830d1595b9
* Expose an actual constructor from caps * Error out in overrides for code that was using the "manual allocation" pattern which only worked by chance. Direct the script writer to the new_from_caps constructor instead. Fixes https://gitlab.freedesktop.org/gstreamer/gst-python/-/issues/47 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1571>
144 lines
5.3 KiB
C
144 lines
5.3 KiB
C
/* GStreamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
* Library <2001> Thomas Vander Stichele <thomas@apestaart.org>
|
|
* <2011> Wim Taymans <wim.taymans@gmail.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_AUDIO_H__
|
|
#include <gst/audio/audio.h>
|
|
#endif
|
|
|
|
#ifndef __GST_AUDIO_INFO_H__
|
|
#define __GST_AUDIO_INFO_H__
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _GstAudioInfo GstAudioInfo;
|
|
|
|
/**
|
|
* GstAudioFlags:
|
|
* @GST_AUDIO_FLAG_NONE: no valid flag
|
|
* @GST_AUDIO_FLAG_UNPOSITIONED: the position array explicitly
|
|
* contains unpositioned channels.
|
|
*
|
|
* Extra audio flags
|
|
*/
|
|
typedef enum {
|
|
GST_AUDIO_FLAG_NONE = 0,
|
|
GST_AUDIO_FLAG_UNPOSITIONED = (1 << 0)
|
|
} GstAudioFlags;
|
|
|
|
/**
|
|
* GstAudioInfo:
|
|
* @finfo: the format info of the audio
|
|
* @flags: additional audio flags
|
|
* @layout: audio layout
|
|
* @rate: the audio sample rate
|
|
* @channels: the number of channels
|
|
* @bpf: the number of bytes for one frame, this is the size of one
|
|
* sample * @channels
|
|
* @position: the positions for each channel
|
|
*
|
|
* Information describing audio properties. This information can be filled
|
|
* in from GstCaps with gst_audio_info_from_caps().
|
|
*
|
|
* Use the provided macros to access the info in this structure.
|
|
*/
|
|
struct _GstAudioInfo {
|
|
const GstAudioFormatInfo *finfo;
|
|
GstAudioFlags flags;
|
|
GstAudioLayout layout;
|
|
gint rate;
|
|
gint channels;
|
|
gint bpf;
|
|
GstAudioChannelPosition position[64];
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
#define GST_TYPE_AUDIO_INFO (gst_audio_info_get_type ())
|
|
GST_AUDIO_API
|
|
GType gst_audio_info_get_type (void);
|
|
|
|
#define GST_AUDIO_INFO_IS_VALID(i) ((i)->finfo != NULL && (i)->rate > 0 && (i)->channels > 0 && (i)->bpf > 0)
|
|
|
|
#define GST_AUDIO_INFO_FORMAT(i) (GST_AUDIO_FORMAT_INFO_FORMAT((i)->finfo))
|
|
#define GST_AUDIO_INFO_NAME(i) (GST_AUDIO_FORMAT_INFO_NAME((i)->finfo))
|
|
#define GST_AUDIO_INFO_WIDTH(i) (GST_AUDIO_FORMAT_INFO_WIDTH((i)->finfo))
|
|
#define GST_AUDIO_INFO_DEPTH(i) (GST_AUDIO_FORMAT_INFO_DEPTH((i)->finfo))
|
|
#define GST_AUDIO_INFO_BPS(info) (GST_AUDIO_INFO_DEPTH(info) >> 3)
|
|
|
|
#define GST_AUDIO_INFO_IS_INTEGER(i) (GST_AUDIO_FORMAT_INFO_IS_INTEGER((i)->finfo))
|
|
#define GST_AUDIO_INFO_IS_FLOAT(i) (GST_AUDIO_FORMAT_INFO_IS_FLOAT((i)->finfo))
|
|
#define GST_AUDIO_INFO_IS_SIGNED(i) (GST_AUDIO_FORMAT_INFO_IS_SIGNED((i)->finfo))
|
|
|
|
#define GST_AUDIO_INFO_ENDIANNESS(i) (GST_AUDIO_FORMAT_INFO_ENDIANNESS((i)->finfo))
|
|
#define GST_AUDIO_INFO_IS_LITTLE_ENDIAN(i) (GST_AUDIO_FORMAT_INFO_IS_LITTLE_ENDIAN((i)->finfo))
|
|
#define GST_AUDIO_INFO_IS_BIG_ENDIAN(i) (GST_AUDIO_FORMAT_INFO_IS_BIG_ENDIAN((i)->finfo))
|
|
|
|
#define GST_AUDIO_INFO_FLAGS(info) ((info)->flags)
|
|
#define GST_AUDIO_INFO_IS_UNPOSITIONED(info) (((info)->flags & GST_AUDIO_FLAG_UNPOSITIONED) != 0)
|
|
#define GST_AUDIO_INFO_LAYOUT(info) ((info)->layout)
|
|
|
|
#define GST_AUDIO_INFO_RATE(info) ((info)->rate)
|
|
#define GST_AUDIO_INFO_CHANNELS(info) ((info)->channels)
|
|
#define GST_AUDIO_INFO_BPF(info) ((info)->bpf)
|
|
#define GST_AUDIO_INFO_POSITION(info,c) ((info)->position[c])
|
|
|
|
GST_AUDIO_API
|
|
GstAudioInfo * gst_audio_info_new (void);
|
|
|
|
GST_AUDIO_API
|
|
GstAudioInfo * gst_audio_info_new_from_caps (const GstCaps * caps);
|
|
|
|
GST_AUDIO_API
|
|
void gst_audio_info_init (GstAudioInfo *info);
|
|
|
|
GST_AUDIO_API
|
|
GstAudioInfo * gst_audio_info_copy (const GstAudioInfo *info);
|
|
|
|
GST_AUDIO_API
|
|
void gst_audio_info_free (GstAudioInfo *info);
|
|
|
|
GST_AUDIO_API
|
|
void gst_audio_info_set_format (GstAudioInfo *info, GstAudioFormat format,
|
|
gint rate, gint channels,
|
|
const GstAudioChannelPosition *position);
|
|
|
|
GST_AUDIO_API
|
|
gboolean gst_audio_info_from_caps (GstAudioInfo *info, const GstCaps *caps);
|
|
|
|
GST_AUDIO_API
|
|
GstCaps * gst_audio_info_to_caps (const GstAudioInfo *info);
|
|
|
|
GST_AUDIO_API
|
|
gboolean gst_audio_info_convert (const GstAudioInfo * info,
|
|
GstFormat src_fmt, gint64 src_val,
|
|
GstFormat dest_fmt, gint64 * dest_val);
|
|
|
|
GST_AUDIO_API
|
|
gboolean gst_audio_info_is_equal (const GstAudioInfo *info,
|
|
const GstAudioInfo *other);
|
|
|
|
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAudioInfo, gst_audio_info_free)
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_AUDIO_INFO_H__ */
|