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665 lines
17 KiB
665 lines
17 KiB
4 years ago
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<html>
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<head>
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<title> Linux Video Stream Processing Tool - Examples</title>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta name="keywords" content="DVD, digital video, DV, encoder, divx,
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DivX;-), lame, source, posix, avifile, opendivx, codec, linux, AC3,
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program stream, video, audio, transcode, decoder, stream, YV12">
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</head>
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<body bgcolor=#CDB5CD>
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<a name=top></a>
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<table cellspacing="10" cellpadding="0" border="0" width="100%">
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<tr>
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<td align=left valign="top" width=30% bgcolor="#a0a0a0">
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<table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%>
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<td align="left" bgcolor="#e9e9e9"> <FONT
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FACE="Lucida,Helvetica"> <font >VCD/(S)VCD/DVD</font>
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</tr>
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<tr>
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<td>
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<ul>
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<li> <a href="mpeg.html#pmpeg"> <FONT FACE="Lucida,Helvetica">
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encoding to MPEG (PAL)</font></a><br>
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<ul>
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<li> <a href="mpeg.html#pmpeg1"> <FONT
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FACE="Lucida,Helvetica"> VCD </font></a>
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<li> <a href="mpeg.html#pvcd"> <FONT FACE="Lucida,Helvetica">
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(S)VCD</font></a>
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<li> <a href="mpeg.html#pdvd"> <FONT FACE="Lucida,Helvetica">
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DVD</font></a>
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</ul>
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<p>
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<li> <a href="mpeg.html#nmpeg"> <FONT FACE="Lucida,Helvetica">
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encoding to MPEG (NTSC)</font></a><br>
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<ul>
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<li><a href="mpeg.html#nmpeg1"> <FONT FACE="Lucida,Helvetica"> VCD</font></a>
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<li> <a href="mpeg.html#nvcd"> <FONT FACE="Lucida,Helvetica">
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(S)VCD</font></a>
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<li> <a href="mpeg.html#ndvd"> <FONT FACE="Lucida,Helvetica">
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DVD</font></a>
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</ul>
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</td>
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</tr>
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</table>
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</table>
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<a name=pmpeg></a>
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<table cellspacing="10" cellpadding="0" border="0" width="100%">
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<tr>
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<td align=left valign="top" width=30% bgcolor="#a0a0a0">
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<table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%>
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<td align="left" bgcolor="#e9e9e9">
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<font>encoding to MPEG (PAL)</font>
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</tr>
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<tr>
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<td>
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Notes:
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<ul>
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<li> [...] denote import/processing options.
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<li> if the aspect ratio changes after resizing the video frame,
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use "--export_asr code" to notify encoder. Possible aspect
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ratio codes are: 1=1:1, 2=4:3, 3=16:9, 4=2.21:1.
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<li> muliplex add-on audio track with "-s filename". <i>tcmplex</i>
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supports 1 video and 2 audio tracks.
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<li> enable <i>sox</i> re-sampling filter with "-J resample"
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(optional) instead of export modules resampling feature.
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<li> for encoding with <i>mjpeg-tools</i>, the use of <i>mplex</i> is
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recommended.
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<li> Use <i>tcmplex</i> option "-D" to adjust a possible AV mismatch.
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</ul>
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<a name=pmpeg1><h3>VCD (352x288)</h3></a>
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Video CD's have a restricted format for audio (MP2, 44100 Hz,
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224 kBits/s, stereo) and video (MPEG-1, 352x288, 1152 kBits/s CBR) parameter.
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The preset profiles take care of the VCD2.0 specification.
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<ul>
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<li> bbmpeg port to linux: <font color=red><bf>audio
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downsampling reported BROKEN! Additionally use "-J resample".</b></font>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg -F v,1 -E 44100 -b 224 -o test</td>
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</tr>
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</table>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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tcmplex -o test.mpg -i test.m1v -p test.mpa -m v</td>
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</tr>
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</table>
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<p>
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Replace "-F v,1" by "-F v" if you prefer resizing handled
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by transcode. Example: reduce 720x576 to
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352x288 with "-B 18,23,16".<br><br>
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<li> mjpeg-tools interface:
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg2enc,mp2enc -F 1 -Z 352x288 -E 44100 -b 224 -o test</td>
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</tr>
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</table>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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mplex -f 1 -S 680 -o test.mpg test.m1v test.mpa
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</tr>
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</table>
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<p>
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Replace "-Z 352x288" by "-B" if you prefer the fast resizing mode
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by transcode. Example: reduce 720x576 to
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352x288 with "-B 18,23,16".<br><br>
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</ul>
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<a name=pvcd><h3>(S)VCD (480x576)</h3></a>
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Super Video CD's have a less restricted format for audio (MP2, 44100 Hz,
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32-384 kBits/s, stereo) and video (MPEG-2, 480x576, up to 2600
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kBits/s VBR) parameter.
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The preset profiles take care of the SVCD2.0 specification.
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<ul>
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<li> bbmpeg port to linux:
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You may try to increase th bitrate for higher quality (X)SVCD.
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Most consumer DVD/(S)VCD player can cope with that.
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This is done with a profile file <i>xsvcd.prof</i>, which contains the
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following entries:<p>
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<code>
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#(S)VCD profile for improved quality<br>
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fixed_vbv_delay = 1 <br>
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vbv_buffer_size = 230<br>
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cbr = 1<br>
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cbr_bitrate = 4000000.0<br>
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quant_value = 2<br>
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qscale_type = 0<br>
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vbr_mux = 0<br>
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video_buf_size = 230<br>
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use_comp_bitrate = 1<br>
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</code>
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<p>
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and will bump up the bitrate to 4000 kbps. The additional
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profile parameter are passed with the file name as a 3rd argument to "-F".
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<br>
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<font color=red><bf>audio
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downsampling reported BROKEN! Additionally use "-J resample".</b></font>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg -F s,3,xsvcd.prof -E 44100 -b 128 -o test</td>
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</tr>
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</table>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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tcmplex -o test.mpg -i test.m2v -p test.mpa -m s</td>
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</tr>
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</table>
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<br>
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<li> mjpeg-tools interface:
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg2enc,mp2enc -F 4 -Z 480x576 -E 44100 -b 128 -o test</td>
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</tr>
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</table>
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<p>
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Replace "-Z 480x576" by <i>transcode</i>'s fast resizing
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option "-B" for speed improvements. Example: reduce 720x576 to
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480x576 with "-B 0,15,16".
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<br>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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mplex -f 4 -S 680 -o test.mpg test.m2v test.mpa
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</tr>
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</table>
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</ul>
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<a name=pdvd><h3>DVD compliant format</h3></a>
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Possible frame parameter combination: 720x576, 704x576, 352x576 and 352x288.<br>
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For a video frame size of 352x288, resizing can be delegated to the
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export module with "-F d,1", all other values require use of transcode's
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resize options.
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<ul>
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<li> bbmpeg port to linux:
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<ul><br>
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<li> MP2 audio:<font color=red><bf>audio
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downsampling reported BROKEN! Additionally use "-J resample".</b></font>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg -F d -E 44100 -b 224 -o test</td>
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</tr>
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</table>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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tcmplex -o test.vob -i test.m2v -p test.mpa -m d</td>
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</tr>
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</table>
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<br>
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<li> MP3 audio: <font color=red><bf>fixed in 0.6.0rc2</b></font>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg,raw -F d -m test.mp3</td>
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</tr>
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</table>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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tcmplex -o test.vob -i test.m2v -p test.mp3 -m d</td>
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</tr>
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</table>
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<br>
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<li> AC3 pass-through:<br>
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In most cases, you will need to reduce the bitrate for
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encoding. This is done with a profile file <i>dvd.prof</i>, which contains the
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following entry:<p>
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<code>
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#DVD profile with reduced bitrate <br>
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max_bitrate=4000000.0
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</code>
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<p>
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and will reduce the bitrate to 4000 kbps. The
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profile name is passed as a 3rd argument to "-F".
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg,raw -F d,,dvd.prof -m test.ac3 -A -0x2000</td>
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</tr>
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</table>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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tcmplex -o test.vob -i test.m2v -p test.ac3 -m d</td>
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</tr>
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</table>
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<br>
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<li> PCM audio: (not yet supported by <i>tcmplex</i>)
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</ul>
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</ul>
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</table>
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</table>
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<a name=nmpeg></a>
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<table cellspacing="10" cellpadding="0" border="0" width="100%">
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<tr>
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<td align=left valign="top" width=30% bgcolor="#a0a0a0">
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<table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%>
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<td align="left" bgcolor="#e9e9e9">
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<font>encoding to MPEG (NTSC)</font>
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</tr>
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<tr>
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<td>
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<p>
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For NTSC material, transcode currently generates film mode, i.e., 23.976 fps
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(progressive) for most NTSC DVD sources.
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For generating NTSC MPEG video, the final result should be played at
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29.97 fps. Therefore the encoder must set the appropriate
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flags to force a decoder/player to generate a 3:2 pulldown
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(telecine) on demand.
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Transcode offers a long option "--pulldown" to encode to MPEG
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video with the appropriate flags set and switching the display rate
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from 23.976 to 29.97 fps.
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<br>
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<p>
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Notes:
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<ul>
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<li> [...] denote import/processing options.
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<li> if the aspect ratio changes after resizing the video frame,
|
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use "--export_asr code" to notify encoder. Possible aspect
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ratio codes are: 1=1:1, 2=4:3, 3=16:9, 4=2.21:1.
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<li> 3:2 pulldown flags must be enabled with long option "--pulldown"
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<li> muliplex add-on audio track with "-s filename". <i>tcmplex</i>
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supports 1 video and 2 audio tracks.
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<li> enable <i>sox</i> re-sampling filter with "-J resample"
|
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(optional) instead of export modules resampling feature.
|
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<li> for encoding with <i>mjpeg-tools</i>, the use of <i>mplex</i> is
|
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recommended.
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<li> Use <i>tcmplex</i> option "-D" to adjust a possible AV mismatch.
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</ul>
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<a name=nmpeg1><h3>VCD (352x240)</h3></a>
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Video CD's have a restricted format for audio (MP2, 44100 Hz,
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224 kBits/s, stereo) and video (MPEG-1, 352x240, 1152 kBits/s CBR) parameter.
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The preset profiles take care of the VCD2.0 specification.
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<ul>
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<li> bbmpeg port to linux: <font color=red><bf>audio
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downsampling reported BROKEN! Additionally use "-J resample".</b></font>
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<ul> <br>
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<li> NTSC film encoded @ 23.976 -> VCD @ 23.976 film mode:
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<li> NTSC video encoded @ 29.97 -> VCD @ 29.97 video mode:
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<br>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg -F v,4 -E 44100 -b 224 -o test</td>
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</tr>
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</table>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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tcmplex -o test.mpg -i test.m1v -p test.mpa -m v</td>
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</tr>
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</table>
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<br>
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</ul>
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<p>
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<li> mjpeg-tools interface:
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<ul> <br>
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<li> NTSC video encoded @ 29.97 -> VCD @ 29.97 video mode:
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<li> NTSC film encoded @ 23.976 -> VCD @ 23.976
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film mode:
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<br>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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transcode [...] -V -y mpeg2enc,mp2enc -F 1
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-Z 352x240 -E 44100 -b 224 -o test</td>
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</tr>
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</table>
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<table>
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<tr>
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<td align=left valign="top" bgcolor="#ccffcc">
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mplex -f 1 -S 680 -o test.mpg test.m1v test.mpa</td>
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</tr>
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</table>
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<br>
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</ul>
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<p>
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Replace "-Z 352x240" by <i>transcode</i>'s fast resizing
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option "-B" for speed improvements. Example: reduce 720x480 to
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352x240 with "-B 15,23,16".<br>
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</ul>
|
||
|
<p>
|
||
|
<a name=nvcd><h3>(S)VCD (480x480)</h3></a>
|
||
|
|
||
|
Super Video CD's have a less restricted format for audio (MP2, 44100 Hz,
|
||
|
32-384 kBits/s, stereo) and video (MPEG-2, 480x480, up to 2600
|
||
|
kBits/s VBR) parameter.
|
||
|
The preset profiles take care of the SVCD2.0 specification.
|
||
|
The default profile bitrate is 2376 kbps.
|
||
|
|
||
|
<ul>
|
||
|
<li> bbmpeg port to linux:<font color=red><bf>audio
|
||
|
downsampling reported BROKEN! Additionally use "-J resample".</b></font>
|
||
|
<br>
|
||
|
<ul><br>
|
||
|
<li> NTSC film encoded @ 23.976 -> (S)VCD @ 23.976 film mode:
|
||
|
<li> NTSC video encoded @ 29.97 -> (S)VCD @ 29.97 video mode:
|
||
|
<br>
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
transcode [...] -V -y mpeg -F s,2 -E 44100 -b 128 -o test</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
<br>
|
||
|
|
||
|
|
||
|
<li> DVD film encoded @ 23.976 --> (S)VCD @ 29.97 with 3:2 pulldown flags enabled:<br>
|
||
|
|
||
|
|
||
|
You may try to increase the bitrate for higher quality (X)VCD.
|
||
|
Most consumer DVD/(S)VCD player can cope with that.
|
||
|
|
||
|
This is done with a profile file <i>xsvcd.prof</i>, which contains the
|
||
|
following entries:<p>
|
||
|
|
||
|
<code>
|
||
|
#(S)VCD profile for improved quality<br>
|
||
|
fixed_vbv_delay = 1 <br>
|
||
|
vbv_buffer_size = 230<br>
|
||
|
cbr = 1<br>
|
||
|
cbr_bitrate = 4000000.0<br>
|
||
|
quant_value = 2<br>
|
||
|
qscale_type = 0<br>
|
||
|
vbr_mux = 0<br>
|
||
|
video_buf_size = 230<br>
|
||
|
use_comp_bitrate = 1<br>
|
||
|
</code>
|
||
|
<p>
|
||
|
|
||
|
and will bump up the bitrate to 4000 kbps. The additional
|
||
|
profile parameter are passed with the file name as a 3rd argument to "-F".
|
||
|
|
||
|
<br>
|
||
|
<font color=red><bf>audio
|
||
|
downsampling reported BROKEN! Additionally use "-J resample".</b></font>
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
transcode [...] -V -y mpeg -F s,2,xsvcd.prof --pulldown -E 44100 -b 128 -o test</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
</ul>
|
||
|
|
||
|
<br>
|
||
|
Multiplexing the files:
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
tcmplex -o test.mpg -i test.m2v -p test.mpa -m s</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
<p>
|
||
|
<li> mjpeg-tools interface:
|
||
|
|
||
|
<br>
|
||
|
<ul><br>
|
||
|
<li> NTSC film encoded @ 23.976 -> (S)VCD @ 23.976 film mode:
|
||
|
<li> NTSC video encoded @ 29.97 -> (S)VCD @ 29.97 video mode:
|
||
|
<br>
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
transcode [...] -V -y mpeg2enc,mp2enc -F 4 -Z 480x480
|
||
|
-E 44100 -b 128 -o test</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
<br>
|
||
|
|
||
|
You may try to increase the bitrate for higher quality (X)VCD.
|
||
|
Most consumer DVD/(S)VCD player can cope with that. You can
|
||
|
pass more options to "mpeg2enc" as a 2nd argument to "-F". In this
|
||
|
case you must use profile "-F 5".
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
transcode [...] -V -y mpeg2enc,mp2enc -F 5,"-b 4000" -Z 480x480 -E 44100 -b 128 -o test</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
<p>
|
||
|
Replace "-Z 480x480" by <i>transcode</i>'s fast resizing
|
||
|
option "-B" for speed improvements. Example: reduce 720x480 to
|
||
|
480x480 with "-B 0,15,16".
|
||
|
<br>
|
||
|
Multiplexing the files:
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
mplex -f 4 -S 680 -o test.mpg test.m2v test.mpa</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
<br> or for "-F 5" profile with increased bitrate
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
mplex -f 5 -S 680 -o test.mpg test.m2v test.mpa</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
<br>
|
||
|
See the <i>mplex</i> manpage for more options.
|
||
|
|
||
|
</ul>
|
||
|
<br>
|
||
|
|
||
|
|
||
|
<a name=ndvd><h3>DVD compliant format</h3></a>
|
||
|
|
||
|
Possible frame parameter combination: 720x480, 704x480, 352x480 and 352x240.<br>
|
||
|
For a video frame size of 352x240, resizing can be delegated to the
|
||
|
export module with "-F d,4", but this frame size is currently broken
|
||
|
in the exncoder, all other
|
||
|
values require use of transcode's resize options. The profile default
|
||
|
bitrate is 9800 kbps.
|
||
|
|
||
|
<ul>
|
||
|
<li> bbmpeg port to linux:
|
||
|
|
||
|
<ul> <br>
|
||
|
<li> NTSC film encoded @ 23.976 -> DVD @ 23.976 film mode:
|
||
|
<li> NTSC video encoded @ 29.97 -> DVD @ 29.97 video mode:
|
||
|
<br>
|
||
|
|
||
|
|
||
|
<ul><br>
|
||
|
<li> MP2 audio:<font color=red><bf>audio
|
||
|
downsampling reported BROKEN! Additionally use "-J resample".</b></font>
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
transcode [...] -V -y mpeg -F d -E 44100 -b 128 -o test</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
tcmplex -o test.vob -i test.m2v -p test.mpa -m d</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
|
||
|
|
||
|
<br>
|
||
|
<li> MP3 audio:<font color=red><bf>fixed in 0.6.0rc2</b></font>
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
transcode [...] -V -y mpeg,raw -F d -m test.mp3</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
tcmplex -o test.vob -i test.m2v -p test.mp3 -m d</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
<br>
|
||
|
<li> PCM audio: (not yet supported by <i>tcmplex</i>)
|
||
|
</ul>
|
||
|
<p>
|
||
|
|
||
|
<li> DVD film encoded @ 23.976 --> DVD @ 29.97 with 3:2 pulldown flags enabled:<br>
|
||
|
|
||
|
In most cases, you will also wish to reduce the bitrate for
|
||
|
encoding. This is done with a profile file <i>dvd.prof</i>, which contains the
|
||
|
following entry:<p>
|
||
|
|
||
|
<code>
|
||
|
#DVD profile with reduced bitrate <br>
|
||
|
max_bitrate=4000000.0
|
||
|
</code>
|
||
|
<p>
|
||
|
|
||
|
and will reduce the bitrate to 4000 kbps. The
|
||
|
profile name is passed as a 3rd argument to "-F".
|
||
|
|
||
|
<ul><br>
|
||
|
<li> AC3 pass-through:
|
||
|
|
||
|
<table>
|
||
|
<tr>
|
||
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
transcode [...] -V -y mpeg,raw -F d,,dvd.prof --pulldown -m test.ac3 -A -0x2000</td>
|
||
|
</tr>
|
||
|
</table>
|
||
|
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
</ul>
|
||
|
|
||
|
</table>
|
||
|
</table>
|
||
|
|
||
|
|
||
|
<!-- hhmts start -->
|
||
|
Last modified: Tue Jun 18 12:57:25 CEST 2002
|
||
|
<!-- hhmts end -->
|
||
|
|
||
|
</body> </html>
|