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Data Structures | Macros | Functions | Variables
af_asdr.c File Reference
#include <float.h>
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/mem.h"
#include "avfilter.h"
#include "filters.h"

Go to the source code of this file.

Data Structures

struct  ChanStats
 
struct  AudioSDRContext
 

Macros

#define SDR_FILTER(name, type)
 
#define SISDR_FILTER(name, type)
 
#define PSNR_FILTER(name, type)
 

Functions

static int activate (AVFilterContext *ctx)
 
static int config_output (AVFilterLink *outlink)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVFilterPad inputs []
 
static const AVFilterPad outputs []
 
const FFFilter ff_af_asdr
 
const FFFilter ff_af_apsnr
 
const FFFilter ff_af_asisdr
 

Macro Definition Documentation

◆ SDR_FILTER

#define SDR_FILTER ( name,
type )
Value:
static int sdr_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)\
{ \
AudioSDRContext *s = ctx->priv; \
AVFrame *u = s->cache[0]; \
AVFrame *v = s->cache[1]; \
const int channels = u->ch_layout.nb_channels; \
const int start = ff_slice_pos(channels, jobnr, nb_jobs); \
const int end = ff_slice_pos(channels, jobnr + 1, nb_jobs); \
const int nb_samples = u->nb_samples; \
\
for (int ch = start; ch < end; ch++) { \
ChanStats *chs = &s->chs[ch]; \
const type *const us = (type *)u->extended_data[ch]; \
const type *const vs = (type *)v->extended_data[ch]; \
double sum_uv = 0.; \
double sum_u = 0.; \
\
for (int n = 0; n < nb_samples; n++) { \
sum_u += us[n] * us[n]; \
sum_uv += (us[n] - vs[n]) * (us[n] - vs[n]); \
} \
\
chs->uv += sum_uv; \
chs->u += sum_u; \
} \
\
return 0; \
}
channels
channels
Definition aptx.h:31
s
#define s(width, name)
Definition cbs_vp9.c:198
type
cl_device_type type
Definition hwcontext_opencl.c:213
u
#define u(width, name, range_min, range_max)
Definition cbs_apv.c:68
us
#define us(width, name, range_min, range_max, subs,...)
Definition cbs_apv.c:70
arg
const char * arg
Definition jacosubdec.c:65
ff_slice_pos
static int ff_slice_pos(int total, int jobnr, int nb_jobs)
Compute the boundary index for a slice when work of size total is split into nb_jobs slices.
Definition filters.h:763
name
const char * name
Definition qsvenc.c:142
AVFilterContext
An instance of a filter.
Definition avfilter.h:273
AVFrame
This structure describes decoded (raw) audio or video data.
Definition frame.h:472
AVFrame::extended_data
uint8_t ** extended_data
pointers to the data planes/channels.
Definition frame.h:533
ctx
static AVFormatContext * ctx
Definition movenc.c:49

Definition at line 48 of file af_asdr.c.

◆ SISDR_FILTER

#define SISDR_FILTER ( name,
type )

Definition at line 81 of file af_asdr.c.

◆ PSNR_FILTER

#define PSNR_FILTER ( name,
type )
Value:
static int psnr_##name(AVFilterContext *ctx, void *arg, int jobnr,int nb_jobs)\
{ \
AudioSDRContext *s = ctx->priv; \
AVFrame *u = s->cache[0]; \
AVFrame *v = s->cache[1]; \
const int channels = u->ch_layout.nb_channels; \
const int start = ff_slice_pos(channels, jobnr, nb_jobs); \
const int end = ff_slice_pos(channels, jobnr + 1, nb_jobs); \
const int nb_samples = u->nb_samples; \
\
for (int ch = start; ch < end; ch++) { \
ChanStats *chs = &s->chs[ch]; \
const type *const us = (type *)u->extended_data[ch]; \
const type *const vs = (type *)v->extended_data[ch]; \
double sum_uv = 0.; \
\
for (int n = 0; n < nb_samples; n++) \
sum_uv += (us[n] - vs[n]) * (us[n] - vs[n]); \
\
chs->uv += sum_uv; \
} \
\
return 0; \
}

Definition at line 117 of file af_asdr.c.

Function Documentation

◆ activate()

static int activate ( AVFilterContext * ctx)
static

Definition at line 146 of file af_asdr.c.

◆ config_output()

static int config_output ( AVFilterLink * outlink)
static

Definition at line 199 of file af_asdr.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext * ctx)
static

Definition at line 222 of file af_asdr.c.

Variable Documentation

◆ inputs

const AVFilterPad inputs[]
static
Initial value:
= {
{
.name = "input0",
.type = AVMEDIA_TYPE_AUDIO,
},
{
.name = "input1",
.type = AVMEDIA_TYPE_AUDIO,
},
}
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition avutil.h:201

Definition at line 250 of file af_asdr.c.

◆ outputs

const AVFilterPad outputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = config_output,
},
}
config_output
static int config_output(AVBitStreamFilterLink *outlink)
Definition lcevc_merge.c:111

Definition at line 261 of file af_asdr.c.

◆ ff_af_asdr

const FFFilter ff_af_asdr
Initial value:
= {
.p.name = "asdr",
.p.description = NULL_IF_CONFIG_SMALL("Measure Audio Signal-to-Distortion Ratio."),
.p.flags = AVFILTER_FLAG_METADATA_ONLY |
AVFILTER_FLAG_SLICE_THREADS |
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
.priv_size = sizeof(AudioSDRContext),
.activate = activate,
.uninit = uninit,
FILTER_INPUTS(inputs),
FILTER_OUTPUTS(outputs),
FILTER_SAMPLEFMTS(AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_DBLP),
}
inputs
static const AVFilterPad inputs[]
Definition af_aap.c:299
outputs
static const AVFilterPad outputs[]
Definition af_aap.c:310
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition avfilter.h:166
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition avfilter.h:204
AVFILTER_FLAG_METADATA_ONLY
#define AVFILTER_FLAG_METADATA_ONLY
The filter is a "metadata" filter - it does not modify the frame data in any way.
Definition avfilter.h:182
AV_SAMPLE_FMT_FLTP
@ AV_SAMPLE_FMT_FLTP
float, planar
Definition samplefmt.h:66
AV_SAMPLE_FMT_DBLP
@ AV_SAMPLE_FMT_DBLP
double, planar
Definition samplefmt.h:67
uninit
static av_cold void uninit(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:135
activate
static int activate(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:144
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition filters.h:264
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition filters.h:265
FILTER_SAMPLEFMTS
#define FILTER_SAMPLEFMTS(...)
Definition filters.h:252
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition internal.h:88

Definition at line 269 of file af_asdr.c.

◆ ff_af_apsnr

const FFFilter ff_af_apsnr
Initial value:
= {
.p.name = "apsnr",
.p.description = NULL_IF_CONFIG_SMALL("Measure Audio Peak Signal-to-Noise Ratio."),
.p.flags = AVFILTER_FLAG_METADATA_ONLY |
AVFILTER_FLAG_SLICE_THREADS |
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
.priv_size = sizeof(AudioSDRContext),
.activate = activate,
.uninit = uninit,
FILTER_INPUTS(inputs),
FILTER_OUTPUTS(outputs),
FILTER_SAMPLEFMTS(AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_DBLP),
}

Definition at line 284 of file af_asdr.c.

◆ ff_af_asisdr

const FFFilter ff_af_asisdr
Initial value:
= {
.p.name = "asisdr",
.p.description = NULL_IF_CONFIG_SMALL("Measure Audio Scale-Invariant Signal-to-Distortion Ratio."),
.p.flags = AVFILTER_FLAG_METADATA_ONLY |
AVFILTER_FLAG_SLICE_THREADS |
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
.priv_size = sizeof(AudioSDRContext),
.activate = activate,
.uninit = uninit,
FILTER_INPUTS(inputs),
FILTER_OUTPUTS(outputs),
FILTER_SAMPLEFMTS(AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_DBLP),
}

Definition at line 299 of file af_asdr.c.

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