dv: Split profile handling code into a separate file.
[libav.git] / libavcodec / dv_profile.c
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1/*
2 * This file is part of Libav.
3 *
4 * Libav is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * Libav is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#include <stdint.h>
20
21#include "libavutil/log.h"
22#include "libavutil/pixdesc.h"
23#include "avcodec.h"
24#include "dv_profile.h"
25
26static DVwork_chunk work_chunks_dv25pal [1*12*27];
27static DVwork_chunk work_chunks_dv25pal411[1*12*27];
28static DVwork_chunk work_chunks_dv25ntsc [1*10*27];
29static DVwork_chunk work_chunks_dv50pal [2*12*27];
30static DVwork_chunk work_chunks_dv50ntsc [2*10*27];
31static DVwork_chunk work_chunks_dv100palp [2*12*27];
32static DVwork_chunk work_chunks_dv100ntscp[2*10*27];
33static DVwork_chunk work_chunks_dv100pali [4*12*27];
34static DVwork_chunk work_chunks_dv100ntsci[4*10*27];
35
36static uint32_t dv_idct_factor_sd [2*2*22*64];
37static uint32_t dv_idct_factor_hd1080[2*4*16*64];
38static uint32_t dv_idct_factor_hd720 [2*4*16*64];
39
40static const uint8_t dv_audio_shuffle525[10][9] = {
41 { 0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
42 { 6, 36, 66, 26, 56, 86, 16, 46, 76 },
43 { 12, 42, 72, 2, 32, 62, 22, 52, 82 },
44 { 18, 48, 78, 8, 38, 68, 28, 58, 88 },
45 { 24, 54, 84, 14, 44, 74, 4, 34, 64 },
46
47 { 1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
48 { 7, 37, 67, 27, 57, 87, 17, 47, 77 },
49 { 13, 43, 73, 3, 33, 63, 23, 53, 83 },
50 { 19, 49, 79, 9, 39, 69, 29, 59, 89 },
51 { 25, 55, 85, 15, 45, 75, 5, 35, 65 },
52};
53
54static const uint8_t dv_audio_shuffle625[12][9] = {
55 { 0, 36, 72, 26, 62, 98, 16, 52, 88}, /* 1st channel */
56 { 6, 42, 78, 32, 68, 104, 22, 58, 94},
57 { 12, 48, 84, 2, 38, 74, 28, 64, 100},
58 { 18, 54, 90, 8, 44, 80, 34, 70, 106},
59 { 24, 60, 96, 14, 50, 86, 4, 40, 76},
60 { 30, 66, 102, 20, 56, 92, 10, 46, 82},
61
62 { 1, 37, 73, 27, 63, 99, 17, 53, 89}, /* 2nd channel */
63 { 7, 43, 79, 33, 69, 105, 23, 59, 95},
64 { 13, 49, 85, 3, 39, 75, 29, 65, 101},
65 { 19, 55, 91, 9, 45, 81, 35, 71, 107},
66 { 25, 61, 97, 15, 51, 87, 5, 41, 77},
67 { 31, 67, 103, 21, 57, 93, 11, 47, 83},
68};
69
70/* macroblock bit budgets */
71static const uint8_t block_sizes_dv2550[8] = {
72 112, 112, 112, 112, 80, 80, 0, 0,
73};
74
75static const uint8_t block_sizes_dv100[8] = {
76 80, 80, 80, 80, 80, 80, 64, 64,
77};
78
79static const DVprofile dv_profiles[] = {
80 { .dsf = 0,
81 .video_stype = 0x0,
82 .frame_size = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
83 .difseg_size = 10,
84 .n_difchan = 1,
85 .time_base = { 1001, 30000 },
86 .ltc_divisor = 30,
87 .height = 480,
88 .width = 720,
89 .sar = {{8, 9}, {32, 27}},
90 .work_chunks = &work_chunks_dv25ntsc[0],
91 .idct_factor = &dv_idct_factor_sd[0],
92 .pix_fmt = PIX_FMT_YUV411P,
93 .bpm = 6,
94 .block_sizes = block_sizes_dv2550,
95 .audio_stride = 90,
96 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
97 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
98 .audio_shuffle = dv_audio_shuffle525,
99 },
100 { .dsf = 1,
101 .video_stype = 0x0,
102 .frame_size = 144000, /* IEC 61834 - 625/50 (PAL) */
103 .difseg_size = 12,
104 .n_difchan = 1,
105 .time_base = { 1, 25 },
106 .ltc_divisor = 25,
107 .height = 576,
108 .width = 720,
109 .sar = {{16, 15}, {64, 45}},
110 .work_chunks = &work_chunks_dv25pal[0],
111 .idct_factor = &dv_idct_factor_sd[0],
112 .pix_fmt = PIX_FMT_YUV420P,
113 .bpm = 6,
114 .block_sizes = block_sizes_dv2550,
115 .audio_stride = 108,
116 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
117 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
118 .audio_shuffle = dv_audio_shuffle625,
119 },
120 { .dsf = 1,
121 .video_stype = 0x0,
122 .frame_size = 144000, /* SMPTE-314M - 625/50 (PAL) */
123 .difseg_size = 12,
124 .n_difchan = 1,
125 .time_base = { 1, 25 },
126 .ltc_divisor = 25,
127 .height = 576,
128 .width = 720,
129 .sar = {{16, 15}, {64, 45}},
130 .work_chunks = &work_chunks_dv25pal411[0],
131 .idct_factor = &dv_idct_factor_sd[0],
132 .pix_fmt = PIX_FMT_YUV411P,
133 .bpm = 6,
134 .block_sizes = block_sizes_dv2550,
135 .audio_stride = 108,
136 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
137 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
138 .audio_shuffle = dv_audio_shuffle625,
139 },
140 { .dsf = 0,
141 .video_stype = 0x4,
142 .frame_size = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
143 .difseg_size = 10, /* also known as "DVCPRO50" */
144 .n_difchan = 2,
145 .time_base = { 1001, 30000 },
146 .ltc_divisor = 30,
147 .height = 480,
148 .width = 720,
149 .sar = {{8, 9}, {32, 27}},
150 .work_chunks = &work_chunks_dv50ntsc[0],
151 .idct_factor = &dv_idct_factor_sd[0],
152 .pix_fmt = PIX_FMT_YUV422P,
153 .bpm = 6,
154 .block_sizes = block_sizes_dv2550,
155 .audio_stride = 90,
156 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
157 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
158 .audio_shuffle = dv_audio_shuffle525,
159 },
160 { .dsf = 1,
161 .video_stype = 0x4,
162 .frame_size = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
163 .difseg_size = 12, /* also known as "DVCPRO50" */
164 .n_difchan = 2,
165 .time_base = { 1, 25 },
166 .ltc_divisor = 25,
167 .height = 576,
168 .width = 720,
169 .sar = {{16, 15}, {64, 45}},
170 .work_chunks = &work_chunks_dv50pal[0],
171 .idct_factor = &dv_idct_factor_sd[0],
172 .pix_fmt = PIX_FMT_YUV422P,
173 .bpm = 6,
174 .block_sizes = block_sizes_dv2550,
175 .audio_stride = 108,
176 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
177 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
178 .audio_shuffle = dv_audio_shuffle625,
179 },
180 { .dsf = 0,
181 .video_stype = 0x14,
182 .frame_size = 480000, /* SMPTE-370M - 1080i60 100 Mbps */
183 .difseg_size = 10, /* also known as "DVCPRO HD" */
184 .n_difchan = 4,
185 .time_base = { 1001, 30000 },
186 .ltc_divisor = 30,
187 .height = 1080,
188 .width = 1280,
189 .sar = {{1, 1}, {3, 2}},
190 .work_chunks = &work_chunks_dv100ntsci[0],
191 .idct_factor = &dv_idct_factor_hd1080[0],
192 .pix_fmt = PIX_FMT_YUV422P,
193 .bpm = 8,
194 .block_sizes = block_sizes_dv100,
195 .audio_stride = 90,
196 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
197 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
198 .audio_shuffle = dv_audio_shuffle525,
199 },
200 { .dsf = 1,
201 .video_stype = 0x14,
202 .frame_size = 576000, /* SMPTE-370M - 1080i50 100 Mbps */
203 .difseg_size = 12, /* also known as "DVCPRO HD" */
204 .n_difchan = 4,
205 .time_base = { 1, 25 },
206 .ltc_divisor = 25,
207 .height = 1080,
208 .width = 1440,
209 .sar = {{1, 1}, {4, 3}},
210 .work_chunks = &work_chunks_dv100pali[0],
211 .idct_factor = &dv_idct_factor_hd1080[0],
212 .pix_fmt = PIX_FMT_YUV422P,
213 .bpm = 8,
214 .block_sizes = block_sizes_dv100,
215 .audio_stride = 108,
216 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
217 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
218 .audio_shuffle = dv_audio_shuffle625,
219 },
220 { .dsf = 0,
221 .video_stype = 0x18,
222 .frame_size = 240000, /* SMPTE-370M - 720p60 100 Mbps */
223 .difseg_size = 10, /* also known as "DVCPRO HD" */
224 .n_difchan = 2,
225 .time_base = { 1001, 60000 },
226 .ltc_divisor = 60,
227 .height = 720,
228 .width = 960,
229 .sar = {{1, 1}, {4, 3}},
230 .work_chunks = &work_chunks_dv100ntscp[0],
231 .idct_factor = &dv_idct_factor_hd720[0],
232 .pix_fmt = PIX_FMT_YUV422P,
233 .bpm = 8,
234 .block_sizes = block_sizes_dv100,
235 .audio_stride = 90,
236 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
237 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
238 .audio_shuffle = dv_audio_shuffle525,
239 },
240 { .dsf = 1,
241 .video_stype = 0x18,
242 .frame_size = 288000, /* SMPTE-370M - 720p50 100 Mbps */
243 .difseg_size = 12, /* also known as "DVCPRO HD" */
244 .n_difchan = 2,
245 .time_base = { 1, 50 },
246 .ltc_divisor = 50,
247 .height = 720,
248 .width = 960,
249 .sar = {{1, 1}, {4, 3}},
250 .work_chunks = &work_chunks_dv100palp[0],
251 .idct_factor = &dv_idct_factor_hd720[0],
252 .pix_fmt = PIX_FMT_YUV422P,
253 .bpm = 8,
254 .block_sizes = block_sizes_dv100,
255 .audio_stride = 90,
256 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
257 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
258 .audio_shuffle = dv_audio_shuffle625,
259 },
260 { .dsf = 1,
261 .video_stype = 0x1,
262 .frame_size = 144000, /* IEC 61883-5 - 625/50 (PAL) */
263 .difseg_size = 12,
264 .n_difchan = 1,
265 .time_base = { 1, 25 },
266 .ltc_divisor = 25,
267 .height = 576,
268 .width = 720,
269 .sar = {{16, 15}, {64, 45}},
270 .work_chunks = &work_chunks_dv25pal[0],
271 .idct_factor = &dv_idct_factor_sd[0],
272 .pix_fmt = PIX_FMT_YUV420P,
273 .bpm = 6,
274 .block_sizes = block_sizes_dv2550,
275 .audio_stride = 108,
276 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
277 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
278 .audio_shuffle = dv_audio_shuffle625,
279 }
280};
281
282const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys,
283 const uint8_t* frame, unsigned buf_size)
284{
285 int i, dsf, stype;
286
287 if (buf_size < 80 * 5 + 48 + 4)
288 return NULL;
289
290 dsf = (frame[3] & 0x80) >> 7;
291 stype = frame[80 * 5 + 48 + 3] & 0x1f;
292
293 /* 576i50 25Mbps 4:1:1 is a special case */
294 if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) {
295 return &dv_profiles[2];
296 }
297
298 for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
299 if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
300 return &dv_profiles[i];
301
302 /* check if old sys matches and assumes corrupted input */
303 if (sys && buf_size == sys->frame_size)
304 return sys;
305
306 return NULL;
307}
308
309const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec)
310{
311 int i;
312
313 for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
314 if (codec->height == dv_profiles[i].height &&
315 codec->pix_fmt == dv_profiles[i].pix_fmt &&
316 codec->width == dv_profiles[i].width)
317 return &dv_profiles[i];
318
319 return NULL;
320}
321
322void ff_dv_print_profiles(void *logctx, int loglevel)
323{
324 int i;
325 for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
326 const DVprofile *p = &dv_profiles[i];
327 av_log(logctx, loglevel, "Frame size: %dx%d; pixel format: %s, "
328 "framerate: %d/%d\n", p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
329 p->time_base.den, p->time_base.num);
330 }
331}