FFmpeg  4.3
Data Structures | Macros | Enumerations | Functions | Variables
avf_ahistogram.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "audio.h"
#include "video.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  AudioHistogramContext
 

Macros

#define OFFSET(x)   offsetof(AudioHistogramContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 

Enumerations

enum  DisplayScale {
  LINEAR, SQRT, CBRT, LOG,
  RLOG, NB_SCALES, LINEAR, SQRT,
  CBRT, LOG, FOURTHRT, FIFTHRT,
  NB_SCALES, LINEAR, LOG, NB_DISPLAY_SCALE
}
 
enum  AmplitudeScale {
  ALINEAR, ALOG, NB_ASCALES, AS_LINEAR,
  AS_SQRT, AS_CBRT, AS_LOG, NB_ASCALES
}
 
enum  SlideMode {
  REPLACE, SCROLL, NB_SLIDES, REPLACE,
  SCROLL, FULLFRAME, RSCROLL, NB_SLIDES,
  REPLACE, SCROLL, FULLFRAME, RSCROLL,
  NB_SLIDES
}
 
enum  DisplayMode {
  SINGLE, SEPARATE, NB_DMODES, LINE,
  BAR, DOT, NB_MODES, COMBINED,
  SEPARATE, NB_MODES
}
 
enum  HistogramMode { ACCUMULATE, CURRENT, NB_HMODES }
 

Functions

 AVFILTER_DEFINE_CLASS (ahistogram)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_input (AVFilterLink *inlink)
 
static int config_output (AVFilterLink *outlink)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static int activate (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption ahistogram_options []
 
static const AVFilterPad ahistogram_inputs []
 
static const AVFilterPad ahistogram_outputs []
 
AVFilter ff_avf_ahistogram
 

Macro Definition Documentation

◆ OFFSET

#define OFFSET (   x)    offsetof(AudioHistogramContext, x)

Definition at line 61 of file avf_ahistogram.c.

◆ FLAGS

Definition at line 62 of file avf_ahistogram.c.

Enumeration Type Documentation

◆ DisplayScale

Enumerator
LINEAR 
SQRT 
CBRT 
LOG 
RLOG 
NB_SCALES 
LINEAR 
SQRT 
CBRT 
LOG 
FOURTHRT 
FIFTHRT 
NB_SCALES 
LINEAR 
LOG 
NB_DISPLAY_SCALE 

Definition at line 31 of file avf_ahistogram.c.

◆ AmplitudeScale

Enumerator
ALINEAR 
ALOG 
NB_ASCALES 
AS_LINEAR 
AS_SQRT 
AS_CBRT 
AS_LOG 
NB_ASCALES 

Definition at line 32 of file avf_ahistogram.c.

◆ SlideMode

enum SlideMode
Enumerator
REPLACE 
SCROLL 
NB_SLIDES 
REPLACE 
SCROLL 
FULLFRAME 
RSCROLL 
NB_SLIDES 
REPLACE 
SCROLL 
FULLFRAME 
RSCROLL 
NB_SLIDES 

Definition at line 33 of file avf_ahistogram.c.

◆ DisplayMode

Enumerator
SINGLE 
SEPARATE 
NB_DMODES 
LINE 
BAR 
DOT 
NB_MODES 
COMBINED 
SEPARATE 
NB_MODES 

Definition at line 34 of file avf_ahistogram.c.

◆ HistogramMode

Enumerator
ACCUMULATE 
CURRENT 
NB_HMODES 

Definition at line 35 of file avf_ahistogram.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( ahistogram  )

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 91 of file avf_ahistogram.c.

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 118 of file avf_ahistogram.c.

◆ config_output()

static int config_output ( AVFilterLink outlink)
static

Definition at line 136 of file avf_ahistogram.c.

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 157 of file avf_ahistogram.c.

Referenced by activate().

◆ activate()

static int activate ( AVFilterContext ctx)
static

Definition at line 374 of file avf_ahistogram.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 396 of file avf_ahistogram.c.

Variable Documentation

◆ ahistogram_options

const AVOption ahistogram_options[]
static
Initial value:
= {
{ "dmode", "set method to display channels", OFFSET(dmode), AV_OPT_TYPE_INT, {.i64=SINGLE}, 0, NB_DMODES-1, FLAGS, "dmode" },
{ "single", "all channels use single histogram", 0, AV_OPT_TYPE_CONST, {.i64=SINGLE}, 0, 0, FLAGS, "dmode" },
{ "separate", "each channel have own histogram", 0, AV_OPT_TYPE_CONST, {.i64=SEPARATE}, 0, 0, FLAGS, "dmode" },
{ "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
{ "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
{ "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
{ "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
{ "scale", "set display scale", OFFSET(scale), AV_OPT_TYPE_INT, {.i64=LOG}, LINEAR, NB_SCALES-1, FLAGS, "scale" },
{ "log", "logarithmic", 0, AV_OPT_TYPE_CONST, {.i64=LOG}, 0, 0, FLAGS, "scale" },
{ "sqrt", "square root", 0, AV_OPT_TYPE_CONST, {.i64=SQRT}, 0, 0, FLAGS, "scale" },
{ "cbrt", "cubic root", 0, AV_OPT_TYPE_CONST, {.i64=CBRT}, 0, 0, FLAGS, "scale" },
{ "lin", "linear", 0, AV_OPT_TYPE_CONST, {.i64=LINEAR}, 0, 0, FLAGS, "scale" },
{ "rlog", "reverse logarithmic", 0, AV_OPT_TYPE_CONST, {.i64=RLOG}, 0, 0, FLAGS, "scale" },
{ "ascale", "set amplitude scale", OFFSET(ascale), AV_OPT_TYPE_INT, {.i64=ALOG}, LINEAR, NB_ASCALES-1, FLAGS, "ascale" },
{ "log", "logarithmic", 0, AV_OPT_TYPE_CONST, {.i64=ALOG}, 0, 0, FLAGS, "ascale" },
{ "lin", "linear", 0, AV_OPT_TYPE_CONST, {.i64=ALINEAR}, 0, 0, FLAGS, "ascale" },
{ "acount", "how much frames to accumulate", OFFSET(count), AV_OPT_TYPE_INT, {.i64=1}, -1, 100, FLAGS },
{ "rheight", "set histogram ratio of window height", OFFSET(phisto), AV_OPT_TYPE_FLOAT, {.dbl=0.10}, 0, 1, FLAGS },
{ "slide", "set sonogram sliding", OFFSET(slide), AV_OPT_TYPE_INT, {.i64=REPLACE}, 0, NB_SLIDES-1, FLAGS, "slide" },
{ "replace", "replace old rows with new", 0, AV_OPT_TYPE_CONST, {.i64=REPLACE}, 0, 0, FLAGS, "slide" },
{ "scroll", "scroll from top to bottom", 0, AV_OPT_TYPE_CONST, {.i64=SCROLL}, 0, 0, FLAGS, "slide" },
{ NULL }
}

Definition at line 64 of file avf_ahistogram.c.

◆ ahistogram_inputs

const AVFilterPad ahistogram_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
},
{ NULL }
}

Definition at line 409 of file avf_ahistogram.c.

◆ ahistogram_outputs

const AVFilterPad ahistogram_outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_output,
},
{ NULL }
}

Definition at line 418 of file avf_ahistogram.c.

◆ ff_avf_ahistogram

AVFilter ff_avf_ahistogram
Initial value:
= {
.name = "ahistogram",
.description = NULL_IF_CONFIG_SMALL("Convert input audio to histogram video output."),
.uninit = uninit,
.query_formats = query_formats,
.priv_size = sizeof(AudioHistogramContext),
.priv_class = &ahistogram_class,
}

Definition at line 427 of file avf_ahistogram.c.

NB_SLIDES
@ NB_SLIDES
Definition: avf_ahistogram.c:33
LOG
@ LOG
Definition: avf_ahistogram.c:31
AV_OPT_TYPE_VIDEO_RATE
@ AV_OPT_TYPE_VIDEO_RATE
offset must point to AVRational
Definition: opt.h:236
config_output
static int config_output(AVFilterLink *outlink)
Definition: avf_ahistogram.c:136
REPLACE
@ REPLACE
Definition: avf_ahistogram.c:33
SCROLL
@ SCROLL
Definition: avf_ahistogram.c:33
FLAGS
#define FLAGS
Definition: avf_ahistogram.c:62
ALINEAR
@ ALINEAR
Definition: avf_ahistogram.c:32
NB_DMODES
@ NB_DMODES
Definition: avf_ahistogram.c:34
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: avf_ahistogram.c:396
NB_SCALES
@ NB_SCALES
Definition: avf_ahistogram.c:31
ahistogram_outputs
static const AVFilterPad ahistogram_outputs[]
Definition: avf_ahistogram.c:418
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
SQRT
@ SQRT
Definition: avf_ahistogram.c:31
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
config_input
static int config_input(AVFilterLink *inlink)
Definition: avf_ahistogram.c:118
OFFSET
#define OFFSET(x)
Definition: avf_ahistogram.c:61
ALOG
@ ALOG
Definition: avf_ahistogram.c:32
NULL
#define NULL
Definition: coverity.c:32
AV_OPT_TYPE_IMAGE_SIZE
@ AV_OPT_TYPE_IMAGE_SIZE
offset must point to two consecutive integers
Definition: opt.h:233
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
AudioHistogramContext
Definition: avf_ahistogram.c:37
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:186
SINGLE
@ SINGLE
Definition: avf_ahistogram.c:34
RLOG
@ RLOG
Definition: avf_ahistogram.c:31
CBRT
@ CBRT
Definition: avf_ahistogram.c:31
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:226
LINEAR
@ LINEAR
Definition: avf_ahistogram.c:31
w
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 please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo ug o o w
Definition: fate.txt:150
NB_ASCALES
@ NB_ASCALES
Definition: avf_ahistogram.c:32
ahistogram_inputs
static const AVFilterPad ahistogram_inputs[]
Definition: avf_ahistogram.c:409
SEPARATE
@ SEPARATE
Definition: avf_ahistogram.c:34
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:223
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: avf_ahistogram.c:91
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
activate
static int activate(AVFilterContext *ctx)
Definition: avf_ahistogram.c:374
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:232