From 8f383f3c2783d2a9c5096019ddf3dfebb0b726fd Mon Sep 17 00:00:00 2001 From: Ruiling Song Date: Tue, 27 Mar 2018 09:12:42 +0800 Subject: [PATCH] lavf: add scale_opencl filter. Signed-off-by: Ruiling Song --- configure | 1 + libavfilter/Makefile | 2 + libavfilter/allfilters.c | 1 + libavfilter/opencl/scale.cl | 78 ++++++++++ libavfilter/opencl_source.h | 1 + libavfilter/vf_scale_opencl.c | 338 ++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 421 insertions(+) create mode 100644 libavfilter/opencl/scale.cl create mode 100644 libavfilter/vf_scale_opencl.c diff --git a/configure b/configure index 5ccf3ce..bab789a 100755 --- a/configure +++ b/configure @@ -3330,6 +3330,7 @@ tinterlace_merge_test_deps="tinterlace_filter" tinterlace_pad_test_deps="tinterlace_filter" tonemap_filter_deps="const_nan" unsharp_opencl_filter_deps="opencl" +scale_opencl_filter_deps="opencl" uspp_filter_deps="gpl avcodec" vaguedenoiser_filter_deps="gpl" vidstabdetect_filter_deps="libvidstab" diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 7f2ad1f..67c480a 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -302,6 +302,8 @@ OBJS-$(CONFIG_SAB_FILTER) += vf_sab.o OBJS-$(CONFIG_SCALE_FILTER) += vf_scale.o scale.o OBJS-$(CONFIG_SCALE_CUDA_FILTER) += vf_scale_cuda.o vf_scale_cuda.ptx.o OBJS-$(CONFIG_SCALE_NPP_FILTER) += vf_scale_npp.o scale.o +OBJS-$(CONFIG_SCALE_OPENCL_FILTER) += vf_scale_opencl.o opencl.o \ + opencl/scale.o OBJS-$(CONFIG_SCALE_QSV_FILTER) += vf_scale_qsv.o OBJS-$(CONFIG_SCALE_VAAPI_FILTER) += vf_scale_vaapi.o scale.o vaapi_vpp.o OBJS-$(CONFIG_SCALE2REF_FILTER) += vf_scale.o scale.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 1cf1340..3185b17 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -309,6 +309,7 @@ static void register_all(void) REGISTER_FILTER(SCALE, scale, vf); REGISTER_FILTER(SCALE_CUDA, scale_cuda, vf); REGISTER_FILTER(SCALE_NPP, scale_npp, vf); + REGISTER_FILTER(SCALE_OPENCL, scale_opencl, vf); REGISTER_FILTER(SCALE_QSV, scale_qsv, vf); REGISTER_FILTER(SCALE_VAAPI, scale_vaapi, vf); REGISTER_FILTER(SCALE2REF, scale2ref, vf); diff --git a/libavfilter/opencl/scale.cl b/libavfilter/opencl/scale.cl new file mode 100644 index 0000000..86d0015 --- /dev/null +++ b/libavfilter/opencl/scale.cl @@ -0,0 +1,78 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +__kernel void scale_bilinear_uchar(__write_only image2d_t dst, + __read_only image2d_t src, + int dst_width, + int dst_height, + int src_width, + int src_height) +{ + const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE | + CLK_FILTER_NEAREST); + int x = get_global_id(0); + int y = get_global_id(1); + float xi = (x + 0.5f) *src_width / dst_width; + float yi = (y + 0.5) * src_height / dst_height; + float xf = floor(xi); + float yf = floor(yi); + int xl = (int)xf; + int yl = (int)yf; + float a = xf - xl; + float b = yf - yl; + + float v1 = read_imagef(src, sampler, (int2)(xl, yl)).x; + float v2 = read_imagef(src, sampler, (int2)(xl + 1, yl)).x; + float v3 = read_imagef(src, sampler, (int2)(xl, yl + 1)).x; + float v4 = read_imagef(src, sampler, (int2)(xl+1, yl + 1)).x; + float sum = v1 * (1.0f - a) * (1.0f - b) + v2 * a * (1.0f - b) + + v3 * b*(1.0f-a) + v4 * a * b; + + write_imagef(dst, (int2)(x, y), (float4)(sum, 0.0f, 0.0f, 1.0f)); +} + +__kernel void scale_bilinear_uchar2(__write_only image2d_t dst, + __read_only image2d_t src, + int dst_width, + int dst_height, + int src_width, + int src_height) +{ + const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE | + CLK_FILTER_NEAREST); + int x = get_global_id(0); + int y = get_global_id(1); + float xi = (x + 0.5f) *src_width / dst_width; + float yi = (y + 0.5) * src_height / dst_height; + float xf = floor(xi); + float yf = floor(yi); + int xl = (int)xf; + int yl = (int)yf; + float a = xf - xl; + float b = yf - yl; + + float2 v1 = read_imagef(src, sampler, (int2)(xl, yl)).xy; + float2 v2 = read_imagef(src, sampler, (int2)(xl + 1, yl)).xy; + float2 v3 = read_imagef(src, sampler, (int2)(xl, yl + 1)).xy; + float2 v4 = read_imagef(src, sampler, (int2)(xl+1, yl + 1)).xy; + + float2 sum = v1 * (1.0f - a) * (1.0f - b) + v2 * a * (1.0f - b) + + v3 * b*(1.0f-a) + v4 * a * b; + + write_imagef(dst, (int2)(x, y), (float4)(sum.x, sum.y, 0.0f, 1.0f)); +} diff --git a/libavfilter/opencl_source.h b/libavfilter/opencl_source.h index 4bb9969..10e6092 100644 --- a/libavfilter/opencl_source.h +++ b/libavfilter/opencl_source.h @@ -23,5 +23,6 @@ extern const char *ff_opencl_source_avgblur; extern const char *ff_opencl_source_convolution; extern const char *ff_opencl_source_overlay; extern const char *ff_opencl_source_unsharp; +extern const char *ff_opencl_source_scale; #endif /* AVFILTER_OPENCL_SOURCE_H */ diff --git a/libavfilter/vf_scale_opencl.c b/libavfilter/vf_scale_opencl.c new file mode 100644 index 0000000..7bc35bc --- /dev/null +++ b/libavfilter/vf_scale_opencl.c @@ -0,0 +1,338 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/common.h" +#include "libavutil/imgutils.h" +#include "libavutil/mem.h" +#include "libavutil/opt.h" +#include "libavutil/pixdesc.h" + +#include "avfilter.h" +#include "internal.h" +#include "opencl.h" +#include "opencl_source.h" +#include "scale.h" +#include "video.h" + + +typedef struct ScaleOpenCLContext { + OpenCLFilterContext ocf; + + char *w_expr; ///< width expression string + char *h_expr; ///< height expression string + int initialised; + cl_kernel kernel; ///< uchar kernel + cl_kernel kernel2; ///< uchar2 kernel + cl_command_queue command_queue; + +} ScaleOpenCLContext; + +static int scale_opencl_init(AVFilterContext *avctx) +{ + ScaleOpenCLContext *ctx = avctx->priv; + cl_int cle; + int err; + + err = ff_opencl_filter_load_program(avctx, &ff_opencl_source_scale, 1); + if (err < 0) + goto fail; + + ctx->command_queue = clCreateCommandQueue(ctx->ocf.hwctx->context, + ctx->ocf.hwctx->device_id, + 0, &cle); + if (!ctx->command_queue) { + av_log(avctx, AV_LOG_ERROR, "Failed to create OpenCL " + "command queue: %d.\n", cle); + err = AVERROR(EIO); + goto fail; + } + + ctx->kernel = clCreateKernel(ctx->ocf.program, "scale_bilinear_uchar", &cle); + if (!ctx->kernel) { + av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle); + err = AVERROR(EIO); + goto fail; + } + + ctx->kernel2 = clCreateKernel(ctx->ocf.program, "scale_bilinear_uchar2", &cle); + if (!ctx->kernel2) { + av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle); + err = AVERROR(EIO); + goto fail; + } + ctx->initialised = 1; + return 0; + +fail: + if (ctx->command_queue) + clReleaseCommandQueue(ctx->command_queue); + if (ctx->kernel) + clReleaseKernel(ctx->kernel); + return err; +} + +static int scale_opencl_config_output(AVFilterLink *outlink) +{ + AVFilterContext *avctx = outlink->src; + ScaleOpenCLContext *s = avctx->priv; + AVFilterLink *inlink = outlink->src->inputs[0]; + int w, h, ret; + + if ((ret = ff_scale_eval_dimensions(s, + s->w_expr, s->h_expr, + inlink, outlink, + &w, &h)) < 0) + goto fail; + s->ocf.output_width = w; + s->ocf.output_height = h; + ret = ff_opencl_filter_config_output(outlink); + if (ret < 0) + return ret; + + return 0; +fail: + return ret; +} + +static int call_resize_kernel(AVFilterContext *avctx, cl_kernel kernel, + AVFrame *output, AVFrame *input, int plane, + int dst_width, int dst_height, + int src_width, int src_height) { + ScaleOpenCLContext *ctx = avctx->priv; + cl_mem dst = output->data[plane]; + cl_mem src = input->data[plane]; + int err = AVERROR(ENOSYS); + size_t global_work[2]; + size_t local_work[2]; + cl_int cle; + + cle = clSetKernelArg(kernel, 0, sizeof(cl_mem), &dst); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "destination image argument: %d.\n", cle); + return AVERROR(EINVAL); + } + cle = clSetKernelArg(kernel, 1, sizeof(cl_mem), &src); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "source image argument: %d.\n", cle); + return AVERROR(EINVAL); + } + + cle = clSetKernelArg(kernel, 2, sizeof(cl_int), &dst_width); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set arg @2 " + ": %d.\n", cle); + return AVERROR(EINVAL); + } + + cle = clSetKernelArg(kernel, 3, sizeof(cl_int), &dst_height); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "source image argument: %d.\n", cle); + return AVERROR(EINVAL); + } + + cle = clSetKernelArg(kernel, 4, sizeof(cl_int), &src_width); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "source image argument: %d.\n", cle); + return AVERROR(EINVAL); + } + + cle = clSetKernelArg(kernel, 5, sizeof(cl_int), &src_height); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "source image argument: %d.\n", cle); + return AVERROR(EINVAL); + } + + local_work[0] = 16; + local_work[1] = 16; + err = ff_opencl_filter_work_size_from_image(avctx, global_work, output, + plane, 16); + if (err < 0) + return err; + + cle = clEnqueueNDRangeKernel(ctx->command_queue, kernel, 2, NULL, + global_work, local_work, + 0, NULL, NULL); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to enqueue kernel: %d.\n", + cle); + return AVERROR(EIO); + } + return 0; +} + +static int scale_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input) +{ + AVFilterContext *avctx = inlink->dst; + AVFilterLink *outlink = avctx->outputs[0]; + ScaleOpenCLContext *ctx = avctx->priv; + AVFrame *output = NULL; + cl_int cle; + cl_mem src, dst; + int err, p; + AVHWFramesContext *input_frames_ctx = + (AVHWFramesContext*)input->hw_frames_ctx->data; + AVHWFramesContext *output_frames_ctx = + (AVHWFramesContext*)input->hw_frames_ctx->data; + + av_log(ctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n", + av_get_pix_fmt_name(input->format), + input->width, input->height, input->pts); + + if (!input->hw_frames_ctx) + return AVERROR(EINVAL); + + if (!ctx->initialised) { + err = scale_opencl_init(avctx); + if (err < 0) + goto fail; + } + + output = ff_get_video_buffer(outlink, outlink->w, outlink->h); + if (!output) { + err = AVERROR(ENOMEM); + goto fail; + } + + switch(input_frames_ctx->sw_format) { + case AV_PIX_FMT_YUV420P: + err = call_resize_kernel(avctx, ctx->kernel, output, input, 0, output->width, + output->height, input->width, input->height); + if (err < 0) goto fail; + err = call_resize_kernel(avctx, ctx->kernel, output, input, 1, output->width/2, + output->height/2, input->width/2, input->height/2); + if (err < 0) goto fail; + err = call_resize_kernel(avctx, ctx->kernel, output, input, 2, output->width, + output->height/2, input->width/2, input->height/2); + if (err < 0) goto fail; + break; + case AV_PIX_FMT_NV12: + err = call_resize_kernel(avctx, ctx->kernel, output, input, 0, output->width, + output->height, input->width, input->height); + if (err < 0) goto fail; + err = call_resize_kernel(avctx, ctx->kernel2, output, input, 1, output->width/2, + output->height/2, input->width/2, input->height/2); + if (err < 0) goto fail; + break; + default: + av_log(ctx, AV_LOG_ERROR, "unsupported format in scale_opencl.\n"); + err = AVERROR(ENOSYS); + goto fail; + } + + cle = clFinish(ctx->command_queue); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to finish command queue: %d.\n", + cle); + err = AVERROR(EIO); + goto fail; + } + + err = av_frame_copy_props(output, input); + if (err < 0) + goto fail; + + av_frame_free(&input); + + av_log(ctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n", + av_get_pix_fmt_name(output->format), + output->width, output->height, output->pts); + + return ff_filter_frame(outlink, output); + +fail: + clFinish(ctx->command_queue); + av_frame_free(&input); + av_frame_free(&output); + return err; +} + +static av_cold void scale_opencl_uninit(AVFilterContext *avctx) +{ + ScaleOpenCLContext *ctx = avctx->priv; + cl_int cle; + int i; + + if (ctx->kernel) { + cle = clReleaseKernel(ctx->kernel); + if (cle != CL_SUCCESS) + av_log(avctx, AV_LOG_ERROR, "Failed to release " + "kernel: %d.\n", cle); + } + + if (ctx->kernel2) { + cle = clReleaseKernel(ctx->kernel2); + if (cle != CL_SUCCESS) + av_log(avctx, AV_LOG_ERROR, "Failed to release " + "kernel: %d.\n", cle); + } + if (ctx->command_queue) { + cle = clReleaseCommandQueue(ctx->command_queue); + if (cle != CL_SUCCESS) + av_log(avctx, AV_LOG_ERROR, "Failed to release " + "command queue: %d.\n", cle); + } + + ff_opencl_filter_uninit(avctx); +} + +#define OFFSET(x) offsetof(ScaleOpenCLContext, x) +#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) +static const AVOption scale_opencl_options[] = { + { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS }, + { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS }, + { NULL } +}; + +AVFILTER_DEFINE_CLASS(scale_opencl); + +static const AVFilterPad scale_opencl_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = &scale_opencl_filter_frame, + .config_props = &ff_opencl_filter_config_input, + }, + { NULL } +}; + +static const AVFilterPad scale_opencl_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = &scale_opencl_config_output, + }, + { NULL } +}; + +AVFilter ff_vf_scale_opencl = { + .name = "scale_opencl", + .description = NULL_IF_CONFIG_SMALL("Scale input video"), + .priv_size = sizeof(ScaleOpenCLContext), + .priv_class = &scale_opencl_class, + .init = &ff_opencl_filter_init, + .uninit = &scale_opencl_uninit, + .query_formats = &ff_opencl_filter_query_formats, + .inputs = scale_opencl_inputs, + .outputs = scale_opencl_outputs, + .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, +}; -- 2.7.4