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 422M Mapping JPEG 2000 Codestreams into the MXF Generic Container
30  * SMPTE RP210: SMPTE Metadata Dictionary
31  * SMPTE RP224: Registry of SMPTE Universal Labels
32  */
33 
34 #include <inttypes.h>
35 #include <math.h>
36 #include <time.h>
37 
38 #include "libavutil/opt.h"
39 #include "libavutil/random_seed.h"
40 #include "libavutil/timecode.h"
41 #include "libavutil/avassert.h"
43 #include "libavcodec/bytestream.h"
44 #include "libavcodec/dnxhddata.h"
45 #include "libavcodec/h264.h"
46 #include "libavcodec/internal.h"
47 #include "audiointerleave.h"
48 #include "avformat.h"
49 #include "avio_internal.h"
50 #include "internal.h"
51 #include "mxf.h"
52 #include "config.h"
53 
56 
57 #define EDIT_UNITS_PER_BODY 250
58 #define KAG_SIZE 512
59 
60 typedef struct MXFLocalTagPair {
61  int local_tag;
64 
65 typedef struct MXFIndexEntry {
67  uint64_t offset;
68  unsigned slice_offset; ///< offset of audio slice
69  uint16_t temporal_ref;
71 
72 typedef struct MXFStreamContext {
75  int index; ///< index in mxf_essence_container_uls table
76  const UID *codec_ul;
77  int order; ///< interleaving order if dts are equal
78  int interlaced; ///< whether picture is interlaced
79  int field_dominance; ///< tff=1, bff=2
82  AVRational aspect_ratio; ///< display aspect ratio
83  int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
86 
87 typedef struct MXFContainerEssenceEntry {
93 
94 static const struct {
95  enum AVCodecID id;
96  int index;
99  { AV_CODEC_ID_PCM_S24LE, 1 },
100  { AV_CODEC_ID_PCM_S16LE, 1 },
101  { AV_CODEC_ID_DVVIDEO, 15 },
102  { AV_CODEC_ID_DNXHD, 24 },
103  { AV_CODEC_ID_JPEG2000, 34 },
104  { AV_CODEC_ID_H264, 35 },
105  { AV_CODEC_ID_NONE }
106 };
107 
108 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
109 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
111 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
113 
115  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
116  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
117  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
119  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
120  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
121  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
123  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
124  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
125  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
127  // D-10 625/50 PAL 50mb/s
128  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
129  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
130  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
132  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
133  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
134  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
136  // D-10 525/60 NTSC 50mb/s
137  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
138  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
139  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
141  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
142  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
143  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
145  // D-10 625/50 PAL 40mb/s
146  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
147  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
148  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
150  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
151  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
152  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
154  // D-10 525/60 NTSC 40mb/s
155  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
156  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
157  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
159  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
160  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
161  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
163  // D-10 625/50 PAL 30mb/s
164  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
165  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
166  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
168  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
169  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
170  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
172  // D-10 525/60 NTSC 30mb/s
173  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
174  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
175  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
177  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
178  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
179  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
181  // DV Unknown
182  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
183  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
184  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
186  // DV25 525/60
187  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
188  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
189  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
191  // DV25 625/50
192  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
193  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
194  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
196  // DV50 525/60
197  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
198  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
199  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
201  // DV50 625/50
202  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
203  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
204  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
206  // DV100 1080/60
207  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
208  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
209  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
211  // DV100 1080/50
212  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
213  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
214  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
216  // DV100 720/60
217  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
218  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
219  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
221  // DV100 720/50
222  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
223  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
224  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
226  // DNxHD 1080p 10bit high
227  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
228  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
229  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
231  // DNxHD 1080p 8bit medium
232  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
233  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
234  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
236  // DNxHD 1080p 8bit high
237  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
238  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
239  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
241  // DNxHD 1080i 10bit high
242  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
243  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
244  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
246  // DNxHD 1080i 8bit medium
247  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
248  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
249  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
251  // DNxHD 1080i 8bit high
252  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
253  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
254  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
256  // DNxHD 720p 10bit
257  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
258  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
259  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
261  // DNxHD 720p 8bit high
262  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
263  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
264  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
266  // DNxHD 720p 8bit medium
267  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
268  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
269  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
271  // DNxHD 720p 8bit low
272  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
273  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
274  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
276  // JPEG2000
277  { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0c,0x01,0x00 },
278  { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x08,0x00 },
279  { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 },
281  // H.264
282  { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x10,0x60,0x01 },
283  { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
284  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
286  { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
287  { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
288  { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
289  NULL },
290 };
291 
292 typedef struct MXFContext {
300  uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
301  uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
305  int last_key_index; ///< index of last key frame
306  uint64_t duration;
307  AVTimecode tc; ///< timecode context
309  int timecode_base; ///< rounded time code base (25 or 30)
310  int edit_unit_byte_count; ///< fixed edit unit byte count
311  uint64_t body_offset;
312  uint32_t instance_number;
313  uint8_t umid[16]; ///< unique material identifier
315 } MXFContext;
316 
317 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
318 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
319 
320 /**
321  * complete key for operation pattern, partitions, and primer pack
322  */
323 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
324 static const uint8_t opatom_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x02,0x01,0x10,0x03,0x00,0x00 };
325 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
326 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
327 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
328 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
329 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
330 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
331 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
332 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
333 
334 /**
335  * partial key for header metadata
336  */
337 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
338 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
339 
340 /**
341  * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
342  */
344  // preface set
345  { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
346  { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
347  { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
348  { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
349  { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
350  { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
351  { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
352  { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
353  // Identification
354  { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
355  { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
356  { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
357  { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
358  { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
359  { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
360  // Content Storage
361  { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
362  { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
363  // Essence Container Data
364  { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
365  { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
366  // Package
367  { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
368  { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
369  { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
370  { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
371  { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
372  // Track
373  { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
374  { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
375  { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
376  { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
377  { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
378  // Sequence
379  { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
380  { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
381  { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
382  // Source Clip
383  { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
384  { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
385  { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
386  // Timecode Component
387  { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
388  { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
389  { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
390  // File Descriptor
391  { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
392  { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
393  { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
394  { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
395  // Generic Picture Essence Descriptor
396  { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
397  { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
398  { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
399  { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
400  { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
401  { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
402  { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
403  { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
404  { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
405  // CDCI Picture Essence Descriptor
406  { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
407  { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
408  // Generic Sound Essence Descriptor
409  { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
410  { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
411  { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
412  { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
413  { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
414  // Index Table Segment
415  { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
416  { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
417  { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
418  { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
419  { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
420  { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
421  { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
422  { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
423  // MPEG video Descriptor
424  { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
425  { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
426  // Wave Audio Essence Descriptor
427  { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
428  { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
429 };
430 
432 {
433  avio_write(pb, uuid_base, 12);
434  avio_wb16(pb, type);
435  avio_wb16(pb, value);
436 }
437 
439 {
440  MXFContext *mxf = s->priv_data;
441  avio_write(s->pb, umid_ul, 13);
442  avio_wb24(s->pb, mxf->instance_number);
443  avio_write(s->pb, mxf->umid, 15);
444  avio_w8(s->pb, type);
445 }
446 
447 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
448 {
449  avio_wb32(pb, ref_count);
450  avio_wb32(pb, 16);
451 }
452 
453 static int klv_ber_length(uint64_t len)
454 {
455  if (len < 128)
456  return 1;
457  else
458  return (av_log2(len) >> 3) + 2;
459 }
460 
461 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
462 {
463  // Determine the best BER size
464  int size;
465  if (len < 128) {
466  //short form
467  avio_w8(pb, len);
468  return 1;
469  }
470 
471  size = (av_log2(len) >> 3) + 1;
472 
473  // long form
474  avio_w8(pb, 0x80 + size);
475  while(size) {
476  size--;
477  avio_w8(pb, len >> 8 * size & 0xff);
478  }
479  return 0;
480 }
481 
483 {
484  avio_w8(pb, 0x80 + 3);
485  avio_wb24(pb, len);
486 }
487 
488 static void klv_encode_ber9_length(AVIOContext *pb, uint64_t len)
489 {
490  avio_w8(pb, 0x80 + 8);
491  avio_wb64(pb, len);
492 }
493 
494 /*
495  * Get essence container ul index
496  */
498 {
499  int i;
500  for (i = 0; mxf_essence_mappings[i].id; i++)
501  if (mxf_essence_mappings[i].id == id)
502  return mxf_essence_mappings[i].index;
503  return -1;
504 }
505 
507 {
508  AVIOContext *pb = s->pb;
509  int local_tag_number, i = 0;
510 
511  local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
512 
513  avio_write(pb, primer_pack_key, 16);
514  klv_encode_ber_length(pb, local_tag_number * 18 + 8);
515 
516  avio_wb32(pb, local_tag_number); // local_tag num
517  avio_wb32(pb, 18); // item size, always 18 according to the specs
518 
519  for (i = 0; i < local_tag_number; i++) {
520  avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
521  avio_write(pb, mxf_local_tag_batch[i].uid, 16);
522  }
523 }
524 
525 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
526 {
527  avio_wb16(pb, tag);
528  avio_wb16(pb, size);
529 }
530 
531 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
532 {
534  avio_wb24(pb, value);
535 }
536 
538 {
539  int i;
540 
541  for (i = 0; i < s->nb_streams; i++) {
542  AVStream *st = s->streams[i];
543  av_freep(&st->priv_data);
544  }
545 }
546 
548 {
550  while (uls->uid[0]) {
551  if (type == uls->id)
552  break;
553  uls++;
554  }
555  return uls;
556 }
557 
558 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
559 #define DESCRIPTOR_COUNT(essence_container_count) \
560  (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
561 
563 {
564  MXFContext *c = s->priv_data;
565  AVIOContext *pb = s->pb;
566  int i;
567 
569  av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
570  for (i = 0; i < c->essence_container_count; i++) {
571  MXFStreamContext *sc = s->streams[i]->priv_data;
572  avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
573  }
574 
575  if (c->essence_container_count > 1)
576  avio_write(pb, multiple_desc_ul, 16);
577 }
578 
580 {
581  MXFContext *mxf = s->priv_data;
582  AVIOContext *pb = s->pb;
583 
584  mxf_write_metadata_key(pb, 0x012f00);
585  PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
587 
588  // write preface set uid
589  mxf_write_local_tag(pb, 16, 0x3C0A);
590  mxf_write_uuid(pb, Preface, 0);
591  PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
592 
593  // last modified date
594  mxf_write_local_tag(pb, 8, 0x3B02);
595  avio_wb64(pb, mxf->timestamp);
596 
597  // write version
598  mxf_write_local_tag(pb, 2, 0x3B05);
599  avio_wb16(pb, 258); // v1.2
600 
601  // write identification_refs
602  mxf_write_local_tag(pb, 16 + 8, 0x3B06);
603  mxf_write_refs_count(pb, 1);
605 
606  // write content_storage_refs
607  mxf_write_local_tag(pb, 16, 0x3B03);
609 
610  // operational pattern
611  mxf_write_local_tag(pb, 16, 0x3B09);
612  if (s->oformat == &ff_mxf_opatom_muxer)
613  avio_write(pb, opatom_ul, 16);
614  else
615  avio_write(pb, op1a_ul, 16);
616 
617  // write essence_container_refs
618  mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
620 
621  // write dm_scheme_refs
622  mxf_write_local_tag(pb, 8, 0x3B0B);
623  avio_wb64(pb, 0);
624 }
625 
626 /*
627  * Write a local tag containing an ascii string as utf-16
628  */
629 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
630 {
631  int i, size = strlen(value);
632  mxf_write_local_tag(pb, size*2, tag);
633  for (i = 0; i < size; i++)
634  avio_wb16(pb, value[i]);
635 }
636 
638 {
639  MXFContext *mxf = s->priv_data;
640  AVIOContext *pb = s->pb;
641  const char *company = "FFmpeg";
642  const char *product = s->oformat != &ff_mxf_opatom_muxer ? "OP1a Muxer" : "OPAtom Muxer";
643  const char *version;
644  int length;
645 
646  mxf_write_metadata_key(pb, 0x013000);
647  PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
648 
649  version = s->flags & AVFMT_FLAG_BITEXACT ?
651  length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
652  klv_encode_ber_length(pb, length);
653 
654  // write uid
655  mxf_write_local_tag(pb, 16, 0x3C0A);
657  PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
658 
659  // write generation uid
660  mxf_write_local_tag(pb, 16, 0x3C09);
662 
663  mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
664  mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
665  mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
666 
667  // write product uid
668  mxf_write_local_tag(pb, 16, 0x3C05);
670 
671  // modification date
672  mxf_write_local_tag(pb, 8, 0x3C06);
673  avio_wb64(pb, mxf->timestamp);
674 }
675 
677 {
678  AVIOContext *pb = s->pb;
679 
680  mxf_write_metadata_key(pb, 0x011800);
681  PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
682  klv_encode_ber_length(pb, 92);
683 
684  // write uid
685  mxf_write_local_tag(pb, 16, 0x3C0A);
687  PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
688 
689  // write package reference
690  mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
691  mxf_write_refs_count(pb, 2);
694 
695  // write essence container data
696  mxf_write_local_tag(pb, 8 + 16, 0x1902);
697  mxf_write_refs_count(pb, 1);
699 }
700 
702 {
703  MXFContext *mxf = s->priv_data;
704  AVIOContext *pb = s->pb;
705  MXFStreamContext *sc = st->priv_data;
706 
707  mxf_write_metadata_key(pb, 0x013b00);
708  PRINT_KEY(s, "track key", pb->buf_ptr - 16);
709  klv_encode_ber_length(pb, 80);
710 
711  // write track uid
712  mxf_write_local_tag(pb, 16, 0x3C0A);
713  mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
714  PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
715 
716  // write track id
717  mxf_write_local_tag(pb, 4, 0x4801);
718  avio_wb32(pb, st->index+2);
719 
720  // write track number
721  mxf_write_local_tag(pb, 4, 0x4804);
722  if (type == MaterialPackage)
723  avio_wb32(pb, 0); // track number of material package is 0
724  else
725  avio_write(pb, sc->track_essence_element_key + 12, 4);
726 
727  mxf_write_local_tag(pb, 8, 0x4B01);
728  avio_wb32(pb, mxf->time_base.den);
729  avio_wb32(pb, mxf->time_base.num);
730 
731  // write origin
732  mxf_write_local_tag(pb, 8, 0x4B02);
733  avio_wb64(pb, 0);
734 
735  // write sequence refs
736  mxf_write_local_tag(pb, 16, 0x4803);
738 }
739 
740 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 };
741 
743 {
744  MXFContext *mxf = s->priv_data;
745  AVIOContext *pb = s->pb;
746 
747  // find data define uls
748  mxf_write_local_tag(pb, 16, 0x0201);
749  if (st == mxf->timecode_track)
751  else {
752  const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
753  avio_write(pb, data_def_ul->uid, 16);
754  }
755 
756  // write duration
757  mxf_write_local_tag(pb, 8, 0x0202);
758  avio_wb64(pb, mxf->duration);
759 }
760 
762 {
763  MXFContext *mxf = s->priv_data;
764  AVIOContext *pb = s->pb;
765  enum MXFMetadataSetType component;
766 
767  mxf_write_metadata_key(pb, 0x010f00);
768  PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
769  klv_encode_ber_length(pb, 80);
770 
771  mxf_write_local_tag(pb, 16, 0x3C0A);
773 
774  PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
776 
777  // write structural component
778  mxf_write_local_tag(pb, 16 + 8, 0x1001);
779  mxf_write_refs_count(pb, 1);
780  if (st == mxf->timecode_track)
781  component = TimecodeComponent;
782  else
783  component = SourceClip;
784  if (type == SourcePackage)
785  component += TypeBottom;
786  mxf_write_uuid(pb, component, st->index);
787 }
788 
790 {
791  MXFContext *mxf = s->priv_data;
792  AVIOContext *pb = s->pb;
793 
794  mxf_write_metadata_key(pb, 0x011400);
795  klv_encode_ber_length(pb, 75);
796 
797  // UID
798  mxf_write_local_tag(pb, 16, 0x3C0A);
801 
803 
804  // Start Time Code
805  mxf_write_local_tag(pb, 8, 0x1501);
806  avio_wb64(pb, mxf->tc.start);
807 
808  // Rounded Time Code Base
809  mxf_write_local_tag(pb, 2, 0x1502);
810  avio_wb16(pb, mxf->timecode_base);
811 
812  // Drop Frame
813  mxf_write_local_tag(pb, 1, 0x1503);
814  avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
815 }
816 
818 {
819  AVIOContext *pb = s->pb;
820  int i;
821 
822  mxf_write_metadata_key(pb, 0x011100);
823  PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
824  klv_encode_ber_length(pb, 108);
825 
826  // write uid
827  mxf_write_local_tag(pb, 16, 0x3C0A);
829 
830  PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
832 
833  // write start_position
834  mxf_write_local_tag(pb, 8, 0x1201);
835  avio_wb64(pb, 0);
836 
837  // write source package uid, end of the reference
838  mxf_write_local_tag(pb, 32, 0x1101);
839  if (type == SourcePackage) {
840  for (i = 0; i < 4; i++)
841  avio_wb64(pb, 0);
842  } else
843  mxf_write_umid(s, 1);
844 
845  // write source track id
846  mxf_write_local_tag(pb, 4, 0x1102);
847  if (type == SourcePackage)
848  avio_wb32(pb, 0);
849  else
850  avio_wb32(pb, st->index+2);
851 }
852 
854 {
855  MXFContext *mxf = s->priv_data;
856  AVIOContext *pb = s->pb;
857  const uint8_t *ul;
858  int i;
859 
860  mxf_write_metadata_key(pb, 0x014400);
861  PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
862  klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
863 
864  mxf_write_local_tag(pb, 16, 0x3C0A);
866  PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
867 
868  // write sample rate
869  mxf_write_local_tag(pb, 8, 0x3001);
870  avio_wb32(pb, mxf->time_base.den);
871  avio_wb32(pb, mxf->time_base.num);
872 
873  // write essence container ul
874  mxf_write_local_tag(pb, 16, 0x3004);
875  if (mxf->essence_container_count > 1)
876  ul = multiple_desc_ul;
877  else {
878  MXFStreamContext *sc = s->streams[0]->priv_data;
879  ul = mxf_essence_container_uls[sc->index].container_ul;
880  }
881  avio_write(pb, ul, 16);
882 
883  // write sub descriptor refs
884  mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
886  for (i = 0; i < s->nb_streams; i++)
888 }
889 
890 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
891 {
892  MXFContext *mxf = s->priv_data;
893  MXFStreamContext *sc = st->priv_data;
894  AVIOContext *pb = s->pb;
895 
896  avio_write(pb, key, 16);
897  klv_encode_ber4_length(pb, size+20+8+12+20);
898 
899  mxf_write_local_tag(pb, 16, 0x3C0A);
901 
902  mxf_write_local_tag(pb, 4, 0x3006);
903  avio_wb32(pb, st->index+2);
904 
905  mxf_write_local_tag(pb, 8, 0x3001);
906  avio_wb32(pb, mxf->time_base.den);
907  avio_wb32(pb, mxf->time_base.num);
908 
909  mxf_write_local_tag(pb, 16, 0x3004);
910  avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
911 }
912 
913 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
914 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
915 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
916 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
917 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
918 
919 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
920 {
921  MXFStreamContext *sc = st->priv_data;
922  AVIOContext *pb = s->pb;
923  int stored_height = (st->codec->height+15)/16*16;
924  int display_height;
925  int f1, f2;
926  unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
927  if (sc->interlaced && sc->field_dominance)
928  desc_size += 5;
929 
930  mxf_write_generic_desc(s, st, key, desc_size);
931 
932  mxf_write_local_tag(pb, 4, 0x3203);
933  avio_wb32(pb, st->codec->width);
934 
935  mxf_write_local_tag(pb, 4, 0x3202);
936  avio_wb32(pb, stored_height>>sc->interlaced);
937 
938  mxf_write_local_tag(pb, 4, 0x3209);
939  avio_wb32(pb, st->codec->width);
940 
941  if (st->codec->height == 608) // PAL + VBI
942  display_height = 576;
943  else if (st->codec->height == 512) // NTSC + VBI
944  display_height = 486;
945  else
946  display_height = st->codec->height;
947 
948  mxf_write_local_tag(pb, 4, 0x3208);
949  avio_wb32(pb, display_height>>sc->interlaced);
950 
951  // component depth
952  mxf_write_local_tag(pb, 4, 0x3301);
953  avio_wb32(pb, sc->component_depth);
954 
955  // horizontal subsampling
956  mxf_write_local_tag(pb, 4, 0x3302);
957  avio_wb32(pb, 2);
958 
959  // frame layout
960  mxf_write_local_tag(pb, 1, 0x320C);
961  avio_w8(pb, sc->interlaced);
962 
963  // video line map
964  switch (st->codec->height) {
965  case 576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
966  case 608: f1 = 7; f2 = 320; break;
967  case 480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
968  case 512: f1 = 7; f2 = 270; break;
969  case 720: f1 = 26; f2 = 0; break; // progressive
970  case 1080: f1 = 21; f2 = 584; break;
971  default: f1 = 0; f2 = 0; break;
972  }
973 
974  if (!sc->interlaced) {
975  f2 = 0;
976  f1 *= 2;
977  }
978 
979  mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
980  avio_wb32(pb, sc->interlaced ? 2 : 1);
981  avio_wb32(pb, 4);
982  avio_wb32(pb, f1);
983  if (sc->interlaced)
984  avio_wb32(pb, f2);
985 
986  mxf_write_local_tag(pb, 8, 0x320E);
987  avio_wb32(pb, sc->aspect_ratio.num);
988  avio_wb32(pb, sc->aspect_ratio.den);
989 
990  mxf_write_local_tag(pb, 16, 0x3201);
991  avio_write(pb, *sc->codec_ul, 16);
992 
993  if (sc->interlaced && sc->field_dominance) {
994  mxf_write_local_tag(pb, 1, 0x3212);
995  avio_w8(pb, sc->field_dominance);
996  }
997 
998 }
999 
1001 {
1003 }
1004 
1006 {
1007  AVIOContext *pb = s->pb;
1008  MXFStreamContext *sc = st->priv_data;
1009  int profile_and_level = (st->codec->profile<<4) | st->codec->level;
1010 
1011  if (st->codec->codec_id != AV_CODEC_ID_H264) {
1013 
1014  // bit rate
1015  mxf_write_local_tag(pb, 4, 0x8000);
1016  avio_wb32(pb, sc->video_bit_rate);
1017 
1018  // profile and level
1019  mxf_write_local_tag(pb, 1, 0x8007);
1020  if (!st->codec->profile)
1021  profile_and_level |= 0x80; // escape bit
1022  avio_w8(pb, profile_and_level);
1023  } else {
1025  }
1026 }
1027 
1028 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1029 {
1030  AVIOContext *pb = s->pb;
1031  MXFContext *mxf = s->priv_data;
1032  int show_warnings = !mxf->footer_partition_offset;
1033 
1034  mxf_write_generic_desc(s, st, key, size+5+12+8+8);
1035 
1036  // audio locked
1037  mxf_write_local_tag(pb, 1, 0x3D02);
1038  avio_w8(pb, 1);
1039 
1040  // write audio sampling rate
1041  mxf_write_local_tag(pb, 8, 0x3D03);
1042  avio_wb32(pb, st->codec->sample_rate);
1043  avio_wb32(pb, 1);
1044 
1045  mxf_write_local_tag(pb, 4, 0x3D07);
1046  if (mxf->channel_count == -1) {
1047  if (show_warnings && (s->oformat == &ff_mxf_d10_muxer) && (st->codec->channels != 4) && (st->codec->channels != 8))
1048  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");
1049  avio_wb32(pb, st->codec->channels);
1050  } else if (s->oformat == &ff_mxf_d10_muxer) {
1051  if (show_warnings && (mxf->channel_count < st->codec->channels))
1052  av_log(s, AV_LOG_WARNING, "d10_channelcount < actual number of audio channels : some channels will be discarded\n");
1053  if (show_warnings && (mxf->channel_count != 4) && (mxf->channel_count != 8))
1054  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");
1055  avio_wb32(pb, mxf->channel_count);
1056  } else {
1057  if (show_warnings && mxf->channel_count != -1)
1058  av_log(s, AV_LOG_ERROR, "-d10_channelcount requires MXF D-10 and will be ignored\n");
1059  avio_wb32(pb, st->codec->channels);
1060  }
1061 
1062  mxf_write_local_tag(pb, 4, 0x3D01);
1064 }
1065 
1066 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1067 {
1068  AVIOContext *pb = s->pb;
1069 
1070  mxf_write_generic_sound_common(s, st, key, size+6+8);
1071 
1072  mxf_write_local_tag(pb, 2, 0x3D0A);
1073  avio_wb16(pb, st->codec->block_align);
1074 
1075  // avg bytes per sec
1076  mxf_write_local_tag(pb, 4, 0x3D09);
1077  avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1078 }
1079 
1081 {
1083 }
1084 
1086 {
1088 }
1089 
1091 {
1093 }
1094 
1096 {
1097  MXFContext *mxf = s->priv_data;
1098  AVIOContext *pb = s->pb;
1099  int i, track_count = s->nb_streams+1;
1100 
1101  if (type == MaterialPackage) {
1102  mxf_write_metadata_key(pb, 0x013600);
1103  PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1104  klv_encode_ber_length(pb, 92 + 16*track_count);
1105  } else {
1106  mxf_write_metadata_key(pb, 0x013700);
1107  PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1108  klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1109  }
1110 
1111  // write uid
1112  mxf_write_local_tag(pb, 16, 0x3C0A);
1113  mxf_write_uuid(pb, type, 0);
1114  av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1115  PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1116 
1117  // write package umid
1118  mxf_write_local_tag(pb, 32, 0x4401);
1119  mxf_write_umid(s, type == SourcePackage);
1120  PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1121 
1122  // package creation date
1123  mxf_write_local_tag(pb, 8, 0x4405);
1124  avio_wb64(pb, mxf->timestamp);
1125 
1126  // package modified date
1127  mxf_write_local_tag(pb, 8, 0x4404);
1128  avio_wb64(pb, mxf->timestamp);
1129 
1130  // write track refs
1131  mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1132  mxf_write_refs_count(pb, track_count);
1133  mxf_write_uuid(pb, type == MaterialPackage ? Track :
1134  Track + TypeBottom, -1); // timecode track
1135  for (i = 0; i < s->nb_streams; i++)
1136  mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1137 
1138  // write multiple descriptor reference
1139  if (type == SourcePackage) {
1140  mxf_write_local_tag(pb, 16, 0x4701);
1141  if (s->nb_streams > 1) {
1144  } else
1145  mxf_write_uuid(pb, SubDescriptor, 0);
1146  }
1147 
1148  // write timecode track
1149  mxf_write_track(s, mxf->timecode_track, type);
1150  mxf_write_sequence(s, mxf->timecode_track, type);
1152 
1153  for (i = 0; i < s->nb_streams; i++) {
1154  AVStream *st = s->streams[i];
1155  mxf_write_track(s, st, type);
1156  mxf_write_sequence(s, st, type);
1157  mxf_write_structural_component(s, st, type);
1158 
1159  if (type == SourcePackage) {
1160  MXFStreamContext *sc = st->priv_data;
1161  mxf_essence_container_uls[sc->index].write_desc(s, st);
1162  }
1163  }
1164 }
1165 
1167 {
1168  AVIOContext *pb = s->pb;
1169 
1170  mxf_write_metadata_key(pb, 0x012300);
1171  klv_encode_ber_length(pb, 72);
1172 
1173  mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1175 
1176  mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1177  mxf_write_umid(s, 1);
1178 
1179  mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1180  avio_wb32(pb, 1);
1181 
1182  mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1183  avio_wb32(pb, 2);
1184 
1185  return 0;
1186 }
1187 
1189 {
1190  mxf_write_preface(s);
1196  return 0;
1197 }
1198 
1199 static unsigned klv_fill_size(uint64_t size)
1200 {
1201  unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1202  if (pad < 20) // smallest fill item possible
1203  return pad + KAG_SIZE;
1204  else
1205  return pad & (KAG_SIZE-1);
1206 }
1207 
1209 {
1210  MXFContext *mxf = s->priv_data;
1211  AVIOContext *pb = s->pb;
1212  int i, j, temporal_reordering = 0;
1213  int key_index = mxf->last_key_index;
1214 
1215  av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1216 
1217  if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1218  return;
1219 
1221 
1222  if (mxf->edit_unit_byte_count) {
1223  klv_encode_ber_length(pb, 80);
1224  } else {
1225  klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1226  12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1227  }
1228 
1229  // instance id
1230  mxf_write_local_tag(pb, 16, 0x3C0A);
1232 
1233  // index edit rate
1234  mxf_write_local_tag(pb, 8, 0x3F0B);
1235  avio_wb32(pb, mxf->time_base.den);
1236  avio_wb32(pb, mxf->time_base.num);
1237 
1238  // index start position
1239  mxf_write_local_tag(pb, 8, 0x3F0C);
1241 
1242  // index duration
1243  mxf_write_local_tag(pb, 8, 0x3F0D);
1244  if (mxf->edit_unit_byte_count)
1245  avio_wb64(pb, 0); // index table covers whole container
1246  else
1247  avio_wb64(pb, mxf->edit_units_count);
1248 
1249  // edit unit byte count
1250  mxf_write_local_tag(pb, 4, 0x3F05);
1251  avio_wb32(pb, mxf->edit_unit_byte_count);
1252 
1253  // index sid
1254  mxf_write_local_tag(pb, 4, 0x3F06);
1255  avio_wb32(pb, 2);
1256 
1257  // body sid
1258  mxf_write_local_tag(pb, 4, 0x3F07);
1259  avio_wb32(pb, 1);
1260 
1261  if (!mxf->edit_unit_byte_count) {
1262  // real slice count - 1
1263  mxf_write_local_tag(pb, 1, 0x3F08);
1264  avio_w8(pb, mxf->slice_count);
1265 
1266  // delta entry array
1267  mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1268  avio_wb32(pb, s->nb_streams+1); // num of entries
1269  avio_wb32(pb, 6); // size of one entry
1270  // write system item delta entry
1271  avio_w8(pb, 0);
1272  avio_w8(pb, 0); // slice entry
1273  avio_wb32(pb, 0); // element delta
1274  for (i = 0; i < s->nb_streams; i++) {
1275  AVStream *st = s->streams[i];
1276  MXFStreamContext *sc = st->priv_data;
1277  avio_w8(pb, sc->temporal_reordering);
1278  if (sc->temporal_reordering)
1279  temporal_reordering = 1;
1280  if (i == 0) { // video track
1281  avio_w8(pb, 0); // slice number
1282  avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1283  } else { // audio track
1284  unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1285  audio_frame_size += klv_fill_size(audio_frame_size);
1286  avio_w8(pb, 1);
1287  avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1288  }
1289  }
1290 
1291  mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1292  avio_wb32(pb, mxf->edit_units_count); // num of entries
1293  avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1294 
1295  for (i = 0; i < mxf->edit_units_count; i++) {
1296  int temporal_offset = 0;
1297 
1298  if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1299  mxf->last_key_index = key_index;
1300  key_index = i;
1301  }
1302 
1303  if (temporal_reordering) {
1304  int pic_num_in_gop = i - key_index;
1305  if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1306  for (j = key_index; j < mxf->edit_units_count; j++) {
1307  if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1308  break;
1309  }
1310  if (j == mxf->edit_units_count)
1311  av_log(s, AV_LOG_WARNING, "missing frames\n");
1312  temporal_offset = j - key_index - pic_num_in_gop;
1313  }
1314  }
1315  avio_w8(pb, temporal_offset);
1316 
1317  if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1318  avio_w8(pb, mxf->last_key_index - i);
1319  } else {
1320  avio_w8(pb, key_index - i); // key frame offset
1321  if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1322  mxf->last_key_index = key_index;
1323  }
1324 
1325  if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1326  mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1327  mxf->index_entries[i].flags |= 0x80; // random access
1328  avio_w8(pb, mxf->index_entries[i].flags);
1329  // stream offset
1330  avio_wb64(pb, mxf->index_entries[i].offset);
1331  if (s->nb_streams > 1)
1332  avio_wb32(pb, mxf->index_entries[i].slice_offset);
1333  }
1334 
1335  mxf->last_key_index = key_index - mxf->edit_units_count;
1337  mxf->edit_units_count = 0;
1338  }
1339 }
1340 
1342 {
1343  unsigned pad = klv_fill_size(avio_tell(s->pb));
1344  if (pad) {
1345  avio_write(s->pb, klv_fill_key, 16);
1346  pad -= 16 + 4;
1347  klv_encode_ber4_length(s->pb, pad);
1348  ffio_fill(s->pb, 0, pad);
1349  av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1350  }
1351 }
1352 
1353 static int mxf_write_partition(AVFormatContext *s, int bodysid,
1354  int indexsid,
1355  const uint8_t *key, int write_metadata)
1356 {
1357  MXFContext *mxf = s->priv_data;
1358  AVIOContext *pb = s->pb;
1359  int64_t header_byte_count_offset;
1360  unsigned index_byte_count = 0;
1361  uint64_t partition_offset = avio_tell(pb);
1362  int err;
1363 
1364  if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1365  index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1366  12+mxf->edit_units_count*(11+mxf->slice_count*4);
1367  else if (mxf->edit_unit_byte_count && indexsid)
1368  index_byte_count = 80;
1369 
1370  if (index_byte_count) {
1371  // add encoded ber length
1372  index_byte_count += 16 + klv_ber_length(index_byte_count);
1373  index_byte_count += klv_fill_size(index_byte_count);
1374  }
1375 
1376  if (key && !memcmp(key, body_partition_key, 16)) {
1378  sizeof(*mxf->body_partition_offset))) < 0) {
1379  mxf->body_partitions_count = 0;
1380  return err;
1381  }
1382  mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1383  }
1384 
1385  // write klv
1386  if (key)
1387  avio_write(pb, key, 16);
1388  else
1389  avio_write(pb, body_partition_key, 16);
1390 
1392 
1393  // write partition value
1394  avio_wb16(pb, 1); // majorVersion
1395  avio_wb16(pb, 2); // minorVersion
1396  avio_wb32(pb, KAG_SIZE); // KAGSize
1397 
1398  avio_wb64(pb, partition_offset); // ThisPartition
1399 
1400  if (key && !memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1401  avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1402  else if (key && !memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1403  avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1404  else
1405  avio_wb64(pb, 0);
1406 
1407  avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1408 
1409  // set offset
1410  header_byte_count_offset = avio_tell(pb);
1411  avio_wb64(pb, 0); // headerByteCount, update later
1412 
1413  // indexTable
1414  avio_wb64(pb, index_byte_count); // indexByteCount
1415  avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1416 
1417  // BodyOffset
1418  if (bodysid && mxf->edit_units_count && mxf->body_partitions_count && s->oformat != &ff_mxf_opatom_muxer)
1419  avio_wb64(pb, mxf->body_offset);
1420  else
1421  avio_wb64(pb, 0);
1422 
1423  avio_wb32(pb, bodysid); // bodySID
1424 
1425  // operational pattern
1426  if (s->oformat == &ff_mxf_opatom_muxer)
1427  avio_write(pb, opatom_ul, 16);
1428  else
1429  avio_write(pb, op1a_ul, 16);
1430 
1431  // essence container
1433 
1434  if (write_metadata) {
1435  // mark the start of the headermetadata and calculate metadata size
1436  int64_t pos, start;
1437  unsigned header_byte_count;
1438 
1439  mxf_write_klv_fill(s);
1440  start = avio_tell(s->pb);
1443  pos = avio_tell(s->pb);
1444  header_byte_count = pos - start + klv_fill_size(pos);
1445 
1446  // update header_byte_count
1447  avio_seek(pb, header_byte_count_offset, SEEK_SET);
1448  avio_wb64(pb, header_byte_count);
1449  avio_seek(pb, pos, SEEK_SET);
1450  }
1451 
1452  if(key)
1453  avio_flush(pb);
1454 
1455  return 0;
1456 }
1457 
1459 AVPacket *pkt)
1460 {
1461  MXFContext *mxf = s->priv_data;
1462  MXFStreamContext *sc = st->priv_data;
1463  int i, cid;
1464  uint8_t* header_cid;
1465  int frame_size = 0;
1466 
1467  if (mxf->header_written)
1468  return 1;
1469 
1470  if (pkt->size < 43)
1471  return -1;
1472 
1473  header_cid = pkt->data + 0x28;
1474  cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1475 
1476  if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
1477  return -1;
1478 
1479  switch (cid) {
1480  case 1235:
1481  sc->index = 24;
1482  sc->component_depth = 10;
1483  break;
1484  case 1237:
1485  sc->index = 25;
1486  break;
1487  case 1238:
1488  sc->index = 26;
1489  break;
1490  case 1241:
1491  sc->index = 27;
1492  sc->component_depth = 10;
1493  break;
1494  case 1242:
1495  sc->index = 28;
1496  break;
1497  case 1243:
1498  sc->index = 29;
1499  break;
1500  case 1250:
1501  sc->index = 30;
1502  sc->component_depth = 10;
1503  break;
1504  case 1251:
1505  sc->index = 31;
1506  break;
1507  case 1252:
1508  sc->index = 32;
1509  break;
1510  case 1253:
1511  sc->index = 33;
1512  break;
1513  default:
1514  return -1;
1515  }
1516 
1517  sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1518  sc->aspect_ratio = (AVRational){ 16, 9 };
1519 
1520  if(s->oformat == &ff_mxf_opatom_muxer){
1522  return 1;
1523  }
1524 
1526  for (i = 0; i < s->nb_streams; i++) {
1527  AVStream *st = s->streams[i];
1528  MXFStreamContext *sc = st->priv_data;
1529  if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1530  mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1532  } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1533  mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1535  }
1536  }
1537 
1538  return 1;
1539 }
1540 
1542 {
1543  MXFContext *mxf = s->priv_data;
1544  MXFStreamContext *sc = st->priv_data;
1545  uint8_t *vs_pack, *vsc_pack;
1546  int i, ul_index, frame_size, stype, pal;
1547 
1548  if (mxf->header_written)
1549  return 1;
1550 
1551  // Check for minimal frame size
1552  if (pkt->size < 120000)
1553  return -1;
1554 
1555  vs_pack = pkt->data + 80*5 + 48;
1556  vsc_pack = pkt->data + 80*5 + 53;
1557  stype = vs_pack[3] & 0x1f;
1558  pal = (vs_pack[3] >> 5) & 0x1;
1559 
1560  if ((vs_pack[2] & 0x07) == 0x02)
1561  sc->aspect_ratio = (AVRational){ 16, 9 };
1562  else
1563  sc->aspect_ratio = (AVRational){ 4, 3 };
1564 
1565  sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1566  // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1567  // and set field dominance accordingly
1568  // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1569 
1570  switch (stype) {
1571  case 0x18: // DV100 720p
1572  ul_index = 6 + pal;
1573  frame_size = pal ? 288000 : 240000;
1574  if (sc->interlaced) {
1575  av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1576  sc->interlaced = 0;
1577  }
1578  break;
1579  case 0x14: // DV100 1080i
1580  ul_index = 4 + pal;
1581  frame_size = pal ? 576000 : 480000;
1582  break;
1583  case 0x04: // DV50
1584  ul_index = 2 + pal;
1585  frame_size = pal ? 288000 : 240000;
1586  break;
1587  default: // DV25
1588  ul_index = 0 + pal;
1589  frame_size = pal ? 144000 : 120000;
1590  }
1591 
1592  sc->index = ul_index + 16;
1593  sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1594 
1595  if(s->oformat == &ff_mxf_opatom_muxer) {
1597  return 1;
1598  }
1599 
1601  for (i = 0; i < s->nb_streams; i++) {
1602  AVStream *st = s->streams[i];
1603  MXFStreamContext *sc = st->priv_data;
1604  if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1605  mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1607  } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1608  mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1610  }
1611  }
1612 
1613  return 1;
1614 }
1615 
1616 static const struct {
1619  int profile;
1621 } mxf_h264_codec_uls[] = {
1622  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x20,0x01 }, 0, 110, 0 }, // AVC High 10 Intra
1623  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x01 }, 232960, 0, 1 }, // AVC Intra 50 1080i60
1624  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x02 }, 281088, 0, 1 }, // AVC Intra 50 1080i50
1625  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x03 }, 232960, 0, 0 }, // AVC Intra 50 1080p30
1626  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x04 }, 281088, 0, 0 }, // AVC Intra 50 1080p25
1627  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x08 }, 116736, 0, 0 }, // AVC Intra 50 720p60
1628  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x09 }, 140800, 0, 0 }, // AVC Intra 50 720p50
1629  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x30,0x01 }, 0, 122, 0 }, // AVC High 422 Intra
1630  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x01 }, 472576, 0, 1 }, // AVC Intra 100 1080i60
1631  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x02 }, 568832, 0, 1 }, // AVC Intra 100 1080i50
1632  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x03 }, 472576, 0, 0 }, // AVC Intra 100 1080p30
1633  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x04 }, 568832, 0, 0 }, // AVC Intra 100 1080p25
1634  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x08 }, 236544, 0, 0 }, // AVC Intra 100 720p60
1635  {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x09 }, 284672, 0, 0 }, // AVC Intra 100 720p50
1636 };
1637 
1639  AVPacket *pkt, MXFIndexEntry *e)
1640 {
1641  MXFContext *mxf = s->priv_data;
1642  MXFStreamContext *sc = st->priv_data;
1643  static const int mxf_h264_num_codec_uls = sizeof(mxf_h264_codec_uls) / sizeof(mxf_h264_codec_uls[0]);
1644  const uint8_t *buf = pkt->data;
1645  const uint8_t *buf_end = pkt->data + pkt->size;
1646  uint32_t state = -1;
1647  int extra_size = 512; // support AVC Intra files without SPS/PPS header
1648  int i, frame_size;
1649  uint8_t uid_found;
1650 
1651  if (pkt->size > extra_size)
1652  buf_end -= pkt->size - extra_size; // no need to parse beyond SPS/PPS header
1653 
1654  for (;;) {
1655  buf = avpriv_find_start_code(buf, buf_end, &state);
1656  if (buf >= buf_end)
1657  break;
1658  --buf;
1659  switch (state & 0x1f) {
1660  case NAL_SPS:
1661  st->codec->profile = buf[1];
1662  e->flags |= 0x40;
1663  break;
1664  case NAL_PPS:
1665  if (e->flags & 0x40) { // sequence header present
1666  e->flags |= 0x80; // random access
1667  extra_size = 0;
1668  buf = buf_end;
1669  }
1670  break;
1671  default:
1672  break;
1673  }
1674  }
1675 
1676  if (mxf->header_written)
1677  return 1;
1678 
1679  sc->aspect_ratio = (AVRational){ 16, 9 }; // 16:9 is mandatory for broadcast HD
1680  sc->component_depth = 10; // AVC Intra is always 10 Bit
1681  sc->interlaced = st->codec->field_order != AV_FIELD_PROGRESSIVE ? 1 : 0;
1682  if (sc->interlaced)
1683  sc->field_dominance = 1; // top field first is mandatory for AVC Intra
1684 
1685  uid_found = 0;
1686  frame_size = pkt->size + extra_size;
1687  for (i = 0; i < mxf_h264_num_codec_uls; i++) {
1688  if (frame_size == mxf_h264_codec_uls[i].frame_size && sc->interlaced == mxf_h264_codec_uls[i].interlaced) {
1689  sc->codec_ul = &mxf_h264_codec_uls[i].uid;
1690  return 1;
1691  } else if (st->codec->profile == mxf_h264_codec_uls[i].profile) {
1692  sc->codec_ul = &mxf_h264_codec_uls[i].uid;
1693  uid_found = 1;
1694  }
1695  }
1696 
1697  if (!uid_found) {
1698  av_log(s, AV_LOG_ERROR, "AVC Intra 50/100 supported only\n");
1699  return 0;
1700  }
1701 
1702  return 1;
1703 }
1704 
1705 static const UID mxf_mpeg2_codec_uls[] = {
1706  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1707  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1708  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1709  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1710  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1711  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1712  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1713  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1714  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1715  { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1716 };
1717 
1719 {
1720  int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1721 
1722  if (avctx->profile == 4) { // Main
1723  if (avctx->level == 8) // Main
1724  return &mxf_mpeg2_codec_uls[0+long_gop];
1725  else if (avctx->level == 4) // High
1726  return &mxf_mpeg2_codec_uls[4+long_gop];
1727  else if (avctx->level == 6) // High 14
1728  return &mxf_mpeg2_codec_uls[8+long_gop];
1729  } else if (avctx->profile == 0) { // 422
1730  if (avctx->level == 5) // Main
1731  return &mxf_mpeg2_codec_uls[2+long_gop];
1732  else if (avctx->level == 2) // High
1733  return &mxf_mpeg2_codec_uls[6+long_gop];
1734  }
1735  return NULL;
1736 }
1737 
1739  AVPacket *pkt, MXFIndexEntry *e)
1740 {
1741  MXFStreamContext *sc = st->priv_data;
1742  uint32_t c = -1;
1743  int i;
1744 
1745  for(i = 0; i < pkt->size - 4; i++) {
1746  c = (c<<8) + pkt->data[i];
1747  if (c == 0x1b5) {
1748  if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1749  st->codec->profile = pkt->data[i+1] & 0x07;
1750  st->codec->level = pkt->data[i+2] >> 4;
1751  } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1752  sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1753  if (sc->interlaced)
1754  sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1755  break;
1756  }
1757  } else if (c == 0x1b8) { // gop
1758  if (pkt->data[i+4]>>6 & 0x01) { // closed
1759  sc->closed_gop = 1;
1760  if (e->flags & 0x40) // sequence header present
1761  e->flags |= 0x80; // random access
1762  }
1763  } else if (c == 0x1b3) { // seq
1764  e->flags |= 0x40;
1765  switch ((pkt->data[i+4]>>4) & 0xf) {
1766  case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1767  case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1768  case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1769  default:
1771  st->codec->width, st->codec->height, 1024*1024);
1772  }
1773  } else if (c == 0x100) { // pic
1774  int pict_type = (pkt->data[i+2]>>3) & 0x07;
1775  e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1776  if (pict_type == 2) { // P frame
1777  e->flags |= 0x22;
1778  sc->closed_gop = 0; // reset closed gop, don't matter anymore
1779  } else if (pict_type == 3) { // B frame
1780  if (sc->closed_gop)
1781  e->flags |= 0x13; // only backward prediction
1782  else
1783  e->flags |= 0x33;
1784  sc->temporal_reordering = -1;
1785  } else if (!pict_type) {
1786  av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1787  return 0;
1788  }
1789  }
1790  }
1791  if (s->oformat != &ff_mxf_d10_muxer)
1793  return !!sc->codec_ul;
1794 }
1795 
1796 static uint64_t mxf_parse_timestamp(time_t timestamp)
1797 {
1798  struct tm tmbuf;
1799  struct tm *time = gmtime_r(&timestamp, &tmbuf);
1800  if (!time)
1801  return 0;
1802  return (uint64_t)(time->tm_year+1900) << 48 |
1803  (uint64_t)(time->tm_mon+1) << 40 |
1804  (uint64_t) time->tm_mday << 32 |
1805  time->tm_hour << 24 |
1806  time->tm_min << 16 |
1807  time->tm_sec << 8;
1808 }
1809 
1811 {
1812  MXFContext *mxf = s->priv_data;
1813  uint32_t seed = av_get_random_seed();
1814  uint64_t umid = seed + 0x5294713400000000LL;
1815 
1816  AV_WB64(mxf->umid , umid);
1817  AV_WB64(mxf->umid+8, umid>>8);
1818 
1819  mxf->instance_number = seed & 0xFFFFFF;
1820 }
1821 
1823 {
1824  MXFContext *mxf = s->priv_data;
1825  int i, ret;
1826  uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1827  const MXFSamplesPerFrame *spf = NULL;
1828  AVDictionaryEntry *t;
1829  int64_t timestamp = 0;
1830  AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1831 
1832  if (!s->nb_streams)
1833  return -1;
1834 
1835  if (s->oformat == &ff_mxf_opatom_muxer && s->nb_streams !=1){
1836  av_log(s, AV_LOG_ERROR, "there must be exactly one stream for mxf opatom\n");
1837  return -1;
1838  }
1839 
1840  for (i = 0; i < s->nb_streams; i++) {
1841  AVStream *st = s->streams[i];
1842  MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1843  if (!sc)
1844  return AVERROR(ENOMEM);
1845  st->priv_data = sc;
1846 
1847  if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1848  av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1849  return -1;
1850  }
1851 
1852  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1853  // TODO: should be avg_frame_rate
1854  AVRational rate, tbc = st->time_base;
1855  // Default component depth to 8
1856  sc->component_depth = 8;
1857  mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1858  spf = ff_mxf_get_samples_per_frame(s, tbc);
1859  if (!spf) {
1860  av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1861  tbc.den, tbc.num);
1862  return AVERROR(EINVAL);
1863  }
1864  mxf->time_base = spf->time_base;
1865  rate = av_inv_q(mxf->time_base);
1866  avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1867  if (!tcr)
1868  tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1869  if (tcr)
1870  ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1871  else
1872  ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1873  if (ret < 0)
1874  return ret;
1875  sc->video_bit_rate = st->codec->bit_rate ? st->codec->bit_rate : st->codec->rc_max_rate;
1876  if (s->oformat == &ff_mxf_d10_muxer) {
1877  if (sc->video_bit_rate == 50000000) {
1878  if (mxf->time_base.den == 25) sc->index = 3;
1879  else sc->index = 5;
1880  } else if (sc->video_bit_rate == 40000000) {
1881  if (mxf->time_base.den == 25) sc->index = 7;
1882  else sc->index = 9;
1883  } else if (sc->video_bit_rate == 30000000) {
1884  if (mxf->time_base.den == 25) sc->index = 11;
1885  else sc->index = 13;
1886  } else {
1887  av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1888  return -1;
1889  }
1890 
1891  mxf->edit_unit_byte_count = KAG_SIZE; // system element
1892  mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)sc->video_bit_rate *
1893  mxf->time_base.num / (8*mxf->time_base.den);
1895  mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
1897  }
1898  } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1899  if (st->codec->sample_rate != 48000) {
1900  av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1901  return -1;
1902  }
1903  avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1904  if (s->oformat == &ff_mxf_d10_muxer) {
1905  if (st->index != 1) {
1906  av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1907  return -1;
1908  }
1909  if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1911  av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1912  }
1913  sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1914  } else
1915  mxf->slice_count = 1;
1916  }
1917 
1918  if (!sc->index) {
1920  if (sc->index == -1) {
1921  av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1922  "codec not currently supported in container\n", i);
1923  return -1;
1924  }
1925  }
1926 
1927  sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1928 
1929  memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1930  sc->track_essence_element_key[15] = present[sc->index];
1931  PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1932 
1933  if (!present[sc->index])
1934  mxf->essence_container_count++;
1935  present[sc->index]++;
1936  }
1937 
1938  if (s->oformat == &ff_mxf_d10_muxer || s->oformat == &ff_mxf_opatom_muxer) {
1939  mxf->essence_container_count = 1;
1940  }
1941 
1942  if (!(s->flags & AVFMT_FLAG_BITEXACT))
1943  mxf_gen_umid(s);
1944 
1945  for (i = 0; i < s->nb_streams; i++) {
1946  MXFStreamContext *sc = s->streams[i]->priv_data;
1947  // update element count
1948  sc->track_essence_element_key[13] = present[sc->index];
1949  if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1950  sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1951  else
1952  sc->order = AV_RB32(sc->track_essence_element_key+12);
1953  }
1954 
1955  if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1956  timestamp = ff_iso8601_to_unix_time(t->value);
1957  if (timestamp)
1958  mxf->timestamp = mxf_parse_timestamp(timestamp);
1959  mxf->duration = -1;
1960 
1961  mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1962  if (!mxf->timecode_track)
1963  return AVERROR(ENOMEM);
1965  if (!mxf->timecode_track->priv_data)
1966  return AVERROR(ENOMEM);
1967  mxf->timecode_track->index = -1;
1968 
1969  if (!spf)
1970  spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
1971 
1972  if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
1973  return -1;
1974 
1975  return 0;
1976 }
1977 
1978 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1979 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 };
1980 
1982 {
1983  MXFContext *mxf = s->priv_data;
1984  AVIOContext *pb = s->pb;
1985  unsigned frame;
1986  uint32_t time_code;
1987 
1988  frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1989 
1990  // write system metadata pack
1992  klv_encode_ber4_length(pb, 57);
1993  avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1994  avio_w8(pb, 0x04); // content package rate
1995  avio_w8(pb, 0x00); // content package type
1996  avio_wb16(pb, 0x00); // channel handle
1997  avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
1998  if (mxf->essence_container_count > 1)
1999  avio_write(pb, multiple_desc_ul, 16);
2000  else {
2001  MXFStreamContext *sc = s->streams[0]->priv_data;
2002  avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
2003  }
2004  avio_w8(pb, 0);
2005  avio_wb64(pb, 0);
2006  avio_wb64(pb, 0); // creation date/time stamp
2007 
2008  avio_w8(pb, 0x81); // SMPTE 12M time code
2009  time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
2010  avio_wb32(pb, time_code);
2011  avio_wb32(pb, 0); // binary group data
2012  avio_wb64(pb, 0);
2013 
2014  // write system metadata package set
2016  klv_encode_ber4_length(pb, 35);
2017  avio_w8(pb, 0x83); // UMID
2018  avio_wb16(pb, 0x20);
2019  mxf_write_umid(s, 1);
2020 }
2021 
2023 {
2024  MXFContext *mxf = s->priv_data;
2025  AVIOContext *pb = s->pb;
2026  MXFStreamContext *sc = st->priv_data;
2027  int packet_size = (uint64_t)sc->video_bit_rate*mxf->time_base.num /
2028  (8*mxf->time_base.den); // frame size
2029  int pad;
2030 
2031  packet_size += 16 + 4;
2032  packet_size += klv_fill_size(packet_size);
2033 
2034  klv_encode_ber4_length(pb, pkt->size);
2035  avio_write(pb, pkt->data, pkt->size);
2036 
2037  // ensure CBR muxing by padding to correct video frame size
2038  pad = packet_size - pkt->size - 16 - 4;
2039  if (pad > 20) {
2040  avio_write(s->pb, klv_fill_key, 16);
2041  pad -= 16 + 4;
2042  klv_encode_ber4_length(s->pb, pad);
2043  ffio_fill(s->pb, 0, pad);
2044  av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
2045  } else {
2046  av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
2047  ffio_fill(s->pb, 0, pad);
2048  }
2049 }
2050 
2052 {
2053  MXFContext *mxf = s->priv_data;
2054  AVIOContext *pb = s->pb;
2055  int frame_size = pkt->size / st->codec->block_align;
2056  uint8_t *samples = pkt->data;
2057  uint8_t *end = pkt->data + pkt->size;
2058  int i;
2059 
2060  klv_encode_ber4_length(pb, 4 + frame_size*4*8);
2061 
2062  avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
2063  avio_wl16(pb, frame_size);
2064  avio_w8(pb, (1<<st->codec->channels)-1);
2065 
2066  while (samples < end) {
2067  for (i = 0; i < st->codec->channels; i++) {
2068  uint32_t sample;
2069  if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
2070  sample = AV_RL24(samples)<< 4;
2071  samples += 3;
2072  } else {
2073  sample = AV_RL16(samples)<<12;
2074  samples += 2;
2075  }
2076  avio_wl32(pb, sample | i);
2077  }
2078  for (; i < 8; i++)
2079  avio_wl32(pb, i);
2080  }
2081 }
2082 
2084 {
2085  MXFContext *mxf = s->priv_data;
2086  AVIOContext *pb = s->pb;
2087  AVStream *st = s->streams[0];
2088  MXFStreamContext *sc = st->priv_data;
2089  const uint8_t *key = NULL;
2090 
2091  int err;
2092 
2093  if (!mxf->header_written)
2094  key = body_partition_key;
2095 
2096  if ((err = mxf_write_partition(s, 1, 0, key, 0)) < 0)
2097  return err;
2098  mxf_write_klv_fill(s);
2101  return 0;
2102 }
2103 
2105 {
2106  MXFContext *mxf = s->priv_data;
2107  AVIOContext *pb = s->pb;
2108 
2109  int err;
2110 
2111  if (!mxf->header_written) {
2112  if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
2113  return err;
2114  mxf_write_klv_fill(s);
2115 
2116  if ((err = mxf_write_opatom_body_partition(s)) < 0)
2117  return err;
2118  mxf->header_written = 1;
2119  }
2120 
2121  if (!mxf->edit_unit_byte_count) {
2123  mxf->index_entries[mxf->edit_units_count].flags = ie->flags;
2125  }
2126  mxf->edit_units_count++;
2127  avio_write(pb, pkt->data, pkt->size);
2128  mxf->body_offset += pkt->size;
2129 
2130  avio_flush(pb);
2131 
2132  return 0;
2133 }
2134 
2136 {
2137  MXFContext *mxf = s->priv_data;
2138  AVIOContext *pb = s->pb;
2139  AVStream *st = s->streams[pkt->stream_index];
2140  MXFStreamContext *sc = st->priv_data;
2141  MXFIndexEntry ie = {0};
2142  int err;
2143 
2145  if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
2146  + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
2147  mxf->edit_units_count = 0;
2148  av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
2149  return err;
2150  }
2151  }
2152 
2153  if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
2154  if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
2155  av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
2156  return -1;
2157  }
2158  } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
2159  if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
2160  av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
2161  return -1;
2162  }
2163  } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
2164  if (!mxf_parse_dv_frame(s, st, pkt)) {
2165  av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
2166  return -1;
2167  }
2168  } else if (st->codec->codec_id == AV_CODEC_ID_H264) {
2169  if (!mxf_parse_h264_frame(s, st, pkt, &ie)) {
2170  av_log(s, AV_LOG_ERROR, "could not get h264 profile\n");
2171  return -1;
2172  }
2173  }
2174 
2175  if (s->oformat == &ff_mxf_opatom_muxer)
2176  return mxf_write_opatom_packet(s, pkt, &ie);
2177 
2178  if (!mxf->header_written) {
2179  if (mxf->edit_unit_byte_count) {
2180  if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
2181  return err;
2182  mxf_write_klv_fill(s);
2184  } else {
2185  if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
2186  return err;
2187  }
2188  mxf->header_written = 1;
2189  }
2190 
2191  if (st->index == 0) {
2192  if (!mxf->edit_unit_byte_count &&
2194  !(ie.flags & 0x33)) { // I frame, Gop start
2195  mxf_write_klv_fill(s);
2196  if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
2197  return err;
2198  mxf_write_klv_fill(s);
2200  }
2201 
2202  mxf_write_klv_fill(s);
2204 
2205  if (!mxf->edit_unit_byte_count) {
2207  mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
2209  mxf->body_offset += KAG_SIZE; // size of system element
2210  }
2211  mxf->edit_units_count++;
2212  } else if (!mxf->edit_unit_byte_count && st->index == 1) {
2214  mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
2215  }
2216 
2217  mxf_write_klv_fill(s);
2218  avio_write(pb, sc->track_essence_element_key, 16); // write key
2219  if (s->oformat == &ff_mxf_d10_muxer) {
2220  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2221  mxf_write_d10_video_packet(s, st, pkt);
2222  else
2223  mxf_write_d10_audio_packet(s, st, pkt);
2224  } else {
2225  klv_encode_ber4_length(pb, pkt->size); // write length
2226  avio_write(pb, pkt->data, pkt->size);
2227  mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2228  }
2229 
2230  avio_flush(pb);
2231 
2232  return 0;
2233 }
2234 
2236 {
2237  MXFContext *mxf = s->priv_data;
2238  AVIOContext *pb = s->pb;
2239  uint64_t pos = avio_tell(pb);
2240  int i;
2241 
2243  klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2244 
2245  if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer)
2246  avio_wb32(pb, 1); // BodySID of header partition
2247  else
2248  avio_wb32(pb, 0);
2249  avio_wb64(pb, 0); // offset of header partition
2250 
2251  for (i = 0; i < mxf->body_partitions_count; i++) {
2252  avio_wb32(pb, 1); // BodySID
2253  avio_wb64(pb, mxf->body_partition_offset[i]);
2254  }
2255 
2256  avio_wb32(pb, 0); // BodySID of footer partition
2258 
2259  avio_wb32(pb, avio_tell(pb) - pos + 4);
2260 }
2261 
2263 {
2264  MXFContext *mxf = s->priv_data;
2265  AVIOContext *pb = s->pb;
2266  int err;
2267 
2269 
2270  mxf_write_klv_fill(s);
2272  if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) { // no need to repeat index
2273  if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
2274  return err;
2275  } else {
2276  if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
2277  return err;
2278  mxf_write_klv_fill(s);
2280  }
2281 
2282  mxf_write_klv_fill(s);
2284 
2285  if (s->pb->seekable) {
2286  if (s->oformat == &ff_mxf_opatom_muxer){
2287  /* rewrite body partition to update lengths */
2288  avio_seek(pb, mxf->body_partition_offset[0], SEEK_SET);
2289  if ((err = mxf_write_opatom_body_partition(s)) < 0)
2290  return err;
2291  }
2292 
2293  avio_seek(pb, 0, SEEK_SET);
2294  if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) {
2295  if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
2296  return err;
2297  mxf_write_klv_fill(s);
2299  } else {
2300  if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
2301  return err;
2302  }
2303  }
2304 
2306 
2307  av_freep(&mxf->index_entries);
2310  av_freep(&mxf->timecode_track);
2311 
2312  mxf_free(s);
2313 
2314  return 0;
2315 }
2316 
2318 {
2319  int i, stream_count = 0;
2320 
2321  for (i = 0; i < s->nb_streams; i++)
2322  stream_count += !!s->streams[i]->last_in_packet_buffer;
2323 
2324  if (stream_count && (s->nb_streams == stream_count || flush)) {
2325  AVPacketList *pktl = s->internal->packet_buffer;
2326  if (s->nb_streams != stream_count) {
2327  AVPacketList *last = NULL;
2328  // find last packet in edit unit
2329  while (pktl) {
2330  if (!stream_count || pktl->pkt.stream_index == 0)
2331  break;
2332  last = pktl;
2333  pktl = pktl->next;
2334  stream_count--;
2335  }
2336  // purge packet queue
2337  while (pktl) {
2338  AVPacketList *next = pktl->next;
2339 
2340  if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2342  av_free_packet(&pktl->pkt);
2343  av_freep(&pktl);
2344  pktl = next;
2345  }
2346  if (last)
2347  last->next = NULL;
2348  else {
2349  s->internal->packet_buffer = NULL;
2351  goto out;
2352  }
2353  pktl = s->internal->packet_buffer;
2354  }
2355 
2356  *out = pktl->pkt;
2357  av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2358  s->internal->packet_buffer = pktl->next;
2359  if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2361  if(!s->internal->packet_buffer)
2363  av_freep(&pktl);
2364  return 1;
2365  } else {
2366  out:
2367  av_init_packet(out);
2368  return 0;
2369  }
2370 }
2371 
2373 {
2375  MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2376 
2377  return next->dts > pkt->dts ||
2378  (next->dts == pkt->dts && sc->order < sc2->order);
2379 }
2380 
2382 {
2383  return ff_audio_rechunk_interleave(s, out, pkt, flush,
2385 }
2386 
2387 static const AVOption d10_options[] = {
2388  { "d10_channelcount", "Force/set channelcount in generic sound essence descriptor",
2389  offsetof(MXFContext, channel_count), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 8, AV_OPT_FLAG_ENCODING_PARAM},
2390  { NULL },
2391 };
2392 
2394  .class_name = "MXF-D10 muxer",
2395  .item_name = av_default_item_name,
2396  .option = d10_options,
2397  .version = LIBAVUTIL_VERSION_INT,
2398 };
2399 
2401  .name = "mxf",
2402  .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2403  .mime_type = "application/mxf",
2404  .extensions = "mxf",
2405  .priv_data_size = sizeof(MXFContext),
2406  .audio_codec = AV_CODEC_ID_PCM_S16LE,
2407  .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2413 };
2414 
2415 AVOutputFormat ff_mxf_d10_muxer = {
2416  .name = "mxf_d10",
2417  .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2418  .mime_type = "application/mxf",
2419  .priv_data_size = sizeof(MXFContext),
2420  .audio_codec = AV_CODEC_ID_PCM_S16LE,
2421  .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2427  .priv_class = &mxf_d10_muxer_class,
2428 };
2429 
2430 AVOutputFormat ff_mxf_opatom_muxer = {
2431  .name = "mxf_opatom",
2432  .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) Operational Pattern Atom"),
2433  .mime_type = "application/mxf",
2434  .extensions = "mxf",
2435  .priv_data_size = sizeof(MXFContext),
2436  .audio_codec = AV_CODEC_ID_PCM_S16LE,
2437  .video_codec = AV_CODEC_ID_DNXHD,
2443 };