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
[FF_ARRAY_ELEMS(mxf_essence_container_uls
)];
80 static const uint8_t uuid_base
[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
81 static const uint8_t umid_base
[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13,0x00,0x00,0x00 };
84 * complete key for operation pattern, partitions, and primer pack
86 static const uint8_t op1a_ul
[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x01,0x00 };
87 static const uint8_t footer_partition_key
[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
88 static const uint8_t primer_pack_key
[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
91 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
92 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
95 * partial key for header metadata
97 static const uint8_t header_metadata_key
[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
99 static const uint8_t multiple_desc_ul
[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
102 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
104 static const MXFLocalTagPair mxf_local_tag_batch
[] = {
106 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
107 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
108 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
109 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
110 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
111 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
112 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
113 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
115 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
116 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
117 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
118 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
119 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
120 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
122 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
123 // Essence Container Data
124 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
125 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
127 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
128 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
129 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
130 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
131 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
133 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
134 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
135 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
136 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
137 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
139 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
140 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
141 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
143 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
144 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
145 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
147 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
148 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
149 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
150 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
151 // Generic Picture Essence Descriptor
152 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
153 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
154 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
155 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
156 // Generic Sound Essence Descriptor
157 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
158 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
159 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
160 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
163 static void mxf_write_uuid(ByteIOContext
*pb
, enum MXFMetadataSetType type
, int value
)
165 put_buffer(pb
, uuid_base
, 12);
170 static void mxf_write_umid(ByteIOContext
*pb
, enum MXFMetadataSetType type
, int value
)
172 put_buffer(pb
, umid_base
, 16);
173 mxf_write_uuid(pb
, type
, value
);
176 static void mxf_write_refs_count(ByteIOContext
*pb
, int ref_count
)
178 put_be32(pb
, ref_count
);
182 static int klv_encode_ber_length(ByteIOContext
*pb
, uint64_t len
)
184 // Determine the best BER size
192 size
= (av_log2(len
) >> 3) + 1;
195 put_byte(pb
, 0x80 + size
);
198 put_byte(pb
, len
>> 8 * size
& 0xff);
204 * Get essence container ul index
206 static int mxf_get_essence_container_ul_index(enum CodecID id
)
209 for (i
= 0; i
< FF_ARRAY_ELEMS(mxf_essence_container_uls
); i
++)
210 if (mxf_essence_container_uls
[i
].id
== id
)
215 static void mxf_write_primer_pack(AVFormatContext
*s
)
217 ByteIOContext
*pb
= s
->pb
;
218 int local_tag_number
, i
= 0;
220 local_tag_number
= FF_ARRAY_ELEMS(mxf_local_tag_batch
);
222 put_buffer(pb
, primer_pack_key
, 16);
223 klv_encode_ber_length(pb
, local_tag_number
* 18 + 8);
225 put_be32(pb
, local_tag_number
); // local_tag num
226 put_be32(pb
, 18); // item size, always 18 according to the specs
228 for (i
= 0; i
< local_tag_number
; i
++) {
229 put_be16(pb
, mxf_local_tag_batch
[i
].local_tag
);
230 put_buffer(pb
, mxf_local_tag_batch
[i
].uid
, 16);
234 static void mxf_write_local_tag(ByteIOContext
*pb
, int size
, int tag
)
240 static void mxf_write_metadata_key(ByteIOContext
*pb
, unsigned int value
)
242 put_buffer(pb
, header_metadata_key
, 13);
246 static void mxf_free(AVFormatContext
*s
)
250 for (i
= 0; i
< s
->nb_streams
; i
++) {
251 AVStream
*st
= s
->streams
[i
];
252 av_freep(&st
->priv_data
);
256 static const MXFDataDefinitionUL
*mxf_get_data_definition_ul(enum CodecType type
)
258 const MXFDataDefinitionUL
*uls
= ff_mxf_data_definition_uls
;
259 while (uls
->type
!= CODEC_TYPE_DATA
) {
260 if (type
== uls
->type
)
267 static void mxf_write_essence_container_refs(AVFormatContext
*s
)
269 MXFContext
*c
= s
->priv_data
;
270 ByteIOContext
*pb
= s
->pb
;
273 mxf_write_refs_count(pb
, c
->essence_container_count
);
274 av_log(s
,AV_LOG_DEBUG
, "essence container count:%d\n", c
->essence_container_count
);
275 for (i
= 0; i
< c
->essence_container_count
; i
++) {
276 put_buffer(pb
, mxf_essence_container_uls
[c
->essence_containers_indices
[i
]].container_ul
, 16);
277 PRINT_KEY(s
, "essence container ul:\n", mxf_essence_container_uls
[c
->essence_containers_indices
[i
]].container_ul
);
281 static void mxf_write_preface(AVFormatContext
*s
)
283 MXFContext
*mxf
= s
->priv_data
;
284 ByteIOContext
*pb
= s
->pb
;
286 mxf_write_metadata_key(pb
, 0x012f00);
287 PRINT_KEY(s
, "preface key", pb
->buf_ptr
- 16);
288 klv_encode_ber_length(pb
, 130 + 16 * mxf
->essence_container_count
);
290 // write preface set uid
291 mxf_write_local_tag(pb
, 16, 0x3C0A);
292 mxf_write_uuid(pb
, Preface
, 0);
293 PRINT_KEY(s
, "preface uid", pb
->buf_ptr
- 16);
295 // write create date as unknown
296 mxf_write_local_tag(pb
, 8, 0x3B02);
300 mxf_write_local_tag(pb
, 2, 0x3B05);
303 // write identification_refs
304 mxf_write_local_tag(pb
, 16 + 8, 0x3B06);
305 mxf_write_refs_count(pb
, 1);
306 mxf_write_uuid(pb
, Identification
, 0);
308 // write content_storage_refs
309 mxf_write_local_tag(pb
, 16, 0x3B03);
310 mxf_write_uuid(pb
, ContentStorage
, 0);
312 mxf_write_local_tag(pb
, 16, 0x3B09);
313 put_buffer(pb
, op1a_ul
, 16);
315 // write essence_container_refs
316 mxf_write_local_tag(pb
, 8 + 16 * mxf
->essence_container_count
, 0x3B0A);
317 mxf_write_essence_container_refs(s
);
319 // write dm_scheme_refs
320 mxf_write_local_tag(pb
, 8, 0x3B0B);
325 * Write a local tag containing an ascii string as utf-16
327 static void mxf_write_local_tag_utf16(ByteIOContext
*pb
, int tag
, const char *value
)
329 int i
, size
= strlen(value
);
330 mxf_write_local_tag(pb
, size
*2, tag
);
331 for (i
= 0; i
< size
; i
++)
332 put_be16(pb
, value
[i
]);
335 static void mxf_write_identification(AVFormatContext
*s
)
337 ByteIOContext
*pb
= s
->pb
;
338 const char *company
= "FFmpeg";
339 const char *product
= "OP1a Muxer";
343 mxf_write_metadata_key(pb
, 0x013000);
344 PRINT_KEY(s
, "identification key", pb
->buf_ptr
- 16);
346 version
= s
->streams
[0]->codec
->flags
& CODEC_FLAG_BITEXACT
?
347 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION
);
348 length
= 84 + (strlen(company
)+strlen(product
)+strlen(version
))*2; // utf-16
349 klv_encode_ber_length(pb
, length
);
352 mxf_write_local_tag(pb
, 16, 0x3C0A);
353 mxf_write_uuid(pb
, Identification
, 0);
354 PRINT_KEY(s
, "identification uid", pb
->buf_ptr
- 16);
356 // write generation uid
357 mxf_write_local_tag(pb
, 16, 0x3C09);
358 mxf_write_uuid(pb
, Identification
, 1);
360 mxf_write_local_tag_utf16(pb
, 0x3C01, company
); // Company Name
361 mxf_write_local_tag_utf16(pb
, 0x3C02, product
); // Product Name
362 mxf_write_local_tag_utf16(pb
, 0x3C04, version
); // Version String
365 mxf_write_local_tag(pb
, 16, 0x3C05);
366 mxf_write_uuid(pb
, Identification
, 2);
368 // write modified date
369 mxf_write_local_tag(pb
, 8, 0x3C06);
373 static void mxf_write_content_storage(AVFormatContext
*s
)
375 ByteIOContext
*pb
= s
->pb
;
377 mxf_write_metadata_key(pb
, 0x011800);
378 PRINT_KEY(s
, "content storage key", pb
->buf_ptr
- 16);
379 klv_encode_ber_length(pb
, 64);
382 mxf_write_local_tag(pb
, 16, 0x3C0A);
383 mxf_write_uuid(pb
, ContentStorage
, 0);
384 PRINT_KEY(s
, "content storage uid", pb
->buf_ptr
- 16);
386 // write package reference
387 mxf_write_local_tag(pb
, 16 * 2 + 8, 0x1901);
388 mxf_write_refs_count(pb
, 2);
389 mxf_write_uuid(pb
, MaterialPackage
, 0);
390 mxf_write_uuid(pb
, SourcePackage
, 0);
393 static void mxf_write_track(AVFormatContext
*s
, AVStream
*st
, enum MXFMetadataSetType type
)
395 ByteIOContext
*pb
= s
->pb
;
396 MXFStreamContext
*sc
= st
->priv_data
;
398 mxf_write_metadata_key(pb
, 0x013b00);
399 PRINT_KEY(s
, "track key", pb
->buf_ptr
- 16);
400 klv_encode_ber_length(pb
, 80);
403 mxf_write_local_tag(pb
, 16, 0x3C0A);
404 mxf_write_uuid(pb
, type
== MaterialPackage
? Track
: Track
+ TypeBottom
, st
->index
);
405 PRINT_KEY(s
, "track uid", pb
->buf_ptr
- 16);
408 mxf_write_local_tag(pb
, 4, 0x4801);
409 put_be32(pb
, st
->index
);
411 // write track number
412 mxf_write_local_tag(pb
, 4, 0x4804);
413 if (type
== MaterialPackage
)
414 put_be32(pb
, 0); // track number of material package is 0
416 put_buffer(pb
, sc
->track_essence_element_key
+ 12, 4);
418 mxf_write_local_tag(pb
, 8, 0x4B01);
419 put_be32(pb
, st
->time_base
.den
);
420 put_be32(pb
, st
->time_base
.num
);
423 mxf_write_local_tag(pb
, 8, 0x4B02);
426 // write sequence refs
427 mxf_write_local_tag(pb
, 16, 0x4803);
428 mxf_write_uuid(pb
, type
== MaterialPackage
? Sequence
: Sequence
+ TypeBottom
, st
->index
);
431 static void mxf_write_common_fields(ByteIOContext
*pb
, AVStream
*st
)
433 const MXFDataDefinitionUL
*data_def_ul
= mxf_get_data_definition_ul(st
->codec
->codec_type
);
434 MXFStreamContext
*sc
= st
->priv_data
;
436 // find data define uls
437 mxf_write_local_tag(pb
, 16, 0x0201);
438 put_buffer(pb
, data_def_ul
->uid
, 16);
441 mxf_write_local_tag(pb
, 8, 0x0202);
442 put_be64(pb
, sc
->duration
);
445 static void mxf_write_sequence(AVFormatContext
*s
, AVStream
*st
, enum MXFMetadataSetType type
)
447 ByteIOContext
*pb
= s
->pb
;
449 mxf_write_metadata_key(pb
, 0x010f00);
450 PRINT_KEY(s
, "sequence key", pb
->buf_ptr
- 16);
451 klv_encode_ber_length(pb
, 80);
453 mxf_write_local_tag(pb
, 16, 0x3C0A);
454 mxf_write_uuid(pb
, type
== MaterialPackage
? Sequence
: Sequence
+ TypeBottom
, st
->index
);
456 PRINT_KEY(s
, "sequence uid", pb
->buf_ptr
- 16);
457 mxf_write_common_fields(pb
, st
);
459 // write structural component
460 mxf_write_local_tag(pb
, 16 + 8, 0x1001);
461 mxf_write_refs_count(pb
, 1);
462 mxf_write_uuid(pb
, type
== MaterialPackage
? SourceClip
: SourceClip
+ TypeBottom
, st
->index
);
465 static void mxf_write_structural_component(AVFormatContext
*s
, AVStream
*st
, enum MXFMetadataSetType type
)
467 ByteIOContext
*pb
= s
->pb
;
470 mxf_write_metadata_key(pb
, 0x011100);
471 PRINT_KEY(s
, "sturctural component key", pb
->buf_ptr
- 16);
472 klv_encode_ber_length(pb
, 108);
475 mxf_write_local_tag(pb
, 16, 0x3C0A);
476 mxf_write_uuid(pb
, type
== MaterialPackage
? SourceClip
: SourceClip
+ TypeBottom
, st
->index
);
478 PRINT_KEY(s
, "structural component uid", pb
->buf_ptr
- 16);
479 mxf_write_common_fields(pb
, st
);
481 // write start_position
482 mxf_write_local_tag(pb
, 8, 0x1201);
485 // write source package uid, end of the reference
486 mxf_write_local_tag(pb
, 32, 0x1101);
487 if (type
== SourcePackage
) {
488 for (i
= 0; i
< 4; i
++)
491 mxf_write_umid(pb
, SourcePackage
, 0);
493 // write source track id
494 mxf_write_local_tag(pb
, 4, 0x1102);
495 if (type
== SourcePackage
)
498 put_be32(pb
, st
->index
);
501 static void mxf_write_multi_descriptor(AVFormatContext
*s
)
503 ByteIOContext
*pb
= s
->pb
;
506 mxf_write_metadata_key(pb
, 0x014400);
507 PRINT_KEY(s
, "multiple descriptor key", pb
->buf_ptr
- 16);
508 klv_encode_ber_length(pb
, 64 + 16 * s
->nb_streams
);
510 mxf_write_local_tag(pb
, 16, 0x3C0A);
511 mxf_write_uuid(pb
, MultipleDescriptor
, 0);
512 PRINT_KEY(s
, "multi_desc uid", pb
->buf_ptr
- 16);
515 mxf_write_local_tag(pb
, 8, 0x3001);
516 put_be32(pb
, s
->streams
[0]->time_base
.den
);
517 put_be32(pb
, s
->streams
[0]->time_base
.num
);
519 // write essence container ul
520 mxf_write_local_tag(pb
, 16, 0x3004);
521 put_buffer(pb
, multiple_desc_ul
, 16);
523 // write sub descriptor refs
524 mxf_write_local_tag(pb
, s
->nb_streams
* 16 + 8, 0x3F01);
525 mxf_write_refs_count(pb
, s
->nb_streams
);
526 for (i
= 0; i
< s
->nb_streams
; i
++)
527 mxf_write_uuid(pb
, SubDescriptor
, i
);
530 static void mxf_write_generic_desc(ByteIOContext
*pb
, AVStream
*st
, const UID key
)
532 MXFStreamContext
*sc
= st
->priv_data
;
534 put_buffer(pb
, key
, 16);
535 klv_encode_ber_length(pb
, 108);
537 mxf_write_local_tag(pb
, 16, 0x3C0A);
538 mxf_write_uuid(pb
, SubDescriptor
, st
->index
);
540 mxf_write_local_tag(pb
, 4, 0x3006);
541 put_be32(pb
, st
->index
);
543 mxf_write_local_tag(pb
, 8, 0x3001);
544 put_be32(pb
, st
->time_base
.den
);
545 put_be32(pb
, st
->time_base
.num
);
547 mxf_write_local_tag(pb
, 16, 0x3004);
548 put_buffer(pb
, mxf_essence_container_uls
[sc
->index
].container_ul
, 16);
550 mxf_write_local_tag(pb
, 16, 0x3201);
551 put_buffer(pb
, *sc
->codec_ul
, 16);
554 static const UID mxf_mpegvideo_descriptor_key
= { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
555 static const UID mxf_wav_descriptor_key
= { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
557 static void mxf_write_mpegvideo_desc(AVFormatContext
*s
, AVStream
*st
)
559 ByteIOContext
*pb
= s
->pb
;
561 mxf_write_generic_desc(pb
, st
, mxf_mpegvideo_descriptor_key
);
563 mxf_write_local_tag(pb
, 4, 0x3203);
564 put_be32(pb
, st
->codec
->width
);
566 mxf_write_local_tag(pb
, 4, 0x3202);
567 put_be32(pb
, st
->codec
->height
);
569 mxf_write_local_tag(pb
, 8, 0x320E);
570 put_be32(pb
, st
->codec
->height
* st
->sample_aspect_ratio
.den
);
571 put_be32(pb
, st
->codec
->width
* st
->sample_aspect_ratio
.num
);
574 static void mxf_write_wav_desc(AVFormatContext
*s
, AVStream
*st
)
576 ByteIOContext
*pb
= s
->pb
;
578 mxf_write_generic_desc(pb
, st
, mxf_wav_descriptor_key
);
580 // write audio sampling rate
581 mxf_write_local_tag(pb
, 8, 0x3D03);
582 put_be32(pb
, st
->codec
->sample_rate
);
585 mxf_write_local_tag(pb
, 4, 0x3D07);
586 put_be32(pb
, st
->codec
->channels
);
588 mxf_write_local_tag(pb
, 4, 0x3D01);
589 put_be32(pb
, st
->codec
->bits_per_coded_sample
);
592 static void mxf_write_package(AVFormatContext
*s
, enum MXFMetadataSetType type
)
594 ByteIOContext
*pb
= s
->pb
;
597 if (type
== MaterialPackage
) {
598 mxf_write_metadata_key(pb
, 0x013600);
599 PRINT_KEY(s
, "Material Package key", pb
->buf_ptr
- 16);
600 klv_encode_ber_length(pb
, 92 + 16 * s
->nb_streams
);
602 mxf_write_metadata_key(pb
, 0x013700);
603 PRINT_KEY(s
, "Source Package key", pb
->buf_ptr
- 16);
604 klv_encode_ber_length(pb
, 112 + 16 * s
->nb_streams
); // 20 bytes length for descriptor reference
608 mxf_write_local_tag(pb
, 16, 0x3C0A);
609 mxf_write_uuid(pb
, type
, 0);
610 av_log(s
,AV_LOG_DEBUG
, "package type:%d\n", type
);
611 PRINT_KEY(s
, "package uid", pb
->buf_ptr
- 16);
613 // write package umid
614 mxf_write_local_tag(pb
, 32, 0x4401);
615 mxf_write_umid(pb
, type
, 0);
616 PRINT_KEY(s
, "package umid second part", pb
->buf_ptr
- 16);
619 mxf_write_local_tag(pb
, 8, 0x4405);
622 // write modified date
623 mxf_write_local_tag(pb
, 8, 0x4404);
627 mxf_write_local_tag(pb
, s
->nb_streams
* 16 + 8, 0x4403);
628 mxf_write_refs_count(pb
, s
->nb_streams
);
629 for (i
= 0; i
< s
->nb_streams
; i
++)
630 mxf_write_uuid(pb
, type
== MaterialPackage
? Track
: Track
+ TypeBottom
, i
);
632 // write multiple descriptor reference
633 if (type
== SourcePackage
) {
634 mxf_write_local_tag(pb
, 16, 0x4701);
635 if (s
->nb_streams
> 1) {
636 mxf_write_uuid(pb
, MultipleDescriptor
, 0);
637 mxf_write_multi_descriptor(s
);
639 mxf_write_uuid(pb
, SubDescriptor
, 0);
642 for (i
= 0; i
< s
->nb_streams
; i
++) {
643 AVStream
*st
= s
->streams
[i
];
644 mxf_write_track(s
, st
, type
);
645 mxf_write_sequence(s
, st
, type
);
646 mxf_write_structural_component(s
, st
, type
);
648 if (type
== SourcePackage
) {
649 MXFStreamContext
*sc
= st
->priv_data
;
650 mxf_essence_container_uls
[sc
->index
].write_desc(s
, st
);
655 static int mxf_write_header_metadata_sets(AVFormatContext
*s
)
657 mxf_write_preface(s
);
658 mxf_write_identification(s
);
659 mxf_write_content_storage(s
);
660 mxf_write_package(s
, MaterialPackage
);
661 mxf_write_package(s
, SourcePackage
);
665 static void mxf_write_partition(AVFormatContext
*s
, int bodysid
, const uint8_t *key
, int write_metadata
)
667 MXFContext
*mxf
= s
->priv_data
;
668 ByteIOContext
*pb
= s
->pb
;
669 int64_t header_byte_count_offset
;
672 put_buffer(pb
, key
, 16);
674 klv_encode_ber_length(pb
, 88 + 16 * mxf
->essence_container_count
);
676 // write partition value
677 put_be16(pb
, 1); // majorVersion
678 put_be16(pb
, 2); // minorVersion
679 put_be32(pb
, 1); // kagSize
681 put_be64(pb
, url_ftell(pb
) - 25); // thisPartition
682 put_be64(pb
, 0); // previousPartition
684 put_be64(pb
, mxf
->footer_partition_offset
); // footerPartition
687 header_byte_count_offset
= url_ftell(pb
);
688 put_be64(pb
, 0); // headerByteCount, update later
691 put_be64(pb
, 0); // indexByteCount
692 put_be32(pb
, 0); // indexSID
693 put_be64(pb
, 0); // bodyOffset
695 put_be32(pb
, bodysid
); // bodySID
696 put_buffer(pb
, op1a_ul
, 16); // operational pattern
699 mxf_write_essence_container_refs(s
);
701 if (write_metadata
) {
702 // mark the start of the headermetadata and calculate metadata size
703 int64_t pos
, start
= url_ftell(s
->pb
);
704 mxf_write_primer_pack(s
);
705 mxf_write_header_metadata_sets(s
);
706 pos
= url_ftell(s
->pb
);
707 // update header_byte_count
708 url_fseek(pb
, header_byte_count_offset
, SEEK_SET
);
709 put_be64(pb
, pos
- start
);
710 url_fseek(pb
, pos
, SEEK_SET
);
713 put_flush_packet(pb
);
716 static const UID mxf_mpeg2_codec_uls
[] = {
717 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
718 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
719 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
720 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
721 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
722 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
723 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
724 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
727 static const UID
*mxf_get_mpeg2_codec_ul(AVCodecContext
*avctx
)
729 if (avctx
->profile
== 4) { // Main
730 if (avctx
->level
== 8) // Main
731 return avctx
->gop_size
?
732 &mxf_mpeg2_codec_uls
[1] :
733 &mxf_mpeg2_codec_uls
[0];
734 else if (avctx
->level
== 4) // High
735 return avctx
->gop_size
?
736 &mxf_mpeg2_codec_uls
[5] :
737 &mxf_mpeg2_codec_uls
[4];
738 } else if (avctx
->profile
== 0) { // 422
739 if (avctx
->level
== 5) // Main
740 return avctx
->gop_size
?
741 &mxf_mpeg2_codec_uls
[3] :
742 &mxf_mpeg2_codec_uls
[2];
743 else if (avctx
->level
== 2) // High
744 return avctx
->gop_size
?
745 &mxf_mpeg2_codec_uls
[7] :
746 &mxf_mpeg2_codec_uls
[6];
751 static int mxf_write_header(AVFormatContext
*s
)
753 MXFContext
*mxf
= s
->priv_data
;
755 uint8_t present
[FF_ARRAY_ELEMS(mxf_essence_container_uls
)] = {0};
757 for (i
= 0; i
< s
->nb_streams
; i
++) {
758 AVStream
*st
= s
->streams
[i
];
759 MXFStreamContext
*sc
= av_mallocz(sizeof(*sc
));
761 return AVERROR(ENOMEM
);
763 // set pts information
764 if (st
->codec
->codec_type
== CODEC_TYPE_VIDEO
)
765 av_set_pts_info(st
, 64, 1, st
->codec
->time_base
.den
);
766 else if (st
->codec
->codec_type
== CODEC_TYPE_AUDIO
)
767 av_set_pts_info(st
, 64, 1, st
->codec
->sample_rate
);
770 sc
->index
= mxf_get_essence_container_ul_index(st
->codec
->codec_id
);
771 if (sc
->index
== -1) {
772 av_log(s
, AV_LOG_ERROR
, "track %d: could not find essence container ul, "
773 "codec not currently supported in container\n", i
);
777 if (st
->codec
->codec_id
== CODEC_ID_MPEG2VIDEO
) {
778 if (st
->codec
->profile
== FF_PROFILE_UNKNOWN
||
779 st
->codec
->level
== FF_LEVEL_UNKNOWN
) {
780 av_log(s
, AV_LOG_ERROR
, "track %d: profile and level must be set for mpeg-2\n", i
);
783 sc
->codec_ul
= mxf_get_mpeg2_codec_ul(st
->codec
);
785 av_log(s
, AV_LOG_ERROR
, "track %d: could not find codec ul for mpeg-2, "
786 "unsupported profile/level\n", i
);
790 sc
->codec_ul
= &mxf_essence_container_uls
[sc
->index
].codec_ul
;
792 if (!present
[sc
->index
]) {
793 mxf
->essence_containers_indices
[mxf
->essence_container_count
++] = sc
->index
;
794 present
[sc
->index
] = 1;
796 present
[sc
->index
]++;
797 memcpy(sc
->track_essence_element_key
, mxf_essence_container_uls
[sc
->index
].element_ul
, 15);
798 sc
->track_essence_element_key
[15] = present
[sc
->index
];
799 PRINT_KEY(s
, "track essence element key", sc
->track_essence_element_key
);
802 mxf_write_partition(s
, 1, header_open_partition_key
, 1);
807 static int mxf_write_packet(AVFormatContext
*s
, AVPacket
*pkt
)
809 ByteIOContext
*pb
= s
->pb
;
810 AVStream
*st
= s
->streams
[pkt
->stream_index
];
811 MXFStreamContext
*sc
= st
->priv_data
;
813 put_buffer(pb
, sc
->track_essence_element_key
, 16); // write key
814 klv_encode_ber_length(pb
, pkt
->size
); // write length
815 put_buffer(pb
, pkt
->data
, pkt
->size
); // write value
817 sc
->duration
= FFMAX(pkt
->pts
+ pkt
->duration
, sc
->duration
);
819 put_flush_packet(pb
);
823 static int mxf_write_footer(AVFormatContext
*s
)
825 MXFContext
*mxf
= s
->priv_data
;
826 ByteIOContext
*pb
= s
->pb
;
828 mxf
->footer_partition_offset
= url_ftell(pb
);
829 mxf_write_partition(s
, 0, footer_partition_key
, 0);
830 if (!url_is_streamed(s
->pb
)) {
831 url_fseek(pb
, 0, SEEK_SET
);
832 mxf_write_partition(s
, 1, header_closed_partition_key
, 1);
838 AVOutputFormat mxf_muxer
= {
840 NULL_IF_CONFIG_SMALL("Material eXchange Format"),