[Bug 756422] rtpj2kpay doesn't work

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=756422

Thiago Sousa Santos <thiagossantos at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |thiagossantos at gmail.com

--- Comment #1 from Thiago Sousa Santos <thiagossantos at gmail.com> ---
image/x-j2c and image/x-jpc are different formats for jpeg2000, the
avenc_jpeg2000 can only produce one type while the rtp element wants to consume
a different one. Switching the formats will just fool the rtp element into
thinking it is receiving one format while it is actually another.

I see 2 options here:
1) use openjpegenc that claims to support the format the rtp element want
2) improve avenc_jpeg2000 to support the desired format (ffmpeg might have an
API to set that, but I haven't checked so far)

Anyway, trying with openjpegenc also seems to cause some issues on the received
side, I see lots of: "rtpj2kdepay
gstrtpj2kdepay.c:558:gst_rtp_j2k_depay_process:<rtpj2kdepay0> discard packet,
no sync" and no output comes out. Some more investigation is needed here.

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