similar to: Suggestion for libvorbisfile: scaling

Is there any particular reason why ov_read() packs floats to integer PCM inline, rather than being implemented in terms of ov_read_float() and a separate packing fucntion? There are obviously many advantages doing audio manipulation on the floats before packing, but right now you have to reinvent the packing stage yourself - in a replaygain backend that I'm working on, I ended up copying

Greetings, I'm having some sort of problem using ov_read_float(). Everything looks good to me, but I'm trashing memory somehow, so clearly I'm screwing something up. What confuses me is why it takes a ***float for the buffer. I call it like so: float **buffer bytes_read = ov_read_float(&vf, &buffer, 0) memcpy (b, *buffer, 0); This compiles fine, but after a few reads,

Hi, While testing ReplayGain (so it could be related to a bug), I noticed the following gain comments for a file: RG_PEAK=1.71580 RG_RADIO=-7.91 dB RG_AUDIOPHILE=-6.72 dB I've never seen such a large peak. Not that I've looked much, nor have I analyzed the file further. I just thought I should mention it. :) The file is the track Board Burner by Mixmaster Mike, available at:

Hello. I noticed that when reading data with ov_read_float(), you can get values outside [-1..1] when the stream is encoded at lower quality, but with higher quality, the values trim down to inside [-1..1]. Looking at the plot from -q10, the data from ov_read_float seems clipped. I've made some plots of encoding the start of Rammsteins Feuer from the xXx soundtrack (it's a pretty loud

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

Hi, in ov_read_float.html there is a small mistake: long ov_read(OggVorbis_File *vf, float ***pcm_channels, int *bitstream); hould read: long ov_read_float(OggVorbis_File *vf, float ***pcm_channels, int samples, int *bitstream); It seems this function has been changed (compared to the RC3). Anything else worked fine for me with the 1.0 release. Olaf <p>--- >8 ---- List archives:

Hello, Am I missing something? float** pcm_channels; int bitstream; int where = ov_pcm_tell(&vf); -> The Result is "0"; ov_read_float(&vf, &pcm_channels, 1, &bitstream); -> pcm_channels[0][0] is "0.000338580" ov_pcm_seek(&vf, 0); char* buffer = new char[2]; ov_read(&vf, buffer, sizeof(buffer), 0, 2, 1, &bitstream); short temp =

Hi, I need to adjust the output volume from ogg123 the same way that mpg123 has the "-f n change scalefactor [32768]" option. I need to do this within ogg123, instead of alternatives that involve pipes, such as piping the output to sox. I do not believe that this is currently possible in ogg123, and I'm looking for some suggestions as to how it can be accomplished by modifying

Hi, I need to adjust the output volume from ogg123 the same way that mpg123 has the "-f n change scalefactor [32768]" option. I need to do this within ogg123, instead of alternatives that involve pipes, such as piping the output to sox. I do not believe that this is currently possible in ogg123, and I'm looking for some suggestions as to how it can be accomplished by modifying

Hi there, I've been grappling with this for some time, so I'm finally breaking down and trying this list. I'm trying to integrate libvorbisfile and libao to create a simple sound file player, a la ogg123. To do this, I borrowed heavily from ao_example.c and vorbisfile_example.c. I feed the buffer from ov_read into ao_play in a simple loop. It usually works, but occasionally all it

Hi Gunter, I think this problem started happening when I upgraded from Debian Wheezy to Debian Jessie. If nothing looks amiss in my code, it probably is a sound driver problem. But since it works 100% of the time in ogg123, I feel I must have missed some corner case. My audio driver is almost always active. I usually have my music player going in the background when I do my testing. The problem

Here's a patch to vorbisfile.c in libvorbis that splits the float to integer pcm packing out of ov_read into it's own function. The good stuff: - ov_pack_pcm can be used by folks who decode to float pcm with ov_read_float to do various sound manipulations (eg, preamp, fades, replaygain). No more need to roll your own, which will really begin to pay off when 24 bit output gets

First off, I don't even know if this is the right place to ask these kind of questions, but I haven't been able to find answers anywhere else, so 1. I have found that "pcmTotal * vorbisInfo->channels * 2" gives the uncompressed size of every ogg vorbis file I have used. What is a more robust way of getting the full uncompressed file size? 2. How do I read a certain amount of

This one may be my fault.... I've put a temporary fix for libvorbis not linking, I altered libvorbis_la_LIBADD = to libvorbis_la_LIBADD = $(OGG_LIBS) in the makefile, hence the temporary and continued with the build. I'm now getting gcc -DPACKAGE=\"libvorbis\" -DVERSION=\"1.0.0\" -DHAVE_ALLOCA_H=1 - DHAVE_ALLOCA=1 -I. -I. -I../include

Hi! I solved the problem using ov_read_float instead ov_read. Still do not know why ov_read returned garbage, but ov_read_float works fine! Thanks! El 17 de julio de 2011 10:41, Juan Miguel Mart?n Mu?oz <jmcubo at gmail.com>escribi?: > Hi, thanks for your replies! > > ogg.k, I'm sure MACOSX is defined. When I'm debugging line by line the > program runs into ov_read.

Hello, hope you're fine. And hopefully someone can help me. I wrote a short demonstration to show you my problem (see below). I'm asking always for 64 samples. When "ov_read_float()" is finished, I want to seek back to sample 1, and ask immediately for the next 64 samples. But when I run this small app, I get an totally high CPU load. Is there a way to it speed up? Or do I

Hi Gunter, I've solved the sound glitch. Since it was hard to reproduce, it took me a while, but I eventually figured it out. What I needed to do was fill the buffer with more data before handing it off to ao_play. It requires lots of bookkeeping, pointer arithmetic, and a sufficiently large buffer. First, the bigger buffer. I just pulled this code from ogg123: #define PRIMAGIC

I had completely forgotten about Replay Gain until Mr. Seibert reminded me. Wasn't there talk of adding this to vorbis-tools? Anyway, I went here: http://sjeng.sourceforge.net/ftp/vorbis/ And downloaded the source for the replay gain tool. Unfortunately, I cannot compile it. The errors regard parameters to ov_read_float. Is there updated source somewhere else? -- -:-:-

How can this problem be reproduced? If you have an specific .ogg file that gives problems it would be helpful to have them so we can try to reproduce them. Kind regards, Gunter. On So, Jun 14, 2015 at 7:10 , Marshall Mason <marshallmason2 at gmail.com> wrote: > Hi there, > I've been grappling with this for some time, so I'm finally breaking > down and trying this

Hello! 1. You should modify the 'vorbis_ftoi(f)' for the undefinied OS/compiler in the 'os.h' on this way: old: static int vorbis_ftoi(double f){ return (int)(f+.5); } new: #define vorbis_ftoi(f) ((int)(f+.5f)) Because in some cases we don't use this function, and the compiler writes many error messages. 2. Could you write a frequency and bitrate independent