From 8552e8fa8b541e1d6bc2228365ac7b5f54633e7d Mon Sep 17 00:00:00 2001 From: David Schleef Date: Thu, 20 May 2004 19:45:13 +0000 Subject: sys/osxaudio/Makefile.am: New OS X audio plugin by Zaheer Merali Original commit message from CVS: * sys/osxaudio/Makefile.am: New OS X audio plugin by Zaheer Merali * sys/osxaudio/gstosxaudio.c: * sys/osxaudio/gstosxaudioelement.c: * sys/osxaudio/gstosxaudioelement.h: * sys/osxaudio/gstosxaudiosink.c: * sys/osxaudio/gstosxaudiosink.h: * sys/osxaudio/gstosxaudiosrc.c: * sys/osxaudio/gstosxaudiosrc.h: --- sys/osxaudio/Makefile.am | 17 ++ sys/osxaudio/gstosxaudio.c | 58 +++++ sys/osxaudio/gstosxaudioelement.c | 450 ++++++++++++++++++++++++++++++++++++++ sys/osxaudio/gstosxaudioelement.h | 91 ++++++++ sys/osxaudio/gstosxaudiosink.c | 230 +++++++++++++++++++ sys/osxaudio/gstosxaudiosink.h | 82 +++++++ sys/osxaudio/gstosxaudiosrc.c | 216 ++++++++++++++++++ sys/osxaudio/gstosxaudiosrc.h | 75 +++++++ 8 files changed, 1219 insertions(+) create mode 100644 sys/osxaudio/Makefile.am create mode 100644 sys/osxaudio/gstosxaudio.c create mode 100644 sys/osxaudio/gstosxaudioelement.c create mode 100644 sys/osxaudio/gstosxaudioelement.h create mode 100644 sys/osxaudio/gstosxaudiosink.c create mode 100644 sys/osxaudio/gstosxaudiosink.h create mode 100644 sys/osxaudio/gstosxaudiosrc.c create mode 100644 sys/osxaudio/gstosxaudiosrc.h (limited to 'sys/osxaudio') diff --git a/sys/osxaudio/Makefile.am b/sys/osxaudio/Makefile.am new file mode 100644 index 00000000..7d6bcfa7 --- /dev/null +++ b/sys/osxaudio/Makefile.am @@ -0,0 +1,17 @@ +plugin_LTLIBRARIES = libgstosxaudio.la + +libgstosxaudio_la_SOURCES = gstosxaudio.c \ + gstosxaudioelement.c \ + gstosxaudiosink.c \ + gstosxaudiosrc.c + +libgstosxaudio_la_CFLAGS = $(GST_CFLAGS) +libgstosxaudio_la_LIBADD = $(top_builddir)/gst-libs/gst/libgstinterfaces-@GST_MAJORMINOR@.la +libgstosxaudio_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -framework CoreAudio + +noinst_HEADERS = gstosxaudiosink.h \ + gstosxaudioelement.h \ + gstosxaudiosrc.h + + + diff --git a/sys/osxaudio/gstosxaudio.c b/sys/osxaudio/gstosxaudio.c new file mode 100644 index 00000000..d3b6dd04 --- /dev/null +++ b/sys/osxaudio/gstosxaudio.c @@ -0,0 +1,58 @@ +/* GStreamer + * Copyright (C) <1999> Erik Walthinsen + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + + +#include "gstosxaudioelement.h" +#include "gstosxaudiosink.h" +#include "gstosxaudiosrc.h" +extern gchar *__gst_osxaudio_plugin_dir; + +GST_DEBUG_CATEGORY (osxaudio_debug); + +static gboolean +plugin_init (GstPlugin * plugin) +{ + if (!gst_library_load ("gstaudio")) + return FALSE; + + + if (!gst_element_register (plugin, "osxaudiosink", GST_RANK_PRIMARY, + GST_TYPE_OSXAUDIOSINK)) { + return FALSE; + } + if (!gst_element_register (plugin, "osxaudiosrc", GST_RANK_PRIMARY, + GST_TYPE_OSXAUDIOSRC)) { + return FALSE; + } + + GST_DEBUG_CATEGORY_INIT (osxaudio_debug, "osx", 0, "OSX audio elements"); + + + return TRUE; +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "osxaudio", + "OSX (Mac OS X) audio support for GStreamer", + plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN) diff --git a/sys/osxaudio/gstosxaudioelement.c b/sys/osxaudio/gstosxaudioelement.c new file mode 100644 index 00000000..5a25eb0f --- /dev/null +++ b/sys/osxaudio/gstosxaudioelement.c @@ -0,0 +1,450 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen + * 2000 Wim Taymans + * + * gstosxaudioelement.c: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include + +#include +#include +#include + +#include "gstosxaudioelement.h" + +enum +{ + ARG_0, + ARG_DEVICE, +}; + +/* elementfactory information */ +static GstElementDetails gst_osxaudioelement_details = +GST_ELEMENT_DETAILS ("Audio Mixer (OSX)", + "Generic/Audio", + "Mac OS X audio mixer element", + "Zaheer Abbas Merali "); + +static void gst_osxaudioelement_base_init (GstOsxAudioElementClass * klass); +static void gst_osxaudioelement_class_init (GstOsxAudioElementClass * klass); + +static void gst_osxaudioelement_init (GstOsxAudioElement * osxaudio); +static void gst_osxaudioelement_dispose (GObject * object); + +static void gst_osxaudioelement_set_property (GObject * object, + guint prop_id, const GValue * value, GParamSpec * pspec); +static void gst_osxaudioelement_get_property (GObject * object, + guint prop_id, GValue * value, GParamSpec * pspec); +static GstElementStateReturn gst_osxaudioelement_change_state (GstElement * + element); + +static GstElementClass *parent_class = NULL; + + +GType +gst_osxaudioelement_get_type (void) +{ + static GType osxaudioelement_type = 0; + + if (!osxaudioelement_type) { + static const GTypeInfo osxaudioelement_info = { + sizeof (GstOsxAudioElementClass), + (GBaseInitFunc) gst_osxaudioelement_base_init, + NULL, + (GClassInitFunc) gst_osxaudioelement_class_init, + NULL, + NULL, + sizeof (GstOsxAudioElement), + 0, + (GInstanceInitFunc) gst_osxaudioelement_init + }; + + osxaudioelement_type = g_type_register_static (GST_TYPE_ELEMENT, + "GstOsxAudioElement", &osxaudioelement_info, 0); + } + + return osxaudioelement_type; +} + +static void +gst_osxaudioelement_base_init (GstOsxAudioElementClass * klass) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (klass); + + klass->device_combinations = NULL; + + gst_element_class_set_details (element_class, &gst_osxaudioelement_details); +} + +static void +gst_osxaudioelement_class_init (GstOsxAudioElementClass * klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; + + parent_class = g_type_class_ref (GST_TYPE_ELEMENT); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE, + g_param_spec_int ("device", "Device index", + "Mac OS X CoreAudio Device Index (0 usually)", 0, G_MAXINT, 0, + G_PARAM_READWRITE)); + gobject_class->set_property = gst_osxaudioelement_set_property; + gobject_class->get_property = gst_osxaudioelement_get_property; + gobject_class->dispose = gst_osxaudioelement_dispose; + + gstelement_class->change_state = gst_osxaudioelement_change_state; +} + +static void +gst_osxaudioelement_init (GstOsxAudioElement * osxaudio) +{ + OSStatus status; + UInt32 propertySize; + + pthread_mutex_init (&osxaudio->buffer_mutex, NULL); + pthread_mutex_unlock (&osxaudio->buffer_mutex); + propertySize = sizeof (osxaudio->device_id); + status = + AudioHardwareGetProperty (kAudioHardwarePropertyDefaultOutputDevice, + &propertySize, &(osxaudio->device_id)); + + if (status) { + GST_DEBUG ("AudioHardwareGetProperty returned %d\n", (int) status); + } + if (osxaudio->device_id == kAudioDeviceUnknown) { + GST_DEBUG ("AudioHardwareGetProperty: device_id is kAudioDeviceUnknown\n"); + } + /* get requested buffer length */ + propertySize = sizeof (osxaudio->buffer_len); + status = + AudioDeviceGetProperty (osxaudio->device_id, 0, false, + kAudioDevicePropertyBufferSize, &propertySize, &osxaudio->buffer_len); + if (status) { + GST_DEBUG + ("AudioDeviceGetProperty returned %d when getting kAudioDevicePropertyBufferSize\n", + (int) status); + } + GST_DEBUG ("%5d osxaudio->buffer_len\n", (int) osxaudio->buffer_len); + +} + +static void +gst_osxaudioelement_dispose (GObject * object) +{ + GstOsxAudioElement *osxaudio = (GstOsxAudioElement *) object; + + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +/* General purpose Ring-buffering routines */ +int +write_buffer (GstOsxAudioElement * osxaudio, unsigned char *data, int len) +{ + int len2 = 0; + int x; + + while (len > 0) { + if (osxaudio->full_buffers == NUM_BUFS) { + GST_DEBUG ("Buffer overrun\n"); + break; + } + + x = osxaudio->buffer_len - osxaudio->buf_write_pos; + if (x > len) + x = len; + memcpy (osxaudio->buffer[osxaudio->buf_write] + osxaudio->buf_write_pos, + data + len2, x); + + /* accessing common variables, locking mutex */ + pthread_mutex_lock (&osxaudio->buffer_mutex); + len2 += x; + len -= x; + osxaudio->buffered_bytes += x; + osxaudio->buf_write_pos += x; + if (osxaudio->buf_write_pos >= osxaudio->buffer_len) { + /* block is full, find next! */ + osxaudio->buf_write = (osxaudio->buf_write + 1) % NUM_BUFS; + ++osxaudio->full_buffers; + osxaudio->buf_write_pos = 0; + } + pthread_mutex_unlock (&osxaudio->buffer_mutex); + } + + return len2; +} + +int +read_buffer (GstOsxAudioElement * osxaudio, unsigned char *data) +{ + int len2 = 0; + int len = osxaudio->buffer_len; + int x; + + while (len > 0) { + if (osxaudio->full_buffers == 0) { + GST_DEBUG ("Buffer underrun\n"); + break; + } + + x = osxaudio->buffer_len - osxaudio->buf_read_pos; + if (x > len) + x = len; + memcpy (data + len2, + osxaudio->buffer[osxaudio->buf_read] + osxaudio->buf_read_pos, x); + len2 += x; + len -= x; + + /* accessing common variables, locking mutex */ + pthread_mutex_lock (&osxaudio->buffer_mutex); + osxaudio->buffered_bytes -= x; + osxaudio->buf_read_pos += x; + if (osxaudio->buf_read_pos >= osxaudio->buffer_len) { + /* block is empty, find next! */ + osxaudio->buf_read = (osxaudio->buf_read + 1) % NUM_BUFS; + --osxaudio->full_buffers; + osxaudio->buf_read_pos = 0; + } + pthread_mutex_unlock (&osxaudio->buffer_mutex); + } + + + return len2; +} + +/* The function that the CoreAudio thread calls when it has data */ +OSStatus +inputAudioDeviceIOProc (AudioDeviceID inDevice, const AudioTimeStamp * inNow, + const AudioBufferList * inInputData, const AudioTimeStamp * inInputTime, + AudioBufferList * outOutputData, const AudioTimeStamp * inOutputTime, + void *inClientData) +{ + GstOsxAudioElement *osxaudio = GST_OSXAUDIOELEMENT (inClientData); + + write_buffer (GST_OSXAUDIOELEMENT (osxaudio), + (char *) inInputData->mBuffers[0].mData, osxaudio->buffer_len); + + return 0; +} + +/* The function that the CoreAudio thread calls when it wants more data */ + +OSStatus +outputAudioDeviceIOProc (AudioDeviceID inDevice, const AudioTimeStamp * inNow, + const AudioBufferList * inInputData, const AudioTimeStamp * inInputTime, + AudioBufferList * outOutputData, const AudioTimeStamp * inOutputTime, + void *inClientData) +{ + GstOsxAudioElement *osxaudio = GST_OSXAUDIOELEMENT (inClientData); + + outOutputData->mBuffers[0].mDataByteSize = + read_buffer (osxaudio, (char *) outOutputData->mBuffers[0].mData); + + return 0; +} + +static gboolean +gst_osxaudioelement_open_audio (GstOsxAudioElement * osxaudio, gboolean input) +{ + gint caps; + int i; + OSErr status; + + GST_INFO ("osxaudioelement: attempting to open sound device"); + + /* Allocate ring-buffer memory */ + for (i = 0; i < NUM_BUFS; i++) + osxaudio->buffer[i] = (unsigned char *) malloc (osxaudio->buffer_len); + if (input) { + status = + AudioDeviceAddIOProc (osxaudio->device_id, inputAudioDeviceIOProc, + osxaudio); + } else { + /* Set the IO proc that CoreAudio will call when it needs data */ + status = + AudioDeviceAddIOProc (osxaudio->device_id, outputAudioDeviceIOProc, + osxaudio); + } + if (status) { + GST_DEBUG ("AudioDeviceAddIOProc returned %d\n", (int) status); + return FALSE; + } + + pthread_mutex_lock (&osxaudio->buffer_mutex); + + /* reset ring-buffer state */ + osxaudio->buf_read = 0; + osxaudio->buf_write = 0; + osxaudio->buf_read_pos = 0; + osxaudio->buf_write_pos = 0; + + osxaudio->full_buffers = 0; + osxaudio->buffered_bytes = 0; + + /* zero buffer */ + for (i = 0; i < NUM_BUFS; i++) + bzero (osxaudio->buffer[i], osxaudio->buffer_len); + + pthread_mutex_unlock (&osxaudio->buffer_mutex); + + return TRUE; +} + +static void +gst_osxaudioelement_close_audio (GstOsxAudioElement * osxaudio, gboolean input) +{ + OSErr status; + int i; + + /* stop callback */ + if (input) { + status = AudioDeviceStop (osxaudio->device_id, inputAudioDeviceIOProc); + } else { + status = AudioDeviceStop (osxaudio->device_id, outputAudioDeviceIOProc); + } + if (status) + GST_DEBUG ("AudioDeviceStop returned %d\n", (int) status); + + if (input) { + status = + AudioDeviceRemoveIOProc (osxaudio->device_id, inputAudioDeviceIOProc); + } else { + status = + AudioDeviceRemoveIOProc (osxaudio->device_id, outputAudioDeviceIOProc); + } + if (status) + GST_DEBUG ("AudioDeviceRemoveIOProc " "returned %d\n", (int) status); + + for (i = 0; i < NUM_BUFS; i++) + free (osxaudio->buffer[i]); + +} + +static void +gst_osxaudioelement_set_property (GObject * object, + guint prop_id, const GValue * value, GParamSpec * pspec) +{ + GstOsxAudioElement *osxaudio = GST_OSXAUDIOELEMENT (object); + OSStatus status; + int nDevices; + UInt32 propertySize; + int deviceid; + AudioDeviceID *devids; + + switch (prop_id) { + case ARG_DEVICE: + /* check index given is in bounds, if not use default device */ + status = AudioHardwareGetPropertyInfo (kAudioHardwarePropertyDevices, + &propertySize, NULL); + nDevices = propertySize / sizeof (AudioDeviceID); + deviceid = g_value_get_int (value); + if (deviceid < nDevices) { + devids = malloc (propertySize); + status = + AudioHardwareGetProperty (kAudioHardwarePropertyDevices, + &propertySize, devids); + osxaudio->device_id = devids[deviceid]; + free (devids); + } else { + GST_DEBUG ("device index %d out of range. Max index is currently %d\n", + deviceid, nDevices); + } + break; + default: + break; + } +} + +static void +gst_osxaudioelement_get_property (GObject * object, + guint prop_id, GValue * value, GParamSpec * pspec) +{ + GstOsxAudioElement *osxaudio = GST_OSXAUDIOELEMENT (object); + OSStatus status; + int nDevices; + UInt32 propertySize; + int deviceid; + AudioDeviceID *devids; + int i; + + switch (prop_id) { + case ARG_DEVICE: + /* figure out what index the current one is */ + status = AudioHardwareGetPropertyInfo (kAudioHardwarePropertyDevices, + &propertySize, NULL); + nDevices = propertySize / sizeof (AudioDeviceID); + devids = malloc (propertySize); + status = + AudioHardwareGetProperty (kAudioHardwarePropertyDevices, + &propertySize, devids); + for (i = 0; i < nDevices; i++) { + if (osxaudio->device_id == devids[i]) + break; + } + g_value_set_int (value, i); + free (devids); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static GstElementStateReturn +gst_osxaudioelement_change_state (GstElement * element) +{ + GstOsxAudioElement *osxaudio = GST_OSXAUDIOELEMENT (element); + const GList *padlist; + gboolean input = TRUE; + + padlist = gst_element_get_pad_list (element); + if (padlist != NULL) { + GstPad *firstpad = padlist->data; + + if (GST_PAD_IS_SINK (firstpad)) { + input = FALSE; + } + } + switch (GST_STATE_TRANSITION (element)) { + case GST_STATE_NULL_TO_READY: + if (!gst_osxaudioelement_open_audio (osxaudio, input)) { + return GST_STATE_FAILURE; + } + GST_INFO ("osxaudioelement: opened sound device"); + break; + case GST_STATE_READY_TO_NULL: + gst_osxaudioelement_close_audio (osxaudio, input); + GST_INFO ("osxaudioelement: closed sound device"); + break; + default: + break; + } + + if (GST_ELEMENT_CLASS (parent_class)->change_state) + return GST_ELEMENT_CLASS (parent_class)->change_state (element); + + return GST_STATE_SUCCESS; +} diff --git a/sys/osxaudio/gstosxaudioelement.h b/sys/osxaudio/gstosxaudioelement.h new file mode 100644 index 00000000..d11f7975 --- /dev/null +++ b/sys/osxaudio/gstosxaudioelement.h @@ -0,0 +1,91 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen + * 2000 Wim Taymans + * + * gstosxaudioelement.h: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_OSXAUDIO_ELEMENT_H__ +#define __GST_OSXAUDIO_ELEMENT_H__ + +#include +#include +#include + +/* debugging category */ +GST_DEBUG_CATEGORY_EXTERN (osxaudio_debug); +#define GST_CAT_DEFAULT osxaudio_debug + +G_BEGIN_DECLS + +OSStatus outputAudioDeviceIOProc(AudioDeviceID inDevice, const AudioTimeStamp *inNow, const AudioBufferList *inInputData, const AudioTimeStamp *inInputTime, AudioBufferList *outOutputData, const AudioTimeStamp *inOutputTime, void *inClientData); + +OSStatus inputAudioDeviceIOProc(AudioDeviceID inDevice, const AudioTimeStamp *inNow, const AudioBufferList *inInputData, const AudioTimeStamp *inInputTime, AudioBufferList *outOutputData, const AudioTimeStamp *inOutputTime, void *inClientData); + +#define GST_TYPE_OSXAUDIOELEMENT \ + (gst_osxaudioelement_get_type()) +#define GST_OSXAUDIOELEMENT(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSXAUDIOELEMENT,GstOsxAudioElement)) +#define GST_OSXAUDIOELEMENT_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSXAUDIOELEMENT,GstOsxAudioElementClass)) +#define GST_IS_OSXAUDIOELEMENT(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSXAUDIOELEMENT)) +#define GST_IS_OSXAUDIOELEMENT_CLASS(obj) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSXAUDIOELEMENT)) +#define GST_OSXAUDIOELEMENT_GET_CLASS(obj) \ + (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_OSXAUDIOELEMENT, GstOsxAudioElementClass)) + +typedef struct _GstOsxAudioElement GstOsxAudioElement; +typedef struct _GstOsxAudioElementClass GstOsxAudioElementClass; + +/* This is large, but best (maybe it should be even larger). + * CoreAudio supposedly has an internal latency in the order of 2ms */ +#define NUM_BUFS 128 + +struct _GstOsxAudioElement +{ + /* yes, we're a gstelement too */ + GstElement parent; + + pthread_mutex_t buffer_mutex; /* mutex covering buffer variables */ + AudioDeviceID device_id; + + unsigned char *buffer[NUM_BUFS]; + unsigned int buffer_len; + + unsigned int buf_read; + unsigned int buf_write; + unsigned int buf_read_pos; + unsigned int buf_write_pos; + int full_buffers; + int buffered_bytes; + +}; + +struct _GstOsxAudioElementClass { + GstElementClass klass; + + GList *device_combinations; +}; + +GType gst_osxaudioelement_get_type (void); +int read_buffer(GstOsxAudioElement* osxaudio, unsigned char* data); +int write_buffer(GstOsxAudioElement* osxaudio, unsigned char* data, int len); +G_END_DECLS + +#endif /* __GST_OSXAUDIO_ELEMENT_H__ */ diff --git a/sys/osxaudio/gstosxaudiosink.c b/sys/osxaudio/gstosxaudiosink.c new file mode 100644 index 00000000..75d7ee2b --- /dev/null +++ b/sys/osxaudio/gstosxaudiosink.c @@ -0,0 +1,230 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen + * 2000 Wim Taymans + * + * gstosxaudiosink.c: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif +#include +#include +#include +#include + +#include "gstosxaudiosink.h" + +/* elementfactory information */ +static GstElementDetails gst_osxaudiosink_details = +GST_ELEMENT_DETAILS ("Audio Sink (Mac OS X)", + "Sink/Audio", + "Output to a Mac OS X CoreAudio Sound Device", + "Zaheer Abbas Merali "); + +static void gst_osxaudiosink_base_init (gpointer g_class); +static void gst_osxaudiosink_class_init (GstOsxAudioSinkClass * klass); +static void gst_osxaudiosink_init (GstOsxAudioSink * osxaudiosink); +static void gst_osxaudiosink_dispose (GObject * object); + +static GstElementStateReturn gst_osxaudiosink_change_state (GstElement * + element); + +static void gst_osxaudiosink_chain (GstPad * pad, GstData * _data); + +/* OssSink signals and args */ +enum +{ + SIGNAL_HANDOFF, + LAST_SIGNAL +}; + +static GstStaticPadTemplate osxaudiosink_sink_factory = +GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("audio/x-raw-float, " + "endianness = (int) BYTE_ORDER, " + "signed = (boolean) TRUE, " + "width = (int) 32, " "rate = (int) 44100, " "channels = (int) 2") + ); + +static GstElementClass *parent_class = NULL; +static guint gst_osssink_signals[LAST_SIGNAL] = { 0 }; + +GType +gst_osxaudiosink_get_type (void) +{ + static GType osxaudiosink_type = 0; + + if (!osxaudiosink_type) { + static const GTypeInfo osxaudiosink_info = { + sizeof (GstOsxAudioSinkClass), + gst_osxaudiosink_base_init, + NULL, + (GClassInitFunc) gst_osxaudiosink_class_init, + NULL, + NULL, + sizeof (GstOsxAudioSink), + 0, + (GInstanceInitFunc) gst_osxaudiosink_init, + }; + + osxaudiosink_type = + g_type_register_static (GST_TYPE_OSXAUDIOELEMENT, "GstOsxAudioSink", + &osxaudiosink_info, 0); + } + + return osxaudiosink_type; +} + +static void +gst_osxaudiosink_dispose (GObject * object) +{ + GstOsxAudioSink *osxaudiosink = (GstOsxAudioSink *) object; + + /*gst_object_unparent (GST_OBJECT (osxaudiosink->provided_clock)); */ + + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static void +gst_osxaudiosink_base_init (gpointer g_class) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); + + gst_element_class_set_details (element_class, &gst_osxaudiosink_details); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&osxaudiosink_sink_factory)); +} +static void +gst_osxaudiosink_class_init (GstOsxAudioSinkClass * klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; + + parent_class = g_type_class_ref (GST_TYPE_OSXAUDIOELEMENT); + + gst_osssink_signals[SIGNAL_HANDOFF] = + g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GstOsxAudioSinkClass, handoff), NULL, NULL, + g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); + + gobject_class->dispose = gst_osxaudiosink_dispose; + + gstelement_class->change_state = + GST_DEBUG_FUNCPTR (gst_osxaudiosink_change_state); +} + +static void +gst_osxaudiosink_init (GstOsxAudioSink * osxaudiosink) +{ + osxaudiosink->sinkpad = + gst_pad_new_from_template (gst_static_pad_template_get + (&osxaudiosink_sink_factory), "sink"); + gst_element_add_pad (GST_ELEMENT (osxaudiosink), osxaudiosink->sinkpad); + + gst_pad_set_chain_function (osxaudiosink->sinkpad, gst_osxaudiosink_chain); + + GST_DEBUG ("initializing osxaudiosink"); + + GST_FLAG_SET (osxaudiosink, GST_ELEMENT_THREAD_SUGGESTED); + GST_FLAG_SET (osxaudiosink, GST_ELEMENT_EVENT_AWARE); +} + +static void +gst_osxaudiosink_chain (GstPad * pad, GstData * _data) +{ + GstBuffer *buf = GST_BUFFER (_data); + GstOsxAudioSink *osxaudiosink; + guchar *data; + guint to_write; + gint amount_written; + gint delay; + + /* this has to be an audio buffer */ + osxaudiosink = GST_OSXAUDIOSINK (gst_pad_get_parent (pad)); + + if (GST_IS_EVENT (buf)) { + GstEvent *event = GST_EVENT (buf); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_EOS: + gst_pad_event_default (pad, event); + return; + case GST_EVENT_DISCONTINUOUS: + /* pass-through */ + default: + gst_pad_event_default (pad, event); + return; + } + g_assert_not_reached (); + } + + data = GST_BUFFER_DATA (buf); + to_write = GST_BUFFER_SIZE (buf); + amount_written = 0; + + while (amount_written < to_write) { + data += amount_written; + to_write -= amount_written; + amount_written = + write_buffer (GST_OSXAUDIOELEMENT (osxaudiosink), data, to_write); + } + gst_buffer_unref (buf); +} + +static GstElementStateReturn +gst_osxaudiosink_change_state (GstElement * element) +{ + GstOsxAudioSink *osxaudiosink; + OSErr status; + + osxaudiosink = GST_OSXAUDIOSINK (element); + + switch (GST_STATE_TRANSITION (element)) { + case GST_STATE_READY_TO_PAUSED: + break; + case GST_STATE_PAUSED_TO_PLAYING: + status = + AudioDeviceStart (GST_OSXAUDIOELEMENT (osxaudiosink)->device_id, + outputAudioDeviceIOProc); + if (status) + GST_DEBUG ("AudioDeviceStart returned %d\n", (int) status); + break; + case GST_STATE_PLAYING_TO_PAUSED: + status = + AudioDeviceStop (GST_OSXAUDIOELEMENT (osxaudiosink)->device_id, + outputAudioDeviceIOProc); + if (status) + GST_DEBUG ("AudioDeviceStop returned %d\n", (int) status); + break; + case GST_STATE_PAUSED_TO_READY: + break; + default: + break; + } + + if (GST_ELEMENT_CLASS (parent_class)->change_state) + return GST_ELEMENT_CLASS (parent_class)->change_state (element); + + return GST_STATE_SUCCESS; +} diff --git a/sys/osxaudio/gstosxaudiosink.h b/sys/osxaudio/gstosxaudiosink.h new file mode 100644 index 00000000..8cffa2be --- /dev/null +++ b/sys/osxaudio/gstosxaudiosink.h @@ -0,0 +1,82 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen + * 2000 Wim Taymans + * + * gstosxaudiosink.h: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + + +#ifndef __GST_OSXAUDIOSINK_H__ +#define __GST_OSXAUDIOSINK_H__ + + +#include + +#include "gstosxaudioelement.h" +#include + +G_BEGIN_DECLS + +#define GST_TYPE_OSXAUDIOSINK \ + (gst_osxaudiosink_get_type()) +#define GST_OSXAUDIOSINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSXAUDIOSINK,GstOsxAudioSink)) +#define GST_OSXAUDIOSINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSXAUDIOSINK,GstOsxAudioSinkClass)) +#define GST_IS_OSXAUDIOSINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSXAUDIOSINK)) +#define GST_IS_OSXAUDIOSINK_CLASS(obj) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSXAUDIOSINK)) + +typedef enum { + GST_OSXAUDIOSINK_OPEN = GST_ELEMENT_FLAG_LAST, + + GST_OSXAUDIOSINK_FLAG_LAST = GST_ELEMENT_FLAG_LAST+2, +} GstOsxAudioSinkFlags; + +typedef struct _GstOsxAudioSink GstOsxAudioSink; +typedef struct _GstOsxAudioSinkClass GstOsxAudioSinkClass; + +struct _GstOsxAudioSink { + GstOsxAudioElement element; + + GstPad *sinkpad; + +/* GstClock *provided_clock; + GstClock *clock; + gboolean resync; + gboolean sync; + guint64 handled; + + gboolean mute; + guint bufsize; + guint chunk_size;*/ +}; + +struct _GstOsxAudioSinkClass { + GstOsxAudioElementClass parent_class; + + /* signals */ + void (*handoff) (GstElement *element,GstPad *pad); +}; + +GType gst_osxaudiosink_get_type(void); + +G_END_DECLS + +#endif /* __GST_OSXAUDIOSINK_H__ */ diff --git a/sys/osxaudio/gstosxaudiosrc.c b/sys/osxaudio/gstosxaudiosrc.c new file mode 100644 index 00000000..41a2a36f --- /dev/null +++ b/sys/osxaudio/gstosxaudiosrc.c @@ -0,0 +1,216 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen + * 2000 Wim Taymans + * + * gstosxaudiosrc.c: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif +#include +#include +#include +#include + +#include + +#include +#include + +/* elementfactory information */ +static GstElementDetails gst_osxaudiosrc_details = +GST_ELEMENT_DETAILS ("Audio Source (Mac OS X)", + "Source/Audio", + "Read from the sound card", + "Zaheer Abbas Merali "); + + +/* Osxaudiosrc signals and args */ +enum +{ + /* FILL ME */ + LAST_SIGNAL +}; + +static GstStaticPadTemplate osxaudiosrc_src_factory = +GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("audio/x-raw-float, " + "endianness = (int) BYTE_ORDER, " + "signed = (boolean) TRUE , " + "width = (int) 32, " "rate = (int) 44100, " "channels = (int) 2") + ); + +static void gst_osxaudiosrc_base_init (gpointer g_class); +static void gst_osxaudiosrc_class_init (GstOsxAudioSrcClass * klass); +static void gst_osxaudiosrc_init (GstOsxAudioSrc * osxaudiosrc); +static void gst_osxaudiosrc_dispose (GObject * object); + +static GstElementStateReturn gst_osxaudiosrc_change_state (GstElement * + element); + +static GstData *gst_osxaudiosrc_get (GstPad * pad); + +static GstElementClass *parent_class = NULL; + +/*static guint gst_osxaudiosrc_signals[LAST_SIGNAL] = { 0 }; */ + +GType +gst_osxaudiosrc_get_type (void) +{ + static GType osxaudiosrc_type = 0; + + if (!osxaudiosrc_type) { + static const GTypeInfo osxaudiosrc_info = { + sizeof (GstOsxAudioSrcClass), + gst_osxaudiosrc_base_init, + NULL, + (GClassInitFunc) gst_osxaudiosrc_class_init, + NULL, + NULL, + sizeof (GstOsxAudioSrc), + 0, + (GInstanceInitFunc) gst_osxaudiosrc_init, + }; + + osxaudiosrc_type = + g_type_register_static (GST_TYPE_OSXAUDIOELEMENT, "GstOsxAudioSrc", + &osxaudiosrc_info, 0); + } + return osxaudiosrc_type; +} + +static void +gst_osxaudiosrc_base_init (gpointer g_class) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); + + gst_element_class_set_details (element_class, &gst_osxaudiosrc_details); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&osxaudiosrc_src_factory)); +} +static void +gst_osxaudiosrc_class_init (GstOsxAudioSrcClass * klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; + + parent_class = g_type_class_ref (GST_TYPE_OSXAUDIOELEMENT); + + gobject_class->dispose = gst_osxaudiosrc_dispose; + + gstelement_class->change_state = gst_osxaudiosrc_change_state; + +} + +static void +gst_osxaudiosrc_init (GstOsxAudioSrc * osxaudiosrc) +{ + osxaudiosrc->srcpad = + gst_pad_new_from_template (gst_static_pad_template_get + (&osxaudiosrc_src_factory), "src"); + gst_pad_set_get_function (osxaudiosrc->srcpad, gst_osxaudiosrc_get); + + gst_element_add_pad (GST_ELEMENT (osxaudiosrc), osxaudiosrc->srcpad); + +} + +static void +gst_osxaudiosrc_dispose (GObject * object) +{ + GstOsxAudioSrc *osxaudiosrc = (GstOsxAudioSrc *) object; + + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static GstData * +gst_osxaudiosrc_get (GstPad * pad) +{ + GstOsxAudioSrc *src; + GstBuffer *buf; + glong readbytes; + + src = GST_OSXAUDIOSRC (gst_pad_get_parent (pad)); + + buf = gst_buffer_new_and_alloc ((GST_OSXAUDIOELEMENT (src))->buffer_len); + + readbytes = read_buffer (src, (char *) GST_BUFFER_DATA (buf)); + + if (readbytes < 0) { + gst_buffer_unref (buf); + GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM); + return GST_DATA (gst_event_new (GST_EVENT_INTERRUPT)); + } + + if (readbytes == 0) { + gst_buffer_unref (buf); + return GST_DATA (gst_event_new (GST_EVENT_INTERRUPT)); + } + + GST_BUFFER_SIZE (buf) = readbytes; + GST_BUFFER_OFFSET (buf) = src->curoffset; + + src->curoffset += readbytes; + + GST_DEBUG ("pushed buffer from soundcard of %ld bytes", readbytes); + + return GST_DATA (buf); +} + +static GstElementStateReturn +gst_osxaudiosrc_change_state (GstElement * element) +{ + GstOsxAudioSrc *osxaudiosrc = GST_OSXAUDIOSRC (element); + OSErr status; + + GST_DEBUG ("osxaudiosrc: state change"); + + switch (GST_STATE_TRANSITION (element)) { + case GST_STATE_READY_TO_PAUSED: + osxaudiosrc->curoffset = 0; + break; + case GST_STATE_PAUSED_TO_PLAYING: + status = + AudioDeviceStart (GST_OSXAUDIOELEMENT (osxaudiosrc)->device_id, + inputAudioDeviceIOProc); + if (status) + GST_DEBUG ("AudioDeviceStart returned %d\n", (int) status); + break; + case GST_STATE_PLAYING_TO_PAUSED: + status = + AudioDeviceStop (GST_OSXAUDIOELEMENT (osxaudiosrc)->device_id, + inputAudioDeviceIOProc); + if (status) + GST_DEBUG ("AudioDeviceStop returned %d\n", (int) status); + break; + case GST_STATE_PAUSED_TO_READY: + break; + default: + break; + } + + if (GST_ELEMENT_CLASS (parent_class)->change_state) + return GST_ELEMENT_CLASS (parent_class)->change_state (element); + + return GST_STATE_SUCCESS; +} diff --git a/sys/osxaudio/gstosxaudiosrc.h b/sys/osxaudio/gstosxaudiosrc.h new file mode 100644 index 00000000..bef9decf --- /dev/null +++ b/sys/osxaudio/gstosxaudiosrc.h @@ -0,0 +1,75 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen + * 2000 Wim Taymans + * + * gstosxaudiosrc.h: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + + +#ifndef __GST_OSXAUDIOSRC_H__ +#define __GST_OSXAUDIOSRC_H__ + + +#include +#include "gstosxaudioelement.h" + +G_BEGIN_DECLS + +#define GST_TYPE_OSXAUDIOSRC \ + (gst_osxaudiosrc_get_type()) +#define GST_OSXAUDIOSRC(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSXAUDIOSRC,GstOsxAudioSrc)) +#define GST_OSXAUDIOSRC_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSXAUDIOSRC,GstOsxAudioSrcClass)) +#define GST_IS_OSXAUDIOSRC(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSXAUDIOSRC)) +#define GST_IS_OSXAUDIOSRC_CLASS(obj) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSXAUDIOSRC)) + +typedef enum { + GST_OSXAUDIOSRC_OPEN = GST_ELEMENT_FLAG_LAST, + + GST_OSXAUDIOSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST+2, +} GstOsxAudioSrcFlags; + +typedef struct _GstOsxAudioSrc GstOsxAudioSrc; +typedef struct _GstOsxAudioSrcClass GstOsxAudioSrcClass; + +struct _GstOsxAudioSrc { + GstOsxAudioElement element; + + /* pads */ + GstPad *srcpad; + + gboolean need_eos; /* Do we need to emit an EOS? */ + + /* blocking */ + gulong curoffset; + gulong buffersize; + +}; + +struct _GstOsxAudioSrcClass { + GstOsxAudioElementClass parent_class; +}; + +GType gst_osxaudiosrc_get_type(void); + +G_END_DECLS + +#endif /* __GST_OSXAUDIOSRC_H__ */ -- cgit