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;
}
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;
}
static GstStateChangeReturn
gst_vtdec_change_state (GstElement * element, GstStateChange transition)
{
GstVTDec *self = GST_VTDEC_CAST (element);
GError *error = NULL;
GstStateChangeReturn ret;
if (transition == GST_STATE_CHANGE_NULL_TO_READY) {
self->ctx = gst_core_media_ctx_new (GST_API_CORE_VIDEO | GST_API_CORE_MEDIA
| GST_API_VIDEO_TOOLBOX, &error);
if (error != NULL)
goto api_error;
self->cur_outbufs = g_ptr_array_new ();
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (transition == GST_STATE_CHANGE_READY_TO_NULL) {
gst_vtdec_destroy_session (self, &self->session);
self->ctx->cm->FigFormatDescriptionRelease (self->fmt_desc);
self->fmt_desc = NULL;
gst_video_info_init (&self->vinfo);
g_ptr_array_free (self->cur_outbufs, TRUE);
self->cur_outbufs = NULL;
g_object_unref (self->ctx);
self->ctx = NULL;
}
return ret;
api_error:
{
GST_ELEMENT_ERROR (self, RESOURCE, FAILED, ("API error"),
("%s", error->message));
g_clear_error (&error);
return GST_STATE_CHANGE_FAILURE;
}
}
static GstFlowReturn
gst_vtdec_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstVTDec *self = GST_VTDEC_CAST (parent);
if (!gst_vtdec_is_negotiated (self))
goto not_negotiated;
if (self->session == NULL)
goto pending_caps;
return gst_vtdec_decode_buffer (self, buf);
not_negotiated:
GST_DEBUG_OBJECT (self, "chain called while not negotiated");
gst_buffer_unref (buf);
return GST_FLOW_NOT_NEGOTIATED;
pending_caps:
gst_buffer_unref (buf);
GST_DEBUG_OBJECT (self, "dropped buffer %p (waiting for complete caps)", buf);
return GST_FLOW_OK;
}
static gboolean
gst_vtdec_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstVTDec *self = GST_VTDEC_CAST (parent);
gboolean forward = TRUE;
gboolean res = TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
res = gst_vtdec_sink_setcaps (self, caps);
}
default:
break;
}
if (forward)
res = gst_pad_event_default (pad, parent, event);
return res;
}
