set channel number even for inactive channels
[ffmpeg.git] / libavformat / mxfenc.c
1 /*
2  * MXF muxer
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>
5  *
6  * This file is part of FFmpeg.
7  *
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.
12  *
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.
17  *
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
21  */
22
23 /*
24  * References
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
31  */
32
33 //#define DEBUG
34
35 #include <math.h>
36 #include <time.h>
37
38 #include "libavutil/fifo.h"
39 #include "libavcodec/bytestream.h"
40 #include "audiointerleave.h"
41 #include "avformat.h"
42 #include "mxf.h"
43
44 static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 };
45 static const int PAL_samples_per_frame[]  = { 1920, 0 };
46
47 AVOutputFormat mxf_d10_muxer;
48
49 #define EDIT_UNITS_PER_BODY 250
50 #define KAG_SIZE 512
51
52 typedef struct {
53     int local_tag;
54     UID uid;
55 } MXFLocalTagPair;
56
57 typedef struct {
58     uint8_t flags;
59     uint64_t offset;
60     unsigned slice_offset; ///< offset of audio slice
61 } MXFIndexEntry;
62
63 typedef struct {
64     AudioInterleaveContext aic;
65     UID track_essence_element_key;
66     int index;            ///< index in mxf_essence_container_uls table
67     const UID *codec_ul;
68     int order;            ///< interleaving order if dts are equal
69     int interlaced;       ///< wether picture is interlaced
70     int temporal_reordering;
71     AVRational aspect_ratio; ///< display aspect ratio
72 } MXFStreamContext;
73
74 typedef struct {
75     UID container_ul;
76     UID element_ul;
77     UID codec_ul;
78     void (*write_desc)();
79 } MXFContainerEssenceEntry;
80
81 static const struct {
82     enum CodecID id;
83     int index;
84 } mxf_essence_mappings[] = {
85     { CODEC_ID_MPEG2VIDEO, 0 },
86     { CODEC_ID_PCM_S24LE,  1 },
87     { CODEC_ID_PCM_S16LE,  1 },
88     { 0 }
89 };
90
91 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
92 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
93 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
94 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
95 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
96
97 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
98     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
99       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
100       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
101       mxf_write_mpegvideo_desc },
102     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
103       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
104       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
105       mxf_write_aes3_desc },
106     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
107       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
108       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
109       mxf_write_wav_desc },
110     // D-10 625/50 PAL 50mb/s
111     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
112       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
113       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
114       mxf_write_cdci_desc },
115     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
116       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
117       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
118       mxf_write_generic_sound_desc },
119     // D-10 525/60 NTSC 50mb/s
120     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
121       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
122       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
123       mxf_write_cdci_desc },
124     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
125       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
126       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
127       mxf_write_generic_sound_desc },
128     // D-10 625/50 PAL 40mb/s
129     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
130       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
131       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
132       mxf_write_cdci_desc },
133     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
134       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
135       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
136       mxf_write_generic_sound_desc },
137     // D-10 525/60 NTSC 40mb/s
138     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
139       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
140       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
141       mxf_write_cdci_desc },
142     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
143       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
144       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
145       mxf_write_generic_sound_desc },
146     // D-10 625/50 PAL 30mb/s
147     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
148       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
149       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
150       mxf_write_cdci_desc },
151     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
152       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
153       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
154       mxf_write_generic_sound_desc },
155     // D-10 525/60 NTSC 30mb/s
156     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
157       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
158       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
159       mxf_write_cdci_desc },
160     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
161       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
162       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
163       mxf_write_generic_sound_desc },
164     { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
165       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
166       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
167       NULL },
168 };
169
170 typedef struct MXFContext {
171     int64_t footer_partition_offset;
172     int essence_container_count;
173     AVRational time_base;
174     int header_written;
175     MXFIndexEntry *index_entries;
176     unsigned edit_units_count;
177     uint64_t timestamp;   ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
178     uint8_t slice_count;  ///< index slice count minus 1 (1 if no audio, 0 otherwise)
179     int last_indexed_edit_unit;
180     uint64_t *body_partition_offset;
181     unsigned body_partitions_count;
182     int last_key_index;  ///< index of last key frame
183     uint64_t duration;
184     AVStream *timecode_track;
185     int timecode_base;       ///< rounded time code base (25 or 30)
186     int timecode_start;      ///< frame number computed from mpeg-2 gop header timecode
187     int timecode_drop_frame; ///< time code use drop frame method frop mpeg-2 essence gop header
188     int edit_unit_byte_count; ///< fixed edit unit byte count
189     uint64_t body_offset;
190 } MXFContext;
191
192 static const uint8_t uuid_base[]            = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
193 static const uint8_t umid_base[]            = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13,0x00,0x00,0x00 };
194
195 /**
196  * complete key for operation pattern, partitions, and primer pack
197  */
198 static const uint8_t op1a_ul[]                     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
199 static const uint8_t footer_partition_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
200 static const uint8_t primer_pack_key[]             = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
201 static const uint8_t index_table_segment_key[]     = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
202 static const uint8_t random_index_pack_key[]       = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
203 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
204 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
205 static const uint8_t klv_fill_key[]                = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
206 static const uint8_t body_partition_key[]          = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
207
208 /**
209  * partial key for header metadata
210  */
211 static const uint8_t header_metadata_key[]  = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
212 static const uint8_t multiple_desc_ul[]     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
213
214 /**
215  * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
216  */
217 static const MXFLocalTagPair mxf_local_tag_batch[] = {
218     // preface set
219     { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
220     { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
221     { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
222     { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
223     { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
224     { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
225     { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
226     { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
227     // Identification
228     { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
229     { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
230     { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
231     { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
232     { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
233     { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
234     // Content Storage
235     { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
236     { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
237     // Essence Container Data
238     { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
239     { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
240     // Package
241     { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
242     { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
243     { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
244     { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
245     { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
246     // Track
247     { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
248     { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
249     { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
250     { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
251     { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
252     // Sequence
253     { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
254     { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
255     { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
256     // Source Clip
257     { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
258     { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
259     { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
260     // Timecode Component
261     { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
262     { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
263     { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
264     // File Descriptor
265     { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
266     { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
267     { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
268     { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
269     // Generic Picture Essence Descriptor
270     { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
271     { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
272     { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
273     { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
274     { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
275     { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
276     { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
277     { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
278     // CDCI Picture Essence Descriptor
279     { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
280     { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
281     // Generic Sound Essence Descriptor
282     { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
283     { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
284     { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
285     { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
286     { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
287     // Index Table Segment
288     { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
289     { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
290     { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
291     { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
292     { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
293     { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
294     { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
295     { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
296     // MPEG video Descriptor
297     { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
298     // Wave Audio Essence Descriptor
299     { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
300     { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
301 };
302
303 static void mxf_write_uuid(ByteIOContext *pb, enum MXFMetadataSetType type, int value)
304 {
305     put_buffer(pb, uuid_base, 12);
306     put_be16(pb, type);
307     put_be16(pb, value);
308 }
309
310 static void mxf_write_umid(ByteIOContext *pb, enum MXFMetadataSetType type, int value)
311 {
312     put_buffer(pb, umid_base, 16);
313     mxf_write_uuid(pb, type, value);
314 }
315
316 static void mxf_write_refs_count(ByteIOContext *pb, int ref_count)
317 {
318     put_be32(pb, ref_count);
319     put_be32(pb, 16);
320 }
321
322 static int klv_ber_length(uint64_t len)
323 {
324     if (len < 128)
325         return 1;
326     else
327         return (av_log2(len) >> 3) + 2;
328 }
329
330 static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len)
331 {
332     // Determine the best BER size
333     int size;
334     if (len < 128) {
335         //short form
336         put_byte(pb, len);
337         return 1;
338     }
339
340     size = (av_log2(len) >> 3) + 1;
341
342     // long form
343     put_byte(pb, 0x80 + size);
344     while(size) {
345         size--;
346         put_byte(pb, len >> 8 * size & 0xff);
347     }
348     return 0;
349 }
350
351 static void klv_encode_ber4_length(ByteIOContext *pb, int len)
352 {
353     put_byte(pb, 0x80 + 3);
354     put_be24(pb, len);
355 }
356
357 /*
358  * Get essence container ul index
359  */
360 static int mxf_get_essence_container_ul_index(enum CodecID id)
361 {
362     int i;
363     for (i = 0; mxf_essence_mappings[i].id; i++)
364         if (mxf_essence_mappings[i].id == id)
365             return mxf_essence_mappings[i].index;
366     return -1;
367 }
368
369 static void mxf_write_primer_pack(AVFormatContext *s)
370 {
371     ByteIOContext *pb = s->pb;
372     int local_tag_number, i = 0;
373
374     local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
375
376     put_buffer(pb, primer_pack_key, 16);
377     klv_encode_ber_length(pb, local_tag_number * 18 + 8);
378
379     put_be32(pb, local_tag_number); // local_tag num
380     put_be32(pb, 18); // item size, always 18 according to the specs
381
382     for (i = 0; i < local_tag_number; i++) {
383         put_be16(pb, mxf_local_tag_batch[i].local_tag);
384         put_buffer(pb, mxf_local_tag_batch[i].uid, 16);
385     }
386 }
387
388 static void mxf_write_local_tag(ByteIOContext *pb, int size, int tag)
389 {
390     put_be16(pb, tag);
391     put_be16(pb, size);
392 }
393
394 static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value)
395 {
396     put_buffer(pb, header_metadata_key, 13);
397     put_be24(pb, value);
398 }
399
400 static void mxf_free(AVFormatContext *s)
401 {
402     int i;
403
404     for (i = 0; i < s->nb_streams; i++) {
405         AVStream *st = s->streams[i];
406         av_freep(&st->priv_data);
407     }
408 }
409
410 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
411 {
412     const MXFCodecUL *uls = ff_mxf_data_definition_uls;
413     while (uls->uid[0]) {
414         if (type == uls->id)
415             break;
416         uls++;
417     }
418     return uls;
419 }
420
421 static void mxf_write_essence_container_refs(AVFormatContext *s)
422 {
423     MXFContext *c = s->priv_data;
424     ByteIOContext *pb = s->pb;
425     int i;
426
427     mxf_write_refs_count(pb, c->essence_container_count);
428     av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
429     for (i = 0; i < c->essence_container_count; i++) {
430         MXFStreamContext *sc = s->streams[i]->priv_data;
431         put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
432     }
433 }
434
435 static void mxf_write_preface(AVFormatContext *s)
436 {
437     MXFContext *mxf = s->priv_data;
438     ByteIOContext *pb = s->pb;
439
440     mxf_write_metadata_key(pb, 0x012f00);
441     PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
442     klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count);
443
444     // write preface set uid
445     mxf_write_local_tag(pb, 16, 0x3C0A);
446     mxf_write_uuid(pb, Preface, 0);
447     PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
448
449     // last modified date
450     mxf_write_local_tag(pb, 8, 0x3B02);
451     put_be64(pb, mxf->timestamp);
452
453     // write version
454     mxf_write_local_tag(pb, 2, 0x3B05);
455     put_be16(pb, 258); // v1.2
456
457     // write identification_refs
458     mxf_write_local_tag(pb, 16 + 8, 0x3B06);
459     mxf_write_refs_count(pb, 1);
460     mxf_write_uuid(pb, Identification, 0);
461
462     // write content_storage_refs
463     mxf_write_local_tag(pb, 16, 0x3B03);
464     mxf_write_uuid(pb, ContentStorage, 0);
465
466     // operational pattern
467     mxf_write_local_tag(pb, 16, 0x3B09);
468     put_buffer(pb, op1a_ul, 16);
469
470     // write essence_container_refs
471     mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A);
472     mxf_write_essence_container_refs(s);
473
474     // write dm_scheme_refs
475     mxf_write_local_tag(pb, 8, 0x3B0B);
476     put_be64(pb, 0);
477 }
478
479 /*
480  * Write a local tag containing an ascii string as utf-16
481  */
482 static void mxf_write_local_tag_utf16(ByteIOContext *pb, int tag, const char *value)
483 {
484     int i, size = strlen(value);
485     mxf_write_local_tag(pb, size*2, tag);
486     for (i = 0; i < size; i++)
487         put_be16(pb, value[i]);
488 }
489
490 static void mxf_write_identification(AVFormatContext *s)
491 {
492     MXFContext *mxf = s->priv_data;
493     ByteIOContext *pb = s->pb;
494     const char *company = "FFmpeg";
495     const char *product = "OP1a Muxer";
496     const char *version;
497     int length;
498
499     mxf_write_metadata_key(pb, 0x013000);
500     PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
501
502     version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
503         "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
504     length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
505     klv_encode_ber_length(pb, length);
506
507     // write uid
508     mxf_write_local_tag(pb, 16, 0x3C0A);
509     mxf_write_uuid(pb, Identification, 0);
510     PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
511
512     // write generation uid
513     mxf_write_local_tag(pb, 16, 0x3C09);
514     mxf_write_uuid(pb, Identification, 1);
515
516     mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
517     mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
518     mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
519
520     // write product uid
521     mxf_write_local_tag(pb, 16, 0x3C05);
522     mxf_write_uuid(pb, Identification, 2);
523
524     // modification date
525     mxf_write_local_tag(pb, 8, 0x3C06);
526     put_be64(pb, mxf->timestamp);
527 }
528
529 static void mxf_write_content_storage(AVFormatContext *s)
530 {
531     ByteIOContext *pb = s->pb;
532
533     mxf_write_metadata_key(pb, 0x011800);
534     PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
535     klv_encode_ber_length(pb, 92);
536
537     // write uid
538     mxf_write_local_tag(pb, 16, 0x3C0A);
539     mxf_write_uuid(pb, ContentStorage, 0);
540     PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
541
542     // write package reference
543     mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
544     mxf_write_refs_count(pb, 2);
545     mxf_write_uuid(pb, MaterialPackage, 0);
546     mxf_write_uuid(pb, SourcePackage, 0);
547
548     // write essence container data
549     mxf_write_local_tag(pb, 8 + 16, 0x1902);
550     mxf_write_refs_count(pb, 1);
551     mxf_write_uuid(pb, EssenceContainerData, 0);
552 }
553
554 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
555 {
556     MXFContext *mxf = s->priv_data;
557     ByteIOContext *pb = s->pb;
558     MXFStreamContext *sc = st->priv_data;
559
560     mxf_write_metadata_key(pb, 0x013b00);
561     PRINT_KEY(s, "track key", pb->buf_ptr - 16);
562     klv_encode_ber_length(pb, 80);
563
564     // write track uid
565     mxf_write_local_tag(pb, 16, 0x3C0A);
566     mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
567     PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
568
569     // write track id
570     mxf_write_local_tag(pb, 4, 0x4801);
571     put_be32(pb, st->index+2);
572
573     // write track number
574     mxf_write_local_tag(pb, 4, 0x4804);
575     if (type == MaterialPackage)
576         put_be32(pb, 0); // track number of material package is 0
577     else
578         put_buffer(pb, sc->track_essence_element_key + 12, 4);
579
580     mxf_write_local_tag(pb, 8, 0x4B01);
581     put_be32(pb, mxf->time_base.den);
582     put_be32(pb, mxf->time_base.num);
583
584     // write origin
585     mxf_write_local_tag(pb, 8, 0x4B02);
586     put_be64(pb, 0);
587
588     // write sequence refs
589     mxf_write_local_tag(pb, 16, 0x4803);
590     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
591 }
592
593 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 };
594
595 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
596 {
597     MXFContext *mxf = s->priv_data;
598     ByteIOContext *pb = s->pb;
599
600     // find data define uls
601     mxf_write_local_tag(pb, 16, 0x0201);
602     if (st == mxf->timecode_track)
603         put_buffer(pb, smpte_12m_timecode_track_data_ul, 16);
604     else {
605         const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
606         put_buffer(pb, data_def_ul->uid, 16);
607     }
608
609     // write duration
610     mxf_write_local_tag(pb, 8, 0x0202);
611     put_be64(pb, mxf->duration);
612 }
613
614 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
615 {
616     MXFContext *mxf = s->priv_data;
617     ByteIOContext *pb = s->pb;
618     enum MXFMetadataSetType component;
619
620     mxf_write_metadata_key(pb, 0x010f00);
621     PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
622     klv_encode_ber_length(pb, 80);
623
624     mxf_write_local_tag(pb, 16, 0x3C0A);
625     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
626
627     PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
628     mxf_write_common_fields(s, st);
629
630     // write structural component
631     mxf_write_local_tag(pb, 16 + 8, 0x1001);
632     mxf_write_refs_count(pb, 1);
633     if (st == mxf->timecode_track)
634         component = TimecodeComponent;
635     else
636         component = SourceClip;
637     if (type == SourcePackage)
638         component += TypeBottom;
639     mxf_write_uuid(pb, component, st->index);
640 }
641
642 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
643 {
644     MXFContext *mxf = s->priv_data;
645     ByteIOContext *pb = s->pb;
646
647     mxf_write_metadata_key(pb, 0x011400);
648     klv_encode_ber_length(pb, 75);
649
650     // UID
651     mxf_write_local_tag(pb, 16, 0x3C0A);
652     mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
653                    TimecodeComponent + TypeBottom, st->index);
654
655     mxf_write_common_fields(s, st);
656
657     // Start Time Code
658     mxf_write_local_tag(pb, 8, 0x1501);
659     put_be64(pb, mxf->timecode_start);
660
661     // Rounded Time Code Base
662     mxf_write_local_tag(pb, 2, 0x1502);
663     put_be16(pb, mxf->timecode_base);
664
665     // Drop Frame
666     mxf_write_local_tag(pb, 1, 0x1503);
667     put_byte(pb, mxf->timecode_drop_frame);
668 }
669
670 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
671 {
672     ByteIOContext *pb = s->pb;
673     int i;
674
675     mxf_write_metadata_key(pb, 0x011100);
676     PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
677     klv_encode_ber_length(pb, 108);
678
679     // write uid
680     mxf_write_local_tag(pb, 16, 0x3C0A);
681     mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
682
683     PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
684     mxf_write_common_fields(s, st);
685
686     // write start_position
687     mxf_write_local_tag(pb, 8, 0x1201);
688     put_be64(pb, 0);
689
690     // write source package uid, end of the reference
691     mxf_write_local_tag(pb, 32, 0x1101);
692     if (type == SourcePackage) {
693         for (i = 0; i < 4; i++)
694             put_be64(pb, 0);
695     } else
696         mxf_write_umid(pb, SourcePackage, 0);
697
698     // write source track id
699     mxf_write_local_tag(pb, 4, 0x1102);
700     if (type == SourcePackage)
701         put_be32(pb, 0);
702     else
703         put_be32(pb, st->index+2);
704 }
705
706 static void mxf_write_multi_descriptor(AVFormatContext *s)
707 {
708     MXFContext *mxf = s->priv_data;
709     ByteIOContext *pb = s->pb;
710     const uint8_t *ul;
711     int i;
712
713     mxf_write_metadata_key(pb, 0x014400);
714     PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
715     klv_encode_ber_length(pb, 64 + 16 * s->nb_streams);
716
717     mxf_write_local_tag(pb, 16, 0x3C0A);
718     mxf_write_uuid(pb, MultipleDescriptor, 0);
719     PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
720
721     // write sample rate
722     mxf_write_local_tag(pb, 8, 0x3001);
723     put_be32(pb, mxf->time_base.den);
724     put_be32(pb, mxf->time_base.num);
725
726     // write essence container ul
727     mxf_write_local_tag(pb, 16, 0x3004);
728     if (mxf->essence_container_count > 1)
729         ul = multiple_desc_ul;
730     else {
731         MXFStreamContext *sc = s->streams[0]->priv_data;
732         ul = mxf_essence_container_uls[sc->index].container_ul;
733     }
734     put_buffer(pb, ul, 16);
735
736     // write sub descriptor refs
737     mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
738     mxf_write_refs_count(pb, s->nb_streams);
739     for (i = 0; i < s->nb_streams; i++)
740         mxf_write_uuid(pb, SubDescriptor, i);
741 }
742
743 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
744 {
745     MXFContext *mxf = s->priv_data;
746     MXFStreamContext *sc = st->priv_data;
747     ByteIOContext *pb = s->pb;
748
749     put_buffer(pb, key, 16);
750     klv_encode_ber_length(pb, size+20+8+12+20);
751
752     mxf_write_local_tag(pb, 16, 0x3C0A);
753     mxf_write_uuid(pb, SubDescriptor, st->index);
754
755     mxf_write_local_tag(pb, 4, 0x3006);
756     put_be32(pb, st->index+2);
757
758     mxf_write_local_tag(pb, 8, 0x3001);
759     put_be32(pb, mxf->time_base.den);
760     put_be32(pb, mxf->time_base.num);
761
762     mxf_write_local_tag(pb, 16, 0x3004);
763     put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
764 }
765
766 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
767 static const UID mxf_wav_descriptor_key       = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
768 static const UID mxf_aes3_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
769 static const UID mxf_cdci_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
770 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
771
772 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
773 {
774     MXFStreamContext *sc = st->priv_data;
775     ByteIOContext *pb = s->pb;
776     int stored_height = (st->codec->height+15)/16*16;
777     int display_height;
778     int f1, f2;
779
780     mxf_write_generic_desc(s, st, key, size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20);
781
782     mxf_write_local_tag(pb, 4, 0x3203);
783     put_be32(pb, st->codec->width);
784
785     mxf_write_local_tag(pb, 4, 0x3202);
786     put_be32(pb, stored_height>>sc->interlaced);
787
788     mxf_write_local_tag(pb, 4, 0x3209);
789     put_be32(pb, st->codec->width);
790
791     if (st->codec->height == 608) // PAL + VBI
792         display_height = 576;
793     else if (st->codec->height == 512)  // NTSC + VBI
794         display_height = 486;
795     else
796         display_height = st->codec->height;
797
798     mxf_write_local_tag(pb, 4, 0x3208);
799     put_be32(pb, display_height>>sc->interlaced);
800
801     // component depth
802     mxf_write_local_tag(pb, 4, 0x3301);
803     put_be32(pb, 8);
804
805     // horizontal subsampling
806     mxf_write_local_tag(pb, 4, 0x3302);
807     put_be32(pb, 2);
808
809     // frame layout
810     mxf_write_local_tag(pb, 1, 0x320C);
811     put_byte(pb, sc->interlaced);
812
813     // video line map
814     switch (st->codec->height) {
815     case  576: f1 = 23; f2 = 336; break;
816     case  608: f1 =  7; f2 = 320; break;
817     case  480: f1 = 20; f2 = 283; break;
818     case  512: f1 =  7; f2 = 270; break;
819     case  720: f1 = 26; f2 =   0; break; // progressive
820     case 1080: f1 = 21; f2 = 584; break;
821     default:   f1 =  0; f2 =   0; break;
822     }
823
824     if (!sc->interlaced) {
825         f2  = 0;
826         f1 *= 2;
827     }
828
829     mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
830     put_be32(pb, sc->interlaced ? 2 : 1);
831     put_be32(pb, 4);
832     put_be32(pb, f1);
833     if (sc->interlaced)
834         put_be32(pb, f2);
835
836     mxf_write_local_tag(pb, 8, 0x320E);
837     put_be32(pb, sc->aspect_ratio.num);
838     put_be32(pb, sc->aspect_ratio.den);
839
840     mxf_write_local_tag(pb, 16, 0x3201);
841     put_buffer(pb, *sc->codec_ul, 16);
842 }
843
844 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
845 {
846     mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
847 }
848
849 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
850 {
851     ByteIOContext *pb = s->pb;
852
853     mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8);
854
855     // bit rate
856     mxf_write_local_tag(pb, 4, 0x8000);
857     put_be32(pb, st->codec->bit_rate);
858 }
859
860 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
861 {
862     ByteIOContext *pb = s->pb;
863
864     mxf_write_generic_desc(s, st, key, size+5+12+8+8);
865
866     // audio locked
867     mxf_write_local_tag(pb, 1, 0x3D02);
868     put_byte(pb, 1);
869
870     // write audio sampling rate
871     mxf_write_local_tag(pb, 8, 0x3D03);
872     put_be32(pb, st->codec->sample_rate);
873     put_be32(pb, 1);
874
875     mxf_write_local_tag(pb, 4, 0x3D07);
876     put_be32(pb, st->codec->channels);
877
878     mxf_write_local_tag(pb, 4, 0x3D01);
879     put_be32(pb, av_get_bits_per_sample(st->codec->codec_id));
880 }
881
882 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
883 {
884     ByteIOContext *pb = s->pb;
885
886     mxf_write_generic_sound_common(s, st, key, size+6+8);
887
888     mxf_write_local_tag(pb, 2, 0x3D0A);
889     put_be16(pb, st->codec->block_align);
890
891     // avg bytes per sec
892     mxf_write_local_tag(pb, 4, 0x3D09);
893     put_be32(pb, st->codec->block_align*st->codec->sample_rate);
894 }
895
896 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
897 {
898     mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
899 }
900
901 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
902 {
903     mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
904 }
905
906 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
907 {
908     mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
909 }
910
911 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
912 {
913     MXFContext *mxf = s->priv_data;
914     ByteIOContext *pb = s->pb;
915     int i, track_count = s->nb_streams+1;
916
917     if (type == MaterialPackage) {
918         mxf_write_metadata_key(pb, 0x013600);
919         PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
920         klv_encode_ber_length(pb, 92 + 16*track_count);
921     } else {
922         mxf_write_metadata_key(pb, 0x013700);
923         PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
924         klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
925     }
926
927     // write uid
928     mxf_write_local_tag(pb, 16, 0x3C0A);
929     mxf_write_uuid(pb, type, 0);
930     av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
931     PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
932
933     // write package umid
934     mxf_write_local_tag(pb, 32, 0x4401);
935     mxf_write_umid(pb, type, 0);
936     PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
937
938     // package creation date
939     mxf_write_local_tag(pb, 8, 0x4405);
940     put_be64(pb, mxf->timestamp);
941
942     // package modified date
943     mxf_write_local_tag(pb, 8, 0x4404);
944     put_be64(pb, mxf->timestamp);
945
946     // write track refs
947     mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
948     mxf_write_refs_count(pb, track_count);
949     mxf_write_uuid(pb, type == MaterialPackage ? Track :
950                    Track + TypeBottom, -1); // timecode track
951     for (i = 0; i < s->nb_streams; i++)
952         mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
953
954     // write multiple descriptor reference
955     if (type == SourcePackage) {
956         mxf_write_local_tag(pb, 16, 0x4701);
957         if (s->nb_streams > 1) {
958             mxf_write_uuid(pb, MultipleDescriptor, 0);
959             mxf_write_multi_descriptor(s);
960         } else
961             mxf_write_uuid(pb, SubDescriptor, 0);
962     }
963
964     // write timecode track
965     mxf_write_track(s, mxf->timecode_track, type);
966     mxf_write_sequence(s, mxf->timecode_track, type);
967     mxf_write_timecode_component(s, mxf->timecode_track, type);
968
969     for (i = 0; i < s->nb_streams; i++) {
970         AVStream *st = s->streams[i];
971         mxf_write_track(s, st, type);
972         mxf_write_sequence(s, st, type);
973         mxf_write_structural_component(s, st, type);
974
975         if (type == SourcePackage) {
976             MXFStreamContext *sc = st->priv_data;
977             mxf_essence_container_uls[sc->index].write_desc(s, st);
978         }
979     }
980 }
981
982 static int mxf_write_essence_container_data(AVFormatContext *s)
983 {
984     ByteIOContext *pb = s->pb;
985
986     mxf_write_metadata_key(pb, 0x012300);
987     klv_encode_ber_length(pb, 72);
988
989     mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
990     mxf_write_uuid(pb, EssenceContainerData, 0);
991
992     mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
993     mxf_write_umid(pb, SourcePackage, 0);
994
995     mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
996     put_be32(pb, 1);
997
998     mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
999     put_be32(pb, 2);
1000
1001     return 0;
1002 }
1003
1004 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1005 {
1006     mxf_write_preface(s);
1007     mxf_write_identification(s);
1008     mxf_write_content_storage(s);
1009     mxf_write_package(s, MaterialPackage);
1010     mxf_write_package(s, SourcePackage);
1011     mxf_write_essence_container_data(s);
1012     return 0;
1013 }
1014
1015 static unsigned klv_fill_size(uint64_t size)
1016 {
1017     unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1018     if (pad < 20) // smallest fill item possible
1019         return pad + KAG_SIZE;
1020     else
1021         return pad & (KAG_SIZE-1);
1022 }
1023
1024 static void mxf_write_index_table_segment(AVFormatContext *s)
1025 {
1026     MXFContext *mxf = s->priv_data;
1027     ByteIOContext *pb = s->pb;
1028     int i, j;
1029     int temporal_reordering = 0;
1030     int key_index = mxf->last_key_index;
1031
1032     av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1033
1034     if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1035         return;
1036
1037     put_buffer(pb, index_table_segment_key, 16);
1038
1039     if (mxf->edit_unit_byte_count) {
1040         klv_encode_ber_length(pb, 80);
1041     } else {
1042         klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 +
1043                               12+mxf->edit_units_count*(11+mxf->slice_count*4));
1044     }
1045
1046     // instance id
1047     mxf_write_local_tag(pb, 16, 0x3C0A);
1048     mxf_write_uuid(pb, IndexTableSegment, 0);
1049
1050     // index edit rate
1051     mxf_write_local_tag(pb, 8, 0x3F0B);
1052     put_be32(pb, mxf->time_base.num);
1053     put_be32(pb, mxf->time_base.den);
1054
1055     // index start position
1056     mxf_write_local_tag(pb, 8, 0x3F0C);
1057     put_be64(pb, mxf->last_indexed_edit_unit);
1058
1059     // index duration
1060     mxf_write_local_tag(pb, 8, 0x3F0D);
1061     put_be64(pb, mxf->edit_units_count);
1062
1063     // edit unit byte count
1064     mxf_write_local_tag(pb, 4, 0x3F05);
1065     put_be32(pb, mxf->edit_unit_byte_count);
1066
1067     // index sid
1068     mxf_write_local_tag(pb, 4, 0x3F06);
1069     put_be32(pb, 2);
1070
1071     // body sid
1072     mxf_write_local_tag(pb, 4, 0x3F07);
1073     put_be32(pb, 1);
1074
1075     if (!mxf->edit_unit_byte_count) {
1076         // real slice count - 1
1077         mxf_write_local_tag(pb, 1, 0x3F08);
1078         put_byte(pb, mxf->slice_count);
1079
1080         // delta entry array
1081         mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1082         put_be32(pb, s->nb_streams+1); // num of entries
1083         put_be32(pb, 6);               // size of one entry
1084         // write system item delta entry
1085         put_byte(pb, 0);
1086         put_byte(pb, 0); // slice entry
1087         put_be32(pb, 0); // element delta
1088         for (i = 0; i < s->nb_streams; i++) {
1089             AVStream *st = s->streams[i];
1090             MXFStreamContext *sc = st->priv_data;
1091             put_byte(pb, sc->temporal_reordering);
1092             if (sc->temporal_reordering)
1093                 temporal_reordering = 1;
1094             if (i == 0) { // video track
1095                 put_byte(pb, 0); // slice number
1096                 put_be32(pb, KAG_SIZE); // system item size including klv fill
1097             } else { // audio track
1098                 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1099                 audio_frame_size += klv_fill_size(audio_frame_size);
1100                 put_byte(pb, 1);
1101                 put_be32(pb, (i-1)*audio_frame_size); // element delta
1102             }
1103         }
1104
1105         mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1106         put_be32(pb, mxf->edit_units_count);  // num of entries
1107         put_be32(pb, 11+mxf->slice_count*4);  // size of one entry
1108         for (i = 0; i < mxf->edit_units_count; i++) {
1109             if (temporal_reordering) {
1110                 int temporal_offset = 0;
1111                 for (j = i+1; j < mxf->edit_units_count; j++) {
1112                     temporal_offset++;
1113                     if (mxf->index_entries[j].flags & 0x10) { // backward prediction
1114                         // next is not b, so is reordered
1115                         if (!(mxf->index_entries[i+1].flags & 0x10)) {
1116                             if ((mxf->index_entries[i].flags & 0x11) == 0) // i frame
1117                                 temporal_offset = 0;
1118                             else
1119                                 temporal_offset = -temporal_offset;
1120                         }
1121                         break;
1122                     }
1123                 }
1124                 put_byte(pb, temporal_offset);
1125             } else
1126                 put_byte(pb, 0);
1127             if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1128                 mxf->last_key_index = key_index;
1129                 key_index = i;
1130             }
1131             if (mxf->index_entries[i].flags & 0x10 && // backward prediction
1132                 !(mxf->index_entries[key_index].flags & 0x80)) { // open gop
1133                 put_byte(pb, mxf->last_key_index - i);
1134             } else {
1135                 put_byte(pb, key_index - i); // key frame offset
1136                 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1137                     mxf->last_key_index = key_index;
1138             }
1139             put_byte(pb, mxf->index_entries[i].flags);
1140             // stream offset
1141             put_be64(pb, mxf->index_entries[i].offset);
1142             if (s->nb_streams > 1)
1143                 put_be32(pb, mxf->index_entries[i].slice_offset);
1144         }
1145
1146         mxf->last_key_index = key_index - mxf->edit_units_count;
1147         mxf->last_indexed_edit_unit += mxf->edit_units_count;
1148         mxf->edit_units_count = 0;
1149     }
1150 }
1151
1152 static void mxf_write_klv_fill(AVFormatContext *s)
1153 {
1154     unsigned pad = klv_fill_size(url_ftell(s->pb));
1155     if (pad) {
1156         put_buffer(s->pb, klv_fill_key, 16);
1157         pad -= 16 + 4;
1158         klv_encode_ber4_length(s->pb, pad);
1159         for (; pad; pad--)
1160             put_byte(s->pb, 0);
1161         assert(!(url_ftell(s->pb) & (KAG_SIZE-1)));
1162     }
1163 }
1164
1165 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1166                                 int indexsid,
1167                                 const uint8_t *key, int write_metadata)
1168 {
1169     MXFContext *mxf = s->priv_data;
1170     ByteIOContext *pb = s->pb;
1171     int64_t header_byte_count_offset;
1172     unsigned index_byte_count = 0;
1173     uint64_t partition_offset = url_ftell(pb);
1174
1175     if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1176         index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1177             12+mxf->edit_units_count*(11+mxf->slice_count*4);
1178     else if (mxf->edit_unit_byte_count && indexsid)
1179         index_byte_count = 80;
1180
1181     if (index_byte_count) {
1182         // add encoded ber length
1183         index_byte_count += 16 + klv_ber_length(index_byte_count);
1184         index_byte_count += klv_fill_size(index_byte_count);
1185     }
1186
1187     if (!memcmp(key, body_partition_key, 16)) {
1188         mxf->body_partition_offset =
1189             av_realloc(mxf->body_partition_offset,
1190                        (mxf->body_partitions_count+1)*
1191                        sizeof(*mxf->body_partition_offset));
1192         mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1193     }
1194
1195     // write klv
1196     put_buffer(pb, key, 16);
1197     klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count);
1198
1199     // write partition value
1200     put_be16(pb, 1); // majorVersion
1201     put_be16(pb, 2); // minorVersion
1202     put_be32(pb, KAG_SIZE); // KAGSize
1203
1204     put_be64(pb, partition_offset); // ThisPartition
1205
1206     if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1207         put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1208     else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1209         put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1210     else
1211         put_be64(pb, 0);
1212
1213     put_be64(pb, mxf->footer_partition_offset); // footerPartition
1214
1215     // set offset
1216     header_byte_count_offset = url_ftell(pb);
1217     put_be64(pb, 0); // headerByteCount, update later
1218
1219     // indexTable
1220     put_be64(pb, index_byte_count); // indexByteCount
1221     put_be32(pb, index_byte_count ? indexsid : 0); // indexSID
1222
1223     // BodyOffset
1224     if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1225         put_be64(pb, mxf->body_offset);
1226     } else
1227         put_be64(pb, 0);
1228
1229     put_be32(pb, bodysid); // bodySID
1230
1231     // operational pattern
1232     put_buffer(pb, op1a_ul, 16);
1233
1234     // essence container
1235     mxf_write_essence_container_refs(s);
1236
1237     if (write_metadata) {
1238         // mark the start of the headermetadata and calculate metadata size
1239         int64_t pos, start;
1240         unsigned header_byte_count;
1241
1242         mxf_write_klv_fill(s);
1243         start = url_ftell(s->pb);
1244         mxf_write_primer_pack(s);
1245         mxf_write_header_metadata_sets(s);
1246         pos = url_ftell(s->pb);
1247         header_byte_count = pos - start + klv_fill_size(pos);
1248
1249         // update header_byte_count
1250         url_fseek(pb, header_byte_count_offset, SEEK_SET);
1251         put_be64(pb, header_byte_count);
1252         url_fseek(pb, pos, SEEK_SET);
1253     }
1254
1255     put_flush_packet(pb);
1256 }
1257
1258 static const UID mxf_mpeg2_codec_uls[] = {
1259     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1260     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1261     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1262     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1263     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1264     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1265     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1266     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1267 };
1268
1269 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1270 {
1271     if (avctx->profile == 4) { // Main
1272         if (avctx->level == 8) // Main
1273             return avctx->gop_size ?
1274                 &mxf_mpeg2_codec_uls[1] :
1275                 &mxf_mpeg2_codec_uls[0];
1276         else if (avctx->level == 4) // High
1277             return avctx->gop_size ?
1278                 &mxf_mpeg2_codec_uls[5] :
1279                 &mxf_mpeg2_codec_uls[4];
1280     } else if (avctx->profile == 0) { // 422
1281         if (avctx->level == 5) // Main
1282             return avctx->gop_size ?
1283                 &mxf_mpeg2_codec_uls[3] :
1284                 &mxf_mpeg2_codec_uls[2];
1285         else if (avctx->level == 2) // High
1286             return avctx->gop_size ?
1287                 &mxf_mpeg2_codec_uls[7] :
1288                 &mxf_mpeg2_codec_uls[6];
1289     }
1290     return NULL;
1291 }
1292
1293 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt, int *flags)
1294 {
1295     MXFStreamContext *sc = st->priv_data;
1296     MXFContext *mxf = s->priv_data;
1297     uint32_t c = -1;
1298     int i;
1299
1300     *flags = 0;
1301
1302     for(i = 0; i < pkt->size - 4; i++) {
1303         c = (c<<8) + pkt->data[i];
1304         if (c == 0x1B5) {
1305             if (i + 2 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1306                 st->codec->profile = pkt->data[i+1] & 0x07;
1307                 st->codec->level   = pkt->data[i+2] >> 4;
1308             } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1309                 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1310                 break;
1311             }
1312         } else if (c == 0x1b8) { // gop
1313             if (i + 4 < pkt->size) {
1314                 if (pkt->data[i+4]>>6 & 0x01) // closed
1315                     *flags |= 0x80; // random access
1316                 if (!mxf->header_written) {
1317                     unsigned hours   =  (pkt->data[i+1]>>2) & 0x1f;
1318                     unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4);
1319                     unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5);
1320                     unsigned frames  = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7);
1321                     mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80);
1322                     mxf->timecode_start = (hours*3600 + minutes*60 + seconds) *
1323                         mxf->timecode_base + frames;
1324                     if (mxf->timecode_drop_frame) {
1325                         unsigned tminutes = 60 * hours + minutes;
1326                         mxf->timecode_start -= 2 * (tminutes - tminutes / 10);
1327                     }
1328                     av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start,
1329                            hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames);
1330                 }
1331             }
1332         } else if (c == 0x1b3) { // seq
1333             *flags |= 0x40;
1334             if (i + 4 < pkt->size) {
1335                 switch ((pkt->data[i+4]>>4) & 0xf) {
1336                 case 2:  sc->aspect_ratio = (AVRational){  4,  3}; break;
1337                 case 3:  sc->aspect_ratio = (AVRational){ 16,  9}; break;
1338                 case 4:  sc->aspect_ratio = (AVRational){221,100}; break;
1339                 default:
1340                     av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1341                               st->codec->width, st->codec->height, 1024*1024);
1342                 }
1343             }
1344         } else if (c == 0x100) { // pic
1345             int pict_type = (pkt->data[i+2]>>3) & 0x07;
1346             if (pict_type == 2) { // P frame
1347                 *flags |= 0x22;
1348                 st->codec->gop_size = 1;
1349             } else if (pict_type == 3) { // B frame
1350                 *flags |= 0x33;
1351                 sc->temporal_reordering = -1;
1352             } else if (!pict_type) {
1353                 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1354                 return 0;
1355             }
1356         }
1357     }
1358     if (s->oformat != &mxf_d10_muxer)
1359         sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1360     return !!sc->codec_ul;
1361 }
1362
1363 static uint64_t mxf_parse_timestamp(time_t timestamp)
1364 {
1365     struct tm *time = localtime(&timestamp);
1366     return (uint64_t)(time->tm_year+1900) << 48 |
1367            (uint64_t)(time->tm_mon+1)     << 40 |
1368            (uint64_t) time->tm_mday       << 32 |
1369                       time->tm_hour       << 24 |
1370                       time->tm_min        << 16 |
1371                       time->tm_sec        << 8;
1372 }
1373
1374 static int mxf_write_header(AVFormatContext *s)
1375 {
1376     MXFContext *mxf = s->priv_data;
1377     int i;
1378     uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1379     const int *samples_per_frame = NULL;
1380
1381     for (i = 0; i < s->nb_streams; i++) {
1382         AVStream *st = s->streams[i];
1383         MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1384         if (!sc)
1385             return AVERROR(ENOMEM);
1386         st->priv_data = sc;
1387
1388         if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
1389             if (i != 0) {
1390                 av_log(s, AV_LOG_ERROR, "video stream must be first track\n");
1391                 return -1;
1392             }
1393             if (fabs(av_q2d(st->codec->time_base) - 1/25.0) < 0.0001) {
1394                 samples_per_frame = PAL_samples_per_frame;
1395                 mxf->time_base = (AVRational){ 1, 25 };
1396                 mxf->timecode_base = 25;
1397             } else if (fabs(av_q2d(st->codec->time_base) - 1001/30000.0) < 0.0001) {
1398                 samples_per_frame = NTSC_samples_per_frame;
1399                 mxf->time_base = (AVRational){ 1001, 30000 };
1400                 mxf->timecode_base = 30;
1401             } else {
1402                 av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n");
1403                 return -1;
1404             }
1405             av_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1406             if (s->oformat == &mxf_d10_muxer) {
1407                 if (st->codec->bit_rate == 50000000)
1408                     if (mxf->time_base.den == 25) sc->index = 3;
1409                     else                          sc->index = 5;
1410                 else if (st->codec->bit_rate == 40000000)
1411                     if (mxf->time_base.den == 25) sc->index = 7;
1412                     else                          sc->index = 9;
1413                 else if (st->codec->bit_rate == 30000000)
1414                     if (mxf->time_base.den == 25) sc->index = 11;
1415                     else                          sc->index = 13;
1416                 else {
1417                     av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1418                     return -1;
1419                 }
1420
1421                 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1422                 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1423                     mxf->time_base.num / (8*mxf->time_base.den);
1424                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1425                 mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4;
1426                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1427             }
1428         } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
1429             if (st->codec->sample_rate != 48000) {
1430                 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1431                 return -1;
1432             }
1433             av_set_pts_info(st, 64, 1, st->codec->sample_rate);
1434             if (s->oformat == &mxf_d10_muxer) {
1435                 if (st->index != 1) {
1436                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1437                     return -1;
1438                 }
1439                 if (st->codec->codec_id != CODEC_ID_PCM_S16LE &&
1440                     st->codec->codec_id != CODEC_ID_PCM_S24LE) {
1441                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1442                 }
1443                 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1444             } else
1445             mxf->slice_count = 1;
1446         }
1447
1448         if (!sc->index) {
1449             sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1450             if (sc->index == -1) {
1451                 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1452                        "codec not currently supported in container\n", i);
1453                 return -1;
1454             }
1455         }
1456
1457         sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1458
1459         memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1460         sc->track_essence_element_key[15] = present[sc->index];
1461         PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1462
1463         if (!present[sc->index])
1464             mxf->essence_container_count++;
1465         present[sc->index]++;
1466     }
1467
1468     if (s->oformat == &mxf_d10_muxer) {
1469         mxf->essence_container_count = 1;
1470     }
1471
1472     for (i = 0; i < s->nb_streams; i++) {
1473         MXFStreamContext *sc = s->streams[i]->priv_data;
1474         // update element count
1475         sc->track_essence_element_key[13] = present[sc->index];
1476         sc->order = AV_RB32(sc->track_essence_element_key+12);
1477     }
1478
1479     mxf->timestamp = mxf_parse_timestamp(s->timestamp);
1480     mxf->duration = -1;
1481
1482     mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1483     if (!mxf->timecode_track)
1484         return AVERROR(ENOMEM);
1485     mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1486     if (!mxf->timecode_track->priv_data)
1487         return AVERROR(ENOMEM);
1488     mxf->timecode_track->index = -1;
1489
1490     if (!samples_per_frame)
1491         samples_per_frame = PAL_samples_per_frame;
1492
1493     if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0)
1494         return -1;
1495
1496     return 0;
1497 }
1498
1499 static const uint8_t system_metadata_pack_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1500 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 };
1501
1502 static uint32_t ff_framenum_to_12m_time_code(unsigned frame, int drop, int fps)
1503 {
1504     return (0                                    << 31) | // color frame flag
1505            (0                                    << 30) | // drop  frame flag
1506            ( ((frame % fps) / 10)                << 28) | // tens  of frames
1507            ( ((frame % fps) % 10)                << 24) | // units of frames
1508            (0                                    << 23) | // field phase (NTSC), b0 (PAL)
1509            ((((frame / fps) % 60) / 10)          << 20) | // tens  of seconds
1510            ((((frame / fps) % 60) % 10)          << 16) | // units of seconds
1511            (0                                    << 15) | // b0 (NTSC), b2 (PAL)
1512            ((((frame / (fps * 60)) % 60) / 10)   << 12) | // tens  of minutes
1513            ((((frame / (fps * 60)) % 60) % 10)   <<  8) | // units of minutes
1514            (0                                    <<  7) | // b1
1515            (0                                    <<  6) | // b2 (NSC), field phase (PAL)
1516            ((((frame / (fps * 3600) % 24)) / 10) <<  4) | // tens  of hours
1517            (  (frame / (fps * 3600) % 24)) % 10;          // units of hours
1518 }
1519
1520 static void mxf_write_system_item(AVFormatContext *s)
1521 {
1522     MXFContext *mxf = s->priv_data;
1523     ByteIOContext *pb = s->pb;
1524     unsigned frame;
1525     uint32_t time_code;
1526
1527     frame = mxf->timecode_start + mxf->last_indexed_edit_unit + mxf->edit_units_count;
1528
1529     // write system metadata pack
1530     put_buffer(pb, system_metadata_pack_key, 16);
1531     klv_encode_ber4_length(pb, 57);
1532     put_byte(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1533     put_byte(pb, 0x04); // content package rate
1534     put_byte(pb, 0x00); // content package type
1535     put_be16(pb, 0x00); // channel handle
1536     put_be16(pb, frame); // continuity count
1537     if (mxf->essence_container_count > 1)
1538         put_buffer(pb, multiple_desc_ul, 16);
1539     else {
1540         MXFStreamContext *sc = s->streams[0]->priv_data;
1541         put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1542     }
1543     put_byte(pb, 0);
1544     put_be64(pb, 0);
1545     put_be64(pb, 0); // creation date/time stamp
1546
1547     put_byte(pb, 0x81); // SMPTE 12M time code
1548     time_code = ff_framenum_to_12m_time_code(frame, mxf->timecode_drop_frame, mxf->timecode_base);
1549     put_be32(pb, time_code);
1550     put_be32(pb, 0); // binary group data
1551     put_be64(pb, 0);
1552
1553     // write system metadata package set
1554     put_buffer(pb, system_metadata_package_set_key, 16);
1555     klv_encode_ber4_length(pb, 35);
1556     put_byte(pb, 0x83); // UMID
1557     put_be16(pb, 0x20);
1558     mxf_write_umid(pb, SourcePackage, 0);
1559 }
1560
1561 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1562 {
1563     MXFContext *mxf = s->priv_data;
1564     ByteIOContext *pb = s->pb;
1565     int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1566         (8*mxf->time_base.den); // frame size
1567     int pad;
1568
1569     packet_size += 16 + 4;
1570     packet_size += klv_fill_size(packet_size);
1571
1572     klv_encode_ber4_length(pb, pkt->size);
1573     put_buffer(pb, pkt->data, pkt->size);
1574
1575     // ensure CBR muxing by padding to correct video frame size
1576     pad = packet_size - pkt->size - 16 - 4;
1577     if (pad > 20) {
1578         put_buffer(s->pb, klv_fill_key, 16);
1579         pad -= 16 + 4;
1580         klv_encode_ber4_length(s->pb, pad);
1581         for (; pad; pad--)
1582             put_byte(s->pb, 0);
1583         assert(!(url_ftell(s->pb) & (KAG_SIZE-1)));
1584     } else {
1585         av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1586         for (; pad > 0; pad--)
1587             put_byte(s->pb, 0);
1588     }
1589 }
1590
1591 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1592 {
1593     MXFContext *mxf = s->priv_data;
1594     ByteIOContext *pb = s->pb;
1595     int frame_size = (pkt->size<<3) /
1596         (st->codec->channels*av_get_bits_per_sample(st->codec->codec_id));
1597     uint8_t *samples = pkt->data;
1598     uint8_t *end = pkt->data + pkt->size;
1599     int i;
1600
1601     klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1602
1603     put_byte(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1604     put_le16(pb, frame_size);
1605     put_byte(pb, (1<<st->codec->channels)-1);
1606
1607     while (samples < end) {
1608         for (i = 0; i < st->codec->channels; i++) {
1609             uint32_t sample;
1610             if (st->codec->codec_id == CODEC_ID_PCM_S24LE) {
1611                 sample = AV_RL24(samples)<< 4;
1612                 samples += 3;
1613             } else {
1614                 sample = AV_RL16(samples)<<12;
1615                 samples += 2;
1616             }
1617             put_le32(pb, sample | i);
1618         }
1619         for (; i < 8; i++)
1620             put_le32(pb, i);
1621     }
1622 }
1623
1624 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1625 {
1626     MXFContext *mxf = s->priv_data;
1627     ByteIOContext *pb = s->pb;
1628     AVStream *st = s->streams[pkt->stream_index];
1629     MXFStreamContext *sc = st->priv_data;
1630     int flags = 0;
1631
1632     if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1633         mxf->index_entries = av_realloc(mxf->index_entries,
1634             (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1635         if (!mxf->index_entries) {
1636             av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1637             return -1;
1638         }
1639     }
1640
1641     if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
1642         if (!mxf_parse_mpeg2_frame(s, st, pkt, &flags)) {
1643             av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1644             return -1;
1645         }
1646     }
1647
1648     if (!mxf->header_written) {
1649         if (mxf->edit_unit_byte_count) {
1650             mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1651             mxf_write_klv_fill(s);
1652             mxf_write_index_table_segment(s);
1653         } else {
1654             mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1655         }
1656         mxf->header_written = 1;
1657     }
1658
1659     if (st->index == 0) {
1660         if (!mxf->edit_unit_byte_count &&
1661             (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1662             !(flags & 0x33)) { // I frame, Gop start
1663             mxf_write_klv_fill(s);
1664             mxf_write_partition(s, 1, 2, body_partition_key, 0);
1665
1666             mxf_write_klv_fill(s);
1667             mxf_write_index_table_segment(s);
1668         }
1669
1670         mxf_write_klv_fill(s);
1671         mxf_write_system_item(s);
1672
1673         if (!mxf->edit_unit_byte_count) {
1674             mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1675             mxf->index_entries[mxf->edit_units_count].flags = flags;
1676             mxf->body_offset += KAG_SIZE; // size of system element
1677         }
1678         mxf->edit_units_count++;
1679     } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1680         mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1681             mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1682     }
1683
1684     mxf_write_klv_fill(s);
1685     put_buffer(pb, sc->track_essence_element_key, 16); // write key
1686     if (s->oformat == &mxf_d10_muxer) {
1687         if (st->codec->codec_type == CODEC_TYPE_VIDEO)
1688             mxf_write_d10_video_packet(s, st, pkt);
1689         else
1690             mxf_write_d10_audio_packet(s, st, pkt);
1691     } else {
1692         klv_encode_ber4_length(pb, pkt->size); // write length
1693         put_buffer(pb, pkt->data, pkt->size);
1694         mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
1695     }
1696
1697     put_flush_packet(pb);
1698
1699     return 0;
1700 }
1701
1702 static void mxf_write_random_index_pack(AVFormatContext *s)
1703 {
1704     MXFContext *mxf = s->priv_data;
1705     ByteIOContext *pb = s->pb;
1706     uint64_t pos = url_ftell(pb);
1707     int i;
1708
1709     put_buffer(pb, random_index_pack_key, 16);
1710     klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count);
1711
1712     if (mxf->edit_unit_byte_count)
1713         put_be32(pb, 1); // BodySID of header partition
1714     else
1715         put_be32(pb, 0);
1716     put_be64(pb, 0); // offset of header partition
1717
1718     for (i = 0; i < mxf->body_partitions_count; i++) {
1719         put_be32(pb, 1); // BodySID
1720         put_be64(pb, mxf->body_partition_offset[i]);
1721     }
1722
1723     put_be32(pb, 0); // BodySID of footer partition
1724     put_be64(pb, mxf->footer_partition_offset);
1725
1726     put_be32(pb, url_ftell(pb) - pos + 4);
1727 }
1728
1729 static int mxf_write_footer(AVFormatContext *s)
1730 {
1731     MXFContext *mxf = s->priv_data;
1732     ByteIOContext *pb = s->pb;
1733
1734     mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1735
1736     mxf_write_klv_fill(s);
1737     mxf->footer_partition_offset = url_ftell(pb);
1738     if (mxf->edit_unit_byte_count) { // no need to repeat index
1739         mxf_write_partition(s, 0, 0, footer_partition_key, 0);
1740     } else {
1741         mxf_write_partition(s, 0, 2, footer_partition_key, 0);
1742
1743         mxf_write_klv_fill(s);
1744         mxf_write_index_table_segment(s);
1745     }
1746
1747     mxf_write_klv_fill(s);
1748     mxf_write_random_index_pack(s);
1749
1750     if (!url_is_streamed(s->pb)) {
1751         url_fseek(pb, 0, SEEK_SET);
1752         if (mxf->edit_unit_byte_count) {
1753             mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
1754             mxf_write_klv_fill(s);
1755             mxf_write_index_table_segment(s);
1756         } else {
1757             mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
1758         }
1759     }
1760
1761     put_flush_packet(pb);
1762
1763     ff_audio_interleave_close(s);
1764
1765     av_freep(&mxf->index_entries);
1766     av_freep(&mxf->body_partition_offset);
1767     av_freep(&mxf->timecode_track->priv_data);
1768     av_freep(&mxf->timecode_track);
1769
1770     mxf_free(s);
1771
1772     return 0;
1773 }
1774
1775 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1776 {
1777     AVPacketList *pktl;
1778     int stream_count = 0;
1779     int streams[MAX_STREAMS];
1780
1781     memset(streams, 0, sizeof(streams));
1782     pktl = s->packet_buffer;
1783     while (pktl) {
1784         //av_log(s, AV_LOG_DEBUG, "show st:%d dts:%lld\n", pktl->pkt.stream_index, pktl->pkt.dts);
1785         if (!streams[pktl->pkt.stream_index])
1786             stream_count++;
1787         streams[pktl->pkt.stream_index]++;
1788         pktl = pktl->next;
1789     }
1790
1791     if (stream_count && (s->nb_streams == stream_count || flush)) {
1792         pktl = s->packet_buffer;
1793         if (s->nb_streams != stream_count) {
1794             AVPacketList *last = NULL;
1795             // find last packet in edit unit
1796             while (pktl) {
1797                 if (!stream_count || pktl->pkt.stream_index == 0)
1798                     break;
1799                 last = pktl;
1800                 pktl = pktl->next;
1801                 stream_count--;
1802             }
1803             // purge packet queue
1804             while (pktl) {
1805                 AVPacketList *next = pktl->next;
1806                 av_free_packet(&pktl->pkt);
1807                 av_freep(&pktl);
1808                 pktl = next;
1809             }
1810             if (last)
1811                 last->next = NULL;
1812             else {
1813                 s->packet_buffer = NULL;
1814                 goto out;
1815             }
1816             pktl = s->packet_buffer;
1817         }
1818
1819         *out = pktl->pkt;
1820         //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts);
1821         s->packet_buffer = pktl->next;
1822         av_freep(&pktl);
1823         return 1;
1824     } else {
1825     out:
1826         av_init_packet(out);
1827         return 0;
1828     }
1829 }
1830
1831 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
1832 {
1833     MXFStreamContext *sc  = s->streams[pkt ->stream_index]->priv_data;
1834     MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
1835
1836     return next->dts > pkt->dts ||
1837         (next->dts == pkt->dts && sc->order < sc2->order);
1838 }
1839
1840 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1841 {
1842     return ff_audio_rechunk_interleave(s, out, pkt, flush,
1843                                mxf_interleave_get_packet, mxf_compare_timestamps);
1844 }
1845
1846 AVOutputFormat mxf_muxer = {
1847     "mxf",
1848     NULL_IF_CONFIG_SMALL("Material eXchange Format"),
1849     "application/mxf",
1850     "mxf",
1851     sizeof(MXFContext),
1852     CODEC_ID_PCM_S16LE,
1853     CODEC_ID_MPEG2VIDEO,
1854     mxf_write_header,
1855     mxf_write_packet,
1856     mxf_write_footer,
1857     AVFMT_NOTIMESTAMPS,
1858     NULL,
1859     mxf_interleave,
1860 };
1861
1862 AVOutputFormat mxf_d10_muxer = {
1863     "mxf_d10",
1864     NULL_IF_CONFIG_SMALL("Material eXchange Format, D-10 Mapping"),
1865     "application/mxf",
1866     NULL,
1867     sizeof(MXFContext),
1868     CODEC_ID_PCM_S16LE,
1869     CODEC_ID_MPEG2VIDEO,
1870     mxf_write_header,
1871     mxf_write_packet,
1872     mxf_write_footer,
1873     AVFMT_NOTIMESTAMPS,
1874     NULL,
1875     mxf_interleave,
1876 };