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Diego Biurrun
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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: 2013-03-xx
libavdevice: 2013-03-xx
libavfilter: 2013-12-xx
libavformat: 2013-03-xx
libavutil: 2013-12-xx
API changes, most recent first:
2014-04-xx - xxxxxxx - lavc 55.50.1 - avcodec.h
Deprecate CODEC_FLAG_NORMALIZE_AQP. It is replaced by the flag "naq" in the
"mpv_flags" private option of the mpegvideo encoders.
2014-04-xx - xxxxxxx - avcodec.h
Deprecate CODEC_FLAG_INPUT_PRESERVED. Its functionality is replaced by passing
reference-counted frames to encoders.
2014-04-xx - xxxxxxx - lavc 55.50.0 - dxva2.h
Add FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO for old Intel GPUs.
2014-04-xx - xxxxxxx - lavu 53.13.0 - avutil.h
Add av_get_time_base_q().
2014-04-xx - xxxxxxx - lavu 53.12.0 - crc.h
Add AV_CRC_16_ANSI_LE crc variant.
2014-04-xx - xxxxxxx - lavu 53.11.0 - pixfmt.h
Add AV_PIX_FMT_YVYU422 pixel format.
2014-04-xx - xxxxxxx - lavu 53.10.0 - replaygain.h
Full scale for peak values is now 100000 (instead of UINT32_MAX) and values
may overflow.
2014-04-xx - xxxxxxx - lavu 53.09.0 - log.h
Add AV_LOG(c) macro to have 256 color debug messages.
2014-02-xx - xxxxxxx - lavu 53.08.0 - frame.h
Add av_frame_remove_side_data() for removing a single side data
instance from a frame.
2014-02-xx - xxxxxxx - lavu 53.07.0 - frame.h, replaygain.h
Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
Add a new header replaygain.h with the AVReplayGain struct.
2014-02-xx - xxxxxxx - lavc 55.36.0 - avcodec.h
Add AV_PKT_DATA_REPLAYGAIN for exporting replaygain tags.
2014-02-xx - xxxxxxx - lavf 55.13.0 - avformat.h
Add AVStream.side_data and AVStream.nb_side_data for exporting stream-global
side data (e.g. replaygain tags, video rotation)
2014-02-xx - xxxxxxx - lavc 55.35.0 - avcodec.h
Give the name AVPacketSideData to the previously anonymous struct used for
AVPacket.side_data.
2014-xx-xx - xxxxxxx - lavu 53.06.0 - pixfmt.h
Add RGBA64 pixel format and variants.
2014-xx-xx - xxxxxxx - lavu 53.05.0 - frame.h
Add av_frame_copy() for copying the frame data.
2014-02-xx - xxxxxxx - lavr 1.2.0 - avresample.h
Add avresample_is_open() for checking whether a resample context is open.
2014-xx-xx - xxxxxxx - lavu 53.04.0 - opt.h
Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
for reading.
2014-xx-xx - xxxxxxx - lavu 53.03.01 - opt.h
Deprecate unused AV_OPT_FLAG_METADATA.
2014-02-xx - xxxxxxx - lavu 53.3.0 - frame.h
Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
downmix_info.h API, which identify downmix-related metadata.
2014-02-04 - d9ae103 - lavf 55.11.0 - avformat.h
Add AVFormatContext.max_interleave_delta for controlling amount of buffering
when interleaving.
2014-01-20 - 93c553c - lavc 55.32.1 - avcodec.h
Edges are not required anymore on video buffers allocated by get_buffer2()
(i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
2014-01-05 - 5b4797a - lavu 53.2.0 - frame.h
Add AV_FRAME_DATA_MATRIXENCODING value to the AVFrameSideDataType enum, which
identifies AVMatrixEncoding data.
2014-01-05 - 5c437fb - lavu 53.1.0 - channel_layout.h
Add values for various Dolby flags to the AVMatrixEncoding enum.
2013-12-20 - 2a41826 - lavc 55.30.0 - avcodec.h
2013-12-11 - b9fb59d,9431356,d7b3ee9 - lavc 55.28.1 - avcodec.h
av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
avcodec_free_frame() respectively. The latter three functions are deprecated.
2013-12-09 - 7e244c6- - lavu 52.20.0 - frame.h
Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
stereo3d.h API, that identify codec-independent stereo3d information.
2013-11-26 - 1eaac1d- - lavu 52.19.0 - frame.h
Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
identifies ATSC A53 Part 4 Closed Captions data.
2013-11-14 - cce3e0a - lavu 52.18.0 - mem.h
Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
2013-11-14 - 8941971 - lavc 55.27.0 - avcodec.h
Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
private option of the mpegvideo encoder family.
2013-11-14 - 728c465 - lavc 55.26.0 - vdpau.h
Add av_vdpau_get_profile().
Add av_vdpau_alloc_context(). This function must from now on be
used for allocating AVVDPAUContext.
2013-11-04 - cd8f772 - lavc 55.25.0 - avcodec.h
Add ITU-R BT.2020 and other not yet included values to color primaries,
transfer characteristics and colorspaces.
2013-10-31 - 28096e0 - lavu 52.17.0 - frame.h
Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
2013-09-28 - 0767bfd - lavfi 3.11.0 - avfilter.h
Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
implementations.
2013-09-21 - e208e6d - lavu 52.16.0 - pixfmt.h
Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
AV_PIX_FMT_NV20.
2013-09-16 - 3feb3d6 - lavu 52.15.0 - mem.h
2013-08-10 - 5a9a9d4 - lavc 55.16.0 - avcodec.h
Extend AVPacket API with av_packet_unref, av_packet_ref,
av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
2013-08-05 - f824535 - lavc 55.13.0 - avcodec.h
Deprecate the bitstream-related members from struct AVVDPAUContext.
The bistream buffers no longer need to be explicitly freed.
2013-08-05 - 549294f - lavc 55.12.0 - avcodec.h
Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
and select the AV_PIX_FMT_VDPAU format with get_format() instead.
2013-08-05 - a0ad5d0 - lavu 52.14.0 - pixfmt.h
Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
2013-08-02 - a8b1927 - lavc 55.11.0 - avcodec.h
Add output_picture_number to AVCodecParserContext.
2013-06-24 - 95d5246 - lavc 55.10.0 - avcodec.h
Add MPEG-2 AAC profiles
2013-06-04 - fc962d4 - lavu 52.13.0 - mem.h
Add av_realloc_array and av_reallocp_array
2013-05-24 - 129bb23 - lavfi 3.10.0 - avfilter.h
Add support for slice multithreading to lavfi. Filters supporting threading
are marked with AVFILTER_FLAG_SLICE_THREADS.
New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
used to configure multithreading.
2013-05-24 - 2a6eaea - lavu 52.12.0 - cpu.h
Add av_cpu_count() function for getting the number of logical CPUs.
2013-05-24 - b493847 - lavc 55.7.0 - avcodec.h
Add picture_structure to AVCodecParserContext.
2013-05-15 - e6c4ac7 - lavu 52.11.0 - pixdesc.h
Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
2013-04-03 - 507b1e4 - lavc 55.4.0 - avcodec.h
Add field_order to AVCodecParserContext.
2013-04-19 - 5e83d9a - lavc 55.2.0 - avcodec.h
Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
2013-04-11 - lavfi 3.8.0
38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
avfilterhraph.h, user applications should include just avfilter.h
bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
avfilter_graph_add_filter().
1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
filter.
48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
1ba95a9 - Add avfilter_init_dict().
7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
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