static int genh_read_packet(AVFormatContext *s, AVPacket *pkt) { AVCodecContext *codec = s->streams[0]->codec; GENHDemuxContext *c = s->priv_data; int ret; if (c->dsp_int_type == 1 && codec->codec_id == AV_CODEC_ID_ADPCM_THP && codec->channels > 1) { int i, ch; if (avio_feof(s->pb)) return AVERROR_EOF; av_new_packet(pkt, 8 * codec->channels); for (i = 0; i < 8 / c->interleave_size; i++) { for (ch = 0; ch < codec->channels; ch++) { pkt->data[ch * 8 + i*c->interleave_size+0] = avio_r8(s->pb); pkt->data[ch * 8 + i*c->interleave_size+1] = avio_r8(s->pb); } } ret = 0; } else { ret = av_get_packet(s->pb, pkt, codec->block_align ? codec->block_align : 1024 * codec->channels); } pkt->stream_index = 0; return ret; }