search for: ov_info

I seem to have run into a slight problem in my decode/cache routine. For some reason, my ov_info struct is saying that the channels in the bitstream are zero. Is this normal for certain files, and zero signifies something, or is something wrong? The ov_info struct DOES get filled (it isn't NULL), but channels gets set to zero. This of course can cause problems while calculating the buff...

...>OggVorbis thing. As a test to get me going, I've just written a quick routine that dumps info about the file test.ogg in the current directory. The problem arises when I call ov_clear. I get a segfault everytime. Note that I am *not* doing any decoding (ov_read) at all, just ov_comment and ov_info. Should I only call ov_clear if I have called ov_read? If I comment out the ov_clear, everything works fine. This is good, as it means I'm on the right track and I at least *partially* know what I'm doing. :) Here's the code [try and ignore all the Java required stuff]: #include <...

Hi Folks, i implemented the required callback funktions to open an ogg file from memory. Now ov_pcm_total() returns always 0, strange thing about is that ov_pcm_total does not call any of the callback funktions. I also like to mention that ov_info (which uses the read and seek callback funktions) delivers correct values. Thats why i doubt that there's an error in (the rather simple) callback funktions... Is it valid to call ov_pcm_total() on an ogg file that was opened with ov_open_callbacks()? If it is not: How can i calculate the size...

I get an access violation when calling ov_clear(). I know ov_open() worked because I used ov_info to get the sampling rate and number of channels in the .ogg file. I also know the FILE pointer and the OggVorbis_File structure are still in scope (they're member variables of the same class my deconstructor is in (where ov_clear() is called)). Anyone have any ideas? I opened the file using...

...f if (ov_open_callbacks (stdin, &vf, NULL, 0, OV_CALLBACKS_NOCLOSE) < 0) { fprintf (stderr, "Input does not appear to be an Ogg bitstream.\n"); exit (1); } { char** ptr = ov_comment (&vf, -1)->user_comments; vorbis_info* vi = ov_info (&vf, -1); while (*ptr) { fprintf (stderr, "%s\n", *ptr); ++ptr; } fprintf (stderr, "\nBitstream is %d channel, %ldHz\n", vi->channels, vi->rate); fprintf (stderr, "Encoded by: %s\n\n", ov_comm...

...f if (ov_open_callbacks (stdin, &vf, NULL, 0, OV_CALLBACKS_NOCLOSE) < 0) { fprintf (stderr, "Input does not appear to be an Ogg bitstream.\n"); exit (1); } { char** ptr = ov_comment (&vf, -1)->user_comments; vorbis_info* vi = ov_info (&vf, -1); while (*ptr) { fprintf (stderr, "%s\n", *ptr); ++ptr; } fprintf (stderr, "\nBitstream is %d channel, %ldHz\n", vi->channels, vi->rate); fprintf (stderr, "Encoded by: %s\n\n", ov_comm...

...e the best way to find out if a given logical stream is valid vorbis? ov_test and ov_open will fail if the first stream isn't vorbis (bit of a pain, that, as subsequant streams could be vorbis. Not way to work around it without abandoning libvorbisfile, I think). I've tried checking for ov_info returning NULL on the remaining streams but it returns a struct packed with nonsense anyway. Any better solutions? Thanks, John --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-...

Hi! I would like to decompress an ogg vorbis file from the memory to the memory. I wrote my own callbacks for it (Why isn't there callback functions for it? Just for void* data, and a size_t size). Now I can read the ogg file from the memory but I don't know the total size of the uncompressed data (I would like to decompress the data at once). How can I get the bitstream decompressed

...n I try to ov_clear the vorbis file, it segfaults. I can attach or otherwise make availible some demo source code, but for now I'll just pull out relevant lines: //BEGIN PSEUDO CODE OggVorbis_File vorbis; vorbis_info *info; if(ov_open(infile, &vorbis, NULL, 0) != 0) error(); if((info = ov_info(&vorbis, -1)) == NULL) error(); if((availible_chunks[tint]->len = ov_pcm_total(&vorbis, -1)) == OV_EINVAL) error(); while((tulong = ov_read(&vorbis, tuint8p, 4096, endian, 2, 1, &bitstream)) != 0) dothings_withdata(); //While not end. if(ov_clear(&vorbis) != 0) error(); //S...

...almOS 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 well as for this I need a ov_info_basic function so that no internal structure is returned (which seems to me a somewhat bad design because you'll get stuck with that: each time an internal modification will occur, outer code may have to be fixed or re-compiled). I propose to add that to vorbisfile.h: /* same as ov_clear but f...

...KS_NOCLOSE) < 0) >> { >> fprintf (stderr, "Input does not appear to be an Ogg bitstream.\n"); >> exit (1); >> } >> >> { >> char** ptr = ov_comment (&vf, -1)->user_comments; >> vorbis_info* vi = ov_info (&vf, -1); >> >> while (*ptr) >> { >> fprintf (stderr, "%s\n", *ptr); >> ++ptr; >> } >> >> fprintf (stderr, "\nBitstream is %d channel, %ldHz\n", vi->channels, vi->rate)...

...in, &vf, NULL, 0, OV_CALLBACKS_NOCLOSE) < 0) > { > fprintf (stderr, "Input does not appear to be an Ogg bitstream.\n"); > exit (1); > } > > { > char** ptr = ov_comment (&vf, -1)->user_comments; > vorbis_info* vi = ov_info (&vf, -1); > > while (*ptr) > { > fprintf (stderr, "%s\n", *ptr); > ++ptr; > } > > fprintf (stderr, "\nBitstream is %d channel, %ldHz\n", vi->channels, vi->rate); > fprintf (stderr, &...

Hi, I use the following code: if (ov_open(NULL, &vf, const_cast<char*>(reinterpret_cast<const char*>(get_data())), get_size()) < 0) error = 0x100; else { vorbis_info* vi = ov_info(&vf, -1); Cvirtual_file f; const int cb_samples = ov_pcm_total(&vf, -1); const bool seekable = ov_seekable(&vf); So all data is already in memory and passed to ov_open. This stream is not seekable. Why not? And shouldn't it be seekable? Olaf van der Spek Almere, Holland O...

...iph.org?) I just downloaded "SDK for MacOS9" and tried to compile the "vorbisfile_example.c" sample with CodeWarrior for Mac 8 on a Mac OS 9.2 machine. I included the libOgg and libVorbis libraries in my project, but the linker cannot file ov_clear(), ov_read(), ov_pcm_total(), ov_info(), ov_comment() and ov_open(). I looked at the Windows SDK and noticed that there are far more library files in that package, including a vorbisfile.lib. Is it possible that the MacOS9 SDK doesn't include a vorbisfile lib? Is this by design? Thanks, --jr <p>____________________________...

...y about 5k. The buffer was a little less than 10% too small. I "solved" that by padding the result with an extra 20 percent. However, I have been told that I should be able to rely on the value of ov_pcm_total. char* m_pDataVorbis; . . . OggVorbis_File vf; . . . vorbis_info* vi = ov_info(&vf,-1); . . . int pcmTotal = ov_pcm_total(&vf, -1); m_pDataVorbis = new char[pcmTotal * vi->channels * 2]; -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/vorbis-dev/attachments/20051101/33d6782e/attachment.html

...bis. File ignored '%s'\n", fileName); return 0; } if (!ov_seekable(&vf)) { fprintf(stderr, "File is not seekable. File ignored '%s'\n", fileName); ov_clear(&vf); return 1; } vorbisInfo = ov_info(&vf, 0); The failure is on the ov_open and is an "Access Violation". Any ideas what happened between 1.0 and 1.01 that might cause this. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a...

...if(pFile == NULL) return NULL; if((pData = (pSOUNDDATA)malloc(sizeof(sSOUNDDATA))) == NULL) return NULL; pData->Length = ov_pcm_total(&sOVFile, -1); if((pData->Buffer = (char*)malloc(pData->Length)) == NULL) { free(pData); return NULL; } pOVInfo = ov_info(&sOVFile, -1); pData->Frequency = pOVInfo->rate; if(pOVInfo->channels == 1) pData->Channels = 0x1101; else pData->Channels = 0x1103; numStreams = ov_streams(&sOVFile); StreamID = 0; Location = 0; while(StreamID < numStreams) { Size = ov_pcm_t...

I'm considering patching my copy of ogg123 to support vorbisgain tags. Is there any interest in folding this sort of patch into the main line ogg123? Has anyone done this already (or to another command line ogg player)? John --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to

...from the middle of a stream? callbacks.tell_func = sdl_tell_func; callbacks.close_func = sdl_close_func; if ( ov_open_callbacks( pStream, &vf, NULL, 0, callbacks)==0 ) { // Valid OGG data, so do some code here to read it in... // Get our OGG info info = ov_info( &vf, -1 ); } } After looking at the documentation I thought I could change the 4th parameter to be the offset into the stream for where my sub file (inside the pack file) is located. This did not work. It took about 10 seconds for the function to return so I am guessing it was seeking t...

...d b) human hearing can barely cope with 16-bit sound, but still I''m curious. Also, has any more work been done on the VorbisEnc documentation? I can easily dig through the oggenc source, but if there's more recent documentation... While I have your attention, I keep getting a 0L from ov_info() as the version. How should I read that? As "Codec Version 1" or "Codec Version 0"? -- Ignacio Vazquez-Abrams <ignacio@openservices.net> --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from th...