Documentation for -itsoffset switch by (Wolfram Gloger <wmglo at dent dot med dot...
[libav.git] / doc / ffmpeg-doc.texi
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1\input texinfo @c -*- texinfo -*-
2
3@settitle FFmpeg Documentation
4@titlepage
5@sp 7
6@center @titlefont{FFmpeg Documentation}
7@sp 3
8@end titlepage
9
10
11@chapter Introduction
12
13FFmpeg is a very fast video and audio converter. It can also grab from
14a live audio/video source.
15
16The command line interface is designed to be intuitive, in the sense
17that ffmpeg tries to figure out all the parameters, when
18possible. You have usually to give only the target bitrate you want.
19
20FFmpeg can also convert from any sample rate to any other, and resize
21video on the fly with a high quality polyphase filter.
22
23@chapter Quick Start
24
e99c4e10 25@c man begin EXAMPLES
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26@section Video and Audio grabbing
27
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28FFmpeg can use a video4linux compatible video source and any Open Sound
29System audio source:
30
9181577c 31@example
e99c4e10 32ffmpeg /tmp/out.mpg
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33@end example
34
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35Note that you must activate the right video source and channel before
36launching ffmpeg. You can use any TV viewer such as xawtv
37(@url{http://bytesex.org/xawtv/}) by Gerd Knorr which I find very
38good. You must also set correctly the audio recording levels with a
39standard mixer.
9181577c 40
6bf40f39 41@section Video and Audio file format conversion
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42
43* ffmpeg can use any supported file format and protocol as input:
44
45Examples:
46
47* You can input from YUV files:
48
49@example
e99c4e10 50ffmpeg -i /tmp/test%d.Y /tmp/out.mpg
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51@end example
52
e99c4e10 53It will use the files:
9181577c 54@example
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55/tmp/test0.Y, /tmp/test0.U, /tmp/test0.V,
56/tmp/test1.Y, /tmp/test1.U, /tmp/test1.V, etc...
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57@end example
58
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59The Y files use twice the resolution of the U and V files. They are
60raw files, without header. They can be generated by all decent video
61decoders. You must specify the size of the image with the @option{-s} option
62if ffmpeg cannot guess it.
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63
64* You can input from a RAW YUV420P file:
65
66@example
e99c4e10 67ffmpeg -i /tmp/test.yuv /tmp/out.avi
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68@end example
69
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70The RAW YUV420P is a file containing RAW YUV planar, for each frame first
71come the Y plane followed by U and V planes, which are half vertical and
72horizontal resolution.
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73
74* You can output to a RAW YUV420P file:
75
76@example
e99c4e10 77ffmpeg -i mydivx.avi -o hugefile.yuv
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78@end example
79
80* You can set several input files and output files:
81
82@example
e99c4e10 83ffmpeg -i /tmp/a.wav -s 640x480 -i /tmp/a.yuv /tmp/a.mpg
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84@end example
85
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86Convert the audio file a.wav and the raw yuv video file a.yuv
87to mpeg file a.mpg
9181577c 88
6bf40f39 89* You can also do audio and video conversions at the same time:
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90
91@example
e99c4e10 92ffmpeg -i /tmp/a.wav -ar 22050 /tmp/a.mp2
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93@end example
94
e99c4e10 95Convert the sample rate of a.wav to 22050 Hz and encode it to MPEG audio.
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96
97* You can encode to several formats at the same time and define a
e99c4e10 98mapping from input stream to output streams:
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99
100@example
e99c4e10 101ffmpeg -i /tmp/a.wav -ab 64 /tmp/a.mp2 -ab 128 /tmp/b.mp2 -map 0:0 -map 0:0
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102@end example
103
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104Convert a.wav to a.mp2 at 64 kbits and b.mp2 at 128 kbits. '-map
105file:index' specify which input stream is used for each output
106stream, in the order of the definition of output streams.
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107
108* You can transcode decrypted VOBs
109
110@example
e99c4e10 111ffmpeg -i snatch_1.vob -f avi -vcodec mpeg4 -b 800 -g 300 -bf 2 -acodec mp3 -ab 128 snatch.avi
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112@end example
113
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114This is a typical DVD ripper example, input from a VOB file, output
115to an AVI file with MPEG-4 video and MP3 audio, note that in this
116command we use B frames so the MPEG-4 stream is DivX5 compatible, GOP
117size is 300 that means an INTRA frame every 10 seconds for 29.97 fps
118input video. Also the audio stream is MP3 encoded so you need LAME
119support which is enabled using @code{--enable-mp3lame} when
120configuring. The mapping is particularly useful for DVD transcoding
121to get the desired audio language.
9181577c 122
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123NOTE: to see the supported input formats, use @code{ffmpeg -formats}.
124@c man end
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125
126@chapter Invocation
127
128@section Syntax
129
e99c4e10 130The generic syntax is:
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131
132@example
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133@c man begin SYNOPSIS
134ffmpeg [[options][@option{-i} @var{input_file}]]... @{[options] @var{output_file}@}...
135@c man end
9181577c 136@end example
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137@c man begin DESCRIPTION
138If no input file is given, audio/video grabbing is done.
9181577c 139
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140As a general rule, options are applied to the next specified
141file. For example, if you give the @option{-b 64} option, it sets the video
142bitrate of the next file. Format option may be needed for raw input
143files.
9181577c 144
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145By default, ffmpeg tries to convert as losslessly as possible: it
146uses the same audio and video parameter for the outputs as the one
147specified for the inputs.
148@c man end
9181577c 149
e99c4e10 150@c man begin OPTIONS
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151@section Main options
152
e99c4e10 153@table @option
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154@item -L
155show license
18bff752 156
9181577c 157@item -h
e99c4e10 158show help
18bff752 159
e99c4e10 160@item -formats
9181577c 161show available formats, codecs, protocols, ...
18bff752 162
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163@item -f fmt
164force format
18bff752 165
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166@item -i filename
167input file name
168
169@item -y
170overwrite output files
171
172@item -t duration
173set the recording time in seconds. @code{hh:mm:ss[.xxx]} syntax is also
174supported.
175
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176@item -ss position
177seek to given time position. @code{hh:mm:ss[.xxx]} syntax is also
178supported.
179
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180@item -title string
181set the title
182
183@item -author string
184set the author
185
186@item -copyright string
187set the copyright
188
189@item -comment string
190set the comment
191
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192@item -target type
193specify target file type ("vcd", "svcd" or "dvd"). All the format
194options (bitrate, codecs, buffer sizes) are automatically set by this
195option. You can just type:
196
197@example
198ffmpeg -i myfile.avi -target vcd /tmp/vcd.mpg
199@end example
200
201@item -hq
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202activate high quality settings
203
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204@item -itsoffset offset
205set the input time offset in seconds. @code{[-]hh:mm:ss[.xxx]} syntax
206is also supported. This option affects all the input files that
207follow it. The offset is added to the input files' timestamps;
208specifying a positive offset means that the corresponding streams are
209delayed by 'offset' seconds.
210
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211@end table
212
213@section Video Options
214
e99c4e10 215@table @option
9181577c 216@item -b bitrate
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217set the video bitrate in kbit/s (default = 200 kb/s)
218@item -r fps
219set frame rate (default = 25)
220@item -s size
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221set frame size. The format is @samp{WxH} (default 160x128). The
222following abbreviations are recognized:
223@table @samp
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224@item sqcif
225128x96
226@item qcif
227176x144
228@item cif
229352x288
230@item 4cif
231704x576
232@end table
233
234@item -aspect aspect
235set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)
236@item -croptop size
237set top crop band size (in pixels)
238@item -cropbottom size
239set bottom crop band size (in pixels)
240@item -cropleft size
241set left crop band size (in pixels)
242@item -cropright size
243set right crop band size (in pixels)
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244@item -padtop size
245set top pad band size (in pixels)
246@item -padbottom size
247set bottom pad band size (in pixels)
248@item -padleft size
249set left pad band size (in pixels)
250@item -padright size
251set right pad band size (in pixels)
252@item -padcolor color
253set right pad band size (hex). The value for pad color is expressed
254as a six digit hexidecimal number where the first two digits represent red,
255middle two digits green and last two digits blue. Defaults to 000000 (black)
9181577c 256@item -vn
18bff752 257disable video recording
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258@item -bt tolerance
259set video bitrate tolerance (in kbit/s)
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260@item -maxrate bitrate
261set max video bitrate tolerance (in kbit/s)
262@item -minrate bitrate
263set min video bitrate tolerance (in kbit/s)
264@item -bufsize size
265set ratecontrol buffere size (in kbit)
266@item -vcodec codec
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267force video codec to @var{codec}. Use the @code{copy} special value to
268tell that the raw codec data must be copied as is.
18bff752 269@item -sameq
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270use same video quality as source (implies VBR)
271
272@item -pass n
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273select the pass number (1 or 2). It is useful to do two pass
274encoding. The statistics of the video are recorded in the first pass and
275the video at the exact requested bit rate is generated in the second
276pass.
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277
278@item -passlogfile file
5ee03c86 279select two pass log file name to @var{file}.
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280
281@end table
282
18bff752 283@section Advanced Video Options
9181577c 284
e99c4e10 285@table @option
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286@item -g gop_size
287set the group of picture size
288@item -intra
289use only intra frames
290@item -qscale q
291use fixed video quantiser scale (VBR)
292@item -qmin q
293min video quantiser scale (VBR)
294@item -qmax q
295max video quantiser scale (VBR)
296@item -qdiff q
297max difference between the quantiser scale (VBR)
298@item -qblur blur
299video quantiser scale blur (VBR)
300@item -qcomp compression
301video quantiser scale compression (VBR)
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302
303@item -rc_init_cplx complexity
304initial complexity for 1-pass encoding
305@item -b_qfactor factor
306qp factor between p and b frames
307@item -i_qfactor factor
308qp factor between p and i frames
309@item -b_qoffset offset
310qp offset between p and b frames
311@item -i_qoffset offset
312qp offset between p and i frames
313@item -rc_eq equation
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314set rate control equation (@pxref{FFmpeg formula
315evaluator}). Default is @code{tex^qComp}.
316@item -rc_override override
317rate control override for specific intervals
18bff752 318@item -me method
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319set motion estimation method to @var{method}. Available methods are
320(from lower to best quality):
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321@table @samp
322@item zero
5ee03c86 323Try just the (0, 0) vector.
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324@item phods
325@item log
326@item x1
327@item epzs
328(default method)
329@item full
330exhaustive search (slow and marginally better than epzs)
331@end table
332
333@item -dct_algo algo
5ee03c86 334set dct algorithm to @var{algo}. Available values are:
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335@table @samp
336@item 0
337FF_DCT_AUTO (default)
338@item 1
339FF_DCT_FASTINT
340@item 2
341FF_DCT_INT
342@item 3
343FF_DCT_MMX
344@item 4
345FF_DCT_MLIB
346@item 5
347FF_DCT_ALTIVEC
348@end table
349
350@item -idct_algo algo
5ee03c86 351set idct algorithm to @var{algo}. Available values are:
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352@table @samp
353@item 0
354FF_IDCT_AUTO (default)
355@item 1
356FF_IDCT_INT
357@item 2
358FF_IDCT_SIMPLE
359@item 3
360FF_IDCT_SIMPLEMMX
361@item 4
362FF_IDCT_LIBMPEG2MMX
363@item 5
364FF_IDCT_PS2
365@item 6
366FF_IDCT_MLIB
367@item 7
368FF_IDCT_ARM
369@item 8
370FF_IDCT_ALTIVEC
371@item 9
372FF_IDCT_SH4
373@item 10
374FF_IDCT_SIMPLEARM
375@end table
376
377@item -er n
5ee03c86 378set error resilience to @var{n}.
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379@table @samp
380@item 1
5ee03c86 381FF_ER_CAREFULL (default)
18bff752 382@item 2
5ee03c86 383FF_ER_COMPLIANT
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384@item 3
385FF_ER_AGGRESSIVE
386@item 4
387FF_ER_VERY_AGGRESSIVE
388@end table
389
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390@item -ec bit_mask
391set error concealment to @var{bit_mask}. @var{bit_mask} is a bit mask of
392the following values:
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393@table @samp
394@item 1
5ee03c86 395FF_EC_GUESS_MVS (default=enabled)
18bff752 396@item 2
5ee03c86 397FF_EC_DEBLOCK (default=enabled)
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398@end table
399
400@item -bf frames
50f52fcd 401use 'frames' B frames (supported for MPEG-1, MPEG-2 and MPEG-4)
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402@item -mbd mode
403macroblock decision
404@table @samp
405@item 0
406FF_MB_DECISION_SIMPLE: use mb_cmp (cannot change it yet in ffmpeg)
407@item 1
408FF_MB_DECISION_BITS: chooses the one which needs the fewest bits
409@item 2
410FF_MB_DECISION_RD: rate distoration
411@end table
412
413@item -4mv
9181577c 414use four motion vector by macroblock (only MPEG-4)
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415@item -part
416use data partitioning (only MPEG-4)
417@item -bug param
418workaround not auto detected encoder bugs
419@item -strict strictness
420how strictly to follow the standarts
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421@item -aic
422enable Advanced intra coding (h263+)
423@item -umv
424enable Unlimited Motion Vector (h263+)
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425
426@item -deinterlace
427deinterlace pictures
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428@item -interlace
429force interlacing support in encoder (only MPEG-2 and MPEG-4). Use this option
430if your input file is interlaced and if you want to keep the interlaced
431format for minimum losses. The alternative is to deinterlace the input
432stream with @option{-deinterlace}, but deinterlacing introduces more
433losses.
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434@item -psnr
435calculate PSNR of compressed frames
436@item -vstats
5ee03c86 437dump video coding statistics to @file{vstats_HHMMSS.log}.
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438@item -vhook module
439insert video processing @var{module}. @var{module} contains the module
440name and its parameters separated by spaces.
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441@end table
442
443@section Audio Options
444
445@table @option
446@item -ab bitrate
447set audio bitrate (in kbit/s)
448@item -ar freq
5ee03c86 449set the audio sampling freq (default = 44100 Hz)
18bff752 450@item -ab bitrate
5ee03c86 451set the audio bitrate in kbit/s (default = 64)
18bff752 452@item -ac channels
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453set the number of audio channels (default = 1)
454@item -an
455disable audio recording
456@item -acodec codec
457force audio codec to @var{codec}. Use the @code{copy} special value to
458tell that the raw codec data must be copied as is.
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459@end table
460
461@section Audio/Video grab options
462
463@table @option
464@item -vd device
465set video grab device (e.g. @file{/dev/video0})
466@item -vc channel
467set video grab channel (DV1394 only)
468@item -tvstd standard
469set television standard (NTSC, PAL (SECAM))
470@item -dv1394
471set DV1394 grab
472@item -ad device
473set audio device (e.g. @file{/dev/dsp})
474@end table
475
476@section Advanced options
477
478@table @option
479@item -map file:stream
480set input stream mapping
481@item -debug
482print specific debug info
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483@item -benchmark
484add timings for benchmarking
485@item -hex
486dump each input packet
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487@item -bitexact
488only use bit exact algorithms (for codec testing)
489@item -ps size
490set packet size in bits
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491@item -re
492read input at native frame rate. Mainly used to simulate a grab device.
493@item -loop
494loop over the input stream. Currently it works only for image
495streams. This option is used for ffserver automatic testing.
9181577c 496@end table
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497
498@node FFmpeg formula evaluator
499@section FFmpeg formula evaluator
500
501When evaluating a rate control string, FFmpeg uses an internal formula
502evaluator.
503
504The following binary operators are available: @code{+}, @code{-},
505@code{*}, @code{/}, @code{^}.
506
507The following unary operators are available: @code{+}, @code{-},
508@code{(...)}.
509
510The following functions are available:
511@table @var
512@item sinh(x)
513@item cosh(x)
514@item tanh(x)
515@item sin(x)
516@item cos(x)
517@item tan(x)
518@item exp(x)
519@item log(x)
520@item squish(x)
521@item gauss(x)
522@item abs(x)
523@item max(x, y)
524@item min(x, y)
525@item gt(x, y)
526@item lt(x, y)
527@item eq(x, y)
528@item bits2qp(bits)
529@item qp2bits(qp)
530@end table
531
532The following constants are available:
533@table @var
534@item PI
535@item E
536@item iTex
537@item pTex
538@item tex
539@item mv
540@item fCode
541@item iCount
542@item mcVar
543@item var
544@item isI
545@item isP
546@item isB
547@item avgQP
548@item qComp
549@item avgIITex
550@item avgPITex
551@item avgPPTex
552@item avgBPTex
553@item avgTex
554@end table
555
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556@c man end
557
558@ignore
559
560@setfilename ffmpeg
561@settitle FFmpeg video converter
562
563@c man begin SEEALSO
564ffserver(1), ffplay(1) and the html documentation of @file{ffmpeg}.
565@c man end
566
567@c man begin AUTHOR
568Fabrice Bellard
569@c man end
570
571@end ignore
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572
573@section Protocols
574
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575The filename can be @file{-} to read from the standard input or to write
576to the standard output.
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577
578ffmpeg handles also many protocols specified with the URL syntax.
579
e99c4e10 580Use 'ffmpeg -formats' to have a list of the supported protocols.
9181577c 581
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582The protocol @code{http:} is currently used only to communicate with
583ffserver (see the ffserver documentation). When ffmpeg will be a
584video player it will also be used for streaming :-)
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585
586@chapter Tips
587
588@itemize
589@item For streaming at very low bit rate application, use a low frame rate
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590and a small gop size. This is especially true for real video where
591the Linux player does not seem to be very fast, so it can miss
592frames. An example is:
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593
594@example
e99c4e10 595ffmpeg -g 3 -r 3 -t 10 -b 50 -s qcif -f rv10 /tmp/b.rm
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596@end example
597
598@item The parameter 'q' which is displayed while encoding is the current
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599quantizer. The value of 1 indicates that a very good quality could
600be achieved. The value of 31 indicates the worst quality. If q=31
601too often, it means that the encoder cannot compress enough to meet
602your bit rate. You must either increase the bit rate, decrease the
603frame rate or decrease the frame size.
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604
605@item If your computer is not fast enough, you can speed up the
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606compression at the expense of the compression ratio. You can use
607'-me zero' to speed up motion estimation, and '-intra' to disable
608completely motion estimation (you have only I frames, which means it
609is about as good as JPEG compression).
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610
611@item To have very low bitrates in audio, reduce the sampling frequency
e99c4e10 612(down to 22050 kHz for mpeg audio, 22050 or 11025 for ac3).
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613
614@item To have a constant quality (but a variable bitrate), use the option
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615'-qscale n' when 'n' is between 1 (excellent quality) and 31 (worst
616quality).
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617
618@item When converting video files, you can use the '-sameq' option which
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619uses in the encoder the same quality factor than in the decoder. It
620allows to be almost lossless in encoding.
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621
622@end itemize
623
624@chapter Supported File Formats and Codecs
625
626You can use the @code{-formats} option to have an exhaustive list.
627
628@section File Formats
629
6bf40f39 630FFmpeg supports the following file formats through the @code{libavformat}
0699d2fe 631library:
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632
633@multitable @columnfractions .4 .1 .1
634@item Supported File Format @tab Encoding @tab Decoding @tab Comments
635@item MPEG audio @tab X @tab X
636@item MPEG1 systems @tab X @tab X
637@tab muxed audio and video
638@item MPEG2 PS @tab X @tab X
639@tab also known as @code{VOB} file
640@item MPEG2 TS @tab @tab X
641@tab also known as DVB Transport Stream
642@item ASF@tab X @tab X
643@item AVI@tab X @tab X
644@item WAV@tab X @tab X
645@item Macromedia Flash@tab X @tab X
646@tab Only embedded audio is decoded
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647@item FLV @tab X @tab X
648@tab Macromedia Flash video files
9181577c 649@item Real Audio and Video @tab X @tab X
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650@item Raw AC3 @tab X @tab X
651@item Raw MJPEG @tab X @tab X
652@item Raw MPEG video @tab X @tab X
653@item Raw PCM8/16 bits, mulaw/Alaw@tab X @tab X
42cad81a 654@item Raw CRI ADX audio @tab X @tab X
9181577c 655@item SUN AU format @tab X @tab X
7fe4c823 656@item NUT @tab X @tab X @tab NUT Open Container Format
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657@item Quicktime @tab X @tab X
658@item MPEG4 @tab X @tab X
9181577c 659@tab MPEG4 is a variant of Quicktime
0699d2fe 660@item Raw MPEG4 video @tab X @tab X
4fa1c4fa 661@item DV @tab X @tab X
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662@item 4xm @tab @tab X
663@tab 4X Technologies format, used in some games
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664@item Playstation STR @tab @tab X
665@item Id RoQ @tab @tab X
666@tab used in Quake III, Jedi Knight 2, other computer games
667@item Interplay MVE @tab @tab X
668@tab format used in various Interplay computer games
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669@item WC3 Movie @tab @tab X
670@tab multimedia format used in Origin's Wing Commander III computer game
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671@item Sega FILM/CPK @tab @tab X
672@tab used in many Sega Saturn console games
673@item Westwood Studios VQA/AUD @tab @tab X
674@tab Multimedia formats used in Westwood Studios games
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675@item Id Cinematic (.cin) @tab @tab X
676@tab Used in Quake II
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677@item FLIC format @tab @tab X
678@tab .fli/.flc files
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679@item Sierra VMD @tab @tab X
680@tab used in Sierra CD-ROM games
38088adf 681@item Matroska @tab @tab X
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682@end multitable
683
684@code{X} means that the encoding (resp. decoding) is supported.
685
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686@section Image Formats
687
688FFmpeg can read and write images for each frame of a video sequence. The
689following image formats are supported:
690
691@multitable @columnfractions .4 .1 .1
692@item Supported Image Format @tab Encoding @tab Decoding @tab Comments
693@item PGM, PPM @tab X @tab X
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694@item PAM @tab X @tab X @tab PAM is a PNM extension with alpha support
695@item PGMYUV @tab X @tab X @tab PGM with U and V components in YUV 4:2:0
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696@item JPEG @tab X @tab X @tab Progressive JPEG is not supported
697@item .Y.U.V @tab X @tab X @tab One raw file per component
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698@item Animated GIF @tab X @tab X @tab Only uncompressed GIFs are generated
699@item PNG @tab X @tab X @tab 2 bit and 4 bit/pixel not supported yet
6a91ec51 700@item SGI @tab X @tab X @tab SGI RGB image format
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701@end multitable
702
703@code{X} means that the encoding (resp. decoding) is supported.
704
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705@section Video Codecs
706
707@multitable @columnfractions .4 .1 .1 .7
708@item Supported Codec @tab Encoding @tab Decoding @tab Comments
4745b5bf 709@item MPEG1 video @tab X @tab X
50f52fcd 710@item MPEG2 video @tab X @tab X
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711@item MPEG4 @tab X @tab X @tab Also known as DIVX4/5
712@item MSMPEG4 V1 @tab X @tab X
713@item MSMPEG4 V2 @tab X @tab X
714@item MSMPEG4 V3 @tab X @tab X @tab Also known as DIVX3
715@item WMV7 @tab X @tab X
701b603d 716@item WMV8 @tab X @tab X @tab Not completely working
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717@item H263(+) @tab X @tab X @tab Also known as Real Video 1.0
718@item MJPEG @tab X @tab X
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719@item Lossless MJPEG @tab X @tab X
720@item Apple MJPEG-B @tab @tab X
721@item Sunplus MJPEG @tab @tab X @tab fourcc: SP5X
4fa1c4fa 722@item DV @tab X @tab X
4745b5bf 723@item Huff YUV @tab X @tab X
d6896c49 724@item FFmpeg Video 1 @tab X @tab X @tab Lossless codec (fourcc: FFV1)
701b603d 725@item Asus v1 @tab X @tab X @tab fourcc: ASV1
4d3b1f8d 726@item Asus v2 @tab X @tab X @tab fourcc: ASV2
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727@item Creative YUV @tab @tab X @tab fourcc: CYUV
728@item H.264 @tab @tab X
d2bfadc0 729@item Sorenson Video 1 @tab X @tab X @tab fourcc: SVQ1
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730@item Sorenson Video 3 @tab @tab X @tab fourcc: SVQ3
731@item On2 VP3 @tab @tab X @tab still experimental
d6896c49 732@item Theora @tab @tab X @tab still experimental
701b603d 733@item Intel Indeo 3 @tab @tab X @tab only works on i386 right now
2eb5d024 734@item FLV @tab X @tab X @tab Flash H263 variant
4d3b1f8d 735@item ATI VCR1 @tab @tab X @tab fourcc: VCR1
7fe4c823 736@item ATI VCR2 @tab @tab X @tab fourcc: VCR2
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737@item Cirrus Logic AccuPak @tab @tab X @tab fourcc: CLJR
738@item 4X Video @tab @tab X @tab used in certain computer games
739@item Sony Playstation MDEC @tab @tab X
740@item Id RoQ @tab @tab X @tab used in Quake III, Jedi Knight 2, other computer games
b17e9c99 741@item Xan/WC3 @tab @tab X @tab used in Wing Commander III .MVE files
186447f8 742@item Interplay Video @tab @tab X @tab used in Interplay .MVE files
070ed1bc 743@item Apple Animation @tab @tab X @tab fourcc: 'rle '
42cad81a 744@item Apple Graphics @tab @tab X @tab fourcc: 'smc '
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745@item Apple Video @tab @tab X @tab fourcc: rpza
746@item Cinepak @tab @tab X
747@item Microsoft RLE @tab @tab X
748@item Microsoft Video-1 @tab @tab X
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749@item Westwood VQA @tab @tab X
750@item Id Cinematic Video @tab @tab X @tab used in Quake II
1dc1ed99 751@item Planar RGB @tab @tab X @tab fourcc: 8BPS
42cad81a 752@item FLIC video @tab @tab X
9a4117d5 753@item Duck TrueMotion v1 @tab @tab X @tab fourcc: DUCK
da00f30e 754@item VMD Video @tab @tab X @tab used in Sierra VMD files
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755@item MSZH @tab @tab X @tab Part of LCL
756@item ZLIB @tab X @tab X @tab Part of LCL, encoder experimental
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757@end multitable
758
759@code{X} means that the encoding (resp. decoding) is supported.
760
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761Check at @url{http://www.mplayerhq.hu/~michael/codec-features.html} to
762get a precise comparison of FFmpeg MPEG4 codec compared to the other
763solutions.
764
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765@section Audio Codecs
766
767@multitable @columnfractions .4 .1 .1 .1 .7
768@item Supported Codec @tab Encoding @tab Decoding @tab Comments
769@item MPEG audio layer 2 @tab IX @tab IX
770@item MPEG audio layer 1/3 @tab IX @tab IX
6bf40f39 771@tab MP3 encoding is supported through the external library LAME
9181577c 772@item AC3 @tab IX @tab X
2eb5d024 773@tab liba52 is used internally for decoding
34d7008d 774@item Vorbis @tab X @tab X
2eb5d024 775@tab supported through the external library libvorbis
4745b5bf 776@item WMA V1/V2 @tab @tab X
d4c3c5a6 777@item Microsoft ADPCM @tab X @tab X
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778@item MS IMA ADPCM @tab X @tab X
779@item QT IMA ADPCM @tab @tab X
780@item 4X IMA ADPCM @tab @tab X
d4e437df 781@item G.726 ADPCM @tab X @tab X
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782@item Duck DK3 IMA ADPCM @tab @tab X
783@tab used in some Sega Saturn console games
784@item Duck DK4 IMA ADPCM @tab @tab X
785@tab used in some Sega Saturn console games
2fdf638b 786@item Westwood Studios IMA ADPCM @tab @tab X
42cad81a 787@tab used in Westwood Studios games like Command and Conquer
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788@item SMJPEG IMA ADPCM @tab @tab X
789@tab used in certain Loki game ports
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790@item CD-ROM XA ADPCM @tab @tab X
791@item CRI ADX ADPCM @tab X @tab X
792@tab used in Sega Dreamcast games
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793@item Electronic Arts ADPCM @tab @tab X
794@tab used in various EA titles
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795@item RA144 @tab @tab X
796@tab Real 14400 bit/s codec
797@item RA288 @tab @tab X
798@tab Real 28800 bit/s codec
799@item AMR-NB @tab X @tab X
800@tab supported through an external library
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801@item AMR-WB @tab X @tab X
802@tab supported through an external library
2eb5d024 803@item DV audio @tab @tab X
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804@item Id RoQ DPCM @tab @tab X
805@tab used in Quake III, Jedi Knight 2, other computer games
806@item Interplay MVE DPCM @tab @tab X
807@tab used in various Interplay computer games
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808@item Xan DPCM @tab @tab X
809@tab used in Origin's Wing Commander IV AVI files
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810@item Apple MACE 3 @tab @tab X
811@item Apple MACE 6 @tab @tab X
f8d58f4d 812@item FLAC @tab @tab X
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813@end multitable
814
815@code{X} means that the encoding (resp. decoding) is supported.
816
817@code{I} means that an integer only version is available too (ensures highest
818performances on systems without hardware floating point support).
819
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820@chapter Platform Specific information
821
822@section Linux
823
824ffmpeg should be compiled with at least GCC 2.95.3. GCC 3.2 is the
6bf40f39 825preferred compiler now for ffmpeg. All future optimizations will depend on
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826features only found in GCC 3.2.
827
828@section BSD
829
830@section Windows
831
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832@subsection Native Windows compilation
833
834@itemize
835@item Install the current versions of MSYS and MinGW from
836@url{http://www.mingw.org/}. You can find detailed installation
837instructions in the download section and the FAQ.
838
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839@item If you want to test the FFmpeg Simple Media Player, also download
840the MinGW development library of SDL 1.2.x
841(@file{SDL-devel-1.2.x-mingw32.tar.gz}) from
842@url{http://www.libsdl.org}. Unpack it in a temporary place, and
843unpack the archive @file{i386-mingw32msvc.tar.gz} in the MinGW tool
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844directory. Edit the @file{sdl-config} script so that it gives the
845correct SDL directory when invoked.
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846
847@item Extract the current version of FFmpeg (the latest release version or the current CVS snapshot whichever is recommended).
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848
849@item Start the MSYS shell (file @file{msys.bat}).
850
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851@item Change to the FFMPEG directory and follow
852 the instructions of how to compile ffmpeg (file
853@file{INSTALL}). Usually, launching @file{./configure} and @file{make}
854suffices. If you have problems using SDL, verify that
855@file{sdl-config} can be launched from the MSYS command line.
856
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857@item You can install FFmpeg in @file{Program Files/FFmpeg} by typing @file{make install}. Don't forget to copy @file{SDL.dll} at the place you launch
858@file{ffplay}.
50f52fcd 859
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860@end itemize
861
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862Notes:
863@itemize
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865@item The target @file{make wininstaller} can be used to create a
866Nullsoft based Windows installer for FFmpeg and FFplay. @file{SDL.dll}
867must be copied in the ffmpeg directory in order to build the
868installer.
869
870@item By using @code{./configure --enable-shared} when configuring ffmpeg,
871you can build @file{avcodec.dll} and @file{avformat.dll}. With
872@code{make install} you install the FFmpeg DLLs and the associated
873headers in @file{Program Files/FFmpeg}.
874
875@item Visual C++ compatibility: if you used @code{./configure --enable-shared}
876when configuring FFmpeg, then FFmpeg tries to use the Microsoft Visual
877C++ @code{lib} tool to build @code{avcodec.lib} and
878@code{avformat.lib}. With these libraries, you can link your Visual C++
879code directly with the FFmpeg DLLs.
880
881@end itemize
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882
883@subsection Cross compilation for Windows with Linux
884
885You must use the MinGW cross compilation tools available at
886@url{http://www.mingw.org/}.
887
888Then configure ffmpeg with the following options:
889@example
890./configure --enable-mingw32 --cross-prefix=i386-mingw32msvc-
891@end example
892(you can change the cross-prefix according to the prefix choosen for the
893MinGW tools).
894
895Then you can easily test ffmpeg with wine
896(@url{http://www.winehq.com/}).
897
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898@section MacOS X
899
900@section BeOS
901
902The configure script should guess the configuration itself.
903Networking support is currently not finished.
904errno issues fixed by Andrew Bachmann.
905
906Old stuff:
907
908