int ff_pcm_read_packet(AVFormatContext *s, AVPacket *pkt) { int ret, size; size= RAW_SAMPLES*s->streams[0]->codec->block_align; if (size <= 0) return AVERROR(EINVAL); ret= av_get_packet(s->pb, pkt, size); pkt->flags &= ~AV_PKT_FLAG_CORRUPT; pkt->stream_index = 0; if (ret < 0) return ret; return ret; }