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videodecoder: Post QoS when we drop because of QoS

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At the moment, we only posted QoS messages when frame_drop() was
called, but not in finish_frame() when QoS triggered a late push.
This should fix applications that tries to account the dropped
frames. We also emit a warning on drops so it's more clear what is
happening.
This commit is contained in:
Nicolas Dufresne 2018-10-02 11:09:33 -04:00 committed by GStreamer Merge Bot
parent b418b4b6ec
commit 1570314609
1 changed files with 32 additions and 26 deletions

58
gst-libs/gst/video/gstvideodecoder.c
View file

@ -2812,34 +2812,14 @@ gst_video_decoder_release_frame (GstVideoDecoder * dec,
gst_video_codec_frame_unref (frame);
}
/**
* gst_video_decoder_drop_frame:
* @dec: a #GstVideoDecoder
* @frame: (transfer full): the #GstVideoCodecFrame to drop
*
* Similar to gst_video_decoder_finish_frame(), but drops @frame in any
* case and posts a QoS message with the frame's details on the bus.
* In any case, the frame is considered finished and released.
*
* Returns: a #GstFlowReturn, usually GST_FLOW_OK.
*/
GstFlowReturn
gst_video_decoder_drop_frame (GstVideoDecoder * dec, GstVideoCodecFrame * frame)
/* called with STREAM_LOCK */
static void
gst_video_decoder_post_qos_drop (GstVideoDecoder * dec, GstClockTime timestamp)
{
GstClockTime stream_time, jitter, earliest_time, qostime, timestamp;
GstClockTime stream_time, jitter, earliest_time, qostime;
GstSegment *segment;
GstMessage *qos_msg;
gdouble proportion;
GST_LOG_OBJECT (dec, "drop frame %p", frame);
GST_VIDEO_DECODER_STREAM_LOCK (dec);
gst_video_decoder_prepare_finish_frame (dec, frame, TRUE);
GST_DEBUG_OBJECT (dec, "dropping frame %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->pts));
dec->priv->dropped++;
/* post QoS message */
@ -2848,7 +2828,6 @@ gst_video_decoder_drop_frame (GstVideoDecoder * dec, GstVideoCodecFrame * frame)
earliest_time = dec->priv->earliest_time;
GST_OBJECT_UNLOCK (dec);
timestamp = frame->pts;
segment = &dec->output_segment;
if (G_UNLIKELY (segment->format == GST_FORMAT_UNDEFINED))
segment = &dec->input_segment;
@ -2863,6 +2842,32 @@ gst_video_decoder_drop_frame (GstVideoDecoder * dec, GstVideoCodecFrame * frame)
gst_message_set_qos_stats (qos_msg, GST_FORMAT_BUFFERS,
dec->priv->processed, dec->priv->dropped);
gst_element_post_message (GST_ELEMENT_CAST (dec), qos_msg);
}
/**
* gst_video_decoder_drop_frame:
* @dec: a #GstVideoDecoder
* @frame: (transfer full): the #GstVideoCodecFrame to drop
*
* Similar to gst_video_decoder_finish_frame(), but drops @frame in any
* case and posts a QoS message with the frame's details on the bus.
* In any case, the frame is considered finished and released.
*
* Returns: a #GstFlowReturn, usually GST_FLOW_OK.
*/
GstFlowReturn
gst_video_decoder_drop_frame (GstVideoDecoder * dec, GstVideoCodecFrame * frame)
{
GST_LOG_OBJECT (dec, "drop frame %p", frame);
GST_VIDEO_DECODER_STREAM_LOCK (dec);
gst_video_decoder_prepare_finish_frame (dec, frame, TRUE);
GST_DEBUG_OBJECT (dec, "dropping frame %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->pts));
gst_video_decoder_post_qos_drop (dec, frame->pts);
/* now free the frame */
gst_video_decoder_release_frame (dec, frame);
@ -3129,11 +3134,12 @@ gst_video_decoder_clip_and_push_buf (GstVideoDecoder * decoder, GstBuffer * buf)
GstClockTime deadline =
gst_segment_to_running_time (segment, GST_FORMAT_TIME, cstart);
if (GST_CLOCK_TIME_IS_VALID (deadline) && deadline < priv->earliest_time) {
GST_DEBUG_OBJECT (decoder,
GST_WARNING_OBJECT (decoder,
"Dropping frame due to QoS. start:%" GST_TIME_FORMAT " deadline:%"
GST_TIME_FORMAT " earliest_time:%" GST_TIME_FORMAT,
GST_TIME_ARGS (start), GST_TIME_ARGS (deadline),
GST_TIME_ARGS (priv->earliest_time));
gst_video_decoder_post_qos_drop (decoder, cstart);
gst_buffer_unref (buf);
priv->discont = TRUE;
goto done;