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Add a VorbisComment metadata conversion table and use it in the FLAC and
[FFMpeg-mirror/lagarith.git] / libavformat / mxfenc.c
blob9abcab013e7b744323c2325dd6ae27870d708b58
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 //#define DEBUG
34
35 #include <math.h>
36 #include <time.h>
37
38 #include "libavutil/random_seed.h"
39 #include "libavcodec/bytestream.h"
40 #include "audiointerleave.h"
41 #include "avformat.h"
42 #include "mxf.h"
43
44 static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 };
45 static const int PAL_samples_per_frame[] = { 1920, 0 };
46
47 AVOutputFormat mxf_d10_muxer;
48
49 #define EDIT_UNITS_PER_BODY 250
50 #define KAG_SIZE 512
51
52 typedef struct {
53 int local_tag;
54 UID uid;
55 } MXFLocalTagPair;
56
57 typedef struct {
58 uint8_t flags;
59 uint64_t offset;
60 unsigned slice_offset; ///< offset of audio slice
61 } MXFIndexEntry;
62
63 typedef struct {
64 AudioInterleaveContext aic;
65 UID track_essence_element_key;
66 int index; ///< index in mxf_essence_container_uls table
67 const UID *codec_ul;
68 int order; ///< interleaving order if dts are equal
69 int interlaced; ///< wether picture is interlaced
70 int temporal_reordering;
71 AVRational aspect_ratio; ///< display aspect ratio
72 } MXFStreamContext;
73
74 typedef struct {
75 UID container_ul;
76 UID element_ul;
77 UID codec_ul;
78 void (*write_desc)();
79 } MXFContainerEssenceEntry;
80
81 static const struct {
82 enum CodecID id;
83 int index;
84 } mxf_essence_mappings[] = {
85 { CODEC_ID_MPEG2VIDEO, 0 },
86 { CODEC_ID_PCM_S24LE, 1 },
87 { CODEC_ID_PCM_S16LE, 1 },
88 { 0 }
89 };
90
91 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
92 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
93 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
94 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
95 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
96
97 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
98 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
99 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
100 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
101 mxf_write_mpegvideo_desc },
102 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
103 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
104 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
105 mxf_write_aes3_desc },
106 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
107 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
108 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
109 mxf_write_wav_desc },
110 // D-10 625/50 PAL 50mb/s
111 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
112 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
113 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
114 mxf_write_cdci_desc },
115 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
116 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
117 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
118 mxf_write_generic_sound_desc },
119 // D-10 525/60 NTSC 50mb/s
120 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
121 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
122 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
123 mxf_write_cdci_desc },
124 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
125 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
126 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
127 mxf_write_generic_sound_desc },
128 // D-10 625/50 PAL 40mb/s
129 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
130 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
131 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
132 mxf_write_cdci_desc },
133 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
134 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
135 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
136 mxf_write_generic_sound_desc },
137 // D-10 525/60 NTSC 40mb/s
138 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
139 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
140 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
141 mxf_write_cdci_desc },
142 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
143 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
144 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
145 mxf_write_generic_sound_desc },
146 // D-10 625/50 PAL 30mb/s
147 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
148 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
149 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
150 mxf_write_cdci_desc },
151 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
152 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
153 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
154 mxf_write_generic_sound_desc },
155 // D-10 525/60 NTSC 30mb/s
156 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
157 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
158 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
159 mxf_write_cdci_desc },
160 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
161 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
162 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
163 mxf_write_generic_sound_desc },
164 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
165 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
166 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
167 NULL },
168 };
169
170 typedef struct MXFContext {
171 int64_t footer_partition_offset;
172 int essence_container_count;
173 AVRational time_base;
174 int header_written;
175 MXFIndexEntry *index_entries;
176 unsigned edit_units_count;
177 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
178 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
179 int last_indexed_edit_unit;
180 uint64_t *body_partition_offset;
181 unsigned body_partitions_count;
182 int last_key_index; ///< index of last key frame
183 uint64_t duration;
184 AVStream *timecode_track;
185 int timecode_base; ///< rounded time code base (25 or 30)
186 int timecode_start; ///< frame number computed from mpeg-2 gop header timecode
187 int timecode_drop_frame; ///< time code use drop frame method frop mpeg-2 essence gop header
188 int edit_unit_byte_count; ///< fixed edit unit byte count
189 uint64_t body_offset;
190 uint32_t instance_number;
191 uint8_t umid[16]; ///< unique material identifier
192 } MXFContext;
193
194 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
195 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
196
197 /**
198 * complete key for operation pattern, partitions, and primer pack
199 */
200 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
201 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
202 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
203 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
204 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
205 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
206 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
207 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
208 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
209
210 /**
211 * partial key for header metadata
212 */
213 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
214 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
215
216 /**
217 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
218 */
219 static const MXFLocalTagPair mxf_local_tag_batch[] = {
220 // preface set
221 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
222 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
223 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
224 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
225 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
226 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
227 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
228 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
229 // Identification
230 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
231 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
232 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
233 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
234 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
235 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
236 // Content Storage
237 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
238 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
239 // Essence Container Data
240 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
241 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
242 // Package
243 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
244 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
245 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
246 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
247 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
248 // Track
249 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
250 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
251 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
252 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
253 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
254 // Sequence
255 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
256 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
257 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
258 // Source Clip
259 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
260 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
261 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
262 // Timecode Component
263 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
264 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
265 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
266 // File Descriptor
267 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
268 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
269 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
270 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
271 // Generic Picture Essence Descriptor
272 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
273 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
274 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
275 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
276 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
277 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
278 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
279 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
280 // CDCI Picture Essence Descriptor
281 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
282 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
283 // Generic Sound Essence Descriptor
284 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
285 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
286 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
287 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
288 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
289 // Index Table Segment
290 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
291 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
292 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
293 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
294 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
295 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
296 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
297 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
298 // MPEG video Descriptor
299 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
300 // Wave Audio Essence Descriptor
301 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
302 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
303 };
304
305 static void mxf_write_uuid(ByteIOContext *pb, enum MXFMetadataSetType type, int value)
306 {
307 put_buffer(pb, uuid_base, 12);
308 put_be16(pb, type);
309 put_be16(pb, value);
310 }
311
312 static void mxf_write_umid(AVFormatContext *s, int type)
313 {
314 MXFContext *mxf = s->priv_data;
315 put_buffer(s->pb, umid_ul, 13);
316 put_be24(s->pb, mxf->instance_number);
317 put_buffer(s->pb, mxf->umid, 15);
318 put_byte(s->pb, type);
319 }
320
321 static void mxf_write_refs_count(ByteIOContext *pb, int ref_count)
322 {
323 put_be32(pb, ref_count);
324 put_be32(pb, 16);
325 }
326
327 static int klv_ber_length(uint64_t len)
328 {
329 if (len < 128)
330 return 1;
331 else
332 return (av_log2(len) >> 3) + 2;
333 }
334
335 static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len)
336 {
337 // Determine the best BER size
338 int size;
339 if (len < 128) {
340 //short form
341 put_byte(pb, len);
342 return 1;
343 }
344
345 size = (av_log2(len) >> 3) + 1;
346
347 // long form
348 put_byte(pb, 0x80 + size);
349 while(size) {
350 size--;
351 put_byte(pb, len >> 8 * size & 0xff);
352 }
353 return 0;
354 }
355
356 static void klv_encode_ber4_length(ByteIOContext *pb, int len)
357 {
358 put_byte(pb, 0x80 + 3);
359 put_be24(pb, len);
360 }
361
362 /*
363 * Get essence container ul index
364 */
365 static int mxf_get_essence_container_ul_index(enum CodecID id)
366 {
367 int i;
368 for (i = 0; mxf_essence_mappings[i].id; i++)
369 if (mxf_essence_mappings[i].id == id)
370 return mxf_essence_mappings[i].index;
371 return -1;
372 }
373
374 static void mxf_write_primer_pack(AVFormatContext *s)
375 {
376 ByteIOContext *pb = s->pb;
377 int local_tag_number, i = 0;
378
379 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
380
381 put_buffer(pb, primer_pack_key, 16);
382 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
383
384 put_be32(pb, local_tag_number); // local_tag num
385 put_be32(pb, 18); // item size, always 18 according to the specs
386
387 for (i = 0; i < local_tag_number; i++) {
388 put_be16(pb, mxf_local_tag_batch[i].local_tag);
389 put_buffer(pb, mxf_local_tag_batch[i].uid, 16);
390 }
391 }
392
393 static void mxf_write_local_tag(ByteIOContext *pb, int size, int tag)
394 {
395 put_be16(pb, tag);
396 put_be16(pb, size);
397 }
398
399 static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value)
400 {
401 put_buffer(pb, header_metadata_key, 13);
402 put_be24(pb, value);
403 }
404
405 static void mxf_free(AVFormatContext *s)
406 {
407 int i;
408
409 for (i = 0; i < s->nb_streams; i++) {
410 AVStream *st = s->streams[i];
411 av_freep(&st->priv_data);
412 }
413 }
414
415 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
416 {
417 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
418 while (uls->uid[0]) {
419 if (type == uls->id)
420 break;
421 uls++;
422 }
423 return uls;
424 }
425
426 static void mxf_write_essence_container_refs(AVFormatContext *s)
427 {
428 MXFContext *c = s->priv_data;
429 ByteIOContext *pb = s->pb;
430 int i;
431
432 mxf_write_refs_count(pb, c->essence_container_count);
433 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
434 for (i = 0; i < c->essence_container_count; i++) {
435 MXFStreamContext *sc = s->streams[i]->priv_data;
436 put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
437 }
438 }
439
440 static void mxf_write_preface(AVFormatContext *s)
441 {
442 MXFContext *mxf = s->priv_data;
443 ByteIOContext *pb = s->pb;
444
445 mxf_write_metadata_key(pb, 0x012f00);
446 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
447 klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count);
448
449 // write preface set uid
450 mxf_write_local_tag(pb, 16, 0x3C0A);
451 mxf_write_uuid(pb, Preface, 0);
452 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
453
454 // last modified date
455 mxf_write_local_tag(pb, 8, 0x3B02);
456 put_be64(pb, mxf->timestamp);
457
458 // write version
459 mxf_write_local_tag(pb, 2, 0x3B05);
460 put_be16(pb, 258); // v1.2
461
462 // write identification_refs
463 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
464 mxf_write_refs_count(pb, 1);
465 mxf_write_uuid(pb, Identification, 0);
466
467 // write content_storage_refs
468 mxf_write_local_tag(pb, 16, 0x3B03);
469 mxf_write_uuid(pb, ContentStorage, 0);
470
471 // operational pattern
472 mxf_write_local_tag(pb, 16, 0x3B09);
473 put_buffer(pb, op1a_ul, 16);
474
475 // write essence_container_refs
476 mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A);
477 mxf_write_essence_container_refs(s);
478
479 // write dm_scheme_refs
480 mxf_write_local_tag(pb, 8, 0x3B0B);
481 put_be64(pb, 0);
482 }
483
484 /*
485 * Write a local tag containing an ascii string as utf-16
486 */
487 static void mxf_write_local_tag_utf16(ByteIOContext *pb, int tag, const char *value)
488 {
489 int i, size = strlen(value);
490 mxf_write_local_tag(pb, size*2, tag);
491 for (i = 0; i < size; i++)
492 put_be16(pb, value[i]);
493 }
494
495 static void mxf_write_identification(AVFormatContext *s)
496 {
497 MXFContext *mxf = s->priv_data;
498 ByteIOContext *pb = s->pb;
499 const char *company = "FFmpeg";
500 const char *product = "OP1a Muxer";
501 const char *version;
502 int length;
503
504 mxf_write_metadata_key(pb, 0x013000);
505 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
506
507 version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
508 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
509 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
510 klv_encode_ber_length(pb, length);
511
512 // write uid
513 mxf_write_local_tag(pb, 16, 0x3C0A);
514 mxf_write_uuid(pb, Identification, 0);
515 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
516
517 // write generation uid
518 mxf_write_local_tag(pb, 16, 0x3C09);
519 mxf_write_uuid(pb, Identification, 1);
520
521 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
522 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
523 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
524
525 // write product uid
526 mxf_write_local_tag(pb, 16, 0x3C05);
527 mxf_write_uuid(pb, Identification, 2);
528
529 // modification date
530 mxf_write_local_tag(pb, 8, 0x3C06);
531 put_be64(pb, mxf->timestamp);
532 }
533
534 static void mxf_write_content_storage(AVFormatContext *s)
535 {
536 ByteIOContext *pb = s->pb;
537
538 mxf_write_metadata_key(pb, 0x011800);
539 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
540 klv_encode_ber_length(pb, 92);
541
542 // write uid
543 mxf_write_local_tag(pb, 16, 0x3C0A);
544 mxf_write_uuid(pb, ContentStorage, 0);
545 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
546
547 // write package reference
548 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
549 mxf_write_refs_count(pb, 2);
550 mxf_write_uuid(pb, MaterialPackage, 0);
551 mxf_write_uuid(pb, SourcePackage, 0);
552
553 // write essence container data
554 mxf_write_local_tag(pb, 8 + 16, 0x1902);
555 mxf_write_refs_count(pb, 1);
556 mxf_write_uuid(pb, EssenceContainerData, 0);
557 }
558
559 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
560 {
561 MXFContext *mxf = s->priv_data;
562 ByteIOContext *pb = s->pb;
563 MXFStreamContext *sc = st->priv_data;
564
565 mxf_write_metadata_key(pb, 0x013b00);
566 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
567 klv_encode_ber_length(pb, 80);
568
569 // write track uid
570 mxf_write_local_tag(pb, 16, 0x3C0A);
571 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
572 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
573
574 // write track id
575 mxf_write_local_tag(pb, 4, 0x4801);
576 put_be32(pb, st->index+2);
577
578 // write track number
579 mxf_write_local_tag(pb, 4, 0x4804);
580 if (type == MaterialPackage)
581 put_be32(pb, 0); // track number of material package is 0
582 else
583 put_buffer(pb, sc->track_essence_element_key + 12, 4);
584
585 mxf_write_local_tag(pb, 8, 0x4B01);
586 put_be32(pb, mxf->time_base.den);
587 put_be32(pb, mxf->time_base.num);
588
589 // write origin
590 mxf_write_local_tag(pb, 8, 0x4B02);
591 put_be64(pb, 0);
592
593 // write sequence refs
594 mxf_write_local_tag(pb, 16, 0x4803);
595 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
596 }
597
598 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 };
599
600 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
601 {
602 MXFContext *mxf = s->priv_data;
603 ByteIOContext *pb = s->pb;
604
605 // find data define uls
606 mxf_write_local_tag(pb, 16, 0x0201);
607 if (st == mxf->timecode_track)
608 put_buffer(pb, smpte_12m_timecode_track_data_ul, 16);
609 else {
610 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
611 put_buffer(pb, data_def_ul->uid, 16);
612 }
613
614 // write duration
615 mxf_write_local_tag(pb, 8, 0x0202);
616 put_be64(pb, mxf->duration);
617 }
618
619 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
620 {
621 MXFContext *mxf = s->priv_data;
622 ByteIOContext *pb = s->pb;
623 enum MXFMetadataSetType component;
624
625 mxf_write_metadata_key(pb, 0x010f00);
626 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
627 klv_encode_ber_length(pb, 80);
628
629 mxf_write_local_tag(pb, 16, 0x3C0A);
630 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
631
632 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
633 mxf_write_common_fields(s, st);
634
635 // write structural component
636 mxf_write_local_tag(pb, 16 + 8, 0x1001);
637 mxf_write_refs_count(pb, 1);
638 if (st == mxf->timecode_track)
639 component = TimecodeComponent;
640 else
641 component = SourceClip;
642 if (type == SourcePackage)
643 component += TypeBottom;
644 mxf_write_uuid(pb, component, st->index);
645 }
646
647 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
648 {
649 MXFContext *mxf = s->priv_data;
650 ByteIOContext *pb = s->pb;
651
652 mxf_write_metadata_key(pb, 0x011400);
653 klv_encode_ber_length(pb, 75);
654
655 // UID
656 mxf_write_local_tag(pb, 16, 0x3C0A);
657 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
658 TimecodeComponent + TypeBottom, st->index);
659
660 mxf_write_common_fields(s, st);
661
662 // Start Time Code
663 mxf_write_local_tag(pb, 8, 0x1501);
664 put_be64(pb, mxf->timecode_start);
665
666 // Rounded Time Code Base
667 mxf_write_local_tag(pb, 2, 0x1502);
668 put_be16(pb, mxf->timecode_base);
669
670 // Drop Frame
671 mxf_write_local_tag(pb, 1, 0x1503);
672 put_byte(pb, mxf->timecode_drop_frame);
673 }
674
675 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
676 {
677 ByteIOContext *pb = s->pb;
678 int i;
679
680 mxf_write_metadata_key(pb, 0x011100);
681 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
682 klv_encode_ber_length(pb, 108);
683
684 // write uid
685 mxf_write_local_tag(pb, 16, 0x3C0A);
686 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
687
688 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
689 mxf_write_common_fields(s, st);
690
691 // write start_position
692 mxf_write_local_tag(pb, 8, 0x1201);
693 put_be64(pb, 0);
694
695 // write source package uid, end of the reference
696 mxf_write_local_tag(pb, 32, 0x1101);
697 if (type == SourcePackage) {
698 for (i = 0; i < 4; i++)
699 put_be64(pb, 0);
700 } else
701 mxf_write_umid(s, 1);
702
703 // write source track id
704 mxf_write_local_tag(pb, 4, 0x1102);
705 if (type == SourcePackage)
706 put_be32(pb, 0);
707 else
708 put_be32(pb, st->index+2);
709 }
710
711 static void mxf_write_multi_descriptor(AVFormatContext *s)
712 {
713 MXFContext *mxf = s->priv_data;
714 ByteIOContext *pb = s->pb;
715 const uint8_t *ul;
716 int i;
717
718 mxf_write_metadata_key(pb, 0x014400);
719 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
720 klv_encode_ber_length(pb, 64 + 16 * s->nb_streams);
721
722 mxf_write_local_tag(pb, 16, 0x3C0A);
723 mxf_write_uuid(pb, MultipleDescriptor, 0);
724 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
725
726 // write sample rate
727 mxf_write_local_tag(pb, 8, 0x3001);
728 put_be32(pb, mxf->time_base.den);
729 put_be32(pb, mxf->time_base.num);
730
731 // write essence container ul
732 mxf_write_local_tag(pb, 16, 0x3004);
733 if (mxf->essence_container_count > 1)
734 ul = multiple_desc_ul;
735 else {
736 MXFStreamContext *sc = s->streams[0]->priv_data;
737 ul = mxf_essence_container_uls[sc->index].container_ul;
738 }
739 put_buffer(pb, ul, 16);
740
741 // write sub descriptor refs
742 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
743 mxf_write_refs_count(pb, s->nb_streams);
744 for (i = 0; i < s->nb_streams; i++)
745 mxf_write_uuid(pb, SubDescriptor, i);
746 }
747
748 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
749 {
750 MXFContext *mxf = s->priv_data;
751 MXFStreamContext *sc = st->priv_data;
752 ByteIOContext *pb = s->pb;
753
754 put_buffer(pb, key, 16);
755 klv_encode_ber_length(pb, size+20+8+12+20);
756
757 mxf_write_local_tag(pb, 16, 0x3C0A);
758 mxf_write_uuid(pb, SubDescriptor, st->index);
759
760 mxf_write_local_tag(pb, 4, 0x3006);
761 put_be32(pb, st->index+2);
762
763 mxf_write_local_tag(pb, 8, 0x3001);
764 put_be32(pb, mxf->time_base.den);
765 put_be32(pb, mxf->time_base.num);
766
767 mxf_write_local_tag(pb, 16, 0x3004);
768 put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
769 }
770
771 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
772 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
773 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
774 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
775 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
776
777 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
778 {
779 MXFStreamContext *sc = st->priv_data;
780 ByteIOContext *pb = s->pb;
781 int stored_height = (st->codec->height+15)/16*16;
782 int display_height;
783 int f1, f2;
784
785 mxf_write_generic_desc(s, st, key, size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20);
786
787 mxf_write_local_tag(pb, 4, 0x3203);
788 put_be32(pb, st->codec->width);
789
790 mxf_write_local_tag(pb, 4, 0x3202);
791 put_be32(pb, stored_height>>sc->interlaced);
792
793 mxf_write_local_tag(pb, 4, 0x3209);
794 put_be32(pb, st->codec->width);
795
796 if (st->codec->height == 608) // PAL + VBI
797 display_height = 576;
798 else if (st->codec->height == 512) // NTSC + VBI
799 display_height = 486;
800 else
801 display_height = st->codec->height;
802
803 mxf_write_local_tag(pb, 4, 0x3208);
804 put_be32(pb, display_height>>sc->interlaced);
805
806 // component depth
807 mxf_write_local_tag(pb, 4, 0x3301);
808 put_be32(pb, 8);
809
810 // horizontal subsampling
811 mxf_write_local_tag(pb, 4, 0x3302);
812 put_be32(pb, 2);
813
814 // frame layout
815 mxf_write_local_tag(pb, 1, 0x320C);
816 put_byte(pb, sc->interlaced);
817
818 // video line map
819 switch (st->codec->height) {
820 case 576: f1 = 23; f2 = 336; break;
821 case 608: f1 = 7; f2 = 320; break;
822 case 480: f1 = 20; f2 = 283; break;
823 case 512: f1 = 7; f2 = 270; break;
824 case 720: f1 = 26; f2 = 0; break; // progressive
825 case 1080: f1 = 21; f2 = 584; break;
826 default: f1 = 0; f2 = 0; break;
827 }
828
829 if (!sc->interlaced) {
830 f2 = 0;
831 f1 *= 2;
832 }
833
834 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
835 put_be32(pb, sc->interlaced ? 2 : 1);
836 put_be32(pb, 4);
837 put_be32(pb, f1);
838 if (sc->interlaced)
839 put_be32(pb, f2);
840
841 mxf_write_local_tag(pb, 8, 0x320E);
842 put_be32(pb, sc->aspect_ratio.num);
843 put_be32(pb, sc->aspect_ratio.den);
844
845 mxf_write_local_tag(pb, 16, 0x3201);
846 put_buffer(pb, *sc->codec_ul, 16);
847 }
848
849 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
850 {
851 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
852 }
853
854 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
855 {
856 ByteIOContext *pb = s->pb;
857
858 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8);
859
860 // bit rate
861 mxf_write_local_tag(pb, 4, 0x8000);
862 put_be32(pb, st->codec->bit_rate);
863 }
864
865 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
866 {
867 ByteIOContext *pb = s->pb;
868
869 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
870
871 // audio locked
872 mxf_write_local_tag(pb, 1, 0x3D02);
873 put_byte(pb, 1);
874
875 // write audio sampling rate
876 mxf_write_local_tag(pb, 8, 0x3D03);
877 put_be32(pb, st->codec->sample_rate);
878 put_be32(pb, 1);
879
880 mxf_write_local_tag(pb, 4, 0x3D07);
881 put_be32(pb, st->codec->channels);
882
883 mxf_write_local_tag(pb, 4, 0x3D01);
884 put_be32(pb, av_get_bits_per_sample(st->codec->codec_id));
885 }
886
887 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
888 {
889 ByteIOContext *pb = s->pb;
890
891 mxf_write_generic_sound_common(s, st, key, size+6+8);
892
893 mxf_write_local_tag(pb, 2, 0x3D0A);
894 put_be16(pb, st->codec->block_align);
895
896 // avg bytes per sec
897 mxf_write_local_tag(pb, 4, 0x3D09);
898 put_be32(pb, st->codec->block_align*st->codec->sample_rate);
899 }
900
901 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
902 {
903 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
904 }
905
906 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
907 {
908 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
909 }
910
911 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
912 {
913 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
914 }
915
916 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
917 {
918 MXFContext *mxf = s->priv_data;
919 ByteIOContext *pb = s->pb;
920 int i, track_count = s->nb_streams+1;
921
922 if (type == MaterialPackage) {
923 mxf_write_metadata_key(pb, 0x013600);
924 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
925 klv_encode_ber_length(pb, 92 + 16*track_count);
926 } else {
927 mxf_write_metadata_key(pb, 0x013700);
928 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
929 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
930 }
931
932 // write uid
933 mxf_write_local_tag(pb, 16, 0x3C0A);
934 mxf_write_uuid(pb, type, 0);
935 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
936 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
937
938 // write package umid
939 mxf_write_local_tag(pb, 32, 0x4401);
940 mxf_write_umid(s, type == SourcePackage);
941 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
942
943 // package creation date
944 mxf_write_local_tag(pb, 8, 0x4405);
945 put_be64(pb, mxf->timestamp);
946
947 // package modified date
948 mxf_write_local_tag(pb, 8, 0x4404);
949 put_be64(pb, mxf->timestamp);
950
951 // write track refs
952 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
953 mxf_write_refs_count(pb, track_count);
954 mxf_write_uuid(pb, type == MaterialPackage ? Track :
955 Track + TypeBottom, -1); // timecode track
956 for (i = 0; i < s->nb_streams; i++)
957 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
958
959 // write multiple descriptor reference
960 if (type == SourcePackage) {
961 mxf_write_local_tag(pb, 16, 0x4701);
962 if (s->nb_streams > 1) {
963 mxf_write_uuid(pb, MultipleDescriptor, 0);
964 mxf_write_multi_descriptor(s);
965 } else
966 mxf_write_uuid(pb, SubDescriptor, 0);
967 }
968
969 // write timecode track
970 mxf_write_track(s, mxf->timecode_track, type);
971 mxf_write_sequence(s, mxf->timecode_track, type);
972 mxf_write_timecode_component(s, mxf->timecode_track, type);
973
974 for (i = 0; i < s->nb_streams; i++) {
975 AVStream *st = s->streams[i];
976 mxf_write_track(s, st, type);
977 mxf_write_sequence(s, st, type);
978 mxf_write_structural_component(s, st, type);
979
980 if (type == SourcePackage) {
981 MXFStreamContext *sc = st->priv_data;
982 mxf_essence_container_uls[sc->index].write_desc(s, st);
983 }
984 }
985 }
986
987 static int mxf_write_essence_container_data(AVFormatContext *s)
988 {
989 ByteIOContext *pb = s->pb;
990
991 mxf_write_metadata_key(pb, 0x012300);
992 klv_encode_ber_length(pb, 72);
993
994 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
995 mxf_write_uuid(pb, EssenceContainerData, 0);
996
997 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
998 mxf_write_umid(s, 1);
999
1000 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1001 put_be32(pb, 1);
1002
1003 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1004 put_be32(pb, 2);
1005
1006 return 0;
1007 }
1008
1009 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1010 {
1011 mxf_write_preface(s);
1012 mxf_write_identification(s);
1013 mxf_write_content_storage(s);
1014 mxf_write_package(s, MaterialPackage);
1015 mxf_write_package(s, SourcePackage);
1016 mxf_write_essence_container_data(s);
1017 return 0;
1018 }
1019
1020 static unsigned klv_fill_size(uint64_t size)
1021 {
1022 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1023 if (pad < 20) // smallest fill item possible
1024 return pad + KAG_SIZE;
1025 else
1026 return pad & (KAG_SIZE-1);
1027 }
1028
1029 static void mxf_write_index_table_segment(AVFormatContext *s)
1030 {
1031 MXFContext *mxf = s->priv_data;
1032 ByteIOContext *pb = s->pb;
1033 int i, j;
1034 int temporal_reordering = 0;
1035 int key_index = mxf->last_key_index;
1036
1037 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1038
1039 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1040 return;
1041
1042 put_buffer(pb, index_table_segment_key, 16);
1043
1044 if (mxf->edit_unit_byte_count) {
1045 klv_encode_ber_length(pb, 80);
1046 } else {
1047 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 +
1048 12+mxf->edit_units_count*(11+mxf->slice_count*4));
1049 }
1050
1051 // instance id
1052 mxf_write_local_tag(pb, 16, 0x3C0A);
1053 mxf_write_uuid(pb, IndexTableSegment, 0);
1054
1055 // index edit rate
1056 mxf_write_local_tag(pb, 8, 0x3F0B);
1057 put_be32(pb, mxf->time_base.den);
1058 put_be32(pb, mxf->time_base.num);
1059
1060 // index start position
1061 mxf_write_local_tag(pb, 8, 0x3F0C);
1062 put_be64(pb, mxf->last_indexed_edit_unit);
1063
1064 // index duration
1065 mxf_write_local_tag(pb, 8, 0x3F0D);
1066 put_be64(pb, mxf->edit_units_count);
1067
1068 // edit unit byte count
1069 mxf_write_local_tag(pb, 4, 0x3F05);
1070 put_be32(pb, mxf->edit_unit_byte_count);
1071
1072 // index sid
1073 mxf_write_local_tag(pb, 4, 0x3F06);
1074 put_be32(pb, 2);
1075
1076 // body sid
1077 mxf_write_local_tag(pb, 4, 0x3F07);
1078 put_be32(pb, 1);
1079
1080 if (!mxf->edit_unit_byte_count) {
1081 // real slice count - 1
1082 mxf_write_local_tag(pb, 1, 0x3F08);
1083 put_byte(pb, mxf->slice_count);
1084
1085 // delta entry array
1086 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1087 put_be32(pb, s->nb_streams+1); // num of entries
1088 put_be32(pb, 6); // size of one entry
1089 // write system item delta entry
1090 put_byte(pb, 0);
1091 put_byte(pb, 0); // slice entry
1092 put_be32(pb, 0); // element delta
1093 for (i = 0; i < s->nb_streams; i++) {
1094 AVStream *st = s->streams[i];
1095 MXFStreamContext *sc = st->priv_data;
1096 put_byte(pb, sc->temporal_reordering);
1097 if (sc->temporal_reordering)
1098 temporal_reordering = 1;
1099 if (i == 0) { // video track
1100 put_byte(pb, 0); // slice number
1101 put_be32(pb, KAG_SIZE); // system item size including klv fill
1102 } else { // audio track
1103 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1104 audio_frame_size += klv_fill_size(audio_frame_size);
1105 put_byte(pb, 1);
1106 put_be32(pb, (i-1)*audio_frame_size); // element delta
1107 }
1108 }
1109
1110 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1111 put_be32(pb, mxf->edit_units_count); // num of entries
1112 put_be32(pb, 11+mxf->slice_count*4); // size of one entry
1113 for (i = 0; i < mxf->edit_units_count; i++) {
1114 if (temporal_reordering) {
1115 int temporal_offset = 0;
1116 for (j = i+1; j < mxf->edit_units_count; j++) {
1117 temporal_offset++;
1118 if (mxf->index_entries[j].flags & 0x10) { // backward prediction
1119 // next is not b, so is reordered
1120 if (!(mxf->index_entries[i+1].flags & 0x10)) {
1121 if ((mxf->index_entries[i].flags & 0x11) == 0) // i frame
1122 temporal_offset = 0;
1123 else
1124 temporal_offset = -temporal_offset;
1125 }
1126 break;
1127 }
1128 }
1129 put_byte(pb, temporal_offset);
1130 } else
1131 put_byte(pb, 0);
1132 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1133 mxf->last_key_index = key_index;
1134 key_index = i;
1135 }
1136 if (mxf->index_entries[i].flags & 0x10 && // backward prediction
1137 !(mxf->index_entries[key_index].flags & 0x80)) { // open gop
1138 put_byte(pb, mxf->last_key_index - i);
1139 } else {
1140 put_byte(pb, key_index - i); // key frame offset
1141 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1142 mxf->last_key_index = key_index;
1143 }
1144 put_byte(pb, mxf->index_entries[i].flags);
1145 // stream offset
1146 put_be64(pb, mxf->index_entries[i].offset);
1147 if (s->nb_streams > 1)
1148 put_be32(pb, mxf->index_entries[i].slice_offset);
1149 }
1150
1151 mxf->last_key_index = key_index - mxf->edit_units_count;
1152 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1153 mxf->edit_units_count = 0;
1154 }
1155 }
1156
1157 static void mxf_write_klv_fill(AVFormatContext *s)
1158 {
1159 unsigned pad = klv_fill_size(url_ftell(s->pb));
1160 if (pad) {
1161 put_buffer(s->pb, klv_fill_key, 16);
1162 pad -= 16 + 4;
1163 klv_encode_ber4_length(s->pb, pad);
1164 for (; pad; pad--)
1165 put_byte(s->pb, 0);
1166 assert(!(url_ftell(s->pb) & (KAG_SIZE-1)));
1167 }
1168 }
1169
1170 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1171 int indexsid,
1172 const uint8_t *key, int write_metadata)
1173 {
1174 MXFContext *mxf = s->priv_data;
1175 ByteIOContext *pb = s->pb;
1176 int64_t header_byte_count_offset;
1177 unsigned index_byte_count = 0;
1178 uint64_t partition_offset = url_ftell(pb);
1179
1180 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1181 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1182 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1183 else if (mxf->edit_unit_byte_count && indexsid)
1184 index_byte_count = 80;
1185
1186 if (index_byte_count) {
1187 // add encoded ber length
1188 index_byte_count += 16 + klv_ber_length(index_byte_count);
1189 index_byte_count += klv_fill_size(index_byte_count);
1190 }
1191
1192 if (!memcmp(key, body_partition_key, 16)) {
1193 mxf->body_partition_offset =
1194 av_realloc(mxf->body_partition_offset,
1195 (mxf->body_partitions_count+1)*
1196 sizeof(*mxf->body_partition_offset));
1197 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1198 }
1199
1200 // write klv
1201 put_buffer(pb, key, 16);
1202 klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count);
1203
1204 // write partition value
1205 put_be16(pb, 1); // majorVersion
1206 put_be16(pb, 2); // minorVersion
1207 put_be32(pb, KAG_SIZE); // KAGSize
1208
1209 put_be64(pb, partition_offset); // ThisPartition
1210
1211 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1212 put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1213 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1214 put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1215 else
1216 put_be64(pb, 0);
1217
1218 put_be64(pb, mxf->footer_partition_offset); // footerPartition
1219
1220 // set offset
1221 header_byte_count_offset = url_ftell(pb);
1222 put_be64(pb, 0); // headerByteCount, update later
1223
1224 // indexTable
1225 put_be64(pb, index_byte_count); // indexByteCount
1226 put_be32(pb, index_byte_count ? indexsid : 0); // indexSID
1227
1228 // BodyOffset
1229 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1230 put_be64(pb, mxf->body_offset);
1231 } else
1232 put_be64(pb, 0);
1233
1234 put_be32(pb, bodysid); // bodySID
1235
1236 // operational pattern
1237 put_buffer(pb, op1a_ul, 16);
1238
1239 // essence container
1240 mxf_write_essence_container_refs(s);
1241
1242 if (write_metadata) {
1243 // mark the start of the headermetadata and calculate metadata size
1244 int64_t pos, start;
1245 unsigned header_byte_count;
1246
1247 mxf_write_klv_fill(s);
1248 start = url_ftell(s->pb);
1249 mxf_write_primer_pack(s);
1250 mxf_write_header_metadata_sets(s);
1251 pos = url_ftell(s->pb);
1252 header_byte_count = pos - start + klv_fill_size(pos);
1253
1254 // update header_byte_count
1255 url_fseek(pb, header_byte_count_offset, SEEK_SET);
1256 put_be64(pb, header_byte_count);
1257 url_fseek(pb, pos, SEEK_SET);
1258 }
1259
1260 put_flush_packet(pb);
1261 }
1262
1263 static const UID mxf_mpeg2_codec_uls[] = {
1264 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1265 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1266 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1267 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1268 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1269 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1270 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1271 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1272 };
1273
1274 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1275 {
1276 if (avctx->profile == 4) { // Main
1277 if (avctx->level == 8) // Main
1278 return avctx->gop_size ?
1279 &mxf_mpeg2_codec_uls[1] :
1280 &mxf_mpeg2_codec_uls[0];
1281 else if (avctx->level == 4) // High
1282 return avctx->gop_size ?
1283 &mxf_mpeg2_codec_uls[5] :
1284 &mxf_mpeg2_codec_uls[4];
1285 } else if (avctx->profile == 0) { // 422
1286 if (avctx->level == 5) // Main
1287 return avctx->gop_size ?
1288 &mxf_mpeg2_codec_uls[3] :
1289 &mxf_mpeg2_codec_uls[2];
1290 else if (avctx->level == 2) // High
1291 return avctx->gop_size ?
1292 &mxf_mpeg2_codec_uls[7] :
1293 &mxf_mpeg2_codec_uls[6];
1294 }
1295 return NULL;
1296 }
1297
1298 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt, int *flags)
1299 {
1300 MXFStreamContext *sc = st->priv_data;
1301 MXFContext *mxf = s->priv_data;
1302 uint32_t c = -1;
1303 int i;
1304
1305 *flags = 0;
1306
1307 for(i = 0; i < pkt->size - 4; i++) {
1308 c = (c<<8) + pkt->data[i];
1309 if (c == 0x1B5) {
1310 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1311 st->codec->profile = pkt->data[i+1] & 0x07;
1312 st->codec->level = pkt->data[i+2] >> 4;
1313 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1314 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1315 break;
1316 }
1317 } else if (c == 0x1b8) { // gop
1318 if (pkt->data[i+4]>>6 & 0x01) // closed
1319 *flags |= 0x80; // random access
1320 if (!mxf->header_written) {
1321 unsigned hours = (pkt->data[i+1]>>2) & 0x1f;
1322 unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4);
1323 unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5);
1324 unsigned frames = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7);
1325 mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80);
1326 mxf->timecode_start = (hours*3600 + minutes*60 + seconds) *
1327 mxf->timecode_base + frames;
1328 if (mxf->timecode_drop_frame) {
1329 unsigned tminutes = 60 * hours + minutes;
1330 mxf->timecode_start -= 2 * (tminutes - tminutes / 10);
1331 }
1332 av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start,
1333 hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames);
1334 }
1335 } else if (c == 0x1b3) { // seq
1336 *flags |= 0x40;
1337 switch ((pkt->data[i+4]>>4) & 0xf) {
1338 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1339 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1340 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1341 default:
1342 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1343 st->codec->width, st->codec->height, 1024*1024);
1344 }
1345 } else if (c == 0x100) { // pic
1346 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1347 if (pict_type == 2) { // P frame
1348 *flags |= 0x22;
1349 st->codec->gop_size = 1;
1350 } else if (pict_type == 3) { // B frame
1351 *flags |= 0x33;
1352 sc->temporal_reordering = -1;
1353 } else if (!pict_type) {
1354 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1355 return 0;
1356 }
1357 }
1358 }
1359 if (s->oformat != &mxf_d10_muxer)
1360 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1361 return !!sc->codec_ul;
1362 }
1363
1364 static uint64_t mxf_parse_timestamp(time_t timestamp)
1365 {
1366 struct tm *time = gmtime(&timestamp);
1367 return (uint64_t)(time->tm_year+1900) << 48 |
1368 (uint64_t)(time->tm_mon+1) << 40 |
1369 (uint64_t) time->tm_mday << 32 |
1370 time->tm_hour << 24 |
1371 time->tm_min << 16 |
1372 time->tm_sec << 8;
1373 }
1374
1375 static void mxf_gen_umid(AVFormatContext *s)
1376 {
1377 MXFContext *mxf = s->priv_data;
1378 uint32_t seed = ff_random_get_seed();
1379 uint64_t umid = seed + 0x5294713400000000LL;
1380
1381 AV_WB64(mxf->umid , umid);
1382 AV_WB64(mxf->umid+8, umid>>8);
1383
1384 mxf->instance_number = seed;
1385 }
1386
1387 static int mxf_write_header(AVFormatContext *s)
1388 {
1389 MXFContext *mxf = s->priv_data;
1390 int i;
1391 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1392 const int *samples_per_frame = NULL;
1393
1394 if (!s->nb_streams)
1395 return -1;
1396
1397 for (i = 0; i < s->nb_streams; i++) {
1398 AVStream *st = s->streams[i];
1399 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1400 if (!sc)
1401 return AVERROR(ENOMEM);
1402 st->priv_data = sc;
1403
1404 if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
1405 if (i != 0) {
1406 av_log(s, AV_LOG_ERROR, "video stream must be first track\n");
1407 return -1;
1408 }
1409 if (fabs(av_q2d(st->codec->time_base) - 1/25.0) < 0.0001) {
1410 samples_per_frame = PAL_samples_per_frame;
1411 mxf->time_base = (AVRational){ 1, 25 };
1412 mxf->timecode_base = 25;
1413 } else if (fabs(av_q2d(st->codec->time_base) - 1001/30000.0) < 0.0001) {
1414 samples_per_frame = NTSC_samples_per_frame;
1415 mxf->time_base = (AVRational){ 1001, 30000 };
1416 mxf->timecode_base = 30;
1417 } else {
1418 av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n");
1419 return -1;
1420 }
1421 av_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1422 if (s->oformat == &mxf_d10_muxer) {
1423 if (st->codec->bit_rate == 50000000)
1424 if (mxf->time_base.den == 25) sc->index = 3;
1425 else sc->index = 5;
1426 else if (st->codec->bit_rate == 40000000)
1427 if (mxf->time_base.den == 25) sc->index = 7;
1428 else sc->index = 9;
1429 else if (st->codec->bit_rate == 30000000)
1430 if (mxf->time_base.den == 25) sc->index = 11;
1431 else sc->index = 13;
1432 else {
1433 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1434 return -1;
1435 }
1436
1437 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1438 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1439 mxf->time_base.num / (8*mxf->time_base.den);
1440 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1441 mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4;
1442 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1443 }
1444 } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
1445 if (st->codec->sample_rate != 48000) {
1446 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1447 return -1;
1448 }
1449 av_set_pts_info(st, 64, 1, st->codec->sample_rate);
1450 if (s->oformat == &mxf_d10_muxer) {
1451 if (st->index != 1) {
1452 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1453 return -1;
1454 }
1455 if (st->codec->codec_id != CODEC_ID_PCM_S16LE &&
1456 st->codec->codec_id != CODEC_ID_PCM_S24LE) {
1457 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1458 }
1459 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1460 } else
1461 mxf->slice_count = 1;
1462 }
1463
1464 if (!sc->index) {
1465 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1466 if (sc->index == -1) {
1467 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1468 "codec not currently supported in container\n", i);
1469 return -1;
1470 }
1471 }
1472
1473 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1474
1475 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1476 sc->track_essence_element_key[15] = present[sc->index];
1477 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1478
1479 if (!present[sc->index])
1480 mxf->essence_container_count++;
1481 present[sc->index]++;
1482 }
1483
1484 if (s->oformat == &mxf_d10_muxer) {
1485 mxf->essence_container_count = 1;
1486 }
1487
1488 if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1489 mxf_gen_umid(s);
1490
1491 for (i = 0; i < s->nb_streams; i++) {
1492 MXFStreamContext *sc = s->streams[i]->priv_data;
1493 // update element count
1494 sc->track_essence_element_key[13] = present[sc->index];
1495 sc->order = AV_RB32(sc->track_essence_element_key+12);
1496 }
1497
1498 if (s->timestamp)
1499 mxf->timestamp = mxf_parse_timestamp(s->timestamp);
1500 mxf->duration = -1;
1501
1502 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1503 if (!mxf->timecode_track)
1504 return AVERROR(ENOMEM);
1505 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1506 if (!mxf->timecode_track->priv_data)
1507 return AVERROR(ENOMEM);
1508 mxf->timecode_track->index = -1;
1509
1510 if (!samples_per_frame)
1511 samples_per_frame = PAL_samples_per_frame;
1512
1513 if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0)
1514 return -1;
1515
1516 return 0;
1517 }
1518
1519 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1520 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 };
1521
1522 static uint32_t ff_framenum_to_12m_time_code(unsigned frame, int drop, int fps)
1523 {
1524 return (0 << 31) | // color frame flag
1525 (0 << 30) | // drop frame flag
1526 ( ((frame % fps) / 10) << 28) | // tens of frames
1527 ( ((frame % fps) % 10) << 24) | // units of frames
1528 (0 << 23) | // field phase (NTSC), b0 (PAL)
1529 ((((frame / fps) % 60) / 10) << 20) | // tens of seconds
1530 ((((frame / fps) % 60) % 10) << 16) | // units of seconds
1531 (0 << 15) | // b0 (NTSC), b2 (PAL)
1532 ((((frame / (fps * 60)) % 60) / 10) << 12) | // tens of minutes
1533 ((((frame / (fps * 60)) % 60) % 10) << 8) | // units of minutes
1534 (0 << 7) | // b1
1535 (0 << 6) | // b2 (NSC), field phase (PAL)
1536 ((((frame / (fps * 3600) % 24)) / 10) << 4) | // tens of hours
1537 ( (frame / (fps * 3600) % 24)) % 10; // units of hours
1538 }
1539
1540 static void mxf_write_system_item(AVFormatContext *s)
1541 {
1542 MXFContext *mxf = s->priv_data;
1543 ByteIOContext *pb = s->pb;
1544 unsigned frame;
1545 uint32_t time_code;
1546
1547 frame = mxf->timecode_start + mxf->last_indexed_edit_unit + mxf->edit_units_count;
1548
1549 // write system metadata pack
1550 put_buffer(pb, system_metadata_pack_key, 16);
1551 klv_encode_ber4_length(pb, 57);
1552 put_byte(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1553 put_byte(pb, 0x04); // content package rate
1554 put_byte(pb, 0x00); // content package type
1555 put_be16(pb, 0x00); // channel handle
1556 put_be16(pb, frame); // continuity count
1557 if (mxf->essence_container_count > 1)
1558 put_buffer(pb, multiple_desc_ul, 16);
1559 else {
1560 MXFStreamContext *sc = s->streams[0]->priv_data;
1561 put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1562 }
1563 put_byte(pb, 0);
1564 put_be64(pb, 0);
1565 put_be64(pb, 0); // creation date/time stamp
1566
1567 put_byte(pb, 0x81); // SMPTE 12M time code
1568 time_code = ff_framenum_to_12m_time_code(frame, mxf->timecode_drop_frame, mxf->timecode_base);
1569 put_be32(pb, time_code);
1570 put_be32(pb, 0); // binary group data
1571 put_be64(pb, 0);
1572
1573 // write system metadata package set
1574 put_buffer(pb, system_metadata_package_set_key, 16);
1575 klv_encode_ber4_length(pb, 35);
1576 put_byte(pb, 0x83); // UMID
1577 put_be16(pb, 0x20);
1578 mxf_write_umid(s, 1);
1579 }
1580
1581 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1582 {
1583 MXFContext *mxf = s->priv_data;
1584 ByteIOContext *pb = s->pb;
1585 int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1586 (8*mxf->time_base.den); // frame size
1587 int pad;
1588
1589 packet_size += 16 + 4;
1590 packet_size += klv_fill_size(packet_size);
1591
1592 klv_encode_ber4_length(pb, pkt->size);
1593 put_buffer(pb, pkt->data, pkt->size);
1594
1595 // ensure CBR muxing by padding to correct video frame size
1596 pad = packet_size - pkt->size - 16 - 4;
1597 if (pad > 20) {
1598 put_buffer(s->pb, klv_fill_key, 16);
1599 pad -= 16 + 4;
1600 klv_encode_ber4_length(s->pb, pad);
1601 for (; pad; pad--)
1602 put_byte(s->pb, 0);
1603 assert(!(url_ftell(s->pb) & (KAG_SIZE-1)));
1604 } else {
1605 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1606 for (; pad > 0; pad--)
1607 put_byte(s->pb, 0);
1608 }
1609 }
1610
1611 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1612 {
1613 MXFContext *mxf = s->priv_data;
1614 ByteIOContext *pb = s->pb;
1615 int frame_size = pkt->size / st->codec->block_align;
1616 uint8_t *samples = pkt->data;
1617 uint8_t *end = pkt->data + pkt->size;
1618 int i;
1619
1620 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1621
1622 put_byte(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1623 put_le16(pb, frame_size);
1624 put_byte(pb, (1<<st->codec->channels)-1);
1625
1626 while (samples < end) {
1627 for (i = 0; i < st->codec->channels; i++) {
1628 uint32_t sample;
1629 if (st->codec->codec_id == CODEC_ID_PCM_S24LE) {
1630 sample = AV_RL24(samples)<< 4;
1631 samples += 3;
1632 } else {
1633 sample = AV_RL16(samples)<<12;
1634 samples += 2;
1635 }
1636 put_le32(pb, sample | i);
1637 }
1638 for (; i < 8; i++)
1639 put_le32(pb, i);
1640 }
1641 }
1642
1643 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1644 {
1645 MXFContext *mxf = s->priv_data;
1646 ByteIOContext *pb = s->pb;
1647 AVStream *st = s->streams[pkt->stream_index];
1648 MXFStreamContext *sc = st->priv_data;
1649 int flags = 0;
1650
1651 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1652 mxf->index_entries = av_realloc(mxf->index_entries,
1653 (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1654 if (!mxf->index_entries) {
1655 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1656 return -1;
1657 }
1658 }
1659
1660 if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
1661 if (!mxf_parse_mpeg2_frame(s, st, pkt, &flags)) {
1662 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1663 return -1;
1664 }
1665 }
1666
1667 if (!mxf->header_written) {
1668 if (mxf->edit_unit_byte_count) {
1669 mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1670 mxf_write_klv_fill(s);
1671 mxf_write_index_table_segment(s);
1672 } else {
1673 mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1674 }
1675 mxf->header_written = 1;
1676 }
1677
1678 if (st->index == 0) {
1679 if (!mxf->edit_unit_byte_count &&
1680 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1681 !(flags & 0x33)) { // I frame, Gop start
1682 mxf_write_klv_fill(s);
1683 mxf_write_partition(s, 1, 2, body_partition_key, 0);
1684
1685 mxf_write_klv_fill(s);
1686 mxf_write_index_table_segment(s);
1687 }
1688
1689 mxf_write_klv_fill(s);
1690 mxf_write_system_item(s);
1691
1692 if (!mxf->edit_unit_byte_count) {
1693 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1694 mxf->index_entries[mxf->edit_units_count].flags = flags;
1695 mxf->body_offset += KAG_SIZE; // size of system element
1696 }
1697 mxf->edit_units_count++;
1698 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1699 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1700 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1701 }
1702
1703 mxf_write_klv_fill(s);
1704 put_buffer(pb, sc->track_essence_element_key, 16); // write key
1705 if (s->oformat == &mxf_d10_muxer) {
1706 if (st->codec->codec_type == CODEC_TYPE_VIDEO)
1707 mxf_write_d10_video_packet(s, st, pkt);
1708 else
1709 mxf_write_d10_audio_packet(s, st, pkt);
1710 } else {
1711 klv_encode_ber4_length(pb, pkt->size); // write length
1712 put_buffer(pb, pkt->data, pkt->size);
1713 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
1714 }
1715
1716 put_flush_packet(pb);
1717
1718 return 0;
1719 }
1720
1721 static void mxf_write_random_index_pack(AVFormatContext *s)
1722 {
1723 MXFContext *mxf = s->priv_data;
1724 ByteIOContext *pb = s->pb;
1725 uint64_t pos = url_ftell(pb);
1726 int i;
1727
1728 put_buffer(pb, random_index_pack_key, 16);
1729 klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count);
1730
1731 if (mxf->edit_unit_byte_count)
1732 put_be32(pb, 1); // BodySID of header partition
1733 else
1734 put_be32(pb, 0);
1735 put_be64(pb, 0); // offset of header partition
1736
1737 for (i = 0; i < mxf->body_partitions_count; i++) {
1738 put_be32(pb, 1); // BodySID
1739 put_be64(pb, mxf->body_partition_offset[i]);
1740 }
1741
1742 put_be32(pb, 0); // BodySID of footer partition
1743 put_be64(pb, mxf->footer_partition_offset);
1744
1745 put_be32(pb, url_ftell(pb) - pos + 4);
1746 }
1747
1748 static int mxf_write_footer(AVFormatContext *s)
1749 {
1750 MXFContext *mxf = s->priv_data;
1751 ByteIOContext *pb = s->pb;
1752
1753 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1754
1755 mxf_write_klv_fill(s);
1756 mxf->footer_partition_offset = url_ftell(pb);
1757 if (mxf->edit_unit_byte_count) { // no need to repeat index
1758 mxf_write_partition(s, 0, 0, footer_partition_key, 0);
1759 } else {
1760 mxf_write_partition(s, 0, 2, footer_partition_key, 0);
1761
1762 mxf_write_klv_fill(s);
1763 mxf_write_index_table_segment(s);
1764 }
1765
1766 mxf_write_klv_fill(s);
1767 mxf_write_random_index_pack(s);
1768
1769 if (!url_is_streamed(s->pb)) {
1770 url_fseek(pb, 0, SEEK_SET);
1771 if (mxf->edit_unit_byte_count) {
1772 mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
1773 mxf_write_klv_fill(s);
1774 mxf_write_index_table_segment(s);
1775 } else {
1776 mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
1777 }
1778 }
1779
1780 put_flush_packet(pb);
1781
1782 ff_audio_interleave_close(s);
1783
1784 av_freep(&mxf->index_entries);
1785 av_freep(&mxf->body_partition_offset);
1786 av_freep(&mxf->timecode_track->priv_data);
1787 av_freep(&mxf->timecode_track);
1788
1789 mxf_free(s);
1790
1791 return 0;
1792 }
1793
1794 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1795 {
1796 AVPacketList *pktl;
1797 int stream_count = 0;
1798 int streams[MAX_STREAMS];
1799
1800 memset(streams, 0, sizeof(streams));
1801 pktl = s->packet_buffer;
1802 while (pktl) {
1803 //av_log(s, AV_LOG_DEBUG, "show st:%d dts:%lld\n", pktl->pkt.stream_index, pktl->pkt.dts);
1804 if (!streams[pktl->pkt.stream_index])
1805 stream_count++;
1806 streams[pktl->pkt.stream_index]++;
1807 pktl = pktl->next;
1808 }
1809
1810 if (stream_count && (s->nb_streams == stream_count || flush)) {
1811 pktl = s->packet_buffer;
1812 if (s->nb_streams != stream_count) {
1813 AVPacketList *last = NULL;
1814 // find last packet in edit unit
1815 while (pktl) {
1816 if (!stream_count || pktl->pkt.stream_index == 0)
1817 break;
1818 last = pktl;
1819 pktl = pktl->next;
1820 stream_count--;
1821 }
1822 // purge packet queue
1823 while (pktl) {
1824 AVPacketList *next = pktl->next;
1825 av_free_packet(&pktl->pkt);
1826 av_freep(&pktl);
1827 pktl = next;
1828 }
1829 if (last)
1830 last->next = NULL;
1831 else {
1832 s->packet_buffer = NULL;
1833 goto out;
1834 }
1835 pktl = s->packet_buffer;
1836 }
1837
1838 *out = pktl->pkt;
1839 //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts);
1840 s->packet_buffer = pktl->next;
1841 av_freep(&pktl);
1842 return 1;
1843 } else {
1844 out:
1845 av_init_packet(out);
1846 return 0;
1847 }
1848 }
1849
1850 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
1851 {
1852 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
1853 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
1854
1855 return next->dts > pkt->dts ||
1856 (next->dts == pkt->dts && sc->order < sc2->order);
1857 }
1858
1859 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1860 {
1861 return ff_audio_rechunk_interleave(s, out, pkt, flush,
1862 mxf_interleave_get_packet, mxf_compare_timestamps);
1863 }
1864
1865 AVOutputFormat mxf_muxer = {
1866 "mxf",
1867 NULL_IF_CONFIG_SMALL("Material eXchange Format"),
1868 "application/mxf",
1869 "mxf",
1870 sizeof(MXFContext),
1871 CODEC_ID_PCM_S16LE,
1872 CODEC_ID_MPEG2VIDEO,
1873 mxf_write_header,
1874 mxf_write_packet,
1875 mxf_write_footer,
1876 AVFMT_NOTIMESTAMPS,
1877 NULL,
1878 mxf_interleave,
1879 };
1880
1881 AVOutputFormat mxf_d10_muxer = {
1882 "mxf_d10",
1883 NULL_IF_CONFIG_SMALL("Material eXchange Format, D-10 Mapping"),
1884 "application/mxf",
1885 NULL,
1886 sizeof(MXFContext),
1887 CODEC_ID_PCM_S16LE,
1888 CODEC_ID_MPEG2VIDEO,
1889 mxf_write_header,
1890 mxf_write_packet,
1891 mxf_write_footer,
1892 AVFMT_NOTIMESTAMPS,
1893 NULL,
1894 mxf_interleave,
1895 };
ffmpeg Lagarith lossless decoder