[FFmpeg-devel] [PATCH] matroskadec.c: Handle palettized QuickTime video properly

[Paul B Mahol]

On 12/13/15, Mats Peterson <matsp888-at-yahoo.com at ffmpeg.org> wrote:
> On Sat, 12 Dec 2015, Paul B Mahol wrote:
>
>> On 12/12/15, Mats Peterson <matsp888-at-yahoo.com at ffmpeg.org> wrote:
>>> On Sat, 12 Dec 2015, Michael Niedermayer wrote:
>>>
>>>> On Sat, Dec 12, 2015 at 11:17:00AM +0000, Mats Peterson wrote:
>>>>> Obviously that private data is cropped in some way then, since the
>>>>> minimum size of a video sample description in QuickTime video is 86
>>>>> bytes.
>>>>
>>>> FFmpeg tries to support all kind of odd and broken files, so even if
>>>> the file is invalid, continuing to support it would be better
>>>>
>>>
>>> Personally I don't see why it should support broken files, but your
>>> mileage may vary, of course. So just keep the value 21 then.
>>
>> Have you provided file that doesn't work?
>>
>>>
>
> I got a sample Matroska file from Michael Niedermayer with V_QUICKTIME
> video and with a private data of only 21 bytes, when it should be at least
> 86 bytes, which is the minimum size for a video sample description in
> QuickTime.
>

What about non-broken files?

> Mats
>
> --
> Mats Peterson
> http://matsp888.no-ip.org/~mats/
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