similar to: ogg_packet -> ogg_page

dear list, i am trying to write a small program which reads an ogg file and writes it to another ogg file (and changes serial number, granulepos etc on the fly). reading the ogg file is ok (ogg_sync_pageout, ogg_stream_pagein, ogg_stream_packetout). but writing the file doesn't work - the granulepos and page structures don't match with the original file. here's what i am doing.

Hi, i just wonder if there's a cheap way of getting the number of oggVorbis pcm frames in an ogg_page, without actually decoding it? Can i use the granulepos of the page, substract the granulepos of the previous page? is this always guaranteed to work? thanks, Chris

2008/10/29 Romain Beauxis <toots at rastageeks.org>: > > I am currently implementing theora for our application. > In our model for generating ogg streams, we may want to stop > a stream while not providing a new YUV data buffer for encoding. > > Current API doesn't allow such thing, since the eos flag is set by the > packetout function only when the last_p parameter

I write this small piece of code, that get pixels and encode them: ogg_page page; ogg_packet packet; m_frameSource.getYUVBits(m_buffer.y, m_buffer.u, m_buffer.v); theora_encode_YUVin(&m_encoder, &m_buffer); while(theora_encode_packetout(&m_encoder, isLastFrame, &packet)) ogg_stream_packetin(&m_oggStream, &packet); while

Happy new millenium! Summary: I'm having a problem queueing up the ogg_packet results of vorbis_analyze() for later writing to an .ogg stream. The docs don't seem to say if this is permissable or not. Hence, I don't know if I'm using the API incorrectly, or if this is an actual bug. ----- Attached is a short patch to vorbis-tools/oggenc/encode.c (from CVS head, 01/01/01... I

1.) after initializing a ogg_stream_state may I just keep calling ogg_stream_packetin with valid ogg_packet's until no more ogg_packets needs to be added? Or do I need to call ogg_stream_pageout after every ogg_stream_packetin? Iaw may I delay calling ogg_stream_pageout until there are no more packets to be added? 2.) I assume I have call ogg_stream_pageout until no more pages can be

Hi all. I'm Mat & I'm new :) I'm testing libtheora + libogg perhaps for a commercial product. I started watching encoder_example.c ... I simplified it for testing it easier. It seems ok to me but I have no experience with theora so I would like to know if my code is correct. I tried to debug it with Valgrind and I found 4 possible memory leaks... but I think they can be

Hi everybody, me again. I'm trying to write my own VFW-like dll... It doesn't need to do much. 1.) compress a single frame and give it back to the host application 2.) host applications sends the frame 3.) client application receives frame 4.) client application tells the dll to decompress the data So if I try to do this, something is going wrong... Perhaps someone could have a look at my

Hi all. I post a small app I made that create 2 clips using a V4L device. I would like to get every tips you think it's useful... Some notes: - I make 2 clips because in our project we create series of clips and it's important to check that the all the resources ( memory, descriptors, etc. ) are freed correctly and to reuse all the resources that can be reused - the clips are not well

Hi, While building an ogg-vorbis stream encoder, I encountered some problems with silence in the audiostream. The bitrate drops to almost zero, and pages going out less then ones a minute what makes the stream to stop / buffer. In earlier postings I read that I shout use ogg_stream_flush as an alternative to ogg_stream_pageout, in case of silence. My question is this; Is there any

Hi While implementing OSS Ogg/Vorbis encoding and streaming using RTP/RTCP for both unicast and multicast, I have come across a few issues I need to clear out regarding the numbering of ogg_packets and their granulepos value. Below are the result for two different scenarios. <p>In the first scenario, ogg_packets are generated using a) vorbis_analysis_headerout() b) while

Hi. I'm trying to implement Ogg/Vorbis support for the MPEG4IP project. The goal is to support Ogg/Vorbis audio for MPEG-4 streaming. So far I have managed to make the encoder save Ogg packets as an Audio object in an .mp4 file. As a side effect, it can also save Ogg pages in an .ogg file playable by xmms, but that's no big deal. So what I'm doing is this. First the init part. a)

Jan, Here's a hacky patch to add a few commandline options for setting comment header fields in ffmpeg2theora. It's a bit big because I virtualized the global info struct in theorautils.c. In retrospect that probably wasn't necessary, but I think it's cleaner anyway. I didn't test it because I couldn't compile ffmpeg2theora, but modulo bugs it should support

Hi. I assume that I am deeply stupid and have missed something obvious, but why does this bare-bones code not generate a valid (If trivial) opus file? Running opusinfo I ge the following which I interpret this to mean that not even the first packet gets a pass: New logical stream (#1, serial: 1f0cce42): type opus WARNING: Could not decode Opus header packet 0 - invalid Opus stream (1) WARNING:

Okay, how do I drop a changeset/patchset/tag for you folks from SVN? At this point, I have written three examples of how to use the basics of the ogg streaming and decoding in Tremor. I heartily welcome any suggestions, improvements and corrections that you can point out in the code. The examples required me to make some small modifications to the main tremor library. However, the changes

Dear List, I'm just creating a little application for my openmoko freerunner, unfortunately in python, so that I have to use pyogg and pyvorbis(http://ekyo.nerim.net/software/pyogg/index.html) as wrappers around the C-functions and objects. I've got it all installed, after applying some patches and trying to run an example of encoding a wave-file I just get an empty ogg-file, the

In place of rpm I used pre compiled binary for installing the Cross Compiler and now I am not getting this error. But I am gettimg error after <make> command. The error is: speexenc.c:49:21: ogg/ogg.h: No such file or directory speexenc.c:68: error: parse error before '*' token speexenc.c: In function `oe_write_page': speexenc.c:71: error: `page' undeclared (first use in

Hi all, I try to compile speex for ARM. I follow the README.arm and i always have the same errors : make[2]: entrant dans le r?pertoire ? /usr/src/linphone/arm/speex-1.1.6/src ? source='speexenc.c' object='speexenc.o' libtool=no \ depfile='.deps/speexenc.Po' tmpdepfile='.deps/speexenc.TPo' \ depmode=gcc3 /bin/sh ../depcomp \

Dear all, I'm Arun, new in this group. and newbie in Linux also. I am working on linphone and I want to compile linphone, but before that I want to compile speex-1.1.10 for uClinux using bfin-gcc. I used these three files : uClinux-dist-2005R3.tar.bz2 bfin-gcc-3.4-2005R3.1.tar.gz speex-1.1.10.tar I sucessfully compiled and installed bfin-gcc, and

I was wondering. When doing ogg only encoding, how do you mark end of stream? I am setting ogg_packet.e_o_s and then submitting it via ogg_stream_packetin() and then, because its the last potential page ogg_stream_flush()ing it. But when I walk through the file, EOS is not set on that logical bitstream. I have been using oggenc.c/encoder.c and oggdec.c/decoder.c for examples, but because the