mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-28 09:19:41 +03:00
ffmpeg: cleanup
git-svn-id: svn://kolibrios.org@4369 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
parent
122a2a0bd0
commit
59eca36556
@ -1,275 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "FFMPEG-BITSTREAM-FILTERS 1"
|
||||
.TH FFMPEG-BITSTREAM-FILTERS 1 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
ffmpeg\-bitstream\-filters \- FFmpeg bitstream filters
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
This document describes the bitstream filters provided by the
|
||||
libavcodec library.
|
||||
.PP
|
||||
A bitstream filter operates on the encoded stream data, and performs
|
||||
bitstream level modifications without performing decoding.
|
||||
.SH "BITSTREAM FILTERS"
|
||||
.IX Header "BITSTREAM FILTERS"
|
||||
When you configure your FFmpeg build, all the supported bitstream
|
||||
filters are enabled by default. You can list all available ones using
|
||||
the configure option \f(CW\*(C`\-\-list\-bsfs\*(C'\fR.
|
||||
.PP
|
||||
You can disable all the bitstream filters using the configure option
|
||||
\&\f(CW\*(C`\-\-disable\-bsfs\*(C'\fR, and selectively enable any bitstream filter using
|
||||
the option \f(CW\*(C`\-\-enable\-bsf=BSF\*(C'\fR, or you can disable a particular
|
||||
bitstream filter using the option \f(CW\*(C`\-\-disable\-bsf=BSF\*(C'\fR.
|
||||
.PP
|
||||
The option \f(CW\*(C`\-bsfs\*(C'\fR of the ff* tools will display the list of
|
||||
all the supported bitstream filters included in your build.
|
||||
.PP
|
||||
Below is a description of the currently available bitstream filters.
|
||||
.Sh "aac_adtstoasc"
|
||||
.IX Subsection "aac_adtstoasc"
|
||||
Convert \s-1MPEG\-2/4\s0 \s-1AAC\s0 \s-1ADTS\s0 to \s-1MPEG\-4\s0 Audio Specific Configuration
|
||||
bitstream filter.
|
||||
.PP
|
||||
This filter creates an \s-1MPEG\-4\s0 AudioSpecificConfig from an \s-1MPEG\-2/4\s0
|
||||
\&\s-1ADTS\s0 header and removes the \s-1ADTS\s0 header.
|
||||
.PP
|
||||
This is required for example when copying an \s-1AAC\s0 stream from a raw
|
||||
\&\s-1ADTS\s0 \s-1AAC\s0 container to a \s-1FLV\s0 or a \s-1MOV/MP4\s0 file.
|
||||
.Sh "chomp"
|
||||
.IX Subsection "chomp"
|
||||
Remove zero padding at the end of a packet.
|
||||
.Sh "dump_extra"
|
||||
.IX Subsection "dump_extra"
|
||||
Add extradata to the beginning of the filtered packets.
|
||||
.PP
|
||||
The additional argument specifies which packets should be filtered.
|
||||
It accepts the values:
|
||||
.IP "\fBa\fR" 4
|
||||
.IX Item "a"
|
||||
add extradata to all key packets, but only if \fIlocal_header\fR is
|
||||
set in the \fBflags2\fR codec context field
|
||||
.IP "\fBk\fR" 4
|
||||
.IX Item "k"
|
||||
add extradata to all key packets
|
||||
.IP "\fBe\fR" 4
|
||||
.IX Item "e"
|
||||
add extradata to all packets
|
||||
.PP
|
||||
If not specified it is assumed \fBk\fR.
|
||||
.PP
|
||||
For example the following \fBffmpeg\fR command forces a global
|
||||
header (thus disabling individual packet headers) in the H.264 packets
|
||||
generated by the \f(CW\*(C`libx264\*(C'\fR encoder, but corrects them by adding
|
||||
the header stored in extradata to the key packets:
|
||||
.PP
|
||||
.Vb 1
|
||||
\& ffmpeg -i INPUT -map 0 -flags:v +global_header -c:v libx264 -bsf:v dump_extra out.ts
|
||||
.Ve
|
||||
.Sh "h264_mp4toannexb"
|
||||
.IX Subsection "h264_mp4toannexb"
|
||||
Convert an H.264 bitstream from length prefixed mode to start code
|
||||
prefixed mode (as defined in the Annex B of the ITU-T H.264
|
||||
specification).
|
||||
.PP
|
||||
This is required by some streaming formats, typically the \s-1MPEG\-2\s0
|
||||
transport stream format (\*(L"mpegts\*(R").
|
||||
.PP
|
||||
For example to remux an \s-1MP4\s0 file containing an H.264 stream to mpegts
|
||||
format with \fBffmpeg\fR, you can use the command:
|
||||
.PP
|
||||
.Vb 1
|
||||
\& ffmpeg -i INPUT.mp4 -codec copy -bsf:v h264_mp4toannexb OUTPUT.ts
|
||||
.Ve
|
||||
.Sh "imx_dump_header"
|
||||
.IX Subsection "imx_dump_header"
|
||||
.Sh "mjpeg2jpeg"
|
||||
.IX Subsection "mjpeg2jpeg"
|
||||
Convert \s-1MJPEG/AVI1\s0 packets to full \s-1JPEG/JFIF\s0 packets.
|
||||
.PP
|
||||
\&\s-1MJPEG\s0 is a video codec wherein each video frame is essentially a
|
||||
\&\s-1JPEG\s0 image. The individual frames can be extracted without loss,
|
||||
e.g. by
|
||||
.PP
|
||||
.Vb 1
|
||||
\& ffmpeg -i ../some_mjpeg.avi -c:v copy frames_%d.jpg
|
||||
.Ve
|
||||
.PP
|
||||
Unfortunately, these chunks are incomplete \s-1JPEG\s0 images, because
|
||||
they lack the \s-1DHT\s0 segment required for decoding. Quoting from
|
||||
<\fBhttp://www.digitalpreservation.gov/formats/fdd/fdd000063.shtml\fR>:
|
||||
.PP
|
||||
Avery Lee, writing in the rec.video.desktop newsgroup in 2001,
|
||||
commented that \*(L"\s-1MJPEG\s0, or at least the \s-1MJPEG\s0 in AVIs having the
|
||||
\&\s-1MJPG\s0 fourcc, is restricted \s-1JPEG\s0 with a fixed \*(-- and *omitted* \*(--
|
||||
Huffman table. The \s-1JPEG\s0 must be YCbCr colorspace, it must be 4:2:2,
|
||||
and it must use basic Huffman encoding, not arithmetic or
|
||||
progressive. . . . You can indeed extract the \s-1MJPEG\s0 frames and
|
||||
decode them with a regular \s-1JPEG\s0 decoder, but you have to prepend
|
||||
the \s-1DHT\s0 segment to them, or else the decoder won't have any idea
|
||||
how to decompress the data. The exact table necessary is given in
|
||||
the OpenDML spec.\*(R"
|
||||
.PP
|
||||
This bitstream filter patches the header of frames extracted from an \s-1MJPEG\s0
|
||||
stream (carrying the \s-1AVI1\s0 header \s-1ID\s0 and lacking a \s-1DHT\s0 segment) to
|
||||
produce fully qualified \s-1JPEG\s0 images.
|
||||
.PP
|
||||
.Vb 3
|
||||
\& ffmpeg -i mjpeg-movie.avi -c:v copy -bsf:v mjpeg2jpeg frame_%d.jpg
|
||||
\& exiftran -i -9 frame*.jpg
|
||||
\& ffmpeg -i frame_%d.jpg -c:v copy rotated.avi
|
||||
.Ve
|
||||
.Sh "mjpega_dump_header"
|
||||
.IX Subsection "mjpega_dump_header"
|
||||
.Sh "movsub"
|
||||
.IX Subsection "movsub"
|
||||
.Sh "mp3_header_compress"
|
||||
.IX Subsection "mp3_header_compress"
|
||||
.Sh "mp3_header_decompress"
|
||||
.IX Subsection "mp3_header_decompress"
|
||||
.Sh "noise"
|
||||
.IX Subsection "noise"
|
||||
.Sh "remove_extra"
|
||||
.IX Subsection "remove_extra"
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibavcodec\fR\|(3)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@ -1,410 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "FFMPEG-RESAMPLER 1"
|
||||
.TH FFMPEG-RESAMPLER 1 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
ffmpeg\-resampler \- FFmpeg Resampler
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
The FFmpeg resampler provides a high-level interface to the
|
||||
libswresample library audio resampling utilities. In particular it
|
||||
allows to perform audio resampling, audio channel layout rematrixing,
|
||||
and convert audio format and packing layout.
|
||||
.SH "RESAMPLER OPTIONS"
|
||||
.IX Header "RESAMPLER OPTIONS"
|
||||
The audio resampler supports the following named options.
|
||||
.PP
|
||||
Options may be set by specifying \-\fIoption\fR \fIvalue\fR in the
|
||||
FFmpeg tools, \fIoption\fR=\fIvalue\fR for the aresample filter,
|
||||
by setting the value explicitly in the
|
||||
\&\f(CW\*(C`SwrContext\*(C'\fR options or using the \fIlibavutil/opt.h\fR \s-1API\s0 for
|
||||
programmatic use.
|
||||
.IP "\fBich, in_channel_count\fR" 4
|
||||
.IX Item "ich, in_channel_count"
|
||||
Set the number of input channels. Default value is 0. Setting this
|
||||
value is not mandatory if the corresponding channel layout
|
||||
\&\fBin_channel_layout\fR is set.
|
||||
.IP "\fBoch, out_channel_count\fR" 4
|
||||
.IX Item "och, out_channel_count"
|
||||
Set the number of output channels. Default value is 0. Setting this
|
||||
value is not mandatory if the corresponding channel layout
|
||||
\&\fBout_channel_layout\fR is set.
|
||||
.IP "\fBuch, used_channel_count\fR" 4
|
||||
.IX Item "uch, used_channel_count"
|
||||
Set the number of used input channels. Default value is 0. This option is
|
||||
only used for special remapping.
|
||||
.IP "\fBisr, in_sample_rate\fR" 4
|
||||
.IX Item "isr, in_sample_rate"
|
||||
Set the input sample rate. Default value is 0.
|
||||
.IP "\fBosr, out_sample_rate\fR" 4
|
||||
.IX Item "osr, out_sample_rate"
|
||||
Set the output sample rate. Default value is 0.
|
||||
.IP "\fBisf, in_sample_fmt\fR" 4
|
||||
.IX Item "isf, in_sample_fmt"
|
||||
Specify the input sample format. It is set by default to \f(CW\*(C`none\*(C'\fR.
|
||||
.IP "\fBosf, out_sample_fmt\fR" 4
|
||||
.IX Item "osf, out_sample_fmt"
|
||||
Specify the output sample format. It is set by default to \f(CW\*(C`none\*(C'\fR.
|
||||
.IP "\fBtsf, internal_sample_fmt\fR" 4
|
||||
.IX Item "tsf, internal_sample_fmt"
|
||||
Set the internal sample format. Default value is \f(CW\*(C`none\*(C'\fR.
|
||||
This will automatically be chosen when it is not explicitly set.
|
||||
.IP "\fBicl, in_channel_layout\fR" 4
|
||||
.IX Item "icl, in_channel_layout"
|
||||
.PD 0
|
||||
.IP "\fBocl, out_channel_layout\fR" 4
|
||||
.IX Item "ocl, out_channel_layout"
|
||||
.PD
|
||||
Set the input/output channel layout.
|
||||
.Sp
|
||||
See the Channel Layout section in the \fIffmpeg\-utils\fR\|(1) manual
|
||||
for the required syntax.
|
||||
.IP "\fBclev, center_mix_level\fR" 4
|
||||
.IX Item "clev, center_mix_level"
|
||||
Set the center mix level. It is a value expressed in deciBel, and must be
|
||||
in the interval [\-32,32].
|
||||
.IP "\fBslev, surround_mix_level\fR" 4
|
||||
.IX Item "slev, surround_mix_level"
|
||||
Set the surround mix level. It is a value expressed in deciBel, and must
|
||||
be in the interval [\-32,32].
|
||||
.IP "\fBlfe_mix_level\fR" 4
|
||||
.IX Item "lfe_mix_level"
|
||||
Set \s-1LFE\s0 mix into non \s-1LFE\s0 level. It is used when there is a \s-1LFE\s0 input but no
|
||||
\&\s-1LFE\s0 output. It is a value expressed in deciBel, and must
|
||||
be in the interval [\-32,32].
|
||||
.IP "\fBrmvol, rematrix_volume\fR" 4
|
||||
.IX Item "rmvol, rematrix_volume"
|
||||
Set rematrix volume. Default value is 1.0.
|
||||
.IP "\fBrematrix_maxval\fR" 4
|
||||
.IX Item "rematrix_maxval"
|
||||
Set maximum output value for rematrixing.
|
||||
This can be used to prevent clipping vs. preventing volumn reduction
|
||||
A value of 1.0 prevents cliping.
|
||||
.IP "\fBflags, swr_flags\fR" 4
|
||||
.IX Item "flags, swr_flags"
|
||||
Set flags used by the converter. Default value is 0.
|
||||
.Sp
|
||||
It supports the following individual flags:
|
||||
.RS 4
|
||||
.IP "\fBres\fR" 4
|
||||
.IX Item "res"
|
||||
force resampling, this flag forces resampling to be used even when the
|
||||
input and output sample rates match.
|
||||
.RE
|
||||
.RS 4
|
||||
.RE
|
||||
.IP "\fBdither_scale\fR" 4
|
||||
.IX Item "dither_scale"
|
||||
Set the dither scale. Default value is 1.
|
||||
.IP "\fBdither_method\fR" 4
|
||||
.IX Item "dither_method"
|
||||
Set dither method. Default value is 0.
|
||||
.Sp
|
||||
Supported values:
|
||||
.RS 4
|
||||
.IP "\fBrectangular\fR" 4
|
||||
.IX Item "rectangular"
|
||||
select rectangular dither
|
||||
.IP "\fBtriangular\fR" 4
|
||||
.IX Item "triangular"
|
||||
select triangular dither
|
||||
.IP "\fBtriangular_hp\fR" 4
|
||||
.IX Item "triangular_hp"
|
||||
select triangular dither with high pass
|
||||
.IP "\fBlipshitz\fR" 4
|
||||
.IX Item "lipshitz"
|
||||
select lipshitz noise shaping dither
|
||||
.IP "\fBshibata\fR" 4
|
||||
.IX Item "shibata"
|
||||
select shibata noise shaping dither
|
||||
.IP "\fBlow_shibata\fR" 4
|
||||
.IX Item "low_shibata"
|
||||
select low shibata noise shaping dither
|
||||
.IP "\fBhigh_shibata\fR" 4
|
||||
.IX Item "high_shibata"
|
||||
select high shibata noise shaping dither
|
||||
.IP "\fBf_weighted\fR" 4
|
||||
.IX Item "f_weighted"
|
||||
select f\-weighted noise shaping dither
|
||||
.IP "\fBmodified_e_weighted\fR" 4
|
||||
.IX Item "modified_e_weighted"
|
||||
select modified-e-weighted noise shaping dither
|
||||
.IP "\fBimproved_e_weighted\fR" 4
|
||||
.IX Item "improved_e_weighted"
|
||||
select improved-e-weighted noise shaping dither
|
||||
.RE
|
||||
.RS 4
|
||||
.RE
|
||||
.IP "\fBresampler\fR" 4
|
||||
.IX Item "resampler"
|
||||
Set resampling engine. Default value is swr.
|
||||
.Sp
|
||||
Supported values:
|
||||
.RS 4
|
||||
.IP "\fBswr\fR" 4
|
||||
.IX Item "swr"
|
||||
select the native \s-1SW\s0 Resampler; filter options precision and cheby are not
|
||||
applicable in this case.
|
||||
.IP "\fBsoxr\fR" 4
|
||||
.IX Item "soxr"
|
||||
select the SoX Resampler (where available); compensation, and filter options
|
||||
filter_size, phase_shift, filter_type & kaiser_beta, are not applicable in this
|
||||
case.
|
||||
.RE
|
||||
.RS 4
|
||||
.RE
|
||||
.IP "\fBfilter_size\fR" 4
|
||||
.IX Item "filter_size"
|
||||
For swr only, set resampling filter size, default value is 32.
|
||||
.IP "\fBphase_shift\fR" 4
|
||||
.IX Item "phase_shift"
|
||||
For swr only, set resampling phase shift, default value is 10, and must be in
|
||||
the interval [0,30].
|
||||
.IP "\fBlinear_interp\fR" 4
|
||||
.IX Item "linear_interp"
|
||||
Use Linear Interpolation if set to 1, default value is 0.
|
||||
.IP "\fBcutoff\fR" 4
|
||||
.IX Item "cutoff"
|
||||
Set cutoff frequency (swr: 6dB point; soxr: 0dB point) ratio; must be a float
|
||||
value between 0 and 1. Default value is 0.97 with swr, and 0.91 with soxr
|
||||
(which, with a sample-rate of 44100, preserves the entire audio band to 20kHz).
|
||||
.IP "\fBprecision\fR" 4
|
||||
.IX Item "precision"
|
||||
For soxr only, the precision in bits to which the resampled signal will be
|
||||
calculated. The default value of 20 (which, with suitable dithering, is
|
||||
appropriate for a destination bit-depth of 16) gives SoX's 'High Quality'; a
|
||||
value of 28 gives SoX's 'Very High Quality'.
|
||||
.IP "\fBcheby\fR" 4
|
||||
.IX Item "cheby"
|
||||
For soxr only, selects passband rolloff none (Chebyshev) & higher-precision
|
||||
approximation for 'irrational' ratios. Default value is 0.
|
||||
.IP "\fBasync\fR" 4
|
||||
.IX Item "async"
|
||||
For swr only, simple 1 parameter audio sync to timestamps using stretching,
|
||||
squeezing, filling and trimming. Setting this to 1 will enable filling and
|
||||
trimming, larger values represent the maximum amount in samples that the data
|
||||
may be stretched or squeezed for each second.
|
||||
Default value is 0, thus no compensation is applied to make the samples match
|
||||
the audio timestamps.
|
||||
.IP "\fBfirst_pts\fR" 4
|
||||
.IX Item "first_pts"
|
||||
For swr only, assume the first pts should be this value. The time unit is 1 / sample rate.
|
||||
This allows for padding/trimming at the start of stream. By default, no
|
||||
assumption is made about the first frame's expected pts, so no padding or
|
||||
trimming is done. For example, this could be set to 0 to pad the beginning with
|
||||
silence if an audio stream starts after the video stream or to trim any samples
|
||||
with a negative pts due to encoder delay.
|
||||
.IP "\fBmin_comp\fR" 4
|
||||
.IX Item "min_comp"
|
||||
For swr only, set the minimum difference between timestamps and audio data (in
|
||||
seconds) to trigger stretching/squeezing/filling or trimming of the
|
||||
data to make it match the timestamps. The default is that
|
||||
stretching/squeezing/filling and trimming is disabled
|
||||
(\fBmin_comp\fR = \f(CW\*(C`FLT_MAX\*(C'\fR).
|
||||
.IP "\fBmin_hard_comp\fR" 4
|
||||
.IX Item "min_hard_comp"
|
||||
For swr only, set the minimum difference between timestamps and audio data (in
|
||||
seconds) to trigger adding/dropping samples to make it match the
|
||||
timestamps. This option effectively is a threshold to select between
|
||||
hard (trim/fill) and soft (squeeze/stretch) compensation. Note that
|
||||
all compensation is by default disabled through \fBmin_comp\fR.
|
||||
The default is 0.1.
|
||||
.IP "\fBcomp_duration\fR" 4
|
||||
.IX Item "comp_duration"
|
||||
For swr only, set duration (in seconds) over which data is stretched/squeezed
|
||||
to make it match the timestamps. Must be a non-negative double float value,
|
||||
default value is 1.0.
|
||||
.IP "\fBmax_soft_comp\fR" 4
|
||||
.IX Item "max_soft_comp"
|
||||
For swr only, set maximum factor by which data is stretched/squeezed to make it
|
||||
match the timestamps. Must be a non-negative double float value, default value
|
||||
is 0.
|
||||
.IP "\fBmatrix_encoding\fR" 4
|
||||
.IX Item "matrix_encoding"
|
||||
Select matrixed stereo encoding.
|
||||
.Sp
|
||||
It accepts the following values:
|
||||
.RS 4
|
||||
.IP "\fBnone\fR" 4
|
||||
.IX Item "none"
|
||||
select none
|
||||
.IP "\fBdolby\fR" 4
|
||||
.IX Item "dolby"
|
||||
select Dolby
|
||||
.IP "\fBdplii\fR" 4
|
||||
.IX Item "dplii"
|
||||
select Dolby Pro Logic \s-1II\s0
|
||||
.RE
|
||||
.RS 4
|
||||
.Sp
|
||||
Default value is \f(CW\*(C`none\*(C'\fR.
|
||||
.RE
|
||||
.IP "\fBfilter_type\fR" 4
|
||||
.IX Item "filter_type"
|
||||
For swr only, select resampling filter type. This only affects resampling
|
||||
operations.
|
||||
.Sp
|
||||
It accepts the following values:
|
||||
.RS 4
|
||||
.IP "\fBcubic\fR" 4
|
||||
.IX Item "cubic"
|
||||
select cubic
|
||||
.IP "\fBblackman_nuttall\fR" 4
|
||||
.IX Item "blackman_nuttall"
|
||||
select Blackman Nuttall Windowed Sinc
|
||||
.IP "\fBkaiser\fR" 4
|
||||
.IX Item "kaiser"
|
||||
select Kaiser Windowed Sinc
|
||||
.RE
|
||||
.RS 4
|
||||
.RE
|
||||
.IP "\fBkaiser_beta\fR" 4
|
||||
.IX Item "kaiser_beta"
|
||||
For swr only, set Kaiser Window Beta value. Must be an integer in the
|
||||
interval [2,16], default value is 9.
|
||||
.IP "\fBoutput_sample_bits\fR" 4
|
||||
.IX Item "output_sample_bits"
|
||||
For swr only, set number of used output sample bits for dithering. Must be an integer in the
|
||||
interval [0,64], default value is 0, which means it's not used.
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibswresample\fR\|(3)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
@ -1,268 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "FFMPEG-SCALER 1"
|
||||
.TH FFMPEG-SCALER 1 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
ffmpeg\-scaler \- FFmpeg video scaling and pixel format converter
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
The FFmpeg rescaler provides a high-level interface to the libswscale
|
||||
library image conversion utilities. In particular it allows to perform
|
||||
image rescaling and pixel format conversion.
|
||||
.SH "SCALER OPTIONS"
|
||||
.IX Header "SCALER OPTIONS"
|
||||
The video scaler supports the following named options.
|
||||
.PP
|
||||
Options may be set by specifying \-\fIoption\fR \fIvalue\fR in the
|
||||
FFmpeg tools. For programmatic use, they can be set explicitly in the
|
||||
\&\f(CW\*(C`SwsContext\*(C'\fR options or through the \fIlibavutil/opt.h\fR \s-1API\s0.
|
||||
.IP "\fBsws_flags\fR" 4
|
||||
.IX Item "sws_flags"
|
||||
Set the scaler flags. This is also used to set the scaling
|
||||
algorithm. Only a single algorithm should be selected.
|
||||
.Sp
|
||||
It accepts the following values:
|
||||
.RS 4
|
||||
.IP "\fBfast_bilinear\fR" 4
|
||||
.IX Item "fast_bilinear"
|
||||
Select fast bilinear scaling algorithm.
|
||||
.IP "\fBbilinear\fR" 4
|
||||
.IX Item "bilinear"
|
||||
Select bilinear scaling algorithm.
|
||||
.IP "\fBbicubic\fR" 4
|
||||
.IX Item "bicubic"
|
||||
Select bicubic scaling algorithm.
|
||||
.IP "\fBexperimental\fR" 4
|
||||
.IX Item "experimental"
|
||||
Select experimental scaling algorithm.
|
||||
.IP "\fBneighbor\fR" 4
|
||||
.IX Item "neighbor"
|
||||
Select nearest neighbor rescaling algorithm.
|
||||
.IP "\fBarea\fR" 4
|
||||
.IX Item "area"
|
||||
Select averaging area rescaling algorithm.
|
||||
.IP "\fBbicubiclin\fR" 4
|
||||
.IX Item "bicubiclin"
|
||||
Select bicubic scaling algorithm for the luma component, bilinear for
|
||||
chroma components.
|
||||
.IP "\fBgauss\fR" 4
|
||||
.IX Item "gauss"
|
||||
Select Gaussian rescaling algorithm.
|
||||
.IP "\fBsinc\fR" 4
|
||||
.IX Item "sinc"
|
||||
Select sinc rescaling algorithm.
|
||||
.IP "\fBlanczos\fR" 4
|
||||
.IX Item "lanczos"
|
||||
Select lanczos rescaling algorithm.
|
||||
.IP "\fBspline\fR" 4
|
||||
.IX Item "spline"
|
||||
Select natural bicubic spline rescaling algorithm.
|
||||
.IP "\fBprint_info\fR" 4
|
||||
.IX Item "print_info"
|
||||
Enable printing/debug logging.
|
||||
.IP "\fBaccurate_rnd\fR" 4
|
||||
.IX Item "accurate_rnd"
|
||||
Enable accurate rounding.
|
||||
.IP "\fBfull_chroma_int\fR" 4
|
||||
.IX Item "full_chroma_int"
|
||||
Enable full chroma interpolation.
|
||||
.IP "\fBfull_chroma_inp\fR" 4
|
||||
.IX Item "full_chroma_inp"
|
||||
Select full chroma input.
|
||||
.IP "\fBbitexact\fR" 4
|
||||
.IX Item "bitexact"
|
||||
Enable bitexact output.
|
||||
.RE
|
||||
.RS 4
|
||||
.RE
|
||||
.IP "\fBsrcw\fR" 4
|
||||
.IX Item "srcw"
|
||||
Set source width.
|
||||
.IP "\fBsrch\fR" 4
|
||||
.IX Item "srch"
|
||||
Set source height.
|
||||
.IP "\fBdstw\fR" 4
|
||||
.IX Item "dstw"
|
||||
Set destination width.
|
||||
.IP "\fBdsth\fR" 4
|
||||
.IX Item "dsth"
|
||||
Set destination height.
|
||||
.IP "\fBsrc_format\fR" 4
|
||||
.IX Item "src_format"
|
||||
Set source pixel format (must be expressed as an integer).
|
||||
.IP "\fBdst_format\fR" 4
|
||||
.IX Item "dst_format"
|
||||
Set destination pixel format (must be expressed as an integer).
|
||||
.IP "\fBsrc_range\fR" 4
|
||||
.IX Item "src_range"
|
||||
Select source range.
|
||||
.IP "\fBdst_range\fR" 4
|
||||
.IX Item "dst_range"
|
||||
Select destination range.
|
||||
.IP "\fBparam0, param1\fR" 4
|
||||
.IX Item "param0, param1"
|
||||
Set scaling algorithm parameters. The specified values are specific of
|
||||
some scaling algorithms and ignored by others. The specified values
|
||||
are floating point number values.
|
||||
.IP "\fBsws_dither\fR" 4
|
||||
.IX Item "sws_dither"
|
||||
Set the dithering algorithm. Accepts one of the following
|
||||
values. Default value is \fBauto\fR.
|
||||
.RS 4
|
||||
.IP "\fBauto\fR" 4
|
||||
.IX Item "auto"
|
||||
automatic choice
|
||||
.IP "\fBnone\fR" 4
|
||||
.IX Item "none"
|
||||
no dithering
|
||||
.IP "\fBbayer\fR" 4
|
||||
.IX Item "bayer"
|
||||
bayer dither
|
||||
.IP "\fBed\fR" 4
|
||||
.IX Item "ed"
|
||||
error diffusion dither
|
||||
.RE
|
||||
.RS 4
|
||||
.RE
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibswscale\fR\|(3)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
File diff suppressed because it is too large
Load Diff
@ -1,159 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "doc::libavcodec 3"
|
||||
.TH doc::libavcodec 3 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
libavcodec \- media streams decoding and encoding library
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
The libavcodec library provides a generic encoding/decoding framework
|
||||
and contains multiple decoders and encoders for audio, video and
|
||||
subtitle streams, and several bitstream filters.
|
||||
.PP
|
||||
The shared architecture provides various services ranging from bit
|
||||
stream I/O to \s-1DSP\s0 optimizations, and makes it suitable for
|
||||
implementing robust and fast codecs as well as for experimentation.
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
|
||||
\&\fIffmpeg\-codecs\fR\|(1), \fIffmpeg\-bitstream\-filters\fR\|(1),
|
||||
\&\fIlibavutil\fR\|(3)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
@ -1,156 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "doc::libavdevice 3"
|
||||
.TH doc::libavdevice 3 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
libavdevice \- multimedia device handling library
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
The libavdevice library provides a generic framework for grabbing from
|
||||
and rendering to many common multimedia input/output devices, and
|
||||
supports several input and output devices, including Video4Linux2,
|
||||
VfW, DShow, and \s-1ALSA\s0.
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
|
||||
\&\fIffmpeg\-devices\fR\|(1),
|
||||
\&\fIlibavutil\fR\|(3), \fIlibavcodec\fR\|(3), \fIlibavformat\fR\|(3)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
@ -1,159 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "doc::libavformat 3"
|
||||
.TH doc::libavformat 3 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
libavformat \- multimedia muxing and demuxing library
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
The libavformat library provides a generic framework for multiplexing
|
||||
and demultiplexing (muxing and demuxing) audio, video and subtitle
|
||||
streams. It encompasses multiple muxers and demuxers for multimedia
|
||||
container formats.
|
||||
.PP
|
||||
It also supports several input and output protocols to access a media
|
||||
resource.
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
|
||||
\&\fIffmpeg\-formats\fR\|(1), \fIffmpeg\-protocols\fR\|(1),
|
||||
\&\fIlibavutil\fR\|(3), \fIlibavcodec\fR\|(3)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
@ -1,156 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "doc::libavutil 3"
|
||||
.TH doc::libavutil 3 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
libavutil \- multimedia\-biased utility library
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
The libavutil library is a utility library to aid portable
|
||||
multimedia programming. It contains safe portable string functions,
|
||||
random number generators, data structures, additional mathematics
|
||||
functions, cryptography and multimedia related functionality (like
|
||||
enumerations for pixel and sample formats).
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
|
||||
\&\fIffmpeg\-utils\fR\|(1)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
@ -1,176 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "doc::libswresample 3"
|
||||
.TH doc::libswresample 3 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
libswresample \- audio resampling library
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
The libswresample library performs highly optimized audio resampling,
|
||||
rematrixing and sample format conversion operations.
|
||||
.PP
|
||||
Specifically, this library performs the following conversions:
|
||||
.IP "\(bu" 4
|
||||
\&\fIResampling\fR: is the process of changing the audio rate, for
|
||||
example from a high sample rate of 44100Hz to 8000Hz. Audio
|
||||
conversion from high to low sample rate is a lossy process. Several
|
||||
resampling options and algorithms are available.
|
||||
.IP "\(bu" 4
|
||||
\&\fIFormat conversion\fR: is the process of converting the type of
|
||||
samples, for example from 16\-bit signed samples to unsigned 8\-bit or
|
||||
float samples. It also handles packing conversion, when passing from
|
||||
packed layout (all samples belonging to distinct channels interleaved
|
||||
in the same buffer), to planar layout (all samples belonging to the
|
||||
same channel stored in a dedicated buffer or \*(L"plane\*(R").
|
||||
.IP "\(bu" 4
|
||||
\&\fIRematrixing\fR: is the process of changing the channel layout, for
|
||||
example from stereo to mono. When the input channels cannot be mapped
|
||||
to the output streams, the process is lossy, since it involves
|
||||
different gain factors and mixing.
|
||||
.PP
|
||||
Various other audio conversions (e.g. stretching and padding) are
|
||||
enabled through dedicated options.
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
|
||||
\&\fIffmpeg\-resampler\fR\|(1),
|
||||
\&\fIlibavutil\fR\|(3)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
@ -1,170 +0,0 @@
|
||||
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
|
||||
.\"
|
||||
.\" Standard preamble:
|
||||
.\" ========================================================================
|
||||
.de Sh \" Subsection heading
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Vb \" Begin verbatim text
|
||||
.ft CW
|
||||
.nf
|
||||
.ne \\$1
|
||||
..
|
||||
.de Ve \" End verbatim text
|
||||
.ft R
|
||||
.fi
|
||||
..
|
||||
.\" Set up some character translations and predefined strings. \*(-- will
|
||||
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
|
||||
.\" double quote, and \*(R" will give a right double quote. | will give a
|
||||
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
|
||||
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
|
||||
.\" expand to `' in nroff, nothing in troff, for use with C<>.
|
||||
.tr \(*W-|\(bv\*(Tr
|
||||
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
|
||||
.ie n \{\
|
||||
. ds -- \(*W-
|
||||
. ds PI pi
|
||||
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
|
||||
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
|
||||
. ds L" ""
|
||||
. ds R" ""
|
||||
. ds C` ""
|
||||
. ds C' ""
|
||||
'br\}
|
||||
.el\{\
|
||||
. ds -- \|\(em\|
|
||||
. ds PI \(*p
|
||||
. ds L" ``
|
||||
. ds R" ''
|
||||
'br\}
|
||||
.\"
|
||||
.\" If the F register is turned on, we'll generate index entries on stderr for
|
||||
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
|
||||
.\" entries marked with X<> in POD. Of course, you'll have to process the
|
||||
.\" output yourself in some meaningful fashion.
|
||||
.if \nF \{\
|
||||
. de IX
|
||||
. tm Index:\\$1\t\\n%\t"\\$2"
|
||||
..
|
||||
. nr % 0
|
||||
. rr F
|
||||
.\}
|
||||
.\"
|
||||
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
|
||||
.\" way too many mistakes in technical documents.
|
||||
.hy 0
|
||||
.if n .na
|
||||
.\"
|
||||
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
|
||||
.\" Fear. Run. Save yourself. No user-serviceable parts.
|
||||
. \" fudge factors for nroff and troff
|
||||
.if n \{\
|
||||
. ds #H 0
|
||||
. ds #V .8m
|
||||
. ds #F .3m
|
||||
. ds #[ \f1
|
||||
. ds #] \fP
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
||||
. ds #V .6m
|
||||
. ds #F 0
|
||||
. ds #[ \&
|
||||
. ds #] \&
|
||||
.\}
|
||||
. \" simple accents for nroff and troff
|
||||
.if n \{\
|
||||
. ds ' \&
|
||||
. ds ` \&
|
||||
. ds ^ \&
|
||||
. ds , \&
|
||||
. ds ~ ~
|
||||
. ds /
|
||||
.\}
|
||||
.if t \{\
|
||||
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
||||
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
||||
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
||||
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
||||
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
||||
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
||||
.\}
|
||||
. \" troff and (daisy-wheel) nroff accents
|
||||
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
||||
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
||||
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
||||
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
||||
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
||||
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
||||
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
||||
.ds ae a\h'-(\w'a'u*4/10)'e
|
||||
.ds Ae A\h'-(\w'A'u*4/10)'E
|
||||
. \" corrections for vroff
|
||||
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
||||
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
||||
. \" for low resolution devices (crt and lpr)
|
||||
.if \n(.H>23 .if \n(.V>19 \
|
||||
\{\
|
||||
. ds : e
|
||||
. ds 8 ss
|
||||
. ds o a
|
||||
. ds d- d\h'-1'\(ga
|
||||
. ds D- D\h'-1'\(hy
|
||||
. ds th \o'bp'
|
||||
. ds Th \o'LP'
|
||||
. ds ae ae
|
||||
. ds Ae AE
|
||||
.\}
|
||||
.rm #[ #] #H #V #F C
|
||||
.\" ========================================================================
|
||||
.\"
|
||||
.IX Title "doc::libswscale 3"
|
||||
.TH doc::libswscale 3 "2013-12-14" " " " "
|
||||
.SH "NAME"
|
||||
libswscale \- video scaling and pixel format conversion library
|
||||
.SH "DESCRIPTION"
|
||||
.IX Header "DESCRIPTION"
|
||||
The libswscale library performs highly optimized image scaling and
|
||||
colorspace and pixel format conversion operations.
|
||||
.PP
|
||||
Specifically, this library performs the following conversions:
|
||||
.IP "\(bu" 4
|
||||
\&\fIRescaling\fR: is the process of changing the video size. Several
|
||||
rescaling options and algorithms are available. This is usually a
|
||||
lossy process.
|
||||
.IP "\(bu" 4
|
||||
\&\fIPixel format conversion\fR: is the process of converting the image
|
||||
format and colorspace of the image, for example from planar \s-1YUV420P\s0 to
|
||||
\&\s-1RGB24\s0 packed. It also handles packing conversion, that is converts
|
||||
from packed layout (all pixels belonging to distinct planes
|
||||
interleaved in the same buffer), to planar layout (all samples
|
||||
belonging to the same plane stored in a dedicated buffer or \*(L"plane\*(R").
|
||||
.Sp
|
||||
This is usually a lossy process in case the source and destination
|
||||
colorspaces differ.
|
||||
.SH "SEE ALSO"
|
||||
.IX Header "SEE ALSO"
|
||||
\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
|
||||
\&\fIffmpeg\-scaler\fR\|(1),
|
||||
\&\fIlibavutil\fR\|(3)
|
||||
.SH "AUTHORS"
|
||||
.IX Header "AUTHORS"
|
||||
The FFmpeg developers.
|
||||
.PP
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
\&\fBgit log\fR in the FFmpeg source directory, or browsing the
|
||||
online repository at <\fBhttp://source.ffmpeg.org\fR>.
|
||||
.PP
|
||||
Maintainers for the specific components are listed in the file
|
||||
\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
|
||||
Loading…
Reference in New Issue
Block a user