3 * Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com>
4 * Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
26 * SMPTE 377M MXF File Format Specifications
27 * SMPTE 379M MXF Generic Container
28 * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
29 * SMPTE RP210: SMPTE Metadata Dictionary
30 * SMPTE RP224: Registry of SMPTE Universal Labels
38 #include "libavutil/opt.h"
39 #include "libavutil/random_seed.h"
40 #include "libavutil/timecode.h"
41 #include "libavutil/avassert.h"
42 #include "libavcodec/bytestream.h"
43 #include "libavcodec/dnxhddata.h"
44 #include "audiointerleave.h"
50 extern AVOutputFormat ff_mxf_d10_muxer;
52 #define EDIT_UNITS_PER_BODY 250
63 unsigned slice_offset; ///< offset of audio slice
64 uint16_t temporal_ref;
68 AudioInterleaveContext aic;
69 UID track_essence_element_key;
70 int index; ///< index in mxf_essence_container_uls table
72 int order; ///< interleaving order if dts are equal
73 int interlaced; ///< whether picture is interlaced
74 int field_dominance; ///< tff=1, bff=2
76 int temporal_reordering;
77 AVRational aspect_ratio; ///< display aspect ratio
78 int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
85 void (*write_desc)(AVFormatContext *, AVStream *);
86 } MXFContainerEssenceEntry;
91 } mxf_essence_mappings[] = {
92 { AV_CODEC_ID_MPEG2VIDEO, 0 },
93 { AV_CODEC_ID_PCM_S24LE, 1 },
94 { AV_CODEC_ID_PCM_S16LE, 1 },
95 { AV_CODEC_ID_DVVIDEO, 15 },
96 { AV_CODEC_ID_DNXHD, 24 },
100 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
101 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
102 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
103 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
104 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
106 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
107 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
108 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
109 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
110 mxf_write_mpegvideo_desc },
111 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
112 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
113 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
114 mxf_write_aes3_desc },
115 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
116 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
117 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
118 mxf_write_wav_desc },
119 // D-10 625/50 PAL 50mb/s
120 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
121 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
122 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
123 mxf_write_cdci_desc },
124 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
125 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
126 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
127 mxf_write_generic_sound_desc },
128 // D-10 525/60 NTSC 50mb/s
129 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
130 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
131 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
132 mxf_write_cdci_desc },
133 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
134 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
135 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
136 mxf_write_generic_sound_desc },
137 // D-10 625/50 PAL 40mb/s
138 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
139 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
140 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
141 mxf_write_cdci_desc },
142 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
143 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
144 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
145 mxf_write_generic_sound_desc },
146 // D-10 525/60 NTSC 40mb/s
147 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
148 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
149 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
150 mxf_write_cdci_desc },
151 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
152 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
153 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
154 mxf_write_generic_sound_desc },
155 // D-10 625/50 PAL 30mb/s
156 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
157 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
158 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
159 mxf_write_cdci_desc },
160 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
161 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
162 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
163 mxf_write_generic_sound_desc },
164 // D-10 525/60 NTSC 30mb/s
165 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
166 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
167 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
168 mxf_write_cdci_desc },
169 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
170 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
171 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
172 mxf_write_generic_sound_desc },
174 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
175 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
176 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
177 mxf_write_cdci_desc },
179 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
180 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
181 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
182 mxf_write_cdci_desc },
184 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
185 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
186 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
187 mxf_write_cdci_desc },
189 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
190 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
191 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
192 mxf_write_cdci_desc },
194 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
195 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
196 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
197 mxf_write_cdci_desc },
199 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
200 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
201 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
202 mxf_write_cdci_desc },
204 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
205 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
206 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
207 mxf_write_cdci_desc },
209 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
210 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
211 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
212 mxf_write_cdci_desc },
214 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
215 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
216 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
217 mxf_write_cdci_desc },
218 // DNxHD 1080p 10bit high
219 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
220 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
221 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
222 mxf_write_cdci_desc },
223 // DNxHD 1080p 8bit medium
224 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
225 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
226 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
227 mxf_write_cdci_desc },
228 // DNxHD 1080p 8bit high
229 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
230 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
231 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
232 mxf_write_cdci_desc },
233 // DNxHD 1080i 10bit high
234 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
235 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
236 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
237 mxf_write_cdci_desc },
238 // DNxHD 1080i 8bit medium
239 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
240 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
241 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
242 mxf_write_cdci_desc },
243 // DNxHD 1080i 8bit high
244 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
245 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
246 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
247 mxf_write_cdci_desc },
249 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
250 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
251 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
252 mxf_write_cdci_desc },
253 // DNxHD 720p 8bit high
254 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
255 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
256 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
257 mxf_write_cdci_desc },
258 // DNxHD 720p 8bit medium
259 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
260 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
261 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
262 mxf_write_cdci_desc },
263 // DNxHD 720p 8bit low
264 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
265 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
266 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
267 mxf_write_cdci_desc },
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 },
270 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
274 typedef struct MXFContext {
276 int64_t footer_partition_offset;
277 int essence_container_count;
278 AVRational time_base;
280 MXFIndexEntry *index_entries;
281 unsigned edit_units_count;
282 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
283 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
284 int last_indexed_edit_unit;
285 uint64_t *body_partition_offset;
286 unsigned body_partitions_count;
287 int last_key_index; ///< index of last key frame
289 AVTimecode tc; ///< timecode context
290 AVStream *timecode_track;
291 int timecode_base; ///< rounded time code base (25 or 30)
292 int edit_unit_byte_count; ///< fixed edit unit byte count
293 uint64_t body_offset;
294 uint32_t instance_number;
295 uint8_t umid[16]; ///< unique material identifier
298 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
299 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
302 * complete key for operation pattern, partitions, and primer pack
304 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
305 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
306 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
307 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
308 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
309 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
310 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
311 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
312 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
315 * partial key for header metadata
317 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
318 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
321 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
323 static const MXFLocalTagPair mxf_local_tag_batch[] = {
325 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
326 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
327 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
328 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
329 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
330 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
331 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
332 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
334 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
335 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
336 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
337 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
338 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
339 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
341 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
342 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
343 // Essence Container Data
344 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
345 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
347 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
348 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
349 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
350 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
351 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
353 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
354 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
355 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
356 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
357 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
359 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
360 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
361 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
363 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
364 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
365 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
366 // Timecode Component
367 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
368 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
369 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
371 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
372 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
373 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
374 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
375 // Generic Picture Essence Descriptor
376 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
377 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
378 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
379 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
380 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
381 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
382 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
383 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
384 { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
385 // CDCI Picture Essence Descriptor
386 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
387 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
388 // Generic Sound Essence Descriptor
389 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
390 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
391 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
392 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
393 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
394 // Index Table Segment
395 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
396 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
397 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
398 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
399 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
400 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
401 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
402 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
403 // MPEG video Descriptor
404 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
405 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
406 // Wave Audio Essence Descriptor
407 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
408 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
411 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
413 avio_write(pb, uuid_base, 12);
415 avio_wb16(pb, value);
418 static void mxf_write_umid(AVFormatContext *s, int type)
420 MXFContext *mxf = s->priv_data;
421 avio_write(s->pb, umid_ul, 13);
422 avio_wb24(s->pb, mxf->instance_number);
423 avio_write(s->pb, mxf->umid, 15);
424 avio_w8(s->pb, type);
427 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
429 avio_wb32(pb, ref_count);
433 static int klv_ber_length(uint64_t len)
438 return (av_log2(len) >> 3) + 2;
441 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
443 // Determine the best BER size
451 size = (av_log2(len) >> 3) + 1;
454 avio_w8(pb, 0x80 + size);
457 avio_w8(pb, len >> 8 * size & 0xff);
462 static void klv_encode_ber4_length(AVIOContext *pb, int len)
464 avio_w8(pb, 0x80 + 3);
469 * Get essence container ul index
471 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
474 for (i = 0; mxf_essence_mappings[i].id; i++)
475 if (mxf_essence_mappings[i].id == id)
476 return mxf_essence_mappings[i].index;
480 static void mxf_write_primer_pack(AVFormatContext *s)
482 AVIOContext *pb = s->pb;
483 int local_tag_number, i = 0;
485 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
487 avio_write(pb, primer_pack_key, 16);
488 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
490 avio_wb32(pb, local_tag_number); // local_tag num
491 avio_wb32(pb, 18); // item size, always 18 according to the specs
493 for (i = 0; i < local_tag_number; i++) {
494 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
495 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
499 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
505 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
507 avio_write(pb, header_metadata_key, 13);
508 avio_wb24(pb, value);
511 static void mxf_free(AVFormatContext *s)
515 for (i = 0; i < s->nb_streams; i++) {
516 AVStream *st = s->streams[i];
517 av_freep(&st->priv_data);
521 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
523 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
524 while (uls->uid[0]) {
532 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
533 #define DESCRIPTOR_COUNT(essence_container_count) \
534 (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
536 static void mxf_write_essence_container_refs(AVFormatContext *s)
538 MXFContext *c = s->priv_data;
539 AVIOContext *pb = s->pb;
542 mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
543 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
544 for (i = 0; i < c->essence_container_count; i++) {
545 MXFStreamContext *sc = s->streams[i]->priv_data;
546 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
549 if (c->essence_container_count > 1)
550 avio_write(pb, multiple_desc_ul, 16);
553 static void mxf_write_preface(AVFormatContext *s)
555 MXFContext *mxf = s->priv_data;
556 AVIOContext *pb = s->pb;
558 mxf_write_metadata_key(pb, 0x012f00);
559 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
560 klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
562 // write preface set uid
563 mxf_write_local_tag(pb, 16, 0x3C0A);
564 mxf_write_uuid(pb, Preface, 0);
565 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
567 // last modified date
568 mxf_write_local_tag(pb, 8, 0x3B02);
569 avio_wb64(pb, mxf->timestamp);
572 mxf_write_local_tag(pb, 2, 0x3B05);
573 avio_wb16(pb, 258); // v1.2
575 // write identification_refs
576 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
577 mxf_write_refs_count(pb, 1);
578 mxf_write_uuid(pb, Identification, 0);
580 // write content_storage_refs
581 mxf_write_local_tag(pb, 16, 0x3B03);
582 mxf_write_uuid(pb, ContentStorage, 0);
584 // operational pattern
585 mxf_write_local_tag(pb, 16, 0x3B09);
586 avio_write(pb, op1a_ul, 16);
588 // write essence_container_refs
589 mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
590 mxf_write_essence_container_refs(s);
592 // write dm_scheme_refs
593 mxf_write_local_tag(pb, 8, 0x3B0B);
598 * Write a local tag containing an ascii string as utf-16
600 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
602 int i, size = strlen(value);
603 mxf_write_local_tag(pb, size*2, tag);
604 for (i = 0; i < size; i++)
605 avio_wb16(pb, value[i]);
608 static void mxf_write_identification(AVFormatContext *s)
610 MXFContext *mxf = s->priv_data;
611 AVIOContext *pb = s->pb;
612 const char *company = "FFmpeg";
613 const char *product = "OP1a Muxer";
617 mxf_write_metadata_key(pb, 0x013000);
618 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
620 version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
621 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
622 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
623 klv_encode_ber_length(pb, length);
626 mxf_write_local_tag(pb, 16, 0x3C0A);
627 mxf_write_uuid(pb, Identification, 0);
628 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
630 // write generation uid
631 mxf_write_local_tag(pb, 16, 0x3C09);
632 mxf_write_uuid(pb, Identification, 1);
634 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
635 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
636 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
639 mxf_write_local_tag(pb, 16, 0x3C05);
640 mxf_write_uuid(pb, Identification, 2);
643 mxf_write_local_tag(pb, 8, 0x3C06);
644 avio_wb64(pb, mxf->timestamp);
647 static void mxf_write_content_storage(AVFormatContext *s)
649 AVIOContext *pb = s->pb;
651 mxf_write_metadata_key(pb, 0x011800);
652 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
653 klv_encode_ber_length(pb, 92);
656 mxf_write_local_tag(pb, 16, 0x3C0A);
657 mxf_write_uuid(pb, ContentStorage, 0);
658 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
660 // write package reference
661 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
662 mxf_write_refs_count(pb, 2);
663 mxf_write_uuid(pb, MaterialPackage, 0);
664 mxf_write_uuid(pb, SourcePackage, 0);
666 // write essence container data
667 mxf_write_local_tag(pb, 8 + 16, 0x1902);
668 mxf_write_refs_count(pb, 1);
669 mxf_write_uuid(pb, EssenceContainerData, 0);
672 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
674 MXFContext *mxf = s->priv_data;
675 AVIOContext *pb = s->pb;
676 MXFStreamContext *sc = st->priv_data;
678 mxf_write_metadata_key(pb, 0x013b00);
679 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
680 klv_encode_ber_length(pb, 80);
683 mxf_write_local_tag(pb, 16, 0x3C0A);
684 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
685 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
688 mxf_write_local_tag(pb, 4, 0x4801);
689 avio_wb32(pb, st->index+2);
691 // write track number
692 mxf_write_local_tag(pb, 4, 0x4804);
693 if (type == MaterialPackage)
694 avio_wb32(pb, 0); // track number of material package is 0
696 avio_write(pb, sc->track_essence_element_key + 12, 4);
698 mxf_write_local_tag(pb, 8, 0x4B01);
699 avio_wb32(pb, mxf->time_base.den);
700 avio_wb32(pb, mxf->time_base.num);
703 mxf_write_local_tag(pb, 8, 0x4B02);
706 // write sequence refs
707 mxf_write_local_tag(pb, 16, 0x4803);
708 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
711 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 };
713 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
715 MXFContext *mxf = s->priv_data;
716 AVIOContext *pb = s->pb;
718 // find data define uls
719 mxf_write_local_tag(pb, 16, 0x0201);
720 if (st == mxf->timecode_track)
721 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
723 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
724 avio_write(pb, data_def_ul->uid, 16);
728 mxf_write_local_tag(pb, 8, 0x0202);
729 avio_wb64(pb, mxf->duration);
732 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
734 MXFContext *mxf = s->priv_data;
735 AVIOContext *pb = s->pb;
736 enum MXFMetadataSetType component;
738 mxf_write_metadata_key(pb, 0x010f00);
739 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
740 klv_encode_ber_length(pb, 80);
742 mxf_write_local_tag(pb, 16, 0x3C0A);
743 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
745 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
746 mxf_write_common_fields(s, st);
748 // write structural component
749 mxf_write_local_tag(pb, 16 + 8, 0x1001);
750 mxf_write_refs_count(pb, 1);
751 if (st == mxf->timecode_track)
752 component = TimecodeComponent;
754 component = SourceClip;
755 if (type == SourcePackage)
756 component += TypeBottom;
757 mxf_write_uuid(pb, component, st->index);
760 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
762 MXFContext *mxf = s->priv_data;
763 AVIOContext *pb = s->pb;
765 mxf_write_metadata_key(pb, 0x011400);
766 klv_encode_ber_length(pb, 75);
769 mxf_write_local_tag(pb, 16, 0x3C0A);
770 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
771 TimecodeComponent + TypeBottom, st->index);
773 mxf_write_common_fields(s, st);
776 mxf_write_local_tag(pb, 8, 0x1501);
777 avio_wb64(pb, mxf->tc.start);
779 // Rounded Time Code Base
780 mxf_write_local_tag(pb, 2, 0x1502);
781 avio_wb16(pb, mxf->timecode_base);
784 mxf_write_local_tag(pb, 1, 0x1503);
785 avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
788 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
790 AVIOContext *pb = s->pb;
793 mxf_write_metadata_key(pb, 0x011100);
794 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
795 klv_encode_ber_length(pb, 108);
798 mxf_write_local_tag(pb, 16, 0x3C0A);
799 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
801 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
802 mxf_write_common_fields(s, st);
804 // write start_position
805 mxf_write_local_tag(pb, 8, 0x1201);
808 // write source package uid, end of the reference
809 mxf_write_local_tag(pb, 32, 0x1101);
810 if (type == SourcePackage) {
811 for (i = 0; i < 4; i++)
814 mxf_write_umid(s, 1);
816 // write source track id
817 mxf_write_local_tag(pb, 4, 0x1102);
818 if (type == SourcePackage)
821 avio_wb32(pb, st->index+2);
824 static void mxf_write_multi_descriptor(AVFormatContext *s)
826 MXFContext *mxf = s->priv_data;
827 AVIOContext *pb = s->pb;
831 mxf_write_metadata_key(pb, 0x014400);
832 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
833 klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
835 mxf_write_local_tag(pb, 16, 0x3C0A);
836 mxf_write_uuid(pb, MultipleDescriptor, 0);
837 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
840 mxf_write_local_tag(pb, 8, 0x3001);
841 avio_wb32(pb, mxf->time_base.den);
842 avio_wb32(pb, mxf->time_base.num);
844 // write essence container ul
845 mxf_write_local_tag(pb, 16, 0x3004);
846 if (mxf->essence_container_count > 1)
847 ul = multiple_desc_ul;
849 MXFStreamContext *sc = s->streams[0]->priv_data;
850 ul = mxf_essence_container_uls[sc->index].container_ul;
852 avio_write(pb, ul, 16);
854 // write sub descriptor refs
855 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
856 mxf_write_refs_count(pb, s->nb_streams);
857 for (i = 0; i < s->nb_streams; i++)
858 mxf_write_uuid(pb, SubDescriptor, i);
861 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
863 MXFContext *mxf = s->priv_data;
864 MXFStreamContext *sc = st->priv_data;
865 AVIOContext *pb = s->pb;
867 avio_write(pb, key, 16);
868 klv_encode_ber4_length(pb, size+20+8+12+20);
870 mxf_write_local_tag(pb, 16, 0x3C0A);
871 mxf_write_uuid(pb, SubDescriptor, st->index);
873 mxf_write_local_tag(pb, 4, 0x3006);
874 avio_wb32(pb, st->index+2);
876 mxf_write_local_tag(pb, 8, 0x3001);
877 avio_wb32(pb, mxf->time_base.den);
878 avio_wb32(pb, mxf->time_base.num);
880 mxf_write_local_tag(pb, 16, 0x3004);
881 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
884 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
885 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
886 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
887 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
888 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
890 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
892 MXFStreamContext *sc = st->priv_data;
893 AVIOContext *pb = s->pb;
894 int stored_height = (st->codec->height+15)/16*16;
897 unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
898 if (sc->interlaced && sc->field_dominance)
901 mxf_write_generic_desc(s, st, key, desc_size);
903 mxf_write_local_tag(pb, 4, 0x3203);
904 avio_wb32(pb, st->codec->width);
906 mxf_write_local_tag(pb, 4, 0x3202);
907 avio_wb32(pb, stored_height>>sc->interlaced);
909 mxf_write_local_tag(pb, 4, 0x3209);
910 avio_wb32(pb, st->codec->width);
912 if (st->codec->height == 608) // PAL + VBI
913 display_height = 576;
914 else if (st->codec->height == 512) // NTSC + VBI
915 display_height = 486;
917 display_height = st->codec->height;
919 mxf_write_local_tag(pb, 4, 0x3208);
920 avio_wb32(pb, display_height>>sc->interlaced);
923 mxf_write_local_tag(pb, 4, 0x3301);
924 avio_wb32(pb, sc->component_depth);
926 // horizontal subsampling
927 mxf_write_local_tag(pb, 4, 0x3302);
931 mxf_write_local_tag(pb, 1, 0x320C);
932 avio_w8(pb, sc->interlaced);
935 switch (st->codec->height) {
936 case 576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
937 case 608: f1 = 7; f2 = 320; break;
938 case 480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
939 case 512: f1 = 7; f2 = 270; break;
940 case 720: f1 = 26; f2 = 0; break; // progressive
941 case 1080: f1 = 21; f2 = 584; break;
942 default: f1 = 0; f2 = 0; break;
945 if (!sc->interlaced) {
950 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
951 avio_wb32(pb, sc->interlaced ? 2 : 1);
957 mxf_write_local_tag(pb, 8, 0x320E);
958 avio_wb32(pb, sc->aspect_ratio.num);
959 avio_wb32(pb, sc->aspect_ratio.den);
961 mxf_write_local_tag(pb, 16, 0x3201);
962 avio_write(pb, *sc->codec_ul, 16);
964 if (sc->interlaced && sc->field_dominance) {
965 mxf_write_local_tag(pb, 1, 0x3212);
966 avio_w8(pb, sc->field_dominance);
971 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
973 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
976 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
978 AVIOContext *pb = s->pb;
979 int profile_and_level = (st->codec->profile<<4) | st->codec->level;
981 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
984 mxf_write_local_tag(pb, 4, 0x8000);
985 avio_wb32(pb, st->codec->bit_rate);
988 mxf_write_local_tag(pb, 1, 0x8007);
989 if (!st->codec->profile)
990 profile_and_level |= 0x80; // escape bit
991 avio_w8(pb, profile_and_level);
994 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
996 AVIOContext *pb = s->pb;
998 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
1001 mxf_write_local_tag(pb, 1, 0x3D02);
1004 // write audio sampling rate
1005 mxf_write_local_tag(pb, 8, 0x3D03);
1006 avio_wb32(pb, st->codec->sample_rate);
1009 mxf_write_local_tag(pb, 4, 0x3D07);
1010 avio_wb32(pb, st->codec->channels);
1012 mxf_write_local_tag(pb, 4, 0x3D01);
1013 avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1016 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1018 AVIOContext *pb = s->pb;
1020 mxf_write_generic_sound_common(s, st, key, size+6+8);
1022 mxf_write_local_tag(pb, 2, 0x3D0A);
1023 avio_wb16(pb, st->codec->block_align);
1025 // avg bytes per sec
1026 mxf_write_local_tag(pb, 4, 0x3D09);
1027 avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1030 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1032 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1035 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1037 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1040 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1042 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1045 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
1047 MXFContext *mxf = s->priv_data;
1048 AVIOContext *pb = s->pb;
1049 int i, track_count = s->nb_streams+1;
1051 if (type == MaterialPackage) {
1052 mxf_write_metadata_key(pb, 0x013600);
1053 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1054 klv_encode_ber_length(pb, 92 + 16*track_count);
1056 mxf_write_metadata_key(pb, 0x013700);
1057 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1058 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1062 mxf_write_local_tag(pb, 16, 0x3C0A);
1063 mxf_write_uuid(pb, type, 0);
1064 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1065 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1067 // write package umid
1068 mxf_write_local_tag(pb, 32, 0x4401);
1069 mxf_write_umid(s, type == SourcePackage);
1070 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1072 // package creation date
1073 mxf_write_local_tag(pb, 8, 0x4405);
1074 avio_wb64(pb, mxf->timestamp);
1076 // package modified date
1077 mxf_write_local_tag(pb, 8, 0x4404);
1078 avio_wb64(pb, mxf->timestamp);
1081 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1082 mxf_write_refs_count(pb, track_count);
1083 mxf_write_uuid(pb, type == MaterialPackage ? Track :
1084 Track + TypeBottom, -1); // timecode track
1085 for (i = 0; i < s->nb_streams; i++)
1086 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1088 // write multiple descriptor reference
1089 if (type == SourcePackage) {
1090 mxf_write_local_tag(pb, 16, 0x4701);
1091 if (s->nb_streams > 1) {
1092 mxf_write_uuid(pb, MultipleDescriptor, 0);
1093 mxf_write_multi_descriptor(s);
1095 mxf_write_uuid(pb, SubDescriptor, 0);
1098 // write timecode track
1099 mxf_write_track(s, mxf->timecode_track, type);
1100 mxf_write_sequence(s, mxf->timecode_track, type);
1101 mxf_write_timecode_component(s, mxf->timecode_track, type);
1103 for (i = 0; i < s->nb_streams; i++) {
1104 AVStream *st = s->streams[i];
1105 mxf_write_track(s, st, type);
1106 mxf_write_sequence(s, st, type);
1107 mxf_write_structural_component(s, st, type);
1109 if (type == SourcePackage) {
1110 MXFStreamContext *sc = st->priv_data;
1111 mxf_essence_container_uls[sc->index].write_desc(s, st);
1116 static int mxf_write_essence_container_data(AVFormatContext *s)
1118 AVIOContext *pb = s->pb;
1120 mxf_write_metadata_key(pb, 0x012300);
1121 klv_encode_ber_length(pb, 72);
1123 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1124 mxf_write_uuid(pb, EssenceContainerData, 0);
1126 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1127 mxf_write_umid(s, 1);
1129 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1132 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1138 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1140 mxf_write_preface(s);
1141 mxf_write_identification(s);
1142 mxf_write_content_storage(s);
1143 mxf_write_package(s, MaterialPackage);
1144 mxf_write_package(s, SourcePackage);
1145 mxf_write_essence_container_data(s);
1149 static unsigned klv_fill_size(uint64_t size)
1151 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1152 if (pad < 20) // smallest fill item possible
1153 return pad + KAG_SIZE;
1155 return pad & (KAG_SIZE-1);
1158 static void mxf_write_index_table_segment(AVFormatContext *s)
1160 MXFContext *mxf = s->priv_data;
1161 AVIOContext *pb = s->pb;
1162 int i, j, temporal_reordering = 0;
1163 int key_index = mxf->last_key_index;
1165 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1167 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1170 avio_write(pb, index_table_segment_key, 16);
1172 if (mxf->edit_unit_byte_count) {
1173 klv_encode_ber_length(pb, 80);
1175 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1176 12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1180 mxf_write_local_tag(pb, 16, 0x3C0A);
1181 mxf_write_uuid(pb, IndexTableSegment, 0);
1184 mxf_write_local_tag(pb, 8, 0x3F0B);
1185 avio_wb32(pb, mxf->time_base.den);
1186 avio_wb32(pb, mxf->time_base.num);
1188 // index start position
1189 mxf_write_local_tag(pb, 8, 0x3F0C);
1190 avio_wb64(pb, mxf->last_indexed_edit_unit);
1193 mxf_write_local_tag(pb, 8, 0x3F0D);
1194 if (mxf->edit_unit_byte_count)
1195 avio_wb64(pb, 0); // index table covers whole container
1197 avio_wb64(pb, mxf->edit_units_count);
1199 // edit unit byte count
1200 mxf_write_local_tag(pb, 4, 0x3F05);
1201 avio_wb32(pb, mxf->edit_unit_byte_count);
1204 mxf_write_local_tag(pb, 4, 0x3F06);
1208 mxf_write_local_tag(pb, 4, 0x3F07);
1211 if (!mxf->edit_unit_byte_count) {
1212 // real slice count - 1
1213 mxf_write_local_tag(pb, 1, 0x3F08);
1214 avio_w8(pb, mxf->slice_count);
1216 // delta entry array
1217 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1218 avio_wb32(pb, s->nb_streams+1); // num of entries
1219 avio_wb32(pb, 6); // size of one entry
1220 // write system item delta entry
1222 avio_w8(pb, 0); // slice entry
1223 avio_wb32(pb, 0); // element delta
1224 for (i = 0; i < s->nb_streams; i++) {
1225 AVStream *st = s->streams[i];
1226 MXFStreamContext *sc = st->priv_data;
1227 avio_w8(pb, sc->temporal_reordering);
1228 if (sc->temporal_reordering)
1229 temporal_reordering = 1;
1230 if (i == 0) { // video track
1231 avio_w8(pb, 0); // slice number
1232 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1233 } else { // audio track
1234 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1235 audio_frame_size += klv_fill_size(audio_frame_size);
1237 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1241 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1242 avio_wb32(pb, mxf->edit_units_count); // num of entries
1243 avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1245 for (i = 0; i < mxf->edit_units_count; i++) {
1246 int temporal_offset = 0;
1248 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1249 mxf->last_key_index = key_index;
1253 if (temporal_reordering) {
1254 int pic_num_in_gop = i - key_index;
1255 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1256 for (j = key_index; j < mxf->edit_units_count; j++) {
1257 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1260 if (j == mxf->edit_units_count)
1261 av_log(s, AV_LOG_WARNING, "missing frames\n");
1262 temporal_offset = j - key_index - pic_num_in_gop;
1265 avio_w8(pb, temporal_offset);
1267 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1268 avio_w8(pb, mxf->last_key_index - i);
1270 avio_w8(pb, key_index - i); // key frame offset
1271 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1272 mxf->last_key_index = key_index;
1275 if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1276 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1277 mxf->index_entries[i].flags |= 0x80; // random access
1278 avio_w8(pb, mxf->index_entries[i].flags);
1280 avio_wb64(pb, mxf->index_entries[i].offset);
1281 if (s->nb_streams > 1)
1282 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1285 mxf->last_key_index = key_index - mxf->edit_units_count;
1286 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1287 mxf->edit_units_count = 0;
1291 static void mxf_write_klv_fill(AVFormatContext *s)
1293 unsigned pad = klv_fill_size(avio_tell(s->pb));
1295 avio_write(s->pb, klv_fill_key, 16);
1297 klv_encode_ber4_length(s->pb, pad);
1300 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1304 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1306 const uint8_t *key, int write_metadata)
1308 MXFContext *mxf = s->priv_data;
1309 AVIOContext *pb = s->pb;
1310 int64_t header_byte_count_offset;
1311 unsigned index_byte_count = 0;
1312 uint64_t partition_offset = avio_tell(pb);
1314 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1315 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1316 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1317 else if (mxf->edit_unit_byte_count && indexsid)
1318 index_byte_count = 80;
1320 if (index_byte_count) {
1321 // add encoded ber length
1322 index_byte_count += 16 + klv_ber_length(index_byte_count);
1323 index_byte_count += klv_fill_size(index_byte_count);
1326 if (!memcmp(key, body_partition_key, 16)) {
1327 mxf->body_partition_offset =
1328 av_realloc(mxf->body_partition_offset,
1329 (mxf->body_partitions_count+1)*
1330 sizeof(*mxf->body_partition_offset));
1331 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1335 avio_write(pb, key, 16);
1336 klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1338 // write partition value
1339 avio_wb16(pb, 1); // majorVersion
1340 avio_wb16(pb, 2); // minorVersion
1341 avio_wb32(pb, KAG_SIZE); // KAGSize
1343 avio_wb64(pb, partition_offset); // ThisPartition
1345 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1346 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1347 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1348 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1352 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1355 header_byte_count_offset = avio_tell(pb);
1356 avio_wb64(pb, 0); // headerByteCount, update later
1359 avio_wb64(pb, index_byte_count); // indexByteCount
1360 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1363 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1364 avio_wb64(pb, mxf->body_offset);
1368 avio_wb32(pb, bodysid); // bodySID
1370 // operational pattern
1371 avio_write(pb, op1a_ul, 16);
1373 // essence container
1374 mxf_write_essence_container_refs(s);
1376 if (write_metadata) {
1377 // mark the start of the headermetadata and calculate metadata size
1379 unsigned header_byte_count;
1381 mxf_write_klv_fill(s);
1382 start = avio_tell(s->pb);
1383 mxf_write_primer_pack(s);
1384 mxf_write_header_metadata_sets(s);
1385 pos = avio_tell(s->pb);
1386 header_byte_count = pos - start + klv_fill_size(pos);
1388 // update header_byte_count
1389 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1390 avio_wb64(pb, header_byte_count);
1391 avio_seek(pb, pos, SEEK_SET);
1397 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1400 MXFContext *mxf = s->priv_data;
1401 MXFStreamContext *sc = st->priv_data;
1403 uint8_t* header_cid;
1404 unsigned int frame_size = 0;
1406 if (mxf->header_written)
1412 header_cid = pkt->data + 0x28;
1413 cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1415 if ((i = ff_dnxhd_get_cid_table(cid)) < 0)
1421 sc->component_depth = 10;
1431 sc->component_depth = 10;
1441 sc->component_depth = 10;
1456 frame_size = ff_dnxhd_cid_table[i].frame_size;
1457 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1458 sc->aspect_ratio = (AVRational){ 16, 9 };
1460 mxf->edit_unit_byte_count = KAG_SIZE;
1461 for (i = 0; i < s->nb_streams; i++) {
1462 AVStream *st = s->streams[i];
1463 MXFStreamContext *sc = st->priv_data;
1464 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1465 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1466 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1467 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1468 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1469 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1476 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1478 MXFContext *mxf = s->priv_data;
1479 MXFStreamContext *sc = st->priv_data;
1480 uint8_t *vs_pack, *vsc_pack;
1481 int i, ul_index, frame_size, stype, pal;
1483 if (mxf->header_written)
1486 // Check for minimal frame size
1487 if (pkt->size < 120000)
1490 vs_pack = pkt->data + 80*5 + 48;
1491 vsc_pack = pkt->data + 80*5 + 53;
1492 stype = vs_pack[3] & 0x1f;
1493 pal = (vs_pack[3] >> 5) & 0x1;
1495 if ((vs_pack[2] & 0x07) == 0x02)
1496 sc->aspect_ratio = (AVRational){ 16, 9 };
1498 sc->aspect_ratio = (AVRational){ 4, 3 };
1500 sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1501 // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1502 // and set field dominance accordingly
1503 // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1506 case 0x18: // DV100 720p
1508 frame_size = pal ? 288000 : 240000;
1509 if (sc->interlaced) {
1510 av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1514 case 0x14: // DV100 1080i
1516 frame_size = pal ? 576000 : 480000;
1520 frame_size = pal ? 288000 : 240000;
1524 frame_size = pal ? 144000 : 120000;
1527 sc->index = ul_index + 16;
1528 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1530 mxf->edit_unit_byte_count = KAG_SIZE;
1531 for (i = 0; i < s->nb_streams; i++) {
1532 AVStream *st = s->streams[i];
1533 MXFStreamContext *sc = st->priv_data;
1534 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1535 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1536 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1537 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1538 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1539 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1546 static const UID mxf_mpeg2_codec_uls[] = {
1547 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1548 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1549 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1550 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1551 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1552 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1553 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1554 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1555 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1556 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1559 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1561 int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1563 if (avctx->profile == 4) { // Main
1564 if (avctx->level == 8) // Main
1565 return &mxf_mpeg2_codec_uls[0+long_gop];
1566 else if (avctx->level == 4) // High
1567 return &mxf_mpeg2_codec_uls[4+long_gop];
1568 else if (avctx->level == 6) // High 14
1569 return &mxf_mpeg2_codec_uls[8+long_gop];
1570 } else if (avctx->profile == 0) { // 422
1571 if (avctx->level == 5) // Main
1572 return &mxf_mpeg2_codec_uls[2+long_gop];
1573 else if (avctx->level == 2) // High
1574 return &mxf_mpeg2_codec_uls[6+long_gop];
1579 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1580 AVPacket *pkt, MXFIndexEntry *e)
1582 MXFStreamContext *sc = st->priv_data;
1586 for(i = 0; i < pkt->size - 4; i++) {
1587 c = (c<<8) + pkt->data[i];
1589 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1590 st->codec->profile = pkt->data[i+1] & 0x07;
1591 st->codec->level = pkt->data[i+2] >> 4;
1592 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1593 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1595 sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1598 } else if (c == 0x1b8) { // gop
1599 if (pkt->data[i+4]>>6 & 0x01) { // closed
1601 if (e->flags & 0x40) // sequence header present
1602 e->flags |= 0x80; // random access
1604 } else if (c == 0x1b3) { // seq
1606 switch ((pkt->data[i+4]>>4) & 0xf) {
1607 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1608 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1609 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1611 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1612 st->codec->width, st->codec->height, 1024*1024);
1614 } else if (c == 0x100) { // pic
1615 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1616 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1617 if (pict_type == 2) { // P frame
1619 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1620 } else if (pict_type == 3) { // B frame
1622 e->flags |= 0x13; // only backward prediction
1625 sc->temporal_reordering = -1;
1626 } else if (!pict_type) {
1627 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1632 if (s->oformat != &ff_mxf_d10_muxer)
1633 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1634 return !!sc->codec_ul;
1637 static uint64_t mxf_parse_timestamp(time_t timestamp)
1639 struct tm *time = gmtime(×tamp);
1642 return (uint64_t)(time->tm_year+1900) << 48 |
1643 (uint64_t)(time->tm_mon+1) << 40 |
1644 (uint64_t) time->tm_mday << 32 |
1645 time->tm_hour << 24 |
1646 time->tm_min << 16 |
1650 static void mxf_gen_umid(AVFormatContext *s)
1652 MXFContext *mxf = s->priv_data;
1653 uint32_t seed = av_get_random_seed();
1654 uint64_t umid = seed + 0x5294713400000000LL;
1656 AV_WB64(mxf->umid , umid);
1657 AV_WB64(mxf->umid+8, umid>>8);
1659 mxf->instance_number = seed;
1662 static int mxf_write_header(AVFormatContext *s)
1664 MXFContext *mxf = s->priv_data;
1666 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1667 const MXFSamplesPerFrame *spf = NULL;
1668 AVDictionaryEntry *t;
1669 int64_t timestamp = 0;
1670 AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1675 for (i = 0; i < s->nb_streams; i++) {
1676 AVStream *st = s->streams[i];
1677 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1679 return AVERROR(ENOMEM);
1682 if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1683 av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1687 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1688 AVRational rate, tbc = st->codec->time_base;
1689 // Default component depth to 8
1690 sc->component_depth = 8;
1691 mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1692 spf = ff_mxf_get_samples_per_frame(s, tbc);
1694 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1696 return AVERROR(EINVAL);
1698 mxf->time_base = spf->time_base;
1699 rate = av_inv_q(mxf->time_base);
1700 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1702 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1704 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1706 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1709 if (s->oformat == &ff_mxf_d10_muxer) {
1710 if (st->codec->bit_rate == 50000000) {
1711 if (mxf->time_base.den == 25) sc->index = 3;
1713 } else if (st->codec->bit_rate == 40000000) {
1714 if (mxf->time_base.den == 25) sc->index = 7;
1716 } else if (st->codec->bit_rate == 30000000) {
1717 if (mxf->time_base.den == 25) sc->index = 11;
1718 else sc->index = 13;
1720 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1724 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1725 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1726 mxf->time_base.num / (8*mxf->time_base.den);
1727 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1728 mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
1729 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1731 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1732 if (st->codec->sample_rate != 48000) {
1733 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1736 avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1737 if (s->oformat == &ff_mxf_d10_muxer) {
1738 if (st->index != 1) {
1739 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1742 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1743 st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
1744 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1746 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1748 mxf->slice_count = 1;
1752 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1753 if (sc->index == -1) {
1754 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1755 "codec not currently supported in container\n", i);
1760 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1762 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1763 sc->track_essence_element_key[15] = present[sc->index];
1764 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1766 if (!present[sc->index])
1767 mxf->essence_container_count++;
1768 present[sc->index]++;
1771 if (s->oformat == &ff_mxf_d10_muxer) {
1772 mxf->essence_container_count = 1;
1775 if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1778 for (i = 0; i < s->nb_streams; i++) {
1779 MXFStreamContext *sc = s->streams[i]->priv_data;
1780 // update element count
1781 sc->track_essence_element_key[13] = present[sc->index];
1782 if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1783 sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1785 sc->order = AV_RB32(sc->track_essence_element_key+12);
1788 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1789 timestamp = ff_iso8601_to_unix_time(t->value);
1791 mxf->timestamp = mxf_parse_timestamp(timestamp);
1794 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1795 if (!mxf->timecode_track)
1796 return AVERROR(ENOMEM);
1797 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1798 if (!mxf->timecode_track->priv_data)
1799 return AVERROR(ENOMEM);
1800 mxf->timecode_track->index = -1;
1803 spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
1805 if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
1811 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1812 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 };
1814 static void mxf_write_system_item(AVFormatContext *s)
1816 MXFContext *mxf = s->priv_data;
1817 AVIOContext *pb = s->pb;
1821 frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1823 // write system metadata pack
1824 avio_write(pb, system_metadata_pack_key, 16);
1825 klv_encode_ber4_length(pb, 57);
1826 avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1827 avio_w8(pb, 0x04); // content package rate
1828 avio_w8(pb, 0x00); // content package type
1829 avio_wb16(pb, 0x00); // channel handle
1830 avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
1831 if (mxf->essence_container_count > 1)
1832 avio_write(pb, multiple_desc_ul, 16);
1834 MXFStreamContext *sc = s->streams[0]->priv_data;
1835 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1839 avio_wb64(pb, 0); // creation date/time stamp
1841 avio_w8(pb, 0x81); // SMPTE 12M time code
1842 time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1843 avio_wb32(pb, time_code);
1844 avio_wb32(pb, 0); // binary group data
1847 // write system metadata package set
1848 avio_write(pb, system_metadata_package_set_key, 16);
1849 klv_encode_ber4_length(pb, 35);
1850 avio_w8(pb, 0x83); // UMID
1851 avio_wb16(pb, 0x20);
1852 mxf_write_umid(s, 1);
1855 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1857 MXFContext *mxf = s->priv_data;
1858 AVIOContext *pb = s->pb;
1859 int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1860 (8*mxf->time_base.den); // frame size
1863 packet_size += 16 + 4;
1864 packet_size += klv_fill_size(packet_size);
1866 klv_encode_ber4_length(pb, pkt->size);
1867 avio_write(pb, pkt->data, pkt->size);
1869 // ensure CBR muxing by padding to correct video frame size
1870 pad = packet_size - pkt->size - 16 - 4;
1872 avio_write(s->pb, klv_fill_key, 16);
1874 klv_encode_ber4_length(s->pb, pad);
1877 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1879 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1880 for (; pad > 0; pad--)
1885 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1887 MXFContext *mxf = s->priv_data;
1888 AVIOContext *pb = s->pb;
1889 int frame_size = pkt->size / st->codec->block_align;
1890 uint8_t *samples = pkt->data;
1891 uint8_t *end = pkt->data + pkt->size;
1894 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1896 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1897 avio_wl16(pb, frame_size);
1898 avio_w8(pb, (1<<st->codec->channels)-1);
1900 while (samples < end) {
1901 for (i = 0; i < st->codec->channels; i++) {
1903 if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
1904 sample = AV_RL24(samples)<< 4;
1907 sample = AV_RL16(samples)<<12;
1910 avio_wl32(pb, sample | i);
1917 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1919 MXFContext *mxf = s->priv_data;
1920 AVIOContext *pb = s->pb;
1921 AVStream *st = s->streams[pkt->stream_index];
1922 MXFStreamContext *sc = st->priv_data;
1923 MXFIndexEntry ie = {0};
1925 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1926 mxf->index_entries = av_realloc(mxf->index_entries,
1927 (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1928 if (!mxf->index_entries) {
1929 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1934 if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1935 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1936 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1939 } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
1940 if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1941 av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1944 } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
1945 if (!mxf_parse_dv_frame(s, st, pkt)) {
1946 av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1951 if (!mxf->header_written) {
1952 if (mxf->edit_unit_byte_count) {
1953 mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1954 mxf_write_klv_fill(s);
1955 mxf_write_index_table_segment(s);
1957 mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1959 mxf->header_written = 1;
1962 if (st->index == 0) {
1963 if (!mxf->edit_unit_byte_count &&
1964 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1965 !(ie.flags & 0x33)) { // I frame, Gop start
1966 mxf_write_klv_fill(s);
1967 mxf_write_partition(s, 1, 2, body_partition_key, 0);
1969 mxf_write_klv_fill(s);
1970 mxf_write_index_table_segment(s);
1973 mxf_write_klv_fill(s);
1974 mxf_write_system_item(s);
1976 if (!mxf->edit_unit_byte_count) {
1977 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1978 mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
1979 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
1980 mxf->body_offset += KAG_SIZE; // size of system element
1982 mxf->edit_units_count++;
1983 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1984 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1985 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1988 mxf_write_klv_fill(s);
1989 avio_write(pb, sc->track_essence_element_key, 16); // write key
1990 if (s->oformat == &ff_mxf_d10_muxer) {
1991 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1992 mxf_write_d10_video_packet(s, st, pkt);
1994 mxf_write_d10_audio_packet(s, st, pkt);
1996 klv_encode_ber4_length(pb, pkt->size); // write length
1997 avio_write(pb, pkt->data, pkt->size);
1998 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2006 static void mxf_write_random_index_pack(AVFormatContext *s)
2008 MXFContext *mxf = s->priv_data;
2009 AVIOContext *pb = s->pb;
2010 uint64_t pos = avio_tell(pb);
2013 avio_write(pb, random_index_pack_key, 16);
2014 klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2016 if (mxf->edit_unit_byte_count)
2017 avio_wb32(pb, 1); // BodySID of header partition
2020 avio_wb64(pb, 0); // offset of header partition
2022 for (i = 0; i < mxf->body_partitions_count; i++) {
2023 avio_wb32(pb, 1); // BodySID
2024 avio_wb64(pb, mxf->body_partition_offset[i]);
2027 avio_wb32(pb, 0); // BodySID of footer partition
2028 avio_wb64(pb, mxf->footer_partition_offset);
2030 avio_wb32(pb, avio_tell(pb) - pos + 4);
2033 static int mxf_write_footer(AVFormatContext *s)
2035 MXFContext *mxf = s->priv_data;
2036 AVIOContext *pb = s->pb;
2038 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2040 mxf_write_klv_fill(s);
2041 mxf->footer_partition_offset = avio_tell(pb);
2042 if (mxf->edit_unit_byte_count) { // no need to repeat index
2043 mxf_write_partition(s, 0, 0, footer_partition_key, 0);
2045 mxf_write_partition(s, 0, 2, footer_partition_key, 0);
2047 mxf_write_klv_fill(s);
2048 mxf_write_index_table_segment(s);
2051 mxf_write_klv_fill(s);
2052 mxf_write_random_index_pack(s);
2054 if (s->pb->seekable) {
2055 avio_seek(pb, 0, SEEK_SET);
2056 if (mxf->edit_unit_byte_count) {
2057 mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
2058 mxf_write_klv_fill(s);
2059 mxf_write_index_table_segment(s);
2061 mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
2065 ff_audio_interleave_close(s);
2067 av_freep(&mxf->index_entries);
2068 av_freep(&mxf->body_partition_offset);
2069 av_freep(&mxf->timecode_track->priv_data);
2070 av_freep(&mxf->timecode_track);
2077 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2079 int i, stream_count = 0;
2081 for (i = 0; i < s->nb_streams; i++)
2082 stream_count += !!s->streams[i]->last_in_packet_buffer;
2084 if (stream_count && (s->nb_streams == stream_count || flush)) {
2085 AVPacketList *pktl = s->packet_buffer;
2086 if (s->nb_streams != stream_count) {
2087 AVPacketList *last = NULL;
2088 // find last packet in edit unit
2090 if (!stream_count || pktl->pkt.stream_index == 0)
2096 // purge packet queue
2098 AVPacketList *next = pktl->next;
2100 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2101 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2102 av_free_packet(&pktl->pkt);
2109 s->packet_buffer = NULL;
2110 s->packet_buffer_end= NULL;
2113 pktl = s->packet_buffer;
2117 av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2118 s->packet_buffer = pktl->next;
2119 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2120 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2121 if(!s->packet_buffer)
2122 s->packet_buffer_end= NULL;
2127 av_init_packet(out);
2132 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2134 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
2135 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2137 return next->dts > pkt->dts ||
2138 (next->dts == pkt->dts && sc->order < sc2->order);
2141 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2143 return ff_audio_rechunk_interleave(s, out, pkt, flush,
2144 mxf_interleave_get_packet, mxf_compare_timestamps);
2147 AVOutputFormat ff_mxf_muxer = {
2149 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2150 .mime_type = "application/mxf",
2151 .extensions = "mxf",
2152 .priv_data_size = sizeof(MXFContext),
2153 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2154 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2155 .write_header = mxf_write_header,
2156 .write_packet = mxf_write_packet,
2157 .write_trailer = mxf_write_footer,
2158 .flags = AVFMT_NOTIMESTAMPS,
2159 .interleave_packet = mxf_interleave,
2162 AVOutputFormat ff_mxf_d10_muxer = {
2164 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2165 .mime_type = "application/mxf",
2166 .priv_data_size = sizeof(MXFContext),
2167 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2168 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2169 .write_header = mxf_write_header,
2170 .write_packet = mxf_write_packet,
2171 .write_trailer = mxf_write_footer,
2172 .flags = AVFMT_NOTIMESTAMPS,
2173 .interleave_packet = mxf_interleave,