Re: can't play av1 codec video

Hello,

In the Message; 

  Subject    : Re: [MPlayer-users] can't play av1 codec video
  Message-ID : <[email protected]>
  Date & Time: Mon, 29 Nov 2021 09:49:50 -0500

The Wanderer <[email protected]> has written:

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

> When I download that URL with youtube-dl, by default it gives me a file
> which has a video stream with the fourcc '462H', which read backwards is
> 'H264', or the H.264 video codec.

> By fiddling with youtube-dl options, I've managed to get it to give me
> an AV1 version of the video. (I'd be a little curious how you did your
> downloading, that it gave you the AV1 version by default; if you can't
> get that format working, you might be able to work around the problem by
> finding a way to get YouTube to give you a different one.)

> My local copy of MPlayer (compiled from SVN, and from FFmpeg git, about
> a month ago) is able to recognize the AV1 codec, and play the file
> without issues.

> I haven't done an exhaustive investigation, but the little digging I've
> done so far seems to indicate that this AV1 support is being provided
> via FFmpeg by libaom, which I have installed (on Debian) via the libaom3
> and libaom-dev packages.

> I don't know what platform you're on, but if you can get this codec to
> be available (either by installing a version that already has it
> compiled in, or by installing the necessary libraries and compiling
> MPlayer and FFmpeg yourself), you should be able to have this work.

My OS is openSUSE Leap 15.3 (x86_64).

And, I got the file by;

  $ youtube-dl https://youtu.be/feSVtC1BSeQ

As you know, the file name is Japanese, so I converted the file name

  $ mv FILE.mp4 3,mp4

But, this conversion is just for the posting mail to this mailing
list.

Anyway,

 $ mediainfo 3.mp4

General
Complete name                            : 3.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/av01/iso2/mp41)
File size                                : 16.2 MiB
Duration                                 : 3 min 13 s
Overall bit rate                         : 703 kb/s
Writing application                      : Lavf58.79.100

Video
ID                                       : 1
Format                                   : AV1
Format/Info                              : AOMedia Video 1
Format profile                           : [email protected]
Codec ID                                 : av01
Duration                                 : 3 min 13 s
Bit rate                                 : 568 kb/s
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 (30000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Bits/(Pixel*Frame)                       : 0.021
Stream size                              : 13.1 MiB (81%)
Title                                    : ISO Media file produced by Google Inc.
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : av1C
[...]

I've installed;

libaom3-3.2.0-lp153.19.2.x86_64
aom-tools-3.2.0-lp153.19.2.x86_64
libaom0-1.0.0-3.6.1.x86_64
libaom-devel-doc-3.2.0-lp153.19.2.noarch
libaom-devel-3.2.0-lp153.19.2.x86_64

And,

 $ ldd /usr/bin/mplayer | grep aom

  libaom.so.3 => /usr/lib64/libaom.so.3 (0x00007f5f9a3e6000)

As, I wrote before, ffplay can play this file flawlessly.

In my environment, the version of ffmpeg is 4.4.1.
I compiled the mplayer with this ffmpeg (4.4.1).

Thanks.

---
     Masaru Nomiya              mail-to: nomiya @ galaxy.dti.ne.jp

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