flacdsp.c 3.9 KB

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  1. /*
  2. * Copyright (c) 2015 James Almer
  3. *
  4. * This file is part of FFmpeg.
  5. *
  6. * FFmpeg is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or
  9. * (at your option) any later version.
  10. *
  11. * FFmpeg is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License along
  17. * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
  18. * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19. */
  20. #include <string.h>
  21. #include "checkasm.h"
  22. #include "libavcodec/flacdsp.h"
  23. #include "libavutil/common.h"
  24. #include "libavutil/internal.h"
  25. #include "libavutil/intreadwrite.h"
  26. #define BUF_SIZE 256
  27. #define MAX_CHANNELS 8
  28. #define randomize_buffers() \
  29. do { \
  30. int i, j; \
  31. for (i = 0; i < BUF_SIZE; i += 4) { \
  32. for (j = 0; j < channels; j++) { \
  33. uint32_t r = rnd() & (1 << (bits - 2)) - 1; \
  34. AV_WN32A(ref_src[j] + i, r); \
  35. AV_WN32A(new_src[j] + i, r); \
  36. } \
  37. } \
  38. } while (0)
  39. static void check_decorrelate(uint8_t **ref_dst, uint8_t **ref_src, uint8_t **new_dst, uint8_t **new_src,
  40. int channels, int bits) {
  41. declare_func(void, uint8_t **out, int32_t **in, int channels, int len, int shift);
  42. randomize_buffers();
  43. call_ref(ref_dst, (int32_t **)ref_src, channels, BUF_SIZE / sizeof(int32_t), 8);
  44. call_new(new_dst, (int32_t **)new_src, channels, BUF_SIZE / sizeof(int32_t), 8);
  45. if (memcmp(*ref_dst, *new_dst, bits == 16 ? BUF_SIZE * (channels/2) : BUF_SIZE * channels) ||
  46. memcmp(*ref_src, *new_src, BUF_SIZE * channels))
  47. fail();
  48. bench_new(new_dst, (int32_t **)new_src, channels, BUF_SIZE / sizeof(int32_t), 8);
  49. }
  50. void checkasm_check_flacdsp(void)
  51. {
  52. LOCAL_ALIGNED_16(uint8_t, ref_dst, [BUF_SIZE*MAX_CHANNELS]);
  53. LOCAL_ALIGNED_16(uint8_t, ref_buf, [BUF_SIZE*MAX_CHANNELS]);
  54. LOCAL_ALIGNED_16(uint8_t, new_dst, [BUF_SIZE*MAX_CHANNELS]);
  55. LOCAL_ALIGNED_16(uint8_t, new_buf, [BUF_SIZE*MAX_CHANNELS]);
  56. uint8_t *ref_src[] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1], &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3],
  57. &ref_buf[BUF_SIZE*4], &ref_buf[BUF_SIZE*5], &ref_buf[BUF_SIZE*6], &ref_buf[BUF_SIZE*7] };
  58. uint8_t *new_src[] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1], &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3],
  59. &new_buf[BUF_SIZE*4], &new_buf[BUF_SIZE*5], &new_buf[BUF_SIZE*6], &new_buf[BUF_SIZE*7] };
  60. static const char * const names[3] = { "ls", "rs", "ms" };
  61. static const struct {
  62. enum AVSampleFormat fmt;
  63. int bits;
  64. } fmts[] = {
  65. { AV_SAMPLE_FMT_S16, 16 },
  66. { AV_SAMPLE_FMT_S32, 32 },
  67. };
  68. FLACDSPContext h;
  69. int i, j;
  70. for (i = 0; i < 2; i++) {
  71. ff_flacdsp_init(&h, fmts[i].fmt, 2, 0);
  72. for (j = 0; j < 3; j++)
  73. if (check_func(h.decorrelate[j], "flac_decorrelate_%s_%d", names[j], fmts[i].bits))
  74. check_decorrelate(&ref_dst, ref_src, &new_dst, new_src, 2, fmts[i].bits);
  75. for (j = 2; j <= MAX_CHANNELS; j += 2) {
  76. ff_flacdsp_init(&h, fmts[i].fmt, j, 0);
  77. if (check_func(h.decorrelate[0], "flac_decorrelate_indep%d_%d", j, fmts[i].bits))
  78. check_decorrelate(&ref_dst, ref_src, &new_dst, new_src, j, fmts[i].bits);
  79. }
  80. }
  81. report("decorrelate");
  82. }