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 422M Mapping JPEG 2000 Codestreams into the MXF Generic Container
30 * SMPTE RP210: SMPTE Metadata Dictionary
31 * 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 "libavutil/avassert.h"
42 #include "libavcodec/bytestream.h"
43 #include "libavcodec/dnxhddata.h"
44 #include "audiointerleave.h"
46 #include "avio_internal.h"
51 extern AVOutputFormat ff_mxf_d10_muxer;
53 #define EDIT_UNITS_PER_BODY 250
64 unsigned slice_offset; ///< offset of audio slice
65 uint16_t temporal_ref;
69 AudioInterleaveContext aic;
70 UID track_essence_element_key;
71 int index; ///< index in mxf_essence_container_uls table
73 int order; ///< interleaving order if dts are equal
74 int interlaced; ///< whether picture is interlaced
75 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
87 void (*write_desc)(AVFormatContext *, AVStream *);
88 } MXFContainerEssenceEntry;
93 } mxf_essence_mappings[] = {
94 { AV_CODEC_ID_MPEG2VIDEO, 0 },
95 { AV_CODEC_ID_PCM_S24LE, 1 },
96 { AV_CODEC_ID_PCM_S16LE, 1 },
97 { AV_CODEC_ID_DVVIDEO, 15 },
98 { AV_CODEC_ID_DNXHD, 24 },
99 { AV_CODEC_ID_JPEG2000, 34 },
103 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
104 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
105 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
106 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
107 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
109 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
110 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
111 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
112 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
113 mxf_write_mpegvideo_desc },
114 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
115 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
116 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
117 mxf_write_aes3_desc },
118 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
119 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
120 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
121 mxf_write_wav_desc },
122 // D-10 625/50 PAL 50mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
125 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
126 mxf_write_cdci_desc },
127 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
128 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
129 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
130 mxf_write_generic_sound_desc },
131 // D-10 525/60 NTSC 50mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
134 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
135 mxf_write_cdci_desc },
136 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
137 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
138 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
139 mxf_write_generic_sound_desc },
140 // D-10 625/50 PAL 40mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
143 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
144 mxf_write_cdci_desc },
145 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
146 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
147 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
148 mxf_write_generic_sound_desc },
149 // D-10 525/60 NTSC 40mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
152 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
153 mxf_write_cdci_desc },
154 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
155 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
156 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
157 mxf_write_generic_sound_desc },
158 // D-10 625/50 PAL 30mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
161 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
162 mxf_write_cdci_desc },
163 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
164 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
165 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
166 mxf_write_generic_sound_desc },
167 // D-10 525/60 NTSC 30mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
170 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
171 mxf_write_cdci_desc },
172 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
173 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
174 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
175 mxf_write_generic_sound_desc },
177 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
178 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
179 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
180 mxf_write_cdci_desc },
182 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
183 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
184 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
185 mxf_write_cdci_desc },
187 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
188 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
189 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
190 mxf_write_cdci_desc },
192 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
193 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
194 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
195 mxf_write_cdci_desc },
197 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
198 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
199 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
200 mxf_write_cdci_desc },
202 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
203 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
204 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
205 mxf_write_cdci_desc },
207 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
208 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
209 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
210 mxf_write_cdci_desc },
212 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
213 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
214 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
215 mxf_write_cdci_desc },
217 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
218 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
219 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
220 mxf_write_cdci_desc },
221 // DNxHD 1080p 10bit high
222 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
223 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
224 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
225 mxf_write_cdci_desc },
226 // DNxHD 1080p 8bit medium
227 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
228 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
229 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
230 mxf_write_cdci_desc },
231 // DNxHD 1080p 8bit high
232 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
233 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
234 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
235 mxf_write_cdci_desc },
236 // DNxHD 1080i 10bit high
237 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
238 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
239 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
240 mxf_write_cdci_desc },
241 // DNxHD 1080i 8bit medium
242 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
243 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
244 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
245 mxf_write_cdci_desc },
246 // DNxHD 1080i 8bit high
247 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
248 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
249 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
250 mxf_write_cdci_desc },
252 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
253 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
254 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
255 mxf_write_cdci_desc },
256 // DNxHD 720p 8bit high
257 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
258 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
259 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
260 mxf_write_cdci_desc },
261 // DNxHD 720p 8bit medium
262 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
263 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
264 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
265 mxf_write_cdci_desc },
266 // DNxHD 720p 8bit low
267 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
268 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
269 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
270 mxf_write_cdci_desc },
272 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0c,0x01,0x00 },
273 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x08,0x00 },
274 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 },
275 mxf_write_cdci_desc },
276 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
277 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
278 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
282 typedef struct MXFContext {
284 int64_t footer_partition_offset;
285 int essence_container_count;
286 AVRational time_base;
288 MXFIndexEntry *index_entries;
289 unsigned edit_units_count;
290 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
291 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
292 int last_indexed_edit_unit;
293 uint64_t *body_partition_offset;
294 unsigned body_partitions_count;
295 int last_key_index; ///< index of last key frame
297 AVTimecode tc; ///< timecode context
298 AVStream *timecode_track;
299 int timecode_base; ///< rounded time code base (25 or 30)
300 int edit_unit_byte_count; ///< fixed edit unit byte count
301 uint64_t body_offset;
302 uint32_t instance_number;
303 uint8_t umid[16]; ///< unique material identifier
307 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
308 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
311 * complete key for operation pattern, partitions, and primer pack
313 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
314 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
315 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
316 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
317 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
318 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
319 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
320 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
321 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
324 * partial key for header metadata
326 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
327 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
330 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
332 static const MXFLocalTagPair mxf_local_tag_batch[] = {
334 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
335 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
336 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
337 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
338 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
339 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
340 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
341 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
343 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
344 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
345 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
346 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
347 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
348 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
350 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
351 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
352 // Essence Container Data
353 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
354 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
356 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
357 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
358 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
359 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
360 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
362 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
363 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
364 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
365 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
366 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
368 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
369 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
370 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
372 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
373 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
374 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
375 // Timecode Component
376 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
377 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
378 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
380 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
381 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
382 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
383 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
384 // Generic Picture Essence Descriptor
385 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
386 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
387 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
388 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
389 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
390 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
391 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
392 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
393 { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
394 // CDCI Picture Essence Descriptor
395 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
396 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
397 // Generic Sound Essence Descriptor
398 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
399 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
400 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
401 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
402 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
403 // Index Table Segment
404 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
405 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
406 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
407 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
408 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
409 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
410 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
411 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
412 // MPEG video Descriptor
413 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
414 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
415 // Wave Audio Essence Descriptor
416 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
417 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
420 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
422 avio_write(pb, uuid_base, 12);
424 avio_wb16(pb, value);
427 static void mxf_write_umid(AVFormatContext *s, int type)
429 MXFContext *mxf = s->priv_data;
430 avio_write(s->pb, umid_ul, 13);
431 avio_wb24(s->pb, mxf->instance_number);
432 avio_write(s->pb, mxf->umid, 15);
433 avio_w8(s->pb, type);
436 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
438 avio_wb32(pb, ref_count);
442 static int klv_ber_length(uint64_t len)
447 return (av_log2(len) >> 3) + 2;
450 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
452 // Determine the best BER size
460 size = (av_log2(len) >> 3) + 1;
463 avio_w8(pb, 0x80 + size);
466 avio_w8(pb, len >> 8 * size & 0xff);
471 static void klv_encode_ber4_length(AVIOContext *pb, int len)
473 avio_w8(pb, 0x80 + 3);
478 * Get essence container ul index
480 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
483 for (i = 0; mxf_essence_mappings[i].id; i++)
484 if (mxf_essence_mappings[i].id == id)
485 return mxf_essence_mappings[i].index;
489 static void mxf_write_primer_pack(AVFormatContext *s)
491 AVIOContext *pb = s->pb;
492 int local_tag_number, i = 0;
494 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
496 avio_write(pb, primer_pack_key, 16);
497 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
499 avio_wb32(pb, local_tag_number); // local_tag num
500 avio_wb32(pb, 18); // item size, always 18 according to the specs
502 for (i = 0; i < local_tag_number; i++) {
503 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
504 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
508 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
514 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
516 avio_write(pb, header_metadata_key, 13);
517 avio_wb24(pb, value);
520 static void mxf_free(AVFormatContext *s)
524 for (i = 0; i < s->nb_streams; i++) {
525 AVStream *st = s->streams[i];
526 av_freep(&st->priv_data);
530 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
532 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
533 while (uls->uid[0]) {
541 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
542 #define DESCRIPTOR_COUNT(essence_container_count) \
543 (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
545 static void mxf_write_essence_container_refs(AVFormatContext *s)
547 MXFContext *c = s->priv_data;
548 AVIOContext *pb = s->pb;
551 mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
552 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
553 for (i = 0; i < c->essence_container_count; i++) {
554 MXFStreamContext *sc = s->streams[i]->priv_data;
555 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
558 if (c->essence_container_count > 1)
559 avio_write(pb, multiple_desc_ul, 16);
562 static void mxf_write_preface(AVFormatContext *s)
564 MXFContext *mxf = s->priv_data;
565 AVIOContext *pb = s->pb;
567 mxf_write_metadata_key(pb, 0x012f00);
568 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
569 klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
571 // write preface set uid
572 mxf_write_local_tag(pb, 16, 0x3C0A);
573 mxf_write_uuid(pb, Preface, 0);
574 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
576 // last modified date
577 mxf_write_local_tag(pb, 8, 0x3B02);
578 avio_wb64(pb, mxf->timestamp);
581 mxf_write_local_tag(pb, 2, 0x3B05);
582 avio_wb16(pb, 258); // v1.2
584 // write identification_refs
585 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
586 mxf_write_refs_count(pb, 1);
587 mxf_write_uuid(pb, Identification, 0);
589 // write content_storage_refs
590 mxf_write_local_tag(pb, 16, 0x3B03);
591 mxf_write_uuid(pb, ContentStorage, 0);
593 // operational pattern
594 mxf_write_local_tag(pb, 16, 0x3B09);
595 avio_write(pb, op1a_ul, 16);
597 // write essence_container_refs
598 mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
599 mxf_write_essence_container_refs(s);
601 // write dm_scheme_refs
602 mxf_write_local_tag(pb, 8, 0x3B0B);
607 * Write a local tag containing an ascii string as utf-16
609 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
611 int i, size = strlen(value);
612 mxf_write_local_tag(pb, size*2, tag);
613 for (i = 0; i < size; i++)
614 avio_wb16(pb, value[i]);
617 static void mxf_write_identification(AVFormatContext *s)
619 MXFContext *mxf = s->priv_data;
620 AVIOContext *pb = s->pb;
621 const char *company = "FFmpeg";
622 const char *product = "OP1a Muxer";
626 mxf_write_metadata_key(pb, 0x013000);
627 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
629 version = s->flags & AVFMT_FLAG_BITEXACT ?
630 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
631 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
632 klv_encode_ber_length(pb, length);
635 mxf_write_local_tag(pb, 16, 0x3C0A);
636 mxf_write_uuid(pb, Identification, 0);
637 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
639 // write generation uid
640 mxf_write_local_tag(pb, 16, 0x3C09);
641 mxf_write_uuid(pb, Identification, 1);
643 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
644 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
645 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
648 mxf_write_local_tag(pb, 16, 0x3C05);
649 mxf_write_uuid(pb, Identification, 2);
652 mxf_write_local_tag(pb, 8, 0x3C06);
653 avio_wb64(pb, mxf->timestamp);
656 static void mxf_write_content_storage(AVFormatContext *s)
658 AVIOContext *pb = s->pb;
660 mxf_write_metadata_key(pb, 0x011800);
661 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
662 klv_encode_ber_length(pb, 92);
665 mxf_write_local_tag(pb, 16, 0x3C0A);
666 mxf_write_uuid(pb, ContentStorage, 0);
667 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
669 // write package reference
670 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
671 mxf_write_refs_count(pb, 2);
672 mxf_write_uuid(pb, MaterialPackage, 0);
673 mxf_write_uuid(pb, SourcePackage, 0);
675 // write essence container data
676 mxf_write_local_tag(pb, 8 + 16, 0x1902);
677 mxf_write_refs_count(pb, 1);
678 mxf_write_uuid(pb, EssenceContainerData, 0);
681 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
683 MXFContext *mxf = s->priv_data;
684 AVIOContext *pb = s->pb;
685 MXFStreamContext *sc = st->priv_data;
687 mxf_write_metadata_key(pb, 0x013b00);
688 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
689 klv_encode_ber_length(pb, 80);
692 mxf_write_local_tag(pb, 16, 0x3C0A);
693 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
694 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
697 mxf_write_local_tag(pb, 4, 0x4801);
698 avio_wb32(pb, st->index+2);
700 // write track number
701 mxf_write_local_tag(pb, 4, 0x4804);
702 if (type == MaterialPackage)
703 avio_wb32(pb, 0); // track number of material package is 0
705 avio_write(pb, sc->track_essence_element_key + 12, 4);
707 mxf_write_local_tag(pb, 8, 0x4B01);
708 avio_wb32(pb, mxf->time_base.den);
709 avio_wb32(pb, mxf->time_base.num);
712 mxf_write_local_tag(pb, 8, 0x4B02);
715 // write sequence refs
716 mxf_write_local_tag(pb, 16, 0x4803);
717 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
720 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 };
722 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
724 MXFContext *mxf = s->priv_data;
725 AVIOContext *pb = s->pb;
727 // find data define uls
728 mxf_write_local_tag(pb, 16, 0x0201);
729 if (st == mxf->timecode_track)
730 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
732 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
733 avio_write(pb, data_def_ul->uid, 16);
737 mxf_write_local_tag(pb, 8, 0x0202);
738 avio_wb64(pb, mxf->duration);
741 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
743 MXFContext *mxf = s->priv_data;
744 AVIOContext *pb = s->pb;
745 enum MXFMetadataSetType component;
747 mxf_write_metadata_key(pb, 0x010f00);
748 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
749 klv_encode_ber_length(pb, 80);
751 mxf_write_local_tag(pb, 16, 0x3C0A);
752 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
754 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
755 mxf_write_common_fields(s, st);
757 // write structural component
758 mxf_write_local_tag(pb, 16 + 8, 0x1001);
759 mxf_write_refs_count(pb, 1);
760 if (st == mxf->timecode_track)
761 component = TimecodeComponent;
763 component = SourceClip;
764 if (type == SourcePackage)
765 component += TypeBottom;
766 mxf_write_uuid(pb, component, st->index);
769 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
771 MXFContext *mxf = s->priv_data;
772 AVIOContext *pb = s->pb;
774 mxf_write_metadata_key(pb, 0x011400);
775 klv_encode_ber_length(pb, 75);
778 mxf_write_local_tag(pb, 16, 0x3C0A);
779 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
780 TimecodeComponent + TypeBottom, st->index);
782 mxf_write_common_fields(s, st);
785 mxf_write_local_tag(pb, 8, 0x1501);
786 avio_wb64(pb, mxf->tc.start);
788 // Rounded Time Code Base
789 mxf_write_local_tag(pb, 2, 0x1502);
790 avio_wb16(pb, mxf->timecode_base);
793 mxf_write_local_tag(pb, 1, 0x1503);
794 avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
797 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
799 AVIOContext *pb = s->pb;
802 mxf_write_metadata_key(pb, 0x011100);
803 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
804 klv_encode_ber_length(pb, 108);
807 mxf_write_local_tag(pb, 16, 0x3C0A);
808 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
810 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
811 mxf_write_common_fields(s, st);
813 // write start_position
814 mxf_write_local_tag(pb, 8, 0x1201);
817 // write source package uid, end of the reference
818 mxf_write_local_tag(pb, 32, 0x1101);
819 if (type == SourcePackage) {
820 for (i = 0; i < 4; i++)
823 mxf_write_umid(s, 1);
825 // write source track id
826 mxf_write_local_tag(pb, 4, 0x1102);
827 if (type == SourcePackage)
830 avio_wb32(pb, st->index+2);
833 static void mxf_write_multi_descriptor(AVFormatContext *s)
835 MXFContext *mxf = s->priv_data;
836 AVIOContext *pb = s->pb;
840 mxf_write_metadata_key(pb, 0x014400);
841 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
842 klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
844 mxf_write_local_tag(pb, 16, 0x3C0A);
845 mxf_write_uuid(pb, MultipleDescriptor, 0);
846 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
849 mxf_write_local_tag(pb, 8, 0x3001);
850 avio_wb32(pb, mxf->time_base.den);
851 avio_wb32(pb, mxf->time_base.num);
853 // write essence container ul
854 mxf_write_local_tag(pb, 16, 0x3004);
855 if (mxf->essence_container_count > 1)
856 ul = multiple_desc_ul;
858 MXFStreamContext *sc = s->streams[0]->priv_data;
859 ul = mxf_essence_container_uls[sc->index].container_ul;
861 avio_write(pb, ul, 16);
863 // write sub descriptor refs
864 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
865 mxf_write_refs_count(pb, s->nb_streams);
866 for (i = 0; i < s->nb_streams; i++)
867 mxf_write_uuid(pb, SubDescriptor, i);
870 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
872 MXFContext *mxf = s->priv_data;
873 MXFStreamContext *sc = st->priv_data;
874 AVIOContext *pb = s->pb;
876 avio_write(pb, key, 16);
877 klv_encode_ber4_length(pb, size+20+8+12+20);
879 mxf_write_local_tag(pb, 16, 0x3C0A);
880 mxf_write_uuid(pb, SubDescriptor, st->index);
882 mxf_write_local_tag(pb, 4, 0x3006);
883 avio_wb32(pb, st->index+2);
885 mxf_write_local_tag(pb, 8, 0x3001);
886 avio_wb32(pb, mxf->time_base.den);
887 avio_wb32(pb, mxf->time_base.num);
889 mxf_write_local_tag(pb, 16, 0x3004);
890 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
893 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
894 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
895 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
896 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
897 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
899 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
901 MXFStreamContext *sc = st->priv_data;
902 AVIOContext *pb = s->pb;
903 int stored_height = (st->codec->height+15)/16*16;
906 unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
907 if (sc->interlaced && sc->field_dominance)
910 mxf_write_generic_desc(s, st, key, desc_size);
912 mxf_write_local_tag(pb, 4, 0x3203);
913 avio_wb32(pb, st->codec->width);
915 mxf_write_local_tag(pb, 4, 0x3202);
916 avio_wb32(pb, stored_height>>sc->interlaced);
918 mxf_write_local_tag(pb, 4, 0x3209);
919 avio_wb32(pb, st->codec->width);
921 if (st->codec->height == 608) // PAL + VBI
922 display_height = 576;
923 else if (st->codec->height == 512) // NTSC + VBI
924 display_height = 486;
926 display_height = st->codec->height;
928 mxf_write_local_tag(pb, 4, 0x3208);
929 avio_wb32(pb, display_height>>sc->interlaced);
932 mxf_write_local_tag(pb, 4, 0x3301);
933 avio_wb32(pb, sc->component_depth);
935 // horizontal subsampling
936 mxf_write_local_tag(pb, 4, 0x3302);
940 mxf_write_local_tag(pb, 1, 0x320C);
941 avio_w8(pb, sc->interlaced);
944 switch (st->codec->height) {
945 case 576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
946 case 608: f1 = 7; f2 = 320; break;
947 case 480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
948 case 512: f1 = 7; f2 = 270; break;
949 case 720: f1 = 26; f2 = 0; break; // progressive
950 case 1080: f1 = 21; f2 = 584; break;
951 default: f1 = 0; f2 = 0; break;
954 if (!sc->interlaced) {
959 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
960 avio_wb32(pb, sc->interlaced ? 2 : 1);
966 mxf_write_local_tag(pb, 8, 0x320E);
967 avio_wb32(pb, sc->aspect_ratio.num);
968 avio_wb32(pb, sc->aspect_ratio.den);
970 mxf_write_local_tag(pb, 16, 0x3201);
971 avio_write(pb, *sc->codec_ul, 16);
973 if (sc->interlaced && sc->field_dominance) {
974 mxf_write_local_tag(pb, 1, 0x3212);
975 avio_w8(pb, sc->field_dominance);
980 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
982 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
985 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
987 AVIOContext *pb = s->pb;
988 MXFStreamContext *sc = st->priv_data;
989 int profile_and_level = (st->codec->profile<<4) | st->codec->level;
991 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
994 mxf_write_local_tag(pb, 4, 0x8000);
995 avio_wb32(pb, sc->video_bit_rate);
998 mxf_write_local_tag(pb, 1, 0x8007);
999 if (!st->codec->profile)
1000 profile_and_level |= 0x80; // escape bit
1001 avio_w8(pb, profile_and_level);
1004 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1006 AVIOContext *pb = s->pb;
1007 MXFContext *mxf = s->priv_data;
1008 int show_warnings = !mxf->footer_partition_offset;
1010 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
1013 mxf_write_local_tag(pb, 1, 0x3D02);
1016 // write audio sampling rate
1017 mxf_write_local_tag(pb, 8, 0x3D03);
1018 avio_wb32(pb, st->codec->sample_rate);
1021 mxf_write_local_tag(pb, 4, 0x3D07);
1022 if (mxf->channel_count == -1) {
1023 if (show_warnings && (s->oformat == &ff_mxf_d10_muxer) && (st->codec->channels != 4) && (st->codec->channels != 8))
1024 av_log(s, AV_LOG_WARNING, "the number of audio channels shall be 4 or 8 : the output will not comply to MXF D-10 specs, use -d10_channelcount to fix this\n");
1025 avio_wb32(pb, st->codec->channels);
1026 } else if (s->oformat == &ff_mxf_d10_muxer) {
1027 if (show_warnings && (mxf->channel_count < st->codec->channels))
1028 av_log(s, AV_LOG_WARNING, "d10_channelcount < actual number of audio channels : some channels will be discarded\n");
1029 if (show_warnings && (mxf->channel_count != 4) && (mxf->channel_count != 8))
1030 av_log(s, AV_LOG_WARNING, "d10_channelcount shall be set to 4 or 8 : the output will not comply to MXF D-10 specs\n");
1031 avio_wb32(pb, mxf->channel_count);
1033 if (show_warnings && mxf->channel_count != -1)
1034 av_log(s, AV_LOG_ERROR, "-d10_channelcount requires MXF D-10 and will be ignored\n");
1035 avio_wb32(pb, st->codec->channels);
1038 mxf_write_local_tag(pb, 4, 0x3D01);
1039 avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1042 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1044 AVIOContext *pb = s->pb;
1046 mxf_write_generic_sound_common(s, st, key, size+6+8);
1048 mxf_write_local_tag(pb, 2, 0x3D0A);
1049 avio_wb16(pb, st->codec->block_align);
1051 // avg bytes per sec
1052 mxf_write_local_tag(pb, 4, 0x3D09);
1053 avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1056 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1058 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1061 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1063 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1066 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1068 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1071 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
1073 MXFContext *mxf = s->priv_data;
1074 AVIOContext *pb = s->pb;
1075 int i, track_count = s->nb_streams+1;
1077 if (type == MaterialPackage) {
1078 mxf_write_metadata_key(pb, 0x013600);
1079 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1080 klv_encode_ber_length(pb, 92 + 16*track_count);
1082 mxf_write_metadata_key(pb, 0x013700);
1083 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1084 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1088 mxf_write_local_tag(pb, 16, 0x3C0A);
1089 mxf_write_uuid(pb, type, 0);
1090 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1091 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1093 // write package umid
1094 mxf_write_local_tag(pb, 32, 0x4401);
1095 mxf_write_umid(s, type == SourcePackage);
1096 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1098 // package creation date
1099 mxf_write_local_tag(pb, 8, 0x4405);
1100 avio_wb64(pb, mxf->timestamp);
1102 // package modified date
1103 mxf_write_local_tag(pb, 8, 0x4404);
1104 avio_wb64(pb, mxf->timestamp);
1107 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1108 mxf_write_refs_count(pb, track_count);
1109 mxf_write_uuid(pb, type == MaterialPackage ? Track :
1110 Track + TypeBottom, -1); // timecode track
1111 for (i = 0; i < s->nb_streams; i++)
1112 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1114 // write multiple descriptor reference
1115 if (type == SourcePackage) {
1116 mxf_write_local_tag(pb, 16, 0x4701);
1117 if (s->nb_streams > 1) {
1118 mxf_write_uuid(pb, MultipleDescriptor, 0);
1119 mxf_write_multi_descriptor(s);
1121 mxf_write_uuid(pb, SubDescriptor, 0);
1124 // write timecode track
1125 mxf_write_track(s, mxf->timecode_track, type);
1126 mxf_write_sequence(s, mxf->timecode_track, type);
1127 mxf_write_timecode_component(s, mxf->timecode_track, type);
1129 for (i = 0; i < s->nb_streams; i++) {
1130 AVStream *st = s->streams[i];
1131 mxf_write_track(s, st, type);
1132 mxf_write_sequence(s, st, type);
1133 mxf_write_structural_component(s, st, type);
1135 if (type == SourcePackage) {
1136 MXFStreamContext *sc = st->priv_data;
1137 mxf_essence_container_uls[sc->index].write_desc(s, st);
1142 static int mxf_write_essence_container_data(AVFormatContext *s)
1144 AVIOContext *pb = s->pb;
1146 mxf_write_metadata_key(pb, 0x012300);
1147 klv_encode_ber_length(pb, 72);
1149 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1150 mxf_write_uuid(pb, EssenceContainerData, 0);
1152 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1153 mxf_write_umid(s, 1);
1155 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1158 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1164 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1166 mxf_write_preface(s);
1167 mxf_write_identification(s);
1168 mxf_write_content_storage(s);
1169 mxf_write_package(s, MaterialPackage);
1170 mxf_write_package(s, SourcePackage);
1171 mxf_write_essence_container_data(s);
1175 static unsigned klv_fill_size(uint64_t size)
1177 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1178 if (pad < 20) // smallest fill item possible
1179 return pad + KAG_SIZE;
1181 return pad & (KAG_SIZE-1);
1184 static void mxf_write_index_table_segment(AVFormatContext *s)
1186 MXFContext *mxf = s->priv_data;
1187 AVIOContext *pb = s->pb;
1188 int i, j, temporal_reordering = 0;
1189 int key_index = mxf->last_key_index;
1191 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1193 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1196 avio_write(pb, index_table_segment_key, 16);
1198 if (mxf->edit_unit_byte_count) {
1199 klv_encode_ber_length(pb, 80);
1201 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1202 12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1206 mxf_write_local_tag(pb, 16, 0x3C0A);
1207 mxf_write_uuid(pb, IndexTableSegment, 0);
1210 mxf_write_local_tag(pb, 8, 0x3F0B);
1211 avio_wb32(pb, mxf->time_base.den);
1212 avio_wb32(pb, mxf->time_base.num);
1214 // index start position
1215 mxf_write_local_tag(pb, 8, 0x3F0C);
1216 avio_wb64(pb, mxf->last_indexed_edit_unit);
1219 mxf_write_local_tag(pb, 8, 0x3F0D);
1220 if (mxf->edit_unit_byte_count)
1221 avio_wb64(pb, 0); // index table covers whole container
1223 avio_wb64(pb, mxf->edit_units_count);
1225 // edit unit byte count
1226 mxf_write_local_tag(pb, 4, 0x3F05);
1227 avio_wb32(pb, mxf->edit_unit_byte_count);
1230 mxf_write_local_tag(pb, 4, 0x3F06);
1234 mxf_write_local_tag(pb, 4, 0x3F07);
1237 if (!mxf->edit_unit_byte_count) {
1238 // real slice count - 1
1239 mxf_write_local_tag(pb, 1, 0x3F08);
1240 avio_w8(pb, mxf->slice_count);
1242 // delta entry array
1243 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1244 avio_wb32(pb, s->nb_streams+1); // num of entries
1245 avio_wb32(pb, 6); // size of one entry
1246 // write system item delta entry
1248 avio_w8(pb, 0); // slice entry
1249 avio_wb32(pb, 0); // element delta
1250 for (i = 0; i < s->nb_streams; i++) {
1251 AVStream *st = s->streams[i];
1252 MXFStreamContext *sc = st->priv_data;
1253 avio_w8(pb, sc->temporal_reordering);
1254 if (sc->temporal_reordering)
1255 temporal_reordering = 1;
1256 if (i == 0) { // video track
1257 avio_w8(pb, 0); // slice number
1258 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1259 } else { // audio track
1260 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1261 audio_frame_size += klv_fill_size(audio_frame_size);
1263 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1267 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1268 avio_wb32(pb, mxf->edit_units_count); // num of entries
1269 avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1271 for (i = 0; i < mxf->edit_units_count; i++) {
1272 int temporal_offset = 0;
1274 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1275 mxf->last_key_index = key_index;
1279 if (temporal_reordering) {
1280 int pic_num_in_gop = i - key_index;
1281 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1282 for (j = key_index; j < mxf->edit_units_count; j++) {
1283 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1286 if (j == mxf->edit_units_count)
1287 av_log(s, AV_LOG_WARNING, "missing frames\n");
1288 temporal_offset = j - key_index - pic_num_in_gop;
1291 avio_w8(pb, temporal_offset);
1293 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1294 avio_w8(pb, mxf->last_key_index - i);
1296 avio_w8(pb, key_index - i); // key frame offset
1297 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1298 mxf->last_key_index = key_index;
1301 if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1302 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1303 mxf->index_entries[i].flags |= 0x80; // random access
1304 avio_w8(pb, mxf->index_entries[i].flags);
1306 avio_wb64(pb, mxf->index_entries[i].offset);
1307 if (s->nb_streams > 1)
1308 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1311 mxf->last_key_index = key_index - mxf->edit_units_count;
1312 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1313 mxf->edit_units_count = 0;
1317 static void mxf_write_klv_fill(AVFormatContext *s)
1319 unsigned pad = klv_fill_size(avio_tell(s->pb));
1321 avio_write(s->pb, klv_fill_key, 16);
1323 klv_encode_ber4_length(s->pb, pad);
1324 ffio_fill(s->pb, 0, pad);
1325 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1329 static int mxf_write_partition(AVFormatContext *s, int bodysid,
1331 const uint8_t *key, int write_metadata)
1333 MXFContext *mxf = s->priv_data;
1334 AVIOContext *pb = s->pb;
1335 int64_t header_byte_count_offset;
1336 unsigned index_byte_count = 0;
1337 uint64_t partition_offset = avio_tell(pb);
1340 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1341 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1342 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1343 else if (mxf->edit_unit_byte_count && indexsid)
1344 index_byte_count = 80;
1346 if (index_byte_count) {
1347 // add encoded ber length
1348 index_byte_count += 16 + klv_ber_length(index_byte_count);
1349 index_byte_count += klv_fill_size(index_byte_count);
1352 if (!memcmp(key, body_partition_key, 16)) {
1353 if ((err = av_reallocp_array(&mxf->body_partition_offset, mxf->body_partitions_count + 1,
1354 sizeof(*mxf->body_partition_offset))) < 0) {
1355 mxf->body_partitions_count = 0;
1358 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1362 avio_write(pb, key, 16);
1363 klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1365 // write partition value
1366 avio_wb16(pb, 1); // majorVersion
1367 avio_wb16(pb, 2); // minorVersion
1368 avio_wb32(pb, KAG_SIZE); // KAGSize
1370 avio_wb64(pb, partition_offset); // ThisPartition
1372 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1373 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1374 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1375 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1379 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1382 header_byte_count_offset = avio_tell(pb);
1383 avio_wb64(pb, 0); // headerByteCount, update later
1386 avio_wb64(pb, index_byte_count); // indexByteCount
1387 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1390 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1391 avio_wb64(pb, mxf->body_offset);
1395 avio_wb32(pb, bodysid); // bodySID
1397 // operational pattern
1398 avio_write(pb, op1a_ul, 16);
1400 // essence container
1401 mxf_write_essence_container_refs(s);
1403 if (write_metadata) {
1404 // mark the start of the headermetadata and calculate metadata size
1406 unsigned header_byte_count;
1408 mxf_write_klv_fill(s);
1409 start = avio_tell(s->pb);
1410 mxf_write_primer_pack(s);
1411 mxf_write_header_metadata_sets(s);
1412 pos = avio_tell(s->pb);
1413 header_byte_count = pos - start + klv_fill_size(pos);
1415 // update header_byte_count
1416 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1417 avio_wb64(pb, header_byte_count);
1418 avio_seek(pb, pos, SEEK_SET);
1426 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1429 MXFContext *mxf = s->priv_data;
1430 MXFStreamContext *sc = st->priv_data;
1432 uint8_t* header_cid;
1435 if (mxf->header_written)
1441 header_cid = pkt->data + 0x28;
1442 cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1444 if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
1450 sc->component_depth = 10;
1460 sc->component_depth = 10;
1470 sc->component_depth = 10;
1485 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1486 sc->aspect_ratio = (AVRational){ 16, 9 };
1488 mxf->edit_unit_byte_count = KAG_SIZE;
1489 for (i = 0; i < s->nb_streams; i++) {
1490 AVStream *st = s->streams[i];
1491 MXFStreamContext *sc = st->priv_data;
1492 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1493 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1494 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1495 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1496 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1497 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1504 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1506 MXFContext *mxf = s->priv_data;
1507 MXFStreamContext *sc = st->priv_data;
1508 uint8_t *vs_pack, *vsc_pack;
1509 int i, ul_index, frame_size, stype, pal;
1511 if (mxf->header_written)
1514 // Check for minimal frame size
1515 if (pkt->size < 120000)
1518 vs_pack = pkt->data + 80*5 + 48;
1519 vsc_pack = pkt->data + 80*5 + 53;
1520 stype = vs_pack[3] & 0x1f;
1521 pal = (vs_pack[3] >> 5) & 0x1;
1523 if ((vs_pack[2] & 0x07) == 0x02)
1524 sc->aspect_ratio = (AVRational){ 16, 9 };
1526 sc->aspect_ratio = (AVRational){ 4, 3 };
1528 sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1529 // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1530 // and set field dominance accordingly
1531 // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1534 case 0x18: // DV100 720p
1536 frame_size = pal ? 288000 : 240000;
1537 if (sc->interlaced) {
1538 av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1542 case 0x14: // DV100 1080i
1544 frame_size = pal ? 576000 : 480000;
1548 frame_size = pal ? 288000 : 240000;
1552 frame_size = pal ? 144000 : 120000;
1555 sc->index = ul_index + 16;
1556 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1558 mxf->edit_unit_byte_count = KAG_SIZE;
1559 for (i = 0; i < s->nb_streams; i++) {
1560 AVStream *st = s->streams[i];
1561 MXFStreamContext *sc = st->priv_data;
1562 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1563 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1564 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1565 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1566 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1567 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1574 static const UID mxf_mpeg2_codec_uls[] = {
1575 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1576 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1577 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1578 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1579 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1580 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1581 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1582 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1583 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1584 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1587 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1589 int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1591 if (avctx->profile == 4) { // Main
1592 if (avctx->level == 8) // Main
1593 return &mxf_mpeg2_codec_uls[0+long_gop];
1594 else if (avctx->level == 4) // High
1595 return &mxf_mpeg2_codec_uls[4+long_gop];
1596 else if (avctx->level == 6) // High 14
1597 return &mxf_mpeg2_codec_uls[8+long_gop];
1598 } else if (avctx->profile == 0) { // 422
1599 if (avctx->level == 5) // Main
1600 return &mxf_mpeg2_codec_uls[2+long_gop];
1601 else if (avctx->level == 2) // High
1602 return &mxf_mpeg2_codec_uls[6+long_gop];
1607 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1608 AVPacket *pkt, MXFIndexEntry *e)
1610 MXFStreamContext *sc = st->priv_data;
1614 for(i = 0; i < pkt->size - 4; i++) {
1615 c = (c<<8) + pkt->data[i];
1617 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1618 st->codec->profile = pkt->data[i+1] & 0x07;
1619 st->codec->level = pkt->data[i+2] >> 4;
1620 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1621 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1623 sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1626 } else if (c == 0x1b8) { // gop
1627 if (pkt->data[i+4]>>6 & 0x01) { // closed
1629 if (e->flags & 0x40) // sequence header present
1630 e->flags |= 0x80; // random access
1632 } else if (c == 0x1b3) { // seq
1634 switch ((pkt->data[i+4]>>4) & 0xf) {
1635 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1636 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1637 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1639 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1640 st->codec->width, st->codec->height, 1024*1024);
1642 } else if (c == 0x100) { // pic
1643 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1644 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1645 if (pict_type == 2) { // P frame
1647 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1648 } else if (pict_type == 3) { // B frame
1650 e->flags |= 0x13; // only backward prediction
1653 sc->temporal_reordering = -1;
1654 } else if (!pict_type) {
1655 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1660 if (s->oformat != &ff_mxf_d10_muxer)
1661 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1662 return !!sc->codec_ul;
1665 static uint64_t mxf_parse_timestamp(time_t timestamp)
1667 struct tm *time = gmtime(×tamp);
1670 return (uint64_t)(time->tm_year+1900) << 48 |
1671 (uint64_t)(time->tm_mon+1) << 40 |
1672 (uint64_t) time->tm_mday << 32 |
1673 time->tm_hour << 24 |
1674 time->tm_min << 16 |
1678 static void mxf_gen_umid(AVFormatContext *s)
1680 MXFContext *mxf = s->priv_data;
1681 uint32_t seed = av_get_random_seed();
1682 uint64_t umid = seed + 0x5294713400000000LL;
1684 AV_WB64(mxf->umid , umid);
1685 AV_WB64(mxf->umid+8, umid>>8);
1687 mxf->instance_number = seed & 0xFFFFFF;
1690 static int mxf_write_header(AVFormatContext *s)
1692 MXFContext *mxf = s->priv_data;
1694 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1695 const MXFSamplesPerFrame *spf = NULL;
1696 AVDictionaryEntry *t;
1697 int64_t timestamp = 0;
1698 AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1703 for (i = 0; i < s->nb_streams; i++) {
1704 AVStream *st = s->streams[i];
1705 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1707 return AVERROR(ENOMEM);
1710 if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1711 av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1715 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1716 // TODO: should be avg_frame_rate
1717 AVRational rate, tbc = st->time_base;
1718 // Default component depth to 8
1719 sc->component_depth = 8;
1720 mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1721 spf = ff_mxf_get_samples_per_frame(s, tbc);
1723 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1725 return AVERROR(EINVAL);
1727 mxf->time_base = spf->time_base;
1728 rate = av_inv_q(mxf->time_base);
1729 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1731 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1733 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1735 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1738 sc->video_bit_rate = st->codec->bit_rate ? st->codec->bit_rate : st->codec->rc_max_rate;
1739 if (s->oformat == &ff_mxf_d10_muxer) {
1740 if (sc->video_bit_rate == 50000000) {
1741 if (mxf->time_base.den == 25) sc->index = 3;
1743 } else if (sc->video_bit_rate == 40000000) {
1744 if (mxf->time_base.den == 25) sc->index = 7;
1746 } else if (sc->video_bit_rate == 30000000) {
1747 if (mxf->time_base.den == 25) sc->index = 11;
1748 else sc->index = 13;
1750 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1754 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1755 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)sc->video_bit_rate *
1756 mxf->time_base.num / (8*mxf->time_base.den);
1757 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1758 mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
1759 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1761 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1762 if (st->codec->sample_rate != 48000) {
1763 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1766 avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1767 if (s->oformat == &ff_mxf_d10_muxer) {
1768 if (st->index != 1) {
1769 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1772 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1773 st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
1774 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1776 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1778 mxf->slice_count = 1;
1782 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1783 if (sc->index == -1) {
1784 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1785 "codec not currently supported in container\n", i);
1790 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1792 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1793 sc->track_essence_element_key[15] = present[sc->index];
1794 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1796 if (!present[sc->index])
1797 mxf->essence_container_count++;
1798 present[sc->index]++;
1801 if (s->oformat == &ff_mxf_d10_muxer) {
1802 mxf->essence_container_count = 1;
1805 if (!(s->flags & AVFMT_FLAG_BITEXACT))
1808 for (i = 0; i < s->nb_streams; i++) {
1809 MXFStreamContext *sc = s->streams[i]->priv_data;
1810 // update element count
1811 sc->track_essence_element_key[13] = present[sc->index];
1812 if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1813 sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1815 sc->order = AV_RB32(sc->track_essence_element_key+12);
1818 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1819 timestamp = ff_iso8601_to_unix_time(t->value);
1821 mxf->timestamp = mxf_parse_timestamp(timestamp);
1824 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1825 if (!mxf->timecode_track)
1826 return AVERROR(ENOMEM);
1827 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1828 if (!mxf->timecode_track->priv_data)
1829 return AVERROR(ENOMEM);
1830 mxf->timecode_track->index = -1;
1833 spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
1835 if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
1841 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1842 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 };
1844 static void mxf_write_system_item(AVFormatContext *s)
1846 MXFContext *mxf = s->priv_data;
1847 AVIOContext *pb = s->pb;
1851 frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1853 // write system metadata pack
1854 avio_write(pb, system_metadata_pack_key, 16);
1855 klv_encode_ber4_length(pb, 57);
1856 avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1857 avio_w8(pb, 0x04); // content package rate
1858 avio_w8(pb, 0x00); // content package type
1859 avio_wb16(pb, 0x00); // channel handle
1860 avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
1861 if (mxf->essence_container_count > 1)
1862 avio_write(pb, multiple_desc_ul, 16);
1864 MXFStreamContext *sc = s->streams[0]->priv_data;
1865 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1869 avio_wb64(pb, 0); // creation date/time stamp
1871 avio_w8(pb, 0x81); // SMPTE 12M time code
1872 time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1873 avio_wb32(pb, time_code);
1874 avio_wb32(pb, 0); // binary group data
1877 // write system metadata package set
1878 avio_write(pb, system_metadata_package_set_key, 16);
1879 klv_encode_ber4_length(pb, 35);
1880 avio_w8(pb, 0x83); // UMID
1881 avio_wb16(pb, 0x20);
1882 mxf_write_umid(s, 1);
1885 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1887 MXFContext *mxf = s->priv_data;
1888 AVIOContext *pb = s->pb;
1889 MXFStreamContext *sc = st->priv_data;
1890 int packet_size = (uint64_t)sc->video_bit_rate*mxf->time_base.num /
1891 (8*mxf->time_base.den); // frame size
1894 packet_size += 16 + 4;
1895 packet_size += klv_fill_size(packet_size);
1897 klv_encode_ber4_length(pb, pkt->size);
1898 avio_write(pb, pkt->data, pkt->size);
1900 // ensure CBR muxing by padding to correct video frame size
1901 pad = packet_size - pkt->size - 16 - 4;
1903 avio_write(s->pb, klv_fill_key, 16);
1905 klv_encode_ber4_length(s->pb, pad);
1906 ffio_fill(s->pb, 0, pad);
1907 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1909 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1910 ffio_fill(s->pb, 0, pad);
1914 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1916 MXFContext *mxf = s->priv_data;
1917 AVIOContext *pb = s->pb;
1918 int frame_size = pkt->size / st->codec->block_align;
1919 uint8_t *samples = pkt->data;
1920 uint8_t *end = pkt->data + pkt->size;
1923 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1925 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1926 avio_wl16(pb, frame_size);
1927 avio_w8(pb, (1<<st->codec->channels)-1);
1929 while (samples < end) {
1930 for (i = 0; i < st->codec->channels; i++) {
1932 if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
1933 sample = AV_RL24(samples)<< 4;
1936 sample = AV_RL16(samples)<<12;
1939 avio_wl32(pb, sample | i);
1946 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1948 MXFContext *mxf = s->priv_data;
1949 AVIOContext *pb = s->pb;
1950 AVStream *st = s->streams[pkt->stream_index];
1951 MXFStreamContext *sc = st->priv_data;
1952 MXFIndexEntry ie = {0};
1955 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1956 if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
1957 + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
1958 mxf->edit_units_count = 0;
1959 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1964 if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1965 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1966 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1969 } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
1970 if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1971 av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1974 } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
1975 if (!mxf_parse_dv_frame(s, st, pkt)) {
1976 av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1981 if (!mxf->header_written) {
1982 if (mxf->edit_unit_byte_count) {
1983 if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
1985 mxf_write_klv_fill(s);
1986 mxf_write_index_table_segment(s);
1988 if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
1991 mxf->header_written = 1;
1994 if (st->index == 0) {
1995 if (!mxf->edit_unit_byte_count &&
1996 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1997 !(ie.flags & 0x33)) { // I frame, Gop start
1998 mxf_write_klv_fill(s);
1999 if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
2001 mxf_write_klv_fill(s);
2002 mxf_write_index_table_segment(s);
2005 mxf_write_klv_fill(s);
2006 mxf_write_system_item(s);
2008 if (!mxf->edit_unit_byte_count) {
2009 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
2010 mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
2011 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
2012 mxf->body_offset += KAG_SIZE; // size of system element
2014 mxf->edit_units_count++;
2015 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
2016 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
2017 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
2020 mxf_write_klv_fill(s);
2021 avio_write(pb, sc->track_essence_element_key, 16); // write key
2022 if (s->oformat == &ff_mxf_d10_muxer) {
2023 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2024 mxf_write_d10_video_packet(s, st, pkt);
2026 mxf_write_d10_audio_packet(s, st, pkt);
2028 klv_encode_ber4_length(pb, pkt->size); // write length
2029 avio_write(pb, pkt->data, pkt->size);
2030 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2038 static void mxf_write_random_index_pack(AVFormatContext *s)
2040 MXFContext *mxf = s->priv_data;
2041 AVIOContext *pb = s->pb;
2042 uint64_t pos = avio_tell(pb);
2045 avio_write(pb, random_index_pack_key, 16);
2046 klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2048 if (mxf->edit_unit_byte_count)
2049 avio_wb32(pb, 1); // BodySID of header partition
2052 avio_wb64(pb, 0); // offset of header partition
2054 for (i = 0; i < mxf->body_partitions_count; i++) {
2055 avio_wb32(pb, 1); // BodySID
2056 avio_wb64(pb, mxf->body_partition_offset[i]);
2059 avio_wb32(pb, 0); // BodySID of footer partition
2060 avio_wb64(pb, mxf->footer_partition_offset);
2062 avio_wb32(pb, avio_tell(pb) - pos + 4);
2065 static int mxf_write_footer(AVFormatContext *s)
2067 MXFContext *mxf = s->priv_data;
2068 AVIOContext *pb = s->pb;
2071 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2073 mxf_write_klv_fill(s);
2074 mxf->footer_partition_offset = avio_tell(pb);
2075 if (mxf->edit_unit_byte_count) { // no need to repeat index
2076 if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
2079 if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
2081 mxf_write_klv_fill(s);
2082 mxf_write_index_table_segment(s);
2085 mxf_write_klv_fill(s);
2086 mxf_write_random_index_pack(s);
2088 if (s->pb->seekable) {
2089 avio_seek(pb, 0, SEEK_SET);
2090 if (mxf->edit_unit_byte_count) {
2091 if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
2093 mxf_write_klv_fill(s);
2094 mxf_write_index_table_segment(s);
2096 if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
2101 ff_audio_interleave_close(s);
2103 av_freep(&mxf->index_entries);
2104 av_freep(&mxf->body_partition_offset);
2105 av_freep(&mxf->timecode_track->priv_data);
2106 av_freep(&mxf->timecode_track);
2113 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2115 int i, stream_count = 0;
2117 for (i = 0; i < s->nb_streams; i++)
2118 stream_count += !!s->streams[i]->last_in_packet_buffer;
2120 if (stream_count && (s->nb_streams == stream_count || flush)) {
2121 AVPacketList *pktl = s->packet_buffer;
2122 if (s->nb_streams != stream_count) {
2123 AVPacketList *last = NULL;
2124 // find last packet in edit unit
2126 if (!stream_count || pktl->pkt.stream_index == 0)
2132 // purge packet queue
2134 AVPacketList *next = pktl->next;
2136 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2137 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2138 av_free_packet(&pktl->pkt);
2145 s->packet_buffer = NULL;
2146 s->packet_buffer_end= NULL;
2149 pktl = s->packet_buffer;
2153 av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2154 s->packet_buffer = pktl->next;
2155 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2156 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2157 if(!s->packet_buffer)
2158 s->packet_buffer_end= NULL;
2163 av_init_packet(out);
2168 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2170 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
2171 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2173 return next->dts > pkt->dts ||
2174 (next->dts == pkt->dts && sc->order < sc2->order);
2177 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2179 return ff_audio_rechunk_interleave(s, out, pkt, flush,
2180 mxf_interleave_get_packet, mxf_compare_timestamps);
2183 static const AVOption d10_options[] = {
2184 { "d10_channelcount", "Force/set channelcount in generic sound essence descriptor",
2185 offsetof(MXFContext, channel_count), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 8, AV_OPT_FLAG_ENCODING_PARAM},
2189 static const AVClass mxf_d10_muxer_class = {
2190 .class_name = "MXF-D10 muxer",
2191 .item_name = av_default_item_name,
2192 .option = d10_options,
2193 .version = LIBAVUTIL_VERSION_INT,
2196 AVOutputFormat ff_mxf_muxer = {
2198 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2199 .mime_type = "application/mxf",
2200 .extensions = "mxf",
2201 .priv_data_size = sizeof(MXFContext),
2202 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2203 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2204 .write_header = mxf_write_header,
2205 .write_packet = mxf_write_packet,
2206 .write_trailer = mxf_write_footer,
2207 .flags = AVFMT_NOTIMESTAMPS,
2208 .interleave_packet = mxf_interleave,
2211 AVOutputFormat ff_mxf_d10_muxer = {
2213 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2214 .mime_type = "application/mxf",
2215 .priv_data_size = sizeof(MXFContext),
2216 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2217 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2218 .write_header = mxf_write_header,
2219 .write_packet = mxf_write_packet,
2220 .write_trailer = mxf_write_footer,
2221 .flags = AVFMT_NOTIMESTAMPS,
2222 .interleave_packet = mxf_interleave,
2223 .priv_class = &mxf_d10_muxer_class,