similar to: Implementing seeking in splayer

Speaking of portability and people more familiar with SDL: The reason we have two example players for theora is that monty wrote the original example around the OSS audio interface used on several free unix-like operating systems, which immediately excludes win32 and MacOS, even though it used SDL to display the frames. SDL also has audio support, and is quite widely ported. splayer replaces

Hi people, I'm writing a decoder that uses libtheora on Windows and Linux. Decoding works well by now. I have a couple of problems with it, that I just can't seem to figure out. I'll write each of them in a single mail, so it's easier to answer individual problems. The first problem I have is seeking, when it's playing files. I have implemented a weighted binary jump

First my environment MinGW and MYSYS with gcc 3.4.2 under Windows XP pro. I configured and built libbogg with out a problem. I configured libvorbis and it finds libogg. When I type make it dies with: gcc -shared .libs/mdct.o .libs/smallft.o .libs/block.o .libs/envelope.o .libs/window.o .libs/lsp.o .libs/lpc.o .libs/analysis.o .libs/synthesis.o .libs/psy.o .libs/info.o .libs/floor1.o

Hi, despite the warnings on the website ;-) I played with the current CVS source of theora on Windows 2000 w/ Microsoft Visual C++. The codec and the "experimental" example programs compiled fine. I also encoded a 33 MB MPEG2 (?) video (3 minute trailer) to a 14 MB .OGG using "mplayer -vo yuv4mpeg -ao pcm" and the "encoderwin" sample program, and play it with the

I have searched the net and I have found other people who are having problems compiling libvorbis, but I have not found a solution. My problem occurs when trying to create library libvorbisfile.dll.a I get multiple undefined references like undefined reference to `ogg_sync_pageseek' I was able to compile libogg without a problem. I am using msys with ./configure and make to build the

Dear all I'm aware that there have been several discussions about the seeking issue and I'm sorry to bring this up again. To solve the problem with Inter-Frame garbage, a seek to the previous keyframe has to be made. The keyframe number should be extracted from the granulepos of the frame where we want to seek to. I hope I understood the theory - unfortunately a few questions have

Folks have noticed that the documentation is semi-silent about how to properly encode the granule position and interleave synchronization of keyframe-based video. The primary reasons for this: a) we at Xiph hadn't had to do it yet b) there are several easy possibilities, and the longer we had to think about it before mandating One True Spec, the better that spec would likely be. The

Is anyone working on liboggplay, and if so, is there any plan to support keyframe-based seeking? I found this, but seems to me that the feature ought to be part of liboggplay: http://pearce.org.nz/2009/05/video-seeking-improvements.html Is there a more appropriate list to post to regarding liboggplay? Shayne Wissler -------------- next part -------------- An HTML attachment was scrubbed...

Dear members, since two weeks I am stuck, trying to demux a physical ogg stream (theora and vorbis) and play the audio part using vorbisfile. I hope that one of you can give me a hint or point me to additional documentation. I used ogg.h and vorbisfile.h. The way so far: - initializing an ogg_sync_state - inserting data to sync_state using ogg_sync_buffer - when whole page found

Hi all, Just a heads up to let you know that I've fixed up the Visual C++ project files so that libtheora and the associated experimental programs (dumpvid/encoderwin/splayer/transcoder) builds on Windows again. I also have good news and good news. The bad news is: experimental\splayer doesn't work. It compiles, but segfaults immediately when you try to play any Ogg file. The bug

On 2/7/08, ogg.k.ogg.k@googlemail.com <ogg.k.ogg.k@googlemail.com> wrote: > And this is the crux of the problem, as far as I understand how it works: > you'll have to do a first bisection to find the page that maps to that > granulepos, > then, and only then, you get to know the low bits of the actual granulepos, > and then you have to do another bisection to find it.

>Also, 'portaudio' doesn't appear to produce a static library at all, so it doesn't appear to be possible to get a working splayer executable on Linux unless there is a 'hidden' way to get the portaudio distribution to build one. ("ldd: -lportaudio not found"). I believe splayer is only intended to be a Win32 executable. Note that it is in a directory

Some more thinking about this whole granulepos splitting. Sorry for the badgering :) The CMML way was presented as a similar way as the Theora way, which I didn't see (I actually use such a system to allow multiple events to start at the same time, and this feels like the Theora way). Theora can find any frame's previous keyframe granulepos by clearing the low bits of the frame's

Here's the problem: I've rewritten large parts of the output code of cortado 0.1.0 with the following aims: 1. output to something SWT-like instead of AWT. 2. Speed it up a bit. In the rewrites I haven't restricted myself to java 1.1; the fact that it uses SWT all by itself makes it useless for applets anyway. The speedup worked very nicely; it's almost twice as fast as

----- Original Message ----- From: Nicol?s Vinacur To: illiminable Sent: Saturday, June 18, 2005 11:46 PM Subject: Re: [Theora] can't get to work windows player thanks. Unfortunately, I need to play it on both windows and Mac. So I need something that works a lower level, I was wondering then that I must work with the linux player directly. I am still having problems compiling on cygwin,

I've developed an indexer which embeds a keyframe index track in Ogg files. It embeds the index in its own track, so that players that don't understand or don't want to use the index can just ignore it. Ogg needs this to make seeking over networks faster and more efficient. Currently we must do a bisection search when seeking, which usually takes aound 6 HTTP requests, give or

Hi! I'm having some trouble with theora in windows, I would really appreciate if you could be able to give me a hand with this. First, I was not able to build theora in cygwin, because I built vorbis and ogg perfectly, but when I try to run ./configure with theora it can't find the ogg libs, if I use the --using-ogg-path = ... with /usr/local/lib it runs ok, but then it fails to compile

I am using the directshow Theora encoder to compress a live video stream. A dump of the encoder settings is given below. The starred settings have been explicitly configured and the others are defaulted or derived values. These settings produce an even, dark (almost black) recorded result as does any recording with Keyframe Freq <= 32. Keyframe Freq >32 works perfectly. The incoming

Hi people, Next issue at hand here is after I have done a seek in a theora file. At this point, I have to reinitialize the decoder so the viewing can continue. Again, I have code that works most of the time, but, well... Just after the last file position seek, this code is run: while ((result = ogg_sync_pageout(&sync, &page)) == 0) bufferData(); while

Here is a fix that prevents the encoder from spending too many bits on keyframes. The main problem is that the old code computes the target keyframe bitrate incorrectly. This causes the code that computes the Q for the frame to think that it has tons of bits to spend. It selects a high Q value for the keyframe. Since so many bits were spend on the keyframe the the inter-frames have to use a much