Libav
Data Structures | Functions | Variables
af_ashowinfo.c File Reference

filter for showing textual audio frame information More...

#include <inttypes.h>
#include <stddef.h>
#include "libavutil/adler32.h"
#include "libavutil/attributes.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/downmix_info.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavutil/replaygain.h"
#include "libavutil/samplefmt.h"
#include "audio.h"
#include "avfilter.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  AShowInfoContext
 

Functions

static int config_input (AVFilterLink *inlink)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static void dump_matrixenc (AVFilterContext *ctx, AVFrameSideData *sd)
 
static void dump_downmix (AVFilterContext *ctx, AVFrameSideData *sd)
 
static void print_gain (AVFilterContext *ctx, const char *str, int32_t gain)
 
static void print_peak (AVFilterContext *ctx, const char *str, uint32_t peak)
 
static void dump_replaygain (AVFilterContext *ctx, AVFrameSideData *sd)
 
static void dump_unknown (AVFilterContext *ctx, AVFrameSideData *sd)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *buf)
 

Variables

static const AVFilterPad inputs []
 
static const AVFilterPad outputs []
 
AVFilter ff_af_ashowinfo
 

Detailed Description

filter for showing textual audio frame information

Definition in file af_ashowinfo.c.

Function Documentation

static int config_input ( AVFilterLink inlink)
static

Definition at line 55 of file af_ashowinfo.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 66 of file af_ashowinfo.c.

static void dump_matrixenc ( AVFilterContext ctx,
AVFrameSideData sd 
)
static

Definition at line 72 of file af_ashowinfo.c.

Referenced by filter_frame().

static void dump_downmix ( AVFilterContext ctx,
AVFrameSideData sd 
)
static

Definition at line 96 of file af_ashowinfo.c.

Referenced by filter_frame().

static void print_gain ( AVFilterContext ctx,
const char *  str,
int32_t  gain 
)
static

Definition at line 123 of file af_ashowinfo.c.

Referenced by dump_replaygain().

static void print_peak ( AVFilterContext ctx,
const char *  str,
uint32_t  peak 
)
static

Definition at line 133 of file af_ashowinfo.c.

Referenced by dump_replaygain().

static void dump_replaygain ( AVFilterContext ctx,
AVFrameSideData sd 
)
static

Definition at line 143 of file af_ashowinfo.c.

Referenced by filter_frame().

static void dump_unknown ( AVFilterContext ctx,
AVFrameSideData sd 
)
static

Definition at line 160 of file af_ashowinfo.c.

Referenced by filter_frame().

static int filter_frame ( AVFilterLink inlink,
AVFrame buf 
)
static

Definition at line 165 of file af_ashowinfo.c.

Variable Documentation

const AVFilterPad inputs[]
static
Initial value:
= {
{
.name = "default",
.get_audio_buffer = ff_null_get_audio_buffer,
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL },
}
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
Definition: af_ashowinfo.c:165
static int config_input(AVFilterLink *inlink)
Definition: af_ashowinfo.c:55
AVFrame * ff_null_get_audio_buffer(AVFilterLink *link, int nb_samples)
get_audio_buffer() handler for filters which simply pass audio along
Definition: audio.c:26
NULL
Definition: eval.c:55

Definition at line 221 of file af_ashowinfo.c.

Referenced by avfilter_graph_parse(), configure_filtergraph(), and join_config_output().

const AVFilterPad outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL },
}
NULL
Definition: eval.c:55

Definition at line 232 of file af_ashowinfo.c.

Referenced by avfilter_graph_parse(), and configure_filtergraph().

AVFilter ff_af_ashowinfo
Initial value:
= {
.name = "ashowinfo",
.description = NULL_IF_CONFIG_SMALL("Show textual information for each audio frame."),
.priv_size = sizeof(AShowInfoContext),
}
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:232
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:150
static av_cold void uninit(AVFilterContext *ctx)
Definition: af_ashowinfo.c:66
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:221

Definition at line 240 of file af_ashowinfo.c.