ret = ff_get_wav_header(pb, ast->codec, fsize);
if (ret < 0)
return ret;
+ if (ast->codec->sample_rate > 0)
+ avpriv_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
// find 'data' chunk
while(avio_tell(pb) < c->vidpos && !url_feof(pb)){
tag = avio_rl32(pb);