gstreamer/subprojects/gst-plugins-bad/sys/applemedia/vtutil.h

/*
 * Copyright (C) 2010 Ole André Vadla Ravnås <oleavr@soundrop.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_VTUTIL_H__
#define __GST_VTUTIL_H__

#include <glib.h>
#include <gst/gst.h>
#include <CoreFoundation/CoreFoundation.h>
#include <CoreMedia/CoreMedia.h>

/* Some formats such as Apple ProRes have separate codec type mappings for all
 * variants / profiles, and we don't want to instantiate separate elements for
 * each variant, so we use a dummy type for details->format_id */
#define GST_kCMVideoCodecType_Some_AppleProRes  1

// kCVPixelFormatType_64RGBALE is only available for 11.3 +.
// See https://developer.apple.com/documentation/corevideo/1563591-pixel_format_identifiers/kcvpixelformattype_64rgbale
#if defined(MAC_OS_X_VERSION_MAX_ALLOWED) && MAC_OS_X_VERSION_MAX_ALLOWED < 110300
#define kCVPixelFormatType_64RGBALE 'l64r'
#endif
#define GST_VTUTIL_HAVE_64ARGBALE __builtin_available(macOS 11.3, *)

G_BEGIN_DECLS

gchar * gst_vtutil_object_to_string (CFTypeRef obj);
gchar * gst_vtutil_string_to_utf8 (CFStringRef s);
void gst_vtutil_dict_set_i32 (CFMutableDictionaryRef dict,
    CFStringRef key, gint32 value);
void gst_vtutil_dict_set_string (CFMutableDictionaryRef dict,
    CFStringRef key, const gchar * value);
void gst_vtutil_dict_set_boolean (CFMutableDictionaryRef dict,
    CFStringRef key, gboolean value);
void gst_vtutil_dict_set_data (CFMutableDictionaryRef dict,
    CFStringRef key, guint8 * value, guint64 length);
void gst_vtutil_dict_set_object (CFMutableDictionaryRef dict,
    CFStringRef key, CFTypeRef * value);

CMVideoCodecType gst_vtutil_codec_type_from_prores_variant (const char * variant);
const char * gst_vtutil_codec_type_to_prores_variant (CMVideoCodecType codec_type);

GstCaps * gst_vtutil_caps_append_video_format (GstCaps * caps,
                                               const char * vfmt);

G_END_DECLS

#endif /* __GST_VTUTIL_H__ */