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- Never assume the API of libav* to be stable unless at least 1 week has passed since
- the last major version increase.
- The last version increases were:
- libavcodec: ?
- libavcore: 2010-07-21
- libavdevice: ?
- libavfilter: 2009-10-18
- libavformat: ?
- libpostproc: ?
- libswscale: ?
- libavutil: 2009-03-08
-
-
- API changes, most recent first:
-
- 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
- Move format field from AVFilterBuffer to AVFilterPicRef.
-
- 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
- Deprecate avcodec_check_dimensions() in favor of the function
- av_check_image_size() defined in libavcore/imgutils.h.
-
- 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
- Increase size of the arrays AVFilterBuffer.data and
- AVFilterBuffer.linesize from 4 to 8.
-
- This change breaks libavfilter ABI.
-
- 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
- Add functions av_fill_image_linesizes() and
- av_fill_image_pointers(), declared in libavcore/imgutils.h.
-
- 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
- Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
- defined in libavcodec in favor of the newly added functions
- av_parse_video_size() and av_parse_video_rate() declared in
- libavcore/parseutils.h.
-
- 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
- Add the M_PHI constant definition.
-
- 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
- Add a type field to AVFilterLink.
-
- Change the field types:
- enum PixelFormat format -> int format in AVFilterBuffer
- enum PixelFormat *formats -> int *formats in AVFilterFormats
- enum PixelFormat *format -> int format in AVFilterLink
-
- Change the function signatures:
- AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
- AVFilterFormats *avfilter_make_format_list(const int *fmts);
-
- int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
- int avfilter_add_format (AVFilterFormats **avff, int fmt);
-
- AVFilterFormats *avfilter_all_colorspaces(void); ->
- AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
-
- This change breaks libavfilter API/ABI.
-
- 2010-07-21 - r24393 - lavcore 0.0.0
- Add libavcore.
-
- 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
- Remove w and h fields from AVFilterBuffer.
-
- 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
- Rename AVFilterPic to AVFilterBuffer.
-
- 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
- Make url_fskip() return an int error code instead of void.
-
- 2010-07-11 - r24199 - lavc 52.83.0
- Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
- Add AVLPCType enum.
- Deprecate AVCodecContext.use_lpc.
-
- 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
- Add a function for free the contents of a AVSubtitle generated by
- avcodec_decode_subtitle.
-
- 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
- Make the bswap.h and intreadwrite.h API public.
-
- 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
- Rename read/write_line() to av_read/write_image_line().
-
- 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
- Add avfilter_copy_picref_props().
-
- 2010-07-03 - r24021 - lavc 52.79.0
- Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
- FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
-
- 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
- Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
- lfg.h.
-
- 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
- Extend av_parse_color() syntax, make it accept an alpha value specifier and
- set the alpha value to 255 by default.
-
- 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
- Add priv_data_size and priv_data_class to URLProtocol.
-
- 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
- Add url_alloc() and url_connect().
-
- 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
- Add av_register_protocol2(), deprecating av_register_protocol().
-
- 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
- Add av_compare_mod() to libavutil/mathematics.h.
-
- 2010-06-05 - r23485 - lavu 50.18.0 - eval API
- Make the eval API public.
-
- 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
- Add AV_BASE64_SIZE() macro.
-
- 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
- Add av_get_codec_tag_string().
-
- 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
- Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
-
- 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
- Add CODEC_CAP_EXPERIMENTAL flag.
-
- 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
- Add av_get_random_seed().
-
- 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
- Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
-
- 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
- Add interlaced and top_field_first fields to AVFilterPicRef.
-
- 2010-05-01 - r23002 - lavf 52.62.0 - probe function
- Add av_probe_input_format2 to API, it allows ignoring probe
- results below given score and returns the actual probe score.
-
- 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
- Add a flag for av_metadata_set2() to disable overwriting of
- existing tags.
-
- 2010-04-01 - r22753 - lavc 52.66.0
- Add avcodec_get_edge_width().
-
- 2010-03-31 - r22750 - lavc 52.65.0
- Add avcodec_copy_context().
-
- 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
- Make av_match_ext() public.
-
- 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
- Move AVMediaType enum from libavcodec to libavutil.
-
- 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
- Define AVMediaType enum, and use it instead of enum CodecType, which
- is deprecated and will be dropped at the next major bump.
-
- 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
- Implement av_strerror().
-
- 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
- Support DCT-I and DST-I.
-
- 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
- Add AVFormatContext.start_time_realtime field.
-
- 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
- Add AVFilterPicRef.pos field.
-
- 2010-03-13 - r22501 - lavu 50.12.0 - error.h
- Move error code definitions from libavcodec/avcodec.h to
- the new public header libavutil/error.h.
-
- 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
- Add public FFT interface.
-
- 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
- Add av_stristr().
-
- 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
- Add av_tree_enumerate().
-
- 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
- Add av_compare_ts().
-
- 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
- Add sws_getCoefficients().
-
- 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
- Add a list of generic tag names, change 'author' -> 'artist',
- 'year' -> 'date'.
-
- 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
- Add av_get_pix_fmt().
-
- 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
- Change constness attributes of sws_scale() parameters.
-
- 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
- Add a log_ctx parameter to avfilter_graph_config_links().
-
- 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
- Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
-
- 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
- Change the avfilter_add_colorspace() signature, make it accept an
- (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
-
- 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
- Add avfilter_add_colorspace().
-
- 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
- Add av_match_ext(), it should be used in place of match_ext().
-
- 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
- Add av_guess_format(), it should be used in place of guess_format().
-
- 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
- Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
- AV_METADATA_DONT_STRDUP_VAL.
-
- 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
- Add av_d2str().
-
- 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
- Add avg_frame_rate.
-
- 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
- Introduce the av_bmg_next() function.
-
- 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
- Add a slice_dir parameter to avfilter_draw_slice().
-
- 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
- Remove the next field from AVFilter, this is not anymore required.
-
- 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
- Introduce the avfilter_next() function.
-
- 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
- Change the signature of avfilter_register() to make it return an
- int. This is required since now the registration operation may fail.
-
- 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
- Make the pixdesc.h API public.
-
- 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
- Add a next field to AVFilter, this is used for simplifying the
- registration and management of the registered filters.
-
- 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
- Add a description field to AVFilter.
-
- 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
- Change the interface of avfilter_make_format_list() from
- avfilter_make_format_list(int n, ...) to
- avfilter_make_format_list(enum PixelFormat *pix_fmts).
-
- 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
- Make avfilter_get_video_buffer() recursive and add the w and h
- parameters to it.
-
- 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
- Add w and h fields to AVFilterPic.
-
- 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
- This is now an unsigned int instead of a signed int.
-
- 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
- Add a pts field to AVSubtitle which gives the subtitle packet pts
- in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
- not work right without this.
-
- 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
- PKT_FLAG_KEY has been deprecated and will be dropped at the next
- major version. Use AV_PKT_FLAG_KEY instead.
-
- 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
- av_lockmgr_register() can be used to register a callback function
- that lavc (and in the future, libraries that depend on lavc) can use
- to implement mutexes. The application should provide a callback function
- that implements the AV_LOCK_* operations described in avcodec.h.
- When the lock manager is registered, FFmpeg is guaranteed to behave
- correctly in a multi-threaded application.
-
- 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
- av_free_packet() is no longer an inline function. It is now exported.
-
- 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
- Please use NULL instead. This has been supported since r16506
- (lavf > 52.23.1, lavc > 52.10.0).
-
- 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
- The old decoding functions are deprecated, all new code should use the
- new functions avcodec_decode_video2(), avcodec_decode_audio3() and
- avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
- argument instead of a const uint8_t *buf / int buf_size pair.
-
- 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
- Introduce the av_fifo_space() function.
-
- 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
- Move AVPacket declaration from libavformat/avformat.h to
- libavcodec/avcodec.h.
-
- 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
- Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
- PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
- Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
- PIX_FMT_BGR32_1 are now macros.
- avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
- Re-sort the enum PixelFormat list accordingly.
- This change breaks API/ABI backward compatibility.
-
- 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
- Add the enum PixelFormat values:
- PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
- PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
-
- 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
- The Mersenne Twister PRNG implemented through the av_random* functions
- was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
- instead.
-
- 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
- av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
- and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
- and av_fifo_realloc2.
- In addition, the order of the function arguments of av_fifo_generic_read
- was changed to match av_fifo_generic_write.
- The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
- applications, they may not use sizeof() or directly access members.
-
- 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
- Introduce a new metadata API (see av_metadata_get() and friends).
- The old API is now deprecated and should not be used anymore. This especially
- includes the following structure fields:
- - AVFormatContext.title
- - AVFormatContext.author
- - AVFormatContext.copyright
- - AVFormatContext.comment
- - AVFormatContext.album
- - AVFormatContext.year
- - AVFormatContext.track
- - AVFormatContext.genre
- - AVStream.language
- - AVStream.filename
- - AVProgram.provider_name
- - AVProgram.name
- - AVChapter.title
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