[FFmpeg-cvslog] check all svq3_get_ue_golomb() returns.
Michael Niedermayer
git at videolan.org
Wed Sep 21 21:08:38 CEST 2011
ffmpeg | branch: release/0.8 | Michael Niedermayer <michaelni at gmx.at> | Sat Sep 17 21:53:21 2011 +0200| [764ffdd0ec069cd648fd069d6de233519a65d49e] | committer: Michael Niedermayer
check all svq3_get_ue_golomb() returns.
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
(cherry picked from commit 979bea13003ef489d95d2538ac2fb1c26c6f103b)
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=764ffdd0ec069cd648fd069d6de233519a65d49e
---
libavcodec/dirac.c | 16 ++++++++--------
libavcodec/rv30.c | 4 ++--
libavcodec/rv40.c | 5 ++++-
libavcodec/svq3.c | 12 ++++++------
4 files changed, 20 insertions(+), 17 deletions(-)
diff --git a/libavcodec/dirac.c b/libavcodec/dirac.c
index af0d799..1582a5f 100644
--- a/libavcodec/dirac.c
+++ b/libavcodec/dirac.c
@@ -120,7 +120,7 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
// chroma subsampling
if (get_bits1(gb))
source->chroma_format = svq3_get_ue_golomb(gb);
- if (source->chroma_format > 2) {
+ if (source->chroma_format > 2U) {
av_log(avctx, AV_LOG_ERROR, "Unknown chroma format %d\n",
source->chroma_format);
return -1;
@@ -128,14 +128,14 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
if (get_bits1(gb))
source->interlaced = svq3_get_ue_golomb(gb);
- if (source->interlaced > 1)
+ if (source->interlaced > 1U)
return -1;
// frame rate
if (get_bits1(gb)) {
source->frame_rate_index = svq3_get_ue_golomb(gb);
- if (source->frame_rate_index > 10)
+ if (source->frame_rate_index > 10U)
return -1;
if (!source->frame_rate_index) {
@@ -156,7 +156,7 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
if (get_bits1(gb)) {
source->aspect_ratio_index = svq3_get_ue_golomb(gb);
- if (source->aspect_ratio_index > 6)
+ if (source->aspect_ratio_index > 6U)
return -1;
if (!source->aspect_ratio_index) {
@@ -179,7 +179,7 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
if (get_bits1(gb)) {
source->pixel_range_index = svq3_get_ue_golomb(gb);
- if (source->pixel_range_index > 4)
+ if (source->pixel_range_index > 4U)
return -1;
// This assumes either fullrange or MPEG levels only
@@ -207,7 +207,7 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
if (get_bits1(gb)) {
idx = source->color_spec_index = svq3_get_ue_golomb(gb);
- if (source->color_spec_index > 4)
+ if (source->color_spec_index > 4U)
return -1;
avctx->color_primaries = dirac_color_presets[idx].color_primaries;
@@ -217,7 +217,7 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
if (!source->color_spec_index) {
if (get_bits1(gb)) {
idx = svq3_get_ue_golomb(gb);
- if (idx < 3)
+ if (idx < 3U)
avctx->color_primaries = dirac_primaries[idx];
}
@@ -259,7 +259,7 @@ int ff_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
else if (version_major > 2)
av_log(avctx, AV_LOG_WARNING, "Stream may have unhandled features\n");
- if (video_format > 20)
+ if (video_format > 20U)
return -1;
// Fill in defaults for the source parameters.
diff --git a/libavcodec/rv30.c b/libavcodec/rv30.c
index 53d824a..935866d 100644
--- a/libavcodec/rv30.c
+++ b/libavcodec/rv30.c
@@ -79,7 +79,7 @@ static int rv30_decode_intra_types(RV34DecContext *r, GetBitContext *gb, int8_t
for(i = 0; i < 4; i++, dst += r->intra_types_stride - 4){
for(j = 0; j < 4; j+= 2){
int code = svq3_get_ue_golomb(gb) << 1;
- if(code >= 81*2){
+ if(code >= 81U*2U){
av_log(r->s.avctx, AV_LOG_ERROR, "Incorrect intra prediction code\n");
return -1;
}
@@ -108,7 +108,7 @@ static int rv30_decode_mb_info(RV34DecContext *r)
GetBitContext *gb = &s->gb;
int code = svq3_get_ue_golomb(gb);
- if(code > 11){
+ if(code > 11U){
av_log(s->avctx, AV_LOG_ERROR, "Incorrect MB type code\n");
return -1;
}
diff --git a/libavcodec/rv40.c b/libavcodec/rv40.c
index 54d786a..842f01a 100644
--- a/libavcodec/rv40.c
+++ b/libavcodec/rv40.c
@@ -231,8 +231,11 @@ static int rv40_decode_mb_info(RV34DecContext *r)
int blocks[RV34_MB_TYPES] = {0};
int count = 0;
- if(!r->s.mb_skip_run)
+ if(!r->s.mb_skip_run) {
r->s.mb_skip_run = svq3_get_ue_golomb(gb) + 1;
+ if(r->s.mb_skip_run > (unsigned)s->mb_num)
+ return -1;
+ }
if(--r->s.mb_skip_run)
return RV34_MB_SKIP;
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c
index 30cd0f1..e5c18c5 100644
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@@ -221,7 +221,7 @@ static inline int svq3_decode_block(GetBitContext *gb, DCTELEM *block,
for (limit = (16 >> intra); index < 16; index = limit, limit += 8) {
for (; (vlc = svq3_get_ue_golomb(gb)) != 0; index++) {
- if (vlc == INVALID_VLC)
+ if (vlc < 0)
return -1;
sign = (vlc & 0x1) - 1;
@@ -239,7 +239,7 @@ static inline int svq3_decode_block(GetBitContext *gb, DCTELEM *block,
level = ((vlc + 9) >> 2) - run;
}
} else {
- if (vlc < 16) {
+ if (vlc < 16U) {
run = svq3_dct_tables[intra][vlc].run;
level = svq3_dct_tables[intra][vlc].level;
} else if (intra) {
@@ -569,7 +569,7 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
for (i = 0; i < 16; i+=2) {
vlc = svq3_get_ue_golomb(&s->gb);
- if (vlc >= 25){
+ if (vlc >= 25U){
av_log(h->s.avctx, AV_LOG_ERROR, "luma prediction:%d\n", vlc);
return -1;
}
@@ -641,7 +641,7 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
}
if (!IS_INTRA16x16(mb_type) && (!IS_SKIP(mb_type) || s->pict_type == AV_PICTURE_TYPE_B)) {
- if ((vlc = svq3_get_ue_golomb(&s->gb)) >= 48){
+ if ((vlc = svq3_get_ue_golomb(&s->gb)) >= 48U){
av_log(h->s.avctx, AV_LOG_ERROR, "cbp_vlc=%d\n", vlc);
return -1;
}
@@ -651,7 +651,7 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
if (IS_INTRA16x16(mb_type) || (s->pict_type != AV_PICTURE_TYPE_I && s->adaptive_quant && cbp)) {
s->qscale += svq3_get_se_golomb(&s->gb);
- if (s->qscale > 31){
+ if (s->qscale > 31U){
av_log(h->s.avctx, AV_LOG_ERROR, "qscale:%d\n", s->qscale);
return -1;
}
@@ -755,7 +755,7 @@ static int svq3_decode_slice_header(AVCodecContext *avctx)
skip_bits_long(&s->gb, 0);
}
- if ((i = svq3_get_ue_golomb(&s->gb)) == INVALID_VLC || i >= 3){
+ if ((i = svq3_get_ue_golomb(&s->gb)) >= 3U){
av_log(h->s.avctx, AV_LOG_ERROR, "illegal slice type %d \n", i);
return -1;
}
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