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Make SBC parameters configurable

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This commit is contained in:
Marcel Holtmann 2005-05-18 14:47:49 +00:00
parent 51efc88dd3
commit 3d6b20f583
2 changed files with 16 additions and 4 deletions
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17
alsa/sbc.c
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@ -1225,6 +1225,12 @@ int sbc_init(sbc_t *sbc, unsigned long flags)
memset(sbc->priv, 0, sizeof(struct sbc_priv)); memset(sbc->priv, 0, sizeof(struct sbc_priv));
sbc->rate = 44100;
sbc->channels = 2;
sbc->subbands = 8;
sbc->blocks = 16;
sbc->bitpool = 32;
return 0; return 0;
} }
@ -1245,8 +1251,11 @@ int sbc_decode(sbc_t *sbc, void *data, int count)
sbc_decoder_init(&priv->dec_state, &priv->frame); sbc_decoder_init(&priv->dec_state, &priv->frame);
priv->init = 1; priv->init = 1;
sbc->rate = priv->frame.sampling_frequency * 1000; sbc->rate = priv->frame.sampling_frequency * 1000;
sbc->channels = priv->frame.channels; sbc->channels = priv->frame.channels;
sbc->subbands = priv->frame.subbands;
sbc->blocks = priv->frame.blocks;
sbc->bitpool = priv->frame.bitpool;
} }
samples = sbc_synthesize_audio(&priv->dec_state, &priv->frame); samples = sbc_synthesize_audio(&priv->dec_state, &priv->frame);
@ -1304,9 +1313,9 @@ int sbc_encode(sbc_t *sbc, void *data, int count)
priv->frame.channel_mode = MONO; priv->frame.channel_mode = MONO;
priv->frame.allocation_method = SNR; priv->frame.allocation_method = SNR;
priv->frame.subbands = 8; priv->frame.subbands = sbc->subbands;
priv->frame.blocks = 16; priv->frame.blocks = sbc->blocks;
priv->frame.bitpool = 32; priv->frame.bitpool = sbc->bitpool;
sbc_encoder_init(&priv->enc_state, &priv->frame); sbc_encoder_init(&priv->enc_state, &priv->frame);
priv->init = 1; priv->init = 1;

3
alsa/sbc.h
View File

@ -36,6 +36,9 @@ struct sbc_struct {
int rate; int rate;
int channels; int channels;
int blocks;
int subbands;
int bitpool;
void *data; void *data;
int size; int size;