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avcodec/vorbisdec: Move ff_vorbis_inverse_coupling() to vorbisdsp.c

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Only used there. Also make it static.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2022-09-19 19:13:28 +02:00
parent 5c15cb138e
commit 32129d6495
3 changed files with 24 additions and 26 deletions
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1
libavcodec/vorbis.h
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@@ -45,7 +45,6 @@ int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, unsigned num);
void ff_vorbis_floor1_render_list(vorbis_floor1_entry * list, int values, void ff_vorbis_floor1_render_list(vorbis_floor1_entry * list, int values,
uint16_t *y_list, int *flag, uint16_t *y_list, int *flag,
int multiplier, float * out, int samples); int multiplier, float * out, int samples);
void ff_vorbis_inverse_coupling(float *mag, float *ang, ptrdiff_t blocksize);
#define ilog(i) av_log2(2*(i)) #define ilog(i) av_log2(2*(i))

23
libavcodec/vorbisdec.c
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@@ -1579,29 +1579,6 @@ static inline int vorbis_residue_decode(vorbis_context *vc, vorbis_residue *vr,
} }
} }
void ff_vorbis_inverse_coupling(float *mag, float *ang, ptrdiff_t blocksize)
{
for (ptrdiff_t i = 0; i < blocksize; i++) {
float angi = ang[i], magi = mag[i];
if (magi > 0.f) {
if (angi > 0.f) {
ang[i] = magi - angi;
} else {
ang[i] = magi;
mag[i] = magi + angi;
}
} else {
if (angi > 0.f) {
ang[i] = magi + angi;
} else {
ang[i] = magi;
mag[i] = magi - angi;
}
}
}
}
// Decode the audio packet using the functions above // Decode the audio packet using the functions above
static int vorbis_parse_audio_packet(vorbis_context *vc, float **floor_ptr) static int vorbis_parse_audio_packet(vorbis_context *vc, float **floor_ptr)

26
libavcodec/vorbisdsp.c
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@@ -19,11 +19,33 @@
#include "config.h" #include "config.h"
#include "libavutil/attributes.h" #include "libavutil/attributes.h"
#include "vorbisdsp.h" #include "vorbisdsp.h"
#include "vorbis.h"
static void vorbis_inverse_coupling_c(float *mag, float *ang, ptrdiff_t blocksize)
{
for (ptrdiff_t i = 0; i < blocksize; i++) {
float angi = ang[i], magi = mag[i];
if (magi > 0.f) {
if (angi > 0.f) {
ang[i] = magi - angi;
} else {
ang[i] = magi;
mag[i] = magi + angi;
}
} else {
if (angi > 0.f) {
ang[i] = magi + angi;
} else {
ang[i] = magi;
mag[i] = magi - angi;
}
}
}
}
av_cold void ff_vorbisdsp_init(VorbisDSPContext *dsp) av_cold void ff_vorbisdsp_init(VorbisDSPContext *dsp)
{ {
dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling; dsp->vorbis_inverse_coupling = vorbis_inverse_coupling_c;
#if ARCH_AARCH64 #if ARCH_AARCH64
ff_vorbisdsp_init_aarch64(dsp); ff_vorbisdsp_init_aarch64(dsp);