C++ (Cpp) gst_vaapi_decoder_get_frame_with_timeout Examples

Example #1

File: gstvaapidecode.c Project: zzoon/gstreamer-vaapi

static void
gst_vaapidecode_purge (GstVaapiDecode * decode)
{
  GstVaapiDecoderStatus status;

  if (!decode->decoder)
    return;

  status = gst_vaapi_decoder_flush (decode->decoder);
  if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
    GST_INFO_OBJECT (decode, "failed to flush decoder (status %d)", status);

  /* Purge all decoded frames as we don't need them (e.g. flush and close)
   * Releasing the frames is important, otherwise the frames are not
   * freed. */
  do {
    GstVideoCodecFrame *frame = NULL;

    status =
        gst_vaapi_decoder_get_frame_with_timeout (decode->decoder, &frame, 0);
    if (frame) {
      gst_video_decoder_release_frame (GST_VIDEO_DECODER (decode), frame);
      gst_video_codec_frame_unref (frame);
    }
  } while (status == GST_VAAPI_DECODER_STATUS_SUCCESS);
}

Example #2

File: gstvaapidecoder.c Project: GStreamer/gstreamer-vaapi

/**
 * gst_vaapi_decoder_get_frame:
 * @decoder: a #GstVaapiDecoder
 * @out_frame_ptr: the next decoded frame as a #GstVideoCodecFrame
 *
 * On successful return, *@out_frame_ptr contains the next decoded
 * frame available as a #GstVideoCodecFrame. The caller owns this
 * object, so gst_video_codec_frame_unref() shall be called after
 * usage. Otherwise, @GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA is
 * returned if no decoded frame is available.
 *
 * The actual surface is available as a #GstVaapiSurfaceProxy attached
 * to the user-data anchor of the output frame. Ownership of the proxy
 * is transferred to the frame.
 *
 * This is equivalent to gst_vaapi_decoder_get_frame_with_timeout()
 * with a timeout value of zero.
 *
 * Return value: a #GstVaapiDecoderStatus
 */
GstVaapiDecoderStatus
gst_vaapi_decoder_get_frame (GstVaapiDecoder * decoder,
    GstVideoCodecFrame ** out_frame_ptr)
{
  return gst_vaapi_decoder_get_frame_with_timeout (decoder, out_frame_ptr, 0);
}