Re: [FFmpeg-devel] [PATCH] avcodec/jpeg2000dec: fix HT block decoder

[Andreas Rheinhardt <andreas.rheinhardt@outlook.com>]

pal@sandflow.com:
> From: Pierre-Anthony Lemieux <pal@palemieux.com>
> 
> Addresses https://trac.ffmpeg.org/ticket/10905
> 
> Co-authored-by: Osamu Watanabe <owatanab@es.takushoku-u.ac.jp>
> Signed-off-by: Pierre-Anthony Lemieux <pal@palemieux.com>
> --> @@ -1297,14 +1299,14 @@ ff_jpeg2000_decode_htj2k(const
Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c
>      for (int y = 0; y < height; y++) {
>          for (int x = 0; x < width; x++) {
>              n = x + (y * t1->stride);
> -            val = sample_buf[x + (y * width)];
> +            val = sample_buf[x + (y * quad_buf_width)];
>              /* Convert sign-magnitude to two's complement. */
>              val = val >> 31 ? 0x80000000 - val : val;
>              val >>= (pLSB - 1);
>              t1->data[n] = val;
>          }
>      }
> -free:
> +    free:

Spurious change. It also seems unintentional and undesirable.

>      av_freep(&sample_buf);
>      av_freep(&block_states);
>      return ret;

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