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diff --git a/debian/transcode/transcode-1.1.7/docs/html/dv.html b/debian/transcode/transcode-1.1.7/docs/html/dv.html new file mode 100644 index 00000000..e1763513 --- /dev/null +++ b/debian/transcode/transcode-1.1.7/docs/html/dv.html @@ -0,0 +1,306 @@ +<html> +<head> +<title> Linux Video Stream Processing Tool - Examples</title> +<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> +<meta name="keywords" content="DVD, digital video, DV, encoder, divx, +DivX;-), lame, source, posix, avifile, opendivx, codec, linux, AC3, +program stream, video, audio, transcode, decoder, stream, YV12"> +</head> + +<body bgcolor=#CDB5CD> + + +<a name=top></a> +<table cellspacing="10" cellpadding="0" border="0" width="100%"> + <tr> + <td align=left valign="top" width=30% bgcolor="#a0a0a0"> + <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%> + <td align="left" bgcolor="#e9e9e9"> <FONT + FACE="Lucida,Helvetica"> <font>Digital Video</font> + </tr> + <tr> + <td> + + This chapter gives an introduction to Digital Video + processing with transcode. Here is a list of features: + + <ul> + <li> AVI-files with Digital Video streams can be + decoded with + <ul> + <li><i>libdv</i> (default) + <li><i>ffmpeg</i> (-x ffmpeg) + </ul> + + <li> concatenating clips with directory mode and option "-i <i>direname</i>" + before processing. + <li> a couple of fast or high-quality de-interlace + <a href=filter.html#video>filters</a> available to + enhance the quality. + <li> support for encoding to DV with <i>libdv</i> as raw + stream or interleaved AVI-file. + <li> pass-through mode: raw DV -> AVI-file conversion. + </ul> + + Unfortunately, while most linux player happily accept the AVI-DV files + produced by <i>transcode</i>, the nonlinear DV video + editor <a href=http://www.schirmacher.de/arne/kino/><i>kino</i></a> + refuses to work with them. + + <ul> + <li> <a href="dv.html#dv"> <FONT FACE="Lucida,Helvetica"> + Digital Video DV</font></a> + <ul> + <li><a href="dv.html#dv_avi"> <FONT FACE="Lucida,Helvetica"> + AVI files</font></a> + <li><a href="dv.html#dv_dv"> <FONT FACE="Lucida,Helvetica"> + DV streams</font></a> + </ul> + <p> + <li> <a href="#pass"> <FONT FACE="Lucida,Helvetica"> + pass-through mode</font></a> <p> + <li> <a href="#interlace"> <FONT FACE="Lucida,Helvetica"> + de-interlacing guide</font></a> <p> + <li> <a href="#alias"> <FONT FACE="Lucida,Helvetica"> + anti-aliasing guide</font></a> + + </td> + </tr> +</table> +</table> + + +<a name=dv></a> +<table cellspacing="10" cellpadding="0" border="0" width="100%"> + <tr> + <td align=left valign="top" width=30% bgcolor="#a0a0a0"> + <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%> + <td align="left" bgcolor="#e9e9e9"> + + <font>Digital Video (DV) + ---> MPEG-4</font> + </tr> + <tr> + <td> + + Here is a 3 step guide to convert a DV tape to a compressed AVI + MPEG-4 movie clip under linux using <i>transcode</i>. For a + selection of a video codec implementation supported by + transcode consult the <a href=modules.html> modules</a> info-page. + + <ul> + <li> You need Arne Schirmacher's nice tool <i>dvgrab</I> + to transfer the DV tape to disk. Make sure, you use + the "--format dv2" option and maybe "--autosplit" to split + the tape into small pieces. Use AVI files, since + libdv sound seems to be broken. Optionally, use <br><br> + <FONT color=red> tcprobe -i file.avi <br><br> + </i> to find out important parameters: For example: + + <p><code> + +[tcprobe] RIFF data, AVI video +[avilib] V: 25.000 fps, codec=dvsd, frames=633, width=720, height=576 <br> +[avilib] A: 48000 Hz, format=0x01, bits=16, channels=2, bitrate=1536 + kbps, <br> +[avilib] 633 chunks, 4861528 bytes <br> +[tcprobe] summary for test-2002.10.04_14-47-25.avi, (*) = not default, 0 = not detected<br> +import frame size: -g 720x576 [720x576] <br> + frame rate: -f 25.000 [25.000] frc=3 <br> + audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x1 [0x2000] (*) + bitrate=1536 kbps <br> + length: 633 frames, frame_time=40 msec <br> +</code><p> + + Fortunately, the auto-probing feature + of <i>transcode</i> takes care of these details. + <br><br> + + <li> To encode the clips, we have a number of options: + + <ul> + <li> writing a shell script, that feeds transcode with each + file, + <li> using <i>avimerge</i> to create a single + input file, + + <li> using the directory mode with option "-i". This + works only in connection with the import module <i>import_dv.so</i>. + </ul> + + <a name=dv_avi><h3>AVI-file</h3></a> + + Here, + we use a single AVI-file <i>file.avi</i> with "dvsd" codec + as an example: <p> + + + <table> + <tr> + <td align=left valign="top" bgcolor="#ccffcc"> + transcode</td> + + <td align=left valign="top" bgcolor="#ccffcc"> + -i file.avi -x dv,avi</td> + </tr> + + <tr><td></td> + <td align=left valign="top" bgcolor="#ccffcc"> + -I 1 -C 1 -z -k </td> + </tr> + + <td></td><td align=left valign="top" bgcolor="#ccffcc"> + -o file-divxmp3.avi -y divx4</td></tr> + + </table> + + <br> + + We use <i>import_avi.so</i> to extract the audio, + which works flawless. Note that the audio is found in two + places in the AVI-file. Firstly, interleaved in the DV video + frame and secondly, the PCM audio track itself. + This makes it possible to use the import module "dv" for audio + extraction as long <i>libdv</i> is broken.<br> + Note: some non-dvgrab produced AVI-files may have the audio + ripped from the DV frames. In this case, you must use "-x + dv,avi" or "-x dv,X", were X is one of (raw,mp3,ac3). +<br> + + You can also reduce + the picture to a quarter size "-r 2" to get rid of + the interlace artifacts and don't need the de-interlace + option "-I 1". This option is the fastes de-interlacing + available, but is a simple interpolation. + You might also want to try + out the anti-aliasing feature with "-C 1" to process the + whole frame but this is slow. + The option "-z -k" flips the frame and make the + necessary color space changes for the encoder. + + + <a name=dv_dv><h3>DV stream</h3></a> + + Put all AVI-files or raw DV stream into a subdirectory, + e.g., named "tape/". <p> + + + <table> + <tr> + <td align=left valign="top" bgcolor="#ccffcc"> + transcode</td> + + <td align=left valign="top" bgcolor="#ccffcc"> + -i tape/ </td> + </tr> + + <tr><td></td> + <td align=left valign="top" bgcolor="#ccffcc"> + -I 3 -C 2 -z -k </td> + </tr> + + <td></td><td align=left valign="top" bgcolor="#ccffcc"> + -o tape-divxmp3.avi -y divx4</td></tr> + + </table> + + <br> + + The necessary import module is autodetected. <i>tccat</i> extracts + the video stream of all AVI-files and concatenates them together to + make the clips appear as a single DV stream for <i>transcode</i>. + + Here, the de-interlace option "-I 3", + which drops one half-frame and interpolates by zooming to full + frame size and, in principle, removes the interlace artifacts. We also try + the anti-aliasing feature with "-C 2" to process the + full frame afterwards, but this is slow. + <p> + + <li> Well, that's it. Use <i>avimerge</i> to glue the + matching clips together and burn the resulting file + to CD. +</ul> +</TV> +</table> +</table> + + +<a name=pass></a> +<table cellspacing="10" cellpadding="0" border="0" width="100%"> + <tr> + <td align=left valign="top" width=30% bgcolor="#a0a0a0"> + <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%> + <td align="left" bgcolor="#e9e9e9"> + + <font>pass-through mode</font> + </tr> + <tr> + <td> + The pass-through mode is able to wrap raw Digital Video + streams into AVI-files with the following command. Note, that + the interleaved raw audio data can be transcoded to a separate + audio track with the codec of your choice. However, this + does not save space since Digital Video has identical frame + size independent of the presence of audio. + + <p> + <code> + transcode -i raw.dv -P 1 -o raw.avi -y raw + </code> + <p> + + The opposite way is achieved by: + + <p> + <code> + tcextract -i raw.avi -x raw > raw.dv + </code> + <p> + +</table> +</table> + +<a name=interlace></a> +<table cellspacing="10" cellpadding="0" border="0" width="100%"> + <tr> + <td align=left valign="top" width=30% bgcolor="#a0a0a0"> + <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%> + <td align="left" bgcolor="#e9e9e9"> + + <font>de-interlacing guide</font> + </tr> + <tr> + <td> + + Underway. + Tilmann Bitterberg did some testing of de-interlace filters available in + transcode. You can view and read the result + <a href=http://tibit.org/video/> here</a>. +</table> +</table> + + +<a name=alias></a> +<table cellspacing="10" cellpadding="0" border="0" width="100%"> + <tr> + <td align=left valign="top" width=30% bgcolor="#a0a0a0"> + <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%> + <td align="left" bgcolor="#e9e9e9"> + + <font>anti-aliasing guide</font> + </tr> + <tr> + <td> + + Underway. + +</table> +</table> + + +<!-- hhmts start --> +Last modified: Fri Dec 6 16:25:56 Europe/Berlin 2002 +<!-- hhmts end --> + +</body> </html> |