gstreamer/gst/audiobuffersplit/gstaudiobuffersplit.h
Sebastian Dröge f19edc8c83 audiobuffersplit: Add a gapless mode which inserts silence/drops samples on disconts
The output is always a continguous stream without any gaps.
2018-08-17 16:40:16 +03:00

76 lines
2.5 KiB
C

/*
* GStreamer
* Copyright (C) 2016 Sebastian Dröge <sebastian@centricular.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_AUDIO_BUFFER_SPLIT_H__
#define __GST_AUDIO_BUFFER_SPLIT_H__
#include <gst/gst.h>
#include <gst/base/base.h>
#include <gst/audio/audio.h>
G_BEGIN_DECLS
#define GST_TYPE_AUDIO_BUFFER_SPLIT (gst_audio_buffer_split_get_type())
#define GST_AUDIO_BUFFER_SPLIT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_BUFFER_SPLIT,GstAudioBufferSplit))
#define GST_IS_AUDIO_BUFFER_SPLIT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_BUFFER_SPLIT))
#define GST_AUDIO_BUFFER_SPLIT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_BUFFER_SPLIT,GstAudioBufferSplitClass))
#define GST_IS_AUDIO_BUFFER_SPLIT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_BUFFER_SPLIT))
#define GST_AUDIO_BUFFER_SPLIT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_BUFFER_SPLIT,GstAudioBufferSplitClass))
typedef struct _GstAudioBufferSplit GstAudioBufferSplit;
typedef struct _GstAudioBufferSplitClass GstAudioBufferSplitClass;
struct _GstAudioBufferSplit {
GstElement parent;
GstPad *srcpad, *sinkpad;
/* Properties */
gint output_buffer_duration_n;
gint output_buffer_duration_d;
/* State */
GstSegment segment;
GstAudioInfo info;
GstAdapter *adapter;
GstAudioStreamAlign *stream_align;
GstClockTime resync_time;
guint64 current_offset; /* offset from start time in samples */
guint64 drop_samples; /* number of samples to drop in gapless mode */
guint samples_per_buffer;
guint error_per_buffer;
guint accumulated_error;
gboolean strict_buffer_size;
gboolean gapless;
};
struct _GstAudioBufferSplitClass {
GstElementClass parent_class;
};
GType gst_audio_buffer_split_get_type (void);
G_END_DECLS
#endif /* __GST_AUDIO_BUFFER_SPLIT_H__ */