libavformat/mov.c File Reference

#include <limits.h>
#include "libavutil/audioconvert.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/intfloat.h"
#include "libavutil/mathematics.h"
#include "libavutil/avstring.h"
#include "libavutil/dict.h"
#include "libavutil/opt.h"
#include "libavcodec/ac3tab.h"
#include "avformat.h"
#include "internal.h"
#include "avio_internal.h"
#include "riff.h"
#include "isom.h"
#include "libavcodec/get_bits.h"
#include "libavcodec/timecode.h"
#include "id3v1.h"
#include "mov_chan.h"
#include "qtpalette.h"
#include <assert.h>

Go to the source code of this file.

Data Structures

struct  MOVParseTableEntry

Functions

static int mov_metadata_track_or_disc_number (MOVContext *c, AVIOContext *pb, unsigned len, const char *key)
static int mov_metadata_int8_bypass_padding (MOVContext *c, AVIOContext *pb, unsigned len, const char *key)
static int mov_metadata_int8_no_padding (MOVContext *c, AVIOContext *pb, unsigned len, const char *key)
static int mov_metadata_gnre (MOVContext *c, AVIOContext *pb, unsigned len, const char *key)
static int mov_read_mac_string (MOVContext *c, AVIOContext *pb, int len, char *dst, int dstlen)
static int mov_read_udta_string (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_chpl (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_default (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_dref (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_hdlr (MOVContext *c, AVIOContext *pb, MOVAtom atom)
int ff_mov_read_esds (AVFormatContext *fc, AVIOContext *pb, MOVAtom atom)
static int mov_read_esds (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_dac3 (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_chan (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_wfex (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_pasp (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_mdat (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_ftyp (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_moov (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_moof (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static void mov_metadata_creation_time (AVDictionary **metadata, time_t time)
static int mov_read_mdhd (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_mvhd (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_smi (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_enda (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_fiel (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_extradata (MOVContext *c, AVIOContext *pb, MOVAtom atom, enum CodecID codec_id)
static int mov_read_alac (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_avss (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_jp2h (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_wave (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_glbl (MOVContext *c, AVIOContext *pb, MOVAtom atom)
 This function reads atom content and puts data in extradata without tag nor size unlike mov_read_extradata.
static int mov_read_strf (MOVContext *c, AVIOContext *pb, MOVAtom atom)
 An strf atom is a BITMAPINFOHEADER struct.
static int mov_read_stco (MOVContext *c, AVIOContext *pb, MOVAtom atom)
enum CodecID ff_mov_get_lpcm_codec_id (int bps, int flags)
 Compute codec id for 'lpcm' tag.
int ff_mov_read_stsd_entries (MOVContext *c, AVIOContext *pb, int entries)
static int mov_read_stsd (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_stsc (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_stps (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_stss (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_stsz (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_stts (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_ctts (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static void mov_build_index (MOVContext *mov, AVStream *st)
static int mov_open_dref (AVIOContext **pb, const char *src, MOVDref *ref, AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
static int mov_read_trak (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_ilst (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_meta (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_tkhd (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_tfhd (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_chap (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_trex (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_trun (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_wide (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_cmov (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_elst (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_chan2 (MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_probe (AVProbeData *p)
static void mov_read_chapters (AVFormatContext *s)
static int parse_timecode_in_framenum_format (AVFormatContext *s, AVStream *st, uint32_t value)
static int mov_read_timecode_track (AVFormatContext *s, AVStream *st)
static int mov_read_header (AVFormatContext *s, AVFormatParameters *ap)
static AVIndexEntry * mov_find_next_sample (AVFormatContext *s, AVStream **st)
static int mov_read_packet (AVFormatContext *s, AVPacket *pkt)
static int mov_seek_stream (AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
static int mov_read_seek (AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
static int mov_read_close (AVFormatContext *s)

Variables

static const MOVParseTableEntry mov_default_parse_table []
static const uint32_t mac_to_unicode [128]
static const AVOption options []
class {
      mov
      mp4
      m4a
      mj2
      av_default_item_name
      options
}; 
AVInputFormat ff_mov_demuxer

Function Documentation

enum CodecID ff_mov_get_lpcm_codec_id ( int  bps,
int  flags 
)

Compute codec id for 'lpcm' tag.

See CoreAudioTypes and AudioStreamBasicDescription at Apple.

Definition at line 1090 of file mov.c.

Referenced by ff_mov_read_stsd_entries(), and read_desc_chunk().

int ff_mov_read_esds ( AVFormatContext *  fc,
AVIOContext *  pb,
MOVAtom  atom 
)

Definition at line 530 of file mov.c.

Referenced by mov_read_esds(), and read_kuki_chunk().

int ff_mov_read_stsd_entries ( MOVContext *  c,
AVIOContext *  pb,
int  entries 
)

Definition at line 1121 of file mov.c.

Referenced by mov_read_stsd(), and qt_rtp_parse_packet().

static void mov_build_index ( MOVContext *  mov,
AVStream *  st 
) [static]

Definition at line 1759 of file mov.c.

Referenced by mov_read_trak().

static AVIndexEntry* mov_find_next_sample ( AVFormatContext *  s,
AVStream **  st 
) [static]

Definition at line 2751 of file mov.c.

Referenced by mov_read_packet().

static void mov_metadata_creation_time ( AVDictionary **  metadata,
time_t  time 
) [static]

Definition at line 730 of file mov.c.

Referenced by mov_read_mdhd(), and mov_read_mvhd().

static int mov_metadata_gnre ( MOVContext *  c,
AVIOContext *  pb,
unsigned  len,
const char *  key 
) [static]

Definition at line 116 of file mov.c.

Referenced by mov_read_udta_string().

static int mov_metadata_int8_bypass_padding ( MOVContext *  c,
AVIOContext *  pb,
unsigned  len,
const char *  key 
) [static]

Definition at line 89 of file mov.c.

Referenced by mov_read_udta_string().

static int mov_metadata_int8_no_padding ( MOVContext *  c,
AVIOContext *  pb,
unsigned  len,
const char *  key 
) [static]

Definition at line 105 of file mov.c.

Referenced by mov_read_udta_string().

static int mov_metadata_track_or_disc_number ( MOVContext *  c,
AVIOContext *  pb,
unsigned  len,
const char *  key 
) [static]

Definition at line 70 of file mov.c.

Referenced by mov_read_udta_string().

static int mov_open_dref ( AVIOContext **  pb,
const char *  src,
MOVDref *  ref,
AVIOInterruptCB *  int_cb,
int  use_absolute_path,
AVFormatContext *  fc 
) [static]

Definition at line 1946 of file mov.c.

Referenced by mov_read_trak().

static int mov_probe ( AVProbeData *  p  )  [static]

Definition at line 2550 of file mov.c.

static int mov_read_alac ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 944 of file mov.c.

static int mov_read_avss ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 949 of file mov.c.

static int mov_read_chan ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 581 of file mov.c.

static int mov_read_chan2 ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2483 of file mov.c.

static int mov_read_chap ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2249 of file mov.c.

static void mov_read_chapters ( AVFormatContext *  s  )  [static]

Definition at line 2595 of file mov.c.

Referenced by mov_read_header().

static int mov_read_chpl ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 275 of file mov.c.

static int mov_read_close ( AVFormatContext *  s  )  [static]

Definition at line 2921 of file mov.c.

static int mov_read_cmov ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2392 of file mov.c.

static int mov_read_ctts ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1718 of file mov.c.

static int mov_read_dac3 ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 557 of file mov.c.

static int mov_read_default ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 307 of file mov.c.

Referenced by ff_mov_read_stsd_entries(), mov_read_cmov(), mov_read_glbl(), mov_read_header(), mov_read_ilst(), mov_read_meta(), mov_read_moof(), mov_read_moov(), mov_read_packet(), mov_read_trak(), and mov_read_wave().

static int mov_read_dref ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 374 of file mov.c.

static int mov_read_elst ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2441 of file mov.c.

static int mov_read_enda ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 847 of file mov.c.

static int mov_read_esds ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 552 of file mov.c.

static int mov_read_extradata ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom,
enum CodecID  codec_id 
) [static]

Definition at line 914 of file mov.c.

Referenced by mov_read_alac(), mov_read_avss(), and mov_read_jp2h().

static int mov_read_fiel ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 879 of file mov.c.

static int mov_read_ftyp ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 679 of file mov.c.

static int mov_read_glbl ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

This function reads atom content and puts data in extradata without tag nor size unlike mov_read_extradata.

Definition at line 991 of file mov.c.

Referenced by ff_mov_read_stsd_entries().

static int mov_read_hdlr ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 480 of file mov.c.

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

Definition at line 2704 of file mov.c.

static int mov_read_ilst ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2093 of file mov.c.

static int mov_read_jp2h ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 954 of file mov.c.

static int mov_read_mac_string ( MOVContext *  c,
AVIOContext *  pb,
int  len,
char *  dst,
int  dstlen 
) [static]

Definition at line 152 of file mov.c.

Referenced by ff_mov_read_stsd_entries(), and mov_read_udta_string().

static int mov_read_mdat ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 670 of file mov.c.

Referenced by mov_read_wide().

static int mov_read_mdhd ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 743 of file mov.c.

static int mov_read_meta ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2102 of file mov.c.

static int mov_read_moof ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 723 of file mov.c.

static int mov_read_moov ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 711 of file mov.c.

static int mov_read_mvhd ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 783 of file mov.c.

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

Definition at line 2777 of file mov.c.

static int mov_read_pasp ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 646 of file mov.c.

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

Definition at line 2890 of file mov.c.

static int mov_read_smi ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 823 of file mov.c.

static int mov_read_stco ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1048 of file mov.c.

static int mov_read_stps ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1527 of file mov.c.

static int mov_read_strf ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

An strf atom is a BITMAPINFOHEADER struct.

This struct is 40 bytes itself, but can have extradata appended at the end after the 40 bytes belonging to the struct.

Definition at line 1025 of file mov.c.

static int mov_read_stsc ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1492 of file mov.c.

static int mov_read_stsd ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1481 of file mov.c.

static int mov_read_stss ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1556 of file mov.c.

static int mov_read_stsz ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1590 of file mov.c.

static int mov_read_stts ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1662 of file mov.c.

static int mov_read_tfhd ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2214 of file mov.c.

static int mov_read_timecode_track ( AVFormatContext *  s,
AVStream *  st 
) [static]

Definition at line 2681 of file mov.c.

Referenced by mov_read_header().

static int mov_read_tkhd ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2116 of file mov.c.

static int mov_read_trak ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 1995 of file mov.c.

static int mov_read_trex ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2255 of file mov.c.

static int mov_read_trun ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2279 of file mov.c.

static int mov_read_udta_string ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 170 of file mov.c.

Referenced by mov_read_default().

static int mov_read_wave ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 959 of file mov.c.

static int mov_read_wfex ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 633 of file mov.c.

static int mov_read_wide ( MOVContext *  c,
AVIOContext *  pb,
MOVAtom  atom 
) [static]

Definition at line 2372 of file mov.c.

static int mov_seek_stream ( AVFormatContext *  s,
AVStream *  st,
int64_t  timestamp,
int  flags 
) [static]

Definition at line 2860 of file mov.c.

Referenced by mov_read_seek().

static int parse_timecode_in_framenum_format ( AVFormatContext *  s,
AVStream *  st,
uint32_t  value 
) [static]

Definition at line 2664 of file mov.c.

Referenced by mov_read_timecode_track().

Variable Documentation

const { ... } [static]

av_default_item_name

Definition at line 2961 of file mov.c.

AVInputFormat ff_mov_demuxer

Initial value:

 {
    .name           = "mov,mp4,m4a,3gp,3g2,mj2",
    .long_name      = NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
    .priv_data_size = sizeof(MOVContext),
    .read_probe     = mov_probe,
    .read_header    = mov_read_header,
    .read_packet    = mov_read_packet,
    .read_close     = mov_read_close,
    .read_seek      = mov_read_seek,
    .priv_class     = &class,
}

Definition at line 2963 of file mov.c.

m4a

Definition at line 2961 of file mov.c.

const uint32_t mac_to_unicode[128] [static]

Initial value:

 {
    0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
    0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
    0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
    0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
    0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
    0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
    0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
    0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
    0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
    0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
    0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
    0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
    0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
    0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
    0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
    0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
}

Definition at line 133 of file mov.c.

Referenced by mov_read_mac_string().

mj2

Definition at line 2961 of file mov.c.

mov

Definition at line 2961 of file mov.c.

Referenced by av_register_all(), ff_mov_add_hinted_packet(), ff_mov_init_hinting(), mov_create_chapter_track(), mov_flush_fragment(), mov_read_chapters(), mov_read_close(), mov_read_header(), mov_read_packet(), mov_write_ftyp_tag(), mov_write_header(), mov_write_packet_internal(), and mov_write_trailer().

static const MOVParseTableEntry mov_default_parse_table [static]

Definition at line 68 of file mov.c.

mp4

Definition at line 2961 of file mov.c.

Referenced by av_register_all().

options (  )  [static]

Initial value:

 {
    {"use_absolute_path",
        "allow using absolute path when opening alias, this is a possible security issue",
        0x42, FF_OPT_TYPE_INT, {.dbl = 0},
        0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
    {NULL}
}

Definition at line 2954 of file mov.c.

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