C++ (Cpp) gst_vaapi_decoder_get_frame Examples

Example #1

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

static GstFlowReturn
gst_vaapidecode_push_all_decoded_frames (GstVaapiDecode * decode)
{
  GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
  GstVaapiDecoderStatus status;
  GstVideoCodecFrame *out_frame;
  GstFlowReturn ret;

  for (;;) {
    status = gst_vaapi_decoder_get_frame (decode->decoder, &out_frame);

    switch (status) {
      case GST_VAAPI_DECODER_STATUS_SUCCESS:
        /* GstVaapiDecode's queue adds an extra reference */
        gst_video_codec_frame_unref (out_frame);
        ret = gst_vaapidecode_push_decoded_frame (vdec, out_frame);
        if (ret != GST_FLOW_OK)
          return ret;
        break;
      case GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA:
        return GST_FLOW_OK;
      default:
        GST_VIDEO_DECODER_ERROR (vdec, 1, STREAM, DECODE, ("Decoding failed"),
            ("Unknown decoding error"), ret);
        return ret;
    }
  }
  g_assert_not_reached ();
}

Example #2

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

static GstFlowReturn
gst_vaapidecode_push_all_decoded_frames (GstVaapiDecode * decode)
{
  GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
  GstVaapiDecoderStatus status;
  GstVideoCodecFrame *out_frame;
  GstFlowReturn ret;

  for (;;) {
    status = gst_vaapi_decoder_get_frame (decode->decoder, &out_frame);

    switch (status) {
      case GST_VAAPI_DECODER_STATUS_SUCCESS:
        ret = gst_vaapidecode_push_decoded_frame (vdec, out_frame);
        if (ret != GST_FLOW_OK)
          return ret;
        break;
      case GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA:
        /* Delayed the pool re-negotiation untill we push all decoded (and queued)
         * frames downstream. Otherwise for the multi-resolution videos, the
         * GstVideoVideoMemory will be having wrong resolution.
         * commit 6eba201f3252eba6a99ab7da7a4c662091a3e884 */
        if (!gst_vaapidecode_negotiate (decode))
          return GST_FLOW_ERROR;
        return GST_FLOW_OK;
      default:
        GST_VIDEO_DECODER_ERROR (vdec, 1, STREAM, DECODE, ("Decoding failed"),
            ("Unknown decoding error"), ret);
        return ret;
    }
  }
  g_assert_not_reached ();
}