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  1. /*
  2.  * Video Acceleration API (video decoding)
  3.  * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
  4.  *
  5.  * Copyright (C) 2008-2009 Splitted-Desktop Systems
  6.  *
  7.  * This file is part of FFmpeg.
  8.  *
  9.  * FFmpeg is free software; you can redistribute it and/or
  10.  * modify it under the terms of the GNU Lesser General Public
  11.  * License as published by the Free Software Foundation; either
  12.  * version 2.1 of the License, or (at your option) any later version.
  13.  *
  14.  * FFmpeg is distributed in the hope that it will be useful,
  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17.  * Lesser General Public License for more details.
  18.  *
  19.  * You should have received a copy of the GNU Lesser General Public
  20.  * License along with FFmpeg; if not, write to the Free Software
  21.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22.  */
  23.  
  24. #ifndef AVCODEC_VAAPI_INTERNAL_H
  25. #define AVCODEC_VAAPI_INTERNAL_H
  26.  
  27. #include <va/va.h>
  28. #include "vaapi.h"
  29. #include "avcodec.h"
  30. #include "mpegvideo.h"
  31.  
  32. /**
  33.  * @addtogroup VAAPI_Decoding
  34.  *
  35.  * @{
  36.  */
  37.  
  38. /** Extract VASurfaceID from a Picture */
  39. static inline VASurfaceID ff_vaapi_get_surface_id(Picture *pic)
  40. {
  41.     return (uintptr_t)pic->f.data[3];
  42. }
  43.  
  44. /** Common AVHWAccel.end_frame() implementation */
  45. void ff_vaapi_common_end_frame(AVCodecContext *avctx);
  46.  
  47. /** Allocate a new picture parameter buffer */
  48. void *ff_vaapi_alloc_pic_param(struct vaapi_context *vactx, unsigned int size);
  49.  
  50. /** Allocate a new IQ matrix buffer */
  51. void *ff_vaapi_alloc_iq_matrix(struct vaapi_context *vactx, unsigned int size);
  52.  
  53. /** Allocate a new bit-plane buffer */
  54. uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size);
  55.  
  56. /**
  57.  * Allocate a new slice descriptor for the input slice.
  58.  *
  59.  * @param vactx the VA API context
  60.  * @param buffer the slice data buffer base
  61.  * @param size the size of the slice in bytes
  62.  * @return the newly allocated slice parameter
  63.  */
  64. VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size);
  65.  
  66. int ff_vaapi_mpeg_end_frame(AVCodecContext *avctx);
  67. int ff_vaapi_commit_slices(struct vaapi_context *vactx);
  68. int ff_vaapi_render_picture(struct vaapi_context *vactx, VASurfaceID surface);
  69.  
  70. /* @} */
  71.  
  72. #endif /* AVCODEC_VAAPI_INTERNAL_H */
  73.