similar to: Page breaks when encoding ogg/theora

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

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

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, in my quest to grok ogg i tried to write a small program which extracts ogg_packets, and stuffs them back into ogg pages (which are then written to a file). extracting the packets works fine, but i have problems stuffing them into a new ogg stream. pseudo code: ogg_stream_init(os, serialno) foreach p in packets: ogg_stream_packetin(os, p) // try to extract a page

--- Erik de Castro Lopo <erikd-flac@mega-nerd.com> wrote: > Erik de Castro Lopo wrote: > > > Josh et al, > > > > I've been tracking down a problem with generating OggFlac files. > > <snip> > > > I have looked into this and suspect that the > FLAC__stream_encoder_finish() > > function needs to finish off the stream using a call to

Josh et al, I've been tracking down a problem with generating OggFlac files. While investigatint this issue I hacked one of the test files from the test_libFLAC directory of the flac-1.1.3-beta2. The result of this hacking is this standalone C file: http://www.mega-nerd.com/tmp/erikd_test.c Directions for compiling this is in the comments at the top of the file. When the program is

Josh Coalson wrote: > thanks Erik, can you confirm that this is happening only because > the total_samples_estimate is 0? (so the e_o_s setting in the > existing code is never triggered). In the Ogg code, I believe that there are two things that must be satisfied to correctly write an end of stream: - packet.e_o_s must be true - Need to call ogg_stream_flush() instead of

On Tue, Nov 07, 2006 at 06:31:04AM +1100, Erik de Castro Lopo wrote: > I haven't tested it, but I don't think just setting packet.e_o_s > is sufficient to close the stream. The forced ogg_stream_flush() > is required. libogg checks the e_o_s flag (and has always done so, according to svn) so you shouldn't have to call ogg_stream_flush() except when you want to force a page

Hi! I've made a vorbis encoder in delphi, but it's very verey slow! It takes 5 minutes to encode a pcm file. And i don't know why. Could anyone help me??? ---------------------------------------------------------------------------------- result := ogg_stream_flush(os, og); while result <> 0 do begin OutFile.Write(Pointer(og.header)^, og.header_len);

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.

Hey there I had implemented Speex encoding nicely in an application I was working on when I realized that I needed to change the API. I changed it, and the change somehow broke the speex encoding section of the code. The program writes SPX headers that other programs can read, but does not generate the rest of the file correctly. I have been through the guide "programming with

Erik de Castro Lopo wrote: > Josh et al, > > I've been tracking down a problem with generating OggFlac files. <snip> > I have looked into this and suspect that the FLAC__stream_encoder_finish() > function needs to finish off the stream using a call to ogg_stream_flush() > instead of the standard function ogg_stream_pageout(). I bashed on this a bit further and came

On Thursday 05 February 2004 12:55, Jørgen Elgaard Larsen wrote: > Hello > > Does anyone have experience with _real_ real time streaming - i.e. with > very little delay/latency? > > I need to stream from point A to point B in near-CD quality via a 100 > Mbit network. That is easily done using icecast. But here is the tricky > bit: > > I want as little delay in the

I apologize for bugging you all again, but I've been trying to wrap my head around the encoding process and I'm about to have an aneurysm :P I've gone through oggenc.c, encode.c, and audio.c and I think I have a basic idea of what happens. I got it down in pseudocode as follows: --- 1 get parameters 2 init vorbis_comment -- vorbis_comment_init() 3 init vorbis_info --

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 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 together, I have compiled so far a lot libs and already some programs on my Solaris 5.7 box (old, I know). When I try to compile libtheora the examples are not compiling: make[2]: Entering directory `/export/home/quix0r/more/libtheora-1.0/examples' if gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include -I/usr/local/include -I/usr/local/include/libpng12 -Wall -Wno-parentheses -O3

1. "dump_video.c" got reverted back by 5 years into 2004: https://trac.xiph.org/browser/trunk/theora/examples/dump_video.c https://trac.xiph.org/log/trunk/theora/examples/dump_video.c 2. "png2theora.c" (subminor) https://trac.xiph.org/browser/trunk/theora/examples/png2theora.c 207 /* Must hold: yuv_w >= w */ 208 yuv_w = (w + 15) & ~15; 209 210 /* Must hold:

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

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)