3 * Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
25 * SMPTE 377M MXF File Format Specifications
26 * SMPTE 379M MXF Generic Container
27 * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
28 * SMPTE RP210: SMPTE Metadata Dictionary
29 * SMPTE RP224: Registry of SMPTE Universal Labels
42 UID track_essence_element_key
;
43 int index
; //<<< index in mxf_essence_container_uls table
54 } MXFContainerEssenceEntry
;
56 static void mxf_write_wav_desc(AVFormatContext
*s
, AVStream
*st
);
57 static void mxf_write_mpegvideo_desc(AVFormatContext
*s
, AVStream
*st
);
59 static const MXFContainerEssenceEntry mxf_essence_container_uls
[] = {
60 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
61 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
62 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
63 CODEC_ID_MPEG2VIDEO
, mxf_write_mpegvideo_desc
},
64 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
65 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
66 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
67 CODEC_ID_PCM_S16LE
, mxf_write_wav_desc
},
68 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
69 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
70 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
71 CODEC_ID_NONE
, NULL
},
74 typedef struct MXFContext
{
75 int64_t footer_partition_offset
;
76 int essence_container_count
;
77 uint8_t essence_containers_indices
[sizeof(mxf_essence_container_uls
)/
78 sizeof(*mxf_essence_container_uls
)];
81 static const uint8_t uuid_base
[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
82 static const uint8_t umid_base
[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x0F,0x00,0x13,0x00,0x00,0x00 };
85 * complete key for operation pattern, partitions, and primer pack
87 static const uint8_t op1a_ul
[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x01,0x00 };
88 static const uint8_t footer_partition_key
[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
89 static const uint8_t primer_pack_key
[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
92 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
93 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
96 * partial key for header metadata
98 static const uint8_t header_metadata_key
[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
100 static const uint8_t multiple_desc_ul
[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
103 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
105 static const MXFLocalTagPair mxf_local_tag_batch
[] = {
107 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
108 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
109 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
110 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
111 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
112 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
113 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
114 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
116 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
117 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
118 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
119 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
120 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
121 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
123 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
124 // Essence Container Data
125 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
126 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
128 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
129 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
130 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
131 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
132 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
134 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
135 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
136 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
137 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
138 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
140 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
141 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
142 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
144 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Start position */
145 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
146 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
148 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
149 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
150 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
151 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
152 // Generic Picture Essence Descriptor
153 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
154 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
155 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
156 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
157 // Generic Sound Essence Descriptor
158 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
159 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
160 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
161 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
164 static void mxf_write_uuid(ByteIOContext
*pb
, enum MXFMetadataSetType type
, int value
)
166 put_buffer(pb
, uuid_base
, 12);
171 static void mxf_write_umid(ByteIOContext
*pb
, enum MXFMetadataSetType type
, int value
)
173 put_buffer(pb
, umid_base
, 16);
174 mxf_write_uuid(pb
, type
, value
);
177 static void mxf_write_refs_count(ByteIOContext
*pb
, int ref_count
)
179 put_be32(pb
, ref_count
);
183 static int klv_encode_ber_length(ByteIOContext
*pb
, uint64_t len
)
185 // Determine the best BER size
193 size
= (av_log2(len
) >> 3) + 1;
196 put_byte(pb
, 0x80 + size
);
199 put_byte(pb
, len
>> 8 * size
& 0xff);
205 * Get essence container ul index
207 static int mxf_get_essence_container_ul_index(enum CodecID id
)
210 for (i
= 0; i
< sizeof(mxf_essence_container_uls
)/
211 sizeof(*mxf_essence_container_uls
); i
++)
212 if (mxf_essence_container_uls
[i
].id
== id
)
217 static void mxf_write_primer_pack(AVFormatContext
*s
)
219 ByteIOContext
*pb
= s
->pb
;
220 int local_tag_number
, i
= 0;
222 local_tag_number
= sizeof(mxf_local_tag_batch
)/sizeof(*mxf_local_tag_batch
);
224 put_buffer(pb
, primer_pack_key
, 16);
225 klv_encode_ber_length(pb
, local_tag_number
* 18 + 8);
227 put_be32(pb
, local_tag_number
); // local_tag num
228 put_be32(pb
, 18); // item size, always 18 according to the specs
230 for (i
= 0; i
< local_tag_number
; i
++) {
231 put_be16(pb
, mxf_local_tag_batch
[i
].local_tag
);
232 put_buffer(pb
, mxf_local_tag_batch
[i
].uid
, 16);
236 static void mxf_write_local_tag(ByteIOContext
*pb
, int size
, int tag
)
242 static void mxf_write_metadata_key(ByteIOContext
*pb
, unsigned int value
)
244 put_buffer(pb
, header_metadata_key
, 13);
248 static void mxf_free(AVFormatContext
*s
)
252 for (i
= 0; i
< s
->nb_streams
; i
++) {
253 AVStream
*st
= s
->streams
[i
];
254 av_freep(&st
->priv_data
);
258 static const MXFDataDefinitionUL
*mxf_get_data_definition_ul(enum CodecType type
)
260 const MXFDataDefinitionUL
*uls
= ff_mxf_data_definition_uls
;
261 while (uls
->type
!= CODEC_TYPE_DATA
) {
262 if (type
== uls
->type
)
269 static void mxf_write_essence_container_refs(AVFormatContext
*s
)
271 MXFContext
*c
= s
->priv_data
;
272 ByteIOContext
*pb
= s
->pb
;
275 mxf_write_refs_count(pb
, c
->essence_container_count
);
276 av_log(s
,AV_LOG_DEBUG
, "essence container count:%d\n", c
->essence_container_count
);
277 for (i
= 0; i
< c
->essence_container_count
; i
++) {
278 put_buffer(pb
, mxf_essence_container_uls
[c
->essence_containers_indices
[i
]].container_ul
, 16);
279 PRINT_KEY(s
, "essence container ul:\n", mxf_essence_container_uls
[c
->essence_containers_indices
[i
]].container_ul
);
283 static void mxf_write_preface(AVFormatContext
*s
)
285 MXFContext
*mxf
= s
->priv_data
;
286 ByteIOContext
*pb
= s
->pb
;
288 mxf_write_metadata_key(pb
, 0x012f00);
289 PRINT_KEY(s
, "preface key", pb
->buf_ptr
- 16);
290 klv_encode_ber_length(pb
, 130 + 16 * mxf
->essence_container_count
);
292 // write preface set uid
293 mxf_write_local_tag(pb
, 16, 0x3C0A);
294 mxf_write_uuid(pb
, Preface
, 0);
295 PRINT_KEY(s
, "preface uid", pb
->buf_ptr
- 16);
297 // write create date as unknown
298 mxf_write_local_tag(pb
, 8, 0x3B02);
302 mxf_write_local_tag(pb
, 2, 0x3B05);
305 // write identification_refs
306 mxf_write_local_tag(pb
, 16 + 8, 0x3B06);
307 mxf_write_refs_count(pb
, 1);
308 mxf_write_uuid(pb
, Identification
, 0);
310 // write content_storage_refs
311 mxf_write_local_tag(pb
, 16, 0x3B03);
312 mxf_write_uuid(pb
, ContentStorage
, 0);
314 mxf_write_local_tag(pb
, 16, 0x3B09);
315 put_buffer(pb
, op1a_ul
, 16);
317 // write essence_container_refs
318 mxf_write_local_tag(pb
, 8 + 16 * mxf
->essence_container_count
, 0x3B0A);
319 mxf_write_essence_container_refs(s
);
321 // write dm_scheme_refs
322 mxf_write_local_tag(pb
, 8, 0x3B0B);
327 * Write a local tag containing an ascii string as utf-16
329 static void mxf_write_local_tag_utf16(ByteIOContext
*pb
, int tag
, const char *value
)
331 int i
, size
= strlen(value
);
332 mxf_write_local_tag(pb
, size
*2, tag
);
333 for (i
= 0; i
< size
; i
++)
334 put_be16(pb
, value
[i
]);
337 static void mxf_write_identification(AVFormatContext
*s
)
339 ByteIOContext
*pb
= s
->pb
;
340 const char *company
= "FFmpeg";
341 const char *product
= "OP1a Muxer";
345 mxf_write_metadata_key(pb
, 0x013000);
346 PRINT_KEY(s
, "identification key", pb
->buf_ptr
- 16);
348 version
= s
->streams
[0]->codec
->flags
& CODEC_FLAG_BITEXACT
?
349 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION
);
350 length
= 84 + (strlen(company
)+strlen(product
)+strlen(version
))*2; // utf-16
351 klv_encode_ber_length(pb
, length
);
354 mxf_write_local_tag(pb
, 16, 0x3C0A);
355 mxf_write_uuid(pb
, Identification
, 0);
356 PRINT_KEY(s
, "identification uid", pb
->buf_ptr
- 16);
358 // write generation uid
359 mxf_write_local_tag(pb
, 16, 0x3C09);
360 mxf_write_uuid(pb
, Identification
, 1);
362 mxf_write_local_tag_utf16(pb
, 0x3C01, company
); // Company Name
363 mxf_write_local_tag_utf16(pb
, 0x3C02, product
); // Product Name
364 mxf_write_local_tag_utf16(pb
, 0x3C04, version
); // Version String
367 mxf_write_local_tag(pb
, 16, 0x3C05);
368 mxf_write_uuid(pb
, Identification
, 2);
370 // write modified date
371 mxf_write_local_tag(pb
, 8, 0x3C06);
375 static void mxf_write_content_storage(AVFormatContext
*s
)
377 ByteIOContext
*pb
= s
->pb
;
379 mxf_write_metadata_key(pb
, 0x011800);
380 PRINT_KEY(s
, "content storage key", pb
->buf_ptr
- 16);
381 klv_encode_ber_length(pb
, 64);
384 mxf_write_local_tag(pb
, 16, 0x3C0A);
385 mxf_write_uuid(pb
, ContentStorage
, 0);
386 PRINT_KEY(s
, "content storage uid", pb
->buf_ptr
- 16);
388 // write package reference
389 mxf_write_local_tag(pb
, 16 * 2 + 8, 0x1901);
390 mxf_write_refs_count(pb
, 2);
391 mxf_write_uuid(pb
, MaterialPackage
, 0);
392 mxf_write_uuid(pb
, SourcePackage
, 0);
395 static void mxf_write_track(AVFormatContext
*s
, AVStream
*st
, enum MXFMetadataSetType type
)
397 ByteIOContext
*pb
= s
->pb
;
398 MXFStreamContext
*sc
= st
->priv_data
;
400 mxf_write_metadata_key(pb
, 0x013b00);
401 PRINT_KEY(s
, "track key", pb
->buf_ptr
- 16);
402 klv_encode_ber_length(pb
, 80);
405 mxf_write_local_tag(pb
, 16, 0x3C0A);
406 mxf_write_uuid(pb
, type
== MaterialPackage
? Track
: Track
+ TypeBottom
, st
->index
);
407 PRINT_KEY(s
, "track uid", pb
->buf_ptr
- 16);
410 mxf_write_local_tag(pb
, 4, 0x4801);
411 put_be32(pb
, st
->index
);
413 // write track number
414 mxf_write_local_tag(pb
, 4, 0x4804);
415 if (type
== MaterialPackage
)
416 put_be32(pb
, 0); // track number of material package is 0
418 put_buffer(pb
, sc
->track_essence_element_key
+ 12, 4);
420 mxf_write_local_tag(pb
, 8, 0x4B01);
421 put_be32(pb
, st
->time_base
.den
);
422 put_be32(pb
, st
->time_base
.num
);
425 mxf_write_local_tag(pb
, 8, 0x4B02);
428 // write sequence refs
429 mxf_write_local_tag(pb
, 16, 0x4803);
430 mxf_write_uuid(pb
, type
== MaterialPackage
? Sequence
: Sequence
+ TypeBottom
, st
->index
);
433 static void mxf_write_common_fields(ByteIOContext
*pb
, AVStream
*st
)
435 const MXFDataDefinitionUL
*data_def_ul
= mxf_get_data_definition_ul(st
->codec
->codec_type
);
436 MXFStreamContext
*sc
= st
->priv_data
;
438 // find data define uls
439 mxf_write_local_tag(pb
, 16, 0x0201);
440 put_buffer(pb
, data_def_ul
->uid
, 16);
443 mxf_write_local_tag(pb
, 8, 0x0202);
444 put_be64(pb
, sc
->duration
);
447 static void mxf_write_sequence(AVFormatContext
*s
, AVStream
*st
, enum MXFMetadataSetType type
)
449 ByteIOContext
*pb
= s
->pb
;
451 mxf_write_metadata_key(pb
, 0x010f00);
452 PRINT_KEY(s
, "sequence key", pb
->buf_ptr
- 16);
453 klv_encode_ber_length(pb
, 80);
455 mxf_write_local_tag(pb
, 16, 0x3C0A);
456 mxf_write_uuid(pb
, type
== MaterialPackage
? Sequence
: Sequence
+ TypeBottom
, st
->index
);
458 PRINT_KEY(s
, "sequence uid", pb
->buf_ptr
- 16);
459 mxf_write_common_fields(pb
, st
);
461 // write structural component
462 mxf_write_local_tag(pb
, 16 + 8, 0x1001);
463 mxf_write_refs_count(pb
, 1);
464 mxf_write_uuid(pb
, type
== MaterialPackage
? SourceClip
: SourceClip
+ TypeBottom
, st
->index
);
467 static void mxf_write_structural_component(AVFormatContext
*s
, AVStream
*st
, enum MXFMetadataSetType type
)
469 ByteIOContext
*pb
= s
->pb
;
472 mxf_write_metadata_key(pb
, 0x011100);
473 PRINT_KEY(s
, "sturctural component key", pb
->buf_ptr
- 16);
474 klv_encode_ber_length(pb
, 108);
477 mxf_write_local_tag(pb
, 16, 0x3C0A);
478 mxf_write_uuid(pb
, type
== MaterialPackage
? SourceClip
: SourceClip
+ TypeBottom
, st
->index
);
480 PRINT_KEY(s
, "structural component uid", pb
->buf_ptr
- 16);
481 mxf_write_common_fields(pb
, st
);
483 // write start_position
484 mxf_write_local_tag(pb
, 8, 0x1201);
487 // write source package uid, end of the reference
488 mxf_write_local_tag(pb
, 32, 0x1101);
489 if (type
== SourcePackage
) {
490 for (i
= 0; i
< 4; i
++)
493 mxf_write_umid(pb
, SourcePackage
, 0);
495 // write source track id
496 mxf_write_local_tag(pb
, 4, 0x1102);
497 if (type
== SourcePackage
)
500 put_be32(pb
, st
->index
);
503 static void mxf_write_multi_descriptor(AVFormatContext
*s
)
505 ByteIOContext
*pb
= s
->pb
;
508 mxf_write_metadata_key(pb
, 0x014400);
509 PRINT_KEY(s
, "multiple descriptor key", pb
->buf_ptr
- 16);
510 klv_encode_ber_length(pb
, 64 + 16 * s
->nb_streams
);
512 mxf_write_local_tag(pb
, 16, 0x3C0A);
513 mxf_write_uuid(pb
, MultipleDescriptor
, 0);
514 PRINT_KEY(s
, "multi_desc uid", pb
->buf_ptr
- 16);
517 mxf_write_local_tag(pb
, 8, 0x3001);
518 put_be32(pb
, s
->streams
[0]->time_base
.den
);
519 put_be32(pb
, s
->streams
[0]->time_base
.num
);
521 // write essence container ul
522 mxf_write_local_tag(pb
, 16, 0x3004);
523 put_buffer(pb
, multiple_desc_ul
, 16);
525 // write sub descriptor refs
526 mxf_write_local_tag(pb
, s
->nb_streams
* 16 + 8, 0x3F01);
527 mxf_write_refs_count(pb
, s
->nb_streams
);
528 for (i
= 0; i
< s
->nb_streams
; i
++)
529 mxf_write_uuid(pb
, SubDescriptor
, i
);
532 static void mxf_write_generic_desc(ByteIOContext
*pb
, AVStream
*st
, const UID key
)
534 MXFStreamContext
*sc
= st
->priv_data
;
536 put_buffer(pb
, key
, 16);
537 klv_encode_ber_length(pb
, 108);
539 mxf_write_local_tag(pb
, 16, 0x3C0A);
540 mxf_write_uuid(pb
, SubDescriptor
, st
->index
);
542 mxf_write_local_tag(pb
, 4, 0x3006);
543 put_be32(pb
, st
->index
);
545 mxf_write_local_tag(pb
, 8, 0x3001);
546 put_be32(pb
, st
->time_base
.den
);
547 put_be32(pb
, st
->time_base
.num
);
549 mxf_write_local_tag(pb
, 16, 0x3004);
550 put_buffer(pb
, mxf_essence_container_uls
[sc
->index
].container_ul
, 16);
552 mxf_write_local_tag(pb
, 16, 0x3201);
553 put_buffer(pb
, *sc
->codec_ul
, 16);
556 static const UID mxf_mpegvideo_descriptor_key
= { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
557 static const UID mxf_wav_descriptor_key
= { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
559 static void mxf_write_mpegvideo_desc(AVFormatContext
*s
, AVStream
*st
)
561 ByteIOContext
*pb
= s
->pb
;
563 mxf_write_generic_desc(pb
, st
, mxf_mpegvideo_descriptor_key
);
565 mxf_write_local_tag(pb
, 4, 0x3203);
566 put_be32(pb
, st
->codec
->width
);
568 mxf_write_local_tag(pb
, 4, 0x3202);
569 put_be32(pb
, st
->codec
->height
);
571 mxf_write_local_tag(pb
, 8, 0x320E);
572 put_be32(pb
, st
->codec
->height
* st
->sample_aspect_ratio
.den
);
573 put_be32(pb
, st
->codec
->width
* st
->sample_aspect_ratio
.num
);
576 static void mxf_write_wav_desc(AVFormatContext
*s
, AVStream
*st
)
578 ByteIOContext
*pb
= s
->pb
;
580 mxf_write_generic_desc(pb
, st
, mxf_wav_descriptor_key
);
582 // write audio sampling rate
583 mxf_write_local_tag(pb
, 8, 0x3D03);
584 put_be32(pb
, st
->codec
->sample_rate
);
587 mxf_write_local_tag(pb
, 4, 0x3D07);
588 put_be32(pb
, st
->codec
->channels
);
590 mxf_write_local_tag(pb
, 4, 0x3D01);
591 put_be32(pb
, st
->codec
->bits_per_coded_sample
);
594 static void mxf_write_package(AVFormatContext
*s
, enum MXFMetadataSetType type
)
596 ByteIOContext
*pb
= s
->pb
;
599 if (type
== MaterialPackage
) {
600 mxf_write_metadata_key(pb
, 0x013600);
601 PRINT_KEY(s
, "Material Package key", pb
->buf_ptr
- 16);
602 klv_encode_ber_length(pb
, 92 + 16 * s
->nb_streams
);
604 mxf_write_metadata_key(pb
, 0x013700);
605 PRINT_KEY(s
, "Source Package key", pb
->buf_ptr
- 16);
606 klv_encode_ber_length(pb
, 112 + 16 * s
->nb_streams
); // 20 bytes length for descriptor reference
610 mxf_write_local_tag(pb
, 16, 0x3C0A);
611 mxf_write_uuid(pb
, type
, 0);
612 av_log(s
,AV_LOG_DEBUG
, "package type:%d\n", type
);
613 PRINT_KEY(s
, "package uid", pb
->buf_ptr
- 16);
615 // write package umid
616 mxf_write_local_tag(pb
, 32, 0x4401);
617 mxf_write_umid(pb
, type
, 0);
618 PRINT_KEY(s
, "package umid second part", pb
->buf_ptr
- 16);
621 mxf_write_local_tag(pb
, 8, 0x4405);
624 // write modified date
625 mxf_write_local_tag(pb
, 8, 0x4404);
629 mxf_write_local_tag(pb
, s
->nb_streams
* 16 + 8, 0x4403);
630 mxf_write_refs_count(pb
, s
->nb_streams
);
631 for (i
= 0; i
< s
->nb_streams
; i
++)
632 mxf_write_uuid(pb
, type
== MaterialPackage
? Track
: Track
+ TypeBottom
, i
);
634 // write multiple descriptor reference
635 if (type
== SourcePackage
) {
636 mxf_write_local_tag(pb
, 16, 0x4701);
637 if (s
->nb_streams
> 1) {
638 mxf_write_uuid(pb
, MultipleDescriptor
, 0);
639 mxf_write_multi_descriptor(s
);
641 mxf_write_uuid(pb
, SubDescriptor
, 0);
644 for (i
= 0; i
< s
->nb_streams
; i
++) {
645 AVStream
*st
= s
->streams
[i
];
646 mxf_write_track(s
, st
, type
);
647 mxf_write_sequence(s
, st
, type
);
648 mxf_write_structural_component(s
, st
, type
);
650 if (type
== SourcePackage
) {
651 MXFStreamContext
*sc
= st
->priv_data
;
652 mxf_essence_container_uls
[sc
->index
].write_desc(s
, st
);
657 static int mxf_write_header_metadata_sets(AVFormatContext
*s
)
659 mxf_write_preface(s
);
660 mxf_write_identification(s
);
661 mxf_write_content_storage(s
);
662 mxf_write_package(s
, MaterialPackage
);
663 mxf_write_package(s
, SourcePackage
);
667 static void mxf_write_partition(AVFormatContext
*s
, int bodysid
, const uint8_t *key
, int write_metadata
)
669 MXFContext
*mxf
= s
->priv_data
;
670 ByteIOContext
*pb
= s
->pb
;
671 int64_t header_byte_count_offset
;
674 put_buffer(pb
, key
, 16);
676 klv_encode_ber_length(pb
, 88 + 16 * mxf
->essence_container_count
);
678 // write partition value
679 put_be16(pb
, 1); // majorVersion
680 put_be16(pb
, 2); // minorVersion
681 put_be32(pb
, 1); // kagSize
683 put_be64(pb
, url_ftell(pb
) - 25); // thisPartition
684 put_be64(pb
, 0); // previousPartition
686 put_be64(pb
, mxf
->footer_partition_offset
); // footerPartition
689 header_byte_count_offset
= url_ftell(pb
);
690 put_be64(pb
, 0); // headerByteCount, update later
693 put_be64(pb
, 0); // indexByteCount
694 put_be32(pb
, 0); // indexSID
695 put_be64(pb
, 0); // bodyOffset
697 put_be32(pb
, bodysid
); // bodySID
698 put_buffer(pb
, op1a_ul
, 16); // operational pattern
701 mxf_write_essence_container_refs(s
);
703 if (write_metadata
) {
704 // mark the start of the headermetadata and calculate metadata size
705 int64_t pos
, start
= url_ftell(s
->pb
);
706 mxf_write_primer_pack(s
);
707 mxf_write_header_metadata_sets(s
);
708 pos
= url_ftell(s
->pb
);
709 // update header_byte_count
710 url_fseek(pb
, header_byte_count_offset
, SEEK_SET
);
711 put_be64(pb
, pos
- start
);
712 url_fseek(pb
, pos
, SEEK_SET
);
715 put_flush_packet(pb
);
718 static const UID mxf_mpeg2_codec_uls
[] = {
719 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
720 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
721 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
722 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
723 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
724 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
725 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
726 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
729 static const UID
*mxf_get_mpeg2_codec_ul(AVCodecContext
*avctx
)
731 if (avctx
->profile
== 4) { // Main
732 if (avctx
->level
== 8) // Main
733 return avctx
->gop_size
?
734 &mxf_mpeg2_codec_uls
[1] :
735 &mxf_mpeg2_codec_uls
[0];
736 else if (avctx
->level
== 4) // High
737 return avctx
->gop_size
?
738 &mxf_mpeg2_codec_uls
[5] :
739 &mxf_mpeg2_codec_uls
[4];
740 } else if (avctx
->profile
== 0) { // 422
741 if (avctx
->level
== 5) // Main
742 return avctx
->gop_size
?
743 &mxf_mpeg2_codec_uls
[3] :
744 &mxf_mpeg2_codec_uls
[2];
745 else if (avctx
->level
== 2) // High
746 return avctx
->gop_size
?
747 &mxf_mpeg2_codec_uls
[7] :
748 &mxf_mpeg2_codec_uls
[6];
753 static int mxf_write_header(AVFormatContext
*s
)
755 MXFContext
*mxf
= s
->priv_data
;
757 uint8_t present
[sizeof(mxf_essence_container_uls
)/
758 sizeof(*mxf_essence_container_uls
)] = {0};
760 for (i
= 0; i
< s
->nb_streams
; i
++) {
761 AVStream
*st
= s
->streams
[i
];
762 MXFStreamContext
*sc
= av_mallocz(sizeof(*sc
));
764 return AVERROR(ENOMEM
);
766 // set pts information
767 if (st
->codec
->codec_type
== CODEC_TYPE_VIDEO
)
768 av_set_pts_info(st
, 64, 1, st
->codec
->time_base
.den
);
769 else if (st
->codec
->codec_type
== CODEC_TYPE_AUDIO
)
770 av_set_pts_info(st
, 64, 1, st
->codec
->sample_rate
);
773 sc
->index
= mxf_get_essence_container_ul_index(st
->codec
->codec_id
);
774 if (sc
->index
== -1) {
775 av_log(s
, AV_LOG_ERROR
, "track %d: could not find essence container ul, "
776 "codec not currently supported in container\n", i
);
780 if (st
->codec
->codec_id
== CODEC_ID_MPEG2VIDEO
) {
781 if (st
->codec
->profile
== FF_PROFILE_UNKNOWN
||
782 st
->codec
->level
== FF_LEVEL_UNKNOWN
) {
783 av_log(s
, AV_LOG_ERROR
, "track %d: profile and level must be set for mpeg-2\n", i
);
786 sc
->codec_ul
= mxf_get_mpeg2_codec_ul(st
->codec
);
788 av_log(s
, AV_LOG_ERROR
, "track %d: could not find codec ul for mpeg-2, "
789 "unsupported profile/level\n", i
);
793 sc
->codec_ul
= &mxf_essence_container_uls
[sc
->index
].codec_ul
;
795 if (!present
[sc
->index
]) {
796 mxf
->essence_containers_indices
[mxf
->essence_container_count
++] = sc
->index
;
797 present
[sc
->index
] = 1;
799 present
[sc
->index
]++;
800 memcpy(sc
->track_essence_element_key
, mxf_essence_container_uls
[sc
->index
].element_ul
, 15);
801 sc
->track_essence_element_key
[15] = present
[sc
->index
];
802 PRINT_KEY(s
, "track essence element key", sc
->track_essence_element_key
);
805 mxf_write_partition(s
, 1, header_open_partition_key
, 1);
810 static int mxf_write_packet(AVFormatContext
*s
, AVPacket
*pkt
)
812 ByteIOContext
*pb
= s
->pb
;
813 AVStream
*st
= s
->streams
[pkt
->stream_index
];
814 MXFStreamContext
*sc
= st
->priv_data
;
816 put_buffer(pb
, sc
->track_essence_element_key
, 16); // write key
817 klv_encode_ber_length(pb
, pkt
->size
); // write length
818 put_buffer(pb
, pkt
->data
, pkt
->size
); // write value
820 sc
->duration
= FFMAX(pkt
->pts
+ pkt
->duration
, sc
->duration
);
822 put_flush_packet(pb
);
826 static int mxf_write_footer(AVFormatContext
*s
)
828 MXFContext
*mxf
= s
->priv_data
;
829 ByteIOContext
*pb
= s
->pb
;
831 mxf
->footer_partition_offset
= url_ftell(pb
);
832 mxf_write_partition(s
, 0, footer_partition_key
, 0);
833 if (!url_is_streamed(s
->pb
)) {
834 url_fseek(pb
, 0, SEEK_SET
);
835 mxf_write_partition(s
, 1, header_closed_partition_key
, 1);
841 AVOutputFormat mxf_muxer
= {
843 NULL_IF_CONFIG_SMALL("Material eXchange Format"),