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 static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 };
51 static const int NTSC_60_samples_per_frame[] = { 801, 801, 801, 801, 800, 0 };
52 static const int PAL_samples_per_frame[] = { 1920, 0 };
53 static const int PAL_50_samples_per_frame[] = { 960, 0 };
55 extern AVOutputFormat ff_mxf_d10_muxer;
57 #define EDIT_UNITS_PER_BODY 250
68 unsigned slice_offset; ///< offset of audio slice
69 uint16_t temporal_ref;
73 AudioInterleaveContext aic;
74 UID track_essence_element_key;
75 int index; ///< index in mxf_essence_container_uls table
77 int order; ///< interleaving order if dts are equal
78 int interlaced; ///< whether picture is interlaced
79 int field_dominance; ///< tff=1, bff=2
81 int temporal_reordering;
82 AVRational aspect_ratio; ///< display aspect ratio
83 int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
90 void (*write_desc)(AVFormatContext *, AVStream *);
91 } MXFContainerEssenceEntry;
96 } mxf_essence_mappings[] = {
97 { AV_CODEC_ID_MPEG2VIDEO, 0 },
98 { AV_CODEC_ID_PCM_S24LE, 1 },
99 { AV_CODEC_ID_PCM_S16LE, 1 },
100 { AV_CODEC_ID_DVVIDEO, 15 },
101 { AV_CODEC_ID_DNXHD, 24 },
105 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
106 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
107 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
108 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
109 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
111 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
112 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
113 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
114 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
115 mxf_write_mpegvideo_desc },
116 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
117 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
118 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
119 mxf_write_aes3_desc },
120 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
121 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
122 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
123 mxf_write_wav_desc },
124 // D-10 625/50 PAL 50mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
127 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
128 mxf_write_cdci_desc },
129 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
130 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
131 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
132 mxf_write_generic_sound_desc },
133 // D-10 525/60 NTSC 50mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
136 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
137 mxf_write_cdci_desc },
138 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
139 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
140 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
141 mxf_write_generic_sound_desc },
142 // D-10 625/50 PAL 40mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
145 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
146 mxf_write_cdci_desc },
147 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
148 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
149 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
150 mxf_write_generic_sound_desc },
151 // D-10 525/60 NTSC 40mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
154 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
155 mxf_write_cdci_desc },
156 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
157 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
158 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
159 mxf_write_generic_sound_desc },
160 // D-10 625/50 PAL 30mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
163 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
164 mxf_write_cdci_desc },
165 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
166 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
167 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
168 mxf_write_generic_sound_desc },
169 // D-10 525/60 NTSC 30mb/s
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,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
172 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
173 mxf_write_cdci_desc },
174 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
175 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
176 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
177 mxf_write_generic_sound_desc },
179 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
180 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
181 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
182 mxf_write_cdci_desc },
184 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
185 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
186 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
187 mxf_write_cdci_desc },
189 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
190 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
191 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
192 mxf_write_cdci_desc },
194 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
195 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
196 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
197 mxf_write_cdci_desc },
199 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
200 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
201 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
202 mxf_write_cdci_desc },
204 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
205 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
206 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
207 mxf_write_cdci_desc },
209 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
210 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
211 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
212 mxf_write_cdci_desc },
214 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
215 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
216 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
217 mxf_write_cdci_desc },
219 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
220 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
221 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
222 mxf_write_cdci_desc },
223 // DNxHD 1080p 10bit high
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,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
227 mxf_write_cdci_desc },
228 // DNxHD 1080p 8bit medium
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,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
232 mxf_write_cdci_desc },
233 // DNxHD 1080p 8bit 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,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
237 mxf_write_cdci_desc },
238 // DNxHD 1080i 10bit high
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,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
242 mxf_write_cdci_desc },
243 // DNxHD 1080i 8bit medium
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,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
247 mxf_write_cdci_desc },
248 // DNxHD 1080i 8bit high
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,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
252 mxf_write_cdci_desc },
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,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
257 mxf_write_cdci_desc },
258 // DNxHD 720p 8bit high
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,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
262 mxf_write_cdci_desc },
263 // DNxHD 720p 8bit medium
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,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
267 mxf_write_cdci_desc },
268 // DNxHD 720p 8bit low
269 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
270 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
271 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
272 mxf_write_cdci_desc },
273 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
274 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
275 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
279 typedef struct MXFContext {
281 int64_t footer_partition_offset;
282 int essence_container_count;
283 AVRational time_base;
285 MXFIndexEntry *index_entries;
286 unsigned edit_units_count;
287 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
288 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
289 int last_indexed_edit_unit;
290 uint64_t *body_partition_offset;
291 unsigned body_partitions_count;
292 int last_key_index; ///< index of last key frame
294 AVTimecode tc; ///< timecode context
295 AVStream *timecode_track;
296 int timecode_base; ///< rounded time code base (25 or 30)
297 int edit_unit_byte_count; ///< fixed edit unit byte count
298 uint64_t body_offset;
299 uint32_t instance_number;
300 uint8_t umid[16]; ///< unique material identifier
303 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
304 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
307 * complete key for operation pattern, partitions, and primer pack
309 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
310 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
311 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
312 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
313 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
314 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
315 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
316 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
317 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
320 * partial key for header metadata
322 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
323 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
326 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
328 static const MXFLocalTagPair mxf_local_tag_batch[] = {
330 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
331 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
332 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
333 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
334 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
335 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
336 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
337 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
339 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
340 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
341 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
342 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
343 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
344 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
346 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
347 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
348 // Essence Container Data
349 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
350 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
352 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
353 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
354 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
355 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
356 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
358 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
359 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
360 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
361 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
362 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
364 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
365 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
366 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
368 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
369 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
370 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
371 // Timecode Component
372 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
373 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
374 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
376 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
377 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
378 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
379 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
380 // Generic Picture Essence Descriptor
381 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
382 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
383 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
384 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
385 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
386 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
387 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
388 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
389 { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
390 // CDCI Picture Essence Descriptor
391 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
392 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
393 // Generic Sound Essence Descriptor
394 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
395 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
396 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
397 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
398 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
399 // Index Table Segment
400 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
401 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
402 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
403 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
404 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
405 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
406 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
407 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
408 // MPEG video Descriptor
409 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
410 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
411 // Wave Audio Essence Descriptor
412 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
413 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
416 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
418 avio_write(pb, uuid_base, 12);
420 avio_wb16(pb, value);
423 static void mxf_write_umid(AVFormatContext *s, int type)
425 MXFContext *mxf = s->priv_data;
426 avio_write(s->pb, umid_ul, 13);
427 avio_wb24(s->pb, mxf->instance_number);
428 avio_write(s->pb, mxf->umid, 15);
429 avio_w8(s->pb, type);
432 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
434 avio_wb32(pb, ref_count);
438 static int klv_ber_length(uint64_t len)
443 return (av_log2(len) >> 3) + 2;
446 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
448 // Determine the best BER size
456 size = (av_log2(len) >> 3) + 1;
459 avio_w8(pb, 0x80 + size);
462 avio_w8(pb, len >> 8 * size & 0xff);
467 static void klv_encode_ber4_length(AVIOContext *pb, int len)
469 avio_w8(pb, 0x80 + 3);
474 * Get essence container ul index
476 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
479 for (i = 0; mxf_essence_mappings[i].id; i++)
480 if (mxf_essence_mappings[i].id == id)
481 return mxf_essence_mappings[i].index;
485 static void mxf_write_primer_pack(AVFormatContext *s)
487 AVIOContext *pb = s->pb;
488 int local_tag_number, i = 0;
490 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
492 avio_write(pb, primer_pack_key, 16);
493 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
495 avio_wb32(pb, local_tag_number); // local_tag num
496 avio_wb32(pb, 18); // item size, always 18 according to the specs
498 for (i = 0; i < local_tag_number; i++) {
499 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
500 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
504 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
510 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
512 avio_write(pb, header_metadata_key, 13);
513 avio_wb24(pb, value);
516 static void mxf_free(AVFormatContext *s)
520 for (i = 0; i < s->nb_streams; i++) {
521 AVStream *st = s->streams[i];
522 av_freep(&st->priv_data);
526 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
528 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
529 while (uls->uid[0]) {
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, 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);
551 static void mxf_write_preface(AVFormatContext *s)
553 MXFContext *mxf = s->priv_data;
554 AVIOContext *pb = s->pb;
556 mxf_write_metadata_key(pb, 0x012f00);
557 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
558 klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count);
560 // write preface set uid
561 mxf_write_local_tag(pb, 16, 0x3C0A);
562 mxf_write_uuid(pb, Preface, 0);
563 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
565 // last modified date
566 mxf_write_local_tag(pb, 8, 0x3B02);
567 avio_wb64(pb, mxf->timestamp);
570 mxf_write_local_tag(pb, 2, 0x3B05);
571 avio_wb16(pb, 258); // v1.2
573 // write identification_refs
574 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
575 mxf_write_refs_count(pb, 1);
576 mxf_write_uuid(pb, Identification, 0);
578 // write content_storage_refs
579 mxf_write_local_tag(pb, 16, 0x3B03);
580 mxf_write_uuid(pb, ContentStorage, 0);
582 // operational pattern
583 mxf_write_local_tag(pb, 16, 0x3B09);
584 avio_write(pb, op1a_ul, 16);
586 // write essence_container_refs
587 mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A);
588 mxf_write_essence_container_refs(s);
590 // write dm_scheme_refs
591 mxf_write_local_tag(pb, 8, 0x3B0B);
596 * Write a local tag containing an ascii string as utf-16
598 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
600 int i, size = strlen(value);
601 mxf_write_local_tag(pb, size*2, tag);
602 for (i = 0; i < size; i++)
603 avio_wb16(pb, value[i]);
606 static void mxf_write_identification(AVFormatContext *s)
608 MXFContext *mxf = s->priv_data;
609 AVIOContext *pb = s->pb;
610 const char *company = "FFmpeg";
611 const char *product = "OP1a Muxer";
615 mxf_write_metadata_key(pb, 0x013000);
616 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
618 version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
619 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
620 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
621 klv_encode_ber_length(pb, length);
624 mxf_write_local_tag(pb, 16, 0x3C0A);
625 mxf_write_uuid(pb, Identification, 0);
626 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
628 // write generation uid
629 mxf_write_local_tag(pb, 16, 0x3C09);
630 mxf_write_uuid(pb, Identification, 1);
632 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
633 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
634 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
637 mxf_write_local_tag(pb, 16, 0x3C05);
638 mxf_write_uuid(pb, Identification, 2);
641 mxf_write_local_tag(pb, 8, 0x3C06);
642 avio_wb64(pb, mxf->timestamp);
645 static void mxf_write_content_storage(AVFormatContext *s)
647 AVIOContext *pb = s->pb;
649 mxf_write_metadata_key(pb, 0x011800);
650 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
651 klv_encode_ber_length(pb, 92);
654 mxf_write_local_tag(pb, 16, 0x3C0A);
655 mxf_write_uuid(pb, ContentStorage, 0);
656 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
658 // write package reference
659 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
660 mxf_write_refs_count(pb, 2);
661 mxf_write_uuid(pb, MaterialPackage, 0);
662 mxf_write_uuid(pb, SourcePackage, 0);
664 // write essence container data
665 mxf_write_local_tag(pb, 8 + 16, 0x1902);
666 mxf_write_refs_count(pb, 1);
667 mxf_write_uuid(pb, EssenceContainerData, 0);
670 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
672 MXFContext *mxf = s->priv_data;
673 AVIOContext *pb = s->pb;
674 MXFStreamContext *sc = st->priv_data;
676 mxf_write_metadata_key(pb, 0x013b00);
677 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
678 klv_encode_ber_length(pb, 80);
681 mxf_write_local_tag(pb, 16, 0x3C0A);
682 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
683 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
686 mxf_write_local_tag(pb, 4, 0x4801);
687 avio_wb32(pb, st->index+2);
689 // write track number
690 mxf_write_local_tag(pb, 4, 0x4804);
691 if (type == MaterialPackage)
692 avio_wb32(pb, 0); // track number of material package is 0
694 avio_write(pb, sc->track_essence_element_key + 12, 4);
696 mxf_write_local_tag(pb, 8, 0x4B01);
697 avio_wb32(pb, mxf->time_base.den);
698 avio_wb32(pb, mxf->time_base.num);
701 mxf_write_local_tag(pb, 8, 0x4B02);
704 // write sequence refs
705 mxf_write_local_tag(pb, 16, 0x4803);
706 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
709 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 };
711 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
713 MXFContext *mxf = s->priv_data;
714 AVIOContext *pb = s->pb;
716 // find data define uls
717 mxf_write_local_tag(pb, 16, 0x0201);
718 if (st == mxf->timecode_track)
719 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
721 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
722 avio_write(pb, data_def_ul->uid, 16);
726 mxf_write_local_tag(pb, 8, 0x0202);
727 avio_wb64(pb, mxf->duration);
730 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
732 MXFContext *mxf = s->priv_data;
733 AVIOContext *pb = s->pb;
734 enum MXFMetadataSetType component;
736 mxf_write_metadata_key(pb, 0x010f00);
737 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
738 klv_encode_ber_length(pb, 80);
740 mxf_write_local_tag(pb, 16, 0x3C0A);
741 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
743 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
744 mxf_write_common_fields(s, st);
746 // write structural component
747 mxf_write_local_tag(pb, 16 + 8, 0x1001);
748 mxf_write_refs_count(pb, 1);
749 if (st == mxf->timecode_track)
750 component = TimecodeComponent;
752 component = SourceClip;
753 if (type == SourcePackage)
754 component += TypeBottom;
755 mxf_write_uuid(pb, component, st->index);
758 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
760 MXFContext *mxf = s->priv_data;
761 AVIOContext *pb = s->pb;
763 mxf_write_metadata_key(pb, 0x011400);
764 klv_encode_ber_length(pb, 75);
767 mxf_write_local_tag(pb, 16, 0x3C0A);
768 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
769 TimecodeComponent + TypeBottom, st->index);
771 mxf_write_common_fields(s, st);
774 mxf_write_local_tag(pb, 8, 0x1501);
775 avio_wb64(pb, mxf->tc.start);
777 // Rounded Time Code Base
778 mxf_write_local_tag(pb, 2, 0x1502);
779 avio_wb16(pb, mxf->timecode_base);
782 mxf_write_local_tag(pb, 1, 0x1503);
783 avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
786 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
788 AVIOContext *pb = s->pb;
791 mxf_write_metadata_key(pb, 0x011100);
792 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
793 klv_encode_ber_length(pb, 108);
796 mxf_write_local_tag(pb, 16, 0x3C0A);
797 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
799 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
800 mxf_write_common_fields(s, st);
802 // write start_position
803 mxf_write_local_tag(pb, 8, 0x1201);
806 // write source package uid, end of the reference
807 mxf_write_local_tag(pb, 32, 0x1101);
808 if (type == SourcePackage) {
809 for (i = 0; i < 4; i++)
812 mxf_write_umid(s, 1);
814 // write source track id
815 mxf_write_local_tag(pb, 4, 0x1102);
816 if (type == SourcePackage)
819 avio_wb32(pb, st->index+2);
822 static void mxf_write_multi_descriptor(AVFormatContext *s)
824 MXFContext *mxf = s->priv_data;
825 AVIOContext *pb = s->pb;
829 mxf_write_metadata_key(pb, 0x014400);
830 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
831 klv_encode_ber_length(pb, 64 + 16 * s->nb_streams);
833 mxf_write_local_tag(pb, 16, 0x3C0A);
834 mxf_write_uuid(pb, MultipleDescriptor, 0);
835 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
838 mxf_write_local_tag(pb, 8, 0x3001);
839 avio_wb32(pb, mxf->time_base.den);
840 avio_wb32(pb, mxf->time_base.num);
842 // write essence container ul
843 mxf_write_local_tag(pb, 16, 0x3004);
844 if (mxf->essence_container_count > 1)
845 ul = multiple_desc_ul;
847 MXFStreamContext *sc = s->streams[0]->priv_data;
848 ul = mxf_essence_container_uls[sc->index].container_ul;
850 avio_write(pb, ul, 16);
852 // write sub descriptor refs
853 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
854 mxf_write_refs_count(pb, s->nb_streams);
855 for (i = 0; i < s->nb_streams; i++)
856 mxf_write_uuid(pb, SubDescriptor, i);
859 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
861 MXFContext *mxf = s->priv_data;
862 MXFStreamContext *sc = st->priv_data;
863 AVIOContext *pb = s->pb;
865 avio_write(pb, key, 16);
866 klv_encode_ber4_length(pb, size+20+8+12+20);
868 mxf_write_local_tag(pb, 16, 0x3C0A);
869 mxf_write_uuid(pb, SubDescriptor, st->index);
871 mxf_write_local_tag(pb, 4, 0x3006);
872 avio_wb32(pb, st->index+2);
874 mxf_write_local_tag(pb, 8, 0x3001);
875 avio_wb32(pb, mxf->time_base.den);
876 avio_wb32(pb, mxf->time_base.num);
878 mxf_write_local_tag(pb, 16, 0x3004);
879 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
882 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
883 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
884 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
885 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
886 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
888 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
890 MXFStreamContext *sc = st->priv_data;
891 AVIOContext *pb = s->pb;
892 int stored_height = (st->codec->height+15)/16*16;
895 unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
896 if (sc->interlaced && sc->field_dominance)
899 mxf_write_generic_desc(s, st, key, desc_size);
901 mxf_write_local_tag(pb, 4, 0x3203);
902 avio_wb32(pb, st->codec->width);
904 mxf_write_local_tag(pb, 4, 0x3202);
905 avio_wb32(pb, stored_height>>sc->interlaced);
907 mxf_write_local_tag(pb, 4, 0x3209);
908 avio_wb32(pb, st->codec->width);
910 if (st->codec->height == 608) // PAL + VBI
911 display_height = 576;
912 else if (st->codec->height == 512) // NTSC + VBI
913 display_height = 486;
915 display_height = st->codec->height;
917 mxf_write_local_tag(pb, 4, 0x3208);
918 avio_wb32(pb, display_height>>sc->interlaced);
921 mxf_write_local_tag(pb, 4, 0x3301);
922 avio_wb32(pb, sc->component_depth);
924 // horizontal subsampling
925 mxf_write_local_tag(pb, 4, 0x3302);
929 mxf_write_local_tag(pb, 1, 0x320C);
930 avio_w8(pb, sc->interlaced);
933 switch (st->codec->height) {
934 case 576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
935 case 608: f1 = 7; f2 = 320; break;
936 case 480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
937 case 512: f1 = 7; f2 = 270; break;
938 case 720: f1 = 26; f2 = 0; break; // progressive
939 case 1080: f1 = 21; f2 = 584; break;
940 default: f1 = 0; f2 = 0; break;
943 if (!sc->interlaced) {
948 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
949 avio_wb32(pb, sc->interlaced ? 2 : 1);
955 mxf_write_local_tag(pb, 8, 0x320E);
956 avio_wb32(pb, sc->aspect_ratio.num);
957 avio_wb32(pb, sc->aspect_ratio.den);
959 mxf_write_local_tag(pb, 16, 0x3201);
960 avio_write(pb, *sc->codec_ul, 16);
962 if (sc->interlaced && sc->field_dominance) {
963 mxf_write_local_tag(pb, 1, 0x3212);
964 avio_w8(pb, sc->field_dominance);
969 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
971 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
974 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
976 AVIOContext *pb = s->pb;
977 int profile_and_level = (st->codec->profile<<4) | st->codec->level;
979 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
982 mxf_write_local_tag(pb, 4, 0x8000);
983 avio_wb32(pb, st->codec->bit_rate);
986 mxf_write_local_tag(pb, 1, 0x8007);
987 if (!st->codec->profile)
988 profile_and_level |= 0x80; // escape bit
989 avio_w8(pb, profile_and_level);
992 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
994 AVIOContext *pb = s->pb;
996 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
999 mxf_write_local_tag(pb, 1, 0x3D02);
1002 // write audio sampling rate
1003 mxf_write_local_tag(pb, 8, 0x3D03);
1004 avio_wb32(pb, st->codec->sample_rate);
1007 mxf_write_local_tag(pb, 4, 0x3D07);
1008 avio_wb32(pb, st->codec->channels);
1010 mxf_write_local_tag(pb, 4, 0x3D01);
1011 avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1014 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1016 AVIOContext *pb = s->pb;
1018 mxf_write_generic_sound_common(s, st, key, size+6+8);
1020 mxf_write_local_tag(pb, 2, 0x3D0A);
1021 avio_wb16(pb, st->codec->block_align);
1023 // avg bytes per sec
1024 mxf_write_local_tag(pb, 4, 0x3D09);
1025 avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1028 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1030 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1033 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1035 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1038 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1040 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1043 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
1045 MXFContext *mxf = s->priv_data;
1046 AVIOContext *pb = s->pb;
1047 int i, track_count = s->nb_streams+1;
1049 if (type == MaterialPackage) {
1050 mxf_write_metadata_key(pb, 0x013600);
1051 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1052 klv_encode_ber_length(pb, 92 + 16*track_count);
1054 mxf_write_metadata_key(pb, 0x013700);
1055 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1056 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1060 mxf_write_local_tag(pb, 16, 0x3C0A);
1061 mxf_write_uuid(pb, type, 0);
1062 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1063 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1065 // write package umid
1066 mxf_write_local_tag(pb, 32, 0x4401);
1067 mxf_write_umid(s, type == SourcePackage);
1068 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1070 // package creation date
1071 mxf_write_local_tag(pb, 8, 0x4405);
1072 avio_wb64(pb, mxf->timestamp);
1074 // package modified date
1075 mxf_write_local_tag(pb, 8, 0x4404);
1076 avio_wb64(pb, mxf->timestamp);
1079 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1080 mxf_write_refs_count(pb, track_count);
1081 mxf_write_uuid(pb, type == MaterialPackage ? Track :
1082 Track + TypeBottom, -1); // timecode track
1083 for (i = 0; i < s->nb_streams; i++)
1084 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1086 // write multiple descriptor reference
1087 if (type == SourcePackage) {
1088 mxf_write_local_tag(pb, 16, 0x4701);
1089 if (s->nb_streams > 1) {
1090 mxf_write_uuid(pb, MultipleDescriptor, 0);
1091 mxf_write_multi_descriptor(s);
1093 mxf_write_uuid(pb, SubDescriptor, 0);
1096 // write timecode track
1097 mxf_write_track(s, mxf->timecode_track, type);
1098 mxf_write_sequence(s, mxf->timecode_track, type);
1099 mxf_write_timecode_component(s, mxf->timecode_track, type);
1101 for (i = 0; i < s->nb_streams; i++) {
1102 AVStream *st = s->streams[i];
1103 mxf_write_track(s, st, type);
1104 mxf_write_sequence(s, st, type);
1105 mxf_write_structural_component(s, st, type);
1107 if (type == SourcePackage) {
1108 MXFStreamContext *sc = st->priv_data;
1109 mxf_essence_container_uls[sc->index].write_desc(s, st);
1114 static int mxf_write_essence_container_data(AVFormatContext *s)
1116 AVIOContext *pb = s->pb;
1118 mxf_write_metadata_key(pb, 0x012300);
1119 klv_encode_ber_length(pb, 72);
1121 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1122 mxf_write_uuid(pb, EssenceContainerData, 0);
1124 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1125 mxf_write_umid(s, 1);
1127 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1130 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1136 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1138 mxf_write_preface(s);
1139 mxf_write_identification(s);
1140 mxf_write_content_storage(s);
1141 mxf_write_package(s, MaterialPackage);
1142 mxf_write_package(s, SourcePackage);
1143 mxf_write_essence_container_data(s);
1147 static unsigned klv_fill_size(uint64_t size)
1149 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1150 if (pad < 20) // smallest fill item possible
1151 return pad + KAG_SIZE;
1153 return pad & (KAG_SIZE-1);
1156 static void mxf_write_index_table_segment(AVFormatContext *s)
1158 MXFContext *mxf = s->priv_data;
1159 AVIOContext *pb = s->pb;
1160 int i, j, temporal_reordering = 0;
1161 int key_index = mxf->last_key_index;
1163 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1165 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1168 avio_write(pb, index_table_segment_key, 16);
1170 if (mxf->edit_unit_byte_count) {
1171 klv_encode_ber_length(pb, 80);
1173 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 +
1174 12+mxf->edit_units_count*(11+mxf->slice_count*4));
1178 mxf_write_local_tag(pb, 16, 0x3C0A);
1179 mxf_write_uuid(pb, IndexTableSegment, 0);
1182 mxf_write_local_tag(pb, 8, 0x3F0B);
1183 avio_wb32(pb, mxf->time_base.den);
1184 avio_wb32(pb, mxf->time_base.num);
1186 // index start position
1187 mxf_write_local_tag(pb, 8, 0x3F0C);
1188 avio_wb64(pb, mxf->last_indexed_edit_unit);
1191 mxf_write_local_tag(pb, 8, 0x3F0D);
1192 if (mxf->edit_unit_byte_count)
1193 avio_wb64(pb, 0); // index table covers whole container
1195 avio_wb64(pb, mxf->edit_units_count);
1197 // edit unit byte count
1198 mxf_write_local_tag(pb, 4, 0x3F05);
1199 avio_wb32(pb, mxf->edit_unit_byte_count);
1202 mxf_write_local_tag(pb, 4, 0x3F06);
1206 mxf_write_local_tag(pb, 4, 0x3F07);
1209 if (!mxf->edit_unit_byte_count) {
1210 // real slice count - 1
1211 mxf_write_local_tag(pb, 1, 0x3F08);
1212 avio_w8(pb, mxf->slice_count);
1214 // delta entry array
1215 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1216 avio_wb32(pb, s->nb_streams+1); // num of entries
1217 avio_wb32(pb, 6); // size of one entry
1218 // write system item delta entry
1220 avio_w8(pb, 0); // slice entry
1221 avio_wb32(pb, 0); // element delta
1222 for (i = 0; i < s->nb_streams; i++) {
1223 AVStream *st = s->streams[i];
1224 MXFStreamContext *sc = st->priv_data;
1225 avio_w8(pb, sc->temporal_reordering);
1226 if (sc->temporal_reordering)
1227 temporal_reordering = 1;
1228 if (i == 0) { // video track
1229 avio_w8(pb, 0); // slice number
1230 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1231 } else { // audio track
1232 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1233 audio_frame_size += klv_fill_size(audio_frame_size);
1235 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1239 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1240 avio_wb32(pb, mxf->edit_units_count); // num of entries
1241 avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1243 for (i = 0; i < mxf->edit_units_count; i++) {
1244 int temporal_offset = 0;
1246 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1247 mxf->last_key_index = key_index;
1251 if (temporal_reordering) {
1252 int pic_num_in_gop = i - key_index;
1253 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1254 for (j = key_index; j < mxf->edit_units_count; j++) {
1255 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1258 if (j == mxf->edit_units_count)
1259 av_log(s, AV_LOG_WARNING, "missing frames\n");
1260 temporal_offset = j - key_index - pic_num_in_gop;
1263 avio_w8(pb, temporal_offset);
1265 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1266 avio_w8(pb, mxf->last_key_index - i);
1268 avio_w8(pb, key_index - i); // key frame offset
1269 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1270 mxf->last_key_index = key_index;
1273 if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1274 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1275 mxf->index_entries[i].flags |= 0x80; // random access
1276 avio_w8(pb, mxf->index_entries[i].flags);
1278 avio_wb64(pb, mxf->index_entries[i].offset);
1279 if (s->nb_streams > 1)
1280 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1283 mxf->last_key_index = key_index - mxf->edit_units_count;
1284 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1285 mxf->edit_units_count = 0;
1289 static void mxf_write_klv_fill(AVFormatContext *s)
1291 unsigned pad = klv_fill_size(avio_tell(s->pb));
1293 avio_write(s->pb, klv_fill_key, 16);
1295 klv_encode_ber4_length(s->pb, pad);
1298 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1302 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1304 const uint8_t *key, int write_metadata)
1306 MXFContext *mxf = s->priv_data;
1307 AVIOContext *pb = s->pb;
1308 int64_t header_byte_count_offset;
1309 unsigned index_byte_count = 0;
1310 uint64_t partition_offset = avio_tell(pb);
1312 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1313 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1314 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1315 else if (mxf->edit_unit_byte_count && indexsid)
1316 index_byte_count = 80;
1318 if (index_byte_count) {
1319 // add encoded ber length
1320 index_byte_count += 16 + klv_ber_length(index_byte_count);
1321 index_byte_count += klv_fill_size(index_byte_count);
1324 if (!memcmp(key, body_partition_key, 16)) {
1325 mxf->body_partition_offset =
1326 av_realloc(mxf->body_partition_offset,
1327 (mxf->body_partitions_count+1)*
1328 sizeof(*mxf->body_partition_offset));
1329 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1333 avio_write(pb, key, 16);
1334 klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count);
1336 // write partition value
1337 avio_wb16(pb, 1); // majorVersion
1338 avio_wb16(pb, 2); // minorVersion
1339 avio_wb32(pb, KAG_SIZE); // KAGSize
1341 avio_wb64(pb, partition_offset); // ThisPartition
1343 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1344 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1345 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1346 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1350 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1353 header_byte_count_offset = avio_tell(pb);
1354 avio_wb64(pb, 0); // headerByteCount, update later
1357 avio_wb64(pb, index_byte_count); // indexByteCount
1358 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1361 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1362 avio_wb64(pb, mxf->body_offset);
1366 avio_wb32(pb, bodysid); // bodySID
1368 // operational pattern
1369 avio_write(pb, op1a_ul, 16);
1371 // essence container
1372 mxf_write_essence_container_refs(s);
1374 if (write_metadata) {
1375 // mark the start of the headermetadata and calculate metadata size
1377 unsigned header_byte_count;
1379 mxf_write_klv_fill(s);
1380 start = avio_tell(s->pb);
1381 mxf_write_primer_pack(s);
1382 mxf_write_header_metadata_sets(s);
1383 pos = avio_tell(s->pb);
1384 header_byte_count = pos - start + klv_fill_size(pos);
1386 // update header_byte_count
1387 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1388 avio_wb64(pb, header_byte_count);
1389 avio_seek(pb, pos, SEEK_SET);
1395 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1398 MXFContext *mxf = s->priv_data;
1399 MXFStreamContext *sc = st->priv_data;
1401 uint8_t* header_cid;
1402 unsigned int frame_size = 0;
1404 if (mxf->header_written)
1410 header_cid = pkt->data + 0x28;
1411 cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1413 if ((i = ff_dnxhd_get_cid_table(cid)) < 0)
1419 sc->component_depth = 10;
1429 sc->component_depth = 10;
1439 sc->component_depth = 10;
1454 frame_size = ff_dnxhd_cid_table[i].frame_size;
1455 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1456 sc->aspect_ratio = (AVRational){ 16, 9 };
1458 mxf->edit_unit_byte_count = KAG_SIZE;
1459 for (i = 0; i < s->nb_streams; i++) {
1460 AVStream *st = s->streams[i];
1461 MXFStreamContext *sc = st->priv_data;
1462 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1463 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1464 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1465 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1466 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1467 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1474 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1476 MXFContext *mxf = s->priv_data;
1477 MXFStreamContext *sc = st->priv_data;
1478 uint8_t *vs_pack, *vsc_pack;
1479 int i, ul_index, frame_size, stype, pal;
1481 if (mxf->header_written)
1484 // Check for minimal frame size
1485 if (pkt->size < 120000)
1488 vs_pack = pkt->data + 80*5 + 48;
1489 vsc_pack = pkt->data + 80*5 + 53;
1490 stype = vs_pack[3] & 0x1f;
1491 pal = (vs_pack[3] >> 5) & 0x1;
1493 if ((vs_pack[2] & 0x07) == 0x02)
1494 sc->aspect_ratio = (AVRational){ 16, 9 };
1496 sc->aspect_ratio = (AVRational){ 4, 3 };
1498 sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1499 // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1500 // and set field dominance accordingly
1501 // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1504 case 0x18: // DV100 720p
1506 frame_size = pal ? 288000 : 240000;
1507 if (sc->interlaced) {
1508 av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1512 case 0x14: // DV100 1080i
1514 frame_size = pal ? 576000 : 480000;
1518 frame_size = pal ? 288000 : 240000;
1522 frame_size = pal ? 144000 : 120000;
1525 sc->index = ul_index + 16;
1526 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1528 mxf->edit_unit_byte_count = KAG_SIZE;
1529 for (i = 0; i < s->nb_streams; i++) {
1530 AVStream *st = s->streams[i];
1531 MXFStreamContext *sc = st->priv_data;
1532 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1533 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1534 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1535 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1536 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1537 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1544 static const UID mxf_mpeg2_codec_uls[] = {
1545 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1546 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1547 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1548 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1549 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1550 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1551 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1552 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1553 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1554 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1557 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1559 int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1561 if (avctx->profile == 4) { // Main
1562 if (avctx->level == 8) // Main
1563 return &mxf_mpeg2_codec_uls[0+long_gop];
1564 else if (avctx->level == 4) // High
1565 return &mxf_mpeg2_codec_uls[4+long_gop];
1566 else if (avctx->level == 6) // High 14
1567 return &mxf_mpeg2_codec_uls[8+long_gop];
1568 } else if (avctx->profile == 0) { // 422
1569 if (avctx->level == 5) // Main
1570 return &mxf_mpeg2_codec_uls[2+long_gop];
1571 else if (avctx->level == 2) // High
1572 return &mxf_mpeg2_codec_uls[6+long_gop];
1577 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1578 AVPacket *pkt, MXFIndexEntry *e)
1580 MXFStreamContext *sc = st->priv_data;
1584 for(i = 0; i < pkt->size - 4; i++) {
1585 c = (c<<8) + pkt->data[i];
1587 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1588 st->codec->profile = pkt->data[i+1] & 0x07;
1589 st->codec->level = pkt->data[i+2] >> 4;
1590 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1591 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1593 sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1596 } else if (c == 0x1b8) { // gop
1597 if (pkt->data[i+4]>>6 & 0x01) { // closed
1599 if (e->flags & 0x40) // sequence header present
1600 e->flags |= 0x80; // random access
1602 } else if (c == 0x1b3) { // seq
1604 switch ((pkt->data[i+4]>>4) & 0xf) {
1605 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1606 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1607 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1609 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1610 st->codec->width, st->codec->height, 1024*1024);
1612 } else if (c == 0x100) { // pic
1613 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1614 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1615 if (pict_type == 2) { // P frame
1617 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1618 } else if (pict_type == 3) { // B frame
1620 e->flags |= 0x13; // only backward prediction
1623 sc->temporal_reordering = -1;
1624 } else if (!pict_type) {
1625 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1630 if (s->oformat != &ff_mxf_d10_muxer)
1631 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1632 return !!sc->codec_ul;
1635 static uint64_t mxf_parse_timestamp(time_t timestamp)
1637 struct tm *time = gmtime(×tamp);
1640 return (uint64_t)(time->tm_year+1900) << 48 |
1641 (uint64_t)(time->tm_mon+1) << 40 |
1642 (uint64_t) time->tm_mday << 32 |
1643 time->tm_hour << 24 |
1644 time->tm_min << 16 |
1648 static void mxf_gen_umid(AVFormatContext *s)
1650 MXFContext *mxf = s->priv_data;
1651 uint32_t seed = av_get_random_seed();
1652 uint64_t umid = seed + 0x5294713400000000LL;
1654 AV_WB64(mxf->umid , umid);
1655 AV_WB64(mxf->umid+8, umid>>8);
1657 mxf->instance_number = seed;
1660 static int mxf_write_header(AVFormatContext *s)
1662 MXFContext *mxf = s->priv_data;
1664 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1665 const int *samples_per_frame = NULL;
1666 AVDictionaryEntry *t;
1667 int64_t timestamp = 0;
1668 AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1673 for (i = 0; i < s->nb_streams; i++) {
1674 AVStream *st = s->streams[i];
1675 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1677 return AVERROR(ENOMEM);
1680 if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1681 av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1685 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1686 AVRational rate, tbc = st->codec->time_base;
1687 // Default component depth to 8
1688 sc->component_depth = 8;
1689 mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1690 switch (mxf->timecode_base) {
1692 samples_per_frame = PAL_samples_per_frame;
1693 mxf->time_base = (AVRational){ 1, 25 };
1696 samples_per_frame = PAL_50_samples_per_frame;
1697 mxf->time_base = (AVRational){ 1, 50 };
1700 samples_per_frame = NTSC_samples_per_frame;
1701 mxf->time_base = (AVRational){ 1001, 30000 };
1704 samples_per_frame = NTSC_60_samples_per_frame;
1705 mxf->time_base = (AVRational){ 1001, 60000 };
1708 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1710 return AVERROR(EINVAL);
1712 rate = av_inv_q(mxf->time_base);
1713 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1715 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1717 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1719 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1722 if (s->oformat == &ff_mxf_d10_muxer) {
1723 if (st->codec->bit_rate == 50000000)
1724 if (mxf->time_base.den == 25) sc->index = 3;
1726 else if (st->codec->bit_rate == 40000000)
1727 if (mxf->time_base.den == 25) sc->index = 7;
1729 else if (st->codec->bit_rate == 30000000)
1730 if (mxf->time_base.den == 25) sc->index = 11;
1731 else sc->index = 13;
1733 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1737 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1738 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1739 mxf->time_base.num / (8*mxf->time_base.den);
1740 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1741 mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4;
1742 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1744 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1745 if (st->codec->sample_rate != 48000) {
1746 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1749 avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1750 if (s->oformat == &ff_mxf_d10_muxer) {
1751 if (st->index != 1) {
1752 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1755 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1756 st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
1757 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1759 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1761 mxf->slice_count = 1;
1765 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1766 if (sc->index == -1) {
1767 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1768 "codec not currently supported in container\n", i);
1773 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1775 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1776 sc->track_essence_element_key[15] = present[sc->index];
1777 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1779 if (!present[sc->index])
1780 mxf->essence_container_count++;
1781 present[sc->index]++;
1784 if (s->oformat == &ff_mxf_d10_muxer) {
1785 mxf->essence_container_count = 1;
1788 if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1791 for (i = 0; i < s->nb_streams; i++) {
1792 MXFStreamContext *sc = s->streams[i]->priv_data;
1793 // update element count
1794 sc->track_essence_element_key[13] = present[sc->index];
1795 if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1796 sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1798 sc->order = AV_RB32(sc->track_essence_element_key+12);
1801 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1802 timestamp = ff_iso8601_to_unix_time(t->value);
1804 mxf->timestamp = mxf_parse_timestamp(timestamp);
1807 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1808 if (!mxf->timecode_track)
1809 return AVERROR(ENOMEM);
1810 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1811 if (!mxf->timecode_track->priv_data)
1812 return AVERROR(ENOMEM);
1813 mxf->timecode_track->index = -1;
1815 if (!samples_per_frame)
1816 samples_per_frame = PAL_samples_per_frame;
1818 if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0)
1824 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1825 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 };
1827 static void mxf_write_system_item(AVFormatContext *s)
1829 MXFContext *mxf = s->priv_data;
1830 AVIOContext *pb = s->pb;
1834 frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1836 // write system metadata pack
1837 avio_write(pb, system_metadata_pack_key, 16);
1838 klv_encode_ber4_length(pb, 57);
1839 avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1840 avio_w8(pb, 0x04); // content package rate
1841 avio_w8(pb, 0x00); // content package type
1842 avio_wb16(pb, 0x00); // channel handle
1843 avio_wb16(pb, mxf->tc.start + frame); // continuity count
1844 if (mxf->essence_container_count > 1)
1845 avio_write(pb, multiple_desc_ul, 16);
1847 MXFStreamContext *sc = s->streams[0]->priv_data;
1848 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1852 avio_wb64(pb, 0); // creation date/time stamp
1854 avio_w8(pb, 0x81); // SMPTE 12M time code
1855 time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1856 avio_wb32(pb, time_code);
1857 avio_wb32(pb, 0); // binary group data
1860 // write system metadata package set
1861 avio_write(pb, system_metadata_package_set_key, 16);
1862 klv_encode_ber4_length(pb, 35);
1863 avio_w8(pb, 0x83); // UMID
1864 avio_wb16(pb, 0x20);
1865 mxf_write_umid(s, 1);
1868 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1870 MXFContext *mxf = s->priv_data;
1871 AVIOContext *pb = s->pb;
1872 int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1873 (8*mxf->time_base.den); // frame size
1876 packet_size += 16 + 4;
1877 packet_size += klv_fill_size(packet_size);
1879 klv_encode_ber4_length(pb, pkt->size);
1880 avio_write(pb, pkt->data, pkt->size);
1882 // ensure CBR muxing by padding to correct video frame size
1883 pad = packet_size - pkt->size - 16 - 4;
1885 avio_write(s->pb, klv_fill_key, 16);
1887 klv_encode_ber4_length(s->pb, pad);
1890 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1892 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1893 for (; pad > 0; pad--)
1898 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1900 MXFContext *mxf = s->priv_data;
1901 AVIOContext *pb = s->pb;
1902 int frame_size = pkt->size / st->codec->block_align;
1903 uint8_t *samples = pkt->data;
1904 uint8_t *end = pkt->data + pkt->size;
1907 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1909 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1910 avio_wl16(pb, frame_size);
1911 avio_w8(pb, (1<<st->codec->channels)-1);
1913 while (samples < end) {
1914 for (i = 0; i < st->codec->channels; i++) {
1916 if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
1917 sample = AV_RL24(samples)<< 4;
1920 sample = AV_RL16(samples)<<12;
1923 avio_wl32(pb, sample | i);
1930 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1932 MXFContext *mxf = s->priv_data;
1933 AVIOContext *pb = s->pb;
1934 AVStream *st = s->streams[pkt->stream_index];
1935 MXFStreamContext *sc = st->priv_data;
1936 MXFIndexEntry ie = {0};
1938 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1939 mxf->index_entries = av_realloc(mxf->index_entries,
1940 (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1941 if (!mxf->index_entries) {
1942 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1947 if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1948 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1949 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1952 } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
1953 if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1954 av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1957 } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
1958 if (!mxf_parse_dv_frame(s, st, pkt)) {
1959 av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1964 if (!mxf->header_written) {
1965 if (mxf->edit_unit_byte_count) {
1966 mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1967 mxf_write_klv_fill(s);
1968 mxf_write_index_table_segment(s);
1970 mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1972 mxf->header_written = 1;
1975 if (st->index == 0) {
1976 if (!mxf->edit_unit_byte_count &&
1977 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1978 !(ie.flags & 0x33)) { // I frame, Gop start
1979 mxf_write_klv_fill(s);
1980 mxf_write_partition(s, 1, 2, body_partition_key, 0);
1982 mxf_write_klv_fill(s);
1983 mxf_write_index_table_segment(s);
1986 mxf_write_klv_fill(s);
1987 mxf_write_system_item(s);
1989 if (!mxf->edit_unit_byte_count) {
1990 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1991 mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
1992 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
1993 mxf->body_offset += KAG_SIZE; // size of system element
1995 mxf->edit_units_count++;
1996 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1997 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1998 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
2001 mxf_write_klv_fill(s);
2002 avio_write(pb, sc->track_essence_element_key, 16); // write key
2003 if (s->oformat == &ff_mxf_d10_muxer) {
2004 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2005 mxf_write_d10_video_packet(s, st, pkt);
2007 mxf_write_d10_audio_packet(s, st, pkt);
2009 klv_encode_ber4_length(pb, pkt->size); // write length
2010 avio_write(pb, pkt->data, pkt->size);
2011 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2019 static void mxf_write_random_index_pack(AVFormatContext *s)
2021 MXFContext *mxf = s->priv_data;
2022 AVIOContext *pb = s->pb;
2023 uint64_t pos = avio_tell(pb);
2026 avio_write(pb, random_index_pack_key, 16);
2027 klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count);
2029 if (mxf->edit_unit_byte_count)
2030 avio_wb32(pb, 1); // BodySID of header partition
2033 avio_wb64(pb, 0); // offset of header partition
2035 for (i = 0; i < mxf->body_partitions_count; i++) {
2036 avio_wb32(pb, 1); // BodySID
2037 avio_wb64(pb, mxf->body_partition_offset[i]);
2040 avio_wb32(pb, 0); // BodySID of footer partition
2041 avio_wb64(pb, mxf->footer_partition_offset);
2043 avio_wb32(pb, avio_tell(pb) - pos + 4);
2046 static int mxf_write_footer(AVFormatContext *s)
2048 MXFContext *mxf = s->priv_data;
2049 AVIOContext *pb = s->pb;
2051 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2053 mxf_write_klv_fill(s);
2054 mxf->footer_partition_offset = avio_tell(pb);
2055 if (mxf->edit_unit_byte_count) { // no need to repeat index
2056 mxf_write_partition(s, 0, 0, footer_partition_key, 0);
2058 mxf_write_partition(s, 0, 2, footer_partition_key, 0);
2060 mxf_write_klv_fill(s);
2061 mxf_write_index_table_segment(s);
2064 mxf_write_klv_fill(s);
2065 mxf_write_random_index_pack(s);
2067 if (s->pb->seekable) {
2068 avio_seek(pb, 0, SEEK_SET);
2069 if (mxf->edit_unit_byte_count) {
2070 mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
2071 mxf_write_klv_fill(s);
2072 mxf_write_index_table_segment(s);
2074 mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
2080 ff_audio_interleave_close(s);
2082 av_freep(&mxf->index_entries);
2083 av_freep(&mxf->body_partition_offset);
2084 av_freep(&mxf->timecode_track->priv_data);
2085 av_freep(&mxf->timecode_track);
2092 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2094 int i, stream_count = 0;
2096 for (i = 0; i < s->nb_streams; i++)
2097 stream_count += !!s->streams[i]->last_in_packet_buffer;
2099 if (stream_count && (s->nb_streams == stream_count || flush)) {
2100 AVPacketList *pktl = s->packet_buffer;
2101 if (s->nb_streams != stream_count) {
2102 AVPacketList *last = NULL;
2103 // find last packet in edit unit
2105 if (!stream_count || pktl->pkt.stream_index == 0)
2111 // purge packet queue
2113 AVPacketList *next = pktl->next;
2115 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2116 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2117 av_free_packet(&pktl->pkt);
2124 s->packet_buffer = NULL;
2125 s->packet_buffer_end= NULL;
2128 pktl = s->packet_buffer;
2132 //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts);
2133 s->packet_buffer = pktl->next;
2134 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2135 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2136 if(!s->packet_buffer)
2137 s->packet_buffer_end= NULL;
2142 av_init_packet(out);
2147 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2149 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
2150 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2152 return next->dts > pkt->dts ||
2153 (next->dts == pkt->dts && sc->order < sc2->order);
2156 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2158 return ff_audio_rechunk_interleave(s, out, pkt, flush,
2159 mxf_interleave_get_packet, mxf_compare_timestamps);
2162 AVOutputFormat ff_mxf_muxer = {
2164 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2165 .mime_type = "application/mxf",
2166 .extensions = "mxf",
2167 .priv_data_size = sizeof(MXFContext),
2168 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2169 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2170 .write_header = mxf_write_header,
2171 .write_packet = mxf_write_packet,
2172 .write_trailer = mxf_write_footer,
2173 .flags = AVFMT_NOTIMESTAMPS,
2174 .interleave_packet = mxf_interleave,
2177 AVOutputFormat ff_mxf_d10_muxer = {
2179 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2180 .mime_type = "application/mxf",
2181 .priv_data_size = sizeof(MXFContext),
2182 .audio_codec = AV_CODEC_ID_PCM_S16LE,
2183 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
2184 .write_header = mxf_write_header,
2185 .write_packet = mxf_write_packet,
2186 .write_trailer = mxf_write_footer,
2187 .flags = AVFMT_NOTIMESTAMPS,
2188 .interleave_packet = mxf_interleave,