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disk audio: Make default i/o delay match what device is meant to be running at.

This commit is contained in:
Ryan C. Gordon 2016-08-06 03:45:45 -04:00
parent 978df1ad74
commit 4499e5bcc6
1 changed files with 5 additions and 2 deletions
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7
src/audio/disk/SDL_diskaudio.c
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@ -41,7 +41,6 @@
#define DISKENVR_INFILE "SDL_DISKAUDIOFILEIN" #define DISKENVR_INFILE "SDL_DISKAUDIOFILEIN"
#define DISKDEFAULT_INFILE "sdlaudio-in.raw" #define DISKDEFAULT_INFILE "sdlaudio-in.raw"
#define DISKENVR_IODELAY "SDL_DISKAUDIODELAY" #define DISKENVR_IODELAY "SDL_DISKAUDIODELAY"
#define DISKDEFAULT_IODELAY 150
/* This function waits until it is possible to write a full sound buffer */ /* This function waits until it is possible to write a full sound buffer */
static void static void
@ -140,7 +139,11 @@ DISKAUD_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
} }
SDL_zerop(this->hidden); SDL_zerop(this->hidden);
this->hidden->io_delay = (envr) ? SDL_atoi(envr) : DISKDEFAULT_IODELAY; if (envr != NULL) {
this->hidden->io_delay = SDL_atoi(envr);
} else {
this->hidden->io_delay = ((this->spec.samples * 1000) / this->spec.freq);
}
/* Open the audio device */ /* Open the audio device */
this->hidden->io = SDL_RWFromFile(fname, iscapture ? "rb" : "wb"); this->hidden->io = SDL_RWFromFile(fname, iscapture ? "rb" : "wb");