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avformat/asfdec_f: factor error checking out of main header parsing loop 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
John Adlum 2015-07-01 23:21:53 +02:00 committed by Michael Niedermayer
parent a1c03b9d58
commit c8eca438a9
1 changed files with 6 additions and 7 deletions
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13
libavformat/asfdec_f.c
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@ -779,6 +779,7 @@ static int asf_read_header(AVFormatContext *s)
for (;;) {
uint64_t gpos = avio_tell(pb);
int ret = 0;
ff_get_guid(pb, &g);
gsize = avio_rl64(pb);
print_guid(&g);
@ -795,13 +796,9 @@ static int asf_read_header(AVFormatContext *s)
if (gsize < 24)
return AVERROR_INVALIDDATA;
if (!ff_guidcmp(&g, &ff_asf_file_header)) {
int ret = asf_read_file_properties(s, gsize);
if (ret < 0)
return ret;
ret = asf_read_file_properties(s, gsize);
} else if (!ff_guidcmp(&g, &ff_asf_stream_header)) {
int ret = asf_read_stream_properties(s, gsize);
if (ret < 0)
return ret;
ret = asf_read_stream_properties(s, gsize);
} else if (!ff_guidcmp(&g, &ff_asf_comment_header)) {
asf_read_content_desc(s, gsize);
} else if (!ff_guidcmp(&g, &ff_asf_language_guid)) {
@ -830,7 +827,6 @@ static int asf_read_header(AVFormatContext *s)
if (!s->keylen) {
if (!ff_guidcmp(&g, &ff_asf_content_encryption)) {
unsigned int len;
int ret;
AVPacket pkt;
av_log(s, AV_LOG_WARNING,
"DRM protected stream detected, decoding will likely fail!\n");
@ -856,6 +852,9 @@ static int asf_read_header(AVFormatContext *s)
}
}
}
if (ret < 0)
return ret;
if (avio_tell(pb) != gpos + gsize)
av_log(s, AV_LOG_DEBUG,
"gpos mismatch our pos=%"PRIu64", end=%"PRId64"\n",