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 <stdint.h>
20
21#include "config.h"
22
23#include "libavutil/common.h"
24#include "libavutil/intreadwrite.h"
25#include "libavutil/log.h"
26#include "libavutil/pixdesc.h"
27#include "avcodec.h"
28#include "dv_profile.h"
29#include "dv_profile_internal.h"
30
31#if CONFIG_DVPROFILE
32
33static 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 },
39
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 },
45};
46
47static 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},
54
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},
61};
62
63/* macroblock bit budgets */
64static const uint8_t block_sizes_dv2550[8] = {
65    112, 112, 112, 112, 80, 80, 0, 0,
66};
67
68static const uint8_t block_sizes_dv100[8] = {
69    80, 80, 80, 80, 80, 80, 64, 64,
70};
71
72static const AVDVProfile dv_profiles[] = {
73    { .dsf = 0,
74      .video_stype = 0x0,
75      .frame_size = 120000,        /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
76      .difseg_size = 10,
77      .n_difchan = 1,
78      .time_base = { 1001, 30000 },
79      .ltc_divisor = 30,
80      .height = 480,
81      .width = 720,
82      .sar = {{8, 9}, {32, 27}},
83      .pix_fmt = AV_PIX_FMT_YUV411P,
84      .bpm = 6,
85      .block_sizes = block_sizes_dv2550,
86      .audio_stride = 90,
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,
90    },
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    },
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    },
127    { .dsf = 0,
128      .video_stype = 0x4,
129      .frame_size = 240000,        /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
130      .difseg_size = 10,           /* also known as "DVCPRO50" */
131      .n_difchan = 2,
132      .time_base = { 1001, 30000 },
133      .ltc_divisor = 30,
134      .height = 480,
135      .width = 720,
136      .sar = {{8, 9}, {32, 27}},
137      .pix_fmt = AV_PIX_FMT_YUV422P,
138      .bpm = 6,
139      .block_sizes = block_sizes_dv2550,
140      .audio_stride = 90,
141      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
142      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
143      .audio_shuffle = dv_audio_shuffle525,
144    },
145    { .dsf = 1,
146      .video_stype = 0x4,
147      .frame_size = 288000,        /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
148      .difseg_size = 12,           /* also known as "DVCPRO50" */
149      .n_difchan = 2,
150      .time_base = { 1, 25 },
151      .ltc_divisor = 25,
152      .height = 576,
153      .width = 720,
154      .sar = {{16, 15}, {64, 45}},
155      .pix_fmt = AV_PIX_FMT_YUV422P,
156      .bpm = 6,
157      .block_sizes = block_sizes_dv2550,
158      .audio_stride = 108,
159      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
160      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
161      .audio_shuffle = dv_audio_shuffle625,
162    },
163    { .dsf = 0,
164      .video_stype = 0x14,
165      .frame_size = 480000,        /* SMPTE-370M - 1080i60 100 Mbps */
166      .difseg_size = 10,           /* also known as "DVCPRO HD" */
167      .n_difchan = 4,
168      .time_base = { 1001, 30000 },
169      .ltc_divisor = 30,
170      .height = 1080,
171      .width = 1280,
172      .sar = {{1, 1}, {3, 2}},
173      .pix_fmt = AV_PIX_FMT_YUV422P,
174      .bpm = 8,
175      .block_sizes = block_sizes_dv100,
176      .audio_stride = 90,
177      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
178      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
179      .audio_shuffle = dv_audio_shuffle525,
180    },
181    { .dsf = 1,
182      .video_stype = 0x14,
183      .frame_size = 576000,        /* SMPTE-370M - 1080i50 100 Mbps */
184      .difseg_size = 12,           /* also known as "DVCPRO HD" */
185      .n_difchan = 4,
186      .time_base = { 1, 25 },
187      .ltc_divisor = 25,
188      .height = 1080,
189      .width = 1440,
190      .sar = {{1, 1}, {4, 3}},
191      .pix_fmt = AV_PIX_FMT_YUV422P,
192      .bpm = 8,
193      .block_sizes = block_sizes_dv100,
194      .audio_stride = 108,
195      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
196      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
197      .audio_shuffle = dv_audio_shuffle625,
198    },
199    { .dsf = 0,
200      .video_stype = 0x18,
201      .frame_size = 240000,        /* SMPTE-370M - 720p60 100 Mbps */
202      .difseg_size = 10,           /* also known as "DVCPRO HD" */
203      .n_difchan = 2,
204      .time_base = { 1001, 60000 },
205      .ltc_divisor = 60,
206      .height = 720,
207      .width = 960,
208      .sar = {{1, 1}, {4, 3}},
209      .pix_fmt = AV_PIX_FMT_YUV422P,
210      .bpm = 8,
211      .block_sizes = block_sizes_dv100,
212      .audio_stride = 90,
213      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
214      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
215      .audio_shuffle = dv_audio_shuffle525,
216    },
217    { .dsf = 1,
218      .video_stype = 0x18,
219      .frame_size = 288000,        /* SMPTE-370M - 720p50 100 Mbps */
220      .difseg_size = 12,           /* also known as "DVCPRO HD" */
221      .n_difchan = 2,
222      .time_base = { 1, 50 },
223      .ltc_divisor = 50,
224      .height = 720,
225      .width = 960,
226      .sar = {{1, 1}, {4, 3}},
227      .pix_fmt = AV_PIX_FMT_YUV422P,
228      .bpm = 8,
229      .block_sizes = block_sizes_dv100,
230      .audio_stride = 90,
231      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
232      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
233      .audio_shuffle = dv_audio_shuffle625,
234    },
235    { .dsf = 1,
236      .video_stype = 0x1,
237      .frame_size = 144000,        /* IEC 61883-5 - 625/50 (PAL) */
238      .difseg_size = 12,
239      .n_difchan = 1,
240      .time_base = { 1, 25 },
241      .ltc_divisor = 25,
242      .height = 576,
243      .width = 720,
244      .sar = {{16, 15}, {64, 45}},
245      .pix_fmt = AV_PIX_FMT_YUV420P,
246      .bpm = 6,
247      .block_sizes = block_sizes_dv2550,
248      .audio_stride = 108,
249      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
250      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
251      .audio_shuffle = dv_audio_shuffle625,
252    }
253};
254
255void ff_dv_print_profiles(void *logctx, int loglevel)
256{
257    int i;
258    for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
259        const AVDVProfile *p = &dv_profiles[i];
260        av_log(logctx, loglevel, "Frame size: %dx%d; pixel format: %s, "
261               "framerate: %d/%d\n", p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
262               p->time_base.den, p->time_base.num);
263    }
264}
265
266#endif /* CONFIG_DVPROFILE */
267
268const AVDVProfile* avpriv_dv_frame_profile2(AVCodecContext* codec, const AVDVProfile *sys,
269                                       const uint8_t* frame, unsigned buf_size)
270{
271#if CONFIG_DVPROFILE
272    int i, dsf, stype;
273
274    if(buf_size < DV_PROFILE_BYTES)
275        return NULL;
276
277    dsf = (frame[3] & 0x80) >> 7;
278    stype = frame[80 * 5 + 48 + 3] & 0x1f;
279
280    /* 576i50 25Mbps 4:1:1 is a special case */
281    if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) ||
282        (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576)) {
283        return &dv_profiles[2];
284    }
285
286    if(   stype == 0
287       && codec
288       && (codec->codec_tag==AV_RL32("dvsd") || codec->codec_tag==AV_RL32("CDVC"))
289       && codec->coded_width ==720
290       && codec->coded_height==576)
291        return &dv_profiles[1];
292
293    for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
294        if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
295            return &dv_profiles[i];
296
297    /* check if old sys matches and assumes corrupted input */
298    if (sys && buf_size == sys->frame_size)
299        return sys;
300
301    /* hack for trac issue #217, dv files created with QuickTime 3 */
302    if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
303        return &dv_profiles[dsf];
304#endif
305
306    return NULL;
307}
308
309const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
310                                       const uint8_t* frame, unsigned buf_size)
311{
312    return avpriv_dv_frame_profile2(NULL, sys, frame, buf_size);
313}
314
315const AVDVProfile *av_dv_codec_profile(int width, int height,
316                                       enum AVPixelFormat pix_fmt)
317{
318#if CONFIG_DVPROFILE
319    int i;
320
321    for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
322       if (height  == dv_profiles[i].height  &&
323           pix_fmt == dv_profiles[i].pix_fmt &&
324           width   == dv_profiles[i].width)
325           return &dv_profiles[i];
326#endif
327
328    return NULL;
329}
330
331#if LIBAVCODEC_VERSION_MAJOR < 56
332const AVDVProfile *avpriv_dv_frame_profile(const AVDVProfile *sys,
333                                         const uint8_t* frame, unsigned buf_size)
334{
335    return av_dv_frame_profile(sys, frame, buf_size);
336}
337
338const AVDVProfile *avpriv_dv_codec_profile(AVCodecContext *codec)
339{
340    if (codec->coded_width || codec->coded_height) {
341        return av_dv_codec_profile(codec->coded_width, codec->coded_height, codec->pix_fmt);
342    } else
343        return av_dv_codec_profile(codec->width, codec->height, codec->pix_fmt);
344}
345#endif
346