Sometimes splitmuxsink has high cpu load and prints "redistribute latency" message.

[sonntex]

Do somebody have any ideas? What kind of logs should I attach?

On Fri, Nov 25, 2016 at 4:20 PM, sonntex <sonntex at gmail.com> wrote:

> I have one usb video camera, that works with splitmuxsink very strange.
>
> This pipeline works well (writes data to mp4 file immediately):
>
> # timeout -s INT 60 gst-launch-1.0 \
> >       v4l2src device="/dev/video0" do-timestamp=true \
> >     !     image/jpeg,width=640,height=480,framerate=30/1 \
> >     ! jpegparse \
> >     ! omxmjpegdec \
> >     ! clockoverlay time-format="%Y-%m-%d %T" \
> >     ! videoconvert \
> >     ! omxh264enc target-bitrate=2097152 control-rate=variable
> interval-intraframes=30 \
> >     !     video/x-h264,profile=baseline \
> >     ! h264parse \
> >     ! mp4mux \
> >     ! filesink location="video.mp4"
> Setting pipeline to PAUSED ...
> Pipeline is live and does not need PREROLL ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> handling interrupt.
> Interrupt: Stopping pipeline ...
> Execution ended after 0:00:59.751358987
> Setting pipeline to PAUSED ...
> Setting pipeline to READY ...
> Setting pipeline to NULL ...
> Freeing pipeline ...
>
> # ls -l video.mp4
> -rw-r--r-- 1 root root 733678 Jan  1 01:12 video.mp4
>
> This pipeline loads cpu until first "redistribute latency" message (does
> not write any data to mp4 file during this time) and then has strange
> behavior:
>
> # timeout -s INT 300 gst-launch-1.0 \
> >       v4l2src device="/dev/video0" do-timestamp=true \
> >     !     image/jpeg,width=640,height=480,framerate=30/1 \
> >     ! jpegparse \
> >     ! omxmjpegdec \
> >     ! clockoverlay time-format="%Y-%m-%d %T" \
> >     ! videoconvert \
> >     ! omxh264enc target-bitrate=2097152 control-rate=variable
> interval-intraframes=30 \
> >     !     video/x-h264,profile=baseline \
> >     ! h264parse \
> >     ! splitmuxsink location="video-chunk-%02d.mp4"
> max-size-time=15000000000
> Setting pipeline to PAUSED ...
> Pipeline is live and does not need PREROLL ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> Redistribute latency...
> Redistribute latency...
> Redistribute latency...
> Redistribute latency...
> handling interrupt.
> Interrupt: Stopping pipeline ...
> Execution ended after 0:04:59.739565719
> Setting pipeline to PAUSED ...
> Setting pipeline to READY ...
> Setting pipeline to NULL ...
> Freeing pipeline ...
>
> # ls -l video-chunk-*.mp4
> -rw-r--r-- 1 root root 1373643 Jan  1 01:17 video-chunk-00.mp4
> -rw-r--r-- 1 root root 1339636 Jan  1 01:19 video-chunk-01.mp4
> -rw-r--r-- 1 root root  378033 Jan  1 01:20 video-chunk-02.mp4
>
> As you can see, distance between creation time of the chunks is longer
> than 15 seconds.
>
>
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