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  1. Never assume the API of libav* to be stable unless at least 1 week has passed since
  2. the last major version increase.
  3. The last version increases were:
  4. libavcodec: ?
  5. libavdevice: ?
  6. libavfilter: ?
  7. libavformat: ?
  8. libpostproc: ?
  9. libswscale: ?
  10. libavutil: 2009-03-08
  11. API changes, most recent first:
  12. 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
  13. Added w and h fields to AVFilterPic.
  14. 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
  15. This is now an unsigned int instead of a signed int.
  16. 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
  17. Added a pts field to AVSubtitle which gives the subtitle's packet
  18. PTS in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
  19. not work right without this.
  20. 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
  21. PKT_FLAG_KEY has been deprecated and will be dropped for the next
  22. major version. Use AV_PKT_FLAG_KEY instead.
  23. 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
  24. av_lockmgr_register() can be used to register a callback function
  25. that lavc (and in the future, libraries that depend on lavc) can use
  26. to implement mutexes. The application should provide a callback function
  27. the implements the AV_LOCK_* operations described in avcodec.h.
  28. When the lock manager is registered FFmpeg is guaranteed to behave
  29. correct also in a multi-threaded application.
  30. 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet
  31. av_free_packet() is no longer an inline function. It is now exported.
  32. 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree
  33. Please use NULL instead. This has been supported since r16506
  34. (lavf > 52.23.1, lavc > 52.10.0).
  35. 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
  36. The old decoding functions are deprecated, all new code should use the
  37. new functions avcodec_decode_video2(), avcodec_decode_audio3() and
  38. avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
  39. argument instead of a const uint8_t *buf / int buf_size pair.
  40. 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space
  41. Introduce the av_fifo_space() function.
  42. 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
  43. Move AVPacket declaration from libavformat/avformat.h to
  44. libavcodec/avcodec.h.
  45. 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
  46. Make the pixel formats: PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
  47. PIX_FMT_BGRA, which were defined as macros, defined as enum
  48. PixelFormat values, and viceversa make PIX_FMT_RGB32,
  49. PIX_FMT_RGB32_1, PIX_FMT_BGR32, PIX_FMT_BGR32_1 defined as macros.
  50. Also make avcodec_get_pix_fmt() recognize the "rgb32" and "bgr32"
  51. aliases.
  52. Re-sort the enum PixelFormat list accordingly.
  53. This change breaks API/ABI backward compatibility.
  54. 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
  55. Add the enum PixelFormat values:
  56. PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
  57. PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
  58. 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
  59. The Mersenne Twister PRNG implemented through the av_random* functions
  60. was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
  61. instead.
  62. 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
  63. av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
  64. and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
  65. and av_fifo_realloc2.
  66. In addition, the order of the function arguments of av_fifo_generic_read
  67. were changed to match av_fifo_generic_write.
  68. The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
  69. applications, they may not use sizeof() or directly access members.
  70. 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
  71. Introduce a new metadata API (see av_metadata_get() and friends).
  72. The old API is now deprecated and should not be used anymore. This especially
  73. includes the following structure fields:
  74. - AVFormatContext.title
  75. - AVFormatContext.author
  76. - AVFormatContext.copyright
  77. - AVFormatContext.comment
  78. - AVFormatContext.album
  79. - AVFormatContext.year
  80. - AVFormatContext.track
  81. - AVFormatContext.genre
  82. - AVStream.language
  83. - AVStream.filename
  84. - AVProgram.provider_name
  85. - AVProgram.name
  86. - AVChapter.title