=================================================================
*/
-#define STREAM_BUFFER_DURATION 1.5f // 1.5 sec
-#define STREAM_BUFFER_SIZE(format_ptr) ((int)(ceil (STREAM_BUFFER_DURATION * ((format_ptr)->speed * (format_ptr)->width * (format_ptr)->channels))))
-// We work with 1 sec sequences, so this buffer must be able to contain
-// 1 sec of sound of the highest quality (48 KHz, 16 bit samples, stereo)
-static unsigned char resampling_buffer [48000 * 2 * 2];
-
-
// Per-sfx data structure
typedef struct
{
per_ch->sb_offset = real_start;
- // We add exactly 1 sec of sound to the buffer:
- // 1- to ensure we won't lose any sample during the resampling process
- // 2- to force one call to ModPlug_FetchSound per second to regulate the workload
- if (sb->format.speed + sb->nbframes > sb->maxframes)
+ // We add more than one frame of sound to the buffer:
+ // 1- to ensure we won't lose many samples during the resampling process
+ // 2- to reduce calls to ModPlug_FetchSound to regulate workload
+ newlength = (int)(per_sfx->format.speed*STREAM_BUFFER_FILL);
+ if (newlength + sb->nbframes > sb->maxframes)
{
Con_Printf ("ModPlug_FetchSound: stream buffer overflow (%u sample frames / %u)\n",
sb->format.speed + sb->nbframes, sb->maxframes);
return NULL;
}
- newlength = per_sfx->format.speed * factor; // -> 1 sec of sound before resampling
+ newlength *= factor; // convert from sample frames to bytes
if(newlength > (int)sizeof(resampling_buffer))
newlength = sizeof(resampling_buffer);