similar to: example_encoder.c patch to read successfully from FIFOs

Hello, I'm new to the list, so if this is an FAQ, please point me to the relevant docs. I'm playing with Theora, to see what kind of quality I can expect (I realise its not for production use yet). I've download the source from CVS, and got it to build, with the example encoder and player. While trying to find something to serve as a good source of input, I decided I'd use a

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

Hey all, I've setup a simple page that just displays a live webcam stream of me at work, and it supposedly falls back onto Cortado if your browser doesn't support the <video> tag. The URL is here: http://media.basilgohar.com/stream/ There's been a lot of talk about live streaming and low bitrate streams. Here is my command line (I've posted this before): time ffmpeg -f

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

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

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

Hi, I decided to try Theora and encoded a PAL DVD. I was very pleased with the result. It's better than "DiVX" for the same bitrate, I think, and the audio is clearly superior to MP3 audio. However, I'm having serious troubles encoding NTSC DVDs and getting the video and audio durations to match. I read some messages on this list about such problems and so what I am doing

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

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 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

Hello, I encoded a bunch of theora video files from my DVDs. I thought for a long time that mplayer was broken because it displayed the aspect ratio wrong. Then I found out that the aspect ratio I was specifying was supposed to be the pixel aspect ratio, not the video aspect ratio. (This is extremely confusing and I urge you to change the semantics of encoder_example. I also urge you to check for

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.

I picked up the imported Feb 2005 issue of "Linux Format", in part for the Theora article...and I was pleasantly surprised to see my mouldering old "Ogg-Theora Micro-howto[1]" document referenced. I figured that meant people might still be finding it useful, so I felt it was time to dust it off and update it. I also noticed that archive.org now has a small but growing

Hi, I wrote a plugin to enable LiVES (a video editor) to encode theora/vorbis/ogg files. I'm looking for some advice towards improving quality. If someone would like to help me test this please note that you'll need MPlayer, ImageMagick, sox, the encoder_example from libtheora (somewhere in the PATH), and Python 2.3.0 (this is fairly all standard stuff). Consider the following clip:

Hi, I sent this message to the theora list but I'm not sure if it got through (activity seems to be very low, regardless). I'm hoping I have better luck here. I wrote a plugin to enable LiVES (a video editor) to encode theora/vorbis/ogg files. I'm looking for some advice towards improving quality. If someone would like to help me test this please note that you'll need MPlayer,

(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.

I apologize if the list has received this message twice, the first time I wrote it I neglected to subscribe, but never saw it come up in the archives. I have improved encoder_example.c so that it can read both PCM and YUV data from MPlayer via named pipes. Previously it was necessary to write at least one of these decompressed streams to disk as the fifo buffers would fill otherwize.

Hi, I'm a highschool student, I'm looking for information about converting Wave file (*.wav) into Ogg file (*.ogg) and i found encoder_example.c inside libvorbis's example directory. I try to compile it using Microsoft Visual C++ 6.0 ,but it goes error like this : --------------------Configuration: encoder_example - Win32 Debug-------------------- Linking... encoder_example.obj :

Here is a patch that prevents the example encoder from rejecting some wav files that ffmpeg generates. The problem was that it wasn't properly handling the case where extra bytes were added to the header and they weren't a multiple of 4 bytes. This fixes that problem by getting the number of extra bytes in the header and reading that much data. Aaron Index: encoder_example.c

Hello, I'm trying to get theora built. However there is not a page listing what depdencies there are. Would it be possible to have a developers page with the point release tarballs etc? (There is subversion access, but I do not have subversion for my OS). I could not find libtheora release, only an alpha, this wasn't very clear, it has been released now I think. The libogg and