Opens files using ffmpeg and nothing else. May be frame accurate on good days. The source is MIT licensed and can be obtained from "http://svn.aegisub.net/trunk/aegisub/FFmpegSource2/". The precompiled binary is GPL licensed. If you are religious you may consider this the second coming.
FFIndex(string source, string cachefile = source + ".ffindex", int indexmask = 0, int dumpmask = 0, string audiofile = source, bool overwrite = false)
Used to invoke indexing separately and to write audio tracks to disk as wave64 files
FFVideoSource(string source, int track, bool cache = true, string cachefile = source + ".ffindex", int fpsnum = -1, int fpsden = 1, string pp, int threads = -1, string timecodes, int seekmode = 1)
Opens video, will invoke indexing with the defaults if no preexisting index is found
FFAudioSource(string source, int track, bool cache = true, string cachefile = source + ".ffindex")
Opens audio, if an index already exists it needs to contain a suitable audio index or empty audio will be returned, will invoke indexing with the defaults if no preexisting index is found
FFPP(clip, string pp)
Separate postprocessing which also seems to include a few simple deinterlacers
SWScale(clip, width = -1, height = -1, resizer = "BICUBIC", colorspace = "")
Separate postprocessing which also seems to include a few simple deinterlacers
source: Source file.
indexmask & dumpmask: Which audio tracks to index/write to disk. Dumping a track also implies indexing since the same work has to be done anyway. It is a binary mask meaning that 7 corresponds to writing tracks 1-3. Non-audio tracks are ignored. -1 writes all tracks.
audiofile: The base name to use for the decoded audio. Track number and delay is appended.
overwrite: Forces reindexing even if a valid index already exists. May be useful for trackmask changes or testing.
track: Track number as seen by the relevant demuxer, starts from 0, -1 means it will pick the first suitable track.
fpsnum & fpsden: For VFR -> CFR conversion. Setting fpsnum <= 0 means a 1:1 relation with the encoded frames.
timecodes: File to output timecodes to, if the file exists it will be overwritten.
cache: Write indexing information to a file for later use. This setting does not control if the video index is loaded which it always is if it exists.
cachefile Where to write the cache information.
pp: See the table below for a full description, an empty string means no processing. It is recommended to avoid the autoq option since it's currently unknown what effect it will have on the processing.
threads: Sets the number of decoder threads used. Defaults to the number of cpus reported by windows. Ignored by lavc if the used decoder doesn't implement it.
seekmode:
Force how seeking is handled, has no effect on matroska files which always use the equivalent of seekmode=1
-1: linear access without rewind, will throw an error if each successive requested frame number isn't bigger than the last one, only intended for opening images but might work on well with some obscure video format
0: linear access, the definition of slow but should make some formats "usable"
1: safe normal, bases seeking decisions on the reported keyframe positions
2: unsafe normal, same as 1 but no error will be thrown if the exact destination has to be guessed
3: aggressive, seek in the forward direction even if no closer keyframe is known to exist, only useful for testing and containers where avformat doesn't report keyframes properly
width & height: Width and height to resize to. Value below or equal to 0 is the same as specifying the input dimensions.
resizer: Selects the resizer used for resampling the chroma planes and normal resizing. The available methods are: FAST_BILINEAR, BILINEAR, BICUBIC, X, POINT, AREA, BICUBLIN, GAUSS, SINC, LANCZOS and SPLINE.
colorspace: The colorspace to convert to. The names are YV12, YUY2, RGB24, RGB32 and the empty string for same as input.
FFSAR_NUM, FFSAR_DEN, FFSAR: The playback aspect ratio specified by the container. FFSAR_NUM and FFSAR_DEN make up the rational number of the ratio and FFSAR is only provided for convenience.
FFCROP_LEFT, FFCROP_RIGHT, FFCROP_TOP, FFCROP_BOTTOM: The on playback cropping specified by the container.
FFPICT_TYPE: The picture type of the most recently requested frame. Use after_frame=true in Avisynth's conditional scripting for proper results. The FFmpeg source definition of the numbers:
FF_I_TYPE 1 ///< Intra FF_P_TYPE 2 ///< Predicted FF_B_TYPE 3 ///< Bi-dir predicted FF_S_TYPE 4 ///< S(GMC)-VOP MPEG4 FF_SI_TYPE 5 ///< Switching Intra FF_SP_TYPE 6 ///< Switching Predicted FF_BI_TYPE 7
Available postprocessing filters:
Filters Options
short long name short long option Description
* * a autoq CPU power dependent enabler
c chrom chrominance filtering enabled
y nochrom chrominance filtering disabled
n noluma luma filtering disabled
hb hdeblock (2 threshold) horizontal deblocking filter
1. difference factor: default=32, higher -> more deblocking
2. flatness threshold: default=39, lower -> more deblocking
the h & v deblocking filters share these
so you can't set different thresholds for h / v
vb vdeblock (2 threshold) vertical deblocking filter
ha hadeblock (2 threshold) horizontal deblocking filter
va vadeblock (2 threshold) vertical deblocking filter
h1 x1hdeblock experimental h deblock filter 1
v1 x1vdeblock experimental v deblock filter 1
dr dering deringing filter
al autolevels automatic brightness / contrast
f fullyrange stretch luminance to (0..255)
lb linblenddeint linear blend deinterlacer
li linipoldeint linear interpolating deinterlace
ci cubicipoldeint cubic interpolating deinterlacer
md mediandeint median deinterlacer
fd ffmpegdeint ffmpeg deinterlacer
l5 lowpass5 FIR lowpass deinterlacer
de default hb:a,vb:a,dr:a
fa fast h1:a,v1:a,dr:a
ac ha:a:128:7,va:a,dr:a
tn tmpnoise (3 threshold) temporal noise reducer
1. <= 2. <= 3. larger -> stronger filtering
fq forceQuant force quantizer
Usage:
[:
zlib from http://www.zlib.net/
FFmpeg svn from http://ffmpeg.mplayerhq.hu/
Required FFmpeg Configuration: ./configure --enable-memalign-hack --enable-gpl --enable-postproc
Suggested Additional Options: --enable-w32threads --disable-encoders --disable-muxers --disable-network --disable-debug
Note that --enable-w32threads is required for multithreaded decoding to work.