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;
45 typedef struct MXFContext {
46 int64_t header_byte_count;
47 int64_t header_byte_count_offset;
48 int64_t header_footer_partition_offset;
49 int essence_container_count;
56 } MXFDescriptorWriteTableEntry;
58 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
59 static const uint8_t umid_base[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x0F,0x00,0x13,0x00,0x00,0x00 };
62 * complete key for operation pattern, partitions, and primer pack
64 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x01,0x00 };
65 static const uint8_t header_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x04,0x00 }; // ClosedComplete
66 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
67 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
70 * partial key for header metadata
72 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
74 static const MXFCodecUL mxf_essence_element_key[] = {
75 { { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 }, 14, CODEC_ID_MPEG2VIDEO},
76 { { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 }, 14, CODEC_ID_PCM_S16LE},
77 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, CODEC_ID_NONE},
80 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
83 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
85 static const MXFLocalTagPair mxf_local_tag_batch[] = {
87 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
88 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
89 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
90 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
91 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
92 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
93 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
94 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
96 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
97 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
98 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
99 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
100 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
101 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
103 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
104 // Essence Container Data
105 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
106 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
108 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
109 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
110 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
111 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
112 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
114 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
115 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x03,0x00,0x00}}, /* Track Number */
116 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
117 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
118 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
120 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
121 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
122 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
124 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Start position */
125 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
126 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
128 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
129 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
130 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
131 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
132 // Generic Picture Essence Descriptor
133 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
134 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
135 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
136 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
137 // Generic Sound Essence Descriptor
138 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
139 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
140 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
141 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
144 static void mxf_write_uuid(ByteIOContext *pb, enum CodecID type, int value)
146 put_buffer(pb, uuid_base, 12);
151 static void mxf_write_umid(ByteIOContext *pb, enum CodecID type, int value)
153 put_buffer(pb, umid_base, 16);
154 mxf_write_uuid(pb, type, value);
157 static void mxf_write_refs_count(ByteIOContext *pb, int ref_count)
159 put_be32(pb, ref_count);
163 static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len)
165 // Determine the best BER size
173 size = (av_log2(len) >> 3) + 1;
176 put_byte(pb, 0x80 + size);
179 put_byte(pb, len >> 8 * size & 0xff);
184 static const MXFCodecUL *mxf_get_essence_container_ul(enum CodecID type)
186 const MXFCodecUL *uls = ff_mxf_essence_container_uls;
187 while (uls->id != CODEC_ID_NONE) {
195 static void mxf_write_primer_pack(AVFormatContext *s)
197 ByteIOContext *pb = s->pb;
198 int local_tag_number, i = 0;
200 local_tag_number = sizeof(mxf_local_tag_batch) / sizeof(MXFLocalTagPair);
202 put_buffer(pb, primer_pack_key, 16);
203 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
205 put_be32(pb, local_tag_number); // local_tag num
206 put_be32(pb, 18); // item size, always 18 according to the specs
208 for (i = 0; i < local_tag_number; i++) {
209 put_be16(pb, mxf_local_tag_batch[i].local_tag);
210 put_buffer(pb, mxf_local_tag_batch[i].uid, 16);
214 static void mxf_write_local_tag(ByteIOContext *pb, int value_size, int tag)
217 put_be16(pb, value_size);
220 static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value)
222 put_buffer(pb, header_metadata_key, 13);
226 static void mxf_free(AVFormatContext *s)
231 for (i = 0; i < s->nb_streams; i++) {
233 av_freep(&st->priv_data);
237 static const MXFDataDefinitionUL *mxf_get_data_definition_ul(enum CodecType type)
239 const MXFDataDefinitionUL *uls = ff_mxf_data_definition_uls;
240 while (uls->type != CODEC_TYPE_DATA) {
241 if (type == uls->type)
248 static int mxf_write_essence_container_refs(AVFormatContext *s, int write)
250 ByteIOContext *pb = s->pb;
252 int i, count = 0, j = 0;
253 const MXFCodecUL *codec_ul;
254 int essence_container_ul_sign[sizeof(ff_mxf_essence_container_uls) / sizeof(MXFCodecUL)] = { 0 };
256 for (codec_ul = ff_mxf_essence_container_uls; codec_ul->id; codec_ul++) {
257 for (i = 0; i < s->nb_streams; i++) {
259 if (st->codec->codec_id == codec_ul->id) {
260 essence_container_ul_sign[count] = j;
266 // considering WAV/AES3 frame wrapped, when get the first CODEC_ID_PCM_S16LE, break;
267 // this is a temporary method, when we can get more information, modify this.
268 if (codec_ul->id == CODEC_ID_PCM_S16LE)
273 mxf_write_refs_count(pb, count);
274 for (i = 0; i < count; i++)
275 put_buffer(pb, ff_mxf_essence_container_uls[essence_container_ul_sign[i]].uid, 16);
276 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", count);
277 for (i = 0; i < count; i++)
278 PRINT_KEY(s, "essence container ul:\n", ff_mxf_essence_container_uls[essence_container_ul_sign[i]].uid);
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, 1);
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_package(AVFormatContext *s, enum MXFMetadataSetType type)
397 ByteIOContext *pb = s->pb;
400 if (type == MaterialPackage) {
401 mxf_write_metadata_key(pb, 0x013600);
402 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
403 klv_encode_ber_length(pb, 92 + 16 * s->nb_streams);
405 mxf_write_metadata_key(pb, 0x013700);
406 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
407 klv_encode_ber_length(pb, 112 + 16 * s->nb_streams); // 20 bytes length for descriptor reference
411 mxf_write_local_tag(pb, 16, 0x3C0A);
412 mxf_write_uuid(pb, type, 0);
413 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
414 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
416 // write package umid
417 mxf_write_local_tag(pb, 32, 0x4401);
418 mxf_write_umid(pb, type, 0);
419 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
422 mxf_write_local_tag(pb, 8, 0x4405);
425 // write modified date
426 mxf_write_local_tag(pb, 8, 0x4404);
430 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x4403);
431 mxf_write_refs_count(pb, s->nb_streams);
432 for (i = 0; i < s->nb_streams; i++)
433 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
435 // write multiple descriptor reference
436 if (type == SourcePackage) {
437 mxf_write_local_tag(pb, 16, 0x4701);
438 mxf_write_uuid(pb, MultipleDescriptor, 0);
442 static void mxf_write_track(AVFormatContext *s, int stream_index, enum MXFMetadataSetType type, int *track_number_sign)
444 ByteIOContext *pb = s->pb;
446 MXFStreamContext *sc;
447 const MXFCodecUL *element;
450 mxf_write_metadata_key(pb, 0x013b00);
451 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
452 klv_encode_ber_length(pb, 80);
454 st = s->streams[stream_index];
458 mxf_write_local_tag(pb, 16, 0x3C0A);
459 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, stream_index);
460 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
463 mxf_write_local_tag(pb, 4, 0x4801);
464 put_be32(pb, stream_index);
466 mxf_write_local_tag(pb, 4, 0x4804);
467 if (type != MaterialPackage) {
468 for (element = mxf_essence_element_key; element->id != CODEC_ID_NONE; element++) {
469 if (st->codec->codec_id== element->id) {
470 // set essence_element key
471 memcpy(sc->track_essence_element_key, element->uid, 16);
472 sc->track_essence_element_key[15] += track_number_sign[i];
473 // write track number
474 put_buffer(pb, sc->track_essence_element_key + 12, 4);
476 track_number_sign[i]++;
482 put_be32(pb, 0); // track number of material package is 0
484 mxf_write_local_tag(pb, 8, 0x4B01);
485 put_be32(pb, st->time_base.den);
486 put_be32(pb, st->time_base.num);
489 mxf_write_local_tag(pb, 8, 0x4B02);
492 // write sequence refs
493 mxf_write_local_tag(pb, 16, 0x4803);
494 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, stream_index);
497 static void mxf_write_common_fields(ByteIOContext *pb, AVStream *st)
499 const MXFDataDefinitionUL *data_def_ul;
501 // find data define uls
502 data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
503 mxf_write_local_tag(pb, 16, 0x0201);
504 put_buffer(pb, data_def_ul->uid, 16);
507 mxf_write_local_tag(pb, 8, 0x0202);
508 put_be64(pb, st->duration);
511 static void mxf_write_sequence(AVFormatContext *s, int stream_index, enum MXFMetadataSetType type)
513 ByteIOContext *pb = s->pb;
516 mxf_write_metadata_key(pb, 0x010f00);
517 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
518 klv_encode_ber_length(pb, 80);
520 st = s->streams[stream_index];
522 mxf_write_local_tag(pb, 16, 0x3C0A);
523 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, stream_index);
525 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
526 mxf_write_common_fields(pb, st);
528 // write structural component
529 mxf_write_local_tag(pb, 16 + 8, 0x1001);
530 mxf_write_refs_count(pb, 1);
531 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, stream_index);
534 static void mxf_write_structural_component(AVFormatContext *s, int stream_index, enum MXFMetadataSetType type)
536 ByteIOContext *pb = s->pb;
540 mxf_write_metadata_key(pb, 0x011100);
541 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
542 klv_encode_ber_length(pb, 108);
544 st = s->streams[stream_index];
547 mxf_write_local_tag(pb, 16, 0x3C0A);
548 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, stream_index);
550 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
551 mxf_write_common_fields(pb, st);
553 // write start_position
554 mxf_write_local_tag(pb, 8, 0x1201);
557 // write source package uid, end of the reference
558 mxf_write_local_tag(pb, 32, 0x1101);
559 if (type == SourcePackage) {
560 for (i = 0; i < 4; i++)
563 mxf_write_umid(pb, SourcePackage, 0);
565 // write source track id
566 mxf_write_local_tag(pb, 4, 0x1102);
567 if (type == SourcePackage)
570 put_be32(pb, stream_index);
573 static void mxf_write_multi_descriptor(AVFormatContext *s)
575 ByteIOContext *pb = s->pb;
578 mxf_write_metadata_key(pb, 0x014400);
579 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
580 klv_encode_ber_length(pb, 64 + 16 * s->nb_streams);
582 mxf_write_local_tag(pb, 16, 0x3C0A);
583 mxf_write_uuid(pb, MultipleDescriptor, 0);
584 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
587 mxf_write_local_tag(pb, 8, 0x3001);
588 put_be32(pb, s->streams[0]->time_base.den);
589 put_be32(pb, s->streams[0]->time_base.num);
591 // write essence container ul
592 mxf_write_local_tag(pb, 16, 0x3004);
593 put_buffer(pb, multiple_desc_ul, 16);
595 // write sub descriptor refs
596 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
597 mxf_write_refs_count(pb, s->nb_streams);
598 for (i = 0; i < s->nb_streams; i++)
599 mxf_write_uuid(pb, SubDescriptor, i);
602 static void mxf_write_generic_desc(ByteIOContext *pb, const MXFDescriptorWriteTableEntry *desc_tbl, AVStream *st)
604 const MXFCodecUL *codec_ul;
606 put_buffer(pb, desc_tbl->key, 16);
607 klv_encode_ber_length(pb, 108);
609 mxf_write_local_tag(pb, 16, 0x3C0A);
610 mxf_write_uuid(pb, SubDescriptor, st->index);
612 mxf_write_local_tag(pb, 4, 0x3006);
613 put_be32(pb, st->index);
615 mxf_write_local_tag(pb, 8, 0x3001);
616 put_be32(pb, st->time_base.den);
617 put_be32(pb, st->time_base.num);
619 codec_ul = mxf_get_essence_container_ul(st->codec->codec_id);
620 mxf_write_local_tag(pb, 16, 0x3004);
621 put_buffer(pb, codec_ul->uid, 16);
624 static void mxf_write_mpegvideo_desc(AVFormatContext *s, const MXFDescriptorWriteTableEntry *desc_tbl, int stream_index)
626 ByteIOContext *pb = s->pb;
629 st = s->streams[stream_index];
630 mxf_write_generic_desc(pb, desc_tbl, st);
632 mxf_write_local_tag(pb, 4, 0x3203);
633 put_be32(pb, st->codec->width);
635 mxf_write_local_tag(pb, 4, 0x3202);
636 put_be32(pb, st->codec->height);
638 mxf_write_local_tag(pb, 8, 0x320E);
639 put_be32(pb, st->codec->height * st->sample_aspect_ratio.den);
640 put_be32(pb, st->codec->width * st->sample_aspect_ratio.num);
642 // tmp write, will modified later
643 mxf_write_local_tag(pb, 16, 0x3201);
644 put_buffer(pb, ff_mxf_codec_uls->uid, 16);
647 static void mxf_write_wav_desc(AVFormatContext *s, const MXFDescriptorWriteTableEntry *desc_tbl, int stream_index)
649 ByteIOContext *pb = s->pb;
652 st = s->streams[stream_index];
653 mxf_write_generic_desc(pb, desc_tbl, st);
655 // write audio sampling rate
656 mxf_write_local_tag(pb, 8, 0x3D03);
657 put_be32(pb, st->codec->sample_rate);
660 mxf_write_local_tag(pb, 4, 0x3D07);
661 put_be32(pb, st->codec->channels);
663 mxf_write_local_tag(pb, 4, 0x3D01);
664 put_be32(pb, st->codec->bits_per_sample);
666 // tmp write, will modified later
667 mxf_write_local_tag(pb, 16, 0x3201);
668 put_buffer(pb, (ff_mxf_codec_uls + 8)->uid, 16);
671 static const MXFDescriptorWriteTableEntry mxf_descriptor_write_table[] = {
672 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_write_mpegvideo_desc, CODEC_ID_MPEG2VIDEO},
673 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }, mxf_write_wav_desc, CODEC_ID_PCM_S16LE},
674 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL, CODEC_ID_NONE},
677 static void mxf_build_structural_metadata(AVFormatContext *s, enum MXFMetadataSetType type)
680 const MXFDescriptorWriteTableEntry *desc = NULL;
681 int track_number_sign[sizeof(mxf_essence_element_key)/sizeof(MXFCodecUL)] = { 0 };
683 mxf_write_package(s, type);
684 if (type == SourcePackage)
685 mxf_write_multi_descriptor(s);
687 for (i = 0;i < s->nb_streams; i++) {
688 mxf_write_track(s, i, type, track_number_sign);
689 mxf_write_sequence(s, i, type);
690 mxf_write_structural_component(s, i, type);
692 if (type == SourcePackage) {
693 for (desc = mxf_descriptor_write_table; desc->write; desc++) {
694 if (s->streams[i]->codec->codec_id == desc->type) {
695 desc->write(s, desc, i);
703 static int mxf_write_header_metadata_sets(AVFormatContext *s)
706 MXFStreamContext *sc = NULL;
709 mxf_write_preface(s);
710 mxf_write_identification(s);
711 mxf_write_content_storage(s);
713 for (i = 0; i < s->nb_streams; i++) {
715 sc = av_mallocz(sizeof(MXFStreamContext));
717 return AVERROR(ENOMEM);
719 // set pts information
720 if (st->codec->codec_type == CODEC_TYPE_VIDEO)
721 av_set_pts_info(st, 64, 1, st->codec->time_base.den);
722 else if (st->codec->codec_type == CODEC_TYPE_AUDIO)
723 av_set_pts_info(st, 64, 1, st->codec->sample_rate);
726 mxf_build_structural_metadata(s, MaterialPackage);
727 mxf_build_structural_metadata(s, SourcePackage);
731 static void mxf_write_partition(AVFormatContext *s, int64_t byte_position, int bodysid, const uint8_t *key)
733 MXFContext *mxf = s->priv_data;
734 ByteIOContext *pb = s->pb;
737 put_buffer(pb, key, 16);
738 if (!mxf->essence_container_count)
739 mxf->essence_container_count = mxf_write_essence_container_refs(s, 0);
740 klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count);
742 // write partition value
743 put_be16(pb, 1); // majorVersion
744 put_be16(pb, 2); // minorVersion
745 put_be32(pb, 1); // kagSize
747 put_be64(pb, byte_position); // thisPartition
748 put_be64(pb, 0); // previousPartition
752 mxf->header_footer_partition_offset = url_ftell(pb);
753 put_be64(pb, byte_position); // footerPartition,update later
757 mxf->header_byte_count_offset = url_ftell(pb);
758 put_be64(pb, 0); // headerByteCount, update later
761 put_be64(pb, 0); // indexByteCount
762 put_be32(pb, 0); // indexSID
763 put_be64(pb, 0); // bodyOffset
765 put_be32(pb, bodysid); // bodySID
766 put_buffer(pb, op1a_ul, 16); // operational pattern
769 mxf_write_essence_container_refs(s, 1);
772 static int mux_write_header(AVFormatContext *s)
774 MXFContext *mxf = s->priv_data;
775 ByteIOContext *pb = s->pb;
776 int64_t header_metadata_start, offset_now;
778 mxf_write_partition(s, 0, 1, header_partition_key);
780 // mark the start of the headermetadata and calculate metadata size
781 header_metadata_start = url_ftell(s->pb);
782 mxf_write_primer_pack(s);
783 if (mxf_write_header_metadata_sets(s) < 0)
785 offset_now = url_ftell(s->pb);
786 mxf->header_byte_count = offset_now - header_metadata_start;
787 // update header_byte_count
788 url_fseek(pb, mxf->header_byte_count_offset, SEEK_SET);
789 put_be64(pb, mxf->header_byte_count);
790 url_fseek(pb, offset_now, SEEK_SET);
792 put_flush_packet(pb);
799 static int mux_write_packet(AVFormatContext *s, AVPacket *pkt)
801 ByteIOContext *pb = s->pb;
802 AVStream *st = s->streams[pkt->stream_index];
803 MXFStreamContext *sc = st->priv_data;
805 put_buffer(pb, sc->track_essence_element_key, 16); // write key
806 klv_encode_ber_length(pb, pkt->size); // write length
807 put_buffer(pb, pkt->data, pkt->size); // write value
809 put_flush_packet(pb);
813 static void mxf_update_header_partition(AVFormatContext *s, int64_t footer_partition_offset)
815 MXFContext *mxf = s->priv_data;
816 ByteIOContext *pb = s->pb;
818 url_fseek(pb, mxf->header_footer_partition_offset, SEEK_SET);
819 put_be64(pb, footer_partition_offset);
820 put_flush_packet(pb);
824 static int mux_write_footer(AVFormatContext *s)
826 ByteIOContext *pb = s->pb;
827 int64_t byte_position= url_ftell(pb);
829 if (!url_is_streamed(s->pb)) {
830 mxf_write_partition(s, byte_position, 0, footer_partition_key);
831 put_flush_packet(pb);
832 mxf_update_header_partition(s, byte_position);
838 AVOutputFormat mxf_muxer = {
840 NULL_IF_CONFIG_SMALL("Material eXchange Format"),