FFmpeg  4.3
mpegaudiodsp.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_MPEGAUDIODSP_H
20 #define AVCODEC_MPEGAUDIODSP_H
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 #include "libavutil/common.h"
26 
27 typedef struct MPADSPContext {
28  void (*apply_window_float)(float *synth_buf, float *window,
29  int *dither_state, float *samples,
30  ptrdiff_t incr);
32  int *dither_state, int16_t *samples,
33  ptrdiff_t incr);
34  void (*dct32_float)(float *dst, const float *src);
35  void (*dct32_fixed)(int *dst, const int *src);
36 
37  void (*imdct36_blocks_float)(float *out, float *buf, float *in,
38  int count, int switch_point, int block_type);
39  void (*imdct36_blocks_fixed)(int *out, int *buf, int *in,
40  int count, int switch_point, int block_type);
42 
44 
46 extern float ff_mpa_synth_window_float[];
47 
48 extern const int32_t ff_mpa_enwindow[257];
49 
51  int32_t *synth_buf_ptr, int *synth_buf_offset,
52  int32_t *window, int *dither_state,
53  int16_t *samples, ptrdiff_t incr,
54  int32_t *sb_samples);
55 
57  float *synth_buf_ptr, int *synth_buf_offset,
58  float *window, int *dither_state,
59  float *samples, ptrdiff_t incr,
60  float *sb_samples);
61 
68 
69 void ff_mpa_synth_init_float(float *window);
71 
72 void ff_mpadsp_apply_window_float(float *synth_buf, float *window,
73  int *dither_state, float *samples,
74  ptrdiff_t incr);
76  int *dither_state, int16_t *samples,
77  ptrdiff_t incr);
78 
79 void ff_imdct36_blocks_float(float *out, float *buf, float *in,
80  int count, int switch_point, int block_type);
81 
82 void ff_imdct36_blocks_fixed(int *out, int *buf, int *in,
83  int count, int switch_point, int block_type);
84 
85 void ff_init_mpadsp_tabs_float(void);
86 void ff_init_mpadsp_tabs_fixed(void);
87 
88 /** For SSE implementation, MDCT_BUF_SIZE/2 should be 128-bit aligned */
89 #define MDCT_BUF_SIZE FFALIGN(36, 2*4)
90 
91 extern int ff_mdct_win_fixed[8][MDCT_BUF_SIZE];
92 extern float ff_mdct_win_float[8][MDCT_BUF_SIZE];
93 
94 #endif /* AVCODEC_MPEGAUDIODSP_H */
out
FILE * out
Definition: movenc.c:54
ff_mdct_win_fixed
int ff_mdct_win_fixed[8][MDCT_BUF_SIZE]
Window for MDCT.
Definition: mpegaudiodsp_template.c:76
ff_imdct36_blocks_float
void ff_imdct36_blocks_float(float *out, float *buf, float *in, int count, int switch_point, int block_type)
MPADSPContext
Definition: mpegaudiodsp.h:27
samples
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new samples
Definition: fate.txt:139
window
static SDL_Window * window
Definition: ffplay.c:368
ff_mpa_synth_window_fixed
int32_t ff_mpa_synth_window_fixed[]
Definition: mpegaudiodsp_template.c:78
ff_mpa_synth_window_float
float ff_mpa_synth_window_float[]
MPADSPContext::imdct36_blocks_float
void(* imdct36_blocks_float)(float *out, float *buf, float *in, int count, int switch_point, int block_type)
Definition: mpegaudiodsp.h:37
ff_mpadsp_apply_window_float
void ff_mpadsp_apply_window_float(float *synth_buf, float *window, int *dither_state, float *samples, ptrdiff_t incr)
ff_mpadsp_init_mipsdsp
void ff_mpadsp_init_mipsdsp(MPADSPContext *s)
Definition: mpegaudiodsp_mips_fixed.c:910
ff_mpadsp_init_mipsfpu
void ff_mpadsp_init_mipsfpu(MPADSPContext *s)
Definition: mpegaudiodsp_mips_float.c:1252
s
#define s(width, name)
Definition: cbs_vp9.c:257
ff_imdct36_blocks_fixed
void ff_imdct36_blocks_fixed(int *out, int *buf, int *in, int count, int switch_point, int block_type)
ff_init_mpadsp_tabs_fixed
void ff_init_mpadsp_tabs_fixed(void)
ff_mpa_synth_filter_fixed
void ff_mpa_synth_filter_fixed(MPADSPContext *s, int32_t *synth_buf_ptr, int *synth_buf_offset, int32_t *window, int *dither_state, int16_t *samples, ptrdiff_t incr, int32_t *sb_samples)
int32_t
int32_t
Definition: audio_convert.c:194
src
#define src
Definition: vp8dsp.c:254
ff_mpa_synth_init_fixed
void ff_mpa_synth_init_fixed(int32_t *window)
ff_mpa_enwindow
const int32_t ff_mpa_enwindow[257]
Definition: mpegaudiodsp_data.c:22
ff_mpadsp_apply_window_fixed
void ff_mpadsp_apply_window_fixed(int32_t *synth_buf, int32_t *window, int *dither_state, int16_t *samples, ptrdiff_t incr)
ff_mpadsp_init_arm
void ff_mpadsp_init_arm(MPADSPContext *s)
Definition: mpegaudiodsp_init_arm.c:31
MPADSPContext::dct32_float
void(* dct32_float)(float *dst, const float *src)
Definition: mpegaudiodsp.h:34
MPADSPContext::dct32_fixed
void(* dct32_fixed)(int *dst, const int *src)
Definition: mpegaudiodsp.h:35
in
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=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);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_AARCH64) ff_audio_convert_init_aarch64(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_log(ac->avr, AV_LOG_TRACE, "%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-> in
Definition: audio_convert.c:326
ff_mpadsp_init_x86
void ff_mpadsp_init_x86(MPADSPContext *s)
Definition: mpegaudiodsp.c:242
common.h
void
typedef void(RENAME(mix_any_func_type))
Definition: rematrix_template.c:52
ff_mpadsp_init_aarch64
void ff_mpadsp_init_aarch64(MPADSPContext *s)
Definition: mpegaudiodsp_init.c:32
ff_mpadsp_init
void ff_mpadsp_init(MPADSPContext *s)
Definition: mpegaudiodsp.c:31
ff_mpa_synth_filter_float
void ff_mpa_synth_filter_float(MPADSPContext *s, float *synth_buf_ptr, int *synth_buf_offset, float *window, int *dither_state, float *samples, ptrdiff_t incr, float *sb_samples)
ff_init_mpadsp_tabs_float
void ff_init_mpadsp_tabs_float(void)
MDCT_BUF_SIZE
#define MDCT_BUF_SIZE
For SSE implementation, MDCT_BUF_SIZE/2 should be 128-bit aligned.
Definition: mpegaudiodsp.h:89
ff_mpadsp_init_ppc
void ff_mpadsp_init_ppc(MPADSPContext *s)
Definition: mpegaudiodsp_altivec.c:133
MPADSPContext::apply_window_fixed
void(* apply_window_fixed)(int32_t *synth_buf, int32_t *window, int *dither_state, int16_t *samples, ptrdiff_t incr)
Definition: mpegaudiodsp.h:31
MPADSPContext::apply_window_float
void(* apply_window_float)(float *synth_buf, float *window, int *dither_state, float *samples, ptrdiff_t incr)
Definition: mpegaudiodsp.h:28
ff_mdct_win_float
float ff_mdct_win_float[8][MDCT_BUF_SIZE]
ff_mpa_synth_init_float
void ff_mpa_synth_init_float(float *window)
MPADSPContext::imdct36_blocks_fixed
void(* imdct36_blocks_fixed)(int *out, int *buf, int *in, int count, int switch_point, int block_type)
Definition: mpegaudiodsp.h:39