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mpegts: Forward the errors on mpeg4 objects parsing

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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Luca Barbato 2016-02-17 02:23:02 +01:00
parent 07a844f32e
commit 9765549f55
1 changed files with 16 additions and 9 deletions
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25
libavformat/mpegts.c
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@ -1112,6 +1112,8 @@ static int parse_MP4ODescrTag(MP4DescrParseContext *d, int64_t off, int len)
static int parse_MP4ESDescrTag(MP4DescrParseContext *d, int64_t off, int len)
{
int es_id = 0;
int ret = 0;
if (d->descr_count >= d->max_descr_count)
return AVERROR_INVALIDDATA;
ff_mp4_parse_es_descr(&d->pb, &es_id);
@ -1119,12 +1121,13 @@ static int parse_MP4ESDescrTag(MP4DescrParseContext *d, int64_t off, int len)
d->active_descr->es_id = es_id;
update_offsets(&d->pb, &off, &len);
parse_mp4_descr(d, off, len, MP4DecConfigDescrTag);
if ((ret = parse_mp4_descr(d, off, len, MP4DecConfigDescrTag)) < 0)
return ret;
update_offsets(&d->pb, &off, &len);
if (len > 0)
parse_mp4_descr(d, off, len, MP4SLDescrTag);
ret = parse_mp4_descr(d, off, len, MP4SLDescrTag);
d->active_descr = NULL;
return 0;
return ret;
}
static int parse_MP4DecConfigDescrTag(MP4DescrParseContext *d, int64_t off,
@ -1179,6 +1182,8 @@ static int parse_mp4_descr(MP4DescrParseContext *d, int64_t off, int len,
{
int tag;
int len1 = ff_mp4_read_descr(d->s, &d->pb, &tag);
int ret = 0;
update_offsets(&d->pb, &off, &len);
if (len < 0 || len1 > len || len1 <= 0) {
av_log(d->s, AV_LOG_ERROR,
@ -1189,30 +1194,32 @@ static int parse_mp4_descr(MP4DescrParseContext *d, int64_t off, int len,
if (d->level++ >= MAX_LEVEL) {
av_log(d->s, AV_LOG_ERROR, "Maximum MP4 descriptor level exceeded\n");
ret = AVERROR_INVALIDDATA;
goto done;
}
if (target_tag && tag != target_tag) {
av_log(d->s, AV_LOG_ERROR, "Found tag %x expected %x\n", tag,
target_tag);
ret = AVERROR_INVALIDDATA;
goto done;
}
switch (tag) {
case MP4IODescrTag:
parse_MP4IODescrTag(d, off, len1);
ret = parse_MP4IODescrTag(d, off, len1);
break;
case MP4ODescrTag:
parse_MP4ODescrTag(d, off, len1);
ret = parse_MP4ODescrTag(d, off, len1);
break;
case MP4ESDescrTag:
parse_MP4ESDescrTag(d, off, len1);
ret = parse_MP4ESDescrTag(d, off, len1);
break;
case MP4DecConfigDescrTag:
parse_MP4DecConfigDescrTag(d, off, len1);
ret = parse_MP4DecConfigDescrTag(d, off, len1);
break;
case MP4SLDescrTag:
parse_MP4SLDescrTag(d, off, len1);
ret = parse_MP4SLDescrTag(d, off, len1);
break;
}
@ -1220,7 +1227,7 @@ static int parse_mp4_descr(MP4DescrParseContext *d, int64_t off, int len,
done:
d->level--;
avio_seek(&d->pb, off + len1, SEEK_SET);
return 0;
return ret;
}
static int mp4_read_iods(AVFormatContext *s, const uint8_t *buf, unsigned size,