similar to: Why are file extensions bad?

Hi All, On the Xiph Wiki page at: https://wiki.xiph.org/MIME_Types_and_File_Extensions I added Opus to several of the sections, but wasn't sure whether to add "Theora + Opus" to: .ogv - video/ogg .axv - video/annodex As far as I can tell, according to the Opus FAQ at: https://wiki.xiph.org/OpusFAQ#Will_Opus_replace_Vorbis_in_video_files.3F Theora + Opus is

Alright folks, here's the solution. 1) Keep extensions to 3 letters for audio & video. Except for special situations where the user might be doing a codec specific name. Since the official extensions are 3 letters, those can always be used on any 8.3 device. 2) introduce a new extension .OGV for ogg container video. With a strong preference for Xiph only codecs. (If you want 3rd

Hello, hope you can help me. I want to encode a video, which I have exported from Keynote (a program for presentation like MS Power Point) using ffmpeg2theora for html5 web delivery. The result only plays very buggy - frames are dropped, the video hangs and vlc can not output the correct length of the ogv video. Here is the source and the result for download, if you want to reproduce it: the

Hi, I didn't get to the bottom of it, but Valgrind is whining on libtheora when encoding a video to a 16 width or 16 height video. While you may think I'm weird for encoding to such a size, I didn't care about the output video, but I reckon it should work. The bad accesses seemed to be of pixel data, in FilterVert__c, and in FilterHorz__c (from memory), but I didn't investigate

Hi, in the past two days I wrote Python bindings to libtheora: http://github.com/certik/python-theora Currently it can read any ogv file (that seems to work quite well) and also encode to ogv (this mostly works, but there are some subtle issues to be fixed, I suspect I still have some bug in the way I half the dimensions of the Cb and Cr planes, so when you read ogv and write ogv, the resulting

Hi, I'm new here - thanks for having me. (Sorry if I'm in the wrong place or a noob.) I downloaded the Theora encoder sample (ver 1.1.1), modified it to encode a sequence of bitmaps, and created an OGV file. The OGV file plays fine in the latest VLC (1.0.5), but I can't do much else with it: I tried uploading to YouTube, and the video just comes out really corrupt:

Hello, I need to demux video files created with ffmpeg2theora 0.28+svn18147 I have ogminfo v1.5 and getting this error (ogminfo.c) OGG stream 1 is of an unknown type (bad header?) (ogminfo.c) OGG stream 2 is of an unknown type (bad header?) (ogminfo.c) (a1/serial 1092562206) Vorbis audio (channels 2 rate 48000) Is possible, that ogminfo is older then ffmpeg2theora ? Or what can be the reason?

Hi good people, Just to inform: I finally fed FFMpeg2Theora with a .VOB input, and the .OGV output produced played back beautifully in VLC, both audio and video. However, the same output .OGV file gave clicks and pops in the audio when fed through Directshow programs. I played it through Windows Mediaplayer as well as through Winamp, with the same crackles in the audio, and this leads me to

Hello, I would like to add a introduction video (typically a title with fade-in / fade-out) at the beginning of an Ogg/Theora video. I generated this intro video in Ogg/Theora from a sequence of png files. I would need to do this in an automatic script, because I have many such videos to process, and without doing any re-encoding step (which would be very costly because my videos are huge). I

Hi J., We are using ffmpeg2theora to produce an introduction video from a series of images: ffmpeg2theora-0.26.linux32.bin images/img-%03d.png -o intro.ogv The video that we get is huge and horrible, with lots of blinking colors: http://free-electrons.com/issues/ffmpeg2theora-mar5-2010/intro.ogv Here's what we had in the past:

Hi folks,I'm joining this list because I've encountered difficulties with the ogg tools. I'm running Windows, and can't find binaries for liboggz tools, such as oggz-merge.exe Can someone provide oggz-merge.exe? So I use ffmpeg (v19289) for muxing ffmpeg -y -i sync2.ogg -i sync.ogv -vcodec copy -acodec copy sync2.ogv but the framerate fluctuates wildly on playback, and ogginfo

Hi, I was really interested in the java version of the same since I wanted to use it in my java application in a platform independent way. Anybody who have managed to use the java port to encode wav to ogg, this is only audio, can assist me to solve my problem. I have been looking at the code and the svn but no updates seem to be available. Some guidance on what could be the problem on the source

I've made a start writing a Theora player for Series 60 phones (mostly Nokia phones, but some Samsung and Sony Ericsson ones too). Download here: http://symbianoggplay.sourceforge.net/OgvPlay/OgvPlay_010.zip I've been using Big Buck Bunny, Elephants Dream and a few other ogv files for testing. I've uploaded 320x180 versions of those here:

Hi, I am using oggz-chop in the ubuntu jaunty, am I doing something wrong? $ oggz-chop -o yt1.ogv -s0 -e500 ondrej.ogv Segmentation fault gdb session doesn't reveal much, since it isn't compiled with debugging symbols: (gdb) bt #0 0x00007f9e5d2f0092 in memcpy () from /lib/libc.so.6 #1 0x0000000000403698 in ?? () #2 0x000000000040262e in ?? () #3 0x000000000040285d in ?? () #4

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

Hi Folks, First, I would like to thank the eople in development who are doing so much to develope these great video and audio tools. I use Ogg Vorbis to store most of my music projects in studio and the results are stunning. Quite frankly, in the audio file reduction game, nothing beats Ogg Vorbis and I can personally say this from my own experience. So a huge thank you to the team. I've

Hi all, I just did a brief test with 3 different codec combinations: 1) ffmpeg sorenson/flv, mp3 audio in flv container 2) ffmpeg h264/vorbis audio/matroska 3) ogg/theora/vorbis using encoder_example Here are the results: 10721201 2010-10-16 14:46 origem1.flv 20731108 2010-09-13 23:04 origem1.mkv 33101703 2010-10-03 11:24 origem1.ogv as you can see, flv wins hands down, and it doesn't look

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all: I'm testing thusnelda and I'm trying to use the two-pass feature, but when I try it with /usr/bin/ffmpeg2thusnelda /home/raster/Escritorio/devede/holidays\ at\ galicia.mpg -o /home/raster/output.ogv -v 10 -a 10 --optimize - --first-pass /home/raster/output.ogv.firstpass_data I receive the error Could not set up the first

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all: I'm testing thusnelda and I'm trying to use the two-pass feature, but when I try it with /usr/bin/ffmpeg2thusnelda /home/raster/Escritorio/devede/holidays\ at\ galicia.mpg -o /home/raster/output.ogv -v 10 -a 10 --optimize - --first-pass /home/raster/output.ogv.firstpass_data I receive the error Could not set up the first

Hi Jan, all I am trying to generate a video introduction with a fade-in / fade-out effect. To do this with ffmpeg2theora only, I generated a list of PNG images: img001.png, img002.png... img299.png The ffmpeg2theora man page says: Encode a series of images: ffmpeg2theora frame%06d.png -o output.ogv That's exactly what I tried with the latest 0.24 release of ffmpeg2theora: