FFmpeg
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mxfenc.c
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1 /*
2  * MXF muxer
3  * Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com>
4  * Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /*
24  * References
25  * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
26  * SMPTE 377M MXF File Format Specifications
27  * SMPTE 379M MXF Generic Container
28  * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
29  * SMPTE RP210: SMPTE Metadata Dictionary
30  * SMPTE RP224: Registry of SMPTE Universal Labels
31  */
32 
33 #include <inttypes.h>
34 #include <math.h>
35 #include <time.h>
36 
37 #include "libavutil/opt.h"
38 #include "libavutil/random_seed.h"
39 #include "libavutil/timecode.h"
40 #include "libavutil/avassert.h"
41 #include "libavcodec/bytestream.h"
42 #include "libavcodec/dnxhddata.h"
43 #include "audiointerleave.h"
44 #include "avformat.h"
45 #include "avio_internal.h"
46 #include "internal.h"
47 #include "mxf.h"
48 #include "config.h"
49 
51 
52 #define EDIT_UNITS_PER_BODY 250
53 #define KAG_SIZE 512
54 
55 typedef struct {
56  int local_tag;
59 
60 typedef struct {
62  uint64_t offset;
63  unsigned slice_offset; ///< offset of audio slice
64  uint16_t temporal_ref;
66 
67 typedef struct {
70  int index; ///< index in mxf_essence_container_uls table
71  const UID *codec_ul;
72  int order; ///< interleaving order if dts are equal
73  int interlaced; ///< whether picture is interlaced
74  int field_dominance; ///< tff=1, bff=2
77  AVRational aspect_ratio; ///< display aspect ratio
78  int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
81 
82 typedef struct {
86  void (*write_desc)(AVFormatContext *, AVStream *);
88 
89 static const struct {
90  enum AVCodecID id;
91  int index;
94  { AV_CODEC_ID_PCM_S24LE, 1 },
95  { AV_CODEC_ID_PCM_S16LE, 1 },
96  { AV_CODEC_ID_DVVIDEO, 15 },
97  { AV_CODEC_ID_DNXHD, 24 },
99 };
100 
101 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
102 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
104 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
106 
108  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
109  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
110  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
112  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
113  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
114  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
116  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
117  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
118  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
120  // D-10 625/50 PAL 50mb/s
121  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
122  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
123  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
125  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
126  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
127  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
129  // D-10 525/60 NTSC 50mb/s
130  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
131  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
132  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
134  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
135  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
136  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
138  // D-10 625/50 PAL 40mb/s
139  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
140  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
141  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
143  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
144  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
145  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
147  // D-10 525/60 NTSC 40mb/s
148  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
149  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
150  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
152  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
153  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
154  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
156  // D-10 625/50 PAL 30mb/s
157  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
158  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
159  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
161  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
162  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
163  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
165  // D-10 525/60 NTSC 30mb/s
166  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
167  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
168  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
170  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
171  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
172  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
174  // DV Unknown
175  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
176  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
177  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
179  // DV25 525/60
180  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
181  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
182  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
184  // DV25 625/50
185  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
186  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
187  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
189  // DV50 525/60
190  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
191  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
192  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
194  // DV50 625/50
195  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
196  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
197  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
199  // DV100 1080/60
200  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
201  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
202  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
204  // DV100 1080/50
205  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
206  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
207  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
209  // DV100 720/60
210  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
211  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
212  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
214  // DV100 720/50
215  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
216  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
217  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
219  // DNxHD 1080p 10bit high
220  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
221  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
222  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
224  // DNxHD 1080p 8bit medium
225  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
226  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
227  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
229  // DNxHD 1080p 8bit high
230  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
231  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
232  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
234  // DNxHD 1080i 10bit high
235  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
236  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
237  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
239  // DNxHD 1080i 8bit medium
240  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
241  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
242  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
244  // DNxHD 1080i 8bit high
245  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
246  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
247  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
249  // DNxHD 720p 10bit
250  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
251  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
252  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
254  // DNxHD 720p 8bit high
255  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
256  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
257  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
259  // DNxHD 720p 8bit medium
260  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
261  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
262  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
264  // DNxHD 720p 8bit low
265  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
266  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
267  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
269  { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
270  { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
271  { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
272  NULL },
273 };
274 
275 typedef struct MXFContext {
283  uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
284  uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
288  int last_key_index; ///< index of last key frame
289  uint64_t duration;
290  AVTimecode tc; ///< timecode context
292  int timecode_base; ///< rounded time code base (25 or 30)
293  int edit_unit_byte_count; ///< fixed edit unit byte count
294  uint64_t body_offset;
295  uint32_t instance_number;
296  uint8_t umid[16]; ///< unique material identifier
298 } MXFContext;
299 
300 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
301 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
302 
303 /**
304  * complete key for operation pattern, partitions, and primer pack
305  */
306 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
307 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
308 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
309 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
310 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
311 static const uint8_t header_open_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x01,0x00 }; // OpenIncomplete
312 static const uint8_t header_closed_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x04,0x00 }; // ClosedComplete
313 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
314 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
315 
316 /**
317  * partial key for header metadata
318  */
319 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
320 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
321 
322 /**
323  * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
324  */
326  // preface set
327  { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
328  { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
329  { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
330  { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
331  { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
332  { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
333  { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
334  { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
335  // Identification
336  { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
337  { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
338  { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
339  { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
340  { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
341  { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
342  // Content Storage
343  { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
344  { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
345  // Essence Container Data
346  { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
347  { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
348  // Package
349  { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
350  { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
351  { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
352  { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
353  { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
354  // Track
355  { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
356  { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
357  { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
358  { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
359  { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
360  // Sequence
361  { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
362  { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
363  { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
364  // Source Clip
365  { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
366  { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
367  { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
368  // Timecode Component
369  { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
370  { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
371  { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
372  // File Descriptor
373  { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
374  { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
375  { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
376  { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
377  // Generic Picture Essence Descriptor
378  { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
379  { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
380  { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
381  { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
382  { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
383  { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
384  { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
385  { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
386  { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
387  // CDCI Picture Essence Descriptor
388  { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
389  { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
390  // Generic Sound Essence Descriptor
391  { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
392  { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
393  { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
394  { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
395  { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
396  // Index Table Segment
397  { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
398  { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
399  { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
400  { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
401  { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
402  { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
403  { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
404  { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
405  // MPEG video Descriptor
406  { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
407  { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
408  // Wave Audio Essence Descriptor
409  { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
410  { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
411 };
412 
414 {
415  avio_write(pb, uuid_base, 12);
416  avio_wb16(pb, type);
417  avio_wb16(pb, value);
418 }
419 
421 {
422  MXFContext *mxf = s->priv_data;
423  avio_write(s->pb, umid_ul, 13);
424  avio_wb24(s->pb, mxf->instance_number);
425  avio_write(s->pb, mxf->umid, 15);
426  avio_w8(s->pb, type);
427 }
428 
429 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
430 {
431  avio_wb32(pb, ref_count);
432  avio_wb32(pb, 16);
433 }
434 
435 static int klv_ber_length(uint64_t len)
436 {
437  if (len < 128)
438  return 1;
439  else
440  return (av_log2(len) >> 3) + 2;
441 }
442 
443 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
444 {
445  // Determine the best BER size
446  int size;
447  if (len < 128) {
448  //short form
449  avio_w8(pb, len);
450  return 1;
451  }
452 
453  size = (av_log2(len) >> 3) + 1;
454 
455  // long form
456  avio_w8(pb, 0x80 + size);
457  while(size) {
458  size--;
459  avio_w8(pb, len >> 8 * size & 0xff);
460  }
461  return 0;
462 }
463 
465 {
466  avio_w8(pb, 0x80 + 3);
467  avio_wb24(pb, len);
468 }
469 
470 /*
471  * Get essence container ul index
472  */
474 {
475  int i;
476  for (i = 0; mxf_essence_mappings[i].id; i++)
477  if (mxf_essence_mappings[i].id == id)
478  return mxf_essence_mappings[i].index;
479  return -1;
480 }
481 
483 {
484  AVIOContext *pb = s->pb;
485  int local_tag_number, i = 0;
486 
487  local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
488 
489  avio_write(pb, primer_pack_key, 16);
490  klv_encode_ber_length(pb, local_tag_number * 18 + 8);
491 
492  avio_wb32(pb, local_tag_number); // local_tag num
493  avio_wb32(pb, 18); // item size, always 18 according to the specs
494 
495  for (i = 0; i < local_tag_number; i++) {
496  avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
497  avio_write(pb, mxf_local_tag_batch[i].uid, 16);
498  }
499 }
500 
501 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
502 {
503  avio_wb16(pb, tag);
504  avio_wb16(pb, size);
505 }
506 
507 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
508 {
510  avio_wb24(pb, value);
511 }
512 
514 {
515  int i;
516 
517  for (i = 0; i < s->nb_streams; i++) {
518  AVStream *st = s->streams[i];
519  av_freep(&st->priv_data);
520  }
521 }
522 
524 {
526  while (uls->uid[0]) {
527  if (type == uls->id)
528  break;
529  uls++;
530  }
531  return uls;
532 }
533 
534 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
535 #define DESCRIPTOR_COUNT(essence_container_count) \
536  (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
537 
539 {
540  MXFContext *c = s->priv_data;
541  AVIOContext *pb = s->pb;
542  int i;
543 
545  av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
546  for (i = 0; i < c->essence_container_count; i++) {
547  MXFStreamContext *sc = s->streams[i]->priv_data;
548  avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
549  }
550 
551  if (c->essence_container_count > 1)
552  avio_write(pb, multiple_desc_ul, 16);
553 }
554 
556 {
557  MXFContext *mxf = s->priv_data;
558  AVIOContext *pb = s->pb;
559 
560  mxf_write_metadata_key(pb, 0x012f00);
561  PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
563 
564  // write preface set uid
565  mxf_write_local_tag(pb, 16, 0x3C0A);
566  mxf_write_uuid(pb, Preface, 0);
567  PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
568 
569  // last modified date
570  mxf_write_local_tag(pb, 8, 0x3B02);
571  avio_wb64(pb, mxf->timestamp);
572 
573  // write version
574  mxf_write_local_tag(pb, 2, 0x3B05);
575  avio_wb16(pb, 258); // v1.2
576 
577  // write identification_refs
578  mxf_write_local_tag(pb, 16 + 8, 0x3B06);
579  mxf_write_refs_count(pb, 1);
581 
582  // write content_storage_refs
583  mxf_write_local_tag(pb, 16, 0x3B03);
585 
586  // operational pattern
587  mxf_write_local_tag(pb, 16, 0x3B09);
588  avio_write(pb, op1a_ul, 16);
589 
590  // write essence_container_refs
591  mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
593 
594  // write dm_scheme_refs
595  mxf_write_local_tag(pb, 8, 0x3B0B);
596  avio_wb64(pb, 0);
597 }
598 
599 /*
600  * Write a local tag containing an ascii string as utf-16
601  */
602 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
603 {
604  int i, size = strlen(value);
605  mxf_write_local_tag(pb, size*2, tag);
606  for (i = 0; i < size; i++)
607  avio_wb16(pb, value[i]);
608 }
609 
611 {
612  MXFContext *mxf = s->priv_data;
613  AVIOContext *pb = s->pb;
614  const char *company = "FFmpeg";
615  const char *product = "OP1a Muxer";
616  const char *version;
617  int length;
618 
619  mxf_write_metadata_key(pb, 0x013000);
620  PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
621 
622  version = s->flags & AVFMT_FLAG_BITEXACT ?
624  length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
625  klv_encode_ber_length(pb, length);
626 
627  // write uid
628  mxf_write_local_tag(pb, 16, 0x3C0A);
630  PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
631 
632  // write generation uid
633  mxf_write_local_tag(pb, 16, 0x3C09);
635 
636  mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
637  mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
638  mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
639 
640  // write product uid
641  mxf_write_local_tag(pb, 16, 0x3C05);
643 
644  // modification date
645  mxf_write_local_tag(pb, 8, 0x3C06);
646  avio_wb64(pb, mxf->timestamp);
647 }
648 
650 {
651  AVIOContext *pb = s->pb;
652 
653  mxf_write_metadata_key(pb, 0x011800);
654  PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
655  klv_encode_ber_length(pb, 92);
656 
657  // write uid
658  mxf_write_local_tag(pb, 16, 0x3C0A);
660  PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
661 
662  // write package reference
663  mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
664  mxf_write_refs_count(pb, 2);
667 
668  // write essence container data
669  mxf_write_local_tag(pb, 8 + 16, 0x1902);
670  mxf_write_refs_count(pb, 1);
672 }
673 
675 {
676  MXFContext *mxf = s->priv_data;
677  AVIOContext *pb = s->pb;
678  MXFStreamContext *sc = st->priv_data;
679 
680  mxf_write_metadata_key(pb, 0x013b00);
681  PRINT_KEY(s, "track key", pb->buf_ptr - 16);
682  klv_encode_ber_length(pb, 80);
683 
684  // write track uid
685  mxf_write_local_tag(pb, 16, 0x3C0A);
686  mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
687  PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
688 
689  // write track id
690  mxf_write_local_tag(pb, 4, 0x4801);
691  avio_wb32(pb, st->index+2);
692 
693  // write track number
694  mxf_write_local_tag(pb, 4, 0x4804);
695  if (type == MaterialPackage)
696  avio_wb32(pb, 0); // track number of material package is 0
697  else
698  avio_write(pb, sc->track_essence_element_key + 12, 4);
699 
700  mxf_write_local_tag(pb, 8, 0x4B01);
701  avio_wb32(pb, mxf->time_base.den);
702  avio_wb32(pb, mxf->time_base.num);
703 
704  // write origin
705  mxf_write_local_tag(pb, 8, 0x4B02);
706  avio_wb64(pb, 0);
707 
708  // write sequence refs
709  mxf_write_local_tag(pb, 16, 0x4803);
711 }
712 
713 static const uint8_t smpte_12m_timecode_track_data_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x01,0x01,0x00,0x00,0x00 };
714 
716 {
717  MXFContext *mxf = s->priv_data;
718  AVIOContext *pb = s->pb;
719 
720  // find data define uls
721  mxf_write_local_tag(pb, 16, 0x0201);
722  if (st == mxf->timecode_track)
724  else {
725  const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
726  avio_write(pb, data_def_ul->uid, 16);
727  }
728 
729  // write duration
730  mxf_write_local_tag(pb, 8, 0x0202);
731  avio_wb64(pb, mxf->duration);
732 }
733 
735 {
736  MXFContext *mxf = s->priv_data;
737  AVIOContext *pb = s->pb;
738  enum MXFMetadataSetType component;
739 
740  mxf_write_metadata_key(pb, 0x010f00);
741  PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
742  klv_encode_ber_length(pb, 80);
743 
744  mxf_write_local_tag(pb, 16, 0x3C0A);
746 
747  PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
749 
750  // write structural component
751  mxf_write_local_tag(pb, 16 + 8, 0x1001);
752  mxf_write_refs_count(pb, 1);
753  if (st == mxf->timecode_track)
754  component = TimecodeComponent;
755  else
756  component = SourceClip;
757  if (type == SourcePackage)
758  component += TypeBottom;
759  mxf_write_uuid(pb, component, st->index);
760 }
761 
763 {
764  MXFContext *mxf = s->priv_data;
765  AVIOContext *pb = s->pb;
766 
767  mxf_write_metadata_key(pb, 0x011400);
768  klv_encode_ber_length(pb, 75);
769 
770  // UID
771  mxf_write_local_tag(pb, 16, 0x3C0A);
774 
776 
777  // Start Time Code
778  mxf_write_local_tag(pb, 8, 0x1501);
779  avio_wb64(pb, mxf->tc.start);
780 
781  // Rounded Time Code Base
782  mxf_write_local_tag(pb, 2, 0x1502);
783  avio_wb16(pb, mxf->timecode_base);
784 
785  // Drop Frame
786  mxf_write_local_tag(pb, 1, 0x1503);
787  avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
788 }
789 
791 {
792  AVIOContext *pb = s->pb;
793  int i;
794 
795  mxf_write_metadata_key(pb, 0x011100);
796  PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
797  klv_encode_ber_length(pb, 108);
798 
799  // write uid
800  mxf_write_local_tag(pb, 16, 0x3C0A);
802 
803  PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
805 
806  // write start_position
807  mxf_write_local_tag(pb, 8, 0x1201);
808  avio_wb64(pb, 0);
809 
810  // write source package uid, end of the reference
811  mxf_write_local_tag(pb, 32, 0x1101);
812  if (type == SourcePackage) {
813  for (i = 0; i < 4; i++)
814  avio_wb64(pb, 0);
815  } else
816  mxf_write_umid(s, 1);
817 
818  // write source track id
819  mxf_write_local_tag(pb, 4, 0x1102);
820  if (type == SourcePackage)
821  avio_wb32(pb, 0);
822  else
823  avio_wb32(pb, st->index+2);
824 }
825 
827 {
828  MXFContext *mxf = s->priv_data;
829  AVIOContext *pb = s->pb;
830  const uint8_t *ul;
831  int i;
832 
833  mxf_write_metadata_key(pb, 0x014400);
834  PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
835  klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
836 
837  mxf_write_local_tag(pb, 16, 0x3C0A);
839  PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
840 
841  // write sample rate
842  mxf_write_local_tag(pb, 8, 0x3001);
843  avio_wb32(pb, mxf->time_base.den);
844  avio_wb32(pb, mxf->time_base.num);
845 
846  // write essence container ul
847  mxf_write_local_tag(pb, 16, 0x3004);
848  if (mxf->essence_container_count > 1)
849  ul = multiple_desc_ul;
850  else {
851  MXFStreamContext *sc = s->streams[0]->priv_data;
852  ul = mxf_essence_container_uls[sc->index].container_ul;
853  }
854  avio_write(pb, ul, 16);
855 
856  // write sub descriptor refs
857  mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
859  for (i = 0; i < s->nb_streams; i++)
861 }
862 
863 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
864 {
865  MXFContext *mxf = s->priv_data;
866  MXFStreamContext *sc = st->priv_data;
867  AVIOContext *pb = s->pb;
868 
869  avio_write(pb, key, 16);
870  klv_encode_ber4_length(pb, size+20+8+12+20);
871 
872  mxf_write_local_tag(pb, 16, 0x3C0A);
874 
875  mxf_write_local_tag(pb, 4, 0x3006);
876  avio_wb32(pb, st->index+2);
877 
878  mxf_write_local_tag(pb, 8, 0x3001);
879  avio_wb32(pb, mxf->time_base.den);
880  avio_wb32(pb, mxf->time_base.num);
881 
882  mxf_write_local_tag(pb, 16, 0x3004);
883  avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
884 }
885 
886 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
887 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
888 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
889 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
890 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
891 
892 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
893 {
894  MXFStreamContext *sc = st->priv_data;
895  AVIOContext *pb = s->pb;
896  int stored_height = (st->codec->height+15)/16*16;
897  int display_height;
898  int f1, f2;
899  unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
900  if (sc->interlaced && sc->field_dominance)
901  desc_size += 5;
902 
903  mxf_write_generic_desc(s, st, key, desc_size);
904 
905  mxf_write_local_tag(pb, 4, 0x3203);
906  avio_wb32(pb, st->codec->width);
907 
908  mxf_write_local_tag(pb, 4, 0x3202);
909  avio_wb32(pb, stored_height>>sc->interlaced);
910 
911  mxf_write_local_tag(pb, 4, 0x3209);
912  avio_wb32(pb, st->codec->width);
913 
914  if (st->codec->height == 608) // PAL + VBI
915  display_height = 576;
916  else if (st->codec->height == 512) // NTSC + VBI
917  display_height = 486;
918  else
919  display_height = st->codec->height;
920 
921  mxf_write_local_tag(pb, 4, 0x3208);
922  avio_wb32(pb, display_height>>sc->interlaced);
923 
924  // component depth
925  mxf_write_local_tag(pb, 4, 0x3301);
926  avio_wb32(pb, sc->component_depth);
927 
928  // horizontal subsampling
929  mxf_write_local_tag(pb, 4, 0x3302);
930  avio_wb32(pb, 2);
931 
932  // frame layout
933  mxf_write_local_tag(pb, 1, 0x320C);
934  avio_w8(pb, sc->interlaced);
935 
936  // video line map
937  switch (st->codec->height) {
938  case 576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
939  case 608: f1 = 7; f2 = 320; break;
940  case 480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
941  case 512: f1 = 7; f2 = 270; break;
942  case 720: f1 = 26; f2 = 0; break; // progressive
943  case 1080: f1 = 21; f2 = 584; break;
944  default: f1 = 0; f2 = 0; break;
945  }
946 
947  if (!sc->interlaced) {
948  f2 = 0;
949  f1 *= 2;
950  }
951 
952  mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
953  avio_wb32(pb, sc->interlaced ? 2 : 1);
954  avio_wb32(pb, 4);
955  avio_wb32(pb, f1);
956  if (sc->interlaced)
957  avio_wb32(pb, f2);
958 
959  mxf_write_local_tag(pb, 8, 0x320E);
960  avio_wb32(pb, sc->aspect_ratio.num);
961  avio_wb32(pb, sc->aspect_ratio.den);
962 
963  mxf_write_local_tag(pb, 16, 0x3201);
964  avio_write(pb, *sc->codec_ul, 16);
965 
966  if (sc->interlaced && sc->field_dominance) {
967  mxf_write_local_tag(pb, 1, 0x3212);
968  avio_w8(pb, sc->field_dominance);
969  }
970 
971 }
972 
974 {
976 }
977 
979 {
980  AVIOContext *pb = s->pb;
981  MXFStreamContext *sc = st->priv_data;
982  int profile_and_level = (st->codec->profile<<4) | st->codec->level;
983 
985 
986  // bit rate
987  mxf_write_local_tag(pb, 4, 0x8000);
988  avio_wb32(pb, sc->video_bit_rate);
989 
990  // profile and level
991  mxf_write_local_tag(pb, 1, 0x8007);
992  if (!st->codec->profile)
993  profile_and_level |= 0x80; // escape bit
994  avio_w8(pb, profile_and_level);
995 }
996 
997 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
998 {
999  AVIOContext *pb = s->pb;
1000  MXFContext *mxf = s->priv_data;
1001  int show_warnings = !mxf->footer_partition_offset;
1002 
1003  mxf_write_generic_desc(s, st, key, size+5+12+8+8);
1004 
1005  // audio locked
1006  mxf_write_local_tag(pb, 1, 0x3D02);
1007  avio_w8(pb, 1);
1008 
1009  // write audio sampling rate
1010  mxf_write_local_tag(pb, 8, 0x3D03);
1011  avio_wb32(pb, st->codec->sample_rate);
1012  avio_wb32(pb, 1);
1013 
1014  mxf_write_local_tag(pb, 4, 0x3D07);
1015  if (mxf->channel_count == -1) {
1016  if (show_warnings && (s->oformat == &ff_mxf_d10_muxer) && (st->codec->channels != 4) && (st->codec->channels != 8))
1017  av_log(s, AV_LOG_WARNING, "the number of audio channels shall be 4 or 8 : the output will not comply to MXF D-10 specs, use -d10_channelcount to fix this\n");
1018  avio_wb32(pb, st->codec->channels);
1019  } else if (s->oformat == &ff_mxf_d10_muxer) {
1020  if (show_warnings && (mxf->channel_count < st->codec->channels))
1021  av_log(s, AV_LOG_WARNING, "d10_channelcount < actual number of audio channels : some channels will be discarded\n");
1022  if (show_warnings && (mxf->channel_count != 4) && (mxf->channel_count != 8))
1023  av_log(s, AV_LOG_WARNING, "d10_channelcount shall be set to 4 or 8 : the output will not comply to MXF D-10 specs\n");
1024  avio_wb32(pb, mxf->channel_count);
1025  } else {
1026  if (show_warnings)
1027  av_log(s, AV_LOG_ERROR, "-d10_channelcount requires MXF D-10 and will be ignored\n");
1028  avio_wb32(pb, st->codec->channels);
1029  }
1030 
1031  mxf_write_local_tag(pb, 4, 0x3D01);
1033 }
1034 
1035 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1036 {
1037  AVIOContext *pb = s->pb;
1038 
1039  mxf_write_generic_sound_common(s, st, key, size+6+8);
1040 
1041  mxf_write_local_tag(pb, 2, 0x3D0A);
1042  avio_wb16(pb, st->codec->block_align);
1043 
1044  // avg bytes per sec
1045  mxf_write_local_tag(pb, 4, 0x3D09);
1046  avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1047 }
1048 
1050 {
1052 }
1053 
1055 {
1057 }
1058 
1060 {
1062 }
1063 
1065 {
1066  MXFContext *mxf = s->priv_data;
1067  AVIOContext *pb = s->pb;
1068  int i, track_count = s->nb_streams+1;
1069 
1070  if (type == MaterialPackage) {
1071  mxf_write_metadata_key(pb, 0x013600);
1072  PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1073  klv_encode_ber_length(pb, 92 + 16*track_count);
1074  } else {
1075  mxf_write_metadata_key(pb, 0x013700);
1076  PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1077  klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1078  }
1079 
1080  // write uid
1081  mxf_write_local_tag(pb, 16, 0x3C0A);
1082  mxf_write_uuid(pb, type, 0);
1083  av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1084  PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1085 
1086  // write package umid
1087  mxf_write_local_tag(pb, 32, 0x4401);
1088  mxf_write_umid(s, type == SourcePackage);
1089  PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1090 
1091  // package creation date
1092  mxf_write_local_tag(pb, 8, 0x4405);
1093  avio_wb64(pb, mxf->timestamp);
1094 
1095  // package modified date
1096  mxf_write_local_tag(pb, 8, 0x4404);
1097  avio_wb64(pb, mxf->timestamp);
1098 
1099  // write track refs
1100  mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1101  mxf_write_refs_count(pb, track_count);
1102  mxf_write_uuid(pb, type == MaterialPackage ? Track :
1103  Track + TypeBottom, -1); // timecode track
1104  for (i = 0; i < s->nb_streams; i++)
1105  mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1106 
1107  // write multiple descriptor reference
1108  if (type == SourcePackage) {
1109  mxf_write_local_tag(pb, 16, 0x4701);
1110  if (s->nb_streams > 1) {
1113  } else
1114  mxf_write_uuid(pb, SubDescriptor, 0);
1115  }
1116 
1117  // write timecode track
1118  mxf_write_track(s, mxf->timecode_track, type);
1119  mxf_write_sequence(s, mxf->timecode_track, type);
1121 
1122  for (i = 0; i < s->nb_streams; i++) {
1123  AVStream *st = s->streams[i];
1124  mxf_write_track(s, st, type);
1125  mxf_write_sequence(s, st, type);
1126  mxf_write_structural_component(s, st, type);
1127 
1128  if (type == SourcePackage) {
1129  MXFStreamContext *sc = st->priv_data;
1130  mxf_essence_container_uls[sc->index].write_desc(s, st);
1131  }
1132  }
1133 }
1134 
1136 {
1137  AVIOContext *pb = s->pb;
1138 
1139  mxf_write_metadata_key(pb, 0x012300);
1140  klv_encode_ber_length(pb, 72);
1141 
1142  mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1144 
1145  mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1146  mxf_write_umid(s, 1);
1147 
1148  mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1149  avio_wb32(pb, 1);
1150 
1151  mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1152  avio_wb32(pb, 2);
1153 
1154  return 0;
1155 }
1156 
1158 {
1159  mxf_write_preface(s);
1165  return 0;
1166 }
1167 
1168 static unsigned klv_fill_size(uint64_t size)
1169 {
1170  unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1171  if (pad < 20) // smallest fill item possible
1172  return pad + KAG_SIZE;
1173  else
1174  return pad & (KAG_SIZE-1);
1175 }
1176 
1178 {
1179  MXFContext *mxf = s->priv_data;
1180  AVIOContext *pb = s->pb;
1181  int i, j, temporal_reordering = 0;
1182  int key_index = mxf->last_key_index;
1183 
1184  av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1185 
1186  if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1187  return;
1188 
1190 
1191  if (mxf->edit_unit_byte_count) {
1192  klv_encode_ber_length(pb, 80);
1193  } else {
1194  klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1195  12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1196  }
1197 
1198  // instance id
1199  mxf_write_local_tag(pb, 16, 0x3C0A);
1201 
1202  // index edit rate
1203  mxf_write_local_tag(pb, 8, 0x3F0B);
1204  avio_wb32(pb, mxf->time_base.den);
1205  avio_wb32(pb, mxf->time_base.num);
1206 
1207  // index start position
1208  mxf_write_local_tag(pb, 8, 0x3F0C);
1210 
1211  // index duration
1212  mxf_write_local_tag(pb, 8, 0x3F0D);
1213  if (mxf->edit_unit_byte_count)
1214  avio_wb64(pb, 0); // index table covers whole container
1215  else
1216  avio_wb64(pb, mxf->edit_units_count);
1217 
1218  // edit unit byte count
1219  mxf_write_local_tag(pb, 4, 0x3F05);
1220  avio_wb32(pb, mxf->edit_unit_byte_count);
1221 
1222  // index sid
1223  mxf_write_local_tag(pb, 4, 0x3F06);
1224  avio_wb32(pb, 2);
1225 
1226  // body sid
1227  mxf_write_local_tag(pb, 4, 0x3F07);
1228  avio_wb32(pb, 1);
1229 
1230  if (!mxf->edit_unit_byte_count) {
1231  // real slice count - 1
1232  mxf_write_local_tag(pb, 1, 0x3F08);
1233  avio_w8(pb, mxf->slice_count);
1234 
1235  // delta entry array
1236  mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1237  avio_wb32(pb, s->nb_streams+1); // num of entries
1238  avio_wb32(pb, 6); // size of one entry
1239  // write system item delta entry
1240  avio_w8(pb, 0);
1241  avio_w8(pb, 0); // slice entry
1242  avio_wb32(pb, 0); // element delta
1243  for (i = 0; i < s->nb_streams; i++) {
1244  AVStream *st = s->streams[i];
1245  MXFStreamContext *sc = st->priv_data;
1246  avio_w8(pb, sc->temporal_reordering);
1247  if (sc->temporal_reordering)
1248  temporal_reordering = 1;
1249  if (i == 0) { // video track
1250  avio_w8(pb, 0); // slice number
1251  avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1252  } else { // audio track
1253  unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1254  audio_frame_size += klv_fill_size(audio_frame_size);
1255  avio_w8(pb, 1);
1256  avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1257  }
1258  }
1259 
1260  mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1261  avio_wb32(pb, mxf->edit_units_count); // num of entries
1262  avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1263 
1264  for (i = 0; i < mxf->edit_units_count; i++) {
1265  int temporal_offset = 0;
1266 
1267  if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1268  mxf->last_key_index = key_index;
1269  key_index = i;
1270  }
1271 
1272  if (temporal_reordering) {
1273  int pic_num_in_gop = i - key_index;
1274  if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1275  for (j = key_index; j < mxf->edit_units_count; j++) {
1276  if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1277  break;
1278  }
1279  if (j == mxf->edit_units_count)
1280  av_log(s, AV_LOG_WARNING, "missing frames\n");
1281  temporal_offset = j - key_index - pic_num_in_gop;
1282  }
1283  }
1284  avio_w8(pb, temporal_offset);
1285 
1286  if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1287  avio_w8(pb, mxf->last_key_index - i);
1288  } else {
1289  avio_w8(pb, key_index - i); // key frame offset
1290  if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1291  mxf->last_key_index = key_index;
1292  }
1293 
1294  if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1295  mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1296  mxf->index_entries[i].flags |= 0x80; // random access
1297  avio_w8(pb, mxf->index_entries[i].flags);
1298  // stream offset
1299  avio_wb64(pb, mxf->index_entries[i].offset);
1300  if (s->nb_streams > 1)
1301  avio_wb32(pb, mxf->index_entries[i].slice_offset);
1302  }
1303 
1304  mxf->last_key_index = key_index - mxf->edit_units_count;
1306  mxf->edit_units_count = 0;
1307  }
1308 }
1309 
1311 {
1312  unsigned pad = klv_fill_size(avio_tell(s->pb));
1313  if (pad) {
1314  avio_write(s->pb, klv_fill_key, 16);
1315  pad -= 16 + 4;
1316  klv_encode_ber4_length(s->pb, pad);
1317  ffio_fill(s->pb, 0, pad);
1318  av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1319  }
1320 }
1321 
1322 static int mxf_write_partition(AVFormatContext *s, int bodysid,
1323  int indexsid,
1324  const uint8_t *key, int write_metadata)
1325 {
1326  MXFContext *mxf = s->priv_data;
1327  AVIOContext *pb = s->pb;
1328  int64_t header_byte_count_offset;
1329  unsigned index_byte_count = 0;
1330  uint64_t partition_offset = avio_tell(pb);
1331  int err;
1332 
1333  if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1334  index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1335  12+mxf->edit_units_count*(11+mxf->slice_count*4);
1336  else if (mxf->edit_unit_byte_count && indexsid)
1337  index_byte_count = 80;
1338 
1339  if (index_byte_count) {
1340  // add encoded ber length
1341  index_byte_count += 16 + klv_ber_length(index_byte_count);
1342  index_byte_count += klv_fill_size(index_byte_count);
1343  }
1344 
1345  if (!memcmp(key, body_partition_key, 16)) {
1347  sizeof(*mxf->body_partition_offset))) < 0) {
1348  mxf->body_partitions_count = 0;
1349  return err;
1350  }
1351  mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1352  }
1353 
1354  // write klv
1355  avio_write(pb, key, 16);
1357 
1358  // write partition value
1359  avio_wb16(pb, 1); // majorVersion
1360  avio_wb16(pb, 2); // minorVersion
1361  avio_wb32(pb, KAG_SIZE); // KAGSize
1362 
1363  avio_wb64(pb, partition_offset); // ThisPartition
1364 
1365  if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1366  avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1367  else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1368  avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1369  else
1370  avio_wb64(pb, 0);
1371 
1372  avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1373 
1374  // set offset
1375  header_byte_count_offset = avio_tell(pb);
1376  avio_wb64(pb, 0); // headerByteCount, update later
1377 
1378  // indexTable
1379  avio_wb64(pb, index_byte_count); // indexByteCount
1380  avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1381 
1382  // BodyOffset
1383  if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1384  avio_wb64(pb, mxf->body_offset);
1385  } else
1386  avio_wb64(pb, 0);
1387 
1388  avio_wb32(pb, bodysid); // bodySID
1389 
1390  // operational pattern
1391  avio_write(pb, op1a_ul, 16);
1392 
1393  // essence container
1395 
1396  if (write_metadata) {
1397  // mark the start of the headermetadata and calculate metadata size
1398  int64_t pos, start;
1399  unsigned header_byte_count;
1400 
1401  mxf_write_klv_fill(s);
1402  start = avio_tell(s->pb);
1405  pos = avio_tell(s->pb);
1406  header_byte_count = pos - start + klv_fill_size(pos);
1407 
1408  // update header_byte_count
1409  avio_seek(pb, header_byte_count_offset, SEEK_SET);
1410  avio_wb64(pb, header_byte_count);
1411  avio_seek(pb, pos, SEEK_SET);
1412  }
1413 
1414  avio_flush(pb);
1415 
1416  return 0;
1417 }
1418 
1420 AVPacket *pkt)
1421 {
1422  MXFContext *mxf = s->priv_data;
1423  MXFStreamContext *sc = st->priv_data;
1424  int i, cid;
1425  uint8_t* header_cid;
1426  int frame_size = 0;
1427 
1428  if (mxf->header_written)
1429  return 1;
1430 
1431  if (pkt->size < 43)
1432  return -1;
1433 
1434  header_cid = pkt->data + 0x28;
1435  cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1436 
1437  if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
1438  return -1;
1439 
1440  switch (cid) {
1441  case 1235:
1442  sc->index = 24;
1443  sc->component_depth = 10;
1444  break;
1445  case 1237:
1446  sc->index = 25;
1447  break;
1448  case 1238:
1449  sc->index = 26;
1450  break;
1451  case 1241:
1452  sc->index = 27;
1453  sc->component_depth = 10;
1454  break;
1455  case 1242:
1456  sc->index = 28;
1457  break;
1458  case 1243:
1459  sc->index = 29;
1460  break;
1461  case 1250:
1462  sc->index = 30;
1463  sc->component_depth = 10;
1464  break;
1465  case 1251:
1466  sc->index = 31;
1467  break;
1468  case 1252:
1469  sc->index = 32;
1470  break;
1471  case 1253:
1472  sc->index = 33;
1473  break;
1474  default:
1475  return -1;
1476  }
1477 
1478  sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1479  sc->aspect_ratio = (AVRational){ 16, 9 };
1480 
1482  for (i = 0; i < s->nb_streams; i++) {
1483  AVStream *st = s->streams[i];
1484  MXFStreamContext *sc = st->priv_data;
1485  if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1486  mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1488  } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1489  mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1491  }
1492  }
1493 
1494  return 1;
1495 }
1496 
1498 {
1499  MXFContext *mxf = s->priv_data;
1500  MXFStreamContext *sc = st->priv_data;
1501  uint8_t *vs_pack, *vsc_pack;
1502  int i, ul_index, frame_size, stype, pal;
1503 
1504  if (mxf->header_written)
1505  return 1;
1506 
1507  // Check for minimal frame size
1508  if (pkt->size < 120000)
1509  return -1;
1510 
1511  vs_pack = pkt->data + 80*5 + 48;
1512  vsc_pack = pkt->data + 80*5 + 53;
1513  stype = vs_pack[3] & 0x1f;
1514  pal = (vs_pack[3] >> 5) & 0x1;
1515 
1516  if ((vs_pack[2] & 0x07) == 0x02)
1517  sc->aspect_ratio = (AVRational){ 16, 9 };
1518  else
1519  sc->aspect_ratio = (AVRational){ 4, 3 };
1520 
1521  sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1522  // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1523  // and set field dominance accordingly
1524  // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1525 
1526  switch (stype) {
1527  case 0x18: // DV100 720p
1528  ul_index = 6 + pal;
1529  frame_size = pal ? 288000 : 240000;
1530  if (sc->interlaced) {
1531  av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1532  sc->interlaced = 0;
1533  }
1534  break;
1535  case 0x14: // DV100 1080i
1536  ul_index = 4 + pal;
1537  frame_size = pal ? 576000 : 480000;
1538  break;
1539  case 0x04: // DV50
1540  ul_index = 2 + pal;
1541  frame_size = pal ? 288000 : 240000;
1542  break;
1543  default: // DV25
1544  ul_index = 0 + pal;
1545  frame_size = pal ? 144000 : 120000;
1546  }
1547 
1548  sc->index = ul_index + 16;
1549  sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1550 
1552  for (i = 0; i < s->nb_streams; i++) {
1553  AVStream *st = s->streams[i];
1554  MXFStreamContext *sc = st->priv_data;
1555  if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1556  mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1558  } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1559  mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1561  }
1562  }
1563 
1564  return 1;
1565 }
1566 
1567 static const UID mxf_mpeg2_codec_uls[] = {
1568  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1569  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1570  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1571  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1572  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1573  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1574  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1575  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1576  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1577  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1578 };
1579 
1581 {
1582  int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1583 
1584  if (avctx->profile == 4) { // Main
1585  if (avctx->level == 8) // Main
1586  return &mxf_mpeg2_codec_uls[0+long_gop];
1587  else if (avctx->level == 4) // High
1588  return &mxf_mpeg2_codec_uls[4+long_gop];
1589  else if (avctx->level == 6) // High 14
1590  return &mxf_mpeg2_codec_uls[8+long_gop];
1591  } else if (avctx->profile == 0) { // 422
1592  if (avctx->level == 5) // Main
1593  return &mxf_mpeg2_codec_uls[2+long_gop];
1594  else if (avctx->level == 2) // High
1595  return &mxf_mpeg2_codec_uls[6+long_gop];
1596  }
1597  return NULL;
1598 }
1599 
1601  AVPacket *pkt, MXFIndexEntry *e)
1602 {
1603  MXFStreamContext *sc = st->priv_data;
1604  uint32_t c = -1;
1605  int i;
1606 
1607  for(i = 0; i < pkt->size - 4; i++) {
1608  c = (c<<8) + pkt->data[i];
1609  if (c == 0x1b5) {
1610  if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1611  st->codec->profile = pkt->data[i+1] & 0x07;
1612  st->codec->level = pkt->data[i+2] >> 4;
1613  } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1614  sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1615  if (sc->interlaced)
1616  sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1617  break;
1618  }
1619  } else if (c == 0x1b8) { // gop
1620  if (pkt->data[i+4]>>6 & 0x01) { // closed
1621  sc->closed_gop = 1;
1622  if (e->flags & 0x40) // sequence header present
1623  e->flags |= 0x80; // random access
1624  }
1625  } else if (c == 0x1b3) { // seq
1626  e->flags |= 0x40;
1627  switch ((pkt->data[i+4]>>4) & 0xf) {
1628  case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1629  case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1630  case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1631  default:
1633  st->codec->width, st->codec->height, 1024*1024);
1634  }
1635  } else if (c == 0x100) { // pic
1636  int pict_type = (pkt->data[i+2]>>3) & 0x07;
1637  e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1638  if (pict_type == 2) { // P frame
1639  e->flags |= 0x22;
1640  sc->closed_gop = 0; // reset closed gop, don't matter anymore
1641  } else if (pict_type == 3) { // B frame
1642  if (sc->closed_gop)
1643  e->flags |= 0x13; // only backward prediction
1644  else
1645  e->flags |= 0x33;
1646  sc->temporal_reordering = -1;
1647  } else if (!pict_type) {
1648  av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1649  return 0;
1650  }
1651  }
1652  }
1653  if (s->oformat != &ff_mxf_d10_muxer)
1655  return !!sc->codec_ul;
1656 }
1657 
1658 static uint64_t mxf_parse_timestamp(time_t timestamp)
1659 {
1660  struct tm *time = gmtime(&timestamp);
1661  if (!time)
1662  return 0;
1663  return (uint64_t)(time->tm_year+1900) << 48 |
1664  (uint64_t)(time->tm_mon+1) << 40 |
1665  (uint64_t) time->tm_mday << 32 |
1666  time->tm_hour << 24 |
1667  time->tm_min << 16 |
1668  time->tm_sec << 8;
1669 }
1670 
1672 {
1673  MXFContext *mxf = s->priv_data;
1674  uint32_t seed = av_get_random_seed();
1675  uint64_t umid = seed + 0x5294713400000000LL;
1676 
1677  AV_WB64(mxf->umid , umid);
1678  AV_WB64(mxf->umid+8, umid>>8);
1679 
1680  mxf->instance_number = seed & 0xFFFFFF;
1681 }
1682 
1684 {
1685  MXFContext *mxf = s->priv_data;
1686  int i, ret;
1687  uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1688  const MXFSamplesPerFrame *spf = NULL;
1689  AVDictionaryEntry *t;
1690  int64_t timestamp = 0;
1691  AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1692 
1693  if (!s->nb_streams)
1694  return -1;
1695 
1696  for (i = 0; i < s->nb_streams; i++) {
1697  AVStream *st = s->streams[i];
1698  MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1699  if (!sc)
1700  return AVERROR(ENOMEM);
1701  st->priv_data = sc;
1702 
1703  if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1704  av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1705  return -1;
1706  }
1707 
1708  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1709  // TODO: should be avg_frame_rate
1710  AVRational rate, tbc = st->time_base;
1711  // Default component depth to 8
1712  sc->component_depth = 8;
1713  mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1714  spf = ff_mxf_get_samples_per_frame(s, tbc);
1715  if (!spf) {
1716  av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1717  tbc.den, tbc.num);
1718  return AVERROR(EINVAL);
1719  }
1720  mxf->time_base = spf->time_base;
1721  rate = av_inv_q(mxf->time_base);
1722  avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1723  if (!tcr)
1724  tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1725  if (tcr)
1726  ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1727  else
1728  ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1729  if (ret < 0)
1730  return ret;
1731  sc->video_bit_rate = st->codec->bit_rate ? st->codec->bit_rate : st->codec->rc_max_rate;
1732  if (s->oformat == &ff_mxf_d10_muxer) {
1733  if (sc->video_bit_rate == 50000000) {
1734  if (mxf->time_base.den == 25) sc->index = 3;
1735  else sc->index = 5;
1736  } else if (sc->video_bit_rate == 40000000) {
1737  if (mxf->time_base.den == 25) sc->index = 7;
1738  else sc->index = 9;
1739  } else if (sc->video_bit_rate == 30000000) {
1740  if (mxf->time_base.den == 25) sc->index = 11;
1741  else sc->index = 13;
1742  } else {
1743  av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1744  return -1;
1745  }
1746 
1747  mxf->edit_unit_byte_count = KAG_SIZE; // system element
1748  mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)sc->video_bit_rate *
1749  mxf->time_base.num / (8*mxf->time_base.den);
1751  mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
1753  }
1754  } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1755  if (st->codec->sample_rate != 48000) {
1756  av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1757  return -1;
1758  }
1759  avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1760  if (s->oformat == &ff_mxf_d10_muxer) {
1761  if (st->index != 1) {
1762  av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1763  return -1;
1764  }
1765  if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1767  av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1768  }
1769  sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1770  } else
1771  mxf->slice_count = 1;
1772  }
1773 
1774  if (!sc->index) {
1776  if (sc->index == -1) {
1777  av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1778  "codec not currently supported in container\n", i);
1779  return -1;
1780  }
1781  }
1782 
1783  sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1784 
1785  memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1786  sc->track_essence_element_key[15] = present[sc->index];
1787  PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1788 
1789  if (!present[sc->index])
1790  mxf->essence_container_count++;
1791  present[sc->index]++;
1792  }
1793 
1794  if (s->oformat == &ff_mxf_d10_muxer) {
1795  mxf->essence_container_count = 1;
1796  }
1797 
1798  if (!(s->flags & AVFMT_FLAG_BITEXACT))
1799  mxf_gen_umid(s);
1800 
1801  for (i = 0; i < s->nb_streams; i++) {
1802  MXFStreamContext *sc = s->streams[i]->priv_data;
1803  // update element count
1804  sc->track_essence_element_key[13] = present[sc->index];
1805  if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1806  sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1807  else
1808  sc->order = AV_RB32(sc->track_essence_element_key+12);
1809  }
1810 
1811  if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1812  timestamp = ff_iso8601_to_unix_time(t->value);
1813  if (timestamp)
1814  mxf->timestamp = mxf_parse_timestamp(timestamp);
1815  mxf->duration = -1;
1816 
1817  mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1818  if (!mxf->timecode_track)
1819  return AVERROR(ENOMEM);
1821  if (!mxf->timecode_track->priv_data)
1822  return AVERROR(ENOMEM);
1823  mxf->timecode_track->index = -1;
1824 
1825  if (!spf)
1826  spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
1827 
1828  if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
1829  return -1;
1830 
1831  return 0;
1832 }
1833 
1834 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1835 static const uint8_t system_metadata_package_set_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x43,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x02,0x01 };
1836 
1838 {
1839  MXFContext *mxf = s->priv_data;
1840  AVIOContext *pb = s->pb;
1841  unsigned frame;
1842  uint32_t time_code;
1843 
1844  frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1845 
1846  // write system metadata pack
1848  klv_encode_ber4_length(pb, 57);
1849  avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1850  avio_w8(pb, 0x04); // content package rate
1851  avio_w8(pb, 0x00); // content package type
1852  avio_wb16(pb, 0x00); // channel handle
1853  avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
1854  if (mxf->essence_container_count > 1)
1855  avio_write(pb, multiple_desc_ul, 16);
1856  else {
1857  MXFStreamContext *sc = s->streams[0]->priv_data;
1858  avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1859  }
1860  avio_w8(pb, 0);
1861  avio_wb64(pb, 0);
1862  avio_wb64(pb, 0); // creation date/time stamp
1863 
1864  avio_w8(pb, 0x81); // SMPTE 12M time code
1865  time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1866  avio_wb32(pb, time_code);
1867  avio_wb32(pb, 0); // binary group data
1868  avio_wb64(pb, 0);
1869 
1870  // write system metadata package set
1872  klv_encode_ber4_length(pb, 35);
1873  avio_w8(pb, 0x83); // UMID
1874  avio_wb16(pb, 0x20);
1875  mxf_write_umid(s, 1);
1876 }
1877 
1879 {
1880  MXFContext *mxf = s->priv_data;
1881  AVIOContext *pb = s->pb;
1882  MXFStreamContext *sc = st->priv_data;
1883  int packet_size = (uint64_t)sc->video_bit_rate*mxf->time_base.num /
1884  (8*mxf->time_base.den); // frame size
1885  int pad;
1886 
1887  packet_size += 16 + 4;
1888  packet_size += klv_fill_size(packet_size);
1889 
1890  klv_encode_ber4_length(pb, pkt->size);
1891  avio_write(pb, pkt->data, pkt->size);
1892 
1893  // ensure CBR muxing by padding to correct video frame size
1894  pad = packet_size - pkt->size - 16 - 4;
1895  if (pad > 20) {
1896  avio_write(s->pb, klv_fill_key, 16);
1897  pad -= 16 + 4;
1898  klv_encode_ber4_length(s->pb, pad);
1899  ffio_fill(s->pb, 0, pad);
1900  av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1901  } else {
1902  av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1903  ffio_fill(s->pb, 0, pad);
1904  }
1905 }
1906 
1908 {
1909  MXFContext *mxf = s->priv_data;
1910  AVIOContext *pb = s->pb;
1911  int frame_size = pkt->size / st->codec->block_align;
1912  uint8_t *samples = pkt->data;
1913  uint8_t *end = pkt->data + pkt->size;
1914  int i;
1915 
1916  klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1917 
1918  avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1919  avio_wl16(pb, frame_size);
1920  avio_w8(pb, (1<<st->codec->channels)-1);
1921 
1922  while (samples < end) {
1923  for (i = 0; i < st->codec->channels; i++) {
1924  uint32_t sample;
1925  if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
1926  sample = AV_RL24(samples)<< 4;
1927  samples += 3;
1928  } else {
1929  sample = AV_RL16(samples)<<12;
1930  samples += 2;
1931  }
1932  avio_wl32(pb, sample | i);
1933  }
1934  for (; i < 8; i++)
1935  avio_wl32(pb, i);
1936  }
1937 }
1938 
1940 {
1941  MXFContext *mxf = s->priv_data;
1942  AVIOContext *pb = s->pb;
1943  AVStream *st = s->streams[pkt->stream_index];
1944  MXFStreamContext *sc = st->priv_data;
1945  MXFIndexEntry ie = {0};
1946  int err;
1947 
1949  if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
1950  + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
1951  mxf->edit_units_count = 0;
1952  av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1953  return err;
1954  }
1955  }
1956 
1957  if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1958  if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1959  av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1960  return -1;
1961  }
1962  } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
1963  if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1964  av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1965  return -1;
1966  }
1967  } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
1968  if (!mxf_parse_dv_frame(s, st, pkt)) {
1969  av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1970  return -1;
1971  }
1972  }
1973 
1974  if (!mxf->header_written) {
1975  if (mxf->edit_unit_byte_count) {
1976  if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
1977  return err;
1978  mxf_write_klv_fill(s);
1980  } else {
1981  if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
1982  return err;
1983  }
1984  mxf->header_written = 1;
1985  }
1986 
1987  if (st->index == 0) {
1988  if (!mxf->edit_unit_byte_count &&
1990  !(ie.flags & 0x33)) { // I frame, Gop start
1991  mxf_write_klv_fill(s);
1992  if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
1993  return err;
1994  mxf_write_klv_fill(s);
1996  }
1997 
1998  mxf_write_klv_fill(s);
2000 
2001  if (!mxf->edit_unit_byte_count) {
2003  mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
2005  mxf->body_offset += KAG_SIZE; // size of system element
2006  }
2007  mxf->edit_units_count++;
2008  } else if (!mxf->edit_unit_byte_count && st->index == 1) {
2010  mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
2011  }
2012 
2013  mxf_write_klv_fill(s);
2014  avio_write(pb, sc->track_essence_element_key, 16); // write key
2015  if (s->oformat == &ff_mxf_d10_muxer) {
2016  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2017  mxf_write_d10_video_packet(s, st, pkt);
2018  else
2019  mxf_write_d10_audio_packet(s, st, pkt);
2020  } else {
2021  klv_encode_ber4_length(pb, pkt->size); // write length
2022  avio_write(pb, pkt->data, pkt->size);
2023  mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2024  }
2025 
2026  avio_flush(pb);
2027 
2028  return 0;
2029 }
2030 
2032 {
2033  MXFContext *mxf = s->priv_data;
2034  AVIOContext *pb = s->pb;
2035  uint64_t pos = avio_tell(pb);
2036  int i;
2037 
2039  klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2040 
2041  if (mxf->edit_unit_byte_count)
2042  avio_wb32(pb, 1); // BodySID of header partition
2043  else
2044  avio_wb32(pb, 0);
2045  avio_wb64(pb, 0); // offset of header partition
2046 
2047  for (i = 0; i < mxf->body_partitions_count; i++) {
2048  avio_wb32(pb, 1); // BodySID
2049  avio_wb64(pb, mxf->body_partition_offset[i]);
2050  }
2051 
2052  avio_wb32(pb, 0); // BodySID of footer partition
2054 
2055  avio_wb32(pb, avio_tell(pb) - pos + 4);
2056 }
2057 
2059 {
2060  MXFContext *mxf = s->priv_data;
2061  AVIOContext *pb = s->pb;
2062  int err;
2063 
2065 
2066  mxf_write_klv_fill(s);
2068  if (mxf->edit_unit_byte_count) { // no need to repeat index
2069  if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
2070  return err;
2071  } else {
2072  if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
2073  return err;
2074  mxf_write_klv_fill(s);
2076  }
2077 
2078  mxf_write_klv_fill(s);
2080 
2081  if (s->pb->seekable) {
2082  avio_seek(pb, 0, SEEK_SET);
2083  if (mxf->edit_unit_byte_count) {
2084  if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
2085  return err;
2086  mxf_write_klv_fill(s);
2088  } else {
2089  if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
2090  return err;
2091  }
2092  }
2093 
2095 
2096  av_freep(&mxf->index_entries);
2099  av_freep(&mxf->timecode_track);
2100 
2101  mxf_free(s);
2102 
2103  return 0;
2104 }
2105 
2107 {
2108  int i, stream_count = 0;
2109 
2110  for (i = 0; i < s->nb_streams; i++)
2111  stream_count += !!s->streams[i]->last_in_packet_buffer;
2112 
2113  if (stream_count && (s->nb_streams == stream_count || flush)) {
2114  AVPacketList *pktl = s->packet_buffer;
2115  if (s->nb_streams != stream_count) {
2116  AVPacketList *last = NULL;
2117  // find last packet in edit unit
2118  while (pktl) {
2119  if (!stream_count || pktl->pkt.stream_index == 0)
2120  break;
2121  last = pktl;
2122  pktl = pktl->next;
2123  stream_count--;
2124  }
2125  // purge packet queue
2126  while (pktl) {
2127  AVPacketList *next = pktl->next;
2128 
2129  if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2130  s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2131  av_free_packet(&pktl->pkt);
2132  av_freep(&pktl);
2133  pktl = next;
2134  }
2135  if (last)
2136  last->next = NULL;
2137  else {
2138  s->packet_buffer = NULL;
2139  s->packet_buffer_end= NULL;
2140  goto out;
2141  }
2142  pktl = s->packet_buffer;
2143  }
2144 
2145  *out = pktl->pkt;
2146  av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2147  s->packet_buffer = pktl->next;
2148  if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2149  s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2150  if(!s->packet_buffer)
2151  s->packet_buffer_end= NULL;
2152  av_freep(&pktl);
2153  return 1;
2154  } else {
2155  out:
2156  av_init_packet(out);
2157  return 0;
2158  }
2159 }
2160 
2162 {
2164  MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2165 
2166  return next->dts > pkt->dts ||
2167  (next->dts == pkt->dts && sc->order < sc2->order);
2168 }
2169 
2171 {
2172  return ff_audio_rechunk_interleave(s, out, pkt, flush,
2174 }
2175 
2176 static const AVOption d10_options[] = {
2177  { "d10_channelcount", "Force/set channelcount in generic sound essence descriptor",
2178  offsetof(MXFContext, channel_count), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 8, AV_OPT_FLAG_ENCODING_PARAM},
2179  { NULL },
2180 };
2181 
2183  .class_name = "MXF-D10 muxer",
2184  .item_name = av_default_item_name,
2185  .option = d10_options,
2186  .version = LIBAVUTIL_VERSION_INT,
2187 };
2188 
2190  .name = "mxf",
2191  .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2192  .mime_type = "application/mxf",
2193  .extensions = "mxf",
2194  .priv_data_size = sizeof(MXFContext),
2195  .audio_codec = AV_CODEC_ID_PCM_S16LE,
2196  .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2202 };
2203 
2204 AVOutputFormat ff_mxf_d10_muxer = {
2205  .name = "mxf_d10",
2206  .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2207  .mime_type = "application/mxf",
2208  .priv_data_size = sizeof(MXFContext),
2209  .audio_codec = AV_CODEC_ID_PCM_S16LE,
2210  .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2216  .priv_class = &mxf_d10_muxer_class,
2217 };