mirror of https://github.com/mpv-player/mpv
MPEG-X spelling
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14025 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
diego
parent
dc9851c0db
commit
72cb69a510
|
|
@ -183,7 +183,7 @@ DVD subtitles (SPU streams, VOBsub and Closed Captions).
|
|||
(MPlayer's Movie Encoder) is a simple movie encoder, designed to encode
|
||||
MPlayer-playable movies (see above) to other MPlayer-playable formats (see
|
||||
below).
|
||||
It encodes to MPEG4 (DivX/XviD), one of the libavcodec codecs and
|
||||
It encodes to MPEG-4 (DivX/XviD), one of the libavcodec codecs and
|
||||
PCM/\:MP3/\:VBRMP3 audio in 1, 2 or 3\ passes.
|
||||
Furthermore it has stream copying abilities, a powerful filter system (crop,
|
||||
expand, flip, postprocess, rotate, scale, noise, rgb/\:yuv conversion) and
|
||||
|
|
@ -2403,7 +2403,7 @@ Select the driver to use as source to overlay on top of X11.
|
|||
.TP
|
||||
.B xvmc (X11 with \-vc ffmpeg12mc only)
|
||||
Video output driver that uses the XvMC (X Video Motion Compensation)
|
||||
extension of XFree86 4.x to speed up MPEG1/\:2 and VCR2 decoding.
|
||||
extension of XFree86 4.x to speed up MPEG-1/2 and VCR2 decoding.
|
||||
.PD 0
|
||||
.RSs
|
||||
.IPs benchmark
|
||||
|
|
@ -3322,9 +3322,9 @@ This is not a bug, but a side effect of not decoding at full resolution.
|
|||
.br
|
||||
3: 1/8 resolution
|
||||
.REss
|
||||
.IPs "sb=<number> (MPEG2 only)"
|
||||
.IPs "sb=<number> (MPEG-2 only)"
|
||||
Skip the given number of macroblock rows at the bottom.
|
||||
.IPs "st=<number> (MPEG2 only)"
|
||||
.IPs "st=<number> (MPEG-2 only)"
|
||||
Skip the given number of macroblock rows at the top.
|
||||
.IPs vismv=<value>
|
||||
vismv:
|
||||
|
|
@ -3481,7 +3481,7 @@ Try divx4linux codec first, then fall back on others.
|
|||
.IPs "\-vc -divxds,-divx,"
|
||||
Skip Win32 DivX codecs.
|
||||
.IPs "\-vc ffmpeg12,mpeg12,"
|
||||
Try libavcodec's MPEG1/\:2 codec, then libmpeg2, then others.
|
||||
Try libavcodec's MPEG-1/2 codec, then libmpeg2, then others.
|
||||
.RE
|
||||
.PD 1
|
||||
.
|
||||
|
|
@ -3949,7 +3949,7 @@ You should see a red, green and blue stripe from top to bottom.
|
|||
.
|
||||
.TP
|
||||
.B lavc[=quality:fps]
|
||||
Fast software YV12 to MPEG1 conversion with libavcodec for use with DVB/\:DXR3.
|
||||
Fast software YV12 to MPEG-1 conversion with libavcodec for use with DVB/\:DXR3.
|
||||
Faster and of better quality than \-vf fame.
|
||||
.RSs
|
||||
.IPs quality
|
||||
|
|
@ -3964,7 +3964,7 @@ force output fps (float value) (default: 0, autodetect based on height)
|
|||
.
|
||||
.TP
|
||||
.B fame\ \ \
|
||||
Fast software YV12 to MPEG1 conversion with libfame for use with DVB/\:DXR3.
|
||||
Fast software YV12 to MPEG-1 conversion with libfame for use with DVB/\:DXR3.
|
||||
.
|
||||
.TP
|
||||
.B dvbscale[=aspect]
|
||||
|
|
@ -4410,7 +4410,7 @@ Sum of Absolute Difference threshold, default is 64.
|
|||
.
|
||||
.TP
|
||||
.B softpulldown
|
||||
This filter works only correct with MEncoder and acts on the MPEG2 flags
|
||||
This filter works only correct with MEncoder and acts on the MPEG-2 flags
|
||||
used for soft 3:2 pulldown (soft telecine).
|
||||
If you want to use the ivtc or detc filter on movies that are partly soft
|
||||
telecined, inserting this filter before them should make them more reliable.
|
||||
|
|
@ -5336,7 +5336,7 @@ H.263
|
|||
.IPs h263p
|
||||
H.263+
|
||||
.IPs mpeg4
|
||||
MPEG4 (DivX 4/5)
|
||||
MPEG-4 (DivX 4/5)
|
||||
.IPs msmpeg4
|
||||
DivX 3
|
||||
.IPs msmpeg4v2
|
||||
|
|
@ -5348,9 +5348,9 @@ Windows Media Video, version 2 (AKA WMV8)
|
|||
.IPs rv10\
|
||||
an old RealVideo codec
|
||||
.IPs mpeg1video
|
||||
MPEG1 video
|
||||
MPEG-1 video
|
||||
.IPs mpeg2video
|
||||
MPEG2 video
|
||||
MPEG-2 video
|
||||
.IPs huffyuv
|
||||
HuffYUV
|
||||
.IPs asv1\
|
||||
|
|
@ -5421,7 +5421,7 @@ maximum number of B-frames between non-B-frames:
|
|||
.IPs 0
|
||||
no B-frames (default)
|
||||
.IPs 0\-2
|
||||
sane range for MPEG4
|
||||
sane range for MPEG-4
|
||||
.RE
|
||||
.PD 1
|
||||
.
|
||||
|
|
@ -5506,7 +5506,7 @@ slightly smaller files but less precise seeking.
|
|||
0 is equivalent to 1, which makes every frame a keyframe.
|
||||
Values >300 are not recommended as the quality might be bad depending upon
|
||||
decoder, encoder and luck.
|
||||
For a strict MPEG1/\:2/\:4 compliance this would have to be <=132.
|
||||
For a strict MPEG-1/2/4 compliance this would have to be <=132.
|
||||
.
|
||||
.TP
|
||||
.B sc_threshold=<-1000000\-1000000>
|
||||
|
|
@ -5647,7 +5647,7 @@ minimum bitrate in kbit/\:sec (pass\ 1/\:2)
|
|||
.TP
|
||||
.B vrc_buf_size=<value>
|
||||
buffer size in kbit (pass\ 1/\:2).
|
||||
For MPEG1/\:2 this also sets the vbv buffer size, use 327 for VCD,
|
||||
For MPEG-1/2 this also sets the vbv buffer size, use 327 for VCD,
|
||||
917 for SVCD and 1835 for DVD.
|
||||
.
|
||||
.TP
|
||||
|
|
@ -5850,7 +5850,7 @@ strict standard compliance
|
|||
disabled (default)
|
||||
.IPs 1
|
||||
Only recommended if you want to feed the output into the
|
||||
MPEG4 reference decoder.
|
||||
MPEG-4 reference decoder.
|
||||
.IPs -1
|
||||
Allows non-standard YV12 HuffYUV encoding (20% smaller files, but cannot be
|
||||
played by the official HuffYUV codec).
|
||||
|
|
@ -6592,7 +6592,7 @@ Decide whether to use MPEG or H.263 quantizers on a frame-by-frame basis
|
|||
.br
|
||||
.I WARNING:
|
||||
This will generate an illegal bitstream, and most likely not be decodable
|
||||
by any MPEG4 decoder besides libavcodec or XviD.
|
||||
by any MPEG-4 decoder besides libavcodec or XviD.
|
||||
.br
|
||||
.I WARNING:
|
||||
As of XviD-1.0.x, this option is no longer available.
|
||||
|
|
@ -6652,7 +6652,7 @@ you are doing.
|
|||
.br
|
||||
.I WARNING:
|
||||
This will generate an illegal bitstream, and will not be
|
||||
decodable by ISO-MPEG4 decoders except DivX/\:libavcodec/\:XviD.
|
||||
decodable by ISO-MPEG-4 decoders except DivX/\:libavcodec/\:XviD.
|
||||
.br
|
||||
.I WARNING:
|
||||
This will also store a fake DivX version in the file so the bug
|
||||
|
|
@ -6704,7 +6704,7 @@ own risks!
|
|||
.
|
||||
.TP
|
||||
.B (no)qpel
|
||||
MPEG4 uses a half pixel precision for its motion search by default.
|
||||
MPEG-4 uses a half pixel precision for its motion search by default.
|
||||
The standard proposes a mode where encoders are allowed to use quarter
|
||||
pixel precision.
|
||||
This option usually results in a sharper image.
|
||||
|
|
@ -6893,7 +6893,7 @@ the Display Aspect Ratio).
|
|||
PAR is the ratio of the width and height of a single pixel.
|
||||
So both are related like this: DAR = PAR * (width/height).
|
||||
.br
|
||||
MPEG4 defines 5 pixel aspect ratios and one extended
|
||||
MPEG-4 defines 5 pixel aspect ratios and one extended
|
||||
one, giving the opportunity to specify a specific pixel aspect
|
||||
ratio.
|
||||
5 standard modes can be specified:
|
||||
|
|
|
|||
|
|
@ -19,12 +19,12 @@ The most important ones above all:
|
|||
|
||||
<itemizedlist>
|
||||
<listitem><simpara>
|
||||
<emphasis role="bold">MPEG1</emphasis> (<emphasis role="bold">VCD</emphasis>) and
|
||||
<emphasis role="bold">MPEG2</emphasis> (<emphasis role="bold">DVD</emphasis>) video
|
||||
<emphasis role="bold">MPEG-1</emphasis> (<emphasis role="bold">VCD</emphasis>) and
|
||||
<emphasis role="bold">MPEG-2</emphasis> (<emphasis role="bold">DVD</emphasis>) video
|
||||
</simpara></listitem>
|
||||
<listitem><simpara>
|
||||
native decoders for <emphasis role="bold">DivX ;-), OpenDivX (DivX4),
|
||||
DivX 5 (Pro), 3ivX, M$ MPEG4</emphasis> v1, v2 and other MPEG4 variants
|
||||
DivX 5 (Pro), 3ivX, M$ MPEG-4</emphasis> v1, v2 and other MPEG-4 variants
|
||||
</simpara></listitem>
|
||||
<listitem><simpara>
|
||||
native decoder for <emphasis role="bold">Windows Media Video 7/8</emphasis>
|
||||
|
|
@ -85,7 +85,7 @@ This section contains information about the DivX4 and DivX5 codecs of
|
|||
Their first available alpha version was OpenDivX 4.0 alpha 47 and 48.
|
||||
Support for this was included in <application>MPlayer</application> in the
|
||||
past, and built by default. We also used its postprocessing code to
|
||||
optionally enhance visual quality of MPEG1/2 movies. Now we use our own,
|
||||
optionally enhance visual quality of MPEG-1/2 movies. Now we use our own,
|
||||
for all file types.
|
||||
</para>
|
||||
|
||||
|
|
@ -203,7 +203,7 @@ DivX.com DivX4/5 libraries!
|
|||
</para>
|
||||
|
||||
<para>
|
||||
It contains a lot of nice codecs, especially important are the MPEG4 variants:
|
||||
It contains a lot of nice codecs, especially important are the MPEG-4 variants:
|
||||
DivX3, DivX4, DivX5, Windows Media Video 7/8 (WMV1/WMV2). Also a very interesting one
|
||||
is the WMA decoder.
|
||||
</para>
|
||||
|
|
@ -353,11 +353,11 @@ automatically.
|
|||
|
||||
|
||||
<sect3 id="mpeg12">
|
||||
<title>MPEG 1/2 video</title>
|
||||
<title>MPEG-1/2 video</title>
|
||||
<para>
|
||||
MPEG1 and MPEG2 are decoded by the multiplatform native <systemitem
|
||||
MPEG-1 and MPEG-2 are decoded by the multiplatform native <systemitem
|
||||
class="library">libmpeg2</systemitem> library, whose source code is
|
||||
included in <application>MPlayer</application>. We handle buggy MPEG 1/2
|
||||
included in <application>MPlayer</application>. We handle buggy MPEG-1/2
|
||||
video files by catching <systemitem>Signal 11</systemitem>
|
||||
(<systemitem>segmentation fault</systemitem>), and quickly
|
||||
reinitializing the codec, continuing exactly from where the failure
|
||||
|
|
|
|||
|
|
@ -61,7 +61,7 @@ many other Unices, and <emphasis role="bold">non-x86</emphasis> CPUs, see
|
|||
QT/MOV/MP4, FLI, RM, NuppelVideo, yuv4mpeg, FILM, RoQ, PVA, Matroska files, supported by
|
||||
many native, XAnim, RealPlayer, and Win32 DLL codecs. You can watch
|
||||
<emphasis role="bold">VideoCD, SVCD, DVD, 3ivx, RealMedia, Sorenson, Theora</emphasis>, and
|
||||
<emphasis role="bold">MPEG4 (DivX)</emphasis> movies too. Another big
|
||||
<emphasis role="bold">MPEG-4 (DivX)</emphasis> movies too. Another big
|
||||
feature of <application>MPlayer</application> is the wide range of
|
||||
supported output drivers. It works with X11, Xv, DGA, OpenGL, SVGAlib,
|
||||
fbdev, AAlib, libcaca, DirectFB, but you can use GGI and SDL (and this way all
|
||||
|
|
@ -93,7 +93,7 @@ Encoder) is a simple movie encoder, designed to encode
|
|||
<application>MPlayer</application>-playable movies
|
||||
(<emphasis role="bold">AVI/ASF/OGG/DVD/VCD/VOB/MPG/MOV/VIV/FLI/RM/NUV/NET/PVA</emphasis>)
|
||||
to other <application>MPlayer</application>-playable formats (see below). It
|
||||
can encode with various codecs, like <emphasis role="bold">MPEG4 (DivX4)</emphasis>
|
||||
can encode with various codecs, like <emphasis role="bold">MPEG-4 (DivX4)</emphasis>
|
||||
(1 or 2 passes), <systemitem class="library">libavcodec</systemitem>,
|
||||
<emphasis role="bold">PCM/MP3/VBR MP3</emphasis>
|
||||
audio.
|
||||
|
|
|
|||
|
|
@ -1420,7 +1420,7 @@ movie on any CD. Check if you have libmp3lame installed properly.
|
|||
|
||||
<qandaentry>
|
||||
<question><para>
|
||||
I can't encode an ASF file to AVI/MPEG4 (DivX) because it uses 1000 fps.
|
||||
I can't encode an ASF file to AVI/MPEG-4 (DivX) because it uses 1000 fps.
|
||||
</para></question>
|
||||
<answer><para>
|
||||
Because ASF uses variable frame rate but AVI uses a fixed one, you
|
||||
|
|
|
|||
|
|
@ -7,24 +7,24 @@
|
|||
It is important to clarify a common mistake. When people see a file with a
|
||||
<filename>.AVI</filename> extension, they immediately conclude that it is
|
||||
not an MPEG file. That is not true. At least not entirely. Contrary to
|
||||
popular belief such a file <emphasis>can</emphasis> contain MPEG1 video.
|
||||
popular belief such a file <emphasis>can</emphasis> contain MPEG-1 video.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
You see, a <emphasis role="bold">codec</emphasis> is not the same as a
|
||||
<emphasis role="bold">file format</emphasis>.
|
||||
Examples of video <emphasis role="bold">codecs</emphasis> are: MPEG1, MPEG2,
|
||||
MPEG4 (DivX), Indeo5, 3ivx.
|
||||
Examples of video <emphasis role="bold">codecs</emphasis> are: MPEG-1, MPEG-2,
|
||||
MPEG-4 (DivX), Indeo5, 3ivx.
|
||||
Examples of file <emphasis role="bold">formats</emphasis> are: MPG, AVI, ASF.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
In theory, you can put an OpenDivX video and MP3 audio
|
||||
into an <emphasis role="bold">MPG format file</emphasis>. However, most
|
||||
players will not play it, since they expect MPEG1 video and MP2 audio (unlike
|
||||
players will not play it, since they expect MPEG-1 video and MP2 audio (unlike
|
||||
<emphasis role="bold">AVI</emphasis>, <emphasis role="bold">MPG</emphasis>
|
||||
does not have the necessary fields to describe its video and audio streams).
|
||||
Or you might put MPEG1 video into an AVI file.
|
||||
Or you might put MPEG-1 video into an AVI file.
|
||||
<ulink url="http://ffmpeg.org/">FFmpeg</ulink> and
|
||||
<link linkend="mencoder"><application>MEncoder</application></link> can create these files.
|
||||
</para>
|
||||
|
|
@ -43,7 +43,7 @@ MPEG files come in different guises:
|
|||
<itemizedlist>
|
||||
<listitem><simpara>
|
||||
MPG: This is the most <emphasis role="bold">basic</emphasis> form of the
|
||||
MPEG file formats. It contains MPEG1 video, and MP2 (MPEG-1 layer 2) or
|
||||
MPEG file formats. It contains MPEG-1 video, and MP2 (MPEG-1 layer 2) or
|
||||
rarely MP1 audio.
|
||||
</simpara></listitem>
|
||||
<listitem><simpara>
|
||||
|
|
@ -56,7 +56,7 @@ MPEG files come in different guises:
|
|||
<listitem><simpara>
|
||||
VOB: This is the MPEG file format on <emphasis role="bold">DVDs</emphasis>.
|
||||
It is the same as MPG, plus the capability to contain subtitles or non-MPEG
|
||||
(AC3) audio. It contains encoded MPEG2 video and usually AC3 audio, but DTS,
|
||||
(AC3) audio. It contains encoded MPEG-2 video and usually AC3 audio, but DTS,
|
||||
MP2 and uncompressed LPCM are allowed, too. <emphasis role="bold">Read the
|
||||
<link linkend="dvd">DVD</link> section</emphasis>!
|
||||
</simpara></listitem>
|
||||
|
|
@ -85,7 +85,7 @@ option.
|
|||
|
||||
<para>
|
||||
Designed by Microsoft, <emphasis role="bold">AVI (Audio Video Interleaved)</emphasis>
|
||||
is a widespread multipurpose format currently used mostly for MPEG4 (DivX and DivX4)
|
||||
is a widespread multipurpose format currently used mostly for MPEG-4 (DivX and DivX4)
|
||||
video. It has many known drawbacks and shortcomings (for example in streaming). It
|
||||
supports one video stream and 0 to 99 audio streams and can be as big as
|
||||
2GB, but there exists an extension allowing bigger files called
|
||||
|
|
@ -183,8 +183,8 @@ v2.0 files :). Note that ASF files nowadays come with the extension
|
|||
<para>
|
||||
These formats were designed by Apple and can contain any codec, CBR or VBR.
|
||||
They usually have a <filename>.QT</filename> or <filename>.MOV</filename>
|
||||
extension. Note that since the MPEG4 group chose QuickTime as the recommended
|
||||
file format for MPEG4, their MOV files come with a <filename>.MPG</filename> or
|
||||
extension. Note that since the MPEG-4 group chose QuickTime as the recommended
|
||||
file format for MPEG-4, their MOV files come with a <filename>.MPG</filename> or
|
||||
<filename>.MP4</filename> extension (Interestingly the video and audio
|
||||
streams in these files are real MPG and AAC files. You can even extract them with the
|
||||
<option>-dumpvideo</option> and <option>-dumpaudio</option> options.).
|
||||
|
|
@ -261,7 +261,7 @@ its <filename>.NUV</filename> files (only NuppelVideo 5.0). Those files can
|
|||
contain uncompressed YV12, YV12+RTJpeg compressed, YV12 RTJpeg+lzo
|
||||
compressed, and YV12+lzo compressed frames.
|
||||
<application>MPlayer</application> decodes (and also <emphasis role="bold">encodes</emphasis>
|
||||
them with <application>MEncoder</application> to MPEG4 (DivX)/etc!) them all.
|
||||
them with <application>MEncoder</application> to MPEG-4 (DivX)/etc!) them all.
|
||||
Seeking works.
|
||||
</para>
|
||||
</sect3>
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ This began a year ago... I have tried lots of players under Linux
|
|||
<application>xanim</application>, <application>avifile</application>,
|
||||
<application>xmmp</application>) but they all have some problem. Mostly with
|
||||
special files or with audio/video sync. Most of them are unable to play both
|
||||
MPEG1, MPEG2 and AVI (DivX) files. Many players have image quality or speed
|
||||
MPEG-1, MPEG-2 and AVI (DivX) files. Many players have image quality or speed
|
||||
problems too. So I've decided to write/modify one...
|
||||
</para></blockquote><para>A'rpi, 2001</para>
|
||||
|
||||
|
|
|
|||
|
|
@ -151,7 +151,7 @@ You need a fairly recent system. On Linux, 2.4.x kernels are recommended.
|
|||
</simpara></listitem>
|
||||
<listitem><simpara>
|
||||
this codec is the <emphasis role="bold">fastest codec available</emphasis> for
|
||||
DivX/3/4/5 and other MPEG4 types. Recommended!
|
||||
DivX/3/4/5 and other MPEG-4 types. Recommended!
|
||||
</simpara></listitem>
|
||||
</itemizedlist>
|
||||
</para></listitem>
|
||||
|
|
|
|||
|
|
@ -15,7 +15,7 @@ encoding with <application>MEncoder</application>.
|
|||
</para>
|
||||
|
||||
<sect1 id="menc-feat-mpeg4">
|
||||
<title>Encoding 2-pass MPEG4 ("DivX")</title>
|
||||
<title>Encoding 2-pass MPEG-4 ("DivX")</title>
|
||||
|
||||
<para>
|
||||
The name comes from the fact that this method encodes the file <emphasis>twice</emphasis>.
|
||||
|
|
@ -31,7 +31,7 @@ net.
|
|||
<example>
|
||||
<title>copy audio track</title>
|
||||
<para>
|
||||
2-pass encode of a DVD to an MPEG4 ("DivX") AVI while copying
|
||||
2-pass encode of a DVD to an MPEG-4 ("DivX") AVI while copying
|
||||
the audio track.
|
||||
<screen>
|
||||
mencoder dvd://2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 -oac copy -o <replaceable>movie.avi</replaceable>
|
||||
|
|
@ -43,7 +43,7 @@ mencoder dvd://2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac copy -o <replacea
|
|||
<example>
|
||||
<title>encode audio track</title>
|
||||
<para>
|
||||
2-pass encode of a DVD to an MPEG4 ("DivX") AVI while encoding
|
||||
2-pass encode of a DVD to an MPEG-4 ("DivX") AVI while encoding
|
||||
the audio track to MP3.
|
||||
<screen>
|
||||
mencoder dvd://2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 -oac mp3lame -lameopts vbr=3 -o <replaceable>movie.avi</replaceable>
|
||||
|
|
@ -60,14 +60,14 @@ mencoder dvd://2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac mp3lame -lameopts
|
|||
files. It's probably useful only with
|
||||
<link linkend="ffmpeg"><systemitem class="library">libavcodec</systemitem></link>'s
|
||||
<emphasis>mpeg1video</emphasis> codec, because players - except
|
||||
<application>MPlayer</application> - expect MPEG1 video, and MPEG1 layer 2 (MP2)
|
||||
<application>MPlayer</application> - expect MPEG-1 video, and MPEG-1 layer 2 (MP2)
|
||||
audio streams in MPEG files.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
This feature is not very useful right now, aside that it probably has many bugs,
|
||||
but the more importantly because <application>MEncoder</application> currently
|
||||
cannot encode MPEG1 layer 2 (MP2) audio, which all other players expect in MPEG files.
|
||||
cannot encode MPEG-1 layer 2 (MP2) audio, which all other players expect in MPEG files.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
|
|
@ -124,7 +124,7 @@ them. This section is about <emphasis role="bold">copying</emphasis>.
|
|||
<listitem><para>
|
||||
<emphasis role="bold">Video stream</emphasis> (option <option>-ovc copy</option>):
|
||||
nice stuff can be done :) Like, putting (not converting!) FLI or VIVO or
|
||||
MPEG1 video into an AVI file! Of course only
|
||||
MPEG-1 video into an AVI file! Of course only
|
||||
<application>MPlayer</application> can play such files :) And it probably
|
||||
has no real life value at all. Rationally: video stream copying can be
|
||||
useful for example when only the audio stream has to be encoded (like,
|
||||
|
|
@ -210,13 +210,13 @@ You can encode to the following codecs (more or less up to date):
|
|||
H.263+
|
||||
</entry></row>
|
||||
<row><entry>mpeg4</entry><entry>
|
||||
ISO standard MPEG4 (DivX 5, XVID compatible)
|
||||
ISO standard MPEG-4 (DivX 5, XVID compatible)
|
||||
</entry></row>
|
||||
<row><entry>msmpeg4</entry><entry>
|
||||
pre-standard MPEG4 variant by MS, v3 (AKA DivX3)
|
||||
pre-standard MPEG-4 variant by MS, v3 (AKA DivX3)
|
||||
</entry></row>
|
||||
<row><entry>msmpeg4v2</entry><entry>
|
||||
pre-standard MPEG4 by MS, v2 (used in old asf files)
|
||||
pre-standard MPEG-4 by MS, v2 (used in old asf files)
|
||||
</entry></row>
|
||||
<row><entry>wmv1</entry><entry>
|
||||
Windows Media Video, version 1 (AKA WMV7)
|
||||
|
|
@ -228,10 +228,10 @@ You can encode to the following codecs (more or less up to date):
|
|||
an old RealVideo codec
|
||||
</entry></row>
|
||||
<row><entry>mpeg1video</entry><entry>
|
||||
MPEG1 video
|
||||
MPEG-1 video
|
||||
</entry></row>
|
||||
<row><entry>mpeg2video</entry><entry>
|
||||
MPEG2 video
|
||||
MPEG-2 video
|
||||
</entry></row>
|
||||
<row><entry>huffyuv</entry><entry>
|
||||
lossless compression
|
||||
|
|
@ -291,7 +291,7 @@ The explanation of the <option>-mf</option> option is in the man page.
|
|||
|
||||
<informalexample>
|
||||
<para>
|
||||
Creating an MPEG4 file from all the JPEG files in the current directory:
|
||||
Creating an MPEG-4 file from all the JPEG files in the current directory:
|
||||
<screen>
|
||||
mencoder mf://*.jpg -mf type=jpg:w=800:h=600:fps=25 -ovc lavc -lavcopts vcodec=mpeg4 -oac copy -o <replaceable>output.avi</replaceable>
|
||||
</screen>
|
||||
|
|
@ -300,7 +300,7 @@ mencoder mf://*.jpg -mf type=jpg:w=800:h=600:fps=25 -ovc lavc -lavcopts vcodec=m
|
|||
|
||||
<informalexample>
|
||||
<para>
|
||||
Creating an MPEG4 file from some JPEG files in the current directory:
|
||||
Creating an MPEG-4 file from some JPEG files in the current directory:
|
||||
<screen>
|
||||
mencoder mf://<replaceable>frame001.jpg,frame002.jpg</replaceable> -mf type=jpg:w=800:h=600:fps=25 -ovc lavc -lavcopts vcodec=mpeg4 -oac copy -o <replaceable>output.avi</replaceable>
|
||||
</screen>
|
||||
|
|
@ -415,7 +415,7 @@ mencoder <replaceable>movie.mpg</replaceable> -ifo <replaceable>movie.ifo</repla
|
|||
<sect1 id="aspect">
|
||||
<title>Preserving aspect ratio</title>
|
||||
<para>
|
||||
DVDs and SVCDs (i.e. MPEG1/2) files contain an aspect ratio value, which
|
||||
DVDs and SVCDs (i.e. MPEG-1/2) files contain an aspect ratio value, which
|
||||
describes how the player should scale the video stream, so humans won't
|
||||
have egg heads (ex.: 480x480 + 4:3 = 640x480). However when encoding to AVI
|
||||
(DivX) files, you have be aware that AVI headers don't store this value.
|
||||
|
|
@ -426,10 +426,10 @@ way!
|
|||
<para>There is</para>
|
||||
|
||||
<para>
|
||||
MPEG4 has an unique feature: the video stream can contain its needed aspect
|
||||
ratio. Yes, just like MPEG1/2 (DVD, SVCD) and H.263 files. Regretfully, there are
|
||||
MPEG-4 has an unique feature: the video stream can contain its needed aspect
|
||||
ratio. Yes, just like MPEG-1/2 (DVD, SVCD) and H.263 files. Regretfully, there are
|
||||
<emphasis role="bold">no</emphasis> video players outside which support this
|
||||
attribute of MPEG4, except <application>MPlayer</application>.
|
||||
attribute of MPEG-4, except <application>MPlayer</application>.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
|
|
@ -519,7 +519,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,
|
|||
</sect1>
|
||||
|
||||
<sect1 id="menc-feat-dvd-mpeg4">
|
||||
<title>Making a high quality MPEG4 ("DivX") rip of a DVD movie</title>
|
||||
<title>Making a high quality MPEG-4 ("DivX") rip of a DVD movie</title>
|
||||
|
||||
<para>
|
||||
One frequently asked question is "How do I make the highest quality DVD
|
||||
|
|
@ -529,14 +529,14 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,
|
|||
|
||||
<para>
|
||||
This question is perhaps at least somewhat wrongly posed. After all, if
|
||||
you don't care about file size, why not simply copy the MPEG2 video
|
||||
you don't care about file size, why not simply copy the MPEG-2 video
|
||||
stream from the DVD whole? Sure, your AVI will end up being 5GB, give
|
||||
or take, but if you want the best quality and don't care about size,
|
||||
this is certainly your best option.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
In fact, the reason you want to transcode a DVD into MPEG4 is
|
||||
In fact, the reason you want to transcode a DVD into MPEG-4 is
|
||||
specifically because you <emphasis role="bold">do</emphasis> care about
|
||||
file size.
|
||||
</para>
|
||||
|
|
@ -666,7 +666,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,
|
|||
<para>
|
||||
<application>MPlayer</application> provides a crop detection filter that
|
||||
will determine the crop rectangle (<option>-vf cropdetect</option>).
|
||||
Because MPEG4 uses 16x16 macroblocks, you'll want to make sure that each
|
||||
Because MPEG-4 uses 16x16 macroblocks, you'll want to make sure that each
|
||||
dimension of the video you're encoding is a multiple of 16 or else you
|
||||
will be degrading quality, especially at lower bitrates. You can do this
|
||||
by rounding the width and height of the crop rectangle down to the nearest
|
||||
|
|
|
|||
|
|
@ -1734,7 +1734,7 @@ Configure should detect your DVB card. If it did not, force detection with
|
|||
<formalpara>
|
||||
<title>USAGE</title>
|
||||
<para>
|
||||
Hardware decoding (playing standard MPEG1/2 files) can be done with this command:
|
||||
Hardware decoding (playing standard MPEG-1/2 files) can be done with this command:
|
||||
</para>
|
||||
</formalpara>
|
||||
|
||||
|
|
@ -1743,7 +1743,7 @@ Hardware decoding (playing standard MPEG1/2 files) can be done with this command
|
|||
</para>
|
||||
|
||||
<para>
|
||||
Software decoding or transcoding different formats to MPEG1 can be achieved using
|
||||
Software decoding or transcoding different formats to MPEG-1 can be achieved using
|
||||
a command like this:
|
||||
</para>
|
||||
<para><screen>
|
||||
|
|
@ -1758,14 +1758,14 @@ NTSC. You <emphasis role="bold">must</emphasis> rescale for other heights by add
|
|||
<option>-vf</option> option. DVB cards accept various widths, like 720, 704,
|
||||
640, 512, 480, 352 etc and do hardware scaling in horizontal direction, so you
|
||||
do not need to scale horizontally in most cases. For a 512x384 (aspect 4:3)
|
||||
MPEG4 (DivX) try:
|
||||
MPEG-4 (DivX) try:
|
||||
</para>
|
||||
|
||||
<para><screen>mplayer -ao mpegpes -vo mpegpes -vf scale=512:576</screen></para>
|
||||
|
||||
<para>If you have a widescreen movie and you do not want to scale it to full height,
|
||||
you can use the <option>expand=w:h</option> filter to add black bands. To view a
|
||||
640x384 MPEG4 (DivX), try:
|
||||
640x384 MPEG-4 (DivX), try:
|
||||
</para>
|
||||
|
||||
<para>
|
||||
|
|
@ -1774,7 +1774,7 @@ you can use the <option>expand=w:h</option> filter to add black bands. To view a
|
|||
</para>
|
||||
|
||||
<para>
|
||||
If your CPU is too slow for a full size 720x576 MPEG4 (DivX), try downscaling:
|
||||
If your CPU is too slow for a full size 720x576 MPEG-4 (DivX), try downscaling:
|
||||
</para>
|
||||
|
||||
<para>
|
||||
|
|
@ -1805,7 +1805,7 @@ In order to play non-25fps movies on a PAL TV or with a slow CPU, add the
|
|||
</para>
|
||||
|
||||
<para>
|
||||
To keep the aspect ratio of MPEG4 (DivX) files and get the optimal scaling
|
||||
To keep the aspect ratio of MPEG-4 (DivX) files and get the optimal scaling
|
||||
parameters (hardware horizontal scaling and software vertical scaling
|
||||
while keeping the right aspect ratio), use the new dvbscale filter:
|
||||
</para>
|
||||
|
|
@ -1944,7 +1944,7 @@ mailing list. Please remember that the list language is English.
|
|||
<para>
|
||||
In the future you may expect the ability to display OSD and subtitles using
|
||||
the native OSD feature of DVB cards, as well as more fluent playback of
|
||||
non-25fps movies and realtime transcoding between MPEG2 and MPEG4 (partial
|
||||
non-25fps movies and realtime transcoding between MPEG-2 and MPEG-4 (partial
|
||||
decompression).
|
||||
</para>
|
||||
</sect3>
|
||||
|
|
@ -2045,8 +2045,8 @@ rate of the movie. norm = 0 (default) does not change the current norm.
|
|||
<option><replaceable>device</replaceable></option> = device number to use if you have more than one em8300
|
||||
card.
|
||||
Any of these options may be left out.
|
||||
<option>:prebuf:sync</option> seems to work great when playing MPEG4 (DivX) movies. People
|
||||
have reported problems using the prebuf option when playing MPEG1/2 files. You
|
||||
<option>:prebuf:sync</option> seems to work great when playing MPEG-4 (DivX) movies. People
|
||||
have reported problems using the prebuf option when playing MPEG-1/2 files. You
|
||||
might want to try running without any options first, if you have sync problems,
|
||||
or DVD subtitle problems, give <option>:sync</option> a try.
|
||||
</para></listitem>
|
||||
|
|
@ -2073,8 +2073,8 @@ This does not work with digital audio output (<option>-ac hwac3</option>).
|
|||
<varlistentry>
|
||||
<term><option>-vf lavc/fame</option></term>
|
||||
<listitem><para>
|
||||
To watch non-MPEG content on the em8300 (i.e. MPEG4 (DivX) or RealVideo)
|
||||
you have to specify an MPEG1 video filter such as
|
||||
To watch non-MPEG content on the em8300 (i.e. MPEG-4 (DivX) or RealVideo)
|
||||
you have to specify an MPEG-1 video filter such as
|
||||
<systemitem class="library">libavcodec</systemitem> (lavc) or
|
||||
<systemitem class="library">libfame</systemitem> (fame). At
|
||||
the moment lavc is both faster and gives better image quality, it is suggested
|
||||
|
|
@ -2093,10 +2093,10 @@ becomes stable. For now all we can do is accept this for a fact.
|
|||
<varlistentry>
|
||||
<term><option>-vf expand=-1:-1:-1:-1:1</option></term>
|
||||
<listitem><para>
|
||||
Although the DXR3 driver can put some OSD onto the MPEG1/2/4 video, it has
|
||||
Although the DXR3 driver can put some OSD onto the MPEG-1/2/4 video, it has
|
||||
much lower quality than <application>MPlayer</application>'s traditional OSD,
|
||||
and has several refresh problems as well. The command line above will firstly
|
||||
convert the input video to MPEG4 (this is mandatory, sorry), then apply an
|
||||
convert the input video to MPEG-4 (this is mandatory, sorry), then apply an
|
||||
expand filter which won't expand anything (-1: default), but apply the normal
|
||||
OSD onto the picture (that's what the "1" at the end does).
|
||||
</para></listitem>
|
||||
|
|
|
|||
Loading…
Reference in New Issue