Macros | Functions | Variables
avresample-test.c File Reference
#include <stdint.h>
#include <stdio.h>
#include "libavutil/avstring.h"
#include "libavutil/common.h"
#include "libavutil/lfg.h"
#include "libavutil/libm.h"
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "avresample.h"
Include dependency graph for avresample-test.c:

Go to the source code of this file.

Macros

#define PUT_FUNC(name, fmt, type, expr)
 
#define PUT_SAMPLE   put_sample(data, sample_fmt, channels, k, ch, v);
 

Functions

static double dbl_rand (AVLFG *lfg)
 
 PUT_FUNC (u8, AV_SAMPLE_FMT_U8, uint8_t, av_clip_uint8(lrint(v_dbl *(1<< 7))+128))
 
static void audiogen (AVLFG *rnd, void **data, enum AVSampleFormat sample_fmt, int channels, int sample_rate, int nb_samples)
 
int main (int argc, char **argv)
 

Variables

static enum AVSampleFormat formats []
 
static const int rates []
 
static const uint64_t layouts []
 

Macro Definition Documentation

#define PUT_FUNC (   name,
  fmt,
  type,
  expr 
)
Value:
static void put_sample_ ## name(void **data, enum AVSampleFormat sample_fmt,\
int channels, int sample, int ch, \
double v_dbl) \
{ \
type v = expr; \
type **out = (type **)data; \
if (av_sample_fmt_is_planar(sample_fmt)) \
out[ch][sample] = v; \
else \
out[0][sample * channels + ch] = v; \
}
name
const char * name
Definition: avisynth_c.h:675
v
float v
Definition: avf_showspectrum.c:88
sample
#define sample
Definition: flacdsp_template.c:44
if
initialize output if(nPeaks >3)%at least 3 peaks in spectrum for trying to find f0 nf0peaks
data
Spectrum Plot time data
Definition: FFT of a Simple Sinusoid.m:14
av_sample_fmt_is_planar
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
Check if the sample format is planar.
Definition: samplefmt.c:118
type
#define type
AVSampleFormat
AVSampleFormat
Audio Sample Formats.
Definition: samplefmt.h:49
out
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31))))#define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac){}void ff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map){AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);return NULL;}return ac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;}int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){int use_generic=1;int len=in->nb_samples;int p;if(ac->dc){av_dlog(ac->avr,"%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> out
Definition: audio_convert.c:194

Definition at line 40 of file avresample-test.c.

#define PUT_SAMPLE   put_sample(data, sample_fmt, channels, k, ch, v);

Referenced by audiogen().

Function Documentation

static void audiogen ( AVLFG *  rnd,
void **  data,
enum AVSampleFormat  sample_fmt,
int  channels,
int  sample_rate,
int  nb_samples 
)
static

Definition at line 81 of file avresample-test.c.

Referenced by main().

static double dbl_rand ( AVLFG *  lfg)
static

Definition at line 35 of file avresample-test.c.

Referenced by audiogen().

int main ( int  argc,
char **  argv 
)

Definition at line 188 of file avresample-test.c.

PUT_FUNC ( u8  ,
AV_SAMPLE_FMT_U8  ,
uint8_t  ,
av_clip_uint8(lrint(v_dbl *(1<< 7))+128)   
)

Definition at line 53 of file avresample-test.c.

Variable Documentation

enum AVSampleFormat formats[]
static
Initial value:
= {
AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_S16P,
AV_SAMPLE_FMT_FLT,
AV_SAMPLE_FMT_S32P,
AV_SAMPLE_FMT_S32,
AV_SAMPLE_FMT_U8P,
AV_SAMPLE_FMT_U8,
AV_SAMPLE_FMT_DBLP,
AV_SAMPLE_FMT_DBL,
}
AV_SAMPLE_FMT_S16
signed 16 bits
Definition: samplefmt.h:52
AV_SAMPLE_FMT_U8
AV_SAMPLE_FMT_U8
Definition: audio_convert.c:194
AV_SAMPLE_FMT_S32P
signed 32 bits, planar
Definition: samplefmt.h:59
AV_SAMPLE_FMT_FLTP
float, planar
Definition: samplefmt.h:60
AV_SAMPLE_FMT_S32
signed 32 bits
Definition: samplefmt.h:53
AV_SAMPLE_FMT_U8P
unsigned 8 bits, planar
Definition: samplefmt.h:57
AV_SAMPLE_FMT_S16P
signed 16 bits, planar
Definition: samplefmt.h:58
AV_SAMPLE_FMT_DBLP
double, planar
Definition: samplefmt.h:61

Definition at line 162 of file avresample-test.c.

const uint64_t layouts[]
static
Initial value:
= {
AV_CH_LAYOUT_STEREO,
AV_CH_LAYOUT_MONO,
AV_CH_LAYOUT_5POINT1,
AV_CH_LAYOUT_7POINT1,
}
AV_CH_LAYOUT_7POINT1
#define AV_CH_LAYOUT_7POINT1
Definition: channel_layout.h:107
AV_CH_LAYOUT_STEREO
#define AV_CH_LAYOUT_STEREO
Definition: channel_layout.h:86
AV_CH_LAYOUT_5POINT1
#define AV_CH_LAYOUT_5POINT1
Definition: channel_layout.h:96
AV_CH_LAYOUT_MONO
#define AV_CH_LAYOUT_MONO
Definition: channel_layout.h:85

Definition at line 181 of file avresample-test.c.

const int rates[]
static
Initial value:
= {
48000,
44100,
16000
}

Definition at line 175 of file avresample-test.c.

Referenced by amr_decode_fix_avctx(), av_find_info_tag(), get_wb_bitrate_mode(), and query_formats().

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