C++ (Cpp) gst_vaapidecode_push_all_decoded_frames示例

示例#1

文件： gstvaapidecode.c 项目： DarkLighters/gstreamer-vaapi

static GstFlowReturn
gst_vaapidecode_drain (GstVideoDecoder * vdec)
{
  GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);

  if (!decode->decoder)
    return GST_FLOW_NOT_NEGOTIATED;

  return gst_vaapidecode_push_all_decoded_frames (decode);
}

示例#2

文件： gstvaapidecode.c 项目： zzoon/gstreamer-vaapi

static GstFlowReturn
gst_vaapidecode_drain (GstVideoDecoder * vdec)
{
  GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);

  if (!decode->decoder)
    return GST_FLOW_NOT_NEGOTIATED;

  GST_LOG_OBJECT (decode, "drain");

  gst_vaapidecode_flush_output_adapter (decode);
  return gst_vaapidecode_push_all_decoded_frames (decode);
}

示例#3

文件： gstvaapidecode.c 项目： DarkLighters/gstreamer-vaapi

static GstFlowReturn
gst_vaapidecode_finish (GstVideoDecoder * vdec)
{
  GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
  gboolean flushed;
  GstFlowReturn ret;

  if (!decode->decoder)
    return GST_FLOW_OK;

  flushed = gst_vaapidecode_internal_flush (vdec);
  ret = gst_vaapidecode_push_all_decoded_frames (decode);
  if (!flushed)
    return GST_FLOW_ERROR;
  return ret;
}

示例#4

文件： gstvaapidecode.c 项目： zzoon/gstreamer-vaapi

static GstFlowReturn
gst_vaapidecode_finish (GstVideoDecoder * vdec)
{
  GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
  GstVaapiDecoderStatus status;
  GstFlowReturn ret;

  if (!decode->decoder)
    return GST_FLOW_OK;

  gst_vaapidecode_flush_output_adapter (decode);
  status = gst_vaapi_decoder_flush (decode->decoder);
  ret = gst_vaapidecode_push_all_decoded_frames (decode);
  if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
    goto error_decoder_flush;
  return ret;

  /* ERRORS: */
error_decoder_flush:
  {
    GST_WARNING_OBJECT (decode, "failed to flush decoder (status %d)", status);
    return GST_FLOW_ERROR;
  }
}

示例#5

文件： gstvaapidecode.c 项目： zzoon/gstreamer-vaapi

static GstFlowReturn
gst_vaapidecode_handle_frame (GstVideoDecoder * vdec,
    GstVideoCodecFrame * frame)
{
  GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
  GstVaapiDecoderStatus status;
  GstFlowReturn ret;

  if (!decode->input_state)
    goto not_negotiated;

  /* Decode current frame */
  for (;;) {
    status = gst_vaapi_decoder_decode (decode->decoder, frame);
    if (status == GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE) {
      /* Make sure that there are no decoded frames waiting in the
         output queue. */
      ret = gst_vaapidecode_push_all_decoded_frames (decode);
      if (ret != GST_FLOW_OK)
        goto error_push_all_decoded_frames;

      g_mutex_lock (&decode->surface_ready_mutex);
      if (gst_vaapi_decoder_check_status (decode->decoder) ==
          GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE)
        g_cond_wait (&decode->surface_ready, &decode->surface_ready_mutex);
      g_mutex_unlock (&decode->surface_ready_mutex);
      continue;
    }
    if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
      goto error_decode;
    break;
  }

  /* Note that gst_vaapi_decoder_decode cannot return success without
     completing the decode and pushing all decoded frames into the output
     queue */
  return gst_vaapidecode_push_all_decoded_frames (decode);

  /* ERRORS */
error_push_all_decoded_frames:
  {
    GST_ERROR ("push loop error while decoding %d", ret);
    gst_video_decoder_drop_frame (vdec, frame);
    return ret;
  }
error_decode:
  {
    GST_ERROR ("decode error %d", status);
    switch (status) {
      case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC:
      case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE:
      case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT:
        ret = GST_FLOW_NOT_SUPPORTED;
        break;
      default:
        GST_VIDEO_DECODER_ERROR (vdec, 1, STREAM, DECODE, ("Decoding error"),
            ("Decode error %d", status), ret);
        break;
    }
    gst_video_decoder_drop_frame (vdec, frame);
    return ret;
  }
not_negotiated:
  {
    GST_ERROR_OBJECT (decode, "not negotiated");
    ret = GST_FLOW_NOT_NEGOTIATED;
    gst_video_decoder_drop_frame (vdec, frame);
    return ret;
  }
}