Dima353/openal-soft
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Support B-Format amb file IRs in alconvolve

Browse Source 
Be aware this requires proper header data (a WAVE_FORMAT_EXTENSIBLE format with
the proper integer or float B-Format sub-format GUID). A normal 4-channel wave
file will not be recognized, since it's indistinguishable from quadrophonic.
This commit is contained in:
Chris Robinson
2020-09-22 08:43:13 -07:00
parent 844e6c881b
commit c993ade9bf
1 changed files with 12 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
examples/alconvolve.c
+12 -1
View File
@@ -325,11 +325,22 @@ static ALuint LoadSound(const char *filename)
/* Get the sound format, and figure out the OpenAL format. Use floats since
* impulse responses will usually have more than 16-bit precision.
*/
format = AL_NONE;
if(sfinfo.channels == 1)
format = AL_FORMAT_MONO_FLOAT32;
else if(sfinfo.channels == 2)
format = AL_FORMAT_STEREO_FLOAT32;
else
else if(sfinfo.channels == 3)
{
if(sf_command(sndfile, SFC_WAVEX_GET_AMBISONIC, NULL, 0) == SF_AMBISONIC_B_FORMAT)
format = AL_FORMAT_BFORMAT2D_FLOAT32;
}
else if(sfinfo.channels == 4)
{
if(sf_command(sndfile, SFC_WAVEX_GET_AMBISONIC, NULL, 0) == SF_AMBISONIC_B_FORMAT)
format = AL_FORMAT_BFORMAT3D_FLOAT32;
}
if(!format)
{
fprintf(stderr, "Unsupported channel count: %d\n", sfinfo.channels);
sf_close(sndfile);