diff options
Diffstat (limited to 'src/pcm_resample.h')
| -rw-r--r-- | src/pcm_resample.h | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/src/pcm_resample.h b/src/pcm_resample.h index 24d17ff9b..24fa1d044 100644 --- a/src/pcm_resample.h +++ b/src/pcm_resample.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2003-2010 The Music Player Daemon Project + * Copyright (C) 2003-2011 The Music Player Daemon Project * http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify @@ -45,7 +45,7 @@ struct pcm_resample_state { struct { unsigned src_rate; unsigned dest_rate; - uint8_t channels; + unsigned channels; } prev; int error; @@ -54,6 +54,9 @@ struct pcm_resample_state { struct pcm_buffer buffer; }; +bool +pcm_resample_global_init(GError **error_r); + /** * Initializes a pcm_resample_state object. */ @@ -66,6 +69,26 @@ void pcm_resample_init(struct pcm_resample_state *state); void pcm_resample_deinit(struct pcm_resample_state *state); /** + * Resamples 32 bit float data. + * + * @param state an initialized pcm_resample_state object + * @param channels the number of channels + * @param src_rate the source sample rate + * @param src the source PCM buffer + * @param src_size the size of #src in bytes + * @param dest_rate the requested destination sample rate + * @param dest_size_r returns the number of bytes of the destination buffer + * @return the destination buffer + */ +const float * +pcm_resample_float(struct pcm_resample_state *state, + unsigned channels, + unsigned src_rate, + const float *src_buffer, size_t src_size, + unsigned dest_rate, size_t *dest_size_r, + GError **error_r); + +/** * Resamples 16 bit PCM data. * * @param state an initialized pcm_resample_state object @@ -79,7 +102,7 @@ void pcm_resample_deinit(struct pcm_resample_state *state); */ const int16_t * pcm_resample_16(struct pcm_resample_state *state, - uint8_t channels, + unsigned channels, unsigned src_rate, const int16_t *src_buffer, size_t src_size, unsigned dest_rate, size_t *dest_size_r, @@ -99,7 +122,7 @@ pcm_resample_16(struct pcm_resample_state *state, */ const int32_t * pcm_resample_32(struct pcm_resample_state *state, - uint8_t channels, + unsigned channels, unsigned src_rate, const int32_t *src_buffer, size_t src_size, unsigned dest_rate, size_t *dest_size_r, @@ -119,7 +142,7 @@ pcm_resample_32(struct pcm_resample_state *state, */ static inline const int32_t * pcm_resample_24(struct pcm_resample_state *state, - uint8_t channels, + unsigned channels, unsigned src_rate, const int32_t *src_buffer, size_t src_size, unsigned dest_rate, size_t *dest_size_r, |