C++ (Cpp) gst_core_video_buffer_new Examples

Example #1

File: vtdec.c Project: cbetz421/gst-plugins-bad

static void
gst_vtdec_enqueue_frame (void *data1, void *data2, VTStatus result,
    VTDecodeInfoFlags info, CVBufferRef cvbuf, CMTime pts, CMTime duration)
{
  GstVTDec *self = GST_VTDEC_CAST (data1);
  GstBuffer *src_buf = GST_BUFFER (data2);
  GstBuffer *buf;

  if (result != kVTSuccess) {
    GST_ERROR_OBJECT (self, "Error decoding frame %d", result);
    goto beach;
  }

  if (kVTDecodeInfo_FrameDropped & info) {
    GST_WARNING_OBJECT (self, "Frame dropped");
    goto beach;
  }

  buf = gst_core_video_buffer_new (cvbuf, &self->vinfo);
  gst_buffer_copy_into (buf, src_buf, GST_BUFFER_COPY_METADATA, 0, -1);
  GST_BUFFER_PTS (buf) = pts.value;
  GST_BUFFER_DURATION (buf) = duration.value;

  g_queue_push_head (self->cur_outbufs, buf);
  if (GST_BUFFER_PTS (src_buf) <= GST_BUFFER_DTS (src_buf)) {
    GST_LOG_OBJECT (self, "Flushing interal queue of buffers");
    self->flush = TRUE;
  } else {
    GST_LOG_OBJECT (self, "Queuing buffer");
  }

beach:
  return;
}

Example #2

File: vtdec.c Project: shakin/gst-plugins-bad

static void
gst_vtdec_session_output_callback (void *decompression_output_ref_con,
    void *source_frame_ref_con, OSStatus status, VTDecodeInfoFlags info_flags,
    CVImageBufferRef image_buffer, CMTime pts, CMTime duration)
{
  GstVtdec *vtdec = (GstVtdec *) decompression_output_ref_con;
  GstVideoCodecFrame *frame = (GstVideoCodecFrame *) source_frame_ref_con;
  GstBuffer *buf;
  GstVideoCodecState *state;

  GST_LOG_OBJECT (vtdec, "got output frame %p %d and VT buffer %p", frame,
      frame->decode_frame_number, image_buffer);

  if (status != noErr) {
    GST_ERROR_OBJECT (vtdec, "Error decoding frame %d", (int) status);
    goto drop;
  }

  if (image_buffer == NULL) {
    if (info_flags & kVTDecodeInfo_FrameDropped)
      GST_DEBUG_OBJECT (vtdec, "Frame dropped by video toolbox");
    else
      GST_DEBUG_OBJECT (vtdec, "Decoded frame is NULL");
    goto drop;
  }

  /* FIXME: use gst_video_decoder_allocate_output_buffer */
  state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (vtdec));
  if (state == NULL) {
    GST_WARNING_OBJECT (vtdec, "Output state not configured, release buffer");
    /* release as this usually means that the baseclass isn't ready to do
     * the QoS that _drop requires and will lead to an assertion with the
     * segment.format being undefined */
    goto release;
  }
  buf =
      gst_core_video_buffer_new (image_buffer, &state->info,
      vtdec->texture_cache == NULL);
  gst_video_codec_state_unref (state);

  GST_BUFFER_PTS (buf) = pts.value;
  GST_BUFFER_DURATION (buf) = duration.value;
  frame->output_buffer = buf;
  g_async_queue_push_sorted (vtdec->reorder_queue, frame,
      sort_frames_by_pts, NULL);

  return;

drop:
  GST_WARNING_OBJECT (vtdec, "Frame dropped %p %d", frame,
      frame->decode_frame_number);
  gst_video_decoder_drop_frame (GST_VIDEO_DECODER (vtdec), frame);
  return;

release:
  GST_WARNING_OBJECT (vtdec, "Frame released %p %d", frame,
      frame->decode_frame_number);
  gst_video_decoder_release_frame (GST_VIDEO_DECODER (vtdec), frame);
  return;
}

Example #3

File: vtdec.c Project: luisbg/gst-plugins-bad

static void
gst_vtdec_session_output_callback (void *decompression_output_ref_con,
    void *source_frame_ref_con, OSStatus status, VTDecodeInfoFlags info_flags,
    CVImageBufferRef image_buffer, CMTime pts, CMTime duration)
{
  GstVtdec *vtdec = (GstVtdec *) decompression_output_ref_con;
  GstVideoCodecFrame *frame = (GstVideoCodecFrame *) source_frame_ref_con;
  GstVideoCodecState *state;

  GST_LOG_OBJECT (vtdec, "got output frame %p %d and VT buffer %p", frame,
      frame->decode_frame_number, image_buffer);

  frame->output_buffer = NULL;

  if (status != noErr) {
    GST_ERROR_OBJECT (vtdec, "Error decoding frame %d", (int) status);
  }

  if (image_buffer) {
    GstBuffer *buf = NULL;

    /* FIXME: use gst_video_decoder_allocate_output_buffer */
    state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (vtdec));
    if (state == NULL) {
      GST_WARNING_OBJECT (vtdec, "Output state not configured, release buffer");
      frame->flags &= VTDEC_FRAME_FLAG_SKIP;
    } else {
      buf =
          gst_core_video_buffer_new (image_buffer, &state->info,
          vtdec->texture_cache);
      gst_video_codec_state_unref (state);
      GST_BUFFER_PTS (buf) = pts.value;
      GST_BUFFER_DURATION (buf) = duration.value;
      frame->output_buffer = buf;
    }
  } else {
    if (info_flags & kVTDecodeInfo_FrameDropped) {
      GST_DEBUG_OBJECT (vtdec, "Frame dropped by video toolbox %p %d",
          frame, frame->decode_frame_number);
      frame->flags |= VTDEC_FRAME_FLAG_DROP;
    } else {
      GST_DEBUG_OBJECT (vtdec, "Decoded frame is NULL");
      frame->flags |= VTDEC_FRAME_FLAG_SKIP;
    }
  }

  g_async_queue_push_sorted (vtdec->reorder_queue, frame,
      sort_frames_by_pts, NULL);
}

Example #4

File: vtdec.c Project: lubing521/gst-embedded-builder

static void
gst_vtdec_enqueue_frame (void *data, gsize unk1, VTStatus result, gsize unk2,
    CVBufferRef cvbuf)
{
  GstVTDec *self = GST_VTDEC_CAST (data);
  GstBuffer *buf;

  if (result != kVTSuccess)
    goto beach;

  buf = gst_core_video_buffer_new (self->ctx, cvbuf, &self->vinfo);
  gst_buffer_copy_into (buf, self->cur_inbuf, GST_BUFFER_COPY_METADATA, 0, -1);

  g_ptr_array_add (self->cur_outbufs, buf);

beach:
  return;
}