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examples: Use SDL_GetAudioStreamQueued, not SDL_GetAudioStreamAvailable.

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The "available" side is at the mercy of whatever format the hardware wants,
but we control what we queued.

Fixes #12403.
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Ryan C. Gordon 2025-02-27 11:44:22 -05:00
parent b3336c5a73
commit f7cadcba84
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GPG key ID: FA148B892AB48044
3 changed files with 3 additions and 3 deletions
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2
examples/audio/01-simple-playback/simple-playback.c
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@ -69,7 +69,7 @@ SDL_AppResult SDL_AppIterate(void *appstate)
A sine wave is unchanging audio--easy to stream--but for video games, you'll want A sine wave is unchanging audio--easy to stream--but for video games, you'll want
to generate significantly _less_ audio ahead of time! */ to generate significantly _less_ audio ahead of time! */
const int minimum_audio = (8000 * sizeof (float)) / 2; /* 8000 float samples per second. Half of that. */ const int minimum_audio = (8000 * sizeof (float)) / 2; /* 8000 float samples per second. Half of that. */
if (SDL_GetAudioStreamAvailable(stream) < minimum_audio) { if (SDL_GetAudioStreamQueued(stream) < minimum_audio) {
static float samples[512]; /* this will feed 512 samples each frame until we get to our maximum. */ static float samples[512]; /* this will feed 512 samples each frame until we get to our maximum. */
int i; int i;

2
examples/audio/03-load-wav/load-wav.c
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@ -82,7 +82,7 @@ SDL_AppResult SDL_AppIterate(void *appstate)
We're being lazy here, but if there's less than the entire wav file left to play, We're being lazy here, but if there's less than the entire wav file left to play,
just shove a whole copy of it into the queue, so we always have _tons_ of just shove a whole copy of it into the queue, so we always have _tons_ of
data queued for playback. */ data queued for playback. */
if (SDL_GetAudioStreamAvailable(stream) < (int)wav_data_len) { if (SDL_GetAudioStreamQueued(stream) < (int)wav_data_len) {
/* feed more data to the stream. It will queue at the end, and trickle out as the hardware needs more data. */ /* feed more data to the stream. It will queue at the end, and trickle out as the hardware needs more data. */
SDL_PutAudioStreamData(stream, wav_data, wav_data_len); SDL_PutAudioStreamData(stream, wav_data, wav_data_len);
} }

2
examples/audio/04-multiple-streams/multiple-streams.c
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@ -104,7 +104,7 @@ SDL_AppResult SDL_AppIterate(void *appstate)
/* If less than a full copy of the audio is queued for playback, put another copy in there. /* If less than a full copy of the audio is queued for playback, put another copy in there.
This is overkill, but easy when lots of RAM is cheap. One could be more careful and This is overkill, but easy when lots of RAM is cheap. One could be more careful and
queue less at a time, as long as the stream doesn't run dry. */ queue less at a time, as long as the stream doesn't run dry. */
if (SDL_GetAudioStreamAvailable(sounds[i].stream) < ((int) sounds[i].wav_data_len)) { if (SDL_GetAudioStreamQueued(sounds[i].stream) < ((int) sounds[i].wav_data_len)) {
SDL_PutAudioStreamData(sounds[i].stream, sounds[i].wav_data, (int) sounds[i].wav_data_len); SDL_PutAudioStreamData(sounds[i].stream, sounds[i].wav_data, (int) sounds[i].wav_data_len);
} }
} }