[FFmpeg-devel] [PATCH] avcodec/vvcdec: fix seeking for open GOP

[James Almer]

On 2/3/2024 9:17 AM, Nuo Mi wrote:
> On Sat, Feb 3, 2024 at 7:54 PM James Almer <jamrial at gmail.com> wrote:
> 
>> On 2/3/2024 7:34 AM, Nuo Mi wrote:
>>> how to reproduce:
>>> wget https://media.xiph.org/video/derf/y4m/students_cif.y4m
>>> vvencapp --input students_cif.y4m --preset faster --output students.266
>>> MP4Box -add students.266:fps=30000/1001:par=12:11 -new students.mp4
>>
>> Can't you do this with ffmpeg? mp4 muxing support was added recently,
>> and we have a parser to find frame boundaries from raw bitstreams.
>>
>> Yes, we can
> ffmpeg -i students.266 -c:v copy students.mp4
> But the reporter used the mp4box
> see:  https://github.com/ffvvc/FFmpeg/issues/190#issuecomment-1924169765

That's ok, just wanted to know why not use ffmpeg for this. If it 
couldn't remux the file, then that'd be something we should fix.