[FFmpeg-user] A question about video codecs.

Reindl Harald h.reindl at thelounge.net
Sun Oct 15 19:57:01 EEST 2023

Am 15.10.23 um 18:50 schrieb Paul B Mahol:
> On Sun, Oct 15, 2023 at 6:44 PM Classic SSG Enjoyer <
> adityadandavate04 at gmail.com> wrote:
>> Does FFMPEG has something like 'codec preservation policy' or something
>> like that?
> Nope. Policy is to remove all obsolete old codecs nobody ever use.

but "obsolete nobody ever use" don't aplly to heavily used codecs like 
H264 which will be used the next 10 years or longer for many cases

>> On Sun, 15 Oct, 2023, 9:47 pm Reindl Harald, <h.reindl at thelounge.net>
>> wrote:
>>> Am 15.10.23 um 18:07 schrieb Classic SSG Enjoyer:
>>>> Hello,
>>>> I am a user of FFMPEG. Its a great software. It gets 10/10 from me!
>>>> Sir, as you know that libx264 is widely used and other video codecs
>> like
>>>> mpeg2video, theora etc, are not much used today.
>>>> So, as time will go on, its likely that video codecs like VP9, HEVC,
>> AV1,
>>>> VVC will be the video codecs of the future as the world is transferring
>>>> from resolutions like 720p and 1080p to 4K, 8K UHD resolutions and
>> these
>>>> codecs provide significant bitrate savings over AVC.
>>>> But, when HEVC, VP9, etc codecs rule the world in future years e.g 10
>>>> years, then will the support of old video codecs at like libx264 be
>>> removed
>>>> or will FFMPEG keep supporting the video codecs at that time?
>>> why should it?
>>> you can still encode/decode old AVI stuff from the 1990's and H264 will
>>> be for a very long time preferable - on a server where customers are
>>> uploading videos which needs to be converted to something <video>
>>> supports you need much more cpu power using x265 versus x264 and it
>>> takes ages
>>> ffmpeg don't implemnt all stuff itself and libraries like libx264 won't
>>> go away - why and how should they?

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