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)))

Typedefs

typedef int MXFMetadataReadFunc (void *arg, AVIOContext *pb, int tag, int size, UID uid)

Enumerations

enum  MXFWrappingScheme { Frame, Clip }

Functions

static int64_t klv_decode_ber_length (AVIOContext *pb)
static int mxf_read_sync (AVIOContext *pb, const uint8_t *key, unsigned size)
static int klv_read_packet (KLVPacket *klv, AVIOContext *pb)
static int mxf_get_stream_index (AVFormatContext *s, KLVPacket *klv)
static int mxf_get_d10_aes3_packet (AVIOContext *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 (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static int mxf_add_metadata_set (MXFContext *mxf, void *metadata_set)
static int mxf_read_cryptographic_context (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static int mxf_read_content_storage (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static int mxf_read_source_clip (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static int mxf_read_material_package (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static int mxf_read_track (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static int mxf_read_sequence (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static int mxf_read_source_package (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static int mxf_read_index_table_segment (void *arg, AVIOContext *pb, int tag, int size, UID uid)
static void mxf_read_pixel_layout (AVIOContext *pb, MXFDescriptor *descriptor)
static int mxf_read_generic_descriptor (void *arg, AVIOContext *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, MXFMetadataReadFunc *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 ff_mxf_demuxer

Define Documentation

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

Definition at line 162 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().

Typedef Documentation

typedef int MXFMetadataReadFunc(void *arg, AVIOContext *pb, int tag, int size, UID uid)

Definition at line 143 of file mxfdec.c.

Enumeration Type Documentation

enum MXFWrappingScheme

Enumerator:
Frame 
Clip 

Definition at line 138 of file mxfdec.c.

Function Documentation

static int64_t klv_decode_ber_length ( AVIOContext *  pb  )  [static]

Definition at line 164 of file mxfdec.c.

Referenced by klv_read_packet(), and mxf_decrypt_triplet().

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

Definition at line 192 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 375 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 246 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 635 of file mxfdec.c.

Referenced by mxf_parse_structural_metadata().

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

Definition at line 218 of file mxfdec.c.

Referenced by mxf_read_packet().

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

Definition at line 203 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 625 of file mxfdec.c.

Referenced by mxf_get_codec_ul().

static int mxf_parse_structural_metadata ( MXFContext *  mxf  )  [static]

Definition at line 671 of file mxfdec.c.

Referenced by mxf_read_header().

static int mxf_probe ( AVProbeData *  p  )  [static]

Definition at line 992 of file mxfdec.c.

static int mxf_read_close ( AVFormatContext *  s  )  [static]

Definition at line 959 of file mxfdec.c.

static int mxf_read_content_storage ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 397 of file mxfdec.c.

static int mxf_read_cryptographic_context ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 387 of file mxfdec.c.

static int mxf_read_generic_descriptor ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 558 of file mxfdec.c.

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

Definition at line 914 of file mxfdec.c.

static int mxf_read_index_table_segment ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 526 of file mxfdec.c.

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

Definition at line 873 of file mxfdec.c.

Referenced by mxf_read_header().

static int mxf_read_material_package ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 437 of file mxfdec.c.

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

Definition at line 309 of file mxfdec.c.

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

Definition at line 539 of file mxfdec.c.

Referenced by mxf_read_generic_descriptor().

static int mxf_read_primer_pack ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 355 of file mxfdec.c.

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

Definition at line 1010 of file mxfdec.c.

static int mxf_read_sequence ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 476 of file mxfdec.c.

static int mxf_read_source_clip ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 415 of file mxfdec.c.

static int mxf_read_source_package ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 500 of file mxfdec.c.

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

Definition at line 179 of file mxfdec.c.

Referenced by klv_read_packet(), and mxf_read_header().

static int mxf_read_track ( void *  arg,
AVIOContext *  pb,
int  tag,
int  size,
UID  uid 
) [static]

Definition at line 455 of file mxfdec.c.

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

Definition at line 645 of file mxfdec.c.

Referenced by mxf_parse_structural_metadata().

Variable Documentation

AVInputFormat ff_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 1025 of file mxfdec.c.

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 157 of file mxfdec.c.

Referenced by mxf_read_cryptographic_context().

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 159 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 158 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 660 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 154 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 153 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 155 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 852 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 160 of file mxfdec.c.

Referenced by mxf_read_generic_descriptor().

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