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 "libavcodec/bytestream.h"
42 #include "libavcodec/dnxhddata.h"
43 #include "audiointerleave.h"
49 static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 };
50 static const int NTSC_60_samples_per_frame[] = { 801, 801, 801, 801, 800, 0 };
51 static const int PAL_samples_per_frame[] = { 1920, 0 };
52 static const int PAL_50_samples_per_frame[] = { 960, 0 };
54 extern AVOutputFormat ff_mxf_d10_muxer;
56 #define EDIT_UNITS_PER_BODY 250
67 unsigned slice_offset; ///< offset of audio slice
68 uint16_t temporal_ref;
72 AudioInterleaveContext aic;
73 UID track_essence_element_key;
74 int index; ///< index in mxf_essence_container_uls table
76 int order; ///< interleaving order if dts are equal
77 int interlaced; ///< whether picture is interlaced
78 int field_dominance; ///< tff=1, bff=2
80 int temporal_reordering;
81 AVRational aspect_ratio; ///< display aspect ratio
82 int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
89 void (*write_desc)(AVFormatContext *, AVStream *);
90 } MXFContainerEssenceEntry;
95 } mxf_essence_mappings[] = {
96 { CODEC_ID_MPEG2VIDEO, 0 },
97 { CODEC_ID_PCM_S24LE, 1 },
98 { CODEC_ID_PCM_S16LE, 1 },
99 { CODEC_ID_DVVIDEO, 15 },
100 { CODEC_ID_DNXHD, 24 },
104 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
105 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
106 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
107 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
108 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
110 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
111 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
112 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
113 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
114 mxf_write_mpegvideo_desc },
115 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
116 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
117 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
118 mxf_write_aes3_desc },
119 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
120 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
121 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
122 mxf_write_wav_desc },
123 // D-10 625/50 PAL 50mb/s
124 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
125 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
126 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
127 mxf_write_cdci_desc },
128 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
129 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
130 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
131 mxf_write_generic_sound_desc },
132 // D-10 525/60 NTSC 50mb/s
133 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
134 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
135 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
136 mxf_write_cdci_desc },
137 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
138 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
139 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
140 mxf_write_generic_sound_desc },
141 // D-10 625/50 PAL 40mb/s
142 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
143 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
144 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
145 mxf_write_cdci_desc },
146 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
147 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
148 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
149 mxf_write_generic_sound_desc },
150 // D-10 525/60 NTSC 40mb/s
151 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
152 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
153 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
154 mxf_write_cdci_desc },
155 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
156 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
157 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
158 mxf_write_generic_sound_desc },
159 // D-10 625/50 PAL 30mb/s
160 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
161 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
162 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
163 mxf_write_cdci_desc },
164 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
165 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
166 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
167 mxf_write_generic_sound_desc },
168 // D-10 525/60 NTSC 30mb/s
169 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
170 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
171 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
172 mxf_write_cdci_desc },
173 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
174 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
175 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
176 mxf_write_generic_sound_desc },
178 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
179 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
180 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
181 mxf_write_cdci_desc },
183 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
184 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
185 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
186 mxf_write_cdci_desc },
188 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
189 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
190 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
191 mxf_write_cdci_desc },
193 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
194 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
195 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
196 mxf_write_cdci_desc },
198 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
199 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
200 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
201 mxf_write_cdci_desc },
203 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
204 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
205 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
206 mxf_write_cdci_desc },
208 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
209 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
210 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
211 mxf_write_cdci_desc },
213 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
214 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
215 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
216 mxf_write_cdci_desc },
218 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
219 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
220 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
221 mxf_write_cdci_desc },
222 // DNxHD 1080p 10bit high
223 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
224 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
225 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
226 mxf_write_cdci_desc },
227 // DNxHD 1080p 8bit medium
228 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
229 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
230 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
231 mxf_write_cdci_desc },
232 // DNxHD 1080p 8bit high
233 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
234 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
235 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
236 mxf_write_cdci_desc },
237 // DNxHD 1080i 10bit high
238 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
239 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
240 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
241 mxf_write_cdci_desc },
242 // DNxHD 1080i 8bit medium
243 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
244 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
245 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
246 mxf_write_cdci_desc },
247 // DNxHD 1080i 8bit high
248 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
249 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
250 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
251 mxf_write_cdci_desc },
253 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
254 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
255 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
256 mxf_write_cdci_desc },
257 // DNxHD 720p 8bit high
258 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
259 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
260 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
261 mxf_write_cdci_desc },
262 // DNxHD 720p 8bit medium
263 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
264 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
265 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
266 mxf_write_cdci_desc },
267 // DNxHD 720p 8bit low
268 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
269 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
270 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
271 mxf_write_cdci_desc },
272 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
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 },
278 typedef struct MXFContext {
280 int64_t footer_partition_offset;
281 int essence_container_count;
282 AVRational time_base;
284 MXFIndexEntry *index_entries;
285 unsigned edit_units_count;
286 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
287 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
288 int last_indexed_edit_unit;
289 uint64_t *body_partition_offset;
290 unsigned body_partitions_count;
291 int last_key_index; ///< index of last key frame
293 AVTimecode tc; ///< timecode context
294 AVStream *timecode_track;
295 int timecode_base; ///< rounded time code base (25 or 30)
296 int edit_unit_byte_count; ///< fixed edit unit byte count
297 uint64_t body_offset;
298 uint32_t instance_number;
299 uint8_t umid[16]; ///< unique material identifier
302 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
303 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
306 * complete key for operation pattern, partitions, and primer pack
308 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
309 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
310 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
311 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
312 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
313 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
314 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
315 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
316 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
319 * partial key for header metadata
321 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
322 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
325 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
327 static const MXFLocalTagPair mxf_local_tag_batch[] = {
329 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
330 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
331 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
332 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
333 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
334 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
335 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
336 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
338 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
339 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
340 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
341 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
342 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
343 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
345 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
346 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
347 // Essence Container Data
348 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
349 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
351 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
352 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
353 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
354 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
355 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
357 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
358 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
359 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
360 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
361 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
363 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
364 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
365 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
367 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
368 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
369 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
370 // Timecode Component
371 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
372 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
373 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
375 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
376 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
377 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
378 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
379 // Generic Picture Essence Descriptor
380 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
381 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
382 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
383 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
384 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
385 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
386 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
387 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
388 { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
389 // CDCI Picture Essence Descriptor
390 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
391 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
392 // Generic Sound Essence Descriptor
393 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
394 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
395 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
396 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
397 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
398 // Index Table Segment
399 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
400 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
401 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
402 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
403 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
404 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
405 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
406 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
407 // MPEG video Descriptor
408 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
409 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
410 // Wave Audio Essence Descriptor
411 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
412 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
415 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
417 avio_write(pb, uuid_base, 12);
419 avio_wb16(pb, value);
422 static void mxf_write_umid(AVFormatContext *s, int type)
424 MXFContext *mxf = s->priv_data;
425 avio_write(s->pb, umid_ul, 13);
426 avio_wb24(s->pb, mxf->instance_number);
427 avio_write(s->pb, mxf->umid, 15);
428 avio_w8(s->pb, type);
431 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
433 avio_wb32(pb, ref_count);
437 static int klv_ber_length(uint64_t len)
442 return (av_log2(len) >> 3) + 2;
445 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
447 // Determine the best BER size
455 size = (av_log2(len) >> 3) + 1;
458 avio_w8(pb, 0x80 + size);
461 avio_w8(pb, len >> 8 * size & 0xff);
466 static void klv_encode_ber4_length(AVIOContext *pb, int len)
468 avio_w8(pb, 0x80 + 3);
473 * Get essence container ul index
475 static int mxf_get_essence_container_ul_index(enum CodecID id)
478 for (i = 0; mxf_essence_mappings[i].id; i++)
479 if (mxf_essence_mappings[i].id == id)
480 return mxf_essence_mappings[i].index;
484 static void mxf_write_primer_pack(AVFormatContext *s)
486 AVIOContext *pb = s->pb;
487 int local_tag_number, i = 0;
489 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
491 avio_write(pb, primer_pack_key, 16);
492 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
494 avio_wb32(pb, local_tag_number); // local_tag num
495 avio_wb32(pb, 18); // item size, always 18 according to the specs
497 for (i = 0; i < local_tag_number; i++) {
498 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
499 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
503 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
509 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
511 avio_write(pb, header_metadata_key, 13);
512 avio_wb24(pb, value);
515 static void mxf_free(AVFormatContext *s)
519 for (i = 0; i < s->nb_streams; i++) {
520 AVStream *st = s->streams[i];
521 av_freep(&st->priv_data);
525 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
527 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
528 while (uls->uid[0]) {
536 static void mxf_write_essence_container_refs(AVFormatContext *s)
538 MXFContext *c = s->priv_data;
539 AVIOContext *pb = s->pb;
542 mxf_write_refs_count(pb, c->essence_container_count);
543 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
544 for (i = 0; i < c->essence_container_count; i++) {
545 MXFStreamContext *sc = s->streams[i]->priv_data;
546 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
550 static void mxf_write_preface(AVFormatContext *s)
552 MXFContext *mxf = s->priv_data;
553 AVIOContext *pb = s->pb;
555 mxf_write_metadata_key(pb, 0x012f00);
556 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
557 klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count);
559 // write preface set uid
560 mxf_write_local_tag(pb, 16, 0x3C0A);
561 mxf_write_uuid(pb, Preface, 0);
562 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
564 // last modified date
565 mxf_write_local_tag(pb, 8, 0x3B02);
566 avio_wb64(pb, mxf->timestamp);
569 mxf_write_local_tag(pb, 2, 0x3B05);
570 avio_wb16(pb, 258); // v1.2
572 // write identification_refs
573 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
574 mxf_write_refs_count(pb, 1);
575 mxf_write_uuid(pb, Identification, 0);
577 // write content_storage_refs
578 mxf_write_local_tag(pb, 16, 0x3B03);
579 mxf_write_uuid(pb, ContentStorage, 0);
581 // operational pattern
582 mxf_write_local_tag(pb, 16, 0x3B09);
583 avio_write(pb, op1a_ul, 16);
585 // write essence_container_refs
586 mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A);
587 mxf_write_essence_container_refs(s);
589 // write dm_scheme_refs
590 mxf_write_local_tag(pb, 8, 0x3B0B);
595 * Write a local tag containing an ascii string as utf-16
597 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
599 int i, size = strlen(value);
600 mxf_write_local_tag(pb, size*2, tag);
601 for (i = 0; i < size; i++)
602 avio_wb16(pb, value[i]);
605 static void mxf_write_identification(AVFormatContext *s)
607 MXFContext *mxf = s->priv_data;
608 AVIOContext *pb = s->pb;
609 const char *company = "FFmpeg";
610 const char *product = "OP1a Muxer";
614 mxf_write_metadata_key(pb, 0x013000);
615 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
617 version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
618 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
619 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
620 klv_encode_ber_length(pb, length);
623 mxf_write_local_tag(pb, 16, 0x3C0A);
624 mxf_write_uuid(pb, Identification, 0);
625 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
627 // write generation uid
628 mxf_write_local_tag(pb, 16, 0x3C09);
629 mxf_write_uuid(pb, Identification, 1);
631 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
632 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
633 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
636 mxf_write_local_tag(pb, 16, 0x3C05);
637 mxf_write_uuid(pb, Identification, 2);
640 mxf_write_local_tag(pb, 8, 0x3C06);
641 avio_wb64(pb, mxf->timestamp);
644 static void mxf_write_content_storage(AVFormatContext *s)
646 AVIOContext *pb = s->pb;
648 mxf_write_metadata_key(pb, 0x011800);
649 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
650 klv_encode_ber_length(pb, 92);
653 mxf_write_local_tag(pb, 16, 0x3C0A);
654 mxf_write_uuid(pb, ContentStorage, 0);
655 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
657 // write package reference
658 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
659 mxf_write_refs_count(pb, 2);
660 mxf_write_uuid(pb, MaterialPackage, 0);
661 mxf_write_uuid(pb, SourcePackage, 0);
663 // write essence container data
664 mxf_write_local_tag(pb, 8 + 16, 0x1902);
665 mxf_write_refs_count(pb, 1);
666 mxf_write_uuid(pb, EssenceContainerData, 0);
669 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
671 MXFContext *mxf = s->priv_data;
672 AVIOContext *pb = s->pb;
673 MXFStreamContext *sc = st->priv_data;
675 mxf_write_metadata_key(pb, 0x013b00);
676 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
677 klv_encode_ber_length(pb, 80);
680 mxf_write_local_tag(pb, 16, 0x3C0A);
681 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
682 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
685 mxf_write_local_tag(pb, 4, 0x4801);
686 avio_wb32(pb, st->index+2);
688 // write track number
689 mxf_write_local_tag(pb, 4, 0x4804);
690 if (type == MaterialPackage)
691 avio_wb32(pb, 0); // track number of material package is 0
693 avio_write(pb, sc->track_essence_element_key + 12, 4);
695 mxf_write_local_tag(pb, 8, 0x4B01);
696 avio_wb32(pb, mxf->time_base.den);
697 avio_wb32(pb, mxf->time_base.num);
700 mxf_write_local_tag(pb, 8, 0x4B02);
703 // write sequence refs
704 mxf_write_local_tag(pb, 16, 0x4803);
705 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
708 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 };
710 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
712 MXFContext *mxf = s->priv_data;
713 AVIOContext *pb = s->pb;
715 // find data define uls
716 mxf_write_local_tag(pb, 16, 0x0201);
717 if (st == mxf->timecode_track)
718 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
720 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
721 avio_write(pb, data_def_ul->uid, 16);
725 mxf_write_local_tag(pb, 8, 0x0202);
726 avio_wb64(pb, mxf->duration);
729 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
731 MXFContext *mxf = s->priv_data;
732 AVIOContext *pb = s->pb;
733 enum MXFMetadataSetType component;
735 mxf_write_metadata_key(pb, 0x010f00);
736 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
737 klv_encode_ber_length(pb, 80);
739 mxf_write_local_tag(pb, 16, 0x3C0A);
740 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
742 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
743 mxf_write_common_fields(s, st);
745 // write structural component
746 mxf_write_local_tag(pb, 16 + 8, 0x1001);
747 mxf_write_refs_count(pb, 1);
748 if (st == mxf->timecode_track)
749 component = TimecodeComponent;
751 component = SourceClip;
752 if (type == SourcePackage)
753 component += TypeBottom;
754 mxf_write_uuid(pb, component, st->index);
757 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
759 MXFContext *mxf = s->priv_data;
760 AVIOContext *pb = s->pb;
762 mxf_write_metadata_key(pb, 0x011400);
763 klv_encode_ber_length(pb, 75);
766 mxf_write_local_tag(pb, 16, 0x3C0A);
767 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
768 TimecodeComponent + TypeBottom, st->index);
770 mxf_write_common_fields(s, st);
773 mxf_write_local_tag(pb, 8, 0x1501);
774 avio_wb64(pb, mxf->tc.start);
776 // Rounded Time Code Base
777 mxf_write_local_tag(pb, 2, 0x1502);
778 avio_wb16(pb, mxf->timecode_base);
781 mxf_write_local_tag(pb, 1, 0x1503);
782 avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
785 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
787 AVIOContext *pb = s->pb;
790 mxf_write_metadata_key(pb, 0x011100);
791 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
792 klv_encode_ber_length(pb, 108);
795 mxf_write_local_tag(pb, 16, 0x3C0A);
796 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
798 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
799 mxf_write_common_fields(s, st);
801 // write start_position
802 mxf_write_local_tag(pb, 8, 0x1201);
805 // write source package uid, end of the reference
806 mxf_write_local_tag(pb, 32, 0x1101);
807 if (type == SourcePackage) {
808 for (i = 0; i < 4; i++)
811 mxf_write_umid(s, 1);
813 // write source track id
814 mxf_write_local_tag(pb, 4, 0x1102);
815 if (type == SourcePackage)
818 avio_wb32(pb, st->index+2);
821 static void mxf_write_multi_descriptor(AVFormatContext *s)
823 MXFContext *mxf = s->priv_data;
824 AVIOContext *pb = s->pb;
828 mxf_write_metadata_key(pb, 0x014400);
829 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
830 klv_encode_ber_length(pb, 64 + 16 * s->nb_streams);
832 mxf_write_local_tag(pb, 16, 0x3C0A);
833 mxf_write_uuid(pb, MultipleDescriptor, 0);
834 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
837 mxf_write_local_tag(pb, 8, 0x3001);
838 avio_wb32(pb, mxf->time_base.den);
839 avio_wb32(pb, mxf->time_base.num);
841 // write essence container ul
842 mxf_write_local_tag(pb, 16, 0x3004);
843 if (mxf->essence_container_count > 1)
844 ul = multiple_desc_ul;
846 MXFStreamContext *sc = s->streams[0]->priv_data;
847 ul = mxf_essence_container_uls[sc->index].container_ul;
849 avio_write(pb, ul, 16);
851 // write sub descriptor refs
852 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
853 mxf_write_refs_count(pb, s->nb_streams);
854 for (i = 0; i < s->nb_streams; i++)
855 mxf_write_uuid(pb, SubDescriptor, i);
858 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
860 MXFContext *mxf = s->priv_data;
861 MXFStreamContext *sc = st->priv_data;
862 AVIOContext *pb = s->pb;
864 avio_write(pb, key, 16);
865 klv_encode_ber4_length(pb, size+20+8+12+20);
867 mxf_write_local_tag(pb, 16, 0x3C0A);
868 mxf_write_uuid(pb, SubDescriptor, st->index);
870 mxf_write_local_tag(pb, 4, 0x3006);
871 avio_wb32(pb, st->index+2);
873 mxf_write_local_tag(pb, 8, 0x3001);
874 avio_wb32(pb, mxf->time_base.den);
875 avio_wb32(pb, mxf->time_base.num);
877 mxf_write_local_tag(pb, 16, 0x3004);
878 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
881 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
882 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
883 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
884 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
885 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
887 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
889 MXFStreamContext *sc = st->priv_data;
890 AVIOContext *pb = s->pb;
891 int stored_height = (st->codec->height+15)/16*16;
894 unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
895 if (sc->interlaced && sc->field_dominance)
898 mxf_write_generic_desc(s, st, key, desc_size);
900 mxf_write_local_tag(pb, 4, 0x3203);
901 avio_wb32(pb, st->codec->width);
903 mxf_write_local_tag(pb, 4, 0x3202);
904 avio_wb32(pb, stored_height>>sc->interlaced);
906 mxf_write_local_tag(pb, 4, 0x3209);
907 avio_wb32(pb, st->codec->width);
909 if (st->codec->height == 608) // PAL + VBI
910 display_height = 576;
911 else if (st->codec->height == 512) // NTSC + VBI
912 display_height = 486;
914 display_height = st->codec->height;
916 mxf_write_local_tag(pb, 4, 0x3208);
917 avio_wb32(pb, display_height>>sc->interlaced);
920 mxf_write_local_tag(pb, 4, 0x3301);
921 avio_wb32(pb, sc->component_depth);
923 // horizontal subsampling
924 mxf_write_local_tag(pb, 4, 0x3302);
928 mxf_write_local_tag(pb, 1, 0x320C);
929 avio_w8(pb, sc->interlaced);
932 switch (st->codec->height) {
933 case 576: f1 = 23; f2 = st->codec->codec_id == CODEC_ID_DVVIDEO ? 335 : 336; break;
934 case 608: f1 = 7; f2 = 320; break;
935 case 480: f1 = 20; f2 = st->codec->codec_id == CODEC_ID_DVVIDEO ? 285 : 283; break;
936 case 512: f1 = 7; f2 = 270; break;
937 case 720: f1 = 26; f2 = 0; break; // progressive
938 case 1080: f1 = 21; f2 = 584; break;
939 default: f1 = 0; f2 = 0; break;
942 if (!sc->interlaced) {
947 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
948 avio_wb32(pb, sc->interlaced ? 2 : 1);
954 mxf_write_local_tag(pb, 8, 0x320E);
955 avio_wb32(pb, sc->aspect_ratio.num);
956 avio_wb32(pb, sc->aspect_ratio.den);
958 mxf_write_local_tag(pb, 16, 0x3201);
959 avio_write(pb, *sc->codec_ul, 16);
961 if (sc->interlaced && sc->field_dominance) {
962 mxf_write_local_tag(pb, 1, 0x3212);
963 avio_w8(pb, sc->field_dominance);
968 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
970 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
973 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
975 AVIOContext *pb = s->pb;
976 int profile_and_level = (st->codec->profile<<4) | st->codec->level;
978 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
981 mxf_write_local_tag(pb, 4, 0x8000);
982 avio_wb32(pb, st->codec->bit_rate);
985 mxf_write_local_tag(pb, 1, 0x8007);
986 if (!st->codec->profile)
987 profile_and_level |= 0x80; // escape bit
988 avio_w8(pb, profile_and_level);
991 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
993 AVIOContext *pb = s->pb;
995 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
998 mxf_write_local_tag(pb, 1, 0x3D02);
1001 // write audio sampling rate
1002 mxf_write_local_tag(pb, 8, 0x3D03);
1003 avio_wb32(pb, st->codec->sample_rate);
1006 mxf_write_local_tag(pb, 4, 0x3D07);
1007 avio_wb32(pb, st->codec->channels);
1009 mxf_write_local_tag(pb, 4, 0x3D01);
1010 avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1013 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1015 AVIOContext *pb = s->pb;
1017 mxf_write_generic_sound_common(s, st, key, size+6+8);
1019 mxf_write_local_tag(pb, 2, 0x3D0A);
1020 avio_wb16(pb, st->codec->block_align);
1022 // avg bytes per sec
1023 mxf_write_local_tag(pb, 4, 0x3D09);
1024 avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1027 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1029 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1032 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1034 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1037 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1039 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1042 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
1044 MXFContext *mxf = s->priv_data;
1045 AVIOContext *pb = s->pb;
1046 int i, track_count = s->nb_streams+1;
1048 if (type == MaterialPackage) {
1049 mxf_write_metadata_key(pb, 0x013600);
1050 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1051 klv_encode_ber_length(pb, 92 + 16*track_count);
1053 mxf_write_metadata_key(pb, 0x013700);
1054 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1055 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1059 mxf_write_local_tag(pb, 16, 0x3C0A);
1060 mxf_write_uuid(pb, type, 0);
1061 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1062 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1064 // write package umid
1065 mxf_write_local_tag(pb, 32, 0x4401);
1066 mxf_write_umid(s, type == SourcePackage);
1067 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1069 // package creation date
1070 mxf_write_local_tag(pb, 8, 0x4405);
1071 avio_wb64(pb, mxf->timestamp);
1073 // package modified date
1074 mxf_write_local_tag(pb, 8, 0x4404);
1075 avio_wb64(pb, mxf->timestamp);
1078 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1079 mxf_write_refs_count(pb, track_count);
1080 mxf_write_uuid(pb, type == MaterialPackage ? Track :
1081 Track + TypeBottom, -1); // timecode track
1082 for (i = 0; i < s->nb_streams; i++)
1083 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1085 // write multiple descriptor reference
1086 if (type == SourcePackage) {
1087 mxf_write_local_tag(pb, 16, 0x4701);
1088 if (s->nb_streams > 1) {
1089 mxf_write_uuid(pb, MultipleDescriptor, 0);
1090 mxf_write_multi_descriptor(s);
1092 mxf_write_uuid(pb, SubDescriptor, 0);
1095 // write timecode track
1096 mxf_write_track(s, mxf->timecode_track, type);
1097 mxf_write_sequence(s, mxf->timecode_track, type);
1098 mxf_write_timecode_component(s, mxf->timecode_track, type);
1100 for (i = 0; i < s->nb_streams; i++) {
1101 AVStream *st = s->streams[i];
1102 mxf_write_track(s, st, type);
1103 mxf_write_sequence(s, st, type);
1104 mxf_write_structural_component(s, st, type);
1106 if (type == SourcePackage) {
1107 MXFStreamContext *sc = st->priv_data;
1108 mxf_essence_container_uls[sc->index].write_desc(s, st);
1113 static int mxf_write_essence_container_data(AVFormatContext *s)
1115 AVIOContext *pb = s->pb;
1117 mxf_write_metadata_key(pb, 0x012300);
1118 klv_encode_ber_length(pb, 72);
1120 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1121 mxf_write_uuid(pb, EssenceContainerData, 0);
1123 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1124 mxf_write_umid(s, 1);
1126 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1129 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1135 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1137 mxf_write_preface(s);
1138 mxf_write_identification(s);
1139 mxf_write_content_storage(s);
1140 mxf_write_package(s, MaterialPackage);
1141 mxf_write_package(s, SourcePackage);
1142 mxf_write_essence_container_data(s);
1146 static unsigned klv_fill_size(uint64_t size)
1148 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1149 if (pad < 20) // smallest fill item possible
1150 return pad + KAG_SIZE;
1152 return pad & (KAG_SIZE-1);
1155 static void mxf_write_index_table_segment(AVFormatContext *s)
1157 MXFContext *mxf = s->priv_data;
1158 AVIOContext *pb = s->pb;
1159 int i, j, temporal_reordering = 0;
1160 int key_index = mxf->last_key_index;
1162 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1164 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1167 avio_write(pb, index_table_segment_key, 16);
1169 if (mxf->edit_unit_byte_count) {
1170 klv_encode_ber_length(pb, 80);
1172 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 +
1173 12+mxf->edit_units_count*(11+mxf->slice_count*4));
1177 mxf_write_local_tag(pb, 16, 0x3C0A);
1178 mxf_write_uuid(pb, IndexTableSegment, 0);
1181 mxf_write_local_tag(pb, 8, 0x3F0B);
1182 avio_wb32(pb, mxf->time_base.den);
1183 avio_wb32(pb, mxf->time_base.num);
1185 // index start position
1186 mxf_write_local_tag(pb, 8, 0x3F0C);
1187 avio_wb64(pb, mxf->last_indexed_edit_unit);
1190 mxf_write_local_tag(pb, 8, 0x3F0D);
1191 if (mxf->edit_unit_byte_count)
1192 avio_wb64(pb, 0); // index table covers whole container
1194 avio_wb64(pb, mxf->edit_units_count);
1196 // edit unit byte count
1197 mxf_write_local_tag(pb, 4, 0x3F05);
1198 avio_wb32(pb, mxf->edit_unit_byte_count);
1201 mxf_write_local_tag(pb, 4, 0x3F06);
1205 mxf_write_local_tag(pb, 4, 0x3F07);
1208 if (!mxf->edit_unit_byte_count) {
1209 // real slice count - 1
1210 mxf_write_local_tag(pb, 1, 0x3F08);
1211 avio_w8(pb, mxf->slice_count);
1213 // delta entry array
1214 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1215 avio_wb32(pb, s->nb_streams+1); // num of entries
1216 avio_wb32(pb, 6); // size of one entry
1217 // write system item delta entry
1219 avio_w8(pb, 0); // slice entry
1220 avio_wb32(pb, 0); // element delta
1221 for (i = 0; i < s->nb_streams; i++) {
1222 AVStream *st = s->streams[i];
1223 MXFStreamContext *sc = st->priv_data;
1224 avio_w8(pb, sc->temporal_reordering);
1225 if (sc->temporal_reordering)
1226 temporal_reordering = 1;
1227 if (i == 0) { // video track
1228 avio_w8(pb, 0); // slice number
1229 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1230 } else { // audio track
1231 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1232 audio_frame_size += klv_fill_size(audio_frame_size);
1234 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1238 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1239 avio_wb32(pb, mxf->edit_units_count); // num of entries
1240 avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1242 for (i = 0; i < mxf->edit_units_count; i++) {
1243 int temporal_offset = 0;
1245 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1246 mxf->last_key_index = key_index;
1250 if (temporal_reordering) {
1251 int pic_num_in_gop = i - key_index;
1252 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1253 for (j = key_index; j < mxf->edit_units_count; j++) {
1254 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1257 if (j == mxf->edit_units_count)
1258 av_log(s, AV_LOG_WARNING, "missing frames\n");
1259 temporal_offset = j - key_index - pic_num_in_gop;
1262 avio_w8(pb, temporal_offset);
1264 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1265 avio_w8(pb, mxf->last_key_index - i);
1267 avio_w8(pb, key_index - i); // key frame offset
1268 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1269 mxf->last_key_index = key_index;
1272 if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1273 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1274 mxf->index_entries[i].flags |= 0x80; // random access
1275 avio_w8(pb, mxf->index_entries[i].flags);
1277 avio_wb64(pb, mxf->index_entries[i].offset);
1278 if (s->nb_streams > 1)
1279 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1282 mxf->last_key_index = key_index - mxf->edit_units_count;
1283 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1284 mxf->edit_units_count = 0;
1288 static void mxf_write_klv_fill(AVFormatContext *s)
1290 unsigned pad = klv_fill_size(avio_tell(s->pb));
1292 avio_write(s->pb, klv_fill_key, 16);
1294 klv_encode_ber4_length(s->pb, pad);
1297 assert(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1301 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1303 const uint8_t *key, int write_metadata)
1305 MXFContext *mxf = s->priv_data;
1306 AVIOContext *pb = s->pb;
1307 int64_t header_byte_count_offset;
1308 unsigned index_byte_count = 0;
1309 uint64_t partition_offset = avio_tell(pb);
1311 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1312 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1313 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1314 else if (mxf->edit_unit_byte_count && indexsid)
1315 index_byte_count = 80;
1317 if (index_byte_count) {
1318 // add encoded ber length
1319 index_byte_count += 16 + klv_ber_length(index_byte_count);
1320 index_byte_count += klv_fill_size(index_byte_count);
1323 if (!memcmp(key, body_partition_key, 16)) {
1324 mxf->body_partition_offset =
1325 av_realloc(mxf->body_partition_offset,
1326 (mxf->body_partitions_count+1)*
1327 sizeof(*mxf->body_partition_offset));
1328 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1332 avio_write(pb, key, 16);
1333 klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count);
1335 // write partition value
1336 avio_wb16(pb, 1); // majorVersion
1337 avio_wb16(pb, 2); // minorVersion
1338 avio_wb32(pb, KAG_SIZE); // KAGSize
1340 avio_wb64(pb, partition_offset); // ThisPartition
1342 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1343 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1344 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1345 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1349 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1352 header_byte_count_offset = avio_tell(pb);
1353 avio_wb64(pb, 0); // headerByteCount, update later
1356 avio_wb64(pb, index_byte_count); // indexByteCount
1357 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1360 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1361 avio_wb64(pb, mxf->body_offset);
1365 avio_wb32(pb, bodysid); // bodySID
1367 // operational pattern
1368 avio_write(pb, op1a_ul, 16);
1370 // essence container
1371 mxf_write_essence_container_refs(s);
1373 if (write_metadata) {
1374 // mark the start of the headermetadata and calculate metadata size
1376 unsigned header_byte_count;
1378 mxf_write_klv_fill(s);
1379 start = avio_tell(s->pb);
1380 mxf_write_primer_pack(s);
1381 mxf_write_header_metadata_sets(s);
1382 pos = avio_tell(s->pb);
1383 header_byte_count = pos - start + klv_fill_size(pos);
1385 // update header_byte_count
1386 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1387 avio_wb64(pb, header_byte_count);
1388 avio_seek(pb, pos, SEEK_SET);
1394 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1397 MXFContext *mxf = s->priv_data;
1398 MXFStreamContext *sc = st->priv_data;
1400 uint8_t* header_cid;
1401 unsigned int frame_size = 0;
1403 if (mxf->header_written)
1409 header_cid = pkt->data + 0x28;
1410 cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1412 if ((i = ff_dnxhd_get_cid_table(cid)) < 0)
1418 sc->component_depth = 10;
1428 sc->component_depth = 10;
1438 sc->component_depth = 10;
1453 frame_size = ff_dnxhd_cid_table[i].frame_size;
1455 mxf->edit_unit_byte_count = KAG_SIZE;
1456 for (i = 0; i < s->nb_streams; i++) {
1457 AVStream *st = s->streams[i];
1458 MXFStreamContext *sc = st->priv_data;
1459 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1460 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1461 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1462 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1463 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1464 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1471 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1473 MXFContext *mxf = s->priv_data;
1474 MXFStreamContext *sc = st->priv_data;
1475 uint8_t *vs_pack, *vsc_pack;
1476 int i, ul_index, frame_size, stype, pal;
1478 if (mxf->header_written)
1481 // Check for minimal frame size
1482 if (pkt->size < 120000)
1485 vs_pack = pkt->data + 80*5 + 48;
1486 vsc_pack = pkt->data + 80*5 + 53;
1487 stype = vs_pack[3] & 0x1f;
1488 pal = (vs_pack[3] >> 5) & 0x1;
1490 if ((vs_pack[2] & 0x07) == 0x02)
1491 sc->aspect_ratio = (AVRational){ 16, 9 };
1493 sc->aspect_ratio = (AVRational){ 4, 3 };
1495 sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1496 // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1497 // and set field dominance accordingly
1498 // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1501 case 0x18: // DV100 720p
1503 frame_size = pal ? 288000 : 240000;
1504 if (sc->interlaced) {
1505 av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive");
1509 case 0x14: // DV100 1080i
1511 frame_size = pal ? 576000 : 480000;
1515 frame_size = pal ? 288000 : 240000;
1519 frame_size = pal ? 144000 : 120000;
1522 sc->index = ul_index + 16;
1523 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1525 mxf->edit_unit_byte_count = KAG_SIZE;
1526 for (i = 0; i < s->nb_streams; i++) {
1527 AVStream *st = s->streams[i];
1528 MXFStreamContext *sc = st->priv_data;
1529 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1530 mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1531 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1532 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1533 mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1534 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1541 static const UID mxf_mpeg2_codec_uls[] = {
1542 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1543 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1544 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1545 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1546 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1547 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1548 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1549 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1550 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1551 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1554 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1556 int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1558 if (avctx->profile == 4) { // Main
1559 if (avctx->level == 8) // Main
1560 return &mxf_mpeg2_codec_uls[0+long_gop];
1561 else if (avctx->level == 4) // High
1562 return &mxf_mpeg2_codec_uls[4+long_gop];
1563 else if (avctx->level == 6) // High 14
1564 return &mxf_mpeg2_codec_uls[8+long_gop];
1565 } else if (avctx->profile == 0) { // 422
1566 if (avctx->level == 5) // Main
1567 return &mxf_mpeg2_codec_uls[2+long_gop];
1568 else if (avctx->level == 2) // High
1569 return &mxf_mpeg2_codec_uls[6+long_gop];
1574 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1575 AVPacket *pkt, MXFIndexEntry *e)
1577 MXFStreamContext *sc = st->priv_data;
1581 for(i = 0; i < pkt->size - 4; i++) {
1582 c = (c<<8) + pkt->data[i];
1584 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1585 st->codec->profile = pkt->data[i+1] & 0x07;
1586 st->codec->level = pkt->data[i+2] >> 4;
1587 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1588 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1590 sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1593 } else if (c == 0x1b8) { // gop
1594 if (pkt->data[i+4]>>6 & 0x01) { // closed
1596 if (e->flags & 0x40) // sequence header present
1597 e->flags |= 0x80; // random access
1599 } else if (c == 0x1b3) { // seq
1601 switch ((pkt->data[i+4]>>4) & 0xf) {
1602 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1603 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1604 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1606 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1607 st->codec->width, st->codec->height, 1024*1024);
1609 } else if (c == 0x100) { // pic
1610 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1611 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1612 if (pict_type == 2) { // P frame
1614 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1615 } else if (pict_type == 3) { // B frame
1617 e->flags |= 0x13; // only backward prediction
1620 sc->temporal_reordering = -1;
1621 } else if (!pict_type) {
1622 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1627 if (s->oformat != &ff_mxf_d10_muxer)
1628 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1629 return !!sc->codec_ul;
1632 static uint64_t mxf_parse_timestamp(time_t timestamp)
1634 struct tm *time = gmtime(×tamp);
1637 return (uint64_t)(time->tm_year+1900) << 48 |
1638 (uint64_t)(time->tm_mon+1) << 40 |
1639 (uint64_t) time->tm_mday << 32 |
1640 time->tm_hour << 24 |
1641 time->tm_min << 16 |
1645 static void mxf_gen_umid(AVFormatContext *s)
1647 MXFContext *mxf = s->priv_data;
1648 uint32_t seed = av_get_random_seed();
1649 uint64_t umid = seed + 0x5294713400000000LL;
1651 AV_WB64(mxf->umid , umid);
1652 AV_WB64(mxf->umid+8, umid>>8);
1654 mxf->instance_number = seed;
1657 static int mxf_write_header(AVFormatContext *s)
1659 MXFContext *mxf = s->priv_data;
1661 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1662 const int *samples_per_frame = NULL;
1663 AVDictionaryEntry *t;
1664 int64_t timestamp = 0;
1665 AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1670 for (i = 0; i < s->nb_streams; i++) {
1671 AVStream *st = s->streams[i];
1672 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1674 return AVERROR(ENOMEM);
1677 if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1678 av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1682 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1684 // Default component depth to 8
1685 sc->component_depth = 8;
1686 if (fabs(av_q2d(st->codec->time_base) - 1/25.0) < 0.0001) {
1687 samples_per_frame = PAL_samples_per_frame;
1688 mxf->time_base = (AVRational){ 1, 25 };
1689 mxf->timecode_base = 25;
1690 } else if (fabs(av_q2d(st->codec->time_base) - 1/50.0) < 0.0001) {
1691 samples_per_frame = PAL_50_samples_per_frame;
1692 mxf->time_base = (AVRational){ 1, 50 };
1693 mxf->timecode_base = 50;
1694 } else if (fabs(av_q2d(st->codec->time_base) - 1001/30000.0) < 0.0001) {
1695 samples_per_frame = NTSC_samples_per_frame;
1696 mxf->time_base = (AVRational){ 1001, 30000 };
1697 mxf->timecode_base = 30;
1698 } else if (fabs(av_q2d(st->codec->time_base) - 1001/60000.0) < 0.0001) {
1699 samples_per_frame = NTSC_60_samples_per_frame;
1700 mxf->time_base = (AVRational){ 1001, 60000 };
1701 mxf->timecode_base = 60;
1703 av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n");
1706 rate = (AVRational){mxf->time_base.den, mxf->time_base.num};
1707 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1709 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1711 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1713 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1716 if (s->oformat == &ff_mxf_d10_muxer) {
1717 if (st->codec->bit_rate == 50000000)
1718 if (mxf->time_base.den == 25) sc->index = 3;
1720 else if (st->codec->bit_rate == 40000000)
1721 if (mxf->time_base.den == 25) sc->index = 7;
1723 else if (st->codec->bit_rate == 30000000)
1724 if (mxf->time_base.den == 25) sc->index = 11;
1725 else sc->index = 13;
1727 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1731 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1732 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1733 mxf->time_base.num / (8*mxf->time_base.den);
1734 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1735 mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4;
1736 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1738 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1739 if (st->codec->sample_rate != 48000) {
1740 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1743 avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1744 if (s->oformat == &ff_mxf_d10_muxer) {
1745 if (st->index != 1) {
1746 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1749 if (st->codec->codec_id != CODEC_ID_PCM_S16LE &&
1750 st->codec->codec_id != CODEC_ID_PCM_S24LE) {
1751 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1753 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1755 mxf->slice_count = 1;
1759 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1760 if (sc->index == -1) {
1761 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1762 "codec not currently supported in container\n", i);
1767 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1769 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1770 sc->track_essence_element_key[15] = present[sc->index];
1771 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1773 if (!present[sc->index])
1774 mxf->essence_container_count++;
1775 present[sc->index]++;
1778 if (s->oformat == &ff_mxf_d10_muxer) {
1779 mxf->essence_container_count = 1;
1782 if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1785 for (i = 0; i < s->nb_streams; i++) {
1786 MXFStreamContext *sc = s->streams[i]->priv_data;
1787 // update element count
1788 sc->track_essence_element_key[13] = present[sc->index];
1789 if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1790 sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1792 sc->order = AV_RB32(sc->track_essence_element_key+12);
1795 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1796 timestamp = ff_iso8601_to_unix_time(t->value);
1798 mxf->timestamp = mxf_parse_timestamp(timestamp);
1801 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1802 if (!mxf->timecode_track)
1803 return AVERROR(ENOMEM);
1804 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1805 if (!mxf->timecode_track->priv_data)
1806 return AVERROR(ENOMEM);
1807 mxf->timecode_track->index = -1;
1809 if (!samples_per_frame)
1810 samples_per_frame = PAL_samples_per_frame;
1812 if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0)
1818 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1819 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 };
1821 static void mxf_write_system_item(AVFormatContext *s)
1823 MXFContext *mxf = s->priv_data;
1824 AVIOContext *pb = s->pb;
1828 frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1830 // write system metadata pack
1831 avio_write(pb, system_metadata_pack_key, 16);
1832 klv_encode_ber4_length(pb, 57);
1833 avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1834 avio_w8(pb, 0x04); // content package rate
1835 avio_w8(pb, 0x00); // content package type
1836 avio_wb16(pb, 0x00); // channel handle
1837 avio_wb16(pb, mxf->tc.start + frame); // continuity count
1838 if (mxf->essence_container_count > 1)
1839 avio_write(pb, multiple_desc_ul, 16);
1841 MXFStreamContext *sc = s->streams[0]->priv_data;
1842 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1846 avio_wb64(pb, 0); // creation date/time stamp
1848 avio_w8(pb, 0x81); // SMPTE 12M time code
1849 time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1850 avio_wb32(pb, time_code);
1851 avio_wb32(pb, 0); // binary group data
1854 // write system metadata package set
1855 avio_write(pb, system_metadata_package_set_key, 16);
1856 klv_encode_ber4_length(pb, 35);
1857 avio_w8(pb, 0x83); // UMID
1858 avio_wb16(pb, 0x20);
1859 mxf_write_umid(s, 1);
1862 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1864 MXFContext *mxf = s->priv_data;
1865 AVIOContext *pb = s->pb;
1866 int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1867 (8*mxf->time_base.den); // frame size
1870 packet_size += 16 + 4;
1871 packet_size += klv_fill_size(packet_size);
1873 klv_encode_ber4_length(pb, pkt->size);
1874 avio_write(pb, pkt->data, pkt->size);
1876 // ensure CBR muxing by padding to correct video frame size
1877 pad = packet_size - pkt->size - 16 - 4;
1879 avio_write(s->pb, klv_fill_key, 16);
1881 klv_encode_ber4_length(s->pb, pad);
1884 assert(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1886 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1887 for (; pad > 0; pad--)
1892 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1894 MXFContext *mxf = s->priv_data;
1895 AVIOContext *pb = s->pb;
1896 int frame_size = pkt->size / st->codec->block_align;
1897 uint8_t *samples = pkt->data;
1898 uint8_t *end = pkt->data + pkt->size;
1901 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1903 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1904 avio_wl16(pb, frame_size);
1905 avio_w8(pb, (1<<st->codec->channels)-1);
1907 while (samples < end) {
1908 for (i = 0; i < st->codec->channels; i++) {
1910 if (st->codec->codec_id == CODEC_ID_PCM_S24LE) {
1911 sample = AV_RL24(samples)<< 4;
1914 sample = AV_RL16(samples)<<12;
1917 avio_wl32(pb, sample | i);
1924 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1926 MXFContext *mxf = s->priv_data;
1927 AVIOContext *pb = s->pb;
1928 AVStream *st = s->streams[pkt->stream_index];
1929 MXFStreamContext *sc = st->priv_data;
1930 MXFIndexEntry ie = {0};
1932 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1933 mxf->index_entries = av_realloc(mxf->index_entries,
1934 (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1935 if (!mxf->index_entries) {
1936 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1941 if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
1942 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1943 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1946 } else if (st->codec->codec_id == CODEC_ID_DNXHD) {
1947 if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1948 av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1951 } else if (st->codec->codec_id == CODEC_ID_DVVIDEO) {
1952 if (!mxf_parse_dv_frame(s, st, pkt)) {
1953 av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1958 if (!mxf->header_written) {
1959 if (mxf->edit_unit_byte_count) {
1960 mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1961 mxf_write_klv_fill(s);
1962 mxf_write_index_table_segment(s);
1964 mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
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 mxf_write_partition(s, 1, 2, body_partition_key, 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 + 12*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;
2045 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2047 mxf_write_klv_fill(s);
2048 mxf->footer_partition_offset = avio_tell(pb);
2049 if (mxf->edit_unit_byte_count) { // no need to repeat index
2050 mxf_write_partition(s, 0, 0, footer_partition_key, 0);
2052 mxf_write_partition(s, 0, 2, footer_partition_key, 0);
2054 mxf_write_klv_fill(s);
2055 mxf_write_index_table_segment(s);
2058 mxf_write_klv_fill(s);
2059 mxf_write_random_index_pack(s);
2061 if (s->pb->seekable) {
2062 avio_seek(pb, 0, SEEK_SET);
2063 if (mxf->edit_unit_byte_count) {
2064 mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
2065 mxf_write_klv_fill(s);
2066 mxf_write_index_table_segment(s);
2068 mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
2074 ff_audio_interleave_close(s);
2076 av_freep(&mxf->index_entries);
2077 av_freep(&mxf->body_partition_offset);
2078 av_freep(&mxf->timecode_track->priv_data);
2079 av_freep(&mxf->timecode_track);
2086 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2088 int i, stream_count = 0;
2090 for (i = 0; i < s->nb_streams; i++)
2091 stream_count += !!s->streams[i]->last_in_packet_buffer;
2093 if (stream_count && (s->nb_streams == stream_count || flush)) {
2094 AVPacketList *pktl = s->packet_buffer;
2095 if (s->nb_streams != stream_count) {
2096 AVPacketList *last = NULL;
2097 // find last packet in edit unit
2099 if (!stream_count || pktl->pkt.stream_index == 0)
2105 // purge packet queue
2107 AVPacketList *next = pktl->next;
2109 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2110 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2111 av_free_packet(&pktl->pkt);
2118 s->packet_buffer = NULL;
2119 s->packet_buffer_end= NULL;
2122 pktl = s->packet_buffer;
2126 //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts);
2127 s->packet_buffer = pktl->next;
2128 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2129 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2130 if(!s->packet_buffer)
2131 s->packet_buffer_end= NULL;
2136 av_init_packet(out);
2141 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2143 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
2144 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2146 return next->dts > pkt->dts ||
2147 (next->dts == pkt->dts && sc->order < sc2->order);
2150 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2152 return ff_audio_rechunk_interleave(s, out, pkt, flush,
2153 mxf_interleave_get_packet, mxf_compare_timestamps);
2156 AVOutputFormat ff_mxf_muxer = {
2158 .long_name = NULL_IF_CONFIG_SMALL("Material eXchange Format"),
2159 .mime_type = "application/mxf",
2160 .extensions = "mxf",
2161 .priv_data_size = sizeof(MXFContext),
2162 .audio_codec = CODEC_ID_PCM_S16LE,
2163 .video_codec = CODEC_ID_MPEG2VIDEO,
2164 .write_header = mxf_write_header,
2165 .write_packet = mxf_write_packet,
2166 .write_trailer = mxf_write_footer,
2167 .flags = AVFMT_NOTIMESTAMPS,
2168 .interleave_packet = mxf_interleave,
2171 AVOutputFormat ff_mxf_d10_muxer = {
2173 .long_name = NULL_IF_CONFIG_SMALL("Material eXchange Format, D-10 Mapping"),
2174 .mime_type = "application/mxf",
2175 .priv_data_size = sizeof(MXFContext),
2176 .audio_codec = CODEC_ID_PCM_S16LE,
2177 .video_codec = CODEC_ID_MPEG2VIDEO,
2178 .write_header = mxf_write_header,
2179 .write_packet = mxf_write_packet,
2180 .write_trailer = mxf_write_footer,
2181 .flags = AVFMT_NOTIMESTAMPS,
2182 .interleave_packet = mxf_interleave,