[FFmpeg-devel] [PATCH] oggparseskeleton: return 0 on EOS packet

[James Almer]

On 06/01/14 6:25 AM, Reimar Döffinger wrote:
> On 06.01.2014, at 08:25, James Almer <jamrial at gmail.com> wrote:
>> It's the last packet
> 
> What does this fix?
> I'd rather not rely on EOS being set correctly unless there is an actual need.
> (not to mention that it's always helpful if the reason for the change is properly described in the log, so one can figure out what to test if it breaks something else and needs to be solved differently).

I have a theora+skeleton file (with EOS set correctly) that spams a lot of "Broken file, 
keyframe not correctly marked." and a vp8+skeleton that spams "read_timestamp() failed in 
the middle" errors when using seek-test without this patch.
With it the amount of warnings in the theora file goes down considerably, and the errors 
in the vp8 file disappear.
The output of seek-test also changes.

That aside, returning 0 is correct since as i said the EOS packet is the last one.
The behavior of broken files shouldn't change. It will still return -1 if the packet size 
is < 8, or 1 if none of the tests below the EOS one succeed (Which i think is wrong and 
should be changed to 0 or -1 since anything that's not "fishead", "fisbone" or EOS is 
invalid).

If you prefer i could make it so it returns -1 if the EOS packet size is > 0, which is the 
only other scenario that's not being considered.