Michael Niedermayer:
> Fixes: left shift of negative value -121
> Fixes: 
> 23911/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PGX_fuzzer-4986800258154496
> 
> Found-by: continuous fuzzing process 
> https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
> ---
>  libavcodec/pgxdec.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavcodec/pgxdec.c b/libavcodec/pgxdec.c
> index 93b9f4e7a0..e72ec84152 100644
> --- a/libavcodec/pgxdec.c
> +++ b/libavcodec/pgxdec.c
> @@ -102,7 +102,7 @@ error:
>          for (i = 0; i < height; i++) {                                       
>                \
>              PIXEL *line = (PIXEL*)frame->data[0] + 
> i*frame->linesize[0]/sizeof(PIXEL);      \
>              for (j = 0; j < width; j++) {                                    
>                \
> -                int val;                                                     
>                \
> +                unsigned val;                                                
>                     \

"unsigned" is longer than "int", so you need to delete a few spaces or
the '\' won't be in line with the others any more.

- Andreas
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