mirror of https://git.ffmpeg.org/ffmpeg.git
236 lines
6.2 KiB
C
236 lines
6.2 KiB
C
/*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavutil/buffer.h"
|
|
#include "libavutil/hwcontext.h"
|
|
#include "libavutil/hwcontext_cuda.h"
|
|
#include "libavutil/log.h"
|
|
#include "libavutil/opt.h"
|
|
|
|
#include "avfilter.h"
|
|
#include "formats.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
typedef struct CudaUploadContext {
|
|
const AVClass *class;
|
|
int device_idx;
|
|
|
|
AVBufferRef *hwdevice;
|
|
AVBufferRef *hwframe;
|
|
} CudaUploadContext;
|
|
|
|
static void cudaupload_ctx_free(AVHWDeviceContext *ctx)
|
|
{
|
|
AVCUDADeviceContext *hwctx = ctx->hwctx;
|
|
cuCtxDestroy(hwctx->cuda_ctx);
|
|
}
|
|
|
|
static av_cold int cudaupload_init(AVFilterContext *ctx)
|
|
{
|
|
CudaUploadContext *s = ctx->priv;
|
|
|
|
AVHWDeviceContext *device_ctx;
|
|
AVCUDADeviceContext *device_hwctx;
|
|
CUdevice device;
|
|
CUcontext cuda_ctx = NULL, dummy;
|
|
CUresult err;
|
|
int ret;
|
|
|
|
err = cuInit(0);
|
|
if (err != CUDA_SUCCESS) {
|
|
av_log(ctx, AV_LOG_ERROR, "Could not initialize the CUDA driver API\n");
|
|
return AVERROR_UNKNOWN;
|
|
}
|
|
|
|
err = cuDeviceGet(&device, s->device_idx);
|
|
if (err != CUDA_SUCCESS) {
|
|
av_log(ctx, AV_LOG_ERROR, "Could not get the device number %d\n", s->device_idx);
|
|
return AVERROR_UNKNOWN;
|
|
}
|
|
|
|
err = cuCtxCreate(&cuda_ctx, 0, device);
|
|
if (err != CUDA_SUCCESS) {
|
|
av_log(ctx, AV_LOG_ERROR, "Error creating a CUDA context\n");
|
|
return AVERROR_UNKNOWN;
|
|
}
|
|
|
|
cuCtxPopCurrent(&dummy);
|
|
|
|
s->hwdevice = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_CUDA);
|
|
if (!s->hwdevice) {
|
|
cuCtxDestroy(cuda_ctx);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
device_ctx = (AVHWDeviceContext*)s->hwdevice->data;
|
|
device_ctx->free = cudaupload_ctx_free;
|
|
|
|
device_hwctx = device_ctx->hwctx;
|
|
device_hwctx->cuda_ctx = cuda_ctx;
|
|
|
|
ret = av_hwdevice_ctx_init(s->hwdevice);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold void cudaupload_uninit(AVFilterContext *ctx)
|
|
{
|
|
CudaUploadContext *s = ctx->priv;
|
|
|
|
av_buffer_unref(&s->hwframe);
|
|
av_buffer_unref(&s->hwdevice);
|
|
}
|
|
|
|
static int cudaupload_query_formats(AVFilterContext *ctx)
|
|
{
|
|
static const enum AVPixelFormat input_pix_fmts[] = {
|
|
AV_PIX_FMT_NV12, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV444P,
|
|
AV_PIX_FMT_NONE,
|
|
};
|
|
static const enum AVPixelFormat output_pix_fmts[] = {
|
|
AV_PIX_FMT_CUDA, AV_PIX_FMT_NONE,
|
|
};
|
|
AVFilterFormats *in_fmts = ff_make_format_list(input_pix_fmts);
|
|
AVFilterFormats *out_fmts = ff_make_format_list(output_pix_fmts);
|
|
|
|
ff_formats_ref(in_fmts, &ctx->inputs[0]->out_formats);
|
|
ff_formats_ref(out_fmts, &ctx->outputs[0]->in_formats);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cudaupload_config_output(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *ctx = outlink->src;
|
|
AVFilterLink *inlink = ctx->inputs[0];
|
|
CudaUploadContext *s = ctx->priv;
|
|
|
|
AVHWFramesContext *hwframe_ctx;
|
|
int ret;
|
|
|
|
av_buffer_unref(&s->hwframe);
|
|
s->hwframe = av_hwframe_ctx_alloc(s->hwdevice);
|
|
if (!s->hwframe)
|
|
return AVERROR(ENOMEM);
|
|
|
|
hwframe_ctx = (AVHWFramesContext*)s->hwframe->data;
|
|
hwframe_ctx->format = AV_PIX_FMT_CUDA;
|
|
hwframe_ctx->sw_format = inlink->format;
|
|
hwframe_ctx->width = FFALIGN(inlink->w, 16);
|
|
hwframe_ctx->height = FFALIGN(inlink->h, 16);
|
|
|
|
ret = av_hwframe_ctx_init(s->hwframe);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
outlink->hw_frames_ctx = av_buffer_ref(s->hwframe);
|
|
if (!outlink->hw_frames_ctx)
|
|
return AVERROR(ENOMEM);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cudaupload_filter_frame(AVFilterLink *link, AVFrame *in)
|
|
{
|
|
AVFilterContext *ctx = link->dst;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
|
|
AVFrame *out = NULL;
|
|
int ret;
|
|
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!out) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
out->width = in->width;
|
|
out->height = in->height;
|
|
|
|
ret = av_hwframe_transfer_data(out, in, 0);
|
|
if (ret < 0) {
|
|
av_log(ctx, AV_LOG_ERROR, "Error transferring data to the GPU\n");
|
|
goto fail;
|
|
}
|
|
|
|
ret = av_frame_copy_props(out, in);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
av_frame_free(&in);
|
|
|
|
return ff_filter_frame(ctx->outputs[0], out);
|
|
fail:
|
|
av_frame_free(&in);
|
|
av_frame_free(&out);
|
|
return ret;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(CudaUploadContext, x)
|
|
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
|
|
static const AVOption options[] = {
|
|
{ "device", "Number of the device to use", OFFSET(device_idx), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass cudaupload_class = {
|
|
.class_name = "cudaupload",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
static const AVFilterPad cudaupload_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = cudaupload_filter_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad cudaupload_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = cudaupload_config_output,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_hwupload_cuda = {
|
|
.name = "hwupload_cuda",
|
|
.description = NULL_IF_CONFIG_SMALL("Upload a system memory frame to a CUDA device"),
|
|
|
|
.init = cudaupload_init,
|
|
.uninit = cudaupload_uninit,
|
|
|
|
.query_formats = cudaupload_query_formats,
|
|
|
|
.priv_size = sizeof(CudaUploadContext),
|
|
.priv_class = &cudaupload_class,
|
|
|
|
.inputs = cudaupload_inputs,
|
|
.outputs = cudaupload_outputs,
|
|
|
|
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
|
|
};
|