[MPlayer-users] can't play av1 codec video

[stan]

On Sun, 28 Nov 2021 12:00:56 +0900
Masaru Nomiya <nomiya at galaxy.dti.ne.jp> wrote:

> Hello,
> 
> I tried to play av1 codec file, but no video;

[snip]

> I tested with the file which I got from;
> 
>   https://youtu.be/feSVtC1BSeQ
> 
> But, vlc, ffplay, xine-lib, and kodi can play this flawlessly,
> 
> Any idea?

No solution or idea.  But, I can confirm this.  Audio worked after some
initial confusion.  I compiled the latest mplayer version from svn, with
ffmpeg updated as well.

MPlayer SVN-r38326-11 (C) 2000-2021 MPlayer Team


Playing Elvis_Presley_Jailhouse_Rock.mp4.  <------  from youtube
                                                                                                                                                                      
libavformat version 59.9.102 (internal)
                                                                                                                                                                      
libavformat file format detected.
                                                                                                                                                                      
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55884b37a8a0]Protocol name not provided,
cannot determine if input is local or a network protocol, buffers and
access patterns cannot be configured optimally without knowing the
protocol                       
[av1 @ 0x55884b3aba60]Your platform doesn't suppport hardware
accelerated AV1 decoding.
                                                                                                        
[av1 @ 0x55884b3aba60]Failed to get pixel format.
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]Missing Sequence Header.
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]Missing Sequence Header.
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]Missing Sequence Header.
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]Missing Sequence Header.
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]Missing Sequence Header.
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]video_get_buffer: image parameters invalid
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]get_buffer() failed
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]thread_get_buffer() failed
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]Failed to allocate space for current frame.
                                                                                                                                                                      
[av1 @ 0x55884b3aba60]Get current frame error 

[SNIP]

many of these.

Opening video filter: [screenshot]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Cannot find codec 'libdav1d' in libavcodec...
VDecoder init failed :(
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Cannot find codec 'libaom-av1' in libavcodec...
VDecoder init failed :(
Cannot find codec matching selected -vo and video format 0x31307661.

ffplay, vlc, and totem all worked on this file.  But each of them
showed a different visual image.

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