1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license and patent
* grant that can be found in the LICENSE file in the root of the source
* tree. All contributing project authors may be found in the AUTHORS
* file in the root of the source tree.
*/
/*!\file vpx_decoder.c
* \brief Provides the high level interface to wrap decoder algorithms.
*
*/
#include <stdlib.h>
#include "vpx_codec/internal/vpx_codec_internal.h"
#define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var)
vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface,
const uint8_t *data,
unsigned int data_sz,
vpx_codec_stream_info_t *si)
{
vpx_codec_err_t res;
if (!iface || !data || !data_sz || !si
|| si->sz < sizeof(vpx_codec_stream_info_t))
res = VPX_CODEC_INVALID_PARAM;
else
{
/* Set default/unknown values */
si->w = 0;
si->h = 0;
res = iface->dec.peek_si(data, data_sz, si);
}
return res;
}
vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx,
vpx_codec_stream_info_t *si)
{
vpx_codec_err_t res;
if (!ctx || !si || si->sz < sizeof(vpx_codec_stream_info_t))
res = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv)
res = VPX_CODEC_ERROR;
else
{
/* Set default/unknown values */
si->w = 0;
si->h = 0;
res = ctx->iface->dec.get_si(ctx->priv->alg_priv, si);
}
return SAVE_STATUS(ctx, res);
}
vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx,
const uint8_t *data,
unsigned int data_sz,
void *user_priv,
long deadline)
{
vpx_codec_err_t res;
if (!ctx || !data || !data_sz)
res = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv)
res = VPX_CODEC_ERROR;
#if CONFIG_EVAL_LIMIT
else if (ctx->priv->eval_counter >= 500)
{
ctx->priv->err_detail = "Evaluation limit exceeded.";
res = VPX_CODEC_ERROR;
}
#endif
else
{
res = ctx->iface->dec.decode(ctx->priv->alg_priv, data, data_sz,
user_priv, deadline);
#if CONFIG_EVAL_LIMIT
ctx->priv->eval_counter++;
#endif
}
return SAVE_STATUS(ctx, res);
}
vpx_image_t *vpx_codec_get_frame(vpx_codec_ctx_t *ctx,
vpx_codec_iter_t *iter)
{
vpx_image_t *img;
if (!ctx || !iter || !ctx->iface || !ctx->priv)
img = NULL;
else
img = ctx->iface->dec.get_frame(ctx->priv->alg_priv, iter);
return img;
}
vpx_codec_err_t vpx_codec_register_put_frame_cb(vpx_codec_ctx_t *ctx,
vpx_codec_put_frame_cb_fn_t cb,
void *user_priv)
{
vpx_codec_err_t res;
if (!ctx || !cb)
res = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv
|| !(ctx->iface->caps & VPX_CODEC_CAP_PUT_FRAME))
res = VPX_CODEC_ERROR;
else
{
ctx->priv->dec.put_frame_cb.put_frame = cb;
ctx->priv->dec.put_frame_cb.user_priv = user_priv;
res = VPX_CODEC_OK;
}
return SAVE_STATUS(ctx, res);
}
vpx_codec_err_t vpx_codec_register_put_slice_cb(vpx_codec_ctx_t *ctx,
vpx_codec_put_slice_cb_fn_t cb,
void *user_priv)
{
vpx_codec_err_t res;
if (!ctx || !cb)
res = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv
|| !(ctx->iface->caps & VPX_CODEC_CAP_PUT_FRAME))
res = VPX_CODEC_ERROR;
else
{
ctx->priv->dec.put_slice_cb.put_slice = cb;
ctx->priv->dec.put_slice_cb.user_priv = user_priv;
res = VPX_CODEC_OK;
}
return SAVE_STATUS(ctx, res);
}
vpx_codec_err_t vpx_codec_get_mem_map(vpx_codec_ctx_t *ctx,
vpx_codec_mmap_t *mmap,
vpx_codec_iter_t *iter)
{
vpx_codec_err_t res = VPX_CODEC_OK;
if (!ctx || !mmap || !iter || !ctx->iface)
res = VPX_CODEC_INVALID_PARAM;
else if (!(ctx->iface->caps & VPX_CODEC_CAP_XMA))
res = VPX_CODEC_ERROR;
else
res = ctx->iface->get_mmap(ctx, mmap, iter);
return SAVE_STATUS(ctx, res);
}
vpx_codec_err_t vpx_codec_set_mem_map(vpx_codec_ctx_t *ctx,
vpx_codec_mmap_t *mmap,
unsigned int num_maps)
{
vpx_codec_err_t res = VPX_CODEC_MEM_ERROR;
if (!ctx || !mmap || !ctx->iface)
res = VPX_CODEC_INVALID_PARAM;
else if (!(ctx->iface->caps & VPX_CODEC_CAP_XMA))
res = VPX_CODEC_ERROR;
else
{
unsigned int i;
for (i = 0; i < num_maps; i++, mmap++)
{
if (!mmap->base)
break;
/* Everything look ok, set the mmap in the decoder */
res = ctx->iface->set_mmap(ctx, mmap);
if (res)
break;
}
}
return SAVE_STATUS(ctx, res);
}
|
