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decoder: vp9: Add crop rectangle support.

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Set crop rectange if:
There is display_width and display_height which is different from actual width/height
 or
The changed resolution is less than the actual configured dimension of surfaces
This commit is contained in:
Sreerenj Balachandran 2015-11-13 19:39:56 +02:00
parent a48eebefd6
commit 8ee23ffd96
1 changed files with 19 additions and 0 deletions
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19
gst-libs/gst/vaapi/gstvaapidecoder_vp9.c
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@ -395,8 +395,10 @@ decode_picture (GstVaapiDecoderVp9 * decoder, const guchar * buf,
guint buf_size)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVp9FrameHdr *frame_hdr = &priv->frame_hdr;
GstVaapiPicture *picture;
GstVaapiDecoderStatus status;
guint crop_width = 0, crop_height = 0;
status = ensure_context (decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
@ -413,6 +415,23 @@ decode_picture (GstVaapiDecoderVp9 * decoder, const guchar * buf,
gst_vaapi_picture_replace (&priv->current_picture, picture);
gst_vaapi_picture_unref (picture);
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) {
crop_width = frame_hdr->width;
crop_height = frame_hdr->height;
}
if (crop_width || crop_height) {
GstVaapiRectangle crop_rect;
crop_rect.x = 0;
crop_rect.y = 0;
crop_rect.width = crop_width;
crop_rect.height = crop_height;
gst_vaapi_picture_set_crop_rect (picture, &crop_rect);
}
init_picture (decoder, picture);
if (!fill_picture (decoder, picture))
return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;