725     if (do_show_log)
3726         av_log_set_callback(log_callback);
3727
3728     /* mark things to show, based on -show_entries */
3729     SET_DO_SHOW(CHAPTERS, chapters);
3730     SET_DO_SHOW(ERROR, error);
3731     SET_DO_SHOW(FORMAT, format);
3732     SET_DO_SHOW(FRAMES, frames);
3733     SET_DO_SHOW(LIBRARY_VERSIONS, library_versions);
3734     SET_DO_SHOW(PACKETS, packets);
3735     SET_DO_SHOW(PIXEL_FORMATS, pixel_formats);
3736     SET_DO_SHOW(PIXEL_FORMAT_FLAGS, pixel_format_flags);
3737     SET_DO_SHOW(PIXEL_FORMAT_COMPONENTS, pixel_format_components);
3738     SET_DO_SHOW(PROGRAM_VERSION, program_version);
3739     SET_DO_SHOW(PROGRAMS, programs);
3740     SET_DO_SHOW(STREAMS, streams);
3741     SET_DO_SHOW(STREAM_DISPOSITION, stream_disposition);
3742     SET_DO_SHOW(PROGRAM_STREAM_DISPOSITION, stream_disposition);
3743
3744     SET_DO_SHOW(CHAPTER_TAGS, chapter_tags);
3745     SET_DO_SHOW(FORMAT_TAGS, format_tags);
3746     SET_DO_SHOW(FRAME_TAGS, frame_tags);
3747     SET_DO_SHOW(PROGRAM_TAGS, program_tags);
3748     SET_DO_SHOW(STREAM_TAGS, stream_tags);
3749     SET_DO_SHOW(PROGRAM_STREAM_TAGS, stream_tags);
3750     SET_DO_SHOW(PACKET_TAGS, packet_tags);
3751
3752     if (do_bitexact && (do_show_program_version || do_show_library_versions)) {
3753         av_log(NULL, AV_LOG_ERROR,
3754                "-bitexact and -show_program_version or -show_library_versions "
3755                "options are incompatible\n");
3756         ret = AVERROR(EINVAL);
3757         goto end;
3758     }
3759
3760     writer_register_all();
3761
3762     if (!print_format)
3763         print_format = av_strdup("default");
3764     if (!print_format) {
3765         ret = AVERROR(ENOMEM);
3766         goto end;
3767     }
3768     w_name = av_strtok(print_format, "=", &buf);
3769     if (!w_name) {
3770         av_log(NULL, AV_LOG_ERROR,
3771                "No name specified for the output format\n");
3772         ret = AVERROR(EINVAL);
3773         goto end;
3774     }
3775     w_args = buf;
3776
3777     if (show_data_hash) {
3778         if ((ret = av_hash_alloc(&hash, show_data_hash)) < 0) {
3779             if (ret == AVERROR(EINVAL)) {
3780                 const char *n;
3781                 av_log(NULL, AV_LOG_ERROR,
3782                        "Unknown hash algorithm '%s'\nKnown algorithms:",
3783                        show_data_hash);
3784                 for (i = 0; (n = av_hash_names(i)); i++)
3785                     av_log(NULL, AV_LOG_ERROR, " %s", n);
3786                 av_log(NULL, AV_LOG_ERROR, "\n");
3787             }
3788             goto end;
3789         }
3790     }
3791
3792     w = writer_get_by_name(w_name);
3793     if (!w) {
3794         av_log(NULL, AV_LOG_ERROR, "Unknown output format with name '%s'\n", w_name);
3795         ret = AVERROR(EINVAL);
3796         goto end;
3797     }
3798
3799     if ((ret = writer_open(&wctx, w, w_args,
3800                            sections, FF_ARRAY_ELEMS(sections))) >= 0) {
3801         if (w == &xml_writer)
3802             wctx->string_validation_utf8_flags |= AV_UTF8_FLAG_EXCLUDE_XML_INVALID_CONTROL_CODES;
3803
3804         writer_print_section_header(wctx, SECTION_ID_ROOT);
3805
3806         if (do_show_program_version)
3807             ffprobe_show_program_version(wctx);
3808         if (do_show_library_versions)
3809             ffprobe_show_library_versions(wctx);
3810         if (do_show_pixel_formats)
3811             ffprobe_show_pixel_formats(wctx);
3812
3813         if (!input_filename &&
3814             ((do_show_format || do_show_programs || do_show_streams || do_show_chapters || do_show_packets || do_show_error) ||
3815              (!do_show_program_version && !do_show_library_versions && !do_show_pixel_formats))) {
3816             show_usage();
3817             av_log(NULL, AV_LOG_ERROR, "You have to specify one input file.\n");
3818             av_log(NULL, AV_LOG_ERROR, "Use -h to get full help or, even better, run 'man %s'.\n", program_name);
3819             ret = AVERROR(EINVAL);
3820         } else if (input_filename) {
3821             ret = probe_file(wctx, input_filename, print_input_filename);
3822             if (ret < 0 && do_show_error)
3823                 show_error(wctx, ret);
3824         }
3825
3826         writer_print_section_footer(wctx);
3827         writer_close(&wctx);
3828     }
3829
3830 end:
3831     av_freep(&print_format);
3832     av_freep(&read_intervals);
3833     av_hash_freep(&hash);
3834
3835     uninit_opts();
3836     for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
3837         av_dict_free(&(sections[i].entries_to_show));
3838
3839     avformat_network_deinit();
3840
3841     return ret < 0;
3842 }