55 static void write_header_block(unsigned char* target, int ds, int isPAL)  in write_header_block()  argument
57 	target[0] = 0x1f; /* header magic */  in write_header_block()
58 	target[1] = 0x07 | (ds << 4);  in write_header_block()
59 	target[2] = 0x00;  in write_header_block()
61 	target[3] = ( isPAL ? 0xbf : 0x3f);  in write_header_block()
62 	target[4] = 0x68; /* FIXME ? */  in write_header_block()
63 	target[5] = 0x78; /* FIXME ? */  in write_header_block()
64 	target[6] = 0x78; /* FIXME ? */  in write_header_block()
65 	target[7] = 0x78; /* FIXME ? */  in write_header_block()
67 	memset(target + 8, 0xff, 80 - 8);  in write_header_block()
70 static inline void write_bcd(unsigned char* target, int val)  in write_bcd()  argument
72 	*target = ((val / 10) << 4) + (val % 10);  in write_bcd()
75 static void write_timecode_13(unsigned char* target, struct tm * now, int frame,  in write_timecode_13()  argument
78 	target[0] = 0x13;  in write_timecode_13()
79 	write_bcd(target+1, frame % (isPAL ? 25 : 30));  in write_timecode_13()
80 	write_bcd(target+2, now->tm_sec);  in write_timecode_13()
81 	write_bcd(target+3, now->tm_min);  in write_timecode_13()
82 	write_bcd(target+4, now->tm_hour);  in write_timecode_13()
89 static void write_timecode_60(unsigned char* target, struct tm * now, int isPAL)  in write_timecode_60()  argument
91 	target[0] = 0x60;  in write_timecode_60()
92 	target[1] = 0xff;  in write_timecode_60()
93 	target[2] = 0xff;  in write_timecode_60()
94 	target[3] = isPAL ? 0x20 : 0x00;  in write_timecode_60()
95 	target[4] = 0xff;  in write_timecode_60()
98 static void write_timecode_61(unsigned char* target, struct tm * now,  in write_timecode_61()  argument
101 	target[0] = 0x61; /* FIXME: What's this? */  in write_timecode_61()
103 	target[1] = 0x33;  in write_timecode_61()
104 	target[2] = 0xc8 | (is16x9 ? 0x7 : 0x0);  in write_timecode_61()
105 	target[3] = 0xfd;  in write_timecode_61()
107 	target[4] = 0xff;  in write_timecode_61()
110 static void write_timecode_62(unsigned char* target, struct tm * now)  in write_timecode_62()  argument
112 	target[0] = 0x62;  in write_timecode_62()
113 	target[1] = 0xff;  in write_timecode_62()
114 	write_bcd(target + 2, now->tm_mday);  in write_timecode_62()
115 	write_bcd(target + 3, now->tm_mon+1);  in write_timecode_62()
116 	write_bcd(target + 4, now->tm_year % 100);  in write_timecode_62()
119 static void write_timecode_63(unsigned char* target, struct tm * now)  in write_timecode_63()  argument
121 	target[0] = 0x63;  in write_timecode_63()
122 	target[1] = 0xff;  in write_timecode_63()
123 	write_bcd(target + 2, now->tm_sec);  in write_timecode_63()
124 	write_bcd(target + 3, now->tm_min);  in write_timecode_63()
125 	write_bcd(target + 4, now->tm_hour);  in write_timecode_63()
128 static void write_subcode_blocks(unsigned char* target, int ds, int frame,   in write_subcode_blocks()  argument
133 	memset(target, 0xff, 2*80);  in write_subcode_blocks()
135 	target[0] = 0x3f; /* subcode magic */  in write_subcode_blocks()
136 	target[1] = 0x07 | (ds << 4);  in write_subcode_blocks()
137 	target[2] = 0x00;  in write_subcode_blocks()
139 	target[80 + 0] = 0x3f; /* subcode magic */  in write_subcode_blocks()
140 	target[80 + 1] = 0x07 | (ds << 4);  in write_subcode_blocks()
141 	target[80 + 2] = 0x01;  in write_subcode_blocks()
143 	target[5] = target[80 + 5] = 0xff;  in write_subcode_blocks()
146 		target[3] = 0x80 | (block_count >> 8);  in write_subcode_blocks()
147 		target[4] = block_count;  in write_subcode_blocks()
149 		target[80 + 3] = 0x80 | (block_count >> 8);  in write_subcode_blocks()
150 		target[80 + 4] = block_count + 6;  in write_subcode_blocks()
152 		write_timecode_13(target + 6, now, frame, isPAL);  in write_subcode_blocks()
153 		write_timecode_13(target + 80 + 6, now, frame, isPAL);  in write_subcode_blocks()
155 		write_timecode_62(target + 6 + 8, now);  in write_subcode_blocks()
156 		write_timecode_62(target + 80 + 6 + 8, now);  in write_subcode_blocks()
158 		write_timecode_63(target + 6 + 2*8, now);  in write_subcode_blocks()
159 		write_timecode_63(target + 80 + 6 + 2*8, now);  in write_subcode_blocks()
161 		write_timecode_13(target + 6 + 3*8, now, frame, isPAL);  in write_subcode_blocks()
162 		write_timecode_13(target + 80 + 6 + 3*8, now, frame, isPAL);  in write_subcode_blocks()
164 		write_timecode_62(target + 6 + 4*8, now);  in write_subcode_blocks()
165 		write_timecode_62(target + 80 + 6 + 4*8, now);  in write_subcode_blocks()
167 		write_timecode_63(target + 6 + 5*8, now);  in write_subcode_blocks()
168 		write_timecode_63(target + 80 + 6 + 5*8, now);  in write_subcode_blocks()
170 		target[3] = (block_count >> 8);  in write_subcode_blocks()
171 		target[4] = block_count;  in write_subcode_blocks()
173 		target[80 + 3] = (block_count >> 8);  in write_subcode_blocks()
174 		target[80 + 4] = block_count + 6;  in write_subcode_blocks()
181 static void write_vaux_blocks(unsigned char* target, int ds, struct tm* now,  in write_vaux_blocks()  argument
184 	memset(target, 0xff, 3*80);  in write_vaux_blocks()
186 	target[0] = 0x5f; /* vaux magic */  in write_vaux_blocks()
187 	target[1] = 0x07 | (ds << 4);  in write_vaux_blocks()
188 	target[2] = 0x00;  in write_vaux_blocks()
190 	target[0 + 80] = 0x5f; /* vaux magic */  in write_vaux_blocks()
191 	target[1 + 80] = 0x07 | (ds << 4);  in write_vaux_blocks()
192 	target[2 + 80] = 0x01;  in write_vaux_blocks()
194 	target[0 + 2*80] = 0x5f; /* vaux magic */  in write_vaux_blocks()
195 	target[1 + 2*80] = 0x07 | (ds << 4);  in write_vaux_blocks()
196 	target[2 + 2*80] = 0x02;  in write_vaux_blocks()
201 			target[3] = 0x70; /* FIXME: What's this? */  in write_vaux_blocks()
202 			target[4] = 0xc5;  in write_vaux_blocks()
203 			target[5] = 0x41; /* 42 ? */  in write_vaux_blocks()
204 			target[6] = 0x20;  in write_vaux_blocks()
205 			target[7] = 0xff;  in write_vaux_blocks()
206 			target[8] = 0x71;  in write_vaux_blocks()
207 			target[9] = 0xff;  in write_vaux_blocks()
208 			target[10] = 0x7f;  in write_vaux_blocks()
209 			target[11] = 0xff;  in write_vaux_blocks()
210 			target[12] = 0xff;  in write_vaux_blocks()
211 			target[13] = 0x7f;  in write_vaux_blocks()
212 			target[14] = 0xff;  in write_vaux_blocks()
213 			target[15] = 0xff;  in write_vaux_blocks()
214 			target[16] = 0x38;  in write_vaux_blocks()
215 			target[17] = 0x81;  in write_vaux_blocks()
218 		write_timecode_60(target + 3, now, isPAL);  in write_vaux_blocks()
219 		write_timecode_61(target + 3 + 5, now, is16x9);  in write_vaux_blocks()
220 		write_timecode_62(target + 3 + 2*5, now);  in write_vaux_blocks()
221 		write_timecode_63(target + 3 + 3*5, now);  in write_vaux_blocks()
223 	write_timecode_60(target + 2*80+ 48, now, isPAL);  in write_vaux_blocks()
224 	write_timecode_61(target + 2*80+ 48 + 5, now, is16x9);  in write_vaux_blocks()
225 	write_timecode_62(target + 2*80+ 48 + 2*5, now);  in write_vaux_blocks()
226 	write_timecode_63(target + 2*80+ 48 + 3*5, now);  in write_vaux_blocks()
229 static void write_video_headers(unsigned char* target, int frame, int ds)  in write_video_headers()  argument
234 		target += 80;  in write_video_headers()
236 			target[0] = 0x90 | ((frame + 0xb) % 12);  in write_video_headers()
237 			target[1] = 0x07 | (ds << 4);  in write_video_headers()
238 			target[2] = z++;  in write_video_headers()
239 			target += 80;  in write_video_headers()
244 static void write_audio_headers(unsigned char* target, int frame, int ds)  in write_audio_headers()  argument
249 		memset(target, 0xff, 80);  in write_audio_headers()
251 		target[0] = 0x70 | ((frame + 0xb) % 12);  in write_audio_headers()
252 		target[1] = 0x07 | (ds << 4);  in write_audio_headers()
253 		target[2] = z++;  in write_audio_headers()
255 		target += 16 * 80;  in write_audio_headers()
260 void _dv_write_meta_data(unsigned char* target, int frame, int isPAL,   in _dv_write_meta_data()  argument
276 		write_header_block(target, ds, isPAL);  in _dv_write_meta_data()
277 		target +=   1 * 80;  in _dv_write_meta_data()
278 		write_subcode_blocks(target, ds, frame, now_t, isPAL);  in _dv_write_meta_data()
279 		target +=   2 * 80;  in _dv_write_meta_data()
280 		write_vaux_blocks(target, ds, now_t, isPAL, is16x9);  in _dv_write_meta_data()
281 		target +=   3 * 80;  in _dv_write_meta_data()
282 		write_video_headers(target, frame, ds);  in _dv_write_meta_data()
283 		write_audio_headers(target, frame, ds);  in _dv_write_meta_data()
284 		target += 144 * 80;  in _dv_write_meta_data()
301 void dv_encode_metadata(uint8_t *target, int isPAL, int is16x9, time_t *datetime, int frame)  in dv_encode_metadata()  argument
316 			target +=   1 * 80;  in dv_encode_metadata()
317 			write_subcode_blocks(target, ds, frame, &now_t, isPAL);  in dv_encode_metadata()
318 			target +=   2 * 80;  in dv_encode_metadata()
319 			write_vaux_blocks(target, ds, &now_t, isPAL, is16x9);  in dv_encode_metadata()
320 			target +=   3 * 80;  in dv_encode_metadata()
321 			target += 144 * 80;  in dv_encode_metadata()
334 void dv_encode_timecode(uint8_t* target, int isPAL, int frame)  in dv_encode_timecode()  argument
337 	unsigned char* buf = target;  in dv_encode_timecode()