Changelog 34.4 KB
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Entries are sorted chronologically from oldest to youngest within each release,
releases are sorted from youngest to oldest.

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version <next>:
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- libx265 encoder
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- shuffleplanes filter
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- replaygain data export
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- Alias PIX image encoder and decoder
Aleksi Nurmi's avatar
Aleksi Nurmi committed
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- BRender PIX image decoder
Paul B Mahol's avatar
Paul B Mahol committed
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- Amazing Studio PAF playback support
Vittorio Giovara's avatar
Vittorio Giovara committed
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- XBM decoder
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- bmp standalone parser
Jimmy Christensen's avatar
Jimmy Christensen committed
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- OpenEXR image decoder
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- support encoding and decoding 4-channel SGI images
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- support decoding 16-bit RLE SGI images
Peter Ross's avatar
Peter Ross committed
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- VP7 video decoder
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- LucasArts SMUSH SANM video decoder
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- LucasArts SMUSH VIMA audio decoder (ADPCM)
Paul B Mahol's avatar
Paul B Mahol committed
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- LucasArts SMUSH demuxer
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- MP2 encoding via TwoLAME
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- asettb filter
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- Silicon Graphics RLE 8-bit video decoder
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- Silicon Graphics Motion Video Compressor 1 & 2 decoder
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- Silicon Graphics Movie demuxer
Kostya Shishkov's avatar
Kostya Shishkov committed
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- On2 AVC (Audio for Video) decoder
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- support for decoding through DXVA2 in avconv
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version 10:
- av_strnstr
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- support ID3v2 tags in ASF files
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- reference-counting for AVFrame and AVPacket data
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- avconv now fails when input options are used for output file
  or vice versa
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- avconv options -filter_script and -filter_complex_script, which allow a
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  filtergraph description to be read from a file
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- uniform options syntax across all filters
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- interlace filter
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- JPEG 2000 decoder
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- asetpts filter (same as setpts, but for audio)
- trim and atrim filters
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- avconv -t and -ss (output-only) options are now sample-accurate when
  transcoding audio
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- Matroska muxer can now put the index at the beginning of the file.
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- avconv -deinterlace option removed, the yadif filter should be used instead
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- Apple Intermediate Codec decoder
Eli Friedman's avatar
Eli Friedman committed
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- Escape 130 video decoder
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- support for slice multithreading in libavfilter
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- VC-1 interlaced B-frame support
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- support for WavPack muxing (raw and in Matroska)
Kostya Shishkov's avatar
Kostya Shishkov committed
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- Go2Webinar decoder
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- WavPack encoding through libwavpack
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- Added the -n parameter to avconv
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- RTMP seek support
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- when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
  even when used as an input option. Previous behavior can be restored with
  the -noaccurate_seek option.
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- avconv -t option can now be used for inputs, to limit the duration of
  data read from an input file
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- Voxware MetaSound decoder
Justin Ruggles's avatar
Justin Ruggles committed
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- WebP decoder
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- Error Resilient AAC syntax (ER AAC LC) decoding
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- Low Delay AAC (ER AAC LD) decoding
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- mux chapters in ASF files
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- Opus in Ogg demuxing
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- Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
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- F4V muxer
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- HNM version 4 demuxer and video decoder
Guillaume Martres's avatar
Guillaume Martres committed
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- HEVC decoder
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- raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
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- remove avplay -vismv option, which has not worked for a long time
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- Live HDS muxer
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- setsar/setdar filters now support variables in ratio expressions
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- dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
Ronald S. Bultje's avatar
Ronald S. Bultje committed
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- VP9 decoder
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- support for decoding through VDPAU in avconv (the -hwaccel option)
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- remove mp3_header_(de)compress bitstream filters
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- stereoscopic 3d metadata handling
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- png standalone parser
Justin Ruggles's avatar
Justin Ruggles committed
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- WebP encoding via libwebp
Maxim Polijakowski's avatar
Maxim Polijakowski committed
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- ATRAC3+ decoder
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- framepack filter
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- Mirillis FIC video decoder
Kostya Shishkov's avatar
Kostya Shishkov committed
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- Support DNx444
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- compand audio filter
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version 9:
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- av_basename and av_dirname
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- adobe and limelight publisher authentication in RTMP
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- VDPAU hardware acceleration through normal hwaccel
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- SRTP support
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version 9_beta3:
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- ashowinfo audio filter
- 24-bit FLAC encoding
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- audio volume filter
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- deprecated the avconv -vol option. the volume filter is to be used instead.
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- multi-channel ALAC encoding up to 7.1
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- TAK demuxer, parser, and decoder
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- adaptive frame-level multithreading for H.264
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version 9_beta2:
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- metadata (INFO tag) support in WAV muxer
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- support for building DLLs using MSVC
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- remove avserver daemon mode
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- support building on the Plan 9 operating system
- ffv1: support version 1.3
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Janne Grunau's avatar
Janne Grunau committed
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version 9_beta1:

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- XWD encoder and decoder
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- Support for fragmentation in the mov/mp4 muxer
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- ISMV (Smooth Streaming) muxer
Paul B Mahol's avatar
Paul B Mahol committed
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- CDXL demuxer and decoder
Kostya Shishkov's avatar
Kostya Shishkov committed
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- Apple ProRes encoder
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- Sun Rasterfile Encoder
Diego Biurrun's avatar
Diego Biurrun committed
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- remove libpostproc
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- ID3v2 attached pictures reading and writing
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- WMA Lossless decoder
Paul B Mahol's avatar
Paul B Mahol committed
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- XBM encoder
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- RealAudio Lossless decoder
Derek Buitenhuis's avatar
Derek Buitenhuis committed
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- ZeroCodec decoder
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- drop support for avconv without libavfilter
Justin Ruggles's avatar
Justin Ruggles committed
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- add libavresample audio conversion library
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- audio filters support in libavfilter and avconv
Anton Khirnov's avatar
Anton Khirnov committed
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- add fps filter
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- audio split filter
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- audio mix filter
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- avprobe output is now standard INI or JSON. The old format can still
  be used with -of old.
Kostya Shishkov's avatar
Kostya Shishkov committed
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- Indeo Audio decoder
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- channelsplit audio filter
Samuel Pitoiset's avatar
Samuel Pitoiset committed
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- RTMPT protocol support
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- iLBC encoding/decoding via libilbc
Kostya Shishkov's avatar
Kostya Shishkov committed
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- Microsoft Screen 1 decoder
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- join audio filter
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- audio channel mapping filter
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- Microsoft ATC Screen decoder
Jordi Ortiz's avatar
Jordi Ortiz committed
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- RTSP listen mode
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- TechSmith Screen Codec 2 decoder
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- AAC encoding via libfdk-aac
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- Microsoft Expression Encoder Screen decoder
Samuel Pitoiset's avatar
Samuel Pitoiset committed
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- RTMPS protocol support
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- RTMPTS protocol support
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- JPEG 2000 encoding support through OpenJPEG
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- G.723.1 demuxer and decoder
Samuel Pitoiset's avatar
Samuel Pitoiset committed
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- RTMPE protocol support
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- RTMPTE protocol support
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- Canopus Lossless Codec decoder
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- avconv -shortest option is now per-output file,
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  -pass and -passlogfile are now per-output stream
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- Ut Video encoder
Alberto Delmás's avatar
Alberto Delmás committed
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- Microsoft Screen 2 decoder
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- RTP depacketization of JPEG
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- Smooth Streaming live segmenter muxer
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- RTP packetization of JPEG
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- Opus decoder and encoder using libopus
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- remove -same_quant, it hasn't worked for years
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- support for building with MSVC
Kostya Shishkov's avatar
Kostya Shishkov committed
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version 0.8:
Justin Ruggles's avatar
Justin Ruggles committed
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- GSM audio parser
Paul B Mahol's avatar
Paul B Mahol committed
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- SMJPEG muxer
Justin Ruggles's avatar
Justin Ruggles committed
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version 0.8_beta2:
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- Automatic thread count based on detection number of (available) CPU cores
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- Deprecate libpostproc. If desired, the switch --enable-postproc will
  enable it but it may be removed in a later Libav release.
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- rv34: frame-level multi-threading
- optimized iMDCT transform on x86 using SSE for for mpegaudiodec
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version 0.8_beta1:

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- BWF muxer
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- Flash Screen Video 2 decoder
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- ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
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- ffmpeg deprecated, added avconv, which is almost the same for now, except
for a few incompatible changes in the options, which will hopefully make them
easier to use. The changes are:
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    * The options placement is now strictly enforced! While in theory the
      options for ffmpeg should be given in [input options] -i INPUT [output
      options] OUTPUT order, in practice it was possible to give output options
      before the -i and it mostly worked. Except when it didn't - the behavior was
      a bit inconsistent. In avconv, it is not possible to mix input and output
      options. All non-global options are reset after an input or output filename.
    * All per-file options are now truly per-file - they apply only to the next
      input or output file and specifying different values for different files
      will now work properly (notably -ss and -t options).
    * All per-stream options are now truly per-stream - it is possible to
      specify which stream(s) should a given option apply to. See the Stream
      specifiers section in the avconv manual for details.
    * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
      sense that they're specified after the output filename instead of before,
      like all other options. In avconv this irregularity is removed, all options
      apply to the next input or output file.
    * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
      irregular and highly confusing, they were also redundant. In avconv the -map
      option will create new streams in the output file and map input streams to
      them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
      each stream in the first input file.
    * The -map option now has slightly different and more powerful syntax:
        + Colons (':') are used to separate file index/stream type/stream index
          instead of dots. Comma (',') is used to separate the sync stream instead
          of colon.. This is done for consistency with other options.
        + It's possible to specify stream type. E.g. -map 0:a:2 creates an
          output stream from the third input audio stream.
        + Omitting the stream index now maps all the streams of the given type,
          not just the first. E.g. -map 0:s creates output streams for all the
          subtitle streams in the first input file.
        + Since -map can now match multiple streams, negative mappings were
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          introduced. Negative mappings disable some streams from an already
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          defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
          all the stream in the first input file, except for the second audio
          stream'.
    * There is a new option -c (or -codec) for choosing the decoder/encoder to
      use, which allows to precisely specify target stream(s) consistently with
      other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
      libvorbis sets the codec for the first audio stream and -c copy copies all
      the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
      aliases to -c:v/a/s
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    * It is now possible to precisely specify which stream should an AVOption
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      apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
      -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
      syntax is deprecated and will stop working soon.
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    * -map_chapters now takes only an input file index and applies to the next
      output file. This is consistent with how all the other options work.
    * -map_metadata now takes only an input metadata specifier and applies to
      the next output file. Output metadata specifier is now part of the option
      name, similarly to the AVOptions/map/codec feature above.
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    * -metadata can now be used to set metadata on streams and chapters, e.g.
      -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
      This made -vlang/-alang/-slang options redundant, so they were removed.
    * -qscale option now uses stream specifiers and applies to all streams, not
      just video. I.e. plain -qscale number would now apply to all streams. To get
      the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
      and -aq is now an alias for -q:a.
    * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
      uses stream specifiers. Use -bsf:v/a/s instead of the old options.
    * -itsscale option now uses stream specifiers, so its argument is only the
      scale parameter.
    * -intra option was removed, use -g 0 for the same effect.
    * -psnr option was removed, use -flags +psnr for the same effect.
    * -vf option is now an alias to the new -filter option, which uses stream specifiers.
    * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
    * -vtag/-atag/-stag options are now aliases to the new -tag option.
Sven Hesse's avatar
Sven Hesse committed
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- XMV demuxer
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- Windows Media Image decoder
Janne Grunau's avatar
Janne Grunau committed
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- LATM muxer/demuxer
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- showinfo filter
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- split filter
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- libcdio-paranoia input device for audio CD grabbing
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- select filter
Maxim Poliakovski's avatar
Maxim Poliakovski committed
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- Apple ProRes decoder
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- CELT in Ogg demuxing
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- VC-1 interlaced decoding
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- lut, lutrgb, and lutyuv filters
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- boxblur filter
Kostya Shishkov's avatar
Kostya Shishkov committed
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- Ut Video decoder
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- Speex encoding via libspeex
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- 4:2:2 H.264 decoding support
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- 4:2:2 and 4:4:4 H.264 encoding with libx264
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- Pulseaudio input device
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- replacement Indeo 3 decoder
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- TLS/SSL and HTTPS protocol support
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- AVOptions API rewritten and documented
- most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
  AVCodecContext deprecated. Codec private options should be used instead.
- Properly working defaults in libx264 wrapper, support for native presets.
- Encrypted OMA files support
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- Discworld II BMV decoding support
Derek Buitenhuis's avatar
Derek Buitenhuis committed
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- VBLE Decoder
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- OS X Video Decoder Acceleration (VDA) support
Justin Ruggles's avatar
Justin Ruggles committed
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- CRI ADX audio format muxer and demuxer
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- Playstation Portable PMP format demuxer
David Goldwich's avatar
David Goldwich committed
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- PCM format support in OMA demuxer
Paul B Mahol's avatar
Paul B Mahol committed
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- CLJR encoder
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- Dxtory capture format decoder
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- v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
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- OpenMG Audio muxer
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- Simple segmenting muxer
Reinhard Tartler's avatar
Reinhard Tartler committed
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- Indeo 4 decoder
- SMJPEG demuxer
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version 0.7:
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- E-AC-3 audio encoder
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- ac3enc: add channel coupling support
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- floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
- H.264/MPEG frame-level multithreading
- av_metadata_* functions renamed to av_dict_* and moved to libavutil
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- 4:4:4 H.264 decoding support
- 10-bit H.264 optimizations for x86
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- bump libswscale for recently reported ABI break
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version 0.7_beta2:

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- VP8 frame-level multithreading
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- NEON optimizations for VP8
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- removed a lot of deprecated API cruft
- FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
Peter Ross's avatar
Peter Ross committed
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- DPX image encoder
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- SMPTE 302M AES3 audio decoder
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- ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
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- 9bit and 10bit per sample support in the H.264 decoder
Peter Ross's avatar
Peter Ross committed
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version 0.7_beta1:

James Zern's avatar
James Zern committed
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- WebM support in Matroska de/muxer
Diego Biurrun's avatar
Diego Biurrun committed
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- low overhead Ogg muxing
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- MMS-TCP support
James Zern's avatar
James Zern committed
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- VP8 de/encoding via libvpx
David Conrad's avatar
David Conrad committed
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- Demuxer for On2's IVF format
Peter Ross's avatar
Peter Ross committed
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- Pictor/PC Paint decoder
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- HE-AAC v2 decoder
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- libfaad2 wrapper removed
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- DTS-ES extension (XCh) decoding support
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- native VP8 decoder
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- RTSP tunneling over HTTP
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- RTP depacketization of SVQ3
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- -strict inofficial replaced by -strict unofficial
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- ffplay -exitonkeydown and -exitonmousedown options added
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- native GSM / GSM MS decoder
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- RTP depacketization of QDM2
Peter Ross's avatar
Peter Ross committed
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- ANSI/ASCII art playback system
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- Lego Mindstorms RSO de/muxer
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- SubRip subtitle file muxer and demuxer
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- Chinese AVS encoding via libxavs
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- ffprobe -show_packets option added
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- RTP packetization of Theora and Vorbis
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- RTP depacketization of MP4A-LATM
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- RTP packetization and depacketization of VP8
Stefano Sabatini's avatar
Stefano Sabatini committed
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- hflip filter
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- Apple HTTP Live Streaming demuxer
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- a64 codec
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- MMS-HTTP support
Martin Storsjö's avatar
Martin Storsjö committed
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- G.722 ADPCM audio encoder/decoder
Zhou Zongyi's avatar
Zhou Zongyi committed
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- R10k video decoder
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- ocv_smooth filter
Stefano Sabatini's avatar
Stefano Sabatini committed
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- frei0r wrapper filter
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- change crop filter syntax to width:height:x:y
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- make the crop filter accept parametric expressions
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- make ffprobe accept AVFormatContext options
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- yadif filter
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- blackframe filter
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- Demuxer for Leitch/Harris' VR native stream format (LXF)
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- RTP depacketization of the X-QT QuickTime format
Martin Storsjö's avatar
Martin Storsjö committed
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- SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
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- cropdetect filter
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- ffmpeg -crop* options removed
Stefano Sabatini's avatar
Stefano Sabatini committed
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- transpose filter added
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- ffmpeg -force_key_frames option added
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- demuxer for receiving raw rtp:// URLs without an SDP description
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- single stream LATM/LOAS decoder
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- setpts filter added
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- Win64 support for optimized x86 assembly functions
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- MJPEG/AVI1 to JPEG/JFIF bitstream filter
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- ASS subtitle encoder and decoder
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- IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
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- overlay filter added
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- rename aspect filter to setdar, and pixelaspect to setsar
Anssi Hannula's avatar
Anssi Hannula committed
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- IEC 61937 demuxer
Anatoly Nenashev's avatar
Anatoly Nenashev committed
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- Mobotix .mxg demuxer
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- frei0r source added
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- hqdn3d filter added
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- RTP depacketization of QCELP
Michael Chinen's avatar
Michael Chinen committed
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- FLAC parser added
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- gradfun filter added
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- AMR-WB decoder
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- replace the ocv_smooth filter with a more generic ocv filter
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- Windows Televison (WTV) demuxer
Anton Khirnov's avatar
Anton Khirnov committed
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- FFmpeg metadata format muxer and demuxer
Aurelien Jacobs's avatar
Aurelien Jacobs committed
384
- SubRip (srt) subtitle decoder
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- floating-point AC-3 encoder added
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- Lagarith decoder
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- ffmpeg -copytb option added
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- IVF muxer added
Kostya Shishkov's avatar
Kostya Shishkov committed
389
- Wing Commander IV movies decoder added
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- movie source added
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- Bink version 'b' audio and video decoder
Peter Ross's avatar
Peter Ross committed
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- Bitmap Brothers JV playback system
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- Apple HTTP Live Streaming protocol handler
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- sndio support for playback and record
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- Linux framebuffer input device added
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- Chronomaster DFA decoder
anatoly's avatar
anatoly committed
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- Mobotix MxPEG decoder
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- AAC encoding via libvo-aacenc
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- AMR-WB encoding via libvo-amrwbenc
Max Horn's avatar
Max Horn committed
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- xWMA demuxer
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- fieldorder video filter added
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version 0.6:

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- PB-frame decoding for H.263
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- deprecated vhook subsystem removed
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- deprecated old scaler removed
Vitor Sessak's avatar
Vitor Sessak committed
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- VQF demuxer
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- Alpha channel scaler
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- PCX encoder
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- RTP packetization of H.263
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- RTP packetization of AMR
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- RTP depacketization of Vorbis
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- CorePNG decoding support
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- Cook multichannel decoding support
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- introduced avlanguage helpers in libavformat
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- 8088flex TMV demuxer and decoder
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- per-stream language-tags extraction in asfdec
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- V210 decoder and encoder
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- remaining GPL parts in AC-3 decoder converted to LGPL
Kenan Gillet's avatar
Kenan Gillet committed
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- QCP demuxer
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- SoX native format muxer and demuxer
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- AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
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- DPX image decoder
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- Electronic Arts Madcow decoder
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- DivX (XSUB) subtitle encoder
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- nonfree libamr support for AMR-NB/WB decoding/encoding removed
Diego Biurrun's avatar
Diego Biurrun committed
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- experimental AAC encoder
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- RTP depacketization of ASF and RTSP from WMS servers
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- RTMP support in libavformat
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- noX handling for OPT_BOOL X options
Daniel Verkamp's avatar
Daniel Verkamp committed
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- Wave64 demuxer
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- IEC-61937 compatible Muxer
Vitor Sessak's avatar
Vitor Sessak committed
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- TwinVQ decoder
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- Bluray (PGS) subtitle decoder
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- LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
Diego Biurrun's avatar
Diego Biurrun committed
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- WMA Pro decoder
Peter Ross's avatar
Peter Ross committed
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- Core Audio Format demuxer
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- ATRAC1 decoder
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- MD STUDIO audio demuxer
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- RF64 support in WAV demuxer
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- MPEG-4 Audio Lossless Coding (ALS) decoder
Daniel Verkamp's avatar
Daniel Verkamp committed
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- -formats option split into -formats, -codecs, -bsfs, and -protocols
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- IV8 demuxer
Michael Tison's avatar
Michael Tison committed
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- CDG demuxer and decoder
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- R210 decoder
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- Auravision Aura 1 and 2 decoders
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- Deluxe Paint Animation playback system
Vitor Sessak's avatar
Vitor Sessak committed
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- SIPR decoder
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- Adobe Filmstrip muxer and demuxer
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- RTP depacketization of H.263
Kostya Shishkov's avatar
Kostya Shishkov committed
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- Bink demuxer and audio/video decoders
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- enable symbol versioning by default for linkers that support it
Peter Ross's avatar
Peter Ross committed
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- IFF PBM/ILBM bitmap decoder
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- concat protocol
Kostya Shishkov's avatar
Kostya Shishkov committed
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- Indeo 5 decoder
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- RTP depacketization of AMR
Diego Biurrun's avatar
Diego Biurrun committed
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- WMA Voice decoder
- ffprobe tool
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- AMR-NB decoder
Martin Storsjö's avatar
Martin Storsjö committed
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- RTSP muxer
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- HE-AAC v1 decoder
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- Kega Game Video (KGV1) decoder
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- VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
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- RTP depacketization of Theora
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- HTTP Digest authentication
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- RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
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- Psygnosis YOP demuxer and video decoder
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- spectral extension support in the E-AC-3 decoder
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- unsharp video filter
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- RTP hinting in the mov/3gp/mp4 muxer
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- Dirac in Ogg demuxing
- seek to keyframes in Ogg
- 4:2:2 and 4:4:4 Theora decoding
- 35% faster VP3/Theora decoding
- faster AAC decoding
- faster H.264 decoding
479
- RealAudio 1.0 (14.4K) encoder
480

481

482 483
version 0.5:

484
- DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
485
- TechSmith Camtasia (TSCC) video decoder
486
- IBM Ultimotion (ULTI) video decoder
487 488
- Sierra Online audio file demuxer and decoder
- Apple QuickDraw (qdrw) video decoder
489
- Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
490
- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
491
- Miro VideoXL (VIXL) video decoder
Mike Melanson's avatar
Mike Melanson committed
492
- H.261 video encoder
493
- QPEG video decoder
Mike Melanson's avatar
Mike Melanson committed
494
- Nullsoft Video (NSV) file demuxer
495
- Shorten audio decoder
496
- LOCO video decoder
497
- Apple Lossless Audio Codec (ALAC) decoder
498
- Winnov WNV1 video decoder
499
- Autodesk Animator Studio Codec (AASC) decoder
Diego Biurrun's avatar
Diego Biurrun committed
500
- Indeo 2 video decoder
501
- Fraps FPS1 video decoder
Diego Biurrun's avatar
Diego Biurrun committed
502
- Snow video encoder/decoder
503
- Sonic audio encoder/decoder
504
- Vorbis audio decoder
505
- Macromedia ADPCM decoder
Diego Biurrun's avatar
Diego Biurrun committed
506 507
- Duck TrueMotion 2 video decoder
- support for decoding FLX and DTA extensions in FLIC files
508
- H.264 custom quantization matrices support
Diego Biurrun's avatar
Diego Biurrun committed
509
- ffserver fixed, it should now be usable again
Diego Biurrun's avatar
Diego Biurrun committed
510
- QDM2 audio decoder
511
- Real Cooker audio decoder
512
- TrueSpeech audio decoder
513 514
- WMA2 audio decoder fixed, now all files should play correctly
- RealAudio 14.4 and 28.8 decoders fixed
515
- JPEG-LS decoder
Diego Biurrun's avatar
Diego Biurrun committed
516 517
- build system improvements
- tabs and trailing whitespace removed from the codebase
518
- CamStudio video decoder
519
- AIFF/AIFF-C audio format, encoding and decoding
520
- ADTS AAC file reading and writing
521
- Creative VOC file reading and writing
522
- American Laser Games multimedia (*.mm) playback system
523
- Zip Motion Blocks Video decoder
524
- improved Theora/VP3 decoder
525
- True Audio (TTA) decoder
526
- AVS demuxer and video decoder
527
- JPEG-LS encoder
528
- Smacker demuxer and decoder
529
- NuppelVideo/MythTV demuxer and RTjpeg decoder
530
- KMVC decoder
531
- MPEG-2 intra VLC support
532
- MPEG-2 4:2:2 encoder
533
- Flash Screen Video decoder
Reimar Döffinger's avatar
Reimar Döffinger committed
534
- GXF demuxer
Diego Biurrun's avatar
Diego Biurrun committed
535
- Chinese AVS decoder
536
- GXF muxer
Baptiste Coudurier's avatar
Baptiste Coudurier committed
537
- MXF demuxer
Diego Biurrun's avatar
Diego Biurrun committed
538
- VC-1/WMV3/WMV9 video decoder
539
- MacIntel support
Diego Biurrun's avatar
Diego Biurrun committed
540
- AviSynth support
541
- VMware video decoder
542 543
- VP5 video decoder
- VP6 video decoder
544
- WavPack lossless audio decoder
Kostya Shishkov's avatar
Kostya Shishkov committed
545
- Targa (.TGA) picture decoder
546
- Vorbis audio encoder
547
- Delphine Software .cin demuxer/audio and video decoder
548
- Tiertex .seq demuxer/video decoder
549
- MTV demuxer
550
- TIFF picture encoder and decoder
551
- GIF picture decoder
552
- Intel Music Coder decoder
553
- Zip Motion Blocks Video encoder
554
- Musepack decoder
555
- Flash Screen Video encoder
556
- Theora encoding via libtheora
557
- BMP encoder
Diego Biurrun's avatar
Diego Biurrun committed
558
- WMA encoder
559
- GSM-MS encoder and decoder
Kostya Shishkov's avatar
Kostya Shishkov committed
560
- DCA decoder
561
- DXA demuxer and decoder
Baptiste Coudurier's avatar
Baptiste Coudurier committed
562
- DNxHD decoder
563
- Gamecube movie (.THP) playback system
564
- Blackfin optimizations
565
- Interplay C93 demuxer and video decoder
566
- Bethsoft VID demuxer and video decoder
Anssi Hannula's avatar
Anssi Hannula committed
567
- CRYO APC demuxer
568
- ATRAC3 decoder
569
- V.Flash PTX decoder
570
- RoQ muxer, RoQ audio encoder
571
- Renderware TXD demuxer and decoder
572
- extern C declarations for C++ removed from headers
573
- sws_flags command line option
574
- codebook generator
Vitor Sessak's avatar
Vitor Sessak committed
575
- RoQ video encoder
Alexis Ballier's avatar
Alexis Ballier committed
576
- QTRLE encoder
577
- OS/2 support removed and restored again
578
- AC-3 decoder
579
- NUT muxer
580
- additional SPARC (VIS) optimizations
David Conrad's avatar
David Conrad committed
581
- Matroska muxer
582
- slice-based parallel H.264 decoding
Kostya Shishkov's avatar
Kostya Shishkov committed
583
- Monkey's Audio demuxer and decoder
Vladimir Voroshilov's avatar
Vladimir Voroshilov committed
584
- AMV audio and video decoder
585
- DNxHD encoder
Carl Eugen Hoyos's avatar
Carl Eugen Hoyos committed
586
- H.264 PAFF decoding
587
- Nellymoser ASAO decoder
588
- Beam Software SIFF demuxer and decoder
589
- libvorbis Vorbis decoding removed in favor of native decoder
Diego Biurrun's avatar
Diego Biurrun committed
590
- IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
591
- Ogg (Theora, Vorbis and FLAC) muxer
592
- The "device" muxers and demuxers are now in a new libavdevice library
593 594
- PC Paintbrush PCX decoder
- Sun Rasterfile decoder
595
- TechnoTrend PVA demuxer
Ivo van Poorten's avatar
Ivo van Poorten committed
596
- Linux Media Labs MPEG-4 (LMLM4) demuxer
597
- AVM2 (Flash 9) SWF muxer
598
- QT variant of IMA ADPCM encoder
Ramiro Polla's avatar
Ramiro Polla committed
599
- VFW grabber
600
- iPod/iPhone compatible mp4 muxer
Ramiro Polla's avatar
Ramiro Polla committed
601
- Mimic decoder
602
- MSN TCP Webcam stream demuxer
Sascha Sommer's avatar
Sascha Sommer committed
603
- RL2 demuxer / decoder
604 605
- IFF demuxer
- 8SVX audio decoder
606
- non-recursive Makefiles
Sisir Koppaka's avatar
Sisir Koppaka committed
607
- BFI demuxer
608
- MAXIS EA XA (.xa) demuxer / decoder
Sisir Koppaka's avatar
Sisir Koppaka committed
609
- BFI video decoder
610
- OMA demuxer
Ramiro Polla's avatar
Ramiro Polla committed
611
- MLP/TrueHD decoder
612
- Electronic Arts CMV decoder
613 614
- Motion Pixels Video decoder
- Motion Pixels MVI demuxer
615
- removed animated GIF decoder/demuxer
Peter Ross's avatar
Peter Ross committed
616
- D-Cinema audio muxer
Peter Ross's avatar
Peter Ross committed
617
- Electronic Arts TGV decoder
618
- Apple Lossless Audio Codec (ALAC) encoder
619
- AAC decoder
620
- floating point PCM encoder/decoder
621
- MXF muxer
622
- DV100 AKA DVCPRO HD decoder and demuxer
623
- E-AC-3 support added to AC-3 decoder
624
- Nellymoser ASAO encoder
625
- ASS and SSA demuxer and muxer
626
- liba52 wrapper removed
627
- SVQ3 watermark decoding support
628
- Speex decoding via libspeex
629
- Electronic Arts TGQ decoder
630
- RV40 decoder
631
- QCELP / PureVoice decoder
632
- RV30 decoder
Ben Littler's avatar
Ben Littler committed
633
- hybrid WavPack support
Baptiste Coudurier's avatar
Baptiste Coudurier committed
634
- R3D REDCODE demuxer
635
- ALSA support for playback and record
Peter Ross's avatar
Peter Ross committed
636
- Electronic Arts TQI decoder
637
- OpenJPEG based JPEG 2000 decoder
638
- NC (NC4600) camera file demuxer
639
- Gopher client support
Baptiste Coudurier's avatar
Baptiste Coudurier committed
640
- MXF D-10 muxer
641 642
- generic metadata API

643

Michael Niedermayer's avatar
Michael Niedermayer committed
644 645
version 0.4.9-pre1:

646
- DV encoder, DV muxer
647 648
- Microsoft RLE video decoder
- Microsoft Video-1 decoder
649
- Apple Animation (RLE) decoder
Mike Melanson's avatar
Mike Melanson committed
650
- Apple Graphics (SMC) decoder
651 652 653
- Apple Video (RPZA) decoder
- Cinepak decoder
- Sega FILM (CPK) file demuxer
Mike Melanson's avatar
Mike Melanson committed
654
- Westwood multimedia support (VQA & AUD files)
655
- Id Quake II CIN playback support
Mike Melanson's avatar
Mike Melanson committed
656 657
- 8BPS video decoder
- FLIC playback support
658 659
- RealVideo 2.0 (RV20) decoder
- Duck TrueMotion v1 (DUCK) video decoder
Mike Melanson's avatar
Mike Melanson committed
660
- Sierra VMD demuxer and video decoder
Michael Niedermayer's avatar
Michael Niedermayer committed
661
- MSZH and ZLIB decoder support
662
- SVQ1 video encoder
Michael Niedermayer's avatar
Michael Niedermayer committed
663
- AMR-WB support
Diego Biurrun's avatar
Diego Biurrun committed
664
- PPC optimizations
Michael Niedermayer's avatar
Michael Niedermayer committed
665
- rate distortion optimal cbp support
Diego Biurrun's avatar
Diego Biurrun committed
666
- rate distorted optimal ac prediction for MPEG-4
Michael Niedermayer's avatar
Michael Niedermayer committed
667 668 669
- rate distorted optimal lambda->qp support
- AAC encoding with libfaac
- Sunplus JPEG codec (SP5X) support
Diego Biurrun's avatar
Diego Biurrun committed
670 671
- use Lagrange multipler instead of QP for ratecontrol
- Theora/VP3 decoding support
Michael Niedermayer's avatar
Michael Niedermayer committed
672
- XA and ADX ADPCM codecs
Diego Biurrun's avatar
Diego Biurrun committed
673
- export MPEG-2 active display area / pan scan
Michael Niedermayer's avatar
Michael Niedermayer committed
674 675
- Add support for configuring with IBM XLC
- floating point AAN DCT
Diego Biurrun's avatar
Diego Biurrun committed
676 677
- initial support for zygo video (not complete)
- RGB ffv1 support
Michael Niedermayer's avatar
Michael Niedermayer committed
678 679 680 681 682
- new audio/video parser API
- av_log() system
- av_read_frame() and av_seek_frame() support
- missing last frame fixes
- seek by mouse in ffplay
Diego Biurrun's avatar
Diego Biurrun committed
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- noise reduction of DCT coefficients
- H.263 OBMC & 4MV support
- H.263 alternative inter vlc support
- H.263 loop filter
- H.263 slice structured mode
- interlaced DCT support for MPEG-2 encoding
Michael Niedermayer's avatar
Michael Niedermayer committed
689
- stuffing to stay above min_bitrate
Diego Biurrun's avatar
Diego Biurrun committed
690
- MB type & QP visualization
Michael Niedermayer's avatar
Michael Niedermayer committed
691 692 693 694
- frame stepping for ffplay
- interlaced motion estimation
- alternate scantable support
- SVCD scan offset support
Diego Biurrun's avatar
Diego Biurrun committed
695 696
- closed GOP support
- SSE2 FDCT
Michael Niedermayer's avatar
Michael Niedermayer committed
697 698 699 700
- quantizer noise shaping
- G.726 ADPCM audio codec
- MS ADPCM encoding
- multithreaded/SMP motion estimation
Diego Biurrun's avatar
Diego Biurrun committed
701 702
- multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
- multithreaded/SMP decoding for MPEG-2
Michael Niedermayer's avatar
Michael Niedermayer committed
703 704
- FLAC decoder
- Metrowerks CodeWarrior suppport
Diego Biurrun's avatar
Diego Biurrun committed
705
- H.263+ custom pcf support
Michael Niedermayer's avatar
Michael Niedermayer committed
706
- nicer output for 'ffmpeg -formats'
Diego Biurrun's avatar
Diego Biurrun committed
707
- Matroska demuxer
Michael Niedermayer's avatar
Michael Niedermayer committed
708
- SGI image format, encoding and decoding
Diego Biurrun's avatar
Diego Biurrun committed
709 710
- H.264 loop filter support
- H.264 CABAC support
711
- nicer looking arrows for the motion vector visualization
Michael Niedermayer's avatar
Michael Niedermayer committed
712 713
- improved VCD support
- audio timestamp drift compensation
Diego Biurrun's avatar
Diego Biurrun committed
714
- MPEG-2 YUV 422/444 support
Michael Niedermayer's avatar
Michael Niedermayer committed
715 716
- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
- better image scaling
Diego Biurrun's avatar
Diego Biurrun committed
717
- H.261 support
Michael Niedermayer's avatar
Michael Niedermayer committed
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- correctly interleave packets during encoding
- VIS optimized motion compensation
Diego Biurrun's avatar
Diego Biurrun committed
720 721
- intra_dc_precision>0 encoding support
- support reuse of motion vectors/MB types/field select values of the source video
Michael Niedermayer's avatar
Michael Niedermayer committed
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- more accurate deblock filter
- padding support
- many optimizations and bugfixes
725
- FunCom ISS audio file demuxer and according ADPCM decoding
726

727

Fabrice Bellard's avatar
Fabrice Bellard committed
728 729
version 0.4.8:

Diego Biurrun's avatar
Diego Biurrun committed
730
- MPEG-2 video encoding (Michael)
Mike Melanson's avatar
Mike Melanson committed
731
- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
Mike Melanson's avatar
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732 733 734
- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
  and Mario Brito)
- Xan DPCM audio decoder (Mario Brito)
735
- Interplay MVE playback subsystem (Mike Melanson)
Mike Melanson's avatar
Mike Melanson committed
736 737
- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)

738

Mike Melanson's avatar
Mike Melanson committed
739
version 0.4.7:
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
740

Diego Biurrun's avatar
Diego Biurrun committed
741
- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
742
  (originally from public domain player for Amiga at http://www.honeypot.net/audio)
Diego Biurrun's avatar
Diego Biurrun committed
743
- current version now also compiles with older GCC (Fabrice)
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
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- 4X multimedia playback system including 4xm file demuxer (Mike
  Melanson), and 4X video and audio codecs (Michael)
- Creative YUV (CYUV) decoder (Mike Melanson)
- FFV1 codec (our very simple lossless intra only codec, compresses much better
Diego Biurrun's avatar
Diego Biurrun committed
748 749 750
  than HuffYUV) (Michael)
- ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
- tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
751 752
  alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
- ffplay has been replaced with a newer version which uses SDL (optionally)
Diego Biurrun's avatar
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753
  for multiplatform support (Fabrice)
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
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- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
  by anonymous
- AMR format has been added (Johannes Carlsson)
Diego Biurrun's avatar
Diego Biurrun committed
757
- 3GP support has been added (Johannes Carlsson)
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
758 759
- VP3 codec has been added (Mike Melanson)
- more MPEG-1/2 fixes
Diego Biurrun's avatar
Diego Biurrun committed
760 761
- better multiplatform support, MS Visual Studio fixes (various)
- AltiVec optimizations (Magnus Damn and others)
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
762
- SH4 processor support has been added (BERO)
Diego Biurrun's avatar
Diego Biurrun committed
763 764 765
- new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
- VOB streaming support (Brian Foley)
- better MP3 autodetection (Andriy Rysin)
Fabrice Bellard's avatar
Fabrice Bellard committed
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- qpel encoding (Michael)
- 4mv+b frames encoding finally fixed (Michael)
- chroma ME (Michael)
Diego Biurrun's avatar
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- 5 comparison functions for ME (Michael)
- B-frame encoding speedup (Michael)
- WMV2 codec (unfinished - Michael)
Fabrice Bellard's avatar
Fabrice Bellard committed
772
- user specified diamond size for EPZS (Michael)
Mike Melanson's avatar
Mike Melanson committed
773 774 775
- Playstation STR playback subsystem, still experimental (Mike and Michael)
- ASV2 codec (Michael)
- CLJR decoder (Alex)
Fabrice Bellard's avatar
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776

Diego Biurrun's avatar
Diego Biurrun committed
777
.. And lots more new enhancements and fixes.
Hetz Ben Hamo's avatar
Hetz Ben Hamo committed
778

779

Fabrice Bellard's avatar
Fabrice Bellard committed
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version 0.4.6:
Fabrice Bellard's avatar
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781

Diego Biurrun's avatar
Diego Biurrun committed
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- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
  from scratch
- Recoded DCT and motion vector search with gcc (no longer depends on nasm)
- fix quantization bug in AC3 encoder
- added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
- added prototype ffplay program
- added GOB header parsing on H.263/H.263+ decoder (Juanjo)
- bug fix on MCBPC tables of H.263 (Juanjo)
- bug fix on DC coefficients of H.263 (Juanjo)
- added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
- now we can decode H.263 streams found in QuickTime files (Juanjo)
- now we can decode H.263 streams found in VIVO v1 files(Juanjo)
794
- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
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- added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
- now H.263 picture size is returned on the first decoded frame (Juanjo)
Fabrice Bellard's avatar
Fabrice Bellard committed
797
- added first regression tests
Diego Biurrun's avatar
Diego Biurrun committed
798
- added MPEG-2 TS demuxer
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Fabrice Bellard committed
799
- new demux API for libav
800
- more accurate and faster IDCT (Michael)
Diego Biurrun's avatar
Diego Biurrun committed
801
- faster and entropy-controlled motion search (Michael)
802 803 804 805 806
- two pass video encoding (Michael)
- new video rate control (Michael)
- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
- great performance improvement of video encoders and decoders (Michael)
- new and faster bit readers and vlc parsers (Michael)
Diego Biurrun's avatar
Diego Biurrun committed
807
- high quality encoding mode: tries all macroblock/VLC types (Michael)
808 809
- added DV video decoder
- preliminary RTP/RTSP support in ffserver and libavformat
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- H.263+ AIC decoding/encoding support (Juanjo)
- VCD MPEG-PS mode (Juanjo)
- PSNR stuff (Juanjo)
- simple stats output (Juanjo)
- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
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version 0.4.5:

819 820
- some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
- many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
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- added configure system (actually a small shell script)
- added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
Fabrice Bellard's avatar
Fabrice Bellard committed
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  Michael Hipp (temporary solution - waiting for integer only
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  decoder)
- fixed VIDIOCSYNC interrupt
- added Intel H.263 decoding support ('I263' AVI fourCC)
- added Real Video 1.0 decoding (needs further testing)
Fabrice Bellard's avatar
Fabrice Bellard committed
828 829
- simplified image formats again. Added PGM format (=grey
  pgm). Renamed old PGM to PGMYUV.
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- fixed msmpeg4 slice issues (tell me if you still find problems)
- fixed OpenDivX bugs with newer versions (added VOL header decoding)
- added support for MPlayer interface
- added macroblock skip optimization
- added MJPEG decoder
- added mmx/mmxext IDCT from libmpeg2
Fabrice Bellard's avatar
Fabrice Bellard committed
836
- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
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  <celer at shell.scrypt.net>)
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- added pixel format conversion layer (e.g. for MJPEG or PPM)
- added deinterlacing option
- MPEG-1/2 fixes
841 842
- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
- ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
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- Windows porting of file converter
- added MJPEG raw format (input/ouput)
- added JPEG image format support (input/output)
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version 0.4.4:

- fixed some std header definitions (Bjorn Lindgren
851
  <bjorn.e.lindgren at telia.com>).
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- added MPEG demuxer (MPEG-1 and 2 compatible).
- added ASF demuxer
- added prototype RM demuxer
- added AC3 decoding (done with libac3 by Aaron Holtzman)
- added decoding codec parameter guessing (.e.g. for MPEG, because the
  header does not include them)
- fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
  play them (only tested video)
- fixed H.263 white bug
- fixed phase rounding in img resample filter
- add MMX code for polyphase img resample filter
- added CPU autodetection
- added generic title/author/copyright/comment string handling (ASF and RM
  use them)
Fabrice Bellard's avatar
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866
- added SWF demux to extract MP3 track (not usable yet because no MP3
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  decoder)
- added fractional frame rate support
Fabrice Bellard's avatar
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869
- codecs are no longer searched by read_header() (should fix ffserver
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  segfault)
Fabrice Bellard's avatar
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version 0.4.3:

875
- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
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- fixed raw yuv output
- added motion rounding support in MPEG-4
- fixed motion bug rounding in MSMPEG4
- added B-frame handling in video core
- added full MPEG-1 decoding support
- added partial (frame only) MPEG-2 support
Fabrice Bellard's avatar
Fabrice Bellard committed
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- changed the FOURCC code for H.263 to "U263" to be able to see the
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  +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
  this +codec ;) (JuanJo).
- Halfpel motion estimation after MB type selection (JuanJo)
- added pgm and .Y.U.V output format
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- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
  output.
- added pgmpipe I/O format (original patch from Martin Aumueller
890
  <lists at reserv.at>, but changed completely since we use a format
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  instead of a protocol)
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893

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version 0.4.2:

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- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
  (for OpenDivX) is almost complete: 8x8 MVs and rounding are
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  missing. MSMPEG4 support is complete.
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- added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
  can decode ffmpeg MPEGs :-)).
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- added libavcodec API documentation (see apiexample.c).
- fixed image polyphase bug (the bottom of some images could be
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  greenish)
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- added support for non clipped motion vectors (decoding only)
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  and image sizes non-multiple of 16
- added support for AC prediction (decoding only)
- added file overwrite confirmation (can be disabled with -y)
- added custom size picture to H.263 using H.263+ (Juanjo)
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version 0.4.1:

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- added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
  of AVI and ASF to DIV3.
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- added -me option to set motion estimation method
  (default=log). suppressed redundant -hq option.
- added options -acodec and -vcodec to force a given codec (useful for
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  AVI for example)
- fixed -an option
- improved dct_quantize speed
- factorized some motion estimation code
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version 0.4.0:

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- removing grab code from ffserver and moved it to ffmpeg. Added
  multistream support to ffmpeg.
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- added timeshifting support for live feeds (option ?date=xxx in the
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  URL)
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- added high quality image resize code with polyphase filter (need
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  mmx/see optimization). Enable multiple image size support in ffserver.
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- added multi live feed support in ffserver
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- suppressed master feature from ffserver (it should be done with an
  external program which opens the .ffm url and writes it to another
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  ffserver)
- added preliminary support for video stream parsing (WAV and AVI half
  done). Added proper support for audio/video file conversion in
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  ffmpeg.
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- added preliminary support for video file sending from ffserver
- redesigning I/O subsystem: now using URL based input and output
  (see avio.h)
- added WAV format support
- added "tty user interface" to ffmpeg to stop grabbing gracefully
- added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
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  (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
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- added MMX DCT from mpeg2_movie 1.5 (Juanjo)
- added new motion estimation algorithms, log and phods (Juanjo)
- changed directories: libav for format handling, libavcodec for
  codecs
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version 0.3.4:

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- added stereo in MPEG audio encoder
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