mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-20 05:18:20 +00:00
371e3e460a
We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
85 lines
3.5 KiB
C
85 lines
3.5 KiB
C
/* GStreamer
|
|
* Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
* (C) 2015 Wim Taymans <wim.taymans@gmail.com>
|
|
*
|
|
* audio-channel-mixer.h: setup of channel conversion matrices
|
|
*
|
|
* 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_CHANNEL_MIXER_H__
|
|
#define __GST_AUDIO_CHANNEL_MIXER_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/audio/audio.h>
|
|
|
|
typedef struct _GstAudioChannelMixer GstAudioChannelMixer;
|
|
|
|
/**
|
|
* GstAudioChannelMixerFlags:
|
|
* @GST_AUDIO_CHANNEL_MIXER_FLAGS_NONE: no flag
|
|
* @GST_AUDIO_CHANNEL_MIXER_FLAGS_NON_INTERLEAVED_IN: input channels are not interleaved
|
|
* @GST_AUDIO_CHANNEL_MIXER_FLAGS_NON_INTERLEAVED_OUT: output channels are not interleaved
|
|
* @GST_AUDIO_CHANNEL_MIXER_FLAGS_UNPOSITIONED_IN: input channels are explicitly unpositioned
|
|
* @GST_AUDIO_CHANNEL_MIXER_FLAGS_UNPOSITIONED_OUT: output channels are explicitly unpositioned
|
|
*
|
|
* Flags passed to gst_audio_channel_mixer_new()
|
|
*/
|
|
typedef enum {
|
|
GST_AUDIO_CHANNEL_MIXER_FLAGS_NONE = 0,
|
|
GST_AUDIO_CHANNEL_MIXER_FLAGS_NON_INTERLEAVED_IN = (1 << 0),
|
|
GST_AUDIO_CHANNEL_MIXER_FLAGS_NON_INTERLEAVED_OUT = (1 << 1),
|
|
GST_AUDIO_CHANNEL_MIXER_FLAGS_UNPOSITIONED_IN = (1 << 2),
|
|
GST_AUDIO_CHANNEL_MIXER_FLAGS_UNPOSITIONED_OUT = (1 << 3)
|
|
} GstAudioChannelMixerFlags;
|
|
|
|
GST_AUDIO_API
|
|
GstAudioChannelMixer * gst_audio_channel_mixer_new (GstAudioChannelMixerFlags flags,
|
|
GstAudioFormat format,
|
|
gint in_channels,
|
|
GstAudioChannelPosition *in_position,
|
|
gint out_channels,
|
|
GstAudioChannelPosition *out_position);
|
|
|
|
GST_AUDIO_API
|
|
GstAudioChannelMixer * gst_audio_channel_mixer_new_with_matrix (GstAudioChannelMixerFlags flags,
|
|
GstAudioFormat format,
|
|
gint in_channels,
|
|
gint out_channels,
|
|
gfloat **matrix);
|
|
|
|
GST_AUDIO_API
|
|
void gst_audio_channel_mixer_free (GstAudioChannelMixer *mix);
|
|
|
|
/*
|
|
* Checks for passthrough (= identity matrix).
|
|
*/
|
|
|
|
GST_AUDIO_API
|
|
gboolean gst_audio_channel_mixer_is_passthrough (GstAudioChannelMixer *mix);
|
|
|
|
/*
|
|
* Do actual mixing.
|
|
*/
|
|
|
|
GST_AUDIO_API
|
|
void gst_audio_channel_mixer_samples (GstAudioChannelMixer * mix,
|
|
const gpointer in[],
|
|
gpointer out[],
|
|
gint samples);
|
|
|
|
#endif /* __GST_AUDIO_CHANNEL_MIXER_H__ */
|