FFmpeg
Data Structures | Macros | Functions | Variables
opt.c File Reference
#include <limits.h>
#include <stdio.h>
#include "libavutil/common.h"
#include "libavutil/channel_layout.h"
#include "libavutil/error.h"
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/rational.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"

Go to the source code of this file.

Data Structures

struct  TestContext
 

Macros

#define OFFSET(x)   offsetof(TestContext, x)
 
#define TEST_FLAG_COOL   01
 
#define TEST_FLAG_LAME   02
 
#define TEST_FLAG_MU   04
 

Functions

static const char * test_get_name (void *ctx)
 
static void log_callback_help (void *ptr, int level, const char *fmt, va_list vl)
 
int main (void)
 

Variables

static const AVOption test_options []
 
static const AVClass test_class
 

Macro Definition Documentation

◆ OFFSET

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

Definition at line 62 of file opt.c.

◆ TEST_FLAG_COOL

#define TEST_FLAG_COOL   01

Definition at line 64 of file opt.c.

◆ TEST_FLAG_LAME

#define TEST_FLAG_LAME   02

Definition at line 65 of file opt.c.

◆ TEST_FLAG_MU

#define TEST_FLAG_MU   04

Definition at line 66 of file opt.c.

Function Documentation

◆ test_get_name()

static const char* test_get_name ( void *  ctx)
static

Definition at line 99 of file opt.c.

◆ log_callback_help()

static void log_callback_help ( void *  ptr,
int  level,
const char *  fmt,
va_list  vl 
)
static

Definition at line 111 of file opt.c.

Referenced by main().

◆ main()

int main ( void  )

Definition at line 116 of file opt.c.

Variable Documentation

◆ test_options

const AVOption test_options[]
static
Initial value:
= {
{"num", "set num", OFFSET(num), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 100, 1 },
{"toggle", "set toggle", OFFSET(toggle), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, 1 },
{"rational", "set rational", OFFSET(rational), AV_OPT_TYPE_RATIONAL, { .dbl = 1 }, 0, 10, 1 },
{"string", "set string", OFFSET(string), AV_OPT_TYPE_STRING, { .str = "default" }, CHAR_MIN, CHAR_MAX, 1 },
{"escape", "set escape str", OFFSET(escape), AV_OPT_TYPE_STRING, { .str = "\\=," }, CHAR_MIN, CHAR_MAX, 1 },
{"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, { .i64 = 1 }, 0, INT_MAX, 1, "flags" },
{"cool", "set cool flag", 0, AV_OPT_TYPE_CONST, { .i64 = TEST_FLAG_COOL }, INT_MIN, INT_MAX, 1, "flags" },
{"lame", "set lame flag", 0, AV_OPT_TYPE_CONST, { .i64 = TEST_FLAG_LAME }, INT_MIN, INT_MAX, 1, "flags" },
{"mu", "set mu flag", 0, AV_OPT_TYPE_CONST, { .i64 = TEST_FLAG_MU }, INT_MIN, INT_MAX, 1, "flags" },
{"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, { .str="200x300" }, 0, 0, 1 },
{"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, { .i64 = AV_PIX_FMT_0BGR }, -1, INT_MAX, 1 },
{"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, { .i64 = AV_SAMPLE_FMT_S16 }, -1, INT_MAX, 1 },
{"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 0, INT_MAX, 1 },
{"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, { .i64 = 1000 }, 0, INT64_MAX, 1 },
{"color", "set color", OFFSET(color), AV_OPT_TYPE_COLOR, { .str = "pink" }, 0, 0, 1 },
{"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHLAYOUT, { .str = "hexagonal" }, 0, 0, 1 },
{"bin", "set binary value", OFFSET(binary), AV_OPT_TYPE_BINARY, { .str="62696e00" }, 0, 0, 1 },
{"bin1", "set binary value", OFFSET(binary1), AV_OPT_TYPE_BINARY, { .str=NULL }, 0, 0, 1 },
{"bin2", "set binary value", OFFSET(binary2), AV_OPT_TYPE_BINARY, { .str="" }, 0, 0, 1 },
{"num64", "set num 64bit", OFFSET(num64), AV_OPT_TYPE_INT64, { .i64 = 1 }, 0, 100, 1 },
{"flt", "set float", OFFSET(flt), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 / 3 }, 0, 100, 1 },
{"dbl", "set double", OFFSET(dbl), AV_OPT_TYPE_DOUBLE, { .dbl = 1.0 / 3 }, 0, 100, 1 },
{"bool1", "set boolean value", OFFSET(bool1), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, 1 },
{"bool2", "set boolean value", OFFSET(bool2), AV_OPT_TYPE_BOOL, { .i64 = 1 }, -1, 1, 1 },
{"bool3", "set boolean value", OFFSET(bool3), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, 1 },
{"dict1", "set dictionary value", OFFSET(dict1), AV_OPT_TYPE_DICT, { .str = NULL}, 0, 0, 1 },
{"dict2", "set dictionary value", OFFSET(dict2), AV_OPT_TYPE_DICT, { .str = "happy=':-)'"}, 0, 0, 1 },
{ NULL },
}

Definition at line 68 of file opt.c.

◆ test_class

const AVClass test_class
static
Initial value:
= {
.class_name = "TestContext",
.item_name = test_get_name,
.option = test_options,
}

Definition at line 104 of file opt.c.

Referenced by main().

AV_OPT_TYPE_SAMPLE_FMT
@ AV_OPT_TYPE_SAMPLE_FMT
Definition: opt.h:237
color
Definition: vf_paletteuse.c:511
AV_OPT_TYPE_VIDEO_RATE
@ AV_OPT_TYPE_VIDEO_RATE
offset must point to AVRational
Definition: opt.h:238
w
uint8_t w
Definition: llviddspenc.c:38
test_get_name
static const char * test_get_name(void *ctx)
Definition: opt.c:99
AV_OPT_TYPE_DURATION
@ AV_OPT_TYPE_DURATION
Definition: opt.h:239
TEST_FLAG_LAME
#define TEST_FLAG_LAME
Definition: opt.c:65
AV_OPT_TYPE_RATIONAL
@ AV_OPT_TYPE_RATIONAL
Definition: opt.h:230
AV_OPT_TYPE_BINARY
@ AV_OPT_TYPE_BINARY
offset must point to a pointer immediately followed by an int for the length
Definition: opt.h:231
duration
int64_t duration
Definition: movenc.c:64
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demux_decode.c:41
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:227
AV_OPT_TYPE_INT64
@ AV_OPT_TYPE_INT64
Definition: opt.h:226
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
NULL
#define NULL
Definition: coverity.c:32
TEST_FLAG_COOL
#define TEST_FLAG_COOL
Definition: opt.c:64
AV_OPT_TYPE_COLOR
@ AV_OPT_TYPE_COLOR
Definition: opt.h:240
AV_OPT_TYPE_IMAGE_SIZE
@ AV_OPT_TYPE_IMAGE_SIZE
offset must point to two consecutive integers
Definition: opt.h:235
AV_OPT_TYPE_DICT
@ AV_OPT_TYPE_DICT
Definition: opt.h:232
AV_OPT_TYPE_CHLAYOUT
@ AV_OPT_TYPE_CHLAYOUT
Definition: opt.h:245
OFFSET
#define OFFSET(x)
Definition: opt.c:62
TEST_FLAG_MU
#define TEST_FLAG_MU
Definition: opt.c:66
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
AV_SAMPLE_FMT_S16
@ AV_SAMPLE_FMT_S16
signed 16 bits
Definition: samplefmt.h:58
AV_PIX_FMT_0BGR
@ AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition: pixfmt.h:257
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AV_OPT_TYPE_PIXEL_FMT
@ AV_OPT_TYPE_PIXEL_FMT
Definition: opt.h:236
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
AV_OPT_TYPE_FLAGS
@ AV_OPT_TYPE_FLAGS
Definition: opt.h:224
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:474
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
test_options
static const AVOption test_options[]
Definition: opt.c:68