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1 06d19718 Reimar Döffinger
Never assume the API of libav* to be stable unless at least 1 week has passed since
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the last major version increase.
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The last version increases were:
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libavcodec:  ?
5 a33e0365 Stefano Sabatini
libavcore:   2010-07-21
6 06d19718 Reimar Döffinger
libavdevice: ?
7 c3b27a3d Stefano Sabatini
libavfilter: 2009-10-18
8 06d19718 Reimar Döffinger
libavformat: ?
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libpostproc: ?
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libswscale:  ?
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libavutil:   2009-03-08
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13
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API changes, most recent first:
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16 15cae5e6 Stefano Sabatini
2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
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  Add av_get_cpu_flags().
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19 16bacad4 Stefano Sabatini
2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
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  Add av_image_copy().
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2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
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  Add av_image_copy_plane().
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25 1904035b Stefano Sabatini
2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
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  Adopt hierarchical scheme for the imgutils.h function names,
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  deprecate the old names.
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29 47806f41 Stefano Sabatini
2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
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  Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
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  of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
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33 798dc641 Stefano Sabatini
2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
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  Add avcodec_get_channel_layout() in audioconvert.h.
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36 26553088 Stefano Sabatini
2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
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  Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
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39 33d2e7b3 Stefano Sabatini
2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
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  Add av_fill_image_max_pixstep() in imgutils.h.
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42 7f38d28c Stefano Sabatini
2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
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  Add the AV_NE macro.
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45 3f52a907 Stefano Sabatini
2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
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  Implement AVFilterBufferRefAudioProps struct for audio properties,
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  get_audio_buffer(), filter_samples() functions and related changes.
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49 d1a04371 Stefano Sabatini
2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
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  Add av_get_image_linesize() in imgutils.h.
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52 5bf840c4 Stefano Sabatini
2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
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  Resize data and linesize arrays in AVFilterBufferRef to 8.
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55
  This change breaks libavfilter API/ABI.
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57 c6a34954 Stefano Sabatini
2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
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  Add av_picture_data_copy in avcodec.h.
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60 c7c7feaa Stefano Sabatini
2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
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  Change avfilter_open() signature:
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  AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
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  int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
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65
  This change breaks libavfilter API/ABI.
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67 ad0d70c9 Stefano Sabatini
2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
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  Add a type field to AVFilterBufferRef, and move video specific
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  properties to AVFilterBufferRefVideoProps.
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71 4bf2d6e8 Stefano Sabatini
  This change breaks libavfilter API/ABI.
72 ad0d70c9 Stefano Sabatini
73 711d14cf Stefano Sabatini
2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
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  Rename AVFilterLink fields:
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  AVFilterLink.srcpic    ->  AVFilterLink.src_buf
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  AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf
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  AVFilterLink.outpic    ->  AVFilterLink.out_buf
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2010-08-07 - r24731 - lavfi 1.30.0
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  Rename functions and fields:
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  avfilter_(un)ref_pic       -> avfilter_(un)ref_buffer
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  avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
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  AVFilterBufferRef.pic      -> AVFilterBufferRef.buffer
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2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
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  Rename AVFilterPicRef to AVFilterBufferRef.
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88 e11b104a Stefano Sabatini
2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
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  Move format field from AVFilterBuffer to AVFilterPicRef.
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91 71cb41db Stefano Sabatini
2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
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  Deprecate avcodec_check_dimensions() in favor of the function
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  av_check_image_size() defined in libavcore/imgutils.h.
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95 92dd4959 Stefano Sabatini
2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
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  Increase size of the arrays AVFilterBuffer.data and
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  AVFilterBuffer.linesize from 4 to 8.
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  This change breaks libavfilter ABI.
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101 3dec10cd Stefano Sabatini
2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
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  Add functions av_fill_image_linesizes() and
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  av_fill_image_pointers(), declared in libavcore/imgutils.h.
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105 fa8ead00 Stefano Sabatini
2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
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  Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
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  defined in libavcodec in favor of the newly added functions
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  av_parse_video_size() and av_parse_video_rate() declared in
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  libavcore/parseutils.h.
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111 c257c752 Stefano Sabatini
2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
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  Add the M_PHI constant definition.
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114 73642926 Stefano Sabatini
2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
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  Add a type field to AVFilterLink.
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  Change the field types:
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  enum PixelFormat format   -> int format   in AVFilterBuffer
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  enum PixelFormat *formats -> int *formats in AVFilterFormats
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  enum PixelFormat *format  -> int format   in AVFilterLink
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  Change the function signatures:
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  AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
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  AVFilterFormats *avfilter_make_format_list(const int *fmts);
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  int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
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  int avfilter_add_format    (AVFilterFormats **avff, int fmt);
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  AVFilterFormats *avfilter_all_colorspaces(void); ->
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  AVFilterFormats *avfilter_all_formats    (enum AVMediaType type);
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  This change breaks libavfilter API/ABI.
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134 a33e0365 Stefano Sabatini
2010-07-21 - r24393 - lavcore 0.0.0
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  Add libavcore.
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137 8e9d9308 Stefano Sabatini
2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
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  Remove w and h fields from AVFilterBuffer.
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140 9840147d Stefano Sabatini
2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
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  Rename AVFilterPic to AVFilterBuffer.
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143 57fe80fe Martin Storsjö
2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
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  Make url_fskip() return an int error code instead of void.
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146 37497979 Justin Ruggles
2010-07-11 - r24199 - lavc 52.83.0
147 6f5ac9c1 Justin Ruggles
  Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
148 23940f14 Justin Ruggles
  Add AVLPCType enum.
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  Deprecate AVCodecContext.use_lpc.
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151 e1d7c883 Reimar Döffinger
2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
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  Add a function for free the contents of a AVSubtitle generated by
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  avcodec_decode_subtitle.
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155 617d56ca Stefano Sabatini
2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
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  Make the bswap.h and intreadwrite.h API public.
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158 52706b95 Stefano Sabatini
2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
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  Rename read/write_line() to av_read/write_image_line().
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2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
162 16400da6 Stefano Sabatini
  Add avfilter_copy_picref_props().
163 52706b95 Stefano Sabatini
164 34171e87 Ramiro Polla
2010-07-03 - r24021 - lavc 52.79.0
165 16400da6 Stefano Sabatini
  Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
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  FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
167 34171e87 Ramiro Polla
168 13088d27 Ramiro Polla
2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
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  Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
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  lfg.h.
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172 6951515c Stefano Sabatini
2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
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  Extend av_parse_color() syntax, make it accept an alpha value specifier and
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  set the alpha value to 255 by default.
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176 58cc11c7 Martin Storsjö
2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
177 16400da6 Stefano Sabatini
  Add priv_data_size and priv_data_class to URLProtocol.
178 58cc11c7 Martin Storsjö
179 4636f115 Martin Storsjö
2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
180 16400da6 Stefano Sabatini
  Add url_alloc() and url_connect().
181 4636f115 Martin Storsjö
182 16400da6 Stefano Sabatini
2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
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  Add av_register_protocol2(), deprecating av_register_protocol().
184 6c4cbc8d Martin Storsjö
185 276b45af Stefano Sabatini
2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
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  Add av_compare_mod() to libavutil/mathematics.h.
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188 4cd5100c Stefano Sabatini
2010-06-05 - r23485 - lavu 50.18.0 - eval API
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  Make the eval API public.
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191 6532c6f9 Stefano Sabatini
2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
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  Add AV_BASE64_SIZE() macro.
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194 16400da6 Stefano Sabatini
2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
195 2a00992f Stefano Sabatini
  Add av_get_codec_tag_string().
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197 7f464a0a Reinhard Tartler
2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
198 16400da6 Stefano Sabatini
  Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
199 7f464a0a Reinhard Tartler
200 fe9c2007 Stefano Sabatini
2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
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  Add CODEC_CAP_EXPERIMENTAL flag.
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203 16400da6 Stefano Sabatini
2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
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  Add av_get_random_seed().
205 cca68a54 Martin Storsjö
206 b724102a Martin Storsjö
2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
207 16400da6 Stefano Sabatini
  Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
208 b724102a Martin Storsjö
209 fc25c049 Stefano Sabatini
2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
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  Add interlaced and top_field_first fields to AVFilterPicRef.
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212 d0eb2b78 Reimar Döffinger
2010-05-01 - r23002 - lavf 52.62.0 - probe function
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  Add av_probe_input_format2 to API, it allows ignoring probe
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  results below given score and returns the actual probe score.
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216 2100348c Ronald S. Bultje
2010-04-01 - r22806 - lavf 52.61.0 - metadata API
217 3dd6180f Anton Khirnov
  Add a flag for av_metadata_set2() to disable overwriting of
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  existing tags.
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220 0fb49b59 Bobby Bingham
2010-04-01 - r22753 - lavc 52.66.0
221 16400da6 Stefano Sabatini
  Add avcodec_get_edge_width().
222 0fb49b59 Bobby Bingham
223 c846a984 Ronald S. Bultje
2010-03-31 - r22750 - lavc 52.65.0
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  Add avcodec_copy_context().
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226 e33f1fa0 Stefano Sabatini
2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
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  Make av_match_ext() public.
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229 fc8b1075 Stefano Sabatini
2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
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  Move AVMediaType enum from libavcodec to libavutil.
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2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
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  Define AVMediaType enum, and use it instead of enum CodecType, which
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  is deprecated and will be dropped at the next major bump.
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236 82ba847e Stefano Sabatini
2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
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  Implement av_strerror().
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239 69087742 Vitor Sessak
2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
240 16400da6 Stefano Sabatini
  Support DCT-I and DST-I.
241 e1484ebe Vitor Sessak
242 a5b3d34b Martin Storsjö
2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
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  Add AVFormatContext.start_time_realtime field.
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245 8955a324 Stefano Sabatini
2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
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  Add AVFilterPicRef.pos field.
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248 99de2b59 Stefano Sabatini
2010-03-13 - r22501 - lavu 50.12.0 - error.h
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  Move error code definitions from libavcodec/avcodec.h to
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  the new public header libavutil/error.h.
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252 c7094831 Måns Rullgård
2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
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  Add public FFT interface.
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255 c18fb631 Stefano Sabatini
2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
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  Add av_stristr().
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258 4b83fc0f Vitor Sessak
2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
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  Add av_tree_enumerate().
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261 fbef7a76 Stefano Sabatini
2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
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  Add av_compare_ts().
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264 e49407ee Stefano Sabatini
2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
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  Add sws_getCoefficients().
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267 ca76a119 Anton Khirnov
2010-02-01 - r21587 - lavf 52.50.0 - metadata API
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  Add a list of generic tag names, change 'author' -> 'artist',
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  'year' -> 'date'.
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271 14ace37e Stefano Sabatini
2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
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  Add av_get_pix_fmt().
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274 16400da6 Stefano Sabatini
2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
275 e49407ee Stefano Sabatini
  Change constness attributes of sws_scale() parameters.
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277 2d187e23 Stefano Sabatini
2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
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  Add a log_ctx parameter to avfilter_graph_config_links().
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280 16400da6 Stefano Sabatini
2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
281 1c790092 Stefano Sabatini
  Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
282 715cff9a Stefano Sabatini
283 1e289b09 Stefano Sabatini
2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
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  Change the avfilter_add_colorspace() signature, make it accept an
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  (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
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287 a2b16627 Stefano Sabatini
2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
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  Add avfilter_add_colorspace().
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290 79c2f2d3 Stefano Sabatini
2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
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  Add av_match_ext(), it should be used in place of match_ext().
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293 bb1a8793 Stefano Sabatini
2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
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  Add av_guess_format(), it should be used in place of guess_format().
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296 b8f11ec8 Michael Niedermayer
2009-12-13 - r20834 - lavf 52.43.0 - metadata API
297 16400da6 Stefano Sabatini
  Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
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  AV_METADATA_DONT_STRDUP_VAL.
299 b8f11ec8 Michael Niedermayer
300 60a92a77 Michael Niedermayer
2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
301 f69d394f Stefano Sabatini
  Add av_d2str().
302 60a92a77 Michael Niedermayer
303 c3d15329 Michael Niedermayer
2009-12-13 - r20826 - lavc 52.42.0 - AVStream
304 f69d394f Stefano Sabatini
  Add avg_frame_rate.
305 c3d15329 Michael Niedermayer
306 54c24216 Stefano Sabatini
2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
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  Introduce the av_bmg_next() function.
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309 11f6d098 Stefano Sabatini
2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
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  Add a slice_dir parameter to avfilter_draw_slice().
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312 7cab9a66 Stefano Sabatini
2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
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  Remove the next field from AVFilter, this is not anymore required.
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315 b5a683eb Stefano Sabatini
2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
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  Introduce the avfilter_next() function.
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318 73e2247d Stefano Sabatini
2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
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  Change the signature of avfilter_register() to make it return an
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  int. This is required since now the registration operation may fail.
321
322 d0df2fcc Stefano Sabatini
2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
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  Make the pixdesc.h API public.
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325 290d4a44 Stefano Sabatini
2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
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  Add a next field to AVFilter, this is used for simplifying the
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  registration and management of the registered filters.
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329 54116673 Stefano Sabatini
2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
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  Add a description field to AVFilter.
331 01537e9f Stefano Sabatini
332 027e85d8 Stefano Sabatini
2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
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  Change the interface of avfilter_make_format_list() from
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  avfilter_make_format_list(int n, ...) to
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  avfilter_make_format_list(enum PixelFormat *pix_fmts).
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337 c3b27a3d Stefano Sabatini
2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
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  Make avfilter_get_video_buffer() recursive and add the w and h
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  parameters to it.
340
341 04670366 Stefano Sabatini
2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
342 227d1b98 Diego Biurrun
  Add w and h fields to AVFilterPic.
343 04670366 Stefano Sabatini
344 b394438e Ronald S. Bultje
2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
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  This is now an unsigned int instead of a signed int.
346
347 4bbe788a Reimar Döffinger
2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
348 227d1b98 Diego Biurrun
  Add a pts field to AVSubtitle which gives the subtitle packet pts
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  in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
350 4bbe788a Reimar Döffinger
  not work right without this.
351
352 8f3f2e06 Reimar Döffinger
2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
353 227d1b98 Diego Biurrun
  PKT_FLAG_KEY has been deprecated and will be dropped at the next
354 8f3f2e06 Reimar Döffinger
  major version. Use AV_PKT_FLAG_KEY instead.
355
356 f988ce6c Andreas Öman
2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
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  av_lockmgr_register() can be used to register a callback function
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  that lavc (and in the future, libraries that depend on lavc) can use
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  to implement mutexes. The application should provide a callback function
360 227d1b98 Diego Biurrun
  that implements the AV_LOCK_* operations described in avcodec.h.
361
  When the lock manager is registered, FFmpeg is guaranteed to behave
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  correctly in a multi-threaded application.
363 f988ce6c Andreas Öman
364 16400da6 Stefano Sabatini
2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
365 52bcc8e1 Ramiro Polla
  av_free_packet() is no longer an inline function. It is now exported.
366
367 16400da6 Stefano Sabatini
2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
368 0c13bbf5 Reimar Döffinger
  Please use NULL instead. This has been supported since r16506
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  (lavf > 52.23.1, lavc > 52.10.0).
370
371 2851d225 Ronald S. Bultje
2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
372
  The old decoding functions are deprecated, all new code should use the
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  new functions avcodec_decode_video2(), avcodec_decode_audio3() and
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  avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
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  argument instead of a const uint8_t *buf / int buf_size pair.
376
377 16400da6 Stefano Sabatini
2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
378 b1516707 Stefano Sabatini
  Introduce the av_fifo_space() function.
379
380 dd3bbb49 Stefano Sabatini
2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
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  Move AVPacket declaration from libavformat/avformat.h to
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  libavcodec/avcodec.h.
383
384 5a43bbc3 Stefano Sabatini
2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
385 227d1b98 Diego Biurrun
  Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
386
  PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
387
  Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
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  PIX_FMT_BGR32_1 are now macros.
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  avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
390 f3370e14 Stefano Sabatini
  Re-sort the enum PixelFormat list accordingly.
391 5a43bbc3 Stefano Sabatini
  This change breaks API/ABI backward compatibility.
392
393 dd3bbb49 Stefano Sabatini
2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
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  Add the enum PixelFormat values:
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  PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
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  PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
397
398 b4656e6b Stefano Sabatini
2009-03-21 - r18116 - lavu 50.0.0  - av_random*
399 c8f742ca Diego Biurrun
  The Mersenne Twister PRNG implemented through the av_random* functions
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  was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
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  instead.
402
403 889cdae8 Diego Biurrun
2009-03-08 - r17869 - lavu 50.0.0  - AVFifoBuffer
404
  av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
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  and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
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  and av_fifo_realloc2.
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  In addition, the order of the function arguments of av_fifo_generic_read
408 227d1b98 Diego Biurrun
  was changed to match av_fifo_generic_write.
409 889cdae8 Diego Biurrun
  The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
410
  applications, they may not use sizeof() or directly access members.
411 22d4f236 Reimar Döffinger
412 889cdae8 Diego Biurrun
2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
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  Introduce a new metadata API (see av_metadata_get() and friends).
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  The old API is now deprecated and should not be used anymore. This especially
415 429d6b21 Panagiotis Issaris
  includes the following structure fields:
416 38ce707e Aurelien Jacobs
    - AVFormatContext.title
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    - AVFormatContext.author
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    - AVFormatContext.copyright
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    - AVFormatContext.comment
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    - AVFormatContext.album
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    - AVFormatContext.year
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    - AVFormatContext.track
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    - AVFormatContext.genre
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    - AVStream.language
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    - AVStream.filename
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    - AVProgram.provider_name
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    - AVProgram.name
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    - AVChapter.title