opencl.c File Reference

#include <stdio.h>
#include <string.h>
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "formats.h"
#include "opencl.h"

Go to the source code of this file.

Functions
int	ff_opencl_filter_query_formats (AVFilterContext *avctx)
	Return that all inputs and outputs support only AV_PIX_FMT_OPENCL. More...
static int	opencl_filter_set_device (AVFilterContext *avctx, AVBufferRef *device)
int	ff_opencl_filter_config_input (AVFilterLink *inlink)
	Check that the input link contains a suitable hardware frames context and extract the device from it. More...
int	ff_opencl_filter_config_output (AVFilterLink *outlink)
	Create a suitable hardware frames context for the output. More...
int	ff_opencl_filter_init (AVFilterContext *avctx)
	Initialise an OpenCL filter context. More...
void	ff_opencl_filter_uninit (AVFilterContext *avctx)
	Uninitialise an OpenCL filter context. More...
int	ff_opencl_filter_load_program (AVFilterContext *avctx, const char **program_source_array, int nb_strings)
	Load a new OpenCL program from strings in memory. More...
int	ff_opencl_filter_load_program_from_file (AVFilterContext *avctx, const char *filename)
	Load a new OpenCL program from a file. More...
int	ff_opencl_filter_work_size_from_image (AVFilterContext *avctx, size_t *work_size, AVFrame *frame, int plane, int block_alignment)
	Find the work size needed needed for a given plane of an image. More...
void	ff_opencl_print_const_matrix_3x3 (AVBPrint *buf, const char *name_str, double mat[3][3])
	Print a 3x3 matrix into a buffer as __constant array, which could be included in an OpenCL program. More...

Function Documentation

ff_opencl_filter_query_formats()

int ff_opencl_filter_query_formats

(

AVFilterContext *

avctx

)

Return that all inputs and outputs support only AV_PIX_FMT_OPENCL.

Definition at line 28 of file opencl.c.

opencl_filter_set_device()

static int opencl_filter_set_device ( AVFilterContext *  avctx, AVBufferRef *  device  )

static

Definition at line 43 of file opencl.c.

Referenced by ff_opencl_filter_config_input(), and ff_opencl_filter_config_output().

ff_opencl_filter_config_input()

int ff_opencl_filter_config_input

(

AVFilterLink *

inlink

)

Check that the input link contains a suitable hardware frames context and extract the device from it.

Definition at line 60 of file opencl.c.

Referenced by program_opencl_init().

ff_opencl_filter_config_output()

int ff_opencl_filter_config_output

(

AVFilterLink *

outlink

)

Create a suitable hardware frames context for the output.

Definition at line 96 of file opencl.c.

Referenced by overlay_opencl_config_output(), program_opencl_config_output(), tonemap_opencl_config_output(), and transpose_opencl_config_output().

ff_opencl_filter_init()

int ff_opencl_filter_init

(

AVFilterContext *

avctx

)

Initialise an OpenCL filter context.

Definition at line 147 of file opencl.c.

Referenced by overlay_opencl_init(), and program_opencl_init().

ff_opencl_filter_uninit()

void ff_opencl_filter_uninit

(

AVFilterContext *

avctx

)

Uninitialise an OpenCL filter context.

Definition at line 156 of file opencl.c.

Referenced by avgblur_opencl_uninit(), colorkey_opencl_uninit(), convolution_opencl_uninit(), neighbor_opencl_uninit(), nlmeans_opencl_uninit(), overlay_opencl_uninit(), program_opencl_uninit(), tonemap_opencl_uninit(), transpose_opencl_uninit(), and unsharp_opencl_uninit().

ff_opencl_filter_load_program()

int ff_opencl_filter_load_program	(	AVFilterContext *	avctx,
		const char **	program_source_array,
		int	nb_strings
	)

Load a new OpenCL program from strings in memory.

Creates a new program and compiles it for the current device. Will log any build errors if compilation fails.

Definition at line 171 of file opencl.c.

Referenced by avgblur_opencl_init(), colorkey_opencl_init(), convolution_opencl_init(), ff_opencl_filter_load_program_from_file(), neighbor_opencl_init(), nlmeans_opencl_init(), overlay_opencl_load(), tonemap_opencl_init(), transpose_opencl_init(), and unsharp_opencl_init().

ff_opencl_filter_load_program_from_file()

int ff_opencl_filter_load_program_from_file	(	AVFilterContext *	avctx,
		const char *	filename
	)

Load a new OpenCL program from a file.

Same as ff_opencl_filter_load_program(), but from a file.

Definition at line 219 of file opencl.c.

Referenced by program_opencl_load().

ff_opencl_filter_work_size_from_image()

int ff_opencl_filter_work_size_from_image	(	AVFilterContext *	avctx,
		size_t *	work_size,
		AVFrame *	frame,
		int	plane,
		int	block_alignment
	)

Find the work size needed needed for a given plane of an image.

Definition at line 278 of file opencl.c.

Referenced by avgblur_opencl_filter_frame(), convolution_opencl_filter_frame(), filter_frame(), launch_kernel(), neighbor_opencl_filter_frame(), overlay_opencl_blend(), program_opencl_run(), transpose_opencl_filter_frame(), and unsharp_opencl_filter_frame().

ff_opencl_print_const_matrix_3x3()

void ff_opencl_print_const_matrix_3x3	(	AVBPrint *	buf,
		const char *	name_str,
		double	mat[3][3]
	)

Print a 3x3 matrix into a buffer as __constant array, which could be included in an OpenCL program.

Definition at line 341 of file opencl.c.

Referenced by tonemap_opencl_init().