similar to: Theora in Matroska

Hi I was surprised with size of Theora files and thought of feedback. Following 1minute duration Theora and Xvid files were made from a y4m file. The resolution is 1280x720: 1. Xvid 17MB 2. Ogg/Theora Q7 31MB 3. Ogg/Theora Q8 38MB 4. Ogg/Theora Q9 49MB 5. Ogg/Theora Q10 61MB The Xvid file was made using mencoder by 2 passes with following options:

(Cross posted to theora-dev@xiph.org and ffmpeg-devel@mplayerhq.hu) I am working towards adding Theora encoding support to libavcodec in FFmpeg. I am doing this by simply calling libtheora from libavcodec. I am at the point where I can execute: "./ffmpeg -v 100 -i test.wmv -f avi -an -vcodec theora -b 1000000 -y test.avi" I get some whirring and an output file written. My calls to

Hi everyone, I face a problem trying to encode a mkv file into theora using directshow filters I have a mkv file containing only video encoded in YUY2. I use the DirectShowNet Lib V2.1 ( <http://sourceforge.net/projects/directshownet/files/> http://sourceforge.net/projects/directshownet/files/) I use the matroska splitter directshow filter v1.0.2.9 (

hi everyone ! since nobody answered the question in the extension-thread, i would like to ask again in a new thread: why does xiph and the theora-team not promote the matroska-format? do you just prefer ogg because its "home-made" or are there technical advantages over mkv? thanks! greetings hannes hauswedell

http://www.matroska.org/ I just found out about this and I think it looks like a great idea. I figured some on this list would be interested. Also, speaking now without having reviewed matroska in detail, nor being involved in Ogg/Vorbis: Perhaps it would be a viable alternative for the Ogg format for Theora if nothing else. I read about the .ogg format a while back, and while I have no

Hello, I'm looking into storing FLAC audio in Matroska and I have a few questions. 1. Can I use libflac to extract the compressed frames? Or will I need to write up a simple file parser? 2. What is required to decode the frames? From the docs I understand that you need the FRAME and you may need the METADATA_BLOCK. Thanks, Jory Stone jcsston@toughguy.net Matroska, the new,

First, Thank you for your answers. I using the following code to try simply decode a flac file and write the decoded data raw PCM file. The resulting file is just noise and pops, so is the decoded data in a different format than PCM? struct flacData { FILE *inputFile; FILE *outputFile; char *filename; }; FLAC__StreamDecoderReadStatus flac_DecoderReadCallback(const FLAC__StreamDecoder

Hi all I''m new to Qos and iproute2, but studied well the documentation. According to http://lartc.org/howto/lartc.qdisc.filters.html, catch all rule should be written as follows: tc filter add dev eth0 protocol ip parent 10: prio 2 \ flowid 10:2 But it doesn''t work because filtertype is missing. Can somebody please kindly explain how to write a catch all rule? Many

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

Please allow me to announce the creation of a new open source Media Container Format, named 'matroska' Project page is here http://sf.net/projects/matroska ; homepage is http://matroska.sourceforge.net , HTML should be online soon. Steve 'robux4' LHomme and myself have left the MCF project because of incompatibilities of our work with the project goals defined by the founder of

Please allow me to announce the creation of a new open source Media Container Format, named 'matroska' Project page is here http://sf.net/projects/matroska ; homepage is http://matroska.sourceforge.net , HTML should be online soon. Steve 'robux4' LHomme and myself have left the MCF project because of incompatibilities of our work with the project goals defined by the founder of

Is there a program currently available that will correctly mux a52/ac3 streams and theora streams into an ogg container? I've tried oggzmerge, and it will mux ac3 into ogm and correctly create a new ogm from an existing theora file, but it doesn't seem to put the two together correctly.

Hi Could I know on i386 RELENG_7, what Makefiles install following header files: 1) /usr/include/bsnmp/snmpmod.h 2) /usr/include/bsnmp/snmp_mibII.h 3) /usr/include/bsnmp/snmp_atm.h Appreciate your reply very much. Kind regards Unga

Hi all I'm trying to compile and install libvorbis 1.3.4 on Mac OS X (Mavericks). When try to run configure, it shows the following error: CC=clang ./configure? \ ? --prefix=/usr --with-ogg-libraries=/usr/lib \ ? --with-ogg-includes=/usr/include --enable-shared --disable-static checking for Ogg... no *** Could not run Ogg test program, checking why... The config.log shows:

Hi all I need a small help to get my first C program to compile on Widows 8.1. I'm an Unix guy but new to Windows. I installed MS Visual Studio 2013 free version and the LLVM 3.6.0 binary pre-built version. Here is my sample C program: #include <stdio.h> int main() {   printf("hello world\n");   return 0; } 1. >clang test1.c -o test1.exe test1.c:2:10: fatal error:

Hello, once again I have the great pleasure to announce the release of a new Theora version - please welcome libtheora beta 2! Changes for this version: libtheora 1.0beta2 (2007 October 12) - Fix a crash bug on char-is-unsigned architectures (PowerPC) - Fix a buffer sizing issue that caused rare encoder crashes - Fix a buffer alignment issue - Build fixes for MingW32, MSVC - Improved

Hello, once again I have the great pleasure to announce the release of a new Theora version - please welcome libtheora beta 2! Changes for this version: libtheora 1.0beta2 (2007 October 12) - Fix a crash bug on char-is-unsigned architectures (PowerPC) - Fix a buffer sizing issue that caused rare encoder crashes - Fix a buffer alignment issue - Build fixes for MingW32, MSVC - Improved

Hi, I have multiple ogg/theora files, with different bitrate. That is the big problem, because I want to broadcast them using ezstream/icecast and the connection between ezstream and icecast is always lost when switching between files. They have the same resolution but different quality. Is there a tool to concatenate/normalize several files to a big homogeneous one? -- A powerfull GroupWare,

Hi Vorbis has 3 "global" header packets, while generic containers generally have only a single global header per stream my proposal to solve this, would be to add a few lines to the vorbis specification to clarify how to convert between the 3 headers and the single header needed for non ogg containers currently (without any standarized way) various groups simply use their own

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, My company is evaluating open source codecs for a video solution we are starting to develop in one month, and I have some questions about Theora. How good is the performance of Theora? Is it possible to encode it real time? What about streaming Theora inside an OGG, OGM or Matroska container? Does it work any good? Which is the highest