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swr: fix the noise sample type for noise shaping 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-09 23:20:24 +01:00
parent 3ef06f3415
commit 6908ded20e
3 changed files with 12 additions and 11 deletions
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19
libswresample/dither.c
View File

@ -23,15 +23,12 @@
#include "noise_shaping_data.c"
void swri_get_dither(SwrContext *s, void *dst, int len, unsigned seed, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt) {
void swri_get_dither(SwrContext *s, void *dst, int len, unsigned seed, enum AVSampleFormat noise_fmt) {
double scale = s->dither.ns_scale;
#define TMP_EXTRA 2
double *tmp = av_malloc((len + TMP_EXTRA) * sizeof(double));
int i;
out_fmt = av_get_packed_sample_fmt(out_fmt);
in_fmt = av_get_packed_sample_fmt( in_fmt);
for(i=0; i<len + TMP_EXTRA; i++){
double v;
seed = seed* 1664525 + 1013904223;
@ -63,11 +60,11 @@ void swri_get_dither(SwrContext *s, void *dst, int len, unsigned seed, enum AVSa
v*= scale;
switch(in_fmt){
case AV_SAMPLE_FMT_S16: ((int16_t*)dst)[i] = v; break;
case AV_SAMPLE_FMT_S32: ((int32_t*)dst)[i] = v; break;
case AV_SAMPLE_FMT_FLT: ((float *)dst)[i] = v; break;
case AV_SAMPLE_FMT_DBL: ((double *)dst)[i] = v; break;
switch(noise_fmt){
case AV_SAMPLE_FMT_S16P: ((int16_t*)dst)[i] = v; break;
case AV_SAMPLE_FMT_S32P: ((int32_t*)dst)[i] = v; break;
case AV_SAMPLE_FMT_FLTP: ((float *)dst)[i] = v; break;
case AV_SAMPLE_FMT_DBLP: ((double *)dst)[i] = v; break;
default: av_assert0(0);
}
}
@ -117,6 +114,10 @@ int swri_dither_init(SwrContext *s, enum AVSampleFormat out_fmt, enum AVSampleFo
}
s->dither.noise = s->preout;
if (s->dither.method > SWR_DITHER_NS) {
s->dither.noise.bps = 4;
s->dither.noise.fmt = AV_SAMPLE_FMT_FLTP;
}
return 0;
}

2
libswresample/swresample.c
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@ -654,7 +654,7 @@ static int swr_convert_internal(struct SwrContext *s, AudioData *out, int out_co
return ret;
if(ret)
for(ch=0; ch<s->dither.noise.ch_count; ch++)
swri_get_dither(s, s->dither.noise.ch[ch], s->dither.noise.count, 12345678913579<<ch, s->out_sample_fmt, s->int_sample_fmt);
swri_get_dither(s, s->dither.noise.ch[ch], s->dither.noise.count, 12345678913579<<ch, s->dither.noise.fmt);
av_assert0(s->dither.noise.ch_count == preout->ch_count);
if(s->dither.dither_pos + out_count > s->dither.noise.count)

2
libswresample/swresample_internal.h
View File

@ -176,7 +176,7 @@ void swri_rematrix_free(SwrContext *s);
int swri_rematrix(SwrContext *s, AudioData *out, AudioData *in, int len, int mustcopy);
void swri_rematrix_init_x86(struct SwrContext *s);
void swri_get_dither(SwrContext *s, void *dst, int len, unsigned seed, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt);
void swri_get_dither(SwrContext *s, void *dst, int len, unsigned seed, enum AVSampleFormat noise_fmt);
int swri_dither_init(SwrContext *s, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt);
void swri_audio_convert_init_arm(struct AudioConvert *ac,