Never assume the API of libav* to be stable unless at least 1 month has passed
 since the last major version increase.
 

 The last version increases were:

 libavcodec:  2011-04-18
 libavdevice: 2011-04-18
 libavfilter: 2011-04-18
 libavformat: 2011-04-18
 libpostproc: 2011-04-18

 libswscale:  2011-06-20

 libavutil:   2011-04-18

 
 
 API changes, most recent first:

 2011-12-08 - a502939 - lavfi 2.52.0
   Add av_buffersink_poll_frame() to buffersink.h.
 

 2011-12-08 - xxxxxxx - lavu 51.31.0
   Add av_log_format_line.
 

 2011-12-03 - xxxxxxx - lavu 51.30.0
   Add AVERROR_BUG.
 

 2011-xx-xx - xxxxxxx - lavu 51.28.1
   Add av_get_alt_sample_fmt() to samplefmt.h.
 

 2011-11-03 - 96949da - lavu 51.23.0

   Add av_strcasecmp() and av_strncasecmp() to avstring.h.
 

 2011-10-20 - b35e9e1 - lavu 51.22.0
   Add av_strtok() to avstring.h.
 

 2011-xx-xx - xxxxxxx - lavf 53.17.0
   Add avformat_open_input().
   Deprecate av_close_input_file() and av_close_input_stream().
 

 2011-xx-xx - xxxxxxx - lavc 53.25.0
   Add nb_samples and extended_data fields to AVFrame.
   Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
   Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
   avcodec_decode_audio4() writes output samples to an AVFrame, which allows
   audio decoders to use get_buffer().
 

 2011-xx-xx - xxxxxxx - lavc 53.24.0
   Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
   Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
   Change AVCodecContext.error[4] to [8] at next major bump.
   Add AV_NUM_DATA_POINTERS to simplify the bump transition.
 

 2011-11-23 - bbb46f3 - lavu 51.18.0

   Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
   av_samples_alloc(), to samplefmt.h.
 

 2011-11-23 - 8889cc4 - lavu 51.17.0

   Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
 

 2011-11-19 - f3a29b7 - lavc 53.21.0

   Move some AVCodecContext fields to a new private struct, AVCodecInternal,
   which is accessed from a new field, AVCodecContext.internal.
   - fields moved:
       AVCodecContext.internal_buffer       --> AVCodecInternal.buffer
       AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
       AVCodecContext.is_copy               --> AVCodecInternal.is_copy
 

 2011-11-16 - 6270671 - lavu 51.16.0
   Add av_timegm()
 

 2011-11-13 - lavf 53.15.0
   New interrupt callback API, allowing per-AVFormatContext/AVIOContext
   interrupt callbacks.
   6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
           AVFormatContext.
   1dee0ac Add avio_open2() with additional parameters. Those are
           an interrupt callback and an options AVDictionary.
           This will allow passing AVOptions to protocols after lavf
           54.0.
 

 2011-11-06 - ba04ecf - lavu 51.14.0

   Add av_strcasecmp() and av_strncasecmp() to avstring.h.
 

 2011-11-06 - 07b172f - lavu 51.13.0

   Add av_toupper()/av_tolower()
 

 2011-11-05 - b6d08f4 - lavf 53.13.0

   Add avformat_network_init()/avformat_network_uninit()
 

 2011-10-27 - 512557b - lavc 53.15.0

   Remove avcodec_parse_frame.
   Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
 

 2011-10-19 - 569129a - lavf 53.10.0

   Add avformat_new_stream(). Deprecate av_new_stream().
 

 2011-10-13 - b631fba - lavf 53.9.0

   Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
 

 2011-10-12 - lavu 51.12.0
   AVOptions API rewrite.
 
   - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
   - new setting/getting functions with slightly different semantics:
         dac66da av_set_string3 -> av_opt_set
                 av_set_double  -> av_opt_set_double
                 av_set_q       -> av_opt_set_q
                 av_set_int     -> av_opt_set_int
 
         41d9d51 av_get_string  -> av_opt_get
                 av_get_double  -> av_opt_get_double
                 av_get_q       -> av_opt_get_q
                 av_get_int     -> av_opt_get_int
 
   - 8c5dcaa trivial rename av_next_option -> av_opt_next
   - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
     and av_opt_find2()
 

 2011-09-22 - a70e787 - lavu 51.17.0

   Add av_x_if_null().
 

 2011-09-18 - 645cebb - lavc 53.16.0

   Add showall flag2
 

 2011-09-16 - ea8de10 - lavfi 2.42.0

   Add avfilter_all_channel_layouts.
 

 2011-09-16 - 9899037 - lavfi 2.41.0

   Rename avfilter_all_* function names to avfilter_make_all_*.
 
   In particular, apply the renames:
   avfilter_all_formats         -> avfilter_make_all_formats
   avfilter_all_channel_layouts -> avfilter_make_all_channel_layouts
   avfilter_all_packing_formats -> avfilter_make_all_packing_formats
 

 2011-09-12 - 4381bdd - lavfi 2.40.0

   Change AVFilterBufferRefAudioProps.sample_rate type from uint32_t to int.
 

 2011-09-12 - 2c03174 - lavfi 2.40.0

   Simplify signature for avfilter_get_audio_buffer(), make it
   consistent with avfilter_get_video_buffer().
 

 2011-09-06 - 4f7dfe1 - lavfi 2.39.0

   Rename libavfilter/vsink_buffer.h to libavfilter/buffersink.h.
 

 2011-09-06 - c4415f6 - lavfi 2.38.0

   Unify video and audio sink API.
 
   In particular, add av_buffersink_get_buffer_ref(), deprecate
   av_vsink_buffer_get_video_buffer_ref() and change the value for the
   opaque field passed to the abuffersink init function.
 

 2011-09-04 - 61e2e29 - lavu 51.16.0

   Add av_asprintf().
 

 2011-08-22 - dacd827 - lavf 53.10.0

   Add av_find_program_from_stream().
 

 2011-08-20 - 69e2c1a - lavu 51.13.0

   Add av_get_media_type_string().
 

 2011-09-03 - fb4ca26 - lavc 53.13.0

                        lavf 53.11.0

                        lsws  2.1.0
   Add {avcodec,avformat,sws}_get_class().
 

 2011-08-03 - c11fb82 - lavu 51.15.0

   Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
 

 2011-08-14 - 323b930 - lavu 51.12.0

   Add av_fifo_peek2(), deprecate av_fifo_peek().
 

 2011-08-16 - 48f9e45 - lavf 53.8.0

   Add avformat_query_codec().
 

 2011-08-16 - bca06e7 - lavc 53.11.0

   Add avcodec_get_type().
 

 2011-08-06 - 2f63440 - lavf 53.7.0

   Add error_recognition to AVFormatContext.
 

 2011-08-02 - 9d39cbf - lavc 53.9.1

   Add AV_PKT_FLAG_CORRUPT AVPacket flag.
 

 2011-07-16 - b57df29 - lavfi 2.27.0

   Add audio packing negotiation fields and helper functions.
 
   In particular, add AVFilterPacking enum, planar, in_packings and
   out_packings fields to AVFilterLink, and the functions:
   avfilter_set_common_packing_formats()
   avfilter_all_packing_formats()
 

 2011-07-10 - a67c061 - lavf 53.6.0

   Add avformat_find_stream_info(), deprecate av_find_stream_info().
 

 2011-07-10 - 0b950fe - lavc 53.8.0

   Add avcodec_open2(), deprecate avcodec_open().
 

 2011-07-01 - b442ca6 - lavf 53.5.0 - avformat.h
   Add function av_get_output_timestamp().
 

 2011-06-28 - 5129336 - lavu 51.11.0 - avutil.h
   Define the AV_PICTURE_TYPE_NONE value in AVPictureType enum.
 

 2011-06-19 - fd2c0a5 - lavfi 2.23.0 - avfilter.h

   Add layout negotiation fields and helper functions.
 
   In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
   and the functions:
   avfilter_set_common_sample_formats()
   avfilter_set_common_channel_layouts()
   avfilter_all_channel_layouts()
 

 2011-06-19 - 527ca39 - lavfi 2.22.0 - AVFilterFormats

   Change type of AVFilterFormats.formats from int * to int64_t *,
   and update formats handling API accordingly.
 
   avfilter_make_format_list() still takes a int32_t array and converts
   it to int64_t. A new function, avfilter_make_format64_list(), that
   takes int64_t arrays has been added.
 

 2011-06-19 - 44f669e - lavfi 2.21.0 - vsink_buffer.h

   Add video sink buffer and vsink_buffer.h public header.
 

 2011-06-12 - 9fdf772 - lavfi 2.18.0 - avcodec.h

   Add avfilter_get_video_buffer_ref_from_frame() function in
   libavfilter/avcodec.h.
 

 2011-06-12 - c535494 - lavfi 2.17.0 - avfiltergraph.h

   Add avfilter_inout_alloc() and avfilter_inout_free() functions.
 

 2011-06-12 - 6119b23 - lavfi 2.16.0 - avfilter_graph_parse()

   Change avfilter_graph_parse() signature.
 

 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h

   Add av_printf_format().
 

 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h

   Add avformat_open_input and avformat_write_header().
   Deprecate av_open_input_stream, av_open_input_file,
   AVFormatParameters and av_write_header.
 

 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h

   Add av_opt_set_dict() and av_opt_find().
   Deprecate av_find_opt().
   Add AV_DICT_APPEND flag.
 

 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h

   Add av_opt_flag_is_set().
 

 2011-06-10 - c381960 - lavfi 2.15.0 - avfilter_get_audio_buffer_ref_from_arrays

   Add avfilter_get_audio_buffer_ref_from_arrays() to avfilter.h.
 

 2011-06-09 - d9f80ea - lavu 51.8.0 - AVMetadata

   Move AVMetadata from lavf to lavu and rename it to
   AVDictionary -- new installed header dict.h.
   All av_metadata_* functions renamed to av_dict_*.
 

 2011-06-07 - a6703fa - lavu 51.8.0 - av_get_bytes_per_sample()

   Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
   Deprecate av_get_bits_per_sample_fmt().
 

 2011-06-05 - b39b062 - lavu 51.8.0 - opt.h

   Add av_opt_free convenience function.

 2011-06-06 - 95a0242 - lavfi 2.14.0 - AVFilterBufferRefAudioProps

   Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
   avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in
   place of size.
 

 2011-06-06 - 0bc2cca - lavu 51.6.0 - av_samples_alloc()

   Switch nb_channels and nb_samples parameters order in
   av_samples_alloc().
 

 2011-06-06 - e1c7414 - lavu 51.5.0 - av_samples_*

   Change the data layout created by av_samples_fill_arrays() and
   av_samples_alloc().
 

 2011-06-06 - 27bcf55 - lavfi 2.13.0 - vsrc_buffer.h

   Make av_vsrc_buffer_add_video_buffer_ref() accepts an additional
   flags parameter in input.
 

 2011-06-03 - e977ca2 - lavfi 2.12.0 - avfilter_link_free()

   Add avfilter_link_free() function.
 

 2011-06-02 - 5ad38d9 - lavu 51.4.0 - av_force_cpu_flags()

   Add av_cpu_flags() in libavutil/cpu.h.
 

 2011-05-28 - e71f260 - lavu 51.3.0 - pixdesc.h

   Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
   avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
 

 2011-05-25 - 30315a8 - lavf 53.3.0 - avformat.h

   Add fps_probe_size to AVFormatContext.
 

 2011-05-22 - 5ecdfd0 - lavf 53.2.0 - avformat.h

   Introduce avformat_alloc_output_context2() and deprecate
   avformat_alloc_output_context().
 

 2011-05-22 - 83db719 - lavfi 2.10.0 - vsrc_buffer.h

   Make libavfilter/vsrc_buffer.h public.
 

 2011-05-19 - c000a9f - lavfi 2.8.0 - avcodec.h

   Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
 

 2011-05-14 - 9fdf772 - lavfi 2.6.0 - avcodec.h

   Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
 

 2011-05-18 - 64150ff - lavc 53.7.0 - AVCodecContext.request_sample_fmt

   Add request_sample_fmt field to AVCodecContext.
 

 2011-05-10 - 188dea1 - lavc 53.6.0 - avcodec.h

   Deprecate AVLPCType and the following fields in
   AVCodecContext: lpc_coeff_precision, prediction_order_method,
   min_partition_order, max_partition_order, lpc_type, lpc_passes.
   Corresponding FLAC encoder options should be used instead.
 

 2011-05-07 - 9fdf772 - lavfi 2.5.0 - avcodec.h

   Add libavfilter/avcodec.h header and avfilter_copy_frame_props()
   function.
 

 2011-05-07 - 18ded93 - lavc 53.5.0 - AVFrame

   Add format field to AVFrame.
 

 2011-05-07 - 22333a6 - lavc 53.4.0 - AVFrame

   Add width and height fields to AVFrame.
 

 2011-05-01 - 35fe66a - lavfi 2.4.0 - avfilter.h

   Rename AVFilterBufferRefVideoProps.pixel_aspect to
   sample_aspect_ratio.
 

 2011-05-01 - 77e9dee - lavc 53.3.0 - AVFrame

   Add a sample_aspect_ratio field to AVFrame.
 

 2011-05-01 - 1ba5727 - lavc 53.2.0 - AVFrame

   Add a pkt_pos field to AVFrame.
 

 2011-04-29 - 35ceaa7 - lavu 51.2.0 - mem.h

   Add av_dynarray_add function for adding
   an element to a dynamic array.
 

 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h

   Add AVPictureType enum and av_get_picture_type_char(), deprecate
   FF_*_TYPE defines and av_get_pict_type_char() defined in
   libavcodec/avcodec.h.
 

 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h

   Add pict_type and key_frame fields to AVFilterBufferRefVideo.
 

 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer

   Add sample_aspect_ratio fields to vsrc_buffer arguments
 

 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h

   Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
 

 2011-04-15 - lavc 52.120.0 - avcodec.h
   AVPacket structure got additional members for passing side information:
     4de339e introduce side information for AVPacket
     2d8591c make containers pass palette change in AVPacket
 

 2011-04-12 - lavf 52.107.0 - avio.h
   Avio cleanup, part II - deprecate the entire URLContext API:
     175389c add avio_check as a replacement for url_exist
     ff1ec0c add avio_pause and avio_seek_time as replacements
             for _av_url_read_fseek/fpause
     cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
             should be used instead.
     80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
     f87b1b3 rename open flags: URL_* -> AVIO_*
     f8270bb add avio_enum_protocols.
     5593f03 deprecate URLProtocol.
     c486dad deprecate URLContext.
     026e175 deprecate the typedef for URLInterruptCB
     8e76a19 deprecate av_register_protocol2.
     b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
     1305d93 deprecate av_url_read_seek
     fa104e1 deprecate av_url_read_pause
     727c7aa deprecate url_get_filename().
     5958df3 deprecate url_max_packet_size().
     1869ea0 deprecate url_get_file_handle().
     32a97d4 deprecate url_filesize().
     e52a914 deprecate url_close().
     58a48c6 deprecate url_seek().
     925e908 deprecate url_write().
     dce3756 deprecate url_read_complete().
     bc371ac deprecate url_read().
     0589da0 deprecate url_open().
     62eaaea deprecate url_connect.
     5652bb9 deprecate url_alloc.
     333e894 deprecate url_open_protocol
     e230705 deprecate url_poll and URLPollEntry
 

 2011-04-08 - lavf 52.106.0 - avformat.h
   Minor avformat.h cleanup:
     a9bf9d8 deprecate av_guess_image2_codec
     c3675df rename avf_sdp_create->av_sdp_create
 

 2011-04-03 - lavf 52.105.0 - avio.h
   Large-scale renaming/deprecating of AVIOContext-related functions:
     724f6a0 deprecate url_fdopen
     403ee83 deprecate url_open_dyn_packet_buf
     6dc7d80 rename url_close_dyn_buf       -> avio_close_dyn_buf
     b92c545 rename url_open_dyn_buf        -> avio_open_dyn_buf
     8978fed introduce an AVIOContext.seekable field as a replacement for
             AVIOContext.is_streamed and url_is_streamed()
     b64030f deprecate get_checksum()
     4c4427a deprecate init_checksum()
     4ec153b deprecate udp_set_remote_url/get_local_port
     933e90a deprecate av_url_read_fseek/fpause
     8d9769a deprecate url_fileno
     b7f2fdd rename put_flush_packet -> avio_flush
     35f1023 deprecate url_close_buf
     83fddae deprecate url_open_buf
     d9d86e0 rename url_fprintf -> avio_printf
     59f65d9 deprecate url_setbufsize
     3e68b3b deprecate url_ferror
     e8bb2e2 deprecate url_fget_max_packet_size
     76aa876 rename url_fsize -> avio_size
     e519753 deprecate url_fgetc
     655e45e deprecate url_fgets
     a2704c9 rename url_ftell -> avio_tell
     e16ead0 deprecate get_strz() in favor of avio_get_str
     0300db8,2af07d3 rename url_fskip -> avio_skip
     6b4aa5d rename url_fseek -> avio_seek
     61840b4 deprecate put_tag
     22a3212 rename url_fopen/fclose -> avio_open/close.
     0ac8e2b deprecate put_nbyte
     77eb550 rename put_byte          -> avio_w8
                    put_[b/l]e<type>  -> avio_w[b/l]<type>
                    put_buffer        -> avio_write
     b7effd4 rename get_byte          -> avio_r8,
                    get_[b/l]e<type>  -> avio_r[b/l]<type>
                    get_buffer        -> avio_read
     b3db9ce deprecate get_partial_buffer
     8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
 

 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
   Add audio_service_type field to AVCodecContext.
 

 2011-03-17 - e309fdc - lavu 50.40.0 - pixfmt.h

   Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
 

 2011-03-02 - 863c471 - lavf  52.103.0 - av_pkt_dump2, av_pkt_dump_log2
   Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
   source stream timebase for outputting timestamps. Deprecate
   av_pkt_dump and av_pkt_dump_log.
 

 2011-02-20 - e731b8d - lavf  52.102.0 - avio.h
   * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
               original, and move it to a private header so it is no longer
               part of our public API. Instead, use av_alloc_put_byte().
   * ae628ec - rename ByteIOContext to AVIOContext.
 

 2011-02-16 - 09d171b - lavf  52.101.0 - avformat.h

                        lavu  52.39.0  - parseutils.h

   * 610219a - Add av_ prefix to dump_format().
   * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
   * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.

 2011-02-15 - lavu 52.38.0 - merge libavcore
   libavcore is merged back completely into libavutil
 

 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
   Add vbv_delay field to AVCodecContext
 

 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
   Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
 

 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
   Add sample_aspect_ratio field to AVFilterLink.
 

 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
   Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
 

 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()

   Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
   set thread_count before calling avcodec_open.
 

 2011-02-09 - 778b08a - lavc 52.111.0 - threading API

   Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
   release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
   Add thread_type and active_thread_type fields to AVCodecContext.
 

 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer

   Add av_probe_input_buffer() to avformat.h for probing format from a
   ByteIOContext.
 

 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h

   Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
 

 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
   Add avformat_free_context() in avformat.h.
 

 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
   Add CODEC_ID_PRORES to avcodec.h.
 

 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
   Add defines for H.264 * Constrained Baseline and Intra profiles
 

 2011-02-02 - lavf 52.95.0
   * 50196a9 - add a new installed header version.h.
   * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
     avio_{put,get}_str* functions.  Deprecate corresponding semi-public
     {put,get}_str*.
 
 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
   Make av_dlog public.
 

 2011-01-31 - 7b3ea55 - lavfi 1.76.0 - vsrc_buffer

   Add sample_aspect_ratio fields to vsrc_buffer arguments
 

 2011-01-31 - 910b5b8 - lavfi 1.75.0 - AVFilterLink sample_aspect_ratio

   Add sample_aspect_ratio field to AVFilterLink.
 

 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
   Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
 

 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
   Add av_metadata_copy() in avformat.h.
 

 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
   Deprecate reordered_opaque in favor of pkt_pts/dts.
 

 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
   Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
   to not mess up dts.
 

 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
   Add pkt_pts to AVFrame.
 

 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()

   Add av_get_profile_name to libavcodec/avcodec.h.
 

 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
   Add AV_PERM_NEG_LINESIZES in avfilter.h.
 

 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()

   Add av_find_best_stream to libavformat/avformat.h.
 

 2010-12-27 - r26103 - lavf 52.90.0
   Add AVFMT_NOSTREAMS flag for formats with no streams,
   like e.g. text metadata.
 

 2010-12-22 - r26073 - lavu 50.36.0 - file.h

   Add functions av_file_map() and av_file_unmap() in file.h.
 

 2010-12-19 - r26056 - lavu 50.35.0 - error.h

   Add "not found" error codes:
   AVERROR_DEMUXER_NOT_FOUND
   AVERROR_MUXER_NOT_FOUND
   AVERROR_DECODER_NOT_FOUND
   AVERROR_ENCODER_NOT_FOUND
   AVERROR_PROTOCOL_NOT_FOUND
   AVERROR_FILTER_NOT_FOUND
   AVERROR_BSF_NOT_FOUND
   AVERROR_STREAM_NOT_FOUND
 

 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
   Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
   avcodec.h to avcore.h.
 

 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
   Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
 

 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
   Deprecate avcodec_pix_fmt_string() in favor of
   pixdesc.h/av_get_pix_fmt_string().
 

 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()

   Add av_image_alloc() to libavcore/imgutils.h.
 

 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
   Add function avfilter_graph_create_filter() in avfiltergraph.h.
 

 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()

   Add function avfilter_get_video_buffer_ref_from_arrays() in
   avfilter.h.

 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
   Add a public audio channel API in audioconvert.h, and deprecate the
   corresponding functions in libavcodec:
   avcodec_get_channel_name()
   avcodec_get_channel_layout()
   avcodec_get_channel_layout_string()
   avcodec_channel_layout_num_channels()
   and the CH_* macros defined in libavcodec/avcodec.h.
 

 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
   Add av_append_packet().
 
 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
   Add av_grow_packet().
 

 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
   Add av_parse_color() declared in libavcore/parseutils.h.
 

 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
   Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
   fields.
 

 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h

   Make avfiltergraph.h public.
 

 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
   Remove declarations from avfiltergraph.h for the functions:
   avfilter_graph_check_validity()
   avfilter_graph_config_links()
   avfilter_graph_config_formats()
   which are now internal.
   Use avfilter_graph_config() instead.
 

 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
   Deprecate functions:
   av_parse_and_eval_expr(),
   av_parse_expr(),
   av_eval_expr(),
   av_free_expr(),
   in favor of the functions:
   av_expr_parse_and_eval(),
   av_expr_parse(),
   av_expr_eval(),
   av_expr_free().
 

 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
   Rename avfilter_destroy() to avfilter_free().
   This change breaks libavfilter API/ABI.
 

 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
   Remove graphparser.h header, move AVFilterInOut and
   avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
 

 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut

   Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
   This change breaks libavfilter API.
 

 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()

   Rename avfilter_graph_destroy() to avfilter_graph_free().
   This change breaks libavfilter API/ABI.
 

 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()

   Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
 

 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
   Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
   deprecate av_get_bits_per_sample_format().
 

 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
   Add sample format functions in libavcore/samplefmt.h:
   av_get_sample_fmt_name(),
   av_get_sample_fmt(),
   av_get_sample_fmt_string(),
   and deprecate the corresponding libavcodec/audioconvert.h functions:
   avcodec_get_sample_fmt_name(),
   avcodec_get_sample_fmt(),
   avcodec_sample_fmt_string().
 

 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
   Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
   SampleFormat.
 

 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
   Add the function avfilter_graph_config() in avfiltergraph.h.
 

 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
   Change demuxers to export metadata in generic format and
   muxers to accept generic format. Deprecate the public
   conversion API.
 

 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
   Add time_base field to AVFilterLink.
 

 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
   Move av_set_options_string() from libavfilter/parseutils.h to
   libavutil/opt.h.
 

 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
   Make the AVFilterLink fields srcpad and dstpad store the pointers to
   the source and destination pads, rather than their indexes.
 

 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
   Move av_get_token() from libavfilter/parseutils.h to
   libavutil/avstring.h.
 

 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
   Add the functions sws_alloc_context() and sws_init_context().
 

 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
   Move libavcodec/opt.h to libavutil/opt.h.
 

 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
   Default of av_log() changed due to many problems to the old no repeat
   detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
   enabling it for your app!.
 

 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
   Deprecate av_opt_show() in favor or av_opt_show2().
 
 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
   Add av_popcount() to libavutil/common.h.
 

 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
   Add av_get_cpu_flags().
 

 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
   Add av_image_copy().
 
 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
   Add av_image_copy_plane().
 

 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
   Adopt hierarchical scheme for the imgutils.h function names,
   deprecate the old names.
 

 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
   Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
   of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
 

 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
   Add avcodec_get_channel_layout() in audioconvert.h.
 

 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
   Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
 

 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
   Add av_fill_image_max_pixstep() in imgutils.h.
 

 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
   Add the AV_NE macro.
 

 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
   Implement AVFilterBufferRefAudioProps struct for audio properties,
   get_audio_buffer(), filter_samples() functions and related changes.
 

 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
   Add av_get_image_linesize() in imgutils.h.
 

 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
   Resize data and linesize arrays in AVFilterBufferRef to 8.
 
   This change breaks libavfilter API/ABI.
 

 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
   Add av_picture_data_copy in avcodec.h.
 

 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
   Change avfilter_open() signature:
   AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
   int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
 
   This change breaks libavfilter API/ABI.
 

 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
   Add a type field to AVFilterBufferRef, and move video specific
   properties to AVFilterBufferRefVideoProps.
 

   This change breaks libavfilter API/ABI.

 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
   Rename AVFilterLink fields:
   AVFilterLink.srcpic    ->  AVFilterLink.src_buf
   AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf
   AVFilterLink.outpic    ->  AVFilterLink.out_buf
 
 2010-08-07 - r24731 - lavfi 1.30.0
   Rename functions and fields:
   avfilter_(un)ref_pic       -> avfilter_(un)ref_buffer
   avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
   AVFilterBufferRef.pic      -> AVFilterBufferRef.buffer
 
 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
   Rename AVFilterPicRef to AVFilterBufferRef.
 

 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.

   NOTE: this was backported to 0.6

 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.

   NOTE: this was backported to 0.6

 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
   Add interlaced and top_field_first fields to AVFilterPicRef.
 

 ------------------------------8<-------------------------------------
                    0.6 branch was cut here
 ----------------------------->8--------------------------------------
 

 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