diff options
author | Mark Thompson <sw@jkqxz.net> | 2016-08-06 18:18:40 +0100 |
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committer | Mark Thompson <sw@jkqxz.net> | 2016-08-30 21:45:59 +0100 |
commit | 123ccd07c55ccf075cc5daf5581237fbccb86bdb (patch) | |
tree | abb0ac12c6b459fc8aa1b1c157bd01460de3de2d /libavcodec/vaapi_decode.h | |
parent | 72eba6558ee4f10239ba3f472c0b033ec70082a7 (diff) |
lavc: Rewrite VAAPI decode infrastructure
Moves much of the setup logic for VAAPI decoding into lavc; the user
now need only provide the hw_frames_ctx.
Diffstat (limited to 'libavcodec/vaapi_decode.h')
-rw-r--r-- | libavcodec/vaapi_decode.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/libavcodec/vaapi_decode.h b/libavcodec/vaapi_decode.h new file mode 100644 index 0000000000..7882925a25 --- /dev/null +++ b/libavcodec/vaapi_decode.h @@ -0,0 +1,90 @@ +/* + * 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 + */ + +#ifndef AVCODEC_VAAPI_DECODE_H +#define AVCODEC_VAAPI_DECODE_H + +#include <va/va.h> + +#include "libavutil/frame.h" +#include "libavutil/hwcontext.h" +#include "libavutil/hwcontext_vaapi.h" + +#include "avcodec.h" +#include "vaapi.h" + +static inline VASurfaceID ff_vaapi_get_surface_id(AVFrame *pic) +{ + return (uintptr_t)pic->data[3]; +} + +enum { + MAX_PARAM_BUFFERS = 16, +}; + +typedef struct VAAPIDecodePicture { + VASurfaceID output_surface; + + int nb_param_buffers; + VABufferID param_buffers[MAX_PARAM_BUFFERS]; + + int nb_slices; + VABufferID *slice_buffers; + int slices_allocated; +} VAAPIDecodePicture; + +typedef struct VAAPIDecodeContext { + VAProfile va_profile; + VAEntrypoint va_entrypoint; + VAConfigID va_config; + VAContextID va_context; + + int have_old_context; + struct vaapi_context *old_context; + AVBufferRef *device_ref; + + AVHWDeviceContext *device; + AVVAAPIDeviceContext *hwctx; + + AVHWFramesContext *frames; + AVVAAPIFramesContext *hwfc; +} VAAPIDecodeContext; + + +int ff_vaapi_decode_make_param_buffer(AVCodecContext *avctx, + VAAPIDecodePicture *pic, + int type, + const void *data, + size_t size); + +int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx, + VAAPIDecodePicture *pic, + const void *params_data, + size_t params_size, + const void *slice_data, + size_t slice_size); + +int ff_vaapi_decode_issue(AVCodecContext *avctx, + VAAPIDecodePicture *pic); +int ff_vaapi_decode_cancel(AVCodecContext *avctx, + VAAPIDecodePicture *pic); + +int ff_vaapi_decode_init(AVCodecContext *avctx); +int ff_vaapi_decode_uninit(AVCodecContext *avctx); + +#endif /* AVCODEC_VAAPI_DECODE_H */ |