apps/ffmpeg-rockchip
1
0
Fork 0
mirror of https://github.com/nyanmisaka/ffmpeg-rockchip.git synced 2025-10-09 02:30:45 +08:00
Code Issues Packages Projects Releases Wiki Activity

avdevice/decklink_dec: capture timecode to metadata when requested

Browse Source 
If the user provides a valid timecode_format look for timecode of that
format in the capture and if found store it on the video avstream's
metadata.

Slightly modified by Marton Balint to capture per-frame timecode as well.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Jon Morley
2018-05-31 02:45:07 -07:00
committed by Marton Balint
parent fb480a1f1e
commit 0946c0ec17
6 changed files with 69 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
libavdevice/decklink_dec.cpp
View File

@@ -752,6 +752,35 @@ HRESULT decklink_input_callback::VideoInputFrameArrived(
"- Frames dropped %u\n", ctx->frameCount, ++ctx->dropped);
}
no_video = 0;
// Handle Timecode (if requested)
if (ctx->tc_format) {
IDeckLinkTimecode *timecode;
if (videoFrame->GetTimecode(ctx->tc_format, &timecode) == S_OK) {
const char *tc = NULL;
DECKLINK_STR decklink_tc;
if (timecode->GetString(&decklink_tc) == S_OK) {
tc = DECKLINK_STRDUP(decklink_tc);
DECKLINK_FREE(decklink_tc);
}
timecode->Release();
if (tc) {
AVDictionary* metadata_dict = NULL;
int metadata_len;
uint8_t* packed_metadata;
if (av_dict_set(&metadata_dict, "timecode", tc, AV_DICT_DONT_STRDUP_VAL) >= 0) {
packed_metadata = av_packet_pack_dictionary(metadata_dict, &metadata_len);
av_dict_free(&metadata_dict);
if (packed_metadata) {
if (av_packet_add_side_data(&pkt, AV_PKT_DATA_STRINGS_METADATA, packed_metadata, metadata_len) < 0)
av_freep(&packed_metadata);
}
}
}
} else {
av_log(avctx, AV_LOG_DEBUG, "Unable to find timecode.\n");
}
}
}
pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, abs_wallclock, ctx->video_pts_source, ctx->video_st->time_base, &initial_video_pts, cctx->copyts);
@@ -969,6 +998,8 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx)
ctx->teletext_lines = cctx->teletext_lines;
ctx->preroll = cctx->preroll;
ctx->duplex_mode = cctx->duplex_mode;
if (cctx->tc_format > 0 && (unsigned int)cctx->tc_format < FF_ARRAY_ELEMS(decklink_timecode_format_map))
ctx->tc_format = decklink_timecode_format_map[cctx->tc_format];
if (cctx->video_input > 0 && (unsigned int)cctx->video_input < FF_ARRAY_ELEMS(decklink_video_connection_map))
ctx->video_input = decklink_video_connection_map[cctx->video_input];
if (cctx->audio_input > 0 && (unsigned int)cctx->audio_input < FF_ARRAY_ELEMS(decklink_audio_connection_map))
@@ -1222,6 +1253,15 @@ int ff_decklink_read_packet(AVFormatContext *avctx, AVPacket *pkt)
avpacket_queue_get(&ctx->queue, pkt, 1);
if (ctx->tc_format && !(av_dict_get(ctx->video_st->metadata, "timecode", NULL, 0))) {
int size;
const uint8_t *side_metadata = av_packet_get_side_data(pkt, AV_PKT_DATA_STRINGS_METADATA, &size);
if (side_metadata) {
if (av_packet_unpack_dictionary(side_metadata, size, &ctx->video_st->metadata) < 0)
av_log(avctx, AV_LOG_ERROR, "Unable to set timecode\n");
}
}
return 0;
}