static GstFlowReturn
theora_parse_drain_queue_prematurely (GstTheoraParse * parse)
{
GstFlowReturn ret = GST_FLOW_OK;
/* got an EOS event, make sure to push out any buffers that were in the queue
* -- won't normally be the case, but this catches the
* didn't-get-a-granulepos-on-the-last-packet case. Assuming a continuous
* stream. */
GST_DEBUG_OBJECT (parse, "got EOS, draining queue");
/* if we get an eos before pushing the streamheaders, drain our events before
* eos */
theora_parse_drain_event_queue (parse);
while (!g_queue_is_empty (parse->buffer_queue)) {
GstBuffer *buf;
buf = GST_BUFFER_CAST (g_queue_pop_head (parse->buffer_queue));
parse->prev_frame++;
if (is_keyframe (buf))
/* we have a keyframe */
parse->prev_keyframe = parse->prev_frame;
else
GST_BUFFER_FLAGS (buf) |= GST_BUFFER_FLAG_DELTA_UNIT;
if (parse->prev_keyframe < 0) {
if (GST_BUFFER_OFFSET_END_IS_VALID (buf)) {
parse_granulepos (parse, GST_BUFFER_OFFSET_END (buf),
&parse->prev_keyframe, NULL);
} else {
/* No previous keyframe known; can't extract one from this frame. That
* means we can't do any valid output for this frame, just continue to
* the next frame.
*/
gst_buffer_unref (buf);
continue;
}
}
ret = theora_parse_push_buffer (parse, buf, parse->prev_keyframe,
parse->prev_frame);
if (ret != GST_FLOW_OK)
goto done;
}
done:
return ret;
}
static GstFlowReturn
theora_parse_queue_buffer (GstTheoraParse * parse, GstBuffer * buf)
{
GstFlowReturn ret = GST_FLOW_OK;
buf = gst_buffer_make_writable (buf);
g_queue_push_tail (parse->buffer_queue, buf);
if (GST_BUFFER_OFFSET_END_IS_VALID (buf)) {
if (parse->prev_keyframe < 0) {
parse_granulepos (parse, GST_BUFFER_OFFSET_END (buf),
&parse->prev_keyframe, NULL);
}
ret = theora_parse_drain_queue (parse, GST_BUFFER_OFFSET_END (buf));
}
return ret;
}
