diff options
Diffstat (limited to 'libmpdemux/asfheader.c')
| -rw-r--r-- | libmpdemux/asfheader.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libmpdemux/asfheader.c b/libmpdemux/asfheader.c index 3c91762f9c..0228dc87f9 100644 --- a/libmpdemux/asfheader.c +++ b/libmpdemux/asfheader.c @@ -591,24 +591,24 @@ int read_asf_header(demuxer_t *demuxer,struct asf_priv* asf){ // find content header pos = find_asf_guid(hdr, asf_stream_group_guid, 0, hdr_len); if (pos >= 0) { + int max_streams = (hdr_len - pos - 2) / 6; uint16_t stream_id, i; uint32_t max_bitrate; char *ptr = &hdr[pos]; mp_msg(MSGT_HEADER,MSGL_V,"============ ASF Stream group == START ===\n"); + if(max_streams <= 0) goto len_err_out; stream_count = AV_RL16(ptr); ptr += sizeof(uint16_t); - if (ptr > &hdr[hdr_len]) goto len_err_out; + if(stream_count > max_streams) stream_count = max_streams; if(stream_count > 0) streams = malloc(2*stream_count*sizeof(uint32_t)); mp_msg(MSGT_HEADER,MSGL_V," stream count=[0x%x][%u]\n", stream_count, stream_count ); for( i=0 ; i<stream_count ; i++ ) { stream_id = AV_RL16(ptr); ptr += sizeof(uint16_t); - if (ptr > &hdr[hdr_len]) goto len_err_out; memcpy(&max_bitrate, ptr, sizeof(uint32_t));// workaround unaligment bug on sparc max_bitrate = le2me_32(max_bitrate); ptr += sizeof(uint32_t); - if (ptr > &hdr[hdr_len]) goto len_err_out; mp_msg(MSGT_HEADER,MSGL_V," stream id=[0x%x][%u]\n", stream_id, stream_id ); mp_msg(MSGT_HEADER,MSGL_V," max bitrate=[0x%x][%u]\n", max_bitrate, max_bitrate ); streams[2*i] = stream_id; |