gst-omx decoding H264 from Logitech C920 stream

Peter Maersk-Moller pmaersk at gmail.com
Tue Apr 7 07:25:21 PDT 2015


Hi Paulo.

Unless Google can give you good links to the issue (and help as usch is
then not needed), it probably would help if you exemplified your issue with
the omx decoder and the C920 camera with complete reproducible pipelines
for your setup.

Best regards

On Tue, Apr 7, 2015 at 3:35 PM, Paulo Neves <ptsneves at gmail.com> wrote:

> Hi,
>
> I have been using the omx264dec to decode a stream coming from a camera,
> the Logitech C920 which provides an h264 stream, in a Raspberry PI.
>
> When I try to decode this stream with omx264dec the video is mostly
> corrupted getting a bit better if there is motion in the video.
>
> According to my tests the omx264dec works correctly with Apple's h264
> sample file and it also works well decoding video encoded by omxh264enc but
> not video encoded by x264enc.
>
> On the other hand I have tried decoding the stream of C920 with avdec_h264
> and the output is not corrupted at all, leading me to believe in a omx
> decode bug or incompatibility.
>
> This problems are reproducible with gstreamer version of raspbian.
>
> Can anybody suggest a solution or should I file a bug?
>
> Thank you
> Paulo Neves
>
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