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
|
/* This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
#include "hb.h"
#include "theora/theora.h"
int enctheoraInit( hb_work_object_t *, hb_job_t * );
int enctheoraWork( hb_work_object_t *, hb_buffer_t **, hb_buffer_t ** );
void enctheoraClose( hb_work_object_t * );
hb_work_object_t hb_enctheora =
{
WORK_ENCTHEORA,
"Theora encoder (libtheora)",
enctheoraInit,
enctheoraWork,
enctheoraClose
};
struct hb_work_private_s
{
hb_job_t * job;
theora_state theora;
};
int enctheoraInit( hb_work_object_t * w, hb_job_t * job )
{
hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
w->private_data = pv;
pv->job = job;
theora_info ti;
theora_comment tc;
ogg_packet op;
theora_info_init( &ti );
ti.width = ti.frame_width = job->width;
ti.height = ti.frame_height = job->height;
ti.offset_x = ti.offset_y = 0;
ti.fps_numerator = job->vrate;
ti.fps_denominator = job->vrate_base;
if (job->pixel_ratio)
{
ti.aspect_numerator = job->pixel_aspect_width;
ti.aspect_denominator = job->pixel_aspect_height;
}
else
{
ti.aspect_numerator = ti.aspect_denominator = 1;
}
ti.colorspace = OC_CS_UNSPECIFIED;
ti.pixelformat = OC_PF_420;
ti.keyframe_auto_p = 1;
ti.keyframe_frequency = (job->vrate / job->vrate_base) + 1;
ti.keyframe_frequency_force = (10 * job->vrate / job->vrate_base) + 1;
/* From encoder_example.c */
ti.quick_p = 1;
ti.dropframes_p = 0;
ti.keyframe_auto_threshold = 80;
ti.keyframe_mindistance = 8;
ti.noise_sensitivity = 1;
ti.sharpness = 0;
if (job->vquality < 0.0 || job->vquality > 1.0)
{
ti.target_bitrate = job->vbitrate * 1000;
ti.keyframe_data_target_bitrate = job->vbitrate * 1000 * 1.5;
ti.quality = 0;
}
else
{
ti.target_bitrate = 0;
ti.quality = 63 * job->vquality;
}
theora_encode_init( &pv->theora, &ti );
theora_info_clear( &ti );
theora_encode_header( &pv->theora, &op );
memcpy(w->config->theora.headers[0], &op, sizeof(op));
memcpy(w->config->theora.headers[0] + sizeof(op), op.packet, op.bytes );
theora_comment_init(&tc);
theora_encode_comment(&tc,&op);
memcpy(w->config->theora.headers[1], &op, sizeof(op));
memcpy(w->config->theora.headers[1] + sizeof(op), op.packet, op.bytes );
free(op.packet);
theora_encode_tables(&pv->theora, &op);
memcpy(w->config->theora.headers[2], &op, sizeof(op));
memcpy(w->config->theora.headers[2] + sizeof(op), op.packet, op.bytes );
return 0;
}
/***********************************************************************
* Close
***********************************************************************
*
**********************************************************************/
void enctheoraClose( hb_work_object_t * w )
{
hb_work_private_t * pv = w->private_data;
/* TODO: Free alloc'd */
free( pv );
w->private_data = NULL;
}
/***********************************************************************
* Work
***********************************************************************
*
**********************************************************************/
int enctheoraWork( hb_work_object_t * w, hb_buffer_t ** buf_in,
hb_buffer_t ** buf_out )
{
hb_work_private_t * pv = w->private_data;
hb_job_t * job = pv->job;
hb_buffer_t * in = *buf_in, * buf;
yuv_buffer yuv;
ogg_packet op;
if ( in->size <= 0 )
{
// EOF on input - send it downstream & say we're done.
// XXX may need to flush packets via a call to
// theora_encode_packetout(&pv->theora, 1, &op);
// but we don't have a timestamp to put on those packets so we
// drop them for now.
*buf_out = in;
*buf_in = NULL;
return HB_WORK_DONE;
}
memset(&op, 0, sizeof(op));
memset(&yuv, 0, sizeof(yuv));
yuv.y_width = job->width;
yuv.y_height = job->height;
yuv.y_stride = job->width;
yuv.uv_width = (job->width + 1) / 2;
yuv.uv_height = (job->height + 1) / 2;
yuv.uv_stride = yuv.uv_width;
yuv.y = in->data;
yuv.u = in->data + job->width * job->height;
yuv.v = in->data + yuv.uv_width * yuv.uv_height;
theora_encode_YUVin(&pv->theora, &yuv);
theora_encode_packetout(&pv->theora, 0, &op);
buf = hb_buffer_init( op.bytes + sizeof(op) );
memcpy(buf->data, &op, sizeof(op));
memcpy(buf->data + sizeof(op), op.packet, op.bytes);
buf->frametype = ( theora_packet_iskeyframe(&op) ) ? HB_FRAME_KEY : HB_FRAME_REF;
buf->start = in->start;
buf->stop = in->stop;
*buf_out = buf;
return HB_WORK_OK;
}
|
