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Make repacketizer API use opus_int32 for lengths and add some additional error handling.

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This commit is contained in:
Gregory Maxwell 2011-10-10 01:02:14 -04:00
parent 854fe70352
commit 3346d88390
2 changed files with 14 additions and 10 deletions
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4
src/opus.h
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@ -493,11 +493,11 @@ OPUS_EXPORT void opus_repacketizer_destroy(OpusRepacketizer *rp);
OPUS_EXPORT int opus_repacketizer_cat(OpusRepacketizer *rp, const unsigned char *data, int len);
OPUS_EXPORT int opus_repacketizer_out_range(OpusRepacketizer *rp, int begin, int end, unsigned char *data, int maxlen);
OPUS_EXPORT opus_int32 opus_repacketizer_out_range(OpusRepacketizer *rp, int begin, int end, unsigned char *data, int maxlen);
OPUS_EXPORT int opus_repacketizer_get_nb_frames(OpusRepacketizer *rp);
OPUS_EXPORT int opus_repacketizer_out(OpusRepacketizer *rp, unsigned char *data, int maxlen);
OPUS_EXPORT opus_int32 opus_repacketizer_out(OpusRepacketizer *rp, unsigned char *data, int maxlen);
/**@}*/

20
src/repacketizer.c
View file

@ -70,26 +70,29 @@ void opus_repacketizer_destroy(OpusRepacketizer *rp)
int opus_repacketizer_cat(OpusRepacketizer *rp, const unsigned char *data, int len)
{
unsigned char tmp_toc;
int curr_nb_frames;
int curr_nb_frames,ret;
/* Set of check ToC */
if (len<1) return OPUS_INVALID_PACKET;
if (rp->nb_frames == 0)
{
rp->toc = data[0];
rp->framesize = opus_packet_get_samples_per_frame(data, 48000);
rp->framesize = opus_packet_get_samples_per_frame(data, 8000);
} else if ((rp->toc&0xFC) != (data[0]&0xFC))
{
/*fprintf(stderr, "toc mismatch: 0x%x vs 0x%x\n", rp->toc, data[0]);*/
return OPUS_INVALID_PACKET;
}
curr_nb_frames = opus_packet_get_nb_frames(data, len);
if(curr_nb_frames<1) return OPUS_INVALID_PACKET;
/* Check the 120 ms maximum packet size */
if ((curr_nb_frames+rp->nb_frames)*rp->framesize > 5760)
if ((curr_nb_frames+rp->nb_frames)*rp->framesize > 960)
{
return OPUS_INVALID_PACKET;
}
opus_packet_parse(data, len, &tmp_toc, &rp->frames[rp->nb_frames], &rp->len[rp->nb_frames], NULL);
ret=opus_packet_parse(data, len, &tmp_toc, &rp->frames[rp->nb_frames], &rp->len[rp->nb_frames], NULL);
if(ret<1)return ret;
rp->nb_frames += curr_nb_frames;
return OPUS_OK;
@ -100,9 +103,10 @@ int opus_repacketizer_get_nb_frames(OpusRepacketizer *rp)
return rp->nb_frames;
}
int opus_repacketizer_out_range_impl(OpusRepacketizer *rp, int begin, int end, unsigned char *data, int maxlen, int self_delimited)
opus_int32 opus_repacketizer_out_range_impl(OpusRepacketizer *rp, int begin, int end, unsigned char *data, opus_int32 maxlen, int self_delimited)
{
int i, count, tot_size;
int i, count;
opus_int32 tot_size;
short *len;
const unsigned char **frames;
@ -198,12 +202,12 @@ int opus_repacketizer_out_range_impl(OpusRepacketizer *rp, int begin, int end, u
return tot_size;
}
int opus_repacketizer_out_range(OpusRepacketizer *rp, int begin, int end, unsigned char *data, int maxlen)
opus_int32 opus_repacketizer_out_range(OpusRepacketizer *rp, int begin, int end, unsigned char *data, opus_int32 maxlen)
{
return opus_repacketizer_out_range_impl(rp, begin, end, data, maxlen, 0);
}
int opus_repacketizer_out(OpusRepacketizer *rp, unsigned char *data, int maxlen)
opus_int32 opus_repacketizer_out(OpusRepacketizer *rp, unsigned char *data, opus_int32 maxlen)
{
return opus_repacketizer_out_range_impl(rp, 0, rp->nb_frames, data, maxlen, 0);
}