breeze/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2026-02-04 14:30:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

avformat/mov: check that child boxes of trak are only present inside it

Browse Source 
Based on the check done for the stco box.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2024-06-28 21:06:54 -03:00
parent 2aa63784b5
commit e7d3ff8dcd
1 changed files with 30 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
libavformat/mov.c
View File

@@ -3145,6 +3145,11 @@ static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
MOVStreamContext *sc;
unsigned int i, entries;
if (c->trak_index < 0) {
av_log(c->fc, AV_LOG_WARNING, "STSC outside TRAK\n");
return 0;
}
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
@@ -3241,6 +3246,11 @@ static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
MOVStreamContext *sc;
unsigned i, entries;
if (c->trak_index < 0) {
av_log(c->fc, AV_LOG_WARNING, "STPS outside TRAK\n");
return 0;
}
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
@@ -3278,6 +3288,11 @@ static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
MOVStreamContext *sc;
unsigned int i, entries;
if (c->trak_index < 0) {
av_log(c->fc, AV_LOG_WARNING, "STSS outside TRAK\n");
return 0;
}
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
@@ -3330,6 +3345,11 @@ static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
unsigned char* buf;
int ret;
if (c->trak_index < 0) {
av_log(c->fc, AV_LOG_WARNING, "STSZ outside TRAK\n");
return 0;
}
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
@@ -3419,6 +3439,11 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
int64_t current_dts = 0;
int64_t corrected_dts = 0;
if (c->trak_index < 0) {
av_log(c->fc, AV_LOG_WARNING, "STTS outside TRAK\n");
return 0;
}
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
@@ -3575,6 +3600,11 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
MOVStreamContext *sc;
unsigned int i, entries, ctts_count = 0;
if (c->trak_index < 0) {
av_log(c->fc, AV_LOG_WARNING, "CTTS outside TRAK\n");
return 0;
}
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];