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 #define XML_INDENT() printf("%*c", xml->indent_level * 4, ' ')
1676
1677 static void xml_print_section_header(WriterContext *wctx)
1678 {
1679     XMLContext *xml = wctx->priv;
1680     const struct section *section = wctx->section[wctx->level];
1681     const struct section *parent_section = wctx->level ?
1682         wctx->section[wctx->level-1] : NULL;
1683
1684     if (wctx->level == 0) {
1685         const char *qual = " xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' "
1686             "xmlns:ffprobe='http://www.ffmpeg.org/schema/ffprobe' "
1687             "xsi:schemaLocation='http://www.ffmpeg.org/schema/ffprobe ffprobe.xsd'";
1688
1689         printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
1690         printf("<%sffprobe%s>\n",
1691                xml->fully_qualified ? "ffprobe:" : "",
1692                xml->fully_qualified ? qual : "");
1693         return;
1694     }
1695
1696     if (xml->within_tag) {
1697         xml->within_tag = 0;
1698         printf(">\n");
1699     }
1700     if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1701         xml->indent_level++;
1702     } else {
1703         if (parent_section && (parent_section->flags & SECTION_FLAG_IS_WRAPPER) &&
1704             wctx->level && wctx->nb_item[wctx->level-1])
1705             printf("\n");
1706         xml->indent_level++;
1707
1708         if (section->flags & SECTION_FLAG_IS_ARRAY) {
1709             XML_INDENT(); printf("<%s>\n", section->name);
1710         } else {
1711             XML_INDENT(); printf("<%s ", section->name);
1712             xml->within_tag = 1;
1713         }
1714     }
1715 }
1716
1717 static void xml_print_section_footer(WriterContext *wctx)
1718 {
1719     XMLContext *xml = wctx->priv;
1720     const struct section *section = wctx->section[wctx->level];
1721
1722     if (wctx->level == 0) {
1723         printf("</%sffprobe>\n", xml->fully_qualified ? "ffprobe:" : "");
1724     } else if (xml->within_tag) {
1725         xml->within_tag = 0;
1726         printf("/>\n");
1727         xml->indent_level--;
1728     } else if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1729         xml->indent_level--;
1730     } else {
1731         XML_INDENT(); printf("</%s>\n", section->name);
1732         xml->indent_level--;
1733     }
1734 }
1735
1736 static void xml_print_str(WriterContext *wctx, const char *key, const char *value)
1737 {
1738     AVBPrint buf;
1739     XMLContext *xml = wctx->priv;
1740     const struct section *section = wctx->section[wctx->level];
1741
1742     av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1743
1744     if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1745         XML_INDENT();
1746         av_bprint_escape(&buf, key, NULL,
1747                          AV_ESCAPE_MODE_XML, AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES);
1748         printf("<%s key=\"%s\"",
1749                section->element_name, buf.str);
1750         av_bprint_clear(&buf);
1751
1752         av_bprint_escape(&buf, value, NULL,
1753                          AV_ESCAPE_MODE_XML, AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES);
1754         printf(" value=\"%s\"/>\n", buf.str);
1755     } else {
1756         if (wctx->nb_item[wctx->level])
1757             printf(" ");
1758
1759         av_bprint_escape(&buf, value, NULL,
1760                          AV_ESCAPE_MODE_XML, AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES);
1761         printf("%s=\"%s\"", key, buf.str);
1762     }
1763
1764     av_bprint_finalize(&buf, NULL);
1765 }
1766
1767 static void xml_print_int(WriterContext *wctx, const char *key, long long int value)
1768 {
1769     if (wctx->nb_item[wctx->level])
1770         printf(" ");
1771     printf("%s=\"%lld\"", key, value);
1772 }
1773
1774 static Writer xml_writer = {
1775     .name                 = "xml",
1776     .priv_size            = sizeof(XMLContext),
1777     .init                 = xml_init,
1778     .print_section_header = xml_print_section_header,
1779     .print_section_footer = xml_print_section_footer,
1780     .print_integer        = xml_print_int,
1781     .print_string         = xml_print_str,
1782     .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1783     .priv_class           = &xml_class,
1784 };
1785
1786 static void writer_register_all(void)
1787 {
1788     static int initialized;
1789
1790     if (initialized)
1791         return;
1792     initialized = 1;
1793
1794     writer_register(&default_writer);
1795     writer_register(&compact_writer);
1796     writer_register(&csv_writer);
1797     writer_register(&flat_writer);
1798     writer_register(&ini_writer);
1799     writer_register(&json_writer);
1800     writer_register(&xml_writer);
1801 }
1802
1803 #define print_fmt(k, f, ...) do {              \
1804     av_bprint_clear(&pbuf);                    \
1805     av_bprintf(&pbuf, f, __VA_ARGS__);         \
1806     writer_print_string(w, k, pbuf.str, 0);    \
1807 } while (0)
1808
1809 #define print_int(k, v)         writer_print_integer(w, k, v)
1810 #define print_q(k, v, s)        writer_print_rational(w, k, v, s)
1811 #define print_str(k, v)         writer_print_string(w, k, v, 0)
1812 #define print_str_opt(k, v)     writer_print_string(w, k, v, PRINT_STRING_OPT)
1813 #define print_str_validate(k, v) writer_print_string(w, k, v, PRINT_STRING_VALIDATE)
1814 #define print_time(k, v, tb)    writer_print_time(w, k, v, tb, 0)
1815 #define print_ts(k, v)          writer_print_ts(w, k, v, 0)
1816 #define print_duration_time(k, v, tb) writer_print_time(w, k, v, tb, 1)
1817 #define print_duration_ts(k, v)       writer_print_ts(w, k, v, 1)
1818 #define print_val(k, v, u) do {                                     \
1819     struct unit_value uv;                                           \
1820     uv.val.i = v;                                                   \
1821     uv.unit = u;                                                    \
1822     writer_print_string(w, k, value_string(val_str, sizeof(val_str), uv), 0); \
1823 } while (0)
1824
1825 #define print_section_header(s) writer_print_section_header(w, s)
1826 #define print_section_footer(s) writer_print_section_footer(w, s)
1827
1828 #define REALLOCZ_ARRAY_STREAM(ptr, cur_n, new_n)                        \
1829 {                                                                       \
1830     ret = av_reallocp_array(&(ptr), (new_n), sizeof(*(ptr)));           \
1831     if (ret < 0)                                                        \
1832         goto end;                                                       \
1833     memset( (ptr) + (cur_n), 0, ((new_n) - (cur_n)) * sizeof(*(ptr)) ); \
1834 }
1835
1836 static inline int show_tags(WriterContext *w, AVDictionary *tags, int section_id)
1837 {
1838     AVDictionaryEntry *tag = NULL;
1839     int ret = 0;
1840
1841     if (!tags)
1842         return 0;
1843     writer_print_section_header(w, section_id);
1844
1845     while ((tag = av_dict_get(tags, "", tag, AV_DICT_IGNORE_SUFFIX))) {
1846         if ((ret = print_str_validate(tag->key, tag->value)) < 0)
1847             break;
1848     }
1849     writer_print_section_footer(w);
1850
1851     return ret;
1852 }
1853
1854 static void print_dynamic_hdr10_plus(WriterContext *w, const AVDynamicHDRPlus *metadata)
1855 {
1856     if (!metadata)
1857         return;
1858     print_int("application version", metadata->application_version);
1859     print_int("num_windows", metadata->num_windows);
1860     for (int n = 1; n < metadata->num_windows; n++) {
1861         const AVHDRPlusColorTransformParams *params = &metadata->params[n];
1862         print_q("window_upper_left_corner_x",
1863                 params->window_upper_left_corner_x,'/');
1864         print_q("window_upper_left_corner_y",
1865                 params->window_upper_left_corner_y,'/');
1866         print_q("window_lower_right_corner_x",
1867                 params->window_lower_right_corner_x,'/');
1868         print_q("window_lower_right_corner_y",
1869                 params->window_lower_right_corner_y,'/');
1870         print_q("window_upper_left_corner_x",
1871                 params->window_upper_left_corner_x,'/');
1872         print_q("window_upper_left_corner_y",
1873                 params->window_upper_left_corner_y,'/');
1874         print_int("center_of_ellipse_x",
1875                   params->center_of_ellipse_x ) ;
1876         print_int("center_of_ellipse_y",
1877                   params->center_of_ellipse_y );
1878         print_int("rotation_angle",
1879                   params->rotation_angle);
1880         print_int("semimajor_axis_internal_ellipse",
1881                   params->semimajor_axis_internal_ellipse);
1882         print_int("semimajor_axis_external_ellipse",
1883                   params->semimajor_axis_external_ellipse);
1884         print_int("semiminor_axis_external_ellipse",
1885                   params->semiminor_axis_external_ellipse);
1886         print_int("overlap_process_option",
1887                   params->overlap_process_option);
1888     }
1889     print_q("targeted_system_display_maximum_luminance",
1890             metadata->targeted_system_display_maximum_luminance,'/');
1891     if (metadata->targeted_system_display_actual_peak_luminance_flag) {
1892         print_int("num_rows_targeted_system_display_actual_peak_luminance",
1893                   metadata->num_rows_targeted_system_display_actual_peak_luminance);
1894         print_int("num_cols_targeted_system_display_actual_peak_luminance",
1895                   metadata->num_cols_targeted_system_display_actual_peak_luminance);
1896         for (int i = 0; i < metadata->num_rows_targeted_system_display_actual_peak_luminance; i++) {
1897             for (int j = 0; j < metadata->num_cols_targeted_system_display_actual_peak_luminance; j++) {
1898                 print_q("targeted_system_display_actual_peak_luminance",
1899                         metadata->targeted_system_display_actual_peak_luminance[i][j],'/');
1900             }
1901         }
1902     }
1903     for (int n = 0; n < metadata->num_windows; n++) {
1904         const AVHDRPlusColorTransformParams *params = &metadata->params[n];
1905         for (int i = 0; i < 3; i++) {
1906             print_q("maxscl",params->maxscl[i],'/');
1907         }
1908         print_q("average_maxrgb",
1909                 params->average_maxrgb,'/');
1910         print_int("num_distribution_maxrgb_percentiles",
1911                   params->num_distribution_maxrgb_percentiles);
1912         for (int i = 0; i < params->num_distribution_maxrgb_percentiles; i++) {
1913             print_int("distribution_maxrgb_percentage",
1914                       params->distribution_maxrgb[i].percentage);
1915             print_q("distribution_maxrgb_percentile",
1916                     params->distribution_maxrgb[i].percentile,'/');
1917         }
1918         print_q("fraction_bright_pixels",
1919                 params->fraction_bright_pixels,'/');
1920     }
1921     if (metadata->mastering_display_actual_peak_luminance_flag) {
1922         print_int("num_rows_mastering_display_actual_peak_luminance",
1923                   metadata->num_rows_mastering_display_actual_peak_luminance);
1924         print_int("num_cols_mastering_display_actual_peak_luminance",
1925                   metadata->num_cols_mastering_display_actual_peak_luminance);
1926         for (int i = 0; i < metadata->num_rows_mastering_display_actual_peak_luminance; i++) {
1927             for (int j = 0; j <  metadata->num_cols_mastering_display_actual_peak_luminance; j++) {
1928                 print_q("mastering_display_actual_peak_luminance",
1929                         metadata->mastering_display_actual_peak_luminance[i][j],'/');
1930             }
1931         }
1932     }
1933
1934     for (int n = 0; n < metadata->num_windows; n++) {
1935         const AVHDRPlusColorTransformParams *params = &metadata->params[n];
1936         if (params->tone_mapping_flag) {
1937             print_q("knee_point_x", params->knee_point_x,'/');
1938             print_q("knee_point_y", params->knee_point_y,'/');
1939             print_int("num_bezier_curve_anchors",
1940                       params->num_bezier_curve_anchors );
1941             for (int i = 0; i < params->num_bezier_curve_anchors; i++) {
1942                 print_q("bezier_curve_anchors",
1943                         params->bezier_curve_anchors[i],'/');
1944             }
1945         }
1946         if (params->color_saturation_mapping_flag) {
1947             print_q("color_saturation_weight",
1948                     params->color_saturation_weight,'/');
1949         }
1950     }
1951 }
1952
1953 static void print_pkt_side_data(WriterContext *w,
1954                                 AVCodecParameters *par,
1955                                 const AVPacketSideData *side_data,
1956                                 int nb_side_data,
1957                                 SectionID id_data_list,
1958                                 SectionID id_data)
1959 {
1960     int i;
1961
1962     writer_print_section_header(w, id_data_list);
1963     for (i = 0; i < nb_side_data; i++) {
1964         const AVPacketSideData *sd = &side_data[i];
1965         const char *name = av_packet_side_data_name(sd->type);
1966
1967         writer_print_section_header(w, id_data);
1968         print_str("side_data_type", name ? name : "unknown");
1969         if (sd->type == AV_PKT_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
1970             writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
1971             print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
1972         } else if (sd->type == AV_PKT_DATA_STEREO3D) {
1973             const AVStereo3D *stereo = (AVStereo3D *)sd->data;
1974             print_str("type", av_stereo3d_type_name(stereo->type));
1975             print_int("inverted", !!(stereo->flags & AV_STEREO3D_FLAG_INVERT));
1976         } else if (sd->type == AV_PKT_DATA_SPHERICAL) {
1977             const AVSphericalMapping *spherical = (AVSphericalMapping *)sd->data;
1978             print_str("projection", av_spherical_projection_name(spherical->projection));
1979             if (spherical->projection == AV_SPHERICAL_CUBEMAP) {
1980                 print_int("padding", spherical->padding);
1981             } else if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE) {
1982                 size_t l, t, r, b;
1983                 av_spherical_tile_bounds(spherical, par->width, par->height,
1984                                          &l, &t, &r, &b);
1985                 print_int("bound_left", l);
1986                 print_int("bound_top", t);
1987                 print_int("bound_right", r);
1988                 print_int("bound_bottom", b);
1989             }
1990
1991             print_int("yaw", (double) spherical->yaw / (1 << 16));
1992             print_int("pitch", (double) spherical->pitch / (1 << 16));
1993             print_int("roll", (double) spherical->roll / (1 << 16));
1994         } else if (sd->type == AV_PKT_DATA_SKIP_SAMPLES && sd->size == 10) {
1995             print_int("skip_samples",    AV_RL32(sd->data));
1996             print_int("discard_padding", AV_RL32(sd->data + 4));
1997             print_int("skip_reason",     AV_RL8(sd->data + 8));
1998             print_int("discard_reason",  AV_RL8(sd->data + 9));
1999         } else if (sd->type == AV_PKT_DATA_MASTERING_DISPLAY_METADATA) {
2000             AVMasteringDisplayMetadata *metadata = (AVMasteringDisplayMetadata *)sd->data;
2001
2002             if (metadata->has_primaries) {
2003                 print_q("red_x", metadata->display_primaries[0][0], '/');
2004                 print_q("red_y", metadata->display_primaries[0][1], '/');
2005                 print_q("green_x", metadata->display_primaries[1][0], '/');
2006                 print_q("green_y", metadata->display_primaries[1][1], '/');
2007                 print_q("blue_x", metadata->display_primaries[2][0], '/');
2008                 print_q("blue_y", metadata->display_primaries[2][1], '/');
2009
2010                 print_q("white_point_x", metadata->white_point[0], '/');
2011                 print_q("white_point_y", metadata->white_point[1], '/');
2012             }
2013
2014             if (metadata->has_luminance) {
2015                 print_q("min_luminance", metadata->min_luminance, '/');
2016                 print_q("max_luminance", metadata->max_luminance, '/');
2017             }
2018         } else if (sd->type == AV_PKT_DATA_CONTENT_LIGHT_LEVEL) {
2019             AVContentLightMetadata *metadata = (AVContentLightMetadata *)sd->data;
2020             print_int("max_content", metadata->MaxCLL);
2021             print_int("max_average", metadata->MaxFALL);
2022         } else if (sd->type == AV_PKT_DATA_DOVI_CONF) {
2023             AVDOVIDecoderConfigurationRecord *dovi = (AVDOVIDecoderConfigurationRecord *)sd->data;
2024             print_int("dv_version_major", dovi->dv_version_major);
2025             print_int("dv_version_minor", dovi->dv_version_minor);
2026             print_int("dv_profile", dovi->dv_profile);
2027             print_int("dv_level", dovi->dv_level);
2028             print_int("rpu_present_flag", dovi->rpu_present_flag);
2029             print_int("el_present_flag", dovi->el_present_flag);
2030             print_int("bl_present_flag", dovi->bl_present_flag);
2031             print_int("dv_bl_signal_compatibility_id", dovi->dv_bl_signal_compatibility_id);
2032         }
2033         writer_print_section_footer(w);
2034     }
2035     writer_print_section_footer(w);
2036 }
2037
2038 static void print_color_range(WriterContext *w, enum AVColorRange color_range)
2039 {
2040     const char *val = av_color_range_name(color_range);
2041     if (!val || color_range == AVCOL_RANGE_UNSPECIFIED) {
2042         print_str_opt("color_range", "unknown");
2043     } else {
2044         print_str("color_range", val);
2045     }
2046 }
2047
2048 static void print_color_space(WriterContext *w, enum AVColorSpace color_space)
2049 {
2050     const char *val = av_color_space_name(color_space);
2051     if (!val || color_space == AVCOL_SPC_UNSPECIFIED) {
2052         print_str_opt("color_space", "unknown");
2053     } else {
2054         print_str("color_space", val);
2055     }
2056 }
2057
2058 static void print_primaries(WriterContext *w, enum AVColorPrimaries color_primaries)
2059 {
2060     const char *val = av_color_primaries_name(color_primaries);
2061     if (!val || color_primaries == AVCOL_PRI_UNSPECIFIED) {
2062         print_str_opt("color_primaries", "unknown");
2063     } else {
2064         print_str("color_primaries", val);
2065     }
2066 }
2067
2068 static void print_color_trc(WriterContext *w, enum AVColorTransferCharacteristic color_trc)
2069 {
2070     const char *val = av_color_transfer_name(color_trc);
2071     if (!val || color_trc == AVCOL_TRC_UNSPECIFIED) {
2072         print_str_opt("color_transfer", "unknown");
2073     } else {
2074         print_str("color_transfer", val);
2075     }
2076 }
2077
2078 static void print_chroma_location(WriterContext *w, enum AVChromaLocation chroma_location)
2079 {
2080     const char *val = av_chroma_location_name(chroma_location);
2081     if (!val || chroma_location == AVCHROMA_LOC_UNSPECIFIED) {
2082         print_str_opt("chroma_location", "unspecified");
2083     } else {
2084         print_str("chroma_location", val);
2085     }
2086 }
2087
2088
2089 static void clear_log(int need_lock)
2090 {
2091     int i;
2092
2093     if (need_lock)
2094         pthread_mutex_lock(&log_mutex);
2095     for (i=0; i<log_buffer_size; i++) {
2096         av_freep(&log_buffer[i].context_name);
2097         av_freep(&log_buffer[i].parent_name);
2098         av_freep(&log_buffer[i].log_message);
2099     }
2100     log_buffer_size = 0;
2101     if(need_lock)
2102         pthread_mutex_unlock(&log_mutex);
2103 }
2104
2105 static int show_log(WriterContext *w, int section_ids, int section_id, int log_level)
2106 {
2107     int i;
2108     pthread_mutex_lock(&log_mutex);
2109     if (!log_buffer_size) {
2110         pthread_mutex_unlock(&log_mutex);
2111         return 0;
2112     }
2113     writer_print_section_header(w, section_ids);
2114
2115     for (i=0; i<log_buffer_size; i++) {
2116         if (log_buffer[i].log_level <= log_level) {
2117             writer_print_section_header(w, section_id);
2118             print_str("context", log_buffer[i].context_name);
2119             print_int("level", log_buffer[i].log_level);
2120             print_int("category", log_buffer[i].category);
2121             if (log_buffer[i].parent_name) {
2122                 print_str("parent_context", log_buffer[i].parent_name);
2123                 print_int("parent_category", log_buffer[i].parent_category);
2124             } else {
2125                 print_str_opt("parent_context", "N/A");
2126                 print_str_opt("parent_category", "N/A");
2127             }
2128             print_str("message", log_buffer[i].log_message);
2129             writer_print_section_footer(w);
2130         }
2131     }
2132     clear_log(0);
2133     pthread_mutex_unlock(&log_mutex);
2134
2135     writer_print_section_footer(w);
2136
2137     return 0;
2138 }
2139
2140 static void show_packet(WriterContext *w, InputFile *ifile, AVPacket *pkt, int packet_idx)
2141 {
2142     char val_str[128];
2143     AVStream *st = ifile->streams[pkt->stream_index].st;
2144     AVBPrint pbuf;
2145     const char *s;
2146
2147     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
2148
2149     writer_print_section_header(w, SECTION_ID_PACKET);
2150
2151     s = av_get_media_type_string(st->codecpar->codec_type);
2152     if (s) print_str    ("codec_type", s);
2153     else   print_str_opt("codec_type", "unknown");
2154     print_int("stream_index",     pkt->stream_index);
2155     print_ts  ("pts",             pkt->pts);
2156     print_time("pts_time",        pkt->pts, &st->time_base);
2157     print_ts  ("dts",             pkt->dts);
2158     print_time("dts_time",        pkt->dts, &st->time_base);
2159     print_duration_ts("duration",        pkt->duration);
2160     print_duration_time("duration_time", pkt->duration, &st->time_base);
2161     print_val("size",             pkt->size, unit_byte_str);
2162     if (pkt->pos != -1) print_fmt    ("pos", "%"PRId64, pkt->pos);
2163     else                print_str_opt("pos", "N/A");
2164     print_fmt("flags", "%c%c",      pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_',
2165               pkt->flags & AV_PKT_FLAG_DISCARD ? 'D' : '_');
2166
2167     if (pkt->side_data_elems) {
2168         int size;
2169         const uint8_t *side_metadata;
2170
2171         side_metadata = av_packet_get_side_data(pkt, AV_PKT_DATA_STRINGS_METADATA, &size);
2172         if (side_metadata && size && do_show_packet_tags) {
2173             AVDictionary *dict = NULL;
2174             if (av_packet_unpack_dictionary(side_metadata, size, &dict) >= 0)
2175                 show_tags(w, dict, SECTION_ID_PACKET_TAGS);
2176             av_dict_free(&dict);
2177         }
2178
2179         print_pkt_side_data(w, st->codecpar, pkt->side_data, pkt->side_data_elems,
2180                             SECTION_ID_PACKET_SIDE_DATA_LIST,
2181                             SECTION_ID_PACKET_SIDE_DATA);
2182     }
2183
2184     if (do_show_data)
2185         writer_print_data(w, "data", pkt->data, pkt->size);
2186     writer_print_data_hash(w, "data_hash", pkt->data, pkt->size);
2187     writer_print_section_footer(w);
2188
2189     av_bprint_finalize(&pbuf, NULL);
2190     fflush(stdout);
2191 }
2192
2193 static void show_subtitle(WriterContext *w, AVSubtitle *sub, AVStream *stream,
2194                           AVFormatContext *fmt_ctx)
2195 {
2196     AVBPrint pbuf;
2197
2198     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
2199
2200     writer_print_section_header(w, SECTION_ID_SUBTITLE);
2201
2202     print_str ("media_type",         "subtitle");
2203     print_ts  ("pts",                 sub->pts);
2204     print_time("pts_time",            sub->pts, &AV_TIME_BASE_Q);
2205     print_int ("format",              sub->format);
2206     print_int ("start_display_time",  sub->start_display_time);
2207     print_int ("end_display_time",    sub->end_display_time);
2208     print_int ("num_rects",           sub->num_rects);
2209
2210     writer_print_section_footer(w);
2211
2212     av_bprint_finalize(&pbuf, NULL);
2213     fflush(stdout);
2214 }
2215
2216 static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream,
2217                        AVFormatContext *fmt_ctx)
2218 {
2219     AVBPrint pbuf;
2220     char val_str[128];
2221     const char *s;
2222     int i;
2223
2224     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
2225
2226     writer_print_section_header(w, SECTION_ID_FRAME);
2227
2228     s = av_get_media_type_string(stream->codecpar->codec_type);
2229     if (s) print_str    ("media_type", s);
2230     else   print_str_opt("media_type", "unknown");
2231     print_int("stream_index",           stream->index);
2232     print_int("key_frame",              frame->key_frame);
2233     print_ts  ("pkt_pts",               frame->pts);
2234     print_time("pkt_pts_time",          frame->pts, &stream->time_base);
2235     print_ts  ("pkt_dts",               frame->pkt_dts);
2236     print_time("pkt_dts_time",          frame->pkt_dts, &stream->time_base);
2237     print_ts  ("best_effort_timestamp", frame->best_effort_timestamp);
2238     print_time("best_effort_timestamp_time", frame->best_effort_timestamp, &stream->time_base);
2239     print_duration_ts  ("pkt_duration",      frame->pkt_duration);
2240     print_duration_time("pkt_duration_time", frame->pkt_duration, &stream->time_base);
2241     if (frame->pkt_pos != -1) print_fmt    ("pkt_pos", "%"PRId64, frame->pkt_pos);
2242     else                      print_str_opt("pkt_pos", "N/A");
2243     if (frame->pkt_size != -1) print_val    ("pkt_size", frame->pkt_size, unit_byte_str);
2244     else                       print_str_opt("pkt_size", "N/A");
2245
2246     switch (stream->codecpar->codec_type) {
2247         AVRational sar;
2248
2249     case AVMEDIA_TYPE_VIDEO:
2250         print_int("width",                  frame->width);
2251         print_int("height",                 frame->height);
2252         s = av_get_pix_fmt_name(frame->format);
2253         if (s) print_str    ("pix_fmt", s);
2254         else   print_str_opt("pix_fmt", "unknown");
2255         sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, frame);
2256         if (sar.num) {
2257             print_q("sample_aspect_ratio", sar, ':');
2258         } else {
2259             print_str_opt("sample_aspect_ratio", "N/A");
2260         }
2261         print_fmt("pict_type",              "%c", av_get_picture_type_char(frame->pict_type));
2262         print_int("coded_picture_number",   frame->coded_picture_number);
2263         print_int("display_picture_number", frame->display_picture_number);
2264         print_int("interlaced_frame",       frame->interlaced_frame);
2265         print_int("top_field_first",        frame->top_field_first);
2266         print_int("repeat_pict",            frame->repeat_pict);
2267
2268         print_color_range(w, frame->color_range);
2269         print_color_space(w, frame->colorspace);
2270         print_primaries(w, frame->color_primaries);
2271         print_color_trc(w, frame->color_trc);
2272         print_chroma_location(w, frame->chroma_location);
2273         break;
2274
2275     case AVMEDIA_TYPE_AUDIO:
2276         s = av_get_sample_fmt_name(frame->format);
2277         if (s) print_str    ("sample_fmt", s);
2278         else   print_str_opt("sample_fmt", "unknown");
2279         print_int("nb_samples",         frame->nb_samples);
2280         print_int("channels", frame->channels);
2281         if (frame->channel_layout) {
2282             av_bprint_clear(&pbuf);
2283             av_bprint_channel_layout(&pbuf, frame->channels,
2284                                      frame->channel_layout);
2285             print_str    ("channel_layout", pbuf.str);
2286         } else
2287             print_str_opt("channel_layout", "unknown");
2288         break;
2289     }
2290     if (do_show_frame_tags)
2291         show_tags(w, frame->metadata, SECTION_ID_FRAME_TAGS);
2292     if (do_show_log)
2293         show_log(w, SECTION_ID_FRAME_LOGS, SECTION_ID_FRAME_LOG, do_show_log);
2294     if (frame->nb_side_data) {
2295         writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA_LIST);
2296         for (i = 0; i < frame->nb_side_data; i++) {
2297             AVFrameSideData *sd = frame->side_data[i];
2298             const char *name;
2299
2300             writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA);
2301             name = av_frame_side_data_name(sd->type);
2302             print_str("side_data_type", name ? name : "unknown");
2303             if (sd->type == AV_FRAME_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
2304                 writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
2305                 print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
2306             } else if (sd->type == AV_FRAME_DATA_GOP_TIMECODE && sd->size >= 8) {
2307                 char tcbuf[AV_TIMECODE_STR_SIZE];
2308                 av_timecode_make_mpeg_tc_string(tcbuf, *(int64_t *)(sd->data));
2309                 print_str("timecode", tcbuf);
2310             } else if (sd->type == AV_FRAME_DATA_S12M_TIMECODE && sd->size == 16) {
2311                 uint32_t *tc = (uint32_t*)sd->data;
2312                 int m = FFMIN(tc[0],3);
2313                 writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA_TIMECODE_LIST);
2314                 for (int j = 1; j <= m ; j++) {
2315                     char tcbuf[AV_TIMECODE_STR_SIZE];
2316                     av_timecode_make_smpte_tc_string2(tcbuf, stream->avg_frame_rate, tc[j], 0, 0);
2317                     writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA_TIMECODE);
2318                     print_str("value", tcbuf);
2319                     writer_print_section_footer(w);
2320                 }
2321                 writer_print_section_footer(w);
2322             } else if (sd->type == AV_FRAME_DATA_MASTERING_DISPLAY_METADATA) {
2323                 AVMasteringDisplayMetadata *metadata = (AVMasteringDisplayMetadata *)sd->data;
2324
2325                 if (metadata->has_primaries) {
2326                     print_q("red_x", metadata->display_primaries[0][0], '/');
2327                     print_q("red_y", metadata->display_primaries[0][1], '/');
2328                     print_q("green_x", metadata->display_primaries[1][0], '/');
2329                     print_q("green_y", metadata->display_primaries[1][1], '/');
2330                     print_q("blue_x", metadata->display_primaries[2][0], '/');
2331                     print_q("blue_y", metadata->display_primaries[2][1], '/');
2332
2333                     print_q("white_point_x", metadata->white_point[0], '/');
2334                     print_q("white_point_y", metadata->white_point[1], '/');
2335                 }
2336
2337                 if (metadata->has_luminance) {
2338                     print_q("min_luminance", metadata->min_luminance, '/');
2339                     print_q("max_luminance", metadata->max_luminance, '/');
2340                 }
2341             } else if (sd->type == AV_FRAME_DATA_DYNAMIC_HDR_PLUS) {
2342                 AVDynamicHDRPlus *metadata = (AVDynamicHDRPlus *)sd->data;
2343                 print_dynamic_hdr10_plus(w, metadata);
2344             } else if (sd->type == AV_FRAME_DATA_CONTENT_LIGHT_LEVEL) {
2345                 AVContentLightMetadata *metadata = (AVContentLightMetadata *)sd->data;
2346                 print_int("max_content", metadata->MaxCLL);
2347                 print_int("max_average", metadata->MaxFALL);
2348             } else if (sd->type == AV_FRAME_DATA_ICC_PROFILE) {
2349                 AVDictionaryEntry *tag = av_dict_get(sd->metadata, "name", NULL, AV_DICT_MATCH_CASE);
2350                 if (tag)
2351                     print_str(tag->key, tag->value);
2352                 print_int("size", sd->size);
2353             }
2354             writer_print_section_footer(w);
2355         }
2356         writer_print_section_footer(w);
2357     }
2358
2359     writer_print_section_footer(w);
2360
2361     av_bprint_finalize(&pbuf, NULL);
2362     fflush(stdout);
2363 }
2364
2365 static av_always_inline int process_frame(WriterContext *w,
2366                                           InputFile *ifile,
2367                                           AVFrame *frame, AVPacket *pkt,
2368                                           int *packet_new)
2369 {
2370     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2371     AVCodecContext *dec_ctx = ifile->streams[pkt->stream_index].dec_ctx;
2372     AVCodecParameters *par = ifile->streams[pkt->stream_index].st->codecpar;
2373     AVSubtitle sub;
2374     int ret = 0, got_frame = 0;
2375
2376     clear_log(1);
2377     if (dec_ctx && dec_ctx->codec) {
2378         switch (par->codec_type) {
2379         case AVMEDIA_TYPE_VIDEO:
2380         case AVMEDIA_TYPE_AUDIO:
2381             if (*packet_new) {
2382                 ret = avcodec_send_packet(dec_ctx, pkt);
2383                 if (ret == AVERROR(EAGAIN)) {
2384                     ret = 0;
2385                 } else if (ret >= 0 || ret == AVERROR_EOF) {
2386                     ret = 0;
2387                     *packet_new = 0;
2388                 }
2389             }
2390             if (ret >= 0) {
2391                 ret = avcodec_receive_frame(dec_ctx, frame);
2392                 if (ret >= 0) {
2393                     got_frame = 1;
2394                 } else if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
2395                     ret = 0;
2396                 }
2397             }
2398             break;
2399
2400         case AVMEDIA_TYPE_SUBTITLE:
2401             if (*packet_new)
2402                 ret = avcodec_decode_subtitle2(dec_ctx, &sub, &got_frame, pkt);
2403             *packet_new = 0;
2404             break;
2405         default:
2406             *packet_new = 0;
2407         }
2408     } else {
2409         *packet_new = 0;
2410     }
2411
2412     if (ret < 0)
2413         return ret;
2414     if (got_frame) {
2415         int is_sub = (par->codec_type == AVMEDIA_TYPE_SUBTITLE);
2416         nb_streams_frames[pkt->stream_index]++;
2417         if (do_show_frames)
2418             if (is_sub)
2419                 show_subtitle(w, &sub, ifile->streams[pkt->stream_index].st, fmt_ctx);
2420             else
2421                 show_frame(w, frame, ifile->streams[pkt->stream_index].st, fmt_ctx);
2422         if (is_sub)
2423             avsubtitle_free(&sub);
2424     }
2425     return got_frame || *packet_new;
2426 }
2427
2428 static void log_read_interval(const ReadInterval *interval, void *log_ctx, int log_level)
2429 {
2430     av_log(log_ctx, log_level, "id:%d", interval->id);
2431
2432     if (interval->has_start) {
2433         av_log(log_ctx, log_level, " start:%s%s", interval->start_is_offset ? "+" : "",
2434                av_ts2timestr(interval->start, &AV_TIME_BASE_Q));
2435     } else {
2436         av_log(log_ctx, log_level, " start:N/A");
2437     }
2438
2439     if (interval->has_end) {
2440         av_log(log_ctx, log_level, " end:%s", interval->end_is_offset ? "+" : "");
2441         if (interval->duration_frames)
2442             av_log(log_ctx, log_level, "#%"PRId64, interval->end);
2443         else
2444             av_log(log_ctx, log_level, "%s", av_ts2timestr(interval->end, &AV_TIME_BASE_Q));
2445     } else {
2446         av_log(log_ctx, log_level, " end:N/A");
2447     }
2448
2449     av_log(log_ctx, log_level, "\n");
2450 }
2451
2452 static int read_interval_packets(WriterContext *w, InputFile *ifile,
2453                                  const ReadInterval *interval, int64_t *cur_ts)
2454 {
2455     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2456     AVPacket *pkt = NULL;
2457     AVFrame *frame = NULL;
2458     int ret = 0, i = 0, frame_count = 0;
2459     int64_t start = -INT64_MAX, end = interval->end;
2460     int has_start = 0, has_end = interval->has_end && !interval->end_is_offset;
2461
2462     av_log(NULL, AV_LOG_VERBOSE, "Processing read interval ");
2463     log_read_interval(interval, NULL, AV_LOG_VERBOSE);
2464
2465     if (interval->has_start) {
2466         int64_t target;
2467         if (interval->start_is_offset) {
2468             if (*cur_ts == AV_NOPTS_VALUE) {
2469                 av_log(NULL, AV_LOG_ERROR,
2470                        "Could not seek to relative position since current "
2471                        "timestamp is not defined\n");
2472                 ret = AVERROR(EINVAL);
2473                 goto end;
2474             }
2475             target = *cur_ts + interval->start;
2476         } else {
2477             target = interval->start;
2478         }
2479
2480         av_log(NULL, AV_LOG_VERBOSE, "Seeking to read interval start point %s\n",
2481                av_ts2timestr(target, &AV_TIME_BASE_Q));
2482         if ((ret = avformat_seek_file(fmt_ctx, -1, -INT64_MAX, target, INT64_MAX, 0)) < 0) {
2483             av_log(NULL, AV_LOG_ERROR, "Could not seek to position %"PRId64": %s\n",
2484                    interval->start, av_err2str(ret));
2485             goto end;
2486         }
2487     }
2488
2489     frame = av_frame_alloc();
2490     if (!frame) {
2491         ret = AVERROR(ENOMEM);
2492         goto end;
2493     }
2494     pkt = av_packet_alloc();
2495     if (!pkt) {
2496         ret = AVERROR(ENOMEM);
2497         goto end;
2498     }
2499     while (!av_read_frame(fmt_ctx, pkt)) {
2500         if (fmt_ctx->nb_streams > nb_streams) {
2501             REALLOCZ_ARRAY_STREAM(nb_streams_frames,  nb_streams, fmt_ctx->nb_streams);
2502             REALLOCZ_ARRAY_STREAM(nb_streams_packets, nb_streams, fmt_ctx->nb_streams);
2503             REALLOCZ_ARRAY_STREAM(selected_streams,   nb_streams, fmt_ctx->nb_streams);
2504             nb_streams = fmt_ctx->nb_streams;
2505         }
2506         if (selected_streams[pkt->stream_index]) {
2507             AVRational tb = ifile->streams[pkt->stream_index].st->time_base;
2508
2509             if (pkt->pts != AV_NOPTS_VALUE)
2510                 *cur_ts = av_rescale_q(pkt->pts, tb, AV_TIME_BASE_Q);
2511
2512             if (!has_start && *cur_ts != AV_NOPTS_VALUE) {
2513                 start = *cur_ts;
2514                 has_start = 1;
2515             }
2516
2517             if (has_start && !has_end && interval->end_is_offset) {
2518                 end = start + interval->end;
2519                 has_end = 1;
2520             }
2521
2522             if (interval->end_is_offset && interval->duration_frames) {
2523                 if (frame_count >= interval->end)
2524                     break;
2525             } else if (has_end && *cur_ts != AV_NOPTS_VALUE && *cur_ts >= end) {
2526                 break;
2527             }
2528
2529             frame_count++;
2530             if (do_read_packets) {
2531                 if (do_show_packets)
2532                     show_packet(w, ifile, pkt, i++);
2533                 nb_streams_packets[pkt->stream_index]++;
2534             }
2535             if (do_read_frames) {
2536                 int packet_new = 1;
2537                 while (process_frame(w, ifile, frame, pkt, &packet_new) > 0);
2538             }
2539         }
2540         av_packet_unref(pkt);
2541     }
2542     av_packet_unref(pkt);
2543     //Flush remaining frames that are cached in the decoder
2544     for (i = 0; i < fmt_ctx->nb_streams; i++) {
2545         pkt->stream_index = i;
2546         if (do_read_frames)
2547             while (process_frame(w, ifile, frame, pkt, &(int){1}) > 0);
2548     }
2549
2550 end:
2551     av_frame_free(&frame);
2552     av_packet_free(&pkt);
2553     if (ret < 0) {
2554         av_log(NULL, AV_LOG_ERROR, "Could not read packets in interval ");
2555         log_read_interval(interval, NULL, AV_LOG_ERROR);
2556     }
2557     return ret;
2558 }
2559
2560 static int read_packets(WriterContext *w, InputFile *ifile)
2561 {
2562     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2563     int i, ret = 0;
2564     int64_t cur_ts = fmt_ctx->start_time;
2565
2566     if (read_intervals_nb == 0) {
2567         ReadInterval interval = (ReadInterval) { .has_start = 0, .has_end = 0 };
2568         ret = read_interval_packets(w, ifile, &interval, &cur_ts);
2569     } else {
2570         for (i = 0; i < read_intervals_nb; i++) {
2571             ret = read_interval_packets(w, ifile, &read_intervals[i], &cur_ts);
2572             if (ret < 0)
2573                 break;
2574         }
2575     }
2576
2577     return ret;
2578 }
2579
2580 static int show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx, InputStream *ist, int in_program)
2581 {
2582     AVStream *stream = ist->st;
2583     AVCodecParameters *par;
2584     AVCodecContext *dec_ctx;
2585     char val_str[128];
2586     const char *s;
2587     AVRational sar, dar;
2588     AVBPrint pbuf;
2589     const AVCodecDescriptor *cd;
2590     int ret = 0;
2591     const char *profile = NULL;
2592
2593     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
2594
2595     writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM : SECTION_ID_STREAM);
2596
2597     print_int("index", stream->index);
2598
2599     par     = stream->codecpar;
2600     dec_ctx = ist->dec_ctx;
2601     if (cd = avcodec_descriptor_get(par->codec_id)) {
2602         print_str("codec_name", cd->name);
2603         if (!do_bitexact) {
2604             print_str("codec_long_name",
2605                       cd->long_name ? cd->long_name : "unknown");
2606         }
2607     } else {
2608         print_str_opt("codec_name", "unknown");
2609         if (!do_bitexact) {
2610             print_str_opt("codec_long_name", "unknown");
2611         }
2612     }
2613
2614     if (!do_bitexact && (profile = avcodec_profile_name(par->codec_id, par->profile)))
2615         print_str("profile", profile);
2616     else {
2617         if (par->profile != FF_PROFILE_UNKNOWN) {
2618             char profile_num[12];
2619             snprintf(profile_num, sizeof(profile_num), "%d", par->profile);
2620             print_str("profile", profile_num);
2621         } else
2622             print_str_opt("profile", "unknown");
2623     }
2624
2625     s = av_get_media_type_string(par->codec_type);
2626     if (s) print_str    ("codec_type", s);
2627     else   print_str_opt("codec_type", "unknown");
2628
2629     /* print AVI/FourCC tag */
2630     print_str("codec_tag_string",    av_fourcc2str(par->codec_tag));
2631     print_fmt("codec_tag", "0x%04"PRIx32, par->codec_tag);
2632
2633     switch (par->codec_type) {
2634     case AVMEDIA_TYPE_VIDEO:
2635         print_int("width",        par->width);
2636         print_int("height",       par->height);
2637         if (dec_ctx) {
2638             print_int("coded_width",  dec_ctx->coded_width);
2639             print_int("coded_height", dec_ctx->coded_height);
2640             print_int("closed_captions", !!(dec_ctx->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS));
2641         }
2642         print_int("has_b_frames", par->video_delay);
2643         sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, NULL);
2644         if (sar.num) {
2645             print_q("sample_aspect_ratio", sar, ':');
2646             av_reduce(&dar.num, &dar.den,
2647                       par->width  * sar.num,
2648                       par->height * sar.den,
2649                       1024*1024);
2650             print_q("display_aspect_ratio", dar, ':');
2651         } else {
2652             print_str_opt("sample_aspect_ratio", "N/A");
2653             print_str_opt("display_aspect_ratio", "N/A");
2654         }
2655         s = av_get_pix_fmt_name(par->format);
2656         if (s) print_str    ("pix_fmt", s);
2657         else   print_str_opt("pix_fmt", "unknown");
2658         print_int("level",   par->level);
2659
2660         print_color_range(w, par->color_range);
2661         print_color_space(w, par->color_space);
2662         print_color_trc(w, par->color_trc);
2663         print_primaries(w, par->color_primaries);
2664         print_chroma_location(w, par->chroma_location);
2665
2666         if (par->field_order == AV_FIELD_PROGRESSIVE)
2667             print_str("field_order", "progressive");
2668         else if (par->field_order == AV_FIELD_TT)
2669             print_str("field_order", "tt");
2670         else if (par->field_order == AV_FIELD_BB)
2671             print_str("field_order", "bb");
2672         else if (par->field_order == AV_FIELD_TB)
2673             print_str("field_order", "tb");
2674         else if (par->field_order == AV_FIELD_BT)
2675             print_str("field_order", "bt");
2676         else
2677             print_str_opt("field_order", "unknown");
2678
2679         if (dec_ctx)
2680             print_int("refs", dec_ctx->refs);
2681         break;
2682
2683     case AVMEDIA_TYPE_AUDIO:
2684         s = av_get_sample_fmt_name(par->format);
2685         if (s) print_str    ("sample_fmt", s);
2686         else   print_str_opt("sample_fmt", "unknown");
2687         print_val("sample_rate",     par->sample_rate, unit_hertz_str);
2688         print_int("channels",        par->channels);
2689
2690         if (par->channel_layout) {
2691             av_bprint_clear(&pbuf);
2692             av_bprint_channel_layout(&pbuf, par->channels, par->channel_layout);
2693             print_str    ("channel_layout", pbuf.str);
2694         } else {
2695             print_str_opt("channel_layout", "unknown");
2696         }
2697
2698         print_int("bits_per_sample", av_get_bits_per_sample(par->codec_id));
2699         break;
2700
2701     case AVMEDIA_TYPE_SUBTITLE:
2702         if (par->width)
2703             print_int("width",       par->width);
2704         else
2705             print_str_opt("width",   "N/A");
2706         if (par->height)
2707             print_int("height",      par->height);
2708         else
2709             print_str_opt("height",  "N/A");
2710         break;
2711     }
2712
2713     if (dec_ctx && dec_ctx->codec && dec_ctx->codec->priv_class && show_private_data) {
2714         const AVOption *opt = NULL;
2715         while (opt = av_opt_next(dec_ctx->priv_data,opt)) {
2716             uint8_t *str;
2717             if (!(opt->flags & AV_OPT_FLAG_EXPORT)) continue;
2718             if (av_opt_get(dec_ctx->priv_data, opt->name, 0, &str) >= 0) {
2719                 print_str(opt->name, str);
2720                 av_free(str);
2721             }
2722         }
2723     }
2724
2725     if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) print_fmt    ("id", "0x%x", stream->id);
2726     else                                          print_str_opt("id", "N/A");
2727     print_q("r_frame_rate",   stream->r_frame_rate,   '/');
2728     print_q("avg_frame_rate", stream->avg_frame_rate, '/');
2729     print_q("time_base",      stream->time_base,      '/');
2730     print_ts  ("start_pts",   stream->start_time);
2731     print_time("start_time",  stream->start_time, &stream->time_base);
2732     print_ts  ("duration_ts", stream->duration);
2733     print_time("duration",    stream->duration, &stream->time_base);
2734     if (par->bit_rate > 0)     print_val    ("bit_rate", par->bit_rate, unit_bit_per_second_str);
2735     else                       print_str_opt("bit_rate", "N/A");
2736     if (dec_ctx && dec_ctx->rc_max_rate > 0)
2737         print_val ("max_bit_rate", dec_ctx->rc_max_rate, unit_bit_per_second_str);
2738     else
2739         print_str_opt("max_bit_rate", "N/A");
2740     if (dec_ctx && dec_ctx->bits_per_raw_sample > 0) print_fmt("bits_per_raw_sample", "%d", dec_ctx->bits_per_raw_sample);
2741     else                                             print_str_opt("bits_per_raw_sample", "N/A");
2742     if (stream->nb_frames) print_fmt    ("nb_frames", "%"PRId64, stream->nb_frames);
2743     else                   print_str_opt("nb_frames", "N/A");
2744     if (nb_streams_frames[stream_idx])  print_fmt    ("nb_read_frames", "%"PRIu64, nb_streams_frames[stream_idx]);
2745     else                                print_str_opt("nb_read_frames", "N/A");
2746     if (nb_streams_packets[stream_idx]) print_fmt    ("nb_read_packets", "%"PRIu64, nb_streams_packets[stream_idx]);
2747     else                                print_str_opt("nb_read_packets", "N/A");
2748     if (do_show_data)
2749         writer_print_data(w, "extradata", par->extradata,
2750                                           par->extradata_size);
2751     writer_print_data_hash(w, "extradata_hash", par->extradata,
2752                                                 par->extradata_size);
2753
2754     /* Print disposition information */
2755 #define PRINT_DISPOSITION(flagname, name) do {                                \
2756         print_int(name, !!(stream->disposition & AV_DISPOSITION_##flagname)); \
2757     } while (0)
2758
2759     if (do_show_stream_disposition) {
2760         writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM_DISPOSITION : SECTION_ID_STREAM_DISPOSITION);
2761         PRINT_DISPOSITION(DEFAULT,          "default");
2762         PRINT_DISPOSITION(DUB,              "dub");
2763         PRINT_DISPOSITION(ORIGINAL,         "original");
2764         PRINT_DISPOSITION(COMMENT,          "comment");
2765         PRINT_DISPOSITION(LYRICS,           "lyrics");
2766         PRINT_DISPOSITION(KARAOKE,          "karaoke");
2767         PRINT_DISPOSITION(FORCED,           "forced");
2768         PRINT_DISPOSITION(HEARING_IMPAIRED, "hearing_impaired");
2769         PRINT_DISPOSITION(VISUAL_IMPAIRED,  "visual_impaired");
2770         PRINT_DISPOSITION(CLEAN_EFFECTS,    "clean_effects");
2771         PRINT_DISPOSITION(ATTACHED_PIC,     "attached_pic");
2772         PRINT_DISPOSITION(TIMED_THUMBNAILS, "timed_thumbnails");
2773         PRINT_DISPOSITION(CAPTIONS,         "captions");
2774         PRINT_DISPOSITION(DESCRIPTIONS,     "descriptions");
2775         PRINT_DISPOSITION(METADATA,         "metadata");
2776         PRINT_DISPOSITION(DEPENDENT,        "dependent");
2777         PRINT_DISPOSITION(STILL_IMAGE,      "still_image");
2778         writer_print_section_footer(w);
2779     }
2780
2781     if (do_show_stream_tags)
2782         ret = show_tags(w, stream->metadata, in_program ? SECTION_ID_PROGRAM_STREAM_TAGS : SECTION_ID_STREAM_TAGS);
2783
2784     if (stream->nb_side_data) {
2785         print_pkt_side_data(w, stream->codecpar, stream->side_data, stream->nb_side_data,
2786                             SECTION_ID_STREAM_SIDE_DATA_LIST,
2787                             SECTION_ID_STREAM_SIDE_DATA);
2788     }
2789
2790     writer_print_section_footer(w);
2791     av_bprint_finalize(&pbuf, NULL);
2792     fflush(stdout);
2793
2794     return ret;
2795 }
2796
2797 static int show_streams(WriterContext *w, InputFile *ifile)
2798 {
2799     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2800     int i, ret = 0;
2801
2802     writer_print_section_header(w, SECTION_ID_STREAMS);
2803     for (i = 0; i < ifile->nb_streams; i++)
2804         if (selected_streams[i]) {
2805             ret = show_stream(w, fmt_ctx, i, &ifile->streams[i], 0);
2806             if (ret < 0)
2807                 break;
2808         }
2809     writer_print_section_footer(w);
2810
2811     return ret;
2812 }
2813
2814 static int show_program(WriterContext *w, InputFile *ifile, AVProgram *program)
2815 {
2816     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2817     int i, ret = 0;
2818
2819     writer_print_section_header(w, SECTION_ID_PROGRAM);
2820     print_int("program_id", program->id);
2821     print_int("program_num", program->program_num);
2822     print_int("nb_streams", program->nb_stream_indexes);
2823     print_int("pmt_pid", program->pmt_pid);
2824     print_int("pcr_pid", program->pcr_pid);
2825     print_ts("start_pts", program->start_time);
2826     print_time("start_time", program->start_time, &AV_TIME_BASE_Q);
2827     print_ts("end_pts", program->end_time);
2828     print_time("end_time", program->end_time, &AV_TIME_BASE_Q);
2829     if (do_show_program_tags)
2830         ret = show_tags(w, program->metadata, SECTION_ID_PROGRAM_TAGS);
2831     if (ret < 0)
2832         goto end;
2833
2834     writer_print_section_header(w, SECTION_ID_PROGRAM_STREAMS);
2835     for (i = 0; i < program->nb_stream_indexes; i++) {
2836         if (selected_streams[program->stream_index[i]]) {
2837             ret = show_stream(w, fmt_ctx, program->stream_index[i], &ifile->streams[program->stream_index[i]], 1);
2838             if (ret < 0)
2839                 break;
2840         }
2841     }
2842     writer_print_section_footer(w);
2843
2844 end:
2845     writer_print_section_footer(w);
2846     return ret;
2847 }
2848
2849 static int show_programs(WriterContext *w, InputFile *ifile)
2850 {
2851     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2852     int i, ret = 0;
2853
2854     writer_print_section_header(w, SECTION_ID_PROGRAMS);
2855     for (i = 0; i < fmt_ctx->nb_programs; i++) {
2856         AVProgram *program = fmt_ctx->programs[i];
2857         if (!program)
2858             continue;
2859         ret = show_program(w, ifile, program);
2860         if (ret < 0)
2861             break;
2862     }
2863     writer_print_section_footer(w);
2864     return ret;
2865 }
2866
2867 static int show_chapters(WriterContext *w, InputFile *ifile)
2868 {
2869     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2870     int i, ret = 0;
2871
2872     writer_print_section_header(w, SECTION_ID_CHAPTERS);
2873     for (i = 0; i < fmt_ctx->nb_chapters; i++) {
2874         AVChapter *chapter = fmt_ctx->chapters[i];
2875
2876         writer_print_section_header(w, SECTION_ID_CHAPTER);
2877         print_int("id", chapter->id);
2878         print_q  ("time_base", chapter->time_base, '/');
2879         print_int("start", chapter->start);
2880         print_time("start_time", chapter->start, &chapter->time_base);
2881         print_int("end", chapter->end);
2882         print_time("end_time", chapter->end, &chapter->time_base);
2883         if (do_show_chapter_tags)
2884             ret = show_tags(w, chapter->metadata, SECTION_ID_CHAPTER_TAGS);
2885         writer_print_section_footer(w);
2886     }
2887     writer_print_section_footer(w);
2888
2889     return ret;
2890 }
2891
2892 static int show_format(WriterContext *w, InputFile *ifile)
2893 {
2894     AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2895     char val_str[128];
2896     int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1;
2897     int ret = 0;
2898
2899     writer_print_section_header(w, SECTION_ID_FORMAT);
2900     print_str_validate("filename", fmt_ctx->url);
2901     print_int("nb_streams",       fmt_ctx->nb_streams);
2902     print_int("nb_programs",      fmt_ctx->nb_programs);
2903     print_str("format_name",      fmt_ctx->iformat->name);
2904     if (!do_bitexact) {
2905         if (fmt_ctx->iformat->long_name) print_str    ("format_long_name", fmt_ctx->iformat->long_name);
2906         else                             print_str_opt("format_long_name", "unknown");
2907     }
2908     print_time("start_time",      fmt_ctx->start_time, &AV_TIME_BASE_Q);
2909     print_time("duration",        fmt_ctx->duration,   &AV_TIME_BASE_Q);
2910     if (size >= 0) print_val    ("size", size, unit_byte_str);
2911     else           print_str_opt("size", "N/A");
2912     if (fmt_ctx->bit_rate > 0) print_val    ("bit_rate", fmt_ctx->bit_rate, unit_bit_per_second_str);
2913     else                       print_str_opt("bit_rate", "N/A");
2914     print_int("probe_score", fmt_ctx->probe_score);
2915     if (do_show_format_tags)
2916         ret = show_tags(w, fmt_ctx->metadata, SECTION_ID_FORMAT_TAGS);
2917
2918     writer_print_section_footer(w);
2919     fflush(stdout);
2920     return ret;
2921 }
2922
2923 static void show_error(WriterContext *w, int err)
2924 {
2925     char errbuf[128];
2926     const char *errbuf_ptr = errbuf;
2927
2928     if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
2929         errbuf_ptr = strerror(AVUNERROR(err));
2930
2931     writer_print_section_header(w, SECTION_ID_ERROR);
2932     print_int("code", err);
2933     print_str("string", errbuf_ptr);
2934     writer_print_section_footer(w);
2935 }
2936
2937 static int open_input_file(InputFile *ifile, const char *filename,
2938                            const char *print_filename)
2939 {
2940     int err, i;
2941     AVFormatContext *fmt_ctx = NULL;
2942     AVDictionaryEntry *t = NULL;
2943     int scan_all_pmts_set = 0;
2944
2945     fmt_ctx = avformat_alloc_context();
2946     if (!fmt_ctx) {
2947         print_error(filename, AVERROR(ENOMEM));
2948         exit_program(1);
2949     }
2950
2951     if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
2952         av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
2953         scan_all_pmts_set = 1;
2954     }
2955     if ((err = avformat_open_input(&fmt_ctx, filename,
2956                                    iformat, &format_opts)) < 0) {
2957         print_error(filename, err);
2958         return err;
2959     }
2960     if (print_filename) {
2961         av_freep(&fmt_ctx->url);
2962         fmt_ctx->url = av_strdup(print_filename);
2963     }
2964     ifile->fmt_ctx = fmt_ctx;
2965     if (scan_all_pmts_set)
2966         av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
2967     while ((t = av_dict_get(format_opts, "", t, AV_DICT_IGNORE_SUFFIX)))
2968         av_log(NULL, AV_LOG_WARNING, "Option %s skipped - not known to demuxer.\n", t->key);
2969
2970     if (find_stream_info) {
2971         AVDictionary **opts = setup_find_stream_info_opts(fmt_ctx, codec_opts);
2972         int orig_nb_streams = fmt_ctx->nb_streams;
2973
2974         err = avformat_find_stream_info(fmt_ctx, opts);
2975
2976         for (i = 0; i < orig_nb_streams; i++)
2977             av_dict_free(&opts[i]);
2978         av_freep(&opts);
2979
2980         if (err < 0) {
2981             print_error(filename, err);
2982             return err;
2983         }
2984     }
2985
2986     av_dump_format(fmt_ctx, 0, filename, 0);
2987
2988     ifile->streams = av_mallocz_array(fmt_ctx->nb_streams,
2989                                       sizeof(*ifile->streams));
2990     if (!ifile->streams)
2991         exit(1);
2992     ifile->nb_streams = fmt_ctx->nb_streams;
2993
2994     /* bind a decoder to each input stream */
2995     for (i = 0; i < fmt_ctx->nb_streams; i++) {
2996         InputStream *ist = &ifile->streams[i];
2997         AVStream *stream = fmt_ctx->streams[i];
2998         const AVCodec *codec;
2999
3000         ist->st = stream;
3001
3002         if (stream->codecpar->codec_id == AV_CODEC_ID_PROBE) {
3003             av_log(NULL, AV_LOG_WARNING,
3004                    "Failed to probe codec for input stream %d\n",
3005                     stream->index);
3006             continue;
3007         }
3008
3009         codec = avcodec_find_decoder(stream->codecpar->codec_id);
3010         if (!codec) {
3011             av_log(NULL, AV_LOG_WARNING,
3012                     "Unsupported codec with id %d for input stream %d\n",
3013                     stream->codecpar->codec_id, stream->index);
3014             continue;
3015         }
3016         {
3017             AVDictionary *opts = filter_codec_opts(codec_opts, stream->codecpar->codec_id,
3018                                                    fmt_ctx, stream, codec);
3019
3020             ist->dec_ctx = avcodec_alloc_context3(codec);
3021             if (!ist->dec_ctx)
3022                 exit(1);
3023
3024             err = avcodec_parameters_to_context(ist->dec_ctx, stream->codecpar);
3025             if (err < 0)
3026                 exit(1);
3027
3028             if (do_show_log) {
3029                 // For loging it is needed to disable at least frame threads as otherwise
3030                 // the log information would need to be reordered and matches up to contexts and frames
3031                 // That is in fact possible but not trivial
3032                 av_dict_set(&codec_opts, "threads", "1", 0);
3033             }
3034
3035             ist->dec_ctx->pkt_timebase = stream->time_base;
3036
3037             if (avcodec_open2(ist->dec_ctx, codec, &opts) < 0) {
3038                 av_log(NULL, AV_LOG_WARNING, "Could not open codec for input stream %d\n",
3039                        stream->index);
3040                 exit(1);
3041             }
3042
3043             if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
3044                 av_log(NULL, AV_LOG_ERROR, "Option %s for input stream %d not found\n",
3045                        t->key, stream->index);
3046                 return AVERROR_OPTION_NOT_FOUND;
3047             }
3048         }
3049     }
3050
3051     ifile->fmt_ctx = fmt_ctx;
3052     return 0;
3053 }
3054
3055 static void close_input_file(InputFile *ifile)
3056 {
3057     int i;
3058
3059     /* close decoder for each stream */
3060     for (i = 0; i < ifile->nb_streams; i++)
3061         if (ifile->streams[i].st->codecpar->codec_id != AV_CODEC_ID_NONE)
3062             avcodec_free_context(&ifile->streams[i].dec_ctx);
3063
3064     av_freep(&ifile->streams);
3065     ifile->nb_streams = 0;
3066
3067     avformat_close_input(&ifile->fmt_ctx);
3068 }
3069
3070 static int probe_file(WriterContext *wctx, const char *filename,
3071                       const char *print_filename)
3072 {
3073     InputFile ifile = { 0 };
3074     int ret, i;
3075     int section_id;
3076
3077     do_read_frames = do_show_frames || do_count_frames;
3078     do_read_packets = do_show_packets || do_count_packets;
3079
3080     ret = open_input_file(&ifile, filename, print_filename);
3081     if (ret < 0)
3082         goto end;
3083
3084 #define CHECK_END if (ret < 0) goto end
3085
3086     nb_streams = ifile.fmt_ctx->nb_streams;
3087     REALLOCZ_ARRAY_STREAM(nb_streams_frames,0,ifile.fmt_ctx->nb_streams);
3088     REALLOCZ_ARRAY_STREAM(nb_streams_packets,0,ifile.fmt_ctx->nb_streams);
3089     REALLOCZ_ARRAY_STREAM(selected_streams,0,ifile.fmt_ctx->nb_streams);
3090
3091     for (i = 0; i < ifile.fmt_ctx->nb_streams; i++) {
3092         if (stream_specifier) {
3093             ret = avformat_match_stream_specifier(ifile.fmt_ctx,
3094                                                   ifile.fmt_ctx->streams[i],
3095                                                   stream_specifier);
3096             CHECK_END;
3097             else
3098                 selected_streams[i] = ret;
3099             ret = 0;
3100         } else {
3101             selected_streams[i] = 1;
3102         }
3103         if (!selected_streams[i])
3104             ifile.fmt_ctx->streams[i]->discard = AVDISCARD_ALL;
3105     }
3106
3107     if (do_read_frames || do_read_packets) {
3108         if (do_show_frames && do_show_packets &&
3109             wctx->writer->flags & WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER)
3110             section_id = SECTION_ID_PACKETS_AND_FRAMES;
3111         else if (do_show_packets && !do_show_frames)
3112             section_id = SECTION_ID_PACKETS;
3113         else // (!do_show_packets && do_show_frames)
3114             section_id = SECTION_ID_FRAMES;
3115         if (do_show_frames || do_show_packets)
3116             writer_print_section_header(wctx, section_id);
3117         ret = read_packets(wctx, &ifile);
3118         if (do_show_frames || do_show_packets)
3119             writer_print_section_footer(wctx);
3120         CHECK_END;
3121     }
3122
3123     if (do_show_programs) {
3124         ret = show_programs(wctx, &ifile);
3125         CHECK_END;
3126     }
3127
3128     if (do_show_streams) {
3129         ret = show_streams(wctx, &ifile);
3130         CHECK_END;
3131     }
3132     if (do_show_chapters) {
3133         ret = show_chapters(wctx, &ifile);
3134         CHECK_END;
3135     }
3136     if (do_show_format) {
3137         ret = show_format(wctx, &ifile);
3138         CHECK_END;
3139     }
3140
3141 end:
3142     if (ifile.fmt_ctx)
3143         close_input_file(&ifile);
3144     av_freep(&nb_streams_frames);
3145     av_freep(&nb_streams_packets);
3146     av_freep(&selected_streams);
3147
3148     return ret;
3149 }
3150
3151 static void show_usage(void)
3152 {
3153     av_log(NULL, AV_LOG_INFO, "Simple multimedia streams analyzer\n");
3154     av_log(NULL, AV_LOG_INFO, "usage: %s [OPTIONS] [INPUT_FILE]\n", program_name);
3155     av_log(NULL, AV_LOG_INFO, "\n");
3156 }
3157
3158 static void ffprobe_show_program_version(WriterContext *w)
3159 {
3160     AVBPrint pbuf;
3161     av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
3162
3163     writer_print_section_header(w, SECTION_ID_PROGRAM_VERSION);
3164     print_str("version", FFMPEG_VERSION);
3165     print_fmt("copyright", "Copyright (c) %d-%d the FFmpeg developers",
3166               program_birth_year, CONFIG_THIS_YEAR);
3167     print_str("compiler_ident", CC_IDENT);
3168     print_str("configuration", FFMPEG_CONFIGURATION);
3169     writer_print_section_footer(w);
3170
3171     av_bprint_finalize(&pbuf, NULL);
3172 }
3173
3174 #define SHOW_LIB_VERSION(libname, LIBNAME)                              \
3175     do {                                                                \
3176         if (CONFIG_##LIBNAME) {                                         \
3177             unsigned int version = libname##_version();                 \
3178             writer_print_section_header(w, SECTION_ID_LIBRARY_VERSION); \
3179             print_str("name",    "lib" #libname);                       \
3180             print_int("major",   LIB##LIBNAME##_VERSION_MAJOR);         \
3181             print_int("minor",   LIB##LIBNAME##_VERSION_MINOR);         \
3182             print_int("micro",   LIB##LIBNAME##_VERSION_MICRO);         \
3183             print_int("version", version);                              \
3184             print_str("ident",   LIB##LIBNAME##_IDENT);                 \
3185             writer_print_section_footer(w);                             \
3186         }                                                               \
3187     } while (0)
3188
3189 static void ffprobe_show_library_versions(WriterContext *w)
3190 {
3191     writer_print_section_header(w, SECTION_ID_LIBRARY_VERSIONS);
3192     SHOW_LIB_VERSION(avutil,     AVUTIL);
3193     SHOW_LIB_VERSION(avcodec,    AVCODEC);
3194     SHOW_LIB_VERSION(avformat,   AVFORMAT);
3195     SHOW_LIB_VERSION(avdevice,   AVDEVICE);
3196     SHOW_LIB_VERSION(avfilter,   AVFILTER);
3197     SHOW_LIB_VERSION(swscale,    SWSCALE);
3198     SHOW_LIB_VERSION(swresample, SWRESAMPLE);
3199     SHOW_LIB_VERSION(postproc,   POSTPROC);
3200     writer_print_section_footer(w);
3201 }
3202
3203 #define PRINT_PIX_FMT_FLAG(flagname, name)                                \
3204     do {                                                                  \
3205         print_int(name, !!(pixdesc->flags & AV_PIX_FMT_FLAG_##flagname)); \
3206     } while (0)
3207
3208 static void ffprobe_show_pixel_formats(WriterContext *w)
3209 {
3210     const AVPixFmtDescriptor *pixdesc = NULL;
3211     int i, n;
3212
3213     writer_print_section_header(w, SECTION_ID_PIXEL_FORMATS);
3214     while (pixdesc = av_pix_fmt_desc_next(pixdesc)) {
3215         writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT);
3216         print_str("name", pixdesc->name);
3217         print_int("nb_components", pixdesc->nb_components);
3218         if ((pixdesc->nb_components >= 3) && !(pixdesc->flags & AV_PIX_FMT_FLAG_RGB)) {
3219             print_int    ("log2_chroma_w", pixdesc->log2_chroma_w);
3220             print_int    ("log2_chroma_h", pixdesc->log2_chroma_h);
3221         } else {
3222             print_str_opt("log2_chroma_w", "N/A");
3223             print_str_opt("log2_chroma_h", "N/A");
3224         }
3225         n = av_get_bits_per_pixel(pixdesc);
3226         if (n) print_int    ("bits_per_pixel", n);
3227         else   print_str_opt("bits_per_pixel", "N/A");
3228         if (do_show_pixel_format_flags) {
3229             writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_FLAGS);
3230             PRINT_PIX_FMT_FLAG(BE,        "big_endian");
3231             PRINT_PIX_FMT_FLAG(PAL,       "palette");
3232             PRINT_PIX_FMT_FLAG(BITSTREAM, "bitstream");
3233             PRINT_PIX_FMT_FLAG(HWACCEL,   "hwaccel");
3234             PRINT_PIX_FMT_FLAG(PLANAR,    "planar");
3235             PRINT_PIX_FMT_FLAG(RGB,       "rgb");
3236             PRINT_PIX_FMT_FLAG(ALPHA,     "alpha");
3237             writer_print_section_footer(w);
3238         }
3239         if (do_show_pixel_format_components && (pixdesc->nb_components > 0)) {
3240             writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_COMPONENTS);
3241             for (i = 0; i < pixdesc->nb_components; i++) {
3242                 writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_COMPONENT);
3243                 print_int("index", i + 1);
3244                 print_int("bit_depth", pixdesc->comp[i].depth);
3245                 writer_print_section_footer(w);
3246             }
3247             writer_print_section_footer(w);
3248         }
3249         writer_print_section_footer(w);
3250     }
3251     writer_print_section_footer(w);
3252 }
3253
3254 static int opt_format(void *optctx, const char *opt, const char *arg)
3255 {
3256     iformat = av_find_input_format(arg);
3257     if (!iformat) {
3258         av_log(NULL, AV_LOG_ERROR, "Unknown input format: %s\n", arg);
3259         return AVERROR(EINVAL);
3260     }
3261     return 0;
3262 }
3263
3264 static inline void mark_section_show_entries(SectionID section_id,
3265                                              int show_all_entries, AVDictionary *entries)
3266 {
3267     struct section *section = &sections[section_id];
3268
3269     section->show_all_entries = show_all_entries;
3270     if (show_all_entries) {
3271         SectionID *id;
3272         for (id = section->children_ids; *id != -1; id++)
3273             mark_section_show_entries(*id, show_all_entries, entries);
3274     } else {
3275         av_dict_copy(&section->entries_to_show, entries, 0);
3276     }
3277 }
3278
3279 static int match_section(const char *section_name,
3280                          int show_all_entries, AVDictionary *entries)
3281 {
3282     int i, ret = 0;
3283
3284     for (i = 0; i < FF_ARRAY_ELEMS(sections); i++) {
3285         const struct section *section = &sections[i];
3286         if (!strcmp(section_name, section->name) ||
3287             (section->unique_name && !strcmp(section_name, section->unique_name))) {
3288             av_log(NULL, AV_LOG_DEBUG,
3289                    "'%s' matches section with unique name '%s'\n", section_name,
3290                    (char *)av_x_if_null(section->unique_name, section->name));
3291             ret++;
3292             mark_section_show_entries(section->id, show_all_entries, entries);
3293         }
3294     }
3295     return ret;
3296 }
3297
3298 static int opt_show_entries(void *optctx, const char *opt, const char *arg)
3299 {
3300     const char *p = arg;
3301     int ret = 0;
3302
3303     while (*p) {
3304         AVDictionary *entries = NULL;
3305         char *section_name = av_get_token(&p, "=:");
3306         int show_all_entries = 0;
3307
3308         if (!section_name) {
3309             av_log(NULL, AV_LOG_ERROR,
3310                    "Missing section name for option '%s'\n", opt);
3311             return AVERROR(EINVAL);
3312         }
3313
3314         if (*p == '=') {
3315             p++;
3316             while (*p && *p != ':') {
3317                 char *entry = av_get_token(&p, ",:");
3318                 if (!entry)
3319                     break;
3320                 av_log(NULL, AV_LOG_VERBOSE,
3321                        "Adding '%s' to the entries to show in section '%s'\n",
3322                        entry, section_name);
3323                 av_dict_set(&entries, entry, "", AV_DICT_DONT_STRDUP_KEY);
3324                 if (*p == ',')
3325                     p++;
3326             }
3327         } else {
3328             show_all_entries = 1;
3329         }
3330
3331         ret = match_section(section_name, show_all_entries, entries);
3332         if (ret == 0) {
3333             av_log(NULL, AV_LOG_ERROR, "No match for section '%s'\n", section_name);
3334             ret = AVERROR(EINVAL);
3335         }
3336         av_dict_free(&entries);
3337         av_free(section_name);
3338
3339         if (ret <= 0)
3340             break;
3341         if (*p)
3342             p++;
3343     }
3344
3345     return ret;
3346 }
3347
3348 static int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
3349 {
3350     char *buf = av_asprintf("format=%s", arg);
3351     int ret;
3352
3353     if (!buf)
3354         return AVERROR(ENOMEM);
3355
3356     av_log(NULL, AV_LOG_WARNING,
3357            "Option '%s' is deprecated, use '-show_entries format=%s' instead\n",
3358            opt, arg);
3359     ret = opt_show_entries(optctx, opt, buf);
3360     av_free(buf);
3361     return ret;
3362 }
3363
3364 static void opt_input_file(void *optctx, const char *arg)
3365 {
3366     if (input_filename) {
3367         av_log(NULL, AV_LOG_ERROR,
3368                 "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3369                 arg, input_filename);
3370         exit_program(1);
3371     }
3372     if (!strcmp(arg, "-"))
3373         arg = "pipe:";
3374     input_filename = arg;
3375 }
3376
3377 static int opt_input_file_i(void *optctx, const char *opt, const char *arg)
3378 {
3379     opt_input_file(optctx, arg);
3380     return 0;
3381 }
3382
3383 static int opt_print_filename(void *optctx, const char *opt, const char *arg)
3384 {
3385     print_input_filename = arg;
3386     return 0;
3387 }
3388
3389 void show_help_default(const char *opt, const char *arg)
3390 {
3391     av_log_set_callback(log_callback_help);
3392     show_usage();
3393     show_help_options(options, "Main options:", 0, 0, 0);
3394     printf("\n");
3395
3396     show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3397     show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3398 }
3399
3400 /**
3401  * Parse interval specification, according to the format:
3402  * INTERVAL ::= [START|+START_OFFSET][%[END|+END_OFFSET]]
3403  * INTERVALS ::= INTERVAL[,INTERVALS]
3404 */
3405 static int parse_read_interval(const char *interval_spec,
3406                                ReadInterval *interval)
3407 {
3408     int ret = 0;
3409     char *next, *p, *spec = av_strdup(interval_spec);
3410     if (!spec)
3411         return AVERROR(ENOMEM);
3412
3413     if (!*spec) {
3414         av_log(NULL, AV_LOG_ERROR, "Invalid empty interval specification\n");
3415         ret = AVERROR(EINVAL);
3416         goto end;
3417     }
3418
3419     p = spec;
3420     next = strchr(spec, '%');
3421     if (next)
3422         *next++ = 0;
3423
3424     /* parse first part */
3425     if (*p) {
3426         interval->has_start = 1;
3427
3428         if (*p == '+') {
3429             interval->start_is_offset = 1;
3430             p++;
3431         } else {
3432             interval->start_is_offset = 0;
3433         }
3434
3435         ret = av_parse_time(&interval->start, p, 1);
3436         if (ret < 0) {
3437             av_log(NULL, AV_LOG_ERROR, "Invalid interval start specification '%s'\n", p);
3438             goto end;
3439         }
3440     } else {
3441         interval->has_start = 0;
3442     }
3443
3444     /* parse second part */
3445     p = next;
3446     if (p && *p) {
3447         int64_t us;
3448         interval->has_end = 1;
3449
3450         if (*p == '+') {
3451             interval->end_is_offset = 1;
3452             p++;
3453         } else {
3454             interval->end_is_offset = 0;
3455         }
3456
3457         if (interval->end_is_offset && *p == '#') {
3458             long long int lli;
3459             char *tail;
3460             interval->duration_frames = 1;
3461             p++;
3462             lli = strtoll(p, &tail, 10);
3463             if (*tail || lli < 0) {
3464                 av_log(NULL, AV_LOG_ERROR,
3465                        "Invalid or negative value '%s' for duration number of frames\n", p);
3466                 goto end;
3467             }
3468             interval->end = lli;
3469         } else {
3470             interval->duration_frames = 0;
3471             ret = av_parse_time(&us, p, 1);
3472             if (ret < 0) {
3473                 av_log(NULL, AV_LOG_ERROR, "Invalid interval end/duration specification '%s'\n", p);
3474                 goto end;
3475             }
3476             interval->end = us;
3477         }
3478     } else {
3479         interval->has_end = 0;
3480     }
3481
3482 end:
3483     av_free(spec);
3484     return ret;
3485 }
3486
3487 static int parse_read_intervals(const char *intervals_spec)
3488 {
3489     int ret, n, i;
3490     char *p, *spec = av_strdup(intervals_spec);
3491     if (!spec)
3492         return AVERROR(ENOMEM);
3493
3494     /* preparse specification, get number of intervals */
3495     for (n = 0, p = spec; *p; p++)
3496         if (*p == ',')
3497             n++;
3498     n++;
3499
3500     read_intervals = av_malloc_array(n, sizeof(*read_intervals));
3501     if (!read_intervals) {
3502         ret = AVERROR(ENOMEM);
3503         goto end;
3504     }
3505     read_intervals_nb = n;
3506
3507     /* parse intervals */
3508     p = spec;
3509     for (i = 0; p; i++) {
3510         char *next;
3511
3512         av_assert0(i < read_intervals_nb);
3513         next = strchr(p, ',');
3514         if (next)
3515             *next++ = 0;
3516
3517         read_intervals[i].id = i;
3518         ret = parse_read_interval(p, &read_intervals[i]);
3519         if (ret < 0) {
3520             av_log(NULL, AV_LOG_ERROR, "Error parsing read interval #%d '%s'\n",
3521                    i, p);
3522             goto end;
3523         }
3524         av_log(NULL, AV_LOG_VERBOSE, "Parsed log interval ");
3525         log_read_interval(&read_intervals[i], NULL, AV_LOG_VERBOSE);
3526         p = next;
3527     }
3528     av_assert0(i == read_intervals_nb);
3529
3530 end:
3531     av_free(spec);
3532     return ret;
3533 }
3534
3535 static int opt_read_intervals(void *optctx, const char *opt, const char *arg)
3536 {
3537     return parse_read_intervals(arg);
3538 }
3539
3540 static int opt_pretty(void *optctx, const char *opt, const char *arg)
3541 {
3542     show_value_unit              = 1;
3543     use_value_prefix             = 1;
3544     use_byte_value_binary_prefix = 1;
3545     use_value_sexagesimal_format = 1;
3546     return 0;
3547 }
3548
3549 static void print_section(SectionID id, int level)
3550 {
3551     const SectionID *pid;
3552     const struct section *section = &sections[id];
3553     printf("%c%c%c",
3554            section->flags & SECTION_FLAG_IS_WRAPPER           ? 'W' : '.',
3555            section->flags & SECTION_FLAG_IS_ARRAY             ? 'A' : '.',
3556            section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS  ? 'V' : '.');
3557     printf("%*c  %s", level * 4, ' ', section->name);
3558     if (section->unique_name)
3559         printf("/%s", section->unique_name);
3560     printf("\n");
3561
3562     for (pid = section->children_ids; *pid != -1; pid++)
3563         print_section(*pid, level+1);
3564 }
3565
3566 static int opt_sections(void *optctx, const char *opt, const char *arg)
3567 {
3568     printf("Sections:\n"
3569            "W.. = Section is a wrapper (contains other sections, no local entries)\n"
3570            ".A. = Section contains an array of elements of the same type\n"
3571            "..V = Section may contain a variable number of fields with variable keys\n"
3572            "FLAGS NAME/UNIQUE_NAME\n"
3573            "---\n");
3574     print_section(SECTION_ID_ROOT, 0);
3575     return 0;
3576 }
3577
3578 static int opt_show_versions(void *optctx, const char *opt, const char *arg)
3579 {
3580     mark_section_show_entries(SECTION_ID_PROGRAM_VERSION, 1, NULL);
3581     mark_section_show_entries(SECTION_ID_LIBRARY_VERSION, 1, NULL);
3582     return 0;
3583 }
3584
3585 #define DEFINE_OPT_SHOW_SECTION(section, target_section_id)             \
3586     static int opt_show_##section(void *optctx, const char *opt, const char *arg) \
3587     {                                                                   \
3588         mark_section_show_entries(SECTION_ID_##target_section_id, 1, NULL); \
3589         return 0;                                                       \
3590     }
3591
3592 DEFINE_OPT_SHOW_SECTION(chapters,         CHAPTERS)
3593 DEFINE_OPT_SHOW_SECTION(error,            ERROR)
3594 DEFINE_OPT_SHOW_SECTION(format,           FORMAT)
3595 DEFINE_OPT_SHOW_SECTION(frames,           FRAMES)
3596 DEFINE_OPT_SHOW_SECTION(library_versions, LIBRARY_VERSIONS)
3597 DEFINE_OPT_SHOW_SECTION(packets,          PACKETS)
3598 DEFINE_OPT_SHOW_SECTION(pixel_formats,    PIXEL_FORMATS)
3599 DEFINE_OPT_SHOW_SECTION(program_version,  PROGRAM_VERSION)
3600 DEFINE_OPT_SHOW_SECTION(streams,          STREAMS)
3601 DEFINE_OPT_SHOW_SECTION(programs,         PROGRAMS)
3602
3603 static const OptionDef real_options[] = {
3604     CMDUTILS_COMMON_OPTIONS
3605     { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "format" },
3606     { "unit", OPT_BOOL, {&show_value_unit}, "show unit of the displayed values" },
3607     { "prefix", OPT_BOOL, {&use_value_prefix}, "use SI prefixes for the displayed values" },
3608     { "byte_binary_prefix", OPT_BOOL, {&use_byte_value_binary_prefix},
3609       "use binary prefixes for byte units" },
3610     { "sexagesimal", OPT_BOOL,  {&use_value_sexagesimal_format},
3611       "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
3612     { "pretty", 0, {.func_arg = opt_pretty},
3613       "prettify the format of displayed values, make it more human readable" },
3614     { "print_format", OPT_STRING | HAS_ARG, { &print_format },
3615       "set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml)", "format" },
3616     { "of", OPT_STRING | HAS_ARG, { &print_format }, "alias for -print_format", "format" },
3617     { "select_streams", OPT_STRING | HAS_ARG, { &stream_specifier }, "select the specified streams", "stream_specifier" },
3618     { "sections", OPT_EXIT, {.func_arg = opt_sections}, "print sections structure and section information, and exit" },
3619     { "show_data",    OPT_BOOL, { &do_show_data }, "show packets data" },
3620     { "show_data_hash", OPT_STRING | HAS_ARG, { &show_data_hash }, "show packets data hash" },
3621     { "show_error",   0, { .func_arg = &opt_show_error },  "show probing error" },
3622     { "show_format",  0, { .func_arg = &opt_show_format }, "show format/container info" },
3623     { "show_frames",  0, { .func_arg = &opt_show_frames }, "show frames info" },
3624     { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry},
3625       "show a particular entry from the format/container info", "entry" },
3626     { "show_entries", HAS_ARG, {.func_arg = opt_show_entries},
3627       "show a set of specified entries", "entry_list" },
3628 #if HAVE_THREADS
3629     { "show_log", OPT_INT|HAS_ARG, { &do_show_log }, "show log" },
3630 #endif
3631     { "show_packets", 0, { .func_arg = &opt_show_packets }, "show packets info" },
3632     { "show_programs", 0, { .func_arg = &opt_show_programs }, "show programs info" },
3633     { "show_streams", 0, { .func_arg = &opt_show_streams }, "show streams info" },
3634     { "show_chapters", 0, { .func_arg = &opt_show_chapters }, "show chapters info" },
3635     { "count_frames", OPT_BOOL, { &do_count_frames }, "count the number of frames per stream" },
3636     { "count_packets", OPT_BOOL, { &do_count_packets }, "count the number of packets per stream" },
3637     { "show_program_version",  0, { .func_arg = &opt_show_program_version },  "show ffprobe version" },
3638     { "show_library_versions", 0, { .func_arg = &opt_show_library_versions }, "show library versions" },
3639     { "show_versions",         0, { .func_arg = &opt_show_versions }, "show program and library versions" },
3640     { "show_pixel_formats", 0, { .func_arg = &opt_show_pixel_formats }, "show pixel format descriptions" },
3641     { "show_private_data", OPT_BOOL, { &show_private_data }, "show private data" },
3642     { "private",           OPT_BOOL, { &show_private_data }, "same as show_private_data" },
3643     { "bitexact", OPT_BOOL, {&do_bitexact}, "force bitexact output" },
3644     { "read_intervals", HAS_ARG, {.func_arg = opt_read_intervals}, "set read intervals", "read_intervals" },
3645     { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, "generic catch all option", "" },
3646     { "i", HAS_ARG, {.func_arg = opt_input_file_i}, "read specified file", "input_file"},
3647     { "print_filename", HAS_ARG, {.func_arg = opt_print_filename}, "override the printed input filename", "print_file"},
3648     { "find_stream_info", OPT_BOOL | OPT_INPUT | OPT_EXPERT, { &find_stream_info },
3649         "read and decode the streams to fill missing information with heuristics" },
3650     { NULL, },
3651 };
3652
3653 static inline int check_section_show_entries(int section_id)
3654 {
3655     int *id;
3656     struct section *section = &sections[section_id];
3657     if (sections[section_id].show_all_entries || sections[section_id].entries_to_show)
3658         return 1;
3659     for (id = section->children_ids; *id != -1; id++)
3660         if (check_section_show_entries(*id))
3661             return 1;
3662     return 0;
3663 }
3664
3665 #define SET_DO_SHOW(id, varname) do {                                   \
3666         if (check_section_show_entries(SECTION_ID_##id))                \
3667             do_show_##varname = 1;                                      \
3668     } while (0)
3669
3670 int main(int argc, char **argv)
3671 {
3672     const Writer *w;
3673     WriterContext *wctx;
3674     char *buf;
3675     char *w_name = NULL, *w_args = NULL;
3676     int ret, i;
3677
3678     init_dynload();
3679
3680 #if HAVE_THREADS
3681     ret = pthread_mutex_init(&log_mutex, NULL);
3682     if (ret != 0) {
3683         goto end;
3684     }
3685 #endif
3686     av_log_set_flags(AV_LOG_SKIP_REPEATED);
3687     register_exit(ffprobe_cleanup);
3688
3689     options = real_options;
3690     parse_loglevel(argc, argv, options);
3691     avformat_network_init();
3692     init_opts();
3693 #if CONFIG_AVDEVICE
3694     avdevice_register_all();
3695 #endif
3696
3697     show_banner(argc, argv, options);
3698     parse_options(NULL, argc, argv, options, opt_input_file);
3699
3700     if (do_show_log)
3701         av_log_set_callback(log_callback);
3702
3703     /* mark things to show, based on -show_entries */
3704     SET_DO_SHOW(CHAPTERS, chapters);
3705     SET_DO_SHOW(ERROR, error);
3706     SET_DO_SHOW(FORMAT, format);
3707     SET_DO_SHOW(FRAMES, frames);
3708     SET_DO_SHOW(LIBRARY_VERSIONS, library_versions);
3709     SET_DO_SHOW(PACKETS, packets);
3710     SET_DO_SHOW(PIXEL_FORMATS, pixel_formats);
3711     SET_DO_SHOW(PIXEL_FORMAT_FLAGS, pixel_format_flags);
3712     SET_DO_SHOW(PIXEL_FORMAT_COMPONENTS, pixel_format_components);
3713     SET_DO_SHOW(PROGRAM_VERSION, program_version);
3714     SET_DO_SHOW(PROGRAMS, programs);
3715     SET_DO_SHOW(STREAMS, streams);
3716     SET_DO_SHOW(STREAM_DISPOSITION, stream_disposition);
3717     SET_DO_SHOW(PROGRAM_STREAM_DISPOSITION, stream_disposition);
3718
3719     SET_DO_SHOW(CHAPTER_TAGS, chapter_tags);
3720     SET_DO_SHOW(FORMAT_TAGS, format_tags);
3721     SET_DO_SHOW(FRAME_TAGS, frame_tags);
3722     SET_DO_SHOW(PROGRAM_TAGS, program_tags);
3723     SET_DO_SHOW(STREAM_TAGS, stream_tags);
3724     SET_DO_SHOW(PROGRAM_STREAM_TAGS, stream_tags);
3725     SET_DO_SHOW(PACKET_TAGS, packet_tags);
3726
3727     if (do_bitexact && (do_show_program_version || do_show_library_versions)) {
3728         av_log(NULL, AV_LOG_ERROR,
3729                "-bitexact and -show_program_version or -show_library_versions "
3730                "options are incompatible\n");
3731         ret = AVERROR(EINVAL);
3732         goto end;
3733     }
3734
3735     writer_register_all();
3736
3737     if (!print_format)
3738         print_format = av_strdup("default");
3739     if (!print_format) {
3740         ret = AVERROR(ENOMEM);
3741         goto end;
3742     }
3743     w_name = av_strtok(print_format, "=", &buf);
3744     if (!w_name) {
3745         av_log(NULL, AV_LOG_ERROR,
3746                "No name specified for the output format\n");
3747         ret = AVERROR(EINVAL);
3748         goto end;
3749     }
3750     w_args = buf;
3751
3752     if (show_data_hash) {
3753         if ((ret = av_hash_alloc(&hash, show_data_hash)) < 0) {
3754             if (ret == AVERROR(EINVAL)) {
3755                 const char *n;
3756                 av_log(NULL, AV_LOG_ERROR,
3757                        "Unknown hash algorithm '%s'\nKnown algorithms:",
3758                        show_data_hash);
3759                 for (i = 0; (n = av_hash_names(i)); i++)
3760                     av_log(NULL, AV_LOG_ERROR, " %s", n);
3761                 av_log(NULL, AV_LOG_ERROR, "\n");
3762             }
3763             goto end;
3764         }
3765     }
3766
3767     w = writer_get_by_name(w_name);
3768     if (!w) {
3769         av_log(NULL, AV_LOG_ERROR, "Unknown output format with name '%s'\n", w_name);
3770         ret = AVERROR(EINVAL);
3771         goto end;
3772     }
3773
3774     if ((ret = writer_open(&wctx, w, w_args,
3775                            sections, FF_ARRAY_ELEMS(sections))) >= 0) {
3776         if (w == &xml_writer)
3777             wctx->string_validation_utf8_flags |= AV_UTF8_FLAG_EXCLUDE_XML_INVALID_CONTROL_CODES;
3778
3779         writer_print_section_header(wctx, SECTION_ID_ROOT);
3780
3781         if (do_show_program_version)
3782             ffprobe_show_program_version(wctx);
3783         if (do_show_library_versions)
3784             ffprobe_show_library_versions(wctx);
3785         if (do_show_pixel_formats)
3786             ffprobe_show_pixel_formats(wctx);
3787
3788         if (!input_filename &&
3789             ((do_show_format || do_show_programs || do_show_streams || do_show_chapters || do_show_packets || do_show_error) ||
3790              (!do_show_program_version && !do_show_library_versions && !do_show_pixel_formats))) {
3791             show_usage();
3792             av_log(NULL, AV_LOG_ERROR, "You have to specify one input file.\n");
3793             av_log(NULL, AV_LOG_ERROR, "Use -h to get full help or, even better, run 'man %s'.\n", program_name);
3794             ret = AVERROR(EINVAL);
3795         } else if (input_filename) {
3796             ret = probe_file(wctx, input_filename, print_input_filename);
3797             if (ret < 0 && do_show_error)
3798                 show_error(wctx, ret);
3799         }
3800
3801         writer_print_section_footer(wctx);
3802         writer_close(&wctx);
3803     }
3804
3805 end:
3806     av_freep(&print_format);
3807     av_freep(&read_intervals);
3808     av_hash_freep(&hash);
3809
3810     uninit_opts();
3811     for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
3812         av_dict_free(&(sections[i].entries_to_show));
3813
3814     avformat_network_deinit();
3815
3816     return ret < 0;
3817 }