API changes, most recent first:
+2011-02-08 - xxxxxxx - 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 - 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.