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1/*
2 * Copyright (C) 2010 Ole André Vadla Ravnås <oleavr@soundrop.com>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#ifdef HAVE_CONFIG_H
21#  include "config.h"
22#endif
23
24#if !HAVE_IOS
25#import <AppKit/AppKit.h>
26#endif
27#include "videotexturecache.h"
28#include "coremediabuffer.h"
29#include "corevideobuffer.h"
30#include "vtutil.h"
31
32G_DEFINE_ABSTRACT_TYPE (GstVideoTextureCache, gst_video_texture_cache, G_TYPE_OBJECT);
33
34static void gst_video_texture_cache_default_set_format (GstVideoTextureCache * cache,
35    GstVideoFormat in_format, GstCaps * out_caps);
36
37static void
38gst_video_texture_cache_finalize (GObject * object)
39{
40  GstVideoTextureCache *cache = GST_VIDEO_TEXTURE_CACHE (object);
41
42  if (cache->in_caps)
43    gst_caps_unref (cache->in_caps);
44  if (cache->out_caps)
45    gst_caps_unref (cache->out_caps);
46
47  G_OBJECT_CLASS (gst_video_texture_cache_parent_class)->finalize (object);
48}
49
50static void
51gst_video_texture_cache_init (GstVideoTextureCache * cache)
52{
53  gst_video_info_init (&cache->input_info);
54}
55
56static void
57gst_video_texture_cache_class_init (GstVideoTextureCacheClass *klass)
58{
59  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
60
61  gobject_class->finalize = gst_video_texture_cache_finalize;
62
63  klass->set_format = gst_video_texture_cache_default_set_format;
64}
65
66static void
67gst_video_texture_cache_default_set_format (GstVideoTextureCache * cache,
68    GstVideoFormat in_format, GstCaps * out_caps)
69{
70  GstCaps *in_caps;
71
72  g_return_if_fail (gst_caps_is_fixed (out_caps));
73
74  out_caps = gst_caps_copy (out_caps);
75  gst_video_info_from_caps (&cache->output_info, out_caps);
76
77  in_caps = gst_caps_copy (out_caps);
78  gst_caps_set_simple (in_caps, "format",
79          G_TYPE_STRING, gst_video_format_to_string (in_format), NULL);
80  gst_video_info_from_caps (&cache->input_info, in_caps);
81
82  gst_caps_take (&cache->in_caps, in_caps);
83  gst_caps_take (&cache->out_caps, out_caps);
84}
85
86void
87gst_video_texture_cache_set_format (GstVideoTextureCache * cache,
88    GstVideoFormat in_format, GstCaps * out_caps)
89{
90  GstVideoTextureCacheClass *cache_class = GST_VIDEO_TEXTURE_CACHE_GET_CLASS (cache);
91
92  g_return_if_fail (cache_class->set_format);
93  cache_class->set_format (cache, in_format, out_caps);
94}
95
96GstMemory *
97gst_video_texture_cache_create_memory (GstVideoTextureCache * cache,
98      GstAppleCoreVideoPixelBuffer *gpixbuf, guint plane, gsize size)
99{
100  GstVideoTextureCacheClass *cache_class = GST_VIDEO_TEXTURE_CACHE_GET_CLASS (cache);
101
102  g_return_val_if_fail (cache_class->create_memory, NULL);
103  return cache_class->create_memory (cache, gpixbuf, plane, size);
104}
105