struct audio_driver *drv)
{
int max_voices = glue (drv->max_voices_, TYPE);
- int voice_size = glue (drv->voice_size_, TYPE);
+ size_t voice_size = glue(drv->voice_size_, TYPE);
if (glue (s->nb_hw_voices_, TYPE) > max_voices) {
if (!max_voices) {
}
if (audio_bug(__func__, voice_size && !max_voices)) {
- dolog ("drv=`%s' voice_size=%d max_voices=0\n",
- drv->name, voice_size);
+ dolog("drv=`%s' voice_size=%zu max_voices=0\n",
+ drv->name, voice_size);
}
}
static void glue (audio_pcm_hw_free_resources_, TYPE) (HW *hw)
{
g_free(hw->buf_emul);
- g_free (HWBUF);
- HWBUF = NULL;
+ g_free(HWBUF.buffer);
+ HWBUF.buffer = NULL;
+ HWBUF.size = 0;
}
static void glue(audio_pcm_hw_alloc_resources_, TYPE)(HW *hw)
dolog("Attempted to allocate empty buffer\n");
}
- HWBUF = g_malloc0(sizeof(STSampleBuffer) + sizeof(st_sample) * samples);
- HWBUF->size = samples;
+ HWBUF.buffer = g_new0(st_sample, samples);
+ HWBUF.size = samples;
+ HWBUF.pos = 0;
} else {
- HWBUF = NULL;
+ HWBUF.buffer = NULL;
+ HWBUF.size = 0;
}
}
static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw)
{
- g_free (sw->buf);
+ g_free(sw->resample_buf.buffer);
+ sw->resample_buf.buffer = NULL;
+ sw->resample_buf.size = 0;
if (sw->rate) {
st_rate_stop (sw->rate);
}
-
- sw->buf = NULL;
sw->rate = NULL;
}
static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
{
- int samples;
+ HW *hw = sw->hw;
+ uint64_t samples;
if (!glue(audio_get_pdo_, TYPE)(sw->s->dev)->mixing_engine) {
return 0;
}
-#ifdef DAC
- samples = ((int64_t) sw->HWBUF->size << 32) / sw->ratio;
-#else
- samples = (int64_t)sw->HWBUF->size * sw->ratio >> 32;
-#endif
+ samples = muldiv64(HWBUF.size, sw->info.freq, hw->info.freq);
+ if (samples == 0) {
+ uint64_t f_fe_min;
+ uint64_t f_be = (uint32_t)hw->info.freq;
- sw->buf = audio_calloc(__func__, samples, sizeof(struct st_sample));
- if (!sw->buf) {
- dolog ("Could not allocate buffer for `%s' (%d samples)\n",
- SW_NAME (sw), samples);
+ /* f_fe_min = ceil(1 [frames] * f_be [Hz] / size_be [frames]) */
+ f_fe_min = (f_be + HWBUF.size - 1) / HWBUF.size;
+ qemu_log_mask(LOG_UNIMP,
+ AUDIO_CAP ": The guest selected a " NAME " sample rate"
+ " of %d Hz for %s. Only sample rates >= %" PRIu64 " Hz"
+ " are supported.\n",
+ sw->info.freq, sw->name, f_fe_min);
return -1;
}
+ /*
+ * Allocate one additional audio frame that is needed for upsampling
+ * if the resample buffer size is small. For large buffer sizes take
+ * care of overflows and truncation.
+ */
+ samples = samples < SIZE_MAX ? samples + 1 : SIZE_MAX;
+ sw->resample_buf.buffer = g_new0(st_sample, samples);
+ sw->resample_buf.size = samples;
+ sw->resample_buf.pos = 0;
+
#ifdef DAC
- sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq);
+ sw->rate = st_rate_start(sw->info.freq, hw->info.freq);
#else
- sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq);
+ sw->rate = st_rate_start(hw->info.freq, sw->info.freq);
#endif
- if (!sw->rate) {
- g_free (sw->buf);
- sw->buf = NULL;
- return -1;
- }
+
return 0;
}
sw->hw = hw;
sw->active = 0;
#ifdef DAC
- sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq;
sw->total_hw_samples_mixed = 0;
sw->empty = 1;
-#else
- sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq;
#endif
if (sw->info.is_float) {
return NULL;
}
- hw = audio_calloc(__func__, 1, glue(drv->voice_size_, TYPE));
- if (!hw) {
- dolog ("Can not allocate voice `%s' size %d\n",
- drv->name, glue (drv->voice_size_, TYPE));
- return NULL;
- }
-
+ /*
+ * Since glue(s->nb_hw_voices_, TYPE) is != 0, glue(drv->voice_size_, TYPE)
+ * is guaranteed to be != 0. See the audio_init_nb_voices_* functions.
+ */
+ hw = g_malloc0(glue(drv->voice_size_, TYPE));
hw->s = s;
hw->pcm_ops = drv->pcm_ops;
case AUDIODEV_DRIVER_PA:
return qapi_AudiodevPaPerDirectionOptions_base(dev->u.pa.TYPE);
#endif
+#ifdef CONFIG_AUDIO_PIPEWIRE
+ case AUDIODEV_DRIVER_PIPEWIRE:
+ return qapi_AudiodevPipewirePerDirectionOptions_base(dev->u.pipewire.TYPE);
+#endif
#ifdef CONFIG_AUDIO_SDL
case AUDIODEV_DRIVER_SDL:
return qapi_AudiodevSdlPerDirectionOptions_base(dev->u.sdl.TYPE);
hw_as = *as;
}
- sw = audio_calloc(__func__, 1, sizeof(*sw));
- if (!sw) {
- dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
- sw_name ? sw_name : "unknown", sizeof (*sw));
- goto err1;
- }
+ sw = g_new0(SW, 1);
sw->s = s;
hw = glue(audio_pcm_hw_add_, TYPE)(s, &hw_as);
if (!hw) {
- goto err2;
+ dolog("Could not create a backend for voice `%s'\n", sw_name);
+ goto err1;
}
glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
- goto err3;
+ goto err2;
}
return sw;
-err3:
+err2:
glue (audio_pcm_hw_del_sw_, TYPE) (sw);
glue (audio_pcm_hw_gc_, TYPE) (&hw);
-err2:
- g_free (sw);
err1:
+ g_free(sw);
return NULL;
}
HW *hw = sw->hw;
if (!hw) {
- dolog ("Internal logic error voice `%s' has no hardware store\n",
- SW_NAME (sw));
+ dolog("Internal logic error: voice `%s' has no backend\n",
+ SW_NAME(sw));
goto fail;
}
} else {
sw = glue(audio_pcm_create_voice_pair_, TYPE)(s, name, as);
if (!sw) {
- dolog ("Failed to create voice `%s'\n", name);
return NULL;
}
}
projects / mirror_qemu.git / blobdiff