diff options
Diffstat (limited to 'src/pcm_utils.c')
| -rw-r--r-- | src/pcm_utils.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/src/pcm_utils.c b/src/pcm_utils.c index bd7fc048..8d5bed99 100644 --- a/src/pcm_utils.c +++ b/src/pcm_utils.c @@ -208,6 +208,8 @@ void pcm_mix(char *buffer1, const char *buffer2, size_t size, void pcm_convert_init(struct pcm_convert_state *state) { memset(state, 0, sizeof(*state)); + + pcm_dither_24_init(&state->dither); } #ifdef HAVE_LIBSAMPLERATE @@ -457,17 +459,16 @@ pcm_convert_8_to_16(int16_t *out, const int8_t *in, } static void -pcm_convert_24_to_16(int16_t *out, const int32_t *in, +pcm_convert_24_to_16(struct pcm_dither_24 *dither, + int16_t *out, const int32_t *in, unsigned num_samples) { - while (num_samples > 0) { - *out++ = *in++ >> 8; - --num_samples; - } + pcm_dither_24_to_16(dither, out, in, num_samples); } static const int16_t * -pcm_convert_to_16(uint8_t bits, const void *src, +pcm_convert_to_16(struct pcm_convert_state *convert, + uint8_t bits, const void *src, size_t src_size, size_t *dest_size_r) { static int16_t *buf; @@ -500,7 +501,8 @@ pcm_convert_to_16(uint8_t bits, const void *src, buf = xrealloc(buf, len); } - pcm_convert_24_to_16((int16_t *)buf, + pcm_convert_24_to_16(&convert->dither, + (int16_t *)buf, (const int32_t *)src, num_samples); return buf; @@ -524,7 +526,7 @@ size_t pcm_convert(const struct audio_format *inFormat, assert(outFormat->bits == 16); /* everything else supports 16 bit only, so convert to that first */ - buf = pcm_convert_to_16(inFormat->bits, src, src_size, &len); + buf = pcm_convert_to_16(convState, inFormat->bits, src, src_size, &len); if (!buf) exit(EXIT_FAILURE); |