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demux: add a format-name property

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It can be useful to know the underlying format of any entry in the
track list. Only applicable to the lavf demuxer.
This commit is contained in:
Dudemanguy 2023-10-28 00:41:57 -05:00
parent 8a9749b8a5
commit ccafd40ccc
4 changed files with 14 additions and 4 deletions
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5
DOCS/man/input.rst
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@ -3089,6 +3089,11 @@ Property list
``track-list/N/demux-par``
Pixel aspect ratio.
``track-list/N/format-name``
Short name for format from ffmpeg. If the track is audio, this will be
the name of the sample format. If the track is video, this will be the
name of the pixel format.
``track-list/N/audio-channels`` (deprecated)
Deprecated alias for ``track-list/N/demux-channel-count``.

11
demux/demux_lavf.c
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@ -29,14 +29,15 @@
#include <libavformat/avformat.h>
#include <libavformat/avio.h>
#include <libavutil/avutil.h>
#include <libavutil/avstring.h>
#include <libavutil/mathematics.h>
#include <libavutil/replaygain.h>
#include <libavutil/display.h>
#include <libavutil/opt.h>
#include <libavutil/dovi_meta.h>
#include <libavutil/mathematics.h>
#include <libavutil/opt.h>
#include <libavutil/pixdesc.h>
#include <libavutil/replaygain.h>
#include "audio/chmap_avchannel.h"
@ -726,6 +727,7 @@ static void handle_new_stream(demuxer_t *demuxer, int i)
sh->codec->samplerate = codec->sample_rate;
sh->codec->bitrate = codec->bit_rate;
sh->codec->format_name = talloc_strdup(sh, av_get_sample_fmt_name(codec->format));
double delay = 0;
if (codec->sample_rate > 0)
@ -764,6 +766,7 @@ static void handle_new_stream(demuxer_t *demuxer, int i)
sh->codec->disp_w = codec->width;
sh->codec->disp_h = codec->height;
sh->codec->format_name = talloc_strdup(sh, av_get_pix_fmt_name(codec->format));
if (st->avg_frame_rate.num)
sh->codec->fps = av_q2d(st->avg_frame_rate);
if (is_image(st, sh->attached_picture, priv->avif)) {

1
demux/stheader.h
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@ -111,6 +111,7 @@ struct mp_codec_params {
// STREAM_VIDEO + STREAM_AUDIO
int bits_per_coded_sample;
char *format_name; // pixel format (video) or sample format (audio)
// STREAM_SUB
double frame_based; // timestamps are frame-based (and this is the

1
player/command.c
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@ -2063,6 +2063,7 @@ static int get_track_entry(int item, int action, void *arg, void *ctx)
{"demux-bitrate", SUB_PROP_INT(p.bitrate), .unavailable = p.bitrate <= 0},
{"demux-rotation", SUB_PROP_INT(p.rotate), .unavailable = p.rotate <= 0},
{"demux-par", SUB_PROP_DOUBLE(par), .unavailable = par <= 0},
{"format-name", SUB_PROP_STR(p.format_name), .unavailable = !p.format_name},
{"replaygain-track-peak", SUB_PROP_FLOAT(rg.track_peak),
.unavailable = !has_rg},
{"replaygain-track-gain", SUB_PROP_FLOAT(rg.track_gain),