mirror of https://git.ffmpeg.org/ffmpeg.git
339 lines
10 KiB
C
339 lines
10 KiB
C
/*
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* Copyright (c) 2018 Dylan Fernando
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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/common.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/mem.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "opencl.h"
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#include "opencl_source.h"
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#include "video.h"
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typedef struct AverageBlurOpenCLContext {
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OpenCLFilterContext ocf;
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int initialised;
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cl_kernel kernel_horiz;
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cl_kernel kernel_vert;
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cl_command_queue command_queue;
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int radius;
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int radiusV;
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int planes;
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} AverageBlurOpenCLContext;
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static int avgblur_opencl_init(AVFilterContext *avctx)
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{
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AverageBlurOpenCLContext *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(avctx, &ff_opencl_source_avgblur, 1);
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if (err < 0)
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goto fail;
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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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err = AVERROR(EIO);
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goto fail;
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}
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ctx->kernel_horiz = clCreateKernel(ctx->ocf.program,"avgblur_horiz", &cle);
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if (!ctx->kernel_horiz) {
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av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle);
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err = AVERROR(EIO);
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goto fail;
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}
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ctx->kernel_vert = clCreateKernel(ctx->ocf.program,"avgblur_vert", &cle);
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if (!ctx->kernel_vert) {
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av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle);
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err = AVERROR(EIO);
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goto fail;
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}
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if (ctx->radiusV <= 0) {
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ctx->radiusV = ctx->radius;
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}
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ctx->initialised = 1;
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return 0;
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fail:
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if (ctx->command_queue)
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clReleaseCommandQueue(ctx->command_queue);
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if (ctx->kernel_horiz)
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clReleaseKernel(ctx->kernel_horiz);
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if (ctx->kernel_vert)
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clReleaseKernel(ctx->kernel_vert);
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return err;
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}
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static int avgblur_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input)
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{
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AVFilterContext *avctx = inlink->dst;
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AVFilterLink *outlink = avctx->outputs[0];
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AverageBlurOpenCLContext *ctx = avctx->priv;
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AVFrame *output = NULL;
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AVFrame *intermediate = 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, inter;
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int err, p, radius_x, radius_y;
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av_log(ctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
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av_get_pix_fmt_name(input->format),
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input->width, input->height, input->pts);
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if (!input->hw_frames_ctx)
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return AVERROR(EINVAL);
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if (!ctx->initialised) {
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err = avgblur_opencl_init(avctx);
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if (err < 0)
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goto fail;
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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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intermediate = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!intermediate) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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for (p = 0; p < FF_ARRAY_ELEMS(output->data); p++) {
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src = (cl_mem) input->data[p];
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dst = (cl_mem)output->data[p];
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inter = (cl_mem) intermediate->data[p];
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if (!dst)
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break;
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radius_x = ctx->radius;
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radius_y = ctx->radiusV;
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if (!(ctx->planes & (1 << p))) {
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radius_x = 0;
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radius_y = 0;
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}
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cle = clSetKernelArg(ctx->kernel_horiz, 0, sizeof(cl_mem), &inter);
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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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err = AVERROR_UNKNOWN;
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goto fail;
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}
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cle = clSetKernelArg(ctx->kernel_horiz, 1, 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.\n", cle);
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err = AVERROR_UNKNOWN;
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goto fail;
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}
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cle = clSetKernelArg(ctx->kernel_horiz, 2, sizeof(cl_int), &radius_x);
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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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"sizeX argument: %d.\n", cle);
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err = AVERROR_UNKNOWN;
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goto fail;
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}
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err = ff_opencl_filter_work_size_from_image(avctx, global_work,
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intermediate, p, 0);
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if (err < 0)
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goto fail;
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av_log(avctx, AV_LOG_DEBUG, "Run kernel on plane %d "
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"(%"SIZE_SPECIFIER"x%"SIZE_SPECIFIER").\n",
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p, global_work[0], global_work[1]);
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cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel_horiz, 2, NULL,
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global_work, NULL,
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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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cle = clSetKernelArg(ctx->kernel_vert, 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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err = AVERROR_UNKNOWN;
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goto fail;
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}
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cle = clSetKernelArg(ctx->kernel_vert, 1, sizeof(cl_mem), &inter);
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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.\n", cle);
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err = AVERROR_UNKNOWN;
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goto fail;
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}
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cle = clSetKernelArg(ctx->kernel_vert, 2, sizeof(cl_int), &radius_y);
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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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"sizeY argument: %d.\n", cle);
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err = AVERROR_UNKNOWN;
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goto fail;
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}
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err = ff_opencl_filter_work_size_from_image(avctx, global_work,
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output, p, 0);
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if (err < 0)
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goto fail;
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av_log(avctx, AV_LOG_DEBUG, "Run kernel on plane %d "
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"(%"SIZE_SPECIFIER"x%"SIZE_SPECIFIER").\n",
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p, global_work[0], global_work[1]);
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cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel_vert, 2, NULL,
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global_work, NULL,
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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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err = av_frame_copy_props(output, input);
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if (err < 0)
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goto fail;
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av_frame_free(&input);
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av_frame_free(&intermediate);
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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(&input);
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av_frame_free(&output);
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av_frame_free(&intermediate);
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return err;
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}
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static av_cold void avgblur_opencl_uninit(AVFilterContext *avctx)
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{
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AverageBlurOpenCLContext *ctx = avctx->priv;
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cl_int cle;
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if (ctx->kernel_horiz) {
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cle = clReleaseKernel(ctx->kernel_horiz);
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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->kernel_vert) {
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cle = clReleaseKernel(ctx->kernel_vert);
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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(AverageBlurOpenCLContext, x)
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
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static const AVOption avgblur_opencl_options[] = {
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{ "sizeX", "set horizontal size", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 1024, FLAGS },
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{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
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{ "sizeY", "set vertical size", OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0}, 0, 1024, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(avgblur_opencl);
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static const AVFilterPad avgblur_opencl_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = &avgblur_opencl_filter_frame,
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.config_props = &ff_opencl_filter_config_input,
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},
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{ NULL }
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};
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static const AVFilterPad avgblur_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 = &ff_opencl_filter_config_output,
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},
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{ NULL }
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};
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AVFilter ff_vf_avgblur_opencl = {
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.name = "avgblur_opencl",
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.description = NULL_IF_CONFIG_SMALL("Apply average blur filter"),
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.priv_size = sizeof(AverageBlurOpenCLContext),
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.priv_class = &avgblur_opencl_class,
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.init = &ff_opencl_filter_init,
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.uninit = &avgblur_opencl_uninit,
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.query_formats = &ff_opencl_filter_query_formats,
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.inputs = avgblur_opencl_inputs,
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.outputs = avgblur_opencl_outputs,
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.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
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};
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