mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 18:51:11 +00:00
00d7c52de8
Original commit message from CVS: * gst/audioconvert/audioconvert.c: (float), (double), (float_hq), (double_hq), (audio_convert_get_func_index), (audio_convert_prepare_context), (audio_convert_convert): * gst/audioconvert/audioconvert.h: * gst/audioconvert/gstchannelmix.c: (gst_channel_mix_setup_matrix), (gst_channel_mix_mix_int), (gst_channel_mix_mix_float): * gst/audioconvert/gstchannelmix.h: * tests/check/elements/audioconvert.c: (GST_START_TEST): Add float as an intermediate format, as well as float mixing. Enable test that was failing before. Fixes #339837
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/* GStreamer
|
|
* Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
*
|
|
* audioconvert.h: audio format conversion library
|
|
*
|
|
* 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 __AUDIO_CONVERT_H__
|
|
#define __AUDIO_CONVERT_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/audio/multichannel.h>
|
|
|
|
typedef struct _AudioConvertCtx AudioConvertCtx;
|
|
typedef struct _AudioConvertFmt AudioConvertFmt;
|
|
|
|
struct _AudioConvertFmt
|
|
{
|
|
/* general caps */
|
|
gboolean is_int;
|
|
gint endianness;
|
|
gint width;
|
|
gint rate;
|
|
gint channels;
|
|
GstAudioChannelPosition *pos;
|
|
|
|
/* int audio caps */
|
|
gboolean sign;
|
|
gint depth;
|
|
|
|
gint unit_size;
|
|
};
|
|
|
|
typedef void (*AudioConvertUnpack) (gpointer src, gpointer dst, gint scale, gint count);
|
|
typedef void (*AudioConvertPack) (gpointer src, gpointer dst, gint scale, gint count);
|
|
|
|
typedef void (*AudioConvertMix) (AudioConvertCtx *, gpointer, gpointer, gint);
|
|
|
|
struct _AudioConvertCtx
|
|
{
|
|
AudioConvertFmt in;
|
|
AudioConvertFmt out;
|
|
|
|
AudioConvertUnpack unpack;
|
|
AudioConvertPack pack;
|
|
|
|
/* channel conversion matrix, m[in_channels][out_channels].
|
|
* If identity matrix, passthrough applies. */
|
|
gfloat **matrix;
|
|
/* temp storage for channelmix */
|
|
gpointer tmp;
|
|
|
|
gboolean in_default;
|
|
gboolean mix_passthrough;
|
|
gboolean out_default;
|
|
|
|
gpointer tmpbuf;
|
|
gint tmpbufsize;
|
|
|
|
gint in_scale;
|
|
gint out_scale;
|
|
|
|
AudioConvertMix channel_mix;
|
|
};
|
|
|
|
gboolean audio_convert_clean_fmt (AudioConvertFmt *fmt);
|
|
|
|
gboolean audio_convert_prepare_context (AudioConvertCtx *ctx, AudioConvertFmt *in,
|
|
AudioConvertFmt *out);
|
|
gboolean audio_convert_get_sizes (AudioConvertCtx *ctx, gint samples, gint *srcsize,
|
|
gint *dstsize);
|
|
|
|
gboolean audio_convert_clean_context (AudioConvertCtx *ctx);
|
|
|
|
gboolean audio_convert_convert (AudioConvertCtx *ctx, gpointer src,
|
|
gpointer dst, gint samples, gboolean src_writable);
|
|
|
|
#endif /* __AUDIO_CONVERT_H__ */
|