h264/aarch64: optimize neon loop filter
[libav.git] / libavformat / mxfdec.c
CommitLineData
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1/*
2 * MXF demuxer.
406792e7 3 * Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
d09ea6ba 4 *
2912e87a 5 * This file is part of Libav.
d09ea6ba 6 *
2912e87a 7 * Libav is free software; you can redistribute it and/or
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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.
11 *
2912e87a 12 * Libav is distributed in the hope that it will be useful,
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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.
16 *
17 * You should have received a copy of the GNU Lesser General Public
2912e87a 18 * License along with Libav; if not, write to the Free Software
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19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/*
23 * References
24 * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
25 * SMPTE 377M MXF File Format Specifications
26 * SMPTE 378M Operational Pattern 1a
27 * SMPTE 379M MXF Generic Container
28 * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
29 * SMPTE 382M Mapping AES3 and Broadcast Wave Audio into the MXF Generic Container
30 * SMPTE 383M Mapping DV-DIF Data to the MXF Generic Container
31 *
32 * Principle
33 * Search for Track numbers which will identify essence element KLV packets.
34 * Search for SourcePackage which define tracks which contains Track numbers.
35 * Material Package contains tracks with reference to SourcePackage tracks.
36 * Search for Descriptors (Picture, Sound) which contains codec info and parameters.
37 * Assign Descriptors to correct Tracks.
38 *
39 * Metadata reading functions read Local Tags, get InstanceUID(0x3C0A) then add MetaDataSet to MXFContext.
40 * Metadata parsing resolves Strong References to objects.
41 *
42 * Simple demuxer, only OP1A supported and some files might not work at all.
43 * Only tracks with associated descriptors will be decoded. "Highly Desirable" SMPTE 377M D.1
44 */
45
d92024f1 46#include <inttypes.h>
8f8bc923 47
d09ea6ba 48#include "libavutil/aes.h"
0ebcdf5c 49#include "libavutil/mathematics.h"
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50#include "libavcodec/bytestream.h"
51#include "avformat.h"
a2faa951 52#include "internal.h"
c69968b4 53#include "mxf.h"
d09ea6ba 54
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55typedef enum {
56 Header,
57 BodyPartition,
58 Footer
59} MXFPartitionType;
60
61typedef enum {
240ddbce 62 OP1a = 1,
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63 OP1b,
64 OP1c,
65 OP2a,
66 OP2b,
67 OP2c,
68 OP3a,
69 OP3b,
70 OP3c,
71 OPAtom,
21cc4b33 72 OPSonyOpt, /* FATE sample, violates the spec in places */
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73} MXFOP;
74
daf8cf35 75typedef struct MXFPartition {
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76 int closed;
77 int complete;
78 MXFPartitionType type;
79 uint64_t previous_partition;
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80 int index_sid;
81 int body_sid;
be78e3f6 82 int64_t this_partition;
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83 int64_t essence_offset; ///< absolute offset of essence
84 int64_t essence_length;
85 int32_t kag_size;
86 int64_t header_byte_count;
87 int64_t index_byte_count;
88 int pack_length;
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89} MXFPartition;
90
daf8cf35 91typedef struct MXFCryptoContext {
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92 UID uid;
93 enum MXFMetadataSetType type;
94 UID source_container_ul;
95} MXFCryptoContext;
96
daf8cf35 97typedef struct MXFStructuralComponent {
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98 UID uid;
99 enum MXFMetadataSetType type;
100 UID source_package_uid;
101 UID data_definition_ul;
102 int64_t duration;
103 int64_t start_position;
104 int source_track_id;
105} MXFStructuralComponent;
106
daf8cf35 107typedef struct MXFSequence {
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108 UID uid;
109 enum MXFMetadataSetType type;
110 UID data_definition_ul;
111 UID *structural_components_refs;
112 int structural_components_count;
113 int64_t duration;
259fe728 114 uint8_t origin;
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115} MXFSequence;
116
daf8cf35 117typedef struct MXFTrack {
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118 UID uid;
119 enum MXFMetadataSetType type;
120 MXFSequence *sequence; /* mandatory, and only one */
121 UID sequence_ref;
122 int track_id;
123 uint8_t track_number[4];
124 AVRational edit_rate;
5ed032fb 125 int intra_only;
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126 uint64_t sample_count;
127 int64_t original_duration; /* st->duration in SampleRate/EditRate units */
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128} MXFTrack;
129
daf8cf35 130typedef struct MXFDescriptor {
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131 UID uid;
132 enum MXFMetadataSetType type;
133 UID essence_container_ul;
134 UID essence_codec_ul;
135 AVRational sample_rate;
136 AVRational aspect_ratio;
137 int width;
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138 int height; /* Field height, not frame height */
139 int frame_layout; /* See MXFFrameLayout enum */
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140#define MXF_TFF 1
141#define MXF_BFF 2
142 int field_dominance;
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143 int channels;
144 int bits_per_sample;
fda891e1
PN
145 unsigned int component_depth;
146 unsigned int horiz_subsampling;
147 unsigned int vert_subsampling;
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148 UID *sub_descriptors_refs;
149 int sub_descriptors_count;
150 int linked_track_id;
151 uint8_t *extradata;
152 int extradata_size;
716d413c 153 enum AVPixelFormat pix_fmt;
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154} MXFDescriptor;
155
daf8cf35 156typedef struct MXFIndexTableSegment {
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157 UID uid;
158 enum MXFMetadataSetType type;
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JG
159 int edit_unit_byte_count;
160 int index_sid;
161 int body_sid;
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162 AVRational index_edit_rate;
163 uint64_t index_start_position;
164 uint64_t index_duration;
21cc4b33 165 int8_t *temporal_offset_entries;
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JG
166 int *flag_entries;
167 uint64_t *stream_offset_entries;
682b6db7 168 int nb_index_entries;
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169} MXFIndexTableSegment;
170
daf8cf35 171typedef struct MXFPackage {
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172 UID uid;
173 enum MXFMetadataSetType type;
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174 UID package_uid;
175 UID *tracks_refs;
176 int tracks_count;
177 MXFDescriptor *descriptor; /* only one */
178 UID descriptor_ref;
179} MXFPackage;
180
daf8cf35 181typedef struct MXFMetadataSet {
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182 UID uid;
183 enum MXFMetadataSetType type;
184} MXFMetadataSet;
185
f028d4d1 186/* decoded index table */
daf8cf35 187typedef struct MXFIndexTable {
f028d4d1
JG
188 int index_sid;
189 int body_sid;
190 int nb_ptses; /* number of PTSes or total duration of index */
191 int64_t first_dts; /* DTS = EditUnit + first_dts */
192 int64_t *ptses; /* maps EditUnit -> PTS */
193 int nb_segments;
194 MXFIndexTableSegment **segments; /* sorted by IndexStartPosition */
195 AVIndexEntry *fake_index; /* used for calling ff_index_search_timestamp() */
196} MXFIndexTable;
197
daf8cf35 198typedef struct MXFContext {
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199 MXFPartition *partitions;
200 unsigned partitions_count;
201 MXFOP op;
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202 UID *packages_refs;
203 int packages_count;
204 MXFMetadataSet **metadata_sets;
205 int metadata_sets_count;
206 AVFormatContext *fc;
207 struct AVAES *aesc;
208 uint8_t *local_tags;
209 int local_tags_count;
f06f6daa 210 uint64_t last_partition;
83ab10f6 211 uint64_t footer_partition;
682b6db7
JG
212 KLVPacket current_klv_data;
213 int current_klv_index;
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TH
214 int run_in;
215 MXFPartition *current_partition;
216 int parsing_backward;
217 int64_t last_forward_tell;
c77a5460 218 int last_forward_partition;
f028d4d1
JG
219 int current_edit_unit;
220 int nb_index_tables;
221 MXFIndexTable *index_tables;
c65642d3 222 int edit_units_per_packet; ///< how many edit units to read at a time (PCM, OPAtom)
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223} MXFContext;
224
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225enum MXFWrappingScheme {
226 Frame,
227 Clip,
228};
229
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TH
230/* NOTE: klv_offset is not set (-1) for local keys */
231typedef int MXFMetadataReadFunc(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset);
39bb30f6 232
daf8cf35 233typedef struct MXFMetadataReadTableEntry {
d09ea6ba 234 const UID key;
39bb30f6 235 MXFMetadataReadFunc *read;
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236 int ctx_size;
237 enum MXFMetadataSetType type;
238} MXFMetadataReadTableEntry;
239
240/* partial keys to match */
241static const uint8_t mxf_header_partition_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 };
242static const uint8_t mxf_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 };
1f5f8b26 243static const uint8_t mxf_avid_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0e,0x04,0x03,0x01 };
af9481d7 244static const uint8_t mxf_system_item_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x03,0x01,0x04 };
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245static const uint8_t mxf_klv_key[] = { 0x06,0x0e,0x2b,0x34 };
246/* complete keys to match */
247static const uint8_t mxf_crypto_source_container_ul[] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x02,0x02,0x00,0x00,0x00 };
248static const uint8_t mxf_encrypted_triplet_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x04,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x7e,0x01,0x00 };
249static const uint8_t mxf_encrypted_essence_container[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0b,0x01,0x00 };
af9481d7 250static const uint8_t mxf_random_index_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
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251static const uint8_t mxf_sony_mpeg4_extradata[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0e,0x06,0x06,0x02,0x02,0x01,0x00,0x00 };
252
253#define IS_KLV_KEY(x, y) (!memcmp(x, y, sizeof(y)))
254
ae628ec1 255static int64_t klv_decode_ber_length(AVIOContext *pb)
d09ea6ba 256{
b7effd4e 257 uint64_t size = avio_r8(pb);
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258 if (size & 0x80) { /* long form */
259 int bytes_num = size & 0x7f;
260 /* SMPTE 379M 5.3.4 guarantee that bytes_num must not exceed 8 bytes */
261 if (bytes_num > 8)
bcd5d979 262 return AVERROR_INVALIDDATA;
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263 size = 0;
264 while (bytes_num--)
b7effd4e 265 size = size << 8 | avio_r8(pb);
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266 }
267 return size;
268}
269
ae628ec1 270static int mxf_read_sync(AVIOContext *pb, const uint8_t *key, unsigned size)
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271{
272 int i, b;
66e5b1df 273 for (i = 0; i < size && !pb->eof_reached; i++) {
b7effd4e 274 b = avio_r8(pb);
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275 if (b == key[0])
276 i = 0;
277 else if (b != key[i])
278 i = -1;
279 }
280 return i == size;
281}
282
ae628ec1 283static int klv_read_packet(KLVPacket *klv, AVIOContext *pb)
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284{
285 if (!mxf_read_sync(pb, mxf_klv_key, 4))
bcd5d979 286 return AVERROR_INVALIDDATA;
a2704c97 287 klv->offset = avio_tell(pb) - 4;
d09ea6ba 288 memcpy(klv->key, mxf_klv_key, 4);
b7effd4e 289 avio_read(pb, klv->key + 4, 12);
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290 klv->length = klv_decode_ber_length(pb);
291 return klv->length == -1 ? -1 : 0;
292}
293
294static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv)
295{
296 int i;
297
298 for (i = 0; i < s->nb_streams; i++) {
299 MXFTrack *track = s->streams[i]->priv_data;
300 /* SMPTE 379M 7.3 */
301 if (!memcmp(klv->key + sizeof(mxf_essence_element_key), track->track_number, sizeof(track->track_number)))
302 return i;
303 }
304 /* return 0 if only one stream, for OP Atom files with 0 as track number */
305 return s->nb_streams == 1 ? 0 : -1;
306}
307
308/* XXX: use AVBitStreamFilter */
ae628ec1 309static int mxf_get_d10_aes3_packet(AVIOContext *pb, AVStream *st, AVPacket *pkt, int64_t length)
d09ea6ba 310{
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311 const uint8_t *buf_ptr, *end_ptr;
312 uint8_t *data_ptr;
313 int i;
314
315 if (length > 61444) /* worst case PAL 1920 samples 8 channels */
bcd5d979 316 return AVERROR_INVALIDDATA;
0c46e958
AC
317 length = av_get_packet(pb, pkt, length);
318 if (length < 0)
319 return length;
d09ea6ba 320 data_ptr = pkt->data;
c7a38887
RD
321 end_ptr = pkt->data + length;
322 buf_ptr = pkt->data + 4; /* skip SMPTE 331M header */
9200514a
AK
323 for (; end_ptr - buf_ptr >= st->codecpar->channels * 4; ) {
324 for (i = 0; i < st->codecpar->channels; i++) {
d09ea6ba 325 uint32_t sample = bytestream_get_le32(&buf_ptr);
9200514a 326 if (st->codecpar->bits_per_coded_sample == 24)
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327 bytestream_put_le24(&data_ptr, (sample >> 4) & 0xffffff);
328 else
329 bytestream_put_le16(&data_ptr, (sample >> 12) & 0xffff);
330 }
9200514a 331 buf_ptr += 32 - st->codecpar->channels*4; // always 8 channels stored SMPTE 331M
d09ea6ba 332 }
0c46e958 333 av_shrink_packet(pkt, data_ptr - pkt->data);
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334 return 0;
335}
336
337static int mxf_decrypt_triplet(AVFormatContext *s, AVPacket *pkt, KLVPacket *klv)
338{
339 static const uint8_t checkv[16] = {0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b};
340 MXFContext *mxf = s->priv_data;
ae628ec1 341 AVIOContext *pb = s->pb;
a2704c97 342 int64_t end = avio_tell(pb) + klv->length;
735e601b 343 int64_t size;
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344 uint64_t orig_size;
345 uint64_t plaintext_size;
346 uint8_t ivec[16];
347 uint8_t tmpbuf[16];
348 int index;
349
350 if (!mxf->aesc && s->key && s->keylen == 16) {
e002e329 351 mxf->aesc = av_aes_alloc();
d09ea6ba 352 if (!mxf->aesc)
bcd5d979 353 return AVERROR(ENOMEM);
d09ea6ba
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354 av_aes_init(mxf->aesc, s->key, 128, 1);
355 }
356 // crypto context
45a8a02a 357 avio_skip(pb, klv_decode_ber_length(pb));
d09ea6ba
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358 // plaintext offset
359 klv_decode_ber_length(pb);
b7effd4e 360 plaintext_size = avio_rb64(pb);
d09ea6ba
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361 // source klv key
362 klv_decode_ber_length(pb);
b7effd4e 363 avio_read(pb, klv->key, 16);
d09ea6ba 364 if (!IS_KLV_KEY(klv, mxf_essence_element_key))
bcd5d979 365 return AVERROR_INVALIDDATA;
d09ea6ba
BC
366 index = mxf_get_stream_index(s, klv);
367 if (index < 0)
bcd5d979 368 return AVERROR_INVALIDDATA;
d09ea6ba
BC
369 // source size
370 klv_decode_ber_length(pb);
b7effd4e 371 orig_size = avio_rb64(pb);
d09ea6ba 372 if (orig_size < plaintext_size)
bcd5d979 373 return AVERROR_INVALIDDATA;
d09ea6ba
BC
374 // enc. code
375 size = klv_decode_ber_length(pb);
376 if (size < 32 || size - 32 < orig_size)
bcd5d979 377 return AVERROR_INVALIDDATA;
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AK
378 avio_read(pb, ivec, 16);
379 avio_read(pb, tmpbuf, 16);
d09ea6ba
BC
380 if (mxf->aesc)
381 av_aes_crypt(mxf->aesc, tmpbuf, tmpbuf, 1, ivec, 1);
382 if (memcmp(tmpbuf, checkv, 16))
383 av_log(s, AV_LOG_ERROR, "probably incorrect decryption key\n");
384 size -= 32;
0c46e958
AC
385 size = av_get_packet(pb, pkt, size);
386 if (size < 0)
387 return size;
388 else if (size < plaintext_size)
389 return AVERROR_INVALIDDATA;
d09ea6ba
BC
390 size -= plaintext_size;
391 if (mxf->aesc)
392 av_aes_crypt(mxf->aesc, &pkt->data[plaintext_size],
393 &pkt->data[plaintext_size], size >> 4, ivec, 1);
0c46e958 394 av_shrink_packet(pkt, orig_size);
d09ea6ba 395 pkt->stream_index = index;
45a8a02a 396 avio_skip(pb, end - avio_tell(pb));
d09ea6ba
BC
397 return 0;
398}
399
21cc4b33 400static int mxf_read_primer_pack(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 401{
39bb30f6 402 MXFContext *mxf = arg;
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AK
403 int item_num = avio_rb32(pb);
404 int item_len = avio_rb32(pb);
d09ea6ba
BC
405
406 if (item_len != 18) {
1ecdf891 407 avpriv_request_sample(pb, "Primer pack item length %d", item_len);
bcd5d979 408 return AVERROR_PATCHWELCOME;
d09ea6ba
BC
409 }
410 if (item_num > UINT_MAX / item_len)
bcd5d979 411 return AVERROR_INVALIDDATA;
d09ea6ba
BC
412 mxf->local_tags_count = item_num;
413 mxf->local_tags = av_malloc(item_num*item_len);
414 if (!mxf->local_tags)
bcd5d979 415 return AVERROR(ENOMEM);
b7effd4e 416 avio_read(pb, mxf->local_tags, item_num*item_len);
d09ea6ba
BC
417 return 0;
418}
419
21cc4b33 420static int mxf_read_partition_pack(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d32b3f40
TH
421{
422 MXFContext *mxf = arg;
f369b935 423 MXFPartition *partition;
d32b3f40 424 UID op;
83ab10f6 425 uint64_t footer_partition;
240ddbce 426 uint32_t nb_essence_containers;
f369b935 427 int err;
d32b3f40 428
f369b935
AK
429 if ((err = av_reallocp_array(&mxf->partitions, mxf->partitions_count + 1,
430 sizeof(*mxf->partitions))) < 0) {
431 mxf->partitions_count = 0;
432 return err;
433 }
d32b3f40 434
c77a5460
TH
435 if (mxf->parsing_backward) {
436 /* insert the new partition pack in the middle
437 * this makes the entries in mxf->partitions sorted by offset */
438 memmove(&mxf->partitions[mxf->last_forward_partition+1],
439 &mxf->partitions[mxf->last_forward_partition],
440 (mxf->partitions_count - mxf->last_forward_partition)*sizeof(*mxf->partitions));
441 partition = mxf->current_partition = &mxf->partitions[mxf->last_forward_partition];
442 } else {
443 mxf->last_forward_partition++;
444 partition = mxf->current_partition = &mxf->partitions[mxf->partitions_count];
445 }
446
447 memset(partition, 0, sizeof(*partition));
448 mxf->partitions_count++;
21cc4b33 449 partition->pack_length = avio_tell(pb) - klv_offset + size;
d32b3f40
TH
450
451 switch(uid[13]) {
452 case 2:
453 partition->type = Header;
454 break;
455 case 3:
456 partition->type = BodyPartition;
457 break;
458 case 4:
459 partition->type = Footer;
460 break;
461 default:
462 av_log(mxf->fc, AV_LOG_ERROR, "unknown partition type %i\n", uid[13]);
463 return AVERROR_INVALIDDATA;
464 }
465
466 /* consider both footers to be closed (there is only Footer and CompleteFooter) */
467 partition->closed = partition->type == Footer || !(uid[14] & 1);
468 partition->complete = uid[14] > 2;
21cc4b33
TH
469 avio_skip(pb, 4);
470 partition->kag_size = avio_rb32(pb);
be78e3f6 471 partition->this_partition = avio_rb64(pb);
d32b3f40 472 partition->previous_partition = avio_rb64(pb);
83ab10f6 473 footer_partition = avio_rb64(pb);
21cc4b33
TH
474 partition->header_byte_count = avio_rb64(pb);
475 partition->index_byte_count = avio_rb64(pb);
d32b3f40
TH
476 partition->index_sid = avio_rb32(pb);
477 avio_skip(pb, 8);
478 partition->body_sid = avio_rb32(pb);
479 avio_read(pb, op, sizeof(UID));
240ddbce 480 nb_essence_containers = avio_rb32(pb);
d32b3f40 481
842ea36c
LB
482 if (partition->this_partition &&
483 partition->previous_partition == partition->this_partition) {
484 av_log(mxf->fc, AV_LOG_ERROR,
485 "PreviousPartition equal to ThisPartition %"PRIx64"\n",
486 partition->previous_partition);
487 /* override with the actual previous partition offset */
488 if (!mxf->parsing_backward && mxf->last_forward_partition > 1) {
489 MXFPartition *prev =
490 mxf->partitions + mxf->last_forward_partition - 2;
491 partition->previous_partition = prev->this_partition;
492 }
493 /* if no previous body partition are found point to the header
494 * partition */
ad8f736b 495 if (partition->previous_partition == partition->this_partition)
842ea36c
LB
496 partition->previous_partition = 0;
497 av_log(mxf->fc, AV_LOG_ERROR,
498 "Overriding PreviousPartition with %"PRIx64"\n",
499 partition->previous_partition);
500 }
501
41ed7ab4 502 /* some files don't have FooterPartition set in every partition */
83ab10f6
TH
503 if (footer_partition) {
504 if (mxf->footer_partition && mxf->footer_partition != footer_partition) {
4fbd3e89
JF
505 av_log(mxf->fc, AV_LOG_ERROR,
506 "inconsistent FooterPartition value: %"PRIu64" != %"PRIu64"\n",
83ab10f6
TH
507 mxf->footer_partition, footer_partition);
508 } else {
509 mxf->footer_partition = footer_partition;
510 }
511 }
512
1a3eb042 513 av_log(mxf->fc, AV_LOG_TRACE,
4fbd3e89
JF
514 "PartitionPack: ThisPartition = 0x%"PRIX64
515 ", PreviousPartition = 0x%"PRIX64", "
516 "FooterPartition = 0x%"PRIX64", IndexSID = %i, BodySID = %i\n",
be78e3f6 517 partition->this_partition,
83ab10f6 518 partition->previous_partition, footer_partition,
d32b3f40
TH
519 partition->index_sid, partition->body_sid);
520
df2a8508
TH
521 /* sanity check PreviousPartition if set */
522 if (partition->previous_partition &&
523 mxf->run_in + partition->previous_partition >= klv_offset) {
524 av_log(mxf->fc, AV_LOG_ERROR,
525 "PreviousPartition points to this partition or forward\n");
526 return AVERROR_INVALIDDATA;
527 }
528
d32b3f40
TH
529 if (op[12] == 1 && op[13] == 1) mxf->op = OP1a;
530 else if (op[12] == 1 && op[13] == 2) mxf->op = OP1b;
531 else if (op[12] == 1 && op[13] == 3) mxf->op = OP1c;
532 else if (op[12] == 2 && op[13] == 1) mxf->op = OP2a;
533 else if (op[12] == 2 && op[13] == 2) mxf->op = OP2b;
534 else if (op[12] == 2 && op[13] == 3) mxf->op = OP2c;
535 else if (op[12] == 3 && op[13] == 1) mxf->op = OP3a;
536 else if (op[12] == 3 && op[13] == 2) mxf->op = OP3b;
537 else if (op[12] == 3 && op[13] == 3) mxf->op = OP3c;
21cc4b33 538 else if (op[12] == 64&& op[13] == 1) mxf->op = OPSonyOpt;
240ddbce
TH
539 else if (op[12] == 0x10) {
540 /* SMPTE 390m: "There shall be exactly one essence container"
fb8fa3c6
TH
541 * The following block deals with files that violate this, namely:
542 * 2011_DCPTEST_24FPS.V.mxf - two ECs, OP1a
543 * abcdefghiv016f56415e.mxf - zero ECs, OPAtom, output by Avid AirSpeed */
240ddbce 544 if (nb_essence_containers != 1) {
fb8fa3c6
TH
545 MXFOP op = nb_essence_containers ? OP1a : OPAtom;
546
240ddbce
TH
547 /* only nag once */
548 if (!mxf->op)
549 av_log(mxf->fc, AV_LOG_WARNING,
d92024f1 550 "\"OPAtom\" with %"PRIu32" ECs - assuming %s\n",
fb8fa3c6
TH
551 nb_essence_containers,
552 op == OP1a ? "OP1a" : "OPAtom");
240ddbce 553
fb8fa3c6 554 mxf->op = op;
240ddbce
TH
555 } else
556 mxf->op = OPAtom;
557 } else {
21cc4b33
TH
558 av_log(mxf->fc, AV_LOG_ERROR, "unknown operational pattern: %02xh %02xh - guessing OP1a\n", op[12], op[13]);
559 mxf->op = OP1a;
560 }
561
562 if (partition->kag_size <= 0 || partition->kag_size > (1 << 20)) {
d92024f1
DB
563 av_log(mxf->fc, AV_LOG_WARNING, "invalid KAGSize %"PRId32" - guessing ",
564 partition->kag_size);
21cc4b33
TH
565
566 if (mxf->op == OPSonyOpt)
567 partition->kag_size = 512;
568 else
569 partition->kag_size = 1;
570
d92024f1 571 av_log(mxf->fc, AV_LOG_WARNING, "%"PRId32"\n", partition->kag_size);
21cc4b33 572 }
d32b3f40
TH
573
574 return 0;
575}
576
d09ea6ba
BC
577static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set)
578{
f369b935
AK
579 int err;
580
f369b935
AK
581 if ((err = av_reallocp_array(&mxf->metadata_sets, mxf->metadata_sets_count + 1,
582 sizeof(*mxf->metadata_sets))) < 0) {
583 mxf->metadata_sets_count = 0;
584 return err;
585 }
d09ea6ba
BC
586 mxf->metadata_sets[mxf->metadata_sets_count] = metadata_set;
587 mxf->metadata_sets_count++;
588 return 0;
589}
590
21cc4b33 591static int mxf_read_cryptographic_context(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 592{
39bb30f6 593 MXFCryptoContext *cryptocontext = arg;
d09ea6ba 594 if (size != 16)
bcd5d979 595 return AVERROR_INVALIDDATA;
d09ea6ba 596 if (IS_KLV_KEY(uid, mxf_crypto_source_container_ul))
b7effd4e 597 avio_read(pb, cryptocontext->source_container_ul, 16);
d09ea6ba
BC
598 return 0;
599}
600
21cc4b33 601static int mxf_read_content_storage(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 602{
39bb30f6 603 MXFContext *mxf = arg;
d09ea6ba
BC
604 switch (tag) {
605 case 0x1901:
b7effd4e 606 mxf->packages_count = avio_rb32(pb);
d09ea6ba 607 if (mxf->packages_count >= UINT_MAX / sizeof(UID))
bcd5d979 608 return AVERROR_INVALIDDATA;
d09ea6ba
BC
609 mxf->packages_refs = av_malloc(mxf->packages_count * sizeof(UID));
610 if (!mxf->packages_refs)
bcd5d979 611 return AVERROR(ENOMEM);
45a8a02a 612 avio_skip(pb, 4); /* useless size of objects, always 16 according to specs */
b7effd4e 613 avio_read(pb, (uint8_t *)mxf->packages_refs, mxf->packages_count * sizeof(UID));
d09ea6ba
BC
614 break;
615 }
616 return 0;
617}
618
21cc4b33 619static int mxf_read_source_clip(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 620{
39bb30f6 621 MXFStructuralComponent *source_clip = arg;
d09ea6ba
BC
622 switch(tag) {
623 case 0x0202:
b7effd4e 624 source_clip->duration = avio_rb64(pb);
d09ea6ba
BC
625 break;
626 case 0x1201:
b7effd4e 627 source_clip->start_position = avio_rb64(pb);
d09ea6ba
BC
628 break;
629 case 0x1101:
630 /* UMID, only get last 16 bytes */
45a8a02a 631 avio_skip(pb, 16);
b7effd4e 632 avio_read(pb, source_clip->source_package_uid, 16);
d09ea6ba
BC
633 break;
634 case 0x1102:
b7effd4e 635 source_clip->source_track_id = avio_rb32(pb);
d09ea6ba
BC
636 break;
637 }
638 return 0;
639}
640
21cc4b33 641static int mxf_read_material_package(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 642{
39bb30f6 643 MXFPackage *package = arg;
d09ea6ba
BC
644 switch(tag) {
645 case 0x4403:
b7effd4e 646 package->tracks_count = avio_rb32(pb);
d09ea6ba 647 if (package->tracks_count >= UINT_MAX / sizeof(UID))
bcd5d979 648 return AVERROR_INVALIDDATA;
d09ea6ba
BC
649 package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID));
650 if (!package->tracks_refs)
bcd5d979 651 return AVERROR(ENOMEM);
45a8a02a 652 avio_skip(pb, 4); /* useless size of objects, always 16 according to specs */
b7effd4e 653 avio_read(pb, (uint8_t *)package->tracks_refs, package->tracks_count * sizeof(UID));
d09ea6ba
BC
654 break;
655 }
656 return 0;
657}
658
21cc4b33 659static int mxf_read_track(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 660{
39bb30f6 661 MXFTrack *track = arg;
d09ea6ba
BC
662 switch(tag) {
663 case 0x4801:
b7effd4e 664 track->track_id = avio_rb32(pb);
d09ea6ba
BC
665 break;
666 case 0x4804:
b7effd4e 667 avio_read(pb, track->track_number, 4);
d09ea6ba 668 break;
af9481d7 669 case 0x4b01:
b7effd4e 670 track->edit_rate.num = avio_rb32(pb);
5255ca24 671 track->edit_rate.den = avio_rb32(pb);
d09ea6ba
BC
672 break;
673 case 0x4803:
b7effd4e 674 avio_read(pb, track->sequence_ref, 16);
d09ea6ba
BC
675 break;
676 }
677 return 0;
678}
679
21cc4b33 680static int mxf_read_sequence(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 681{
39bb30f6 682 MXFSequence *sequence = arg;
d09ea6ba
BC
683 switch(tag) {
684 case 0x0202:
b7effd4e 685 sequence->duration = avio_rb64(pb);
d09ea6ba
BC
686 break;
687 case 0x0201:
b7effd4e 688 avio_read(pb, sequence->data_definition_ul, 16);
d09ea6ba 689 break;
259fe728
MAA
690 case 0x4b02:
691 sequence->origin = avio_r8(pb);
692 break;
d09ea6ba 693 case 0x1001:
b7effd4e 694 sequence->structural_components_count = avio_rb32(pb);
d09ea6ba 695 if (sequence->structural_components_count >= UINT_MAX / sizeof(UID))
bcd5d979 696 return AVERROR_INVALIDDATA;
d09ea6ba
BC
697 sequence->structural_components_refs = av_malloc(sequence->structural_components_count * sizeof(UID));
698 if (!sequence->structural_components_refs)
bcd5d979 699 return AVERROR(ENOMEM);
45a8a02a 700 avio_skip(pb, 4); /* useless size of objects, always 16 according to specs */
b7effd4e 701 avio_read(pb, (uint8_t *)sequence->structural_components_refs, sequence->structural_components_count * sizeof(UID));
d09ea6ba
BC
702 break;
703 }
704 return 0;
705}
706
21cc4b33 707static int mxf_read_source_package(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 708{
39bb30f6 709 MXFPackage *package = arg;
d09ea6ba
BC
710 switch(tag) {
711 case 0x4403:
b7effd4e 712 package->tracks_count = avio_rb32(pb);
d09ea6ba 713 if (package->tracks_count >= UINT_MAX / sizeof(UID))
bcd5d979 714 return AVERROR_INVALIDDATA;
d09ea6ba
BC
715 package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID));
716 if (!package->tracks_refs)
bcd5d979 717 return AVERROR(ENOMEM);
45a8a02a 718 avio_skip(pb, 4); /* useless size of objects, always 16 according to specs */
b7effd4e 719 avio_read(pb, (uint8_t *)package->tracks_refs, package->tracks_count * sizeof(UID));
d09ea6ba
BC
720 break;
721 case 0x4401:
722 /* UMID, only get last 16 bytes */
45a8a02a 723 avio_skip(pb, 16);
b7effd4e 724 avio_read(pb, package->package_uid, 16);
d09ea6ba
BC
725 break;
726 case 0x4701:
b7effd4e 727 avio_read(pb, package->descriptor_ref, 16);
d09ea6ba
BC
728 break;
729 }
730 return 0;
731}
732
682b6db7
JG
733static int mxf_read_index_entry_array(AVIOContext *pb, MXFIndexTableSegment *segment)
734{
fc857294 735 int i, length;
682b6db7
JG
736
737 segment->nb_index_entries = avio_rb32(pb);
738 if (!segment->nb_index_entries)
739 return 0;
740 else if (segment->nb_index_entries < 0 ||
741 segment->nb_index_entries >
fdaad635 742 (INT_MAX / sizeof(*segment->stream_offset_entries)))
682b6db7
JG
743 return AVERROR(ENOMEM);
744
745 length = avio_rb32(pb);
746
21cc4b33
TH
747 segment->temporal_offset_entries = av_mallocz(segment->nb_index_entries *
748 sizeof(*segment->temporal_offset_entries));
749 segment->flag_entries = av_mallocz(segment->nb_index_entries *
750 sizeof(*segment->flag_entries));
751 segment->stream_offset_entries = av_mallocz(segment->nb_index_entries *
752 sizeof(*segment->stream_offset_entries));
21cc4b33 753
fc857294
TH
754 if (!segment->flag_entries || !segment->stream_offset_entries ||
755 !segment->temporal_offset_entries) {
756 av_freep(&segment->flag_entries);
757 av_freep(&segment->stream_offset_entries);
758 av_freep(&segment->temporal_offset_entries);
759 return AVERROR(ENOMEM);
760 }
682b6db7
JG
761
762 for (i = 0; i < segment->nb_index_entries; i++) {
21cc4b33
TH
763 segment->temporal_offset_entries[i] = avio_r8(pb);
764 avio_r8(pb); /* KeyFrameOffset */
682b6db7
JG
765 segment->flag_entries[i] = avio_r8(pb);
766 segment->stream_offset_entries[i] = avio_rb64(pb);
fc857294 767 avio_skip(pb, length - 11);
682b6db7
JG
768 }
769 return 0;
682b6db7
JG
770}
771
21cc4b33 772static int mxf_read_index_table_segment(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
861b4f01 773{
682b6db7 774 MXFIndexTableSegment *segment = arg;
861b4f01 775 switch(tag) {
682b6db7
JG
776 case 0x3F05:
777 segment->edit_unit_byte_count = avio_rb32(pb);
1a3eb042 778 av_log(NULL, AV_LOG_TRACE, "EditUnitByteCount %d\n", segment->edit_unit_byte_count);
682b6db7
JG
779 break;
780 case 0x3F06:
781 segment->index_sid = avio_rb32(pb);
1a3eb042 782 av_log(NULL, AV_LOG_TRACE, "IndexSID %d\n", segment->index_sid);
682b6db7
JG
783 break;
784 case 0x3F07:
785 segment->body_sid = avio_rb32(pb);
1a3eb042 786 av_log(NULL, AV_LOG_TRACE, "BodySID %d\n", segment->body_sid);
682b6db7 787 break;
682b6db7 788 case 0x3F0A:
1a3eb042 789 av_log(NULL, AV_LOG_TRACE, "IndexEntryArray found\n");
682b6db7
JG
790 return mxf_read_index_entry_array(pb, segment);
791 case 0x3F0B:
792 segment->index_edit_rate.num = avio_rb32(pb);
793 segment->index_edit_rate.den = avio_rb32(pb);
1a3eb042 794 av_log(NULL, AV_LOG_TRACE, "IndexEditRate %d/%d\n", segment->index_edit_rate.num,
682b6db7
JG
795 segment->index_edit_rate.den);
796 break;
797 case 0x3F0C:
798 segment->index_start_position = avio_rb64(pb);
1a3eb042 799 av_log(NULL, AV_LOG_TRACE, "IndexStartPosition %"PRId64"\n", segment->index_start_position);
682b6db7
JG
800 break;
801 case 0x3F0D:
802 segment->index_duration = avio_rb64(pb);
1a3eb042 803 av_log(NULL, AV_LOG_TRACE, "IndexDuration %"PRId64"\n", segment->index_duration);
682b6db7 804 break;
861b4f01
BC
805 }
806 return 0;
807}
808
ae628ec1 809static void mxf_read_pixel_layout(AVIOContext *pb, MXFDescriptor *descriptor)
d09ea6ba 810{
11fdc4d4 811 int code, value, ofs = 0;
354b7573 812 char layout[16] = {0};
d09ea6ba
BC
813
814 do {
b7effd4e
AK
815 code = avio_r8(pb);
816 value = avio_r8(pb);
1a3eb042 817 av_log(NULL, AV_LOG_TRACE, "pixel layout: code %#x\n", code);
11fdc4d4 818
11467ecf 819 if (ofs <= 14) {
11fdc4d4
TH
820 layout[ofs++] = code;
821 layout[ofs++] = value;
d09ea6ba
BC
822 }
823 } while (code != 0); /* SMPTE 377M E.2.46 */
11fdc4d4
TH
824
825 ff_mxf_decode_pixel_layout(layout, &descriptor->pix_fmt);
d09ea6ba
BC
826}
827
21cc4b33 828static int mxf_read_generic_descriptor(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
d09ea6ba 829{
39bb30f6 830 MXFDescriptor *descriptor = arg;
716d413c 831 descriptor->pix_fmt = AV_PIX_FMT_NONE;
d09ea6ba
BC
832 switch(tag) {
833 case 0x3F01:
b7effd4e 834 descriptor->sub_descriptors_count = avio_rb32(pb);
d09ea6ba 835 if (descriptor->sub_descriptors_count >= UINT_MAX / sizeof(UID))
bcd5d979 836 return AVERROR_INVALIDDATA;
d09ea6ba
BC
837 descriptor->sub_descriptors_refs = av_malloc(descriptor->sub_descriptors_count * sizeof(UID));
838 if (!descriptor->sub_descriptors_refs)
bcd5d979 839 return AVERROR(ENOMEM);
45a8a02a 840 avio_skip(pb, 4); /* useless size of objects, always 16 according to specs */
b7effd4e 841 avio_read(pb, (uint8_t *)descriptor->sub_descriptors_refs, descriptor->sub_descriptors_count * sizeof(UID));
d09ea6ba
BC
842 break;
843 case 0x3004:
b7effd4e 844 avio_read(pb, descriptor->essence_container_ul, 16);
d09ea6ba
BC
845 break;
846 case 0x3006:
b7effd4e 847 descriptor->linked_track_id = avio_rb32(pb);
d09ea6ba
BC
848 break;
849 case 0x3201: /* PictureEssenceCoding */
b7effd4e 850 avio_read(pb, descriptor->essence_codec_ul, 16);
d09ea6ba
BC
851 break;
852 case 0x3203:
b7effd4e 853 descriptor->width = avio_rb32(pb);
d09ea6ba
BC
854 break;
855 case 0x3202:
b7effd4e 856 descriptor->height = avio_rb32(pb);
d09ea6ba 857 break;
634d6705
JA
858 case 0x320C:
859 descriptor->frame_layout = avio_r8(pb);
860 break;
d09ea6ba 861 case 0x320E:
b7effd4e
AK
862 descriptor->aspect_ratio.num = avio_rb32(pb);
863 descriptor->aspect_ratio.den = avio_rb32(pb);
d09ea6ba 864 break;
c7166248
MB
865 case 0x3212:
866 descriptor->field_dominance = avio_r8(pb);
867 break;
fda891e1
PN
868 case 0x3301:
869 descriptor->component_depth = avio_rb32(pb);
870 break;
871 case 0x3302:
872 descriptor->horiz_subsampling = avio_rb32(pb);
873 break;
874 case 0x3308:
875 descriptor->vert_subsampling = avio_rb32(pb);
876 break;
d09ea6ba 877 case 0x3D03:
b7effd4e
AK
878 descriptor->sample_rate.num = avio_rb32(pb);
879 descriptor->sample_rate.den = avio_rb32(pb);
d09ea6ba
BC
880 break;
881 case 0x3D06: /* SoundEssenceCompression */
b7effd4e 882 avio_read(pb, descriptor->essence_codec_ul, 16);
d09ea6ba
BC
883 break;
884 case 0x3D07:
b7effd4e 885 descriptor->channels = avio_rb32(pb);
d09ea6ba
BC
886 break;
887 case 0x3D01:
b7effd4e 888 descriptor->bits_per_sample = avio_rb32(pb);
d09ea6ba
BC
889 break;
890 case 0x3401:
891 mxf_read_pixel_layout(pb, descriptor);
892 break;
893 default:
894 /* Private uid used by SONY C0023S01.mxf */
895 if (IS_KLV_KEY(uid, mxf_sony_mpeg4_extradata)) {
0d6605c7
MN
896 av_free(descriptor->extradata);
897 descriptor->extradata_size = 0;
059a9348 898 descriptor->extradata = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
d09ea6ba 899 if (!descriptor->extradata)
bcd5d979 900 return AVERROR(ENOMEM);
d09ea6ba 901 descriptor->extradata_size = size;
b7effd4e 902 avio_read(pb, descriptor->extradata, size);
d09ea6ba
BC
903 }
904 break;
905 }
906 return 0;
907}
908
d09ea6ba
BC
909/*
910 * Match an uid independently of the version byte and up to len common bytes
911 * Returns: boolean
912 */
913static int mxf_match_uid(const UID key, const UID uid, int len)
914{
915 int i;
916 for (i = 0; i < len; i++) {
917 if (i != 7 && key[i] != uid[i])
918 return 0;
919 }
920 return 1;
921}
922
923static const MXFCodecUL *mxf_get_codec_ul(const MXFCodecUL *uls, UID *uid)
924{
5ac4d768 925 while (uls->uid[0]) {
d09ea6ba
BC
926 if(mxf_match_uid(uls->uid, *uid, uls->matching_len))
927 break;
928 uls++;
929 }
930 return uls;
931}
932
d09ea6ba
BC
933static void *mxf_resolve_strong_ref(MXFContext *mxf, UID *strong_ref, enum MXFMetadataSetType type)
934{
935 int i;
936
937 if (!strong_ref)
938 return NULL;
939 for (i = 0; i < mxf->metadata_sets_count; i++) {
940 if (!memcmp(*strong_ref, mxf->metadata_sets[i]->uid, 16) &&
941 (type == AnyType || mxf->metadata_sets[i]->type == type)) {
942 return mxf->metadata_sets[i];
943 }
944 }
945 return NULL;
946}
947
44deb9f6 948static const MXFCodecUL mxf_picture_essence_container_uls[] = {
4ee873e3 949 // video essence container uls
41ed7ab4 950 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x02,0x0d,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, 14, AV_CODEC_ID_MPEG2VIDEO }, /* MPEG-ES frame-wrapped */
af9481d7 951 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x02,0x41,0x01 }, 14, AV_CODEC_ID_DVVIDEO }, /* DV 625 25mbps */
41ed7ab4 952 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x05,0x00,0x00 }, 14, AV_CODEC_ID_RAWVIDEO }, /* uncompressed picture */
36ef5369 953 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, AV_CODEC_ID_NONE },
44deb9f6 954};
5ed032fb
TH
955
956/* EC ULs for intra-only formats */
957static const MXFCodecUL mxf_intra_only_essence_container_uls[] = {
41ed7ab4 958 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x01,0x00,0x00 }, 14, AV_CODEC_ID_MPEG2VIDEO }, /* MXF-GC SMPTE D-10 mappings */
36ef5369 959 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, AV_CODEC_ID_NONE },
5ed032fb
TH
960};
961
962/* intra-only PictureEssenceCoding ULs, where no corresponding EC UL exists */
963static const MXFCodecUL mxf_intra_only_picture_essence_coding_uls[] = {
af9481d7 964 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x01,0x32,0x00,0x00 }, 14, AV_CODEC_ID_H264 }, /* H.264/MPEG-4 AVC Intra Profiles */
41ed7ab4 965 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, 14, AV_CODEC_ID_JPEG2000 }, /* JPEG 2000 code stream */
36ef5369 966 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, AV_CODEC_ID_NONE },
5ed032fb
TH
967};
968
44deb9f6 969static const MXFCodecUL mxf_sound_essence_container_uls[] = {
4ee873e3 970 // sound essence container uls
af9481d7
LB
971 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, 14, AV_CODEC_ID_PCM_S16LE }, /* BWF Frame wrapped */
972 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x02,0x0d,0x01,0x03,0x01,0x02,0x04,0x40,0x01 }, 14, AV_CODEC_ID_MP2 }, /* MPEG-ES Frame wrapped, 0x40 ??? stream id */
973 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, 14, AV_CODEC_ID_PCM_S16LE }, /* D-10 Mapping 50Mbps PAL Extended Template */
974 { { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0xff,0x4b,0x46,0x41,0x41,0x00,0x0d,0x4d,0x4F }, 14, AV_CODEC_ID_PCM_S16LE }, /* 0001GL00.MXF.A1.mxf_opatom.mxf */
41ed7ab4 975 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x03,0x04,0x02,0x02,0x02,0x03,0x03,0x01,0x00 }, 14, AV_CODEC_ID_AAC }, /* MPEG-2 AAC ADTS (legacy) */
36ef5369 976 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, AV_CODEC_ID_NONE },
4ee873e3
BC
977};
978
c9d982aa
MAA
979static const MXFCodecUL mxf_data_essence_container_uls[] = {
980 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x09,0x0d,0x01,0x03,0x01,0x02,0x0e,0x00,0x00 }, 16, 0 },
981 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x09,0x0d,0x01,0x03,0x01,0x02,0x0e,0x00,0x00 }, 16, AV_CODEC_ID_NONE },
982};
983
fd9212f2 984static const char * const mxf_data_essence_descriptor[] = {
c9d982aa
MAA
985 "vbi_vanc_smpte_436M",
986};
987
682b6db7
JG
988static int mxf_get_sorted_table_segments(MXFContext *mxf, int *nb_sorted_segments, MXFIndexTableSegment ***sorted_segments)
989{
990 int i, j, nb_segments = 0;
991 MXFIndexTableSegment **unsorted_segments;
992 int last_body_sid = -1, last_index_sid = -1, last_index_start = -1;
993
994 /* count number of segments, allocate arrays and copy unsorted segments */
995 for (i = 0; i < mxf->metadata_sets_count; i++)
996 if (mxf->metadata_sets[i]->type == IndexTableSegment)
997 nb_segments++;
998
bd141f5e
JG
999 if (!nb_segments)
1000 return AVERROR_INVALIDDATA;
1001
682b6db7
JG
1002 *sorted_segments = av_mallocz(nb_segments * sizeof(**sorted_segments));
1003 unsorted_segments = av_mallocz(nb_segments * sizeof(*unsorted_segments));
3b81bba3 1004 if (!*sorted_segments || !unsorted_segments) {
682b6db7
JG
1005 av_freep(sorted_segments);
1006 av_free(unsorted_segments);
1007 return AVERROR(ENOMEM);
1008 }
1009
1010 for (i = j = 0; i < mxf->metadata_sets_count; i++)
1011 if (mxf->metadata_sets[i]->type == IndexTableSegment)
1012 unsorted_segments[j++] = (MXFIndexTableSegment*)mxf->metadata_sets[i];
1013
1014 *nb_sorted_segments = 0;
1015
1016 /* sort segments by {BodySID, IndexSID, IndexStartPosition}, remove duplicates while we're at it */
1017 for (i = 0; i < nb_segments; i++) {
1018 int best = -1, best_body_sid = -1, best_index_sid = -1, best_index_start = -1;
8b708f1c 1019 uint64_t best_index_duration = 0;
682b6db7
JG
1020
1021 for (j = 0; j < nb_segments; j++) {
1022 MXFIndexTableSegment *s = unsorted_segments[j];
1023
1024 /* Require larger BosySID, IndexSID or IndexStartPosition then the previous entry. This removes duplicates.
1025 * We want the smallest values for the keys than what we currently have, unless this is the first such entry this time around.
8b708f1c 1026 * If we come across an entry with the same IndexStartPosition but larger IndexDuration, then we'll prefer it over the one we currently have.
682b6db7
JG
1027 */
1028 if ((i == 0 || s->body_sid > last_body_sid || s->index_sid > last_index_sid || s->index_start_position > last_index_start) &&
8b708f1c
TH
1029 (best == -1 || s->body_sid < best_body_sid || s->index_sid < best_index_sid || s->index_start_position < best_index_start ||
1030 (s->index_start_position == best_index_start && s->index_duration > best_index_duration))) {
682b6db7
JG
1031 best = j;
1032 best_body_sid = s->body_sid;
1033 best_index_sid = s->index_sid;
1034 best_index_start = s->index_start_position;
8b708f1c 1035 best_index_duration = s->index_duration;
682b6db7
JG
1036 }
1037 }
1038
1039 /* no suitable entry found -> we're done */
1040 if (best == -1)
1041 break;
1042
1043 (*sorted_segments)[(*nb_sorted_segments)++] = unsorted_segments[best];
1044 last_body_sid = best_body_sid;
1045 last_index_sid = best_index_sid;
1046 last_index_start = best_index_start;
1047 }
1048
1049 av_free(unsorted_segments);
1050
1051 return 0;
1052}
1053
3cb33fbe
TH
1054/**
1055 * Computes the absolute file offset of the given essence container offset
1056 */
1057static int mxf_absolute_bodysid_offset(MXFContext *mxf, int body_sid, int64_t offset, int64_t *offset_out)
1058{
1059 int x;
1060 int64_t offset_in = offset; /* for logging */
1061
1062 for (x = 0; x < mxf->partitions_count; x++) {
1063 MXFPartition *p = &mxf->partitions[x];
1064
1065 if (p->body_sid != body_sid)
1066 continue;
1067
1068 if (offset < p->essence_length || !p->essence_length) {
1069 *offset_out = p->essence_offset + offset;
1070 return 0;
1071 }
1072
1073 offset -= p->essence_length;
1074 }
1075
4fbd3e89
JF
1076 av_log(mxf->fc, AV_LOG_ERROR,
1077 "failed to find absolute offset of %"PRIX64" in BodySID %i - partial file?\n",
3cb33fbe
TH
1078 offset_in, body_sid);
1079
1080 return AVERROR_INVALIDDATA;
1081}
1082
f028d4d1
JG
1083/**
1084 * Returns the end position of the essence container with given BodySID, or zero if unknown
1085 */
1086static int64_t mxf_essence_container_end(MXFContext *mxf, int body_sid)
682b6db7 1087{
f028d4d1
JG
1088 int x;
1089 int64_t ret = 0;
f4187945 1090
f028d4d1
JG
1091 for (x = 0; x < mxf->partitions_count; x++) {
1092 MXFPartition *p = &mxf->partitions[x];
1093
1094 if (p->body_sid != body_sid)
1095 continue;
1096
1097 if (!p->essence_length)
1098 return 0;
1099
1100 ret = p->essence_offset + p->essence_length;
f4187945 1101 }
682b6db7 1102
f028d4d1
JG
1103 return ret;
1104}
682b6db7 1105
f028d4d1
JG
1106/* EditUnit -> absolute offset */
1107static int mxf_edit_unit_absolute_offset(MXFContext *mxf, MXFIndexTable *index_table, int64_t edit_unit, int64_t *edit_unit_out, int64_t *offset_out, int nag)
1108{
1109 int i;
62271c4c 1110 int64_t offset_temp = 0;
682b6db7 1111
f028d4d1
JG
1112 for (i = 0; i < index_table->nb_segments; i++) {
1113 MXFIndexTableSegment *s = index_table->segments[i];
682b6db7 1114
f028d4d1 1115 edit_unit = FFMAX(edit_unit, s->index_start_position); /* clamp if trying to seek before start */
682b6db7 1116
f028d4d1
JG
1117 if (edit_unit < s->index_start_position + s->index_duration) {
1118 int64_t index = edit_unit - s->index_start_position;
1119
1120 if (s->edit_unit_byte_count)
1121 offset_temp += s->edit_unit_byte_count * index;
1122 else if (s->nb_index_entries) {
1123 if (s->nb_index_entries == 2 * s->index_duration + 1)
1124 index *= 2; /* Avid index */
1125
f39bbc9d 1126 if (index < 0 || index >= s->nb_index_entries) {
f028d4d1
JG
1127 av_log(mxf->fc, AV_LOG_ERROR, "IndexSID %i segment at %"PRId64" IndexEntryArray too small\n",
1128 index_table->index_sid, s->index_start_position);
1129 return AVERROR_INVALIDDATA;
682b6db7 1130 }
682b6db7 1131
f028d4d1
JG
1132 offset_temp = s->stream_offset_entries[index];
1133 } else {
1134 av_log(mxf->fc, AV_LOG_ERROR, "IndexSID %i segment at %"PRId64" missing EditUnitByteCount and IndexEntryArray\n",
1135 index_table->index_sid, s->index_start_position);
1136 return AVERROR_INVALIDDATA;
3cb33fbe 1137 }
682b6db7 1138
f028d4d1
JG
1139 if (edit_unit_out)
1140 *edit_unit_out = edit_unit;
682b6db7 1141
f028d4d1
JG
1142 return mxf_absolute_bodysid_offset(mxf, index_table->body_sid, offset_temp, offset_out);
1143 } else {
1144 /* EditUnitByteCount == 0 for VBR indexes, which is fine since they use explicit StreamOffsets */
1145 offset_temp += s->edit_unit_byte_count * s->index_duration;
682b6db7 1146 }
682b6db7
JG
1147 }
1148
f028d4d1
JG
1149 if (nag)
1150 av_log(mxf->fc, AV_LOG_ERROR, "failed to map EditUnit %"PRId64" in IndexSID %i to an offset\n", edit_unit, index_table->index_sid);
1151
1152 return AVERROR_INVALIDDATA;
1153}
1154
1155static int mxf_compute_ptses_fake_index(MXFContext *mxf, MXFIndexTable *index_table)
1156{
1157 int i, j, x;
1158 int8_t max_temporal_offset = -128;
1159
1160 /* first compute how many entries we have */
1161 for (i = 0; i < index_table->nb_segments; i++) {
1162 MXFIndexTableSegment *s = index_table->segments[i];
1163
d00257e9
TH
1164 if (!s->nb_index_entries) {
1165 index_table->nb_ptses = 0;
f028d4d1 1166 return 0; /* no TemporalOffsets */
d00257e9 1167 }
f028d4d1
JG
1168
1169 index_table->nb_ptses += s->index_duration;
1170 }
1171
1172 /* paranoid check */
1173 if (index_table->nb_ptses <= 0)
1174 return 0;
1175
fdaad635 1176 if (index_table->nb_ptses > INT_MAX / sizeof(AVIndexEntry))
f028d4d1
JG
1177 return AVERROR(ENOMEM);
1178
1179 index_table->ptses = av_mallocz(index_table->nb_ptses *
1180 sizeof(int64_t));
1181 index_table->fake_index = av_mallocz(index_table->nb_ptses *
1182 sizeof(AVIndexEntry));
1183 if (!index_table->ptses || !index_table->fake_index) {
1184 av_freep(&index_table->ptses);
1185 return AVERROR(ENOMEM);
1186 }
1187
1188 /* we may have a few bad TemporalOffsets
1189 * make sure the corresponding PTSes don't have the bogus value 0 */
1190 for (x = 0; x < index_table->nb_ptses; x++)
1191 index_table->ptses[x] = AV_NOPTS_VALUE;
1192
1193 /**
1194 * We have this:
1195 *
1196 * x TemporalOffset
1197 * 0: 0
1198 * 1: 1
1199 * 2: 1
1200 * 3: -2
1201 * 4: 1
1202 * 5: 1
1203 * 6: -2
1204 *
1205 * We want to transform it into this:
1206 *
1207 * x DTS PTS
1208 * 0: -1 0
1209 * 1: 0 3
1210 * 2: 1 1
1211 * 3: 2 2
1212 * 4: 3 6
1213 * 5: 4 4
1214 * 6: 5 5
1215 *
1216 * We do this by bucket sorting x by x+TemporalOffset[x] into mxf->ptses,
1217 * then settings mxf->first_dts = -max(TemporalOffset[x]).
1218 * The latter makes DTS <= PTS.
1219 */
1220 for (i = x = 0; i < index_table->nb_segments; i++) {
1221 MXFIndexTableSegment *s = index_table->segments[i];
1222 int index_delta = 1;
e24167aa 1223 int n = s->nb_index_entries;
f028d4d1 1224
e24167aa 1225 if (s->nb_index_entries == 2 * s->index_duration + 1) {
f028d4d1 1226 index_delta = 2; /* Avid index */
e24167aa
TH
1227 /* ignore the last entry - it's the size of the essence container */
1228 n--;
1229 }
f028d4d1 1230
e24167aa 1231 for (j = 0; j < n; j += index_delta, x++) {
f028d4d1
JG
1232 int offset = s->temporal_offset_entries[j] / index_delta;
1233 int index = x + offset;
1234
a3923482
TH
1235 if (x >= index_table->nb_ptses) {
1236 av_log(mxf->fc, AV_LOG_ERROR,
1237 "x >= nb_ptses - IndexEntryCount %i < IndexDuration %"PRId64"?\n",
1238 s->nb_index_entries, s->index_duration);
1239 break;
1240 }
1241
f028d4d1
JG
1242 index_table->fake_index[x].timestamp = x;
1243 index_table->fake_index[x].flags = !(s->flag_entries[j] & 0x30) ? AVINDEX_KEYFRAME : 0;
1244
1245 if (index < 0 || index >= index_table->nb_ptses) {
1246 av_log(mxf->fc, AV_LOG_ERROR,
1247 "index entry %i + TemporalOffset %i = %i, which is out of bounds\n",
1248 x, offset, index);
1249 continue;
1250 }
1251
1252 index_table->ptses[index] = x;
1253 max_temporal_offset = FFMAX(max_temporal_offset, offset);
1254 }
1255 }
1256
1257 index_table->first_dts = -max_temporal_offset;
682b6db7
JG
1258
1259 return 0;
1260}
1261
f028d4d1
JG
1262/**
1263 * Sorts and collects index table segments into index tables.
1264 * Also computes PTSes if possible.
1265 */
1266static int mxf_compute_index_tables(MXFContext *mxf)
1267{
1268 int i, j, k, ret, nb_sorted_segments;
1269 MXFIndexTableSegment **sorted_segments = NULL;
1270
1271 if ((ret = mxf_get_sorted_table_segments(mxf, &nb_sorted_segments, &sorted_segments)) ||
1272 nb_sorted_segments <= 0) {
1273 av_log(mxf->fc, AV_LOG_WARNING, "broken or empty index\n");
1274 return 0;
1275 }
1276
1277 /* sanity check and count unique BodySIDs/IndexSIDs */
1278 for (i = 0; i < nb_sorted_segments; i++) {
1279 if (i == 0 || sorted_segments[i-1]->index_sid != sorted_segments[i]->index_sid)
1280 mxf->nb_index_tables++;
1281 else if (sorted_segments[i-1]->body_sid != sorted_segments[i]->body_sid) {
1282 av_log(mxf->fc, AV_LOG_ERROR, "found inconsistent BodySID\n");
1283 ret = AVERROR_INVALIDDATA;
1284 goto finish_decoding_index;
1285 }
1286 }
1287
1a4e4ad0
LB
1288 mxf->index_tables = av_mallocz_array(mxf->nb_index_tables,
1289 sizeof(*mxf->index_tables));
1290 if (!mxf->index_tables) {
f028d4d1
JG
1291 av_log(mxf->fc, AV_LOG_ERROR, "failed to allocate index tables\n");
1292 ret = AVERROR(ENOMEM);
1293 goto finish_decoding_index;
1294 }
1295
1296 /* distribute sorted segments to index tables */
1297 for (i = j = 0; i < nb_sorted_segments; i++) {
1298 if (i != 0 && sorted_segments[i-1]->index_sid != sorted_segments[i]->index_sid) {
1299 /* next IndexSID */
1300 j++;
1301 }
1302
1303 mxf->index_tables[j].nb_segments++;
1304 }
1305
1306 for (i = j = 0; j < mxf->nb_index_tables; i += mxf->index_tables[j++].nb_segments) {
1307 MXFIndexTable *t = &mxf->index_tables[j];
1308
1a4e4ad0
LB
1309 t->segments = av_mallocz_array(t->nb_segments,
1310 sizeof(*t->segments));
1311
1312 if (!t->segments) {
f028d4d1
JG
1313 av_log(mxf->fc, AV_LOG_ERROR, "failed to allocate IndexTableSegment"
1314 " pointer array\n");
1315 ret = AVERROR(ENOMEM);
1316 goto finish_decoding_index;
1317 }
1318
1319 if (sorted_segments[i]->index_start_position)
1320 av_log(mxf->fc, AV_LOG_WARNING, "IndexSID %i starts at EditUnit %"PRId64" - seeking may not work as expected\n",
1321 sorted_segments[i]->index_sid, sorted_segments[i]->index_start_position);
1322
1323 memcpy(t->segments, &sorted_segments[i], t->nb_segments * sizeof(MXFIndexTableSegment*));
1324 t->index_sid = sorted_segments[i]->index_sid;
1325 t->body_sid = sorted_segments[i]->body_sid;
1326
1327 if ((ret = mxf_compute_ptses_fake_index(mxf, t)) < 0)
1328 goto finish_decoding_index;
1329
1330 /* fix zero IndexDurations */
1331 for (k = 0; k < t->nb_segments; k++) {
1332 if (t->segments[k]->index_duration)
1333 continue;
1334
1335 if (t->nb_segments > 1)
1336 av_log(mxf->fc, AV_LOG_WARNING, "IndexSID %i segment %i has zero IndexDuration and there's more than one segment\n",
1337 t->index_sid, k);
1338
1339 if (mxf->fc->nb_streams <= 0) {
1340 av_log(mxf->fc, AV_LOG_WARNING, "no streams?\n");
1341 break;
1342 }
1343
1344 /* assume the first stream's duration is reasonable
1345 * leave index_duration = 0 on further segments in case we have any (unlikely)
1346 */
1347 t->segments[k]->index_duration = mxf->fc->streams[0]->duration;
1348 break;
1349 }
1350 }
1351
1352 ret = 0;
1353finish_decoding_index:
1354 av_free(sorted_segments);
1355 return ret;
1356}
1357
5ed032fb
TH
1358static int mxf_is_intra_only(MXFDescriptor *d)
1359{
1360 return mxf_get_codec_ul(mxf_intra_only_essence_container_uls,
36ef5369 1361 &d->essence_container_ul)->id != AV_CODEC_ID_NONE ||
5ed032fb 1362 mxf_get_codec_ul(mxf_intra_only_picture_essence_coding_uls,
36ef5369 1363 &d->essence_codec_ul)->id != AV_CODEC_ID_NONE;
5ed032fb
TH
1364}
1365
d09ea6ba
BC
1366static int mxf_parse_structural_metadata(MXFContext *mxf)
1367{
1368 MXFPackage *material_package = NULL;
1369 MXFPackage *temp_package = NULL;
682b6db7 1370 int i, j, k, ret;
d09ea6ba 1371
1a3eb042 1372 av_log(mxf->fc, AV_LOG_TRACE, "metadata sets count %d\n", mxf->metadata_sets_count);
d09ea6ba
BC
1373 /* TODO: handle multiple material packages (OP3x) */
1374 for (i = 0; i < mxf->packages_count; i++) {
1375 material_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[i], MaterialPackage);
1376 if (material_package) break;
1377 }
1378 if (!material_package) {
1379 av_log(mxf->fc, AV_LOG_ERROR, "no material package found\n");
bcd5d979 1380 return AVERROR_INVALIDDATA;
d09ea6ba
BC
1381 }
1382
1383 for (i = 0; i < material_package->tracks_count; i++) {
1384 MXFPackage *source_package = NULL;
1385 MXFTrack *material_track = NULL;
1386 MXFTrack *source_track = NULL;
1387 MXFTrack *temp_track = NULL;
1388 MXFDescriptor *descriptor = NULL;
1389 MXFStructuralComponent *component = NULL;
1390 UID *essence_container_ul = NULL;
1391 const MXFCodecUL *codec_ul = NULL;
1392 const MXFCodecUL *container_ul = NULL;
fda891e1 1393 const MXFCodecUL *pix_fmt_ul = NULL;
d09ea6ba
BC
1394 AVStream *st;
1395
1396 if (!(material_track = mxf_resolve_strong_ref(mxf, &material_package->tracks_refs[i], Track))) {
1397 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve material track strong ref\n");
1398 continue;
1399 }
1400
1401 if (!(material_track->sequence = mxf_resolve_strong_ref(mxf, &material_track->sequence_ref, Sequence))) {
1402 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve material track sequence strong ref\n");
1e699993 1403 continue;
d09ea6ba
BC
1404 }
1405
1406 /* TODO: handle multiple source clips */
1407 for (j = 0; j < material_track->sequence->structural_components_count; j++) {
1408 /* TODO: handle timecode component */
1409 component = mxf_resolve_strong_ref(mxf, &material_track->sequence->structural_components_refs[j], SourceClip);
1410 if (!component)
1411 continue;
1412
1413 for (k = 0; k < mxf->packages_count; k++) {
1414 temp_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[k], SourcePackage);
1415 if (!temp_package)
1416 continue;
1417 if (!memcmp(temp_package->package_uid, component->source_package_uid, 16)) {
1418 source_package = temp_package;
1419 break;
1420 }
1421 }
1422 if (!source_package) {
1a3eb042 1423 av_log(mxf->fc, AV_LOG_TRACE, "material track %d: no corresponding source package found\n", material_track->track_id);
d09ea6ba
BC
1424 break;
1425 }
1426 for (k = 0; k < source_package->tracks_count; k++) {
1427 if (!(temp_track = mxf_resolve_strong_ref(mxf, &source_package->tracks_refs[k], Track))) {
1428 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track strong ref\n");
f028d4d1
JG
1429 ret = AVERROR_INVALIDDATA;
1430 goto fail_and_free;
d09ea6ba
BC
1431 }
1432 if (temp_track->track_id == component->source_track_id) {
1433 source_track = temp_track;
1434 break;
1435 }
1436 }
1437 if (!source_track) {
1438 av_log(mxf->fc, AV_LOG_ERROR, "material track %d: no corresponding source track found\n", material_track->track_id);
1439 break;
1440 }
1441 }
effe3b95 1442 if (!source_track || !component)
d09ea6ba
BC
1443 continue;
1444
09991519
TH
1445 if (!(source_track->sequence = mxf_resolve_strong_ref(mxf, &source_track->sequence_ref, Sequence))) {
1446 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track sequence strong ref\n");
f028d4d1
JG
1447 ret = AVERROR_INVALIDDATA;
1448 goto fail_and_free;
09991519
TH
1449 }
1450
1451 /* 0001GL00.MXF.A1.mxf_opatom.mxf has the same SourcePackageID as 0001GL.MXF.V1.mxf_opatom.mxf
1452 * This would result in both files appearing to have two streams. Work around this by sanity checking DataDefinition */
1453 if (memcmp(material_track->sequence->data_definition_ul, source_track->sequence->data_definition_ul, 16)) {
1454 av_log(mxf->fc, AV_LOG_ERROR, "material track %d: DataDefinition mismatch\n", material_track->track_id);
1455 continue;
1456 }
1457
84ad31ff 1458 st = avformat_new_stream(mxf->fc, NULL);
d09ea6ba
BC
1459 if (!st) {
1460 av_log(mxf->fc, AV_LOG_ERROR, "could not allocate stream\n");
f028d4d1
JG
1461 ret = AVERROR(ENOMEM);
1462 goto fail_and_free;
d09ea6ba 1463 }
84ad31ff 1464 st->id = source_track->track_id;
d09ea6ba 1465 st->priv_data = source_track;
5b930092 1466 source_track->original_duration = st->duration = component->duration;
d09ea6ba
BC
1467 if (st->duration == -1)
1468 st->duration = AV_NOPTS_VALUE;
1469 st->start_time = component->start_position;
7d56f2ff
LB
1470 if (material_track->edit_rate.num <= 0 ||
1471 material_track->edit_rate.den <= 0) {
1472 av_log(mxf->fc, AV_LOG_WARNING,
1473 "Invalid edit rate (%d/%d) found on stream #%d, "
1474 "defaulting to 25/1\n",
1475 material_track->edit_rate.num,
1476 material_track->edit_rate.den, st->index);
1477 material_track->edit_rate = (AVRational){25, 1};
1478 }
5255ca24 1479 avpriv_set_pts_info(st, 64, material_track->edit_rate.den, material_track->edit_rate.num);
d09ea6ba 1480
5b930092
MB
1481 /* ensure SourceTrack EditRate == MaterialTrack EditRate since only
1482 * the former is accessible via st->priv_data */
1483 source_track->edit_rate = material_track->edit_rate;
1484
d09ea6ba 1485 PRINT_KEY(mxf->fc, "data definition ul", source_track->sequence->data_definition_ul);
5ac4d768 1486 codec_ul = mxf_get_codec_ul(ff_mxf_data_definition_uls, &source_track->sequence->data_definition_ul);
9200514a 1487 st->codecpar->codec_type = codec_ul->id;
d09ea6ba
BC
1488
1489 source_package->descriptor = mxf_resolve_strong_ref(mxf, &source_package->descriptor_ref, AnyType);
1490 if (source_package->descriptor) {
1491 if (source_package->descriptor->type == MultipleDescriptor) {
1492 for (j = 0; j < source_package->descriptor->sub_descriptors_count; j++) {
1493 MXFDescriptor *sub_descriptor = mxf_resolve_strong_ref(mxf, &source_package->descriptor->sub_descriptors_refs[j], Descriptor);
1494
1495 if (!sub_descriptor) {
1496 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve sub descriptor strong ref\n");
1497 continue;
1498 }
1499 if (sub_descriptor->linked_track_id == source_track->track_id) {
1500 descriptor = sub_descriptor;
1501 break;
1502 }
1503 }
1504 } else if (source_package->descriptor->type == Descriptor)
1505 descriptor = source_package->descriptor;
1506 }
1507 if (!descriptor) {
1508 av_log(mxf->fc, AV_LOG_INFO, "source track %d: stream %d, no descriptor found\n", source_track->track_id, st->index);
1509 continue;
1510 }
d09ea6ba
BC
1511 PRINT_KEY(mxf->fc, "essence codec ul", descriptor->essence_codec_ul);
1512 PRINT_KEY(mxf->fc, "essence container ul", descriptor->essence_container_ul);
d09ea6ba
BC
1513 essence_container_ul = &descriptor->essence_container_ul;
1514 /* HACK: replacing the original key with mxf_encrypted_essence_container
1515 * is not allowed according to s429-6, try to find correct information anyway */
1516 if (IS_KLV_KEY(essence_container_ul, mxf_encrypted_essence_container)) {
1517 av_log(mxf->fc, AV_LOG_INFO, "broken encrypted mxf file\n");
1518 for (k = 0; k < mxf->metadata_sets_count; k++) {
1519 MXFMetadataSet *metadata = mxf->metadata_sets[k];
1520 if (metadata->type == CryptoContext) {
1521 essence_container_ul = &((MXFCryptoContext *)metadata)->source_container_ul;
1522 break;
1523 }
1524 }
1525 }
f028d4d1 1526
d09ea6ba 1527 /* TODO: drop PictureEssenceCoding and SoundEssenceCompression, only check EssenceContainer */
c69968b4 1528 codec_ul = mxf_get_codec_ul(ff_mxf_codec_uls, &descriptor->essence_codec_ul);
9200514a 1529 st->codecpar->codec_id = codec_ul->id;
ecf442a5 1530
9200514a 1531 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
5ed032fb 1532 source_track->intra_only = mxf_is_intra_only(descriptor);
44deb9f6 1533 container_ul = mxf_get_codec_ul(mxf_picture_essence_container_uls, essence_container_ul);
9200514a
AK
1534 if (st->codecpar->codec_id == AV_CODEC_ID_NONE)
1535 st->codecpar->codec_id = container_ul->id;
1536 st->codecpar->width = descriptor->width;
634d6705 1537 /* Field height, not frame height */
9200514a 1538 st->codecpar->height = descriptor->height;
634d6705
JA
1539 switch (descriptor->frame_layout) {
1540 case SegmentedFrame:
1541 /* This one is a weird layout I don't fully understand. */
1542 av_log(mxf->fc, AV_LOG_INFO,
1543 "SegmentedFrame layout isn't currently supported\n");
1544 break;
1545 case FullFrame:
9200514a 1546 st->codecpar->field_order = AV_FIELD_PROGRESSIVE;
634d6705
JA
1547 break;
1548 case OneField:
1549 /* Every other line is stored and needs to be duplicated. */
1550 av_log(mxf->fc, AV_LOG_INFO,
1551 "OneField frame layout isn't currently supported\n");
1552 break;
1553 /* The correct thing to do here is fall through, but by
1554 * breaking we might be able to decode some streams at half
1555 * the vertical resolution, rather than not al all.
1556 * It's also for compatibility with the old behavior. */
1557 case SeparateFields:
1558 case MixedFields:
c7166248
MB
1559 switch (descriptor->field_dominance) {
1560 case MXF_TFF:
9200514a 1561 st->codecpar->field_order = AV_FIELD_TT;
c7166248
MB
1562 break;
1563 case MXF_BFF:
9200514a 1564 st->codecpar->field_order = AV_FIELD_BB;
c7166248
MB
1565 break;
1566 default:
1567 avpriv_request_sample(mxf->fc,
1568 "Field dominance %d support",
1569 descriptor->field_dominance);
1570 break;
1571 }
634d6705 1572 /* Turn field height into frame height. */
9200514a 1573 st->codecpar->height *= 2;
ad6b00d8 1574 break;
634d6705
JA
1575 default:
1576 av_log(mxf->fc, AV_LOG_INFO,
1577 "Unknown frame layout type: %d\n",
1578 descriptor->frame_layout);
1579 }
9200514a
AK
1580 if (st->codecpar->codec_id == AV_CODEC_ID_RAWVIDEO) {
1581 st->codecpar->format = descriptor->pix_fmt;
1582 if (st->codecpar->format == AV_PIX_FMT_NONE) {
fda891e1
PN
1583 pix_fmt_ul = mxf_get_codec_ul(ff_mxf_pixel_format_uls,
1584 &descriptor->essence_codec_ul);
9200514a
AK
1585 st->codecpar->format = pix_fmt_ul->id;
1586 if (st->codecpar->format == AV_PIX_FMT_NONE) {
fda891e1
PN
1587 /* support files created before RP224v10 by defaulting to UYVY422
1588 if subsampling is 4:2:2 and component depth is 8-bit */
1589 if (descriptor->horiz_subsampling == 2 &&
1590 descriptor->vert_subsampling == 1 &&
1591 descriptor->component_depth == 8) {
9200514a 1592 st->codecpar->format = AV_PIX_FMT_UYVY422;
fda891e1
PN
1593 }
1594 }
1595 }
1596 }
d09ea6ba 1597 st->need_parsing = AVSTREAM_PARSE_HEADERS;
259fe728
MAA
1598 if (material_track->sequence->origin) {
1599 char material_origin[3];
1600 snprintf(material_origin, sizeof(material_origin), "%d", material_track->sequence->origin);
1601 av_dict_set(&st->metadata, "material_track_origin", material_origin, 0);
1602 }
1603 if (source_track->sequence->origin) {
1604 char source_origin[3];
1605 snprintf(source_origin, sizeof(source_origin), "%d", source_track->sequence->origin);
1606 av_dict_set(&st->metadata, "source_track_origin", source_origin, 0);
1607 }
9200514a 1608 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
44deb9f6 1609 container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, essence_container_ul);
9200514a
AK
1610 if (st->codecpar->codec_id == AV_CODEC_ID_NONE)
1611 st->codecpar->codec_id = container_ul->id;
1612 st->codecpar->channels = descriptor->channels;
1613 st->codecpar->bits_per_coded_sample = descriptor->bits_per_sample;
d6b81ff9 1614
93370d12 1615 if (descriptor->sample_rate.den > 0) {
9200514a 1616 st->codecpar->sample_rate = descriptor->sample_rate.num / descriptor->sample_rate.den;
93370d12
AK
1617 avpriv_set_pts_info(st, 64, descriptor->sample_rate.den, descriptor->sample_rate.num);
1618 } else {
1619 av_log(mxf->fc, AV_LOG_WARNING, "invalid sample rate (%d/%d) "
ad0560fe 1620 "found for stream #%d, time base forced to 1/48000\n",
93370d12
AK
1621 descriptor->sample_rate.num, descriptor->sample_rate.den,
1622 st->index);
1623 avpriv_set_pts_info(st, 64, 1, 48000);
1624 }
d6b81ff9 1625
5b930092
MB
1626 /* if duration is set, rescale it from EditRate to SampleRate */
1627 if (st->duration != AV_NOPTS_VALUE)
1628 st->duration = av_rescale_q(st->duration,
1629 av_inv_q(material_track->edit_rate),
1630 st->time_base);
1631
36ef5369 1632 /* TODO: implement AV_CODEC_ID_RAWAUDIO */
9200514a 1633 if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE) {
6547fd92 1634 if (descriptor->bits_per_sample > 16 && descriptor->bits_per_sample <= 24)
9200514a 1635 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24LE;
d09ea6ba 1636 else if (descriptor->bits_per_sample == 32)
9200514a
AK
1637 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
1638 } else if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE) {
6547fd92 1639 if (descriptor->bits_per_sample > 16 && descriptor->bits_per_sample <= 24)
9200514a 1640 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24BE;
d09ea6ba 1641 else if (descriptor->bits_per_sample == 32)
9200514a
AK
1642 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32BE;
1643 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
d09ea6ba
BC
1644 st->need_parsing = AVSTREAM_PARSE_FULL;
1645 }
9200514a 1646 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
c9d982aa
MAA
1647 int codec_id = mxf_get_codec_ul(mxf_data_essence_container_uls,
1648 essence_container_ul)->id;
1649 if (codec_id >= 0 &&
1650 codec_id < FF_ARRAY_ELEMS(mxf_data_essence_descriptor)) {
1651 av_dict_set(&st->metadata, "data_type",
1652 mxf_data_essence_descriptor[codec_id], 0);
1653 }
d09ea6ba 1654 }
ecf442a5 1655 if (descriptor->extradata) {
9200514a
AK
1656 st->codecpar->extradata = av_mallocz(descriptor->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
1657 if (st->codecpar->extradata) {
1658 memcpy(st->codecpar->extradata, descriptor->extradata, descriptor->extradata_size);
1659 st->codecpar->extradata_size = descriptor->extradata_size;
95fd52c1 1660 }
9200514a 1661 } else if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
ecf442a5
RD
1662 ret = ff_generate_avci_extradata(st);
1663 if (ret < 0)
1664 return ret;
1665 }
9200514a 1666 if (st->codecpar->codec_type != AVMEDIA_TYPE_DATA && (*essence_container_ul)[15] > 0x01) {
f028d4d1
JG
1667 /* TODO: decode timestamps */
1668 st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;
d09ea6ba
BC
1669 }
1670 }
f028d4d1
JG
1671
1672 ret = 0;
1673fail_and_free:
1674 return ret;
d09ea6ba
BC
1675}
1676
570af382
MB
1677static int mxf_read_utf16_string(AVIOContext *pb, int size, char** str)
1678{
1679 int ret;
1680 size_t buf_size;
1681
1682 if (size < 0)
1683 return AVERROR(EINVAL);
1684
1685 buf_size = size + size / 2 + 1;
1686 *str = av_malloc(buf_size);
1687 if (!*str)
1688 return AVERROR(ENOMEM);
1689
1690 if ((ret = avio_get_str16be(pb, size, *str, buf_size)) < 0) {
1691 av_freep(str);
1692 return ret;
1693 }
1694
1695 return ret;
1696}
1697
1698static int mxf_uid_to_str(UID uid, char **str)
1699{
1700 int i;
1701 char *p;
1702 p = *str = av_mallocz(sizeof(UID) * 2 + 4 + 1);
1703 if (!p)
1704 return AVERROR(ENOMEM);
1705 for (i = 0; i < sizeof(UID); i++) {
1706 snprintf(p, 2 + 1, "%.2x", uid[i]);
1707 p += 2;
1708 if (i == 3 || i == 5 || i == 7 || i == 9) {
1709 snprintf(p, 1 + 1, "-");
1710 p++;
1711 }
1712 }
1713 return 0;
1714}
1715
1716static int mxf_timestamp_to_str(uint64_t timestamp, char **str)
1717{
1718 struct tm time = { 0 };
1719 time.tm_year = (timestamp >> 48) - 1900;
1720 time.tm_mon = (timestamp >> 40 & 0xFF) - 1;
1721 time.tm_mday = (timestamp >> 32 & 0xFF);
1722 time.tm_hour = (timestamp >> 24 & 0xFF);
1723 time.tm_min = (timestamp >> 16 & 0xFF);
1724 time.tm_sec = (timestamp >> 8 & 0xFF);
1725
8cafeb8b
MS
1726 /* msvcrt versions of strftime calls the invalid parameter handler
1727 * (aborting the process if one isn't set) if the parameters are out
1728 * of range. */
1729 time.tm_mon = av_clip(time.tm_mon, 0, 11);
1730 time.tm_mday = av_clip(time.tm_mday, 1, 31);
1731 time.tm_hour = av_clip(time.tm_hour, 0, 23);
1732 time.tm_min = av_clip(time.tm_min, 0, 59);
1733 time.tm_sec = av_clip(time.tm_sec, 0, 59);
1734
570af382
MB
1735 *str = av_mallocz(32);
1736 if (!*str)
1737 return AVERROR(ENOMEM);
9dcf2397 1738 if (!strftime(*str, 32, "%Y-%m-%d %H:%M:%S", &time))
6448f15a 1739 (*str)[0] = '\0';
570af382
MB
1740
1741 return 0;
1742}
1743
1744#define SET_STR_METADATA(pb, name, str) do { \
1745 if ((ret = mxf_read_utf16_string(pb, size, &str)) < 0) \
1746 return ret; \
1747 av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
1748} while (0)
1749
1750#define SET_UID_METADATA(pb, name, var, str) do { \
1751 avio_read(pb, var, 16); \
1752 if ((ret = mxf_uid_to_str(var, &str)) < 0) \
1753 return ret; \
1754 av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
1755} while (0)
1756
1757#define SET_TS_METADATA(pb, name, var, str) do { \
1758 var = avio_rb64(pb); \
1759 if ((ret = mxf_timestamp_to_str(var, &str)) < 0) \
1760 return ret; \
1761 av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
1762} while (0)
1763
1764static int mxf_read_identification_metadata(void *arg, AVIOContext *pb, int tag, int size, UID _uid, int64_t klv_offset)
1765{
1766 MXFContext *mxf = arg;
1767 AVFormatContext *s = mxf->fc;
1768 int ret;
1769 UID uid = { 0 };
1770 char *str = NULL;
1771 uint64_t ts;
1772 switch (tag) {
1773 case 0x3C01:
1774 SET_STR_METADATA(pb, "company_name", str);
1775 break;
1776 case 0x3C02:
1777 SET_STR_METADATA(pb, "product_name", str);
1778 break;
1779 case 0x3C04:
1780 SET_STR_METADATA(pb, "product_version", str);
1781 break;
1782 case 0x3C05:
1783 SET_UID_METADATA(pb, "product_uid", uid, str);
1784 break;
1785 case 0x3C06:
1786 SET_TS_METADATA(pb, "modification_date", ts, str);
1787 break;
1788 case 0x3C08:
1789 SET_STR_METADATA(pb, "application_platform", str);
1790 break;
1791 case 0x3C09:
1792 SET_UID_METADATA(pb, "generation_uid", uid, str);
1793 break;
1794 case 0x3C0A:
1795 SET_UID_METADATA(pb, "uid", uid, str);
1796 break;
1797 }
1798 return 0;
1799}
1800
d09ea6ba 1801static const MXFMetadataReadTableEntry mxf_metadata_read_table[] = {
af9481d7
LB
1802 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x05,0x01,0x00 }, mxf_read_primer_pack },
1803// { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x2f,0x00 }, mxf_read_preface_pack },
1804 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x01,0x00 }, mxf_read_partition_pack },
1805 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x02,0x00 }, mxf_read_partition_pack },
1806 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x03,0x00 }, mxf_read_partition_pack },
1807 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x04,0x00 }, mxf_read_partition_pack },
1808 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x03,0x01,0x00 }, mxf_read_partition_pack },
1809 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x03,0x02,0x00 }, mxf_read_partition_pack },
1810 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x03,0x03,0x00 }, mxf_read_partition_pack },
1811 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }, mxf_read_partition_pack },
1812 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x04,0x02,0x00 }, mxf_read_partition_pack },
1813 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }, mxf_read_partition_pack },
1814 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x30,0x00 }, mxf_read_identification_metadata },
1815 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x18,0x00 }, mxf_read_content_storage, 0, AnyType },
1816 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x37,0x00 }, mxf_read_source_package, sizeof(MXFPackage), SourcePackage },
1817 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x36,0x00 }, mxf_read_material_package, sizeof(MXFPackage), MaterialPackage },
1818 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x0F,0x00 }, mxf_read_sequence, sizeof(MXFSequence), Sequence },
1819 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x11,0x00 }, mxf_read_source_clip, sizeof(MXFStructuralComponent), SourceClip },
1820 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x44,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), MultipleDescriptor },
1821 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* Generic Sound */
1822 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* CDCI */
1823 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x29,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* RGBA */
1824 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* MPEG 2 Video */
1825 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* Wave */
1826 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* AES3 */
747cd956 1827 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* MPEG2VideoDescriptor */
c9d982aa 1828 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x5c,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* VANC/VBI - SMPTE 436M */
369380e1 1829 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x5e,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* MPEG2AudioDescriptor */
af9481d7
LB
1830 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3A,0x00 }, mxf_read_track, sizeof(MXFTrack), Track }, /* Static Track */
1831 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3B,0x00 }, mxf_read_track, sizeof(MXFTrack), Track }, /* Generic Track */
1832 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x04,0x01,0x02,0x02,0x00,0x00 }, mxf_read_cryptographic_context, sizeof(MXFCryptoContext), CryptoContext },
1833 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 }, mxf_read_index_table_segment, sizeof(MXFIndexTableSegment), IndexTableSegment },
d09ea6ba
BC
1834 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL, 0, AnyType },
1835};
1836
39bb30f6 1837static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, MXFMetadataReadFunc *read_child, int ctx_size, enum MXFMetadataSetType type)
d09ea6ba 1838{
ae628ec1 1839 AVIOContext *pb = mxf->fc->pb;
d09ea6ba 1840 MXFMetadataSet *ctx = ctx_size ? av_mallocz(ctx_size) : mxf;
a2704c97 1841 uint64_t klv_end = avio_tell(pb) + klv->length;
d09ea6ba
BC
1842
1843 if (!ctx)
bcd5d979 1844 return AVERROR(ENOMEM);
0373ec63 1845 while (avio_tell(pb) + 4 < klv_end && !pb->eof_reached) {
bcd5d979 1846 int ret;
b7effd4e
AK
1847 int tag = avio_rb16(pb);
1848 int size = avio_rb16(pb); /* KLV specified by 0x53 */
a2704c97 1849 uint64_t next = avio_tell(pb) + size;
d09ea6ba
BC
1850 UID uid = {0};
1851
1a3eb042 1852 av_log(mxf->fc, AV_LOG_TRACE, "local tag %#04x size %d\n", tag, size);
d09ea6ba 1853 if (!size) { /* ignore empty tag, needed for some files with empty UMID tag */
8a47ad5e 1854 av_log(mxf->fc, AV_LOG_ERROR, "local tag %#04x with 0 size\n", tag);
d09ea6ba
BC
1855 continue;
1856 }
1857 if (tag > 0x7FFF) { /* dynamic tag */
1858 int i;
1859 for (i = 0; i < mxf->local_tags_count; i++) {
1860 int local_tag = AV_RB16(mxf->local_tags+i*18);
1861 if (local_tag == tag) {
1862 memcpy(uid, mxf->local_tags+i*18+2, 16);
1a3eb042 1863 av_log(mxf->fc, AV_LOG_TRACE, "local tag %#04x\n", local_tag);
d09ea6ba 1864 PRINT_KEY(mxf->fc, "uid", uid);
d09ea6ba
BC
1865 }
1866 }
1867 }
1868 if (ctx_size && tag == 0x3C0A)
b7effd4e 1869 avio_read(pb, ctx->uid, 16);
21cc4b33 1870 else if ((ret = read_child(ctx, pb, tag, size, uid, -1)) < 0)
bcd5d979 1871 return ret;
d09ea6ba 1872
11800c8c
TH
1873 /* Accept the 64k local set limit being exceeded (Avid). Don't accept
1874 * it extending past the end of the KLV though (zzuf5.mxf). */
1875 if (avio_tell(pb) > klv_end) {
cc1e3ace
TH
1876 if (ctx_size)
1877 av_free(ctx);
1878
11800c8c
TH
1879 av_log(mxf->fc, AV_LOG_ERROR,
1880 "local tag %#04x extends past end of local set @ %#"PRIx64"\n",
1881 tag, klv->offset);
1882 return AVERROR_INVALIDDATA;
1883 } else if (avio_tell(pb) <= next) /* only seek forward, else this can loop for a long time */
1884 avio_seek(pb, next, SEEK_SET);
d09ea6ba
BC
1885 }
1886 if (ctx_size) ctx->type = type;
1887 return ctx_size ? mxf_add_metadata_set(mxf, ctx) : 0;
1888}
1889
775d3b4a
TH
1890/**
1891 * Seeks to the previous partition, if possible
1892 * @return <= 0 if we should stop parsing, > 0 if we should keep going
1893 */
1894static int mxf_seek_to_previous_partition(MXFContext *mxf)
1895{
1896 AVIOContext *pb = mxf->fc->pb;
1897
1898 if (!mxf->current_partition ||
1899 mxf->run_in + mxf->current_partition->previous_partition <= mxf->last_forward_tell)
1900 return 0; /* we've parsed all partitions */
1901
1902 /* seek to previous partition */
1903 avio_seek(pb, mxf->run_in + mxf->current_partition->previous_partition, SEEK_SET);
1904 mxf->current_partition = NULL;
1905
1a3eb042 1906 av_log(mxf->fc, AV_LOG_TRACE, "seeking to previous partition\n");
775d3b4a
TH
1907
1908 return 1;
1909}
1910
1911/**
1912 * Called when essence is encountered
1913 * @return <= 0 if we should stop parsing, > 0 if we should keep going
1914 */
1915static int mxf_parse_handle_essence(MXFContext *mxf)
1916{
1917 AVIOContext *pb = mxf->fc->pb;
1918 int64_t ret;
1919
775d3b4a
TH
1920 if (mxf->parsing_backward) {
1921 return mxf_seek_to_previous_partition(mxf);
1922 } else {
f06f6daa
PM
1923 uint64_t offset = mxf->footer_partition ? mxf->footer_partition
1924 : mxf->last_partition;
1925
1926 if (!offset) {
1a3eb042 1927 av_log(mxf->fc, AV_LOG_TRACE, "no last partition\n");
775d3b4a
TH
1928 return 0;
1929 }
1930
1a3eb042 1931 av_log(mxf->fc, AV_LOG_TRACE, "seeking to last partition\n");
775d3b4a
TH
1932
1933 /* remember where we were so we don't end up seeking further back than this */
1934 mxf->last_forward_tell = avio_tell(pb);
1935
83548fe8 1936 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL)) {
f06f6daa 1937 av_log(mxf->fc, AV_LOG_INFO, "file is not seekable - not parsing last partition\n");
775d3b4a
TH
1938 return -1;
1939 }
1940
f06f6daa
PM
1941 /* seek to last partition and parse backward */
1942 if ((ret = avio_seek(pb, mxf->run_in + offset, SEEK_SET)) < 0) {
1943 av_log(mxf->fc, AV_LOG_ERROR,
1944 "failed to seek to last partition @ 0x%" PRIx64
1945 " (%"PRId64") - partial file?\n",
1946 mxf->run_in + offset, ret);
775d3b4a
TH
1947 return ret;
1948 }
1949
1950 mxf->current_partition = NULL;
1951 mxf->parsing_backward = 1;
1952 }
1953
1954 return 1;
1955}
1956
1957/**
1958 * Called when the next partition or EOF is encountered
1959 * @return <= 0 if we should stop parsing, > 0 if we should keep going
1960 */
1961static int mxf_parse_handle_partition_or_eof(MXFContext *mxf)
1962{
1963 return mxf->parsing_backward ? mxf_seek_to_previous_partition(mxf) : 1;
1964}
1965
21cc4b33
TH
1966/**
1967 * Figure out the proper offset and length of the essence container
1968 * in each partition
1969 */
1970static void mxf_compute_essence_containers(MXFContext *mxf)
1971{
1972 int x;
1973
1974 /* everything is already correct */
1975 if (mxf->op == OPAtom)
1976 return;
1977
1978 for (x = 0; x < mxf->partitions_count; x++) {
1979 MXFPartition *p = &mxf->partitions[x];
1980
1981 if (!p->body_sid)
1982 continue; /* BodySID == 0 -> no essence */
1983
1984 if (x >= mxf->partitions_count - 1)
1985 break; /* last partition - can't compute length (and we don't need to) */
1986
1987 /* essence container spans to the next partition */
1988 p->essence_length = mxf->partitions[x+1].this_partition - p->essence_offset;
1989
1990 if (p->essence_length < 0) {
1991 /* next ThisPartition < essence_offset */
1992 p->essence_length = 0;
4fbd3e89
JF
1993 av_log(mxf->fc, AV_LOG_ERROR,
1994 "partition %i: bad ThisPartition = %"PRIX64"\n",
21cc4b33
TH
1995 x+1, mxf->partitions[x+1].this_partition);
1996 }
1997 }
1998}
1999
2000static int64_t round_to_kag(int64_t position, int kag_size)
2001{
2002 /* TODO: account for run-in? the spec isn't clear whether KAG should account for it */
2003 /* NOTE: kag_size may be any integer between 1 - 2^10 */
2004 int64_t ret = (position / kag_size) * kag_size;
2005 return ret == position ? ret : ret + kag_size;
2006}
2007
2008static inline void compute_partition_essence_offset(AVFormatContext *s,
2009 MXFContext *mxf,
2010 KLVPacket *klv)
2011{
2012 MXFPartition *cur_part = mxf->current_partition;
2013 /* for OP1a we compute essence_offset
2014 * for OPAtom we point essence_offset after the KL
2015 * (usually op1a_essence_offset + 20 or 25)
2016 * TODO: for OP1a we could eliminate this entire if statement, always
2017 * stopping parsing at op1a_essence_offset
2018 * for OPAtom we still need the actual essence_offset though
2019 * (the KL's length can vary)
2020 */
2021 int64_t op1a_essence_offset =
2022 round_to_kag(cur_part->this_partition + cur_part->pack_length,
2023 cur_part->kag_size) +
2024 round_to_kag(cur_part->header_byte_count, cur_part->kag_size) +
2025 round_to_kag(cur_part->index_byte_count, cur_part->kag_size);
2026
2027 if (mxf->op == OPAtom) {
2028 /* point essence_offset to the actual data
2029 * OPAtom has all the essence in one big KLV
2030 */
2031 cur_part->essence_offset = avio_tell(s->pb);
2032 cur_part->essence_length = klv->length;
2033 } else {
2034 /* NOTE: op1a_essence_offset may be less than to klv.offset
2035 * (C0023S01.mxf) */
2036 cur_part->essence_offset = op1a_essence_offset;
2037 }
2038}
2039
36ef5369 2040static int is_pcm(enum AVCodecID codec_id)
c65642d3
TH
2041{
2042 /* we only care about "normal" PCM codecs until we get samples */
36ef5369 2043 return codec_id >= AV_CODEC_ID_PCM_S16LE && codec_id < AV_CODEC_ID_PCM_S24DAUD;
c65642d3
TH
2044}
2045
2046/**
2047 * Deal with the case where for some audio atoms EditUnitByteCount is
2048 * very small (2, 4..). In those cases we should read more than one
2049 * sample per call to mxf_read_packet().
2050 */
2051static void mxf_handle_small_eubc(AVFormatContext *s)
2052{
2053 MXFContext *mxf = s->priv_data;
2054
2055 /* assuming non-OPAtom == frame wrapped
2056 * no sane writer would wrap 2 byte PCM packets with 20 byte headers.. */
2057 if (mxf->op != OPAtom)
2058 return;
2059
2060 /* expect PCM with exactly one index table segment and a small (< 32) EUBC */
2061 if (s->nb_streams != 1 ||
9200514a
AK
2062 s->streams[0]->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
2063 !is_pcm(s->streams[0]->codecpar->codec_id) ||
c65642d3
TH
2064 mxf->nb_index_tables != 1 ||
2065 mxf->index_tables[0].nb_segments != 1 ||
2066 mxf->index_tables[0].segments[0]->edit_unit_byte_count >= 32)
2067 return;
2068
2069 /* arbitrarily default to 48 kHz PAL audio frame size */
2070 /* TODO: We could compute this from the ratio between the audio
2071 * and video edit rates for 48 kHz NTSC we could use the
2072 * 1802-1802-1802-1802-1801 pattern. */
2073 mxf->edit_units_per_packet = 1920;
2074}
2075
f06f6daa
PM
2076static void mxf_read_random_index_pack(AVFormatContext *s)
2077{
2078 MXFContext *mxf = s->priv_data;
2079 uint32_t length;
2080 int64_t file_size;
2081 KLVPacket klv;
2082
83548fe8 2083 if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL))
f06f6daa
PM
2084 return;
2085
2086 file_size = avio_size(s->pb);
2087 avio_seek(s->pb, file_size - 4, SEEK_SET);
2088 length = avio_rb32(s->pb);
2089 if (length <= 32 || length >= FFMIN(file_size, INT_MAX))
2090 goto end;
2091 avio_seek(s->pb, file_size - length, SEEK_SET);
2092 if (klv_read_packet(&klv, s->pb) < 0 ||
2093 !IS_KLV_KEY(klv.key, mxf_random_index_pack_key) ||
2094 klv.length != length - 20)
2095 goto end;
2096
2097 avio_skip(s->pb, klv.length - 12);
2098 mxf->last_partition = avio_rb64(s->pb);
2099
2100end:
2101 avio_seek(s->pb, mxf->run_in, SEEK_SET);
2102}
2103
6e9651d1 2104static int mxf_read_header(AVFormatContext *s)
d09ea6ba
BC
2105{
2106 MXFContext *mxf = s->priv_data;
2107 KLVPacket klv;
3cb33fbe 2108 int64_t essence_offset = 0;
f028d4d1 2109 int ret;
d09ea6ba 2110
775d3b4a 2111 mxf->last_forward_tell = INT64_MAX;
c65642d3 2112 mxf->edit_units_per_packet = 1;
775d3b4a 2113
d09ea6ba
BC
2114 if (!mxf_read_sync(s->pb, mxf_header_partition_pack_key, 14)) {
2115 av_log(s, AV_LOG_ERROR, "could not find header partition pack key\n");
bcd5d979 2116 return AVERROR_INVALIDDATA;
d09ea6ba 2117 }
6b4aa5da 2118 avio_seek(s->pb, -14, SEEK_CUR);
d09ea6ba 2119 mxf->fc = s;
775d3b4a
TH
2120 mxf->run_in = avio_tell(s->pb);
2121
f06f6daa
PM
2122 mxf_read_random_index_pack(s);
2123
66e5b1df 2124 while (!s->pb->eof_reached) {
f06f6daa 2125
d09ea6ba
BC
2126 const MXFMetadataReadTableEntry *metadata;
2127
775d3b4a
TH
2128 if (klv_read_packet(&klv, s->pb) < 0) {
2129 /* EOF - seek to previous partition or stop */
2130 if(mxf_parse_handle_partition_or_eof(mxf) <= 0)
2131 break;
2132 else
2133 continue;
2134 }
2135
d09ea6ba 2136 PRINT_KEY(s, "read header", klv.key);
1a3eb042 2137 av_log(s, AV_LOG_TRACE, "size %"PRIu64" offset %#"PRIx64"\n", klv.length, klv.offset);
d09ea6ba 2138 if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key) ||
775d3b4a 2139 IS_KLV_KEY(klv.key, mxf_essence_element_key) ||
1f5f8b26 2140 IS_KLV_KEY(klv.key, mxf_avid_essence_element_key) ||
775d3b4a 2141 IS_KLV_KEY(klv.key, mxf_system_item_key)) {
687e2fde
TH
2142
2143 if (!mxf->current_partition) {
2144 av_log(mxf->fc, AV_LOG_ERROR,
2145 "found essence prior to first PartitionPack\n");
2146 return AVERROR_INVALIDDATA;
2147 }
2148
21cc4b33
TH
2149 if (!mxf->current_partition->essence_offset) {
2150 compute_partition_essence_offset(s, mxf, &klv);
2151 }
2152
3cb33fbe
TH
2153 if (!essence_offset)
2154 essence_offset = klv.offset;
775d3b4a
TH
2155
2156 /* seek to footer, previous partition or stop */
2157 if (mxf_parse_handle_essence(mxf) <= 0)
2158 break;
edb50856 2159 continue;
775d3b4a
TH
2160 } else if (!memcmp(klv.key, mxf_header_partition_pack_key, 13) &&
2161 klv.key[13] >= 2 && klv.key[13] <= 4 && mxf->current_partition) {
2162 /* next partition pack - keep going, seek to previous partition or stop */
2163 if(mxf_parse_handle_partition_or_eof(mxf) <= 0)
2164 break;
83728d2d
TH
2165 else if (mxf->parsing_backward)
2166 continue;
2167 /* we're still parsing forward. proceed to parsing this partition pack */
edb50856 2168 }
d09ea6ba
BC
2169
2170 for (metadata = mxf_metadata_read_table; metadata->read; metadata++) {
2171 if (IS_KLV_KEY(klv.key, metadata->key)) {
39bb30f6
RD
2172 int res;
2173 if (klv.key[5] == 0x53) {
2174 res = mxf_read_local_tags(mxf, &klv, metadata->read, metadata->ctx_size, metadata->type);
0662eea6
PN
2175 } else {
2176 uint64_t next = avio_tell(s->pb) + klv.length;
21cc4b33 2177 res = metadata->read(mxf, s->pb, 0, klv.length, klv.key, klv.offset);
11800c8c
TH
2178
2179 /* only seek forward, else this can loop for a long time */
2180 if (avio_tell(s->pb) > next) {
2181 av_log(s, AV_LOG_ERROR, "read past end of KLV @ %#"PRIx64"\n",
2182 klv.offset);
2183 return AVERROR_INVALIDDATA;
2184 }
2185
0662eea6
PN
2186 avio_seek(s->pb, next, SEEK_SET);
2187 }
39bb30f6 2188 if (res < 0) {
d09ea6ba 2189 av_log(s, AV_LOG_ERROR, "error reading header metadata\n");
bcd5d979 2190 return res;
d09ea6ba
BC
2191 }
2192 break;
304089ac
LB
2193 } else {
2194 av_log(s, AV_LOG_VERBOSE, "Dark key " PRIxUID "\n",
2195 UID_ARG(klv.key));
d09ea6ba
BC
2196 }
2197 }
2198 if (!metadata->read)
45a8a02a 2199 avio_skip(s->pb, klv.length);
d09ea6ba 2200 }
775d3b4a 2201 /* FIXME avoid seek */
3cb33fbe 2202 if (!essence_offset) {
775d3b4a
TH
2203 av_log(s, AV_LOG_ERROR, "no essence\n");
2204 return AVERROR_INVALIDDATA;
2205 }
3cb33fbe 2206 avio_seek(s->pb, essence_offset, SEEK_SET);
21cc4b33
TH
2207
2208 mxf_compute_essence_containers(mxf);
2209
f028d4d1
JG
2210 /* we need to do this before computing the index tables
2211 * to be able to fill in zero IndexDurations with st->duration */
2212 if ((ret = mxf_parse_structural_metadata(mxf)) < 0)
2213 return ret;
2214
2215 if ((ret = mxf_compute_index_tables(mxf)) < 0)
2216 return ret;
2217
2218 if (mxf->nb_index_tables > 1) {
2219 /* TODO: look up which IndexSID to use via EssenceContainerData */
2220 av_log(mxf->fc, AV_LOG_INFO, "got %i index tables - only the first one (IndexSID %i) will be used\n",
2221 mxf->nb_index_tables, mxf->index_tables[0].index_sid);
2222 } else if (mxf->nb_index_tables == 0 && mxf->op == OPAtom) {
2223 av_log(mxf->fc, AV_LOG_ERROR, "cannot demux OPAtom without an index\n");
2224 return AVERROR_INVALIDDATA;
2225 }
2226
c65642d3
TH
2227 mxf_handle_small_eubc(s);
2228
f028d4d1 2229 return 0;
d09ea6ba
BC
2230}
2231
f028d4d1 2232/**
1fadf53e
TH
2233 * Sets mxf->current_edit_unit based on what offset we're currently at.
2234 * @return next_ofs if OK, <0 on error
f028d4d1 2235 */
1fadf53e 2236static int64_t mxf_set_current_edit_unit(MXFContext *mxf, int64_t current_offset)
f028d4d1 2237{
1fadf53e 2238 int64_t last_ofs = -1, next_ofs = -1;
f028d4d1
JG
2239 MXFIndexTable *t = &mxf->index_tables[0];
2240
29fc8f50
TH
2241 /* this is called from the OP1a demuxing logic, which means there
2242 * may be no index tables */
2243 if (mxf->nb_index_tables <= 0)
1fadf53e 2244 return -1;
29fc8f50 2245
1fadf53e
TH
2246 /* find mxf->current_edit_unit so that the next edit unit starts ahead
2247 * of current_offset */
9123950b 2248 while (mxf->current_edit_unit >= 0) {
1fadf53e
TH
2249 if (mxf_edit_unit_absolute_offset(mxf, t, mxf->current_edit_unit + 1,
2250 NULL, &next_ofs, 0) < 0)
2251 return -1;
f028d4d1 2252
e352c96c
TH
2253 if (next_ofs <= last_ofs) {
2254 /* large next_ofs didn't change or current_edit_unit wrapped
2255 * around this fixes the infinite loop on zzuf3.mxf */
2256 av_log(mxf->fc, AV_LOG_ERROR,
2257 "next_ofs didn't change. not deriving packet timestamps\n");
1fadf53e 2258 return -1;
e352c96c
TH
2259 }
2260
1fadf53e 2261 if (next_ofs > current_offset)
f028d4d1
JG
2262 break;
2263
e352c96c 2264 last_ofs = next_ofs;
f028d4d1
JG
2265 mxf->current_edit_unit++;
2266 }
2267
1fadf53e
TH
2268 /* not checking mxf->current_edit_unit >= t->nb_ptses here since CBR files
2269 * may lack IndexEntryArrays */
2270 if (mxf->current_edit_unit < 0)
2271 return -1;
f028d4d1 2272
1fadf53e 2273 return next_ofs;
f028d4d1
JG
2274}
2275
5b930092
MB
2276static int mxf_compute_sample_count(MXFContext *mxf, int stream_index,
2277 uint64_t *sample_count)
2278{
2279 int i, total = 0, size = 0;
2280 AVStream *st = mxf->fc->streams[stream_index];
2281 MXFTrack *track = st->priv_data;
2282 AVRational time_base = av_inv_q(track->edit_rate);
2283 AVRational sample_rate = av_inv_q(st->time_base);
2284 const MXFSamplesPerFrame *spf = NULL;
2285
2286 if ((sample_rate.num / sample_rate.den) == 48000)
2287 spf = ff_mxf_get_samples_per_frame(mxf->fc, time_base);
2288 if (!spf) {
2289 int remainder = (sample_rate.num * time_base.num) %
2290 (time_base.den * sample_rate.den);
2291 *sample_count = av_q2d(av_mul_q((AVRational){mxf->current_edit_unit, 1},
2292 av_mul_q(sample_rate, time_base)));
2293 if (remainder)
2294 av_log(mxf->fc, AV_LOG_WARNING,
2295 "seeking detected on stream #%d with time base (%d/%d) and "
2296 "sample rate (%d/%d), audio pts won't be accurate.\n",
2297 stream_index, time_base.num, time_base.den,
2298 sample_rate.num, sample_rate.den);
2299 return 0;
2300 }
2301
2302 while (spf->samples_per_frame[size]) {
2303 total += spf->samples_per_frame[size];
2304 size++;
2305 }
2306
2307 if (!size)
2308 return 0;
2309
2310 *sample_count = (mxf->current_edit_unit / size) * (uint64_t)total;
2311 for (i = 0; i < mxf->current_edit_unit % size; i++) {
2312 *sample_count += spf->samples_per_frame[i];
2313 }
2314
2315 return 0;
2316}
2317
9200514a 2318static int mxf_set_audio_pts(MXFContext *mxf, AVCodecParameters *par,
5b930092
MB
2319 AVPacket *pkt)
2320{
2321 MXFTrack *track = mxf->fc->streams[pkt->stream_index]->priv_data;
9200514a 2322 int64_t bits_per_sample = par->bits_per_coded_sample;
369380e1
LB
2323
2324 if (!bits_per_sample)
9200514a 2325 bits_per_sample = av_get_bits_per_sample(par->codec_id);
5b930092
MB
2326
2327 pkt->pts = track->sample_count;
2328
9200514a 2329 if (par->channels <= 0 || par->channels * bits_per_sample < 8)
5b930092
MB
2330 return AVERROR_INVALIDDATA;
2331
9200514a 2332 track->sample_count += pkt->size / (par->channels * bits_per_sample / 8);
5b930092
MB
2333 return 0;
2334}
2335
f028d4d1
JG
2336static int mxf_read_packet_old(AVFormatContext *s, AVPacket *pkt)
2337{
2338 KLVPacket klv;
1fadf53e 2339 MXFContext *mxf = s->priv_data;
5b977c1d 2340 int ret;
f028d4d1
JG
2341
2342 while (!s->pb->eof_reached) {
5b977c1d
LB
2343 if ((ret = klv_read_packet(&klv, s->pb)) < 0)
2344 return ret;
f028d4d1 2345 PRINT_KEY(s, "read packet", klv.key);
1a3eb042 2346 av_log(s, AV_LOG_TRACE, "size %"PRIu64" offset %#"PRIx64"\n", klv.length, klv.offset);
f028d4d1 2347 if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key)) {
5b977c1d
LB
2348 ret = mxf_decrypt_triplet(s, pkt, &klv);
2349 if (ret < 0) {
f028d4d1 2350 av_log(s, AV_LOG_ERROR, "invalid encoded triplet\n");
5b977c1d 2351 return ret;
f028d4d1
JG
2352 }
2353 return 0;
2354 }
2355 if (IS_KLV_KEY(klv.key, mxf_essence_element_key) ||
2356 IS_KLV_KEY(klv.key, mxf_avid_essence_element_key)) {
2357 int index = mxf_get_stream_index(s, &klv);
1fadf53e 2358 int64_t next_ofs, next_klv;
34ca5ae5
TH
2359 AVStream *st;
2360 MXFTrack *track;
9200514a 2361 AVCodecParameters *par;
1fadf53e 2362
f028d4d1 2363 if (index < 0) {
d92024f1
DB
2364 av_log(s, AV_LOG_ERROR,
2365 "error getting stream index %"PRIu32"\n",
2366 AV_RB32(klv.key + 12));
f028d4d1
JG
2367 goto skip;
2368 }
34ca5ae5
TH
2369
2370 st = s->streams[index];
2371 track = st->priv_data;
2372
f028d4d1
JG
2373 if (s->streams[index]->discard == AVDISCARD_ALL)
2374 goto skip;
1fadf53e
TH
2375
2376 next_klv = avio_tell(s->pb) + klv.length;
2377 next_ofs = mxf_set_current_edit_unit(mxf, klv.offset);
2378
2379 if (next_ofs >= 0 && next_klv > next_ofs) {
2380 /* if this check is hit then it's possible OPAtom was treated
2381 * as OP1a truncate the packet since it's probably very large
2382 * (>2 GiB is common) */
1ecdf891
DB
2383 avpriv_request_sample(s,
2384 "OPAtom misinterpreted as OP1a?"
2385 "KLV for edit unit %i extending into "
2386 "next edit unit",
1fadf53e
TH
2387 mxf->current_edit_unit);
2388 klv.length = next_ofs - avio_tell(s->pb);
2389 }
2390
f028d4d1
JG
2391 /* check for 8 channels AES3 element */
2392 if (klv.key[12] == 0x06 && klv.key[13] == 0x01 && klv.key[14] == 0x10) {
5b977c1d
LB
2393 ret = mxf_get_d10_aes3_packet(s->pb, s->streams[index],
2394 pkt, klv.length);
2395 if (ret < 0) {
f028d4d1 2396 av_log(s, AV_LOG_ERROR, "error reading D-10 aes3 frame\n");
5b977c1d 2397 return ret;
f028d4d1
JG
2398 }
2399 } else {
5b977c1d 2400 ret = av_get_packet(s->pb, pkt, klv.length);
f028d4d1
JG
2401 if (ret < 0)
2402 return ret;
2403 }
2404 pkt->stream_index = index;
2405 pkt->pos = klv.offset;
2406
9200514a 2407 par = s->streams[index]->codecpar;
5b930092 2408
9200514a 2409 if (par->codec_type == AVMEDIA_TYPE_VIDEO && next_ofs >= 0) {
1fadf53e
TH
2410 /* mxf->current_edit_unit good - see if we have an
2411 * index table to derive timestamps from */
2412 MXFIndexTable *t = &mxf->index_tables[0];
2413
2414 if (mxf->nb_index_tables >= 1 &&
2415 mxf->current_edit_unit < t->nb_ptses) {
2416 pkt->dts = mxf->current_edit_unit + t->first_dts;
2417 pkt->pts = t->ptses[mxf->current_edit_unit];
34ca5ae5
TH
2418 } else if (track->intra_only) {
2419 /* intra-only -> PTS = EditUnit.
2420 * let utils.c figure out DTS since it can be
2421 * < PTS if low_delay = 0 (Sony IMX30) */
2422 pkt->pts = mxf->current_edit_unit;
1fadf53e 2423 }
9200514a
AK
2424 } else if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
2425 ret = mxf_set_audio_pts(mxf, par, pkt);
5b930092
MB
2426 if (ret < 0)
2427 return ret;
1fadf53e
TH
2428 }
2429
2430 /* seek for truncated packets */
2431 avio_seek(s->pb, next_klv, SEEK_SET);
f028d4d1
JG
2432
2433 return 0;
2434 } else
2435 skip:
2436 avio_skip(s->pb, klv.length);
2437 }
2438 return AVERROR_EOF;
2439}
2440
2441static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
2442{
2443 MXFContext *mxf = s->priv_data;
2444 int ret, size;
2445 int64_t ret64, pos, next_pos;
2446 AVStream *st;
2447 MXFIndexTable *t;
c65642d3 2448 int edit_units;
f028d4d1
JG
2449
2450 if (mxf->op != OPAtom)
2451 return mxf_read_packet_old(s, pkt);
2452
2453 /* OPAtom - clip wrapped demuxing */
29fc8f50 2454 /* NOTE: mxf_read_header() makes sure nb_index_tables > 0 for OPAtom */
f028d4d1
JG
2455 st = s->streams[0];
2456 t = &mxf->index_tables[0];
2457
2458 if (mxf->current_edit_unit >= st->duration)
2459 return AVERROR_EOF;
2460
c65642d3
TH
2461 edit_units = FFMIN(mxf->edit_units_per_packet, st->duration - mxf->current_edit_unit);
2462
f028d4d1
JG
2463 if ((ret = mxf_edit_unit_absolute_offset(mxf, t, mxf->current_edit_unit, NULL, &pos, 1)) < 0)
2464 return ret;
2465
2466 /* compute size by finding the next edit unit or the end of the essence container
2467 * not pretty, but it works */
c65642d3 2468 if ((ret = mxf_edit_unit_absolute_offset(mxf, t, mxf->current_edit_unit + edit_units, NULL, &next_pos, 0)) < 0 &&
f028d4d1
JG
2469 (next_pos = mxf_essence_container_end(mxf, t->body_sid)) <= 0) {
2470 av_log(s, AV_LOG_ERROR, "unable to compute the size of the last packet\n");
2471 return AVERROR_INVALIDDATA;
2472 }
2473
2474 if ((size = next_pos - pos) <= 0) {
2475 av_log(s, AV_LOG_ERROR, "bad size: %i\n", size);
2476 return AVERROR_INVALIDDATA;
2477 }
2478
2479 if ((ret64 = avio_seek(s->pb, pos, SEEK_SET)) < 0)
2480 return ret64;
2481
5ebef79a
AK
2482 if ((ret = av_get_packet(s->pb, pkt, size)) != size)
2483 return ret < 0 ? ret : AVERROR_EOF;
f028d4d1 2484
5b930092
MB
2485 pkt->stream_index = 0;
2486
9200514a 2487 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && t->ptses &&
f028d4d1
JG
2488 mxf->current_edit_unit >= 0 && mxf->current_edit_unit < t->nb_ptses) {
2489 pkt->dts = mxf->current_edit_unit + t->first_dts;
2490 pkt->pts = t->ptses[mxf->current_edit_unit];
9200514a
AK
2491 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
2492 int ret = mxf_set_audio_pts(mxf, st->codecpar, pkt);
5b930092
MB
2493 if (ret < 0)
2494 return ret;
f028d4d1
JG
2495 }
2496
c65642d3 2497 mxf->current_edit_unit += edit_units;
f028d4d1
JG
2498
2499 return 0;
2500}
2501
2502
d09ea6ba
BC
2503static int mxf_read_close(AVFormatContext *s)
2504{
2505 MXFContext *mxf = s->priv_data;
682b6db7 2506 MXFIndexTableSegment *seg;
fc857294 2507 int i;
d09ea6ba
BC
2508
2509 av_freep(&mxf->packages_refs);
8be080ae
BC
2510
2511 for (i = 0; i < s->nb_streams; i++)
2512 s->streams[i]->priv_data = NULL;
2513
d09ea6ba
BC
2514 for (i = 0; i < mxf->metadata_sets_count; i++) {
2515 switch (mxf->metadata_sets[i]->type) {
b37effdc
JG
2516 case Descriptor:
2517 av_freep(&((MXFDescriptor *)mxf->metadata_sets[i])->extradata);
2518 break;
d09ea6ba
BC
2519 case MultipleDescriptor:
2520 av_freep(&((MXFDescriptor *)mxf->metadata_sets[i])->sub_descriptors_refs);
2521 break;
2522 case Sequence:
2523 av_freep(&((MXFSequence *)mxf->metadata_sets[i])->structural_components_refs);
2524 break;
2525 case SourcePackage:
2526 case MaterialPackage:
2527 av_freep(&((MXFPackage *)mxf->metadata_sets[i])->tracks_refs);
2528 break;
682b6db7
JG
2529 case IndexTableSegment:
2530 seg = (MXFIndexTableSegment *)mxf->metadata_sets[i];
21cc4b33 2531 av_freep(&seg->temporal_offset_entries);
682b6db7
JG
2532 av_freep(&seg->flag_entries);
2533 av_freep(&seg->stream_offset_entries);
682b6db7 2534 break;
d09ea6ba
BC
2535 default:
2536 break;
2537 }
2538 av_freep(&mxf->metadata_sets[i]);
2539 }
d32b3f40 2540 av_freep(&mxf->partitions);
d09ea6ba
BC
2541 av_freep(&mxf->metadata_sets);
2542 av_freep(&mxf->aesc);
2543 av_freep(&mxf->local_tags);
f028d4d1
JG
2544
2545 for (i = 0; i < mxf->nb_index_tables; i++) {
2546 av_freep(&mxf->index_tables[i].segments);
50a3f9a4 2547 av_freep(&mxf->index_tables[i].ptses);
f028d4d1
JG
2548 av_freep(&mxf->index_tables[i].fake_index);
2549 }
2550 av_freep(&mxf->index_tables);
2551
d09ea6ba
BC
2552 return 0;
2553}
2554
2555static int mxf_probe(AVProbeData *p) {
2556 uint8_t *bufp = p->buf;
2557 uint8_t *end = p->buf + p->buf_size;
2558
2559 if (p->buf_size < sizeof(mxf_header_partition_pack_key))
2560 return 0;
2561
2562 /* Must skip Run-In Sequence and search for MXF header partition pack key SMPTE 377M 5.5 */
2563 end -= sizeof(mxf_header_partition_pack_key);
2564 for (; bufp < end; bufp++) {
2565 if (IS_KLV_KEY(bufp, mxf_header_partition_pack_key))
2566 return AVPROBE_SCORE_MAX;
2567 }
2568 return 0;
2569}
2570
2571/* rudimentary byte seek */
2572/* XXX: use MXF Index */
2573static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
2574{
2575 AVStream *st = s->streams[stream_index];
2576 int64_t seconds;
f028d4d1
JG
2577 MXFContext* mxf = s->priv_data;
2578 int64_t seekpos;
5b930092 2579 int i, ret;
f028d4d1 2580 MXFIndexTable *t;
5b930092
MB
2581 MXFTrack *source_track = st->priv_data;
2582
2583 /* if audio then truncate sample_time to EditRate */
9200514a 2584 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
5b930092
MB
2585 sample_time = av_rescale_q(sample_time, st->time_base,
2586 av_inv_q(source_track->edit_rate));
d09ea6ba 2587
c84cce5a 2588 if (mxf->nb_index_tables <= 0) {
d09ea6ba 2589 if (!s->bit_rate)
bcd5d979 2590 return AVERROR_INVALIDDATA;
d09ea6ba
BC
2591 if (sample_time < 0)
2592 sample_time = 0;
2593 seconds = av_rescale(sample_time, st->time_base.num, st->time_base.den);
3359246d 2594
42f91322
LB
2595 seekpos = avio_seek(s->pb, (s->bit_rate * seconds) >> 3, SEEK_SET);
2596 if (seekpos < 0)
2597 return seekpos;
2598
a2faa951 2599 ff_update_cur_dts(s, st, sample_time);
951d8190 2600 mxf->current_edit_unit = sample_time;
f028d4d1
JG
2601 } else {
2602 t = &mxf->index_tables[0];
2603
2604 /* clamp above zero, else ff_index_search_timestamp() returns negative
2605 * this also means we allow seeking before the start */
2606 sample_time = FFMAX(sample_time, 0);
2607
2608 if (t->fake_index) {
2609 /* behave as if we have a proper index */
2610 if ((sample_time = ff_index_search_timestamp(t->fake_index, t->nb_ptses, sample_time, flags)) < 0)
2611 return sample_time;
2612 } else {
2613 /* no IndexEntryArray (one or more CBR segments)
2614 * make sure we don't seek past the end */
5b930092 2615 sample_time = FFMIN(sample_time, source_track->original_duration - 1);
f028d4d1
JG
2616 }
2617
2618 if ((ret = mxf_edit_unit_absolute_offset(mxf, t, sample_time, &sample_time, &seekpos, 1)) << 0)
2619 return ret;
2620
2621 ff_update_cur_dts(s, st, sample_time);
2622 mxf->current_edit_unit = sample_time;
2623 avio_seek(s->pb, seekpos, SEEK_SET);
2624 }
5b930092
MB
2625
2626 // Update all tracks sample count
2627 for (i = 0; i < s->nb_streams; i++) {
2628 AVStream *cur_st = s->streams[i];
2629 MXFTrack *cur_track = cur_st->priv_data;
2630 uint64_t current_sample_count = 0;
9200514a 2631 if (cur_st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5b930092
MB
2632 ret = mxf_compute_sample_count(mxf, i, &current_sample_count);
2633 if (ret < 0)
2634 return ret;
2635
2636 cur_track->sample_count = current_sample_count;
2637 }
2638 }
d09ea6ba
BC
2639 return 0;
2640}
2641
c6610a21 2642AVInputFormat ff_mxf_demuxer = {
dfc2c4d9 2643 .name = "mxf",
0177b7d2 2644 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
dfc2c4d9
AK
2645 .priv_data_size = sizeof(MXFContext),
2646 .read_probe = mxf_probe,
2647 .read_header = mxf_read_header,
2648 .read_packet = mxf_read_packet,
2649 .read_close = mxf_read_close,
2650 .read_seek = mxf_read_seek,
d09ea6ba 2651};