| /* $Id$ */ |
| /* |
| * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) |
| * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| #include <pjmedia-audiodev/audiodev_imp.h> |
| #include <pjmedia/errno.h> |
| #include <pj/assert.h> |
| #include <pj/log.h> |
| #include <pj/os.h> |
| #include <pj/string.h> |
| #include <pj/unicode.h> |
| #ifdef _MSC_VER |
| # pragma warning(push, 3) |
| #endif |
| |
| #include <windows.h> |
| #include <mmsystem.h> |
| |
| #ifdef _MSC_VER |
| # pragma warning(pop) |
| #endif |
| |
| #if defined(PJ_WIN32_WINCE) && PJ_WIN32_WINCE!=0 |
| # pragma comment(lib, "Coredll.lib") |
| #elif defined(_MSC_VER) |
| # pragma comment(lib, "winmm.lib") |
| #endif |
| |
| |
| #define THIS_FILE "wmme_dev.c" |
| #define BITS_PER_SAMPLE 16 |
| #define BYTES_PER_SAMPLE (BITS_PER_SAMPLE/8) |
| |
| |
| /* WMME device info */ |
| struct wmme_dev_info |
| { |
| pjmedia_aud_dev_info info; |
| unsigned deviceId; |
| }; |
| |
| /* WMME factory */ |
| struct wmme_factory |
| { |
| pjmedia_aud_dev_factory base; |
| pj_pool_t *pool; |
| pj_pool_factory *pf; |
| |
| unsigned dev_count; |
| struct wmme_dev_info *dev_info; |
| }; |
| |
| |
| /* Individual WMME capture/playback stream descriptor */ |
| struct wmme_channel |
| { |
| union |
| { |
| HWAVEIN In; |
| HWAVEOUT Out; |
| } hWave; |
| |
| WAVEHDR *WaveHdr; |
| HANDLE hEvent; |
| DWORD dwBufIdx; |
| DWORD dwMaxBufIdx; |
| unsigned latency_ms; |
| pj_timestamp timestamp; |
| }; |
| |
| |
| /* Sound stream. */ |
| struct wmme_stream |
| { |
| pjmedia_aud_stream base; |
| pjmedia_dir dir; /**< Sound direction. */ |
| int play_id; /**< Playback dev id. */ |
| int rec_id; /**< Recording dev id. */ |
| pj_pool_t *pool; /**< Memory pool. */ |
| |
| pjmedia_aud_rec_cb rec_cb; /**< Capture callback. */ |
| pjmedia_aud_play_cb play_cb; /**< Playback callback. */ |
| void *user_data; /**< Application data. */ |
| |
| struct wmme_channel play_strm; /**< Playback stream. */ |
| struct wmme_channel rec_strm; /**< Capture stream. */ |
| |
| void *buffer; /**< Temp. frame buffer. */ |
| unsigned clock_rate; /**< Clock rate. */ |
| unsigned samples_per_frame; /**< Samples per frame. */ |
| unsigned bits_per_sample; /**< Bits per sample. */ |
| unsigned channel_count; /**< Channel count. */ |
| |
| pj_thread_t *thread; /**< Thread handle. */ |
| HANDLE thread_quit_event; /**< Quit signal to thread */ |
| }; |
| |
| |
| /* Prototypes */ |
| static pj_status_t factory_init(pjmedia_aud_dev_factory *f); |
| static pj_status_t factory_destroy(pjmedia_aud_dev_factory *f); |
| static unsigned factory_get_dev_count(pjmedia_aud_dev_factory *f); |
| static pj_status_t factory_get_dev_info(pjmedia_aud_dev_factory *f, |
| unsigned index, |
| pjmedia_aud_dev_info *info); |
| static pj_status_t factory_default_param(pjmedia_aud_dev_factory *f, |
| unsigned index, |
| pjmedia_aud_dev_param *param); |
| static pj_status_t factory_create_stream(pjmedia_aud_dev_factory *f, |
| const pjmedia_aud_dev_param *param, |
| pjmedia_aud_rec_cb rec_cb, |
| pjmedia_aud_play_cb play_cb, |
| void *user_data, |
| pjmedia_aud_stream **p_aud_strm); |
| |
| static pj_status_t stream_get_param(pjmedia_aud_stream *strm, |
| pjmedia_aud_dev_param *param); |
| static pj_status_t stream_get_cap(pjmedia_aud_stream *strm, |
| pjmedia_aud_dev_cap cap, |
| void *value); |
| static pj_status_t stream_set_cap(pjmedia_aud_stream *strm, |
| pjmedia_aud_dev_cap cap, |
| const void *value); |
| static pj_status_t stream_start(pjmedia_aud_stream *strm); |
| static pj_status_t stream_stop(pjmedia_aud_stream *strm); |
| static pj_status_t stream_destroy(pjmedia_aud_stream *strm); |
| |
| |
| /* Operations */ |
| static pjmedia_aud_dev_factory_op factory_op = |
| { |
| &factory_init, |
| &factory_destroy, |
| &factory_get_dev_count, |
| &factory_get_dev_info, |
| &factory_default_param, |
| &factory_create_stream |
| }; |
| |
| static pjmedia_aud_stream_op stream_op = |
| { |
| &stream_get_param, |
| &stream_get_cap, |
| &stream_set_cap, |
| &stream_start, |
| &stream_stop, |
| &stream_destroy |
| }; |
| |
| /* Utility: convert MMERROR to pj_status_t */ |
| PJ_INLINE(pj_status_t) CONVERT_MM_ERROR(MMRESULT mr) |
| { |
| return PJ_RETURN_OS_ERROR(mr); |
| } |
| |
| |
| /**************************************************************************** |
| * Factory operations |
| */ |
| /* |
| * Init WMME audio driver. |
| */ |
| pjmedia_aud_dev_factory* pjmedia_wmme_factory(pj_pool_factory *pf) |
| { |
| struct wmme_factory *f; |
| pj_pool_t *pool; |
| |
| pool = pj_pool_create(pf, "WMME", 1000, 1000, NULL); |
| f = PJ_POOL_ZALLOC_T(pool, struct wmme_factory); |
| f->pf = pf; |
| f->pool = pool; |
| f->base.op = &factory_op; |
| |
| return &f->base; |
| } |
| |
| |
| /* Internal: build device info from WAVEINCAPS/WAVEOUTCAPS */ |
| static void build_dev_info(UINT deviceId, struct wmme_dev_info *wdi, |
| WAVEINCAPS *wic, WAVEOUTCAPS *woc) |
| { |
| #define WIC_WOC(wic,woc,field) (wic? wic->field : woc->field) |
| |
| pj_bzero(wdi, sizeof(*wdi)); |
| wdi->deviceId = deviceId; |
| |
| /* Device Name */ |
| if (deviceId==WAVE_MAPPER) { |
| strncpy(wdi->info.name, "Wave mapper", sizeof(wdi->info.name)); |
| wdi->info.name[sizeof(wdi->info.name)-1] = '\0'; |
| } else { |
| pj_char_t *szPname = WIC_WOC(wic, woc, szPname); |
| PJ_DECL_ANSI_TEMP_BUF(wTmp, sizeof(wdi->info.name)); |
| |
| strncpy(wdi->info.name, |
| PJ_NATIVE_TO_STRING(szPname, wTmp, PJ_ARRAY_SIZE(wTmp)), |
| sizeof(wdi->info.name)); |
| wdi->info.name[sizeof(wdi->info.name)-1] = '\0'; |
| } |
| |
| wdi->info.default_samples_per_sec = 16000; |
| strcpy(wdi->info.driver, "WMME"); |
| |
| if (wic) { |
| wdi->info.input_count = wic->wChannels; |
| wdi->info.caps |= PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY; |
| |
| /* Sometimes a device can return a rediculously large number of |
| * channels. This happened with an SBLive card on a Windows ME box. |
| * It also happens on Win XP! |
| */ |
| if (wdi->info.input_count<1 || wdi->info.input_count>256) { |
| wdi->info.input_count = 2; |
| } |
| } |
| |
| if (woc) { |
| wdi->info.output_count = woc->wChannels; |
| wdi->info.caps |= PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY; |
| |
| if (woc->dwSupport & WAVECAPS_VOLUME) { |
| wdi->info.caps |= PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING; |
| } |
| |
| /* Sometimes a device can return a rediculously large number of |
| * channels. This happened with an SBLive card on a Windows ME box. |
| * It also happens on Win XP! |
| */ |
| if (wdi->info.output_count<1 || wdi->info.output_count>256) { |
| wdi->info.output_count = 2; |
| } |
| } |
| } |
| |
| /* API: init factory */ |
| static pj_status_t factory_init(pjmedia_aud_dev_factory *f) |
| { |
| struct wmme_factory *wf = (struct wmme_factory*)f; |
| unsigned c; |
| int i; |
| int inputDeviceCount, outputDeviceCount, devCount=0; |
| pj_bool_t waveMapperAdded = PJ_FALSE; |
| |
| /* Enumerate sound devices */ |
| wf->dev_count = 0; |
| |
| inputDeviceCount = waveInGetNumDevs(); |
| devCount += inputDeviceCount; |
| |
| outputDeviceCount = waveOutGetNumDevs(); |
| devCount += outputDeviceCount; |
| |
| if (devCount) { |
| /* Assume there is WAVE_MAPPER */ |
| devCount += 2; |
| } |
| |
| if (devCount==0) { |
| PJ_LOG(4,(THIS_FILE, "WMME found no sound devices")); |
| return PJMEDIA_EAUD_NODEV; |
| } |
| |
| wf->dev_info = (struct wmme_dev_info*) |
| pj_pool_calloc(wf->pool, devCount, |
| sizeof(struct wmme_dev_info)); |
| |
| if (devCount) { |
| /* Attempt to add WAVE_MAPPER as input and output device */ |
| WAVEINCAPS wic; |
| MMRESULT mr; |
| |
| pj_bzero(&wic, sizeof(WAVEINCAPS)); |
| mr = waveInGetDevCaps(WAVE_MAPPER, &wic, sizeof(WAVEINCAPS)); |
| |
| if (mr == MMSYSERR_NOERROR) { |
| WAVEOUTCAPS woc; |
| |
| pj_bzero(&woc, sizeof(WAVEOUTCAPS)); |
| mr = waveOutGetDevCaps(WAVE_MAPPER, &woc, sizeof(WAVEOUTCAPS)); |
| if (mr == MMSYSERR_NOERROR) { |
| build_dev_info(WAVE_MAPPER, &wf->dev_info[wf->dev_count], |
| &wic, &woc); |
| ++wf->dev_count; |
| waveMapperAdded = PJ_TRUE; |
| } |
| } |
| |
| } |
| |
| if (inputDeviceCount > 0) { |
| /* -1 is the WAVE_MAPPER */ |
| for (i = (waveMapperAdded? 0 : -1); i < inputDeviceCount; ++i) { |
| UINT uDeviceID = (UINT)((i==-1) ? WAVE_MAPPER : i); |
| WAVEINCAPS wic; |
| MMRESULT mr; |
| |
| pj_bzero(&wic, sizeof(WAVEINCAPS)); |
| |
| mr = waveInGetDevCaps(uDeviceID, &wic, sizeof(WAVEINCAPS)); |
| |
| if (mr == MMSYSERR_NOMEM) |
| return PJ_ENOMEM; |
| |
| if (mr != MMSYSERR_NOERROR) |
| continue; |
| |
| build_dev_info(uDeviceID, &wf->dev_info[wf->dev_count], |
| &wic, NULL); |
| ++wf->dev_count; |
| } |
| } |
| |
| if( outputDeviceCount > 0 ) |
| { |
| /* -1 is the WAVE_MAPPER */ |
| for (i = (waveMapperAdded? 0 : -1); i < outputDeviceCount; ++i) { |
| UINT uDeviceID = (UINT)((i==-1) ? WAVE_MAPPER : i); |
| WAVEOUTCAPS woc; |
| MMRESULT mr; |
| |
| pj_bzero(&woc, sizeof(WAVEOUTCAPS)); |
| |
| mr = waveOutGetDevCaps(uDeviceID, &woc, sizeof(WAVEOUTCAPS)); |
| |
| if (mr == MMSYSERR_NOMEM) |
| return PJ_ENOMEM; |
| |
| if (mr != MMSYSERR_NOERROR) |
| continue; |
| |
| build_dev_info(uDeviceID, &wf->dev_info[wf->dev_count], |
| NULL, &woc); |
| ++wf->dev_count; |
| } |
| } |
| |
| PJ_LOG(4, (THIS_FILE, "WMME initialized, found %d devices:", |
| wf->dev_count)); |
| for (c = 0; c < wf->dev_count; ++c) { |
| PJ_LOG(4, (THIS_FILE, " dev_id %d: %s (in=%d, out=%d)", |
| c, |
| wf->dev_info[c].info.name, |
| wf->dev_info[c].info.input_count, |
| wf->dev_info[c].info.output_count)); |
| } |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* API: destroy factory */ |
| static pj_status_t factory_destroy(pjmedia_aud_dev_factory *f) |
| { |
| struct wmme_factory *wf = (struct wmme_factory*)f; |
| pj_pool_t *pool = wf->pool; |
| |
| wf->pool = NULL; |
| pj_pool_release(pool); |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* API: get number of devices */ |
| static unsigned factory_get_dev_count(pjmedia_aud_dev_factory *f) |
| { |
| struct wmme_factory *wf = (struct wmme_factory*)f; |
| return wf->dev_count; |
| } |
| |
| /* API: get device info */ |
| static pj_status_t factory_get_dev_info(pjmedia_aud_dev_factory *f, |
| unsigned index, |
| pjmedia_aud_dev_info *info) |
| { |
| struct wmme_factory *wf = (struct wmme_factory*)f; |
| |
| PJ_ASSERT_RETURN(index < wf->dev_count, PJMEDIA_EAUD_INVDEV); |
| |
| pj_memcpy(info, &wf->dev_info[index].info, sizeof(*info)); |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* API: create default device parameter */ |
| static pj_status_t factory_default_param(pjmedia_aud_dev_factory *f, |
| unsigned index, |
| pjmedia_aud_dev_param *param) |
| { |
| struct wmme_factory *wf = (struct wmme_factory*)f; |
| struct wmme_dev_info *di = &wf->dev_info[index]; |
| |
| PJ_ASSERT_RETURN(index < wf->dev_count, PJMEDIA_EAUD_INVDEV); |
| |
| pj_bzero(param, sizeof(*param)); |
| if (di->info.input_count && di->info.output_count) { |
| param->dir = PJMEDIA_DIR_CAPTURE_PLAYBACK; |
| param->rec_id = index; |
| param->play_id = index; |
| } else if (di->info.input_count) { |
| param->dir = PJMEDIA_DIR_CAPTURE; |
| param->rec_id = index; |
| param->play_id = PJMEDIA_AUD_DEV_DEFAULT_ID; |
| } else if (di->info.output_count) { |
| param->dir = PJMEDIA_DIR_PLAYBACK; |
| param->play_id = index; |
| param->rec_id = PJMEDIA_AUD_DEV_DEFAULT_ID; |
| } else { |
| return PJMEDIA_EAUD_INVDEV; |
| } |
| |
| param->clock_rate = di->info.default_samples_per_sec; |
| param->channel_count = 1; |
| param->samples_per_frame = di->info.default_samples_per_sec * 20 / 1000; |
| param->bits_per_sample = 16; |
| param->flags = di->info.caps; |
| param->input_latency_ms = PJMEDIA_SND_DEFAULT_REC_LATENCY; |
| param->output_latency_ms = PJMEDIA_SND_DEFAULT_PLAY_LATENCY; |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* Internal: init WAVEFORMATEX */ |
| static void init_waveformatex (LPWAVEFORMATEX pcmwf, |
| unsigned clock_rate, |
| unsigned channel_count) |
| { |
| pj_bzero(pcmwf, sizeof(PCMWAVEFORMAT)); |
| pcmwf->wFormatTag = WAVE_FORMAT_PCM; |
| pcmwf->nChannels = (pj_uint16_t)channel_count; |
| pcmwf->nSamplesPerSec = clock_rate; |
| pcmwf->nBlockAlign = (pj_uint16_t)(channel_count * BYTES_PER_SAMPLE); |
| pcmwf->nAvgBytesPerSec = clock_rate * channel_count * BYTES_PER_SAMPLE; |
| pcmwf->wBitsPerSample = BITS_PER_SAMPLE; |
| } |
| |
| |
| /* Internal: create WMME player device. */ |
| static pj_status_t init_player_stream( struct wmme_factory *wf, |
| pj_pool_t *pool, |
| struct wmme_channel *wmme_strm, |
| unsigned dev_id, |
| unsigned clock_rate, |
| unsigned channel_count, |
| unsigned samples_per_frame, |
| unsigned buffer_count) |
| { |
| MMRESULT mr; |
| WAVEFORMATEX pcmwf; |
| unsigned bytes_per_frame; |
| unsigned i; |
| |
| PJ_ASSERT_RETURN(dev_id < wf->dev_count, PJ_EINVAL); |
| |
| /* |
| * Create a wait event. |
| */ |
| wmme_strm->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
| if (NULL == wmme_strm->hEvent) |
| return pj_get_os_error(); |
| |
| /* |
| * Set up wave format structure for opening the device. |
| */ |
| init_waveformatex(&pcmwf, clock_rate, channel_count); |
| bytes_per_frame = samples_per_frame * BYTES_PER_SAMPLE; |
| |
| /* |
| * Open wave device. |
| */ |
| mr = waveOutOpen(&wmme_strm->hWave.Out, wf->dev_info[dev_id].deviceId, |
| &pcmwf, (DWORD)wmme_strm->hEvent, 0, CALLBACK_EVENT); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| |
| /* Pause the wave out device */ |
| mr = waveOutPause(wmme_strm->hWave.Out); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| |
| /* |
| * Create the buffers. |
| */ |
| wmme_strm->WaveHdr = (WAVEHDR*) |
| pj_pool_zalloc(pool, sizeof(WAVEHDR) * buffer_count); |
| for (i = 0; i < buffer_count; ++i) { |
| wmme_strm->WaveHdr[i].lpData = pj_pool_zalloc(pool, bytes_per_frame); |
| wmme_strm->WaveHdr[i].dwBufferLength = bytes_per_frame; |
| mr = waveOutPrepareHeader(wmme_strm->hWave.Out, |
| &(wmme_strm->WaveHdr[i]), |
| sizeof(WAVEHDR)); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| mr = waveOutWrite(wmme_strm->hWave.Out, &(wmme_strm->WaveHdr[i]), |
| sizeof(WAVEHDR)); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| } |
| |
| wmme_strm->dwBufIdx = 0; |
| wmme_strm->dwMaxBufIdx = buffer_count; |
| wmme_strm->timestamp.u64 = 0; |
| |
| /* Done setting up play device. */ |
| PJ_LOG(5, (THIS_FILE, |
| " WaveAPI Sound player \"%s\" initialized (clock_rate=%d, " |
| "channel_count=%d, samples_per_frame=%d (%dms))", |
| wf->dev_info[dev_id].info.name, |
| clock_rate, channel_count, samples_per_frame, |
| samples_per_frame * 1000 / clock_rate)); |
| |
| return PJ_SUCCESS; |
| } |
| |
| |
| /* Internal: create Windows Multimedia recorder device */ |
| static pj_status_t init_capture_stream( struct wmme_factory *wf, |
| pj_pool_t *pool, |
| struct wmme_channel *wmme_strm, |
| unsigned dev_id, |
| unsigned clock_rate, |
| unsigned channel_count, |
| unsigned samples_per_frame, |
| unsigned buffer_count) |
| { |
| MMRESULT mr; |
| WAVEFORMATEX pcmwf; |
| unsigned bytes_per_frame; |
| unsigned i; |
| |
| PJ_ASSERT_RETURN(dev_id < wf->dev_count, PJ_EINVAL); |
| |
| /* |
| * Create a wait event. |
| */ |
| wmme_strm->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
| if (NULL == wmme_strm->hEvent) { |
| return pj_get_os_error(); |
| } |
| |
| /* |
| * Set up wave format structure for opening the device. |
| */ |
| init_waveformatex(&pcmwf, clock_rate, channel_count); |
| bytes_per_frame = samples_per_frame * BYTES_PER_SAMPLE; |
| |
| /* |
| * Open wave device. |
| */ |
| mr = waveInOpen(&wmme_strm->hWave.In, wf->dev_info[dev_id].deviceId, |
| &pcmwf, (DWORD)wmme_strm->hEvent, 0, CALLBACK_EVENT); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| |
| /* |
| * Create the buffers. |
| */ |
| wmme_strm->WaveHdr = (WAVEHDR*) |
| pj_pool_zalloc(pool, sizeof(WAVEHDR) * buffer_count); |
| for (i = 0; i < buffer_count; ++i) { |
| wmme_strm->WaveHdr[i].lpData = pj_pool_zalloc(pool, bytes_per_frame); |
| wmme_strm->WaveHdr[i].dwBufferLength = bytes_per_frame; |
| mr = waveInPrepareHeader(wmme_strm->hWave.In, |
| &(wmme_strm->WaveHdr[i]), |
| sizeof(WAVEHDR)); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| mr = waveInAddBuffer(wmme_strm->hWave.In, &(wmme_strm->WaveHdr[i]), |
| sizeof(WAVEHDR)); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| } |
| |
| wmme_strm->dwBufIdx = 0; |
| wmme_strm->dwMaxBufIdx = buffer_count; |
| wmme_strm->timestamp.u64 = 0; |
| |
| /* Done setting up play device. */ |
| PJ_LOG(5,(THIS_FILE, |
| " WaveAPI Sound recorder \"%s\" initialized (clock_rate=%d, " |
| "channel_count=%d, samples_per_frame=%d (%dms))", |
| wf->dev_info[dev_id].info.name, |
| clock_rate, channel_count, samples_per_frame, |
| samples_per_frame * 1000 / clock_rate)); |
| |
| return PJ_SUCCESS; |
| } |
| |
| |
| /* WMME capture and playback thread. */ |
| static int PJ_THREAD_FUNC wmme_dev_thread(void *arg) |
| { |
| struct wmme_stream *strm = (struct wmme_stream*)arg; |
| HANDLE events[3]; |
| unsigned eventCount; |
| unsigned bytes_per_frame; |
| pj_status_t status = PJ_SUCCESS; |
| |
| |
| eventCount = 0; |
| events[eventCount++] = strm->thread_quit_event; |
| if (strm->dir & PJMEDIA_DIR_PLAYBACK) |
| events[eventCount++] = strm->play_strm.hEvent; |
| if (strm->dir & PJMEDIA_DIR_CAPTURE) |
| events[eventCount++] = strm->rec_strm.hEvent; |
| |
| |
| /* Raise self priority. We don't want the audio to be distorted by |
| * system activity. |
| */ |
| #if defined(PJ_WIN32_WINCE) && PJ_WIN32_WINCE != 0 |
| if (strm->dir & PJMEDIA_DIR_PLAYBACK) |
| CeSetThreadPriority(GetCurrentThread(), 153); |
| else |
| CeSetThreadPriority(GetCurrentThread(), 247); |
| #else |
| SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL); |
| #endif |
| |
| /* Calculate bytes per frame */ |
| bytes_per_frame = strm->samples_per_frame * BYTES_PER_SAMPLE; |
| |
| /* |
| * Loop while not signalled to quit, wait for event objects to be |
| * signalled by WMME capture and play buffer. |
| */ |
| while (status == PJ_SUCCESS) |
| { |
| |
| DWORD rc; |
| pjmedia_dir signalled_dir; |
| |
| rc = WaitForMultipleObjects(eventCount, events, FALSE, INFINITE); |
| if (rc < WAIT_OBJECT_0 || rc >= WAIT_OBJECT_0 + eventCount) |
| continue; |
| |
| if (rc == WAIT_OBJECT_0) |
| break; |
| |
| if (rc == (WAIT_OBJECT_0 + 1)) |
| { |
| if (events[1] == strm->play_strm.hEvent) |
| signalled_dir = PJMEDIA_DIR_PLAYBACK; |
| else |
| signalled_dir = PJMEDIA_DIR_CAPTURE; |
| } |
| else |
| { |
| if (events[2] == strm->play_strm.hEvent) |
| signalled_dir = PJMEDIA_DIR_PLAYBACK; |
| else |
| signalled_dir = PJMEDIA_DIR_CAPTURE; |
| } |
| |
| |
| if (signalled_dir == PJMEDIA_DIR_PLAYBACK) |
| { |
| struct wmme_channel *wmme_strm = &strm->play_strm; |
| MMRESULT mr = MMSYSERR_NOERROR; |
| status = PJ_SUCCESS; |
| |
| /* |
| * Windows Multimedia has requested us to feed some frames to |
| * playback buffer. |
| */ |
| |
| while (wmme_strm->WaveHdr[wmme_strm->dwBufIdx].dwFlags & WHDR_DONE) |
| { |
| void *buffer = wmme_strm->WaveHdr[wmme_strm->dwBufIdx].lpData; |
| pjmedia_frame frame; |
| |
| //PJ_LOG(5,(THIS_FILE, "Finished writing buffer %d", |
| // wmme_strm->dwBufIdx)); |
| |
| frame.type = PJMEDIA_FRAME_TYPE_AUDIO; |
| frame.size = bytes_per_frame; |
| frame.buf = buffer; |
| frame.timestamp.u64 = wmme_strm->timestamp.u64; |
| frame.bit_info = 0; |
| |
| /* Get frame from application. */ |
| status = (*strm->play_cb)(strm->user_data, &frame); |
| |
| if (status != PJ_SUCCESS) |
| break; |
| |
| if (frame.type != PJMEDIA_FRAME_TYPE_AUDIO) { |
| pj_bzero(buffer, bytes_per_frame); |
| } |
| |
| /* Write to the device. */ |
| mr = waveOutWrite(wmme_strm->hWave.Out, |
| &(wmme_strm->WaveHdr[wmme_strm->dwBufIdx]), |
| sizeof(WAVEHDR)); |
| if (mr != MMSYSERR_NOERROR) |
| { |
| status = CONVERT_MM_ERROR(mr); |
| break; |
| } |
| |
| /* Increment position. */ |
| if (++wmme_strm->dwBufIdx >= wmme_strm->dwMaxBufIdx) |
| wmme_strm->dwBufIdx = 0; |
| wmme_strm->timestamp.u64 += strm->samples_per_frame / |
| strm->channel_count; |
| } |
| } |
| else |
| { |
| struct wmme_channel *wmme_strm = &strm->rec_strm; |
| MMRESULT mr = MMSYSERR_NOERROR; |
| status = PJ_SUCCESS; |
| |
| /* |
| * Windows Multimedia has indicated that it has some frames ready |
| * in the capture buffer. Get as much frames as possible to |
| * prevent overflows. |
| */ |
| #if 0 |
| { |
| static DWORD tc = 0; |
| DWORD now = GetTickCount(); |
| DWORD i = 0; |
| DWORD bits = 0; |
| |
| if (tc == 0) tc = now; |
| |
| for (i = 0; i < wmme_strm->dwMaxBufIdx; ++i) |
| { |
| bits = bits << 4; |
| bits |= wmme_strm->WaveHdr[i].dwFlags & WHDR_DONE; |
| } |
| PJ_LOG(5,(THIS_FILE, "Record Signal> Index: %d, Delta: %4.4d, " |
| "Flags: %6.6x\n", |
| wmme_strm->dwBufIdx, |
| now - tc, |
| bits)); |
| tc = now; |
| } |
| #endif |
| |
| while (wmme_strm->WaveHdr[wmme_strm->dwBufIdx].dwFlags & WHDR_DONE) |
| { |
| char* buffer = (char*) |
| wmme_strm->WaveHdr[wmme_strm->dwBufIdx].lpData; |
| unsigned cap_len = |
| wmme_strm->WaveHdr[wmme_strm->dwBufIdx].dwBytesRecorded; |
| pjmedia_frame frame; |
| |
| /* |
| PJ_LOG(5,(THIS_FILE, "Read %d bytes from buffer %d", cap_len, |
| wmme_strm->dwBufIdx)); |
| */ |
| |
| if (cap_len < bytes_per_frame) |
| pj_bzero(buffer + cap_len, bytes_per_frame - cap_len); |
| |
| /* Copy the audio data out of the wave buffer. */ |
| pj_memcpy(strm->buffer, buffer, bytes_per_frame); |
| |
| /* Re-add the buffer to the device. */ |
| mr = waveInAddBuffer(wmme_strm->hWave.In, |
| &(wmme_strm->WaveHdr[wmme_strm->dwBufIdx]), |
| sizeof(WAVEHDR)); |
| if (mr != MMSYSERR_NOERROR) { |
| status = CONVERT_MM_ERROR(mr); |
| break; |
| } |
| |
| /* Prepare frame */ |
| frame.type = PJMEDIA_FRAME_TYPE_AUDIO; |
| frame.buf = strm->buffer; |
| frame.size = bytes_per_frame; |
| frame.timestamp.u64 = wmme_strm->timestamp.u64; |
| frame.bit_info = 0; |
| |
| /* Call callback */ |
| status = (*strm->rec_cb)(strm->user_data, &frame); |
| if (status != PJ_SUCCESS) |
| break; |
| |
| /* Increment position. */ |
| if (++wmme_strm->dwBufIdx >= wmme_strm->dwMaxBufIdx) |
| wmme_strm->dwBufIdx = 0; |
| wmme_strm->timestamp.u64 += strm->samples_per_frame / |
| strm->channel_count; |
| } |
| } |
| } |
| |
| PJ_LOG(5,(THIS_FILE, "WMME: thread stopping..")); |
| return 0; |
| } |
| |
| |
| /* API: create stream */ |
| static pj_status_t factory_create_stream(pjmedia_aud_dev_factory *f, |
| const pjmedia_aud_dev_param *param, |
| pjmedia_aud_rec_cb rec_cb, |
| pjmedia_aud_play_cb play_cb, |
| void *user_data, |
| pjmedia_aud_stream **p_aud_strm) |
| { |
| struct wmme_factory *wf = (struct wmme_factory*)f; |
| pj_pool_t *pool; |
| struct wmme_stream *strm; |
| pj_status_t status; |
| |
| /* Can only support 16bits per sample */ |
| PJ_ASSERT_RETURN(param->bits_per_sample == BITS_PER_SAMPLE, PJ_EINVAL); |
| |
| /* Create and Initialize stream descriptor */ |
| pool = pj_pool_create(wf->pf, "wmme-dev", 1000, 1000, NULL); |
| PJ_ASSERT_RETURN(pool != NULL, PJ_ENOMEM); |
| |
| strm = PJ_POOL_ZALLOC_T(pool, struct wmme_stream); |
| strm->dir = param->dir; |
| strm->play_id = param->play_id; |
| strm->rec_id = param->rec_id; |
| strm->pool = pool; |
| strm->rec_cb = rec_cb; |
| strm->play_cb = play_cb; |
| strm->user_data = user_data; |
| strm->clock_rate = param->clock_rate; |
| strm->samples_per_frame = param->samples_per_frame; |
| strm->bits_per_sample = param->bits_per_sample; |
| strm->channel_count = param->channel_count; |
| strm->buffer = pj_pool_alloc(pool, |
| param->samples_per_frame * BYTES_PER_SAMPLE); |
| if (!strm->buffer) { |
| pj_pool_release(pool); |
| return PJ_ENOMEM; |
| } |
| |
| /* Create player stream */ |
| if (param->dir & PJMEDIA_DIR_PLAYBACK) { |
| unsigned buf_count; |
| |
| if (param->flags & PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY) |
| strm->play_strm.latency_ms = param->output_latency_ms; |
| else |
| strm->play_strm.latency_ms = PJMEDIA_SND_DEFAULT_PLAY_LATENCY; |
| |
| buf_count = strm->play_strm.latency_ms * param->clock_rate * |
| param->channel_count / param->samples_per_frame / 1000; |
| |
| status = init_player_stream(wf, strm->pool, |
| &strm->play_strm, |
| param->play_id, |
| param->clock_rate, |
| param->channel_count, |
| param->samples_per_frame, |
| buf_count); |
| |
| if (status != PJ_SUCCESS) { |
| stream_destroy(&strm->base); |
| return status; |
| } |
| } |
| |
| /* Create capture stream */ |
| if (param->dir & PJMEDIA_DIR_CAPTURE) { |
| unsigned buf_count; |
| |
| if (param->flags & PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY) |
| strm->rec_strm.latency_ms = param->input_latency_ms; |
| else |
| strm->rec_strm.latency_ms = PJMEDIA_SND_DEFAULT_REC_LATENCY; |
| |
| buf_count = strm->rec_strm.latency_ms * param->clock_rate * |
| param->channel_count / param->samples_per_frame / 1000; |
| |
| status = init_capture_stream(wf, strm->pool, |
| &strm->rec_strm, |
| param->rec_id, |
| param->clock_rate, |
| param->channel_count, |
| param->samples_per_frame, |
| buf_count); |
| |
| if (status != PJ_SUCCESS) { |
| stream_destroy(&strm->base); |
| return status; |
| } |
| } |
| |
| /* Create the stop event */ |
| strm->thread_quit_event = CreateEvent(NULL, FALSE, FALSE, NULL); |
| if (strm->thread_quit_event == NULL) { |
| status = pj_get_os_error(); |
| stream_destroy(&strm->base); |
| return status; |
| } |
| |
| /* Create and start the thread */ |
| status = pj_thread_create(pool, "wmme", &wmme_dev_thread, strm, 0, 0, |
| &strm->thread); |
| if (status != PJ_SUCCESS) { |
| stream_destroy(&strm->base); |
| return status; |
| } |
| |
| /* Done */ |
| strm->base.op = &stream_op; |
| *p_aud_strm = &strm->base; |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* API: Get stream info. */ |
| static pj_status_t stream_get_param(pjmedia_aud_stream *s, |
| pjmedia_aud_dev_param *pi) |
| { |
| struct wmme_stream *strm = (struct wmme_stream*)s; |
| |
| PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL); |
| |
| pj_bzero(pi, sizeof(*pi)); |
| pi->dir = strm->dir; |
| pi->play_id = strm->play_id; |
| pi->rec_id = strm->rec_id; |
| pi->clock_rate = strm->clock_rate; |
| pi->channel_count = strm->channel_count; |
| pi->samples_per_frame = strm->samples_per_frame; |
| pi->bits_per_sample = strm->bits_per_sample; |
| |
| if (pi->dir & PJMEDIA_DIR_CAPTURE) { |
| pi->flags |= PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY; |
| pi->input_latency_ms = strm->rec_strm.latency_ms; |
| } |
| |
| if (pi->dir & PJMEDIA_DIR_PLAYBACK) { |
| /* TODO: report the actual latency? */ |
| pi->flags |= PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY; |
| pi->output_latency_ms = strm->play_strm.latency_ms; |
| } |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* API: get capability */ |
| static pj_status_t stream_get_cap(pjmedia_aud_stream *s, |
| pjmedia_aud_dev_cap cap, |
| void *pval) |
| { |
| struct wmme_stream *strm = (struct wmme_stream*)s; |
| |
| PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); |
| |
| if (cap==PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY && |
| (strm->dir & PJMEDIA_DIR_CAPTURE)) |
| { |
| /* Recording latency */ |
| *(unsigned*)pval = strm->rec_strm.latency_ms; |
| return PJ_SUCCESS; |
| } else if (cap==PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY && |
| (strm->dir & PJMEDIA_DIR_PLAYBACK)) |
| { |
| /* Playback latency */ |
| *(unsigned*)pval = strm->play_strm.latency_ms; |
| return PJ_SUCCESS; |
| } else if (cap==PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING && |
| strm->play_strm.hWave.Out) |
| { |
| /* Output volume setting */ |
| DWORD dwVol; |
| MMRESULT mr; |
| |
| mr = waveOutGetVolume(strm->play_strm.hWave.Out, &dwVol); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| |
| dwVol &= 0xFFFF; |
| *(unsigned*)pval = (dwVol * 100) / 0xFFFF; |
| return PJ_SUCCESS; |
| } else { |
| return PJ_ENOTSUP; |
| } |
| } |
| |
| /* API: set capability */ |
| static pj_status_t stream_set_cap(pjmedia_aud_stream *s, |
| pjmedia_aud_dev_cap cap, |
| const void *pval) |
| { |
| struct wmme_stream *strm = (struct wmme_stream*)s; |
| |
| PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); |
| |
| if (cap==PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING && |
| strm->play_strm.hWave.Out) |
| { |
| /* Output volume setting */ |
| DWORD dwVol; |
| MMRESULT mr; |
| |
| dwVol = ((*(unsigned*)pval) * 0xFFFF) / 100; |
| dwVol |= (dwVol << 16); |
| |
| mr = waveOutSetVolume(strm->play_strm.hWave.Out, dwVol); |
| return (mr==MMSYSERR_NOERROR)? PJ_SUCCESS : CONVERT_MM_ERROR(mr); |
| } else { |
| return PJ_ENOTSUP; |
| } |
| |
| return PJ_ENOTSUP; |
| } |
| |
| /* API: Start stream. */ |
| static pj_status_t stream_start(pjmedia_aud_stream *strm) |
| { |
| struct wmme_stream *stream = (struct wmme_stream*)strm; |
| MMRESULT mr; |
| |
| if (stream->play_strm.hWave.Out != NULL) |
| { |
| mr = waveOutRestart(stream->play_strm.hWave.Out); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| PJ_LOG(5,(THIS_FILE, "WMME playback stream started")); |
| } |
| |
| if (stream->rec_strm.hWave.In != NULL) |
| { |
| mr = waveInStart(stream->rec_strm.hWave.In); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| PJ_LOG(5,(THIS_FILE, "WMME capture stream started")); |
| } |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* API: Stop stream. */ |
| static pj_status_t stream_stop(pjmedia_aud_stream *strm) |
| { |
| struct wmme_stream *stream = (struct wmme_stream*)strm; |
| MMRESULT mr; |
| |
| PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL); |
| |
| if (stream->play_strm.hWave.Out != NULL) |
| { |
| mr = waveOutPause(stream->play_strm.hWave.Out); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| PJ_LOG(5,(THIS_FILE, "Stopped WMME playback stream")); |
| } |
| |
| if (stream->rec_strm.hWave.In != NULL) |
| { |
| mr = waveInStop(stream->rec_strm.hWave.In); |
| if (mr != MMSYSERR_NOERROR) { |
| return CONVERT_MM_ERROR(mr); |
| } |
| PJ_LOG(5,(THIS_FILE, "Stopped WMME capture stream")); |
| } |
| |
| return PJ_SUCCESS; |
| } |
| |
| |
| /* API: Destroy stream. */ |
| static pj_status_t stream_destroy(pjmedia_aud_stream *strm) |
| { |
| struct wmme_stream *stream = (struct wmme_stream*)strm; |
| unsigned i; |
| |
| PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL); |
| |
| stream_stop(strm); |
| |
| if (stream->thread) |
| { |
| SetEvent(stream->thread_quit_event); |
| pj_thread_join(stream->thread); |
| pj_thread_destroy(stream->thread); |
| stream->thread = NULL; |
| } |
| |
| /* Unprepare the headers and close the play device */ |
| if (stream->play_strm.hWave.Out) |
| { |
| waveOutReset(stream->play_strm.hWave.Out); |
| for (i = 0; i < stream->play_strm.dwMaxBufIdx; ++i) |
| waveOutUnprepareHeader(stream->play_strm.hWave.Out, |
| &(stream->play_strm.WaveHdr[i]), |
| sizeof(WAVEHDR)); |
| waveOutClose(stream->play_strm.hWave.Out); |
| stream->play_strm.hWave.Out = NULL; |
| } |
| |
| /* Close the play event */ |
| if (stream->play_strm.hEvent) |
| { |
| CloseHandle(stream->play_strm.hEvent); |
| stream->play_strm.hEvent = NULL; |
| } |
| |
| /* Unprepare the headers and close the record device */ |
| if (stream->rec_strm.hWave.In) |
| { |
| waveInReset(stream->rec_strm.hWave.In); |
| for (i = 0; i < stream->play_strm.dwMaxBufIdx; ++i) |
| waveInUnprepareHeader(stream->rec_strm.hWave.In, |
| &(stream->rec_strm.WaveHdr[i]), |
| sizeof(WAVEHDR)); |
| waveInClose(stream->rec_strm.hWave.In); |
| stream->rec_strm.hWave.In = NULL; |
| } |
| |
| /* Close the record event */ |
| if (stream->rec_strm.hEvent) |
| { |
| CloseHandle(stream->rec_strm.hEvent); |
| stream->rec_strm.hEvent = NULL; |
| } |
| |
| pj_pool_release(stream->pool); |
| |
| return PJ_SUCCESS; |
| } |
| |