static GstFlowReturn
daala_dec_decode_buffer (GstDaalaDec * dec, GstBuffer * buf,
GstVideoCodecFrame * frame)
{
ogg_packet packet;
GstFlowReturn result = GST_FLOW_OK;
GstMapInfo minfo;
/* make ogg_packet out of the buffer */
gst_buffer_map (buf, &minfo, GST_MAP_READ);
packet.packet = minfo.data;
packet.bytes = minfo.size;
packet.granulepos = -1;
packet.packetno = 0; /* we don't really care */
packet.b_o_s = dec->have_header ? 0 : 1;
/* EOS does not matter for the decoder */
packet.e_o_s = 0;
GST_LOG_OBJECT (dec, "decode buffer of size %ld", packet.bytes);
GST_DEBUG_OBJECT (dec, "header=%02x", packet.bytes ? packet.packet[0] : -1);
/* switch depending on packet type. A zero byte packet is always a data
* packet; we don't dereference it in that case. */
if (packet.bytes && packet.packet[0] & 0x80) {
if (dec->have_header) {
GST_WARNING_OBJECT (GST_OBJECT (dec), "Ignoring header");
GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
result = GST_CUSTOM_FLOW_DROP;
goto done;
}
result = daala_handle_header_packet (dec, &packet);
/* header packets are not meant to be displayed */
/* FIXME : This is a temporary hack. The proper fix would be to
* not call _finish_frame() for these types of packets */
GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
} else {
result = daala_handle_data_packet (dec, &packet, frame);
}
done:
gst_buffer_unmap (buf, &minfo);
return result;
}
static void
drop_frame (GstVaapiDecoder * decoder, GstVideoCodecFrame * frame)
{
GST_DEBUG ("drop frame %d", frame->system_frame_number);
/* no surface proxy */
gst_video_codec_frame_set_user_data (frame, NULL, NULL);
frame->pts = GST_CLOCK_TIME_NONE;
GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
g_async_queue_push (decoder->frames, gst_video_codec_frame_ref (frame));
}
