jack2 supports android devices & rebase current changes to master

1 files changed, 236 insertions, 0 deletions

diff --git a/android/JackOpenSLESDriver.cpp b/android/JackOpenSLESDriver.cpp
new file mode 100644
index 00000000..61a07da1
--- /dev/null
+++ b/android/JackOpenSLESDriver.cpp
@@ -0,0 +1,236 @@
+/*
+Copyright (C) 2001 Paul Davis
+Copyright (C) 2004-2008 Grame
+Copyright (C) 2013 Samsung Electronics
+
+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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "JackOpenSLESDriver.h"
+#include "JackDriverLoader.h"
+#include "JackThreadedDriver.h"
+#include "JackEngineControl.h"
+#include "JackGraphManager.h"
+#include "JackCompilerDeps.h"
+#include <iostream>
+#include <unistd.h>
+#include <fcntl.h>
+#include <math.h>
+
+#include <android/log.h>
+#include "opensl_io.h"
+
+#define JACK_OPENSLES_DEFAULT_SAMPLERATE   48000
+#define JACK_OPENSLES_DEFAULT_BUFFER_SIZE  1024
+
+namespace Jack
+{
+
+static OPENSL_STREAM  *pOpenSL_stream;
+
+int JackOpenSLESDriver::Open(jack_nframes_t buffer_size,
+                              jack_nframes_t samplerate,
+                              bool capturing,
+                              bool playing,
+                              int inchannels,
+                              int outchannels,
+                              bool monitor,
+                              const char* capture_driver_uid,
+                              const char* playback_driver_uid,
+                              jack_nframes_t capture_latency,
+                              jack_nframes_t playback_latency) {
+    jack_log("JackOpenSLESDriver::Open");
+
+    // Generic JackAudioDriver Open
+    if (JackAudioDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels, monitor,
+        capture_driver_uid, playback_driver_uid, capture_latency, playback_latency) != 0) {
+        return -1;
+    }
+    //JackAudioDriver::SetBufferSize(buffer_size);
+    //JackAudioDriver::SetSampleRate(samplerate);
+
+    if (capturing) {
+        inbuffer = (float *) malloc(sizeof(float) * buffer_size);  //mono input
+        memset(inbuffer, 0, sizeof(float) * buffer_size);
+    }
+    if (playing) {
+        outbuffer = (float *) malloc(sizeof(float) * buffer_size * 2);  //stereo output
+        memset(outbuffer, 0, sizeof(float) * buffer_size * 2);
+    }
+    pOpenSL_stream = android_OpenAudioDevice(samplerate, capturing ? 1 : 0, playing ? 2 : 0, buffer_size);
+    if (pOpenSL_stream == NULL)  return -1;
+
+    return 0;
+}
+
+int JackOpenSLESDriver::Close() {
+    jack_log("JackOpenSLESDriver::Close");
+
+    // Generic audio driver close
+    int res = JackAudioDriver::Close();
+
+    android_CloseAudioDevice(pOpenSL_stream);
+
+    if (inbuffer) {
+        free(inbuffer);
+        inbuffer = NULL;
+    }
+    if (outbuffer) {
+        free(outbuffer);
+        outbuffer = NULL;
+    }
+    return res;
+}
+
+int JackOpenSLESDriver::Read() {
+    //jack_log("JackOpenSLESDriver::Read");
+    jack_default_audio_sample_t* inputBuffer_1 = GetInputBuffer(0);
+    jack_default_audio_sample_t* inputBuffer_2 = GetInputBuffer(1);
+
+    if (inbuffer) {
+        int samps = android_AudioIn(pOpenSL_stream,inbuffer,fEngineControl->fBufferSize);
+        //jack_log("JackOpenSLESDriver::Read(%d)", samps);  //for debug
+        for (int i = 0; i < samps; i++) {
+            *(inputBuffer_1 + i) = *(inbuffer + i);
+            *(inputBuffer_2 + i) = *(inbuffer + i);
+        }
+    } else {
+        for (int i = 0; i < fCaptureChannels; i++) {
+            memset(GetInputBuffer(i), 0, sizeof(jack_default_audio_sample_t) * fEngineControl->fBufferSize);  //silence
+        }
+    }
+
+    return 0;
+}
+
+int JackOpenSLESDriver::Write() {
+    //jack_log("JackOpenSLESDriver::Write");
+    jack_default_audio_sample_t* outputBuffer_1 = GetOutputBuffer(0);
+    jack_default_audio_sample_t* outputBuffer_2 = GetOutputBuffer(1);
+
+    if (outbuffer) {
+        android_AudioOut(pOpenSL_stream, outbuffer, fEngineControl->fBufferSize * 2);  //stereo output
+        for (unsigned int i = 0, j = 0; i < fEngineControl->fBufferSize; i++) {
+            *(outbuffer + j) = *(outputBuffer_1 + i);  j++;
+            *(outbuffer + j) = *(outputBuffer_2 + i);  j++;
+        }
+    }
+
+    return 0;
+}
+
+int JackOpenSLESDriver::SetBufferSize(jack_nframes_t buffer_size) {
+    jack_log("JackOpenSLESDriver::SetBufferSize");
+    JackAudioDriver::SetBufferSize(buffer_size);
+    return 0;
+}
+
+} // end of namespace
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    SERVER_EXPORT jack_driver_desc_t * driver_get_descriptor () {
+        jack_driver_desc_t * desc;
+        jack_driver_desc_filler_t filler;
+        jack_driver_param_value_t value;
+
+        desc = jack_driver_descriptor_construct("opensles", JackDriverMaster, "Timer based backend", &filler);
+
+        value.ui = 2U;
+        jack_driver_descriptor_add_parameter(desc, &filler, "capture", 'C', JackDriverParamUInt, &value, NULL, "Number of capture ports", NULL);
+        jack_driver_descriptor_add_parameter(desc, &filler, "playback", 'P', JackDriverParamUInt, &value, NULL, "Number of playback ports", NULL);
+
+        value.ui = 48000U;
+        jack_driver_descriptor_add_parameter(desc, &filler, "rate", 'r', JackDriverParamUInt, &value, NULL, "Sample rate", NULL);
+
+        value.i = 0;
+        jack_driver_descriptor_add_parameter(desc, &filler, "monitor", 'm', JackDriverParamBool, &value, NULL, "Provide monitor ports for the output", NULL);
+
+        value.ui = JACK_OPENSLES_DEFAULT_BUFFER_SIZE;
+        jack_driver_descriptor_add_parameter(desc, &filler, "period", 'p', JackDriverParamUInt, &value, NULL, "Frames per period", NULL);
+
+        value.ui = 21333U;
+        jack_driver_descriptor_add_parameter(desc, &filler, "wait", 'w', JackDriverParamUInt, &value, NULL, "Number of usecs to wait between engine processes", NULL);
+
+        return desc;
+    }
+
+    SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLockedEngine* engine, Jack::JackSynchro* table, const JSList* params) {
+        jack_nframes_t sample_rate = JACK_OPENSLES_DEFAULT_SAMPLERATE;
+        jack_nframes_t buffer_size = JACK_OPENSLES_DEFAULT_BUFFER_SIZE;
+        unsigned int capture_ports = 2;
+        unsigned int playback_ports = 2;
+        int wait_time = 0;
+        const JSList * node;
+        const jack_driver_param_t * param;
+        bool monitor = false;
+
+        for (node = params; node; node = jack_slist_next (node)) {
+            param = (const jack_driver_param_t *) node->data;
+
+            switch (param->character) {
+
+                case 'C':
+                    capture_ports = param->value.ui;
+                    break;
+
+                case 'P':
+                    playback_ports = param->value.ui;
+                    break;
+
+                case 'r':
+                    sample_rate = param->value.ui;
+                    break;
+
+                case 'p':
+                    buffer_size = param->value.ui;
+                    break;
+
+                case 'w':
+                    wait_time = param->value.ui;
+                    break;
+
+                case 'm':
+                    monitor = param->value.i;
+                    break;
+            }
+        }
+
+        if (wait_time > 0) {
+            buffer_size = lroundf((wait_time * sample_rate) / 1000000.0f);
+            if (buffer_size > BUFFER_SIZE_MAX) {
+                buffer_size = BUFFER_SIZE_MAX;
+                jack_error("Buffer size set to %d", BUFFER_SIZE_MAX);
+            }
+        }
+
+        Jack::JackDriverClientInterface* driver = new Jack::JackThreadedDriver(new Jack::JackOpenSLESDriver("system", "opensles_pcm", engine, table));
+        if (driver->Open(buffer_size, sample_rate, capture_ports? 1 : 0, playback_ports? 1 : 0, capture_ports, playback_ports, monitor, "opensles", "opensles", 0, 0) == 0) {
+            return driver;
+        } else {
+            delete driver;
+            return NULL;
+        }
+    }
+
+#ifdef __cplusplus
+}
+#endif
+