mlpdsp.h 3.6 KB

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  1. /*
  2. * MLP codec common header file
  3. * Copyright (c) 2007-2008 Ian Caulfield
  4. *
  5. * This file is part of FFmpeg.
  6. *
  7. * FFmpeg is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU Lesser General Public
  9. * License as published by the Free Software Foundation; either
  10. * version 2.1 of the License, or (at your option) any later version.
  11. *
  12. * FFmpeg is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15. * Lesser General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Lesser General Public
  18. * License along with FFmpeg; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20. */
  21. #ifndef AVCODEC_MLPDSP_H
  22. #define AVCODEC_MLPDSP_H
  23. #include <stdint.h>
  24. #include "mlp.h"
  25. void ff_mlp_rematrix_channel(int32_t *samples,
  26. const int32_t *coeffs,
  27. const uint8_t *bypassed_lsbs,
  28. const int8_t *noise_buffer,
  29. int index,
  30. unsigned int dest_ch,
  31. uint16_t blockpos,
  32. unsigned int maxchan,
  33. int matrix_noise_shift,
  34. int access_unit_size_pow2,
  35. int32_t mask);
  36. int32_t ff_mlp_pack_output(int32_t lossless_check_data,
  37. uint16_t blockpos,
  38. int32_t (*sample_buffer)[MAX_CHANNELS],
  39. void *data,
  40. uint8_t *ch_assign,
  41. int8_t *output_shift,
  42. uint8_t max_matrix_channel,
  43. int is32);
  44. typedef struct MLPDSPContext {
  45. void (*mlp_filter_channel)(int32_t *state, const int32_t *coeff,
  46. int firorder, int iirorder,
  47. unsigned int filter_shift, int32_t mask,
  48. int blocksize, int32_t *sample_buffer);
  49. void (*mlp_rematrix_channel)(int32_t *samples,
  50. const int32_t *coeffs,
  51. const uint8_t *bypassed_lsbs,
  52. const int8_t *noise_buffer,
  53. int index,
  54. unsigned int dest_ch,
  55. uint16_t blockpos,
  56. unsigned int maxchan,
  57. int matrix_noise_shift,
  58. int access_unit_size_pow2,
  59. int32_t mask);
  60. int32_t (*(*mlp_select_pack_output)(uint8_t *ch_assign,
  61. int8_t *output_shift,
  62. uint8_t max_matrix_channel,
  63. int is32))(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int);
  64. int32_t (*mlp_pack_output)(int32_t lossless_check_data,
  65. uint16_t blockpos,
  66. int32_t (*sample_buffer)[MAX_CHANNELS],
  67. void *data,
  68. uint8_t *ch_assign,
  69. int8_t *output_shift,
  70. uint8_t max_matrix_channel,
  71. int is32);
  72. } MLPDSPContext;
  73. void ff_mlpdsp_init(MLPDSPContext *c);
  74. void ff_mlpdsp_init_arm(MLPDSPContext *c);
  75. void ff_mlpdsp_init_x86(MLPDSPContext *c);
  76. #endif /* AVCODEC_MLPDSP_H */