diff options
Diffstat (limited to 'libavcodec/h264_slice.c')
| -rw-r--r-- | libavcodec/h264_slice.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index d09cee4b13..f5415ba595 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -1287,6 +1287,44 @@ static int h264_export_frame_props(H264Context *h) h->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS; } + if (h->sei.picture_timing.fulltc_received) { + uint32_t tc = 0; + uint32_t frames; + + AVFrameSideData *tcside = av_frame_new_side_data(cur->f, + AV_FRAME_DATA_S12M_TIMECODE, + sizeof(uint32_t)); + if (!tcside) + return AVERROR(ENOMEM); + + /* For SMPTE 12-M timecodes, frame count is a special case if > 30 FPS. + See SMPTE ST 12-1:2014 Sec 12.1 for more info. */ + if (av_cmp_q(h->avctx->framerate, (AVRational) {30, 1}) == 1) { + frames = h->sei.picture_timing.tc_frames / 2; + if (h->sei.picture_timing.tc_frames % 2 == 1) { + if (av_cmp_q(h->avctx->framerate, (AVRational) {50, 1}) == 0) + tc |= (1 << 7); + else + tc |= (1 << 23); + } + } else { + frames = h->sei.picture_timing.tc_frames; + } + + tc |= h->sei.picture_timing.tc_dropframe << 30; + tc |= (frames / 10) << 28; + tc |= (frames % 10) << 24; + tc |= (h->sei.picture_timing.tc_seconds / 10) << 20; + tc |= (h->sei.picture_timing.tc_seconds % 10) << 16; + tc |= (h->sei.picture_timing.tc_minutes / 10) << 12; + tc |= (h->sei.picture_timing.tc_minutes % 10) << 8; + tc |= (h->sei.picture_timing.tc_hours / 10) << 4; + tc |= (h->sei.picture_timing.tc_hours % 10); + + memcpy(tcside->data, &tc, sizeof(uint32_t)); + h->sei.picture_timing.fulltc_received = 0; + } + if (h->sei.alternative_transfer.present && av_color_transfer_name(h->sei.alternative_transfer.preferred_transfer_characteristics) && h->sei.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) { |