opengl_enc.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include "config.h"
#include <GL/gl.h>
#include <GL/glext.h>
#include "libavutil/common.h"
#include "libavutil/pixdesc.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/avassert.h"
#include "libavformat/avformat.h"
#include "libavformat/internal.h"
#include "libavformat/mux.h"
#include "libavdevice/avdevice.h"
#include "opengl_enc_shaders.h"

Go to the source code of this file.

Data Structures
struct	FFOpenGLFunctions
struct	OpenGLVertexInfo
struct	OpenGLContext
struct	OpenGLFormatDesc

Macros
#define	APIENTRY
#define	FF_GL_RED_COMPONENT   0x1903;
#define	FF_GL_UNSIGNED_BYTE_3_3_2   0x8032
#define	FF_GL_UNSIGNED_BYTE_2_3_3_REV   0x8362
#define	FF_GL_UNSIGNED_SHORT_1_5_5_5_REV   0x8366
#define	FF_GL_UNPACK_ROW_LENGTH   0x0CF2
#define	FF_GL_ARRAY_BUFFER   0x8892
#define	FF_GL_ELEMENT_ARRAY_BUFFER   0x8893
#define	FF_GL_STATIC_DRAW   0x88E4
#define	FF_GL_FRAGMENT_SHADER   0x8B30
#define	FF_GL_VERTEX_SHADER   0x8B31
#define	FF_GL_COMPILE_STATUS   0x8B81
#define	FF_GL_LINK_STATUS   0x8B82
#define	FF_GL_INFO_LOG_LENGTH   0x8B84
#define	OPENGL_ERROR_CHECK(ctx)
#define	LOAD_OPENGL_FUN(name, type)
#define	FILL_COMPONENT(i)
#define	LOAD_TEXTURE_DATA(comp_index, sub)
#define	OFFSET(x)   offsetof(OpenGLContext, x)
#define	ENC   AV_OPT_FLAG_ENCODING_PARAM

Typedefs
typedef void(APIENTRY *	FF_PFNGLACTIVETEXTUREPROC) (GLenum texture)
typedef void(APIENTRY *	FF_PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers)
typedef void(APIENTRY *	FF_PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers)
typedef void(APIENTRY *	FF_PFNGLBUFFERDATAPROC) (GLenum target, ptrdiff_t size, const GLvoid *data, GLenum usage)
typedef void(APIENTRY *	FF_PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer)
typedef GLint(APIENTRY *	FF_PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const char *name)
typedef void(APIENTRY *	FF_PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index)
typedef void(APIENTRY *	FF_PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, uintptr_t pointer)
typedef GLint(APIENTRY *	FF_PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const char *name)
typedef void(APIENTRY *	FF_PFNGLUNIFORM1FPROC) (GLint location, GLfloat v0)
typedef void(APIENTRY *	FF_PFNGLUNIFORM1IPROC) (GLint location, GLint v0)
typedef void(APIENTRY *	FF_PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
typedef GLuint(APIENTRY *	FF_PFNGLCREATEPROGRAMPROC) (void)
typedef void(APIENTRY *	FF_PFNGLDELETEPROGRAMPROC) (GLuint program)
typedef void(APIENTRY *	FF_PFNGLUSEPROGRAMPROC) (GLuint program)
typedef void(APIENTRY *	FF_PFNGLLINKPROGRAMPROC) (GLuint program)
typedef void(APIENTRY *	FF_PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params)
typedef void(APIENTRY *	FF_PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, char *infoLog)
typedef void(APIENTRY *	FF_PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader)
typedef GLuint(APIENTRY *	FF_PFNGLCREATESHADERPROC) (GLenum type)
typedef void(APIENTRY *	FF_PFNGLDELETESHADERPROC) (GLuint shader)
typedef void(APIENTRY *	FF_PFNGLCOMPILESHADERPROC) (GLuint shader)
typedef void(APIENTRY *	FF_PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const char **string, const GLint *length)
typedef void(APIENTRY *	FF_PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params)
typedef void(APIENTRY *	FF_PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, char *infoLog)

Functions
static av_cold int	opengl_prepare_vertex (AVFormatContext *s)
static int	opengl_draw (AVFormatContext *h, void *intput, int repaint, int is_pkt)
static av_cold int	opengl_init_context (OpenGLContext *opengl)
static av_cold void	opengl_deinit_context (OpenGLContext *opengl)
static int	opengl_resize (AVFormatContext *h, int width, int height)
static int	opengl_control_message (AVFormatContext *h, int type, void *data, size_t data_size)
static int av_cold	opengl_load_procedures (OpenGLContext *opengl)
static void	opengl_make_identity (float matrix[16])
static void	opengl_make_ortho (float matrix[16], float left, float right, float bottom, float top, float nearZ, float farZ)
static av_cold int	opengl_read_limits (AVFormatContext *h)
static const char *	opengl_get_fragment_shader_code (enum AVPixelFormat format)
static int	opengl_type_size (GLenum type)
static av_cold void	opengl_get_texture_params (OpenGLContext *opengl)
static void	opengl_compute_display_area (AVFormatContext *s)
static av_cold void	opengl_get_texture_size (OpenGLContext *opengl, int in_width, int in_height, int *out_width, int *out_height)
static av_cold void	opengl_fill_color_map (OpenGLContext *opengl)
static av_cold GLuint	opengl_load_shader (OpenGLContext *opengl, GLenum type, const char *source)
static av_cold int	opengl_compile_shaders (OpenGLContext *opengl, enum AVPixelFormat pix_fmt)
static av_cold int	opengl_configure_texture (OpenGLContext *opengl, GLuint texture, GLsizei width, GLsizei height)
static int	opengl_prepare (OpenGLContext *opengl)
static int	opengl_create_window (AVFormatContext *h)
static int	opengl_release_window (AVFormatContext *h)
static av_cold int	opengl_write_trailer (AVFormatContext *h)
static av_cold int	opengl_write_header (AVFormatContext *h)
static uint8_t *	opengl_get_plane_pointer (OpenGLContext *opengl, AVPacket *pkt, int comp_index, const AVPixFmtDescriptor *desc)
static int	opengl_write_packet (AVFormatContext *h, AVPacket *pkt)
static int	opengl_write_frame (AVFormatContext *h, int stream_index, AVFrame **frame, unsigned flags)

Variables
static const GLushort	g_index [6]
static const struct OpenGLFormatDesc	opengl_format_desc []
static const AVOption	options []
static const AVClass	opengl_class
const FFOutputFormat	ff_opengl_muxer

Macro Definition Documentation

APIENTRY

#define APIENTRY

Definition at line 64 of file opengl_enc.c.

FF_GL_RED_COMPONENT

#define FF_GL_RED_COMPONENT   0x1903;

Definition at line 79 of file opengl_enc.c.

FF_GL_UNSIGNED_BYTE_3_3_2

#define FF_GL_UNSIGNED_BYTE_3_3_2   0x8032

Definition at line 83 of file opengl_enc.c.

FF_GL_UNSIGNED_BYTE_2_3_3_REV

#define FF_GL_UNSIGNED_BYTE_2_3_3_REV   0x8362

Definition at line 84 of file opengl_enc.c.

FF_GL_UNSIGNED_SHORT_1_5_5_5_REV

#define FF_GL_UNSIGNED_SHORT_1_5_5_5_REV   0x8366

Definition at line 85 of file opengl_enc.c.

FF_GL_UNPACK_ROW_LENGTH

#define FF_GL_UNPACK_ROW_LENGTH   0x0CF2

Definition at line 86 of file opengl_enc.c.

FF_GL_ARRAY_BUFFER

#define FF_GL_ARRAY_BUFFER   0x8892

Definition at line 89 of file opengl_enc.c.

FF_GL_ELEMENT_ARRAY_BUFFER

#define FF_GL_ELEMENT_ARRAY_BUFFER   0x8893

Definition at line 90 of file opengl_enc.c.

FF_GL_STATIC_DRAW

#define FF_GL_STATIC_DRAW   0x88E4

Definition at line 91 of file opengl_enc.c.

FF_GL_FRAGMENT_SHADER

#define FF_GL_FRAGMENT_SHADER   0x8B30

Definition at line 92 of file opengl_enc.c.

FF_GL_VERTEX_SHADER

#define FF_GL_VERTEX_SHADER   0x8B31

Definition at line 93 of file opengl_enc.c.

FF_GL_COMPILE_STATUS

#define FF_GL_COMPILE_STATUS   0x8B81

Definition at line 94 of file opengl_enc.c.

FF_GL_LINK_STATUS

#define FF_GL_LINK_STATUS   0x8B82

Definition at line 95 of file opengl_enc.c.

FF_GL_INFO_LOG_LENGTH

#define FF_GL_INFO_LOG_LENGTH   0x8B84

Definition at line 96 of file opengl_enc.c.

OPENGL_ERROR_CHECK

#define OPENGL_ERROR_CHECK

(

ctx

)

Value:

{\
    GLenum err_code; \
    if ((err_code = glGetError()) != GL_NO_ERROR) { \
        av_log(ctx, AV_LOG_ERROR, "OpenGL error occurred in '%s', line %d: %d\n", __FUNCTION__, __LINE__, err_code); \
        goto fail; \
    } \
}\

Definition at line 151 of file opengl_enc.c.

LOAD_OPENGL_FUN

#define LOAD_OPENGL_FUN	(		name,
			type
	)

Value:

    procs->name = (type)SelectedGetProcAddress(#name); \
    if (!procs->name) { \
        av_log(opengl, AV_LOG_ERROR, "Cannot load OpenGL function: '%s'\n", #name); \
        return AVERROR(ENOSYS); \
    }

FILL_COMPONENT

#define FILL_COMPONENT

(

i

)

Value:

        { \
        shift = (desc->comp[i].depth - 1) >> 3; \
        opengl->color_map[(i << 2) + (desc->comp[i].offset >> shift)] = 1.0; \
    }

LOAD_TEXTURE_DATA

#define LOAD_TEXTURE_DATA	(		comp_index,
			sub
	)

Definition at line 1157 of file opengl_enc.c.

OFFSET

#define OFFSET

(

x

)

offsetof(OpenGLContext, x)

Definition at line 1277 of file opengl_enc.c.

ENC

#define ENC   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 1278 of file opengl_enc.c.

Typedef Documentation

FF_PFNGLACTIVETEXTUREPROC

typedef void(APIENTRY * FF_PFNGLACTIVETEXTUREPROC) (GLenum texture)

Definition at line 97 of file opengl_enc.c.

FF_PFNGLGENBUFFERSPROC

typedef void(APIENTRY * FF_PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers)

Definition at line 98 of file opengl_enc.c.

FF_PFNGLDELETEBUFFERSPROC

typedef void(APIENTRY * FF_PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers)

Definition at line 99 of file opengl_enc.c.

FF_PFNGLBUFFERDATAPROC

typedef void(APIENTRY * FF_PFNGLBUFFERDATAPROC) (GLenum target, ptrdiff_t size, const GLvoid *data, GLenum usage)

Definition at line 100 of file opengl_enc.c.

FF_PFNGLBINDBUFFERPROC

typedef void(APIENTRY * FF_PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer)

Definition at line 101 of file opengl_enc.c.

FF_PFNGLGETATTRIBLOCATIONPROC

typedef GLint(APIENTRY * FF_PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const char *name)

Definition at line 102 of file opengl_enc.c.

FF_PFNGLENABLEVERTEXATTRIBARRAYPROC

typedef void(APIENTRY * FF_PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index)

Definition at line 103 of file opengl_enc.c.

FF_PFNGLVERTEXATTRIBPOINTERPROC

typedef void(APIENTRY * FF_PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, uintptr_t pointer)

Definition at line 104 of file opengl_enc.c.

FF_PFNGLGETUNIFORMLOCATIONPROC

typedef GLint(APIENTRY * FF_PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const char *name)

Definition at line 105 of file opengl_enc.c.

FF_PFNGLUNIFORM1FPROC

typedef void(APIENTRY * FF_PFNGLUNIFORM1FPROC) (GLint location, GLfloat v0)

Definition at line 106 of file opengl_enc.c.

FF_PFNGLUNIFORM1IPROC

typedef void(APIENTRY * FF_PFNGLUNIFORM1IPROC) (GLint location, GLint v0)

Definition at line 107 of file opengl_enc.c.

FF_PFNGLUNIFORMMATRIX4FVPROC

typedef void(APIENTRY * FF_PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)

Definition at line 108 of file opengl_enc.c.

FF_PFNGLCREATEPROGRAMPROC

typedef GLuint(APIENTRY * FF_PFNGLCREATEPROGRAMPROC) (void)

Definition at line 109 of file opengl_enc.c.

FF_PFNGLDELETEPROGRAMPROC

typedef void(APIENTRY * FF_PFNGLDELETEPROGRAMPROC) (GLuint program)

Definition at line 110 of file opengl_enc.c.

FF_PFNGLUSEPROGRAMPROC

typedef void(APIENTRY * FF_PFNGLUSEPROGRAMPROC) (GLuint program)

Definition at line 111 of file opengl_enc.c.

FF_PFNGLLINKPROGRAMPROC

typedef void(APIENTRY * FF_PFNGLLINKPROGRAMPROC) (GLuint program)

Definition at line 112 of file opengl_enc.c.

FF_PFNGLGETPROGRAMIVPROC

typedef void(APIENTRY * FF_PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params)

Definition at line 113 of file opengl_enc.c.

FF_PFNGLGETPROGRAMINFOLOGPROC

typedef void(APIENTRY * FF_PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, char *infoLog)

Definition at line 114 of file opengl_enc.c.

FF_PFNGLATTACHSHADERPROC

typedef void(APIENTRY * FF_PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader)

Definition at line 115 of file opengl_enc.c.

FF_PFNGLCREATESHADERPROC

typedef GLuint(APIENTRY * FF_PFNGLCREATESHADERPROC) (GLenum type)

Definition at line 116 of file opengl_enc.c.

FF_PFNGLDELETESHADERPROC

typedef void(APIENTRY * FF_PFNGLDELETESHADERPROC) (GLuint shader)

Definition at line 117 of file opengl_enc.c.

FF_PFNGLCOMPILESHADERPROC

typedef void(APIENTRY * FF_PFNGLCOMPILESHADERPROC) (GLuint shader)

Definition at line 118 of file opengl_enc.c.

FF_PFNGLSHADERSOURCEPROC

typedef void(APIENTRY * FF_PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const char **string, const GLint *length)

Definition at line 119 of file opengl_enc.c.

FF_PFNGLGETSHADERIVPROC

typedef void(APIENTRY * FF_PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params)

Definition at line 120 of file opengl_enc.c.

FF_PFNGLGETSHADERINFOLOGPROC

typedef void(APIENTRY * FF_PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, char *infoLog)

Definition at line 121 of file opengl_enc.c.

Function Documentation

opengl_prepare_vertex()

static av_cold int opengl_prepare_vertex ( AVFormatContext *  s )

static

Definition at line 862 of file opengl_enc.c.

Referenced by opengl_resize(), and opengl_write_header().

opengl_draw()

static int opengl_draw ( AVFormatContext *  h, void *  intput, int  repaint, int  is_pkt  )

static

Definition at line 1195 of file opengl_enc.c.

Referenced by opengl_resize(), opengl_write_frame(), and opengl_write_packet().

opengl_init_context()

static av_cold int opengl_init_context ( OpenGLContext *  opengl )

static

Definition at line 996 of file opengl_enc.c.

Referenced by opengl_write_header().

opengl_deinit_context()

static av_cold void opengl_deinit_context ( OpenGLContext *  opengl )

static

Definition at line 283 of file opengl_enc.c.

Referenced by opengl_write_trailer().

opengl_resize()

static int opengl_resize ( AVFormatContext *  h, int  width, int  height  )

static

Definition at line 309 of file opengl_enc.c.

Referenced by opengl_control_message().

opengl_control_message()

static int opengl_control_message ( AVFormatContext *  h, int  type, void *  data, size_t  data_size  )

static

Definition at line 329 of file opengl_enc.c.

opengl_load_procedures()

static int av_cold opengl_load_procedures ( OpenGLContext *  opengl )

static

Definition at line 490 of file opengl_enc.c.

Referenced by opengl_write_header().

opengl_make_identity()

static void opengl_make_identity ( float  matrix[16] )

static

Definition at line 545 of file opengl_enc.c.

Referenced by opengl_prepare_vertex().

opengl_make_ortho()

static void opengl_make_ortho ( float  matrix[16], float  left, float  right, float  bottom, float  top, float  nearZ, float  farZ  )

static

Definition at line 551 of file opengl_enc.c.

Referenced by opengl_prepare_vertex().

opengl_read_limits()

static av_cold int opengl_read_limits ( AVFormatContext *  h )

static

Definition at line 571 of file opengl_enc.c.

Referenced by opengl_write_header().

opengl_get_fragment_shader_code()

static const char* opengl_get_fragment_shader_code ( enum AVPixelFormat  format )

static

Definition at line 630 of file opengl_enc.c.

Referenced by opengl_compile_shaders().

opengl_type_size()

static int opengl_type_size ( GLenum  type )

static

Definition at line 640 of file opengl_enc.c.

Referenced by opengl_get_plane_pointer().

opengl_get_texture_params()

static av_cold void opengl_get_texture_params ( OpenGLContext *  opengl )

static

Definition at line 656 of file opengl_enc.c.

Referenced by opengl_write_header().

opengl_compute_display_area()

static void opengl_compute_display_area ( AVFormatContext *  s )

static

Definition at line 668 of file opengl_enc.c.

Referenced by opengl_prepare_vertex().

opengl_get_texture_size()

static av_cold void opengl_get_texture_size ( OpenGLContext *  opengl, int  in_width, int  in_height, int *  out_width, int *  out_height  )

static

Definition at line 692 of file opengl_enc.c.

Referenced by opengl_configure_texture(), and opengl_prepare_vertex().

opengl_fill_color_map()

static av_cold void opengl_fill_color_map ( OpenGLContext *  opengl )

static

Definition at line 710 of file opengl_enc.c.

Referenced by opengl_write_header().

opengl_load_shader()

static av_cold GLuint opengl_load_shader ( OpenGLContext *  opengl, GLenum  type, const char *  source  )

static

Definition at line 742 of file opengl_enc.c.

Referenced by opengl_compile_shaders().

opengl_compile_shaders()

static av_cold int opengl_compile_shaders ( OpenGLContext *  opengl, enum AVPixelFormat  pix_fmt  )

static

Definition at line 773 of file opengl_enc.c.

Referenced by opengl_init_context().

opengl_configure_texture()

static av_cold int opengl_configure_texture ( OpenGLContext *  opengl, GLuint  texture, GLsizei  width, GLsizei  height  )

static

Definition at line 842 of file opengl_enc.c.

Referenced by opengl_init_context().

opengl_prepare()

static int opengl_prepare ( OpenGLContext *  opengl )

static

Definition at line 907 of file opengl_enc.c.

Referenced by opengl_draw().

opengl_create_window()

static int opengl_create_window ( AVFormatContext *  h )

static

Definition at line 932 of file opengl_enc.c.

Referenced by opengl_write_header().

opengl_release_window()

static int opengl_release_window ( AVFormatContext *  h )

static

Definition at line 965 of file opengl_enc.c.

Referenced by opengl_write_trailer().

opengl_write_trailer()

static av_cold int opengl_write_trailer ( AVFormatContext *  h )

static

Definition at line 982 of file opengl_enc.c.

Referenced by opengl_write_header().

opengl_write_header()

static av_cold int opengl_write_header ( AVFormatContext *  h )

static

Definition at line 1055 of file opengl_enc.c.

opengl_get_plane_pointer()

static uint8_t* opengl_get_plane_pointer ( OpenGLContext *  opengl, AVPacket *  pkt, int  comp_index, const AVPixFmtDescriptor *  desc  )

static

Definition at line 1128 of file opengl_enc.c.

opengl_write_packet()

static int opengl_write_packet ( AVFormatContext *  h, AVPacket *  pkt  )

static

Definition at line 1258 of file opengl_enc.c.

opengl_write_frame()

static int opengl_write_frame ( AVFormatContext *  h, int  stream_index, AVFrame **  frame, unsigned  flags  )

static

Definition at line 1269 of file opengl_enc.c.

Variable Documentation

g_index

const GLushort g_index[6]

static

Initial value:

=
{
    0, 1, 2,
    0, 3, 2,
}

Definition at line 167 of file opengl_enc.c.

Referenced by opengl_draw(), and opengl_init_context().

opengl_format_desc

const struct OpenGLFormatDesc opengl_format_desc[]

static

Referenced by opengl_get_fragment_shader_code(), and opengl_get_texture_params().

options

const AVOption options[]

static

Initial value:

= {
    { "background",   "set background color",   OFFSET(background),   AV_OPT_TYPE_COLOR,  {.str = "black"}, 0, 0, ENC },
    { "no_window",    "disable default window", OFFSET(no_window),    AV_OPT_TYPE_INT,    {.i64 = 0}, INT_MIN, INT_MAX, ENC },
    { "window_title", "set window title",       OFFSET(window_title), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, ENC },
    { "window_size",  "set window size",        OFFSET(window_width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, ENC },
    { NULL }
}

Definition at line 1279 of file opengl_enc.c.

opengl_class

const AVClass opengl_class

static

Initial value:

= {
    .class_name = "opengl outdev",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
    .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
}

Definition at line 1287 of file opengl_enc.c.

ff_opengl_muxer

const FFOutputFormat ff_opengl_muxer

Initial value:

= {
    .p.name              = "opengl",
    .p.long_name         = NULL_IF_CONFIG_SMALL("OpenGL output"),
    .p.audio_codec       = AV_CODEC_ID_NONE,
    .p.video_codec       = AV_CODEC_ID_WRAPPED_AVFRAME,
    .p.flags             = AVFMT_NOFILE | AVFMT_VARIABLE_FPS | AVFMT_NOTIMESTAMPS,
    .p.priv_class        = &opengl_class,
    .priv_data_size = sizeof(OpenGLContext),
    .write_header   = opengl_write_header,
    .write_packet   = opengl_write_packet,
    .write_uncoded_frame = opengl_write_frame,
    .write_trailer  = opengl_write_trailer,
    .control_message = opengl_control_message,
}

Definition at line 1295 of file opengl_enc.c.