mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
ffprobe: introduce output format writers.
This commit is contained in:
Clément Bœsch
parent
f33be93b1b
commit
0629b1ff35
288
ffprobe.c
288
ffprobe.c
@ -41,6 +41,8 @@ static int use_value_prefix = 0;
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static int use_byte_value_binary_prefix = 0;
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static int use_value_sexagesimal_format = 0;
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static char *print_format;
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/* globals */
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static const OptionDef options[];
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@ -121,141 +123,215 @@ static const char *media_type_string(enum AVMediaType media_type)
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return s ? s : "unknown";
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}
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static void show_packet(AVFormatContext *fmt_ctx, AVPacket *pkt)
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struct writer {
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const char *name;
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const char *item_sep; ///< separator between key/value couples
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const char *items_sep; ///< separator between sets of key/value couples
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const char *section_sep; ///< separator between sections (streams, packets, ...)
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const char *header, *footer;
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void (*print_header)(const char *);
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void (*print_footer)(const char *);
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void (*print_fmt_f)(const char *, const char *, va_list ap);
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void (*print_int_f)(const char *, int);
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void (*show_tags)(struct writer *w, AVDictionary *dict);
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};
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/* Default output */
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static void default_print_header(const char *section)
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{
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printf("[%s]\n", section);
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}
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static void default_print_fmt(const char *key, const char *fmt, va_list ap)
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{
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printf("%s=", key);
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vprintf(fmt, ap);
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}
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static void default_print_int(const char *key, int value)
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{
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printf("%s=%d", key, value);
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}
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static void default_print_footer(const char *section)
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{
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printf("\n[/%s]", section);
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}
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/* Print helpers */
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static void print_vfmt0(struct writer *w, const char *key, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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w->print_fmt_f(key, fmt, ap);
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va_end(ap);
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}
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#define print_fmt0(k, f, a...) print_vfmt0(w, k, f, ##a)
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#define print_fmt( k, f, a...) do { \
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if (w->item_sep) \
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printf("%s", w->item_sep); \
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print_vfmt0(w, k, f, ##a); \
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} while (0)
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#define print_int0(k, v) w->print_int_f(k, v)
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#define print_int( k, v) do { \
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if (w->item_sep) \
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printf("%s", w->item_sep); \
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print_int0(k, v); \
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} while (0)
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#define print_str0(k, v) print_fmt0(k, "%s", v)
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#define print_str( k, v) print_fmt (k, "%s", v)
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static void show_packet(struct writer *w, AVFormatContext *fmt_ctx, AVPacket *pkt, int packet_idx)
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{
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char val_str[128];
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AVStream *st = fmt_ctx->streams[pkt->stream_index];
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printf("[PACKET]\n");
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printf("codec_type=%s\n" , media_type_string(st->codec->codec_type));
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printf("stream_index=%d\n" , pkt->stream_index);
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printf("pts=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->pts));
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printf("pts_time=%s\n" , time_value_string(val_str, sizeof(val_str), pkt->pts, &st->time_base));
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printf("dts=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->dts));
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printf("dts_time=%s\n" , time_value_string(val_str, sizeof(val_str), pkt->dts, &st->time_base));
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printf("duration=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->duration));
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printf("duration_time=%s\n", time_value_string(val_str, sizeof(val_str), pkt->duration, &st->time_base));
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printf("size=%s\n" , value_string (val_str, sizeof(val_str), pkt->size, unit_byte_str));
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printf("pos=%"PRId64"\n" , pkt->pos);
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printf("flags=%c\n" , pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_');
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printf("[/PACKET]\n");
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if (packet_idx)
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printf("%s", w->items_sep);
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w->print_header("PACKET");
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print_str0("codec_type", media_type_string(st->codec->codec_type));
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print_int("stream_index", pkt->stream_index);
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print_str("pts", ts_value_string (val_str, sizeof(val_str), pkt->pts));
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print_str("pts_time", time_value_string(val_str, sizeof(val_str), pkt->pts, &st->time_base));
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print_str("dts", ts_value_string (val_str, sizeof(val_str), pkt->dts));
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print_str("dts_time", time_value_string(val_str, sizeof(val_str), pkt->dts, &st->time_base));
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print_str("duration", ts_value_string (val_str, sizeof(val_str), pkt->duration));
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print_str("duration_time", time_value_string(val_str, sizeof(val_str), pkt->duration, &st->time_base));
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print_str("size", value_string (val_str, sizeof(val_str), pkt->size, unit_byte_str));
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print_fmt("pos", "%"PRId64, pkt->pos);
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print_fmt("flags", "%c", pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_');
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w->print_footer("PACKET");
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fflush(stdout);
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}
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static void show_packets(AVFormatContext *fmt_ctx)
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static void show_packets(struct writer *w, AVFormatContext *fmt_ctx)
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{
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AVPacket pkt;
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int i = 0;
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av_init_packet(&pkt);
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while (!av_read_frame(fmt_ctx, &pkt))
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show_packet(fmt_ctx, &pkt);
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show_packet(w, fmt_ctx, &pkt, i++);
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}
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static void show_stream(AVFormatContext *fmt_ctx, int stream_idx)
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static void default_show_tags(struct writer *w, AVDictionary *dict)
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{
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AVDictionaryEntry *tag = NULL;
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while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
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printf("\nTAG:");
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print_str0(tag->key, tag->value);
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}
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}
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static void show_stream(struct writer *w, AVFormatContext *fmt_ctx, int stream_idx)
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{
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AVStream *stream = fmt_ctx->streams[stream_idx];
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AVCodecContext *dec_ctx;
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AVCodec *dec;
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char val_str[128];
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AVDictionaryEntry *tag = NULL;
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AVRational display_aspect_ratio;
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printf("[STREAM]\n");
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if (stream_idx)
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printf("%s", w->items_sep);
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w->print_header("STREAM");
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printf("index=%d\n", stream->index);
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print_int0("index", stream->index);
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if ((dec_ctx = stream->codec)) {
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if ((dec = dec_ctx->codec)) {
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printf("codec_name=%s\n", dec->name);
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printf("codec_long_name=%s\n", dec->long_name);
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print_str("codec_name", dec->name);
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print_str("codec_long_name", dec->long_name);
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} else {
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printf("codec_name=unknown\n");
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print_str("codec_name", "unknown");
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}
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printf("codec_type=%s\n", media_type_string(dec_ctx->codec_type));
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printf("codec_time_base=%d/%d\n", dec_ctx->time_base.num, dec_ctx->time_base.den);
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print_str("codec_type", media_type_string(dec_ctx->codec_type));
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print_fmt("codec_time_base", "%d/%d", dec_ctx->time_base.num, dec_ctx->time_base.den);
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/* print AVI/FourCC tag */
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av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag);
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printf("codec_tag_string=%s\n", val_str);
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printf("codec_tag=0x%04x\n", dec_ctx->codec_tag);
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print_str("codec_tag_string", val_str);
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print_fmt("codec_tag", "0x%04x", dec_ctx->codec_tag);
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switch (dec_ctx->codec_type) {
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case AVMEDIA_TYPE_VIDEO:
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printf("width=%d\n", dec_ctx->width);
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printf("height=%d\n", dec_ctx->height);
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printf("has_b_frames=%d\n", dec_ctx->has_b_frames);
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print_int("width", dec_ctx->width);
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print_int("height", dec_ctx->height);
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print_int("has_b_frames", dec_ctx->has_b_frames);
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if (dec_ctx->sample_aspect_ratio.num) {
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printf("sample_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num,
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dec_ctx->sample_aspect_ratio.den);
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print_fmt("sample_aspect_ratio", "%d:%d",
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dec_ctx->sample_aspect_ratio.num,
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dec_ctx->sample_aspect_ratio.den);
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av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
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dec_ctx->width * dec_ctx->sample_aspect_ratio.num,
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dec_ctx->height * dec_ctx->sample_aspect_ratio.den,
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1024*1024);
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printf("display_aspect_ratio=%d:%d\n", display_aspect_ratio.num,
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display_aspect_ratio.den);
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print_fmt("display_aspect_ratio", "%d:%d",
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display_aspect_ratio.num,
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display_aspect_ratio.den);
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}
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printf("pix_fmt=%s\n", dec_ctx->pix_fmt != PIX_FMT_NONE ?
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av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown");
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printf("level=%d\n", dec_ctx->level);
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print_str("pix_fmt", dec_ctx->pix_fmt != PIX_FMT_NONE ? av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown");
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print_int("level", dec_ctx->level);
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break;
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case AVMEDIA_TYPE_AUDIO:
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printf("sample_rate=%s\n", value_string(val_str, sizeof(val_str),
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dec_ctx->sample_rate,
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unit_hertz_str));
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printf("channels=%d\n", dec_ctx->channels);
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printf("bits_per_sample=%d\n", av_get_bits_per_sample(dec_ctx->codec_id));
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print_str("sample_rate", value_string(val_str, sizeof(val_str), dec_ctx->sample_rate, unit_hertz_str));
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print_int("channels", dec_ctx->channels);
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print_int("bits_per_sample", av_get_bits_per_sample(dec_ctx->codec_id));
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break;
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}
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} else {
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printf("codec_type=unknown\n");
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print_fmt("codec_type", "unknown");
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}
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if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS)
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printf("id=0x%x\n", stream->id);
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printf("r_frame_rate=%d/%d\n", stream->r_frame_rate.num, stream->r_frame_rate.den);
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printf("avg_frame_rate=%d/%d\n", stream->avg_frame_rate.num, stream->avg_frame_rate.den);
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printf("time_base=%d/%d\n", stream->time_base.num, stream->time_base.den);
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printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), stream->start_time,
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&stream->time_base));
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printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), stream->duration,
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&stream->time_base));
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print_fmt("id=", "0x%x", stream->id);
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print_fmt("r_frame_rate", "%d/%d", stream->r_frame_rate.num, stream->r_frame_rate.den);
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print_fmt("avg_frame_rate", "%d/%d", stream->avg_frame_rate.num, stream->avg_frame_rate.den);
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print_fmt("time_base", "%d/%d", stream->time_base.num, stream->time_base.den);
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print_str("start_time", time_value_string(val_str, sizeof(val_str), stream->start_time, &stream->time_base));
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print_str("duration", time_value_string(val_str, sizeof(val_str), stream->duration, &stream->time_base));
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if (stream->nb_frames)
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printf("nb_frames=%"PRId64"\n", stream->nb_frames);
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print_fmt("nb_frames", "%"PRId64, stream->nb_frames);
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while ((tag = av_dict_get(stream->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
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printf("TAG:%s=%s\n", tag->key, tag->value);
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w->show_tags(w, stream->metadata);
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printf("[/STREAM]\n");
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w->print_footer("STREAM");
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fflush(stdout);
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}
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static void show_format(AVFormatContext *fmt_ctx)
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static void show_streams(struct writer *w, AVFormatContext *fmt_ctx)
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{
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int i;
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for (i = 0; i < fmt_ctx->nb_streams; i++)
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show_stream(w, fmt_ctx, i);
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}
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static void show_format(struct writer *w, AVFormatContext *fmt_ctx)
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{
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AVDictionaryEntry *tag = NULL;
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char val_str[128];
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printf("[FORMAT]\n");
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printf("filename=%s\n", fmt_ctx->filename);
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printf("nb_streams=%d\n", fmt_ctx->nb_streams);
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printf("format_name=%s\n", fmt_ctx->iformat->name);
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printf("format_long_name=%s\n", fmt_ctx->iformat->long_name);
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printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time,
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&AV_TIME_BASE_Q));
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printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->duration,
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&AV_TIME_BASE_Q));
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printf("size=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->file_size,
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unit_byte_str));
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printf("bit_rate=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate,
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unit_bit_per_second_str));
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while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
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printf("TAG:%s=%s\n", tag->key, tag->value);
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printf("[/FORMAT]\n");
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w->print_header("FORMAT");
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print_str0("filename", fmt_ctx->filename);
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print_int("nb_streams", fmt_ctx->nb_streams);
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print_str("format_name", fmt_ctx->iformat->name);
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print_str("format_long_name", fmt_ctx->iformat->long_name);
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print_str("start_time", time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time, &AV_TIME_BASE_Q));
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print_str("duration", time_value_string(val_str, sizeof(val_str), fmt_ctx->duration, &AV_TIME_BASE_Q));
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print_str("size", value_string(val_str, sizeof(val_str), fmt_ctx->file_size, unit_byte_str));
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print_str("bit_rate", value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate, unit_bit_per_second_str));
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w->show_tags(w, fmt_ctx->metadata);
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w->print_footer("FORMAT");
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fflush(stdout);
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}
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@ -301,23 +377,67 @@ static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
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return 0;
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}
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#define WRITER_FUNC(func) \
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.print_header = func ## _print_header, \
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.print_footer = func ## _print_footer, \
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.print_fmt_f = func ## _print_fmt, \
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.print_int_f = func ## _print_int, \
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.show_tags = func ## _show_tags
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static struct writer writers[] = {{
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.name = "default",
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.item_sep = "\n",
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.items_sep = "\n",
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.section_sep = "\n",
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.footer = "\n",
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WRITER_FUNC(default),
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}
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};
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static int get_writer(const char *name)
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{
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int i;
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if (!name)
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return 0;
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for (i = 0; i < FF_ARRAY_ELEMS(writers); i++)
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if (!strcmp(writers[i].name, name))
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return i;
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return -1;
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}
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#define SECTION_PRINT(name, left) do { \
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if (do_show_ ## name) { \
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show_ ## name (w, fmt_ctx); \
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if (left) \
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printf("%s", w->section_sep); \
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} \
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} while (0)
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static int probe_file(const char *filename)
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{
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AVFormatContext *fmt_ctx;
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int ret, i;
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int ret, writer_id;
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struct writer *w;
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writer_id = get_writer(print_format);
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if (writer_id < 0) {
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fprintf(stderr, "Invalid output format '%s'\n", print_format);
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return AVERROR(EINVAL);
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}
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w = &writers[writer_id];
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if ((ret = open_input_file(&fmt_ctx, filename)))
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return ret;
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if (do_show_packets)
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show_packets(fmt_ctx);
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if (w->header)
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printf("%s", w->header);
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if (do_show_streams)
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for (i = 0; i < fmt_ctx->nb_streams; i++)
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show_stream(fmt_ctx, i);
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SECTION_PRINT(packets, do_show_streams || do_show_format);
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SECTION_PRINT(streams, do_show_format);
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SECTION_PRINT(format, 0);
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if (do_show_format)
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show_format(fmt_ctx);
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if (w->footer)
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printf("%s", w->footer);
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av_close_input_file(fmt_ctx);
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return 0;
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