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: 2011-06-19 - xxxxxxx - 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 - xxxxxxx - 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 - xxxxxxx - lavfi 2.21.0 - vsink_buffer.h Add video sink buffer and vsink_buffer.h public header. 2011-06-12 - xxxxxxx - lavfi 2.18.0 - avcodec.h Add avfilter_get_video_buffer_ref_from_frame() function in libavfilter/avcodec.h. 2011-06-12 - xxxxxxx - lavfi 2.17.0 - avfiltergraph.h Add avfilter_inout_alloc() and avfilter_inout_free() functions. 2011-06-12 - xxxxxxx - lavfi 2.16.0 - avfilter_graph_parse() Change avfilter_graph_parse() signature. 2011-06-xx - xxxxxxx - lavu 51.8.0 - attributes.h Add av_printf_format(). 2011-06-xx - xxxxxxx - 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-xx - xxxxxxx - 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-xx - xxxxxxx - 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-xx - 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 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. 2011-03-17 - 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