mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 18:51:11 +00:00
8552e8fa8b
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:
91 lines
3.3 KiB
C
91 lines
3.3 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wim.taymans@chello.be>
|
|
*
|
|
* 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 <gst/gst.h>
|
|
#include <CoreAudio/CoreAudio.h>
|
|
#include <pthread.h>
|
|
|
|
/* 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__ */
|