Comment # 9 on bug 954646 from Mustafa Muhammad

OK, the iPad link is mp4 as you said, but my original link in the bug is not
only mp4, it has vp9 too.
Before installing chromium-ffmpeg, I got vp9 but not working, see the attached
image.

Then I installed chromium-ffmpeg, I also got vp9, but this time it is working,
see the second attached image.

Also the output of youtube-dl (from the repos) to list available formats
clearly shows vp9 formats, maybe the chromium-ffmpegsumo is causing problems:


mustafa@linux-wyjf:~> youtube-dl -F
https://www.youtube.com/watch?v=ACXtwSqQOxw&index=4&list=PLqjy2IHnuqJuusA9ujikzB5IRlTIenP-K
[1] 3663
[2] 3664
[2]+  Done                    index=4
mustafa@linux-wyjf:~> [youtube] ACXtwSqQOxw: Downloading webpage
[youtube] ACXtwSqQOxw: Downloading video info webpage
[youtube] ACXtwSqQOxw: Extracting video information
[youtube] ACXtwSqQOxw: Downloading DASH manifest
[info] Available formats for ACXtwSqQOxw:
format code  extension  resolution note
171          webm       audio only DASH audio  107k , vorbis@128k (44100Hz),
5.34MiB
140          m4a        audio only DASH audio  129k , m4a_dash container, aac 
@128k (44100Hz), 7.00MiB
141          m4a        audio only DASH audio  255k , m4a_dash container, aac 
@256k (44100Hz), 13.90MiB
160          mp4        192x144    DASH video  111k , avc1.4d400c, 13fps, video
only, 5.94MiB
242          webm       320x240    DASH video  193k , vp9, 1fps, video only,
7.76MiB
133          mp4        320x240    DASH video  248k , avc1.4d400d, 25fps, video
only, 13.29MiB
243          webm       480x360    DASH video  358k , vp9, 1fps, video only,
14.69MiB
134          mp4        480x360    DASH video  392k , avc1.4d4015, 25fps, video
only, 14.07MiB
244          webm       640x480    DASH video  715k , vp9, 1fps, video only,
29.77MiB
135          mp4        640x480    DASH video  811k , avc1.4d401e, 25fps, video
only, 29.67MiB
17           3gp        176x144    small ,  mp4a.40.2, mp4v.20.3
36           3gp        320x240    small ,  mp4a.40.2, mp4v.20.3
5            flv        400x240    small 
43           webm       640x360    medium ,  vorbis, vp8.0
18           mp4        640x360    medium ,  mp4a.40.2, avc1.42001E (best)

[1]+  Done                    youtube-dl -F
https://www.youtube.com/watch?v=ACXtwSqQOxw