PTS timestamp N/A

[Nicolas Dufresne]

Le jeu. 11 avr. 2019 07 h 40, joakim <joakim.magnusson at spiideo.com> a
écrit :

> Hi,
> I'm developing a c application with the following pipeline:
> rtspsrc->queue->rtph264depay->h264parse->mpegtsmux->hlssink
>
> Everything works as expected except one thing. The pts (presentation time)
> value of each frame seems correct most of the time, but I get frames with a
> pts value of N/A at even intervals. If I plot the values I get this graph:
> <
> http://gstreamer-devel.966125.n4.nabble.com/file/t378727/video_from_mac.png>
>
> (I know the y-axis is unreadable) The spikes shows when I get a frame with
> N/A as pts value.
>
> I'm wondering what could be the cause of this problem?
>

Can you clarify were the frame PTS is read from ? Could also be on the
player if it's read after the decoder. Be aware that historically, no
timestamp means same timestamp as previous frame in GStreamer. But we try
and avoid this method as much as possible.


>
>
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