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thp: simplify overallocate checks.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-16 06:02:14 +01:00
parent 47572323f2
commit a000975444
1 changed files with 3 additions and 13 deletions
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16
libavformat/thp.c
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@ -26,7 +26,6 @@
typedef struct ThpDemuxContext {
int version;
unsigned data_size;
int first_frame;
int first_framesz;
int last_frame;
@ -74,9 +73,9 @@ static int thp_read_header(AVFormatContext *s,
thp->fps = av_d2q(av_int2float(avio_rb32(pb)), INT_MAX);
thp->framecnt = avio_rb32(pb);
thp->first_framesz = avio_rb32(pb);
thp->data_size = avio_rb32(pb);
if(fsize>0 && (!thp->data_size || fsize < thp->data_size))
thp->data_size= fsize;
pb->maxsize = avio_rb32(pb);
if(fsize>0 && (!pb->maxsize || fsize < pb->maxsize))
pb->maxsize= fsize;
thp->compoff = avio_rb32(pb);
avio_rb32(pb); /* offsetDataOffset. */
@ -163,10 +162,6 @@ static int thp_read_packet(AVFormatContext *s,
avio_rb32(pb); /* Previous total size. */
size = avio_rb32(pb); /* Total size of this frame. */
if(thp->data_size && avio_tell(pb) + size > thp->data_size) {
av_log(s, AV_LOG_ERROR, "Video packet truncated\n");
size= thp->data_size - avio_tell(pb);
}
/* Store the audiosize so the next time this function is called,
the audio can be read. */
@ -183,11 +178,6 @@ static int thp_read_packet(AVFormatContext *s,
pkt->stream_index = thp->video_stream_index;
} else {
if(thp->data_size && avio_tell(pb) + thp->audiosize > thp->data_size){
av_log(s, AV_LOG_ERROR, "Audio packet truncated\n");
thp->audiosize= thp->data_size - avio_tell(pb);
}
ret = av_get_packet(pb, pkt, thp->audiosize);
if (ret != thp->audiosize) {
av_free_packet(pkt);