root/branches/libfreebob-2.0/src/libstreaming/freebob_streaming.cpp

Revision 244, 13.7 kB (checked in by pieterpalmers, 18 years ago)

- first try to implement the SYT synchronisation.

Not working yet.

- committing to spend some time to get the Motu people going.

Line 
1 /* $Id$ */
2
3 /*
4  *   FreeBob Streaming API
5  *   FreeBob = Firewire (pro-)audio for linux
6  *
7  *   http://freebob.sf.net
8  *
9  *   Copyright (C) 2005,2006 Pieter Palmers <pieterpalmers@users.sourceforge.net>
10  *
11  *   This program is free software {} you can redistribute it and/or modify
12  *   it under the terms of the GNU General Public License as published by
13  *   the Free Software Foundation {} either version 2 of the License, or
14  *   (at your option) any later version.
15  *
16  *   This program is distributed in the hope that it will be useful,
17  *   but WITHOUT ANY WARRANTY {} without even the implied warranty of
18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  *   GNU General Public License for more details.
20  *
21  *   You should have received a copy of the GNU General Public License
22  *   along with this program {} if not, write to the Free Software
23  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24  *
25  *
26  *
27  */
28
29 /* freebob_streaming.c
30  *
31  * Implementation of the FreeBob Streaming API
32  *
33  */
34
35 #include "libfreebob/freebob_streaming.h"
36 #include "../devicemanager.h"
37 #include "../iavdevice.h"
38
39 #include "IsoHandler.h"
40 #include "IsoStream.h"
41 #include "StreamProcessor.h"
42 #include "StreamProcessorManager.h"
43 #include "AmdtpStreamProcessor.h"
44 #include "IsoHandlerManager.h"
45 #include "StreamRunner.h"
46 #include "FreebobPosixThread.h"
47 #include "AmdtpPort.h"
48
49 #include <assert.h>
50
51 #include <string.h>
52 #include <string>
53
54 /**
55  * Device structure
56  */
57
58 DECLARE_GLOBAL_DEBUG_MODULE;
59
60 using namespace FreebobStreaming;
61
62 struct _freebob_device
63 {       
64         DeviceManager * m_deviceManager;
65         StreamProcessorManager *processorManager;
66
67         freebob_options_t options;
68         freebob_device_info_t device_info;
69 };
70
71 freebob_device_t *freebob_streaming_init (freebob_device_info_t *device_info, freebob_options_t options) {
72         int i=0;
73
74         struct _freebob_device *dev = new struct _freebob_device;
75
76     debugFatal("%s built %s %s\n", freebob_get_version(), __DATE__, __TIME__);
77
78         if(!dev) {
79                 debugFatal( "Could not allocate streaming device\n" );
80                 return 0;
81         }
82
83         memcpy((void *)&dev->options, (void *)&options, sizeof(dev->options));
84         memcpy((void *)&dev->device_info, (void *)device_info, sizeof(dev->device_info));
85
86         dev->m_deviceManager = new DeviceManager();
87         if ( !dev->m_deviceManager ) {
88                 debugFatal( "Could not allocate device manager\n" );
89                         delete dev;
90                 return 0;
91         }
92         if ( !dev->m_deviceManager->initialize( dev->options.port ) ) {
93                 debugFatal( "Could not initialize device manager\n" );
94                 delete dev->m_deviceManager;
95                         delete dev;
96                 return 0;
97         }
98
99         // create a processor manager to manage the actual stream
100         // processors   
101         dev->processorManager = new StreamProcessorManager(dev->options.period_size,dev->options.nb_buffers);
102         if(!dev->processorManager) {
103                 debugFatal("Could not create StreamProcessorManager\n");
104                 delete dev->m_deviceManager;
105                 delete dev;
106                 return 0;
107         }
108        
109     dev->processorManager->setThreadParameters(dev->options.realtime, dev->options.packetizer_priority);
110        
111         dev->processorManager->setVerboseLevel(DEBUG_LEVEL_VERBOSE);
112         if(!dev->processorManager->init()) {
113                 debugFatal("Could not init StreamProcessorManager\n");
114                 delete dev->processorManager;
115                 delete dev->m_deviceManager;
116                 delete dev;
117                 return 0;
118         }
119
120         // discover the devices on the bus
121         if(!dev->m_deviceManager->discover(DEBUG_LEVEL_VERBOSE)) {
122                 debugOutput(DEBUG_LEVEL_VERBOSE, "Could not discover devices\n");
123                 return 0;
124         }
125
126         // iterate over the found devices
127         // add the stream processors of the devices to the managers
128         for(i=0;i<dev->m_deviceManager->getAvDeviceCount();i++) {
129                 IAvDevice *device=dev->m_deviceManager->getAvDeviceByIndex(i);
130                 assert(device);
131
132                 // prepare the device
133                 device->prepare();
134
135                 int j=0;
136                 for(j=0; j<device->getStreamCount();j++) {
137                         StreamProcessor *streamproc=device->getStreamProcessorByIndex(j);
138                         debugOutput(DEBUG_LEVEL_VERBOSE, "Registering stream processor %d of device %d with processormanager\n",j,i);
139                         if (!dev->processorManager->registerProcessor(streamproc)) {
140                                 debugWarning("Could not register stream processor (%p) with the Processor manager\n",streamproc);
141                         }
142                 }
143         }
144
145         // we are ready!
146        
147         debugOutputShort(DEBUG_LEVEL_VERBOSE, "\n\n");
148         return dev;
149
150 }
151
152 int freebob_streaming_prepare(freebob_device_t *dev) {
153         debugOutput(DEBUG_LEVEL_VERBOSE, "Preparing...\n");
154        
155         dev->processorManager->prepare();
156
157         return true;
158 }
159
160 void freebob_streaming_finish(freebob_device_t *dev) {
161
162         assert(dev);
163
164         delete dev->processorManager;
165         delete dev->m_deviceManager;
166         delete dev;
167
168         return;
169 }
170
171 int freebob_streaming_start(freebob_device_t *dev) {
172         int i=0;
173         debugOutput(DEBUG_LEVEL_VERBOSE,"------------- Start -------------\n");
174
175        
176         // create the connections for all devices
177         // iterate over the found devices
178         // add the stream processors of the devices to the managers
179         for(i=0;i<dev->m_deviceManager->getAvDeviceCount();i++) {
180                 IAvDevice *device=dev->m_deviceManager->getAvDeviceByIndex(i);
181                 assert(device);
182
183                 int j=0;
184                 for(j=0; j<device->getStreamCount();j++) {
185                 debugOutput(DEBUG_LEVEL_VERBOSE,"Starting stream %d of device %d\n",j,i);
186                         // start the stream
187                         device->startStreamByIndex(j);
188                 }
189         }
190
191         dev->processorManager->start();
192
193         return 0;
194 }
195
196 int freebob_streaming_stop(freebob_device_t *dev) {
197         int i;
198         debugOutput(DEBUG_LEVEL_VERBOSE,"------------- Stop -------------\n");
199
200         dev->processorManager->stop();
201
202         // create the connections for all devices
203         // iterate over the found devices
204         // add the stream processors of the devices to the managers
205         for(i=0;i<dev->m_deviceManager->getAvDeviceCount();i++) {
206                 IAvDevice *device=dev->m_deviceManager->getAvDeviceByIndex(i);
207                 assert(device);
208                
209
210                 int j=0;
211                 for(j=0; j<device->getStreamCount();j++) {
212                 debugOutput(DEBUG_LEVEL_VERBOSE,"Stopping stream %d of device %d\n",j,i);
213                         // stop the stream
214                         device->stopStreamByIndex(j);
215                 }
216         }
217
218         return 0;
219 }
220
221 int freebob_streaming_reset(freebob_device_t *dev) {
222         debugOutput(DEBUG_LEVEL_VERBOSE,"------------- Reset -------------\n");
223
224 //      dev->processorManager->reset();
225
226         return 0;
227 }
228
229 int freebob_streaming_wait(freebob_device_t *dev) {
230         static int periods=0;
231         static int periods_print=0;
232         static int xruns=0;
233                
234                 periods++;
235                 if(periods>periods_print) {
236                         debugOutput(DEBUG_LEVEL_VERBOSE, "\n");
237                         debugOutput(DEBUG_LEVEL_VERBOSE, "============================================\n");
238                         debugOutput(DEBUG_LEVEL_VERBOSE, "Xruns: %d\n",xruns);
239                         debugOutput(DEBUG_LEVEL_VERBOSE, "============================================\n");
240                         dev->processorManager->dumpInfo();
241 //                      debugOutput(DEBUG_LEVEL_VERBOSE, "--------------------------------------------\n");
242 /*                      quadlet_t *addr=(quadlet_t*)(dev->processorManager->getPortByIndex(0, Port::E_Capture)->getBufferAddress());
243                         if (addr) hexDumpQuadlets(addr,10);*/
244                         debugOutput(DEBUG_LEVEL_VERBOSE, "\n");
245                         periods_print+=100;
246                 }
247         if(dev->processorManager->waitForPeriod()) {
248                 return dev->options.period_size;
249         } else {
250                 debugWarning("XRUN detected\n");
251                 // do xrun recovery
252                
253                 dev->processorManager->handleXrun();
254                 xruns++;
255                 return -1;
256         }
257 }
258
259 int freebob_streaming_transfer_capture_buffers(freebob_device_t *dev) {
260         return dev->processorManager->transfer(StreamProcessor::E_Receive);
261 }
262
263 int freebob_streaming_transfer_playback_buffers(freebob_device_t *dev) {
264         return dev->processorManager->transfer(StreamProcessor::E_Transmit);
265 }
266
267 int freebob_streaming_transfer_buffers(freebob_device_t *dev) {
268         return dev->processorManager->transfer();
269 }
270
271
272 int freebob_streaming_write(freebob_device_t *dev, int i, freebob_sample_t *buffer, int nsamples) {
273 // debugFatal("Not implemented\n");
274         Port *p=dev->processorManager->getPortByIndex(i, Port::E_Playback);
275         // use an assert here performancewise,
276         // it should already have failed before, if not correct
277         assert(p);
278        
279         return p->writeEvents((void *)buffer, nsamples);
280 }
281
282 int freebob_streaming_read(freebob_device_t *dev, int i, freebob_sample_t *buffer, int nsamples) {
283         Port *p=dev->processorManager->getPortByIndex(i, Port::E_Capture);
284         // use an assert here performancewise,
285         // it should already have failed before, if not correct
286         assert(p);
287        
288         return p->readEvents((void *)buffer, nsamples);
289 }
290
291 pthread_t freebob_streaming_get_packetizer_thread(freebob_device_t *dev) {
292 //      debugFatal("Not implemented\n");
293         return 0;
294 }
295
296
297 int freebob_streaming_get_nb_capture_streams(freebob_device_t *dev) {
298         return dev->processorManager->getPortCount(Port::E_Capture);
299 }
300
301 int freebob_streaming_get_nb_playback_streams(freebob_device_t *dev) {
302         return dev->processorManager->getPortCount(Port::E_Playback);
303 }
304
305 int freebob_streaming_get_capture_stream_name(freebob_device_t *dev, int i, char* buffer, size_t buffersize) {
306         Port *p=dev->processorManager->getPortByIndex(i, Port::E_Capture);
307         if(!p) {
308                 debugWarning("Could not get capture port at index %d\n",i);
309                 return -1;
310         }
311
312         std::string name=p->getName();
313         if (!strncpy(buffer, name.c_str(), buffersize)) {
314                 debugWarning("Could not copy name\n");
315                 return -1;
316         } else return 0;
317 }
318
319 int freebob_streaming_get_playback_stream_name(freebob_device_t *dev, int i, char* buffer, size_t buffersize) {
320        
321         Port *p=dev->processorManager->getPortByIndex(i, Port::E_Playback);
322         if(!p) {
323                 debugWarning("Could not get playback port at index %d\n",i);
324                 return -1;
325         }
326
327         std::string name=p->getName();
328         if (!strncpy(buffer, name.c_str(), buffersize)) {
329                 debugWarning("Could not copy name\n");
330                 return -1;
331         } else return 0;
332 }
333
334 freebob_streaming_stream_type freebob_streaming_get_capture_stream_type(freebob_device_t *dev, int i) {
335         Port *p=dev->processorManager->getPortByIndex(i, Port::E_Capture);
336         if(!p) {
337                 debugWarning("Could not get capture port at index %d\n",i);
338                 return freebob_stream_type_invalid;
339         }
340         switch(p->getPortType()) {
341         case Port::E_Audio:
342                 return freebob_stream_type_audio;
343         case Port::E_Midi:
344                 return freebob_stream_type_midi;
345         case Port::E_Control:
346                 return freebob_stream_type_control;
347         default:
348                 return freebob_stream_type_unknown;
349         }
350 }
351
352 freebob_streaming_stream_type freebob_streaming_get_playback_stream_type(freebob_device_t *dev, int i) {
353         Port *p=dev->processorManager->getPortByIndex(i, Port::E_Playback);
354         if(!p) {
355                 debugWarning("Could not get playback port at index %d\n",i);
356                 return freebob_stream_type_invalid;
357         }
358         switch(p->getPortType()) {
359         case Port::E_Audio:
360                 return freebob_stream_type_audio;
361         case Port::E_Midi:
362                 return freebob_stream_type_midi;
363         case Port::E_Control:
364                 return freebob_stream_type_control;
365         default:
366                 return freebob_stream_type_unknown;
367         }
368 }
369
370 int freebob_streaming_set_stream_buffer_type(freebob_device_t *dev, int i,
371         freebob_streaming_buffer_type t, enum Port::E_Direction direction) {
372
373         Port *p=dev->processorManager->getPortByIndex(i, direction);
374         if(!p) {
375                 debugWarning("Could not get %s port at index %d\n",
376                       (direction==Port::E_Playback?"Playback":"Capture"),i);
377                 return -1;
378         }
379        
380         switch(t) {
381         case freebob_buffer_type_int24:
382            if (!p->setDataType(Port::E_Int24)) {
383                debugWarning("%s: Could not set data type to Int24\n",p->getName().c_str());
384                return -1;
385            }
386            if (!p->setBufferType(Port::E_PointerBuffer)) {
387                debugWarning("%s: Could not set buffer type to Pointerbuffer\n",p->getName().c_str());
388                return -1;
389            }
390            break;
391         case freebob_buffer_type_float:
392            if (!p->setDataType(Port::E_Float)) {
393                debugWarning("%s: Could not set data type to Float\n",p->getName().c_str());
394                return -1;
395            }
396            if (!p->setBufferType(Port::E_PointerBuffer)) {
397                debugWarning("%s: Could not set buffer type to Pointerbuffer\n",p->getName().c_str());
398                return -1;
399            }
400            break;
401         case freebob_buffer_type_midi:
402            if (!p->setDataType(Port::E_MidiEvent)) {
403                debugWarning("%s: Could not set data type to MidiEvent\n",p->getName().c_str());
404                return -1;
405            }
406            if (!p->setBufferType(Port::E_RingBuffer)) {
407                debugWarning("%s: Could not set buffer type to Ringbuffer\n",p->getName().c_str());
408                return -1;
409            }
410            break;
411         default:
412        debugWarning("%s: Unsupported buffer type\n",p->getName().c_str());
413        return -1;
414         }
415     return 0;
416
417 }
418
419 int freebob_streaming_set_playback_buffer_type(freebob_device_t *dev, int i, freebob_streaming_buffer_type t) {
420     return freebob_streaming_set_stream_buffer_type(dev, i, t, Port::E_Playback);
421 }
422
423 int freebob_streaming_set_capture_buffer_type(freebob_device_t *dev, int i, freebob_streaming_buffer_type t) {
424     return freebob_streaming_set_stream_buffer_type(dev, i, t, Port::E_Capture);
425 }
426
427 int freebob_streaming_stream_onoff(freebob_device_t *dev, int i,
428         int on, enum Port::E_Direction direction) {
429         Port *p=dev->processorManager->getPortByIndex(i, direction);
430         if(!p) {
431                 debugWarning("Could not get %s port at index %d\n",
432                       (direction==Port::E_Playback?"Playback":"Capture"),i);
433                 return -1;
434         }
435         if(on) {
436            p->enable();
437         } else {
438            p->disable();
439         }
440         return 0;
441 }
442
443 int freebob_streaming_playback_stream_onoff(freebob_device_t *dev, int number, int on) {
444     return freebob_streaming_stream_onoff(dev, number, on, Port::E_Playback);
445 }
446
447 int freebob_streaming_capture_stream_onoff(freebob_device_t *dev, int number, int on) {
448     return freebob_streaming_stream_onoff(dev, number, on, Port::E_Capture);
449 }
450
451 // TODO: the way port buffers are set in the C api doesn't satisfy me
452 int freebob_streaming_set_capture_stream_buffer(freebob_device_t *dev, int i, char *buff) {
453         Port *p=dev->processorManager->getPortByIndex(i, Port::E_Capture);
454        
455         // use an assert here performancewise,
456         // it should already have failed before, if not correct
457         assert(p);
458        
459         p->setExternalBufferAddress((void *)buff);
460
461         return 0;
462
463 }
464
465 int freebob_streaming_set_playback_stream_buffer(freebob_device_t *dev, int i, char *buff) {
466         Port *p=dev->processorManager->getPortByIndex(i, Port::E_Playback);
467         // use an assert here performancewise,
468         // it should already have failed before, if not correct
469         assert(p);
470        
471         p->setExternalBufferAddress((void *)buff);
472
473         return 0;
474 }
475
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