mov: add support for reading and writing the 'chan' tag
[libav.git] / Changelog
1Entries are sorted chronologically from oldest to youngest within each release,
2releases are sorted from youngest to oldest.
5version <next>:
6- BWF muxer
c2d23309 7- Flash Screen Video 2 decoder
4d58e4cb 8- ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
9- ffmpeg deprecated, added avconv, which is almost the same for now, except
10for a few incompatible changes in the options, which will hopefully make them
11easier to use. The changes are:
12 * The options placement is now strictly enforced! While in theory the
13 options for ffmpeg should be given in [input options] -i INPUT [output
14 options] OUTPUT order, in practice it was possible to give output options
15 before the -i and it mostly worked. Except when it didn't - the behavior was
16 a bit inconsistent. In avconv, it is not possible to mix input and output
17 options. All non-global options are reset after an input or output filename.
18 * All per-file options are now truly per-file - they apply only to the next
19 input or output file and specifying different values for different files
20 will now work properly (notably -ss and -t options).
21 * All per-stream options are now truly per-stream - it is possible to
22 specify which stream(s) should a given option apply to. See the Stream
23 specifiers section in the avconv manual for details.
24 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
25 sense that they're specified after the output filename instead of before,
26 like all other options. In avconv this irregularity is removed, all options
27 apply to the next input or output file.
28 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
29 irregular and highly confusing, they were also redundant. In avconv the -map
30 option will create new streams in the output file and map input streams to
31 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
32 each stream in the first input file.
33 * The -map option now has slightly different and more powerful syntax:
34 + Colons (':') are used to separate file index/stream type/stream index
35 instead of dots. Comma (',') is used to separate the sync stream instead
36 of colon.. This is done for consistency with other options.
37 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
38 output stream from the third input audio stream.
39 + Omitting the stream index now maps all the streams of the given type,
40 not just the first. E.g. -map 0:s creates output streams for all the
41 subtitle streams in the first input file.
42 + Since -map can now match multiple streams, negative mappings were
320d7693 43 introduced. Negative mappings disable some streams from an already
44 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
45 all the stream in the first input file, except for the second audio
46 stream'.
47 * There is a new option -c (or -codec) for choosing the decoder/encoder to
48 use, which allows to precisely specify target stream(s) consistently with
49 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
50 libvorbis sets the codec for the first audio stream and -c copy copies all
51 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
52 aliases to -c:v/a/s
320d7693 53 * It is now possible to precisely specify which stream should an AVOption
54 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
55 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
56 syntax is deprecated and will stop working soon.
57 * -map_chapters now takes only an input file index and applies to the next
58 output file. This is consistent with how all the other options work.
59 * -map_metadata now takes only an input metadata specifier and applies to
60 the next output file. Output metadata specifier is now part of the option
61 name, similarly to the AVOptions/map/codec feature above.
62 * -metadata can now be used to set metadata on streams and chapters, e.g.
63 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
64 This made -vlang/-alang/-slang options redundant, so they were removed.
65 * -qscale option now uses stream specifiers and applies to all streams, not
66 just video. I.e. plain -qscale number would now apply to all streams. To get
67 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
68 and -aq is now an alias for -q:a.
69 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
70 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
71 * -itsscale option now uses stream specifiers, so its argument is only the
72 scale parameter.
73 * -intra option was removed, use -g 0 for the same effect.
74 * -psnr option was removed, use -flags +psnr for the same effect.
75 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
76 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
77 * -vtag/-atag/-stag options are now aliases to the new -tag option.
c6c6c1aa 78- XMV demuxer
45ecda85 79- Windows Media Image decoder
dcb9f6a2 80- LATM muxer/demuxer
ee42716b 81- showinfo filter
615baa13 82- split filter
e417d80d 83- libcdio-paranoia input device for audio CD grabbing
d763fb7d 84- select filter
be64629a 85- Apple ProRes decoder
4ca59d19 86- CELT in Ogg demuxing
51757ac7 87- VC-1 interlaced decoding
8fe0c527 88- lut, lutrgb, and lutyuv filters
ce6b6ef6 89- boxblur filter
0d8506b8 90- Ut Video decoder
b606a017 91- Speex encoding via libspeex
76741b0e 92- 4:2:2 H.264 decoding support
a7476298 93- 4:2:2 and 4:4:4 H.264 encoding with libx264
0de9c41f 94- Pulseaudio input device
594b54b5 95- replacement Indeo 3 decoder
183baead 96- TLS/SSL and HTTPS protocol support
97- AVOptions API rewritten and documented
98- most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
99 AVCodecContext deprecated. Codec private options should be used instead.
100- Properly working defaults in libx264 wrapper, support for native presets.
101- Encrypted OMA files support
f545e006 102- Discworld II BMV decoding support
c433a3f9 103- VBLE Decoder
ac3dbb4d 104- OS X Video Decoder Acceleration (VDA) support
a17c3c7d 105- CRI ADX audio format demuxer
f28070a1 106- Playstation Portable PMP format demuxer
c8b27a0e 107- PCM format support in OMA demuxer
e93947b7 108- CLJR encoder
bed31c7e 111version 0.7:
2db272e9 112
aa47c35d 113- E-AC-3 audio encoder
b95d19b0 114- ac3enc: add channel coupling support
115- floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
116- H.264/MPEG frame-level multithreading
117- av_metadata_* functions renamed to av_dict_* and moved to libavutil
118- 4:4:4 H.264 decoding support
119- 10-bit H.264 optimizations for x86
b047941d 120- bump libswscale for recently reported ABI break
aa47c35d 121
123version 0.7_beta2:
b047941d 125- VP8 frame-level multithreading
bed31c7e 126- NEON optimizations for VP8
127- removed a lot of deprecated API cruft
128- FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
e27ce0ee 129- DPX image encoder
9aa91043 130- SMPTE 302M AES3 audio decoder
b047941d 131- ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
bed31c7e 132- 9bit and 10bit per sample support in the H.264 decoder
e27ce0ee 133
135version 0.7_beta1:
316d6c15 137- WebM support in Matroska de/muxer
21d52447 138- low overhead Ogg muxing
a2403986 139- MMS-TCP support
ee0e9146 140- VP8 de/encoding via libvpx
173bb37f 141- Demuxer for On2's IVF format
a526d619 142- Pictor/PC Paint decoder
a2063901 143- HE-AAC v2 decoder
41f91b5f 144- libfaad2 wrapper removed
e83aed04 145- DTS-ES extension (XCh) decoding support
db7d307f 146- native VP8 decoder
680b2321 147- RTSP tunneling over HTTP
4449df6b 148- RTP depacketization of SVQ3
2d525ef4 149- -strict inofficial replaced by -strict unofficial
066ce8c9 150- ffplay -exitonkeydown and -exitonmousedown options added
b576934d 151- native GSM / GSM MS decoder
a59096e4 152- RTP depacketization of QDM2
5a717094 153- ANSI/ASCII art playback system
e8723e24 154- Lego Mindstorms RSO de/muxer
ba2c508d 155- SubRip subtitle file muxer and demuxer
de295976 156- Chinese AVS encoding via libxavs
530bbe96 157- ffprobe -show_packets option added
91af5601 158- RTP packetization of Theora and Vorbis
1ddc176e 159- RTP depacketization of MP4A-LATM
51291e60 160- RTP packetization and depacketization of VP8
a1e171df 161- hflip filter
cd223e0b 162- Apple HTTP Live Streaming demuxer
7f50caa7 163- a64 codec
b8521394 164- MMS-HTTP support
21e681ba 165- G.722 ADPCM audio encoder/decoder
43836928 166- R10k video decoder
6ebf0bfc 167- ocv_smooth filter
47941088 168- frei0r wrapper filter
2bc05d35 169- change crop filter syntax to width:height:x:y
75b67a8a 170- make the crop filter accept parametric expressions
6afd569e 171- make ffprobe accept AVFormatContext options
5900deeb 172- yadif filter
13fabd7a 173- blackframe filter
8878e3b2 174- Demuxer for Leitch/Harris' VR native stream format (LXF)
3ece3e4c 175- RTP depacketization of the X-QT QuickTime format
01c8d258 176- SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
68b79bfc 177- cropdetect filter
5879ea6d 178- ffmpeg -crop* options removed
43945b27 179- transpose filter added
4ad08021 180- ffmpeg -force_key_frames option added
44594cc7 181- demuxer for receiving raw rtp:// URLs without an SDP description
136e19e1 182- single stream LATM/LOAS decoder
a532bb39 183- setpts filter added
b047941d 184- Win64 support for optimized x86 assembly functions
ba83c4bf 185- MJPEG/AVI1 to JPEG/JFIF bitstream filter
c99f9b0a 186- ASS subtitle encoder and decoder
b047941d 187- IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
58935b25 188- overlay filter added
2fb21bf4 189- rename aspect filter to setdar, and pixelaspect to setsar
3b39e273 190- IEC 61937 demuxer
9d09ebf1 191- Mobotix .mxg demuxer
f8608dca 192- frei0r source added
a4dc7aa5 193- hqdn3d filter added
35014efc 194- RTP depacketization of QCELP
475ae04a 195- FLAC parser added
d5f187fd 196- gradfun filter added
2b2a597e 197- AMR-WB decoder
3579b405 198- replace the ocv_smooth filter with a more generic ocv filter
82ca054a 199- Windows Televison (WTV) demuxer
fd5b124d 200- FFmpeg metadata format muxer and demuxer
2c77c906 201- SubRip (srt) subtitle decoder
6fd96d1a 202- floating-point AC-3 encoder added
d267b339 203- Lagarith decoder
fbd56159 204- ffmpeg -copytb option added
54bc6403 205- IVF muxer added
44ddfd47 206- Wing Commander IV movies decoder added
9409c381 207- movie source added
ccfcddb3 208- Bink version 'b' audio and video decoder
402f9ad5 209- Bitmap Brothers JV playback system
dc6fdad5 210- Apple HTTP Live Streaming protocol handler
15d59d2c 211- sndio support for playback and record
c6f95144 212- Linux framebuffer input device added
42315dab 213- Chronomaster DFA decoder
ce02f9be 214- Mobotix MxPEG decoder
d89e738a 215- AAC encoding via libvo-aacenc
f502ff3f 216- AMR-WB encoding via libvo-amrwbenc
ad4c5034 217- xWMA demuxer
2f84bb42 218- fieldorder video filter added
221version 0.6:
2db272e9 223- PB-frame decoding for H.263
b11163c8 224- deprecated vhook subsystem removed
3444c914 225- deprecated old scaler removed
616e899c 226- VQF demuxer
b3b5946c 227- Alpha channel scaler
effcedf7 228- PCX encoder
9edfaf3c 229- RTP packetization of H.263
08e696c0 230- RTP packetization of AMR
e6327fba 231- RTP depacketization of Vorbis
e9356be5 232- CorePNG decoding support
9189d7eb 233- Cook multichannel decoding support
276f8e2b 234- introduced avlanguage helpers in libavformat
f0b19bd3 235- 8088flex TMV demuxer and decoder
5f1ac36d 236- per-stream language-tags extraction in asfdec
ca0bb1c4 237- V210 decoder and encoder
de08ebe3 238- remaining GPL parts in AC-3 decoder converted to LGPL
cdce0fb8 239- QCP demuxer
cbfe5bee 240- SoX native format muxer and demuxer
0b175caa 241- AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
94d3d6a4 242- DPX image decoder
c63ea92b 243- Electronic Arts Madcow decoder
a4276ba2 244- DivX (XSUB) subtitle encoder
0a4a0aa7 245- nonfree libamr support for AMR-NB/WB decoding/encoding removed
57a80d79 246- experimental AAC encoder
c2f3eec4 247- RTP depacketization of ASF and RTSP from WMS servers
9fd6b843 248- RTMP support in libavformat
3106f489 249- noX handling for OPT_BOOL X options
740e89cf 250- Wave64 demuxer
ab1eff9c 251- IEC-61937 compatible Muxer
7bd47335 252- TwinVQ decoder
c58b82a2 253- Bluray (PGS) subtitle decoder
5dd3707b 254- LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
57a80d79 255- WMA Pro decoder
5f14b565 256- Core Audio Format demuxer
257- Atrac1 decoder
258- MD STUDIO audio demuxer
811e0fc2 259- RF64 support in WAV demuxer
99971952 260- MPEG-4 Audio Lossless Coding (ALS) decoder
0584b718 261- -formats option split into -formats, -codecs, -bsfs, and -protocols
7c3c53c8 262- IV8 demuxer
a3d995c1 263- CDG demuxer and decoder
4aaab0a3 264- R210 decoder
ce293510 265- Auravision Aura 1 and 2 decoders
e6565055 266- Deluxe Paint Animation playback system
d140b025 267- SIPR decoder
83ab7f18 268- Adobe Filmstrip muxer and demuxer
45aa9080 269- RTP depacketization of H.263
342c7dfd 270- Bink demuxer and audio/video decoders
4ebaec79 271- enable symbol versioning by default for linkers that support it
b9e06ddd 272- IFF PBM/ILBM bitmap decoder
084eb95f 273- concat protocol
5bebe94d 274- Indeo 5 decoder
556aa7a1 275- RTP depacketization of AMR
276- WMA Voice decoder
277- ffprobe tool
4fe3edaa 278- AMR-NB decoder
6f5a3d0a 279- RTSP muxer
ed492b61 280- HE-AAC v1 decoder
bf354122 281- Kega Game Video (KGV1) decoder
59b4b540 282- VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
887af2aa 283- RTP depacketization of Theora
b26708d5 284- HTTP Digest authentication
0f943ce6 285- RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
38b9d8b8 286- Psygnosis YOP demuxer and video decoder
ca6e7708 287- spectral extension support in the E-AC-3 decoder
ac1c9564 288- unsharp video filter
910cde56 289- RTP hinting in the mov/3gp/mp4 muxer
290- Dirac in Ogg demuxing
291- seek to keyframes in Ogg
292- 4:2:2 and 4:4:4 Theora decoding
293- 35% faster VP3/Theora decoding
294- faster AAC decoding
295- faster H.264 decoding
d31ba231 296- RealAudio 1.0 (14.4K) encoder
de08ebe3 297
2db272e9 298
299version 0.5:
06ab9cff 301- DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
9d53d58e 302- TechSmith Camtasia (TSCC) video decoder
d0a0bbd2 303- IBM Ultimotion (ULTI) video decoder
304- Sierra Online audio file demuxer and decoder
305- Apple QuickDraw (qdrw) video decoder
22052247 306- Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
ad81a9fe 307- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
ab711b3c 308- Miro VideoXL (VIXL) video decoder
b06b45c4 309- H.261 video encoder
acfd8f0f 310- QPEG video decoder
353147ed 311- Nullsoft Video (NSV) file demuxer
13dfd2b9 312- Shorten audio decoder
9c7fb608 313- LOCO video decoder
115329f1 314- Apple Lossless Audio Codec (ALAC) decoder
a8a15e9d 315- Winnov WNV1 video decoder
589f8220 316- Autodesk Animator Studio Codec (AASC) decoder
bfaad39f 317- Indeo 2 video decoder
b81f8949 318- Fraps FPS1 video decoder
e0db8cfb 319- Snow video encoder/decoder
af4ca324 320- Sonic audio encoder/decoder
108ab268 321- Vorbis audio decoder
af4ca324 322- Macromedia ADPCM decoder
323- Duck TrueMotion 2 video decoder
324- support for decoding FLX and DTA extensions in FLIC files
b2909f1a 325- H.264 custom quantization matrices support
a8289180 326- ffserver fixed, it should now be usable again
8d1018bf 327- QDM2 audio decoder
8a2d410e 328- Real Cooker audio decoder
bf3027c8 329- TrueSpeech audio decoder
330- WMA2 audio decoder fixed, now all files should play correctly
331- RealAudio 14.4 and 28.8 decoders fixed
108ab268 332- JPEG-LS decoder
333- build system improvements
334- tabs and trailing whitespace removed from the codebase
108ab268 335- CamStudio video decoder
f11288da 336- AIFF/AIFF-C audio format, encoding and decoding
4accd1fd 337- ADTS AAC file reading and writing
ea395e8c 338- Creative VOC file reading and writing
4e114829 339- American Laser Games multimedia (*.mm) playback system
6a7d2c3d 340- Zip Motion Blocks Video decoder
58cf42fa 341- improved Theora/VP3 decoder
8a2d410e 342- True Audio (TTA) decoder
26376701 343- AVS demuxer and video decoder
108ab268 344- JPEG-LS encoder
348efc18 345- Smacker demuxer and decoder
dfca23e3 346- NuppelVideo/MythTV demuxer and RTjpeg decoder
fd7b1991 347- KMVC decoder
58cf42fa 348- MPEG-2 intra VLC support
2d974017 349- MPEG-2 4:2:2 encoder
0919e788 350- Flash Screen Video decoder
cc0bc648 351- GXF demuxer
6a09487e 352- Chinese AVS decoder
43dcf590 353- GXF muxer
07bf2af8 354- MXF demuxer
b394e39a 355- VC-1/WMV3/WMV9 video decoder
0ccd1bb5 356- MacIntel support
8ac17293 357- AVISynth support
eb57c889 358- VMware video decoder
359- VP5 video decoder
360- VP6 video decoder
730581f3 361- WavPack lossless audio decoder
3689cf16 362- Targa (.TGA) picture decoder
108ab268 363- Vorbis audio encoder
dc56e0de 364- Delphine Software .cin demuxer/audio and video decoder
29f86228 365- Tiertex .seq demuxer/video decoder
f7bc5837 366- MTV demuxer
716222db 367- TIFF picture encoder and decoder
06d392a7 368- GIF picture decoder
58cf42fa 369- Intel Music Coder decoder
6a7d2c3d 370- Zip Motion Blocks Video encoder
185c7b6b 371- Musepack decoder
8adc51f2 372- Flash Screen Video encoder
150d2772 373- Theora encoding via libtheora
52548eee 374- BMP encoder
039cd4a7 375- WMA encoder
346a655d 376- GSM-MS encoder and decoder
01ca9ac3 377- DCA decoder
33a0dd37 378- DXA demuxer and decoder
52b6bad2 379- DNxHD decoder
efb0c399 380- Gamecube movie (.THP) playback system
a5fbe001 381- Blackfin optimizations
9a0ddd09 382- Interplay C93 demuxer and video decoder
1e6c6759 383- Bethsoft VID demuxer and video decoder
8e952e4d 384- CRYO APC demuxer
10e26bc7 385- Atrac3 decoder
b46d68c6 386- V.Flash PTX decoder
58cf42fa 387- RoQ muxer, RoQ audio encoder
ad39f1a7 388- Renderware TXD demuxer and decoder
4d5588cf 389- extern C declarations for C++ removed from headers
82e60541 390- sws_flags command line option
ddcf4b5d 391- codebook generator
03e3e765 392- RoQ video encoder
d3b7406c 393- QTRLE encoder
d22e8442 394- OS/2 support removed and restored again
6ea67bbb 395- AC-3 decoder
58cf42fa 396- NUT muxer
108ab268 397- additional SPARC (VIS) optimizations
e09f7d61 398- Matroska muxer
58cf42fa 399- slice-based parallel H.264 decoding
bf4a1f17 400- Monkey's Audio demuxer and decoder
8787d837 401- AMV audio and video decoder
fc4cbc16 402- DNxHD encoder
d6c52130 403- H.264 PAFF decoding
636b13c5 404- Nellymoser ASAO decoder
66f7679c 405- Beam Software SIFF demuxer and decoder
f9def9cc 406- libvorbis Vorbis decoding removed in favor of native decoder
541432c3 407- IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
56dc1fdf 408- Ogg (Theora, Vorbis and FLAC) muxer
108ab268 409- The "device" muxers and demuxers are now in a new libavdevice library
410- PC Paintbrush PCX decoder
411- Sun Rasterfile decoder
920d3609 412- TechnoTrend PVA demuxer
77c1d04d 413- Linux Media Labs MPEG-4 (LMLM4) demuxer
b264a084 414- AVM2 (Flash 9) SWF muxer
9dc92a38 415- QT variant of IMA ADPCM encoder
39fc859e 416- VFW grabber
58cf42fa 417- iPod/iPhone compatible mp4 muxer
a7129de5 418- Mimic decoder
0f3444e1 419- MSN TCP Webcam stream demuxer
86b3cf7c 420- RL2 demuxer / decoder
421- IFF demuxer
422- 8SVX audio decoder
b00b15be 423- non-recursive Makefiles
b64c096b 424- BFI demuxer
74118c07 425- MAXIS EA XA (.xa) demuxer / decoder
2003d3da 426- BFI video decoder
ea662534 427- OMA demuxer
b517af05 428- MLP/TrueHD decoder
e1c74782 429- Electronic Arts CMV decoder
430- Motion Pixels Video decoder
431- Motion Pixels MVI demuxer
e44bbf62 432- removed animated GIF decoder/demuxer
51c3861e 433- D-Cinema audio muxer
cfc78718 434- Electronic Arts TGV decoder
833e90dd 435- Apple Lossless Audio Codec (ALAC) encoder
7d8f3de4 436- AAC decoder
eb6fc557 437- floating point PCM encoder/decoder
cedebde1 438- MXF muxer
108ab268 439- DV100 AKA DVCPRO HD decoder and demuxer
1f6a594d 440- E-AC-3 support added to AC-3 decoder
755ba886 441- Nellymoser ASAO encoder
0c86f89a 442- ASS and SSA demuxer and muxer
d8d12c15 443- liba52 wrapper removed
0ac1dc6f 444- SVQ3 watermark decoding support
f6958006 445- Speex decoding via libspeex
42b30357 446- Electronic Arts TGQ decoder
108ab268 447- RV40 decoder
73b458e3 448- QCELP / PureVoice decoder
108ab268 449- RV30 decoder
7906f3ca 450- hybrid WavPack support
7eb68edb 451- R3D REDCODE demuxer
115d095e 452- ALSA support for playback and record
d8964f3a 453- Electronic Arts TQI decoder
9a77d59a 454- OpenJPEG based JPEG 2000 decoder
58cf42fa 455- NC (NC4600) camera file demuxer
865780ae 456- Gopher client support
bd3f81f3 457- MXF D-10 muxer
458- generic metadata API
9d53d58e 460
461version 0.4.9-pre1:
4fa1c4fa 463- DV encoder, DV muxer
464- Microsoft RLE video decoder
465- Microsoft Video-1 decoder
070ed1bc 466- Apple Animation (RLE) decoder
42cad81a 467- Apple Graphics (SMC) decoder
468- Apple Video (RPZA) decoder
469- Cinepak decoder
470- Sega FILM (CPK) file demuxer
42cad81a 471- Westwood multimedia support (VQA & AUD files)
4120a53a 472- Id Quake II CIN playback support
473- 8BPS video decoder
474- FLIC playback support
475- RealVideo 2.0 (RV20) decoder
476- Duck TrueMotion v1 (DUCK) video decoder
da00f30e 477- Sierra VMD demuxer and video decoder
1defd2a8 478- MSZH and ZLIB decoder support
3b64893d 479- SVQ1 video encoder
1defd2a8 480- AMR-WB support
e0db8cfb 481- PPC optimizations
1defd2a8 482- rate distortion optimal cbp support
e0db8cfb 483- rate distorted optimal ac prediction for MPEG-4
484- rate distorted optimal lambda->qp support
485- AAC encoding with libfaac
486- Sunplus JPEG codec (SP5X) support
487- use Lagrange multipler instead of QP for ratecontrol
488- Theora/VP3 decoding support
1defd2a8 489- XA and ADX ADPCM codecs
e0db8cfb 490- export MPEG-2 active display area / pan scan
491- Add support for configuring with IBM XLC
492- floating point AAN DCT
493- initial support for zygo video (not complete)
494- RGB ffv1 support
495- new audio/video parser API
496- av_log() system
497- av_read_frame() and av_seek_frame() support
498- missing last frame fixes
499- seek by mouse in ffplay
500- noise reduction of DCT coefficients
501- H.263 OBMC & 4MV support
502- H.263 alternative inter vlc support
503- H.263 loop filter
504- H.263 slice structured mode
505- interlaced DCT support for MPEG-2 encoding
1defd2a8 506- stuffing to stay above min_bitrate
e0db8cfb 507- MB type & QP visualization
508- frame stepping for ffplay
509- interlaced motion estimation
510- alternate scantable support
511- SVCD scan offset support
512- closed GOP support
513- SSE2 FDCT
514- quantizer noise shaping
515- G.726 ADPCM audio codec
516- MS ADPCM encoding
517- multithreaded/SMP motion estimation
518- multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
519- multithreaded/SMP decoding for MPEG-2
520- FLAC decoder
521- Metrowerks CodeWarrior suppport
e0db8cfb 522- H.263+ custom pcf support
1defd2a8 523- nicer output for 'ffmpeg -formats'
e0db8cfb 524- Matroska demuxer
1defd2a8 525- SGI image format, encoding and decoding
526- H.264 loop filter support
527- H.264 CABAC support
f073a393 528- nicer looking arrows for the motion vector visualization
529- improved VCD support
530- audio timestamp drift compensation
e0db8cfb 531- MPEG-2 YUV 422/444 support
532- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
533- better image scaling
e0db8cfb 534- H.261 support
535- correctly interleave packets during encoding
536- VIS optimized motion compensation
537- intra_dc_precision>0 encoding support
538- support reuse of motion vectors/MB types/field select values of the source video
539- more accurate deblock filter
540- padding support
541- many optimizations and bugfixes
055dc116 542- FunCom ISS audio file demuxer and according ADPCM decoding
2fdf638b 543
0ca3e336 544
545version 0.4.8:
e0db8cfb 547- MPEG-2 video encoding (Michael)
d9d8910b 548- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
549- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
550 and Mario Brito)
551- Xan DPCM audio decoder (Mario Brito)
186447f8 552- Interplay MVE playback subsystem (Mike Melanson)
553- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
0ca3e336 555
b17e9c99 556version 0.4.7:
e07702ba 557
e0db8cfb 558- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
124ba583 559 (originally from public domain player for Amiga at
e0db8cfb 560- current version now also compiles with older GCC (Fabrice)
561- 4X multimedia playback system including 4xm file demuxer (Mike
562 Melanson), and 4X video and audio codecs (Michael)
563- Creative YUV (CYUV) decoder (Mike Melanson)
564- FFV1 codec (our very simple lossless intra only codec, compresses much better
565 than HuffYUV) (Michael)
566- ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
567- tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
568 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
569- ffplay has been replaced with a newer version which uses SDL (optionally)
e0db8cfb 570 for multiplatform support (Fabrice)
571- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
572 by anonymous
573- AMR format has been added (Johannes Carlsson)
e0db8cfb 574- 3GP support has been added (Johannes Carlsson)
575- VP3 codec has been added (Mike Melanson)
576- more MPEG-1/2 fixes
577- better multiplatform support, MS Visual Studio fixes (various)
578- AltiVec optimizations (Magnus Damn and others)
e07702ba 579- SH4 processor support has been added (BERO)
580- new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
581- VOB streaming support (Brian Foley)
582- better MP3 autodetection (Andriy Rysin)
583- qpel encoding (Michael)
584- 4mv+b frames encoding finally fixed (Michael)
585- chroma ME (Michael)
586- 5 comparison functions for ME (Michael)
587- B-frame encoding speedup (Michael)
588- WMV2 codec (unfinished - Michael)
d3d10087 589- user specified diamond size for EPZS (Michael)
590- Playstation STR playback subsystem, still experimental (Mike and Michael)
591- ASV2 codec (Michael)
592- CLJR decoder (Alex)
d3d10087 593
e0db8cfb 594.. And lots more new enhancements and fixes.
e07702ba 595
0ca3e336 596
d3d10087 597version 0.4.6:
739d6efa 598
599- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
600 from scratch
601- Recoded DCT and motion vector search with gcc (no longer depends on nasm)
602- fix quantization bug in AC3 encoder
603- added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
604- added prototype ffplay program
605- added GOB header parsing on H.263/H.263+ decoder (Juanjo)
606- bug fix on MCBPC tables of H.263 (Juanjo)
607- bug fix on DC coefficients of H.263 (Juanjo)
608- added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
609- now we can decode H.263 streams found in QuickTime files (Juanjo)
610- now we can decode H.263 streams found in VIVO v1 files(Juanjo)
644d98a4 611- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
612- added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
613- now H.263 picture size is returned on the first decoded frame (Juanjo)
7f913a35 614- added first regression tests
e0db8cfb 615- added MPEG-2 TS demuxer
a31e01c5 616- new demux API for libav
6d291820 617- more accurate and faster IDCT (Michael)
e0db8cfb 618- faster and entropy-controlled motion search (Michael)
619- two pass video encoding (Michael)
620- new video rate control (Michael)
621- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
622- great performance improvement of video encoders and decoders (Michael)
623- new and faster bit readers and vlc parsers (Michael)
e0db8cfb 624- high quality encoding mode: tries all macroblock/VLC types (Michael)
625- added DV video decoder
626- preliminary RTP/RTSP support in ffserver and libavformat
627- H.263+ AIC decoding/encoding support (Juanjo)
628- VCD MPEG-PS mode (Juanjo)
629- PSNR stuff (Juanjo)
630- simple stats output (Juanjo)
631- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
739d6efa 632
0ca3e336 633
634version 0.4.5:
636- some header fixes (Zdenek Kabelac <kabi at>)
637- many MMX optimizations (Nick Kurshev <nickols_k at>)
638- added configure system (actually a small shell script)
639- added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
de6d9b64 640 Michael Hipp (temporary solution - waiting for integer only
641 decoder)
642- fixed VIDIOCSYNC interrupt
643- added Intel H.263 decoding support ('I263' AVI fourCC)
644- added Real Video 1.0 decoding (needs further testing)
645- simplified image formats again. Added PGM format (=grey
646 pgm). Renamed old PGM to PGMYUV.
647- fixed msmpeg4 slice issues (tell me if you still find problems)
648- fixed OpenDivX bugs with newer versions (added VOL header decoding)
649- added support for MPlayer interface
650- added macroblock skip optimization
651- added MJPEG decoder
652- added mmx/mmxext IDCT from libmpeg2
0c1e384c 653- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
dd5cf2ad 654 <celer at>)
655- added pixel format conversion layer (e.g. for MJPEG or PPM)
656- added deinterlacing option
657- MPEG-1/2 fixes
658- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at>)
659- ARM optimizations (Lionel Ulmer <lionel.ulmer at>).
660- Windows porting of file converter
661- added MJPEG raw format (input/ouput)
662- added JPEG image format support (input/output)
de6d9b64 663
0ca3e336 664
665version 0.4.4:
667- fixed some std header definitions (Bjorn Lindgren
dd5cf2ad 668 <bjorn.e.lindgren at>).
669- added MPEG demuxer (MPEG-1 and 2 compatible).
670- added ASF demuxer
671- added prototype RM demuxer
672- added AC3 decoding (done with libac3 by Aaron Holtzman)
673- added decoding codec parameter guessing (.e.g. for MPEG, because the
674 header does not include them)
675- fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
676 play them (only tested video)
677- fixed H.263 white bug
678- fixed phase rounding in img resample filter
679- add MMX code for polyphase img resample filter
680- added CPU autodetection
681- added generic title/author/copyright/comment string handling (ASF and RM
682 use them)
de6d9b64 683- added SWF demux to extract MP3 track (not usable yet because no MP3
684 decoder)
685- added fractional frame rate support
de6d9b64 686- codecs are no longer searched by read_header() (should fix ffserver
e0db8cfb 687 segfault)
de6d9b64 688
0ca3e336 689
690version 0.4.3:
dd5cf2ad 692- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at>)
693- fixed raw yuv output
694- added motion rounding support in MPEG-4
695- fixed motion bug rounding in MSMPEG4
696- added B-frame handling in video core
697- added full MPEG-1 decoding support
698- added partial (frame only) MPEG-2 support
de6d9b64 699- changed the FOURCC code for H.263 to "U263" to be able to see the
700 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
701 this +codec ;) (JuanJo).
702- Halfpel motion estimation after MB type selection (JuanJo)
703- added pgm and .Y.U.V output format
704- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
705 output.
706- added pgmpipe I/O format (original patch from Martin Aumueller
dd5cf2ad 707 <lists at>, but changed completely since we use a format
e0db8cfb 708 instead of a protocol)
de6d9b64 709
0ca3e336 710
711version 0.4.2:
713- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
714 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
de6d9b64 715 missing. MSMPEG4 support is complete.
716- added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
717 can decode ffmpeg MPEGs :-)).
718- added libavcodec API documentation (see apiexample.c).
719- fixed image polyphase bug (the bottom of some images could be
e0db8cfb 720 greenish)
de6d9b64 721- added support for non clipped motion vectors (decoding only)
722 and image sizes non-multiple of 16
723- added support for AC prediction (decoding only)
724- added file overwrite confirmation (can be disabled with -y)
725- added custom size picture to H.263 using H.263+ (Juanjo)
de6d9b64 726
0ca3e336 727
728version 0.4.1:
730- added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
731 of AVI and ASF to DIV3.
732- added -me option to set motion estimation method
733 (default=log). suppressed redundant -hq option.
734- added options -acodec and -vcodec to force a given codec (useful for
735 AVI for example)
736- fixed -an option
737- improved dct_quantize speed
738- factorized some motion estimation code
de6d9b64 739
0ca3e336 740
741version 0.4.0:
743- removing grab code from ffserver and moved it to ffmpeg. Added
744 multistream support to ffmpeg.
de6d9b64 745- added timeshifting support for live feeds (option ?date=xxx in the
e0db8cfb 746 URL)
de6d9b64 747- added high quality image resize code with polyphase filter (need
56cc85a0 748 mmx/see optimization). Enable multiple image size support in ffserver.
e0db8cfb 749- added multi live feed support in ffserver
750- suppressed master feature from ffserver (it should be done with an
751 external program which opens the .ffm url and writes it to another
752 ffserver)
753- added preliminary support for video stream parsing (WAV and AVI half
754 done). Added proper support for audio/video file conversion in
de6d9b64 755 ffmpeg.
756- added preliminary support for video file sending from ffserver
757- redesigning I/O subsystem: now using URL based input and output
758 (see avio.h)
759- added WAV format support
760- added "tty user interface" to ffmpeg to stop grabbing gracefully
761- added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
dd5cf2ad 762 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at>)
763- added MMX DCT from mpeg2_movie 1.5 (Juanjo)
764- added new motion estimation algorithms, log and phods (Juanjo)
765- changed directories: libav for format handling, libavcodec for
766 codecs
de6d9b64 767
0ca3e336 768
769version 0.3.4:
e0db8cfb 771- added stereo in MPEG audio encoder
de6d9b64 772
0ca3e336 773
774version 0.3.3:
776- added 'high quality' mode which use motion vectors. It can be used in
777 real time at low resolution.
778- fixed rounding problems which caused quality problems at high
e0db8cfb 779 bitrates and large GOP size
de6d9b64 780
0ca3e336 781
782version 0.3.2: small fixes
e0db8cfb 784- ASF fixes
785- put_seek bug fix
0ca3e336 787
788version 0.3.1: added avi/divx support
790- added AVI support
791- added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
792- added sound for flash format (not tested)
0ca3e336 794
de6d9b64 795version 0.3: initial public release