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diff --git a/debian/transcode/transcode-1.1.7/docs/faq b/debian/transcode/transcode-1.1.7/docs/faq new file mode 100644 index 00000000..139941d3 --- /dev/null +++ b/debian/transcode/transcode-1.1.7/docs/faq @@ -0,0 +1,298 @@ +---- +Q: I am using version 0.6.x where x <= 14, and I'm having + some sort of problem +A: Upgrade to the CVS version, this is the only version + that is supported. +--- +Q: How do I obtain transcode from CVS +A: There are instructions available at + http://www.transcoding.org/#cvs (tibit) +--- +Q: I now got transcode from CVS, how do I compile + and install it? +A: See the INSTALL file. +--- +Q: So I got transcode from CVS and compiled it according + to the directions in the INSTALL file, and now I (still) + have some sort of problem +A: Join the transcode-users mailing list + (see www.transcoding.org) and check the archive if + your problem has been discussed at the mailing list before. +--- +Q: I still have a problem and it hasn't been discussed before. +A: If your problem is that transcode "hangs" without doing anything, + that is a known problem which is hard to solve. Often running + transcode this way: "env LD_ASSUME_KERNEL=2.4.0 transcode ..." + seems to help. +--- +Q: I still have a problem and it's not that transcode + hangs. +A: If your problem is that transcode is killed by a signal + (e.g. segmentation fault), perform these steps (carefully!) + - recompile transcode for debugging (see the INSTALL file + for details) + - install it + - start transcode from within gdb like this: + $ gdb transcode + (gdb) <transcode command line options> + - when gdb stops, type these commands: + (gdb) where + (gdb) bt full + - now file a bug report in transcode-users, including: + * the complete transcode command line your're using + * the complete output of the transcode run, with option -q 2 + * the output of gdb + - only with a full bug report we can do ANYTHING at all. +--- +Q: How do I make a copy of a DVD-9 +A: For german reading users here is a link http://linuxwiki.de/DvdAuthoring (felix) +--- +Q: Finally, there's the questions about the justly infamous + ffmpeg.cfg file. What are all the parameters and what do + they mean? +A: The easiest way to find out is to look at the mplayer manpage at + http://www.mplayerhq.hu/DOCS/man/en/manpage.html#CODEC%20SPECIFIC%20ENCODING%20OPTIONS%20(MENCODER%20ONLY) + and scroll down to "lavc"<br /> + If you\'re just going to encode to (S)VCD or DVD, you\'d better use the + profile support. + In transcode, you can put these options into a config file (use -q2 to + generate one) called ffmpeg.cfg (ems, tibit) +--- +Q: What's the difference between -j and -Y? +A: This one I know. The difference between -j and -Y is only + the order that transcode does the clipping. In the manual + page we find + + The video frame operations ordering is fixed: + "-j -I -X -B -Z -Y -r -z -l -k -K -G -C" + (executed from left to right). + + So if one needs to do frame clipping and resizing, in a + specific order, he can choose the apropriate transcode + options. + + For instance, if one wants to clip and then resize the + video frame, in this order, he can use -j (clip) and + -B (resize). In this case -Y and -B would not work, as + the operation -Y is done after -B. + + There are still two other options for clipping: + --pre_clip (executed before -j) and + --post_clip (executed after -Y). (ems) +--- +Q: How do I transcode an avi to mpeg? +PA: (Partial answer) In this form, your question cannot + easily be answered. You're talking of _container_ + formats (avi, mpeg) while you probably mean _codec_ + formats. + <br /> + A _container_ is a file format designed to hold both + audio and video (and sometimes more) data in a way that + a player application can play them back properly (that + means, with audio and video synchronised). + <br /> + Examples of container formats are avi, mpeg-ps, mpeg-ts, + asf, quicktime, mp4. + <br /> + The _codec_ on the other hand, determines what's inside + the _container_, it is the (compressed) video or audio + data itself. + <br /> + Examples of video codecs are: mpeg1, mpeg2, mpeg4 (aka + "divx", "xvid"), realvideo, wmv, dv. + <br /> + Examples of audio codecs are: mpeg1-layer2 (aka "mp2"), + mpeg1-layer3 (aka "mp3"), wma, aac, pcm. + <br /> + BTW in avi container files, there's mostly mpeg4 video + content and mp3 audio content (although this is + absolutely not obligatory, use tcprobe to find out). + If you want to burn material on a SVCD or DVD, you need + to have the video in mpeg2, the audio in mp2 (or ac3 in + case of DVD) and both of these in a mpeg-ps (program + stream aka "vob") container. + + With this information you should be able to refrase + your question a get a proper answer ;-) (ems) +--- +Q: Peoples' faces are purple! +A1: This probably means that the u and v planes (Cr/Cb) are + being swapped. As there is no clean definition whether u + should be Cr or Cb (and vv), this easily happens. (ems) +A2: I solved this problem with the -k option to transcode. + People are no longer purple. Hence, if you're transcoding + from YUY2 to YV12 and you get purple people, you need + to use the -k option. (ems) +--- +Q: People are upside-down! +A: Use -z. Usually it goes away when you turn on YUV mode with -V. (tibit) +--- +Q: I have installed latest transcode tool from source and + then from rpm. Whenever I run program it falls over as + it cannot find export_mp2enc.so. +A: RPM packages of some distributions are not complete. This is a + general problem. If you want to use the mpeg2enc export module, you + will have to compile transcode yourself, or try to find a complete rpm + on the net. (ems) +--- +Q: Do I need the avifile library to write AVI files? +A: No. Transcode has its own library for writing AVI files. The avifile + library is used to enable support for win32 binary codecs. The libavcodec + from the ffmpeg project has a free implementation for most of these codecs + anyway. (tibit) +--- +Q: Help! I got lots of "no"s after running ./configure! +A: This is not necessarily a bad thing. transcode has configure checks + for some very "obscure" import and export codecs which you probably + never use anyway. <br /> + If you are sure you have a specific library installed and transcode still + does not find it, have a look at config.log to find out the reason. (tibit) +--- +Q: When trying to read a DVD I get something like + <tt> (dvd_reader.c) no support for DVD reading configured - exit. </tt> + What am I missing, ie what do I need to do to fix it? +A: You have probably installed transcode from source and you are missing + the dvdread library. This library (including the -devel packages) must be + installed at compile time and transcode must find it. If transcode + found it, it will print <tt>"DVD navigation support with libdvdread + yes"</tt> at the end of the configure run. (tibit) +--- +Q: I am missing the mp3 import module (import_mp3.so)! +A: You need to have a recent lame library installed. Including all header + files (-devel package) (tibit) +--- +Q: How do I calculate the best tcrequant number from within a script + when going from a DVD9 to a DVD5? +A: Once you have separated (using tcextract) the audio and the video, + get the file sizes of the audio and video files. If you are burning to + a DVD5, the maximum image size is 4700000000. So the following + equation will give you a 'best fit' number. 1.04 is a fudge factor to + leave space for the file system and other overhead. + <br /> + If you are including more that one audio stream or a subtitle stream, + those filesizes must also be subtracted from the maximum dvd image size. + + <pre> + requant_factor = (video_size / (dvdmax_size - audio_size)) * 1.04; + tcrequant -i ofile.m2v -o movie.m2v -f requant_factor + </pre> (cooper) +--- +Q: What options to set in ~/.transcode/ffmpeg.cfg for encoding to dvd with + ffmpeg, when not using profile support +A: <pre>vrc_minrate=0 + vrc_maxrate=9800 + vrc_buf_size=1792 + + </pre> + If ratecontrol still is insufficient, try: + <pre> + lmin=0 + lmax=10000 + + </pre> + (try lower lmax if still not right) (ems). +--- +Q: What does "Can't step back 17" (or similar) means? +A: This message comes from the mp3 decoder (lame). It means (since + mp3 has interdependent chunks) that one ore more previous mp3 + chunks are missing "Can't step back ...". This usually happens when + the file was split at some time. + There is not much you can do about it. (tibit) +--- +Q: I have problems encoding with the divx4linux libraries from divx.com +A: Transcode ships two divx encoder modules. One is divx4 and one is divx5. + Please note that the `4' in divx_4_linux only stands for the word "for" + it does <b>not</b> denote the version number.<br /> + Use -y divx4 if you have a really old version of the divx4linux + libraries installed. The divx5 export module is usuable depended on the + divx4linux libraries you had installed when you compiled transcode. The + Developers from divx.com changed their API in a backwards incompatible + way causeing that -y divx5 either supports the new API or the old one. + They are mutually exclusive. So if you have problems with -y divx4 try + -y divx5. + <br /> + Please note that the current version of the divx4linux libraries + available form divx.com have a bug on they may segfault on Pentium4 + systems. There is another bug in older versions of divx4linux where it + crashes when writting data to a FAT32 windows partition. Look at + http://www.exit1.org/dvdrip/doc/faq.cipp#faq11 + <br /> +--- +Q: transcode cannot find libdivxdecore.so/libdivxencore.so/libxvidcore.so ... +A: The best place to put these libraries is the transcode libdir + (/usr/local/lib/transcode/ by default). You can find out the libdir of + your transcode installation by executing <tt>tcmodinfo -p</tt>. + Transcode will look into this libdir first when searching for a + library. When that fails, transcode will look at the standard library + locations. You should make sure that the location of the library is in + <tt>/etc/ld.so.conf</tt> and don't forget to run ldconfig afterwards. + You do not need to put the transcode libdir into the dlloader config + file. +--- +Q: I have VOB files from a DVD which transcode won\'t encode + correctly. At some point, there\'s a \"broken stream\" error, + and in the resulting AVI the picture exhibits some artifacts at + that point and the AV sync is gone from there on. The VOB files + can be played back perfectly without any problems with various + players, though. +A: First, concatenate the VOB files into a single file all.vob . + Next, use mencoder to generate an AVI file: + <pre> + mencoder all.vob -o all.avi -ovc copy -oac copy + + </pre> + Then process the AVI file with transcode. If mencoder crashes + (as it did on my system), use + <pre> + mencoder all.vob -o all_noaudio.avi -ovc copy -nosound + + </pre> + which will give you an AVI without sound. Transcode this: + <pre> + transcode -i all_noaudio.avi -x mpeg2,null -y xvid,null \\ + -V -R 1 -o /dev/null --print_status 100 + transcode -i all_noaudio.avi -x mpeg2,null -y xvid,null \\ + -V -R 2 -o transcoded_noaudio.avi --print_status 100 + + </pre> + Assuming that the \"broken\" AVI file transcode generated before + is called broken.avi, extract the audio with + <pre> + tcextract -i broken.avi -x mp3 -a 0 > all.mp3 + + </pre> + and finally merge audio and video with + + <pre> + avimerge -i all_noaudio.avi -p all.mp3 -o complete.avi + + </pre> + This can probably be improved; I was happy enough that it + worked. (meier) +--- +Q: How can I save the audio track of a DVD directly to a WAVE file + suitable for burning onto an AudioCD? +A: Suppose you want the audio from title 2, all chapters and you want the + second audio stream: + <pre> + transcode -x null,dvd -i /dev/dvd -T2,-1 -a 1 \\ + -y wav -J resample -E 44100 -o foo.wav + + </pre> + The resampling is needed since DVD audio is usually sampled at 48 + kHz. (tibit) +--- +Q: How do I transfer my .avi .mpg .mov. asf .wmv etc. files to DVD so that + they playback on my stand-alone DVD player ? +A: A step by step howto can be found at + http://mightylegends.zapto.org/dvd/dvdauthor_howto.php (rickfharris) +--- +Q: What do I need to get the import_im and import_imlist modules? +A: These modules use the ImageMagick library from + http://www.imagemagick.org +--- +Q: I do have ImageMagick including the -devel package installed and still + get no import_im and import_imlist module. +A: Some distributions ship a ImageMagick-devel package which also needs + bzip2-devel package installed. Check config.log for details. +--- |