[FFmpeg-trac] #11052(ffmpeg:new): ffmpeg 6 and 7 stop ecoding without any error, while ffmpeg 5 works

[FFmpeg]

#11052: ffmpeg 6 and 7 stop ecoding without any error, while ffmpeg 5 works
------------------------------------+----------------------------------
             Reporter:  nonamepp    |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+----------------------------------
Description changed by nonamepp:

Old description:

> Summary of the bug:
>
> I used ffmpeg 7 to encode about 100 videos on Windows 11 64 bit. The
> command is:
>
> `for /r %v in (*1080p*.mkv) do ffmpeg -hwaccel auto -i "%v" -loglevel
> verbose -c:v libx265 -profile:v main10 -pix_fmt yuv420p10le -preset slow
> -b:v 2048k -map 0:v:0 -map 0:a -map_metadata 0 -c:a aac -ar 48000 -b:a
> 256k -ac 6 "%~dpnv.ffmpeg.mp4" -n`
>
> It works for most videos, and fails for about 5 videos. The symptom is
> that ffmpeg stops within 1 to 10 seconds, outputs a small video file with
> 0 byte or hundreds kilobyte. There is no error given at all.
>
> I looked into those 5 videos failed to encode:
> - I tried `-loglevel debug` and `-report`, got no error at all. It simply
> stops and exits.
> - I tried to run ffmpeg 7.0.1, 7, 6.1.1, 6.1, 6.0, all got the same
> result (stops encoding in seconds without any error)
> - I tried to run them on different Windows 11 64 bit computers (latest
> build with Intel CPU and AMD CPU), all got the same problem.
> - I tried to run `ffmpeg -c copy` to copy these 5 videos, and encode the
> copies, still got the same problem.
> - I tried to run ffmpeg 5.1.2 and 5.0. It just works (for all 5 videos).
>
> So I believe this is a bug and regression in ffmpeg 6 and 7.

New description:

 Summary of the bug:

 I used ffmpeg 7 to encode about 100 videos on Windows 11 64 bit. The
 command is:

 `for /r %v in (*1080p*.mkv) do ffmpeg -hwaccel auto -i "%v" -loglevel
 verbose -c:v libx265 -profile:v main10 -pix_fmt yuv420p10le -preset slow
 -b:v 2048k -map 0:v:0 -map 0:a -map_metadata 0 -c:a aac -ar 48000 -b:a
 256k -ac 6 "%~dpnv.ffmpeg.mp4" -n`

 It works for most videos, and fails for about 5 videos. The symptom is
 that ffmpeg stops within 1 to 10 seconds, outputs a small video file with
 0 byte or hundreds kilobyte. There is no error given at all.

 I looked into those 5 videos failed to encode:
 - I tried `-loglevel debug` and `-report`, got no error at all. It simply
 stops and exits.
 - I tried to run ffmpeg 7.0.1, 7, 6.1.1, 6.1, 6.0, all got the same result
 (stops encoding in seconds without any error)
 - I tried to run them on different Windows 11 64 bit computers (latest
 build with Intel CPU and AMD CPU), all got the same problem.
 - I tried to run `ffmpeg -c copy` to copy these 5 videos, and encode the
 copies, still got the same problem.
 - I tried to change the encoding and arguments, got the same problem. This
 problem seems to happen with specific videos, and has nothing to do with
 arguments.
 - I tried to run ffmpeg 5.1.2 and 5.0. It just works (for all 5 videos).

 So I believe this is a bug and regression in ffmpeg 6 and 7.

--
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11052#comment:2>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker