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avcodec/lcldec: More space for rgb24

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Fixes: Ticket 10239
Fixes: zlib_306_306_rgb24.av

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-03-09 13:57:17 +01:00
parent 4ea28554db
commit e2c3aa8e2b
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GPG Key ID: B18E8928B3948D64
1 changed files with 5 additions and 2 deletions
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7
libavcodec/lcldec.c
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@ -152,6 +152,8 @@ static int zlib_decomp(AVCodecContext *avctx, const uint8_t *src, int src_len, i
if (expected != (unsigned int)zstream->total_out) {
av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %lu)\n",
expected, zstream->total_out);
if (expected > (unsigned int)zstream->total_out)
return (unsigned int)zstream->total_out;
return AVERROR_UNKNOWN;
}
return zstream->total_out;
@ -278,12 +280,13 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *frame,
ret = zlib_decomp(avctx, buf + 8 + mthread_inlen, len - 8 - mthread_inlen,
mthread_outlen, mthread_outlen);
if (ret < 0) return ret;
len = c->decomp_size;
} else {
int ret = zlib_decomp(avctx, buf, len, 0, c->decomp_size);
if (ret < 0) return ret;
len = ret;
}
encoded = c->decomp_buf;
len = c->decomp_size;
break;
#endif
default:
@ -521,7 +524,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
partial_h_supported = 1;
break;
case IMGTYPE_RGB24:
c->decomp_size = basesize * 3;
c->decomp_size = FFALIGN(avctx->width*3, 4) * avctx->height;
max_decomp_size = max_basesize * 3;
avctx->pix_fmt = AV_PIX_FMT_BGR24;
av_log(avctx, AV_LOG_DEBUG, "Image type is RGB 24.\n");