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videodecoder: Make sure we have an actually writable buffer when modifying metadata

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avviddec keeps references to the buffers internally for example, in
which case we need to do a shallow copy of the buffer.
This commit is contained in:
Sebastian Dröge 2017-07-24 16:48:17 +03:00
parent 79424411e7
commit ae8d0cf3ac
1 changed files with 4 additions and 4 deletions
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8
gst-libs/gst/video/gstvideodecoder.c
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@ -3010,7 +3010,9 @@ gst_video_decoder_finish_frame (GstVideoDecoder * decoder,
goto done;
}
output_buffer = frame->output_buffer;
/* We need a writable buffer for the metadata changes below */
output_buffer = frame->output_buffer =
gst_buffer_make_writable (frame->output_buffer);
GST_BUFFER_FLAG_UNSET (output_buffer, GST_BUFFER_FLAG_DELTA_UNIT);
@ -3040,9 +3042,7 @@ gst_video_decoder_finish_frame (GstVideoDecoder * decoder,
/* Get an additional ref to the buffer, which is going to be pushed
* downstream, the original ref is owned by the frame
*
* FIXME: clip_and_push_buf() changes buffer metadata but the buffer
* might have a refcount > 1 */
*/
output_buffer = gst_buffer_ref (output_buffer);
/* Release frame so the buffer is writable when we push it downstream