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
|
/*
* Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file libavcodec/libschroedinger.c
* function definitions common to libschroedingerdec.c and libschroedingerenc.c
*/
#include "libdirac_libschro.h"
#include "libschroedinger.h"
/**
* Schroedinger video preset table. Ensure that this tables matches up correctly
* with the ff_dirac_schro_video_format_info table in libdirac_libschro.c.
*/
static const SchroVideoFormatEnum ff_schro_video_formats[]={
SCHRO_VIDEO_FORMAT_CUSTOM ,
SCHRO_VIDEO_FORMAT_QSIF ,
SCHRO_VIDEO_FORMAT_QCIF ,
SCHRO_VIDEO_FORMAT_SIF ,
SCHRO_VIDEO_FORMAT_CIF ,
SCHRO_VIDEO_FORMAT_4SIF ,
SCHRO_VIDEO_FORMAT_4CIF ,
SCHRO_VIDEO_FORMAT_SD480I_60 ,
SCHRO_VIDEO_FORMAT_SD576I_50 ,
SCHRO_VIDEO_FORMAT_HD720P_60 ,
SCHRO_VIDEO_FORMAT_HD720P_50 ,
SCHRO_VIDEO_FORMAT_HD1080I_60 ,
SCHRO_VIDEO_FORMAT_HD1080I_50 ,
SCHRO_VIDEO_FORMAT_HD1080P_60 ,
SCHRO_VIDEO_FORMAT_HD1080P_50 ,
SCHRO_VIDEO_FORMAT_DC2K_24 ,
SCHRO_VIDEO_FORMAT_DC4K_24 ,
};
SchroVideoFormatEnum ff_get_schro_video_format_preset(AVCodecContext *avccontext)
{
unsigned int num_formats = sizeof(ff_schro_video_formats) /
sizeof(ff_schro_video_formats[0]);
unsigned int idx = ff_dirac_schro_get_video_format_idx (avccontext);
return (idx < num_formats) ? ff_schro_video_formats[idx] :
SCHRO_VIDEO_FORMAT_CUSTOM;
}
int ff_get_schro_frame_format (SchroChromaFormat schro_pix_fmt,
SchroFrameFormat *schro_frame_fmt)
{
unsigned int num_formats = sizeof(ffmpeg_schro_pixel_format_map) /
sizeof(ffmpeg_schro_pixel_format_map[0]);
int idx;
for (idx = 0; idx < num_formats; ++idx) {
if (ffmpeg_schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) {
*schro_frame_fmt = ffmpeg_schro_pixel_format_map[idx].schro_frame_fmt;
return 0;
}
}
return -1;
}
static void FreeSchroFrame(SchroFrame *frame, void *priv)
{
AVPicture *p_pic = priv;
if (!p_pic)
return;
avpicture_free(p_pic);
av_freep(&p_pic);
}
SchroFrame *ff_create_schro_frame(AVCodecContext *avccontext,
SchroFrameFormat schro_frame_fmt)
{
AVPicture *p_pic;
SchroFrame *p_frame;
int y_width, uv_width;
int y_height, uv_height;
int i;
y_width = avccontext->width;
y_height = avccontext->height;
uv_width = y_width >> (SCHRO_FRAME_FORMAT_H_SHIFT(schro_frame_fmt));
uv_height = y_height >> (SCHRO_FRAME_FORMAT_V_SHIFT(schro_frame_fmt));
p_pic = av_mallocz(sizeof(AVPicture));
avpicture_alloc(p_pic, avccontext->pix_fmt, y_width, y_height);
p_frame = schro_frame_new();
p_frame->format = schro_frame_fmt;
p_frame->width = y_width;
p_frame->height = y_height;
schro_frame_set_free_callback(p_frame, FreeSchroFrame, (void *)p_pic);
for (i = 0; i < 3; ++i) {
p_frame->components[i].width = i ? uv_width : y_width;
p_frame->components[i].stride = p_pic->linesize[i];
p_frame->components[i].height = i ? uv_height : y_height;
p_frame->components[i].length =
p_frame->components[i].stride * p_frame->components[i].height;
p_frame->components[i].data = p_pic->data[i];
if (i) {
p_frame->components[i].v_shift =
SCHRO_FRAME_FORMAT_V_SHIFT(p_frame->format);
p_frame->components[i].h_shift =
SCHRO_FRAME_FORMAT_H_SHIFT(p_frame->format);
}
}
return p_frame;
}
|
