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command: add video-frame-info/{gop,smpte,estimated-smpte}-timecode 

Co-authored-by: Kacper Michajłow <kasper93@gmail.com>
This commit is contained in:
llyyr 2024-09-23 04:08:22 +02:00 committed by Kacper Michajłow
parent 3863221246
commit d33bcc51a7
3 changed files with 40 additions and 0 deletions
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1
DOCS/interface-changes/video-frame-info-timecode.txt Normal file
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@ -0,0 +1 @@
add `video-frame-info/gop-timecode`, `video-frame-info/smpte-timecode` and `video-frame-info/estimated-smpte-timecode`

9
DOCS/man/input.rst
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@ -2733,6 +2733,15 @@ Property list
``video-frame-info/repeat`` ``video-frame-info/repeat``
Whether the frame must be delayed when decoding. Whether the frame must be delayed when decoding.
``video-frame-info/gop-timecode``
String with the GOP timecode encoded in the frame.
``video-frame-info/smpte-timecode``
String with the SMPTE timecode encoded in the frame.
``video-frame-info/estimated-smpte-timecode``
Estimated timecode based on the current playback position and frame count.
``container-fps`` ``container-fps``
Container FPS. This can easily contain bogus values. For videos that use Container FPS. This can easily contain bogus values. For videos that use
modern container formats or video codecs, this will often be incorrect. modern container formats or video codecs, this will often be incorrect.

30
player/command.c
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@ -28,6 +28,7 @@
#include <ass/ass.h> #include <ass/ass.h>
#include <libavutil/avstring.h> #include <libavutil/avstring.h>
#include <libavutil/common.h> #include <libavutil/common.h>
#include <libavutil/timecode.h>
#include "mpv_talloc.h" #include "mpv_talloc.h"
#include "client.h" #include "client.h"
@ -2524,11 +2525,40 @@ static int mp_property_video_frame_info(void *ctx, struct m_property *prop,
const char *pict_type = f->pict_type >= 1 && f->pict_type <= 3 const char *pict_type = f->pict_type >= 1 && f->pict_type <= 3
? pict_types[f->pict_type] : NULL; ? pict_types[f->pict_type] : NULL;
char gop_tc[AV_TIMECODE_STR_SIZE] = {0};
char s12m_tc[AV_TIMECODE_STR_SIZE] = {0};
for (int n = 0; n < f->num_ff_side_data; n++) {
struct mp_ff_side_data *mpsd = &f->ff_side_data[n];
if (mpsd->type == AV_FRAME_DATA_GOP_TIMECODE)
av_timecode_make_mpeg_tc_string(gop_tc, *(int64_t*)(mpsd->buf->data));
if (mpctx->vo_chain && mpsd->type == AV_FRAME_DATA_S12M_TIMECODE) {
av_timecode_make_smpte_tc_string2(s12m_tc,
av_d2q(mpctx->vo_chain->filter->container_fps, INT_MAX),
*(uint32_t*)(mpsd->buf->data), 0, 0);
}
}
char approx_smpte[AV_TIMECODE_STR_SIZE] = {0};
if (s12m_tc[0] == '\0' && mpctx->vo_chain) {
const AVTimecode tcr = {
.start = 0,
.flags = AV_TIMECODE_FLAG_DROPFRAME,
.rate = av_d2q(mpctx->vo_chain->filter->container_fps, INT_MAX),
.fps = lrint(mpctx->vo_chain->filter->container_fps),
};
int frame = lrint(get_current_pos_ratio(mpctx, false) * get_frame_count(mpctx));
av_timecode_make_string(&tcr, approx_smpte, frame);
}
struct m_sub_property props[] = { struct m_sub_property props[] = {
{"picture-type", SUB_PROP_STR(pict_type), .unavailable = !pict_type}, {"picture-type", SUB_PROP_STR(pict_type), .unavailable = !pict_type},
{"interlaced", SUB_PROP_BOOL(!!(f->fields & MP_IMGFIELD_INTERLACED))}, {"interlaced", SUB_PROP_BOOL(!!(f->fields & MP_IMGFIELD_INTERLACED))},
{"tff", SUB_PROP_BOOL(!!(f->fields & MP_IMGFIELD_TOP_FIRST))}, {"tff", SUB_PROP_BOOL(!!(f->fields & MP_IMGFIELD_TOP_FIRST))},
{"repeat", SUB_PROP_BOOL(!!(f->fields & MP_IMGFIELD_REPEAT_FIRST))}, {"repeat", SUB_PROP_BOOL(!!(f->fields & MP_IMGFIELD_REPEAT_FIRST))},
{"gop-timecode", SUB_PROP_STR(gop_tc), .unavailable = gop_tc[0] == '\0'},
{"smpte-timecode", SUB_PROP_STR(s12m_tc), .unavailable = s12m_tc[0] == '\0'},
{"estimated-smpte-timecode", SUB_PROP_STR(approx_smpte), .unavailable = approx_smpte[0] == '\0'},
{0} {0}
}; };