mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
lavfi: Add filters to run arbitrary OpenCL programs
This commit is contained in:
Mark Thompson
parent
202b59cd3d
commit
dfdc146161
2
configure
vendored
2
configure
vendored
@ -3235,6 +3235,7 @@ negate_filter_deps="lut_filter"
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nnedi_filter_deps="gpl"
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ocr_filter_deps="libtesseract"
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ocv_filter_deps="libopencv"
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openclsrc_filter_deps="opencl"
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overlay_opencl_filter_deps="opencl"
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overlay_qsv_filter_deps="libmfx"
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overlay_qsv_filter_select="qsvvpp"
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@ -3244,6 +3245,7 @@ perspective_filter_deps="gpl"
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phase_filter_deps="gpl"
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pp7_filter_deps="gpl"
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pp_filter_deps="gpl postproc"
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program_opencl_filter_deps="opencl"
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pullup_filter_deps="gpl"
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removelogo_filter_deps="avcodec avformat swscale"
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repeatfields_filter_deps="gpl"
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@ -275,6 +275,7 @@ OBJS-$(CONFIG_PP_FILTER) += vf_pp.o
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OBJS-$(CONFIG_PP7_FILTER) += vf_pp7.o
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OBJS-$(CONFIG_PREMULTIPLY_FILTER) += vf_premultiply.o framesync.o
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OBJS-$(CONFIG_PREWITT_FILTER) += vf_convolution.o
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OBJS-$(CONFIG_PROGRAM_OPENCL_FILTER) += vf_program_opencl.o opencl.o framesync.o
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OBJS-$(CONFIG_PSEUDOCOLOR_FILTER) += vf_pseudocolor.o
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OBJS-$(CONFIG_PSNR_FILTER) += vf_psnr.o framesync.o
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OBJS-$(CONFIG_PULLUP_FILTER) += vf_pullup.o
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@ -370,6 +371,7 @@ OBJS-$(CONFIG_LIFE_FILTER) += vsrc_life.o
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OBJS-$(CONFIG_MANDELBROT_FILTER) += vsrc_mandelbrot.o
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OBJS-$(CONFIG_MPTESTSRC_FILTER) += vsrc_mptestsrc.o
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OBJS-$(CONFIG_NULLSRC_FILTER) += vsrc_testsrc.o
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OBJS-$(CONFIG_OPENCLSRC_FILTER) += vf_program_opencl.o opencl.o
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OBJS-$(CONFIG_RGBTESTSRC_FILTER) += vsrc_testsrc.o
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OBJS-$(CONFIG_SMPTEBARS_FILTER) += vsrc_testsrc.o
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OBJS-$(CONFIG_SMPTEHDBARS_FILTER) += vsrc_testsrc.o
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@ -284,6 +284,7 @@ static void register_all(void)
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REGISTER_FILTER(PP7, pp7, vf);
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REGISTER_FILTER(PREMULTIPLY, premultiply, vf);
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REGISTER_FILTER(PREWITT, prewitt, vf);
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REGISTER_FILTER(PROGRAM_OPENCL, program_opencl, vf);
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REGISTER_FILTER(PSEUDOCOLOR, pseudocolor, vf);
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REGISTER_FILTER(PSNR, psnr, vf);
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REGISTER_FILTER(PULLUP, pullup, vf);
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@ -378,6 +379,7 @@ static void register_all(void)
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REGISTER_FILTER(MANDELBROT, mandelbrot, vsrc);
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REGISTER_FILTER(MPTESTSRC, mptestsrc, vsrc);
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REGISTER_FILTER(NULLSRC, nullsrc, vsrc);
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REGISTER_FILTER(OPENCLSRC, openclsrc, vsrc);
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REGISTER_FILTER(RGBTESTSRC, rgbtestsrc, vsrc);
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REGISTER_FILTER(SMPTEBARS, smptebars, vsrc);
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REGISTER_FILTER(SMPTEHDBARS, smptehdbars, vsrc);
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441
libavfilter/vf_program_opencl.c
Normal file
441
libavfilter/vf_program_opencl.c
Normal file
@ -0,0 +1,441 @@
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/avstring.h"
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#include "libavutil/buffer.h"
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#include "libavutil/common.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_opencl.h"
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#include "libavutil/log.h"
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#include "libavutil/mem.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/opt.h"
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#include "avfilter.h"
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#include "framesync.h"
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#include "internal.h"
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#include "opencl.h"
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#include "video.h"
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typedef struct ProgramOpenCLContext {
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OpenCLFilterContext ocf;
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int loaded;
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cl_uint index;
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cl_kernel kernel;
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cl_command_queue command_queue;
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FFFrameSync fs;
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AVFrame **frames;
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const char *source_file;
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const char *kernel_name;
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int nb_inputs;
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int width, height;
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enum AVPixelFormat source_format;
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AVRational source_rate;
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} ProgramOpenCLContext;
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static int program_opencl_load(AVFilterContext *avctx)
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{
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ProgramOpenCLContext *ctx = avctx->priv;
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cl_int cle;
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int err;
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err = ff_opencl_filter_load_program_from_file(avctx, ctx->source_file);
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if (err < 0)
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return err;
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ctx->command_queue = clCreateCommandQueue(ctx->ocf.hwctx->context,
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ctx->ocf.hwctx->device_id,
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0, &cle);
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if (!ctx->command_queue) {
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av_log(avctx, AV_LOG_ERROR, "Failed to create OpenCL "
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"command queue: %d.\n", cle);
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return AVERROR(EIO);
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}
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ctx->kernel = clCreateKernel(ctx->ocf.program, ctx->kernel_name, &cle);
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if (!ctx->kernel) {
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if (cle == CL_INVALID_KERNEL_NAME) {
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av_log(avctx, AV_LOG_ERROR, "Kernel function '%s' not found in "
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"program.\n", ctx->kernel_name);
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} else {
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av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle);
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}
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return AVERROR(EIO);
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}
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ctx->loaded = 1;
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return 0;
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}
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static int program_opencl_run(AVFilterContext *avctx)
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{
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AVFilterLink *outlink = avctx->outputs[0];
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ProgramOpenCLContext *ctx = avctx->priv;
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AVFrame *output = NULL;
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cl_int cle;
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size_t global_work[2];
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cl_mem src, dst;
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int err, input, plane;
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if (!ctx->loaded) {
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err = program_opencl_load(avctx);
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if (err < 0)
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return err;
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}
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output = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!output) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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for (plane = 0; plane < FF_ARRAY_ELEMS(output->data); plane++) {
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dst = (cl_mem)output->data[plane];
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if (!dst)
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break;
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cle = clSetKernelArg(ctx->kernel, 0, sizeof(cl_mem), &dst);
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if (cle != CL_SUCCESS) {
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av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
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"destination image argument: %d.\n", cle);
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goto fail;
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}
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cle = clSetKernelArg(ctx->kernel, 1, sizeof(cl_uint), &ctx->index);
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if (cle != CL_SUCCESS) {
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av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
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"index argument: %d.\n", cle);
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goto fail;
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}
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for (input = 0; input < ctx->nb_inputs; input++) {
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av_assert0(ctx->frames[input]);
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src = (cl_mem)ctx->frames[input]->data[plane];
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av_assert0(src);
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cle = clSetKernelArg(ctx->kernel, 2 + input, sizeof(cl_mem), &src);
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if (cle != CL_SUCCESS) {
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av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
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"source image argument %d: %d.\n", input, cle);
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goto fail;
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}
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}
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cle = clGetImageInfo(dst, CL_IMAGE_WIDTH, sizeof(size_t),
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&global_work[0], NULL);
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cle = clGetImageInfo(dst, CL_IMAGE_HEIGHT, sizeof(size_t),
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&global_work[1], NULL);
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av_log(avctx, AV_LOG_DEBUG, "Run kernel on plane %d "
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"(%zux%zu).\n", plane, global_work[0], global_work[1]);
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cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel, 2, NULL,
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global_work, NULL, 0, NULL, NULL);
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if (cle != CL_SUCCESS) {
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av_log(avctx, AV_LOG_ERROR, "Failed to enqueue kernel: %d.\n",
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cle);
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err = AVERROR(EIO);
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goto fail;
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}
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}
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cle = clFinish(ctx->command_queue);
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if (cle != CL_SUCCESS) {
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av_log(avctx, AV_LOG_ERROR, "Failed to finish command queue: %d.\n",
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cle);
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err = AVERROR(EIO);
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goto fail;
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}
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if (ctx->nb_inputs > 0) {
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err = av_frame_copy_props(output, ctx->frames[0]);
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if (err < 0)
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goto fail;
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} else {
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output->pts = ctx->index;
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}
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++ctx->index;
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av_log(ctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
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av_get_pix_fmt_name(output->format),
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output->width, output->height, output->pts);
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return ff_filter_frame(outlink, output);
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fail:
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clFinish(ctx->command_queue);
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av_frame_free(&output);
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return err;
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}
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static int program_opencl_request_frame(AVFilterLink *outlink)
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{
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AVFilterContext *avctx = outlink->src;
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return program_opencl_run(avctx);
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}
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static int program_opencl_filter(FFFrameSync *fs)
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{
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AVFilterContext *avctx = fs->parent;
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ProgramOpenCLContext *ctx = avctx->priv;
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int err, i;
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for (i = 0; i < ctx->nb_inputs; i++) {
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err = ff_framesync_get_frame(&ctx->fs, i, &ctx->frames[i], 0);
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if (err < 0)
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return err;
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}
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return program_opencl_run(avctx);
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}
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static int program_opencl_activate(AVFilterContext *avctx)
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{
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ProgramOpenCLContext *ctx = avctx->priv;
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av_assert0(ctx->nb_inputs > 0);
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return ff_framesync_activate(&ctx->fs);
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}
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static int program_opencl_config_output(AVFilterLink *outlink)
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{
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AVFilterContext *avctx = outlink->src;
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ProgramOpenCLContext *ctx = avctx->priv;
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int err;
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err = ff_opencl_filter_config_output(outlink);
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if (err < 0)
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return err;
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if (ctx->nb_inputs > 0) {
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FFFrameSyncIn *in;
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int i;
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err = ff_framesync_init(&ctx->fs, avctx, ctx->nb_inputs);
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if (err < 0)
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return err;
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ctx->fs.opaque = ctx;
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ctx->fs.on_event = &program_opencl_filter;
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in = ctx->fs.in;
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for (i = 0; i < ctx->nb_inputs; i++) {
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const AVFilterLink *inlink = avctx->inputs[i];
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in[i].time_base = inlink->time_base;
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in[i].sync = 1;
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in[i].before = EXT_STOP;
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in[i].after = EXT_INFINITY;
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}
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err = ff_framesync_configure(&ctx->fs);
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if (err < 0)
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return err;
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} else {
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outlink->time_base = av_inv_q(ctx->source_rate);
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}
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return 0;
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}
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static av_cold int program_opencl_init(AVFilterContext *avctx)
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{
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ProgramOpenCLContext *ctx = avctx->priv;
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int err;
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ff_opencl_filter_init(avctx);
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ctx->ocf.output_width = ctx->width;
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ctx->ocf.output_height = ctx->height;
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if (!strcmp(avctx->filter->name, "openclsrc")) {
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if (!ctx->ocf.output_width || !ctx->ocf.output_height) {
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av_log(avctx, AV_LOG_ERROR, "OpenCL source requires output "
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"dimensions to be specified.\n");
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return AVERROR(EINVAL);
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}
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ctx->nb_inputs = 0;
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ctx->ocf.output_format = ctx->source_format;
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} else {
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int i;
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ctx->frames = av_mallocz_array(ctx->nb_inputs,
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sizeof(*ctx->frames));
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if (!ctx->frames)
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return AVERROR(ENOMEM);
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for (i = 0; i < ctx->nb_inputs; i++) {
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AVFilterPad input;
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memset(&input, 0, sizeof(input));
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input.type = AVMEDIA_TYPE_VIDEO;
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input.name = av_asprintf("input%d", i);
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if (!input.name)
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return AVERROR(ENOMEM);
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input.config_props = &ff_opencl_filter_config_input;
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err = ff_insert_inpad(avctx, i, &input);
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if (err < 0) {
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av_freep(&input.name);
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return err;
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}
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}
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}
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return 0;
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}
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static av_cold void program_opencl_uninit(AVFilterContext *avctx)
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{
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ProgramOpenCLContext *ctx = avctx->priv;
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cl_int cle;
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int i;
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if (ctx->nb_inputs > 0) {
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ff_framesync_uninit(&ctx->fs);
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av_freep(&ctx->frames);
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for (i = 0; i < avctx->nb_inputs; i++)
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av_freep(&avctx->input_pads[i].name);
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}
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if (ctx->kernel) {
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cle = clReleaseKernel(ctx->kernel);
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if (cle != CL_SUCCESS)
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av_log(avctx, AV_LOG_ERROR, "Failed to release "
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"kernel: %d.\n", cle);
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}
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if (ctx->command_queue) {
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cle = clReleaseCommandQueue(ctx->command_queue);
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if (cle != CL_SUCCESS)
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av_log(avctx, AV_LOG_ERROR, "Failed to release "
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"command queue: %d.\n", cle);
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}
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ff_opencl_filter_uninit(avctx);
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}
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#define OFFSET(x) offsetof(ProgramOpenCLContext, x)
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#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
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#if CONFIG_PROGRAM_OPENCL_FILTER
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static const AVOption program_opencl_options[] = {
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{ "source", "OpenCL program source file", OFFSET(source_file),
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AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
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{ "kernel", "Kernel name in program", OFFSET(kernel_name),
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AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
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{ "inputs", "Number of inputs", OFFSET(nb_inputs),
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AV_OPT_TYPE_INT, { .i64 = 1 }, 1, INT_MAX, FLAGS },
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{ "size", "Video size", OFFSET(width),
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AV_OPT_TYPE_IMAGE_SIZE, { .str = NULL }, 0, 0, FLAGS },
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{ "s", "Video size", OFFSET(width),
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AV_OPT_TYPE_IMAGE_SIZE, { .str = NULL }, 0, 0, FLAGS },
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{ NULL },
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};
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FRAMESYNC_DEFINE_CLASS(program_opencl, ProgramOpenCLContext, fs);
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static const AVFilterPad program_opencl_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = &program_opencl_config_output,
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},
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{ NULL }
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};
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AVFilter ff_vf_program_opencl = {
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.name = "program_opencl",
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.description = NULL_IF_CONFIG_SMALL("Filter video using an OpenCL program"),
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.priv_size = sizeof(ProgramOpenCLContext),
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.priv_class = &program_opencl_class,
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.preinit = &program_opencl_framesync_preinit,
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.init = &program_opencl_init,
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.uninit = &program_opencl_uninit,
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.query_formats = &ff_opencl_filter_query_formats,
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.activate = &program_opencl_activate,
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.inputs = NULL,
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.outputs = program_opencl_outputs,
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.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
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};
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#endif
|
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#if CONFIG_OPENCLSRC_FILTER
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static const AVOption openclsrc_options[] = {
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{ "source", "OpenCL program source file", OFFSET(source_file),
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AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
|
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{ "kernel", "Kernel name in program", OFFSET(kernel_name),
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AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
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|
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{ "size", "Video size", OFFSET(width),
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AV_OPT_TYPE_IMAGE_SIZE, { .str = NULL }, 0, 0, FLAGS },
|
||||
{ "s", "Video size", OFFSET(width),
|
||||
AV_OPT_TYPE_IMAGE_SIZE, { .str = NULL }, 0, 0, FLAGS },
|
||||
|
||||
{ "format", "Video format", OFFSET(source_format),
|
||||
AV_OPT_TYPE_PIXEL_FMT, { .i64 = AV_PIX_FMT_NONE }, -1, INT_MAX, FLAGS },
|
||||
|
||||
{ "rate", "Video frame rate", OFFSET(source_rate),
|
||||
AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 0, INT_MAX, FLAGS },
|
||||
{ "r", "Video frame rate", OFFSET(source_rate),
|
||||
AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 0, INT_MAX, FLAGS },
|
||||
|
||||
{ NULL },
|
||||
};
|
||||
|
||||
AVFILTER_DEFINE_CLASS(openclsrc);
|
||||
|
||||
static const AVFilterPad openclsrc_outputs[] = {
|
||||
{
|
||||
.name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.config_props = &program_opencl_config_output,
|
||||
.request_frame = &program_opencl_request_frame,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFilter ff_vsrc_openclsrc = {
|
||||
.name = "openclsrc",
|
||||
.description = NULL_IF_CONFIG_SMALL("Generate video using an OpenCL program"),
|
||||
.priv_size = sizeof(ProgramOpenCLContext),
|
||||
.priv_class = &openclsrc_class,
|
||||
.init = &program_opencl_init,
|
||||
.uninit = &program_opencl_uninit,
|
||||
.query_formats = &ff_opencl_filter_query_formats,
|
||||
.inputs = NULL,
|
||||
.outputs = openclsrc_outputs,
|
||||
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
|
||||
};
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user