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: 2012-01-27 libavdevice: 2011-04-18 libavfilter: 2011-04-18 libavformat: 2012-01-27 libswscale: 2011-06-20 libavutil: 2011-04-18 API changes, most recent first: 2012-03-xx - xxxxxxx - lavu 51.25.0 - cpu.h Add av_set_cpu_flags_mask(). 2012-xx-xx - lavc 54.8.0 xxxxxxx Add av_get_exact_bits_per_sample() xxxxxxx Add av_get_audio_frame_duration() 2012-03-xx - xxxxxxx - lavc 54.7.0 - avcodec.h Add av_codec_is_encoder/decoder(). 2012-xx-xx - xxxxxxx - lavc 54.3.0 - avcodec.h Add av_packet_shrink_side_data. 2012-xx-xx - xxxxxxx - lavf 54.2.0 - avformat.h Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC, used for dealing with attached pictures/cover art. 2012-02-25 - c9bca80 - lavu 51.24.0 - error.h Add AVERROR_UNKNOWN 2012-02-20 - e9cda85 - lavc 54.2.0 Add duration field to AVCodecParserContext 2012-02-20 - 0b42a93 - lavu 51.23.1 - mathematics.h Add av_rescale_q_rnd() 2012-02-08 - 38d5533 - lavu 51.22.1 - pixdesc.h Add PIX_FMT_PSEUDOPAL flag. 2012-02-08 - 52f82a1 - lavc 54.01.0 Add avcodec_encode_video2() and deprecate avcodec_encode_video(). 2012-02-01 - 316fc74 - lavc 54.01.0 Add av_fast_padded_malloc() as alternative for av_realloc() when aligned memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE zero-padded bytes at the end. 2012-01-31 - dd6d3b0 - lavf 54.01.0 Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags(). 2012-01-31 - af08d9a - lavc 54.01.0 Add avcodec_is_open() function. 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h Add a new installed header libavutil/intfloat.h with int/float punning functions. 2012-01-25 - lavf 53.22.0 f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for muxers supporting it (av_write_frame makes sure it is called only for muxers with this flag). 2012-01-15 - lavc 53.34.0 New audio encoding API: b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio encoders. 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function. b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio(). Add AVCodec.encode2(). 2012-01-12 - 3167dc9 - lavfi 2.15.0 Add a new installed header -- libavfilter/version.h -- with version macros. 2011-01-03 - b73ec05 - lavu 51.21.0 Add av_popcount64 2011-12-25 - lavfi 2.14.0 e1d9dbf Add a new installed header - buffersrc.h It contains a new function av_buffersrc_buffer() that allows passing frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame() it allows for direct rendering. 1c9e340 Add avfilter_copy_frame_props() for copying properties from AVFrame to AVFilterBufferRef. 2011-12-25 - lavc 53.31.0 Add the following new fields to AVFrame: b58dbb5 sample_aspect_ratio 3a2ddf7 width, height 8a4a5f6 format 2011-12-18 - 8400b12 - lavc 53.28.1 Deprecate AVFrame.age. The field is unused. 2011-12-12 - 5266045 - lavf 53.17.0 Add avformat_close_input(). Deprecate av_close_input_file() and av_close_input_stream(). 2011-12-02 - 0eea212 - 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(). 2011-12-04 - 560f773 - 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_deinit() 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() 2011-09-03 - fb4ca26 - lavc 53.10.0 lavf 53.6.0 lsws 2.1.0 Add {avcodec,avformat,sws}_get_class(). 2011-09-03 - c11fb82 - lavu 51.10.0 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function. 2011-08-26 - lavu 51.9.0 - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek(). - add41de..abc78a5 Do not include intfloat_readwrite.h, mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h. 2011-08-16 - 48f9e45 - lavf 53.4.0 Add avformat_query_codec(). 2011-08-16 - bca06e7 - lavc 53.8.0 Add avcodec_get_type(). 2011-08-06 - 2f63440 - lavf 53.4.0 Add error_recognition to AVFormatContext. 2011-08-02 - 9d39cbf - lavc 53.7.1 Add AV_PKT_FLAG_CORRUPT AVPacket flag. 2011-07-10 - a67c061 - lavf 53.3.0 Add avformat_find_stream_info(), deprecate av_find_stream_info(). 2011-07-10 - 0b950fe - lavc 53.6.0 Add avcodec_open2(), deprecate avcodec_open(). Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and avcodec_alloc_context2(). 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(). 2011-06-08 - d9f80ea - lavu 51.5.0 - 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 51.4.0 - 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 51.3.0 - opt.h Add av_opt_free convenience function. 2011-05-28 - 0420bd7 - lavu 51.2.0 - 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 53.1.0 - avformat.h Add fps_probe_size to AVFormatContext. 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt Add request_sample_fmt field to AVCodecContext. 2011-05-10 - 188dea1 - lavc 53.3.0 - 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. 2011-04-26 - 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 2011-04-10 - lavu 50.40.0 - pixfmt.h Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats 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 66e5b1d deprecate url_feof 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 -> avio_w[b/l] put_buffer -> avio_write b7effd4 rename get_byte -> avio_r8, get_[b/l]e -> avio_r[b/l] 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. 2011-03-02 - 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. 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples. 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy() Add av_metadata_copy() in avformat.h. 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque Deprecate reordered_opaque in favor of pkt_pts/dts. 2011-01-07 - 1919fea - 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 - 393cbb9 - lavc 52.105.0 - pkt_pts Add pkt_pts to AVFrame. 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name() Add av_get_profile_name to libavcodec/avcodec.h. 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES Add AV_PERM_NEG_LINESIZES in avfilter.h. 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream() Add av_find_best_stream to libavformat/avformat.h. 2010-12-27 - 107a7e3 - lavf 52.90.0 Add AVFMT_NOSTREAMS flag for formats with no streams, like e.g. text metadata. 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h Add functions av_file_map() and av_file_unmap() in file.h. 2010-12-19 - 0bc55f5 - 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 - c61cdd0 - 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 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h. 2010-12-04 - bb4afa1 - 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 - 4da12e3 - lavcore 0.15.0 - av_image_alloc() Add av_image_alloc() to libavcore/imgutils.h. 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter() Add function avfilter_graph_create_filter() in avfiltergraph.h. 2010-11-25 - 4723bc2 - 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 - 176a615 - 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 - 6bfc268 - lavf 52.85.0 - avformat.h Add av_append_packet(). 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h Add av_grow_packet(). 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h Add av_parse_color() declared in libavcore/parseutils.h. 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size fields. 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h Make avfiltergraph.h public. 2010-11-13 - 4fcbb2a - 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 - d2af720 - 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 - 24de0ed - lavfi 1.59.0 - avfilter_free() Rename avfilter_destroy() to avfilter_free(). This change breaks libavfilter API/ABI. 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h Remove graphparser.h header, move AVFilterInOut and avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h. 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx. This change breaks libavfilter API. 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free() Rename avfilter_graph_destroy() to avfilter_graph_free(). This change breaks libavfilter API/ABI. 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc() Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h. 2010-11-02 - 6f84cd1 - 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 - d63e456 - 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 - 262d1c5 - lavcore 0.10.0 - samplefmt.h Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum SampleFormat. 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config() Add the function avfilter_graph_config() in avfiltergraph.h. 2010-10-15 - 03700d3 - 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 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base Add time_base field to AVFilterLink. 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string() Move av_set_options_string() from libavfilter/parseutils.h to libavutil/opt.h. 2010-09-27 - acc0490 - 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 - 372e288 - lavu 50.30.0 - av_get_token() Move av_get_token() from libavfilter/parseutils.h to libavutil/avstring.h. 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h Add the functions sws_alloc_context() and sws_init_context(). 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h Move libavcodec/opt.h to libavutil/opt.h. 2010-09-24 - 1c1c80f - 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 - f66eb58 - lavc 52.90.0 - av_opt_show2() Deprecate av_opt_show() in favor or av_opt_show2(). 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount() Add av_popcount() to libavutil/common.h. 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags() Add av_get_cpu_flags(). 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy() Add av_image_copy(). 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane() Add av_image_copy_plane(). 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h Adopt hierarchical scheme for the imgutils.h function names, deprecate the old names. 2010-09-04 - 7160bb7 - 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 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout() Add avcodec_get_channel_layout() in audioconvert.h. 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps() Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps(). 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep() Add av_fill_image_max_pixstep() in imgutils.h. 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE() Add the AV_NE macro. 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework Implement AVFilterBufferRefAudioProps struct for audio properties, get_audio_buffer(), filter_samples() functions and related changes. 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize() Add av_get_image_linesize() in imgutils.h. 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef Resize data and linesize arrays in AVFilterBufferRef to 8. This change breaks libavfilter API/ABI. 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy() Add av_picture_data_copy in avcodec.h. 2010-08-11 - 84c0386 - 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 - cc80caf - 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 - 5d4890d - 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 - 7fce481 - 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 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef Rename AVFilterPicRef to AVFilterBufferRef. 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer Move format field from AVFilterBuffer to AVFilterPicRef. 2010-08-06 - bf176f5 - 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 - 56b5e9d - 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 - e7bd48a - 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 - 126b638 - 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 - 4485247 - lavu 50.23.0 - mathematics.h Add the M_PHI constant definition. 2010-07-22 - bdab614 - 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 - aac6ca6 - lavcore 0.0.0 Add libavcore. 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer Remove w and h fields from AVFilterBuffer. 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer Rename AVFilterPic to AVFilterBuffer. 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip() Make url_fskip() return an int error code instead of void. 2010-07-11 - 23940f1 - lavc 52.83.0 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields. Add AVLPCType enum. Deprecate AVCodecContext.use_lpc. 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free() Add a function for free the contents of a AVSubtitle generated by avcodec_decode_subtitle. 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h Make the bswap.h and intreadwrite.h API public. 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h Rename read/write_line() to av_read/write_image_line(). 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props() Add avfilter_copy_picref_props(). 2010-07-03 - 2d525ef - lavc 52.79.0 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL. 2010-07-02 - 89eec74 - 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 - a52e2c3 - 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 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class Add priv_data_size and priv_data_class to URLProtocol. 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect() Add url_alloc() and url_connect(). 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2() Add av_register_protocol2(), deprecating av_register_protocol(). 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod() Add av_compare_mod() to libavutil/mathematics.h. 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API Make the eval API public. 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE Add AV_BASE64_SIZE() macro. 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string() Add av_get_codec_tag_string(). 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24(). 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL Add CODEC_CAP_EXPERIMENTAL flag. NOTE: this was backported to 0.6 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed() Add av_get_random_seed(). 2010-05-18 - 796ac23 - 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 - b6bc205 - 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 - 8e2ee18 - 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 - 3dd6180 - lavf 52.61.0 - metadata API Add a flag for av_metadata_set2() to disable overwriting of existing tags. 2010-04-01 - 0fb49b5 - lavc 52.66.0 Add avcodec_get_edge_width(). 2010-03-31 - d103218 - lavc 52.65.0 Add avcodec_copy_context(). 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext() Make av_match_ext() public. 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType Move AVMediaType enum from libavcodec to libavutil. 2010-03-31 - 72415b2 - 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 - 8795823 - lavu 50.13.0 - av_strerror() Implement av_strerror(). 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init() Support DCT-I and DST-I. 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime Add AVFormatContext.start_time_realtime field. 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos Add AVFilterPicRef.pos field. 2010-03-13 - 60c144f - 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 - c709483 - lavc 52.56.0 - avfft.h Add public FFT interface. 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr() Add av_stristr(). 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate() Add av_tree_enumerate(). 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts() Add av_compare_ts(). 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients() Add sws_getCoefficients(). 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API Add a list of generic tag names, change 'author' -> 'artist', 'year' -> 'date'. 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt() Add av_get_pix_fmt(). 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale() Change constness attributes of sws_scale() parameters. 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links() Add a log_ctx parameter to avfilter_graph_config_links(). 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put() Add sws_isSupportedInput() and sws_isSupportedOutput() functions. 2010-01-06 - c1d662f - 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 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace() Add avfilter_add_colorspace(). 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext() Add av_match_ext(), it should be used in place of match_ext(). 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format() Add av_guess_format(), it should be used in place of guess_format(). 2009-12-13 - a181981 - lavf 52.43.0 - metadata API Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and AV_METADATA_DONT_STRDUP_VAL. 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API Add av_d2str(). 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream Add avg_frame_rate. 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next() Introduce the av_bmg_next() function. 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice() Add a slice_dir parameter to avfilter_draw_slice(). 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter Remove the next field from AVFilter, this is not anymore required. 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next() Introduce the avfilter_next() function. 2009-11-25 - 86a60fa - 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 - 74a0059 - lavu 50.5.0 - pixdesc.h API Make the pixdesc.h API public. 2009-10-27 - 243110f - 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 - cccd292 - lavfi 1.4.1 - AVFilter.description Add a description field to AVFilter. 2009-10-19 - 6b5dc05 - 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 - 0eb4ff9 - 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 - 46c40e4 - lavfi 0.5.1 - AVFilterPic Add w and h fields to AVFilterPic. 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size This is now an unsigned int instead of a signed int. 2009-06-19 - a4276ba - 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 - 8f3f2e0 - 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 - f988ce6 - 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 - ce1d9c8 - lavc 52.28.0 - av_free_packet() av_free_packet() is no longer an inline function. It is now exported. 2009-04-11 - 80d403f - 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 - 7a00bba - 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 - 7b09db3 - lavu 50.3.0 - av_fifo_space() Introduce the av_fifo_space() function. 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket Move AVPacket declaration from libavformat/avformat.h to libavcodec/avcodec.h. 2009-03-22 - 6e08ca9 - 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 - f82674e - 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 - ee6624e - 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 - 41dd680 - 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 - ec26457 - 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