2 * This file is part of Libav.
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.
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.
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
23 #include "libavutil/common.h"
24 #include "libavutil/log.h"
25 #include "libavutil/pixdesc.h"
28 #include "dv_profile.h"
29 #include "dv_profile_internal.h"
33 static const uint8_t dv_audio_shuffle525[10][9] = {
34 { 0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
35 { 6, 36, 66, 26, 56, 86, 16, 46, 76 },
36 { 12, 42, 72, 2, 32, 62, 22, 52, 82 },
37 { 18, 48, 78, 8, 38, 68, 28, 58, 88 },
38 { 24, 54, 84, 14, 44, 74, 4, 34, 64 },
40 { 1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
41 { 7, 37, 67, 27, 57, 87, 17, 47, 77 },
42 { 13, 43, 73, 3, 33, 63, 23, 53, 83 },
43 { 19, 49, 79, 9, 39, 69, 29, 59, 89 },
44 { 25, 55, 85, 15, 45, 75, 5, 35, 65 },
47 static const uint8_t dv_audio_shuffle625[12][9] = {
48 { 0, 36, 72, 26, 62, 98, 16, 52, 88 }, /* 1st channel */
49 { 6, 42, 78, 32, 68, 104, 22, 58, 94 },
50 { 12, 48, 84, 2, 38, 74, 28, 64, 100 },
51 { 18, 54, 90, 8, 44, 80, 34, 70, 106 },
52 { 24, 60, 96, 14, 50, 86, 4, 40, 76 },
53 { 30, 66, 102, 20, 56, 92, 10, 46, 82 },
55 { 1, 37, 73, 27, 63, 99, 17, 53, 89 }, /* 2nd channel */
56 { 7, 43, 79, 33, 69, 105, 23, 59, 95 },
57 { 13, 49, 85, 3, 39, 75, 29, 65, 101 },
58 { 19, 55, 91, 9, 45, 81, 35, 71, 107 },
59 { 25, 61, 97, 15, 51, 87, 5, 41, 77 },
60 { 31, 67, 103, 21, 57, 93, 11, 47, 83 },
63 /* macroblock bit budgets */
64 static const uint8_t block_sizes_dv2550[8] = {
65 112, 112, 112, 112, 80, 80, 0, 0,
68 static const uint8_t block_sizes_dv100[8] = {
69 80, 80, 80, 80, 80, 80, 64, 64,
72 static const AVDVProfile dv_profiles[] = {
75 .frame_size = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
78 .time_base = { 1001, 30000 },
82 .sar = { { 8, 9 }, { 32, 27 } },
83 .pix_fmt = AV_PIX_FMT_YUV411P,
85 .block_sizes = block_sizes_dv2550,
87 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
88 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
89 .audio_shuffle = dv_audio_shuffle525, },
92 .frame_size = 144000, /* IEC 61834 - 625/50 (PAL) */
95 .time_base = { 1, 25 },
99 .sar = { { 16, 15 }, { 64, 45 } },
100 .pix_fmt = AV_PIX_FMT_YUV420P,
102 .block_sizes = block_sizes_dv2550,
104 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
105 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
106 .audio_shuffle = dv_audio_shuffle625, },
109 .frame_size = 144000, /* SMPTE-314M - 625/50 (PAL) */
112 .time_base = { 1, 25 },
116 .sar = { { 16, 15 }, { 64, 45 } },
117 .pix_fmt = AV_PIX_FMT_YUV411P,
119 .block_sizes = block_sizes_dv2550,
121 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
122 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
123 .audio_shuffle = dv_audio_shuffle625, },
126 .frame_size = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
127 .difseg_size = 10, /* also known as "DVCPRO50" */
129 .time_base = { 1001, 30000 },
133 .sar = { { 8, 9 }, { 32, 27 } },
134 .pix_fmt = AV_PIX_FMT_YUV422P,
136 .block_sizes = block_sizes_dv2550,
138 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
139 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
140 .audio_shuffle = dv_audio_shuffle525, },
143 .frame_size = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
144 .difseg_size = 12, /* also known as "DVCPRO50" */
146 .time_base = { 1, 25 },
150 .sar = { { 16, 15 }, { 64, 45 } },
151 .pix_fmt = AV_PIX_FMT_YUV422P,
153 .block_sizes = block_sizes_dv2550,
155 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
156 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
157 .audio_shuffle = dv_audio_shuffle625, },
160 .frame_size = 480000, /* SMPTE-370M - 1080i60 100 Mbps */
161 .difseg_size = 10, /* also known as "DVCPRO HD" */
163 .time_base = { 1001, 30000 },
167 .sar = { { 1, 1 }, { 3, 2 } },
168 .pix_fmt = AV_PIX_FMT_YUV422P,
170 .block_sizes = block_sizes_dv100,
172 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
173 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
174 .audio_shuffle = dv_audio_shuffle525, },
177 .frame_size = 576000, /* SMPTE-370M - 1080i50 100 Mbps */
178 .difseg_size = 12, /* also known as "DVCPRO HD" */
180 .time_base = { 1, 25 },
184 .sar = { { 1, 1 }, { 4, 3 } },
185 .pix_fmt = AV_PIX_FMT_YUV422P,
187 .block_sizes = block_sizes_dv100,
189 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
190 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
191 .audio_shuffle = dv_audio_shuffle625, },
194 .frame_size = 240000, /* SMPTE-370M - 720p60 100 Mbps */
195 .difseg_size = 10, /* also known as "DVCPRO HD" */
197 .time_base = { 1001, 60000 },
201 .sar = { { 1, 1 }, { 4, 3 } },
202 .pix_fmt = AV_PIX_FMT_YUV422P,
204 .block_sizes = block_sizes_dv100,
206 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
207 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
208 .audio_shuffle = dv_audio_shuffle525, },
211 .frame_size = 288000, /* SMPTE-370M - 720p50 100 Mbps */
212 .difseg_size = 12, /* also known as "DVCPRO HD" */
214 .time_base = { 1, 50 },
218 .sar = { { 1, 1 }, { 4, 3 } },
219 .pix_fmt = AV_PIX_FMT_YUV422P,
221 .block_sizes = block_sizes_dv100,
223 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
224 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
225 .audio_shuffle = dv_audio_shuffle625, },
228 .frame_size = 144000, /* IEC 61883-5 - 625/50 (PAL) */
231 .time_base = { 1, 25 },
235 .sar = { { 16, 15 }, { 64, 45 } },
236 .pix_fmt = AV_PIX_FMT_YUV420P,
238 .block_sizes = block_sizes_dv2550,
240 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
241 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
242 .audio_shuffle = dv_audio_shuffle625, }
245 void ff_dv_print_profiles(void *logctx, int loglevel)
248 for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
249 const AVDVProfile *p = &dv_profiles[i];
250 av_log(logctx, loglevel,
251 "Frame size: %dx%d; pixel format: %s, framerate: %d/%d\n",
252 p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
253 p->time_base.den, p->time_base.num);
257 #endif /* CONFIG_DVPROFILE */
259 const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
260 const uint8_t *frame, unsigned buf_size)
265 if (buf_size < 80 * 5 + 48 + 4)
268 dsf = (frame[3] & 0x80) >> 7;
269 stype = frame[80 * 5 + 48 + 3] & 0x1f;
271 /* 576i50 25Mbps 4:1:1 is a special case */
272 if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */)
273 return &dv_profiles[2];
275 for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
276 if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
277 return &dv_profiles[i];
279 /* check if old sys matches and assumes corrupted input */
280 if (sys && buf_size == sys->frame_size)
287 const AVDVProfile *av_dv_codec_profile(int width, int height,
288 enum AVPixelFormat pix_fmt)
293 for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
294 if (height == dv_profiles[i].height &&
295 pix_fmt == dv_profiles[i].pix_fmt &&
296 width == dv_profiles[i].width)
297 return &dv_profiles[i];