286 lines
10 KiB
C
286 lines
10 KiB
C
/*
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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 <float.h>
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#include "libavutil/common.h"
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#include "libavutil/imgutils.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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#include "transpose.h"
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typedef struct TransposeOpenCLContext {
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OpenCLFilterContext ocf;
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int initialised;
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int passthrough; ///< PassthroughType, landscape passthrough mode enabled
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int dir; ///< TransposeDir
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cl_kernel kernel;
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cl_command_queue command_queue;
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} TransposeOpenCLContext;
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static int transpose_opencl_init(AVFilterContext *avctx)
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{
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TransposeOpenCLContext *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_source_transpose_cl, 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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CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create OpenCL "
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"command queue %d.\n", cle);
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ctx->kernel = clCreateKernel(ctx->ocf.program, "transpose", &cle);
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CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create kernel %d.\n", cle);
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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)
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clReleaseKernel(ctx->kernel);
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return err;
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}
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static int transpose_opencl_config_output(AVFilterLink *outlink)
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{
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AVFilterContext *avctx = outlink->src;
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TransposeOpenCLContext *s = avctx->priv;
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AVFilterLink *inlink = avctx->inputs[0];
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const AVPixFmtDescriptor *desc_in = av_pix_fmt_desc_get(inlink->format);
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int ret;
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if ((inlink->w >= inlink->h &&
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s->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) ||
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(inlink->w <= inlink->h &&
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s->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) {
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if (inlink->hw_frames_ctx) {
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outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx);
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if (!outlink->hw_frames_ctx)
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return AVERROR(ENOMEM);
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}
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av_log(avctx, AV_LOG_VERBOSE,
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"w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
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inlink->w, inlink->h, inlink->w, inlink->h);
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return 0;
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} else {
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s->passthrough = TRANSPOSE_PT_TYPE_NONE;
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}
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if (desc_in->log2_chroma_w != desc_in->log2_chroma_h) {
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av_log(avctx, AV_LOG_ERROR, "Input format %s not supported.\n",
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desc_in->name);
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return AVERROR(EINVAL);
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}
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s->ocf.output_width = inlink->h;
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s->ocf.output_height = inlink->w;
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ret = ff_opencl_filter_config_output(outlink);
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if (ret < 0)
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return ret;
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if (inlink->sample_aspect_ratio.num)
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outlink->sample_aspect_ratio = av_div_q((AVRational) { 1, 1 },
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inlink->sample_aspect_ratio);
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else
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outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
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av_log(avctx, AV_LOG_VERBOSE,
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"w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
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inlink->w, inlink->h, s->dir, outlink->w, outlink->h,
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s->dir == 1 || s->dir == 3 ? "clockwise" : "counterclockwise",
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s->dir == 0 || s->dir == 3);
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return 0;
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}
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static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
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{
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TransposeOpenCLContext *s = inlink->dst->priv;
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return s->passthrough ?
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ff_null_get_video_buffer (inlink, w, h) :
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ff_default_get_video_buffer(inlink, w, h);
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}
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static int transpose_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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TransposeOpenCLContext *ctx = avctx->priv;
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AVFrame *output = NULL;
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size_t global_work[2];
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cl_mem src, dst;
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cl_int cle;
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int err, p;
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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->passthrough)
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return ff_filter_frame(outlink, input);
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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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err = av_frame_copy_props(output, input);
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if (err < 0)
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goto fail;
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if (input->sample_aspect_ratio.num == 0) {
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output->sample_aspect_ratio = input->sample_aspect_ratio;
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} else {
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output->sample_aspect_ratio.num = input->sample_aspect_ratio.den;
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output->sample_aspect_ratio.den = input->sample_aspect_ratio.num;
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}
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if (!ctx->initialised) {
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err = transpose_opencl_init(avctx);
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if (err < 0)
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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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if (!dst)
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break;
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CL_SET_KERNEL_ARG(ctx->kernel, 0, cl_mem, &dst);
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CL_SET_KERNEL_ARG(ctx->kernel, 1, cl_mem, &src);
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CL_SET_KERNEL_ARG(ctx->kernel, 2, cl_int, &ctx->dir);
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err = ff_opencl_filter_work_size_from_image(avctx, global_work, output,
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p, 16);
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cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel, 2, NULL,
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global_work, NULL,
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0, NULL, NULL);
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CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to enqueue kernel: %d.\n", cle);
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}
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cle = clFinish(ctx->command_queue);
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CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to finish command queue: %d.\n", cle);
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av_frame_free(&input);
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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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return err;
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}
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static av_cold void transpose_opencl_uninit(AVFilterContext *avctx)
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{
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TransposeOpenCLContext *ctx = avctx->priv;
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cl_int cle;
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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(TransposeOpenCLContext, x)
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
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static const AVOption transpose_opencl_options[] = {
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{ "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 3, FLAGS, .unit = "dir" },
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{ "cclock_flip", "rotate counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
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{ "clock", "rotate clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK }, .flags=FLAGS, .unit = "dir" },
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{ "cclock", "rotate counter-clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK }, .flags=FLAGS, .unit = "dir" },
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{ "clock_flip", "rotate clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
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{ "passthrough", "do not apply transposition if the input matches the specified geometry",
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OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE}, 0, INT_MAX, FLAGS, .unit = "passthrough" },
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{ "none", "always apply transposition", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE}, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
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{ "portrait", "preserve portrait geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT}, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
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{ "landscape", "preserve landscape geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(transpose_opencl);
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static const AVFilterPad transpose_opencl_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.get_buffer.video = get_video_buffer,
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.filter_frame = &transpose_opencl_filter_frame,
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.config_props = &ff_opencl_filter_config_input,
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},
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};
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static const AVFilterPad transpose_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 = &transpose_opencl_config_output,
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},
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};
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const AVFilter ff_vf_transpose_opencl = {
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.name = "transpose_opencl",
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.description = NULL_IF_CONFIG_SMALL("Transpose input video"),
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.priv_size = sizeof(TransposeOpenCLContext),
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.priv_class = &transpose_opencl_class,
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.init = &ff_opencl_filter_init,
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.uninit = &transpose_opencl_uninit,
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FILTER_INPUTS(transpose_opencl_inputs),
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FILTER_OUTPUTS(transpose_opencl_outputs),
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FILTER_SINGLE_PIXFMT(AV_PIX_FMT_OPENCL),
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.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
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.flags = AVFILTER_FLAG_HWDEVICE,
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};
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