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avvidenc: pass Closed Caption metadata to libav

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This commit is contained in:
Mathieu Duponchelle 2019-03-23 00:24:25 +01:00
parent ef8a1bdd90
commit be579c426d
1 changed files with 21 additions and 0 deletions
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21
ext/libav/gstavvidenc.c
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@ -517,6 +517,25 @@ stereo_gst_to_av (GstVideoMultiviewMode mview_mode)
return AV_STEREO3D_2D;
}
static void
gst_ffmpegvidenc_add_cc (GstBuffer * buffer, AVFrame * picture)
{
GstVideoCaptionMeta *cc_meta;
gpointer iter = NULL;
while ((cc_meta =
(GstVideoCaptionMeta *) gst_buffer_iterate_meta_filtered (buffer,
&iter, GST_VIDEO_CAPTION_META_API_TYPE))) {
AVFrameSideData *sd;
if (cc_meta->caption_type != GST_VIDEO_CAPTION_TYPE_CEA708_RAW)
continue;
sd = av_frame_new_side_data (picture, AV_FRAME_DATA_A53_CC, cc_meta->size);
memcpy (sd->data, cc_meta->data, cc_meta->size);
}
}
static GstFlowReturn
gst_ffmpegvidenc_send_frame (GstFFMpegVidEnc * ffmpegenc,
GstVideoCodecFrame * frame)
@ -533,6 +552,8 @@ gst_ffmpegvidenc_send_frame (GstFFMpegVidEnc * ffmpegenc,
picture = ffmpegenc->picture;
gst_ffmpegvidenc_add_cc (frame->input_buffer, picture);
if (ffmpegenc->context->flags & (AV_CODEC_FLAG_INTERLACED_DCT |
AV_CODEC_FLAG_INTERLACED_ME)) {
picture->interlaced_frame = TRUE;