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Return an error when get_buffer reads none or only partial data instead 

of returning packets with uninitialized data.
Returning partial packets as for other demuxers is problematice due to
packet scrambling and thus is not done.

Originally committed as revision 25931 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2010-12-11 21:41:47 +00:00
parent 3c3ef81b9b
commit 4172951ba7
1 changed files with 5 additions and 2 deletions
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7
libavformat/asfdec.c
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@ -848,6 +848,7 @@ static int ff_asf_parse_packet(AVFormatContext *s, ByteIOContext *pb, AVPacket *
ASFContext *asf = s->priv_data;
ASFStream *asf_st = 0;
for (;;) {
int ret;
if(url_feof(pb))
return AVERROR_EOF;
if (asf->packet_size_left < FRAME_HEADER_SIZE
@ -950,8 +951,10 @@ static int ff_asf_parse_packet(AVFormatContext *s, ByteIOContext *pb, AVPacket *
continue;
}
get_buffer(pb, asf_st->pkt.data + asf->packet_frag_offset,
asf->packet_frag_size);
ret = get_buffer(pb, asf_st->pkt.data + asf->packet_frag_offset,
asf->packet_frag_size);
if (ret != asf->packet_frag_size)
return ret >= 0 ? AVERROR_EOF : ret;
if (s->key && s->keylen == 20)
ff_asfcrypt_dec(s->key, asf_st->pkt.data + asf->packet_frag_offset,
asf->packet_frag_size);