1
by Reinhard Tartler
Import upstream version 0.6.2 |
1 |
/*
|
2 |
* Copyright (C) 2003 the ffmpeg project
|
|
3 |
*
|
|
1.1.1
by Reinhard Tartler
Import upstream version 0.7~b1 |
4 |
* This file is part of Libav.
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
5 |
*
|
1.1.1
by Reinhard Tartler
Import upstream version 0.7~b1 |
6 |
* Libav is free software; you can redistribute it and/or
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
7 |
* modify it under the terms of the GNU Lesser General Public
|
8 |
* License as published by the Free Software Foundation; either
|
|
9 |
* version 2.1 of the License, or (at your option) any later version.
|
|
10 |
*
|
|
1.1.1
by Reinhard Tartler
Import upstream version 0.7~b1 |
11 |
* Libav is distributed in the hope that it will be useful,
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
14 |
* Lesser General Public License for more details.
|
|
15 |
*
|
|
16 |
* You should have received a copy of the GNU Lesser General Public
|
|
1.1.1
by Reinhard Tartler
Import upstream version 0.7~b1 |
17 |
* License along with Libav; if not, write to the Free Software
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
19 |
*/
|
|
20 |
||
21 |
/**
|
|
22 |
* @file
|
|
23 |
* id RoQ Video Decoder by Dr. Tim Ferguson
|
|
24 |
* For more information about the id RoQ format, visit:
|
|
25 |
* http://www.csse.monash.edu.au/~timf/
|
|
26 |
*/
|
|
27 |
||
28 |
#include <stdio.h> |
|
29 |
#include <stdlib.h> |
|
30 |
#include <string.h> |
|
31 |
||
32 |
#include "avcodec.h" |
|
33 |
#include "bytestream.h" |
|
1.1.23
by Reinhard Tartler
Import upstream version 10~alpha1 |
34 |
#include "internal.h" |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
35 |
#include "roqvideo.h" |
36 |
||
37 |
static void roqvideo_decode_frame(RoqContext *ri) |
|
38 |
{
|
|
39 |
unsigned int chunk_id = 0, chunk_arg = 0; |
|
40 |
unsigned long chunk_size = 0; |
|
41 |
int i, j, k, nv1, nv2, vqflg = 0, vqflg_pos = -1; |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
42 |
int vqid, xpos, ypos, xp, yp, x, y, mx, my; |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
43 |
int frame_stats[2][4] = {{0},{0}}; |
44 |
roq_qcell *qcell; |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
45 |
int64_t chunk_start; |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
46 |
|
1.1.17
by Reinhard Tartler
Import upstream version 9.4 |
47 |
while (bytestream2_get_bytes_left(&ri->gb) >= 8) { |
1.1.11
by Reinhard Tartler
Import upstream version 0.8.99-1537-gacb2c79 |
48 |
chunk_id = bytestream2_get_le16(&ri->gb); |
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
49 |
chunk_size = bytestream2_get_le32(&ri->gb); |
1.1.11
by Reinhard Tartler
Import upstream version 0.8.99-1537-gacb2c79 |
50 |
chunk_arg = bytestream2_get_le16(&ri->gb); |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
51 |
|
52 |
if(chunk_id == RoQ_QUAD_VQ) |
|
53 |
break; |
|
54 |
if(chunk_id == RoQ_QUAD_CODEBOOK) { |
|
55 |
if((nv1 = chunk_arg >> 8) == 0) |
|
56 |
nv1 = 256; |
|
57 |
if((nv2 = chunk_arg & 0xff) == 0 && nv1 * 6 < chunk_size) |
|
58 |
nv2 = 256; |
|
59 |
for(i = 0; i < nv1; i++) { |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
60 |
ri->cb2x2[i].y[0] = bytestream2_get_byte(&ri->gb); |
61 |
ri->cb2x2[i].y[1] = bytestream2_get_byte(&ri->gb); |
|
62 |
ri->cb2x2[i].y[2] = bytestream2_get_byte(&ri->gb); |
|
63 |
ri->cb2x2[i].y[3] = bytestream2_get_byte(&ri->gb); |
|
1.1.11
by Reinhard Tartler
Import upstream version 0.8.99-1537-gacb2c79 |
64 |
ri->cb2x2[i].u = bytestream2_get_byte(&ri->gb); |
65 |
ri->cb2x2[i].v = bytestream2_get_byte(&ri->gb); |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
66 |
}
|
67 |
for(i = 0; i < nv2; i++) |
|
68 |
for(j = 0; j < 4; j++) |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
69 |
ri->cb4x4[i].idx[j] = bytestream2_get_byte(&ri->gb); |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
70 |
}
|
71 |
}
|
|
72 |
||
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
73 |
chunk_start = bytestream2_tell(&ri->gb); |
74 |
xpos = ypos = 0; |
|
75 |
while (bytestream2_tell(&ri->gb) < chunk_start + chunk_size) { |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
76 |
for (yp = ypos; yp < ypos + 16; yp += 8) |
77 |
for (xp = xpos; xp < xpos + 16; xp += 8) { |
|
78 |
if (vqflg_pos < 0) { |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
79 |
vqflg = bytestream2_get_le16(&ri->gb); |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
80 |
vqflg_pos = 7; |
81 |
}
|
|
82 |
vqid = (vqflg >> (vqflg_pos * 2)) & 0x3; |
|
83 |
frame_stats[0][vqid]++; |
|
84 |
vqflg_pos--; |
|
85 |
||
86 |
switch(vqid) { |
|
87 |
case RoQ_ID_MOT: |
|
88 |
break; |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
89 |
case RoQ_ID_FCC: { |
90 |
int byte = bytestream2_get_byte(&ri->gb); |
|
91 |
mx = 8 - (byte >> 4) - ((signed char) (chunk_arg >> 8)); |
|
92 |
my = 8 - (byte & 0xf) - ((signed char) chunk_arg); |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
93 |
ff_apply_motion_8x8(ri, xp, yp, mx, my); |
94 |
break; |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
95 |
}
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
96 |
case RoQ_ID_SLD: |
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
97 |
qcell = ri->cb4x4 + bytestream2_get_byte(&ri->gb); |
1.1.11
by Reinhard Tartler
Import upstream version 0.8.99-1537-gacb2c79 |
98 |
ff_apply_vector_4x4(ri, xp, yp, ri->cb2x2 + qcell->idx[0]); |
99 |
ff_apply_vector_4x4(ri, xp + 4, yp, ri->cb2x2 + qcell->idx[1]); |
|
100 |
ff_apply_vector_4x4(ri, xp, yp + 4, ri->cb2x2 + qcell->idx[2]); |
|
101 |
ff_apply_vector_4x4(ri, xp + 4, yp + 4, ri->cb2x2 + qcell->idx[3]); |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
102 |
break; |
103 |
case RoQ_ID_CCC: |
|
104 |
for (k = 0; k < 4; k++) { |
|
105 |
x = xp; y = yp; |
|
106 |
if(k & 0x01) x += 4; |
|
107 |
if(k & 0x02) y += 4; |
|
108 |
||
109 |
if (vqflg_pos < 0) { |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
110 |
vqflg = bytestream2_get_le16(&ri->gb); |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
111 |
vqflg_pos = 7; |
112 |
}
|
|
113 |
vqid = (vqflg >> (vqflg_pos * 2)) & 0x3; |
|
114 |
frame_stats[1][vqid]++; |
|
115 |
vqflg_pos--; |
|
116 |
switch(vqid) { |
|
117 |
case RoQ_ID_MOT: |
|
118 |
break; |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
119 |
case RoQ_ID_FCC: { |
120 |
int byte = bytestream2_get_byte(&ri->gb); |
|
121 |
mx = 8 - (byte >> 4) - ((signed char) (chunk_arg >> 8)); |
|
122 |
my = 8 - (byte & 0xf) - ((signed char) chunk_arg); |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
123 |
ff_apply_motion_4x4(ri, x, y, mx, my); |
124 |
break; |
|
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
125 |
}
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
126 |
case RoQ_ID_SLD: |
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
127 |
qcell = ri->cb4x4 + bytestream2_get_byte(&ri->gb); |
1.1.11
by Reinhard Tartler
Import upstream version 0.8.99-1537-gacb2c79 |
128 |
ff_apply_vector_2x2(ri, x, y, ri->cb2x2 + qcell->idx[0]); |
129 |
ff_apply_vector_2x2(ri, x + 2, y, ri->cb2x2 + qcell->idx[1]); |
|
130 |
ff_apply_vector_2x2(ri, x, y + 2, ri->cb2x2 + qcell->idx[2]); |
|
131 |
ff_apply_vector_2x2(ri, x + 2, y + 2, ri->cb2x2 + qcell->idx[3]); |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
132 |
break; |
133 |
case RoQ_ID_CCC: |
|
1.1.11
by Reinhard Tartler
Import upstream version 0.8.99-1537-gacb2c79 |
134 |
ff_apply_vector_2x2(ri, x, y, ri->cb2x2 + bytestream2_get_byte(&ri->gb)); |
135 |
ff_apply_vector_2x2(ri, x + 2, y, ri->cb2x2 + bytestream2_get_byte(&ri->gb)); |
|
136 |
ff_apply_vector_2x2(ri, x, y + 2, ri->cb2x2 + bytestream2_get_byte(&ri->gb)); |
|
137 |
ff_apply_vector_2x2(ri, x + 2, y + 2, ri->cb2x2 + bytestream2_get_byte(&ri->gb)); |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
138 |
break; |
139 |
}
|
|
140 |
}
|
|
141 |
break; |
|
142 |
default: |
|
143 |
av_log(ri->avctx, AV_LOG_ERROR, "Unknown vq code: %d\n", vqid); |
|
144 |
}
|
|
145 |
}
|
|
146 |
||
147 |
xpos += 16; |
|
148 |
if (xpos >= ri->width) { |
|
149 |
xpos -= ri->width; |
|
150 |
ypos += 16; |
|
151 |
}
|
|
152 |
if(ypos >= ri->height) |
|
153 |
break; |
|
154 |
}
|
|
155 |
}
|
|
156 |
||
157 |
||
158 |
static av_cold int roq_decode_init(AVCodecContext *avctx) |
|
159 |
{
|
|
160 |
RoqContext *s = avctx->priv_data; |
|
161 |
||
162 |
s->avctx = avctx; |
|
1.1.16
by Reinhard Tartler
Import upstream version 9.3 |
163 |
|
164 |
if (avctx->width % 16 || avctx->height % 16) { |
|
165 |
av_log(avctx, AV_LOG_ERROR, |
|
166 |
"Dimensions must be a multiple of 16\n"); |
|
167 |
return AVERROR_PATCHWELCOME; |
|
168 |
}
|
|
169 |
||
1
by Reinhard Tartler
Import upstream version 0.6.2 |
170 |
s->width = avctx->width; |
171 |
s->height = avctx->height; |
|
1.1.23
by Reinhard Tartler
Import upstream version 10~alpha1 |
172 |
|
173 |
s->last_frame = av_frame_alloc(); |
|
174 |
s->current_frame = av_frame_alloc(); |
|
175 |
if (!s->current_frame || !s->last_frame) { |
|
176 |
av_frame_free(&s->current_frame); |
|
177 |
av_frame_free(&s->last_frame); |
|
178 |
return AVERROR(ENOMEM); |
|
179 |
}
|
|
180 |
||
1.1.12
by Reinhard Tartler
Import upstream version 9~beta1 |
181 |
avctx->pix_fmt = AV_PIX_FMT_YUV444P; |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
182 |
|
183 |
return 0; |
|
184 |
}
|
|
185 |
||
186 |
static int roq_decode_frame(AVCodecContext *avctx, |
|
1.1.14
by Reinhard Tartler
Import upstream version 9~beta3 |
187 |
void *data, int *got_frame, |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
188 |
AVPacket *avpkt) |
189 |
{
|
|
190 |
const uint8_t *buf = avpkt->data; |
|
191 |
int buf_size = avpkt->size; |
|
192 |
RoqContext *s = avctx->priv_data; |
|
193 |
int copy= !s->current_frame->data[0]; |
|
1.1.23
by Reinhard Tartler
Import upstream version 10~alpha1 |
194 |
int ret; |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
195 |
|
1.1.23
by Reinhard Tartler
Import upstream version 10~alpha1 |
196 |
if ((ret = ff_reget_buffer(avctx, s->current_frame)) < 0) { |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
197 |
av_log(avctx, AV_LOG_ERROR, " RoQ: get_buffer() failed\n"); |
1.1.23
by Reinhard Tartler
Import upstream version 10~alpha1 |
198 |
return ret; |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
199 |
}
|
200 |
||
201 |
if(copy) |
|
202 |
av_picture_copy((AVPicture*)s->current_frame, (AVPicture*)s->last_frame, |
|
203 |
avctx->pix_fmt, avctx->width, avctx->height); |
|
204 |
||
1.1.10
by Reinhard Tartler
Import upstream version 0.8.1 |
205 |
bytestream2_init(&s->gb, buf, buf_size); |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
206 |
roqvideo_decode_frame(s); |
207 |
||
1.1.23
by Reinhard Tartler
Import upstream version 10~alpha1 |
208 |
if ((ret = av_frame_ref(data, s->current_frame)) < 0) |
209 |
return ret; |
|
1.1.14
by Reinhard Tartler
Import upstream version 9~beta3 |
210 |
*got_frame = 1; |
1
by Reinhard Tartler
Import upstream version 0.6.2 |
211 |
|
212 |
/* shuffle frames */
|
|
213 |
FFSWAP(AVFrame *, s->current_frame, s->last_frame); |
|
214 |
||
215 |
return buf_size; |
|
216 |
}
|
|
217 |
||
218 |
static av_cold int roq_decode_end(AVCodecContext *avctx) |
|
219 |
{
|
|
220 |
RoqContext *s = avctx->priv_data; |
|
221 |
||
1.1.23
by Reinhard Tartler
Import upstream version 10~alpha1 |
222 |
av_frame_free(&s->current_frame); |
223 |
av_frame_free(&s->last_frame); |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
224 |
|
225 |
return 0; |
|
226 |
}
|
|
227 |
||
1.1.1
by Reinhard Tartler
Import upstream version 0.7~b1 |
228 |
AVCodec ff_roq_decoder = { |
1.2.1
by Reinhard Tartler
Import upstream version 0.8~beta1 |
229 |
.name = "roqvideo", |
1.1.23
by Reinhard Tartler
Import upstream version 10~alpha1 |
230 |
.long_name = NULL_IF_CONFIG_SMALL("id RoQ video"), |
1.2.1
by Reinhard Tartler
Import upstream version 0.8~beta1 |
231 |
.type = AVMEDIA_TYPE_VIDEO, |
1.1.12
by Reinhard Tartler
Import upstream version 9~beta1 |
232 |
.id = AV_CODEC_ID_ROQ, |
1.2.1
by Reinhard Tartler
Import upstream version 0.8~beta1 |
233 |
.priv_data_size = sizeof(RoqContext), |
234 |
.init = roq_decode_init, |
|
235 |
.close = roq_decode_end, |
|
236 |
.decode = roq_decode_frame, |
|
237 |
.capabilities = CODEC_CAP_DR1, |
|
1
by Reinhard Tartler
Import upstream version 0.6.2 |
238 |
};
|