From 725e48fce4e4ad08a2a9aa0a64c3e79df5636108 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Sat, 8 Oct 2011 13:41:39 +0200 Subject: pcm_resample: add function pcm_resample_float() A version of the resampler that doesn't need int->float->int conversion. --- src/pcm_resample.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'src/pcm_resample.c') diff --git a/src/pcm_resample.c b/src/pcm_resample.c index 26f1431e8..892d1c633 100644 --- a/src/pcm_resample.c +++ b/src/pcm_resample.c @@ -76,6 +76,34 @@ 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, unsigned channels, -- cgit v1.2.3