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Diffstat (limited to 'media/ffvpx/libavutil/hwcontext_internal.h')
| -rw-r--r-- | media/ffvpx/libavutil/hwcontext_internal.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/media/ffvpx/libavutil/hwcontext_internal.h b/media/ffvpx/libavutil/hwcontext_internal.h new file mode 100644 index 000000000..332062dda --- /dev/null +++ b/media/ffvpx/libavutil/hwcontext_internal.h @@ -0,0 +1,171 @@ +/* + * 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 + */ + +#ifndef AVUTIL_HWCONTEXT_INTERNAL_H +#define AVUTIL_HWCONTEXT_INTERNAL_H + +#include <stddef.h> + +#include "buffer.h" +#include "hwcontext.h" +#include "frame.h" +#include "pixfmt.h" + +typedef struct HWContextType { + enum AVHWDeviceType type; + const char *name; + + /** + * An array of pixel formats supported by the AVHWFramesContext instances + * Terminated by AV_PIX_FMT_NONE. + */ + const enum AVPixelFormat *pix_fmts; + + /** + * size of the public hardware-specific context, + * i.e. AVHWDeviceContext.hwctx + */ + size_t device_hwctx_size; + /** + * size of the private data, i.e. + * AVHWDeviceInternal.priv + */ + size_t device_priv_size; + + /** + * Size of the hardware-specific device configuration. + * (Used to query hwframe constraints.) + */ + size_t device_hwconfig_size; + + /** + * size of the public frame pool hardware-specific context, + * i.e. AVHWFramesContext.hwctx + */ + size_t frames_hwctx_size; + /** + * size of the private data, i.e. + * AVHWFramesInternal.priv + */ + size_t frames_priv_size; + + int (*device_create)(AVHWDeviceContext *ctx, const char *device, + AVDictionary *opts, int flags); + int (*device_derive)(AVHWDeviceContext *dst_ctx, + AVHWDeviceContext *src_ctx, int flags); + + int (*device_init)(AVHWDeviceContext *ctx); + void (*device_uninit)(AVHWDeviceContext *ctx); + + int (*frames_get_constraints)(AVHWDeviceContext *ctx, + const void *hwconfig, + AVHWFramesConstraints *constraints); + + int (*frames_init)(AVHWFramesContext *ctx); + void (*frames_uninit)(AVHWFramesContext *ctx); + + int (*frames_get_buffer)(AVHWFramesContext *ctx, AVFrame *frame); + int (*transfer_get_formats)(AVHWFramesContext *ctx, + enum AVHWFrameTransferDirection dir, + enum AVPixelFormat **formats); + int (*transfer_data_to)(AVHWFramesContext *ctx, AVFrame *dst, + const AVFrame *src); + int (*transfer_data_from)(AVHWFramesContext *ctx, AVFrame *dst, + const AVFrame *src); + + int (*map_to)(AVHWFramesContext *ctx, AVFrame *dst, + const AVFrame *src, int flags); + int (*map_from)(AVHWFramesContext *ctx, AVFrame *dst, + const AVFrame *src, int flags); + + int (*frames_derive_to)(AVHWFramesContext *dst_ctx, + AVHWFramesContext *src_ctx, int flags); + int (*frames_derive_from)(AVHWFramesContext *dst_ctx, + AVHWFramesContext *src_ctx, int flags); +} HWContextType; + +struct AVHWDeviceInternal { + const HWContextType *hw_type; + void *priv; + + /** + * For a derived device, a reference to the original device + * context it was derived from. + */ + AVBufferRef *source_device; +}; + +struct AVHWFramesInternal { + const HWContextType *hw_type; + void *priv; + + AVBufferPool *pool_internal; + + /** + * For a derived context, a reference to the original frames + * context it was derived from. + */ + AVBufferRef *source_frames; + /** + * Flags to apply to the mapping from the source to the derived + * frame context when trying to allocate in the derived context. + */ + int source_allocation_map_flags; +}; + +typedef struct HWMapDescriptor { + /** + * A reference to the original source of the mapping. + */ + AVFrame *source; + /** + * A reference to the hardware frames context in which this + * mapping was made. May be the same as source->hw_frames_ctx, + * but need not be. + */ + AVBufferRef *hw_frames_ctx; + /** + * Unmap function. + */ + void (*unmap)(AVHWFramesContext *ctx, + struct HWMapDescriptor *hwmap); + /** + * Hardware-specific private data associated with the mapping. + */ + void *priv; +} HWMapDescriptor; + +int ff_hwframe_map_create(AVBufferRef *hwframe_ref, + AVFrame *dst, const AVFrame *src, + void (*unmap)(AVHWFramesContext *ctx, + HWMapDescriptor *hwmap), + void *priv); + + +extern const HWContextType ff_hwcontext_type_cuda; +extern const HWContextType ff_hwcontext_type_d3d11va; +extern const HWContextType ff_hwcontext_type_drm; +extern const HWContextType ff_hwcontext_type_dxva2; +extern const HWContextType ff_hwcontext_type_opencl; +extern const HWContextType ff_hwcontext_type_qsv; +extern const HWContextType ff_hwcontext_type_vaapi; +extern const HWContextType ff_hwcontext_type_vdpau; +extern const HWContextType ff_hwcontext_type_videotoolbox; +extern const HWContextType ff_hwcontext_type_mediacodec; + +#endif /* AVUTIL_HWCONTEXT_INTERNAL_H */ |