DrvAudioRec.cpp@ 105006

Last change on this file since 105006 was 105006, checked in by vboxsync, 5 months ago
Video Recording: Big revamp to improve overall performance. We now don't rely on the periodic display refresh callback anymore to render the entire framebuffer but now rely on delta updates ("dirty rectangles"). Also, we now only encode new frames when an area has changed. This also needed cursor position + change change notifications, as we render the cursor on the host side if mouse integration is enabled (requires 7.1 Guest Additions as of now). Optimized the BGRA32->YUV IV420 color space conversion as well as the overall amount of pixel data shuffled forth and back. Added a new testcase for the cropping/centering code. bugref:10650
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 31.5 KB

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1	/* $Id: DrvAudioRec.cpp 105006 2024-06-24 17:43:00Z vboxsync $ */
2	/** @file
3	* Video recording audio backend for Main.
4	*
5	* This driver is part of Main and is responsible for providing audio
6	* data to Main's video capturing feature.
7	*
8	* The driver itself implements a PDM host audio backend, which in turn
9	* provides the driver with the required audio data and audio events.
10	*
11	* For now there is support for the following destinations (called "sinks"):
12	*
13	* - Direct writing of .webm files to the host.
14	* - Communicating with Main via the Console object to send the encoded audio data to.
15	* The Console object in turn then will route the data to the Display / video capturing interface then.
16	*/
17
18	/*
19	* Copyright (C) 2016-2023 Oracle and/or its affiliates.
20	*
21	* This file is part of VirtualBox base platform packages, as
22	* available from https://www.virtualbox.org.
23	*
24	* This program is free software; you can redistribute it and/or
25	* modify it under the terms of the GNU General Public License
26	* as published by the Free Software Foundation, in version 3 of the
27	* License.
28	*
29	* This program is distributed in the hope that it will be useful, but
30	* WITHOUT ANY WARRANTY; without even the implied warranty of
31	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
32	* General Public License for more details.
33	*
34	* You should have received a copy of the GNU General Public License
35	* along with this program; if not, see <https://www.gnu.org/licenses>.
36	*
37	* SPDX-License-Identifier: GPL-3.0-only
38	*/
39
40
41	/*********************************************************************************************************************************
42	* Header Files *
43	*********************************************************************************************************************************/
44	#define LOG_GROUP LOG_GROUP_RECORDING
45	#include "LoggingNew.h"
46
47	#include "DrvAudioRec.h"
48	#include "ConsoleImpl.h"
49
50	#include "WebMWriter.h"
51
52	#include <iprt/mem.h>
53	#include <iprt/cdefs.h>
54
55	#include "VBox/com/VirtualBox.h"
56	#include <VBox/vmm/cfgm.h>
57	#include <VBox/vmm/pdmdrv.h>
58	#include <VBox/vmm/pdmaudioifs.h>
59	#include <VBox/vmm/pdmaudioinline.h>
60	#include <VBox/vmm/vmmr3vtable.h>
61	#include <VBox/err.h>
62	#include "VBox/settings.h"
63
64
65	/*********************************************************************************************************************************
66	* Structures and Typedefs *
67	*********************************************************************************************************************************/
68	/**
69	* Enumeration for specifying the recording container type.
70	*/
71	typedef enum AVRECCONTAINERTYPE
72	{
73	/** Unknown / invalid container type. */
74	AVRECCONTAINERTYPE_UNKNOWN = 0,
75	/** Recorded data goes to Main / Console. */
76	AVRECCONTAINERTYPE_MAIN_CONSOLE = 1,
77	/** Recorded data will be written to a .webm file. */
78	AVRECCONTAINERTYPE_WEBM = 2
79	} AVRECCONTAINERTYPE;
80
81	/**
82	* Structure for keeping generic container parameters.
83	*/
84	typedef struct AVRECCONTAINERPARMS
85	{
86	/** Stream index (hint). */
87	uint32_t idxStream;
88	/** The container's type. */
89	AVRECCONTAINERTYPE enmType;
90	union
91	{
92	/** WebM file specifics. */
93	struct
94	{
95	/** Allocated file name to write .webm file to. Must be free'd. */
96	char *pszFile;
97	} WebM;
98	};
99
100	} AVRECCONTAINERPARMS, *PAVRECCONTAINERPARMS;
101
102	/**
103	* Structure for keeping container-specific data.
104	*/
105	typedef struct AVRECCONTAINER
106	{
107	/** Generic container parameters. */
108	AVRECCONTAINERPARMS Parms;
109
110	union
111	{
112	struct
113	{
114	/** Pointer to Console. */
115	Console *pConsole;
116	} Main;
117
118	struct
119	{
120	/** Pointer to WebM container to write recorded audio data to.
121	* See the AVRECMODE enumeration for more information. */
122	WebMWriter *pWebM;
123	/** Assigned track number from WebM container. */
124	uint8_t uTrack;
125	} WebM;
126	};
127	} AVRECCONTAINER, *PAVRECCONTAINER;
128
129	/**
130	* Audio video recording sink.
131	*/
132	typedef struct AVRECSINK
133	{
134	/** Pointer (weak) to recording stream to bind to. */
135	RecordingStream *pRecStream;
136	/** Container data to use for data processing. */
137	AVRECCONTAINER Con;
138	/** Timestamp (in ms) of when the sink was created. */
139	uint64_t tsStartMs;
140	} AVRECSINK, *PAVRECSINK;
141
142	/**
143	* Audio video recording (output) stream.
144	*/
145	typedef struct AVRECSTREAM
146	{
147	/** Common part. */
148	PDMAUDIOBACKENDSTREAM Core;
149	/** The stream's acquired configuration. */
150	PDMAUDIOSTREAMCFG Cfg;
151	/** (Audio) frame buffer. */
152	PRTCIRCBUF pCircBuf;
153	/** Pointer to sink to use for writing. */
154	PAVRECSINK pSink;
155	/** Last encoded PTS (in ms). */
156	uint64_t uLastPTSMs;
157	/** Temporary buffer for the input (source) data to encode. */
158	void *pvSrcBuf;
159	/** Size (in bytes) of the temporary buffer holding the input (source) data to encode. */
160	size_t cbSrcBuf;
161	} AVRECSTREAM, *PAVRECSTREAM;
162
163	/**
164	* Video recording audio driver instance data.
165	*/
166	typedef struct DRVAUDIORECORDING
167	{
168	/** Pointer to audio video recording object. */
169	AudioVideoRec *pAudioVideoRec;
170	/** Pointer to the driver instance structure. */
171	PPDMDRVINS pDrvIns;
172	/** Pointer to host audio interface. */
173	PDMIHOSTAUDIO IHostAudio;
174	/** Pointer to the console object. */
175	ComPtr<Console> pConsole;
176	/** Pointer to the DrvAudio port interface that is above us. */
177	AVRECCONTAINERPARMS ContainerParms;
178	/** Weak pointer to recording context to use. */
179	RecordingContext *pRecCtx;
180	/** The driver's sink for writing output to. */
181	AVRECSINK Sink;
182	} DRVAUDIORECORDING, *PDRVAUDIORECORDING;
183
184
185	AudioVideoRec::AudioVideoRec(Console *pConsole)
186	: AudioDriver(pConsole)
187	, mpDrv(NULL)
188	{
189	}
190
191
192	AudioVideoRec::~AudioVideoRec(void)
193	{
194	if (mpDrv)
195	{
196	mpDrv->pAudioVideoRec = NULL;
197	mpDrv = NULL;
198	}
199	}
200
201
202	/**
203	* Applies recording settings to this driver instance.
204	*
205	* @returns VBox status code.
206	* @param Settings Recording settings to apply.
207	*/
208	int AudioVideoRec::applyConfiguration(const settings::RecordingSettings &Settings)
209	{
210	/** @todo Do some validation here. */
211	mSettings = Settings; /* Note: Does have an own copy operator. */
212	return VINF_SUCCESS;
213	}
214
215
216	int AudioVideoRec::configureDriver(PCFGMNODE pLunCfg, PCVMMR3VTABLE pVMM)
217	{
218	/** @todo For now we're using the configuration of the first screen (screen 0) here audio-wise. */
219	unsigned const idxScreen = 0;
220
221	AssertReturn(mSettings.mapScreens.size() >= 1, VERR_INVALID_PARAMETER);
222	const settings::RecordingScreenSettings &screenSettings = mSettings.mapScreens[idxScreen];
223
224	int vrc = pVMM->pfnCFGMR3InsertInteger(pLunCfg, "ContainerType", (uint64_t)screenSettings.enmDest);
225	AssertRCReturn(vrc, vrc);
226	if (screenSettings.enmDest == RecordingDestination_File)
227	{
228	vrc = pVMM->pfnCFGMR3InsertString(pLunCfg, "ContainerFileName", Utf8Str(screenSettings.File.strName).c_str());
229	AssertRCReturn(vrc, vrc);
230	}
231
232	vrc = pVMM->pfnCFGMR3InsertInteger(pLunCfg, "StreamIndex", (uint32_t)idxScreen);
233	AssertRCReturn(vrc, vrc);
234
235	return AudioDriver::configureDriver(pLunCfg, pVMM);
236	}
237
238
239	/*********************************************************************************************************************************
240	* PDMIHOSTAUDIO *
241	*********************************************************************************************************************************/
242
243	/**
244	* @interface_method_impl{PDMIHOSTAUDIO,pfnGetConfig}
245	*/
246	static DECLCALLBACK(int) drvAudioVideoRecHA_GetConfig(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDCFG pBackendCfg)
247	{
248	RT_NOREF(pInterface);
249	AssertPtrReturn(pBackendCfg, VERR_INVALID_POINTER);
250
251	/*
252	* Fill in the config structure.
253	*/
254	RTStrCopy(pBackendCfg->szName, sizeof(pBackendCfg->szName), "VideoRec");
255	pBackendCfg->cbStream = sizeof(AVRECSTREAM);
256	pBackendCfg->fFlags = 0;
257	pBackendCfg->cMaxStreamsIn = 0;
258	pBackendCfg->cMaxStreamsOut = UINT32_MAX;
259
260	return VINF_SUCCESS;
261	}
262
263
264	/**
265	* @interface_method_impl{PDMIHOSTAUDIO,pfnGetStatus}
266	*/
267	static DECLCALLBACK(PDMAUDIOBACKENDSTS) drvAudioVideoRecHA_GetStatus(PPDMIHOSTAUDIO pInterface, PDMAUDIODIR enmDir)
268	{
269	RT_NOREF(pInterface, enmDir);
270	return PDMAUDIOBACKENDSTS_RUNNING;
271	}
272
273
274	/**
275	* Creates an audio output stream and associates it with the specified recording sink.
276	*
277	* @returns VBox status code.
278	* @param pThis Driver instance.
279	* @param pStreamAV Audio output stream to create.
280	* @param pSink Recording sink to associate audio output stream to.
281	* @param pCfgReq Requested configuration by the audio backend.
282	* @param pCfgAcq Acquired configuration by the audio output stream.
283	*/
284	static int avRecCreateStreamOut(PDRVAUDIORECORDING pThis, PAVRECSTREAM pStreamAV,
285	PAVRECSINK pSink, PCPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
286	{
287	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
288	AssertPtrReturn(pStreamAV, VERR_INVALID_POINTER);
289	AssertPtrReturn(pSink, VERR_INVALID_POINTER);
290	AssertPtrReturn(pCfgReq, VERR_INVALID_POINTER);
291	AssertPtrReturn(pCfgAcq, VERR_INVALID_POINTER);
292
293	if (pCfgReq->enmPath != PDMAUDIOPATH_OUT_FRONT)
294	{
295	LogRel(("Recording: Support for surround audio not implemented yet\n"));
296	AssertFailed();
297	return VERR_NOT_SUPPORTED;
298	}
299
300	PRECORDINGCODEC pCodec = pSink->pRecStream->GetAudioCodec();
301
302	/* Stuff which has to be set by now. */
303	Assert(pCodec->Parms.cbFrame);
304	Assert(pCodec->Parms.msFrame);
305
306	int vrc = RTCircBufCreate(&pStreamAV->pCircBuf, pCodec->Parms.cbFrame * 2 /* Use "double buffering" */);
307	if (RT_SUCCESS(vrc))
308	{
309	size_t cbScratchBuf = pCodec->Parms.cbFrame;
310	pStreamAV->pvSrcBuf = RTMemAlloc(cbScratchBuf);
311	if (pStreamAV->pvSrcBuf)
312	{
313	pStreamAV->cbSrcBuf = cbScratchBuf;
314
315	pStreamAV->pSink = pSink; /* Assign sink to stream. */
316	pStreamAV->uLastPTSMs = 0;
317
318	/* Make sure to let the driver backend know that we need the audio data in
319	* a specific sampling rate the codec is optimized for. */
320	pCfgAcq->Props = pCodec->Parms.u.Audio.PCMProps;
321
322	/* Every codec frame marks a period for now. Optimize this later. */
323	pCfgAcq->Backend.cFramesPeriod = PDMAudioPropsMilliToFrames(&pCfgAcq->Props, pCodec->Parms.msFrame);
324	pCfgAcq->Backend.cFramesBufferSize = pCfgAcq->Backend.cFramesPeriod * 2;
325	pCfgAcq->Backend.cFramesPreBuffering = pCfgAcq->Backend.cFramesPeriod;
326	}
327	else
328	vrc = VERR_NO_MEMORY;
329	}
330
331	LogFlowFuncLeaveRC(vrc);
332	return vrc;
333	}
334
335
336	/**
337	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamCreate}
338	*/
339	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamCreate(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
340	PCPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
341	{
342	PDRVAUDIORECORDING pThis = RT_FROM_CPP_MEMBER(pInterface, DRVAUDIORECORDING, IHostAudio);
343	PAVRECSTREAM pStreamAV = (PAVRECSTREAM)pStream;
344	AssertPtrReturn(pStreamAV, VERR_INVALID_POINTER);
345	AssertPtrReturn(pCfgReq, VERR_INVALID_POINTER);
346	AssertPtrReturn(pCfgAcq, VERR_INVALID_POINTER);
347
348	if (pCfgReq->enmDir == PDMAUDIODIR_IN)
349	return VERR_NOT_SUPPORTED;
350
351	/* For now we only have one sink, namely the driver's one.
352	* Later each stream could have its own one, to e.g. router different stream to different sinks .*/
353	PAVRECSINK pSink = &pThis->Sink;
354
355	int vrc = avRecCreateStreamOut(pThis, pStreamAV, pSink, pCfgReq, pCfgAcq);
356	PDMAudioStrmCfgCopy(&pStreamAV->Cfg, pCfgAcq);
357
358	return vrc;
359	}
360
361
362	/**
363	* Destroys (closes) an audio output stream.
364	*
365	* @returns VBox status code.
366	* @param pThis Driver instance.
367	* @param pStreamAV Audio output stream to destroy.
368	*/
369	static int avRecDestroyStreamOut(PDRVAUDIORECORDING pThis, PAVRECSTREAM pStreamAV)
370	{
371	RT_NOREF(pThis);
372
373	if (pStreamAV->pCircBuf)
374	{
375	RTCircBufDestroy(pStreamAV->pCircBuf);
376	pStreamAV->pCircBuf = NULL;
377	}
378
379	if (pStreamAV->pvSrcBuf)
380	{
381	Assert(pStreamAV->cbSrcBuf);
382	RTMemFree(pStreamAV->pvSrcBuf);
383	pStreamAV->pvSrcBuf = NULL;
384	pStreamAV->cbSrcBuf = 0;
385	}
386
387	return VINF_SUCCESS;
388	}
389
390
391	/**
392	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamDestroy}
393	*/
394	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamDestroy(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
395	bool fImmediate)
396	{
397	PDRVAUDIORECORDING pThis = RT_FROM_CPP_MEMBER(pInterface, DRVAUDIORECORDING, IHostAudio);
398	PAVRECSTREAM pStreamAV = (PAVRECSTREAM)pStream;
399	AssertPtrReturn(pStream, VERR_INVALID_POINTER);
400	RT_NOREF(fImmediate);
401
402	int vrc = VINF_SUCCESS;
403	if (pStreamAV->Cfg.enmDir == PDMAUDIODIR_OUT)
404	vrc = avRecDestroyStreamOut(pThis, pStreamAV);
405
406	return vrc;
407	}
408
409
410	/**
411	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamEnable}
412	*/
413	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamEnable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
414	{
415	RT_NOREF(pInterface, pStream);
416	return VINF_SUCCESS;
417	}
418
419
420	/**
421	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamDisable}
422	*/
423	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamDisable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
424	{
425	RT_NOREF(pInterface, pStream);
426	return VINF_SUCCESS;
427	}
428
429
430	/**
431	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamPause}
432	*/
433	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamPause(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
434	{
435	RT_NOREF(pInterface, pStream);
436	return VINF_SUCCESS;
437	}
438
439
440	/**
441	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamResume}
442	*/
443	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamResume(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
444	{
445	RT_NOREF(pInterface, pStream);
446	return VINF_SUCCESS;
447	}
448
449
450	/**
451	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamDrain}
452	*/
453	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamDrain(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
454	{
455	RT_NOREF(pInterface, pStream);
456	return VINF_SUCCESS;
457	}
458
459
460	/**
461	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetState}
462	*/
463	static DECLCALLBACK(PDMHOSTAUDIOSTREAMSTATE) drvAudioVideoRecHA_StreamGetState(PPDMIHOSTAUDIO pInterface,
464	PPDMAUDIOBACKENDSTREAM pStream)
465	{
466	RT_NOREF(pInterface);
467	AssertPtrReturn(pStream, PDMHOSTAUDIOSTREAMSTATE_INVALID);
468	return PDMHOSTAUDIOSTREAMSTATE_OKAY;
469	}
470
471
472	/**
473	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetWritable}
474	*/
475	static DECLCALLBACK(uint32_t) drvAudioVideoRecHA_StreamGetWritable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
476	{
477	RT_NOREF(pInterface);
478	PAVRECSTREAM pStreamAV = (PAVRECSTREAM)pStream;
479
480	RecordingStream *pRecStream = pStreamAV->pSink->pRecStream;
481	PRECORDINGCODEC pCodec = pRecStream->GetAudioCodec();
482
483	return pCodec->Parms.cbFrame;
484	}
485
486
487	/**
488	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamPlay}
489	*/
490	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamPlay(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
491	const void pvBuf, uint32_t cbBuf, uint32_t pcbWritten)
492	{
493	PDRVAUDIORECORDING pThis = RT_FROM_CPP_MEMBER(pInterface, DRVAUDIORECORDING, IHostAudio);
494	PAVRECSTREAM pStreamAV = (PAVRECSTREAM)pStream;
495	AssertPtrReturn(pStreamAV, VERR_INVALID_POINTER);
496	if (cbBuf)
497	AssertPtrReturn(pvBuf, VERR_INVALID_POINTER);
498	AssertReturn(pcbWritten, VERR_INVALID_PARAMETER);
499
500	int vrc = VINF_SUCCESS;
501
502	uint32_t cbWrittenTotal = 0;
503
504	PRTCIRCBUF pCircBuf = pStreamAV->pCircBuf;
505	AssertPtr(pCircBuf);
506	uint32_t const cbFree = (uint32_t)RTCircBufFree(pCircBuf);
507	uint32_t cbToWrite = RT_MIN(cbBuf, cbFree);
508	AssertReturn(cbToWrite, VERR_BUFFER_OVERFLOW);
509
510	/*
511	* Write as much as we can into our internal ring buffer.
512	*/
513	while (cbToWrite)
514	{
515	void *pvCircBuf = NULL;
516	size_t cbCircBuf = 0;
517	RTCircBufAcquireWriteBlock(pCircBuf, cbToWrite, &pvCircBuf, &cbCircBuf);
518
519	Log3Func(("cbToWrite=%RU32, cbCircBuf=%zu\n", cbToWrite, cbCircBuf));
520
521	memcpy(pvCircBuf, (uint8_t *)pvBuf + cbWrittenTotal, cbCircBuf),
522	cbWrittenTotal += (uint32_t)cbCircBuf;
523	Assert(cbWrittenTotal <= cbBuf);
524	Assert(cbToWrite >= cbCircBuf);
525	cbToWrite -= (uint32_t)cbCircBuf;
526
527	RTCircBufReleaseWriteBlock(pCircBuf, cbCircBuf);
528	}
529
530	RecordingStream *pRecStream = pStreamAV->pSink->pRecStream;
531	PRECORDINGCODEC pCodec = pRecStream->GetAudioCodec();
532
533	/*
534	* Process our internal ring buffer and send the obtained audio data to our encoding thread.
535	*/
536	cbToWrite = (uint32_t)RTCircBufUsed(pCircBuf);
537
538	/** @todo Can we encode more than a frame at a time? Optimize this! */
539	uint32_t const cbFrame = pCodec->Parms.cbFrame;
540
541	/* Only encode data if we have data for at least one full codec frame. */
542	while (cbToWrite >= cbFrame)
543	{
544	uint32_t cbSrc = 0;
545	do
546	{
547	void *pvCircBuf = NULL;
548	size_t cbCircBuf = 0;
549	RTCircBufAcquireReadBlock(pCircBuf, cbFrame - cbSrc, &pvCircBuf, &cbCircBuf);
550
551	Log3Func(("cbSrc=%RU32, cbCircBuf=%zu\n", cbSrc, cbCircBuf));
552
553	memcpy((uint8_t *)pStreamAV->pvSrcBuf + cbSrc, pvCircBuf, cbCircBuf);
554
555	cbSrc += (uint32_t)cbCircBuf;
556	Assert(cbSrc <= pStreamAV->cbSrcBuf);
557	Assert(cbSrc <= cbFrame);
558
559	RTCircBufReleaseReadBlock(pCircBuf, cbCircBuf);
560
561	if (cbSrc == cbFrame) /* Only send full codec frames. */
562	{
563	AssertPtr(pThis->pRecCtx);
564	vrc = pRecStream->SendAudioFrame(pStreamAV->pvSrcBuf, cbSrc, pThis->pRecCtx->GetCurrentPTS());
565	if (RT_FAILURE(vrc))
566	break;
567	}
568
569	} while (cbSrc < cbFrame);
570
571	Assert(cbToWrite >= cbFrame);
572	cbToWrite -= cbFrame;
573
574	if (RT_FAILURE(vrc))
575	break;
576
577	} /* while */
578
579	*pcbWritten = cbWrittenTotal;
580
581	LogFlowFunc(("cbBuf=%RU32, cbWrittenTotal=%RU32, vrc=%Rrc\n", cbBuf, cbWrittenTotal, vrc));
582	return VINF_SUCCESS; /* Don't propagate encoding errors to the caller. */
583	}
584
585
586	/**
587	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetReadable}
588	*/
589	static DECLCALLBACK(uint32_t) drvAudioVideoRecHA_StreamGetReadable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
590	{
591	RT_NOREF(pInterface, pStream);
592	return 0; /* Video capturing does not provide any input. */
593	}
594
595
596	/**
597	* @interface_method_impl{PDMIHOSTAUDIO,pfnStreamCapture}
598	*/
599	static DECLCALLBACK(int) drvAudioVideoRecHA_StreamCapture(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
600	void pvBuf, uint32_t cbBuf, uint32_t pcbRead)
601	{
602	RT_NOREF(pInterface, pStream, pvBuf, cbBuf);
603	*pcbRead = 0;
604	return VINF_SUCCESS;
605	}
606
607
608	/*********************************************************************************************************************************
609	* PDMIBASE *
610	*********************************************************************************************************************************/
611
612	/**
613	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
614	*/
615	static DECLCALLBACK(void ) drvAudioVideoRecQueryInterface(PPDMIBASE pInterface, const char pszIID)
616	{
617	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
618	PDRVAUDIORECORDING pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIORECORDING);
619
620	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
621	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIHOSTAUDIO, &pThis->IHostAudio);
622	return NULL;
623	}
624
625
626	/*********************************************************************************************************************************
627	* PDMDRVREG *
628	*********************************************************************************************************************************/
629
630	/**
631	* Shuts down (closes) a recording sink,
632	*
633	* @param pSink Recording sink to shut down.
634	*/
635	static void avRecSinkShutdown(PAVRECSINK pSink)
636	{
637	AssertPtrReturnVoid(pSink);
638
639	pSink->pRecStream = NULL;
640
641	switch (pSink->Con.Parms.enmType)
642	{
643	case AVRECCONTAINERTYPE_WEBM:
644	{
645	if (pSink->Con.WebM.pWebM)
646	{
647	LogRel2(("Recording: Finished recording audio to file '%s' (%zu bytes)\n",
648	pSink->Con.WebM.pWebM->GetFileName().c_str(), pSink->Con.WebM.pWebM->GetFileSize()));
649
650	int vrc2 = pSink->Con.WebM.pWebM->Close();
651	AssertRC(vrc2);
652
653	delete pSink->Con.WebM.pWebM;
654	pSink->Con.WebM.pWebM = NULL;
655	}
656	break;
657	}
658
659	case AVRECCONTAINERTYPE_MAIN_CONSOLE:
660	RT_FALL_THROUGH();
661	default:
662	break;
663	}
664	}
665
666
667	/**
668	* @interface_method_impl{PDMDRVREG,pfnPowerOff}
669	*/
670	/static/ DECLCALLBACK(void) AudioVideoRec::drvPowerOff(PPDMDRVINS pDrvIns)
671	{
672	PDRVAUDIORECORDING pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIORECORDING);
673	LogFlowFuncEnter();
674	avRecSinkShutdown(&pThis->Sink);
675	}
676
677
678	/**
679	* @interface_method_impl{PDMDRVREG,pfnDestruct}
680	*/
681	/static/ DECLCALLBACK(void) AudioVideoRec::drvDestruct(PPDMDRVINS pDrvIns)
682	{
683	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
684	PDRVAUDIORECORDING pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIORECORDING);
685
686	LogFlowFuncEnter();
687
688	switch (pThis->ContainerParms.enmType)
689	{
690	case AVRECCONTAINERTYPE_WEBM:
691	{
692	avRecSinkShutdown(&pThis->Sink);
693	RTStrFree(pThis->ContainerParms.WebM.pszFile);
694	break;
695	}
696
697	default:
698	break;
699	}
700
701	/*
702	* If the AudioVideoRec object is still alive, we must clear it's reference to
703	* us since we'll be invalid when we return from this method.
704	*/
705	if (pThis->pAudioVideoRec)
706	{
707	pThis->pAudioVideoRec->mpDrv = NULL;
708	pThis->pAudioVideoRec = NULL;
709	}
710
711	LogFlowFuncLeave();
712	}
713
714
715	/**
716	* Initializes a recording sink.
717	*
718	* @returns VBox status code.
719	* @param pThis Driver instance.
720	* @param pSink Sink to initialize.
721	* @param pConParms Container parameters to set.
722	* @param pStream Recording stream to asssign sink to.
723	*/
724	static int avRecSinkInit(PDRVAUDIORECORDING pThis, PAVRECSINK pSink, PAVRECCONTAINERPARMS pConParms, RecordingStream *pStream)
725	{
726	pSink->pRecStream = pStream;
727
728	int vrc = VINF_SUCCESS;
729
730	/*
731	* Container setup.
732	*/
733	try
734	{
735	switch (pConParms->enmType)
736	{
737	case AVRECCONTAINERTYPE_MAIN_CONSOLE:
738	{
739	if (pThis->pConsole)
740	{
741	pSink->Con.Main.pConsole = pThis->pConsole;
742	}
743	else
744	vrc = VERR_NOT_SUPPORTED;
745	break;
746	}
747
748	case AVRECCONTAINERTYPE_WEBM:
749	{
750	#if 0
751	/* If we only record audio, create our own WebM writer instance here. */
752	if (!pSink->Con.WebM.pWebM) /* Do we already have our WebM writer instance? */
753	{
754	/** @todo Add sink name / number to file name. */
755	const char *pszFile = pSink->Con.Parms.WebM.pszFile;
756	AssertPtr(pszFile);
757
758	pSink->Con.WebM.pWebM = new WebMWriter();
759	vrc = pSink->Con.WebM.pWebM->Open(pszFile,
760	/** @todo Add option to add some suffix if file exists instead of overwriting? */
761	RTFILE_O_CREATE_REPLACE \| RTFILE_O_WRITE \| RTFILE_O_DENY_NONE,
762	pSink->pCodec->Parms.enmAudioCodec, RecordingVideoCodec_None);
763	if (RT_SUCCESS(vrc))
764	{
765	const PPDMAUDIOPCMPROPS pPCMProps = &pCodec->Parms.Audio.PCMProps;
766
767	vrc = pSink->Con.WebM.pWebM->AddAudioTrack(pSink->pCodec,
768	PDMAudioPropsHz(pPCMProps), PDMAudioPropsChannels(pPCMProps),
769	PDMAudioPropsSampleBits(pPCMProps), &pSink->Con.WebM.uTrack);
770	if (RT_SUCCESS(vrc))
771	{
772	LogRel(("Recording: Recording audio to audio file '%s'\n", pszFile));
773	}
774	else
775	LogRel(("Recording: Error creating audio track for audio file '%s' (%Rrc)\n", pszFile, vrc));
776	}
777	else
778	LogRel(("Recording: Error creating audio file '%s' (%Rrc)\n", pszFile, vrc));
779	}
780	break;
781	#else
782	vrc = VERR_NOT_SUPPORTED;
783	break;
784	#endif
785	}
786
787	default:
788	vrc = VERR_NOT_SUPPORTED;
789	break;
790	}
791	}
792	catch (std::bad_alloc &)
793	{
794	vrc = VERR_NO_MEMORY;
795	}
796
797	if (RT_SUCCESS(vrc))
798	{
799	pSink->Con.Parms.enmType = pConParms->enmType;
800	pSink->tsStartMs = RTTimeMilliTS();
801
802	return VINF_SUCCESS;
803	}
804
805	LogRel(("Recording: Error creating sink (%Rrc)\n", vrc));
806	return vrc;
807	}
808
809
810	/**
811	* Construct a audio video recording driver instance.
812	*
813	* @copydoc FNPDMDRVCONSTRUCT
814	*/
815	/static/ DECLCALLBACK(int) AudioVideoRec::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
816	{
817	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
818	PDRVAUDIORECORDING pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIORECORDING);
819	RT_NOREF(fFlags);
820
821	LogRel(("Audio: Initializing video recording audio driver\n"));
822	LogFlowFunc(("fFlags=0x%x\n", fFlags));
823
824	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
825	("Configuration error: Not possible to attach anything to this driver!\n"),
826	VERR_PDM_DRVINS_NO_ATTACH);
827
828	/*
829	* Init the static parts.
830	*/
831	pThis->pDrvIns = pDrvIns;
832	/* IBase */
833	pDrvIns->IBase.pfnQueryInterface = drvAudioVideoRecQueryInterface;
834	/* IHostAudio */
835	pThis->IHostAudio.pfnGetConfig = drvAudioVideoRecHA_GetConfig;
836	pThis->IHostAudio.pfnGetDevices = NULL;
837	pThis->IHostAudio.pfnSetDevice = NULL;
838	pThis->IHostAudio.pfnGetStatus = drvAudioVideoRecHA_GetStatus;
839	pThis->IHostAudio.pfnDoOnWorkerThread = NULL;
840	pThis->IHostAudio.pfnStreamConfigHint = NULL;
841	pThis->IHostAudio.pfnStreamCreate = drvAudioVideoRecHA_StreamCreate;
842	pThis->IHostAudio.pfnStreamInitAsync = NULL;
843	pThis->IHostAudio.pfnStreamDestroy = drvAudioVideoRecHA_StreamDestroy;
844	pThis->IHostAudio.pfnStreamNotifyDeviceChanged = NULL;
845	pThis->IHostAudio.pfnStreamEnable = drvAudioVideoRecHA_StreamEnable;
846	pThis->IHostAudio.pfnStreamDisable = drvAudioVideoRecHA_StreamDisable;
847	pThis->IHostAudio.pfnStreamPause = drvAudioVideoRecHA_StreamPause;
848	pThis->IHostAudio.pfnStreamResume = drvAudioVideoRecHA_StreamResume;
849	pThis->IHostAudio.pfnStreamDrain = drvAudioVideoRecHA_StreamDrain;
850	pThis->IHostAudio.pfnStreamGetState = drvAudioVideoRecHA_StreamGetState;
851	pThis->IHostAudio.pfnStreamGetPending = NULL;
852	pThis->IHostAudio.pfnStreamGetWritable = drvAudioVideoRecHA_StreamGetWritable;
853	pThis->IHostAudio.pfnStreamPlay = drvAudioVideoRecHA_StreamPlay;
854	pThis->IHostAudio.pfnStreamGetReadable = drvAudioVideoRecHA_StreamGetReadable;
855	pThis->IHostAudio.pfnStreamCapture = drvAudioVideoRecHA_StreamCapture;
856
857	/*
858	* Read configuration.
859	*/
860	PCPDMDRVHLPR3 const pHlp = pDrvIns->pHlpR3;
861	/** @todo validate it. */
862
863	/*
864	* Get the Console object pointer.
865	*/
866	com::Guid ConsoleUuid(COM_IIDOF(IConsole));
867	IConsole pIConsole = (IConsole )PDMDrvHlpQueryGenericUserObject(pDrvIns, ConsoleUuid.raw());
868	AssertLogRelReturn(pIConsole, VERR_INTERNAL_ERROR_3);
869	Console pConsole = static_cast<Console >(pIConsole);
870	AssertLogRelReturn(pConsole, VERR_INTERNAL_ERROR_3);
871
872	pThis->pConsole = pConsole;
873	AssertReturn(!pThis->pConsole.isNull(), VERR_INVALID_POINTER);
874	pThis->pAudioVideoRec = pConsole->i_recordingGetAudioDrv();
875	AssertPtrReturn(pThis->pAudioVideoRec, VERR_INVALID_POINTER);
876
877	pThis->pAudioVideoRec->mpDrv = pThis;
878
879	/*
880	* Get the recording container parameters from the audio driver instance.
881	*/
882	RT_ZERO(pThis->ContainerParms);
883	PAVRECCONTAINERPARMS pConParams = &pThis->ContainerParms;
884
885	int vrc = pHlp->pfnCFGMQueryU32(pCfg, "StreamIndex", (uint32_t *)&pConParams->idxStream);
886	AssertRCReturn(vrc, vrc);
887
888	vrc = pHlp->pfnCFGMQueryU32(pCfg, "ContainerType", (uint32_t *)&pConParams->enmType);
889	AssertRCReturn(vrc, vrc);
890
891	switch (pConParams->enmType)
892	{
893	case AVRECCONTAINERTYPE_WEBM:
894	vrc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "ContainerFileName", &pConParams->WebM.pszFile);
895	AssertRCReturn(vrc, vrc);
896	break;
897
898	default:
899	break;
900	}
901
902	/*
903	* Obtain the recording context.
904	*/
905	pThis->pRecCtx = pConsole->i_recordingGetContext();
906	AssertPtrReturn(pThis->pRecCtx, VERR_INVALID_POINTER);
907
908	/*
909	* Get the codec configuration.
910	*/
911	RecordingStream *pStream = pThis->pRecCtx->GetStream(pConParams->idxStream);
912	AssertPtrReturn(pStream, VERR_INVALID_POINTER);
913
914	/*
915	* Init the recording sink.
916	*/
917	vrc = avRecSinkInit(pThis, &pThis->Sink, &pThis->ContainerParms, pStream);
918	if (RT_SUCCESS(vrc))
919	LogRel2(("Recording: Audio recording driver initialized\n"));
920	else
921	LogRel(("Recording: Audio recording driver initialization failed: %Rrc\n", vrc));
922
923	return vrc;
924	}
925
926
927	/**
928	* Video recording audio driver registration record.
929	*/
930	const PDMDRVREG AudioVideoRec::DrvReg =
931	{
932	PDM_DRVREG_VERSION,
933	/* szName */
934	"AudioVideoRec",
935	/* szRCMod */
936	"",
937	/* szR0Mod */
938	"",
939	/* pszDescription */
940	"Audio driver for video recording",
941	/* fFlags */
942	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
943	/* fClass. */
944	PDM_DRVREG_CLASS_AUDIO,
945	/* cMaxInstances */
946	~0U,
947	/* cbInstance */
948	sizeof(DRVAUDIORECORDING),
949	/* pfnConstruct */
950	AudioVideoRec::drvConstruct,
951	/* pfnDestruct */
952	AudioVideoRec::drvDestruct,
953	/* pfnRelocate */
954	NULL,
955	/* pfnIOCtl */
956	NULL,
957	/* pfnPowerOn */
958	NULL,
959	/* pfnReset */
960	NULL,
961	/* pfnSuspend */
962	NULL,
963	/* pfnResume */
964	NULL,
965	/* pfnAttach */
966	NULL,
967	/* pfnDetach */
968	NULL,
969	/* pfnPowerOff */
970	AudioVideoRec::drvPowerOff,
971	/* pfnSoftReset */
972	NULL,
973	/* u32EndVersion */
974	PDM_DRVREG_VERSION
975	};

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source: vbox/trunk/src/VBox/Main/src-client/DrvAudioRec.cpp@ 105006

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