diff options
Diffstat (limited to 'libavformat/dv.c')
| -rw-r--r-- | libavformat/dv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavformat/dv.c b/libavformat/dv.c index 4106dfdce3..c90ddec0d3 100644 --- a/libavformat/dv.c +++ b/libavformat/dv.c @@ -204,6 +204,12 @@ static int dv_extract_audio_info(DVDemuxContext* c, uint8_t* frame) stype = (as_pack[3] & 0x1f); /* 0 - 2CH, 2 - 4CH, 3 - 8CH */ quant = as_pack[4] & 0x07; /* 0 - 16bit linear, 1 - 12bit nonlinear */ + if (stype > 3) { + av_log(c->fctx, AV_LOG_ERROR, "stype %d is invalid\n", stype); + c->ach = 0; + return 0; + } + /* note: ach counts PAIRS of channels (i.e. stereo channels) */ ach = ((int[4]){ 1, 0, 2, 4})[stype]; if (ach == 1 && quant && freq == 2) |