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  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.  */
  18.  
  19. #ifndef AVCODEC_VDA_VT_INTERNAL_H
  20. #define AVCODEC_VDA_VT_INTERNAL_H
  21.  
  22. void ff_vda_output_callback(void *vda_hw_ctx,
  23.                             CFDictionaryRef user_info,
  24.                             OSStatus status,
  25.                             uint32_t infoFlags,
  26.                             CVImageBufferRef image_buffer);
  27.  
  28. int ff_vda_default_init(AVCodecContext *avctx);
  29. void ff_vda_default_free(AVCodecContext *avctx);
  30.  
  31. typedef struct VTContext {
  32.     // The current bitstream buffer.
  33.     uint8_t                     *bitstream;
  34.  
  35.     // The current size of the bitstream.
  36.     int                         bitstream_size;
  37.  
  38.     // The reference size used for fast reallocation.
  39.     int                         allocated_size;
  40.  
  41.     // The core video buffer
  42.     CVImageBufferRef            frame;
  43. } VTContext;
  44.  
  45. int ff_videotoolbox_alloc_frame(AVCodecContext *avctx, AVFrame *frame);
  46. int ff_videotoolbox_uninit(AVCodecContext *avctx);
  47. int ff_videotoolbox_buffer_create(VTContext *vtctx, AVFrame *frame);
  48. int ff_videotoolbox_h264_start_frame(AVCodecContext *avctx,
  49.                                      const uint8_t *buffer,
  50.                                      uint32_t size);
  51. int ff_videotoolbox_h264_decode_slice(AVCodecContext *avctx,
  52.                                       const uint8_t *buffer,
  53.                                       uint32_t size);
  54. CFDataRef ff_videotoolbox_avcc_extradata_create(AVCodecContext *avctx);
  55. #endif /* AVCODEC_VDA_VT_INTERNAL_H */
  56.