static int amr_nb_decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) { const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; AMRContext *s = avctx->priv_data; static const uint8_t block_size[16] = { 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 }; enum Mode dec_mode; int packet_size; av_dlog(avctx, "amr_decode_frame buf=%p buf_size=%d frame_count=%d!!\n", buf, buf_size, avctx->frame_number); dec_mode = (buf[0] >> 3) & 0x000F; packet_size = block_size[dec_mode] + 1; if (packet_size > buf_size) { av_log(avctx, AV_LOG_ERROR, "amr frame too short (%u, should be %u)\n", buf_size, packet_size); return AVERROR_INVALIDDATA; } av_dlog(avctx, "packet_size=%d buf= 0x%X %X %X %X\n", packet_size, buf[0], buf[1], buf[2], buf[3]); /* call decoder */ Decoder_Interface_Decode(s->dec_state, buf, data, 0); *data_size = 160 * 2; return packet_size; }