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 Libav.
8 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
26 * SMPTE 377M MXF File Format Specifications
27 * SMPTE 379M MXF Generic Container
28 * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
29 * SMPTE RP210: SMPTE Metadata Dictionary
30 * SMPTE RP224: Registry of SMPTE Universal Labels
37 #include "libavutil/random_seed.h"
38 #include "libavutil/time_internal.h"
39 #include "libavcodec/bytestream.h"
40 #include "audiointerleave.h"
45 static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 };
46 static const int PAL_samples_per_frame[] = { 1920, 0 };
48 extern AVOutputFormat ff_mxf_d10_muxer;
50 #define EDIT_UNITS_PER_BODY 250
53 typedef struct MXFLocalTagPair {
58 typedef struct MXFIndexEntry {
61 unsigned slice_offset; ///< offset of audio slice
62 uint16_t temporal_ref;
65 typedef struct MXFStreamContext {
66 AudioInterleaveContext aic;
67 UID track_essence_element_key;
68 int index; ///< index in mxf_essence_container_uls table
70 int order; ///< interleaving order if dts are equal
71 int interlaced; ///< whether picture is interlaced
72 int temporal_reordering;
73 AVRational aspect_ratio; ///< display aspect ratio
74 int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
77 typedef struct MXFContainerEssenceEntry {
81 void (*write_desc)(AVFormatContext *, AVStream *);
82 } MXFContainerEssenceEntry;
87 } mxf_essence_mappings[] = {
88 { AV_CODEC_ID_MPEG2VIDEO, 0 },
89 { AV_CODEC_ID_PCM_S24LE, 1 },
90 { AV_CODEC_ID_PCM_S16LE, 1 },
94 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
95 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
96 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
97 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
98 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
100 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
101 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
102 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
103 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
104 mxf_write_mpegvideo_desc },
105 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
106 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
107 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
108 mxf_write_aes3_desc },
109 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
110 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
111 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
112 mxf_write_wav_desc },
113 // D-10 625/50 PAL 50mb/s
114 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
115 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
116 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
117 mxf_write_cdci_desc },
118 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
119 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
120 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
121 mxf_write_generic_sound_desc },
122 // D-10 525/60 NTSC 50mb/s
123 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
124 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
125 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
126 mxf_write_cdci_desc },
127 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
128 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
129 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
130 mxf_write_generic_sound_desc },
131 // D-10 625/50 PAL 40mb/s
132 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
133 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
134 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
135 mxf_write_cdci_desc },
136 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
137 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
138 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
139 mxf_write_generic_sound_desc },
140 // D-10 525/60 NTSC 40mb/s
141 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
142 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
143 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
144 mxf_write_cdci_desc },
145 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
146 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
147 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
148 mxf_write_generic_sound_desc },
149 // D-10 625/50 PAL 30mb/s
150 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
151 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
152 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
153 mxf_write_cdci_desc },
154 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
155 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
156 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
157 mxf_write_generic_sound_desc },
158 // D-10 525/60 NTSC 30mb/s
159 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
160 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
161 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
162 mxf_write_cdci_desc },
163 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
164 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
165 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
166 mxf_write_generic_sound_desc },
167 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
168 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
169 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
173 typedef struct MXFContext {
174 int64_t footer_partition_offset;
175 int essence_container_count;
176 AVRational time_base;
178 MXFIndexEntry *index_entries;
179 unsigned edit_units_count;
180 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
181 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
182 int last_indexed_edit_unit;
183 uint64_t *body_partition_offset;
184 unsigned body_partitions_count;
185 int last_key_index; ///< index of last key frame
187 AVStream *timecode_track;
188 int timecode_base; ///< rounded time code base (25 or 30)
189 int timecode_start; ///< frame number computed from mpeg-2 gop header timecode
190 int timecode_drop_frame; ///< time code use drop frame method frop mpeg-2 essence gop header
191 int edit_unit_byte_count; ///< fixed edit unit byte count
192 uint64_t body_offset;
193 uint32_t instance_number;
194 uint8_t umid[16]; ///< unique material identifier
197 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
198 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
201 * complete key for operation pattern, partitions, and primer pack
203 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
204 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
205 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
206 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
207 static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
208 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
209 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
210 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
211 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
214 * partial key for header metadata
216 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
217 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
220 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
222 static const MXFLocalTagPair mxf_local_tag_batch[] = {
224 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
225 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
226 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
227 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
228 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
229 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
230 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
231 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
233 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
234 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
235 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
236 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
237 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
238 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
240 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
241 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
242 // Essence Container Data
243 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
244 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
246 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
247 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
248 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
249 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
250 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
252 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
253 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
254 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
255 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
256 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
258 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
259 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
260 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
262 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
263 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
264 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
265 // Timecode Component
266 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
267 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
268 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
270 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
271 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
272 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
273 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
274 // Generic Picture Essence Descriptor
275 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
276 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
277 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
278 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
279 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
280 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
281 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
282 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
283 // CDCI Picture Essence Descriptor
284 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
285 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
286 // Generic Sound Essence Descriptor
287 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
288 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
289 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
290 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
291 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
292 // Index Table Segment
293 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
294 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
295 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
296 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
297 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
298 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
299 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
300 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
301 // MPEG video Descriptor
302 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
303 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
304 // Wave Audio Essence Descriptor
305 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
306 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
309 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
311 avio_write(pb, uuid_base, 12);
313 avio_wb16(pb, value);
316 static void mxf_write_umid(AVFormatContext *s, int type)
318 MXFContext *mxf = s->priv_data;
319 avio_write(s->pb, umid_ul, 13);
320 avio_wb24(s->pb, mxf->instance_number);
321 avio_write(s->pb, mxf->umid, 15);
322 avio_w8(s->pb, type);
325 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
327 avio_wb32(pb, ref_count);
331 static int klv_ber_length(uint64_t len)
336 return (av_log2(len) >> 3) + 2;
339 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
341 // Determine the best BER size
349 size = (av_log2(len) >> 3) + 1;
352 avio_w8(pb, 0x80 + size);
355 avio_w8(pb, len >> 8 * size & 0xff);
360 static void klv_encode_ber4_length(AVIOContext *pb, int len)
362 avio_w8(pb, 0x80 + 3);
367 * Get essence container ul index
369 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
372 for (i = 0; mxf_essence_mappings[i].id; i++)
373 if (mxf_essence_mappings[i].id == id)
374 return mxf_essence_mappings[i].index;
378 static void mxf_write_primer_pack(AVFormatContext *s)
380 AVIOContext *pb = s->pb;
381 int local_tag_number, i = 0;
383 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
385 avio_write(pb, primer_pack_key, 16);
386 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
388 avio_wb32(pb, local_tag_number); // local_tag num
389 avio_wb32(pb, 18); // item size, always 18 according to the specs
391 for (i = 0; i < local_tag_number; i++) {
392 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
393 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
397 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
403 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
405 avio_write(pb, header_metadata_key, 13);
406 avio_wb24(pb, value);
409 static void mxf_free(AVFormatContext *s)
413 for (i = 0; i < s->nb_streams; i++) {
414 AVStream *st = s->streams[i];
415 av_freep(&st->priv_data);
419 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
421 const MXFCodecUL *uls = ff_mxf_data_definition_uls;
422 while (uls->uid[0]) {
430 static void mxf_write_essence_container_refs(AVFormatContext *s)
432 MXFContext *c = s->priv_data;
433 AVIOContext *pb = s->pb;
436 mxf_write_refs_count(pb, c->essence_container_count);
437 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
438 for (i = 0; i < c->essence_container_count; i++) {
439 MXFStreamContext *sc = s->streams[i]->priv_data;
440 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
444 static void mxf_write_preface(AVFormatContext *s)
446 MXFContext *mxf = s->priv_data;
447 AVIOContext *pb = s->pb;
449 mxf_write_metadata_key(pb, 0x012f00);
450 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
451 klv_encode_ber_length(pb, 130 + 16LL * mxf->essence_container_count);
453 // write preface set uid
454 mxf_write_local_tag(pb, 16, 0x3C0A);
455 mxf_write_uuid(pb, Preface, 0);
456 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
458 // last modified date
459 mxf_write_local_tag(pb, 8, 0x3B02);
460 avio_wb64(pb, mxf->timestamp);
463 mxf_write_local_tag(pb, 2, 0x3B05);
464 avio_wb16(pb, 258); // v1.2
466 // write identification_refs
467 mxf_write_local_tag(pb, 16 + 8, 0x3B06);
468 mxf_write_refs_count(pb, 1);
469 mxf_write_uuid(pb, Identification, 0);
471 // write content_storage_refs
472 mxf_write_local_tag(pb, 16, 0x3B03);
473 mxf_write_uuid(pb, ContentStorage, 0);
475 // operational pattern
476 mxf_write_local_tag(pb, 16, 0x3B09);
477 avio_write(pb, op1a_ul, 16);
479 // write essence_container_refs
480 mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A);
481 mxf_write_essence_container_refs(s);
483 // write dm_scheme_refs
484 mxf_write_local_tag(pb, 8, 0x3B0B);
489 * Write a local tag containing an ascii string as utf-16
491 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
493 int i, size = strlen(value);
494 mxf_write_local_tag(pb, size*2, tag);
495 for (i = 0; i < size; i++)
496 avio_wb16(pb, value[i]);
499 static void mxf_write_identification(AVFormatContext *s)
501 MXFContext *mxf = s->priv_data;
502 AVIOContext *pb = s->pb;
503 const char *company = "Libav";
504 const char *product = "OP1a Muxer";
508 mxf_write_metadata_key(pb, 0x013000);
509 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
511 version = s->flags & AVFMT_FLAG_BITEXACT ?
512 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
513 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
514 klv_encode_ber_length(pb, length);
517 mxf_write_local_tag(pb, 16, 0x3C0A);
518 mxf_write_uuid(pb, Identification, 0);
519 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
521 // write generation uid
522 mxf_write_local_tag(pb, 16, 0x3C09);
523 mxf_write_uuid(pb, Identification, 1);
525 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
526 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
527 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
530 mxf_write_local_tag(pb, 16, 0x3C05);
531 mxf_write_uuid(pb, Identification, 2);
534 mxf_write_local_tag(pb, 8, 0x3C06);
535 avio_wb64(pb, mxf->timestamp);
538 static void mxf_write_content_storage(AVFormatContext *s)
540 AVIOContext *pb = s->pb;
542 mxf_write_metadata_key(pb, 0x011800);
543 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
544 klv_encode_ber_length(pb, 92);
547 mxf_write_local_tag(pb, 16, 0x3C0A);
548 mxf_write_uuid(pb, ContentStorage, 0);
549 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
551 // write package reference
552 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
553 mxf_write_refs_count(pb, 2);
554 mxf_write_uuid(pb, MaterialPackage, 0);
555 mxf_write_uuid(pb, SourcePackage, 0);
557 // write essence container data
558 mxf_write_local_tag(pb, 8 + 16, 0x1902);
559 mxf_write_refs_count(pb, 1);
560 mxf_write_uuid(pb, EssenceContainerData, 0);
563 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
565 MXFContext *mxf = s->priv_data;
566 AVIOContext *pb = s->pb;
567 MXFStreamContext *sc = st->priv_data;
569 mxf_write_metadata_key(pb, 0x013b00);
570 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
571 klv_encode_ber_length(pb, 80);
574 mxf_write_local_tag(pb, 16, 0x3C0A);
575 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
576 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
579 mxf_write_local_tag(pb, 4, 0x4801);
580 avio_wb32(pb, st->index+2);
582 // write track number
583 mxf_write_local_tag(pb, 4, 0x4804);
584 if (type == MaterialPackage)
585 avio_wb32(pb, 0); // track number of material package is 0
587 avio_write(pb, sc->track_essence_element_key + 12, 4);
589 mxf_write_local_tag(pb, 8, 0x4B01);
590 avio_wb32(pb, mxf->time_base.den);
591 avio_wb32(pb, mxf->time_base.num);
594 mxf_write_local_tag(pb, 8, 0x4B02);
597 // write sequence refs
598 mxf_write_local_tag(pb, 16, 0x4803);
599 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
602 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 };
604 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
606 MXFContext *mxf = s->priv_data;
607 AVIOContext *pb = s->pb;
609 // find data define uls
610 mxf_write_local_tag(pb, 16, 0x0201);
611 if (st == mxf->timecode_track)
612 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
614 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codecpar->codec_type);
615 avio_write(pb, data_def_ul->uid, 16);
619 mxf_write_local_tag(pb, 8, 0x0202);
620 avio_wb64(pb, mxf->duration);
623 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
625 MXFContext *mxf = s->priv_data;
626 AVIOContext *pb = s->pb;
627 enum MXFMetadataSetType component;
629 mxf_write_metadata_key(pb, 0x010f00);
630 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
631 klv_encode_ber_length(pb, 80);
633 mxf_write_local_tag(pb, 16, 0x3C0A);
634 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
636 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
637 mxf_write_common_fields(s, st);
639 // write structural component
640 mxf_write_local_tag(pb, 16 + 8, 0x1001);
641 mxf_write_refs_count(pb, 1);
642 if (st == mxf->timecode_track)
643 component = TimecodeComponent;
645 component = SourceClip;
646 if (type == SourcePackage)
647 component += TypeBottom;
648 mxf_write_uuid(pb, component, st->index);
651 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
653 MXFContext *mxf = s->priv_data;
654 AVIOContext *pb = s->pb;
656 mxf_write_metadata_key(pb, 0x011400);
657 klv_encode_ber_length(pb, 75);
660 mxf_write_local_tag(pb, 16, 0x3C0A);
661 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
662 TimecodeComponent + TypeBottom, st->index);
664 mxf_write_common_fields(s, st);
667 mxf_write_local_tag(pb, 8, 0x1501);
668 avio_wb64(pb, mxf->timecode_start);
670 // Rounded Time Code Base
671 mxf_write_local_tag(pb, 2, 0x1502);
672 avio_wb16(pb, mxf->timecode_base);
675 mxf_write_local_tag(pb, 1, 0x1503);
676 avio_w8(pb, mxf->timecode_drop_frame);
679 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
681 AVIOContext *pb = s->pb;
684 mxf_write_metadata_key(pb, 0x011100);
685 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
686 klv_encode_ber_length(pb, 108);
689 mxf_write_local_tag(pb, 16, 0x3C0A);
690 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
692 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
693 mxf_write_common_fields(s, st);
695 // write start_position
696 mxf_write_local_tag(pb, 8, 0x1201);
699 // write source package uid, end of the reference
700 mxf_write_local_tag(pb, 32, 0x1101);
701 if (type == SourcePackage) {
702 for (i = 0; i < 4; i++)
705 mxf_write_umid(s, 1);
707 // write source track id
708 mxf_write_local_tag(pb, 4, 0x1102);
709 if (type == SourcePackage)
712 avio_wb32(pb, st->index+2);
715 static void mxf_write_multi_descriptor(AVFormatContext *s)
717 MXFContext *mxf = s->priv_data;
718 AVIOContext *pb = s->pb;
722 mxf_write_metadata_key(pb, 0x014400);
723 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
724 klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
726 mxf_write_local_tag(pb, 16, 0x3C0A);
727 mxf_write_uuid(pb, MultipleDescriptor, 0);
728 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
731 mxf_write_local_tag(pb, 8, 0x3001);
732 avio_wb32(pb, mxf->time_base.den);
733 avio_wb32(pb, mxf->time_base.num);
735 // write essence container ul
736 mxf_write_local_tag(pb, 16, 0x3004);
737 if (mxf->essence_container_count > 1)
738 ul = multiple_desc_ul;
740 MXFStreamContext *sc = s->streams[0]->priv_data;
741 ul = mxf_essence_container_uls[sc->index].container_ul;
743 avio_write(pb, ul, 16);
745 // write sub descriptor refs
746 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
747 mxf_write_refs_count(pb, s->nb_streams);
748 for (i = 0; i < s->nb_streams; i++)
749 mxf_write_uuid(pb, SubDescriptor, i);
752 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
754 MXFContext *mxf = s->priv_data;
755 MXFStreamContext *sc = st->priv_data;
756 AVIOContext *pb = s->pb;
758 avio_write(pb, key, 16);
759 klv_encode_ber4_length(pb, size+20+8+12+20);
761 mxf_write_local_tag(pb, 16, 0x3C0A);
762 mxf_write_uuid(pb, SubDescriptor, st->index);
764 mxf_write_local_tag(pb, 4, 0x3006);
765 avio_wb32(pb, st->index+2);
767 mxf_write_local_tag(pb, 8, 0x3001);
768 avio_wb32(pb, mxf->time_base.den);
769 avio_wb32(pb, mxf->time_base.num);
771 mxf_write_local_tag(pb, 16, 0x3004);
772 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
775 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
776 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
777 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
778 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
779 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
781 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
783 MXFStreamContext *sc = st->priv_data;
784 AVIOContext *pb = s->pb;
785 int stored_height = (st->codecpar->height+15)/16*16;
789 mxf_write_generic_desc(s, st, key, size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20);
791 mxf_write_local_tag(pb, 4, 0x3203);
792 avio_wb32(pb, st->codecpar->width);
794 mxf_write_local_tag(pb, 4, 0x3202);
795 avio_wb32(pb, stored_height>>sc->interlaced);
797 mxf_write_local_tag(pb, 4, 0x3209);
798 avio_wb32(pb, st->codecpar->width);
800 if (st->codecpar->height == 608) // PAL + VBI
801 display_height = 576;
802 else if (st->codecpar->height == 512) // NTSC + VBI
803 display_height = 486;
805 display_height = st->codecpar->height;
807 mxf_write_local_tag(pb, 4, 0x3208);
808 avio_wb32(pb, display_height>>sc->interlaced);
811 mxf_write_local_tag(pb, 4, 0x3301);
814 // horizontal subsampling
815 mxf_write_local_tag(pb, 4, 0x3302);
819 mxf_write_local_tag(pb, 1, 0x320C);
820 avio_w8(pb, sc->interlaced);
823 switch (st->codecpar->height) {
824 case 576: f1 = 23; f2 = 336; break;
825 case 608: f1 = 7; f2 = 320; break;
826 case 480: f1 = 20; f2 = 283; break;
827 case 512: f1 = 7; f2 = 270; break;
828 case 720: f1 = 26; f2 = 0; break; // progressive
829 case 1080: f1 = 21; f2 = 584; break;
830 default: f1 = 0; f2 = 0; break;
833 if (!sc->interlaced) {
838 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
839 avio_wb32(pb, sc->interlaced ? 2 : 1);
845 mxf_write_local_tag(pb, 8, 0x320E);
846 avio_wb32(pb, sc->aspect_ratio.num);
847 avio_wb32(pb, sc->aspect_ratio.den);
849 mxf_write_local_tag(pb, 16, 0x3201);
850 avio_write(pb, *sc->codec_ul, 16);
853 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
855 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
858 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
860 AVIOContext *pb = s->pb;
861 int profile_and_level = (st->codecpar->profile<<4) | st->codecpar->level;
863 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
866 mxf_write_local_tag(pb, 4, 0x8000);
867 avio_wb32(pb, st->codecpar->bit_rate);
870 mxf_write_local_tag(pb, 1, 0x8007);
871 if (!st->codecpar->profile)
872 profile_and_level |= 0x80; // escape bit
873 avio_w8(pb, profile_and_level);
876 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
878 AVIOContext *pb = s->pb;
880 mxf_write_generic_desc(s, st, key, size+5+12+8+8);
883 mxf_write_local_tag(pb, 1, 0x3D02);
886 // write audio sampling rate
887 mxf_write_local_tag(pb, 8, 0x3D03);
888 avio_wb32(pb, st->codecpar->sample_rate);
891 mxf_write_local_tag(pb, 4, 0x3D07);
892 avio_wb32(pb, st->codecpar->channels);
894 mxf_write_local_tag(pb, 4, 0x3D01);
895 avio_wb32(pb, av_get_bits_per_sample(st->codecpar->codec_id));
898 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
900 AVIOContext *pb = s->pb;
902 mxf_write_generic_sound_common(s, st, key, size+6+8);
904 mxf_write_local_tag(pb, 2, 0x3D0A);
905 avio_wb16(pb, st->codecpar->block_align);
908 mxf_write_local_tag(pb, 4, 0x3D09);
909 avio_wb32(pb, st->codecpar->block_align*st->codecpar->sample_rate);
912 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
914 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
917 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
919 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
922 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
924 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
927 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
929 MXFContext *mxf = s->priv_data;
930 AVIOContext *pb = s->pb;
931 int i, track_count = s->nb_streams+1;
933 if (type == MaterialPackage) {
934 mxf_write_metadata_key(pb, 0x013600);
935 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
936 klv_encode_ber_length(pb, 92 + 16*track_count);
938 mxf_write_metadata_key(pb, 0x013700);
939 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
940 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
944 mxf_write_local_tag(pb, 16, 0x3C0A);
945 mxf_write_uuid(pb, type, 0);
946 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
947 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
949 // write package umid
950 mxf_write_local_tag(pb, 32, 0x4401);
951 mxf_write_umid(s, type == SourcePackage);
952 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
954 // package creation date
955 mxf_write_local_tag(pb, 8, 0x4405);
956 avio_wb64(pb, mxf->timestamp);
958 // package modified date
959 mxf_write_local_tag(pb, 8, 0x4404);
960 avio_wb64(pb, mxf->timestamp);
963 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
964 mxf_write_refs_count(pb, track_count);
965 mxf_write_uuid(pb, type == MaterialPackage ? Track :
966 Track + TypeBottom, -1); // timecode track
967 for (i = 0; i < s->nb_streams; i++)
968 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
970 // write multiple descriptor reference
971 if (type == SourcePackage) {
972 mxf_write_local_tag(pb, 16, 0x4701);
973 if (s->nb_streams > 1) {
974 mxf_write_uuid(pb, MultipleDescriptor, 0);
975 mxf_write_multi_descriptor(s);
977 mxf_write_uuid(pb, SubDescriptor, 0);
980 // write timecode track
981 mxf_write_track(s, mxf->timecode_track, type);
982 mxf_write_sequence(s, mxf->timecode_track, type);
983 mxf_write_timecode_component(s, mxf->timecode_track, type);
985 for (i = 0; i < s->nb_streams; i++) {
986 AVStream *st = s->streams[i];
987 mxf_write_track(s, st, type);
988 mxf_write_sequence(s, st, type);
989 mxf_write_structural_component(s, st, type);
991 if (type == SourcePackage) {
992 MXFStreamContext *sc = st->priv_data;
993 mxf_essence_container_uls[sc->index].write_desc(s, st);
998 static int mxf_write_essence_container_data(AVFormatContext *s)
1000 AVIOContext *pb = s->pb;
1002 mxf_write_metadata_key(pb, 0x012300);
1003 klv_encode_ber_length(pb, 72);
1005 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1006 mxf_write_uuid(pb, EssenceContainerData, 0);
1008 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1009 mxf_write_umid(s, 1);
1011 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1014 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1020 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1022 mxf_write_preface(s);
1023 mxf_write_identification(s);
1024 mxf_write_content_storage(s);
1025 mxf_write_package(s, MaterialPackage);
1026 mxf_write_package(s, SourcePackage);
1027 mxf_write_essence_container_data(s);
1031 static unsigned klv_fill_size(uint64_t size)
1033 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1034 if (pad < 20) // smallest fill item possible
1035 return pad + KAG_SIZE;
1037 return pad & (KAG_SIZE-1);
1040 static void mxf_write_index_table_segment(AVFormatContext *s)
1042 MXFContext *mxf = s->priv_data;
1043 AVIOContext *pb = s->pb;
1044 int i, j, temporal_reordering = 0;
1045 int key_index = mxf->last_key_index;
1047 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1049 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1052 avio_write(pb, index_table_segment_key, 16);
1054 if (mxf->edit_unit_byte_count) {
1055 klv_encode_ber_length(pb, 80);
1057 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1058 12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1062 mxf_write_local_tag(pb, 16, 0x3C0A);
1063 mxf_write_uuid(pb, IndexTableSegment, 0);
1066 mxf_write_local_tag(pb, 8, 0x3F0B);
1067 avio_wb32(pb, mxf->time_base.den);
1068 avio_wb32(pb, mxf->time_base.num);
1070 // index start position
1071 mxf_write_local_tag(pb, 8, 0x3F0C);
1072 avio_wb64(pb, mxf->last_indexed_edit_unit);
1075 mxf_write_local_tag(pb, 8, 0x3F0D);
1076 if (mxf->edit_unit_byte_count)
1077 avio_wb64(pb, 0); // index table covers whole container
1079 avio_wb64(pb, mxf->edit_units_count);
1081 // edit unit byte count
1082 mxf_write_local_tag(pb, 4, 0x3F05);
1083 avio_wb32(pb, mxf->edit_unit_byte_count);
1086 mxf_write_local_tag(pb, 4, 0x3F06);
1090 mxf_write_local_tag(pb, 4, 0x3F07);
1093 if (!mxf->edit_unit_byte_count) {
1094 // real slice count - 1
1095 mxf_write_local_tag(pb, 1, 0x3F08);
1096 avio_w8(pb, mxf->slice_count);
1098 // delta entry array
1099 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1100 avio_wb32(pb, s->nb_streams+1); // num of entries
1101 avio_wb32(pb, 6); // size of one entry
1102 // write system item delta entry
1104 avio_w8(pb, 0); // slice entry
1105 avio_wb32(pb, 0); // element delta
1106 for (i = 0; i < s->nb_streams; i++) {
1107 AVStream *st = s->streams[i];
1108 MXFStreamContext *sc = st->priv_data;
1109 avio_w8(pb, sc->temporal_reordering);
1110 if (sc->temporal_reordering)
1111 temporal_reordering = 1;
1112 if (i == 0) { // video track
1113 avio_w8(pb, 0); // slice number
1114 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1115 } else { // audio track
1116 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1117 audio_frame_size += klv_fill_size(audio_frame_size);
1119 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1123 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1124 avio_wb32(pb, mxf->edit_units_count); // num of entries
1125 avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry
1127 for (i = 0; i < mxf->edit_units_count; i++) {
1128 int temporal_offset = 0;
1130 if (!(mxf->index_entries[i].flags & 0x33)) { // I-frame
1131 mxf->last_key_index = key_index;
1135 if (temporal_reordering) {
1136 int pic_num_in_gop = i - key_index;
1137 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1138 for (j = key_index; j < mxf->edit_units_count; j++) {
1139 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1142 if (j == mxf->edit_units_count)
1143 av_log(s, AV_LOG_WARNING, "missing frames\n");
1144 temporal_offset = j - key_index - pic_num_in_gop;
1147 avio_w8(pb, temporal_offset);
1149 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1150 avio_w8(pb, mxf->last_key_index - i);
1152 avio_w8(pb, key_index - i); // key frame offset
1153 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1154 mxf->last_key_index = key_index;
1157 if (!(mxf->index_entries[i].flags & 0x33) && // I-frame
1158 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1159 mxf->index_entries[i].flags |= 0x80; // random access
1160 avio_w8(pb, mxf->index_entries[i].flags);
1162 avio_wb64(pb, mxf->index_entries[i].offset);
1163 if (s->nb_streams > 1)
1164 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1167 mxf->last_key_index = key_index - mxf->edit_units_count;
1168 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1169 mxf->edit_units_count = 0;
1173 static void mxf_write_klv_fill(AVFormatContext *s)
1175 unsigned pad = klv_fill_size(avio_tell(s->pb));
1177 avio_write(s->pb, klv_fill_key, 16);
1179 klv_encode_ber4_length(s->pb, pad);
1182 assert(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1186 static int mxf_write_partition(AVFormatContext *s, int bodysid,
1188 const uint8_t *key, int write_metadata)
1190 MXFContext *mxf = s->priv_data;
1191 AVIOContext *pb = s->pb;
1192 int64_t header_byte_count_offset;
1193 unsigned index_byte_count = 0;
1194 uint64_t partition_offset = avio_tell(pb);
1197 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1198 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1199 12+mxf->edit_units_count*(11+mxf->slice_count*4);
1200 else if (mxf->edit_unit_byte_count && indexsid)
1201 index_byte_count = 80;
1203 if (index_byte_count) {
1204 // add encoded ber length
1205 index_byte_count += 16 + klv_ber_length(index_byte_count);
1206 index_byte_count += klv_fill_size(index_byte_count);
1209 if (!memcmp(key, body_partition_key, 16)) {
1210 if ((err = av_reallocp_array(&mxf->body_partition_offset, mxf->body_partitions_count + 1,
1211 sizeof(*mxf->body_partition_offset))) < 0) {
1212 mxf->body_partitions_count = 0;
1215 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1219 avio_write(pb, key, 16);
1220 klv_encode_ber_length(pb, 88 + 16LL * mxf->essence_container_count);
1222 // write partition value
1223 avio_wb16(pb, 1); // majorVersion
1224 avio_wb16(pb, 2); // minorVersion
1225 avio_wb32(pb, KAG_SIZE); // KAGSize
1227 avio_wb64(pb, partition_offset); // ThisPartition
1229 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1230 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1231 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1232 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1236 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1239 header_byte_count_offset = avio_tell(pb);
1240 avio_wb64(pb, 0); // headerByteCount, update later
1243 avio_wb64(pb, index_byte_count); // indexByteCount
1244 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1247 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1248 avio_wb64(pb, mxf->body_offset);
1252 avio_wb32(pb, bodysid); // bodySID
1254 // operational pattern
1255 avio_write(pb, op1a_ul, 16);
1257 // essence container
1258 mxf_write_essence_container_refs(s);
1260 if (write_metadata) {
1261 // mark the start of the headermetadata and calculate metadata size
1263 unsigned header_byte_count;
1265 mxf_write_klv_fill(s);
1266 start = avio_tell(s->pb);
1267 mxf_write_primer_pack(s);
1268 mxf_write_header_metadata_sets(s);
1269 pos = avio_tell(s->pb);
1270 header_byte_count = pos - start + klv_fill_size(pos);
1272 // update header_byte_count
1273 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1274 avio_wb64(pb, header_byte_count);
1275 avio_seek(pb, pos, SEEK_SET);
1283 static const UID mxf_mpeg2_codec_uls[] = {
1284 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1285 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1286 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1287 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1288 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1289 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1290 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1291 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1292 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1293 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1296 static const UID *mxf_get_mpeg2_codec_ul(AVCodecParameters *par)
1300 if (par->profile == 4) { // Main
1301 if (par->level == 8) // Main
1302 return &mxf_mpeg2_codec_uls[0+long_gop];
1303 else if (par->level == 4) // High
1304 return &mxf_mpeg2_codec_uls[4+long_gop];
1305 else if (par->level == 6) // High 14
1306 return &mxf_mpeg2_codec_uls[8+long_gop];
1307 } else if (par->profile == 0) { // 422
1308 if (par->level == 5) // Main
1309 return &mxf_mpeg2_codec_uls[2+long_gop];
1310 else if (par->level == 2) // High
1311 return &mxf_mpeg2_codec_uls[6+long_gop];
1316 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1317 AVPacket *pkt, MXFIndexEntry *e)
1319 MXFStreamContext *sc = st->priv_data;
1320 MXFContext *mxf = s->priv_data;
1324 for(i = 0; i < pkt->size - 4; i++) {
1325 c = (c<<8) + pkt->data[i];
1327 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1328 st->codecpar->profile = pkt->data[i+1] & 0x07;
1329 st->codecpar->level = pkt->data[i+2] >> 4;
1330 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1331 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1334 } else if (c == 0x1b8) { // gop
1335 if (pkt->data[i+4]>>6 & 0x01) { // closed
1337 if (e->flags & 0x40) // sequence header present
1338 e->flags |= 0x80; // random access
1340 if (!mxf->header_written) {
1341 unsigned hours = (pkt->data[i+1]>>2) & 0x1f;
1342 unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4);
1343 unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5);
1344 unsigned frames = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7);
1345 mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80);
1346 mxf->timecode_start = (hours*3600 + minutes*60 + seconds) *
1347 mxf->timecode_base + frames;
1348 if (mxf->timecode_drop_frame) {
1349 unsigned tminutes = 60 * hours + minutes;
1350 mxf->timecode_start -= 2 * (tminutes - tminutes / 10);
1352 av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start,
1353 hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames);
1355 } else if (c == 0x1b3) { // seq
1357 switch ((pkt->data[i+4]>>4) & 0xf) {
1358 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
1359 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
1360 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
1362 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1363 st->codecpar->width, st->codecpar->height, 1024*1024);
1365 } else if (c == 0x100) { // pic
1366 int pict_type = (pkt->data[i+2]>>3) & 0x07;
1367 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1368 if (pict_type == 2) { // P-frame
1370 sc->closed_gop = 0; // reset closed GOP, don't matter anymore
1371 } else if (pict_type == 3) { // B-frame
1373 e->flags |= 0x13; // only backward prediction
1376 sc->temporal_reordering = -1;
1377 } else if (!pict_type) {
1378 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1383 if (s->oformat != &ff_mxf_d10_muxer)
1384 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codecpar);
1385 return !!sc->codec_ul;
1388 static uint64_t mxf_parse_timestamp(time_t timestamp)
1391 struct tm *time = gmtime_r(×tamp, &tmbuf);
1394 return (uint64_t)(time->tm_year+1900) << 48 |
1395 (uint64_t)(time->tm_mon+1) << 40 |
1396 (uint64_t) time->tm_mday << 32 |
1397 time->tm_hour << 24 |
1398 time->tm_min << 16 |
1402 static void mxf_gen_umid(AVFormatContext *s)
1404 MXFContext *mxf = s->priv_data;
1405 uint32_t seed = av_get_random_seed();
1406 uint64_t umid = seed + 0x5294713400000000LL;
1408 AV_WB64(mxf->umid , umid);
1409 AV_WB64(mxf->umid+8, umid>>8);
1411 mxf->instance_number = seed;
1414 static int mxf_write_header(AVFormatContext *s)
1416 MXFContext *mxf = s->priv_data;
1418 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1419 const int *samples_per_frame = NULL;
1420 AVDictionaryEntry *t;
1421 int64_t timestamp = 0;
1426 for (i = 0; i < s->nb_streams; i++) {
1427 AVStream *st = s->streams[i];
1428 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1430 return AVERROR(ENOMEM);
1433 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1435 av_log(s, AV_LOG_ERROR, "video stream must be first track\n");
1438 // TODO: should be avg_frame_rate
1439 if (fabs(av_q2d(st->time_base) - 1/25.0) < 0.0001) {
1440 samples_per_frame = PAL_samples_per_frame;
1441 mxf->time_base = (AVRational){ 1, 25 };
1442 mxf->timecode_base = 25;
1443 } else if (fabs(av_q2d(st->time_base) - 1001/30000.0) < 0.0001) {
1444 samples_per_frame = NTSC_samples_per_frame;
1445 mxf->time_base = (AVRational){ 1001, 30000 };
1446 mxf->timecode_base = 30;
1448 av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n");
1451 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1452 if (s->oformat == &ff_mxf_d10_muxer) {
1453 if (st->codecpar->bit_rate == 50000000)
1454 if (mxf->time_base.den == 25) sc->index = 3;
1456 else if (st->codecpar->bit_rate == 40000000)
1457 if (mxf->time_base.den == 25) sc->index = 7;
1459 else if (st->codecpar->bit_rate == 30000000)
1460 if (mxf->time_base.den == 25) sc->index = 11;
1461 else sc->index = 13;
1463 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1467 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1468 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codecpar->bit_rate *
1469 mxf->time_base.num / (8*mxf->time_base.den);
1470 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1471 mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4;
1472 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1474 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
1475 if (st->codecpar->sample_rate != 48000) {
1476 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1479 avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
1480 if (s->oformat == &ff_mxf_d10_muxer) {
1481 if (st->index != 1) {
1482 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1485 if (st->codecpar->codec_id != AV_CODEC_ID_PCM_S16LE &&
1486 st->codecpar->codec_id != AV_CODEC_ID_PCM_S24LE) {
1487 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1489 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1491 mxf->slice_count = 1;
1495 sc->index = mxf_get_essence_container_ul_index(st->codecpar->codec_id);
1496 if (sc->index == -1) {
1497 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1498 "codec not currently supported in container\n", i);
1503 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1505 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1506 sc->track_essence_element_key[15] = present[sc->index];
1507 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1509 if (!present[sc->index])
1510 mxf->essence_container_count++;
1511 present[sc->index]++;
1514 if (s->oformat == &ff_mxf_d10_muxer) {
1515 mxf->essence_container_count = 1;
1518 if (!(s->flags & AVFMT_FLAG_BITEXACT))
1521 for (i = 0; i < s->nb_streams; i++) {
1522 MXFStreamContext *sc = s->streams[i]->priv_data;
1523 // update element count
1524 sc->track_essence_element_key[13] = present[sc->index];
1525 sc->order = AV_RB32(sc->track_essence_element_key+12);
1528 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1529 timestamp = ff_iso8601_to_unix_time(t->value);
1531 mxf->timestamp = mxf_parse_timestamp(timestamp);
1534 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1535 if (!mxf->timecode_track)
1536 return AVERROR(ENOMEM);
1537 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1538 if (!mxf->timecode_track->priv_data)
1539 return AVERROR(ENOMEM);
1540 mxf->timecode_track->index = -1;
1542 if (!samples_per_frame)
1543 samples_per_frame = PAL_samples_per_frame;
1545 if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0)
1551 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1552 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 };
1554 static uint32_t framenum_to_12m_time_code(unsigned frame, int drop, int fps)
1556 return (0 << 31) | // color frame flag
1557 (drop << 30) | // drop frame flag
1558 ( ((frame % fps) / 10) << 28) | // tens of frames
1559 ( ((frame % fps) % 10) << 24) | // units of frames
1560 (0 << 23) | // field phase (NTSC), b0 (PAL)
1561 ((((frame / fps) % 60) / 10) << 20) | // tens of seconds
1562 ((((frame / fps) % 60) % 10) << 16) | // units of seconds
1563 (0 << 15) | // b0 (NTSC), b2 (PAL)
1564 ((((frame / (fps * 60)) % 60) / 10) << 12) | // tens of minutes
1565 ((((frame / (fps * 60)) % 60) % 10) << 8) | // units of minutes
1567 (0 << 6) | // b2 (NTSC), field phase (PAL)
1568 ((((frame / (fps * 3600) % 24)) / 10) << 4) | // tens of hours
1569 ( (frame / (fps * 3600) % 24)) % 10; // units of hours
1572 static void mxf_write_system_item(AVFormatContext *s)
1574 MXFContext *mxf = s->priv_data;
1575 AVIOContext *pb = s->pb;
1579 frame = mxf->timecode_start + mxf->last_indexed_edit_unit + mxf->edit_units_count;
1581 // write system metadata pack
1582 avio_write(pb, system_metadata_pack_key, 16);
1583 klv_encode_ber4_length(pb, 57);
1584 avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1585 avio_w8(pb, 0x04); // content package rate
1586 avio_w8(pb, 0x00); // content package type
1587 avio_wb16(pb, 0x00); // channel handle
1588 avio_wb16(pb, frame); // continuity count
1589 if (mxf->essence_container_count > 1)
1590 avio_write(pb, multiple_desc_ul, 16);
1592 MXFStreamContext *sc = s->streams[0]->priv_data;
1593 avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1597 avio_wb64(pb, 0); // creation date/time stamp
1599 avio_w8(pb, 0x81); // SMPTE 12M time code
1600 time_code = framenum_to_12m_time_code(frame, mxf->timecode_drop_frame,
1601 mxf->timecode_base);
1602 avio_wb32(pb, time_code);
1603 avio_wb32(pb, 0); // binary group data
1606 // write system metadata package set
1607 avio_write(pb, system_metadata_package_set_key, 16);
1608 klv_encode_ber4_length(pb, 35);
1609 avio_w8(pb, 0x83); // UMID
1610 avio_wb16(pb, 0x20);
1611 mxf_write_umid(s, 1);
1614 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1616 MXFContext *mxf = s->priv_data;
1617 AVIOContext *pb = s->pb;
1618 int packet_size = (uint64_t)st->codecpar->bit_rate*mxf->time_base.num /
1619 (8*mxf->time_base.den); // frame size
1622 packet_size += 16 + 4;
1623 packet_size += klv_fill_size(packet_size);
1625 klv_encode_ber4_length(pb, pkt->size);
1626 avio_write(pb, pkt->data, pkt->size);
1628 // ensure CBR muxing by padding to correct video frame size
1629 pad = packet_size - pkt->size - 16 - 4;
1631 avio_write(s->pb, klv_fill_key, 16);
1633 klv_encode_ber4_length(s->pb, pad);
1636 assert(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1638 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1639 for (; pad > 0; pad--)
1644 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1646 MXFContext *mxf = s->priv_data;
1647 AVIOContext *pb = s->pb;
1648 int frame_size = pkt->size / st->codecpar->block_align;
1649 uint8_t *samples = pkt->data;
1650 uint8_t *end = pkt->data + pkt->size;
1653 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1655 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1656 avio_wl16(pb, frame_size);
1657 avio_w8(pb, (1<<st->codecpar->channels)-1);
1659 while (samples < end) {
1660 for (i = 0; i < st->codecpar->channels; i++) {
1662 if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
1663 sample = AV_RL24(samples)<< 4;
1666 sample = AV_RL16(samples)<<12;
1669 avio_wl32(pb, sample | i);
1676 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1678 MXFContext *mxf = s->priv_data;
1679 AVIOContext *pb = s->pb;
1680 AVStream *st = s->streams[pkt->stream_index];
1681 MXFStreamContext *sc = st->priv_data;
1682 MXFIndexEntry ie = {0};
1685 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1686 if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
1687 + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
1688 mxf->edit_units_count = 0;
1689 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1694 if (st->codecpar->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1695 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1696 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1701 if (!mxf->header_written) {
1702 if (mxf->edit_unit_byte_count) {
1703 if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
1705 mxf_write_klv_fill(s);
1706 mxf_write_index_table_segment(s);
1708 if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
1711 mxf->header_written = 1;
1714 if (st->index == 0) {
1715 if (!mxf->edit_unit_byte_count &&
1716 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1717 !(ie.flags & 0x33)) { // I-frame, GOP start
1718 mxf_write_klv_fill(s);
1719 if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
1721 mxf_write_klv_fill(s);
1722 mxf_write_index_table_segment(s);
1725 mxf_write_klv_fill(s);
1726 mxf_write_system_item(s);
1728 if (!mxf->edit_unit_byte_count) {
1729 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1730 mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
1731 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
1732 mxf->body_offset += KAG_SIZE; // size of system element
1734 mxf->edit_units_count++;
1735 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1736 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1737 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1740 mxf_write_klv_fill(s);
1741 avio_write(pb, sc->track_essence_element_key, 16); // write key
1742 if (s->oformat == &ff_mxf_d10_muxer) {
1743 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1744 mxf_write_d10_video_packet(s, st, pkt);
1746 mxf_write_d10_audio_packet(s, st, pkt);
1748 klv_encode_ber4_length(pb, pkt->size); // write length
1749 avio_write(pb, pkt->data, pkt->size);
1750 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
1758 static void mxf_write_random_index_pack(AVFormatContext *s)
1760 MXFContext *mxf = s->priv_data;
1761 AVIOContext *pb = s->pb;
1762 uint64_t pos = avio_tell(pb);
1765 avio_write(pb, random_index_pack_key, 16);
1766 klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
1768 if (mxf->edit_unit_byte_count)
1769 avio_wb32(pb, 1); // BodySID of header partition
1772 avio_wb64(pb, 0); // offset of header partition
1774 for (i = 0; i < mxf->body_partitions_count; i++) {
1775 avio_wb32(pb, 1); // BodySID
1776 avio_wb64(pb, mxf->body_partition_offset[i]);
1779 avio_wb32(pb, 0); // BodySID of footer partition
1780 avio_wb64(pb, mxf->footer_partition_offset);
1782 avio_wb32(pb, avio_tell(pb) - pos + 4);
1785 static int mxf_write_footer(AVFormatContext *s)
1787 MXFContext *mxf = s->priv_data;
1788 AVIOContext *pb = s->pb;
1791 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1793 mxf_write_klv_fill(s);
1794 mxf->footer_partition_offset = avio_tell(pb);
1795 if (mxf->edit_unit_byte_count) { // no need to repeat index
1796 if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
1799 if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
1801 mxf_write_klv_fill(s);
1802 mxf_write_index_table_segment(s);
1805 mxf_write_klv_fill(s);
1806 mxf_write_random_index_pack(s);
1808 if (s->pb->seekable) {
1809 avio_seek(pb, 0, SEEK_SET);
1810 if (mxf->edit_unit_byte_count) {
1811 if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
1813 mxf_write_klv_fill(s);
1814 mxf_write_index_table_segment(s);
1816 if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
1821 ff_audio_interleave_close(s);
1823 av_freep(&mxf->index_entries);
1824 av_freep(&mxf->body_partition_offset);
1825 av_freep(&mxf->timecode_track->priv_data);
1826 av_freep(&mxf->timecode_track);
1833 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1835 int i, stream_count = 0;
1837 for (i = 0; i < s->nb_streams; i++)
1838 stream_count += !!s->streams[i]->last_in_packet_buffer;
1840 if (stream_count && (s->nb_streams == stream_count || flush)) {
1841 AVPacketList *pktl = s->internal->packet_buffer;
1842 if (s->nb_streams != stream_count) {
1843 AVPacketList *last = NULL;
1844 // find last packet in edit unit
1846 if (!stream_count || pktl->pkt.stream_index == 0)
1852 // purge packet queue
1854 AVPacketList *next = pktl->next;
1856 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
1857 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
1858 av_packet_unref(&pktl->pkt);
1865 s->internal->packet_buffer = NULL;
1866 s->internal->packet_buffer_end= NULL;
1869 pktl = s->internal->packet_buffer;
1873 av_log(s, AV_LOG_TRACE, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
1874 s->internal->packet_buffer = pktl->next;
1875 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
1876 s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
1877 if(!s->internal->packet_buffer)
1878 s->internal->packet_buffer_end= NULL;
1883 av_init_packet(out);
1888 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
1890 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
1891 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
1893 return next->dts > pkt->dts ||
1894 (next->dts == pkt->dts && sc->order < sc2->order);
1897 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1899 return ff_audio_rechunk_interleave(s, out, pkt, flush,
1900 mxf_interleave_get_packet, mxf_compare_timestamps);
1903 AVOutputFormat ff_mxf_muxer = {
1905 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
1906 .mime_type = "application/mxf",
1907 .extensions = "mxf",
1908 .priv_data_size = sizeof(MXFContext),
1909 .audio_codec = AV_CODEC_ID_PCM_S16LE,
1910 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
1911 .write_header = mxf_write_header,
1912 .write_packet = mxf_write_packet,
1913 .write_trailer = mxf_write_footer,
1914 .flags = AVFMT_NOTIMESTAMPS,
1915 .interleave_packet = mxf_interleave,
1918 AVOutputFormat ff_mxf_d10_muxer = {
1920 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
1921 .mime_type = "application/mxf",
1922 .priv_data_size = sizeof(MXFContext),
1923 .audio_codec = AV_CODEC_ID_PCM_S16LE,
1924 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
1925 .write_header = mxf_write_header,
1926 .write_packet = mxf_write_packet,
1927 .write_trailer = mxf_write_footer,
1928 .flags = AVFMT_NOTIMESTAMPS,
1929 .interleave_packet = mxf_interleave,