X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=avprobe.c;h=3a3ae0fa7dce1acdbbd63e2e3e34959189e0d1c6;hb=9a07c1332cfe092b57b5758f22b686ca58806c60;hp=992f07c5cfdbc1c28a9a0a291a5e88a5762fb774;hpb=776f2bb91a5e31a385ee0a200df907e9acb0de87;p=ffmpeg diff --git a/avprobe.c b/avprobe.c index 992f07c5cfd..3a3ae0fa7dc 100644 --- a/avprobe.c +++ b/avprobe.c @@ -26,6 +26,7 @@ #include "libavutil/opt.h" #include "libavutil/pixdesc.h" #include "libavutil/dict.h" +#include "libavutil/libm.h" #include "libavdevice/avdevice.h" #include "cmdutils.h" @@ -33,6 +34,8 @@ const char program_name[] = "avprobe"; const int program_birth_year = 2007; static int do_show_format = 0; +static AVDictionary *fmt_entries_to_show = NULL; +static int nb_fmt_entries_to_show; static int do_show_packets = 0; static int do_show_streams = 0; @@ -42,23 +45,411 @@ static int use_byte_value_binary_prefix = 0; static int use_value_sexagesimal_format = 0; /* globals */ -static const OptionDef options[]; +static const OptionDef *options; /* AVprobe context */ static const char *input_filename; static AVInputFormat *iformat = NULL; -static const char *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" }; -static const char *decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" }; +static const char *const binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" }; +static const char *const decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" }; -static const char *unit_second_str = "s" ; -static const char *unit_hertz_str = "Hz" ; -static const char *unit_byte_str = "byte" ; -static const char *unit_bit_per_second_str = "bit/s"; +static const char unit_second_str[] = "s" ; +static const char unit_hertz_str[] = "Hz" ; +static const char unit_byte_str[] = "byte" ; +static const char unit_bit_per_second_str[] = "bit/s"; -void exit_program(int ret) +static void exit_program(void) { - exit(ret); + av_dict_free(&fmt_entries_to_show); +} + +/* + * The output is structured in array and objects that might contain items + * Array could require the objects within to not be named. + * Object could require the items within to be named. + * + * For flat representation the name of each section is saved on prefix so it + * can be rendered in order to represent nested structures (e.g. array of + * objects for the packets list). + * + * Within an array each element can need an unique identifier or an index. + * + * Nesting level is accounted separately. + */ + +typedef enum { + ARRAY, + OBJECT +} ProbeElementType; + +typedef struct { + const char *name; + ProbeElementType type; + int64_t index; + int64_t nb_elems; +} ProbeElement; + +typedef struct { + ProbeElement *prefix; + int level; + void (*print_header)(void); + void (*print_footer)(void); + + void (*print_array_header) (const char *name); + void (*print_array_footer) (const char *name); + void (*print_object_header)(const char *name); + void (*print_object_footer)(const char *name); + + void (*print_integer) (const char *key, int64_t value); + void (*print_string) (const char *key, const char *value); +} OutputContext; + +static AVIOContext *probe_out = NULL; +static OutputContext octx; +#define AVP_INDENT() avio_printf(probe_out, "%*c", octx.level * 2, ' ') + +/* + * Default format, INI + * + * - all key and values are utf8 + * - '.' is the subgroup separator + * - newlines and the following characters are escaped + * - '\' is the escape character + * - '#' is the comment + * - '=' is the key/value separators + * - ':' is not used but usually parsed as key/value separator + */ + +static void ini_print_header(void) +{ + avio_printf(probe_out, "# avprobe output\n\n"); +} +static void ini_print_footer(void) +{ + avio_w8(probe_out, '\n'); +} + +static void ini_escape_print(const char *s) +{ + int i = 0; + char c = 0; + + while (c = s[i++]) { + switch (c) { + case '\r': avio_printf(probe_out, "%s", "\\r"); break; + case '\n': avio_printf(probe_out, "%s", "\\n"); break; + case '\f': avio_printf(probe_out, "%s", "\\f"); break; + case '\b': avio_printf(probe_out, "%s", "\\b"); break; + case '\t': avio_printf(probe_out, "%s", "\\t"); break; + case '\\': + case '#' : + case '=' : + case ':' : avio_w8(probe_out, '\\'); + default: + if ((unsigned char)c < 32) + avio_printf(probe_out, "\\x00%02x", c & 0xff); + else + avio_w8(probe_out, c); + break; + } + } +} + +static void ini_print_array_header(const char *name) +{ + if (octx.prefix[octx.level -1].nb_elems) + avio_printf(probe_out, "\n"); +} + +static void ini_print_object_header(const char *name) +{ + int i; + ProbeElement *el = octx.prefix + octx.level -1; + + if (el->nb_elems) + avio_printf(probe_out, "\n"); + + avio_printf(probe_out, "["); + + for (i = 1; i < octx.level; i++) { + el = octx.prefix + i; + avio_printf(probe_out, "%s.", el->name); + if (el->index >= 0) + avio_printf(probe_out, "%"PRId64".", el->index); + } + + avio_printf(probe_out, "%s", name); + if (el && el->type == ARRAY) + avio_printf(probe_out, ".%"PRId64"", el->nb_elems); + avio_printf(probe_out, "]\n"); +} + +static void ini_print_integer(const char *key, int64_t value) +{ + ini_escape_print(key); + avio_printf(probe_out, "=%"PRId64"\n", value); +} + + +static void ini_print_string(const char *key, const char *value) +{ + ini_escape_print(key); + avio_printf(probe_out, "="); + ini_escape_print(value); + avio_w8(probe_out, '\n'); +} + +/* + * Alternate format, JSON + */ + +static void json_print_header(void) +{ + avio_printf(probe_out, "{"); +} +static void json_print_footer(void) +{ + avio_printf(probe_out, "}\n"); +} + +static void json_print_array_header(const char *name) +{ + if (octx.prefix[octx.level -1].nb_elems) + avio_printf(probe_out, ",\n"); + AVP_INDENT(); + avio_printf(probe_out, "\"%s\" : ", name); + avio_printf(probe_out, "[\n"); +} + +static void json_print_array_footer(const char *name) +{ + avio_printf(probe_out, "\n"); + AVP_INDENT(); + avio_printf(probe_out, "]"); +} + +static void json_print_object_header(const char *name) +{ + if (octx.prefix[octx.level -1].nb_elems) + avio_printf(probe_out, ",\n"); + AVP_INDENT(); + if (octx.prefix[octx.level -1].type == OBJECT) + avio_printf(probe_out, "\"%s\" : ", name); + avio_printf(probe_out, "{\n"); +} + +static void json_print_object_footer(const char *name) +{ + avio_printf(probe_out, "\n"); + AVP_INDENT(); + avio_printf(probe_out, "}"); +} + +static void json_print_integer(const char *key, int64_t value) +{ + if (octx.prefix[octx.level -1].nb_elems) + avio_printf(probe_out, ",\n"); + AVP_INDENT(); + avio_printf(probe_out, "\"%s\" : %"PRId64"", key, value); +} + +static void json_escape_print(const char *s) +{ + int i = 0; + char c = 0; + + while (c = s[i++]) { + switch (c) { + case '\r': avio_printf(probe_out, "%s", "\\r"); break; + case '\n': avio_printf(probe_out, "%s", "\\n"); break; + case '\f': avio_printf(probe_out, "%s", "\\f"); break; + case '\b': avio_printf(probe_out, "%s", "\\b"); break; + case '\t': avio_printf(probe_out, "%s", "\\t"); break; + case '\\': + case '"' : avio_w8(probe_out, '\\'); + default: + if ((unsigned char)c < 32) + avio_printf(probe_out, "\\u00%02x", c & 0xff); + else + avio_w8(probe_out, c); + break; + } + } +} + +static void json_print_string(const char *key, const char *value) +{ + if (octx.prefix[octx.level -1].nb_elems) + avio_printf(probe_out, ",\n"); + AVP_INDENT(); + avio_w8(probe_out, '\"'); + json_escape_print(key); + avio_printf(probe_out, "\" : \""); + json_escape_print(value); + avio_w8(probe_out, '\"'); +} + +/* + * old-style pseudo-INI + */ +static void old_print_object_header(const char *name) +{ + char *str, *p; + + if (!strcmp(name, "tags")) + return; + + str = p = av_strdup(name); + while (*p) { + *p = toupper(*p); + p++; + } + + avio_printf(probe_out, "[%s]\n", str); + av_freep(&str); +} + +static void old_print_object_footer(const char *name) +{ + char *str, *p; + + if (!strcmp(name, "tags")) + return; + + str = p = av_strdup(name); + while (*p) { + *p = toupper(*p); + p++; + } + + avio_printf(probe_out, "[/%s]\n", str); + av_freep(&str); +} + +static void old_print_string(const char *key, const char *value) +{ + if (!strcmp(octx.prefix[octx.level - 1].name, "tags")) + avio_printf(probe_out, "TAG:"); + ini_print_string(key, value); +} + +/* + * Simple Formatter for single entries. + */ + +static void show_format_entry_integer(const char *key, int64_t value) +{ + if (key && av_dict_get(fmt_entries_to_show, key, NULL, 0)) { + if (nb_fmt_entries_to_show > 1) + avio_printf(probe_out, "%s=", key); + avio_printf(probe_out, "%"PRId64"\n", value); + } +} + +static void show_format_entry_string(const char *key, const char *value) +{ + if (key && av_dict_get(fmt_entries_to_show, key, NULL, 0)) { + if (nb_fmt_entries_to_show > 1) + avio_printf(probe_out, "%s=", key); + avio_printf(probe_out, "%s\n", value); + } +} + +static void probe_group_enter(const char *name, int type) +{ + int64_t count = -1; + + octx.prefix = + av_realloc(octx.prefix, sizeof(ProbeElement) * (octx.level + 1)); + + if (!octx.prefix || !name) { + fprintf(stderr, "Out of memory\n"); + exit(1); + } + + if (octx.level) { + ProbeElement *parent = octx.prefix + octx.level -1; + if (parent->type == ARRAY) + count = parent->nb_elems; + parent->nb_elems++; + } + + octx.prefix[octx.level++] = (ProbeElement){name, type, count, 0}; +} + +static void probe_group_leave(void) +{ + --octx.level; +} + +static void probe_header(void) +{ + if (octx.print_header) + octx.print_header(); + probe_group_enter("root", OBJECT); +} + +static void probe_footer(void) +{ + if (octx.print_footer) + octx.print_footer(); + probe_group_leave(); +} + + +static void probe_array_header(const char *name) +{ + if (octx.print_array_header) + octx.print_array_header(name); + + probe_group_enter(name, ARRAY); +} + +static void probe_array_footer(const char *name) +{ + probe_group_leave(); + if (octx.print_array_footer) + octx.print_array_footer(name); +} + +static void probe_object_header(const char *name) +{ + if (octx.print_object_header) + octx.print_object_header(name); + + probe_group_enter(name, OBJECT); +} + +static void probe_object_footer(const char *name) +{ + probe_group_leave(); + if (octx.print_object_footer) + octx.print_object_footer(name); +} + +static void probe_int(const char *key, int64_t value) +{ + octx.print_integer(key, value); + octx.prefix[octx.level -1].nb_elems++; +} + +static void probe_str(const char *key, const char *value) +{ + octx.print_string(key, value); + octx.prefix[octx.level -1].nb_elems++; +} + +static void probe_dict(AVDictionary *dict, const char *name) +{ + AVDictionaryEntry *entry = NULL; + if (!dict) + return; + probe_object_header(name); + while ((entry = av_dict_get(dict, "", entry, AV_DICT_IGNORE_SUFFIX))) { + probe_str(entry->key, entry->value); + } + probe_object_footer(name); } static char *value_string(char *buf, int buf_size, double val, const char *unit) @@ -77,26 +468,29 @@ static char *value_string(char *buf, int buf_size, double val, const char *unit) int index; if (unit == unit_byte_str && use_byte_value_binary_prefix) { - index = (int) (log(val)/log(2)) / 10; - index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) -1); - val /= pow(2, index*10); + index = (int) log2(val) / 10; + index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) - 1); + val /= pow(2, index * 10); prefix_string = binary_unit_prefixes[index]; } else { index = (int) (log10(val)) / 3; - index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) -1); - val /= pow(10, index*3); + index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) - 1); + val /= pow(10, index * 3); prefix_string = decimal_unit_prefixes[index]; } - - snprintf(buf, buf_size, "%.3f %s%s", val, prefix_string, show_value_unit ? unit : ""); + snprintf(buf, buf_size, "%.*f%s%s", + index ? 3 : 0, val, + prefix_string, + show_value_unit ? unit : ""); } else { - snprintf(buf, buf_size, "%f %s", val, show_value_unit ? unit : ""); + snprintf(buf, buf_size, "%f%s", val, show_value_unit ? unit : ""); } return buf; } -static char *time_value_string(char *buf, int buf_size, int64_t val, const AVRational *time_base) +static char *time_value_string(char *buf, int buf_size, int64_t val, + const AVRational *time_base) { if (val == AV_NOPTS_VALUE) { snprintf(buf, buf_size, "N/A"); @@ -107,7 +501,7 @@ static char *time_value_string(char *buf, int buf_size, int64_t val, const AVRat return buf; } -static char *ts_value_string (char *buf, int buf_size, int64_t ts) +static char *ts_value_string(char *buf, int buf_size, int64_t ts) { if (ts == AV_NOPTS_VALUE) { snprintf(buf, buf_size, "N/A"); @@ -118,6 +512,21 @@ static char *ts_value_string (char *buf, int buf_size, int64_t ts) return buf; } +static char *rational_string(char *buf, int buf_size, const char *sep, + const AVRational *rat) +{ + snprintf(buf, buf_size, "%d%s%d", rat->num, sep, rat->den); + return buf; +} + +static char *tag_string(char *buf, int buf_size, int tag) +{ + snprintf(buf, buf_size, "0x%04x", tag); + return buf; +} + + + static const char *media_type_string(enum AVMediaType media_type) { switch (media_type) { @@ -135,19 +544,25 @@ static void show_packet(AVFormatContext *fmt_ctx, AVPacket *pkt) char val_str[128]; AVStream *st = fmt_ctx->streams[pkt->stream_index]; - printf("[PACKET]\n"); - printf("codec_type=%s\n" , media_type_string(st->codec->codec_type)); - printf("stream_index=%d\n" , pkt->stream_index); - printf("pts=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->pts)); - printf("pts_time=%s\n" , time_value_string(val_str, sizeof(val_str), pkt->pts, &st->time_base)); - printf("dts=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->dts)); - printf("dts_time=%s\n" , time_value_string(val_str, sizeof(val_str), pkt->dts, &st->time_base)); - printf("duration=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->duration)); - printf("duration_time=%s\n", time_value_string(val_str, sizeof(val_str), pkt->duration, &st->time_base)); - printf("size=%s\n" , value_string (val_str, sizeof(val_str), pkt->size, unit_byte_str)); - printf("pos=%"PRId64"\n" , pkt->pos); - printf("flags=%c\n" , pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_'); - printf("[/PACKET]\n"); + probe_object_header("packet"); + probe_str("codec_type", media_type_string(st->codec->codec_type)); + probe_int("stream_index", pkt->stream_index); + probe_str("pts", ts_value_string(val_str, sizeof(val_str), pkt->pts)); + probe_str("pts_time", time_value_string(val_str, sizeof(val_str), + pkt->pts, &st->time_base)); + probe_str("dts", ts_value_string(val_str, sizeof(val_str), pkt->dts)); + probe_str("dts_time", time_value_string(val_str, sizeof(val_str), + pkt->dts, &st->time_base)); + probe_str("duration", ts_value_string(val_str, sizeof(val_str), + pkt->duration)); + probe_str("duration_time", time_value_string(val_str, sizeof(val_str), + pkt->duration, + &st->time_base)); + probe_str("size", value_string(val_str, sizeof(val_str), + pkt->size, unit_byte_str)); + probe_int("pos", pkt->pos); + probe_str("flags", pkt->flags & AV_PKT_FLAG_KEY ? "K" : "_"); + probe_object_footer("packet"); } static void show_packets(AVFormatContext *fmt_ctx) @@ -155,114 +570,134 @@ static void show_packets(AVFormatContext *fmt_ctx) AVPacket pkt; av_init_packet(&pkt); - + probe_array_header("packets"); while (!av_read_frame(fmt_ctx, &pkt)) show_packet(fmt_ctx, &pkt); + probe_array_footer("packets"); } static void show_stream(AVFormatContext *fmt_ctx, int stream_idx) { AVStream *stream = fmt_ctx->streams[stream_idx]; AVCodecContext *dec_ctx; - AVCodec *dec; + const AVCodec *dec; + const char *profile; char val_str[128]; - AVDictionaryEntry *tag = NULL; AVRational display_aspect_ratio; + const AVPixFmtDescriptor *desc; - printf("[STREAM]\n"); + probe_object_header("stream"); - printf("index=%d\n", stream->index); + probe_int("index", stream->index); if ((dec_ctx = stream->codec)) { if ((dec = dec_ctx->codec)) { - printf("codec_name=%s\n", dec->name); - printf("codec_long_name=%s\n", dec->long_name); + probe_str("codec_name", dec->name); + probe_str("codec_long_name", dec->long_name); } else { - printf("codec_name=unknown\n"); + probe_str("codec_name", "unknown"); } - printf("codec_type=%s\n", media_type_string(dec_ctx->codec_type)); - printf("codec_time_base=%d/%d\n", dec_ctx->time_base.num, dec_ctx->time_base.den); + probe_str("codec_type", media_type_string(dec_ctx->codec_type)); + probe_str("codec_time_base", + rational_string(val_str, sizeof(val_str), + "/", &dec_ctx->time_base)); /* print AVI/FourCC tag */ av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag); - printf("codec_tag_string=%s\n", val_str); - printf("codec_tag=0x%04x\n", dec_ctx->codec_tag); + probe_str("codec_tag_string", val_str); + probe_str("codec_tag", tag_string(val_str, sizeof(val_str), + dec_ctx->codec_tag)); + + /* print profile, if there is one */ + if (dec && (profile = av_get_profile_name(dec, dec_ctx->profile))) + probe_str("profile", profile); switch (dec_ctx->codec_type) { case AVMEDIA_TYPE_VIDEO: - printf("width=%d\n", dec_ctx->width); - printf("height=%d\n", dec_ctx->height); - printf("has_b_frames=%d\n", dec_ctx->has_b_frames); + probe_int("width", dec_ctx->width); + probe_int("height", dec_ctx->height); + probe_int("has_b_frames", dec_ctx->has_b_frames); if (dec_ctx->sample_aspect_ratio.num) { - printf("sample_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num, - dec_ctx->sample_aspect_ratio.den); + probe_str("sample_aspect_ratio", + rational_string(val_str, sizeof(val_str), ":", + &dec_ctx->sample_aspect_ratio)); av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, dec_ctx->width * dec_ctx->sample_aspect_ratio.num, dec_ctx->height * dec_ctx->sample_aspect_ratio.den, 1024*1024); - printf("display_aspect_ratio=%d:%d\n", display_aspect_ratio.num, - display_aspect_ratio.den); + probe_str("display_aspect_ratio", + rational_string(val_str, sizeof(val_str), ":", + &display_aspect_ratio)); } - printf("pix_fmt=%s\n", dec_ctx->pix_fmt != PIX_FMT_NONE ? - av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown"); - printf("level=%d\n", dec_ctx->level); + desc = av_pix_fmt_desc_get(dec_ctx->pix_fmt); + probe_str("pix_fmt", desc ? desc->name : "unknown"); + probe_int("level", dec_ctx->level); break; case AVMEDIA_TYPE_AUDIO: - printf("sample_rate=%s\n", value_string(val_str, sizeof(val_str), - dec_ctx->sample_rate, - unit_hertz_str)); - printf("channels=%d\n", dec_ctx->channels); - printf("bits_per_sample=%d\n", av_get_bits_per_sample(dec_ctx->codec_id)); + probe_str("sample_rate", + value_string(val_str, sizeof(val_str), + dec_ctx->sample_rate, + unit_hertz_str)); + probe_int("channels", dec_ctx->channels); + probe_int("bits_per_sample", + av_get_bits_per_sample(dec_ctx->codec_id)); break; } } else { - printf("codec_type=unknown\n"); + probe_str("codec_type", "unknown"); } if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) - printf("id=0x%x\n", stream->id); - printf("r_frame_rate=%d/%d\n", stream->r_frame_rate.num, stream->r_frame_rate.den); - printf("avg_frame_rate=%d/%d\n", stream->avg_frame_rate.num, stream->avg_frame_rate.den); - printf("time_base=%d/%d\n", stream->time_base.num, stream->time_base.den); - printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), stream->start_time, - &stream->time_base)); - printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), stream->duration, - &stream->time_base)); + probe_int("id", stream->id); + probe_str("avg_frame_rate", + rational_string(val_str, sizeof(val_str), "/", + &stream->avg_frame_rate)); + probe_str("time_base", + rational_string(val_str, sizeof(val_str), "/", + &stream->time_base)); + probe_str("start_time", + time_value_string(val_str, sizeof(val_str), + stream->start_time, &stream->time_base)); + probe_str("duration", + time_value_string(val_str, sizeof(val_str), + stream->duration, &stream->time_base)); if (stream->nb_frames) - printf("nb_frames=%"PRId64"\n", stream->nb_frames); + probe_int("nb_frames", stream->nb_frames); - while ((tag = av_dict_get(stream->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) - printf("TAG:%s=%s\n", tag->key, tag->value); + probe_dict(stream->metadata, "tags"); - printf("[/STREAM]\n"); + probe_object_footer("stream"); } static void show_format(AVFormatContext *fmt_ctx) { - AVDictionaryEntry *tag = NULL; char val_str[128]; - - printf("[FORMAT]\n"); - - printf("filename=%s\n", fmt_ctx->filename); - printf("nb_streams=%d\n", fmt_ctx->nb_streams); - printf("format_name=%s\n", fmt_ctx->iformat->name); - printf("format_long_name=%s\n", fmt_ctx->iformat->long_name); - printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time, - &AV_TIME_BASE_Q)); - printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->duration, - &AV_TIME_BASE_Q)); - printf("size=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->file_size, - unit_byte_str)); - printf("bit_rate=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate, - unit_bit_per_second_str)); - - while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) - printf("TAG:%s=%s\n", tag->key, tag->value); - - printf("[/FORMAT]\n"); + int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1; + + probe_object_header("format"); + probe_str("filename", fmt_ctx->filename); + probe_int("nb_streams", fmt_ctx->nb_streams); + probe_str("format_name", fmt_ctx->iformat->name); + probe_str("format_long_name", fmt_ctx->iformat->long_name); + probe_str("start_time", + time_value_string(val_str, sizeof(val_str), + fmt_ctx->start_time, &AV_TIME_BASE_Q)); + probe_str("duration", + time_value_string(val_str, sizeof(val_str), + fmt_ctx->duration, &AV_TIME_BASE_Q)); + probe_str("size", + size >= 0 ? value_string(val_str, sizeof(val_str), + size, unit_byte_str) + : "unknown"); + probe_str("bit_rate", + value_string(val_str, sizeof(val_str), + fmt_ctx->bit_rate, unit_bit_per_second_str)); + + probe_dict(fmt_ctx->metadata, "tags"); + + probe_object_footer("format"); } static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename) @@ -271,7 +706,8 @@ static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename) AVFormatContext *fmt_ctx = NULL; AVDictionaryEntry *t; - if ((err = avformat_open_input(&fmt_ctx, filename, iformat, &format_opts)) < 0) { + if ((err = avformat_open_input(&fmt_ctx, filename, + iformat, &format_opts)) < 0) { print_error(filename, err); return err; } @@ -294,8 +730,12 @@ static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename) AVStream *stream = fmt_ctx->streams[i]; AVCodec *codec; - if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) { - fprintf(stderr, "Unsupported codec with id %d for input stream %d\n", + if (stream->codec->codec_id == AV_CODEC_ID_PROBE) { + fprintf(stderr, "Failed to probe codec for input stream %d\n", + stream->index); + } else if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) { + fprintf(stderr, + "Unsupported codec with id %d for input stream %d\n", stream->codec->codec_id, stream->index); } else if (avcodec_open2(stream->codec, codec, NULL) < 0) { fprintf(stderr, "Error while opening codec for input stream %d\n", @@ -307,6 +747,20 @@ static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename) return 0; } +static void close_input_file(AVFormatContext **ctx_ptr) +{ + int i; + AVFormatContext *fmt_ctx = *ctx_ptr; + + /* close decoder for each stream */ + for (i = 0; i < fmt_ctx->nb_streams; i++) { + AVStream *stream = fmt_ctx->streams[i]; + + avcodec_close(stream->codec); + } + avformat_close_input(ctx_ptr); +} + static int probe_file(const char *filename) { AVFormatContext *fmt_ctx; @@ -315,17 +769,20 @@ static int probe_file(const char *filename) if ((ret = open_input_file(&fmt_ctx, filename))) return ret; - if (do_show_packets) - show_packets(fmt_ctx); + if (do_show_format) + show_format(fmt_ctx); - if (do_show_streams) + if (do_show_streams) { + probe_array_header("streams"); for (i = 0; i < fmt_ctx->nb_streams; i++) show_stream(fmt_ctx, i); + probe_array_footer("streams"); + } - if (do_show_format) - show_format(fmt_ctx); + if (do_show_packets) + show_packets(fmt_ctx); - av_close_input_file(fmt_ctx); + close_input_file(&fmt_ctx); return 0; } @@ -336,7 +793,7 @@ static void show_usage(void) printf("\n"); } -static int opt_format(const char *opt, const char *arg) +static int opt_format(void *optctx, const char *opt, const char *arg) { iformat = av_find_input_format(arg); if (!iformat) { @@ -346,10 +803,62 @@ static int opt_format(const char *opt, const char *arg) return 0; } +static int opt_output_format(void *optctx, const char *opt, const char *arg) +{ + + if (!strcmp(arg, "json")) { + octx.print_header = json_print_header; + octx.print_footer = json_print_footer; + octx.print_array_header = json_print_array_header; + octx.print_array_footer = json_print_array_footer; + octx.print_object_header = json_print_object_header; + octx.print_object_footer = json_print_object_footer; + + octx.print_integer = json_print_integer; + octx.print_string = json_print_string; + } else if (!strcmp(arg, "ini")) { + octx.print_header = ini_print_header; + octx.print_footer = ini_print_footer; + octx.print_array_header = ini_print_array_header; + octx.print_object_header = ini_print_object_header; + + octx.print_integer = ini_print_integer; + octx.print_string = ini_print_string; + } else if (!strcmp(arg, "old")) { + octx.print_header = NULL; + octx.print_object_header = old_print_object_header; + octx.print_object_footer = old_print_object_footer; + + octx.print_string = old_print_string; + } else { + av_log(NULL, AV_LOG_ERROR, "Unsupported formatter %s\n", arg); + return AVERROR(EINVAL); + } + return 0; +} + +static int opt_show_format_entry(void *optctx, const char *opt, const char *arg) +{ + do_show_format = 1; + nb_fmt_entries_to_show++; + octx.print_header = NULL; + octx.print_footer = NULL; + octx.print_array_header = NULL; + octx.print_array_footer = NULL; + octx.print_object_header = NULL; + octx.print_object_footer = NULL; + + octx.print_integer = show_format_entry_integer; + octx.print_string = show_format_entry_string; + av_dict_set(&fmt_entries_to_show, arg, "", 0); + return 0; +} + static void opt_input_file(void *optctx, const char *arg) { if (input_filename) { - fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n", + fprintf(stderr, + "Argument '%s' provided as input filename, but '%s' was already specified.\n", arg, input_filename); exit(1); } @@ -358,45 +867,67 @@ static void opt_input_file(void *optctx, const char *arg) input_filename = arg; } -static void show_help(void) +void show_help_default(const char *opt, const char *arg) { av_log_set_callback(log_callback_help); show_usage(); - show_help_options(options, "Main options:\n", 0, 0); + show_help_options(options, "Main options:", 0, 0, 0); printf("\n"); show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); } -static void opt_pretty(void) +static int opt_pretty(void *optctx, const char *opt, const char *arg) { show_value_unit = 1; use_value_prefix = 1; use_byte_value_binary_prefix = 1; use_value_sexagesimal_format = 1; + return 0; } -static const OptionDef options[] = { +static const OptionDef real_options[] = { #include "cmdutils_common_opts.h" - { "f", HAS_ARG, {(void*)opt_format}, "force format", "format" }, - { "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" }, - { "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" }, - { "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix}, + { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "format" }, + { "of", HAS_ARG, {.func_arg = opt_output_format}, "output the document either as ini or json", "output_format" }, + { "unit", OPT_BOOL, {&show_value_unit}, + "show unit of the displayed values" }, + { "prefix", OPT_BOOL, {&use_value_prefix}, + "use SI prefixes for the displayed values" }, + { "byte_binary_prefix", OPT_BOOL, {&use_byte_value_binary_prefix}, "use binary prefixes for byte units" }, - { "sexagesimal", OPT_BOOL, {(void*)&use_value_sexagesimal_format}, + { "sexagesimal", OPT_BOOL, {&use_value_sexagesimal_format}, "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" }, - { "pretty", 0, {(void*)&opt_pretty}, + { "pretty", 0, {.func_arg = opt_pretty}, "prettify the format of displayed values, make it more human readable" }, - { "show_format", OPT_BOOL, {(void*)&do_show_format} , "show format/container info" }, - { "show_packets", OPT_BOOL, {(void*)&do_show_packets}, "show packets info" }, - { "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" }, - { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" }, + { "show_format", OPT_BOOL, {&do_show_format} , "show format/container info" }, + { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry}, + "show a particular entry from the format/container info", "entry" }, + { "show_packets", OPT_BOOL, {&do_show_packets}, "show packets info" }, + { "show_streams", OPT_BOOL, {&do_show_streams}, "show streams info" }, + { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, + "generic catch all option", "" }, { NULL, }, }; +static int probe_buf_write(void *opaque, uint8_t *buf, int buf_size) +{ + printf("%.*s", buf_size, buf); + return 0; +} + +#define AVP_BUFFSIZE 4096 + int main(int argc, char **argv) { int ret; + uint8_t *buffer = av_malloc(AVP_BUFFSIZE); + + if (!buffer) + exit(1); + + atexit(exit_program); + options = real_options; parse_loglevel(argc, argv, options); av_register_all(); avformat_network_init(); @@ -406,16 +937,37 @@ int main(int argc, char **argv) #endif show_banner(); + + octx.print_header = ini_print_header; + octx.print_footer = ini_print_footer; + + octx.print_array_header = ini_print_array_header; + octx.print_object_header = ini_print_object_header; + + octx.print_integer = ini_print_integer; + octx.print_string = ini_print_string; + parse_options(NULL, argc, argv, options, opt_input_file); if (!input_filename) { show_usage(); fprintf(stderr, "You have to specify one input file.\n"); - fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'.\n", program_name); + fprintf(stderr, + "Use -h to get full help or, even better, run 'man %s'.\n", + program_name); exit(1); } + probe_out = avio_alloc_context(buffer, AVP_BUFFSIZE, 1, NULL, NULL, + probe_buf_write, NULL); + if (!probe_out) + exit(1); + + probe_header(); ret = probe_file(input_filename); + probe_footer(); + avio_flush(probe_out); + avio_close(probe_out); avformat_network_deinit();