FFmpeg: libavfilter/vf_hwupload_cuda.c Source File
Go to the documentation of this file. 1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
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38 {
40 char buf[64] = { 0 };
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42 snprintf(buf,
sizeof(buf),
"%d",
s->device_idx);
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63 #if CONFIG_VULKAN
65 #endif
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158
159 #define OFFSET(x) offsetof(CudaUploadContext, x)
160 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
164 };
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169 {
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183
185 .
name =
"hwupload_cuda",
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192 .priv_class = &cudaupload_class,
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196
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200 };
static const AVFilterPad cudaupload_outputs[]
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
const AVFilter ff_vf_hwupload_cuda
@ AV_PIX_FMT_CUDA
HW acceleration through CUDA.
AVPixelFormat
Pixel format.
Filter the word "frame" indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
static av_cold int cudaupload_init(AVFilterContext *ctx)
int av_hwframe_ctx_init(AVBufferRef *ref)
Finalize the context before use.
This structure describes decoded (raw) audio or video data.
AVBufferRef * av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
Allocate an AVHWFramesContext tied to a given device context.
#define FILTER_QUERY_FUNC(func)
static int cudaupload_query_formats(AVFilterContext *ctx)
AVBufferRef * av_buffer_ref(const AVBufferRef *buf)
Create a new reference to an AVBuffer.
const char * name
Filter name.
int width
The allocated dimensions of the frames in this pool.
A link between two filters.
@ AV_PIX_FMT_VULKAN
Vulkan hardware images.
static const AVOption cudaupload_options[]
static int cudaupload_filter_frame(AVFilterLink *link, AVFrame *in)
A filter pad used for either input or output.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
#define AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_0BGR32
AVFILTER_DEFINE_CLASS(cudaupload)
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define FILTER_INPUTS(array)
Filter the word "frame" indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a link
Describe the class of an AVClass context structure.
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static int cudaupload_config_output(AVFilterLink *outlink)
AVFilterContext * src
source filter
int w
agreed upon image width
static const AVFilterPad cudaupload_inputs[]
AVBufferRef * hw_frames_ctx
For hwaccel pixel formats, this should be a reference to the AVHWFramesContext describing the frames.
const char * name
Pad name.
This struct describes a set or pool of "hardware" frames (i.e.
@ AV_PIX_FMT_NV12
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
#define AV_PIX_FMT_0RGB32
int av_hwdevice_ctx_create(AVBufferRef **pdevice_ref, enum AVHWDeviceType type, const char *device, AVDictionary *opts, int flags)
Open a device of the specified type and create an AVHWDeviceContext for it.
int av_hwframe_transfer_data(AVFrame *dst, const AVFrame *src, int flags)
Copy data to or from a hw surface.
int h
agreed upon image height
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
A reference to a data buffer.
#define FILTER_OUTPUTS(array)
static av_cold void cudaupload_uninit(AVFilterContext *ctx)
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