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"
45 #include "avio_internal.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
86 void (*write_desc)(AVFormatContext *, AVStream *);
87 } MXFContainerEssenceEntry;
92 } mxf_essence_mappings[] = {
93 { AV_CODEC_ID_MPEG2VIDEO, 0 },
94 { AV_CODEC_ID_PCM_S24LE, 1 },
95 { AV_CODEC_ID_PCM_S16LE, 1 },
96 { AV_CODEC_ID_DVVIDEO, 15 },
97 { AV_CODEC_ID_DNXHD, 24 },
101 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
102 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
103 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
104 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
105 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
107 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
108 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
109 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
110 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
111 mxf_write_mpegvideo_desc },
112 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
113 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
114 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
115 mxf_write_aes3_desc },
116 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
117 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
118 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
119 mxf_write_wav_desc },
120 // D-10 625/50 PAL 50mb/s
121 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
122 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
123 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
124 mxf_write_cdci_desc },
125 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
126 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
127 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
128 mxf_write_generic_sound_desc },
129 // D-10 525/60 NTSC 50mb/s
130 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
131 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
132 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
133 mxf_write_cdci_desc },
134 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
135 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
136 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
137 mxf_write_generic_sound_desc },
138 // D-10 625/50 PAL 40mb/s
139 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
140 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
141 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
142 mxf_write_cdci_desc },
143 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
144 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
145 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
146 mxf_write_generic_sound_desc },
147 // D-10 525/60 NTSC 40mb/s
148 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
149 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
150 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
151 mxf_write_cdci_desc },
152 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
153 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
154 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
155 mxf_write_generic_sound_desc },
156 // D-10 625/50 PAL 30mb/s
157 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
158 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
159 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
160 mxf_write_cdci_desc },
161 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
162 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
163 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
164 mxf_write_generic_sound_desc },
165 // D-10 525/60 NTSC 30mb/s
166 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
167 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
168 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
169 mxf_write_cdci_desc },
170 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
171 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
172 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
173 mxf_write_generic_sound_desc },
175 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
176 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
177 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
178 mxf_write_cdci_desc },
180 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
181 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
182 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
183 mxf_write_cdci_desc },
185 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
186 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
187 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
188 mxf_write_cdci_desc },
190 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
191 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
192 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
193 mxf_write_cdci_desc },
195 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
196 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
197 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
198 mxf_write_cdci_desc },
200 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
201 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
202 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
203 mxf_write_cdci_desc },
205 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
206 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
207 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
208 mxf_write_cdci_desc },
210 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
211 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
212 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
213 mxf_write_cdci_desc },
215 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
216 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
217 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
218 mxf_write_cdci_desc },
219 // DNxHD 1080p 10bit high
220 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
221 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
222 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
223 mxf_write_cdci_desc },
224 // DNxHD 1080p 8bit medium
225 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
226 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
227 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
228 mxf_write_cdci_desc },
229 // DNxHD 1080p 8bit high
230 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
231 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
232 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
233 mxf_write_cdci_desc },
234 // DNxHD 1080i 10bit high
235 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
236 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
237 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
238 mxf_write_cdci_desc },
239 // DNxHD 1080i 8bit medium
240 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
241 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
242 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
243 mxf_write_cdci_desc },
244 // DNxHD 1080i 8bit high
245 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
246 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
247 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
248 mxf_write_cdci_desc },
250 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
251 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
252 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
253 mxf_write_cdci_desc },
254 // DNxHD 720p 8bit high
255 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
256 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
257 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
258 mxf_write_cdci_desc },
259 // DNxHD 720p 8bit medium
260 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
261 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
262 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
263 mxf_write_cdci_desc },
264 // DNxHD 720p 8bit low
265 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
266 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
267 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
268 mxf_write_cdci_desc },
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 },
271 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
275 typedef struct MXFContext {
277 int64_t footer_partition_offset;
278 int essence_container_count;
279 AVRational time_base;
281 MXFIndexEntry *index_entries;
282 unsigned edit_units_count;
283 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
284 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
285 int last_indexed_edit_unit;
286 uint64_t *body_partition_offset;
287 unsigned body_partitions_count;
288 int last_key_index; ///< index of last key frame
290 AVTimecode tc; ///< timecode context
291 AVStream *timecode_track;
292 int timecode_base; ///< rounded time code base (25 or 30)
293 int edit_unit_byte_count; ///< fixed edit unit byte count
294 uint64_t body_offset;
295 uint32_t instance_number;
296 uint8_t umid[16]; ///< unique material identifier
299 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
300 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
303 * complete key for operation pattern, partitions, and primer pack
305 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
306 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
307 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
308 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
309 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
310 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
311 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
312 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
313 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
316 * partial key for header metadata
318 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
319 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
322 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
324 static const MXFLocalTagPair mxf_local_tag_batch[] = {
326 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
327 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
328 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
329 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
330 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
331 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
332 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
333 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
335 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
336 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
337 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
338 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
339 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
340 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
342 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
343 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
344 // Essence Container Data
345 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
346 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
348 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
349 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
350 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
351 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
352 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
354 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
355 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
356 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
357 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
358 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
360 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
361 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
362 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
364 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
365 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
366 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
367 // Timecode Component
368 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
369 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
370 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
372 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
373 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
374 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
375 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
376 // Generic Picture Essence Descriptor
377 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
378 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
379 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
380 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
381 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
382 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
383 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
384 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
385 { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
386 // CDCI Picture Essence Descriptor
387 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
388 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
389 // Generic Sound Essence Descriptor
390 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
391 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
392 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
393 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
394 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
395 // Index Table Segment
396 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
397 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
398 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
399 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
400 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
401 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
402 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
403 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
404 // MPEG video Descriptor
405 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
406 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
407 // Wave Audio Essence Descriptor
408 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
409 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
412 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
414 avio_write(pb, uuid_base, 12);
416 avio_wb16(pb, value);
419 static void mxf_write_umid(AVFormatContext *s, int type)
421 MXFContext *mxf = s->priv_data;
422 avio_write(s->pb, umid_ul, 13);
423 avio_wb24(s->pb, mxf->instance_number);
424 avio_write(s->pb, mxf->umid, 15);
425 avio_w8(s->pb, type);
428 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
430 avio_wb32(pb, ref_count);
434 static int klv_ber_length(uint64_t len)
439 return (av_log2(len) >> 3) + 2;
442 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
444 // Determine the best BER size
452 size = (av_log2(len) >> 3) + 1;
455 avio_w8(pb, 0x80 + size);
458 avio_w8(pb, len >> 8 * size & 0xff);
463 static void klv_encode_ber4_length(AVIOContext *pb, int len)
465 avio_w8(pb, 0x80 + 3);
470 * Get essence container ul index
472 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
475 for (i = 0; mxf_essence_mappings[i].id; i++)
476 if (mxf_essence_mappings[i].id == id)
477 return mxf_essence_mappings[i].index;
481 static void mxf_write_primer_pack(AVFormatContext *s)
483 AVIOContext *pb = s->pb;
484 int local_tag_number, i = 0;
486 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
488 avio_write(pb, primer_pack_key, 16);
489 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
491 avio_wb32(pb, local_tag_number); // local_tag num
492 avio_wb32(pb, 18); // item size, always 18 according to the specs
494 for (i = 0; i < local_tag_number; i++) {
495 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
496 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
500 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
506 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
508 avio_write(pb, header_metadata_key, 13);
509 avio_wb24(pb, value);
512 static void mxf_free(AVFormatContext *s)
516 for (i = 0; i < s->nb_streams; i++) {
517 AVStream *st = s->streams[i];
518 av_freep(&st->priv_data);
522 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
524 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
525 while (uls->uid[0]) {
533 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
534 #define DESCRIPTOR_COUNT(essence_container_count) \
535 (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
537 static void mxf_write_essence_container_refs(AVFormatContext *s)
539 MXFContext *c = s->priv_data;
540 AVIOContext *pb = s->pb;
543 mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
544 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
545 for (i = 0; i < c->essence_container_count; i++) {
546 MXFStreamContext *sc = s->streams[i]->priv_data;
547 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
550 if (c->essence_container_count > 1)
551 avio_write(pb, multiple_desc_ul, 16);
554 static void mxf_write_preface(AVFormatContext *s)
556 MXFContext *mxf = s->priv_data;
557 AVIOContext *pb = s->pb;
559 mxf_write_metadata_key(pb, 0x012f00);
560 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
561 klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
563 // write preface set uid
564 mxf_write_local_tag(pb, 16, 0x3C0A);
565 mxf_write_uuid(pb, Preface, 0);
566 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
568 // last modified date
569 mxf_write_local_tag(pb, 8, 0x3B02);
570 avio_wb64(pb, mxf->timestamp);
573 mxf_write_local_tag(pb, 2, 0x3B05);
574 avio_wb16(pb, 258); // v1.2
576 // write identification_refs
577 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
578 mxf_write_refs_count(pb, 1);
579 mxf_write_uuid(pb, Identification, 0);
581 // write content_storage_refs
582 mxf_write_local_tag(pb, 16, 0x3B03);
583 mxf_write_uuid(pb, ContentStorage, 0);
585 // operational pattern
586 mxf_write_local_tag(pb, 16, 0x3B09);
587 avio_write(pb, op1a_ul, 16);
589 // write essence_container_refs
590 mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
591 mxf_write_essence_container_refs(s);
593 // write dm_scheme_refs
594 mxf_write_local_tag(pb, 8, 0x3B0B);
599 * Write a local tag containing an ascii string as utf-16
601 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
603 int i, size = strlen(value);
604 mxf_write_local_tag(pb, size*2, tag);
605 for (i = 0; i < size; i++)
606 avio_wb16(pb, value[i]);
609 static void mxf_write_identification(AVFormatContext *s)
611 MXFContext *mxf = s->priv_data;
612 AVIOContext *pb = s->pb;
613 const char *company = "FFmpeg";
614 const char *product = "OP1a Muxer";
618 mxf_write_metadata_key(pb, 0x013000);
619 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
621 version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
622 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
623 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
624 klv_encode_ber_length(pb, length);
627 mxf_write_local_tag(pb, 16, 0x3C0A);
628 mxf_write_uuid(pb, Identification, 0);
629 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
631 // write generation uid
632 mxf_write_local_tag(pb, 16, 0x3C09);
633 mxf_write_uuid(pb, Identification, 1);
635 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
636 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
637 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
640 mxf_write_local_tag(pb, 16, 0x3C05);
641 mxf_write_uuid(pb, Identification, 2);
644 mxf_write_local_tag(pb, 8, 0x3C06);
645 avio_wb64(pb, mxf->timestamp);
648 static void mxf_write_content_storage(AVFormatContext *s)
650 AVIOContext *pb = s->pb;
652 mxf_write_metadata_key(pb, 0x011800);
653 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
654 klv_encode_ber_length(pb, 92);
657 mxf_write_local_tag(pb, 16, 0x3C0A);
658 mxf_write_uuid(pb, ContentStorage, 0);
659 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
661 // write package reference
662 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
663 mxf_write_refs_count(pb, 2);
664 mxf_write_uuid(pb, MaterialPackage, 0);
665 mxf_write_uuid(pb, SourcePackage, 0);
667 // write essence container data
668 mxf_write_local_tag(pb, 8 + 16, 0x1902);
669 mxf_write_refs_count(pb, 1);
670 mxf_write_uuid(pb, EssenceContainerData, 0);
673 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
675 MXFContext *mxf = s->priv_data;
676 AVIOContext *pb = s->pb;
677 MXFStreamContext *sc = st->priv_data;
679 mxf_write_metadata_key(pb, 0x013b00);
680 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
681 klv_encode_ber_length(pb, 80);
684 mxf_write_local_tag(pb, 16, 0x3C0A);
685 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
686 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
689 mxf_write_local_tag(pb, 4, 0x4801);
690 avio_wb32(pb, st->index+2);
692 // write track number
693 mxf_write_local_tag(pb, 4, 0x4804);
694 if (type == MaterialPackage)
695 avio_wb32(pb, 0); // track number of material package is 0
697 avio_write(pb, sc->track_essence_element_key + 12, 4);
699 mxf_write_local_tag(pb, 8, 0x4B01);
700 avio_wb32(pb, mxf->time_base.den);
701 avio_wb32(pb, mxf->time_base.num);
704 mxf_write_local_tag(pb, 8, 0x4B02);
707 // write sequence refs
708 mxf_write_local_tag(pb, 16, 0x4803);
709 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
712 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 };
714 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
716 MXFContext *mxf = s->priv_data;
717 AVIOContext *pb = s->pb;
719 // find data define uls
720 mxf_write_local_tag(pb, 16, 0x0201);
721 if (st == mxf->timecode_track)
722 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
724 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
725 avio_write(pb, data_def_ul->uid, 16);
729 mxf_write_local_tag(pb, 8, 0x0202);
730 avio_wb64(pb, mxf->duration);
733 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
735 MXFContext *mxf = s->priv_data;
736 AVIOContext *pb = s->pb;
737 enum MXFMetadataSetType component;
739 mxf_write_metadata_key(pb, 0x010f00);
740 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
741 klv_encode_ber_length(pb, 80);
743 mxf_write_local_tag(pb, 16, 0x3C0A);
744 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
746 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
747 mxf_write_common_fields(s, st);
749 // write structural component
750 mxf_write_local_tag(pb, 16 + 8, 0x1001);
751 mxf_write_refs_count(pb, 1);
752 if (st == mxf->timecode_track)
753 component = TimecodeComponent;
755 component = SourceClip;
756 if (type == SourcePackage)
757 component += TypeBottom;
758 mxf_write_uuid(pb, component, st->index);
761 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
763 MXFContext *mxf = s->priv_data;
764 AVIOContext *pb = s->pb;
766 mxf_write_metadata_key(pb, 0x011400);
767 klv_encode_ber_length(pb, 75);
770 mxf_write_local_tag(pb, 16, 0x3C0A);
771 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
772 TimecodeComponent + TypeBottom, st->index);
774 mxf_write_common_fields(s, st);
777 mxf_write_local_tag(pb, 8, 0x1501);
778 avio_wb64(pb, mxf->tc.start);
780 // Rounded Time Code Base
781 mxf_write_local_tag(pb, 2, 0x1502);
782 avio_wb16(pb, mxf->timecode_base);
785 mxf_write_local_tag(pb, 1, 0x1503);
786 avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
789 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
791 AVIOContext *pb = s->pb;
794 mxf_write_metadata_key(pb, 0x011100);
795 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
796 klv_encode_ber_length(pb, 108);
799 mxf_write_local_tag(pb, 16, 0x3C0A);
800 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
802 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
803 mxf_write_common_fields(s, st);
805 // write start_position
806 mxf_write_local_tag(pb, 8, 0x1201);
809 // write source package uid, end of the reference
810 mxf_write_local_tag(pb, 32, 0x1101);
811 if (type == SourcePackage) {
812 for (i = 0; i < 4; i++)
815 mxf_write_umid(s, 1);
817 // write source track id
818 mxf_write_local_tag(pb, 4, 0x1102);
819 if (type == SourcePackage)
822 avio_wb32(pb, st->index+2);
825 static void mxf_write_multi_descriptor(AVFormatContext *s)
827 MXFContext *mxf = s->priv_data;
828 AVIOContext *pb = s->pb;
832 mxf_write_metadata_key(pb, 0x014400);
833 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
834 klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
836 mxf_write_local_tag(pb, 16, 0x3C0A);
837 mxf_write_uuid(pb, MultipleDescriptor, 0);
838 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
841 mxf_write_local_tag(pb, 8, 0x3001);
842 avio_wb32(pb, mxf->time_base.den);
843 avio_wb32(pb, mxf->time_base.num);
845 // write essence container ul
846 mxf_write_local_tag(pb, 16, 0x3004);
847 if (mxf->essence_container_count > 1)
848 ul = multiple_desc_ul;
850 MXFStreamContext *sc = s->streams[0]->priv_data;
851 ul = mxf_essence_container_uls[sc->index].container_ul;
853 avio_write(pb, ul, 16);
855 // write sub descriptor refs
856 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
857 mxf_write_refs_count(pb, s->nb_streams);
858 for (i = 0; i < s->nb_streams; i++)
859 mxf_write_uuid(pb, SubDescriptor, i);
862 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
864 MXFContext *mxf = s->priv_data;
865 MXFStreamContext *sc = st->priv_data;
866 AVIOContext *pb = s->pb;
868 avio_write(pb, key, 16);
869 klv_encode_ber4_length(pb, size+20+8+12+20);
871 mxf_write_local_tag(pb, 16, 0x3C0A);
872 mxf_write_uuid(pb, SubDescriptor, st->index);
874 mxf_write_local_tag(pb, 4, 0x3006);
875 avio_wb32(pb, st->index+2);
877 mxf_write_local_tag(pb, 8, 0x3001);
878 avio_wb32(pb, mxf->time_base.den);
879 avio_wb32(pb, mxf->time_base.num);
881 mxf_write_local_tag(pb, 16, 0x3004);
882 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
885 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
886 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
887 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
888 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
889 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
891 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
893 MXFStreamContext *sc = st->priv_data;
894 AVIOContext *pb = s->pb;
895 int stored_height = (st->codec->height+15)/16*16;
898 unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
899 if (sc->interlaced && sc->field_dominance)
902 mxf_write_generic_desc(s, st, key, desc_size);
904 mxf_write_local_tag(pb, 4, 0x3203);
905 avio_wb32(pb, st->codec->width);
907 mxf_write_local_tag(pb, 4, 0x3202);
908 avio_wb32(pb, stored_height>>sc->interlaced);
910 mxf_write_local_tag(pb, 4, 0x3209);
911 avio_wb32(pb, st->codec->width);
913 if (st->codec->height == 608) // PAL + VBI
914 display_height = 576;
915 else if (st->codec->height == 512) // NTSC + VBI
916 display_height = 486;
918 display_height = st->codec->height;
920 mxf_write_local_tag(pb, 4, 0x3208);
921 avio_wb32(pb, display_height>>sc->interlaced);
924 mxf_write_local_tag(pb, 4, 0x3301);
925 avio_wb32(pb, sc->component_depth);
927 // horizontal subsampling
928 mxf_write_local_tag(pb, 4, 0x3302);
932 mxf_write_local_tag(pb, 1, 0x320C);
933 avio_w8(pb, sc->interlaced);
936 switch (st->codec->height) {
937 case 576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
938 case 608: f1 = 7; f2 = 320; break;
939 case 480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
940 case 512: f1 = 7; f2 = 270; break;
941 case 720: f1 = 26; f2 = 0; break; // progressive
942 case 1080: f1 = 21; f2 = 584; break;
943 default: f1 = 0; f2 = 0; break;
946 if (!sc->interlaced) {
951 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
952 avio_wb32(pb, sc->interlaced ? 2 : 1);
958 mxf_write_local_tag(pb, 8, 0x320E);
959 avio_wb32(pb, sc->aspect_ratio.num);
960 avio_wb32(pb, sc->aspect_ratio.den);
962 mxf_write_local_tag(pb, 16, 0x3201);
963 avio_write(pb, *sc->codec_ul, 16);
965 if (sc->interlaced && sc->field_dominance) {
966 mxf_write_local_tag(pb, 1, 0x3212);
967 avio_w8(pb, sc->field_dominance);
972 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
974 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
977 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
979 AVIOContext *pb = s->pb;
980 MXFStreamContext *sc = st->priv_data;
981 int profile_and_level = (st->codec->profile<<4) | st->codec->level;
983 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
986 mxf_write_local_tag(pb, 4, 0x8000);
987 avio_wb32(pb, sc->video_bit_rate);
990 mxf_write_local_tag(pb, 1, 0x8007);
991 if (!st->codec->profile)
992 profile_and_level |= 0x80; // escape bit
993 avio_w8(pb, profile_and_level);
996 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
998 AVIOContext *pb = s->pb;
1000 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
1003 mxf_write_local_tag(pb, 1, 0x3D02);
1006 // write audio sampling rate
1007 mxf_write_local_tag(pb, 8, 0x3D03);
1008 avio_wb32(pb, st->codec->sample_rate);
1011 mxf_write_local_tag(pb, 4, 0x3D07);
1012 avio_wb32(pb, st->codec->channels);
1014 mxf_write_local_tag(pb, 4, 0x3D01);
1015 avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1018 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1020 AVIOContext *pb = s->pb;
1022 mxf_write_generic_sound_common(s, st, key, size+6+8);
1024 mxf_write_local_tag(pb, 2, 0x3D0A);
1025 avio_wb16(pb, st->codec->block_align);
1027 // avg bytes per sec
1028 mxf_write_local_tag(pb, 4, 0x3D09);
1029 avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1032 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1034 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1037 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1039 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1042 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1044 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1047 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
1049 MXFContext *mxf = s->priv_data;
1050 AVIOContext *pb = s->pb;
1051 int i, track_count = s->nb_streams+1;
1053 if (type == MaterialPackage) {
1054 mxf_write_metadata_key(pb, 0x013600);
1055 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1056 klv_encode_ber_length(pb, 92 + 16*track_count);
1058 mxf_write_metadata_key(pb, 0x013700);
1059 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1060 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1064 mxf_write_local_tag(pb, 16, 0x3C0A);
1065 mxf_write_uuid(pb, type, 0);
1066 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1067 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1069 // write package umid
1070 mxf_write_local_tag(pb, 32, 0x4401);
1071 mxf_write_umid(s, type == SourcePackage);
1072 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1074 // package creation date
1075 mxf_write_local_tag(pb, 8, 0x4405);
1076 avio_wb64(pb, mxf->timestamp);
1078 // package modified date
1079 mxf_write_local_tag(pb, 8, 0x4404);
1080 avio_wb64(pb, mxf->timestamp);
1083 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1084 mxf_write_refs_count(pb, track_count);
1085 mxf_write_uuid(pb, type == MaterialPackage ? Track :
1086 Track + TypeBottom, -1); // timecode track
1087 for (i = 0; i < s->nb_streams; i++)
1088 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1090 // write multiple descriptor reference
1091 if (type == SourcePackage) {
1092 mxf_write_local_tag(pb, 16, 0x4701);
1093 if (s->nb_streams > 1) {
1094 mxf_write_uuid(pb, MultipleDescriptor, 0);
1095 mxf_write_multi_descriptor(s);
1097 mxf_write_uuid(pb, SubDescriptor, 0);
1100 // write timecode track
1101 mxf_write_track(s, mxf->timecode_track, type);
1102 mxf_write_sequence(s, mxf->timecode_track, type);
1103 mxf_write_timecode_component(s, mxf->timecode_track, type);
1105 for (i = 0; i < s->nb_streams; i++) {
1106 AVStream *st = s->streams[i];
1107 mxf_write_track(s, st, type);
1108 mxf_write_sequence(s, st, type);
1109 mxf_write_structural_component(s, st, type);
1111 if (type == SourcePackage) {
1112 MXFStreamContext *sc = st->priv_data;
1113 mxf_essence_container_uls[sc->index].write_desc(s, st);
1118 static int mxf_write_essence_container_data(AVFormatContext *s)
1120 AVIOContext *pb = s->pb;
1122 mxf_write_metadata_key(pb, 0x012300);
1123 klv_encode_ber_length(pb, 72);
1125 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1126 mxf_write_uuid(pb, EssenceContainerData, 0);
1128 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1129 mxf_write_umid(s, 1);
1131 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1134 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1140 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1142 mxf_write_preface(s);
1143 mxf_write_identification(s);
1144 mxf_write_content_storage(s);
1145 mxf_write_package(s, MaterialPackage);
1146 mxf_write_package(s, SourcePackage);
1147 mxf_write_essence_container_data(s);
1151 static unsigned klv_fill_size(uint64_t size)
1153 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1154 if (pad < 20) // smallest fill item possible
1155 return pad + KAG_SIZE;
1157 return pad & (KAG_SIZE-1);
1160 static void mxf_write_index_table_segment(AVFormatContext *s)
1162 MXFContext *mxf = s->priv_data;
1163 AVIOContext *pb = s->pb;
1164 int i, j, temporal_reordering = 0;
1165 int key_index = mxf->last_key_index;
1167 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1169 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1172 avio_write(pb, index_table_segment_key, 16);
1174 if (mxf->edit_unit_byte_count) {
1175 klv_encode_ber_length(pb, 80);
1177 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1178 12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1182 mxf_write_local_tag(pb, 16, 0x3C0A);
1183 mxf_write_uuid(pb, IndexTableSegment, 0);
1186 mxf_write_local_tag(pb, 8, 0x3F0B);
1187 avio_wb32(pb, mxf->time_base.den);
1188 avio_wb32(pb, mxf->time_base.num);
1190 // index start position
1191 mxf_write_local_tag(pb, 8, 0x3F0C);
1192 avio_wb64(pb, mxf->last_indexed_edit_unit);
1195 mxf_write_local_tag(pb, 8, 0x3F0D);
1196 if (mxf->edit_unit_byte_count)
1197 avio_wb64(pb, 0); // index table covers whole container
1199 avio_wb64(pb, mxf->edit_units_count);
1201 // edit unit byte count
1202 mxf_write_local_tag(pb, 4, 0x3F05);
1203 avio_wb32(pb, mxf->edit_unit_byte_count);
1206 mxf_write_local_tag(pb, 4, 0x3F06);
1210 mxf_write_local_tag(pb, 4, 0x3F07);
1213 if (!mxf->edit_unit_byte_count) {
1214 // real slice count - 1
1215 mxf_write_local_tag(pb, 1, 0x3F08);
1216 avio_w8(pb, mxf->slice_count);
1218 // delta entry array
1219 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1220 avio_wb32(pb, s->nb_streams+1); // num of entries
1221 avio_wb32(pb, 6); // size of one entry
1222 // write system item delta entry
1224 avio_w8(pb, 0); // slice entry
1225 avio_wb32(pb, 0); // element delta
1226 for (i = 0; i < s->nb_streams; i++) {
1227 AVStream *st = s->streams[i];
1228 MXFStreamContext *sc = st->priv_data;
1229 avio_w8(pb, sc->temporal_reordering);
1230 if (sc->temporal_reordering)
1231 temporal_reordering = 1;
1232 if (i == 0) { // video track
1233 avio_w8(pb, 0); // slice number
1234 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1235 } else { // audio track
1236 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1237 audio_frame_size += klv_fill_size(audio_frame_size);
1239 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1243 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1244 avio_wb32(pb, mxf->edit_units_count); // num of entries
1245 avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1247 for (i = 0; i < mxf->edit_units_count; i++) {
1248 int temporal_offset = 0;
1250 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1251 mxf->last_key_index = key_index;
1255 if (temporal_reordering) {
1256 int pic_num_in_gop = i - key_index;
1257 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1258 for (j = key_index; j < mxf->edit_units_count; j++) {
1259 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1262 if (j == mxf->edit_units_count)
1263 av_log(s, AV_LOG_WARNING, "missing frames\n");
1264 temporal_offset = j - key_index - pic_num_in_gop;
1267 avio_w8(pb, temporal_offset);
1269 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1270 avio_w8(pb, mxf->last_key_index - i);
1272 avio_w8(pb, key_index - i); // key frame offset
1273 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1274 mxf->last_key_index = key_index;
1277 if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1278 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1279 mxf->index_entries[i].flags |= 0x80; // random access
1280 avio_w8(pb, mxf->index_entries[i].flags);
1282 avio_wb64(pb, mxf->index_entries[i].offset);
1283 if (s->nb_streams > 1)
1284 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1287 mxf->last_key_index = key_index - mxf->edit_units_count;
1288 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1289 mxf->edit_units_count = 0;
1293 static void mxf_write_klv_fill(AVFormatContext *s)
1295 unsigned pad = klv_fill_size(avio_tell(s->pb));
1297 avio_write(s->pb, klv_fill_key, 16);
1299 klv_encode_ber4_length(s->pb, pad);
1300 ffio_fill(s->pb, 0, pad);
1301 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1305 static int mxf_write_partition(AVFormatContext *s, int bodysid,
1307 const uint8_t *key, int write_metadata)
1309 MXFContext *mxf = s->priv_data;
1310 AVIOContext *pb = s->pb;
1311 int64_t header_byte_count_offset;
1312 unsigned index_byte_count = 0;
1313 uint64_t partition_offset = avio_tell(pb);
1316 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1317 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1318 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1319 else if (mxf->edit_unit_byte_count && indexsid)
1320 index_byte_count = 80;
1322 if (index_byte_count) {
1323 // add encoded ber length
1324 index_byte_count += 16 + klv_ber_length(index_byte_count);
1325 index_byte_count += klv_fill_size(index_byte_count);
1328 if (!memcmp(key, body_partition_key, 16)) {
1329 if ((err = av_reallocp_array(&mxf->body_partition_offset, mxf->body_partitions_count + 1,
1330 sizeof(*mxf->body_partition_offset))) < 0) {
1331 mxf->body_partitions_count = 0;
1334 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1338 avio_write(pb, key, 16);
1339 klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1341 // write partition value
1342 avio_wb16(pb, 1); // majorVersion
1343 avio_wb16(pb, 2); // minorVersion
1344 avio_wb32(pb, KAG_SIZE); // KAGSize
1346 avio_wb64(pb, partition_offset); // ThisPartition
1348 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1349 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1350 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1351 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1355 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1358 header_byte_count_offset = avio_tell(pb);
1359 avio_wb64(pb, 0); // headerByteCount, update later
1362 avio_wb64(pb, index_byte_count); // indexByteCount
1363 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1366 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1367 avio_wb64(pb, mxf->body_offset);
1371 avio_wb32(pb, bodysid); // bodySID
1373 // operational pattern
1374 avio_write(pb, op1a_ul, 16);
1376 // essence container
1377 mxf_write_essence_container_refs(s);
1379 if (write_metadata) {
1380 // mark the start of the headermetadata and calculate metadata size
1382 unsigned header_byte_count;
1384 mxf_write_klv_fill(s);
1385 start = avio_tell(s->pb);
1386 mxf_write_primer_pack(s);
1387 mxf_write_header_metadata_sets(s);
1388 pos = avio_tell(s->pb);
1389 header_byte_count = pos - start + klv_fill_size(pos);
1391 // update header_byte_count
1392 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1393 avio_wb64(pb, header_byte_count);
1394 avio_seek(pb, pos, SEEK_SET);
1402 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1405 MXFContext *mxf = s->priv_data;
1406 MXFStreamContext *sc = st->priv_data;
1408 uint8_t* header_cid;
1411 if (mxf->header_written)
1417 header_cid = pkt->data + 0x28;
1418 cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1420 if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
1426 sc->component_depth = 10;
1436 sc->component_depth = 10;
1446 sc->component_depth = 10;
1461 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1462 sc->aspect_ratio = (AVRational){ 16, 9 };
1464 mxf->edit_unit_byte_count = KAG_SIZE;
1465 for (i = 0; i < s->nb_streams; i++) {
1466 AVStream *st = s->streams[i];
1467 MXFStreamContext *sc = st->priv_data;
1468 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1469 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1470 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1471 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1472 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1473 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1480 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1482 MXFContext *mxf = s->priv_data;
1483 MXFStreamContext *sc = st->priv_data;
1484 uint8_t *vs_pack, *vsc_pack;
1485 int i, ul_index, frame_size, stype, pal;
1487 if (mxf->header_written)
1490 // Check for minimal frame size
1491 if (pkt->size < 120000)
1494 vs_pack = pkt->data + 80*5 + 48;
1495 vsc_pack = pkt->data + 80*5 + 53;
1496 stype = vs_pack[3] & 0x1f;
1497 pal = (vs_pack[3] >> 5) & 0x1;
1499 if ((vs_pack[2] & 0x07) == 0x02)
1500 sc->aspect_ratio = (AVRational){ 16, 9 };
1502 sc->aspect_ratio = (AVRational){ 4, 3 };
1504 sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1505 // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1506 // and set field dominance accordingly
1507 // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1510 case 0x18: // DV100 720p
1512 frame_size = pal ? 288000 : 240000;
1513 if (sc->interlaced) {
1514 av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1518 case 0x14: // DV100 1080i
1520 frame_size = pal ? 576000 : 480000;
1524 frame_size = pal ? 288000 : 240000;
1528 frame_size = pal ? 144000 : 120000;
1531 sc->index = ul_index + 16;
1532 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1534 mxf->edit_unit_byte_count = KAG_SIZE;
1535 for (i = 0; i < s->nb_streams; i++) {
1536 AVStream *st = s->streams[i];
1537 MXFStreamContext *sc = st->priv_data;
1538 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1539 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1540 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1541 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1542 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1543 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1550 static const UID mxf_mpeg2_codec_uls[] = {
1551 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1552 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1553 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1554 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1555 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1556 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1557 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1558 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1559 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1560 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1563 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1565 int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1567 if (avctx->profile == 4) { // Main
1568 if (avctx->level == 8) // Main
1569 return &mxf_mpeg2_codec_uls[0+long_gop];
1570 else if (avctx->level == 4) // High
1571 return &mxf_mpeg2_codec_uls[4+long_gop];
1572 else if (avctx->level == 6) // High 14
1573 return &mxf_mpeg2_codec_uls[8+long_gop];
1574 } else if (avctx->profile == 0) { // 422
1575 if (avctx->level == 5) // Main
1576 return &mxf_mpeg2_codec_uls[2+long_gop];
1577 else if (avctx->level == 2) // High
1578 return &mxf_mpeg2_codec_uls[6+long_gop];
1583 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1584 AVPacket *pkt, MXFIndexEntry *e)
1586 MXFStreamContext *sc = st->priv_data;
1590 for(i = 0; i < pkt->size - 4; i++) {
1591 c = (c<<8) + pkt->data[i];
1593 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1594 st->codec->profile = pkt->data[i+1] & 0x07;
1595 st->codec->level = pkt->data[i+2] >> 4;
1596 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1597 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1599 sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1602 } else if (c == 0x1b8) { // gop
1603 if (pkt->data[i+4]>>6 & 0x01) { // closed
1605 if (e->flags & 0x40) // sequence header present
1606 e->flags |= 0x80; // random access
1608 } else if (c == 0x1b3) { // seq
1610 switch ((pkt->data[i+4]>>4) & 0xf) {
1611 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1612 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1613 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1615 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1616 st->codec->width, st->codec->height, 1024*1024);
1618 } else if (c == 0x100) { // pic
1619 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1620 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1621 if (pict_type == 2) { // P frame
1623 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1624 } else if (pict_type == 3) { // B frame
1626 e->flags |= 0x13; // only backward prediction
1629 sc->temporal_reordering = -1;
1630 } else if (!pict_type) {
1631 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1636 if (s->oformat != &ff_mxf_d10_muxer)
1637 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1638 return !!sc->codec_ul;
1641 static uint64_t mxf_parse_timestamp(time_t timestamp)
1643 struct tm *time = gmtime(×tamp);
1646 return (uint64_t)(time->tm_year+1900) << 48 |
1647 (uint64_t)(time->tm_mon+1) << 40 |
1648 (uint64_t) time->tm_mday << 32 |
1649 time->tm_hour << 24 |
1650 time->tm_min << 16 |
1654 static void mxf_gen_umid(AVFormatContext *s)
1656 MXFContext *mxf = s->priv_data;
1657 uint32_t seed = av_get_random_seed();
1658 uint64_t umid = seed + 0x5294713400000000LL;
1660 AV_WB64(mxf->umid , umid);
1661 AV_WB64(mxf->umid+8, umid>>8);
1663 mxf->instance_number = seed & 0xFFFFFF;
1666 static int mxf_write_header(AVFormatContext *s)
1668 MXFContext *mxf = s->priv_data;
1670 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1671 const MXFSamplesPerFrame *spf = NULL;
1672 AVDictionaryEntry *t;
1673 int64_t timestamp = 0;
1674 AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1679 for (i = 0; i < s->nb_streams; i++) {
1680 AVStream *st = s->streams[i];
1681 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1683 return AVERROR(ENOMEM);
1686 if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1687 av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1691 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1692 AVRational rate, tbc = st->codec->time_base;
1693 // Default component depth to 8
1694 sc->component_depth = 8;
1695 mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1696 spf = ff_mxf_get_samples_per_frame(s, tbc);
1698 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1700 return AVERROR(EINVAL);
1702 mxf->time_base = spf->time_base;
1703 rate = av_inv_q(mxf->time_base);
1704 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1706 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1708 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1710 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1713 sc->video_bit_rate = st->codec->bit_rate ? st->codec->bit_rate : st->codec->rc_max_rate;
1714 if (s->oformat == &ff_mxf_d10_muxer) {
1715 if (sc->video_bit_rate == 50000000) {
1716 if (mxf->time_base.den == 25) sc->index = 3;
1718 } else if (sc->video_bit_rate == 40000000) {
1719 if (mxf->time_base.den == 25) sc->index = 7;
1721 } else if (sc->video_bit_rate == 30000000) {
1722 if (mxf->time_base.den == 25) sc->index = 11;
1723 else sc->index = 13;
1725 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1729 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1730 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)sc->video_bit_rate *
1731 mxf->time_base.num / (8*mxf->time_base.den);
1732 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1733 mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
1734 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1736 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1737 if (st->codec->sample_rate != 48000) {
1738 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1741 avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1742 if (s->oformat == &ff_mxf_d10_muxer) {
1743 if (st->index != 1) {
1744 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1747 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1748 st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
1749 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1751 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1753 mxf->slice_count = 1;
1757 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1758 if (sc->index == -1) {
1759 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1760 "codec not currently supported in container\n", i);
1765 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1767 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1768 sc->track_essence_element_key[15] = present[sc->index];
1769 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1771 if (!present[sc->index])
1772 mxf->essence_container_count++;
1773 present[sc->index]++;
1776 if (s->oformat == &ff_mxf_d10_muxer) {
1777 mxf->essence_container_count = 1;
1780 if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1783 for (i = 0; i < s->nb_streams; i++) {
1784 MXFStreamContext *sc = s->streams[i]->priv_data;
1785 // update element count
1786 sc->track_essence_element_key[13] = present[sc->index];
1787 if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1788 sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1790 sc->order = AV_RB32(sc->track_essence_element_key+12);
1793 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1794 timestamp = ff_iso8601_to_unix_time(t->value);
1796 mxf->timestamp = mxf_parse_timestamp(timestamp);
1799 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1800 if (!mxf->timecode_track)
1801 return AVERROR(ENOMEM);
1802 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1803 if (!mxf->timecode_track->priv_data)
1804 return AVERROR(ENOMEM);
1805 mxf->timecode_track->index = -1;
1808 spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
1810 if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
1816 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1817 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 };
1819 static void mxf_write_system_item(AVFormatContext *s)
1821 MXFContext *mxf = s->priv_data;
1822 AVIOContext *pb = s->pb;
1826 frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1828 // write system metadata pack
1829 avio_write(pb, system_metadata_pack_key, 16);
1830 klv_encode_ber4_length(pb, 57);
1831 avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1832 avio_w8(pb, 0x04); // content package rate
1833 avio_w8(pb, 0x00); // content package type
1834 avio_wb16(pb, 0x00); // channel handle
1835 avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
1836 if (mxf->essence_container_count > 1)
1837 avio_write(pb, multiple_desc_ul, 16);
1839 MXFStreamContext *sc = s->streams[0]->priv_data;
1840 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1844 avio_wb64(pb, 0); // creation date/time stamp
1846 avio_w8(pb, 0x81); // SMPTE 12M time code
1847 time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1848 avio_wb32(pb, time_code);
1849 avio_wb32(pb, 0); // binary group data
1852 // write system metadata package set
1853 avio_write(pb, system_metadata_package_set_key, 16);
1854 klv_encode_ber4_length(pb, 35);
1855 avio_w8(pb, 0x83); // UMID
1856 avio_wb16(pb, 0x20);
1857 mxf_write_umid(s, 1);
1860 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1862 MXFContext *mxf = s->priv_data;
1863 AVIOContext *pb = s->pb;
1864 MXFStreamContext *sc = st->priv_data;
1865 int packet_size = (uint64_t)sc->video_bit_rate*mxf->time_base.num /
1866 (8*mxf->time_base.den); // frame size
1869 packet_size += 16 + 4;
1870 packet_size += klv_fill_size(packet_size);
1872 klv_encode_ber4_length(pb, pkt->size);
1873 avio_write(pb, pkt->data, pkt->size);
1875 // ensure CBR muxing by padding to correct video frame size
1876 pad = packet_size - pkt->size - 16 - 4;
1878 avio_write(s->pb, klv_fill_key, 16);
1880 klv_encode_ber4_length(s->pb, pad);
1881 ffio_fill(s->pb, 0, pad);
1882 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1884 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1885 ffio_fill(s->pb, 0, pad);
1889 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1891 MXFContext *mxf = s->priv_data;
1892 AVIOContext *pb = s->pb;
1893 int frame_size = pkt->size / st->codec->block_align;
1894 uint8_t *samples = pkt->data;
1895 uint8_t *end = pkt->data + pkt->size;
1898 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1900 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1901 avio_wl16(pb, frame_size);
1902 avio_w8(pb, (1<<st->codec->channels)-1);
1904 while (samples < end) {
1905 for (i = 0; i < st->codec->channels; i++) {
1907 if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
1908 sample = AV_RL24(samples)<< 4;
1911 sample = AV_RL16(samples)<<12;
1914 avio_wl32(pb, sample | i);
1921 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1923 MXFContext *mxf = s->priv_data;
1924 AVIOContext *pb = s->pb;
1925 AVStream *st = s->streams[pkt->stream_index];
1926 MXFStreamContext *sc = st->priv_data;
1927 MXFIndexEntry ie = {0};
1930 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1931 if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
1932 + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
1933 mxf->edit_units_count = 0;
1934 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1939 if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1940 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1941 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1944 } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
1945 if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1946 av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1949 } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
1950 if (!mxf_parse_dv_frame(s, st, pkt)) {
1951 av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1956 if (!mxf->header_written) {
1957 if (mxf->edit_unit_byte_count) {
1958 if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
1960 mxf_write_klv_fill(s);
1961 mxf_write_index_table_segment(s);
1963 if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
1966 mxf->header_written = 1;
1969 if (st->index == 0) {
1970 if (!mxf->edit_unit_byte_count &&
1971 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1972 !(ie.flags & 0x33)) { // I frame, Gop start
1973 mxf_write_klv_fill(s);
1974 if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
1976 mxf_write_klv_fill(s);
1977 mxf_write_index_table_segment(s);
1980 mxf_write_klv_fill(s);
1981 mxf_write_system_item(s);
1983 if (!mxf->edit_unit_byte_count) {
1984 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1985 mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
1986 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
1987 mxf->body_offset += KAG_SIZE; // size of system element
1989 mxf->edit_units_count++;
1990 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1991 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1992 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1995 mxf_write_klv_fill(s);
1996 avio_write(pb, sc->track_essence_element_key, 16); // write key
1997 if (s->oformat == &ff_mxf_d10_muxer) {
1998 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1999 mxf_write_d10_video_packet(s, st, pkt);
2001 mxf_write_d10_audio_packet(s, st, pkt);
2003 klv_encode_ber4_length(pb, pkt->size); // write length
2004 avio_write(pb, pkt->data, pkt->size);
2005 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2013 static void mxf_write_random_index_pack(AVFormatContext *s)
2015 MXFContext *mxf = s->priv_data;
2016 AVIOContext *pb = s->pb;
2017 uint64_t pos = avio_tell(pb);
2020 avio_write(pb, random_index_pack_key, 16);
2021 klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2023 if (mxf->edit_unit_byte_count)
2024 avio_wb32(pb, 1); // BodySID of header partition
2027 avio_wb64(pb, 0); // offset of header partition
2029 for (i = 0; i < mxf->body_partitions_count; i++) {
2030 avio_wb32(pb, 1); // BodySID
2031 avio_wb64(pb, mxf->body_partition_offset[i]);
2034 avio_wb32(pb, 0); // BodySID of footer partition
2035 avio_wb64(pb, mxf->footer_partition_offset);
2037 avio_wb32(pb, avio_tell(pb) - pos + 4);
2040 static int mxf_write_footer(AVFormatContext *s)
2042 MXFContext *mxf = s->priv_data;
2043 AVIOContext *pb = s->pb;
2046 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2048 mxf_write_klv_fill(s);
2049 mxf->footer_partition_offset = avio_tell(pb);
2050 if (mxf->edit_unit_byte_count) { // no need to repeat index
2051 if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
2054 if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
2056 mxf_write_klv_fill(s);
2057 mxf_write_index_table_segment(s);
2060 mxf_write_klv_fill(s);
2061 mxf_write_random_index_pack(s);
2063 if (s->pb->seekable) {
2064 avio_seek(pb, 0, SEEK_SET);
2065 if (mxf->edit_unit_byte_count) {
2066 if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
2068 mxf_write_klv_fill(s);
2069 mxf_write_index_table_segment(s);
2071 if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
2076 ff_audio_interleave_close(s);
2078 av_freep(&mxf->index_entries);
2079 av_freep(&mxf->body_partition_offset);
2080 av_freep(&mxf->timecode_track->priv_data);
2081 av_freep(&mxf->timecode_track);
2088 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2090 int i, stream_count = 0;
2092 for (i = 0; i < s->nb_streams; i++)
2093 stream_count += !!s->streams[i]->last_in_packet_buffer;
2095 if (stream_count && (s->nb_streams == stream_count || flush)) {
2096 AVPacketList *pktl = s->packet_buffer;
2097 if (s->nb_streams != stream_count) {
2098 AVPacketList *last = NULL;
2099 // find last packet in edit unit
2101 if (!stream_count || pktl->pkt.stream_index == 0)
2107 // purge packet queue
2109 AVPacketList *next = pktl->next;
2111 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2112 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2113 av_free_packet(&pktl->pkt);
2120 s->packet_buffer = NULL;
2121 s->packet_buffer_end= NULL;
2124 pktl = s->packet_buffer;
2128 av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2129 s->packet_buffer = pktl->next;
2130 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2131 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2132 if(!s->packet_buffer)
2133 s->packet_buffer_end= NULL;
2138 av_init_packet(out);
2143 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2145 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
2146 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2148 return next->dts > pkt->dts ||
2149 (next->dts == pkt->dts && sc->order < sc2->order);
2152 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2154 return ff_audio_rechunk_interleave(s, out, pkt, flush,
2155 mxf_interleave_get_packet, mxf_compare_timestamps);
2158 AVOutputFormat ff_mxf_muxer = {
2160 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2161 .mime_type = "application/mxf",
2162 .extensions = "mxf",
2163 .priv_data_size = sizeof(MXFContext),
2164 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2165 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2166 .write_header = mxf_write_header,
2167 .write_packet = mxf_write_packet,
2168 .write_trailer = mxf_write_footer,
2169 .flags = AVFMT_NOTIMESTAMPS,
2170 .interleave_packet = mxf_interleave,
2173 AVOutputFormat ff_mxf_d10_muxer = {
2175 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2176 .mime_type = "application/mxf",
2177 .priv_data_size = sizeof(MXFContext),
2178 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2179 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2180 .write_header = mxf_write_header,
2181 .write_packet = mxf_write_packet,
2182 .write_trailer = mxf_write_footer,
2183 .flags = AVFMT_NOTIMESTAMPS,
2184 .interleave_packet = mxf_interleave,