gstreamer/subprojects/gst-plugins-bad/sys/applemedia/vtutil.c
Nirbheek Chauhan 0f0e68080c applemedia: Add ProRes support to vtenc and vtdec
For vtdec, we continue to prefer NV12; else we pick whatever
downstream wants. In the special case where we're decoding 10-bit or
12-bit ProRes formats, we will prefer AYUV64.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1214>
2021-11-01 09:24:52 +00:00

137 lines
3.7 KiB
C

/*
* 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.
*/
#include "vtutil.h"
gchar *
gst_vtutil_object_to_string (CFTypeRef obj)
{
gchar *result;
CFStringRef s;
if (obj == NULL)
return g_strdup ("(null)");
s = CFCopyDescription (obj);
result = gst_vtutil_string_to_utf8 (s);
CFRelease (s);
return result;
}
gchar *
gst_vtutil_string_to_utf8 (CFStringRef s)
{
gchar *result;
CFIndex size;
size = CFStringGetMaximumSizeForEncoding (CFStringGetLength (s),
kCFStringEncodingUTF8);
result = g_malloc (size + 1);
CFStringGetCString (s, result, size + 1, kCFStringEncodingUTF8);
return result;
}
void
gst_vtutil_dict_set_i32 (CFMutableDictionaryRef dict, CFStringRef key,
gint32 value)
{
CFNumberRef number;
number = CFNumberCreate (NULL, kCFNumberSInt32Type, &value);
CFDictionarySetValue (dict, key, number);
CFRelease (number);
}
void
gst_vtutil_dict_set_string (CFMutableDictionaryRef dict, CFStringRef key,
const gchar * value)
{
CFStringRef string;
string = CFStringCreateWithCString (NULL, value, kCFStringEncodingASCII);
CFDictionarySetValue (dict, key, string);
CFRelease (string);
}
void
gst_vtutil_dict_set_boolean (CFMutableDictionaryRef dict, CFStringRef key,
gboolean value)
{
CFDictionarySetValue (dict, key, value ? kCFBooleanTrue : kCFBooleanFalse);
}
void
gst_vtutil_dict_set_data (CFMutableDictionaryRef dict, CFStringRef key,
guint8 * value, guint64 length)
{
CFDataRef data;
data = CFDataCreate (NULL, value, length);
CFDictionarySetValue (dict, key, data);
CFRelease (data);
}
void
gst_vtutil_dict_set_object (CFMutableDictionaryRef dict, CFStringRef key,
CFTypeRef * value)
{
CFDictionarySetValue (dict, key, value);
CFRelease (value);
}
CMVideoCodecType
gst_vtutil_codec_type_from_prores_variant (const char *variant)
{
if (g_strcmp0 (variant, "standard") == 0)
return kCMVideoCodecType_AppleProRes422;
else if (g_strcmp0 (variant, "4444xq") == 0)
return kCMVideoCodecType_AppleProRes4444XQ;
else if (g_strcmp0 (variant, "4444") == 0)
return kCMVideoCodecType_AppleProRes4444;
else if (g_strcmp0 (variant, "hq") == 0)
return kCMVideoCodecType_AppleProRes422HQ;
else if (g_strcmp0 (variant, "lt") == 0)
return kCMVideoCodecType_AppleProRes422LT;
else if (g_strcmp0 (variant, "proxy") == 0)
return kCMVideoCodecType_AppleProRes422Proxy;
return GST_kCMVideoCodecType_Some_AppleProRes;
}
const char *
gst_vtutil_codec_type_to_prores_variant (CMVideoCodecType codec_type)
{
switch (codec_type) {
case kCMVideoCodecType_AppleProRes422:
return "standard";
case kCMVideoCodecType_AppleProRes4444XQ:
return "4444xq";
case kCMVideoCodecType_AppleProRes4444:
return "4444";
case kCMVideoCodecType_AppleProRes422HQ:
return "hq";
case kCMVideoCodecType_AppleProRes422LT:
return "lt";
case kCMVideoCodecType_AppleProRes422Proxy:
return "proxy";
default:
g_assert_not_reached ();
}
}