[FFmpeg-devel] [PATCH]lavf/isom: Recognize fourcc HEVC

James Almer jamrial at gmail.com
Thu May 3 23:21:26 EEST 2018


On 5/3/2018 4:31 PM, Michael Niedermayer wrote:
> Hi
> 
> On Wed, May 02, 2018 at 04:26:07PM -0300, James Almer wrote:
>> On 5/2/2018 3:59 PM, Carl Eugen Hoyos wrote:
>>> 2018-05-02 20:52 GMT+02:00, James Almer <jamrial at gmail.com>:
>>>> On 5/2/2018 3:44 PM, Carl Eugen Hoyos wrote:
>>>
>>>>> Attached patch fixes ticket #7110 for me.
>>>>
>>>> hevc in AVI is not a thing, and adding a non official fourcc to
>>>> ff_codec_movvideo_tags to support weird files created by
>>>> faulty software that are not even mov/mp4 is not a good idea.
>>>
>>> So what do you suggest?
>>> Not supporting files that are written by common software?
>>
>> Asking the source of these files (VirtualDub) to stop creating them is
>> one option. Otherwise we'll be adding a similar tag to support h266 in
>> avi five years from now because people refuse to do things right.
> 
> And what would be the argument why a codec be that h265 or h266 should
> not be stored in a generic container (avi in this case) ?
> 
> Heres the official register:
> https://www.iana.org/assignments/wave-avi-codec-registry/wave-avi-codec-registry.xml
> 
> there are matches for both h265 and h266

There are none for HEVC, which is what this patch is adding (and in the
wrong place).

> This should not be surprising as avi is intended to be and is a
> generic container format. 
> 
> Thanks
> 
> [...]
> 
> 
> 
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