similar to: ov_open_callbacks

Hello, All. First, I want to thank Ian Malone and Ralph Giles, thanks for your kind replies. But I still have problems about seek. As you suggested, I could use ov_open_callbacks() to supply my own read/write/seek functions. So, can you give me an example? I?m sorry for my ignorance, because I haven?t used callbacks before. I analyzed the vorbisfile.c in Tremor, and I think I

Hello, I've been looking to the libvorbisfile and got into troubles when trying to use it: I need to compile it on a PalmOS and the libvorbisfile must be compiled in ARM whereas calling code is in 68K. This implies that the interface ov_open_callback is not usable because the OggVorbis_File *vf must point to something in the target architecture (ARM) whereas the caller cannot do that. As

Greetings one and all; I'm not subscribed to this list so I'm first sending this message to verify that mails from me make it through, and then later I'll send the juicy messages with patches. Also, the address I'm using is IPv6-only and doesn't often work, so drop me from any replies and I'll catch the archives, or drop only the hostname part to get an IPv4 address that

Hello list, I've been having a tough time adding windows resource support to my ogg vorbise decoder, although I think I am close. Basically when I call ov_open_callbacks(), it doesn't ever return and repeatedly calls my seek_func. I'm hoping it is something obvious, but I can't see why my seek_func is being called endlessly. If the file is seekable, I should return 0, right? If

Hi guys, I'm writing a sample playback engine using vorbisfile, but I've hit a performance problem - hoping someone here can help! I'm using ov_open_callbacks() to decode memory-based ogg files. It works OK, but when I call ov_open_callbacks() approximately 300k of memory is used (presumably to initialise the decoder). It also takes some time to execute ov_open_callbacks() - the read

[I'm not online regularly, so don't include me in any replies. Looks like the archives are working at present, so I'll catch up from them when I get a chance. Thanks...] (Trying out vorbis-dev@ instead of vorbis@ where I sent my previous messages; if this is the wrong place, correct me) Greetings. Some weeks ago, I submitted several hacks which gave me the ability to play Ogg

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

The changes to vorbisfile that I suggested earlier have now been committed - this is mostly a merge of my code with a similar patch from Martin Vogt (thanks Martin). The old ov_open() interface remains untouched - and for many people, this is all you'll need to use, ever. It now calls the new interface with appropriate arguments. The new ov_open_callbacks() function adds an extra argument to

Why ov_open_callbacks(fd_, &vf, NULL, 0, OV_CALLBACKS_NOCLOSE) takes so long to open OGG file? The OGG file has just 210 MB. It takes a lot of time open the file. I am working on OGG audio recorder and player. Thanks in advance! With kind regards, Pavel

Hi all, I'm very new to Ogg, and am learning about it in an attempt to stream it from a CF card through a microcontroller. This particular setup requires me to move parts of the file from the CF card to the microcontroller buffer, effectively making the file like a data stream. Also, should this question be directed at the Tremor group instead since that is the codec I'm using? It

On 2014-02-02, at 12:00 PM, vorbis-request at xiph.org wrote: > Send Vorbis mailing list submissions to > vorbis at xiph.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.xiph.org/mailman/listinfo/vorbis > or, via email, send a message with subject or body 'help' to > vorbis-request at xiph.org > > You can reach the person

I have a number of assets packed into a single file. Some of these are OGG files. I have code to seek to the start of an embedded file, but cannot find any OGG functions that let me start at an arbitary point in a stream. The original code (which works) that opens a stream, then reads in the OGG data starts like this: // Read from an already open stream. // Assumes stream is positioned to

Hi,guys Hope you are doing well! I am an ogg format starter, and I am implementing ogg audio streaming. I meet some problems for streaming. My application is as follows: I send download request to server,and server sends the download ogg file to client side. when a certain amount of data is downloaded, and I start to play the ogg file by using a library. I use juce c++ library which uses

Help is needed ! I cannot extract infos from video stream in an .ogm file using the VorbisFile library. It seems that I can only open .ogg files (audio)! When I call "ov_open_callbacks" it generates a message error. Here is my procedure in pascal: code: _____ procedure GetOGMInfo; var F : TFileStream; vf: OggVorbis_File; res: integer; begin F :=

Hi! I'd like to make a stereo 8-bit wav file from a stereo (16 bit) ogg vorbis file (in delphi, with the vorbisfile). I use: ret := ov_open_callbacks(filein,vf,nil,0,ops_callbacks); if ret = 0 Then begin fileOut := TFileStream.Create(savedlg.FileName,fmCreate); repeat ret := ov_read(VF, pcmout, BufferSize, 0, 1, 1, nil); //'cause of the 8-bit

I'm in the final throes of debugging (hopefully) and the last thing I'm trying to do is figure out why I'm getting static instead of usable data. I have a verified Ogg file (it plays fine in WMA); I've visibly inspected the info struct and it matches my output format; I've verified my audio playback code by using a generated sine wave (sounds correct). So that leads to a

Hi,guys Hope you are doing well! I am an ogg format starter, and I am implementing ogg audio streaming. I meet some problems for streaming. My application is as follows: I send download request to server,and server sends the download ogg file to client side. when a certain amount of data is downloaded, and I start to play the ogg file by using a library. I use juce c++ library which uses

More newbie questions, please bear with me =) I've got my high level code pretty well structured, and I'm now trying to decode vorbis streams on the fly using the ov_open_callbacks() routines. I can't seem to figure out how to tell it what output format I want -- is this possible? For example, I would like to be able to specify number of channels output (e.g. stereo vs. sum-to-mono

I've been trying to get oggdec to work with input streamed in through a pipe or a socket. This seems to work on Linux and OS X, but not on Windows. I've found that code in vorbisfile.c tests the input stream for seekability by invoking fseek in the following way: int offsettest=(f?callbacks.seek_func(f,0,SEEK_CUR) : -1); Unfortunately, fseek succeeds for a socket on Windows (even

> Neither. initial could be const, but isn't. libvorbis doesn't make much > (any?) use of the const keyword, though there are plenty of places it would > probably be good to use. Because the source files are C and not C++, parameter types aren't checked, so is the use of const really a good idea? For example, this compiles fine (on VC++ 6), but itsn't right: int