Correctly handle empty frames
[libav.git] / Changelog
1 version <next>
2 - The "device" muxers and demuxers are now in a new libavdevice library
3 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
4 - TechSmith Camtasia (TSCC) video decoder
5 - IBM Ultimotion (ULTI) video decoder
6 - Sierra Online audio file demuxer and decoder
7 - Apple QuickDraw (qdrw) video decoder
8 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
9 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
10 - Miro VideoXL (VIXL) video decoder
11 - H.261 video encoder
12 - QPEG video decoder
13 - Nullsoft Video (NSV) file demuxer
14 - Shorten audio decoder
15 - LOCO video decoder
16 - Apple Lossless Audio Codec (ALAC) decoder
17 - Winnov WNV1 video decoder
18 - Autodesk Animator Studio Codec (AASC) decoder
19 - Indeo 2 video decoder
20 - Fraps FPS1 video decoder
21 - Snow video encoder/decoder
22 - Sonic audio encoder/decoder
23 - Vorbis audio encoder/decoder
24 - Macromedia ADPCM decoder
25 - Duck TrueMotion 2 video decoder
26 - support for decoding FLX and DTA extensions in FLIC files
27 - H.264 custom quantization matrices support
28 - ffserver fixed, it should now be usable again
29 - QDM2 audio decoder
30 - Real Cooker audio decoder
31 - TrueSpeech audio decoder
32 - WMA2 audio decoder fixed, now all files should play correctly
33 - RealAudio 14.4 and 28.8 decoders fixed
34 - JPEG-LS encoder and decoder
35 - CamStudio video decoder
36 - build system improvements
37 - tabs and trailing whitespace removed from the codebase
38 - AIFF/AIFF-C audio format, encoding and decoding
39 - ADTS AAC file reading and writing
40 - Creative VOC file reading and writing
41 - American Laser Games multimedia (*.mm) playback system
42 - Zip Blocks Motion Video decoder and encoder
43 - Improved Theora/VP3 decoder
44 - True Audio (TTA) decoder
45 - AVS demuxer and video decoder
46 - Smacker demuxer and decoder
47 - NuppelVideo/MythTV demuxer and RTjpeg decoder
48 - KMVC decoder
49 - MPEG-2 intra vlc support
50 - MPEG-2 4:2:2 encoder
51 - Flash Screen Video decoder
52 - GXF demuxer
53 - Chinese AVS decoder
54 - GXF muxer
55 - MXF demuxer
56 - VC-1/WMV3/WMV9 video decoder
57 - MacIntel support
58 - AVISynth support
59 - VMware video decoder
60 - VP5 video decoder
61 - VP6 video decoder
62 - WavPack lossless audio decoder
63 - Targa (.TGA) picture decoder
64 - Delphine Software .cin demuxer/audio and video decoder
65 - Tiertex .seq demuxer/video decoder
66 - MTV demuxer
67 - TIFF picture encoder and decoder
68 - GIF picture decoder
69 - Intel Music decoder
70 - Musepack decoder
71 - Flash Screen Video encoder
72 - Theora encoding via libtheora
73 - BMP encoder
74 - WMA encoder
75 - GSM-MS encoder and decoder
76 - DCA decoder
77 - DXA demuxer and decoder
78 - DNxHD decoder
79 - Gamecube movie (.THP) playback system
80 - Blackfin optimizations
81 - Interplay C93 demuxer and video decoder
82 - Bethsoft VID demuxer and video decoder
83 - CRYO APC demuxer
84 - Atrac3 decoder
85 - V.Flash PTX decoder
86 - RoQ muxer, audio encoder
87 - Renderware TXD demuxer and decoder
88 - extern C declarations for C++ removed from headers
89 - sws_flags command line option
90 - codebook generator
91 - RoQ video encoder
92 - QTRLE encoder
93 - OS/2 support removed and restored again
94 - AC-3 decoder
95 - NUT muxer (since r10052)
96 - Matroska muxer
97 - Slice-based parallel H.264 decoding
98 - Monkey's Audio demuxer and decoder
99 - additional SPARC (VIS) optimizations
100 - AMV audio and video decoder
101 - DNxHD encoder
102 - H.264 PAFF decoding
103 - Nellymoser ASAO decoder
104 - Beam Software SIFF demuxer and decoder
105 - libvorbis Vorbis decoding removed in favor of native decoder
106 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
107 - Ogg muxer
108 - PC Paintbrush PCX decoder
109 - Sun Rasterfile decoder
110 - TechnoTrend PVA demuxer
111 - Linux Media Labs MPEG-4 (LMLM4) demuxer
112 - AVM2 (Flash 9) SWF muxer
113 - QT variant of IMA ADPCM encoder
114 - VFW grabber
115
116 version 0.4.9-pre1:
117
118 - DV encoder, DV muxer
119 - Microsoft RLE video decoder
120 - Microsoft Video-1 decoder
121 - Apple Animation (RLE) decoder
122 - Apple Graphics (SMC) decoder
123 - Apple Video (RPZA) decoder
124 - Cinepak decoder
125 - Sega FILM (CPK) file demuxer
126 - Westwood multimedia support (VQA & AUD files)
127 - Id Quake II CIN playback support
128 - 8BPS video decoder
129 - FLIC playback support
130 - RealVideo 2.0 (RV20) decoder
131 - Duck TrueMotion v1 (DUCK) video decoder
132 - Sierra VMD demuxer and video decoder
133 - MSZH and ZLIB decoder support
134 - SVQ1 video encoder
135 - AMR-WB support
136 - PPC optimizations
137 - rate distortion optimal cbp support
138 - rate distorted optimal ac prediction for MPEG-4
139 - rate distorted optimal lambda->qp support
140 - AAC encoding with libfaac
141 - Sunplus JPEG codec (SP5X) support
142 - use Lagrange multipler instead of QP for ratecontrol
143 - Theora/VP3 decoding support
144 - XA and ADX ADPCM codecs
145 - export MPEG-2 active display area / pan scan
146 - Add support for configuring with IBM XLC
147 - floating point AAN DCT
148 - initial support for zygo video (not complete)
149 - RGB ffv1 support
150 - new audio/video parser API
151 - av_log() system
152 - av_read_frame() and av_seek_frame() support
153 - missing last frame fixes
154 - seek by mouse in ffplay
155 - noise reduction of DCT coefficients
156 - H.263 OBMC & 4MV support
157 - H.263 alternative inter vlc support
158 - H.263 loop filter
159 - H.263 slice structured mode
160 - interlaced DCT support for MPEG-2 encoding
161 - stuffing to stay above min_bitrate
162 - MB type & QP visualization
163 - frame stepping for ffplay
164 - interlaced motion estimation
165 - alternate scantable support
166 - SVCD scan offset support
167 - closed GOP support
168 - SSE2 FDCT
169 - quantizer noise shaping
170 - G.726 ADPCM audio codec
171 - MS ADPCM encoding
172 - multithreaded/SMP motion estimation
173 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
174 - multithreaded/SMP decoding for MPEG-2
175 - FLAC decoder
176 - Metrowerks CodeWarrior suppport
177 - H.263+ custom pcf support
178 - nicer output for 'ffmpeg -formats'
179 - Matroska demuxer
180 - SGI image format, encoding and decoding
181 - H.264 loop filter support
182 - H.264 CABAC support
183 - nicer looking arrows for the motion vector visualization
184 - improved VCD support
185 - audio timestamp drift compensation
186 - MPEG-2 YUV 422/444 support
187 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
188 - better image scaling
189 - H.261 support
190 - correctly interleave packets during encoding
191 - VIS optimized motion compensation
192 - intra_dc_precision>0 encoding support
193 - support reuse of motion vectors/MB types/field select values of the source video
194 - more accurate deblock filter
195 - padding support
196 - many optimizations and bugfixes
197
198 version 0.4.8:
199
200 - MPEG-2 video encoding (Michael)
201 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
202 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
203 and Mario Brito)
204 - Xan DPCM audio decoder (Mario Brito)
205 - Interplay MVE playback subsystem (Mike Melanson)
206 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
207
208 version 0.4.7:
209
210 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
211 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
212 - current version now also compiles with older GCC (Fabrice)
213 - 4X multimedia playback system including 4xm file demuxer (Mike
214 Melanson), and 4X video and audio codecs (Michael)
215 - Creative YUV (CYUV) decoder (Mike Melanson)
216 - FFV1 codec (our very simple lossless intra only codec, compresses much better
217 than HuffYUV) (Michael)
218 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
219 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
220 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
221 - ffplay has been replaced with a newer version which uses SDL (optionally)
222 for multiplatform support (Fabrice)
223 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
224 by anonymous
225 - AMR format has been added (Johannes Carlsson)
226 - 3GP support has been added (Johannes Carlsson)
227 - VP3 codec has been added (Mike Melanson)
228 - more MPEG-1/2 fixes
229 - better multiplatform support, MS Visual Studio fixes (various)
230 - AltiVec optimizations (Magnus Damn and others)
231 - SH4 processor support has been added (BERO)
232 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
233 - VOB streaming support (Brian Foley)
234 - better MP3 autodetection (Andriy Rysin)
235 - qpel encoding (Michael)
236 - 4mv+b frames encoding finally fixed (Michael)
237 - chroma ME (Michael)
238 - 5 comparison functions for ME (Michael)
239 - B-frame encoding speedup (Michael)
240 - WMV2 codec (unfinished - Michael)
241 - user specified diamond size for EPZS (Michael)
242 - Playstation STR playback subsystem, still experimental (Mike and Michael)
243 - ASV2 codec (Michael)
244 - CLJR decoder (Alex)
245
246 .. And lots more new enhancements and fixes.
247
248 version 0.4.6:
249
250 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
251 from scratch
252 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
253 - fix quantization bug in AC3 encoder
254 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
255 - added prototype ffplay program
256 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
257 - bug fix on MCBPC tables of H.263 (Juanjo)
258 - bug fix on DC coefficients of H.263 (Juanjo)
259 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
260 - now we can decode H.263 streams found in QuickTime files (Juanjo)
261 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
262 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
263 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
264 - now H.263 picture size is returned on the first decoded frame (Juanjo)
265 - added first regression tests
266 - added MPEG-2 TS demuxer
267 - new demux API for libav
268 - more accurate and faster IDCT (Michael)
269 - faster and entropy-controlled motion search (Michael)
270 - two pass video encoding (Michael)
271 - new video rate control (Michael)
272 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
273 - great performance improvement of video encoders and decoders (Michael)
274 - new and faster bit readers and vlc parsers (Michael)
275 - high quality encoding mode: tries all macroblock/VLC types (Michael)
276 - added DV video decoder
277 - preliminary RTP/RTSP support in ffserver and libavformat
278 - H.263+ AIC decoding/encoding support (Juanjo)
279 - VCD MPEG-PS mode (Juanjo)
280 - PSNR stuff (Juanjo)
281 - simple stats output (Juanjo)
282 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
283
284 version 0.4.5:
285
286 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
287 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
288 - added configure system (actually a small shell script)
289 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
290 Michael Hipp (temporary solution - waiting for integer only
291 decoder)
292 - fixed VIDIOCSYNC interrupt
293 - added Intel H.263 decoding support ('I263' AVI fourCC)
294 - added Real Video 1.0 decoding (needs further testing)
295 - simplified image formats again. Added PGM format (=grey
296 pgm). Renamed old PGM to PGMYUV.
297 - fixed msmpeg4 slice issues (tell me if you still find problems)
298 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
299 - added support for MPlayer interface
300 - added macroblock skip optimization
301 - added MJPEG decoder
302 - added mmx/mmxext IDCT from libmpeg2
303 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
304 <celer at shell.scrypt.net>)
305 - added pixel format conversion layer (e.g. for MJPEG or PPM)
306 - added deinterlacing option
307 - MPEG-1/2 fixes
308 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
309 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
310 - Windows porting of file converter
311 - added MJPEG raw format (input/ouput)
312 - added JPEG image format support (input/output)
313
314 version 0.4.4:
315
316 - fixed some std header definitions (Bjorn Lindgren
317 <bjorn.e.lindgren at telia.com>).
318 - added MPEG demuxer (MPEG-1 and 2 compatible).
319 - added ASF demuxer
320 - added prototype RM demuxer
321 - added AC3 decoding (done with libac3 by Aaron Holtzman)
322 - added decoding codec parameter guessing (.e.g. for MPEG, because the
323 header does not include them)
324 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
325 play them (only tested video)
326 - fixed H.263 white bug
327 - fixed phase rounding in img resample filter
328 - add MMX code for polyphase img resample filter
329 - added CPU autodetection
330 - added generic title/author/copyright/comment string handling (ASF and RM
331 use them)
332 - added SWF demux to extract MP3 track (not usable yet because no MP3
333 decoder)
334 - added fractional frame rate support
335 - codecs are no longer searched by read_header() (should fix ffserver
336 segfault)
337
338 version 0.4.3:
339
340 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
341 - fixed raw yuv output
342 - added motion rounding support in MPEG-4
343 - fixed motion bug rounding in MSMPEG4
344 - added B-frame handling in video core
345 - added full MPEG-1 decoding support
346 - added partial (frame only) MPEG-2 support
347 - changed the FOURCC code for H.263 to "U263" to be able to see the
348 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
349 this +codec ;) (JuanJo).
350 - Halfpel motion estimation after MB type selection (JuanJo)
351 - added pgm and .Y.U.V output format
352 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
353 output.
354 - added pgmpipe I/O format (original patch from Martin Aumueller
355 <lists at reserv.at>, but changed completely since we use a format
356 instead of a protocol)
357
358 version 0.4.2:
359
360 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
361 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
362 missing. MSMPEG4 support is complete.
363 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
364 can decode ffmpeg MPEGs :-)).
365 - added libavcodec API documentation (see apiexample.c).
366 - fixed image polyphase bug (the bottom of some images could be
367 greenish)
368 - added support for non clipped motion vectors (decoding only)
369 and image sizes non-multiple of 16
370 - added support for AC prediction (decoding only)
371 - added file overwrite confirmation (can be disabled with -y)
372 - added custom size picture to H.263 using H.263+ (Juanjo)
373
374 version 0.4.1:
375
376 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
377 of AVI and ASF to DIV3.
378 - added -me option to set motion estimation method
379 (default=log). suppressed redundant -hq option.
380 - added options -acodec and -vcodec to force a given codec (useful for
381 AVI for example)
382 - fixed -an option
383 - improved dct_quantize speed
384 - factorized some motion estimation code
385
386 version 0.4.0:
387
388 - removing grab code from ffserver and moved it to ffmpeg. Added
389 multistream support to ffmpeg.
390 - added timeshifting support for live feeds (option ?date=xxx in the
391 URL)
392 - added high quality image resize code with polyphase filter (need
393 mmx/see optimization). Enable multiple image size support in ffserver.
394 - added multi live feed support in ffserver
395 - suppressed master feature from ffserver (it should be done with an
396 external program which opens the .ffm url and writes it to another
397 ffserver)
398 - added preliminary support for video stream parsing (WAV and AVI half
399 done). Added proper support for audio/video file conversion in
400 ffmpeg.
401 - added preliminary support for video file sending from ffserver
402 - redesigning I/O subsystem: now using URL based input and output
403 (see avio.h)
404 - added WAV format support
405 - added "tty user interface" to ffmpeg to stop grabbing gracefully
406 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
407 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
408 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
409 - added new motion estimation algorithms, log and phods (Juanjo)
410 - changed directories: libav for format handling, libavcodec for
411 codecs
412
413 version 0.3.4:
414
415 - added stereo in MPEG audio encoder
416
417 version 0.3.3:
418
419 - added 'high quality' mode which use motion vectors. It can be used in
420 real time at low resolution.
421 - fixed rounding problems which caused quality problems at high
422 bitrates and large GOP size
423
424 version 0.3.2: small fixes
425
426 - ASF fixes
427 - put_seek bug fix
428
429 version 0.3.1: added avi/divx support
430
431 - added AVI support
432 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
433 - added sound for flash format (not tested)
434
435 version 0.3: initial public release