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authorMichael Niedermayer <michaelni@gmx.at>2011-11-22 01:43:58 +0100
committerMichael Niedermayer <michaelni@gmx.at>2011-11-22 01:43:58 +0100
commitb55aca6b8b3969e988e24f253b88e22ead80d8ba (patch)
tree9b576cdd8f8b312e09c9c5819a2c7bcddfae7dcf /libavcodec/vp6.c
parent57bf0d1fe53bd501cd2c060075ee9ba27a770bcd (diff)
parent4e9b2c57326fe254d0251fbf268b3481705b4c65 (diff)
downloadffmpeg-b55aca6b8b3969e988e24f253b88e22ead80d8ba.tar.gz
Merge branch 'release/0.7' into oldabi
* release/0.7: (33 commits) Update for 0.7.8 svq1dec: call avcodec_set_dimensions() after dimensions changed. Fixes NGS00148 vp3dec: Check coefficient index in vp3_dequant() Fixes NGS00145 qdm2dec: fix buffer overflow. Fixes NGS00144 h264: Fix invalid interlaced progressive MB combinations for direct mode prediction. Fixes Ticket312 mpegvideo: dont use ff_mspel_motion() for vc1 Fixes Ticket655 imgutils: Fix illegal read. ac3probe: Detect Sonic Foundry Soft Encode AC3 as raw AC3. Our ac3 code chain can handle it fine. More ideal would be to write a demuxer that actually extracts what can be from the additional headers and uses it for whatever it can be used for. mjpeg: support mpo Fixes stereoscopic_photo.mpo Add a version bump and APIchanges entry for avcodec_open2 and avformat_find_stream_info. lavf: fix multiplication overflow in avformat_find_stream_info() lavf: fix invalid reads in avformat_find_stream_info() lavf: add avformat_find_stream_info() lavc: fix parentheses placement in avcodec_open2(). lavc: introduce avcodec_open2() as a replacement for avcodec_open(). rawdec: use a default sample rate if none is specified. Fixes "ffmpeg -f s16le -i /dev/zero" rawdec: add check on sample_rate qdm2dec: check remaining input bits in the mainloop of qdm2_fft_decode_tones() This is neccessary but likely not sufficient to prevent out of array reads. cinepak: check strip_size wma: Check channel number before init. Fixes Ticket240 ... Conflicts: RELEASE doc/APIchanges libavcodec/avcodec.h libavcodec/utils.c libavcodec/version.h libavdevice/v4l2.c libavformat/utils.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/vp6.c')
-rw-r--r--libavcodec/vp6.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/libavcodec/vp6.c b/libavcodec/vp6.c
index 29fcecdb57..84876b7146 100644
--- a/libavcodec/vp6.c
+++ b/libavcodec/vp6.c
@@ -442,7 +442,8 @@ static void vp6_parse_coeff(VP56Context *s)
model1 = model->coeff_dccv[pt];
model2 = model->coeff_dcct[pt][ctx];
- for (coeff_idx=0; coeff_idx<64; ) {
+ coeff_idx = 0;
+ for (;;) {
if ((coeff_idx>1 && ct==0) || vp56_rac_get_prob(c, model2[0])) {
/* parse a coeff */
if (vp56_rac_get_prob(c, model2[2])) {
@@ -483,8 +484,10 @@ static void vp6_parse_coeff(VP56Context *s)
run += vp56_rac_get_prob(c, model3[i+8]) << i;
}
}
-
- cg = vp6_coeff_groups[coeff_idx+=run];
+ coeff_idx += run;
+ if (coeff_idx >= 64)
+ break;
+ cg = vp6_coeff_groups[coeff_idx];
model1 = model2 = model->coeff_ract[pt][ct][cg];
}