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>
6 * This file is part of FFmpeg.
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.
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.
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
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
38 #include "libavutil/opt.h"
39 #include "libavutil/random_seed.h"
40 #include "libavutil/timecode.h"
41 #include "libavcodec/bytestream.h"
42 #include "audiointerleave.h"
47 static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 };
48 static const int NTSC_60_samples_per_frame[] = { 801, 801, 801, 801, 800, 0 };
49 static const int PAL_samples_per_frame[] = { 1920, 0 };
50 static const int PAL_50_samples_per_frame[] = { 960, 0 };
52 extern AVOutputFormat ff_mxf_d10_muxer;
54 #define EDIT_UNITS_PER_BODY 250
65 unsigned slice_offset; ///< offset of audio slice
66 uint16_t temporal_ref;
70 AudioInterleaveContext aic;
71 UID track_essence_element_key;
72 int index; ///< index in mxf_essence_container_uls table
74 int order; ///< interleaving order if dts are equal
75 int interlaced; ///< whether picture is interlaced
76 int field_dominance; ///< tff=1, bff=2
77 int temporal_reordering;
78 AVRational aspect_ratio; ///< display aspect ratio
79 int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
86 void (*write_desc)(AVFormatContext *, AVStream *);
87 } MXFContainerEssenceEntry;
92 } mxf_essence_mappings[] = {
93 { CODEC_ID_MPEG2VIDEO, 0 },
94 { CODEC_ID_PCM_S24LE, 1 },
95 { CODEC_ID_PCM_S16LE, 1 },
99 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
100 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
101 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
102 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
103 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
105 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
106 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
107 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
108 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
109 mxf_write_mpegvideo_desc },
110 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
111 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
112 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
113 mxf_write_aes3_desc },
114 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
115 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
116 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
117 mxf_write_wav_desc },
118 // D-10 625/50 PAL 50mb/s
119 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
120 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
121 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
122 mxf_write_cdci_desc },
123 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
124 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
125 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
126 mxf_write_generic_sound_desc },
127 // D-10 525/60 NTSC 50mb/s
128 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
129 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
130 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
131 mxf_write_cdci_desc },
132 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
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 },
135 mxf_write_generic_sound_desc },
136 // D-10 625/50 PAL 40mb/s
137 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
138 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
139 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
140 mxf_write_cdci_desc },
141 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
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 },
144 mxf_write_generic_sound_desc },
145 // D-10 525/60 NTSC 40mb/s
146 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
147 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
148 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
149 mxf_write_cdci_desc },
150 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
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 },
153 mxf_write_generic_sound_desc },
154 // D-10 625/50 PAL 30mb/s
155 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
156 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
157 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
158 mxf_write_cdci_desc },
159 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
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 },
162 mxf_write_generic_sound_desc },
163 // D-10 525/60 NTSC 30mb/s
164 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
165 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
166 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
167 mxf_write_cdci_desc },
168 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
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 },
171 mxf_write_generic_sound_desc },
172 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
173 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
174 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
178 typedef struct MXFContext {
180 int64_t footer_partition_offset;
181 int essence_container_count;
182 AVRational time_base;
184 MXFIndexEntry *index_entries;
185 unsigned edit_units_count;
186 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
187 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
188 int last_indexed_edit_unit;
189 uint64_t *body_partition_offset;
190 unsigned body_partitions_count;
191 int last_key_index; ///< index of last key frame
193 AVTimecode tc; ///< timecode context
194 AVStream *timecode_track;
195 int timecode_base; ///< rounded time code base (25 or 30)
196 int edit_unit_byte_count; ///< fixed edit unit byte count
197 uint64_t body_offset;
198 uint32_t instance_number;
199 uint8_t umid[16]; ///< unique material identifier
202 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
203 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
206 * complete key for operation pattern, partitions, and primer pack
208 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
209 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
210 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
211 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
212 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
213 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
214 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
215 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
216 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
219 * partial key for header metadata
221 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
222 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
225 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
227 static const MXFLocalTagPair mxf_local_tag_batch[] = {
229 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
230 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
231 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
232 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
233 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
234 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
235 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
236 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
238 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
239 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
240 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
241 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
242 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
243 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
245 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
246 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
247 // Essence Container Data
248 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
249 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
251 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
252 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
253 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
254 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
255 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
257 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
258 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
259 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
260 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
261 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
263 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
264 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
265 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
267 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
268 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
269 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
270 // Timecode Component
271 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
272 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
273 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
275 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
276 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
277 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
278 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
279 // Generic Picture Essence Descriptor
280 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
281 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
282 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
283 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
284 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
285 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
286 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
287 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
288 { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
289 // CDCI Picture Essence Descriptor
290 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
291 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
292 // Generic Sound Essence Descriptor
293 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
294 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
295 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
296 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
297 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
298 // Index Table Segment
299 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
300 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
301 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
302 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
303 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
304 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
305 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
306 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
307 // MPEG video Descriptor
308 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
309 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
310 // Wave Audio Essence Descriptor
311 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
312 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
315 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
317 avio_write(pb, uuid_base, 12);
319 avio_wb16(pb, value);
322 static void mxf_write_umid(AVFormatContext *s, int type)
324 MXFContext *mxf = s->priv_data;
325 avio_write(s->pb, umid_ul, 13);
326 avio_wb24(s->pb, mxf->instance_number);
327 avio_write(s->pb, mxf->umid, 15);
328 avio_w8(s->pb, type);
331 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
333 avio_wb32(pb, ref_count);
337 static int klv_ber_length(uint64_t len)
342 return (av_log2(len) >> 3) + 2;
345 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
347 // Determine the best BER size
355 size = (av_log2(len) >> 3) + 1;
358 avio_w8(pb, 0x80 + size);
361 avio_w8(pb, len >> 8 * size & 0xff);
366 static void klv_encode_ber4_length(AVIOContext *pb, int len)
368 avio_w8(pb, 0x80 + 3);
373 * Get essence container ul index
375 static int mxf_get_essence_container_ul_index(enum CodecID id)
378 for (i = 0; mxf_essence_mappings[i].id; i++)
379 if (mxf_essence_mappings[i].id == id)
380 return mxf_essence_mappings[i].index;
384 static void mxf_write_primer_pack(AVFormatContext *s)
386 AVIOContext *pb = s->pb;
387 int local_tag_number, i = 0;
389 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
391 avio_write(pb, primer_pack_key, 16);
392 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
394 avio_wb32(pb, local_tag_number); // local_tag num
395 avio_wb32(pb, 18); // item size, always 18 according to the specs
397 for (i = 0; i < local_tag_number; i++) {
398 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
399 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
403 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
409 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
411 avio_write(pb, header_metadata_key, 13);
412 avio_wb24(pb, value);
415 static void mxf_free(AVFormatContext *s)
419 for (i = 0; i < s->nb_streams; i++) {
420 AVStream *st = s->streams[i];
421 av_freep(&st->priv_data);
425 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
427 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
428 while (uls->uid[0]) {
436 static void mxf_write_essence_container_refs(AVFormatContext *s)
438 MXFContext *c = s->priv_data;
439 AVIOContext *pb = s->pb;
442 mxf_write_refs_count(pb, c->essence_container_count);
443 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
444 for (i = 0; i < c->essence_container_count; i++) {
445 MXFStreamContext *sc = s->streams[i]->priv_data;
446 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
450 static void mxf_write_preface(AVFormatContext *s)
452 MXFContext *mxf = s->priv_data;
453 AVIOContext *pb = s->pb;
455 mxf_write_metadata_key(pb, 0x012f00);
456 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
457 klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count);
459 // write preface set uid
460 mxf_write_local_tag(pb, 16, 0x3C0A);
461 mxf_write_uuid(pb, Preface, 0);
462 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
464 // last modified date
465 mxf_write_local_tag(pb, 8, 0x3B02);
466 avio_wb64(pb, mxf->timestamp);
469 mxf_write_local_tag(pb, 2, 0x3B05);
470 avio_wb16(pb, 258); // v1.2
472 // write identification_refs
473 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
474 mxf_write_refs_count(pb, 1);
475 mxf_write_uuid(pb, Identification, 0);
477 // write content_storage_refs
478 mxf_write_local_tag(pb, 16, 0x3B03);
479 mxf_write_uuid(pb, ContentStorage, 0);
481 // operational pattern
482 mxf_write_local_tag(pb, 16, 0x3B09);
483 avio_write(pb, op1a_ul, 16);
485 // write essence_container_refs
486 mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A);
487 mxf_write_essence_container_refs(s);
489 // write dm_scheme_refs
490 mxf_write_local_tag(pb, 8, 0x3B0B);
495 * Write a local tag containing an ascii string as utf-16
497 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
499 int i, size = strlen(value);
500 mxf_write_local_tag(pb, size*2, tag);
501 for (i = 0; i < size; i++)
502 avio_wb16(pb, value[i]);
505 static void mxf_write_identification(AVFormatContext *s)
507 MXFContext *mxf = s->priv_data;
508 AVIOContext *pb = s->pb;
509 const char *company = "FFmpeg";
510 const char *product = "OP1a Muxer";
514 mxf_write_metadata_key(pb, 0x013000);
515 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
517 version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
518 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
519 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
520 klv_encode_ber_length(pb, length);
523 mxf_write_local_tag(pb, 16, 0x3C0A);
524 mxf_write_uuid(pb, Identification, 0);
525 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
527 // write generation uid
528 mxf_write_local_tag(pb, 16, 0x3C09);
529 mxf_write_uuid(pb, Identification, 1);
531 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
532 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
533 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
536 mxf_write_local_tag(pb, 16, 0x3C05);
537 mxf_write_uuid(pb, Identification, 2);
540 mxf_write_local_tag(pb, 8, 0x3C06);
541 avio_wb64(pb, mxf->timestamp);
544 static void mxf_write_content_storage(AVFormatContext *s)
546 AVIOContext *pb = s->pb;
548 mxf_write_metadata_key(pb, 0x011800);
549 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
550 klv_encode_ber_length(pb, 92);
553 mxf_write_local_tag(pb, 16, 0x3C0A);
554 mxf_write_uuid(pb, ContentStorage, 0);
555 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
557 // write package reference
558 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
559 mxf_write_refs_count(pb, 2);
560 mxf_write_uuid(pb, MaterialPackage, 0);
561 mxf_write_uuid(pb, SourcePackage, 0);
563 // write essence container data
564 mxf_write_local_tag(pb, 8 + 16, 0x1902);
565 mxf_write_refs_count(pb, 1);
566 mxf_write_uuid(pb, EssenceContainerData, 0);
569 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
571 MXFContext *mxf = s->priv_data;
572 AVIOContext *pb = s->pb;
573 MXFStreamContext *sc = st->priv_data;
575 mxf_write_metadata_key(pb, 0x013b00);
576 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
577 klv_encode_ber_length(pb, 80);
580 mxf_write_local_tag(pb, 16, 0x3C0A);
581 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
582 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
585 mxf_write_local_tag(pb, 4, 0x4801);
586 avio_wb32(pb, st->index+2);
588 // write track number
589 mxf_write_local_tag(pb, 4, 0x4804);
590 if (type == MaterialPackage)
591 avio_wb32(pb, 0); // track number of material package is 0
593 avio_write(pb, sc->track_essence_element_key + 12, 4);
595 mxf_write_local_tag(pb, 8, 0x4B01);
596 avio_wb32(pb, mxf->time_base.den);
597 avio_wb32(pb, mxf->time_base.num);
600 mxf_write_local_tag(pb, 8, 0x4B02);
603 // write sequence refs
604 mxf_write_local_tag(pb, 16, 0x4803);
605 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
608 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 };
610 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
612 MXFContext *mxf = s->priv_data;
613 AVIOContext *pb = s->pb;
615 // find data define uls
616 mxf_write_local_tag(pb, 16, 0x0201);
617 if (st == mxf->timecode_track)
618 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
620 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
621 avio_write(pb, data_def_ul->uid, 16);
625 mxf_write_local_tag(pb, 8, 0x0202);
626 avio_wb64(pb, mxf->duration);
629 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
631 MXFContext *mxf = s->priv_data;
632 AVIOContext *pb = s->pb;
633 enum MXFMetadataSetType component;
635 mxf_write_metadata_key(pb, 0x010f00);
636 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
637 klv_encode_ber_length(pb, 80);
639 mxf_write_local_tag(pb, 16, 0x3C0A);
640 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
642 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
643 mxf_write_common_fields(s, st);
645 // write structural component
646 mxf_write_local_tag(pb, 16 + 8, 0x1001);
647 mxf_write_refs_count(pb, 1);
648 if (st == mxf->timecode_track)
649 component = TimecodeComponent;
651 component = SourceClip;
652 if (type == SourcePackage)
653 component += TypeBottom;
654 mxf_write_uuid(pb, component, st->index);
657 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
659 MXFContext *mxf = s->priv_data;
660 AVIOContext *pb = s->pb;
662 mxf_write_metadata_key(pb, 0x011400);
663 klv_encode_ber_length(pb, 75);
666 mxf_write_local_tag(pb, 16, 0x3C0A);
667 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
668 TimecodeComponent + TypeBottom, st->index);
670 mxf_write_common_fields(s, st);
673 mxf_write_local_tag(pb, 8, 0x1501);
674 avio_wb64(pb, mxf->tc.start);
676 // Rounded Time Code Base
677 mxf_write_local_tag(pb, 2, 0x1502);
678 avio_wb16(pb, mxf->timecode_base);
681 mxf_write_local_tag(pb, 1, 0x1503);
682 avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
685 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
687 AVIOContext *pb = s->pb;
690 mxf_write_metadata_key(pb, 0x011100);
691 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
692 klv_encode_ber_length(pb, 108);
695 mxf_write_local_tag(pb, 16, 0x3C0A);
696 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
698 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
699 mxf_write_common_fields(s, st);
701 // write start_position
702 mxf_write_local_tag(pb, 8, 0x1201);
705 // write source package uid, end of the reference
706 mxf_write_local_tag(pb, 32, 0x1101);
707 if (type == SourcePackage) {
708 for (i = 0; i < 4; i++)
711 mxf_write_umid(s, 1);
713 // write source track id
714 mxf_write_local_tag(pb, 4, 0x1102);
715 if (type == SourcePackage)
718 avio_wb32(pb, st->index+2);
721 static void mxf_write_multi_descriptor(AVFormatContext *s)
723 MXFContext *mxf = s->priv_data;
724 AVIOContext *pb = s->pb;
728 mxf_write_metadata_key(pb, 0x014400);
729 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
730 klv_encode_ber_length(pb, 64 + 16 * s->nb_streams);
732 mxf_write_local_tag(pb, 16, 0x3C0A);
733 mxf_write_uuid(pb, MultipleDescriptor, 0);
734 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
737 mxf_write_local_tag(pb, 8, 0x3001);
738 avio_wb32(pb, mxf->time_base.den);
739 avio_wb32(pb, mxf->time_base.num);
741 // write essence container ul
742 mxf_write_local_tag(pb, 16, 0x3004);
743 if (mxf->essence_container_count > 1)
744 ul = multiple_desc_ul;
746 MXFStreamContext *sc = s->streams[0]->priv_data;
747 ul = mxf_essence_container_uls[sc->index].container_ul;
749 avio_write(pb, ul, 16);
751 // write sub descriptor refs
752 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
753 mxf_write_refs_count(pb, s->nb_streams);
754 for (i = 0; i < s->nb_streams; i++)
755 mxf_write_uuid(pb, SubDescriptor, i);
758 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
760 MXFContext *mxf = s->priv_data;
761 MXFStreamContext *sc = st->priv_data;
762 AVIOContext *pb = s->pb;
764 avio_write(pb, key, 16);
765 klv_encode_ber4_length(pb, size+20+8+12+20);
767 mxf_write_local_tag(pb, 16, 0x3C0A);
768 mxf_write_uuid(pb, SubDescriptor, st->index);
770 mxf_write_local_tag(pb, 4, 0x3006);
771 avio_wb32(pb, st->index+2);
773 mxf_write_local_tag(pb, 8, 0x3001);
774 avio_wb32(pb, mxf->time_base.den);
775 avio_wb32(pb, mxf->time_base.num);
777 mxf_write_local_tag(pb, 16, 0x3004);
778 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
781 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
782 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
783 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
784 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
785 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
787 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
789 MXFStreamContext *sc = st->priv_data;
790 AVIOContext *pb = s->pb;
791 int stored_height = (st->codec->height+15)/16*16;
794 unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
795 if (sc->interlaced && sc->field_dominance)
798 mxf_write_generic_desc(s, st, key, desc_size);
800 mxf_write_local_tag(pb, 4, 0x3203);
801 avio_wb32(pb, st->codec->width);
803 mxf_write_local_tag(pb, 4, 0x3202);
804 avio_wb32(pb, stored_height>>sc->interlaced);
806 mxf_write_local_tag(pb, 4, 0x3209);
807 avio_wb32(pb, st->codec->width);
809 if (st->codec->height == 608) // PAL + VBI
810 display_height = 576;
811 else if (st->codec->height == 512) // NTSC + VBI
812 display_height = 486;
814 display_height = st->codec->height;
816 mxf_write_local_tag(pb, 4, 0x3208);
817 avio_wb32(pb, display_height>>sc->interlaced);
820 mxf_write_local_tag(pb, 4, 0x3301);
823 // horizontal subsampling
824 mxf_write_local_tag(pb, 4, 0x3302);
828 mxf_write_local_tag(pb, 1, 0x320C);
829 avio_w8(pb, sc->interlaced);
832 switch (st->codec->height) {
833 case 576: f1 = 23; f2 = 336; break;
834 case 608: f1 = 7; f2 = 320; break;
835 case 480: f1 = 20; f2 = 283; break;
836 case 512: f1 = 7; f2 = 270; break;
837 case 720: f1 = 26; f2 = 0; break; // progressive
838 case 1080: f1 = 21; f2 = 584; break;
839 default: f1 = 0; f2 = 0; break;
842 if (!sc->interlaced) {
847 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
848 avio_wb32(pb, sc->interlaced ? 2 : 1);
854 mxf_write_local_tag(pb, 8, 0x320E);
855 avio_wb32(pb, sc->aspect_ratio.num);
856 avio_wb32(pb, sc->aspect_ratio.den);
858 mxf_write_local_tag(pb, 16, 0x3201);
859 avio_write(pb, *sc->codec_ul, 16);
861 if (sc->interlaced && sc->field_dominance) {
862 mxf_write_local_tag(pb, 1, 0x3212);
863 avio_w8(pb, sc->field_dominance);
868 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
870 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
873 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
875 AVIOContext *pb = s->pb;
876 int profile_and_level = (st->codec->profile<<4) | st->codec->level;
878 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
881 mxf_write_local_tag(pb, 4, 0x8000);
882 avio_wb32(pb, st->codec->bit_rate);
885 mxf_write_local_tag(pb, 1, 0x8007);
886 if (!st->codec->profile)
887 profile_and_level |= 0x80; // escape bit
888 avio_w8(pb, profile_and_level);
891 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
893 AVIOContext *pb = s->pb;
895 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
898 mxf_write_local_tag(pb, 1, 0x3D02);
901 // write audio sampling rate
902 mxf_write_local_tag(pb, 8, 0x3D03);
903 avio_wb32(pb, st->codec->sample_rate);
906 mxf_write_local_tag(pb, 4, 0x3D07);
907 avio_wb32(pb, st->codec->channels);
909 mxf_write_local_tag(pb, 4, 0x3D01);
910 avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
913 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
915 AVIOContext *pb = s->pb;
917 mxf_write_generic_sound_common(s, st, key, size+6+8);
919 mxf_write_local_tag(pb, 2, 0x3D0A);
920 avio_wb16(pb, st->codec->block_align);
923 mxf_write_local_tag(pb, 4, 0x3D09);
924 avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
927 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
929 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
932 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
934 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
937 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
939 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
942 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
944 MXFContext *mxf = s->priv_data;
945 AVIOContext *pb = s->pb;
946 int i, track_count = s->nb_streams+1;
948 if (type == MaterialPackage) {
949 mxf_write_metadata_key(pb, 0x013600);
950 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
951 klv_encode_ber_length(pb, 92 + 16*track_count);
953 mxf_write_metadata_key(pb, 0x013700);
954 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
955 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
959 mxf_write_local_tag(pb, 16, 0x3C0A);
960 mxf_write_uuid(pb, type, 0);
961 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
962 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
964 // write package umid
965 mxf_write_local_tag(pb, 32, 0x4401);
966 mxf_write_umid(s, type == SourcePackage);
967 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
969 // package creation date
970 mxf_write_local_tag(pb, 8, 0x4405);
971 avio_wb64(pb, mxf->timestamp);
973 // package modified date
974 mxf_write_local_tag(pb, 8, 0x4404);
975 avio_wb64(pb, mxf->timestamp);
978 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
979 mxf_write_refs_count(pb, track_count);
980 mxf_write_uuid(pb, type == MaterialPackage ? Track :
981 Track + TypeBottom, -1); // timecode track
982 for (i = 0; i < s->nb_streams; i++)
983 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
985 // write multiple descriptor reference
986 if (type == SourcePackage) {
987 mxf_write_local_tag(pb, 16, 0x4701);
988 if (s->nb_streams > 1) {
989 mxf_write_uuid(pb, MultipleDescriptor, 0);
990 mxf_write_multi_descriptor(s);
992 mxf_write_uuid(pb, SubDescriptor, 0);
995 // write timecode track
996 mxf_write_track(s, mxf->timecode_track, type);
997 mxf_write_sequence(s, mxf->timecode_track, type);
998 mxf_write_timecode_component(s, mxf->timecode_track, type);
1000 for (i = 0; i < s->nb_streams; i++) {
1001 AVStream *st = s->streams[i];
1002 mxf_write_track(s, st, type);
1003 mxf_write_sequence(s, st, type);
1004 mxf_write_structural_component(s, st, type);
1006 if (type == SourcePackage) {
1007 MXFStreamContext *sc = st->priv_data;
1008 mxf_essence_container_uls[sc->index].write_desc(s, st);
1013 static int mxf_write_essence_container_data(AVFormatContext *s)
1015 AVIOContext *pb = s->pb;
1017 mxf_write_metadata_key(pb, 0x012300);
1018 klv_encode_ber_length(pb, 72);
1020 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1021 mxf_write_uuid(pb, EssenceContainerData, 0);
1023 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1024 mxf_write_umid(s, 1);
1026 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1029 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1035 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1037 mxf_write_preface(s);
1038 mxf_write_identification(s);
1039 mxf_write_content_storage(s);
1040 mxf_write_package(s, MaterialPackage);
1041 mxf_write_package(s, SourcePackage);
1042 mxf_write_essence_container_data(s);
1046 static unsigned klv_fill_size(uint64_t size)
1048 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1049 if (pad < 20) // smallest fill item possible
1050 return pad + KAG_SIZE;
1052 return pad & (KAG_SIZE-1);
1055 static void mxf_write_index_table_segment(AVFormatContext *s)
1057 MXFContext *mxf = s->priv_data;
1058 AVIOContext *pb = s->pb;
1059 int i, j, temporal_reordering = 0;
1060 int key_index = mxf->last_key_index;
1062 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1064 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1067 avio_write(pb, index_table_segment_key, 16);
1069 if (mxf->edit_unit_byte_count) {
1070 klv_encode_ber_length(pb, 80);
1072 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 +
1073 12+mxf->edit_units_count*(11+mxf->slice_count*4));
1077 mxf_write_local_tag(pb, 16, 0x3C0A);
1078 mxf_write_uuid(pb, IndexTableSegment, 0);
1081 mxf_write_local_tag(pb, 8, 0x3F0B);
1082 avio_wb32(pb, mxf->time_base.den);
1083 avio_wb32(pb, mxf->time_base.num);
1085 // index start position
1086 mxf_write_local_tag(pb, 8, 0x3F0C);
1087 avio_wb64(pb, mxf->last_indexed_edit_unit);
1090 mxf_write_local_tag(pb, 8, 0x3F0D);
1091 if (mxf->edit_unit_byte_count)
1092 avio_wb64(pb, 0); // index table covers whole container
1094 avio_wb64(pb, mxf->edit_units_count);
1096 // edit unit byte count
1097 mxf_write_local_tag(pb, 4, 0x3F05);
1098 avio_wb32(pb, mxf->edit_unit_byte_count);
1101 mxf_write_local_tag(pb, 4, 0x3F06);
1105 mxf_write_local_tag(pb, 4, 0x3F07);
1108 if (!mxf->edit_unit_byte_count) {
1109 // real slice count - 1
1110 mxf_write_local_tag(pb, 1, 0x3F08);
1111 avio_w8(pb, mxf->slice_count);
1113 // delta entry array
1114 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1115 avio_wb32(pb, s->nb_streams+1); // num of entries
1116 avio_wb32(pb, 6); // size of one entry
1117 // write system item delta entry
1119 avio_w8(pb, 0); // slice entry
1120 avio_wb32(pb, 0); // element delta
1121 for (i = 0; i < s->nb_streams; i++) {
1122 AVStream *st = s->streams[i];
1123 MXFStreamContext *sc = st->priv_data;
1124 avio_w8(pb, sc->temporal_reordering);
1125 if (sc->temporal_reordering)
1126 temporal_reordering = 1;
1127 if (i == 0) { // video track
1128 avio_w8(pb, 0); // slice number
1129 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1130 } else { // audio track
1131 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1132 audio_frame_size += klv_fill_size(audio_frame_size);
1134 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1138 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1139 avio_wb32(pb, mxf->edit_units_count); // num of entries
1140 avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1142 for (i = 0; i < mxf->edit_units_count; i++) {
1143 int temporal_offset = 0;
1145 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1146 mxf->last_key_index = key_index;
1150 if (temporal_reordering) {
1151 int pic_num_in_gop = i - key_index;
1152 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1153 for (j = key_index; j < mxf->edit_units_count; j++) {
1154 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1157 if (j == mxf->edit_units_count)
1158 av_log(s, AV_LOG_WARNING, "missing frames\n");
1159 temporal_offset = j - key_index - pic_num_in_gop;
1162 avio_w8(pb, temporal_offset);
1164 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1165 avio_w8(pb, mxf->last_key_index - i);
1167 avio_w8(pb, key_index - i); // key frame offset
1168 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1169 mxf->last_key_index = key_index;
1172 if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1173 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1174 mxf->index_entries[i].flags |= 0x80; // random access
1175 avio_w8(pb, mxf->index_entries[i].flags);
1177 avio_wb64(pb, mxf->index_entries[i].offset);
1178 if (s->nb_streams > 1)
1179 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1182 mxf->last_key_index = key_index - mxf->edit_units_count;
1183 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1184 mxf->edit_units_count = 0;
1188 static void mxf_write_klv_fill(AVFormatContext *s)
1190 unsigned pad = klv_fill_size(avio_tell(s->pb));
1192 avio_write(s->pb, klv_fill_key, 16);
1194 klv_encode_ber4_length(s->pb, pad);
1197 assert(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1201 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1203 const uint8_t *key, int write_metadata)
1205 MXFContext *mxf = s->priv_data;
1206 AVIOContext *pb = s->pb;
1207 int64_t header_byte_count_offset;
1208 unsigned index_byte_count = 0;
1209 uint64_t partition_offset = avio_tell(pb);
1211 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1212 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1213 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1214 else if (mxf->edit_unit_byte_count && indexsid)
1215 index_byte_count = 80;
1217 if (index_byte_count) {
1218 // add encoded ber length
1219 index_byte_count += 16 + klv_ber_length(index_byte_count);
1220 index_byte_count += klv_fill_size(index_byte_count);
1223 if (!memcmp(key, body_partition_key, 16)) {
1224 mxf->body_partition_offset =
1225 av_realloc(mxf->body_partition_offset,
1226 (mxf->body_partitions_count+1)*
1227 sizeof(*mxf->body_partition_offset));
1228 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1232 avio_write(pb, key, 16);
1233 klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count);
1235 // write partition value
1236 avio_wb16(pb, 1); // majorVersion
1237 avio_wb16(pb, 2); // minorVersion
1238 avio_wb32(pb, KAG_SIZE); // KAGSize
1240 avio_wb64(pb, partition_offset); // ThisPartition
1242 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1243 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1244 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1245 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1249 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1252 header_byte_count_offset = avio_tell(pb);
1253 avio_wb64(pb, 0); // headerByteCount, update later
1256 avio_wb64(pb, index_byte_count); // indexByteCount
1257 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1260 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1261 avio_wb64(pb, mxf->body_offset);
1265 avio_wb32(pb, bodysid); // bodySID
1267 // operational pattern
1268 avio_write(pb, op1a_ul, 16);
1270 // essence container
1271 mxf_write_essence_container_refs(s);
1273 if (write_metadata) {
1274 // mark the start of the headermetadata and calculate metadata size
1276 unsigned header_byte_count;
1278 mxf_write_klv_fill(s);
1279 start = avio_tell(s->pb);
1280 mxf_write_primer_pack(s);
1281 mxf_write_header_metadata_sets(s);
1282 pos = avio_tell(s->pb);
1283 header_byte_count = pos - start + klv_fill_size(pos);
1285 // update header_byte_count
1286 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1287 avio_wb64(pb, header_byte_count);
1288 avio_seek(pb, pos, SEEK_SET);
1294 static const UID mxf_mpeg2_codec_uls[] = {
1295 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1296 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1297 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1298 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1299 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1300 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1301 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1302 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1303 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1304 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1307 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1309 int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1311 if (avctx->profile == 4) { // Main
1312 if (avctx->level == 8) // Main
1313 return &mxf_mpeg2_codec_uls[0+long_gop];
1314 else if (avctx->level == 4) // High
1315 return &mxf_mpeg2_codec_uls[4+long_gop];
1316 else if (avctx->level == 6) // High 14
1317 return &mxf_mpeg2_codec_uls[8+long_gop];
1318 } else if (avctx->profile == 0) { // 422
1319 if (avctx->level == 5) // Main
1320 return &mxf_mpeg2_codec_uls[2+long_gop];
1321 else if (avctx->level == 2) // High
1322 return &mxf_mpeg2_codec_uls[6+long_gop];
1327 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1328 AVPacket *pkt, MXFIndexEntry *e)
1330 MXFStreamContext *sc = st->priv_data;
1334 for(i = 0; i < pkt->size - 4; i++) {
1335 c = (c<<8) + pkt->data[i];
1337 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1338 st->codec->profile = pkt->data[i+1] & 0x07;
1339 st->codec->level = pkt->data[i+2] >> 4;
1340 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1341 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1343 sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1346 } else if (c == 0x1b8) { // gop
1347 if (pkt->data[i+4]>>6 & 0x01) { // closed
1349 if (e->flags & 0x40) // sequence header present
1350 e->flags |= 0x80; // random access
1352 } else if (c == 0x1b3) { // seq
1354 switch ((pkt->data[i+4]>>4) & 0xf) {
1355 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1356 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1357 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1359 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1360 st->codec->width, st->codec->height, 1024*1024);
1362 } else if (c == 0x100) { // pic
1363 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1364 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1365 if (pict_type == 2) { // P frame
1367 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1368 } else if (pict_type == 3) { // B frame
1370 e->flags |= 0x13; // only backward prediction
1373 sc->temporal_reordering = -1;
1374 } else if (!pict_type) {
1375 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1380 if (s->oformat != &ff_mxf_d10_muxer)
1381 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1382 return !!sc->codec_ul;
1385 static uint64_t mxf_parse_timestamp(time_t timestamp)
1387 struct tm *time = gmtime(×tamp);
1390 return (uint64_t)(time->tm_year+1900) << 48 |
1391 (uint64_t)(time->tm_mon+1) << 40 |
1392 (uint64_t) time->tm_mday << 32 |
1393 time->tm_hour << 24 |
1394 time->tm_min << 16 |
1398 static void mxf_gen_umid(AVFormatContext *s)
1400 MXFContext *mxf = s->priv_data;
1401 uint32_t seed = av_get_random_seed();
1402 uint64_t umid = seed + 0x5294713400000000LL;
1404 AV_WB64(mxf->umid , umid);
1405 AV_WB64(mxf->umid+8, umid>>8);
1407 mxf->instance_number = seed;
1410 static int mxf_write_header(AVFormatContext *s)
1412 MXFContext *mxf = s->priv_data;
1414 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1415 const int *samples_per_frame = NULL;
1416 AVDictionaryEntry *t;
1417 int64_t timestamp = 0;
1418 AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1423 for (i = 0; i < s->nb_streams; i++) {
1424 AVStream *st = s->streams[i];
1425 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1427 return AVERROR(ENOMEM);
1430 if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1431 av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1435 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1437 if (fabs(av_q2d(st->codec->time_base) - 1/25.0) < 0.0001) {
1438 samples_per_frame = PAL_samples_per_frame;
1439 mxf->time_base = (AVRational){ 1, 25 };
1440 mxf->timecode_base = 25;
1441 } else if (fabs(av_q2d(st->codec->time_base) - 1/50.0) < 0.0001) {
1442 samples_per_frame = PAL_50_samples_per_frame;
1443 mxf->time_base = (AVRational){ 1, 50 };
1444 mxf->timecode_base = 50;
1445 } else if (fabs(av_q2d(st->codec->time_base) - 1001/30000.0) < 0.0001) {
1446 samples_per_frame = NTSC_samples_per_frame;
1447 mxf->time_base = (AVRational){ 1001, 30000 };
1448 mxf->timecode_base = 30;
1449 } else if (fabs(av_q2d(st->codec->time_base) - 1001/60000.0) < 0.0001) {
1450 samples_per_frame = NTSC_60_samples_per_frame;
1451 mxf->time_base = (AVRational){ 1001, 60000 };
1452 mxf->timecode_base = 60;
1454 av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n");
1457 rate = (AVRational){mxf->time_base.den, mxf->time_base.num};
1458 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1460 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1462 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1464 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1467 if (s->oformat == &ff_mxf_d10_muxer) {
1468 if (st->codec->bit_rate == 50000000)
1469 if (mxf->time_base.den == 25) sc->index = 3;
1471 else if (st->codec->bit_rate == 40000000)
1472 if (mxf->time_base.den == 25) sc->index = 7;
1474 else if (st->codec->bit_rate == 30000000)
1475 if (mxf->time_base.den == 25) sc->index = 11;
1476 else sc->index = 13;
1478 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1482 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1483 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1484 mxf->time_base.num / (8*mxf->time_base.den);
1485 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1486 mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4;
1487 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1489 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1490 if (st->codec->sample_rate != 48000) {
1491 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1494 avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1495 if (s->oformat == &ff_mxf_d10_muxer) {
1496 if (st->index != 1) {
1497 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1500 if (st->codec->codec_id != CODEC_ID_PCM_S16LE &&
1501 st->codec->codec_id != CODEC_ID_PCM_S24LE) {
1502 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1504 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1506 mxf->slice_count = 1;
1510 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1511 if (sc->index == -1) {
1512 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1513 "codec not currently supported in container\n", i);
1518 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1520 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1521 sc->track_essence_element_key[15] = present[sc->index];
1522 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1524 if (!present[sc->index])
1525 mxf->essence_container_count++;
1526 present[sc->index]++;
1529 if (s->oformat == &ff_mxf_d10_muxer) {
1530 mxf->essence_container_count = 1;
1533 if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1536 for (i = 0; i < s->nb_streams; i++) {
1537 MXFStreamContext *sc = s->streams[i]->priv_data;
1538 // update element count
1539 sc->track_essence_element_key[13] = present[sc->index];
1540 sc->order = AV_RB32(sc->track_essence_element_key+12);
1543 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1544 timestamp = ff_iso8601_to_unix_time(t->value);
1546 mxf->timestamp = mxf_parse_timestamp(timestamp);
1549 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1550 if (!mxf->timecode_track)
1551 return AVERROR(ENOMEM);
1552 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1553 if (!mxf->timecode_track->priv_data)
1554 return AVERROR(ENOMEM);
1555 mxf->timecode_track->index = -1;
1557 if (!samples_per_frame)
1558 samples_per_frame = PAL_samples_per_frame;
1560 if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0)
1566 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1567 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 };
1569 static void mxf_write_system_item(AVFormatContext *s)
1571 MXFContext *mxf = s->priv_data;
1572 AVIOContext *pb = s->pb;
1576 frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1578 // write system metadata pack
1579 avio_write(pb, system_metadata_pack_key, 16);
1580 klv_encode_ber4_length(pb, 57);
1581 avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1582 avio_w8(pb, 0x04); // content package rate
1583 avio_w8(pb, 0x00); // content package type
1584 avio_wb16(pb, 0x00); // channel handle
1585 avio_wb16(pb, mxf->tc.start + frame); // continuity count
1586 if (mxf->essence_container_count > 1)
1587 avio_write(pb, multiple_desc_ul, 16);
1589 MXFStreamContext *sc = s->streams[0]->priv_data;
1590 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1594 avio_wb64(pb, 0); // creation date/time stamp
1596 avio_w8(pb, 0x81); // SMPTE 12M time code
1597 time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1598 avio_wb32(pb, time_code);
1599 avio_wb32(pb, 0); // binary group data
1602 // write system metadata package set
1603 avio_write(pb, system_metadata_package_set_key, 16);
1604 klv_encode_ber4_length(pb, 35);
1605 avio_w8(pb, 0x83); // UMID
1606 avio_wb16(pb, 0x20);
1607 mxf_write_umid(s, 1);
1610 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1612 MXFContext *mxf = s->priv_data;
1613 AVIOContext *pb = s->pb;
1614 int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1615 (8*mxf->time_base.den); // frame size
1618 packet_size += 16 + 4;
1619 packet_size += klv_fill_size(packet_size);
1621 klv_encode_ber4_length(pb, pkt->size);
1622 avio_write(pb, pkt->data, pkt->size);
1624 // ensure CBR muxing by padding to correct video frame size
1625 pad = packet_size - pkt->size - 16 - 4;
1627 avio_write(s->pb, klv_fill_key, 16);
1629 klv_encode_ber4_length(s->pb, pad);
1632 assert(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1634 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1635 for (; pad > 0; pad--)
1640 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1642 MXFContext *mxf = s->priv_data;
1643 AVIOContext *pb = s->pb;
1644 int frame_size = pkt->size / st->codec->block_align;
1645 uint8_t *samples = pkt->data;
1646 uint8_t *end = pkt->data + pkt->size;
1649 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1651 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1652 avio_wl16(pb, frame_size);
1653 avio_w8(pb, (1<<st->codec->channels)-1);
1655 while (samples < end) {
1656 for (i = 0; i < st->codec->channels; i++) {
1658 if (st->codec->codec_id == CODEC_ID_PCM_S24LE) {
1659 sample = AV_RL24(samples)<< 4;
1662 sample = AV_RL16(samples)<<12;
1665 avio_wl32(pb, sample | i);
1672 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1674 MXFContext *mxf = s->priv_data;
1675 AVIOContext *pb = s->pb;
1676 AVStream *st = s->streams[pkt->stream_index];
1677 MXFStreamContext *sc = st->priv_data;
1678 MXFIndexEntry ie = {0};
1680 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1681 mxf->index_entries = av_realloc(mxf->index_entries,
1682 (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1683 if (!mxf->index_entries) {
1684 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1689 if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
1690 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1691 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1696 if (!mxf->header_written) {
1697 if (mxf->edit_unit_byte_count) {
1698 mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1699 mxf_write_klv_fill(s);
1700 mxf_write_index_table_segment(s);
1702 mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1704 mxf->header_written = 1;
1707 if (st->index == 0) {
1708 if (!mxf->edit_unit_byte_count &&
1709 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1710 !(ie.flags & 0x33)) { // I frame, Gop start
1711 mxf_write_klv_fill(s);
1712 mxf_write_partition(s, 1, 2, body_partition_key, 0);
1714 mxf_write_klv_fill(s);
1715 mxf_write_index_table_segment(s);
1718 mxf_write_klv_fill(s);
1719 mxf_write_system_item(s);
1721 if (!mxf->edit_unit_byte_count) {
1722 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1723 mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
1724 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
1725 mxf->body_offset += KAG_SIZE; // size of system element
1727 mxf->edit_units_count++;
1728 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1729 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1730 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1733 mxf_write_klv_fill(s);
1734 avio_write(pb, sc->track_essence_element_key, 16); // write key
1735 if (s->oformat == &ff_mxf_d10_muxer) {
1736 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1737 mxf_write_d10_video_packet(s, st, pkt);
1739 mxf_write_d10_audio_packet(s, st, pkt);
1741 klv_encode_ber4_length(pb, pkt->size); // write length
1742 avio_write(pb, pkt->data, pkt->size);
1743 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
1751 static void mxf_write_random_index_pack(AVFormatContext *s)
1753 MXFContext *mxf = s->priv_data;
1754 AVIOContext *pb = s->pb;
1755 uint64_t pos = avio_tell(pb);
1758 avio_write(pb, random_index_pack_key, 16);
1759 klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count);
1761 if (mxf->edit_unit_byte_count)
1762 avio_wb32(pb, 1); // BodySID of header partition
1765 avio_wb64(pb, 0); // offset of header partition
1767 for (i = 0; i < mxf->body_partitions_count; i++) {
1768 avio_wb32(pb, 1); // BodySID
1769 avio_wb64(pb, mxf->body_partition_offset[i]);
1772 avio_wb32(pb, 0); // BodySID of footer partition
1773 avio_wb64(pb, mxf->footer_partition_offset);
1775 avio_wb32(pb, avio_tell(pb) - pos + 4);
1778 static int mxf_write_footer(AVFormatContext *s)
1780 MXFContext *mxf = s->priv_data;
1781 AVIOContext *pb = s->pb;
1783 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1785 mxf_write_klv_fill(s);
1786 mxf->footer_partition_offset = avio_tell(pb);
1787 if (mxf->edit_unit_byte_count) { // no need to repeat index
1788 mxf_write_partition(s, 0, 0, footer_partition_key, 0);
1790 mxf_write_partition(s, 0, 2, footer_partition_key, 0);
1792 mxf_write_klv_fill(s);
1793 mxf_write_index_table_segment(s);
1796 mxf_write_klv_fill(s);
1797 mxf_write_random_index_pack(s);
1799 if (s->pb->seekable) {
1800 avio_seek(pb, 0, SEEK_SET);
1801 if (mxf->edit_unit_byte_count) {
1802 mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
1803 mxf_write_klv_fill(s);
1804 mxf_write_index_table_segment(s);
1806 mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
1812 ff_audio_interleave_close(s);
1814 av_freep(&mxf->index_entries);
1815 av_freep(&mxf->body_partition_offset);
1816 av_freep(&mxf->timecode_track->priv_data);
1817 av_freep(&mxf->timecode_track);
1824 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1826 int i, stream_count = 0;
1828 for (i = 0; i < s->nb_streams; i++)
1829 stream_count += !!s->streams[i]->last_in_packet_buffer;
1831 if (stream_count && (s->nb_streams == stream_count || flush)) {
1832 AVPacketList *pktl = s->packet_buffer;
1833 if (s->nb_streams != stream_count) {
1834 AVPacketList *last = NULL;
1835 // find last packet in edit unit
1837 if (!stream_count || pktl->pkt.stream_index == 0)
1843 // purge packet queue
1845 AVPacketList *next = pktl->next;
1847 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
1848 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
1849 av_free_packet(&pktl->pkt);
1856 s->packet_buffer = NULL;
1857 s->packet_buffer_end= NULL;
1860 pktl = s->packet_buffer;
1864 //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts);
1865 s->packet_buffer = pktl->next;
1866 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
1867 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
1868 if(!s->packet_buffer)
1869 s->packet_buffer_end= NULL;
1874 av_init_packet(out);
1879 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
1881 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
1882 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
1884 return next->dts > pkt->dts ||
1885 (next->dts == pkt->dts && sc->order < sc2->order);
1888 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1890 return ff_audio_rechunk_interleave(s, out, pkt, flush,
1891 mxf_interleave_get_packet, mxf_compare_timestamps);
1894 AVOutputFormat ff_mxf_muxer = {
1896 .long_name = NULL_IF_CONFIG_SMALL("Material eXchange Format"),
1897 .mime_type = "application/mxf",
1898 .extensions = "mxf",
1899 .priv_data_size = sizeof(MXFContext),
1900 .audio_codec = CODEC_ID_PCM_S16LE,
1901 .video_codec = CODEC_ID_MPEG2VIDEO,
1902 .write_header = mxf_write_header,
1903 .write_packet = mxf_write_packet,
1904 .write_trailer = mxf_write_footer,
1905 .flags = AVFMT_NOTIMESTAMPS,
1906 .interleave_packet = mxf_interleave,
1909 AVOutputFormat ff_mxf_d10_muxer = {
1911 .long_name = NULL_IF_CONFIG_SMALL("Material eXchange Format, D-10 Mapping"),
1912 .mime_type = "application/mxf",
1913 .priv_data_size = sizeof(MXFContext),
1914 .audio_codec = CODEC_ID_PCM_S16LE,
1915 .video_codec = CODEC_ID_MPEG2VIDEO,
1916 .write_header = mxf_write_header,
1917 .write_packet = mxf_write_packet,
1918 .write_trailer = mxf_write_footer,
1919 .flags = AVFMT_NOTIMESTAMPS,
1920 .interleave_packet = mxf_interleave,