similar to: ov_pcm_seek to sample zero of Theora/Vorbis file hangs

Hi, I have been having some problems with ov_pcm_seek in vorbis_file:- Any seeks to a sample within the first second of the stream (i.e. < 44100 samples) fail. Seeks to samples beyond this 44100 limit are fine. It appears to be associated with vorbis_file trying to read the preceding page (odd for the beginning of the file), attempting an ov_raw_seek, then bombing out with an OV_EINVAL.

How do I seek back to the beginning of a stream using ov_pcm_seek()? ov_pcm_seek(0) doesn't seem to do anything, though ov_pcm_tell() returns 0 right after opening the stream. I'm now using ov_pcm_seek(1) which seems to work, but I'm not sure if that's really right. Are PCM offsets meant to be 0 or 1 based? Is this a bug? Frank -- Frank Heckenbach, frank@g-n-u.de

I realise the it's hard to do a seek in a variable bitrate file but I didn't think it was this bad. It seems to vary a lot with the file but the total time to do an ov_open() and ov_pcm_seek() can add upp to a second or more. By this time my DirectX buffers have wrapped around and are looping. Can anybody think of a solution for this? I really need a faster response time for my in-game

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

I found a problem with ov_raw_seek function in oggvorbis win32sdk 1.0. When i called this function it returned OV_EINVAL immediatelly. I solved the issue by replacing the ov_raw_seek by ov_pcm_seek, which worked perfectly, but i would like to use the raw variant due to performace reason . Is anybody aware of this strange behaviour ? Martin Cesky <p><p>--- >8 ---- List

Turned out to be a bug in my implementation of the file callbacks (not setting up vi->end properly). Apologies :) -----Original Message----- From: owner-vorbis-dev@xiph.org [mailto:owner-vorbis-dev@xiph.org] On Behalf Of Michael Smith Sent: 11 May 2004 01:04 To: vorbis-dev@xiph.org Subject: Re: [vorbis-dev] re: Seek problems with vorbis_file On Tuesday 11 May 2004 01:43, Paul Knight wrote:

Hello, All. I am making an Ogg Vorbis decoder based on Tremor. The Vorbisfile library provides a high-level API which enables us to seek in the file, but it needs to declare a pointer to OggVorbis_File structure. Because I am supposed not to use file, so I can't use the ov_pcm_seek() or ov_raw_seek() functions to seek in the file. For decoding an Ogg Vorbis file, I first put it in

At some stage (possibly commit r17268) oggpack_writecopy started to fail with some strings longer than 256 bytes and all strings longer than 512 bytes. Also it thrashes the stack with very long strings. Lithopsian

I haven't managed yet to get any stacktrace, but I'll work on it (that's the problem using C/C++ code in an Android app...). Also, it's important to notice that I manage to make ov_read() crash, *even when the audio file is fully downloaded!* What I do to reproduce the bug is to call ov_pcm_seek() (without any reload of the file) many times in a row, very quickly (like 6-7 times

ok, I'm aware that vo_open cant be used at the same time as other functions such as ogg_sync_wrote, ogg_sync_pageout, ogg_stream_pagein, ogg_stream_packetout and vorbis_synthesis_headerin. In order to get information from the bitstream i've been using this method because it's fast and doesn't require decoding of the stream. But, i can only retrieve the average bitrate of

I'm seeing some inconsistency in returned timestamps using vorbisfile. I open a file, read some data (grabbing timestamps with ov_pcm_tell), then seek back with ov_pcm_seek(vf, 0) and read it again. The seek lands back on 0, but on the second read through, there's a gap in the timestamps: they jumps up by 2112 frames. This causes my vorbisfile code to insert silence to maintain sync (as

>b) According to http://wiki.xiph.org/OggOpus#Comment_Header >there should be no REPLAYGAIN_*** tags in Opus files; Opus uses >R128_TRACK_GAIN tag. If some audio player reads Opus tags then it should >be aware of the difference between ReplayGain and R128. But this doesn't >require REPLAYGAIN_REFERENCE_LOUDNESS tag. > > The Opus replaygain spec is fundamentally broken, so

hi, I downloaded the vorbis-sdk-1.0rc3 and wrote an application that plays ogg files using DirectSound(win32 application). It uses streaming technique - I'm implementing and passing IStream interface to the DirectX. The interface is used by DirectX to fill his buffers during playing. DirectX is assuming that it's readind from a wav file, so the interface decodes on-the-fly so that

Thanks for your answer. But as I said, I don't have any problem seeking in a local file. Also, I have full control on the ogg file I play, since I encode it by myself. I first would like to know if the code I provided ( https://gist.github.com/mregnauld/3f7cdc43b02ec3bbd91641b9333ba072) is good practice when it comes to extracting and seeking in a file that is being downloaded. Thanks.

Not too long ago, I converted my whole cd library to OGG format, because I loved the way it sounded, and the fact that is was open source. Recently, I wanted to update my library with the latest CVS code. I just did a compile of the CVS ogg binaries (ogg.dll, vorbis.dll, vorbis_enc.dll, vorbis_file.dll), and I noticed they were alot larger in size than the default ones that came with CDex. I

On Wed, 18 Jun 2014 16:39:12 -0700 "Timothy B. Terriberry" <tterribe at xiph.org> wrote: >Ian Nartowicz wrote: >> The Opus replaygain spec is fundamentally broken, so let's ignore that for >> now. It is discussed ad nauseam elsewhere, but isn't going to change any >> time soon. > >I haven't seen anyone make any concrete proposals for how it

I have been having problems compling vorbis on my computer( running redhat 7.1 ), it gives me a bunch of errors about vorbisfile.o( at least that what the errors are complaining about...I don't know enough to figure out what is wrong ). Below is the output I get from compile: Making all in examples make[1]: Entering directory `/home/mchavez/devel/vorbis/examples' /bin/sh ../libtool

I have been having problems compling vorbis on my computer( running redhat 7.1 ), it gives me a bunch of errors about vorbisfile.o( at least that what the errors are complaining about...I don't know enough to figure out what is wrong ). Below is the output I get from compile: Making all in examples make[1]: Entering directory `/home/mchavez/devel/vorbis/examples' /bin/sh ../libtool

I've developed a function for updating Flac metadata blocks inside Ogg files. Obviously it is desirable to use padding so that most edits don't require rewriting massive files. Although the flac encoder creates a padding metadata block by default in Ogg Flac files, this appears to be useless. When packets on an Ogg page change size, the page size may change by as different amount, hence

Hi, In the last days I've been taking as reference the example found in examples/c/encode/file/main.c. With it I've been able to encode a 2ch, 16 bps, 44100 sample rate input WAV file to a FLAC file. Now I've been trying to modify this example to encode a 2ch, 24 bps, 96000 sample rate WAV file. I have to say I'm a bit lost on how I should read the input file in this case, and