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Diffstat (limited to 'audio/wavaudio.c')
-rw-r--r--audio/wavaudio.c57
1 files changed, 32 insertions, 25 deletions
diff --git a/audio/wavaudio.c b/audio/wavaudio.c
index e9bd87872f..4cc9ca7f84 100644
--- a/audio/wavaudio.c
+++ b/audio/wavaudio.c
@@ -35,9 +35,15 @@ typedef struct WAVVoiceOut {
} WAVVoiceOut;
static struct {
+ audsettings_t settings;
const char *wav_path;
} conf = {
- .wav_path = "qemu.wav"
+ {
+ 44100,
+ 2,
+ AUD_FMT_S16
+ },
+ "qemu.wav"
};
static int wav_run_out (HWVoiceOut *hw)
@@ -101,22 +107,22 @@ static void le_store (uint8_t *buf, uint32_t val, int len)
}
}
-static int wav_init_out (HWVoiceOut *hw, int freq, int nchannels, audfmt_e fmt)
+static int wav_init_out (HWVoiceOut *hw, audsettings_t *as)
{
WAVVoiceOut *wav = (WAVVoiceOut *) hw;
- int bits16;
+ int bits16 = 0, stereo = 0;
uint8_t hdr[] = {
0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56,
0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00,
0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04,
0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00
};
+ audsettings_t wav_as = conf.settings;
- freq = audio_state.fixed_freq_out;
- fmt = audio_state.fixed_fmt_out;
- nchannels = audio_state.fixed_channels_out;
+ (void) as;
- switch (fmt) {
+ stereo = wav_as.nchannels == 2;
+ switch (wav_as.fmt) {
case AUD_FMT_S8:
case AUD_FMT_U8:
bits16 = 0;
@@ -126,32 +132,24 @@ static int wav_init_out (HWVoiceOut *hw, int freq, int nchannels, audfmt_e fmt)
case AUD_FMT_U16:
bits16 = 1;
break;
-
- default:
- dolog ("Internal logic error bad format %d\n", fmt);
- return -1;
}
hdr[34] = bits16 ? 0x10 : 0x08;
- audio_pcm_init_info (
- &hw->info,
- freq,
- nchannels,
- bits16 ? AUD_FMT_S16 : AUD_FMT_U8,
- audio_need_to_swap_endian (0)
- );
- hw->bufsize = 4096;
- wav->pcm_buf = qemu_mallocz (hw->bufsize);
+
+ audio_pcm_init_info (&hw->info, &wav_as, audio_need_to_swap_endian (0));
+
+ hw->samples = 1024;
+ wav->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
if (!wav->pcm_buf) {
- dolog ("Can not initialize WAV buffer of %d bytes\n",
- hw->bufsize);
+ dolog ("Could not allocate buffer (%d bytes)\n",
+ hw->samples << hw->info.shift);
return -1;
}
le_store (hdr + 22, hw->info.nchannels, 2);
le_store (hdr + 24, hw->info.freq, 4);
- le_store (hdr + 28, hw->info.freq << (bits16 + (nchannels == 2)), 4);
- le_store (hdr + 32, 1 << (bits16 + (nchannels == 2)), 2);
+ le_store (hdr + 28, hw->info.freq << (bits16 + stereo), 4);
+ le_store (hdr + 32, 1 << (bits16 + stereo), 2);
wav->f = fopen (conf.wav_path, "wb");
if (!wav->f) {
@@ -175,7 +173,7 @@ static void wav_fini_out (HWVoiceOut *hw)
uint32_t rifflen = (wav->total_samples << stereo) + 36;
uint32_t datalen = wav->total_samples << stereo;
- if (!wav->f || !hw->active) {
+ if (!wav->f) {
return;
}
@@ -214,6 +212,15 @@ static void wav_audio_fini (void *opaque)
}
struct audio_option wav_options[] = {
+ {"FREQUENCY", AUD_OPT_INT, &conf.settings.freq,
+ "Frequency", NULL, 0},
+
+ {"FORMAT", AUD_OPT_FMT, &conf.settings.fmt,
+ "Format", NULL, 0},
+
+ {"DAC_FIXED_CHANNELS", AUD_OPT_INT, &conf.settings.nchannels,
+ "Number of channels (1 - mono, 2 - stereo)", NULL, 0},
+
{"PATH", AUD_OPT_STR, &conf.wav_path,
"Path to wave file", NULL, 0},
{NULL, 0, NULL, NULL, NULL, 0}