similar to: Encoding from fifo's

Greetings, I was on IRC about 7 hours ago and suggested that the FAQ be updated slightly. Rather than sit on my ass and complain I figured I'd ask a few people, and see if the idea was worth the time. Here's what Ive started with: http://www.dimension.net.nz/theora.html I'll be adding to it over the next 24 hours - mostly in the area of Playback and Encoding. Just threw it together

Okay, thanks to some stubbornness on my part and helpfulness on the part of people on this mailing list, I got the Ogg Theora alpha compiled up and installed and running. Yesterday, I went to the Prelinger archives (the public-domain video archive at www.archive.com) to find a high-quality original to re-encode as a test. The encoder worked just fine, and playback as well, and I thought I'd

Hi, I sent the message below a couple of months ago but I got no reply. Now that there's more activity perhaps someone could kindly provide me some guidance. Theora is great and the developers are doing a wonderful job, so I'd like to implement the codec in a way which does it justice... Original post: I wrote a plugin to enable LiVES (a video editor) to encode theora/vorbis/ogg files.

Hello. I'm trying to encode an Ogg Theora file from an unencrypted dvd using mplayer and encoder_example. I set up named pipes stream.wav and stream.yuv. I then run: mplayer -ao pcm -aofile stream.wav -vo null /dev/dvd & mplayer -vo yuv4mpeg -ao null -nosound /dev/dvd & encoder_example -v1 -a 1 stream.wav stream.yuv > lec1.ogg but I get the following error: File stream.wav is

As was briefly discussed on IRC, ffmpeg and mplayer currently output two somewhat incompatible YUV4MPEG streams. This meant that encoder_example could take input from mplayer, but not ffmpeg or movtoy4m (a QuickTime->Y4M tool). This is a patch that fixes this issue and should allow encoder_example to take input from either format: diff -urd xiph-cvs/theora/examples/encoder_example.c

After a bunch of cumbersome testing I was able to transcode a Quicktime MOV file to OGG with theora and Vorbis. The method's a bit fumbly, but it works... It is automatable except for the initial audio decoding. Software used: Xine, oggenc, ffmpeg, ffmpeg2theora, oggzmerge Step 1: Get the video out of Quicktime ffmpeg -i infile.mov -b 5000 -f mpeg2video outfile.mpg Step 2: Get the video

Hello, Could you kindly point me to some instruction, how to encode demuxed files (.m2v and .mp2) to .ogg (Theora + Vorbis)? I was trying to use ffmpeg2theora, but I don't know, how to put two files to ffmpeg2theora (one audio an one video) and did not found, how to mux them into one file? Exist a way, how to do two pass encoding? I'm using Ubuntu Fiesty Linux. Thank you, Jiri Navratil

hi all, i tried to encode a .yuv file with the encoder_example.c but it give an error message as follows ./encoder_example -v 1 file_1.yuv > file_1.ogg Input file file_1.yuv is neither a WAV nor YUV4MPEG2 file. so the error message is understandable for anyone. when this file is play with mplayer it shows as follow

I tried to encode some video from a DVD with encoder_example and ffmpeg2theora, and it looked great, except that with both encoders the A/V sync would drift noticeably after about 10 minutes, and by the end of a two hour movie it would be a couple seconds off. So instead of just whining about this and waiting for someone else to fix it, I decided to try to learn about what's causing the

Hello! I'm trying to use ffmpeg2theora to encode raw (.yuv) files in I420 format (just frames, no headers at all), but failed to find corresponding input format. Is there any documentation of supported formats for ffmpeg2theora? Or maybe there is another command-line tool for Windows to encode raw video using Theora algorithm? Thank you for help! Alexander.

(Theora/Vorbis) available. Message-ID: <410011E4.2040904@hut.fi> Hello, I noticed that it's quite difficult currently to create Ogg format files (Ogg Theora for video and Ogg Vorbis for audio). There's only the encoder_example-program, which is included in the libtheora source packages, but seemingly not in any libtheora/libtheora-devel packages that are around the web for e.g.

My first guess about the problem would be that the programs want to process the stuff in a different order, e.g. mplayer wants to output some sound before anymore video and encoder_example wants to receive some video before anymore sound. This could easily depend on the order of stuff in the file mplayer is reading. I guess something similar could happen for opening the pipes as well. The

Hello, I am looking for a way to convert VCD tracks to theora. I'd rather a command line tool. What would you suggest me? I already found I can do that with mplayer, by ripping to yuv and wav, then using the encoder_example to compress to theora, but would there be another better way? -- ASPO Infog?rance http://aspo.rktmb.org/activites/infogerance Unofficial FAQ fcolc

i am new in this mailing list i have written a script for theora (i am not sure that it is useful or not ? ) ========================================== #!/usr/bin/perl # ALL2theora based on Florian Schilhabel <florian.schilhabel@web.de> dvd2divx script (was under GPL) # we have made major changes to that script and now it can convert almost all video format to theora # all2theora depends

On Tue, Nov 08, 2005 at 09:36:52PM +0800, illiminable wrote: > > Then there's YUY2 which is interleaved Y0 U0 Y1 V0 Y2 U1 Y3 V1, and YVYU > (Y0 V0 Y1 U0 Y2 V1 Y3 U1), and UYVY (U0 Y0 V0 Y1 U0 Y2 V0 Y3)... and then > there's AYUV, which has a 4th alpha channel. We will only be doing [A]YUV ordered planar encoding, no other order, not packed using one of several methods.

On Tue, Nov 08, 2005 at 09:36:52PM +0800, illiminable wrote: > > Then there's YUY2 which is interleaved Y0 U0 Y1 V0 Y2 U1 Y3 V1, and YVYU > (Y0 V0 Y1 U0 Y2 V1 Y3 U1), and UYVY (U0 Y0 V0 Y1 U0 Y2 V0 Y3)... and then > there's AYUV, which has a 4th alpha channel. We will only be doing [A]YUV ordered planar encoding, no other order, not packed using one of several methods.

I did a little poking about with the pcm-from-fifo problem I was having... What I'm attempting to do is an on-the-fly export from one file using mplayer to generate yuv4mpeg video frames and pcm audio, piped through fifo's. This DOES work with mpeg2enc/mp2enc, so I'm assuming it's not a problem with, e.g., my filesystem... the example encoder appears to successfully open and

Hi, I'm switching from the mainstream theora trunk to the exp one and I encounter a problem with the encoder. Every video I encode are played like a 'mosaic', I do not know how to say that. The picture is just a bunch of coloured pixels. During the encoding process the video stream is defined like that: File stream.yuv is 320x240 15.00 fps 420 video. Why 420 ? Why not YUV like for

I have encoded successfully a YUV stream by using the encoder_example. Can We encode a row stream (get from a web cam) by using encoder_example. If we can not, is there any other way to encode a row stream by using theora codec. -- Nuwan Millawitiya -------------- next part -------------- An HTML attachment was scrubbed... URL:

I have encoded successfully a YUV stream by using the encoder_example. Can We encode a row stream (get from a web cam) by using encoder_example. If we can not, is there any other way to encode a row stream by using theora codec. -- Nuwan Millawitiya -------------- next part -------------- An HTML attachment was scrubbed... URL: