[FFmpeg-devel] [PATCH v5 1/2] lavc: convert frame threading to the receive_frame() pattern

[Michael Niedermayer]

On Mon, Dec 12, 2022 at 10:42:09PM +0100, Timo Rothenpieler wrote:
> From: Anton Khirnov <anton at khirnov.net>
> 
> Reorganize the code such that the frame threading code does not call the
> decoders directly, but instead calls back into the generic decoding
> code. This avoids duplicating the logic that wraps the decoder
> invocation and will be useful in the following commits.
> ---
>  libavcodec/decode.c        |  62 ++++++---
>  libavcodec/decode.h        |   7 +
>  libavcodec/internal.h      |   7 +
>  libavcodec/pthread_frame.c | 265 ++++++++++++++++++++++++-------------
>  libavcodec/thread.h        |  18 +--
>  5 files changed, 236 insertions(+), 123 deletions(-)

this breaks some files 
but seems not 100% reproduceable

this is what i see after the patch when it fails:
[ogg @ 0x56170f3d67c0] Broken file, keyframe not correctly marked.peed= 242x    
Error while decoding stream #0:1: Operation not permitted
    Last message repeated 128784 times
Error while decoding stream #0:1: Operation not permittedate=N/A speed=9.94x    
    Last message repeated 118013 times
Error while decoding stream #0:1: Operation not permittedate=N/A speed=4.98x    
    Last message repeated 131881 times
Error while decoding stream #0:1: Operation not permittedate=N/A speed=3.32x    
    Last message repeated 131490 times
Error while decoding stream #0:1: Operation not permittedate=N/A speed=2.49x    
    Last message repeated 26968 times
frame=  106 fps= 50 q=-0.0 Lsize=N/A time=00:00:04.98 bitrate=N/A speed=2.37x    
video:50kB audio:215kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Exiting normally, received signal 2.

i will mail you the file privatly

thx

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

it is not once nor twice but times without number that the same ideas make
their appearance in the world. -- Aristotle
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