From 416dc9a5e81729e3313bcc13aebc5faa082c63a3 Mon Sep 17 00:00:00 2001 From: Ruiling Song Date: Wed, 28 Nov 2018 10:27:38 +0800 Subject: lavf: add transpose_opencl filter Signed-off-by: Ruiling Song Signed-off-by: Mark Thompson --- libavfilter/vf_transpose_opencl.c | 288 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 288 insertions(+) create mode 100644 libavfilter/vf_transpose_opencl.c (limited to 'libavfilter/vf_transpose_opencl.c') diff --git a/libavfilter/vf_transpose_opencl.c b/libavfilter/vf_transpose_opencl.c new file mode 100644 index 0000000..dd678e9 --- /dev/null +++ b/libavfilter/vf_transpose_opencl.c @@ -0,0 +1,288 @@ +/* + * 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 + +#include "libavutil/avassert.h" +#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 "video.h" +#include "transpose.h" + +typedef struct TransposeOpenCLContext { + OpenCLFilterContext ocf; + int initialised; + int passthrough; ///< PassthroughType, landscape passthrough mode enabled + int dir; ///< TransposeDir + cl_kernel kernel; + cl_command_queue command_queue; +} TransposeOpenCLContext; + +static int transpose_opencl_init(AVFilterContext *avctx) +{ + TransposeOpenCLContext *ctx = avctx->priv; + cl_int cle; + int err; + + err = ff_opencl_filter_load_program(avctx, &ff_opencl_source_transpose, 1); + if (err < 0) + goto fail; + + ctx->command_queue = clCreateCommandQueue(ctx->ocf.hwctx->context, + ctx->ocf.hwctx->device_id, + 0, &cle); + CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create OpenCL " + "command queue %d.\n", cle); + + ctx->kernel = clCreateKernel(ctx->ocf.program, "transpose", &cle); + CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create kernel %d.\n", cle); + + + ctx->initialised = 1; + return 0; + +fail: + if (ctx->command_queue) + clReleaseCommandQueue(ctx->command_queue); + if (ctx->kernel) + clReleaseKernel(ctx->kernel); + return err; +} + +static int transpose_opencl_config_output(AVFilterLink *outlink) +{ + AVFilterContext *avctx = outlink->src; + TransposeOpenCLContext *s = avctx->priv; + AVFilterLink *inlink = avctx->inputs[0]; + const AVPixFmtDescriptor *desc_in = av_pix_fmt_desc_get(inlink->format); + int ret; + + if ((inlink->w >= inlink->h && + s->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) || + (inlink->w <= inlink->h && + s->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) { + if (inlink->hw_frames_ctx) { + outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx); + if (!outlink->hw_frames_ctx) + return AVERROR(ENOMEM); + } + av_log(avctx, AV_LOG_VERBOSE, + "w:%d h:%d -> w:%d h:%d (passthrough mode)\n", + inlink->w, inlink->h, inlink->w, inlink->h); + + return 0; + } else { + s->passthrough = TRANSPOSE_PT_TYPE_NONE; + } + + if (desc_in->log2_chroma_w != desc_in->log2_chroma_h) { + av_log(avctx, AV_LOG_ERROR, "Input format %s not supported.\n", + desc_in->name); + return AVERROR(EINVAL); + } + + s->ocf.output_width = inlink->h; + s->ocf.output_height = inlink->w; + ret = ff_opencl_filter_config_output(outlink); + if (ret < 0) + return ret; + + if (inlink->sample_aspect_ratio.num) + outlink->sample_aspect_ratio = av_div_q((AVRational) { 1, 1 }, + inlink->sample_aspect_ratio); + else + outlink->sample_aspect_ratio = inlink->sample_aspect_ratio; + + av_log(avctx, AV_LOG_VERBOSE, + "w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n", + inlink->w, inlink->h, s->dir, outlink->w, outlink->h, + s->dir == 1 || s->dir == 3 ? "clockwise" : "counterclockwise", + s->dir == 0 || s->dir == 3); + return 0; +} + +static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h) +{ + TransposeOpenCLContext *s = inlink->dst->priv; + + return s->passthrough ? + ff_null_get_video_buffer (inlink, w, h) : + ff_default_get_video_buffer(inlink, w, h); +} + +static int transpose_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input) +{ + AVFilterContext *avctx = inlink->dst; + AVFilterLink *outlink = avctx->outputs[0]; + TransposeOpenCLContext *ctx = avctx->priv; + AVFrame *output = NULL; + size_t global_work[2]; + cl_mem src, dst; + cl_int cle; + int err, p; + + 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->passthrough) + return ff_filter_frame(outlink, input); + + output = ff_get_video_buffer(outlink, outlink->w, outlink->h); + if (!output) { + err = AVERROR(ENOMEM); + goto fail; + } + + err = av_frame_copy_props(output, input); + if (err < 0) + goto fail; + + if (input->sample_aspect_ratio.num == 0) { + output->sample_aspect_ratio = input->sample_aspect_ratio; + } else { + output->sample_aspect_ratio.num = input->sample_aspect_ratio.den; + output->sample_aspect_ratio.den = input->sample_aspect_ratio.num; + } + + if (!ctx->initialised) { + err = transpose_opencl_init(avctx); + if (err < 0) + goto fail; + } + + for (p = 0; p < FF_ARRAY_ELEMS(output->data); p++) { + src = (cl_mem) input->data[p]; + dst = (cl_mem) output->data[p]; + + if (!dst) + break; + CL_SET_KERNEL_ARG(ctx->kernel, 0, cl_mem, &dst); + CL_SET_KERNEL_ARG(ctx->kernel, 1, cl_mem, &src); + CL_SET_KERNEL_ARG(ctx->kernel, 2, cl_int, &ctx->dir); + + err = ff_opencl_filter_work_size_from_image(avctx, global_work, output, + p, 16); + + cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel, 2, NULL, + global_work, NULL, + 0, NULL, NULL); + CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to enqueue kernel: %d.\n", cle); + } + cle = clFinish(ctx->command_queue); + CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to finish command queue: %d.\n", cle); + + 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 transpose_opencl_uninit(AVFilterContext *avctx) +{ + TransposeOpenCLContext *ctx = avctx->priv; + cl_int cle; + + 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->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(TransposeOpenCLContext, x) +#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) +static const AVOption transpose_opencl_options[] = { + { "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 3, FLAGS, "dir" }, + { "cclock_flip", "rotate counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" }, + { "clock", "rotate clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK }, .flags=FLAGS, .unit = "dir" }, + { "cclock", "rotate counter-clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK }, .flags=FLAGS, .unit = "dir" }, + { "clock_flip", "rotate clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP }, .flags=FLAGS, .unit = "dir" }, + + { "passthrough", "do not apply transposition if the input matches the specified geometry", + OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE}, 0, INT_MAX, FLAGS, "passthrough" }, + { "none", "always apply transposition", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE}, INT_MIN, INT_MAX, FLAGS, "passthrough" }, + { "portrait", "preserve portrait geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT}, INT_MIN, INT_MAX, FLAGS, "passthrough" }, + { "landscape", "preserve landscape geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, "passthrough" }, + + { NULL } +}; + +AVFILTER_DEFINE_CLASS(transpose_opencl); + +static const AVFilterPad transpose_opencl_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .get_video_buffer = get_video_buffer, + .filter_frame = &transpose_opencl_filter_frame, + .config_props = &ff_opencl_filter_config_input, + }, + { NULL } +}; + +static const AVFilterPad transpose_opencl_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = &transpose_opencl_config_output, + }, + { NULL } +}; + +AVFilter ff_vf_transpose_opencl = { + .name = "transpose_opencl", + .description = NULL_IF_CONFIG_SMALL("Transpose input video"), + .priv_size = sizeof(TransposeOpenCLContext), + .priv_class = &transpose_opencl_class, + .init = &ff_opencl_filter_init, + .uninit = &transpose_opencl_uninit, + .query_formats = &ff_opencl_filter_query_formats, + .inputs = transpose_opencl_inputs, + .outputs = transpose_opencl_outputs, + .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, +}; -- cgit v1.1