static av_cold int pcm_encode_init(AVCodecContext *avctx) { avctx->frame_size = 0; switch(avctx->codec->id) { case CODEC_ID_PCM_ALAW: pcm_alaw_tableinit(); break; case CODEC_ID_PCM_MULAW: pcm_ulaw_tableinit(); break; default: break; } avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id); avctx->block_align = avctx->channels * avctx->bits_per_coded_sample/8; avctx->coded_frame= avcodec_alloc_frame(); return 0; }