avc.h 2.0 KB

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  1. /*
  2. * AVC helper functions for muxers
  3. * Copyright (c) 2008 Aurelien Jacobs <aurel@gnuage.org>
  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 AVFORMAT_AVC_H
  22. #define AVFORMAT_AVC_H
  23. #include <stdint.h>
  24. #include "avio.h"
  25. int ff_avc_parse_nal_units(AVIOContext *s, const uint8_t *buf, int size);
  26. int ff_avc_parse_nal_units_buf(const uint8_t *buf_in, uint8_t **buf, int *size);
  27. int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len);
  28. const uint8_t *ff_avc_find_startcode(const uint8_t *p, const uint8_t *end);
  29. int ff_avc_write_annexb_extradata(const uint8_t *in, uint8_t **buf, int *size);
  30. const uint8_t *ff_avc_mp4_find_startcode(const uint8_t *start,
  31. const uint8_t *end,
  32. int nal_length_size);
  33. uint8_t *ff_nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len,
  34. uint32_t *dst_len, int header_len);
  35. typedef struct {
  36. uint8_t id;
  37. uint8_t profile_idc;
  38. uint8_t level_idc;
  39. uint8_t constraint_set_flags;
  40. uint8_t chroma_format_idc;
  41. uint8_t bit_depth_luma;
  42. uint8_t bit_depth_chroma;
  43. uint8_t frame_mbs_only_flag;
  44. AVRational sar;
  45. } H264SPS;
  46. int ff_avc_decode_sps(H264SPS *sps, const uint8_t *buf, int buf_size);
  47. #endif /* AVFORMAT_AVC_H */