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
37 #include "libavutil/opt.h"
38 #include "libavutil/random_seed.h"
39 #include "libavutil/timecode.h"
40 #include "libavutil/avassert.h"
41 #include "libavcodec/bytestream.h"
42 #include "libavcodec/dnxhddata.h"
43 #include "audiointerleave.h"
49 extern AVOutputFormat ff_mxf_d10_muxer;
51 #define EDIT_UNITS_PER_BODY 250
62 unsigned slice_offset; ///< offset of audio slice
63 uint16_t temporal_ref;
67 AudioInterleaveContext aic;
68 UID track_essence_element_key;
69 int index; ///< index in mxf_essence_container_uls table
71 int order; ///< interleaving order if dts are equal
72 int interlaced; ///< whether picture is interlaced
73 int field_dominance; ///< tff=1, bff=2
75 int temporal_reordering;
76 AVRational aspect_ratio; ///< display aspect ratio
77 int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
84 void (*write_desc)(AVFormatContext *, AVStream *);
85 } MXFContainerEssenceEntry;
90 } mxf_essence_mappings[] = {
91 { AV_CODEC_ID_MPEG2VIDEO, 0 },
92 { AV_CODEC_ID_PCM_S24LE, 1 },
93 { AV_CODEC_ID_PCM_S16LE, 1 },
94 { AV_CODEC_ID_DVVIDEO, 15 },
95 { AV_CODEC_ID_DNXHD, 24 },
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 },
173 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
174 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
175 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
176 mxf_write_cdci_desc },
178 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
179 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
180 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
181 mxf_write_cdci_desc },
183 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
184 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
185 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
186 mxf_write_cdci_desc },
188 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
189 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
190 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
191 mxf_write_cdci_desc },
193 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
194 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
195 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
196 mxf_write_cdci_desc },
198 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
199 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
200 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
201 mxf_write_cdci_desc },
203 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
204 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
205 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
206 mxf_write_cdci_desc },
208 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
209 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
210 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
211 mxf_write_cdci_desc },
213 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
214 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
215 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
216 mxf_write_cdci_desc },
217 // DNxHD 1080p 10bit high
218 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
219 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
220 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
221 mxf_write_cdci_desc },
222 // DNxHD 1080p 8bit medium
223 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
224 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
225 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
226 mxf_write_cdci_desc },
227 // DNxHD 1080p 8bit high
228 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
229 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
230 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
231 mxf_write_cdci_desc },
232 // DNxHD 1080i 10bit high
233 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
234 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
235 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
236 mxf_write_cdci_desc },
237 // DNxHD 1080i 8bit medium
238 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
239 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
240 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
241 mxf_write_cdci_desc },
242 // DNxHD 1080i 8bit high
243 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
244 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
245 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
246 mxf_write_cdci_desc },
248 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
249 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
250 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
251 mxf_write_cdci_desc },
252 // DNxHD 720p 8bit high
253 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
254 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
255 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
256 mxf_write_cdci_desc },
257 // DNxHD 720p 8bit medium
258 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
259 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
260 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
261 mxf_write_cdci_desc },
262 // DNxHD 720p 8bit low
263 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
264 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
265 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
266 mxf_write_cdci_desc },
267 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
268 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
269 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
273 typedef struct MXFContext {
275 int64_t footer_partition_offset;
276 int essence_container_count;
277 AVRational time_base;
279 MXFIndexEntry *index_entries;
280 unsigned edit_units_count;
281 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
282 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
283 int last_indexed_edit_unit;
284 uint64_t *body_partition_offset;
285 unsigned body_partitions_count;
286 int last_key_index; ///< index of last key frame
288 AVTimecode tc; ///< timecode context
289 AVStream *timecode_track;
290 int timecode_base; ///< rounded time code base (25 or 30)
291 int edit_unit_byte_count; ///< fixed edit unit byte count
292 uint64_t body_offset;
293 uint32_t instance_number;
294 uint8_t umid[16]; ///< unique material identifier
297 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
298 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
301 * complete key for operation pattern, partitions, and primer pack
303 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
304 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
305 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
306 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
307 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
308 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
309 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
310 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
311 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
314 * partial key for header metadata
316 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
317 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
320 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
322 static const MXFLocalTagPair mxf_local_tag_batch[] = {
324 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
325 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
326 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
327 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
328 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
329 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
330 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
331 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
333 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
334 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
335 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
336 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
337 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
338 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
340 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
341 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
342 // Essence Container Data
343 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
344 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
346 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
347 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
348 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
349 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
350 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
352 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
353 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
354 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
355 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
356 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
358 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
359 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
360 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
362 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
363 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
364 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
365 // Timecode Component
366 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
367 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
368 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
370 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
371 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
372 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
373 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
374 // Generic Picture Essence Descriptor
375 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
376 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
377 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
378 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
379 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
380 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
381 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
382 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
383 { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
384 // CDCI Picture Essence Descriptor
385 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
386 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
387 // Generic Sound Essence Descriptor
388 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
389 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
390 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
391 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
392 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
393 // Index Table Segment
394 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
395 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
396 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
397 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
398 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
399 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
400 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
401 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
402 // MPEG video Descriptor
403 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
404 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
405 // Wave Audio Essence Descriptor
406 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
407 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
410 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
412 avio_write(pb, uuid_base, 12);
414 avio_wb16(pb, value);
417 static void mxf_write_umid(AVFormatContext *s, int type)
419 MXFContext *mxf = s->priv_data;
420 avio_write(s->pb, umid_ul, 13);
421 avio_wb24(s->pb, mxf->instance_number);
422 avio_write(s->pb, mxf->umid, 15);
423 avio_w8(s->pb, type);
426 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
428 avio_wb32(pb, ref_count);
432 static int klv_ber_length(uint64_t len)
437 return (av_log2(len) >> 3) + 2;
440 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
442 // Determine the best BER size
450 size = (av_log2(len) >> 3) + 1;
453 avio_w8(pb, 0x80 + size);
456 avio_w8(pb, len >> 8 * size & 0xff);
461 static void klv_encode_ber4_length(AVIOContext *pb, int len)
463 avio_w8(pb, 0x80 + 3);
468 * Get essence container ul index
470 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
473 for (i = 0; mxf_essence_mappings[i].id; i++)
474 if (mxf_essence_mappings[i].id == id)
475 return mxf_essence_mappings[i].index;
479 static void mxf_write_primer_pack(AVFormatContext *s)
481 AVIOContext *pb = s->pb;
482 int local_tag_number, i = 0;
484 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
486 avio_write(pb, primer_pack_key, 16);
487 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
489 avio_wb32(pb, local_tag_number); // local_tag num
490 avio_wb32(pb, 18); // item size, always 18 according to the specs
492 for (i = 0; i < local_tag_number; i++) {
493 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
494 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
498 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
504 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
506 avio_write(pb, header_metadata_key, 13);
507 avio_wb24(pb, value);
510 static void mxf_free(AVFormatContext *s)
514 for (i = 0; i < s->nb_streams; i++) {
515 AVStream *st = s->streams[i];
516 av_freep(&st->priv_data);
520 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
522 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
523 while (uls->uid[0]) {
531 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
532 #define DESCRIPTOR_COUNT(essence_container_count) \
533 (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
535 static void mxf_write_essence_container_refs(AVFormatContext *s)
537 MXFContext *c = s->priv_data;
538 AVIOContext *pb = s->pb;
541 mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
542 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
543 for (i = 0; i < c->essence_container_count; i++) {
544 MXFStreamContext *sc = s->streams[i]->priv_data;
545 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
548 if (c->essence_container_count > 1)
549 avio_write(pb, multiple_desc_ul, 16);
552 static void mxf_write_preface(AVFormatContext *s)
554 MXFContext *mxf = s->priv_data;
555 AVIOContext *pb = s->pb;
557 mxf_write_metadata_key(pb, 0x012f00);
558 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
559 klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
561 // write preface set uid
562 mxf_write_local_tag(pb, 16, 0x3C0A);
563 mxf_write_uuid(pb, Preface, 0);
564 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
566 // last modified date
567 mxf_write_local_tag(pb, 8, 0x3B02);
568 avio_wb64(pb, mxf->timestamp);
571 mxf_write_local_tag(pb, 2, 0x3B05);
572 avio_wb16(pb, 258); // v1.2
574 // write identification_refs
575 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
576 mxf_write_refs_count(pb, 1);
577 mxf_write_uuid(pb, Identification, 0);
579 // write content_storage_refs
580 mxf_write_local_tag(pb, 16, 0x3B03);
581 mxf_write_uuid(pb, ContentStorage, 0);
583 // operational pattern
584 mxf_write_local_tag(pb, 16, 0x3B09);
585 avio_write(pb, op1a_ul, 16);
587 // write essence_container_refs
588 mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
589 mxf_write_essence_container_refs(s);
591 // write dm_scheme_refs
592 mxf_write_local_tag(pb, 8, 0x3B0B);
597 * Write a local tag containing an ascii string as utf-16
599 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
601 int i, size = strlen(value);
602 mxf_write_local_tag(pb, size*2, tag);
603 for (i = 0; i < size; i++)
604 avio_wb16(pb, value[i]);
607 static void mxf_write_identification(AVFormatContext *s)
609 MXFContext *mxf = s->priv_data;
610 AVIOContext *pb = s->pb;
611 const char *company = "FFmpeg";
612 const char *product = "OP1a Muxer";
616 mxf_write_metadata_key(pb, 0x013000);
617 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
619 version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
620 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
621 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
622 klv_encode_ber_length(pb, length);
625 mxf_write_local_tag(pb, 16, 0x3C0A);
626 mxf_write_uuid(pb, Identification, 0);
627 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
629 // write generation uid
630 mxf_write_local_tag(pb, 16, 0x3C09);
631 mxf_write_uuid(pb, Identification, 1);
633 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
634 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
635 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
638 mxf_write_local_tag(pb, 16, 0x3C05);
639 mxf_write_uuid(pb, Identification, 2);
642 mxf_write_local_tag(pb, 8, 0x3C06);
643 avio_wb64(pb, mxf->timestamp);
646 static void mxf_write_content_storage(AVFormatContext *s)
648 AVIOContext *pb = s->pb;
650 mxf_write_metadata_key(pb, 0x011800);
651 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
652 klv_encode_ber_length(pb, 92);
655 mxf_write_local_tag(pb, 16, 0x3C0A);
656 mxf_write_uuid(pb, ContentStorage, 0);
657 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
659 // write package reference
660 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
661 mxf_write_refs_count(pb, 2);
662 mxf_write_uuid(pb, MaterialPackage, 0);
663 mxf_write_uuid(pb, SourcePackage, 0);
665 // write essence container data
666 mxf_write_local_tag(pb, 8 + 16, 0x1902);
667 mxf_write_refs_count(pb, 1);
668 mxf_write_uuid(pb, EssenceContainerData, 0);
671 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
673 MXFContext *mxf = s->priv_data;
674 AVIOContext *pb = s->pb;
675 MXFStreamContext *sc = st->priv_data;
677 mxf_write_metadata_key(pb, 0x013b00);
678 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
679 klv_encode_ber_length(pb, 80);
682 mxf_write_local_tag(pb, 16, 0x3C0A);
683 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
684 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
687 mxf_write_local_tag(pb, 4, 0x4801);
688 avio_wb32(pb, st->index+2);
690 // write track number
691 mxf_write_local_tag(pb, 4, 0x4804);
692 if (type == MaterialPackage)
693 avio_wb32(pb, 0); // track number of material package is 0
695 avio_write(pb, sc->track_essence_element_key + 12, 4);
697 mxf_write_local_tag(pb, 8, 0x4B01);
698 avio_wb32(pb, mxf->time_base.den);
699 avio_wb32(pb, mxf->time_base.num);
702 mxf_write_local_tag(pb, 8, 0x4B02);
705 // write sequence refs
706 mxf_write_local_tag(pb, 16, 0x4803);
707 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
710 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 };
712 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
714 MXFContext *mxf = s->priv_data;
715 AVIOContext *pb = s->pb;
717 // find data define uls
718 mxf_write_local_tag(pb, 16, 0x0201);
719 if (st == mxf->timecode_track)
720 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
722 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
723 avio_write(pb, data_def_ul->uid, 16);
727 mxf_write_local_tag(pb, 8, 0x0202);
728 avio_wb64(pb, mxf->duration);
731 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
733 MXFContext *mxf = s->priv_data;
734 AVIOContext *pb = s->pb;
735 enum MXFMetadataSetType component;
737 mxf_write_metadata_key(pb, 0x010f00);
738 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
739 klv_encode_ber_length(pb, 80);
741 mxf_write_local_tag(pb, 16, 0x3C0A);
742 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
744 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
745 mxf_write_common_fields(s, st);
747 // write structural component
748 mxf_write_local_tag(pb, 16 + 8, 0x1001);
749 mxf_write_refs_count(pb, 1);
750 if (st == mxf->timecode_track)
751 component = TimecodeComponent;
753 component = SourceClip;
754 if (type == SourcePackage)
755 component += TypeBottom;
756 mxf_write_uuid(pb, component, st->index);
759 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
761 MXFContext *mxf = s->priv_data;
762 AVIOContext *pb = s->pb;
764 mxf_write_metadata_key(pb, 0x011400);
765 klv_encode_ber_length(pb, 75);
768 mxf_write_local_tag(pb, 16, 0x3C0A);
769 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
770 TimecodeComponent + TypeBottom, st->index);
772 mxf_write_common_fields(s, st);
775 mxf_write_local_tag(pb, 8, 0x1501);
776 avio_wb64(pb, mxf->tc.start);
778 // Rounded Time Code Base
779 mxf_write_local_tag(pb, 2, 0x1502);
780 avio_wb16(pb, mxf->timecode_base);
783 mxf_write_local_tag(pb, 1, 0x1503);
784 avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
787 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
789 AVIOContext *pb = s->pb;
792 mxf_write_metadata_key(pb, 0x011100);
793 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
794 klv_encode_ber_length(pb, 108);
797 mxf_write_local_tag(pb, 16, 0x3C0A);
798 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
800 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
801 mxf_write_common_fields(s, st);
803 // write start_position
804 mxf_write_local_tag(pb, 8, 0x1201);
807 // write source package uid, end of the reference
808 mxf_write_local_tag(pb, 32, 0x1101);
809 if (type == SourcePackage) {
810 for (i = 0; i < 4; i++)
813 mxf_write_umid(s, 1);
815 // write source track id
816 mxf_write_local_tag(pb, 4, 0x1102);
817 if (type == SourcePackage)
820 avio_wb32(pb, st->index+2);
823 static void mxf_write_multi_descriptor(AVFormatContext *s)
825 MXFContext *mxf = s->priv_data;
826 AVIOContext *pb = s->pb;
830 mxf_write_metadata_key(pb, 0x014400);
831 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
832 klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
834 mxf_write_local_tag(pb, 16, 0x3C0A);
835 mxf_write_uuid(pb, MultipleDescriptor, 0);
836 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
839 mxf_write_local_tag(pb, 8, 0x3001);
840 avio_wb32(pb, mxf->time_base.den);
841 avio_wb32(pb, mxf->time_base.num);
843 // write essence container ul
844 mxf_write_local_tag(pb, 16, 0x3004);
845 if (mxf->essence_container_count > 1)
846 ul = multiple_desc_ul;
848 MXFStreamContext *sc = s->streams[0]->priv_data;
849 ul = mxf_essence_container_uls[sc->index].container_ul;
851 avio_write(pb, ul, 16);
853 // write sub descriptor refs
854 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
855 mxf_write_refs_count(pb, s->nb_streams);
856 for (i = 0; i < s->nb_streams; i++)
857 mxf_write_uuid(pb, SubDescriptor, i);
860 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
862 MXFContext *mxf = s->priv_data;
863 MXFStreamContext *sc = st->priv_data;
864 AVIOContext *pb = s->pb;
866 avio_write(pb, key, 16);
867 klv_encode_ber4_length(pb, size+20+8+12+20);
869 mxf_write_local_tag(pb, 16, 0x3C0A);
870 mxf_write_uuid(pb, SubDescriptor, st->index);
872 mxf_write_local_tag(pb, 4, 0x3006);
873 avio_wb32(pb, st->index+2);
875 mxf_write_local_tag(pb, 8, 0x3001);
876 avio_wb32(pb, mxf->time_base.den);
877 avio_wb32(pb, mxf->time_base.num);
879 mxf_write_local_tag(pb, 16, 0x3004);
880 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
883 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
884 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
885 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
886 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
887 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
889 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
891 MXFStreamContext *sc = st->priv_data;
892 AVIOContext *pb = s->pb;
893 int stored_height = (st->codec->height+15)/16*16;
896 unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
897 if (sc->interlaced && sc->field_dominance)
900 mxf_write_generic_desc(s, st, key, desc_size);
902 mxf_write_local_tag(pb, 4, 0x3203);
903 avio_wb32(pb, st->codec->width);
905 mxf_write_local_tag(pb, 4, 0x3202);
906 avio_wb32(pb, stored_height>>sc->interlaced);
908 mxf_write_local_tag(pb, 4, 0x3209);
909 avio_wb32(pb, st->codec->width);
911 if (st->codec->height == 608) // PAL + VBI
912 display_height = 576;
913 else if (st->codec->height == 512) // NTSC + VBI
914 display_height = 486;
916 display_height = st->codec->height;
918 mxf_write_local_tag(pb, 4, 0x3208);
919 avio_wb32(pb, display_height>>sc->interlaced);
922 mxf_write_local_tag(pb, 4, 0x3301);
923 avio_wb32(pb, sc->component_depth);
925 // horizontal subsampling
926 mxf_write_local_tag(pb, 4, 0x3302);
930 mxf_write_local_tag(pb, 1, 0x320C);
931 avio_w8(pb, sc->interlaced);
934 switch (st->codec->height) {
935 case 576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
936 case 608: f1 = 7; f2 = 320; break;
937 case 480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
938 case 512: f1 = 7; f2 = 270; break;
939 case 720: f1 = 26; f2 = 0; break; // progressive
940 case 1080: f1 = 21; f2 = 584; break;
941 default: f1 = 0; f2 = 0; break;
944 if (!sc->interlaced) {
949 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
950 avio_wb32(pb, sc->interlaced ? 2 : 1);
956 mxf_write_local_tag(pb, 8, 0x320E);
957 avio_wb32(pb, sc->aspect_ratio.num);
958 avio_wb32(pb, sc->aspect_ratio.den);
960 mxf_write_local_tag(pb, 16, 0x3201);
961 avio_write(pb, *sc->codec_ul, 16);
963 if (sc->interlaced && sc->field_dominance) {
964 mxf_write_local_tag(pb, 1, 0x3212);
965 avio_w8(pb, sc->field_dominance);
970 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
972 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
975 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
977 AVIOContext *pb = s->pb;
978 int profile_and_level = (st->codec->profile<<4) | st->codec->level;
980 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
983 mxf_write_local_tag(pb, 4, 0x8000);
984 avio_wb32(pb, st->codec->bit_rate);
987 mxf_write_local_tag(pb, 1, 0x8007);
988 if (!st->codec->profile)
989 profile_and_level |= 0x80; // escape bit
990 avio_w8(pb, profile_and_level);
993 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
995 AVIOContext *pb = s->pb;
997 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
1000 mxf_write_local_tag(pb, 1, 0x3D02);
1003 // write audio sampling rate
1004 mxf_write_local_tag(pb, 8, 0x3D03);
1005 avio_wb32(pb, st->codec->sample_rate);
1008 mxf_write_local_tag(pb, 4, 0x3D07);
1009 avio_wb32(pb, st->codec->channels);
1011 mxf_write_local_tag(pb, 4, 0x3D01);
1012 avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1015 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1017 AVIOContext *pb = s->pb;
1019 mxf_write_generic_sound_common(s, st, key, size+6+8);
1021 mxf_write_local_tag(pb, 2, 0x3D0A);
1022 avio_wb16(pb, st->codec->block_align);
1024 // avg bytes per sec
1025 mxf_write_local_tag(pb, 4, 0x3D09);
1026 avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1029 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1031 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1034 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1036 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1039 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1041 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1044 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
1046 MXFContext *mxf = s->priv_data;
1047 AVIOContext *pb = s->pb;
1048 int i, track_count = s->nb_streams+1;
1050 if (type == MaterialPackage) {
1051 mxf_write_metadata_key(pb, 0x013600);
1052 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1053 klv_encode_ber_length(pb, 92 + 16*track_count);
1055 mxf_write_metadata_key(pb, 0x013700);
1056 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1057 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1061 mxf_write_local_tag(pb, 16, 0x3C0A);
1062 mxf_write_uuid(pb, type, 0);
1063 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1064 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1066 // write package umid
1067 mxf_write_local_tag(pb, 32, 0x4401);
1068 mxf_write_umid(s, type == SourcePackage);
1069 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1071 // package creation date
1072 mxf_write_local_tag(pb, 8, 0x4405);
1073 avio_wb64(pb, mxf->timestamp);
1075 // package modified date
1076 mxf_write_local_tag(pb, 8, 0x4404);
1077 avio_wb64(pb, mxf->timestamp);
1080 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1081 mxf_write_refs_count(pb, track_count);
1082 mxf_write_uuid(pb, type == MaterialPackage ? Track :
1083 Track + TypeBottom, -1); // timecode track
1084 for (i = 0; i < s->nb_streams; i++)
1085 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1087 // write multiple descriptor reference
1088 if (type == SourcePackage) {
1089 mxf_write_local_tag(pb, 16, 0x4701);
1090 if (s->nb_streams > 1) {
1091 mxf_write_uuid(pb, MultipleDescriptor, 0);
1092 mxf_write_multi_descriptor(s);
1094 mxf_write_uuid(pb, SubDescriptor, 0);
1097 // write timecode track
1098 mxf_write_track(s, mxf->timecode_track, type);
1099 mxf_write_sequence(s, mxf->timecode_track, type);
1100 mxf_write_timecode_component(s, mxf->timecode_track, type);
1102 for (i = 0; i < s->nb_streams; i++) {
1103 AVStream *st = s->streams[i];
1104 mxf_write_track(s, st, type);
1105 mxf_write_sequence(s, st, type);
1106 mxf_write_structural_component(s, st, type);
1108 if (type == SourcePackage) {
1109 MXFStreamContext *sc = st->priv_data;
1110 mxf_essence_container_uls[sc->index].write_desc(s, st);
1115 static int mxf_write_essence_container_data(AVFormatContext *s)
1117 AVIOContext *pb = s->pb;
1119 mxf_write_metadata_key(pb, 0x012300);
1120 klv_encode_ber_length(pb, 72);
1122 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1123 mxf_write_uuid(pb, EssenceContainerData, 0);
1125 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1126 mxf_write_umid(s, 1);
1128 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1131 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1137 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1139 mxf_write_preface(s);
1140 mxf_write_identification(s);
1141 mxf_write_content_storage(s);
1142 mxf_write_package(s, MaterialPackage);
1143 mxf_write_package(s, SourcePackage);
1144 mxf_write_essence_container_data(s);
1148 static unsigned klv_fill_size(uint64_t size)
1150 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1151 if (pad < 20) // smallest fill item possible
1152 return pad + KAG_SIZE;
1154 return pad & (KAG_SIZE-1);
1157 static void mxf_write_index_table_segment(AVFormatContext *s)
1159 MXFContext *mxf = s->priv_data;
1160 AVIOContext *pb = s->pb;
1161 int i, j, temporal_reordering = 0;
1162 int key_index = mxf->last_key_index;
1164 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1166 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1169 avio_write(pb, index_table_segment_key, 16);
1171 if (mxf->edit_unit_byte_count) {
1172 klv_encode_ber_length(pb, 80);
1174 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1175 12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1179 mxf_write_local_tag(pb, 16, 0x3C0A);
1180 mxf_write_uuid(pb, IndexTableSegment, 0);
1183 mxf_write_local_tag(pb, 8, 0x3F0B);
1184 avio_wb32(pb, mxf->time_base.den);
1185 avio_wb32(pb, mxf->time_base.num);
1187 // index start position
1188 mxf_write_local_tag(pb, 8, 0x3F0C);
1189 avio_wb64(pb, mxf->last_indexed_edit_unit);
1192 mxf_write_local_tag(pb, 8, 0x3F0D);
1193 if (mxf->edit_unit_byte_count)
1194 avio_wb64(pb, 0); // index table covers whole container
1196 avio_wb64(pb, mxf->edit_units_count);
1198 // edit unit byte count
1199 mxf_write_local_tag(pb, 4, 0x3F05);
1200 avio_wb32(pb, mxf->edit_unit_byte_count);
1203 mxf_write_local_tag(pb, 4, 0x3F06);
1207 mxf_write_local_tag(pb, 4, 0x3F07);
1210 if (!mxf->edit_unit_byte_count) {
1211 // real slice count - 1
1212 mxf_write_local_tag(pb, 1, 0x3F08);
1213 avio_w8(pb, mxf->slice_count);
1215 // delta entry array
1216 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1217 avio_wb32(pb, s->nb_streams+1); // num of entries
1218 avio_wb32(pb, 6); // size of one entry
1219 // write system item delta entry
1221 avio_w8(pb, 0); // slice entry
1222 avio_wb32(pb, 0); // element delta
1223 for (i = 0; i < s->nb_streams; i++) {
1224 AVStream *st = s->streams[i];
1225 MXFStreamContext *sc = st->priv_data;
1226 avio_w8(pb, sc->temporal_reordering);
1227 if (sc->temporal_reordering)
1228 temporal_reordering = 1;
1229 if (i == 0) { // video track
1230 avio_w8(pb, 0); // slice number
1231 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1232 } else { // audio track
1233 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1234 audio_frame_size += klv_fill_size(audio_frame_size);
1236 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1240 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1241 avio_wb32(pb, mxf->edit_units_count); // num of entries
1242 avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1244 for (i = 0; i < mxf->edit_units_count; i++) {
1245 int temporal_offset = 0;
1247 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1248 mxf->last_key_index = key_index;
1252 if (temporal_reordering) {
1253 int pic_num_in_gop = i - key_index;
1254 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1255 for (j = key_index; j < mxf->edit_units_count; j++) {
1256 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1259 if (j == mxf->edit_units_count)
1260 av_log(s, AV_LOG_WARNING, "missing frames\n");
1261 temporal_offset = j - key_index - pic_num_in_gop;
1264 avio_w8(pb, temporal_offset);
1266 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1267 avio_w8(pb, mxf->last_key_index - i);
1269 avio_w8(pb, key_index - i); // key frame offset
1270 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1271 mxf->last_key_index = key_index;
1274 if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1275 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1276 mxf->index_entries[i].flags |= 0x80; // random access
1277 avio_w8(pb, mxf->index_entries[i].flags);
1279 avio_wb64(pb, mxf->index_entries[i].offset);
1280 if (s->nb_streams > 1)
1281 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1284 mxf->last_key_index = key_index - mxf->edit_units_count;
1285 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1286 mxf->edit_units_count = 0;
1290 static void mxf_write_klv_fill(AVFormatContext *s)
1292 unsigned pad = klv_fill_size(avio_tell(s->pb));
1294 avio_write(s->pb, klv_fill_key, 16);
1296 klv_encode_ber4_length(s->pb, pad);
1299 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1303 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1305 const uint8_t *key, int write_metadata)
1307 MXFContext *mxf = s->priv_data;
1308 AVIOContext *pb = s->pb;
1309 int64_t header_byte_count_offset;
1310 unsigned index_byte_count = 0;
1311 uint64_t partition_offset = avio_tell(pb);
1313 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1314 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1315 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1316 else if (mxf->edit_unit_byte_count && indexsid)
1317 index_byte_count = 80;
1319 if (index_byte_count) {
1320 // add encoded ber length
1321 index_byte_count += 16 + klv_ber_length(index_byte_count);
1322 index_byte_count += klv_fill_size(index_byte_count);
1325 if (!memcmp(key, body_partition_key, 16)) {
1326 mxf->body_partition_offset =
1327 av_realloc(mxf->body_partition_offset,
1328 (mxf->body_partitions_count+1)*
1329 sizeof(*mxf->body_partition_offset));
1330 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1334 avio_write(pb, key, 16);
1335 klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1337 // write partition value
1338 avio_wb16(pb, 1); // majorVersion
1339 avio_wb16(pb, 2); // minorVersion
1340 avio_wb32(pb, KAG_SIZE); // KAGSize
1342 avio_wb64(pb, partition_offset); // ThisPartition
1344 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1345 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1346 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1347 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1351 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1354 header_byte_count_offset = avio_tell(pb);
1355 avio_wb64(pb, 0); // headerByteCount, update later
1358 avio_wb64(pb, index_byte_count); // indexByteCount
1359 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1362 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1363 avio_wb64(pb, mxf->body_offset);
1367 avio_wb32(pb, bodysid); // bodySID
1369 // operational pattern
1370 avio_write(pb, op1a_ul, 16);
1372 // essence container
1373 mxf_write_essence_container_refs(s);
1375 if (write_metadata) {
1376 // mark the start of the headermetadata and calculate metadata size
1378 unsigned header_byte_count;
1380 mxf_write_klv_fill(s);
1381 start = avio_tell(s->pb);
1382 mxf_write_primer_pack(s);
1383 mxf_write_header_metadata_sets(s);
1384 pos = avio_tell(s->pb);
1385 header_byte_count = pos - start + klv_fill_size(pos);
1387 // update header_byte_count
1388 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1389 avio_wb64(pb, header_byte_count);
1390 avio_seek(pb, pos, SEEK_SET);
1396 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1399 MXFContext *mxf = s->priv_data;
1400 MXFStreamContext *sc = st->priv_data;
1402 uint8_t* header_cid;
1405 if (mxf->header_written)
1411 header_cid = pkt->data + 0x28;
1412 cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1414 if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
1420 sc->component_depth = 10;
1430 sc->component_depth = 10;
1440 sc->component_depth = 10;
1455 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1456 sc->aspect_ratio = (AVRational){ 16, 9 };
1458 mxf->edit_unit_byte_count = KAG_SIZE;
1459 for (i = 0; i < s->nb_streams; i++) {
1460 AVStream *st = s->streams[i];
1461 MXFStreamContext *sc = st->priv_data;
1462 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1463 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1464 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1465 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1466 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1467 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1474 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1476 MXFContext *mxf = s->priv_data;
1477 MXFStreamContext *sc = st->priv_data;
1478 uint8_t *vs_pack, *vsc_pack;
1479 int i, ul_index, frame_size, stype, pal;
1481 if (mxf->header_written)
1484 // Check for minimal frame size
1485 if (pkt->size < 120000)
1488 vs_pack = pkt->data + 80*5 + 48;
1489 vsc_pack = pkt->data + 80*5 + 53;
1490 stype = vs_pack[3] & 0x1f;
1491 pal = (vs_pack[3] >> 5) & 0x1;
1493 if ((vs_pack[2] & 0x07) == 0x02)
1494 sc->aspect_ratio = (AVRational){ 16, 9 };
1496 sc->aspect_ratio = (AVRational){ 4, 3 };
1498 sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1499 // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1500 // and set field dominance accordingly
1501 // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1504 case 0x18: // DV100 720p
1506 frame_size = pal ? 288000 : 240000;
1507 if (sc->interlaced) {
1508 av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1512 case 0x14: // DV100 1080i
1514 frame_size = pal ? 576000 : 480000;
1518 frame_size = pal ? 288000 : 240000;
1522 frame_size = pal ? 144000 : 120000;
1525 sc->index = ul_index + 16;
1526 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1528 mxf->edit_unit_byte_count = KAG_SIZE;
1529 for (i = 0; i < s->nb_streams; i++) {
1530 AVStream *st = s->streams[i];
1531 MXFStreamContext *sc = st->priv_data;
1532 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1533 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1534 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1535 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1536 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1537 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1544 static const UID mxf_mpeg2_codec_uls[] = {
1545 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1546 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1547 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1548 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1549 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1550 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1551 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1552 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1553 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1554 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1557 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1559 int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1561 if (avctx->profile == 4) { // Main
1562 if (avctx->level == 8) // Main
1563 return &mxf_mpeg2_codec_uls[0+long_gop];
1564 else if (avctx->level == 4) // High
1565 return &mxf_mpeg2_codec_uls[4+long_gop];
1566 else if (avctx->level == 6) // High 14
1567 return &mxf_mpeg2_codec_uls[8+long_gop];
1568 } else if (avctx->profile == 0) { // 422
1569 if (avctx->level == 5) // Main
1570 return &mxf_mpeg2_codec_uls[2+long_gop];
1571 else if (avctx->level == 2) // High
1572 return &mxf_mpeg2_codec_uls[6+long_gop];
1577 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1578 AVPacket *pkt, MXFIndexEntry *e)
1580 MXFStreamContext *sc = st->priv_data;
1584 for(i = 0; i < pkt->size - 4; i++) {
1585 c = (c<<8) + pkt->data[i];
1587 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1588 st->codec->profile = pkt->data[i+1] & 0x07;
1589 st->codec->level = pkt->data[i+2] >> 4;
1590 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1591 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1593 sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1596 } else if (c == 0x1b8) { // gop
1597 if (pkt->data[i+4]>>6 & 0x01) { // closed
1599 if (e->flags & 0x40) // sequence header present
1600 e->flags |= 0x80; // random access
1602 } else if (c == 0x1b3) { // seq
1604 switch ((pkt->data[i+4]>>4) & 0xf) {
1605 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1606 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1607 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1609 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1610 st->codec->width, st->codec->height, 1024*1024);
1612 } else if (c == 0x100) { // pic
1613 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1614 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1615 if (pict_type == 2) { // P frame
1617 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1618 } else if (pict_type == 3) { // B frame
1620 e->flags |= 0x13; // only backward prediction
1623 sc->temporal_reordering = -1;
1624 } else if (!pict_type) {
1625 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1630 if (s->oformat != &ff_mxf_d10_muxer)
1631 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1632 return !!sc->codec_ul;
1635 static uint64_t mxf_parse_timestamp(time_t timestamp)
1637 struct tm *time = gmtime(×tamp);
1640 return (uint64_t)(time->tm_year+1900) << 48 |
1641 (uint64_t)(time->tm_mon+1) << 40 |
1642 (uint64_t) time->tm_mday << 32 |
1643 time->tm_hour << 24 |
1644 time->tm_min << 16 |
1648 static void mxf_gen_umid(AVFormatContext *s)
1650 MXFContext *mxf = s->priv_data;
1651 uint32_t seed = av_get_random_seed();
1652 uint64_t umid = seed + 0x5294713400000000LL;
1654 AV_WB64(mxf->umid , umid);
1655 AV_WB64(mxf->umid+8, umid>>8);
1657 mxf->instance_number = seed;
1660 static int mxf_write_header(AVFormatContext *s)
1662 MXFContext *mxf = s->priv_data;
1664 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1665 const MXFSamplesPerFrame *spf = NULL;
1666 AVDictionaryEntry *t;
1667 int64_t timestamp = 0;
1668 AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1673 for (i = 0; i < s->nb_streams; i++) {
1674 AVStream *st = s->streams[i];
1675 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1677 return AVERROR(ENOMEM);
1680 if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1681 av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1685 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1686 AVRational rate, tbc = st->codec->time_base;
1687 // Default component depth to 8
1688 sc->component_depth = 8;
1689 mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1690 spf = ff_mxf_get_samples_per_frame(s, tbc);
1692 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1694 return AVERROR(EINVAL);
1696 mxf->time_base = spf->time_base;
1697 rate = av_inv_q(mxf->time_base);
1698 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1700 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1702 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1704 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1707 if (s->oformat == &ff_mxf_d10_muxer) {
1708 if (st->codec->bit_rate == 50000000) {
1709 if (mxf->time_base.den == 25) sc->index = 3;
1711 } else if (st->codec->bit_rate == 40000000) {
1712 if (mxf->time_base.den == 25) sc->index = 7;
1714 } else if (st->codec->bit_rate == 30000000) {
1715 if (mxf->time_base.den == 25) sc->index = 11;
1716 else sc->index = 13;
1718 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1722 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1723 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1724 mxf->time_base.num / (8*mxf->time_base.den);
1725 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1726 mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
1727 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1729 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1730 if (st->codec->sample_rate != 48000) {
1731 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1734 avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1735 if (s->oformat == &ff_mxf_d10_muxer) {
1736 if (st->index != 1) {
1737 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1740 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1741 st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
1742 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1744 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1746 mxf->slice_count = 1;
1750 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1751 if (sc->index == -1) {
1752 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1753 "codec not currently supported in container\n", i);
1758 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1760 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1761 sc->track_essence_element_key[15] = present[sc->index];
1762 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1764 if (!present[sc->index])
1765 mxf->essence_container_count++;
1766 present[sc->index]++;
1769 if (s->oformat == &ff_mxf_d10_muxer) {
1770 mxf->essence_container_count = 1;
1773 if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1776 for (i = 0; i < s->nb_streams; i++) {
1777 MXFStreamContext *sc = s->streams[i]->priv_data;
1778 // update element count
1779 sc->track_essence_element_key[13] = present[sc->index];
1780 if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1781 sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1783 sc->order = AV_RB32(sc->track_essence_element_key+12);
1786 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1787 timestamp = ff_iso8601_to_unix_time(t->value);
1789 mxf->timestamp = mxf_parse_timestamp(timestamp);
1792 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1793 if (!mxf->timecode_track)
1794 return AVERROR(ENOMEM);
1795 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1796 if (!mxf->timecode_track->priv_data)
1797 return AVERROR(ENOMEM);
1798 mxf->timecode_track->index = -1;
1801 spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
1803 if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
1809 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1810 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 };
1812 static void mxf_write_system_item(AVFormatContext *s)
1814 MXFContext *mxf = s->priv_data;
1815 AVIOContext *pb = s->pb;
1819 frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1821 // write system metadata pack
1822 avio_write(pb, system_metadata_pack_key, 16);
1823 klv_encode_ber4_length(pb, 57);
1824 avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1825 avio_w8(pb, 0x04); // content package rate
1826 avio_w8(pb, 0x00); // content package type
1827 avio_wb16(pb, 0x00); // channel handle
1828 avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
1829 if (mxf->essence_container_count > 1)
1830 avio_write(pb, multiple_desc_ul, 16);
1832 MXFStreamContext *sc = s->streams[0]->priv_data;
1833 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1837 avio_wb64(pb, 0); // creation date/time stamp
1839 avio_w8(pb, 0x81); // SMPTE 12M time code
1840 time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1841 avio_wb32(pb, time_code);
1842 avio_wb32(pb, 0); // binary group data
1845 // write system metadata package set
1846 avio_write(pb, system_metadata_package_set_key, 16);
1847 klv_encode_ber4_length(pb, 35);
1848 avio_w8(pb, 0x83); // UMID
1849 avio_wb16(pb, 0x20);
1850 mxf_write_umid(s, 1);
1853 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1855 MXFContext *mxf = s->priv_data;
1856 AVIOContext *pb = s->pb;
1857 int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1858 (8*mxf->time_base.den); // frame size
1861 packet_size += 16 + 4;
1862 packet_size += klv_fill_size(packet_size);
1864 klv_encode_ber4_length(pb, pkt->size);
1865 avio_write(pb, pkt->data, pkt->size);
1867 // ensure CBR muxing by padding to correct video frame size
1868 pad = packet_size - pkt->size - 16 - 4;
1870 avio_write(s->pb, klv_fill_key, 16);
1872 klv_encode_ber4_length(s->pb, pad);
1875 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1877 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1878 for (; pad > 0; pad--)
1883 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1885 MXFContext *mxf = s->priv_data;
1886 AVIOContext *pb = s->pb;
1887 int frame_size = pkt->size / st->codec->block_align;
1888 uint8_t *samples = pkt->data;
1889 uint8_t *end = pkt->data + pkt->size;
1892 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1894 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1895 avio_wl16(pb, frame_size);
1896 avio_w8(pb, (1<<st->codec->channels)-1);
1898 while (samples < end) {
1899 for (i = 0; i < st->codec->channels; i++) {
1901 if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
1902 sample = AV_RL24(samples)<< 4;
1905 sample = AV_RL16(samples)<<12;
1908 avio_wl32(pb, sample | i);
1915 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1917 MXFContext *mxf = s->priv_data;
1918 AVIOContext *pb = s->pb;
1919 AVStream *st = s->streams[pkt->stream_index];
1920 MXFStreamContext *sc = st->priv_data;
1921 MXFIndexEntry ie = {0};
1923 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1924 mxf->index_entries = av_realloc(mxf->index_entries,
1925 (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1926 if (!mxf->index_entries) {
1927 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1932 if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1933 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1934 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1937 } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
1938 if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1939 av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1942 } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
1943 if (!mxf_parse_dv_frame(s, st, pkt)) {
1944 av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1949 if (!mxf->header_written) {
1950 if (mxf->edit_unit_byte_count) {
1951 mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1952 mxf_write_klv_fill(s);
1953 mxf_write_index_table_segment(s);
1955 mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1957 mxf->header_written = 1;
1960 if (st->index == 0) {
1961 if (!mxf->edit_unit_byte_count &&
1962 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1963 !(ie.flags & 0x33)) { // I frame, Gop start
1964 mxf_write_klv_fill(s);
1965 mxf_write_partition(s, 1, 2, body_partition_key, 0);
1967 mxf_write_klv_fill(s);
1968 mxf_write_index_table_segment(s);
1971 mxf_write_klv_fill(s);
1972 mxf_write_system_item(s);
1974 if (!mxf->edit_unit_byte_count) {
1975 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1976 mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
1977 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
1978 mxf->body_offset += KAG_SIZE; // size of system element
1980 mxf->edit_units_count++;
1981 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1982 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1983 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1986 mxf_write_klv_fill(s);
1987 avio_write(pb, sc->track_essence_element_key, 16); // write key
1988 if (s->oformat == &ff_mxf_d10_muxer) {
1989 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1990 mxf_write_d10_video_packet(s, st, pkt);
1992 mxf_write_d10_audio_packet(s, st, pkt);
1994 klv_encode_ber4_length(pb, pkt->size); // write length
1995 avio_write(pb, pkt->data, pkt->size);
1996 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2004 static void mxf_write_random_index_pack(AVFormatContext *s)
2006 MXFContext *mxf = s->priv_data;
2007 AVIOContext *pb = s->pb;
2008 uint64_t pos = avio_tell(pb);
2011 avio_write(pb, random_index_pack_key, 16);
2012 klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2014 if (mxf->edit_unit_byte_count)
2015 avio_wb32(pb, 1); // BodySID of header partition
2018 avio_wb64(pb, 0); // offset of header partition
2020 for (i = 0; i < mxf->body_partitions_count; i++) {
2021 avio_wb32(pb, 1); // BodySID
2022 avio_wb64(pb, mxf->body_partition_offset[i]);
2025 avio_wb32(pb, 0); // BodySID of footer partition
2026 avio_wb64(pb, mxf->footer_partition_offset);
2028 avio_wb32(pb, avio_tell(pb) - pos + 4);
2031 static int mxf_write_footer(AVFormatContext *s)
2033 MXFContext *mxf = s->priv_data;
2034 AVIOContext *pb = s->pb;
2036 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2038 mxf_write_klv_fill(s);
2039 mxf->footer_partition_offset = avio_tell(pb);
2040 if (mxf->edit_unit_byte_count) { // no need to repeat index
2041 mxf_write_partition(s, 0, 0, footer_partition_key, 0);
2043 mxf_write_partition(s, 0, 2, footer_partition_key, 0);
2045 mxf_write_klv_fill(s);
2046 mxf_write_index_table_segment(s);
2049 mxf_write_klv_fill(s);
2050 mxf_write_random_index_pack(s);
2052 if (s->pb->seekable) {
2053 avio_seek(pb, 0, SEEK_SET);
2054 if (mxf->edit_unit_byte_count) {
2055 mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
2056 mxf_write_klv_fill(s);
2057 mxf_write_index_table_segment(s);
2059 mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
2063 ff_audio_interleave_close(s);
2065 av_freep(&mxf->index_entries);
2066 av_freep(&mxf->body_partition_offset);
2067 av_freep(&mxf->timecode_track->priv_data);
2068 av_freep(&mxf->timecode_track);
2075 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2077 int i, stream_count = 0;
2079 for (i = 0; i < s->nb_streams; i++)
2080 stream_count += !!s->streams[i]->last_in_packet_buffer;
2082 if (stream_count && (s->nb_streams == stream_count || flush)) {
2083 AVPacketList *pktl = s->packet_buffer;
2084 if (s->nb_streams != stream_count) {
2085 AVPacketList *last = NULL;
2086 // find last packet in edit unit
2088 if (!stream_count || pktl->pkt.stream_index == 0)
2094 // purge packet queue
2096 AVPacketList *next = pktl->next;
2098 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2099 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2100 av_free_packet(&pktl->pkt);
2107 s->packet_buffer = NULL;
2108 s->packet_buffer_end= NULL;
2111 pktl = s->packet_buffer;
2115 av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2116 s->packet_buffer = pktl->next;
2117 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2118 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2119 if(!s->packet_buffer)
2120 s->packet_buffer_end= NULL;
2125 av_init_packet(out);
2130 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2132 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
2133 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2135 return next->dts > pkt->dts ||
2136 (next->dts == pkt->dts && sc->order < sc2->order);
2139 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2141 return ff_audio_rechunk_interleave(s, out, pkt, flush,
2142 mxf_interleave_get_packet, mxf_compare_timestamps);
2145 AVOutputFormat ff_mxf_muxer = {
2147 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2148 .mime_type = "application/mxf",
2149 .extensions = "mxf",
2150 .priv_data_size = sizeof(MXFContext),
2151 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2152 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2153 .write_header = mxf_write_header,
2154 .write_packet = mxf_write_packet,
2155 .write_trailer = mxf_write_footer,
2156 .flags = AVFMT_NOTIMESTAMPS,
2157 .interleave_packet = mxf_interleave,
2160 AVOutputFormat ff_mxf_d10_muxer = {
2162 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2163 .mime_type = "application/mxf",
2164 .priv_data_size = sizeof(MXFContext),
2165 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2166 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2167 .write_header = mxf_write_header,
2168 .write_packet = mxf_write_packet,
2169 .write_trailer = mxf_write_footer,
2170 .flags = AVFMT_NOTIMESTAMPS,
2171 .interleave_packet = mxf_interleave,