similar to: YUV4MPEG2 file and rawvideo file

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 all, please can i know that, is it possible to make the theora with enabling the debugging (use "gdb" to debug) . if it is possible please let me know. i have experience with Mplayer debugging. in Mplayer we can enable debugging when it start configure (./configure ) thanks -- ----------- Regards, Janaka Priyadarshana -------------- next part -------------- An HTML attachment was

hi all, i am trying to debug the encoder_example with gdb. after the line number 669, it will go to a place "ogg_stream_init (os=0xbff0ec84, serialno=1418647043) at framing.c:189" but i couldn't find the file "framing.c" with in the "ibtheora-1.0alpha7" directory. please anyone can tell me where is this file -- ----------- Regards, Janaka Priyadarshana

i want to connect with the #theora channel with xchat. but still i was unable to configure my xchat client for this. this is the way i did it. xchat -> NetworkList then select the FreeNode from the network list. the following is my information. nick name: rpjanaka 2nd choice : rpjanaka1 3rd choice : rpjanaka12 username : rpjanaka then connect. but still i can not connect with this. this

if i want to play a .ogg file, should i have the theora codec installed in my machine...? is theora the only compatible codec with ogg container format..? i am using Ubuntu 7.04, with the default player (Totem Movie Player 2.18.1), it is not necessary to install theora externally. why is this, with the totem player they included theora codec....? or .ogg can be play with another codec...? --

hi all I guess that *Theora* will convert the input color space (RGB or CMYK or any) into YUV before it process and encode. (that means theora can operate on several color space, but it get convert into YUV before process) Is that true...? I want to get a gray scale, encoded video output from the *Theora* encoder while the input video is getting from a web cam (color input and gray scale

hi, i am a university student and completely new for the video codec technology. we have decided to develop a video codec that is specially focus for narrow bandwidth video streaming (provide video streaming experience for GPRS, etc). so i want to have some idea about how a video codec is related with streaming application...? have there any codec developed for these type of requirement, by

hi all, please can anyone tell me that what are the possible parameters in theora codec, that can be changed dynamically in execution time like DCT coefficient matrix frame rate....etc. ( still i do not know whether those are dynamically changeable) -- ----------- Regards, Janaka Priyadarshana

I have tried to add a plunging to the "libtheora-1.0beta2" (network bandwidth measuring component was added) and Got it success for some far now the problem is when it is added the encoding process get extremely slow (around 20 seconds delay). I think that the problem is with my modified Makefile (some flag may have missed). the following is my modified Makefile.am which is in the

I am using theora_encode along with ffmpeg: ffmpeg -an -s 1920x1080 -r 24 -i bigbuckbunny.mp4 -vcodec rawvideo \ -pix_fmt yuv420p -f rawvideo - 2>/dev/null \ | ffmpeg -an -f rawvideo -s 1920x1080 -r 24 -i - -f yuv4mpegpipe - 2>/dev/null \ |* theora_encode /dev/stdin 2>/dev/null *| ffmpeg -y -f ogg -i - \ -f mp4 -i bigbuckbunny.mp4 -map 0:0 -map 1:1 -vcodec copy \ -acodec libvorbis -ab

When I converted two files with ffmpeg2theora their duration changed shorter - they seem to play back with accelerated speed. When I play one of them with VLC, the video stops at 99 seconds but audio continues until 170 seconds. The other file is 120 seconds long but it is played back in 80 seconds. Here is ffmpeg2theora output: $ ffmpeg2theora --optimize --inputfps 25 -F 25 2002-05-23\ Juho\

I have tried to add a plunging to the "libtheora-1.0beta2" (network bandwidth measuring component was added) and Got it success for some far now the problem is when it is added the encoding process get extremely slow (around 20 seconds delay). I think that the problem is with my modified Makefile (some flag may have missed). the following is my modified Makefile.am which is in the

Hi all, I tried to compile the theora source with VS2005. But it asked for the ogg library. error message is as follow. **************************************************************************** Error 1 fatal error C1083: Cannot open include file: 'ogg/ogg.h': No such file or directory c:\Documents and Settings\Manoj\Desktop\libtheora-1.0beta3\include\theora\codec.h 64 Error

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

I wish to transcode an AVI from 29fps to 15fps theora. I have tried many combinations. The nearest I have so far is to: 1) ffmpeg -i input.avi -f avi -vcodec rawvideo -acodec pcm_s16le -r 15 -ar 22050 -ac 1 intermediate.avi then 2) ./ffmpeg2theora-0.15.linux.bin -f avi -c1 -H 22050 -o out.ogg intermediate.avi This gives me an output I want, however, the intermediate uncompressed stage

hi all, I am using Ubuntu 7.04 version. please can anyone tell me what are the files that copy in to a computer when it install. the following are the some of observations i got. After installing the theora it will copy the required files to the following places (default) according to the configure script. libtheora: ................... /usr/local/lib C header files: ..............

On 8/17/08, Silvia Pfeiffer <silviapfeiffer1 at gmail.com> wrote: > OK, then yuv4mpeg will have the magic number: char[8]: 'YUV4MPEG'. Which was previously for those not paying attention char[9]: 'YUV4MPEG2'. > Also, can you put the link to the spec into > http://wiki.xiph.org/index.php/MIMETypesCodecs ? AFAIK, that is just a matter of putting a [[OggUVS]] in

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

I've been encoding with ffmpeg.exe. Due to the muxing issue, I tried ffmpeg2theora, but I ran into some issues 1. it fails on 1080p content. 1920x1080. 1920x800 is okay. 2. I have raw yuv. in ffmpeg I use -s 1920x1080 to specify the source size. ffmpeg2theora doesnt seem to have a way to accept width/height for the raw yuv (420). So I need to do an additional step of muxing it into a

I'm unable to convert these gifs using the latest version of ffmpeg2theora 0.25 and the svn preview. http://upload.wikimedia.org/wikipedia/commons/9/96/Diamond_animation.gif http://i39.tinypic.com/260ybup.jpg Under 0.25, neither GIFswork. The framerate is 25fps instead of 5. Duration: 00:00:00.04, start: 0.000000, bitrate: N/A Stream #0.0: Video: gif, pal8, 264x192, 25 tbr, 25 tbn, 25 tbc