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videoencoder: use oldest frame PTS to estimate missing outgoing DTS

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This commit is contained in:
Mark Nauwelaerts 2012-09-26 16:31:27 +02:00
parent d247301aec
commit dbc89e3ab6
1 changed files with 11 additions and 0 deletions
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11
gst-libs/gst/video/gstvideoencoder.c
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@ -1757,6 +1757,17 @@ gst_video_encoder_finish_frame (GstVideoEncoder * encoder,
GST_BUFFER_FLAG_SET (frame->output_buffer, GST_BUFFER_FLAG_DELTA_UNIT);
}
/* DTS is expected monotone ascending, so a good guess is the lowest PTS
* of all pending frames, i.e. the oldest frame's PTS (all being OK) */
if (!GST_CLOCK_TIME_IS_VALID (frame->dts) && encoder->priv->frames) {
GstVideoCodecFrame *oframe = encoder->priv->frames->data;
frame->dts = oframe->pts;
GST_DEBUG_OBJECT (encoder,
"no valid DTS, using oldest frame's PTS %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->pts));
}
frame->distance_from_sync = priv->distance_from_sync;
priv->distance_from_sync++;