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authorMichael Niedermayer <michaelni@gmx.at>2011-11-09 00:54:58 +0100
committerMichael Niedermayer <michaelni@gmx.at>2011-11-09 01:03:40 +0100
commit57bf0d1fe53bd501cd2c060075ee9ba27a770bcd (patch)
tree5039c9b0d0fc2ed9419215d2219eff9c7d4c3aa1 /libavformat/psxstr.c
parent661e0811760844fd03d2f5cfe74c5736bb4b8ecc (diff)
parent3970d4e72809d9c9bf4c463ba1a6ab2650e3252b (diff)
downloadffmpeg-57bf0d1fe53bd501cd2c060075ee9ba27a770bcd.tar.gz
Merge branch 'release/0.7' into oldabi
* release/0.7: (290 commits) nuv: Fix combination of size changes and LZO compression. av_lzo1x_decode: properly handle negative buffer length. Do not call parse_keyframes_index with NULL stream. update versions for 0.7 branch Version numbers for 0.8.6 snow: emu edge support Fixes Ticket592 imc: validate channel count imc: check for ff_fft_init() failure (cherry picked from commit 95fee70d6773fde1c34ff6422f48e5e66f37f263) libgsmdec: check output buffer size before decoding (cherry picked from commit b03761b1309293bbf30edef767503875277b01cf) configure: fix arch x86_32 mp3enc: avoid truncating id3v1 tags by one byte asfdec: Check packet_replic_size earlier cin audio: validate the channel count binkaudio: add some buffer overread checks. atrac1: validate number of channels (cherry picked from commit bff5b2c1ca1290ea30587ff2f76171f9e3854872) atrac1: check output buffer size before decoding (cherry picked from commit 33684b9c12b74c0140fb91e8150263db4a48d55e) vp3: fix oob read for negative tokens and memleaks on error. (cherry picked from commit 8370e426e42f2e4b9d14a1fb8107ecfe5163ce7f) apedec: set s->currentframeblocks after validating nblocks apedec: use unsigned int for 'nblocks' and make sure that it's within int range apedec: check for data buffer realloc failure (cherry picked from commit 11ca8b2d7486e879926488404b3b79af774f0f2d) ... Conflicts: Changelog Makefile RELEASE configure libavcodec/error_resilience.c libavcodec/mpegvideo.c libavformat/matroskaenc.c tests/ref/lavf/mxf Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/psxstr.c')
-rw-r--r--libavformat/psxstr.c54
1 files changed, 44 insertions, 10 deletions
diff --git a/libavformat/psxstr.c b/libavformat/psxstr.c
index 4376e743c4..398e44e128 100644
--- a/libavformat/psxstr.c
+++ b/libavformat/psxstr.c
@@ -68,6 +68,8 @@ static const char sync_header[12] = {0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf
static int str_probe(AVProbeData *p)
{
uint8_t *sector= p->buf;
+ uint8_t *end= sector + p->buf_size;
+ int aud=0, vid=0;
if (p->buf_size < RAW_CD_SECTOR_SIZE)
return 0;
@@ -79,20 +81,52 @@ static int str_probe(AVProbeData *p)
sector += RIFF_HEADER_SIZE;
}
- /* look for CD sync header (00, 0xFF x 10, 00) */
- if (memcmp(sector,sync_header,sizeof(sync_header)))
- return 0;
+ while (end - sector >= RAW_CD_SECTOR_SIZE) {
+ /* look for CD sync header (00, 0xFF x 10, 00) */
+ if (memcmp(sector,sync_header,sizeof(sync_header)))
+ return 0;
- if(sector[0x11] >= 32)
- return 0;
- if( (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_VIDEO
- && (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_AUDIO
- && (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_DATA)
- return 0;
+ if (sector[0x11] >= 32)
+ return 0;
+
+ switch (sector[0x12] & CDXA_TYPE_MASK) {
+ case CDXA_TYPE_DATA:
+ case CDXA_TYPE_VIDEO: {
+ int current_sector = AV_RL16(&sector[0x1C]);
+ int sector_count = AV_RL16(&sector[0x1E]);
+ int frame_size = AV_RL32(&sector[0x24]);
+
+ if(!( frame_size>=0
+ && current_sector < sector_count
+ && sector_count*VIDEO_DATA_CHUNK_SIZE >=frame_size)){
+ return 0;
+ }
+ /*st->codec->width = AV_RL16(&sector[0x28]);
+ st->codec->height = AV_RL16(&sector[0x2A]);*/
+
+// if (current_sector == sector_count-1) {
+ vid++;
+// }
+
+ }
+ break;
+ case CDXA_TYPE_AUDIO:
+ if(sector[0x13]&0x2A)
+ return 0;
+ aud++;
+ break;
+ default:
+ if(sector[0x12] & CDXA_TYPE_MASK)
+ return 0;
+ }
+ sector += RAW_CD_SECTOR_SIZE;
+ }
/* MPEG files (like those ripped from VCDs) can also look like this;
* only return half certainty */
- return 50;
+ if(vid+aud > 3) return 50;
+ else if(vid+aud) return 1;
+ else return 0;
}
static int str_read_header(AVFormatContext *s,