author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 12 Mar 2010 15:43:48 +0200 | |
branch | RCL_3 |
changeset 5 | aaf49be10b8c |
parent 0 | 0e761a78d257 |
child 8 | 4a7fac7dd34a |
permissions | -rw-r--r-- |
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/* GStreamer |
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> |
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* 2005 Wim Taymans <wim@fluendo.com> |
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* |
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* gstbaseaudiosrc.h: |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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/* a base class for audio sources. |
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*/ |
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#ifndef __GST_BASE_AUDIO_SRC_H__ |
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#define __GST_BASE_AUDIO_SRC_H__ |
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#include <gst/gst.h> |
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#include <gst/base/gstpushsrc.h> |
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#include "gstringbuffer.h" |
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#include "gstaudioclock.h" |
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G_BEGIN_DECLS |
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#define GST_TYPE_BASE_AUDIO_SRC (gst_base_audio_src_get_type()) |
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#define GST_BASE_AUDIO_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_AUDIO_SRC,GstBaseAudioSrc)) |
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#define GST_BASE_AUDIO_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_AUDIO_SRC,GstBaseAudioSrcClass)) |
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#define GST_BASE_AUDIO_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASE_AUDIO_SRC, GstBaseAudioSrcClass)) |
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#define GST_IS_BASE_AUDIO_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_AUDIO_SRC)) |
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#define GST_IS_BASE_AUDIO_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_AUDIO_SRC)) |
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/** |
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* GST_BASE_AUDIO_SRC_CLOCK: |
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* @obj: a #GstBaseAudioSrc |
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* |
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* Get the #GstClock of @obj. |
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*/ |
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#define GST_BASE_AUDIO_SRC_CLOCK(obj) (GST_BASE_AUDIO_SRC (obj)->clock) |
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/** |
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* GST_BASE_AUDIO_SRC_PAD: |
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* @obj: a #GstBaseAudioSrc |
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* |
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* Get the source #GstPad of @obj. |
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*/ |
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#define GST_BASE_AUDIO_SRC_PAD(obj) (GST_BASE_SRC (obj)->srcpad) |
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typedef struct _GstBaseAudioSrc GstBaseAudioSrc; |
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typedef struct _GstBaseAudioSrcClass GstBaseAudioSrcClass; |
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typedef struct _GstBaseAudioSrcPrivate GstBaseAudioSrcPrivate; |
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/** |
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* GstBaseAudioSrc: |
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* |
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* Opaque #GstBaseAudioSrc. |
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*/ |
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struct _GstBaseAudioSrc { |
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GstPushSrc element; |
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/*< protected >*/ /* with LOCK */ |
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/* our ringbuffer */ |
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GstRingBuffer *ringbuffer; |
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/* required buffer and latency */ |
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GstClockTime buffer_time; |
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GstClockTime latency_time; |
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/* the next sample to write */ |
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guint64 next_sample; |
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/* clock */ |
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GstClock *clock; |
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/*< private >*/ |
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GstBaseAudioSrcPrivate *priv; |
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gpointer _gst_reserved[GST_PADDING - 1]; |
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}; |
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/** |
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* GstBaseAudioSrcClass: |
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* @parent_class: the parent class. |
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* @create_ringbuffer: create and return a #GstRingBuffer to read from. |
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* |
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* #GstBaseAudioSrc class. Override the vmethod to implement |
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* functionality. |
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*/ |
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struct _GstBaseAudioSrcClass { |
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GstPushSrcClass parent_class; |
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/* subclass ringbuffer allocation */ |
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GstRingBuffer* (*create_ringbuffer) (GstBaseAudioSrc *src); |
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/*< private >*/ |
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gpointer _gst_reserved[GST_PADDING]; |
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}; |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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GType gst_base_audio_src_get_type(void); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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GstRingBuffer *gst_base_audio_src_create_ringbuffer (GstBaseAudioSrc *src); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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void gst_base_audio_src_set_provide_clock (GstBaseAudioSrc *src, gboolean provide); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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gboolean gst_base_audio_src_get_provide_clock (GstBaseAudioSrc *src); |
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G_END_DECLS |
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#endif /* __GST_BASE_AUDIO_SRC_H__ */ |