diff options
Diffstat (limited to 'src/pcm_resample.c')
| -rw-r--r-- | src/pcm_resample.c | 71 |
1 files changed, 58 insertions, 13 deletions
diff --git a/src/pcm_resample.c b/src/pcm_resample.c index 4a7578e09..892d1c633 100644 --- a/src/pcm_resample.c +++ b/src/pcm_resample.c @@ -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 @@ -27,26 +27,43 @@ #include <string.h> #ifdef HAVE_LIBSAMPLERATE +static bool lsr_enabled; +#endif + +#ifdef HAVE_LIBSAMPLERATE static bool pcm_resample_lsr_enabled(void) { - return strcmp(config_get_string(CONF_SAMPLERATE_CONVERTER, ""), - "internal") != 0; + return lsr_enabled; } #endif -void pcm_resample_init(struct pcm_resample_state *state) +bool +pcm_resample_global_init(GError **error_r) { - memset(state, 0, sizeof(*state)); - #ifdef HAVE_LIBSAMPLERATE - if (pcm_resample_lsr_enabled()) { - pcm_buffer_init(&state->in); - pcm_buffer_init(&state->out); - } + const char *converter = + config_get_string(CONF_SAMPLERATE_CONVERTER, ""); + + lsr_enabled = strcmp(converter, "internal") != 0; + if (lsr_enabled) + return pcm_resample_lsr_global_init(converter, error_r); + else + return true; +#else + (void)error_r; + return true; #endif +} - pcm_buffer_init(&state->buffer); +void pcm_resample_init(struct pcm_resample_state *state) +{ +#ifdef HAVE_LIBSAMPLERATE + if (pcm_resample_lsr_enabled()) + pcm_resample_lsr_init(state); + else +#endif + pcm_resample_fallback_init(state); } void pcm_resample_deinit(struct pcm_resample_state *state) @@ -59,9 +76,37 @@ void pcm_resample_deinit(struct pcm_resample_state *state) pcm_resample_fallback_deinit(state); } +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) +{ +#ifdef HAVE_LIBSAMPLERATE + if (pcm_resample_lsr_enabled()) + return pcm_resample_lsr_float(state, channels, + src_rate, src_buffer, src_size, + dest_rate, dest_size_r, + error_r); +#else + (void)error_r; +#endif + + /* sizeof(float)==sizeof(int32_t); the fallback resampler does + not do any math on the sample values, so this hack is + possible: */ + return (const float *) + pcm_resample_fallback_32(state, channels, + src_rate, (const int32_t *)src_buffer, + src_size, + dest_rate, dest_size_r); +} + 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, GError **error_r) @@ -83,7 +128,7 @@ 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, GError **error_r) |