FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/dv_profile.c
Date: 2021-09-24 20:55:06
Exec Total Coverage
Lines: 24 41 58.5%
Branches: 29 60 48.3%

Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "config.h"
20
21 #include <stdint.h>
22
23 #include "libavutil/common.h"
24 #include "libavutil/intreadwrite.h"
25 #include "libavutil/log.h"
26 #include "libavutil/pixdesc.h"
27
28 #include "avcodec.h"
29 #include "dv_profile.h"
30 #include "dv_profile_internal.h"
31
32 #if CONFIG_DVPROFILE
33
34 static const uint8_t dv_audio_shuffle525[10][9] = {
35 { 0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
36 { 6, 36, 66, 26, 56, 86, 16, 46, 76 },
37 { 12, 42, 72, 2, 32, 62, 22, 52, 82 },
38 { 18, 48, 78, 8, 38, 68, 28, 58, 88 },
39 { 24, 54, 84, 14, 44, 74, 4, 34, 64 },
40
41 { 1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
42 { 7, 37, 67, 27, 57, 87, 17, 47, 77 },
43 { 13, 43, 73, 3, 33, 63, 23, 53, 83 },
44 { 19, 49, 79, 9, 39, 69, 29, 59, 89 },
45 { 25, 55, 85, 15, 45, 75, 5, 35, 65 },
46 };
47
48 static const uint8_t dv_audio_shuffle625[12][9] = {
49 { 0, 36, 72, 26, 62, 98, 16, 52, 88 }, /* 1st channel */
50 { 6, 42, 78, 32, 68, 104, 22, 58, 94 },
51 { 12, 48, 84, 2, 38, 74, 28, 64, 100 },
52 { 18, 54, 90, 8, 44, 80, 34, 70, 106 },
53 { 24, 60, 96, 14, 50, 86, 4, 40, 76 },
54 { 30, 66, 102, 20, 56, 92, 10, 46, 82 },
55
56 { 1, 37, 73, 27, 63, 99, 17, 53, 89 }, /* 2nd channel */
57 { 7, 43, 79, 33, 69, 105, 23, 59, 95 },
58 { 13, 49, 85, 3, 39, 75, 29, 65, 101 },
59 { 19, 55, 91, 9, 45, 81, 35, 71, 107 },
60 { 25, 61, 97, 15, 51, 87, 5, 41, 77 },
61 { 31, 67, 103, 21, 57, 93, 11, 47, 83 },
62 };
63
64 /* macroblock bit budgets */
65 static const uint8_t block_sizes_dv2550[8] = {
66 112, 112, 112, 112, 80, 80, 0, 0,
67 };
68
69 static const uint8_t block_sizes_dv100[8] = {
70 80, 80, 80, 80, 80, 80, 64, 64,
71 };
72
73 static const AVDVProfile dv_profiles[] = {
74 { .dsf = 0,
75 .video_stype = 0x0,
76 .frame_size = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
77 .difseg_size = 10,
78 .n_difchan = 1,
79 .time_base = { 1001, 30000 },
80 .ltc_divisor = 30,
81 .height = 480,
82 .width = 720,
83 .sar = { { 8, 9 }, { 32, 27 } },
84 .pix_fmt = AV_PIX_FMT_YUV411P,
85 .bpm = 6,
86 .block_sizes = block_sizes_dv2550,
87 .audio_stride = 90,
88 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
89 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
90 .audio_shuffle = dv_audio_shuffle525, },
91 { .dsf = 1,
92 .video_stype = 0x0,
93 .frame_size = 144000, /* IEC 61834 - 625/50 (PAL) */
94 .difseg_size = 12,
95 .n_difchan = 1,
96 .time_base = { 1, 25 },
97 .ltc_divisor = 25,
98 .height = 576,
99 .width = 720,
100 .sar = { { 16, 15 }, { 64, 45 } },
101 .pix_fmt = AV_PIX_FMT_YUV420P,
102 .bpm = 6,
103 .block_sizes = block_sizes_dv2550,
104 .audio_stride = 108,
105 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
106 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
107 .audio_shuffle = dv_audio_shuffle625, },
108 { .dsf = 1,
109 .video_stype = 0x0,
110 .frame_size = 144000, /* SMPTE-314M - 625/50 (PAL) */
111 .difseg_size = 12,
112 .n_difchan = 1,
113 .time_base = { 1, 25 },
114 .ltc_divisor = 25,
115 .height = 576,
116 .width = 720,
117 .sar = { { 16, 15 }, { 64, 45 } },
118 .pix_fmt = AV_PIX_FMT_YUV411P,
119 .bpm = 6,
120 .block_sizes = block_sizes_dv2550,
121 .audio_stride = 108,
122 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
123 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
124 .audio_shuffle = dv_audio_shuffle625, },
125 { .dsf = 0,
126 .video_stype = 0x4,
127 .frame_size = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
128 .difseg_size = 10, /* also known as "DVCPRO50" */
129 .n_difchan = 2,
130 .time_base = { 1001, 30000 },
131 .ltc_divisor = 30,
132 .height = 480,
133 .width = 720,
134 .sar = { { 8, 9 }, { 32, 27 } },
135 .pix_fmt = AV_PIX_FMT_YUV422P,
136 .bpm = 6,
137 .block_sizes = block_sizes_dv2550,
138 .audio_stride = 90,
139 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
140 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
141 .audio_shuffle = dv_audio_shuffle525, },
142 { .dsf = 1,
143 .video_stype = 0x4,
144 .frame_size = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
145 .difseg_size = 12, /* also known as "DVCPRO50" */
146 .n_difchan = 2,
147 .time_base = { 1, 25 },
148 .ltc_divisor = 25,
149 .height = 576,
150 .width = 720,
151 .sar = { { 16, 15 }, { 64, 45 } },
152 .pix_fmt = AV_PIX_FMT_YUV422P,
153 .bpm = 6,
154 .block_sizes = block_sizes_dv2550,
155 .audio_stride = 108,
156 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
157 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
158 .audio_shuffle = dv_audio_shuffle625, },
159 { .dsf = 0,
160 .video_stype = 0x14,
161 .frame_size = 480000, /* SMPTE-370M - 1080i60 100 Mbps */
162 .difseg_size = 10, /* also known as "DVCPRO HD" */
163 .n_difchan = 4,
164 .time_base = { 1001, 30000 },
165 .ltc_divisor = 30,
166 .height = 1080,
167 .width = 1280,
168 .sar = { { 1, 1 }, { 3, 2 } },
169 .pix_fmt = AV_PIX_FMT_YUV422P,
170 .bpm = 8,
171 .block_sizes = block_sizes_dv100,
172 .audio_stride = 90,
173 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
174 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
175 .audio_shuffle = dv_audio_shuffle525, },
176 { .dsf = 1,
177 .video_stype = 0x14,
178 .frame_size = 576000, /* SMPTE-370M - 1080i50 100 Mbps */
179 .difseg_size = 12, /* also known as "DVCPRO HD" */
180 .n_difchan = 4,
181 .time_base = { 1, 25 },
182 .ltc_divisor = 25,
183 .height = 1080,
184 .width = 1440,
185 .sar = { { 1, 1 }, { 4, 3 } },
186 .pix_fmt = AV_PIX_FMT_YUV422P,
187 .bpm = 8,
188 .block_sizes = block_sizes_dv100,
189 .audio_stride = 108,
190 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
191 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
192 .audio_shuffle = dv_audio_shuffle625, },
193 { .dsf = 0,
194 .video_stype = 0x18,
195 .frame_size = 240000, /* SMPTE-370M - 720p60 100 Mbps */
196 .difseg_size = 10, /* also known as "DVCPRO HD" */
197 .n_difchan = 2,
198 .time_base = { 1001, 60000 },
199 .ltc_divisor = 60,
200 .height = 720,
201 .width = 960,
202 .sar = { { 1, 1 }, { 4, 3 } },
203 .pix_fmt = AV_PIX_FMT_YUV422P,
204 .bpm = 8,
205 .block_sizes = block_sizes_dv100,
206 .audio_stride = 90,
207 .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
208 .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
209 .audio_shuffle = dv_audio_shuffle525, },
210 { .dsf = 1,
211 .video_stype = 0x18,
212 .frame_size = 288000, /* SMPTE-370M - 720p50 100 Mbps */
213 .difseg_size = 12, /* also known as "DVCPRO HD" */
214 .n_difchan = 2,
215 .time_base = { 1, 50 },
216 .ltc_divisor = 50,
217 .height = 720,
218 .width = 960,
219 .sar = { { 1, 1 }, { 4, 3 } },
220 .pix_fmt = AV_PIX_FMT_YUV422P,
221 .bpm = 8,
222 .block_sizes = block_sizes_dv100,
223 .audio_stride = 90,
224 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
225 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
226 .audio_shuffle = dv_audio_shuffle625, },
227 { .dsf = 1,
228 .video_stype = 0x1,
229 .frame_size = 144000, /* IEC 61883-5 - 625/50 (PAL) */
230 .difseg_size = 12,
231 .n_difchan = 1,
232 .time_base = { 1, 25 },
233 .ltc_divisor = 25,
234 .height = 576,
235 .width = 720,
236 .sar = { { 16, 15 }, { 64, 45 } },
237 .pix_fmt = AV_PIX_FMT_YUV420P,
238 .bpm = 6,
239 .block_sizes = block_sizes_dv2550,
240 .audio_stride = 108,
241 .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
242 .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
243 .audio_shuffle = dv_audio_shuffle625, }
244 };
245
246 void ff_dv_print_profiles(void *logctx, int loglevel)
247 {
248 int i;
249 for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
250 const AVDVProfile *p = &dv_profiles[i];
251 av_log(logctx, loglevel,
252 "Frame size: %dx%d; pixel format: %s, framerate: %d/%d\n",
253 p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
254 p->time_base.den, p->time_base.num);
255 }
256 }
257
258 #endif /* CONFIG_DVPROFILE */
259
260 2105 const AVDVProfile* ff_dv_frame_profile(AVCodecContext* codec, const AVDVProfile *sys,
261 const uint8_t *frame, unsigned buf_size)
262 {
263 #if CONFIG_DVPROFILE
264 int i, dsf, stype, pal;
265
266
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2105 if(buf_size < DV_PROFILE_BYTES)
267 return NULL;
268
269 2105 dsf = (frame[3] & 0x80) >> 7;
270 2105 stype = frame[80 * 5 + 48 + 3] & 0x1f;
271 2105 pal = !!(frame[80 * 5 + 48 + 3] & 0x20);
272
273 /* 576i50 25Mbps 4:1:1 is a special case */
274
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2105 if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) ||
275 (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576))
276 335 return &dv_profiles[2];
277
278 /* hack for trac issues #8333 and #2177, PAL DV files with dsf flag 0 - detect via pal flag and buf_size */
279
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1770 if (dsf == 0 && pal == 1 && stype == dv_profiles[1].video_stype && buf_size == dv_profiles[1].frame_size)
280 return &dv_profiles[1];
281
282
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9452 for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
283
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9452 if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
284 1770 return &dv_profiles[i];
285
286 /* check if old sys matches and assumes corrupted input */
287 if (sys && buf_size == sys->frame_size)
288 return sys;
289
290 /* hack for trac issue #217, dv files created with QuickTime 3 */
291 if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
292 return &dv_profiles[dsf];
293 #endif
294
295 return NULL;
296 }
297
298 1063 const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
299 const uint8_t *frame, unsigned buf_size)
300 {
301 1063 return ff_dv_frame_profile(NULL, sys, frame, buf_size);
302 }
303
304 const AVDVProfile *av_dv_codec_profile(int width, int height,
305 enum AVPixelFormat pix_fmt)
306 {
307 #if CONFIG_DVPROFILE
308 return av_dv_codec_profile2(width, height, pix_fmt, (AVRational){0, 0});
309 #endif
310
311 return NULL;
312 }
313
314 42 const AVDVProfile *av_dv_codec_profile2(int width, int height,
315 enum AVPixelFormat pix_fmt,
316 AVRational frame_rate)
317 {
318 42 const AVDVProfile *p = NULL;
319 #if CONFIG_DVPROFILE
320 int i;
321 /* frame rate is necessary to select between 720p50 and 720p60 profiles */
322
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42 int invalid_framerate = frame_rate.num == 0 || frame_rate.den == 0;
323
324
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205 for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
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205 if (height == dv_profiles[i].height &&
326
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78 pix_fmt == dv_profiles[i].pix_fmt &&
327
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58 width == dv_profiles[i].width)
328 {
329
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50 if( invalid_framerate || av_div_q(dv_profiles[i].time_base, frame_rate).num == 1 )
330 42 return &dv_profiles[i];
331
332
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8 if(!p)
333 8 p = &dv_profiles[i];
334 }
335 #endif
336
337 return p;
338 }
339
340