[MPlayer-users] AVFifoBuffer error

[Masaru Nomiya]

Hello,

In the Message; 

  Subject    : Re: [MPlayer-users] AVFifoBuffer error
  Message-ID : <Zi_3iyC5JTx8QF3T at metallschleimette>
  Date & Time: Mon, 29 Apr 2024 21:39:55 +0200

[AS] == Alexander Strasser <eclipse7 at gmx.net> has written:

AS>  Hi Nomiya-san!

Wow!
Are you an Japanese anime fan too?

Anyway,

AS>  On 2024-04-29 10:09 +0900, Masaru Nomiya wrote:
MN>  >
MN>  > I have been suffering from the following error for some time now and
MN>  > have been unable to build;
MN>  >
MN>  > [...]
MN>  > nu/menu.o libmenu/menu.c
MN>  > libao2/ao_jack.c:74:8: error: unknown type name 'AVFifoBuffer'
MN>  >    74 | static AVFifoBuffer *buffer;
MN>  >       |        ^~~~~~~~~~~~
MN>  > In file included from /usr/include/gtk-2.0/gtk/gtkobject.h:37,
MN>  > [...]
MN>  >
MN>  > I have not been able to find the cause of this error, which occurs
MN>  > regardless of the gcc version.
MN>  >
MN>  > I would be very grateful if you could help me.

AS>  The error is because ao jack is yet repaired after latest major
AS>  bumps of FFmpeg.

AS>  There are 3 options:

AS>  1. Configure with --disable-jack
AS>  2. Compile against an older ffmpeg release e.g. 6.1.1
AS>  3. Use this experimental patch I sent to mplayer development mailing list:
AS>     https://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20240409/b46ad60a/attachment-0001.patch

AS>  The problem with option 3 is that it is technically wrong. The new
AS>  ffmpeg FIFO is not for use by multiple threads. That means while the
AS>  patch worked for me as far as I could hear, it may make problems on
AS>  other machines and maybe just from time to time.

AS>  Are you using ao jack for audio playback with mplayer?

No, I don't use it.

I thought the culprit was around jack too, and tried to build with the
--disable-jack switch, but it didn't work.

But after reading your email, I tried again and was able to build
it!!!

My MPlayer is 1.5.r38477.

Thanks a lot.

AS>  I intend to implement a correct solution that uses a thread safe FIFO,
AS>  but I can't tell when I will have the time.

Every day is Sunday for me, so I have plenty of time to wait.
I'm waiting in anticipation.

Best Regards.

---
┏━━┓彡  Masaru Nomiya                       mail-to: nomiya @ lake.dti.ne.jp
┃＼／彡
┗━━┛	"Microsoft is overhauling its cybersecurity strategy, called the
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