Wrongly reported "video not supported"

[Alfonso Sanchez-Beato]

For some videos a window showing a "Video format not supported" message is shown. However, after pressing "Close" the video is shown normally, so the message is wrong.

A couple of videos where this has been noticed:

http://trailers.divx.com/divx_prod/divx_plus_hd_showcase/BigBuckBunny_DivX_HD720p_ASP.divx
(video and audio are played here)

http://samplemedia.linaro.org/Mmtest/media_api/video/H263_56_AMRNB_6.3gp
(video is supported, but AMR audio not yet, that might be related to the bug)

$ system-image-cli -i
current build number: 80
device name: mako
channel: ubuntu-touch/vivid-proposed
last update: 2015-01-28 13:36:03
version version: 80
version ubuntu: 20150128
version device: 20150126
version custom: 20150128

[Jim Hodapp (jhodapp)]

I added support for the GStreamer errors messages to bubble up to mediaplayer-app now, so that's why you're getting this. It's curious why you're getting an error if playback is possible. I'd have to see on the media-hub-server side with GST_DEBUG=*:3 what other messages GStreamer is reporting and why it thinks it can't play these videos.

[Alfonso Sanchez-Beato (alfonsosanchezbeato)]

The error is reported because not all streams in the container are supported. For BigBuckBunny_DivX_HD720p_ASP.divx, there are two audio streams of different types, ac3 and mp3, and I think the first one is not supported. For H263_56_AMRNB_6.3gp, the AMR audio track is not supported. For both cases, intalling more codecs removes the errors.

There is clearly a problem with the video with 2 audio tracks, as no error should be displayed when there is at least one stream available for video and another one for audio. For the second video I would say that the bug is displaying "Video format not supported" as it should be instead "Audio format not supported".

[Jim Hodapp (jhodapp)]

Yes, the error reporting that is in place right now doesn't take into account whether the video, audio or text streams are supported by a decoder or not - it handles these in a generic sense. Additional code to make it smarter and more specific would be appropriate. The error messages in mediaplayer-app will need changing as well.