void QosMessage::setStats(Format format, quint64 processed, quint64 dropped)
{
gst_message_set_qos_stats(object<GstMessage>(), static_cast<GstFormat>(format), processed,
dropped);
}
static GstFlowReturn
theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
GstClockTime outtime, GstClockTime outdur)
{
/* normal data packet */
th_ycbcr_buffer buf;
GstBuffer *out;
gboolean keyframe;
GstFlowReturn result;
ogg_int64_t gp;
if (G_UNLIKELY (!dec->have_header))
goto not_initialized;
/* get timestamp and durations */
if (outtime == -1)
outtime = dec->last_timestamp;
if (outdur == -1)
outdur = gst_util_uint64_scale_int (GST_SECOND, dec->info.fps_denominator,
dec->info.fps_numerator);
/* calculate expected next timestamp */
if (outtime != -1 && outdur != -1)
dec->last_timestamp = outtime + outdur;
/* the second most significant bit of the first data byte is cleared
* for keyframes. We can only check it if it's not a zero-length packet. */
keyframe = packet->bytes && ((packet->packet[0] & 0x40) == 0);
if (G_UNLIKELY (keyframe)) {
GST_DEBUG_OBJECT (dec, "we have a keyframe");
dec->need_keyframe = FALSE;
} else if (G_UNLIKELY (dec->need_keyframe)) {
goto dropping;
}
GST_DEBUG_OBJECT (dec, "parsing data packet");
/* this does the decoding */
if (G_UNLIKELY (th_decode_packetin (dec->decoder, packet, &gp) < 0))
goto decode_error;
if (outtime != -1) {
gboolean need_skip;
GstClockTime running_time;
GstClockTime earliest_time;
gdouble proportion;
/* qos needs to be done on running time */
running_time = gst_segment_to_running_time (&dec->segment, GST_FORMAT_TIME,
outtime);
GST_OBJECT_LOCK (dec);
proportion = dec->proportion;
earliest_time = dec->earliest_time;
/* check for QoS, don't perform the last steps of getting and
* pushing the buffers that are known to be late. */
need_skip = earliest_time != -1 && running_time <= earliest_time;
GST_OBJECT_UNLOCK (dec);
if (need_skip) {
GstMessage *qos_msg;
guint64 stream_time;
gint64 jitter;
GST_DEBUG_OBJECT (dec, "skipping decoding: qostime %"
GST_TIME_FORMAT " <= %" GST_TIME_FORMAT,
GST_TIME_ARGS (running_time), GST_TIME_ARGS (earliest_time));
dec->dropped++;
stream_time =
gst_segment_to_stream_time (&dec->segment, GST_FORMAT_TIME, outtime);
jitter = GST_CLOCK_DIFF (running_time, earliest_time);
qos_msg =
gst_message_new_qos (GST_OBJECT_CAST (dec), FALSE, running_time,
stream_time, outtime, outdur);
gst_message_set_qos_values (qos_msg, jitter, proportion, 1000000);
gst_message_set_qos_stats (qos_msg, GST_FORMAT_BUFFERS,
dec->processed, dec->dropped);
gst_element_post_message (GST_ELEMENT_CAST (dec), qos_msg);
goto dropping_qos;
}
}
/* this does postprocessing and set up the decoded frame
* pointers in our yuv variable */
if (G_UNLIKELY (th_decode_ycbcr_out (dec->decoder, buf) < 0))
goto no_yuv;
if (G_UNLIKELY ((buf[0].width != dec->info.frame_width)
|| (buf[0].height != dec->info.frame_height)))
goto wrong_dimensions;
result = theora_handle_image (dec, buf, &out);
if (result != GST_FLOW_OK)
return result;
GST_BUFFER_OFFSET (out) = dec->frame_nr;
if (dec->frame_nr != -1)
dec->frame_nr++;
GST_BUFFER_OFFSET_END (out) = dec->frame_nr;
GST_BUFFER_TIMESTAMP (out) = outtime;
GST_BUFFER_DURATION (out) = outdur;
dec->processed++;
if (dec->segment.rate >= 0.0)
result = theora_dec_push_forward (dec, out);
else
result = theora_dec_push_reverse (dec, out);
return result;
/* ERRORS */
not_initialized:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("no header sent yet"));
return GST_FLOW_ERROR;
}
dropping:
{
GST_WARNING_OBJECT (dec, "dropping frame because we need a keyframe");
dec->discont = TRUE;
return GST_FLOW_OK;
}
dropping_qos:
{
if (dec->frame_nr != -1)
dec->frame_nr++;
dec->discont = TRUE;
GST_WARNING_OBJECT (dec, "dropping frame because of QoS");
return GST_FLOW_OK;
}
decode_error:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("theora decoder did not decode data packet"));
return GST_FLOW_ERROR;
}
no_yuv:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("couldn't read out YUV image"));
return GST_FLOW_ERROR;
}
wrong_dimensions:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, FORMAT,
(NULL), ("dimensions of image do not match header"));
return GST_FLOW_ERROR;
}
}
