/* GStreamer * Copyright (C) 2005 Sebastien Moutte <sebastien@moutte.net> * * gstwaveformsink.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_WAVEFORMSINK_H__ #define __GST_WAVEFORMSINK_H__ #include <gst/gst.h> #include <gst/audio/gstaudiosink.h> #include <windows.h> #include <mmsystem.h> #define WAVE_FORMAT_96M08 0x00001000 /* 96 kHz, Mono, 8-bit */ #define WAVE_FORMAT_96S08 0x00002000 /* 96 kHz, Stereo, 8-bit */ #define WAVE_FORMAT_96M16 0x00004000 /* 96 kHz, Mono, 16-bit */ #define WAVE_FORMAT_96S16 0x00008000 /* 96 kHz, Stereo, 16-bit */ #define ERROR_LENGTH MAXERRORLENGTH+50 #define BUFFER_COUNT 20 #define BUFFER_SIZE 8192 G_BEGIN_DECLS #define GST_TYPE_WAVEFORM_SINK (gst_waveform_sink_get_type()) #define GST_WAVEFORM_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVEFORM_SINK,GstWaveFormSink)) #define GST_WAVEFORM_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVEFORM_SINK,GstWaveFormSinkClass)) #define GST_IS_WAVEFORM_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVEFORM_SINK)) #define GST_IS_WAVEFORM_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVEFORM_SINK)) typedef struct _GstWaveFormSink GstWaveFormSink; typedef struct _GstWaveFormSinkClass GstWaveFormSinkClass; struct _GstWaveFormSink { /* parent object */ GstAudioSink sink; /* supported caps */ GstCaps *cached_caps; /* handle to the waveform-audio output device */ HWAVEOUT hwaveout; /* table of buffer headers */ WAVEHDR *wave_buffers; /* critical section protecting access to the number of free buffers */ CRITICAL_SECTION critic_wave; /* number of free buffers available */ guint free_buffers_count; /* current free buffer where you have to write incoming data */ guint write_buffer; /* size of buffers streamed to the device */ guint buffer_size; /* number of buffers streamed to the device */ guint buffer_count; /* total of bytes in queue before they are written to the device */ guint bytes_in_queue; /* bytes per sample from setcaps used to evaluate the number samples returned by delay */ guint bytes_per_sample; /* wave form error string */ gchar error_string[ERROR_LENGTH]; }; struct _GstWaveFormSinkClass { GstAudioSinkClass parent_class; }; GType gst_waveform_sink_get_type (void); G_END_DECLS #endif /* __GST_WAVEFORMSINK_H__ */