similar to: Encoding with encoder_example

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

Hi, While creating identification header in the function * theora_encode_heade*r in *encoder_toplevel.c*, it assigns bits not mentioned in the current theora spec released on Octomber 29, 2007 (page 40 &41). But this implementation in function* theora_encode_heade*r is correct according to the *Figure 6.2 (page 42)*. But not according to the *table mentioned in pages 40 &

Hi all I have the raw out put of a video camera in following format: mjpegb, yuvj422p, 1920x1080, 24.00 fps(r). I cannot directly convert this raw footage to Theora due to the YUV4MPEG2 only restriction of the encoder_example. Isn't it better to support other raw formats in encoder_example, such as what I have, mjpegb, yuvj422p? I presume even if I convert the mjpegb, yuvj422p to

Hi, I am a beginner for theora. Now I am trying to understand the code of theora codec. If you can show me the correct path for understand the code (which codes must understand first), it may be easy to understand code properly. -- Nuwan Millawitiya

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

hello everybody, I would like to participate in GSoC 2008 program under xiph.org. I went through the open project list[1] and found the project " Theora encoding support in GIMP" proposal interesting. I'd really grateful to you if you can give me more information on this, including 1. Why GIMP need encoding support? 2.If you have any guidance in integrating encoding support for GIMP

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.

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

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

Hi, Can we encode a normal stream in to black & white video using exsisting encoder_example in theora_beta2. Is it required to change encoder_example file to do that? So please guide to do that. Thanks... -- ___ -------------- next part -------------- An HTML attachment was scrubbed... URL:

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

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

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 :

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.

(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.

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

Hi, We want to get a B&W output from any video input (B&W or Color). So when we encoded into B&W video compression will be increased is it correct? Can we archive this by a existing encoder_example. -- ___ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora/attachments/20080121/c1d1b3c1/attachment.htm

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

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