mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-08 18:39:54 +00:00
6b47a37ed8
GObject and calloc() etc are initializing memory to 0, so using 0 as the unknown variant makes it more likely that mistakingly zero-initialized memory does not end up with a wrong DSD format. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4966>
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* GStreamer
|
|
* Copyright (C) 2023 Carlos Rafael Giani <crg7475@mailbox.org>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/audio/audio-prelude.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#if G_BYTE_ORDER == G_BIG_ENDIAN
|
|
#define _GST_DSD_FORMAT_NE(fmt) GST_DSD_FORMAT_ ## fmt ## BE
|
|
#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
|
|
#define _GST_DSD_FORMAT_NE(fmt) GST_DSD_FORMAT_ ## fmt ## LE
|
|
#endif
|
|
|
|
/**
|
|
* GstDsdFormat:
|
|
* @GST_DSD_FORMAT_UNKNOWN: unknown / invalid DSD format
|
|
* @GST_DSD_FORMAT_U8: 8 DSD bits in 1 byte
|
|
* @GST_DSD_FORMAT_U16LE: 16 DSD bits in 2 bytes, little endian order
|
|
* @GST_DSD_FORMAT_U16BE: 16 DSD bits in 2 bytes, big endian order
|
|
* @GST_DSD_FORMAT_U32LE: 32 DSD bits in 4 bytes, little endian order
|
|
* @GST_DSD_FORMAT_U32BE: 32 DSD bits in 4 bytes, big endian order
|
|
* @GST_NUM_DSD_FORMATS: number of valid DSD formats
|
|
* @GST_DSD_FORMAT_U16: 16 DSD bits in 2 bytes, native endianness
|
|
* @GST_DSD_FORMAT_U32: 32 DSD bits in 4 bytes, native endianness
|
|
*
|
|
* Enum value describing how DSD bits are grouped.
|
|
*
|
|
* Since: 1.24
|
|
*/
|
|
typedef enum {
|
|
GST_DSD_FORMAT_UNKNOWN = 0,
|
|
GST_DSD_FORMAT_U8,
|
|
GST_DSD_FORMAT_U16LE,
|
|
GST_DSD_FORMAT_U16BE,
|
|
GST_DSD_FORMAT_U32LE,
|
|
GST_DSD_FORMAT_U32BE,
|
|
|
|
GST_NUM_DSD_FORMATS,
|
|
|
|
/* native endianness equivalents */
|
|
GST_DSD_FORMAT_U16 = _GST_DSD_FORMAT_NE(U16),
|
|
GST_DSD_FORMAT_U32 = _GST_DSD_FORMAT_NE(U32)
|
|
} GstDsdFormat;
|
|
|
|
/**
|
|
* GST_DSD_FORMATS_ALL:
|
|
*
|
|
* List of all DSD formats, for use in template caps strings.
|
|
*
|
|
* Big endian formats are preferred, since little-endian ones flip around
|
|
* the DSD bytes, and most DSD hardware uses big endian formats.
|
|
*
|
|
* Since: 1.24
|
|
*/
|
|
#define GST_DSD_FORMATS_ALL "{ DSDU32BE, DSDU16BE, DSDU8, DSDU32LE, DSDU16LE }"
|
|
|
|
GST_AUDIO_API
|
|
GstDsdFormat gst_dsd_format_from_string (const gchar *str);
|
|
|
|
GST_AUDIO_API
|
|
const gchar * gst_dsd_format_to_string (GstDsdFormat format);
|
|
|
|
GST_AUDIO_API
|
|
guint gst_dsd_format_get_width (GstDsdFormat format);
|
|
|
|
G_END_DECLS
|