[FFmpeg-soc] [PATCH] xiph packetizer

Josh Allmann joshua.allmann at gmail.com
Mon Jul 26 12:05:43 CEST 2010


On 22 July 2010 02:35, Martin Storsjö <martin at martin.st> wrote:
> On Wed, 21 Jul 2010, Josh Allmann wrote:
>
>> Here is a first attempt at a RTP packetizer for the Xiph codecs.
>> This is still a work in progress; Vorbis likes to crash when rescaling
>> the timebase, and the Theora output only vaguely resembles what it
>> should. (There are some unrelated changes in there, particularly to
>> the depacketizer. I will separate those later.)
>
> Umm, it seems the patch is missing the rtpenc_xiph.c file...

My bad, fixed.

This version works better, but is not yet complete.

-The scaffolding for Vorbis is mostly up, but I have to set its SDP properly.
-Theora video has problems with I-frames (or whatever the Theora
equivalent is), and exhibits serious blocking in areas of motion. I
hope this is due to some invalid reads that Valgrind complains about.
-Packing multiple frames in a single packet is another TODO.

I will nail all of these tomorrow.

Josh
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