#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include <limits.h>

Data Structures
struct	atom_t

struct	update_chunk_offsets_context_t

struct	upgrade_stco_context_t

Macros
#define	MIN(a, b) ((a) > (b) ? (b) : (a))

#define	BE_32(x)

#define	BE_64(x)

#define	AV_WB32(p, val)

#define	AV_WB64(p, val)

#define	BE_FOURCC(ch0, ch1, ch2, ch3)

#define	QT_ATOM BE_FOURCC

#define	FREE_ATOM QT_ATOM('f', 'r', 'e', 'e')

#define	JUNK_ATOM QT_ATOM('j', 'u', 'n', 'k')

#define	MDAT_ATOM QT_ATOM('m', 'd', 'a', 't')

#define	MOOV_ATOM QT_ATOM('m', 'o', 'o', 'v')

#define	PNOT_ATOM QT_ATOM('p', 'n', 'o', 't')

#define	SKIP_ATOM QT_ATOM('s', 'k', 'i', 'p')

#define	WIDE_ATOM QT_ATOM('w', 'i', 'd', 'e')

#define	PICT_ATOM QT_ATOM('P', 'I', 'C', 'T')

#define	FTYP_ATOM QT_ATOM('f', 't', 'y', 'p')

#define	UUID_ATOM QT_ATOM('u', 'u', 'i', 'd')

#define	CMOV_ATOM QT_ATOM('c', 'm', 'o', 'v')

#define	TRAK_ATOM QT_ATOM('t', 'r', 'a', 'k')

#define	MDIA_ATOM QT_ATOM('m', 'd', 'i', 'a')

#define	MINF_ATOM QT_ATOM('m', 'i', 'n', 'f')

#define	STBL_ATOM QT_ATOM('s', 't', 'b', 'l')

#define	STCO_ATOM QT_ATOM('s', 't', 'c', 'o')

#define	CO64_ATOM QT_ATOM('c', 'o', '6', '4')

#define	ATOM_PREAMBLE_SIZE 8

#define	COPY_BUFFER_SIZE 33554432

#define	MAX_FTYP_ATOM_SIZE 1048576

Typedefs
typedef int(*	parse_atoms_callback_t) (void context, atom_t atom)

Functions
static int	parse_atoms (unsigned char buf, uint64_t size, parse_atoms_callback_t callback, void context)

static int	update_stco_offsets (update_chunk_offsets_context_t context, atom_t atom)

static int	update_co64_offsets (update_chunk_offsets_context_t context, atom_t atom)

static int	update_chunk_offsets_callback (void ctx, atom_t atom)

static void	set_atom_size (unsigned char *header, uint32_t header_size, uint64_t size)

static void	upgrade_stco_atom (upgrade_stco_context_t context, atom_t atom)

static int	upgrade_stco_callback (void ctx, atom_t atom)

static int	update_moov_atom (unsigned char *moov_atom, uint64_t moov_atom_size)

int	main (int argc, char *argv[])

Macro Definition Documentation

◆ MIN

#define MIN	(	a,
		b
	)	((a) > (b) ? (b) : (a))

Definition at line 45 of file qt-faststart.c.

◆ BE_32

#define BE_32 ( x )

Value:

                             (((uint32_t)(((uint8_t*)(x))[0]) << 24) |  \
                             (((uint8_t*)(x))[1]  << 16) |  \
                             (((uint8_t*)(x))[2]  <<  8) |  \
                              ((uint8_t*)(x))[3])

Definition at line 47 of file qt-faststart.c.

◆ BE_64

#define BE_64 ( x )

Value:

                  (((uint64_t)(((uint8_t*)(x))[0]) << 56) |  \
                  ((uint64_t)(((uint8_t*)(x))[1]) << 48) |  \
                  ((uint64_t)(((uint8_t*)(x))[2]) << 40) |  \
                  ((uint64_t)(((uint8_t*)(x))[3]) << 32) |  \
                  ((uint64_t)(((uint8_t*)(x))[4]) << 24) |  \
                  ((uint64_t)(((uint8_t*)(x))[5]) << 16) |  \
                  ((uint64_t)(((uint8_t*)(x))[6]) <<  8) |  \
                  ((uint64_t)( (uint8_t*)(x))[7]))

Definition at line 52 of file qt-faststart.c.

◆ AV_WB32

#define AV_WB32	(	p,
		val
	)

Value:

    {                    \
    ((uint8_t*)(p))[0] = ((val) >> 24) & 0xff;  \
    ((uint8_t*)(p))[1] = ((val) >> 16) & 0xff;  \
    ((uint8_t*)(p))[2] = ((val) >> 8) & 0xff;   \
    ((uint8_t*)(p))[3] = (val) & 0xff;          \
    }

Definition at line 61 of file qt-faststart.c.

◆ AV_WB64

#define AV_WB64	(	p,
		val
	)

Value:

    {                    \
    AV_WB32(p, (val) >> 32)                     \
    AV_WB32(p + 4, val)                         \
    }

Definition at line 68 of file qt-faststart.c.

◆ BE_FOURCC

#define BE_FOURCC	(	ch0,
		ch1,
		ch2,
		ch3
	)

Value:

    ( (uint32_t)(unsigned char)(ch3)        |   \
     ((uint32_t)(unsigned char)(ch2) <<  8) |   \
     ((uint32_t)(unsigned char)(ch1) << 16) |   \
     ((uint32_t)(unsigned char)(ch0) << 24) )

Definition at line 73 of file qt-faststart.c.

◆ QT_ATOM

#define QT_ATOM BE_FOURCC

Definition at line 79 of file qt-faststart.c.

◆ FREE_ATOM

#define FREE_ATOM QT_ATOM('f', 'r', 'e', 'e')

Definition at line 81 of file qt-faststart.c.

◆ JUNK_ATOM

#define JUNK_ATOM QT_ATOM('j', 'u', 'n', 'k')

Definition at line 82 of file qt-faststart.c.

◆ MDAT_ATOM

#define MDAT_ATOM QT_ATOM('m', 'd', 'a', 't')

Definition at line 83 of file qt-faststart.c.

◆ MOOV_ATOM

#define MOOV_ATOM QT_ATOM('m', 'o', 'o', 'v')

Definition at line 84 of file qt-faststart.c.

◆ PNOT_ATOM

#define PNOT_ATOM QT_ATOM('p', 'n', 'o', 't')

Definition at line 85 of file qt-faststart.c.

◆ SKIP_ATOM

#define SKIP_ATOM QT_ATOM('s', 'k', 'i', 'p')

Definition at line 86 of file qt-faststart.c.

◆ WIDE_ATOM

#define WIDE_ATOM QT_ATOM('w', 'i', 'd', 'e')

Definition at line 87 of file qt-faststart.c.

◆ PICT_ATOM

#define PICT_ATOM QT_ATOM('P', 'I', 'C', 'T')

Definition at line 88 of file qt-faststart.c.

◆ FTYP_ATOM

#define FTYP_ATOM QT_ATOM('f', 't', 'y', 'p')

Definition at line 89 of file qt-faststart.c.

◆ UUID_ATOM

#define UUID_ATOM QT_ATOM('u', 'u', 'i', 'd')

Definition at line 90 of file qt-faststart.c.

◆ CMOV_ATOM

#define CMOV_ATOM QT_ATOM('c', 'm', 'o', 'v')

Definition at line 92 of file qt-faststart.c.

◆ TRAK_ATOM

#define TRAK_ATOM QT_ATOM('t', 'r', 'a', 'k')

Definition at line 93 of file qt-faststart.c.

◆ MDIA_ATOM

#define MDIA_ATOM QT_ATOM('m', 'd', 'i', 'a')

Definition at line 94 of file qt-faststart.c.

◆ MINF_ATOM

#define MINF_ATOM QT_ATOM('m', 'i', 'n', 'f')

Definition at line 95 of file qt-faststart.c.

◆ STBL_ATOM

#define STBL_ATOM QT_ATOM('s', 't', 'b', 'l')

Definition at line 96 of file qt-faststart.c.

◆ STCO_ATOM

#define STCO_ATOM QT_ATOM('s', 't', 'c', 'o')

Definition at line 97 of file qt-faststart.c.

◆ CO64_ATOM

#define CO64_ATOM QT_ATOM('c', 'o', '6', '4')

Definition at line 98 of file qt-faststart.c.

◆ ATOM_PREAMBLE_SIZE

#define ATOM_PREAMBLE_SIZE 8

Definition at line 100 of file qt-faststart.c.

◆ COPY_BUFFER_SIZE

#define COPY_BUFFER_SIZE 33554432

Definition at line 101 of file qt-faststart.c.

◆ MAX_FTYP_ATOM_SIZE

#define MAX_FTYP_ATOM_SIZE 1048576

Definition at line 102 of file qt-faststart.c.

Typedef Documentation

◆ parse_atoms_callback_t

typedef int(* parse_atoms_callback_t) (void *context, atom_t *atom)

Definition at line 125 of file qt-faststart.c.

Function Documentation

◆ parse_atoms()

static int parse_atoms	(	unsigned char *	buf,
		uint64_t	size,
		parse_atoms_callback_t	callback,
		void *	context
	)

static

Definition at line 127 of file qt-faststart.c.

Referenced by update_chunk_offsets_callback(), update_moov_atom(), and upgrade_stco_callback().

◆ update_stco_offsets()

static int update_stco_offsets	(	update_chunk_offsets_context_t *	context,
		atom_t *	atom
	)

static

Definition at line 185 of file qt-faststart.c.

Referenced by update_chunk_offsets_callback().

◆ update_co64_offsets()

static int update_co64_offsets	(	update_chunk_offsets_context_t *	context,
		atom_t *	atom
	)

static

Definition at line 221 of file qt-faststart.c.

Referenced by update_chunk_offsets_callback().

◆ update_chunk_offsets_callback()

static int update_chunk_offsets_callback	(	void *	ctx,
		atom_t *	atom
	)

static

Definition at line 251 of file qt-faststart.c.

Referenced by update_moov_atom().

◆ set_atom_size()

static void set_atom_size	(	unsigned char *	header,
		uint32_t	header_size,
		uint64_t	size
	)

static

Definition at line 286 of file qt-faststart.c.

Referenced by upgrade_stco_atom(), and upgrade_stco_callback().

◆ upgrade_stco_atom()

static void upgrade_stco_atom	(	upgrade_stco_context_t *	context,
		atom_t *	atom
	)

static

Definition at line 299 of file qt-faststart.c.

Referenced by upgrade_stco_callback().

◆ upgrade_stco_callback()

static int upgrade_stco_callback	(	void *	ctx,
		atom_t *	atom
	)

static

Definition at line 328 of file qt-faststart.c.

Referenced by update_moov_atom().

◆ update_moov_atom()

static int update_moov_atom	(	unsigned char **	moov_atom,
		uint64_t *	moov_atom_size
	)

static

Definition at line 372 of file qt-faststart.c.

Referenced by main().

◆ main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 430 of file qt-faststart.c.

Data Structures

Macros

Typedefs

Functions

Macro Definition Documentation

◆ MIN

◆ BE_32

◆ BE_64

◆ AV_WB32

◆ AV_WB64

◆ BE_FOURCC

◆ QT_ATOM

◆ FREE_ATOM

◆ JUNK_ATOM

◆ MDAT_ATOM

◆ MOOV_ATOM

◆ PNOT_ATOM

◆ SKIP_ATOM

◆ WIDE_ATOM

◆ PICT_ATOM

◆ FTYP_ATOM

◆ UUID_ATOM

◆ CMOV_ATOM

◆ TRAK_ATOM

◆ MDIA_ATOM

◆ MINF_ATOM

◆ STBL_ATOM

◆ STCO_ATOM

◆ CO64_ATOM

◆ ATOM_PREAMBLE_SIZE

◆ COPY_BUFFER_SIZE

◆ MAX_FTYP_ATOM_SIZE

Typedef Documentation

◆ parse_atoms_callback_t

Function Documentation

◆ parse_atoms()

◆ update_stco_offsets()

◆ update_co64_offsets()

◆ update_chunk_offsets_callback()

◆ set_atom_size()

◆ upgrade_stco_atom()

◆ upgrade_stco_callback()

◆ update_moov_atom()

◆ main()