lzo.c 2.6 KB

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  1. /*
  2. * Copyright (c) 2006 Reimar Doeffinger
  3. *
  4. * This file is part of FFmpeg.
  5. *
  6. * FFmpeg is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU Lesser General Public
  8. * License as published by the Free Software Foundation; either
  9. * version 2.1 of the License, or (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 GNU
  14. * Lesser General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU Lesser General Public
  17. * License along with FFmpeg; if not, write to the Free Software
  18. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19. */
  20. #include <stdio.h>
  21. #include <lzo/lzo1x.h>
  22. #include "libavutil/log.h"
  23. #include "libavutil/lzo.h"
  24. #include "libavutil/mem.h"
  25. #define MAXSZ (10*1024*1024)
  26. /* Define one of these to 1 if you wish to benchmark liblzo
  27. * instead of our native implementation. */
  28. #define BENCHMARK_LIBLZO_SAFE 0
  29. #define BENCHMARK_LIBLZO_UNSAFE 0
  30. int main(int argc, char *argv[]) {
  31. FILE *in = fopen(argv[1], "rb");
  32. int comp_level = argc > 2 ? atoi(argv[2]) : 0;
  33. uint8_t *orig = av_malloc(MAXSZ + 16);
  34. uint8_t *comp = av_malloc(2*MAXSZ + 16);
  35. uint8_t *decomp = av_malloc(MAXSZ + 16);
  36. size_t s = fread(orig, 1, MAXSZ, in);
  37. lzo_uint clen = 0;
  38. long tmp[LZO1X_MEM_COMPRESS];
  39. int inlen, outlen;
  40. int i;
  41. av_log_set_level(AV_LOG_DEBUG);
  42. if (comp_level == 0) {
  43. lzo1x_1_compress(orig, s, comp, &clen, tmp);
  44. } else if (comp_level == 11) {
  45. lzo1x_1_11_compress(orig, s, comp, &clen, tmp);
  46. } else if (comp_level == 12) {
  47. lzo1x_1_12_compress(orig, s, comp, &clen, tmp);
  48. } else if (comp_level == 15) {
  49. lzo1x_1_15_compress(orig, s, comp, &clen, tmp);
  50. } else
  51. lzo1x_999_compress(orig, s, comp, &clen, tmp);
  52. for (i = 0; i < 300; i++) {
  53. START_TIMER
  54. inlen = clen; outlen = MAXSZ;
  55. #if BENCHMARK_LIBLZO_SAFE
  56. if (lzo1x_decompress_safe(comp, inlen, decomp, &outlen, NULL))
  57. #elif BENCHMARK_LIBLZO_UNSAFE
  58. if (lzo1x_decompress(comp, inlen, decomp, &outlen, NULL))
  59. #else
  60. if (av_lzo1x_decode(decomp, &outlen, comp, &inlen))
  61. #endif
  62. av_log(NULL, AV_LOG_ERROR, "decompression error\n");
  63. STOP_TIMER("lzod")
  64. }
  65. if (memcmp(orig, decomp, s))
  66. av_log(NULL, AV_LOG_ERROR, "decompression incorrect\n");
  67. else
  68. av_log(NULL, AV_LOG_ERROR, "decompression OK\n");
  69. fclose(in);
  70. av_free(orig);
  71. av_free(comp);
  72. av_free(decomp);
  73. return 0;
  74. }