omxh264 video encode problems

[Christian Isenberg]

Here is a sample video. Note that the beginning is slow because of the
webcam. This is not a problem.
https://dl.dropboxusercontent.com/u/5610600/1234_c0.mp4

I've tried to play it on my desktop using vaapi h264 decoder but had no
success. Only VLC and Chrome browser can open it successfully.

Em ter, 26 de jul de 2016 às 11:27, Digits <info at digits.tv> escreveu:

> I have a RPi2 available for testing, I'll check with it if you can link to
> a sample file.
>
> Regards,
>
> Dave.
>
> On 26/07/2016 9:50 PM, christian.isenberg wrote:
>
> Hello everybody,
>
> Since I could't find anything about this problem I had to create a new post.
> So I'm using a RaspberryPi to generate h264 videos from a sequence of jpegs
> that I get from a webcam.
>
> *this is my current pipe:*
> gst-launch-1.0 -e v4l2src do-timestamp=true device=/dev/video0 ! videorate
> ! image/jpeg,width=640,height=480,framerate=15/1 ! jpegparse ! jpegdec
> ! omxh264enc ! video/x-h264,framerate=15/1, speed-preset=medium
> ! h264parse ! mp4mux ! filesink location= video.mp4
>
> It is working like a charm, except that the videos can only be played with
> chrome or VLC.
> What I'm trying is to decode it again using gstreamer afterwards using the
> following pipe:
>
> *gst-launch-1.0 playbin uri=file://PATH_TO_FILE/video.mp4*
>
> And it ends the execution before showing the first frame.
>
> *Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> libva info: VA-API version 0.39.2
> libva info: va_getDriverName() returns 0
> libva info: Trying to open /usr/lib/dri/i965_drv_video.so
> libva info: Found init function __vaDriverInit_0_39
> libva info: va_openDriver() returns 0
> Got context from element 'vaapidecode': gst.vaapi.Display=context,
> gst.vaapi.Display=(GstVaapiDisplay)NULL;
> Redistribute latency...
> Got context from element 'playsink': gst.vaapi.Display=context,
> gst.vaapi.Display=(GstVaapiDisplay)NULL;
> Redistribute latency...
> Pipeline is PREROLLED ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> Got EOS from element "playbin0".
> Execution ended after 0:00:00.000176603
> Setting pipeline to PAUSED ...
> Setting pipeline to READY ...
> Setting pipeline to NULL ...
> Freeing pipeline ...*
>
> I even tried to use qtmux instead of mp4mux, but the results are the same.
> Does anyone had the same problem ?
>
> Thanks so far
>
>
>
>
>
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble.com/omxh264-video-encode-problems-tp4678844.html
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-- 
Christian Isenberg
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