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decoder: vp9: Add repeat-frame display handling

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If vp9 frame header come up with show_existing_frame flag set,
we should duplicate the existing decoded frame as current frame to
be displayed.
This commit is contained in:
Sreerenj Balachandran 2015-11-16 18:21:56 +02:00
parent ac8d19dab4
commit 247896884b
1 changed files with 30 additions and 8 deletions
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38
gst-libs/gst/vaapi/gstvaapidecoder_vp9.c
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@ -399,27 +399,49 @@ decode_picture (GstVaapiDecoderVp9 * decoder, const guchar * buf,
GstVaapiPicture *picture;
GstVaapiDecoderStatus status;
guint crop_width = 0, crop_height = 0;
gboolean is_clone_pic = FALSE;
status = ensure_context (decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
return status;
/* Fixme: handle show_existing_frame */
/* if show_exising_frame flag is true, we just need to return
* the existing frame in ref frame array, so creating a clone
* of already decoded frame */
if (frame_hdr->show_existing_frame) {
GstVaapiPicture *existing_frame =
priv->ref_frames[frame_hdr->frame_to_show];
/* Create new picture */
picture = GST_VAAPI_PICTURE_NEW (VP9, decoder);
if (!picture) {
GST_ERROR ("failed to allocate picture");
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
if (!existing_frame) {
GST_ERROR ("Failed to get the existing frame from dpb");
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
}
picture = gst_vaapi_picture_new_clone (existing_frame);
if (!picture) {
GST_ERROR ("Failed to create clone picture");
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
}
is_clone_pic = TRUE;
} else {
/* Create new picture */
picture = GST_VAAPI_PICTURE_NEW (VP9, decoder);
if (!picture) {
GST_ERROR ("failed to allocate picture");
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
}
}
gst_vaapi_picture_replace (&priv->current_picture, picture);
gst_vaapi_picture_unref (picture);
if (is_clone_pic)
return GST_VAAPI_DECODER_STATUS_SUCCESS;
if (frame_hdr->display_size_enabled) {
crop_width = frame_hdr->display_width;
crop_height = frame_hdr->display_height;
} else if (priv->width > frame_hdr->width
|| priv->height > frame_hdr->height) {
} else if (priv->width > frame_hdr->width || priv->height > frame_hdr->height) {
crop_width = frame_hdr->width;
crop_height = frame_hdr->height;
}