31 |
int g_dsp_fd; |
int g_dsp_fd; |
32 |
ao_device *o_device = NULL; |
ao_device *o_device = NULL; |
33 |
int default_driver; |
int default_driver; |
34 |
|
int g_samplerate; |
35 |
BOOL g_dsp_busy = False; |
BOOL g_dsp_busy = False; |
36 |
static short g_samplewidth; |
static short g_samplewidth; |
37 |
|
|
54 |
format.bits = 16; |
format.bits = 16; |
55 |
format.channels = 2; |
format.channels = 2; |
56 |
format.rate = 44100; |
format.rate = 44100; |
57 |
|
g_samplerate = 44100; |
58 |
format.byte_format = AO_FMT_LITTLE; |
format.byte_format = AO_FMT_LITTLE; |
59 |
|
|
60 |
o_device = ao_open_live(default_driver, &format, NULL); |
o_device = ao_open_live(default_driver, &format, NULL); |
95 |
if ((pwfx->wBitsPerSample != 8) && (pwfx->wBitsPerSample != 16)) |
if ((pwfx->wBitsPerSample != 8) && (pwfx->wBitsPerSample != 16)) |
96 |
return False; |
return False; |
97 |
/* The only common denominator between libao output drivers is a sample-rate of |
/* The only common denominator between libao output drivers is a sample-rate of |
98 |
44100, windows gives a max of 22050. we need to upsample that... |
44100, we need to upsample 22050 to it */ |
99 |
TODO: support 11025, too */ |
if ((pwfx->nSamplesPerSec != 44100) && (pwfx->nSamplesPerSec != 22050)) |
|
if (pwfx->nSamplesPerSec != 22050) |
|
100 |
return False; |
return False; |
101 |
|
|
102 |
return True; |
return True; |
107 |
{ |
{ |
108 |
ao_sample_format format; |
ao_sample_format format; |
109 |
|
|
|
printf("%d\n",pwfx->wBitsPerSample); |
|
110 |
format.bits = pwfx->wBitsPerSample; |
format.bits = pwfx->wBitsPerSample; |
111 |
format.channels = pwfx->nChannels; |
format.channels = pwfx->nChannels; |
112 |
format.rate = 44100; |
format.rate = 44100; |
113 |
|
g_samplerate = pwfx->nSamplesPerSec; |
114 |
format.byte_format = AO_FMT_LITTLE; |
format.byte_format = AO_FMT_LITTLE; |
115 |
|
|
116 |
g_samplewidth = pwfx->wBitsPerSample / 8; |
g_samplewidth = pwfx->wBitsPerSample / 8; |
164 |
{ |
{ |
165 |
struct audio_packet *packet; |
struct audio_packet *packet; |
166 |
STREAM out; |
STREAM out; |
167 |
unsigned char expanded[8]; |
unsigned char expanded[16]; |
168 |
|
int offset,len,i; |
169 |
|
|
170 |
while (1) |
if (queue_lo == queue_hi) |
171 |
{ |
{ |
172 |
if (queue_lo == queue_hi) |
g_dsp_busy = 0; |
173 |
{ |
return; |
174 |
g_dsp_busy = 0; |
} |
|
return; |
|
|
} |
|
|
|
|
|
packet = &packet_queue[queue_lo]; |
|
|
out = &packet->s; |
|
175 |
|
|
176 |
/* Resample 22050 -> 44100 */ |
packet = &packet_queue[queue_lo]; |
177 |
/* TODO: Do this for 11025, too... */ |
out = &packet->s; |
|
memcpy(&expanded[0],out->p,g_samplewidth); |
|
|
memcpy(&expanded[2*g_samplewidth],out->p,g_samplewidth); |
|
|
out->p += 2; |
|
|
memcpy(&expanded[1*g_samplewidth],out->p,g_samplewidth); |
|
|
memcpy(&expanded[3*g_samplewidth],out->p,g_samplewidth); |
|
|
out->p += 2; |
|
178 |
|
|
179 |
ao_play(o_device, expanded, g_samplewidth*4); |
len = 0; |
180 |
|
|
181 |
if (out->p == out->end) |
if (g_samplerate == 22050 ) |
182 |
|
{ |
183 |
|
/* Resample to 44100 */ |
184 |
|
for(i=0; (i<(2*(3-g_samplewidth))) && (out->p < out->end); i++) |
185 |
{ |
{ |
186 |
rdpsnd_send_completion(packet->tick, packet->index); |
offset=i*4*g_samplewidth; |
187 |
free(out->data); |
memcpy(&expanded[0*g_samplewidth+offset],out->p,g_samplewidth); |
188 |
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
memcpy(&expanded[2*g_samplewidth+offset],out->p,g_samplewidth); |
189 |
} else { |
out->p += 2; |
190 |
g_dsp_busy = 1; |
|
191 |
return; |
memcpy(&expanded[1*g_samplewidth+offset],out->p,g_samplewidth); |
192 |
|
memcpy(&expanded[3*g_samplewidth+offset],out->p,g_samplewidth); |
193 |
|
out->p += 2; |
194 |
|
len += 4*g_samplewidth; |
195 |
} |
} |
196 |
} |
} |
197 |
|
else |
198 |
|
{ |
199 |
|
len = (16 > (out->end - out->p)) ? (out->end - out->p) : 16; |
200 |
|
memcpy(expanded,out->p,len); |
201 |
|
out->p += len; |
202 |
|
} |
203 |
|
|
204 |
|
ao_play(o_device, expanded, len); |
205 |
|
|
206 |
|
if (out->p == out->end) |
207 |
|
{ |
208 |
|
rdpsnd_send_completion(packet->tick, packet->index); |
209 |
|
free(out->data); |
210 |
|
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
211 |
|
} |
212 |
|
|
213 |
|
g_dsp_busy = 1; |
214 |
|
return; |
215 |
} |
} |