diff options
| author | Paul B Mahol <onemda@gmail.com> | 2023-09-23 09:57:06 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2023-09-23 10:04:08 +0200 |
| commit | cb26b85953464c7f39fcf20ae4443526deed4bd6 (patch) | |
| tree | 8d62cedefbe7aadc6e58e880c8003412dbcea87e | |
| parent | 5d98259841a698b58fe4ca4b95a0693f7fa587a7 (diff) | |
avcodec/svq1dec: fix runtime error: applying non-zero offset 4 to null pointer
| -rw-r--r-- | libavcodec/svq1dec.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c index 33217739b2..8563b29164 100644 --- a/libavcodec/svq1dec.c +++ b/libavcodec/svq1dec.c @@ -282,7 +282,7 @@ static int svq1_decode_block_non_intra(GetBitContext *bitbuf, uint8_t *pixels, SVQ1_CALC_CODEBOOK_ENTRIES(ff_svq1_inter_codebooks); for (y = 0; y < height; y++) { - for (x = 0; x < width / 4; x++, codebook++) { + for (x = 0; x < width / 4; x++) { n3 = dst[x]; /* add mean value to vector */ n1 = n4 + ((n3 & 0xFF00FF00) >> 8); @@ -290,6 +290,8 @@ static int svq1_decode_block_non_intra(GetBitContext *bitbuf, uint8_t *pixels, SVQ1_ADD_CODEBOOK() /* store result */ dst[x] = n1 << 8 | n2; + if (codebook != NULL) + codebook++; } dst += pitch / 4; } |