FFmpeg
dv_profile.c
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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 <stddef.h>
22 #include <stdint.h>
23 
24 #include "libavutil/intreadwrite.h"
25 #include "libavutil/log.h"
26 #include "libavutil/macros.h"
27 #include "libavutil/pixdesc.h"
28 
29 #include "avcodec.h"
30 #include "dv_profile.h"
31 #include "dv_profile_internal.h"
32 
33 #if CONFIG_DVPROFILE
34 
35 static const uint8_t dv_audio_shuffle525[10][9] = {
36  { 0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
37  { 6, 36, 66, 26, 56, 86, 16, 46, 76 },
38  { 12, 42, 72, 2, 32, 62, 22, 52, 82 },
39  { 18, 48, 78, 8, 38, 68, 28, 58, 88 },
40  { 24, 54, 84, 14, 44, 74, 4, 34, 64 },
41 
42  { 1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
43  { 7, 37, 67, 27, 57, 87, 17, 47, 77 },
44  { 13, 43, 73, 3, 33, 63, 23, 53, 83 },
45  { 19, 49, 79, 9, 39, 69, 29, 59, 89 },
46  { 25, 55, 85, 15, 45, 75, 5, 35, 65 },
47 };
48 
49 static const uint8_t dv_audio_shuffle625[12][9] = {
50  { 0, 36, 72, 26, 62, 98, 16, 52, 88 }, /* 1st channel */
51  { 6, 42, 78, 32, 68, 104, 22, 58, 94 },
52  { 12, 48, 84, 2, 38, 74, 28, 64, 100 },
53  { 18, 54, 90, 8, 44, 80, 34, 70, 106 },
54  { 24, 60, 96, 14, 50, 86, 4, 40, 76 },
55  { 30, 66, 102, 20, 56, 92, 10, 46, 82 },
56 
57  { 1, 37, 73, 27, 63, 99, 17, 53, 89 }, /* 2nd channel */
58  { 7, 43, 79, 33, 69, 105, 23, 59, 95 },
59  { 13, 49, 85, 3, 39, 75, 29, 65, 101 },
60  { 19, 55, 91, 9, 45, 81, 35, 71, 107 },
61  { 25, 61, 97, 15, 51, 87, 5, 41, 77 },
62  { 31, 67, 103, 21, 57, 93, 11, 47, 83 },
63 };
64 
65 /* macroblock bit budgets */
66 static const uint8_t block_sizes_dv2550[8] = {
67  112, 112, 112, 112, 80, 80, 0, 0,
68 };
69 
70 static const uint8_t block_sizes_dv100[8] = {
71  80, 80, 80, 80, 80, 80, 64, 64,
72 };
73 
74 static const AVDVProfile dv_profiles[] = {
75  { .dsf = 0,
76  .video_stype = 0x0,
77  .frame_size = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
78  .difseg_size = 10,
79  .n_difchan = 1,
80  .time_base = { 1001, 30000 },
81  .ltc_divisor = 30,
82  .height = 480,
83  .width = 720,
84  .sar = { { 8, 9 }, { 32, 27 } },
85  .pix_fmt = AV_PIX_FMT_YUV411P,
86  .bpm = 6,
87  .block_sizes = block_sizes_dv2550,
88  .audio_stride = 90,
89  .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
90  .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
91  .audio_shuffle = dv_audio_shuffle525, },
92  { .dsf = 1,
93  .video_stype = 0x0,
94  .frame_size = 144000, /* IEC 61834 - 625/50 (PAL) */
95  .difseg_size = 12,
96  .n_difchan = 1,
97  .time_base = { 1, 25 },
98  .ltc_divisor = 25,
99  .height = 576,
100  .width = 720,
101  .sar = { { 16, 15 }, { 64, 45 } },
102  .pix_fmt = AV_PIX_FMT_YUV420P,
103  .bpm = 6,
104  .block_sizes = block_sizes_dv2550,
105  .audio_stride = 108,
106  .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
107  .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
108  .audio_shuffle = dv_audio_shuffle625, },
109  { .dsf = 1,
110  .video_stype = 0x0,
111  .frame_size = 144000, /* SMPTE-314M - 625/50 (PAL) */
112  .difseg_size = 12,
113  .n_difchan = 1,
114  .time_base = { 1, 25 },
115  .ltc_divisor = 25,
116  .height = 576,
117  .width = 720,
118  .sar = { { 16, 15 }, { 64, 45 } },
119  .pix_fmt = AV_PIX_FMT_YUV411P,
120  .bpm = 6,
121  .block_sizes = block_sizes_dv2550,
122  .audio_stride = 108,
123  .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
124  .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
125  .audio_shuffle = dv_audio_shuffle625, },
126  { .dsf = 0,
127  .video_stype = 0x4,
128  .frame_size = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
129  .difseg_size = 10, /* also known as "DVCPRO50" */
130  .n_difchan = 2,
131  .time_base = { 1001, 30000 },
132  .ltc_divisor = 30,
133  .height = 480,
134  .width = 720,
135  .sar = { { 8, 9 }, { 32, 27 } },
136  .pix_fmt = AV_PIX_FMT_YUV422P,
137  .bpm = 6,
138  .block_sizes = block_sizes_dv2550,
139  .audio_stride = 90,
140  .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
141  .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
142  .audio_shuffle = dv_audio_shuffle525, },
143  { .dsf = 1,
144  .video_stype = 0x4,
145  .frame_size = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
146  .difseg_size = 12, /* also known as "DVCPRO50" */
147  .n_difchan = 2,
148  .time_base = { 1, 25 },
149  .ltc_divisor = 25,
150  .height = 576,
151  .width = 720,
152  .sar = { { 16, 15 }, { 64, 45 } },
153  .pix_fmt = AV_PIX_FMT_YUV422P,
154  .bpm = 6,
155  .block_sizes = block_sizes_dv2550,
156  .audio_stride = 108,
157  .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
158  .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
159  .audio_shuffle = dv_audio_shuffle625, },
160  { .dsf = 0,
161  .video_stype = 0x14,
162  .frame_size = 480000, /* SMPTE-370M - 1080i60 100 Mbps */
163  .difseg_size = 10, /* also known as "DVCPRO HD" */
164  .n_difchan = 4,
165  .time_base = { 1001, 30000 },
166  .ltc_divisor = 30,
167  .height = 1080,
168  .width = 1280,
169  .sar = { { 1, 1 }, { 3, 2 } },
170  .pix_fmt = AV_PIX_FMT_YUV422P,
171  .bpm = 8,
172  .block_sizes = block_sizes_dv100,
173  .audio_stride = 90,
174  .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
175  .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
176  .audio_shuffle = dv_audio_shuffle525, },
177  { .dsf = 1,
178  .video_stype = 0x14,
179  .frame_size = 576000, /* SMPTE-370M - 1080i50 100 Mbps */
180  .difseg_size = 12, /* also known as "DVCPRO HD" */
181  .n_difchan = 4,
182  .time_base = { 1, 25 },
183  .ltc_divisor = 25,
184  .height = 1080,
185  .width = 1440,
186  .sar = { { 1, 1 }, { 4, 3 } },
187  .pix_fmt = AV_PIX_FMT_YUV422P,
188  .bpm = 8,
189  .block_sizes = block_sizes_dv100,
190  .audio_stride = 108,
191  .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
192  .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
193  .audio_shuffle = dv_audio_shuffle625, },
194  { .dsf = 0,
195  .video_stype = 0x18,
196  .frame_size = 240000, /* SMPTE-370M - 720p60 100 Mbps */
197  .difseg_size = 10, /* also known as "DVCPRO HD" */
198  .n_difchan = 2,
199  .time_base = { 1001, 60000 },
200  .ltc_divisor = 60,
201  .height = 720,
202  .width = 960,
203  .sar = { { 1, 1 }, { 4, 3 } },
204  .pix_fmt = AV_PIX_FMT_YUV422P,
205  .bpm = 8,
206  .block_sizes = block_sizes_dv100,
207  .audio_stride = 90,
208  .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
209  .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
210  .audio_shuffle = dv_audio_shuffle525, },
211  { .dsf = 1,
212  .video_stype = 0x18,
213  .frame_size = 288000, /* SMPTE-370M - 720p50 100 Mbps */
214  .difseg_size = 12, /* also known as "DVCPRO HD" */
215  .n_difchan = 2,
216  .time_base = { 1, 50 },
217  .ltc_divisor = 50,
218  .height = 720,
219  .width = 960,
220  .sar = { { 1, 1 }, { 4, 3 } },
221  .pix_fmt = AV_PIX_FMT_YUV422P,
222  .bpm = 8,
223  .block_sizes = block_sizes_dv100,
224  .audio_stride = 90,
225  .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
226  .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
227  .audio_shuffle = dv_audio_shuffle625, },
228  { .dsf = 1,
229  .video_stype = 0x1,
230  .frame_size = 144000, /* IEC 61883-5 - 625/50 (PAL) */
231  .difseg_size = 12,
232  .n_difchan = 1,
233  .time_base = { 1, 25 },
234  .ltc_divisor = 25,
235  .height = 576,
236  .width = 720,
237  .sar = { { 16, 15 }, { 64, 45 } },
238  .pix_fmt = AV_PIX_FMT_YUV420P,
239  .bpm = 6,
240  .block_sizes = block_sizes_dv2550,
241  .audio_stride = 108,
242  .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
243  .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
244  .audio_shuffle = dv_audio_shuffle625, }
245 };
246 
247 void ff_dv_print_profiles(void *logctx, int loglevel)
248 {
249  int i;
250  for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
251  const AVDVProfile *p = &dv_profiles[i];
252  av_log(logctx, loglevel,
253  "Frame size: %dx%d; pixel format: %s, framerate: %d/%d\n",
254  p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
255  p->time_base.den, p->time_base.num);
256  }
257 }
258 
259 #endif /* CONFIG_DVPROFILE */
260 
261 const AVDVProfile* ff_dv_frame_profile(AVCodecContext* codec, const AVDVProfile *sys,
262  const uint8_t *frame, unsigned buf_size)
263 {
264 #if CONFIG_DVPROFILE
265  int i, dsf, stype, pal;
266 
267  if(buf_size < DV_PROFILE_BYTES)
268  return NULL;
269 
270  dsf = (frame[3] & 0x80) >> 7;
271  stype = frame[80 * 5 + 48 + 3] & 0x1f;
272  pal = !!(frame[80 * 5 + 48 + 3] & 0x20);
273 
274  /* 576i50 25Mbps 4:1:1 is a special case */
275  if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) ||
276  (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576))
277  return &dv_profiles[2];
278 
279  /* hack for trac issues #8333 and #2177, PAL DV files with dsf flag 0 - detect via pal flag and buf_size */
280  if (dsf == 0 && pal == 1 && stype == dv_profiles[1].video_stype && buf_size == dv_profiles[1].frame_size)
281  return &dv_profiles[1];
282 
283  for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
284  if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
285  return &dv_profiles[i];
286 
287  /* check if old sys matches and assumes corrupted input */
288  if (sys && buf_size == sys->frame_size)
289  return sys;
290 
291  /* hack for trac issue #217, dv files created with QuickTime 3 */
292  if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
293  return &dv_profiles[dsf];
294 #endif
295 
296  return NULL;
297 }
298 
299 const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
300  const uint8_t *frame, unsigned buf_size)
301 {
302  return ff_dv_frame_profile(NULL, sys, frame, buf_size);
303 }
304 
305 const AVDVProfile *av_dv_codec_profile(int width, int height,
306  enum AVPixelFormat pix_fmt)
307 {
308 #if CONFIG_DVPROFILE
309  return av_dv_codec_profile2(width, height, pix_fmt, (AVRational){0, 0});
310 #endif
311 
312  return NULL;
313 }
314 
315 const AVDVProfile *av_dv_codec_profile2(int width, int height,
316  enum AVPixelFormat pix_fmt,
317  AVRational frame_rate)
318 {
319  const AVDVProfile *p = NULL;
320 #if CONFIG_DVPROFILE
321  int i;
322  /* frame rate is necessary to select between 720p50 and 720p60 profiles */
323  int invalid_framerate = frame_rate.num == 0 || frame_rate.den == 0;
324 
325  for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
326  if (height == dv_profiles[i].height &&
327  pix_fmt == dv_profiles[i].pix_fmt &&
328  width == dv_profiles[i].width)
329  {
330  if( invalid_framerate || av_div_q(dv_profiles[i].time_base, frame_rate).num == 1 )
331  return &dv_profiles[i];
332 
333  if(!p)
334  p = &dv_profiles[i];
335  }
336 #endif
337 
338  return p;
339 }
340 
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
dv_profile_internal.h
av_div_q
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
Definition: rational.c:88
ff_dv_frame_profile
const AVDVProfile * ff_dv_frame_profile(AVCodecContext *codec, const AVDVProfile *sys, const uint8_t *frame, unsigned buf_size)
Get a DV profile for the provided compressed frame.
Definition: dv_profile.c:261
pixdesc.h
av_dv_codec_profile
const AVDVProfile * av_dv_codec_profile(int width, int height, enum AVPixelFormat pix_fmt)
Get a DV profile for the provided stream parameters.
Definition: dv_profile.c:305
DV_PROFILE_BYTES
#define DV_PROFILE_BYTES
Definition: dv_profile.h:29
ff_dv_print_profiles
void ff_dv_print_profiles(void *logctx, int loglevel)
Print all allowed DV profiles into logctx at specified logging level.
macros.h
AVDVProfile::dsf
int dsf
Definition: dv_profile.h:39
dv_profile.h
AVCodecContext::coded_height
int coded_height
Definition: avcodec.h:636
AVRational::num
int num
Numerator.
Definition: rational.h:59
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
width
#define width
intreadwrite.h
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demux_decode.c:41
frame_size
int frame_size
Definition: mxfenc.c:2311
AVDVProfile::pix_fmt
enum AVPixelFormat pix_fmt
Definition: dv_profile.h:49
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
frame
static AVFrame * frame
Definition: demux_decode.c:54
NULL
#define NULL
Definition: coverity.c:32
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
av_dv_frame_profile
const AVDVProfile * av_dv_frame_profile(const AVDVProfile *sys, const uint8_t *frame, unsigned buf_size)
Get a DV profile for the provided compressed frame.
Definition: dv_profile.c:299
AVDVProfile::height
int height
Definition: dv_profile.h:46
height
#define height
log.h
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:245
AVDVProfile::width
int width
Definition: dv_profile.h:47
avcodec.h
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:92
AVCodecContext
main external API structure.
Definition: avcodec.h:441
AVRational::den
int den
Denominator.
Definition: rational.h:60
AVDVProfile
Definition: dv_profile.h:38
AVDVProfile::time_base
AVRational time_base
Definition: dv_profile.h:44
AVCodecContext::coded_width
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:636
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
AVCodecContext::codec_tag
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:466
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
av_dv_codec_profile2
const AVDVProfile * av_dv_codec_profile2(int width, int height, enum AVPixelFormat pix_fmt, AVRational frame_rate)
Get a DV profile for the provided stream parameters.
Definition: dv_profile.c:315
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2884
AVDVProfile::frame_size
int frame_size
Definition: dv_profile.h:41
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