mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-05 17:09:48 +00:00
85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
/*
|
|
* Copyright (C) 2001 CodeFactory AB
|
|
* Copyright (C) 2001 Thomas Nyberg <thomas@codefactory.se>
|
|
* Copyright (C) 2001-2002 Andy Wingo <apwingo@eos.ncsu.edu>
|
|
* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
|
|
*
|
|
* 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_ALSA_H__
|
|
#define __GST_ALSA_H__
|
|
|
|
|
|
#define ALSA_PCM_NEW_HW_PARAMS_API
|
|
#define ALSA_PCM_NEW_SW_PARAMS_API
|
|
|
|
#include <alsa/asoundlib.h>
|
|
#include <alsa/control.h>
|
|
#include <alsa/error.h>
|
|
#include <gst/gst.h>
|
|
#include <gst/audio/audio.h>
|
|
|
|
#define GST_CHECK_ALSA_VERSION(major,minor,micro) \
|
|
(SND_LIB_MAJOR > (major) || \
|
|
(SND_LIB_MAJOR == (major) && SND_LIB_MINOR > (minor)) || \
|
|
(SND_LIB_MAJOR == (major) && SND_LIB_MINOR == (minor) && \
|
|
SND_LIB_SUBMINOR >= (micro)))
|
|
|
|
#define PASSTHROUGH_CAPS \
|
|
"audio/x-ac3, framed = (boolean) true;" \
|
|
"audio/x-eac3, framed = (boolean) true; " \
|
|
"audio/x-dts, framed = (boolean) true, " \
|
|
"block-size = (int) { 512, 1024, 2048 }; " \
|
|
"audio/mpeg, mpegversion = (int) 1, " \
|
|
"mpegaudioversion = (int) [ 1, 3 ], parsed = (boolean) true;"
|
|
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN (alsa_debug);
|
|
#define GST_CAT_DEFAULT alsa_debug
|
|
|
|
snd_pcm_t * gst_alsa_open_iec958_pcm (GstObject * obj, gchar *device);
|
|
|
|
GstCaps * gst_alsa_probe_supported_formats (GstObject * obj,
|
|
gchar * device,
|
|
snd_pcm_t * handle,
|
|
const GstCaps * template_caps);
|
|
|
|
gchar * gst_alsa_find_device_name (GstObject * obj,
|
|
const gchar * device,
|
|
snd_pcm_t * handle,
|
|
snd_pcm_stream_t stream);
|
|
|
|
gchar * gst_alsa_find_card_name (GstObject * obj,
|
|
const gchar * devcard,
|
|
snd_pcm_stream_t stream);
|
|
|
|
void gst_alsa_add_channel_reorder_map (GstObject * obj,
|
|
GstCaps * caps);
|
|
|
|
extern const GstAudioChannelPosition alsa_position[][8];
|
|
#ifdef SND_CHMAP_API_VERSION
|
|
gboolean alsa_chmap_to_channel_positions (const snd_pcm_chmap_t *chmap,
|
|
GstAudioChannelPosition *pos);
|
|
|
|
void alsa_detect_channels_mapping (GstObject * obj,
|
|
snd_pcm_t * handle,
|
|
GstAudioRingBufferSpec * spec,
|
|
guint channels,
|
|
GstAudioRingBuffer * buf);
|
|
#endif
|
|
|
|
#endif /* __GST_ALSA_H__ */
|