mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-30 05:31:15 +00:00
Code Issues 1 Projects Releases Wiki Activity

avviddec: do not add 708 caption meta if already exists

Browse source 
(this is only used for CEA 708 raw data). another element
such as mpegvideoparse may have already added the meta.
This commit is contained in:
Aaron Boxer 2019-03-28 14:24:42 -04:00
parent be579c426d
commit b2cc8a57d4
1 changed files with 28 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
ext/libav/gstavviddec.c
View file

@ -1598,12 +1598,35 @@ gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
AVFrameSideData *side_data =
av_frame_get_side_data (ffmpegdec->picture, AV_FRAME_DATA_A53_CC);
if (side_data) {
GST_LOG_OBJECT (ffmpegdec, "Found CC of size %d", side_data->size);
GstVideoCaptionMeta *cc_meta = NULL;
gpointer iter = NULL;
gboolean found_708_raw_meta = FALSE;
GST_LOG_OBJECT (ffmpegdec,
"Found CC side data of type AV_FRAME_DATA_A53_CC, size %d",
side_data->size);
GST_MEMDUMP ("A53 CC", side_data->data, side_data->size);
out_frame->output_buffer =
gst_buffer_make_writable (out_frame->output_buffer);
gst_buffer_add_video_caption_meta (out_frame->output_buffer,
GST_VIDEO_CAPTION_TYPE_CEA708_RAW, side_data->data, side_data->size);
while ((cc_meta = (GstVideoCaptionMeta *)
gst_buffer_iterate_meta_filtered (out_frame->input_buffer, &iter,
GST_VIDEO_CAPTION_META_API_TYPE))) {
if (cc_meta->caption_type != GST_VIDEO_CAPTION_TYPE_CEA708_RAW)
continue;
found_708_raw_meta = TRUE;
break;
}
/* do not add CEA 708 caption meta if it already exists */
if (!found_708_raw_meta) {
out_frame->output_buffer =
gst_buffer_make_writable (out_frame->output_buffer);
gst_buffer_add_video_caption_meta (out_frame->output_buffer,
GST_VIDEO_CAPTION_TYPE_CEA708_RAW, side_data->data,
side_data->size);
} else {
GST_LOG_OBJECT (ffmpegdec,
"CEA 708 caption meta already exists: will not add new caption meta");
}
}
}