libavformat/mxfdec.c File Reference

#include "libavutil/aes.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "mxf.h"

Go to the source code of this file.

Data Structures

struct  MXFCryptoContext
struct  MXFStructuralComponent
struct  MXFSequence
struct  MXFTrack
struct  MXFDescriptor
struct  MXFIndexTableSegment
struct  MXFPackage
struct  MXFMetadataSet
struct  MXFContext
struct  MXFMetadataReadTableEntry

Defines

#define IS_KLV_KEY(x, y)   (!memcmp(x, y, sizeof(y)))

Enumerations

enum  MXFWrappingScheme { Frame, Clip }

Functions

static int64_t klv_decode_ber_length (ByteIOContext *pb)
static int mxf_read_sync (ByteIOContext *pb, const uint8_t *key, unsigned size)
static int klv_read_packet (KLVPacket *klv, ByteIOContext *pb)
static int mxf_get_stream_index (AVFormatContext *s, KLVPacket *klv)
static int mxf_get_d10_aes3_packet (ByteIOContext *pb, AVStream *st, AVPacket *pkt, int64_t length)
static int mxf_decrypt_triplet (AVFormatContext *s, AVPacket *pkt, KLVPacket *klv)
static int mxf_read_packet (AVFormatContext *s, AVPacket *pkt)
static int mxf_read_primer_pack (MXFContext *mxf)
static int mxf_add_metadata_set (MXFContext *mxf, void *metadata_set)
static int mxf_read_cryptographic_context (MXFCryptoContext *cryptocontext, ByteIOContext *pb, int tag, int size, UID uid)
static int mxf_read_content_storage (MXFContext *mxf, ByteIOContext *pb, int tag)
static int mxf_read_source_clip (MXFStructuralComponent *source_clip, ByteIOContext *pb, int tag)
static int mxf_read_material_package (MXFPackage *package, ByteIOContext *pb, int tag)
static int mxf_read_track (MXFTrack *track, ByteIOContext *pb, int tag)
static int mxf_read_sequence (MXFSequence *sequence, ByteIOContext *pb, int tag)
static int mxf_read_source_package (MXFPackage *package, ByteIOContext *pb, int tag)
static int mxf_read_index_table_segment (MXFIndexTableSegment *segment, ByteIOContext *pb, int tag)
static void mxf_read_pixel_layout (ByteIOContext *pb, MXFDescriptor *descriptor)
static int mxf_read_generic_descriptor (MXFDescriptor *descriptor, ByteIOContext *pb, int tag, int size, UID uid)
static int mxf_match_uid (const UID key, const UID uid, int len)
static const MXFCodecUL * mxf_get_codec_ul (const MXFCodecUL *uls, UID *uid)
static void * mxf_resolve_strong_ref (MXFContext *mxf, UID *strong_ref, enum MXFMetadataSetType type)
static int mxf_parse_structural_metadata (MXFContext *mxf)
static int mxf_read_local_tags (MXFContext *mxf, KLVPacket *klv, int(*read_child)(), int ctx_size, enum MXFMetadataSetType type)
static int mxf_read_header (AVFormatContext *s, AVFormatParameters *ap)
static int mxf_read_close (AVFormatContext *s)
static int mxf_probe (AVProbeData *p)
static int mxf_read_seek (AVFormatContext *s, int stream_index, int64_t sample_time, int flags)

Variables

static const uint8_t mxf_header_partition_pack_key [] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 }
static const uint8_t mxf_essence_element_key [] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 }
static const uint8_t mxf_klv_key [] = { 0x06,0x0e,0x2b,0x34 }
static const uint8_t mxf_crypto_source_container_ul [] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x02,0x02,0x00,0x00,0x00 }
static const uint8_t mxf_encrypted_triplet_key [] = { 0x06,0x0e,0x2b,0x34,0x02,0x04,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x7e,0x01,0x00 }
static const uint8_t mxf_encrypted_essence_container [] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0b,0x01,0x00 }
static const uint8_t mxf_sony_mpeg4_extradata [] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0e,0x06,0x06,0x02,0x02,0x01,0x00,0x00 }
static const MXFCodecUL mxf_essence_container_uls []
static const
MXFMetadataReadTableEntry 		mxf_metadata_read_table []
AVInputFormat mxf_demuxer

Define Documentation

#define IS_KLV_KEY ( x,
y   )     (!memcmp(x, y, sizeof(y)))

Definition at line 159 of file mxfdec.c.

Referenced by mxf_decrypt_triplet(), mxf_parse_structural_metadata(), mxf_probe(), mxf_read_cryptographic_context(), mxf_read_generic_descriptor(), mxf_read_header(), and mxf_read_packet().

Enumeration Type Documentation

enum MXFWrappingScheme

Enumerator:
Frame 
Clip 

Definition at line 137 of file mxfdec.c.

Function Documentation

static int64_t klv_decode_ber_length ( ByteIOContext *  pb  )  [static]

Definition at line 161 of file mxfdec.c.

Referenced by klv_read_packet(), and mxf_decrypt_triplet().

static int klv_read_packet ( KLVPacket *  klv,
ByteIOContext *  pb 
) [static]

Definition at line 189 of file mxfdec.c.

Referenced by mxf_read_header(), and mxf_read_packet().

static int mxf_add_metadata_set ( MXFContext *  mxf,
void *  metadata_set 
) [static]

Definition at line 365 of file mxfdec.c.

Referenced by mxf_read_local_tags().

static int mxf_decrypt_triplet ( AVFormatContext *  s,
AVPacket *  pkt,
KLVPacket *  klv 
) [static]

Definition at line 243 of file mxfdec.c.

Referenced by mxf_read_packet().

static const MXFCodecUL* mxf_get_codec_ul ( const MXFCodecUL *  uls,
UID *  uid 
) [static]

Definition at line 619 of file mxfdec.c.

Referenced by mxf_parse_structural_metadata().

static int mxf_get_d10_aes3_packet ( ByteIOContext *  pb,
AVStream *  st,
AVPacket *  pkt,
int64_t  length 
) [static]

Definition at line 215 of file mxfdec.c.

Referenced by mxf_read_packet().

static int mxf_get_stream_index ( AVFormatContext *  s,
KLVPacket *  klv 
) [static]

Definition at line 200 of file mxfdec.c.

Referenced by mxf_decrypt_triplet(), and mxf_read_packet().

static int mxf_match_uid ( const UID  key,
const UID  uid,
int  len 
) [static]

Definition at line 609 of file mxfdec.c.

Referenced by mxf_get_codec_ul().

static int mxf_parse_structural_metadata ( MXFContext *  mxf  )  [static]

Definition at line 655 of file mxfdec.c.

Referenced by mxf_read_header().

static int mxf_probe ( AVProbeData *  p  )  [static]

Definition at line 970 of file mxfdec.c.

static int mxf_read_close ( AVFormatContext *  s  )  [static]

Definition at line 938 of file mxfdec.c.

static int mxf_read_content_storage ( MXFContext *  mxf,
ByteIOContext *  pb,
int  tag 
) [static]

Definition at line 384 of file mxfdec.c.

static int mxf_read_cryptographic_context ( MXFCryptoContext *  cryptocontext,
ByteIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 375 of file mxfdec.c.

static int mxf_read_generic_descriptor ( MXFDescriptor *  descriptor,
ByteIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 543 of file mxfdec.c.

static int mxf_read_header ( AVFormatContext *  s,
AVFormatParameters *  ap 
) [static]

Definition at line 897 of file mxfdec.c.

static int mxf_read_index_table_segment ( MXFIndexTableSegment *  segment,
ByteIOContext *  pb,
int  tag 
) [static]

Definition at line 507 of file mxfdec.c.

static int mxf_read_local_tags ( MXFContext *  mxf,
KLVPacket *  klv,
int(*)()  read_child,
int  ctx_size,
enum MXFMetadataSetType  type 
) [static]

Definition at line 856 of file mxfdec.c.

Referenced by mxf_read_header().

static int mxf_read_material_package ( MXFPackage *  package,
ByteIOContext *  pb,
int  tag 
) [static]

Definition at line 422 of file mxfdec.c.

static int mxf_read_packet ( AVFormatContext *  s,
AVPacket *  pkt 
) [static]

Definition at line 302 of file mxfdec.c.

static void mxf_read_pixel_layout ( ByteIOContext *  pb,
MXFDescriptor *  descriptor 
) [static]

Definition at line 520 of file mxfdec.c.

Referenced by mxf_read_generic_descriptor().

static int mxf_read_primer_pack ( MXFContext *  mxf  )  [static]

Definition at line 345 of file mxfdec.c.

static int mxf_read_seek ( AVFormatContext *  s,
int  stream_index,
int64_t  sample_time,
int  flags 
) [static]

Definition at line 988 of file mxfdec.c.

static int mxf_read_sequence ( MXFSequence *  sequence,
ByteIOContext *  pb,
int  tag 
) [static]

Definition at line 459 of file mxfdec.c.

static int mxf_read_source_clip ( MXFStructuralComponent *  source_clip,
ByteIOContext *  pb,
int  tag 
) [static]

Definition at line 401 of file mxfdec.c.

static int mxf_read_source_package ( MXFPackage *  package,
ByteIOContext *  pb,
int  tag 
) [static]

Definition at line 482 of file mxfdec.c.

static int mxf_read_sync ( ByteIOContext *  pb,
const uint8_t *  key,
unsigned  size 
) [static]

Definition at line 176 of file mxfdec.c.

Referenced by klv_read_packet(), and mxf_read_header().

static int mxf_read_track ( MXFTrack *  track,
ByteIOContext *  pb,
int  tag 
) [static]

Definition at line 439 of file mxfdec.c.

static void* mxf_resolve_strong_ref ( MXFContext *  mxf,
UID *  strong_ref,
enum MXFMetadataSetType  type 
) [static]

Definition at line 629 of file mxfdec.c.

Referenced by mxf_parse_structural_metadata().

Variable Documentation

const uint8_t mxf_crypto_source_container_ul[] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x02,0x02,0x00,0x00,0x00 } [static]

Definition at line 154 of file mxfdec.c.

Referenced by mxf_read_cryptographic_context().

AVInputFormat mxf_demuxer

Initial value:

 {
    "mxf",
    NULL_IF_CONFIG_SMALL("Material eXchange Format"),
    sizeof(MXFContext),
    mxf_probe,
    mxf_read_header,
    mxf_read_packet,
    mxf_read_close,
    mxf_read_seek,
}

Definition at line 1003 of file mxfdec.c.

const uint8_t mxf_encrypted_essence_container[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0b,0x01,0x00 } [static]

Definition at line 156 of file mxfdec.c.

Referenced by mxf_parse_structural_metadata().

const uint8_t mxf_encrypted_triplet_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x04,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x7e,0x01,0x00 } [static]

Definition at line 155 of file mxfdec.c.

Referenced by mxf_read_header(), and mxf_read_packet().

const MXFCodecUL mxf_essence_container_uls[] [static]

Initial value:

 {
    
    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, 14, CODEC_ID_MPEG2VIDEO }, 
    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 }, 14,    CODEC_ID_DVVIDEO }, 
    
    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, 14, CODEC_ID_PCM_S16LE }, 
    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x40,0x01 }, 14,       CODEC_ID_MP2 }, 
    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, 14, CODEC_ID_PCM_S16LE }, 
    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },  0,      CODEC_ID_NONE },
}

Definition at line 644 of file mxfdec.c.

const uint8_t mxf_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 } [static]

Definition at line 151 of file mxfdec.c.

Referenced by mxf_decrypt_triplet(), mxf_get_stream_index(), mxf_read_header(), and mxf_read_packet().

const uint8_t mxf_header_partition_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 } [static]

Definition at line 150 of file mxfdec.c.

Referenced by mxf_probe(), and mxf_read_header().

const uint8_t mxf_klv_key[] = { 0x06,0x0e,0x2b,0x34 } [static]

Definition at line 152 of file mxfdec.c.

Referenced by klv_read_packet().

const MXFMetadataReadTableEntry mxf_metadata_read_table[] [static]

Initial value:

 {
    { { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x05,0x01,0x00 }, mxf_read_primer_pack },
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x18,0x00 }, mxf_read_content_storage, 0, AnyType },
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x37,0x00 }, mxf_read_source_package, sizeof(MXFPackage), SourcePackage },
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x36,0x00 }, mxf_read_material_package, sizeof(MXFPackage), MaterialPackage },
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x0F,0x00 }, mxf_read_sequence, sizeof(MXFSequence), Sequence },
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x11,0x00 }, mxf_read_source_clip, sizeof(MXFStructuralComponent), SourceClip },
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x44,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), MultipleDescriptor },
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, 
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, 
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x29,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, 
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, 
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, 
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, 
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3A,0x00 }, mxf_read_track, sizeof(MXFTrack), Track }, 
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3B,0x00 }, mxf_read_track, sizeof(MXFTrack), Track }, 
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x04,0x01,0x02,0x02,0x00,0x00 }, mxf_read_cryptographic_context, sizeof(MXFCryptoContext), CryptoContext },
    { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 }, mxf_read_index_table_segment, sizeof(MXFIndexTableSegment), IndexTableSegment },
    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL, 0, AnyType },
}

Definition at line 835 of file mxfdec.c.

const uint8_t mxf_sony_mpeg4_extradata[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0e,0x06,0x06,0x02,0x02,0x01,0x00,0x00 } [static]

Definition at line 157 of file mxfdec.c.

Referenced by mxf_read_generic_descriptor().

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