From 6140341e728fb7469c57543534ec31dfec4a0c81 Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Sun, 8 Aug 2021 21:37:27 +0200 Subject: [PATCH] mp4: Run indent on mp4.c. This transforms the newly added code to a form which matches the paraslash coding style. The patch was produced with indent -kr -i8 -ts8 -sob -l80 -ss -bs followed by a some manual cleanups. --- mp4.c | 3233 +++++++++++++++++++++++++++++---------------------------- 1 file changed, 1666 insertions(+), 1567 deletions(-) diff --git a/mp4.c b/mp4.c index b0d9c3fa..d04137a9 100644 --- a/mp4.c +++ b/mp4.c @@ -9,66 +9,67 @@ #include "mp4.h" #define USE_TAGGING -int32_t mp4ff_total_tracks(const mp4ff_t *f) +int32_t mp4ff_total_tracks(const mp4ff_t * f) { return f->total_tracks; } -int32_t mp4ff_read_data(mp4ff_t *f, int8_t *data, uint32_t size) +int32_t mp4ff_read_data(mp4ff_t * f, int8_t * data, uint32_t size) { - int32_t result = 1; + int32_t result = 1; - result = f->stream->read(f->stream->user_data, data, size); + result = f->stream->read(f->stream->user_data, data, size); - if (result < size) - f->stream->read_error++; + if (result < size) + f->stream->read_error++; - f->current_position += size; + f->current_position += size; - return result; + return result; } /* parse atom header size */ -static int32_t mp4ff_atom_get_size(const int8_t *data) +static int32_t mp4ff_atom_get_size(const int8_t * data) { - uint32_t result; - uint32_t a, b, c, d; + uint32_t result; + uint32_t a, b, c, d; - a = (uint8_t)data[0]; - b = (uint8_t)data[1]; - c = (uint8_t)data[2]; - d = (uint8_t)data[3]; + a = (uint8_t) data[0]; + b = (uint8_t) data[1]; + c = (uint8_t) data[2]; + d = (uint8_t) data[3]; - result = (a<<24) | (b<<16) | (c<<8) | d; - //if (result > 0 && result < 8) result = 8; + result = (a << 24) | (b << 16) | (c << 8) | d; + //if (result > 0 && result < 8) result = 8; - return (int32_t)result; + return (int32_t) result; } -uint64_t mp4ff_read_int64(mp4ff_t *f) +uint64_t mp4ff_read_int64(mp4ff_t * f) { - uint8_t data[8]; - uint64_t result = 0; - int8_t i; + uint8_t data[8]; + uint64_t result = 0; + int8_t i; - mp4ff_read_data(f, data, 8); + mp4ff_read_data(f, data, 8); - for (i = 0; i < 8; i++) - { - result |= ((uint64_t)data[i]) << ((7 - i) * 8); - } + for (i = 0; i < 8; i++) { + result |= ((uint64_t) data[i]) << ((7 - i) * 8); + } - return result; + return result; } /* comnapre 2 atom names, returns 1 for equal, 0 for unequal */ -static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t c1, const int8_t d1, - const int8_t a2, const int8_t b2, const int8_t c2, const int8_t d2) +static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, + const int8_t c1, const int8_t d1, + const int8_t a2, const int8_t b2, + const int8_t c2, const int8_t d2) { - if (a1 == a2 && b1 == b2 && c1 == c2 && d1 == d2) - return 1; - else - return 0; + if (a1 == a2 && b1 == b2 && c1 == c2 && d1 == d2) + return 1; + else + return 0; } #define TRACK_AUDIO 1 @@ -84,7 +85,7 @@ static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t #define ATOM_MINF 5 #define ATOM_STBL 6 #define ATOM_UDTA 7 -#define ATOM_ILST 8 /* iTunes Metadata list */ +#define ATOM_ILST 8 /* iTunes Metadata list */ #define ATOM_TITLE 9 #define ATOM_ARTIST 10 #define ATOM_WRITER 11 @@ -125,9 +126,9 @@ static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t #define ATOM_MP4V 145 #define ATOM_MP4S 146 #define ATOM_ESDS 147 -#define ATOM_META 148 /* iTunes Metadata box */ -#define ATOM_NAME 149 /* iTunes Metadata name box */ -#define ATOM_DATA 150 /* iTunes Metadata data box */ +#define ATOM_META 148 /* iTunes Metadata box */ +#define ATOM_NAME 149 /* iTunes Metadata name box */ +#define ATOM_DATA 150 /* iTunes Metadata data box */ #define ATOM_CTTS 151 #define ATOM_FRMA 152 #define ATOM_IVIV 153 @@ -158,212 +159,219 @@ static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t #define COPYRIGHT_SYMBOL ((int8_t)0xA9) static uint8_t mp4ff_atom_name_to_type(const int8_t a, const int8_t b, - const int8_t c, const int8_t d) -{ - if (a == 'm') - { - if (mp4ff_atom_compare(a,b,c,d, 'm','o','o','v')) - return ATOM_MOOV; - else if (mp4ff_atom_compare(a,b,c,d, 'm','i','n','f')) - return ATOM_MINF; - else if (mp4ff_atom_compare(a,b,c,d, 'm','d','i','a')) - return ATOM_MDIA; - else if (mp4ff_atom_compare(a,b,c,d, 'm','d','a','t')) - return ATOM_MDAT; - else if (mp4ff_atom_compare(a,b,c,d, 'm','d','h','d')) - return ATOM_MDHD; - else if (mp4ff_atom_compare(a,b,c,d, 'm','v','h','d')) - return ATOM_MVHD; - else if (mp4ff_atom_compare(a,b,c,d, 'm','p','4','a')) - return ATOM_MP4A; - else if (mp4ff_atom_compare(a,b,c,d, 'm','p','4','v')) - return ATOM_MP4V; - else if (mp4ff_atom_compare(a,b,c,d, 'm','p','4','s')) - return ATOM_MP4S; - else if (mp4ff_atom_compare(a,b,c,d, 'm','e','t','a')) - return ATOM_META; - } else if (a == 't') { - if (mp4ff_atom_compare(a,b,c,d, 't','r','a','k')) - return ATOM_TRAK; - else if (mp4ff_atom_compare(a,b,c,d, 't','k','h','d')) - return ATOM_TKHD; - else if (mp4ff_atom_compare(a,b,c,d, 't','r','e','f')) - return ATOM_TREF; - else if (mp4ff_atom_compare(a,b,c,d, 't','r','k','n')) - return ATOM_TRACK; - else if (mp4ff_atom_compare(a,b,c,d, 't','m','p','o')) - return ATOM_TEMPO; - else if (mp4ff_atom_compare(a,b,c,d, 't','v','n','n')) - return ATOM_NETWORK; - else if (mp4ff_atom_compare(a,b,c,d, 't','v','s','h')) - return ATOM_SHOW; - else if (mp4ff_atom_compare(a,b,c,d, 't','v','e','n')) - return ATOM_EPISODENAME; - else if (mp4ff_atom_compare(a,b,c,d, 't','v','s','n')) - return ATOM_SEASON; - else if (mp4ff_atom_compare(a,b,c,d, 't','v','e','s')) - return ATOM_EPISODE; - } else if (a == 's') { - if (mp4ff_atom_compare(a,b,c,d, 's','t','b','l')) - return ATOM_STBL; - else if (mp4ff_atom_compare(a,b,c,d, 's','m','h','d')) - return ATOM_SMHD; - else if (mp4ff_atom_compare(a,b,c,d, 's','t','s','d')) - return ATOM_STSD; - else if (mp4ff_atom_compare(a,b,c,d, 's','t','t','s')) - return ATOM_STTS; - else if (mp4ff_atom_compare(a,b,c,d, 's','t','c','o')) - return ATOM_STCO; - else if (mp4ff_atom_compare(a,b,c,d, 's','t','s','c')) - return ATOM_STSC; - else if (mp4ff_atom_compare(a,b,c,d, 's','t','s','z')) - return ATOM_STSZ; - else if (mp4ff_atom_compare(a,b,c,d, 's','t','z','2')) - return ATOM_STZ2; - else if (mp4ff_atom_compare(a,b,c,d, 's','k','i','p')) - return ATOM_SKIP; - else if (mp4ff_atom_compare(a,b,c,d, 's','i','n','f')) - return ATOM_SINF; - else if (mp4ff_atom_compare(a,b,c,d, 's','c','h','i')) - return ATOM_SCHI; - else if (mp4ff_atom_compare(a,b,c,d, 's','o','n','m')) - return ATOM_SORTTITLE; - else if (mp4ff_atom_compare(a,b,c,d, 's','o','a','l')) - return ATOM_SORTALBUM; - else if (mp4ff_atom_compare(a,b,c,d, 's','o','a','r')) - return ATOM_SORTARTIST; - else if (mp4ff_atom_compare(a,b,c,d, 's','o','a','a')) - return ATOM_SORTALBUMARTIST; - else if (mp4ff_atom_compare(a,b,c,d, 's','o','c','o')) - return ATOM_SORTWRITER; - else if (mp4ff_atom_compare(a,b,c,d, 's','o','s','n')) - return ATOM_SORTSHOW; - } else if (a == COPYRIGHT_SYMBOL) { - if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'n','a','m')) - return ATOM_TITLE; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'A','R','T')) - return ATOM_ARTIST; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'w','r','t')) - return ATOM_WRITER; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'a','l','b')) - return ATOM_ALBUM; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'d','a','y')) - return ATOM_DATE; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'t','o','o')) - return ATOM_TOOL; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'c','m','t')) - return ATOM_COMMENT; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'g','e','n')) - return ATOM_GENRE1; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'g','r','p')) - return ATOM_CONTENTGROUP; - else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'l','y','r')) - return ATOM_LYRICS; - } - - if (mp4ff_atom_compare(a,b,c,d, 'e','d','t','s')) - return ATOM_EDTS; - else if (mp4ff_atom_compare(a,b,c,d, 'e','s','d','s')) - return ATOM_ESDS; - else if (mp4ff_atom_compare(a,b,c,d, 'f','t','y','p')) - return ATOM_FTYP; - else if (mp4ff_atom_compare(a,b,c,d, 'f','r','e','e')) - return ATOM_FREE; - else if (mp4ff_atom_compare(a,b,c,d, 'h','m','h','d')) - return ATOM_HMHD; - else if (mp4ff_atom_compare(a,b,c,d, 'v','m','h','d')) - return ATOM_VMHD; - else if (mp4ff_atom_compare(a,b,c,d, 'u','d','t','a')) - return ATOM_UDTA; - else if (mp4ff_atom_compare(a,b,c,d, 'i','l','s','t')) - return ATOM_ILST; - else if (mp4ff_atom_compare(a,b,c,d, 'n','a','m','e')) - return ATOM_NAME; - else if (mp4ff_atom_compare(a,b,c,d, 'd','a','t','a')) - return ATOM_DATA; - else if (mp4ff_atom_compare(a,b,c,d, 'd','i','s','k')) - return ATOM_DISC; - else if (mp4ff_atom_compare(a,b,c,d, 'g','n','r','e')) - return ATOM_GENRE2; - else if (mp4ff_atom_compare(a,b,c,d, 'c','o','v','r')) - return ATOM_COVER; - else if (mp4ff_atom_compare(a,b,c,d, 'c','p','i','l')) - return ATOM_COMPILATION; - else if (mp4ff_atom_compare(a,b,c,d, 'c','t','t','s')) - return ATOM_CTTS; - else if (mp4ff_atom_compare(a,b,c,d, 'd','r','m','s')) - return ATOM_DRMS; - else if (mp4ff_atom_compare(a,b,c,d, 'f','r','m','a')) - return ATOM_FRMA; - else if (mp4ff_atom_compare(a,b,c,d, 'p','r','i','v')) - return ATOM_PRIV; - else if (mp4ff_atom_compare(a,b,c,d, 'i','v','i','v')) - return ATOM_IVIV; - else if (mp4ff_atom_compare(a,b,c,d, 'u','s','e','r')) - return ATOM_USER; - else if (mp4ff_atom_compare(a,b,c,d, 'k','e','y',' ')) - return ATOM_KEY; - else if (mp4ff_atom_compare(a,b,c,d, 'a','A','R','T')) - return ATOM_ALBUM_ARTIST; - else if (mp4ff_atom_compare(a,b,c,d, 'd','e','s','c')) - return ATOM_DESCRIPTION; - else if (mp4ff_atom_compare(a,b,c,d, 'p','c','s','t')) - return ATOM_PODCAST; - else - return ATOM_UNKNOWN; + const int8_t c, const int8_t d) +{ + if (a == 'm') { + if (mp4ff_atom_compare(a, b, c, d, 'm', 'o', 'o', 'v')) + return ATOM_MOOV; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'i', 'n', 'f')) + return ATOM_MINF; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'd', 'i', 'a')) + return ATOM_MDIA; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'd', 'a', 't')) + return ATOM_MDAT; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'd', 'h', 'd')) + return ATOM_MDHD; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'v', 'h', 'd')) + return ATOM_MVHD; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'p', '4', 'a')) + return ATOM_MP4A; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'p', '4', 'v')) + return ATOM_MP4V; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'p', '4', 's')) + return ATOM_MP4S; + else if (mp4ff_atom_compare(a, b, c, d, 'm', 'e', 't', 'a')) + return ATOM_META; + } else if (a == 't') { + if (mp4ff_atom_compare(a, b, c, d, 't', 'r', 'a', 'k')) + return ATOM_TRAK; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'k', 'h', 'd')) + return ATOM_TKHD; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'r', 'e', 'f')) + return ATOM_TREF; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'r', 'k', 'n')) + return ATOM_TRACK; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'm', 'p', 'o')) + return ATOM_TEMPO; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'v', 'n', 'n')) + return ATOM_NETWORK; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'v', 's', 'h')) + return ATOM_SHOW; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'v', 'e', 'n')) + return ATOM_EPISODENAME; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'v', 's', 'n')) + return ATOM_SEASON; + else if (mp4ff_atom_compare(a, b, c, d, 't', 'v', 'e', 's')) + return ATOM_EPISODE; + } else if (a == 's') { + if (mp4ff_atom_compare(a, b, c, d, 's', 't', 'b', 'l')) + return ATOM_STBL; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'm', 'h', 'd')) + return ATOM_SMHD; + else if (mp4ff_atom_compare(a, b, c, d, 's', 't', 's', 'd')) + return ATOM_STSD; + else if (mp4ff_atom_compare(a, b, c, d, 's', 't', 't', 's')) + return ATOM_STTS; + else if (mp4ff_atom_compare(a, b, c, d, 's', 't', 'c', 'o')) + return ATOM_STCO; + else if (mp4ff_atom_compare(a, b, c, d, 's', 't', 's', 'c')) + return ATOM_STSC; + else if (mp4ff_atom_compare(a, b, c, d, 's', 't', 's', 'z')) + return ATOM_STSZ; + else if (mp4ff_atom_compare(a, b, c, d, 's', 't', 'z', '2')) + return ATOM_STZ2; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'k', 'i', 'p')) + return ATOM_SKIP; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'i', 'n', 'f')) + return ATOM_SINF; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'c', 'h', 'i')) + return ATOM_SCHI; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'o', 'n', 'm')) + return ATOM_SORTTITLE; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'o', 'a', 'l')) + return ATOM_SORTALBUM; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'o', 'a', 'r')) + return ATOM_SORTARTIST; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'o', 'a', 'a')) + return ATOM_SORTALBUMARTIST; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'o', 'c', 'o')) + return ATOM_SORTWRITER; + else if (mp4ff_atom_compare(a, b, c, d, 's', 'o', 's', 'n')) + return ATOM_SORTSHOW; + } else if (a == COPYRIGHT_SYMBOL) { + if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'n', 'a', 'm')) + return ATOM_TITLE; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'A', 'R', 'T')) + return ATOM_ARTIST; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'w', 'r', 't')) + return ATOM_WRITER; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'a', 'l', 'b')) + return ATOM_ALBUM; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'd', 'a', 'y')) + return ATOM_DATE; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 't', 'o', 'o')) + return ATOM_TOOL; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'c', 'm', 't')) + return ATOM_COMMENT; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'g', 'e', 'n')) + return ATOM_GENRE1; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'g', 'r', 'p')) + return ATOM_CONTENTGROUP; + else if (mp4ff_atom_compare + (a, b, c, d, COPYRIGHT_SYMBOL, 'l', 'y', 'r')) + return ATOM_LYRICS; + } + + if (mp4ff_atom_compare(a, b, c, d, 'e', 'd', 't', 's')) + return ATOM_EDTS; + else if (mp4ff_atom_compare(a, b, c, d, 'e', 's', 'd', 's')) + return ATOM_ESDS; + else if (mp4ff_atom_compare(a, b, c, d, 'f', 't', 'y', 'p')) + return ATOM_FTYP; + else if (mp4ff_atom_compare(a, b, c, d, 'f', 'r', 'e', 'e')) + return ATOM_FREE; + else if (mp4ff_atom_compare(a, b, c, d, 'h', 'm', 'h', 'd')) + return ATOM_HMHD; + else if (mp4ff_atom_compare(a, b, c, d, 'v', 'm', 'h', 'd')) + return ATOM_VMHD; + else if (mp4ff_atom_compare(a, b, c, d, 'u', 'd', 't', 'a')) + return ATOM_UDTA; + else if (mp4ff_atom_compare(a, b, c, d, 'i', 'l', 's', 't')) + return ATOM_ILST; + else if (mp4ff_atom_compare(a, b, c, d, 'n', 'a', 'm', 'e')) + return ATOM_NAME; + else if (mp4ff_atom_compare(a, b, c, d, 'd', 'a', 't', 'a')) + return ATOM_DATA; + else if (mp4ff_atom_compare(a, b, c, d, 'd', 'i', 's', 'k')) + return ATOM_DISC; + else if (mp4ff_atom_compare(a, b, c, d, 'g', 'n', 'r', 'e')) + return ATOM_GENRE2; + else if (mp4ff_atom_compare(a, b, c, d, 'c', 'o', 'v', 'r')) + return ATOM_COVER; + else if (mp4ff_atom_compare(a, b, c, d, 'c', 'p', 'i', 'l')) + return ATOM_COMPILATION; + else if (mp4ff_atom_compare(a, b, c, d, 'c', 't', 't', 's')) + return ATOM_CTTS; + else if (mp4ff_atom_compare(a, b, c, d, 'd', 'r', 'm', 's')) + return ATOM_DRMS; + else if (mp4ff_atom_compare(a, b, c, d, 'f', 'r', 'm', 'a')) + return ATOM_FRMA; + else if (mp4ff_atom_compare(a, b, c, d, 'p', 'r', 'i', 'v')) + return ATOM_PRIV; + else if (mp4ff_atom_compare(a, b, c, d, 'i', 'v', 'i', 'v')) + return ATOM_IVIV; + else if (mp4ff_atom_compare(a, b, c, d, 'u', 's', 'e', 'r')) + return ATOM_USER; + else if (mp4ff_atom_compare(a, b, c, d, 'k', 'e', 'y', ' ')) + return ATOM_KEY; + else if (mp4ff_atom_compare(a, b, c, d, 'a', 'A', 'R', 'T')) + return ATOM_ALBUM_ARTIST; + else if (mp4ff_atom_compare(a, b, c, d, 'd', 'e', 's', 'c')) + return ATOM_DESCRIPTION; + else if (mp4ff_atom_compare(a, b, c, d, 'p', 'c', 's', 't')) + return ATOM_PODCAST; + else + return ATOM_UNKNOWN; } /* read atom header, return atom size, atom size is with header included */ -uint64_t mp4ff_atom_read_header(mp4ff_t *f, uint8_t *atom_type, uint8_t *header_size) +uint64_t mp4ff_atom_read_header(mp4ff_t * f, uint8_t * atom_type, + uint8_t * header_size) { - uint64_t size; - int32_t ret; - int8_t atom_header[8]; - - ret = mp4ff_read_data(f, atom_header, 8); - if (ret != 8) - return 0; + uint64_t size; + int32_t ret; + int8_t atom_header[8]; - size = mp4ff_atom_get_size(atom_header); - *header_size = 8; - - /* check for 64 bit atom size */ - if (size == 1) - { - *header_size = 16; - size = mp4ff_read_int64(f); - } + ret = mp4ff_read_data(f, atom_header, 8); + if (ret != 8) + return 0; - //printf("%c%c%c%c\n", atom_header[4], atom_header[5], atom_header[6], atom_header[7]); + size = mp4ff_atom_get_size(atom_header); + *header_size = 8; - *atom_type = mp4ff_atom_name_to_type(atom_header[4], atom_header[5], atom_header[6], atom_header[7]); + /* check for 64 bit atom size */ + if (size == 1) { + *header_size = 16; + size = mp4ff_read_int64(f); + } + //printf("%c%c%c%c\n", atom_header[4], atom_header[5], atom_header[6], atom_header[7]); - return size; + *atom_type = mp4ff_atom_name_to_type(atom_header[4], atom_header[5], + atom_header[6], atom_header[7]); + return size; } -int64_t mp4ff_position(const mp4ff_t *f) +int64_t mp4ff_position(const mp4ff_t * f) { - return f->current_position; + return f->current_position; } static int need_parse_when_meta_only(uint8_t atom_type) { - switch(atom_type) - { + switch (atom_type) { case ATOM_EDTS: -// case ATOM_MDIA: -// case ATOM_MINF: +// case ATOM_MDIA: +// case ATOM_MINF: case ATOM_DRMS: case ATOM_SINF: case ATOM_SCHI: -// case ATOM_STBL: -// case ATOM_STSD: +// case ATOM_STBL: +// case ATOM_STSD: case ATOM_STTS: case ATOM_STSZ: case ATOM_STZ2: case ATOM_STCO: case ATOM_STSC: -// case ATOM_CTTS: +// case ATOM_CTTS: case ATOM_FRMA: case ATOM_IVIV: case ATOM_PRIV: @@ -373,643 +381,701 @@ static int need_parse_when_meta_only(uint8_t atom_type) } } -int32_t mp4ff_set_position(mp4ff_t *f, const int64_t position) +int32_t mp4ff_set_position(mp4ff_t * f, const int64_t position) { - f->stream->seek(f->stream->user_data, position); - f->current_position = position; + f->stream->seek(f->stream->user_data, position); + f->current_position = position; - return 0; + return 0; } -static void mp4ff_track_add(mp4ff_t *f) +static void mp4ff_track_add(mp4ff_t * f) { - f->total_tracks++; + f->total_tracks++; - if (f->total_tracks > MAX_TRACKS) - { - f->total_tracks = 0; - f->error++; - return; - } + if (f->total_tracks > MAX_TRACKS) { + f->total_tracks = 0; + f->error++; + return; + } - f->track[f->total_tracks - 1] = malloc(sizeof(mp4ff_track_t)); + f->track[f->total_tracks - 1] = malloc(sizeof (mp4ff_track_t)); - memset(f->track[f->total_tracks - 1], 0, sizeof(mp4ff_track_t)); + memset(f->track[f->total_tracks - 1], 0, sizeof (mp4ff_track_t)); } -uint8_t mp4ff_read_char(mp4ff_t *f) +uint8_t mp4ff_read_char(mp4ff_t * f) { - uint8_t output; - mp4ff_read_data(f, &output, 1); - return output; + uint8_t output; + mp4ff_read_data(f, &output, 1); + return output; } -uint32_t mp4ff_read_int24(mp4ff_t *f) +uint32_t mp4ff_read_int24(mp4ff_t * f) { - uint32_t result; - uint32_t a, b, c; - int8_t data[4]; - - mp4ff_read_data(f, data, 3); - a = (uint8_t)data[0]; - b = (uint8_t)data[1]; - c = (uint8_t)data[2]; + uint32_t result; + uint32_t a, b, c; + int8_t data[4]; - result = (a<<16) | (b<<8) | c; - return (uint32_t)result; + mp4ff_read_data(f, data, 3); + a = (uint8_t) data[0]; + b = (uint8_t) data[1]; + c = (uint8_t) data[2]; + + result = (a << 16) | (b << 8) | c; + return (uint32_t) result; } -uint32_t mp4ff_read_int32(mp4ff_t *f) +uint32_t mp4ff_read_int32(mp4ff_t * f) { - uint32_t result; - uint32_t a, b, c, d; - int8_t data[4]; - - mp4ff_read_data(f, data, 4); - a = (uint8_t)data[0]; - b = (uint8_t)data[1]; - c = (uint8_t)data[2]; - d = (uint8_t)data[3]; + uint32_t result; + uint32_t a, b, c, d; + int8_t data[4]; + + mp4ff_read_data(f, data, 4); + a = (uint8_t) data[0]; + b = (uint8_t) data[1]; + c = (uint8_t) data[2]; + d = (uint8_t) data[3]; + + result = (a << 24) | (b << 16) | (c << 8) | d; + return (uint32_t) result; +} - result = (a<<24) | (b<<16) | (c<<8) | d; - return (uint32_t)result; +static int32_t mp4ff_read_stsz(mp4ff_t * f) +{ + if (f->total_tracks == 0) + return f->error++; + + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + f->track[f->total_tracks - 1]->stsz_sample_size = mp4ff_read_int32(f); + f->track[f->total_tracks - 1]->stsz_sample_count = mp4ff_read_int32(f); + + if (f->track[f->total_tracks - 1]->stsz_sample_size == 0) { + int32_t i; + f->track[f->total_tracks - 1]->stsz_table = + (int32_t *)malloc(f->track[f->total_tracks - 1]->stsz_sample_count + * sizeof (int32_t)); + + if (!f->track[f->total_tracks - 1]->stsz_table) + return f->error++; + + for (i = 0; i < f->track[f->total_tracks - 1]->stsz_sample_count + && !f->stream->read_error; i++) { + f->track[f->total_tracks - 1]->stsz_table[i] = mp4ff_read_int32(f); + } + } + return 0; +} + +static int32_t mp4ff_read_stts(mp4ff_t * f) +{ + int32_t i; + mp4ff_track_t *p_track; + + /* CVE-2017-9223 */ + if (f->total_tracks == 0) + return f->error++; + + p_track = f->track[f->total_tracks - 1]; + + if (p_track->stts_entry_count) + return 0; + + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + p_track->stts_entry_count = mp4ff_read_int32(f); + + p_track->stts_sample_count = (int32_t *)malloc(p_track->stts_entry_count + * sizeof (int32_t)); + p_track->stts_sample_delta = (int32_t *)malloc(p_track->stts_entry_count + * sizeof (int32_t)); + + if (p_track->stts_sample_count == 0 || p_track->stts_sample_delta == 0) { + if (p_track->stts_sample_count) { + free(p_track->stts_sample_count); + p_track->stts_sample_count = 0; + } + if (p_track->stts_sample_delta) { + free(p_track->stts_sample_delta); + p_track->stts_sample_delta = 0; + } + p_track->stts_entry_count = 0; + return 0; + } else { + for (i = 0; i < f->track[f->total_tracks - 1]->stts_entry_count && !f->stream->read_error; i++) { /* CVE-2017-9254 */ + p_track->stts_sample_count[i] = mp4ff_read_int32(f); + p_track->stts_sample_delta[i] = mp4ff_read_int32(f); + } + return 1; + } } -static int32_t mp4ff_read_stsz(mp4ff_t *f) +static int32_t mp4ff_read_ctts(mp4ff_t * f) { - if (f->total_tracks == 0) - return f->error++; + int32_t i; + mp4ff_track_t *p_track; - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - f->track[f->total_tracks - 1]->stsz_sample_size = mp4ff_read_int32(f); - f->track[f->total_tracks - 1]->stsz_sample_count = mp4ff_read_int32(f); + if (f->total_tracks == 0) + return f->error++; - if (f->track[f->total_tracks - 1]->stsz_sample_size == 0) - { - int32_t i; - f->track[f->total_tracks - 1]->stsz_table = - (int32_t*)malloc(f->track[f->total_tracks - 1]->stsz_sample_count*sizeof(int32_t)); + p_track = f->track[f->total_tracks - 1]; + if (p_track->ctts_entry_count) + return 0; - if (!f->track[f->total_tracks - 1]->stsz_table) - return f->error++; + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + p_track->ctts_entry_count = mp4ff_read_int32(f); - for (i = 0; i < f->track[f->total_tracks - 1]->stsz_sample_count && !f->stream->read_error; i++) - { - f->track[f->total_tracks - 1]->stsz_table[i] = mp4ff_read_int32(f); - } - } + p_track->ctts_sample_count = (int32_t *)malloc(p_track->ctts_entry_count + * sizeof (int32_t)); + p_track->ctts_sample_offset = (int32_t *)malloc(p_track->ctts_entry_count + * sizeof (int32_t)); - return 0; + if (p_track->ctts_sample_count == 0 || p_track->ctts_sample_offset == 0) { + if (p_track->ctts_sample_count) { + free(p_track->ctts_sample_count); + p_track->ctts_sample_count = 0; + } + if (p_track->ctts_sample_offset) { + free(p_track->ctts_sample_offset); + p_track->ctts_sample_offset = 0; + } + p_track->ctts_entry_count = 0; + return 0; + } else { + for (i = 0; i < f->track[f->total_tracks - 1]->ctts_entry_count && !f->stream->read_error; i++) { /* CVE-2017-9257 */ + p_track->ctts_sample_count[i] = mp4ff_read_int32(f); + p_track->ctts_sample_offset[i] = mp4ff_read_int32(f); + } + return 1; + } } -static int32_t mp4ff_read_stts(mp4ff_t *f) +static int32_t mp4ff_read_stsc(mp4ff_t * f) { - int32_t i; - mp4ff_track_t * p_track; + int32_t i; - /* CVE-2017-9223 */ - if (f->total_tracks == 0) - return f->error++; + if (f->total_tracks == 0) + return f->error++; - p_track = f->track[f->total_tracks - 1]; + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + f->track[f->total_tracks - 1]->stsc_entry_count = mp4ff_read_int32(f); - if (p_track->stts_entry_count) return 0; + f->track[f->total_tracks - 1]->stsc_first_chunk = + (int32_t *) malloc(f->track[f->total_tracks - 1]->stsc_entry_count * + sizeof (int32_t)); + f->track[f->total_tracks - 1]->stsc_samples_per_chunk = + (int32_t *) malloc(f->track[f->total_tracks - 1]->stsc_entry_count * + sizeof (int32_t)); + f->track[f->total_tracks - 1]->stsc_sample_desc_index = + (int32_t *) malloc(f->track[f->total_tracks - 1]->stsc_entry_count * + sizeof (int32_t)); - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - p_track->stts_entry_count = mp4ff_read_int32(f); + /* CVE-2017-9219 */ + if (!f->track[f->total_tracks - 1]->stsc_first_chunk) { + return f->error++; + } + if (!f->track[f->total_tracks - 1]->stsc_samples_per_chunk) { + free(f->track[f->total_tracks - 1]->stsc_first_chunk); + f->track[f->total_tracks - 1]->stsc_first_chunk = NULL; + return f->error++; + } + if (!f->track[f->total_tracks - 1]->stsc_sample_desc_index) { + free(f->track[f->total_tracks - 1]->stsc_first_chunk); + f->track[f->total_tracks - 1]->stsc_first_chunk = NULL; + free(f->track[f->total_tracks - 1]->stsc_samples_per_chunk); + f->track[f->total_tracks - 1]->stsc_samples_per_chunk = NULL; + return f->error++; + } + + for (i = 0; i < f->track[f->total_tracks - 1]->stsc_entry_count && !f->stream->read_error; i++) { /* CVE-2017-9255 */ + f->track[f->total_tracks - 1]->stsc_first_chunk[i] = + mp4ff_read_int32(f); + f->track[f->total_tracks - 1]->stsc_samples_per_chunk[i] = + mp4ff_read_int32(f); + f->track[f->total_tracks - 1]->stsc_sample_desc_index[i] = + mp4ff_read_int32(f); + } - p_track->stts_sample_count = (int32_t*)malloc(p_track->stts_entry_count * sizeof(int32_t)); - p_track->stts_sample_delta = (int32_t*)malloc(p_track->stts_entry_count * sizeof(int32_t)); - - if (p_track->stts_sample_count == 0 || p_track->stts_sample_delta == 0) - { - if (p_track->stts_sample_count) {free(p_track->stts_sample_count);p_track->stts_sample_count=0;} - if (p_track->stts_sample_delta) {free(p_track->stts_sample_delta);p_track->stts_sample_delta=0;} - p_track->stts_entry_count = 0; - return 0; - } - else - { - for (i = 0; i < f->track[f->total_tracks - 1]->stts_entry_count && !f->stream->read_error; i++) /* CVE-2017-9254 */ - { - p_track->stts_sample_count[i] = mp4ff_read_int32(f); - p_track->stts_sample_delta[i] = mp4ff_read_int32(f); - } - return 1; - } -} - -static int32_t mp4ff_read_ctts(mp4ff_t *f) + return 0; +} + +static int32_t mp4ff_read_stco(mp4ff_t * f) { - int32_t i; - mp4ff_track_t * p_track; - - if (f->total_tracks == 0) - return f->error++; - - p_track = f->track[f->total_tracks - 1]; - if (p_track->ctts_entry_count) return 0; + int32_t i; + + if (f->total_tracks == 0) + return f->error++; + + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + f->track[f->total_tracks - 1]->stco_entry_count = mp4ff_read_int32(f); - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - p_track->ctts_entry_count = mp4ff_read_int32(f); + f->track[f->total_tracks - 1]->stco_chunk_offset = + (int32_t *) malloc(f->track[f->total_tracks - 1]->stco_entry_count * + sizeof (int32_t)); - p_track->ctts_sample_count = (int32_t*)malloc(p_track->ctts_entry_count * sizeof(int32_t)); - p_track->ctts_sample_offset = (int32_t*)malloc(p_track->ctts_entry_count * sizeof(int32_t)); - - if (p_track->ctts_sample_count == 0 || p_track->ctts_sample_offset == 0) - { - if (p_track->ctts_sample_count) {free(p_track->ctts_sample_count);p_track->ctts_sample_count=0;} - if (p_track->ctts_sample_offset) {free(p_track->ctts_sample_offset);p_track->ctts_sample_offset=0;} - p_track->ctts_entry_count = 0; - return 0; - } - else - { - for (i = 0; i < f->track[f->total_tracks - 1]->ctts_entry_count && !f->stream->read_error; i++) /* CVE-2017-9257 */ - { - p_track->ctts_sample_count[i] = mp4ff_read_int32(f); - p_track->ctts_sample_offset[i] = mp4ff_read_int32(f); - } - return 1; - } + /* CVE-2017-9220 */ + if (!f->track[f->total_tracks - 1]->stco_chunk_offset) + return f->error++; + + for (i = 0; i < f->track[f->total_tracks - 1]->stco_entry_count && !f->stream->read_error; i++) { /* CVE-2017-9256 */ + f->track[f->total_tracks - 1]->stco_chunk_offset[i] = + mp4ff_read_int32(f); + } + + return 0; } -static int32_t mp4ff_read_stsc(mp4ff_t *f) +uint16_t mp4ff_read_int16(mp4ff_t * f) { - int32_t i; + uint32_t result; + uint32_t a, b; + int8_t data[2]; - if (f->total_tracks == 0) - return f->error++; + mp4ff_read_data(f, data, 2); + a = (uint8_t) data[0]; + b = (uint8_t) data[1]; - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - f->track[f->total_tracks - 1]->stsc_entry_count = mp4ff_read_int32(f); + result = (a << 8) | b; + return (uint16_t) result; +} + +uint32_t mp4ff_read_mp4_descr_length(mp4ff_t * f) +{ + uint8_t b; + uint8_t numBytes = 0; + uint32_t length = 0; - f->track[f->total_tracks - 1]->stsc_first_chunk = - (int32_t*)malloc(f->track[f->total_tracks - 1]->stsc_entry_count*sizeof(int32_t)); - f->track[f->total_tracks - 1]->stsc_samples_per_chunk = - (int32_t*)malloc(f->track[f->total_tracks - 1]->stsc_entry_count*sizeof(int32_t)); - f->track[f->total_tracks - 1]->stsc_sample_desc_index = - (int32_t*)malloc(f->track[f->total_tracks - 1]->stsc_entry_count*sizeof(int32_t)); + do { + b = mp4ff_read_char(f); + numBytes++; + length = (length << 7) | (b & 0x7F); + } while ((b & 0x80) && numBytes < 4); - /* CVE-2017-9219 */ - if (!f->track[f->total_tracks - 1]->stsc_first_chunk) - { - return f->error++; - } - if (!f->track[f->total_tracks - 1]->stsc_samples_per_chunk) - { - free(f->track[f->total_tracks - 1]->stsc_first_chunk); - f->track[f->total_tracks - 1]->stsc_first_chunk = NULL; - return f->error++; - } - if (!f->track[f->total_tracks - 1]->stsc_sample_desc_index) - { - free(f->track[f->total_tracks - 1]->stsc_first_chunk); - f->track[f->total_tracks - 1]->stsc_first_chunk = NULL; - free(f->track[f->total_tracks - 1]->stsc_samples_per_chunk); - f->track[f->total_tracks - 1]->stsc_samples_per_chunk = NULL; - return f->error++; - } - - for (i = 0; i < f->track[f->total_tracks - 1]->stsc_entry_count && !f->stream->read_error; i++) /* CVE-2017-9255 */ - { - f->track[f->total_tracks - 1]->stsc_first_chunk[i] = mp4ff_read_int32(f); - f->track[f->total_tracks - 1]->stsc_samples_per_chunk[i] = mp4ff_read_int32(f); - f->track[f->total_tracks - 1]->stsc_sample_desc_index[i] = mp4ff_read_int32(f); - } - - return 0; -} - -static int32_t mp4ff_read_stco(mp4ff_t *f) -{ - int32_t i; - - if (f->total_tracks == 0) - return f->error++; - - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - f->track[f->total_tracks - 1]->stco_entry_count = mp4ff_read_int32(f); - - f->track[f->total_tracks - 1]->stco_chunk_offset = - (int32_t*)malloc(f->track[f->total_tracks - 1]->stco_entry_count*sizeof(int32_t)); - - /* CVE-2017-9220 */ - if (!f->track[f->total_tracks - 1]->stco_chunk_offset) - return f->error++; - - for (i = 0; i < f->track[f->total_tracks - 1]->stco_entry_count && !f->stream->read_error; i++) /* CVE-2017-9256 */ - { - f->track[f->total_tracks - 1]->stco_chunk_offset[i] = mp4ff_read_int32(f); - } - - return 0; -} - -uint16_t mp4ff_read_int16(mp4ff_t *f) -{ - uint32_t result; - uint32_t a, b; - int8_t data[2]; - - mp4ff_read_data(f, data, 2); - a = (uint8_t)data[0]; - b = (uint8_t)data[1]; - - result = (a<<8) | b; - return (uint16_t)result; -} - - -uint32_t mp4ff_read_mp4_descr_length(mp4ff_t *f) -{ - uint8_t b; - uint8_t numBytes = 0; - uint32_t length = 0; - - do - { - b = mp4ff_read_char(f); - numBytes++; - length = (length << 7) | (b & 0x7F); - } while ((b & 0x80) && numBytes < 4); - - return length; -} -static int32_t mp4ff_read_esds(mp4ff_t *f) -{ - uint8_t tag; - uint32_t temp; - - if (f->total_tracks == 0) - return f->error++; - - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ + return length; +} +static int32_t mp4ff_read_esds(mp4ff_t * f) +{ + uint8_t tag; + uint32_t temp; - /* get and verify ES_DescrTag */ - tag = mp4ff_read_char(f); - if (tag == 0x03) - { - /* read length */ - if (mp4ff_read_mp4_descr_length(f) < 5 + 15) - { - return 1; - } - /* skip 3 bytes */ - mp4ff_read_int24(f); - } else { - /* skip 2 bytes */ - mp4ff_read_int16(f); - } + if (f->total_tracks == 0) + return f->error++; - /* get and verify DecoderConfigDescrTab */ - if (mp4ff_read_char(f) != 0x04) - { - return 1; - } + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ - /* read length */ - temp = mp4ff_read_mp4_descr_length(f); - if (temp < 13) return 1; + /* get and verify ES_DescrTag */ + tag = mp4ff_read_char(f); + if (tag == 0x03) { + /* read length */ + if (mp4ff_read_mp4_descr_length(f) < 5 + 15) { + return 1; + } + /* skip 3 bytes */ + mp4ff_read_int24(f); + } else { + /* skip 2 bytes */ + mp4ff_read_int16(f); + } - f->track[f->total_tracks - 1]->audioType = mp4ff_read_char(f); - mp4ff_read_int32(f);//0x15000414 ???? - f->track[f->total_tracks - 1]->maxBitrate = mp4ff_read_int32(f); - f->track[f->total_tracks - 1]->avgBitrate = mp4ff_read_int32(f); + /* get and verify DecoderConfigDescrTab */ + if (mp4ff_read_char(f) != 0x04) { + return 1; + } - /* get and verify DecSpecificInfoTag */ - if (mp4ff_read_char(f) != 0x05) - { - return 1; - } + /* read length */ + temp = mp4ff_read_mp4_descr_length(f); + if (temp < 13) + return 1; - /* read length */ - f->track[f->total_tracks - 1]->decoderConfigLen = mp4ff_read_mp4_descr_length(f); + f->track[f->total_tracks - 1]->audioType = mp4ff_read_char(f); + mp4ff_read_int32(f); //0x15000414 ???? + f->track[f->total_tracks - 1]->maxBitrate = mp4ff_read_int32(f); + f->track[f->total_tracks - 1]->avgBitrate = mp4ff_read_int32(f); - if (f->track[f->total_tracks - 1]->decoderConfig) - free(f->track[f->total_tracks - 1]->decoderConfig); - f->track[f->total_tracks - 1]->decoderConfig = malloc(f->track[f->total_tracks - 1]->decoderConfigLen); - if (f->track[f->total_tracks - 1]->decoderConfig) - { - mp4ff_read_data(f, f->track[f->total_tracks - 1]->decoderConfig, f->track[f->total_tracks - 1]->decoderConfigLen); - } else { - f->track[f->total_tracks - 1]->decoderConfigLen = 0; - } - - /* will skip the remainder of the atom */ - return 0; -} -static int32_t mp4ff_read_mp4a(mp4ff_t *f) -{ - uint64_t size; - int32_t i; - uint8_t atom_type = 0; - uint8_t header_size = 0; - - if (f->total_tracks == 0) - return f->error++; - - for (i = 0; i < 6; i++) - { - mp4ff_read_char(f); /* reserved */ - } - /* data_reference_index */ mp4ff_read_int16(f); + /* get and verify DecSpecificInfoTag */ + if (mp4ff_read_char(f) != 0x05) { + return 1; + } - mp4ff_read_int32(f); /* reserved */ - mp4ff_read_int32(f); /* reserved */ - - f->track[f->total_tracks - 1]->channelCount = mp4ff_read_int16(f); - f->track[f->total_tracks - 1]->sampleSize = mp4ff_read_int16(f); - - mp4ff_read_int16(f); - mp4ff_read_int16(f); - - f->track[f->total_tracks - 1]->sampleRate = mp4ff_read_int16(f); - - mp4ff_read_int16(f); - - size = mp4ff_atom_read_header(f, &atom_type, &header_size); - if (atom_type == ATOM_ESDS) - { - mp4ff_read_esds(f); - } - - return 0; -} - -static int32_t mp4ff_read_stsd(mp4ff_t *f) -{ - int32_t i; - uint8_t header_size = 0; - - /* CVE-2017-9218 */ - if (f->total_tracks == 0) - return f->error++; - - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - - f->track[f->total_tracks - 1]->stsd_entry_count = mp4ff_read_int32(f); - - for (i = 0; i < f->track[f->total_tracks - 1]->stsd_entry_count && !f->stream->read_error; i++) /* CVE-2017-9253 */ - { - uint64_t skip = mp4ff_position(f); - uint64_t size; - uint8_t atom_type = 0; - size = mp4ff_atom_read_header(f, &atom_type, &header_size); - skip += size; - - if (atom_type == ATOM_MP4A) - { - f->track[f->total_tracks - 1]->type = TRACK_AUDIO; - mp4ff_read_mp4a(f); - } else if (atom_type == ATOM_MP4V) { - f->track[f->total_tracks - 1]->type = TRACK_VIDEO; - } else if (atom_type == ATOM_MP4S) { - f->track[f->total_tracks - 1]->type = TRACK_SYSTEM; - } else { - f->track[f->total_tracks - 1]->type = TRACK_UNKNOWN; - } - - mp4ff_set_position(f, skip); - } - - return 0; -} - -static int32_t mp4ff_read_mvhd(mp4ff_t *f) -{ - int32_t i; - - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - /* creation_time */ mp4ff_read_int32(f); - /* modification_time */ mp4ff_read_int32(f); - f->time_scale = mp4ff_read_int32(f); - f->duration = mp4ff_read_int32(f); - /* preferred_rate */ mp4ff_read_int32(f); /*mp4ff_read_fixed32(f);*/ - /* preferred_volume */ mp4ff_read_int16(f); /*mp4ff_read_fixed16(f);*/ - for (i = 0; i < 10; i++) - { - /* reserved */ mp4ff_read_char(f); - } - for (i = 0; i < 9; i++) - { - mp4ff_read_int32(f); /* matrix */ - } - /* preview_time */ mp4ff_read_int32(f); - /* preview_duration */ mp4ff_read_int32(f); - /* poster_time */ mp4ff_read_int32(f); - /* selection_time */ mp4ff_read_int32(f); - /* selection_duration */ mp4ff_read_int32(f); - /* current_time */ mp4ff_read_int32(f); - /* next_track_id */ mp4ff_read_int32(f); - - return 0; -} - -static int32_t mp4ff_tag_add_field(mp4ff_metadata_t *tags, const char *item, const char *value, int32_t len) -{ - void *backup = (void *)tags->tags; - - if (!item || (item && !*item) || !value) return 0; - - tags->tags = (mp4ff_tag_t*)realloc(tags->tags, (tags->count+1) * sizeof(mp4ff_tag_t)); - if (!tags->tags) - { - if (backup) free(backup); - return 0; - } else { - tags->tags[tags->count].item = strdup(item); - tags->tags[tags->count].len = len; - if (len >= 0) { - tags->tags[tags->count].value = malloc(len + 1); - if (tags->tags[tags->count].value != NULL) { - memcpy(tags->tags[tags->count].value, value, len); - tags->tags[tags->count].value[len] = 0; - } - } - else { - tags->tags[tags->count].value = strdup(value); - } - - if (!tags->tags[tags->count].item || !tags->tags[tags->count].value) - { - if (!tags->tags[tags->count].item) free (tags->tags[tags->count].item); - if (!tags->tags[tags->count].value) free (tags->tags[tags->count].value); - tags->tags[tags->count].item = NULL; - tags->tags[tags->count].value = NULL; - tags->tags[tags->count].len = 0; - return 0; - } - - tags->count++; - return 1; - } -} - -static const char* ID3v1GenreList[] = { - "Blues", "Classic Rock", "Country", "Dance", "Disco", "Funk", - "Grunge", "Hip-Hop", "Jazz", "Metal", "New Age", "Oldies", - "Other", "Pop", "R&B", "Rap", "Reggae", "Rock", - "Techno", "Industrial", "Alternative", "Ska", "Death Metal", "Pranks", - "Soundtrack", "Euro-Techno", "Ambient", "Trip-Hop", "Vocal", "Jazz+Funk", - "Fusion", "Trance", "Classical", "Instrumental", "Acid", "House", - "Game", "Sound Clip", "Gospel", "Noise", "AlternRock", "Bass", - "Soul", "Punk", "Space", "Meditative", "Instrumental Pop", "Instrumental Rock", - "Ethnic", "Gothic", "Darkwave", "Techno-Industrial", "Electronic", "Pop-Folk", - "Eurodance", "Dream", "Southern Rock", "Comedy", "Cult", "Gangsta", - "Top 40", "Christian Rap", "Pop/Funk", "Jungle", "Native American", "Cabaret", - "New Wave", "Psychadelic", "Rave", "Showtunes", "Trailer", "Lo-Fi", - "Tribal", "Acid Punk", "Acid Jazz", "Polka", "Retro", "Musical", - "Rock & Roll", "Hard Rock", "Folk", "Folk/Rock", "National Folk", "Swing", - "Fast-Fusion", "Bebob", "Latin", "Revival", "Celtic", "Bluegrass", "Avantgarde", - "Gothic Rock", "Progressive Rock", "Psychedelic Rock", "Symphonic Rock", "Slow Rock", "Big Band", - "Chorus", "Easy Listening", "Acoustic", "Humour", "Speech", "Chanson", - "Opera", "Chamber Music", "Sonata", "Symphony", "Booty Bass", "Primus", - "Porn Groove", "Satire", "Slow Jam", "Club", "Tango", "Samba", - "Folklore", "Ballad", "Power Ballad", "Rhythmic Soul", "Freestyle", "Duet", - "Punk Rock", "Drum Solo", "A capella", "Euro-House", "Dance Hall", - "Goa", "Drum & Bass", "Club House", "Hardcore", "Terror", - "Indie", "BritPop", "NegerPunk", "Polsk Punk", "Beat", - "Christian Gangsta", "Heavy Metal", "Black Metal", "Crossover", "Contemporary C", - "Christian Rock", "Merengue", "Salsa", "Thrash Metal", "Anime", "JPop", - "SynthPop", -}; + /* read length */ + f->track[f->total_tracks - 1]->decoderConfigLen = + mp4ff_read_mp4_descr_length(f); + + if (f->track[f->total_tracks - 1]->decoderConfig) + free(f->track[f->total_tracks - 1]->decoderConfig); + f->track[f->total_tracks - 1]->decoderConfig = + malloc(f->track[f->total_tracks - 1]->decoderConfigLen); + if (f->track[f->total_tracks - 1]->decoderConfig) { + mp4ff_read_data(f, f->track[f->total_tracks - 1]->decoderConfig, + f->track[f->total_tracks - + 1]->decoderConfigLen); + } else { + f->track[f->total_tracks - 1]->decoderConfigLen = 0; + } -const char * mp4ff_meta_index_to_genre(uint32_t idx) + /* will skip the remainder of the atom */ + return 0; +} +static int32_t mp4ff_read_mp4a(mp4ff_t * f) { - if (idx>0 && idx<=sizeof(ID3v1GenreList)/sizeof(ID3v1GenreList[0])) - { - return ID3v1GenreList[idx-1]; + uint64_t size; + int32_t i; + uint8_t atom_type = 0; + uint8_t header_size = 0; + + if (f->total_tracks == 0) + return f->error++; + + for (i = 0; i < 6; i++) { + mp4ff_read_char(f); /* reserved */ } - else - { + /* data_reference_index */ mp4ff_read_int16(f); + + mp4ff_read_int32(f); /* reserved */ + mp4ff_read_int32(f); /* reserved */ + + f->track[f->total_tracks - 1]->channelCount = mp4ff_read_int16(f); + f->track[f->total_tracks - 1]->sampleSize = mp4ff_read_int16(f); + + mp4ff_read_int16(f); + mp4ff_read_int16(f); + + f->track[f->total_tracks - 1]->sampleRate = mp4ff_read_int16(f); + + mp4ff_read_int16(f); + + size = mp4ff_atom_read_header(f, &atom_type, &header_size); + if (atom_type == ATOM_ESDS) { + mp4ff_read_esds(f); + } + + return 0; +} + +static int32_t mp4ff_read_stsd(mp4ff_t * f) +{ + int32_t i; + uint8_t header_size = 0; + + /* CVE-2017-9218 */ + if (f->total_tracks == 0) + return f->error++; + + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + + f->track[f->total_tracks - 1]->stsd_entry_count = mp4ff_read_int32(f); + + for (i = 0; i < f->track[f->total_tracks - 1]->stsd_entry_count && !f->stream->read_error; i++) { /* CVE-2017-9253 */ + uint64_t skip = mp4ff_position(f); + uint64_t size; + uint8_t atom_type = 0; + size = mp4ff_atom_read_header(f, &atom_type, &header_size); + skip += size; + + if (atom_type == ATOM_MP4A) { + f->track[f->total_tracks - 1]->type = TRACK_AUDIO; + mp4ff_read_mp4a(f); + } else if (atom_type == ATOM_MP4V) { + f->track[f->total_tracks - 1]->type = TRACK_VIDEO; + } else if (atom_type == ATOM_MP4S) { + f->track[f->total_tracks - 1]->type = TRACK_SYSTEM; + } else { + f->track[f->total_tracks - 1]->type = TRACK_UNKNOWN; + } + + mp4ff_set_position(f, skip); + } + + return 0; +} + +static int32_t mp4ff_read_mvhd(mp4ff_t * f) +{ + int32_t i; + + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + /* creation_time */ mp4ff_read_int32(f); + /* modification_time */ mp4ff_read_int32(f); + f->time_scale = mp4ff_read_int32(f); + f->duration = mp4ff_read_int32(f); + /* preferred_rate */ mp4ff_read_int32(f); + /*mp4ff_read_fixed32(f); */ + /* preferred_volume */ mp4ff_read_int16(f); + /*mp4ff_read_fixed16(f); */ + for (i = 0; i < 10; i++) { + /* reserved */ mp4ff_read_char(f); + } + for (i = 0; i < 9; i++) { + mp4ff_read_int32(f); /* matrix */ + } + /* preview_time */ mp4ff_read_int32(f); + /* preview_duration */ mp4ff_read_int32(f); + /* poster_time */ mp4ff_read_int32(f); + /* selection_time */ mp4ff_read_int32(f); + /* selection_duration */ mp4ff_read_int32(f); + /* current_time */ mp4ff_read_int32(f); + /* next_track_id */ mp4ff_read_int32(f); + + return 0; +} + +static int32_t mp4ff_tag_add_field(mp4ff_metadata_t * tags, const char *item, + char *value, int32_t len) +{ + void *backup = (void *) tags->tags; + + if (!item || (item && !*item) || !value) return 0; + + tags->tags = (mp4ff_tag_t *) realloc(tags->tags, + (tags->count + 1) * sizeof (mp4ff_tag_t)); + if (!tags->tags) { + if (backup) + free(backup); + return 0; + } else { + tags->tags[tags->count].item = strdup(item); + tags->tags[tags->count].len = len; + if (len >= 0) { + tags->tags[tags->count].value = malloc(len + 1); + if (tags->tags[tags->count].value != NULL) { + memcpy(tags->tags[tags->count].value, value, len); + tags->tags[tags->count].value[len] = 0; + } + } else { + tags->tags[tags->count].value = strdup(value); + } + + if (!tags->tags[tags->count].item || !tags->tags[tags->count].value) { + if (!tags->tags[tags->count].item) + free(tags->tags[tags->count].item); + if (!tags->tags[tags->count].value) + free(tags->tags[tags->count].value); + tags->tags[tags->count].item = NULL; + tags->tags[tags->count].value = NULL; + tags->tags[tags->count].len = 0; + return 0; + } + + tags->count++; + return 1; } } -char * mp4ff_read_string(mp4ff_t * f,uint32_t length) +static const char *ID3v1GenreList[] = { + "Blues", "Classic Rock", "Country", "Dance", "Disco", "Funk", + "Grunge", "Hip-Hop", "Jazz", "Metal", "New Age", "Oldies", + "Other", "Pop", "R&B", "Rap", "Reggae", "Rock", + "Techno", "Industrial", "Alternative", "Ska", "Death Metal", "Pranks", + "Soundtrack", "Euro-Techno", "Ambient", "Trip-Hop", "Vocal", + "Jazz+Funk", "Fusion", "Trance", "Classical", "Instrumental", "Acid", + "House", "Game", "Sound Clip", "Gospel", "Noise", "AlternRock", "Bass", + "Soul", "Punk", "Space", "Meditative", "Instrumental Pop", + "Instrumental Rock", "Ethnic", "Gothic", "Darkwave", + "Techno-Industrial", "Electronic", "Pop-Folk", "Eurodance", "Dream", + "Southern Rock", "Comedy", "Cult", "Gangsta", "Top 40", + "Christian Rap", "Pop/Funk", "Jungle", "Native American", "Cabaret", + "New Wave", "Psychadelic", "Rave", "Showtunes", "Trailer", "Lo-Fi", + "Tribal", "Acid Punk", "Acid Jazz", "Polka", "Retro", "Musical", + "Rock & Roll", "Hard Rock", "Folk", "Folk/Rock", "National Folk", + "Swing", "Fast-Fusion", "Bebob", "Latin", "Revival", "Celtic", + "Bluegrass", "Avantgarde", "Gothic Rock", "Progressive Rock", + "Psychedelic Rock", "Symphonic Rock", "Slow Rock", "Big Band", + "Chorus", "Easy Listening", "Acoustic", "Humour", "Speech", "Chanson", + "Opera", "Chamber Music", "Sonata", "Symphony", "Booty Bass", "Primus", + "Porn Groove", "Satire", "Slow Jam", "Club", "Tango", "Samba", + "Folklore", "Ballad", "Power Ballad", "Rhythmic Soul", "Freestyle", + "Duet", "Punk Rock", "Drum Solo", "A capella", "Euro-House", + "Dance Hall", "Goa", "Drum & Bass", "Club House", "Hardcore", "Terror", + "Indie", "BritPop", "NegerPunk", "Polsk Punk", "Beat", + "Christian Gangsta", "Heavy Metal", "Black Metal", "Crossover", + "Contemporary C", "Christian Rock", "Merengue", "Salsa", "Thrash Metal", + "Anime", "JPop", "SynthPop", +}; + +const char *mp4ff_meta_index_to_genre(uint32_t idx) { - char * str = (char*)malloc(length + 1); - if (str!=0) - { - if ((uint32_t)mp4ff_read_data(f,str,length)!=length) - { + if (idx > 0 && idx <= sizeof (ID3v1GenreList) / sizeof (ID3v1GenreList[0])) { + return ID3v1GenreList[idx - 1]; + } else { + return 0; + } +} + +char *mp4ff_read_string(mp4ff_t * f, uint32_t length) +{ + char *str = (char *) malloc(length + 1); + if (str != 0) { + if ((uint32_t) mp4ff_read_data(f, str, length) != length) { free(str); str = 0; - } - else - { + } else { str[length] = 0; } } - return str; + return str; } -static int32_t mp4ff_set_metadata_name(mp4ff_t *f, const uint8_t atom_type, char **name) +static int32_t mp4ff_set_metadata_name(mp4ff_t * f, const uint8_t atom_type, + char **name) { - static char *tag_names[] = { - "unknown", "title", "artist", "writer", "album", - "date", "tool", "comment", "genre", "track", - "disc", "compilation", "genre", "tempo", "cover", + static char *tag_names[] = { + "unknown", "title", "artist", "writer", "album", + "date", "tool", "comment", "genre", "track", + "disc", "compilation", "genre", "tempo", "cover", "album_artist", "contentgroup", "lyrics", "description", - "network", "show", "episodename", - "sorttitle", "sortalbum", "sortartist", "sortalbumartist", - "sortwriter", "sortshow", - "season", "episode", "podcast" - - }; - uint8_t tag_idx = 0; - - switch (atom_type) - { - case ATOM_TITLE: tag_idx = 1; break; - case ATOM_ARTIST: tag_idx = 2; break; - case ATOM_WRITER: tag_idx = 3; break; - case ATOM_ALBUM: tag_idx = 4; break; - case ATOM_DATE: tag_idx = 5; break; - case ATOM_TOOL: tag_idx = 6; break; - case ATOM_COMMENT: tag_idx = 7; break; - case ATOM_GENRE1: tag_idx = 8; break; - case ATOM_TRACK: tag_idx = 9; break; - case ATOM_DISC: tag_idx = 10; break; - case ATOM_COMPILATION: tag_idx = 11; break; - case ATOM_GENRE2: tag_idx = 12; break; - case ATOM_TEMPO: tag_idx = 13; break; - case ATOM_COVER: tag_idx = 14; break; - case ATOM_ALBUM_ARTIST: tag_idx = 15; break; - case ATOM_CONTENTGROUP: tag_idx = 16; break; - case ATOM_LYRICS: tag_idx = 17; break; - case ATOM_DESCRIPTION: tag_idx = 18; break; - case ATOM_NETWORK: tag_idx = 19; break; - case ATOM_SHOW: tag_idx = 20; break; - case ATOM_EPISODENAME: tag_idx = 21; break; - case ATOM_SORTTITLE: tag_idx = 22; break; - case ATOM_SORTALBUM: tag_idx = 23; break; - case ATOM_SORTARTIST: tag_idx = 24; break; - case ATOM_SORTALBUMARTIST: tag_idx = 25; break; - case ATOM_SORTWRITER: tag_idx = 26; break; - case ATOM_SORTSHOW: tag_idx = 27; break; - case ATOM_SEASON: tag_idx = 28; break; - case ATOM_EPISODE: tag_idx = 29; break; - case ATOM_PODCAST: tag_idx = 30; break; - default: tag_idx = 0; break; - } + "network", "show", "episodename", + "sorttitle", "sortalbum", "sortartist", "sortalbumartist", + "sortwriter", "sortshow", + "season", "episode", "podcast" + }; + uint8_t tag_idx = 0; + + switch (atom_type) { + case ATOM_TITLE: + tag_idx = 1; + break; + case ATOM_ARTIST: + tag_idx = 2; + break; + case ATOM_WRITER: + tag_idx = 3; + break; + case ATOM_ALBUM: + tag_idx = 4; + break; + case ATOM_DATE: + tag_idx = 5; + break; + case ATOM_TOOL: + tag_idx = 6; + break; + case ATOM_COMMENT: + tag_idx = 7; + break; + case ATOM_GENRE1: + tag_idx = 8; + break; + case ATOM_TRACK: + tag_idx = 9; + break; + case ATOM_DISC: + tag_idx = 10; + break; + case ATOM_COMPILATION: + tag_idx = 11; + break; + case ATOM_GENRE2: + tag_idx = 12; + break; + case ATOM_TEMPO: + tag_idx = 13; + break; + case ATOM_COVER: + tag_idx = 14; + break; + case ATOM_ALBUM_ARTIST: + tag_idx = 15; + break; + case ATOM_CONTENTGROUP: + tag_idx = 16; + break; + case ATOM_LYRICS: + tag_idx = 17; + break; + case ATOM_DESCRIPTION: + tag_idx = 18; + break; + case ATOM_NETWORK: + tag_idx = 19; + break; + case ATOM_SHOW: + tag_idx = 20; + break; + case ATOM_EPISODENAME: + tag_idx = 21; + break; + case ATOM_SORTTITLE: + tag_idx = 22; + break; + case ATOM_SORTALBUM: + tag_idx = 23; + break; + case ATOM_SORTARTIST: + tag_idx = 24; + break; + case ATOM_SORTALBUMARTIST: + tag_idx = 25; + break; + case ATOM_SORTWRITER: + tag_idx = 26; + break; + case ATOM_SORTSHOW: + tag_idx = 27; + break; + case ATOM_SEASON: + tag_idx = 28; + break; + case ATOM_EPISODE: + tag_idx = 29; + break; + case ATOM_PODCAST: + tag_idx = 30; + break; + default: + tag_idx = 0; + break; + } *name = strdup(tag_names[tag_idx]); - return 0; + return 0; } -static int32_t mp4ff_parse_tag(mp4ff_t *f, const uint8_t parent_atom_type, const int32_t size) + +static int32_t mp4ff_parse_tag(mp4ff_t * f, const uint8_t parent_atom_type, + const int32_t size) { - uint8_t atom_type; - uint8_t header_size = 0; - uint64_t subsize, sumsize = 0; - char * name = NULL; - char * data = NULL; + uint8_t atom_type; + uint8_t header_size = 0; + uint64_t subsize, sumsize = 0; + char *name = NULL; + char *data = NULL; uint32_t done = 0; - uint32_t len = 0; + uint32_t len = 0; - - while (sumsize < size && !f->stream->read_error) /* CVE-2017-9222 */ - { + while (sumsize < size && !f->stream->read_error) { /* CVE-2017-9222 */ uint64_t destpos; - subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); - destpos = mp4ff_position(f)+subsize-header_size; - if (!done) - { - if (atom_type == ATOM_DATA) - { - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - mp4ff_read_int32(f); /* reserved */ + subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); + destpos = mp4ff_position(f) + subsize - header_size; + if (!done) { + if (atom_type == ATOM_DATA) { + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + mp4ff_read_int32(f); /* reserved */ /* some need special attention */ - if (parent_atom_type == ATOM_GENRE2 || parent_atom_type == ATOM_TEMPO) - { - if (subsize - header_size >= 8 + 2) - { + if (parent_atom_type == ATOM_GENRE2 || parent_atom_type == ATOM_TEMPO) { + if (subsize - header_size >= 8 + 2) { uint16_t val = mp4ff_read_int16(f); - if (parent_atom_type == ATOM_TEMPO) - { + if (parent_atom_type == ATOM_TEMPO) { char temp[16]; - sprintf(temp, "%.5u BPM", val); - mp4ff_tag_add_field(&(f->tags), "tempo", temp, -1); - } - else - { - const char * temp = mp4ff_meta_index_to_genre(val); - if (temp) - { - mp4ff_tag_add_field(&(f->tags), "genre", temp, -1); + sprintf(temp, + "%.5u BPM", + val); + mp4ff_tag_add_field(&(f-> tags), "tempo", temp, -1); + } else { + const char *temp = mp4ff_meta_index_to_genre(val); + if (temp) { + mp4ff_tag_add_field (&(f->tags), "genre", temp, -1); } } done = 1; @@ -1017,617 +1083,611 @@ static int32_t mp4ff_parse_tag(mp4ff_t *f, const uint8_t parent_atom_type, const } else if (parent_atom_type == ATOM_TRACK || parent_atom_type == ATOM_DISC) { /* if (!done && subsize - header_size >= 8 + 8) */ /* modified by AJS */ - if ( !done && (subsize - header_size) >= - (sizeof(char) + sizeof(uint8_t)*3 + sizeof(uint32_t) + /* version + flags + reserved */ - + (parent_atom_type == ATOM_TRACK ? sizeof(uint16_t) : 0) /* leading uint16_t if ATOM_TRACK */ - + sizeof(uint16_t) /* track / disc */ - + sizeof(uint16_t)) /* totaltracks / totaldiscs */ - ) - { - uint16_t index,total; + if (!done && (subsize - header_size) >= (sizeof (char) + sizeof (uint8_t) * 3 + sizeof (uint32_t) + /* version + flags + reserved */ + +(parent_atom_type == ATOM_TRACK ? sizeof (uint16_t) : 0) /* leading uint16_t if ATOM_TRACK */ + +sizeof (uint16_t) /* track / disc */ + +sizeof (uint16_t)) /* totaltracks / totaldiscs */) { + uint16_t index, total; char temp[32]; mp4ff_read_int16(f); index = mp4ff_read_int16(f); total = mp4ff_read_int16(f); - if (parent_atom_type == ATOM_TRACK) - mp4ff_read_int16(f); - - sprintf(temp,"%d",index); - mp4ff_tag_add_field(&(f->tags), parent_atom_type == ATOM_TRACK ? "track" : "disc", temp, -1); - if (total>0) - { - sprintf(temp,"%d",total); - mp4ff_tag_add_field(&(f->tags), parent_atom_type == ATOM_TRACK ? "totaltracks" : "totaldiscs", temp, -1); + if (parent_atom_type == ATOM_TRACK) + mp4ff_read_int16(f); + + sprintf(temp, "%d", index); + mp4ff_tag_add_field(&(f->tags), parent_atom_type == ATOM_TRACK ? + "track" : "disc", temp, -1); + if (total > 0) { + sprintf(temp, "%d", + total); + mp4ff_tag_add_field(& (f-> tags), + parent_atom_type == ATOM_TRACK? + "totaltracks" : "totaldiscs", temp, -1); } done = 1; } - } else - { - if (data) {free(data);data = NULL;} - data = mp4ff_read_string(f,(uint32_t)(subsize-(header_size+8))); - len = (uint32_t)(subsize-(header_size+8)); + } else { + if (data) { + free(data); + data = NULL; + } + data = mp4ff_read_string(f, (uint32_t) (subsize - (header_size + 8))); + len = (uint32_t) (subsize - (header_size + 8)); } } else if (atom_type == ATOM_NAME) { - if (!done) - { - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - if (name) free(name); - name = mp4ff_read_string(f,(uint32_t)(subsize-(header_size+4))); + if (!done) { + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + if (name) + free(name); + name = mp4ff_read_string(f, (uint32_t) (subsize - (header_size + 4))); } } mp4ff_set_position(f, destpos); sumsize += subsize; } - } + } - if (data) - { - if (!done) - { - if (name == NULL) mp4ff_set_metadata_name(f, parent_atom_type, &name); - if (name) mp4ff_tag_add_field(&(f->tags), name, data, len); + if (data) { + if (!done) { + if (name == NULL) + mp4ff_set_metadata_name(f, parent_atom_type, + &name); + if (name) + mp4ff_tag_add_field(&(f->tags), name, data, len); } free(data); } - if (name) free(name); - return 1; -} -static int32_t mp4ff_read_mdhd(mp4ff_t *f) -{ - uint32_t version; - - /* CVE-2017-9221 */ - if (f->total_tracks == 0) - return f->error++; - - version = mp4ff_read_int32(f); - if (version==1) - { - mp4ff_read_int64(f);//creation-time - mp4ff_read_int64(f);//modification-time - f->track[f->total_tracks - 1]->timeScale = mp4ff_read_int32(f);//timescale - f->track[f->total_tracks - 1]->duration = mp4ff_read_int64(f);//duration - } - else //version == 0 - { - uint32_t temp; - - mp4ff_read_int32(f);//creation-time - mp4ff_read_int32(f);//modification-time - f->track[f->total_tracks - 1]->timeScale = mp4ff_read_int32(f);//timescale - temp = mp4ff_read_int32(f); - f->track[f->total_tracks - 1]->duration = (temp == (uint32_t)(-1)) ? (uint64_t)(-1) : (uint64_t)(temp); - } - mp4ff_read_int16(f); - mp4ff_read_int16(f); - return 1; -} - -int32_t mp4ff_parse_metadata(mp4ff_t *f, const int32_t size) -{ - uint64_t subsize, sumsize = 0; - uint8_t atom_type; - uint8_t header_size = 0; - - while (sumsize < size) - { - subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); - if (subsize == 0) - break; - mp4ff_parse_tag(f, atom_type, (uint32_t)(subsize-header_size)); - sumsize += subsize; - } - - return 0; -} - -static int32_t mp4ff_read_meta(mp4ff_t *f, const uint64_t size) -{ - uint64_t subsize, sumsize = 0; - uint8_t atom_type; - uint8_t header_size = 0; - - mp4ff_read_char(f); /* version */ - mp4ff_read_int24(f); /* flags */ - - while (sumsize < (size-(header_size+4))) - { - subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); - if (subsize <= header_size+4) - return 1; - if (atom_type == ATOM_ILST) - { - mp4ff_parse_metadata(f, (uint32_t)(subsize-(header_size+4))); - } else { - mp4ff_set_position(f, mp4ff_position(f)+subsize-header_size); - } - sumsize += subsize; - } - - return 0; -} - -int32_t mp4ff_atom_read(mp4ff_t *f, const int32_t size, const uint8_t atom_type) -{ - uint64_t dest_position = mp4ff_position(f)+size-8; - if (atom_type == ATOM_STSZ) - { - /* sample size box */ - mp4ff_read_stsz(f); - } else if (atom_type == ATOM_STTS) { - /* time to sample box */ - mp4ff_read_stts(f); - } else if (atom_type == ATOM_CTTS) { - /* composition offset box */ - mp4ff_read_ctts(f); - } else if (atom_type == ATOM_STSC) { - /* sample to chunk box */ - mp4ff_read_stsc(f); - } else if (atom_type == ATOM_STCO) { - /* chunk offset box */ - mp4ff_read_stco(f); - } else if (atom_type == ATOM_STSD) { - /* sample description box */ - mp4ff_read_stsd(f); - } else if (atom_type == ATOM_MVHD) { - /* movie header box */ - mp4ff_read_mvhd(f); - } else if (atom_type == ATOM_MDHD) { - /* track header */ - mp4ff_read_mdhd(f); + if (name) + free(name); + return 1; +} +static int32_t mp4ff_read_mdhd(mp4ff_t * f) +{ + uint32_t version; + + /* CVE-2017-9221 */ + if (f->total_tracks == 0) + return f->error++; + + version = mp4ff_read_int32(f); + if (version == 1) { + mp4ff_read_int64(f); //creation-time + mp4ff_read_int64(f); //modification-time + f->track[f->total_tracks - 1]->timeScale = mp4ff_read_int32(f); //timescale + f->track[f->total_tracks - 1]->duration = mp4ff_read_int64(f); //duration + } else //version == 0 + { + uint32_t temp; + + mp4ff_read_int32(f); //creation-time + mp4ff_read_int32(f); //modification-time + f->track[f->total_tracks - 1]->timeScale = mp4ff_read_int32(f); //timescale + temp = mp4ff_read_int32(f); + f->track[f->total_tracks - 1]->duration = (temp == (uint32_t) (-1)) ? (uint64_t) (-1) : (uint64_t) (temp); + } + mp4ff_read_int16(f); + mp4ff_read_int16(f); + return 1; +} + +int32_t mp4ff_parse_metadata(mp4ff_t * f, const int32_t size) +{ + uint64_t subsize, sumsize = 0; + uint8_t atom_type; + uint8_t header_size = 0; + + while (sumsize < size) { + subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); + if (subsize == 0) + break; + mp4ff_parse_tag(f, atom_type, + (uint32_t) (subsize - header_size)); + sumsize += subsize; + } + + return 0; +} + +static int32_t mp4ff_read_meta(mp4ff_t * f, const uint64_t size) +{ + uint64_t subsize, sumsize = 0; + uint8_t atom_type; + uint8_t header_size = 0; + + mp4ff_read_char(f); /* version */ + mp4ff_read_int24(f); /* flags */ + + while (sumsize < (size - (header_size + 4))) { + subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); + if (subsize <= header_size + 4) + return 1; + if (atom_type == ATOM_ILST) { + mp4ff_parse_metadata(f, (uint32_t) (subsize - (header_size + 4))); + } else { + mp4ff_set_position(f, mp4ff_position(f) + subsize - header_size); + } + sumsize += subsize; + } + + return 0; +} + +int32_t mp4ff_atom_read(mp4ff_t * f, const int32_t size, + const uint8_t atom_type) +{ + uint64_t dest_position = mp4ff_position(f) + size - 8; + if (atom_type == ATOM_STSZ) { + /* sample size box */ + mp4ff_read_stsz(f); + } else if (atom_type == ATOM_STTS) { + /* time to sample box */ + mp4ff_read_stts(f); + } else if (atom_type == ATOM_CTTS) { + /* composition offset box */ + mp4ff_read_ctts(f); + } else if (atom_type == ATOM_STSC) { + /* sample to chunk box */ + mp4ff_read_stsc(f); + } else if (atom_type == ATOM_STCO) { + /* chunk offset box */ + mp4ff_read_stco(f); + } else if (atom_type == ATOM_STSD) { + /* sample description box */ + mp4ff_read_stsd(f); + } else if (atom_type == ATOM_MVHD) { + /* movie header box */ + mp4ff_read_mvhd(f); + } else if (atom_type == ATOM_MDHD) { + /* track header */ + mp4ff_read_mdhd(f); #ifdef USE_TAGGING - } else if (atom_type == ATOM_META) { - /* iTunes Metadata box */ - mp4ff_read_meta(f, size); + } else if (atom_type == ATOM_META) { + /* iTunes Metadata box */ + mp4ff_read_meta(f, size); #endif - } + } - mp4ff_set_position(f, dest_position); - return 0; + mp4ff_set_position(f, dest_position); + return 0; } /* parse atoms that are sub atoms of other atoms */ -int32_t parse_sub_atoms(mp4ff_t *f, const uint64_t total_size,int meta_only) -{ - uint64_t size; - uint8_t atom_type = 0; - uint64_t counted_size = 0; - uint8_t header_size = 0; - - while (counted_size < total_size) - { - size = mp4ff_atom_read_header(f, &atom_type, &header_size); - counted_size += size; - - /* check for end of file */ - if (size == 0) - break; - - /* we're starting to read a new track, update index, - * so that all data and tables get written in the right place - */ - if (atom_type == ATOM_TRAK) - { - mp4ff_track_add(f); - } - - /* parse subatoms */ - if (meta_only && !need_parse_when_meta_only(atom_type)) - { - mp4ff_set_position(f, mp4ff_position(f)+size-header_size); - } else if (atom_type < SUBATOMIC) - { - parse_sub_atoms(f, size-header_size,meta_only); - } else { - mp4ff_atom_read(f, (uint32_t)size, atom_type); - } - } +int32_t parse_sub_atoms(mp4ff_t * f, const uint64_t total_size, int meta_only) +{ + uint64_t size; + uint8_t atom_type = 0; + uint64_t counted_size = 0; + uint8_t header_size = 0; + + while (counted_size < total_size) { + size = mp4ff_atom_read_header(f, &atom_type, &header_size); + counted_size += size; + + /* check for end of file */ + if (size == 0) + break; + + /* we're starting to read a new track, update index, + * so that all data and tables get written in the right place + */ + if (atom_type == ATOM_TRAK) { + mp4ff_track_add(f); + } - return 0; + /* parse subatoms */ + if (meta_only && !need_parse_when_meta_only(atom_type)) { + mp4ff_set_position(f, mp4ff_position(f) + size - header_size); + } else if (atom_type < SUBATOMIC) { + parse_sub_atoms(f, size - header_size, meta_only); + } else { + mp4ff_atom_read(f, (uint32_t) size, atom_type); + } + } + + return 0; } /* parse root atoms */ -int32_t parse_atoms(mp4ff_t *f,int meta_only) +int32_t parse_atoms(mp4ff_t * f, int meta_only) { - uint64_t size; - uint8_t atom_type = 0; - uint8_t header_size = 0; + uint64_t size; + uint8_t atom_type = 0; + uint8_t header_size = 0; - f->file_size = 0; - f->stream->read_error = 0; + f->file_size = 0; + f->stream->read_error = 0; - while ((size = mp4ff_atom_read_header(f, &atom_type, &header_size)) != 0) - { - f->file_size += size; - f->last_atom = atom_type; + while ((size = + mp4ff_atom_read_header(f, &atom_type, &header_size)) != 0) { + f->file_size += size; + f->last_atom = atom_type; - if (atom_type == ATOM_MDAT && f->moov_read) - { - /* moov atom is before mdat, we can stop reading when mdat is encountered */ - /* file position will stay at beginning of mdat data */ + if (atom_type == ATOM_MDAT && f->moov_read) { + /* moov atom is before mdat, we can stop reading when mdat is encountered */ + /* file position will stay at beginning of mdat data */ // break; - } + } - if (atom_type == ATOM_MOOV && size > header_size) - { - f->moov_read = 1; - f->moov_offset = mp4ff_position(f)-header_size; - f->moov_size = size; - } + if (atom_type == ATOM_MOOV && size > header_size) { + f->moov_read = 1; + f->moov_offset = mp4ff_position(f) - header_size; + f->moov_size = size; + } - /* parse subatoms */ - if (meta_only && !need_parse_when_meta_only(atom_type)) - { - mp4ff_set_position(f, mp4ff_position(f)+size-header_size); - } else if (atom_type < SUBATOMIC) - { - parse_sub_atoms(f, size-header_size,meta_only); - } else { - /* skip this atom */ - mp4ff_set_position(f, mp4ff_position(f)+size-header_size); - } - } - - return 0; -} - -int32_t mp4ff_get_decoder_config(const mp4ff_t *f, const int track, - unsigned char** ppBuf, unsigned int* pBufSize) -{ - if (track >= f->total_tracks) - { - *ppBuf = NULL; - *pBufSize = 0; - return 1; - } - - if (f->track[track]->decoderConfig == NULL || f->track[track]->decoderConfigLen == 0) - { - *ppBuf = NULL; - *pBufSize = 0; - } else { - *ppBuf = malloc(f->track[track]->decoderConfigLen); - if (*ppBuf == NULL) - { - *pBufSize = 0; - return 1; - } - memcpy(*ppBuf, f->track[track]->decoderConfig, f->track[track]->decoderConfigLen); - *pBufSize = f->track[track]->decoderConfigLen; - } -} - -mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f) -{ - mp4ff_t *ff = malloc(sizeof(mp4ff_t)); - - memset(ff, 0, sizeof(mp4ff_t)); - - ff->stream = f; - - parse_atoms(ff,0); - - if (ff->error) - { - free(ff); - ff = NULL; - } - - return ff; -} - -int32_t mp4ff_tag_delete(mp4ff_metadata_t *tags) -{ - uint32_t i; - - for (i = 0; i < tags->count; i++) - { - if (tags->tags[i].item) free(tags->tags[i].item); - if (tags->tags[i].value) free(tags->tags[i].value); - } - - if (tags->tags) free(tags->tags); - - tags->tags = NULL; - tags->count = 0; - - return 0; -} -void mp4ff_close(mp4ff_t *ff) -{ - int32_t i; - - for (i = 0; i < ff->total_tracks; i++) - { - if (ff->track[i]) - { - if (ff->track[i]->stsz_table) - free(ff->track[i]->stsz_table); - if (ff->track[i]->stts_sample_count) - free(ff->track[i]->stts_sample_count); - if (ff->track[i]->stts_sample_delta) - free(ff->track[i]->stts_sample_delta); - if (ff->track[i]->stsc_first_chunk) - free(ff->track[i]->stsc_first_chunk); - if (ff->track[i]->stsc_samples_per_chunk) - free(ff->track[i]->stsc_samples_per_chunk); - if (ff->track[i]->stsc_sample_desc_index) - free(ff->track[i]->stsc_sample_desc_index); - if (ff->track[i]->stco_chunk_offset) - free(ff->track[i]->stco_chunk_offset); - if (ff->track[i]->decoderConfig) - free(ff->track[i]->decoderConfig); + /* parse subatoms */ + if (meta_only && !need_parse_when_meta_only(atom_type)) { + mp4ff_set_position(f, mp4ff_position(f) + size - header_size); + } else if (atom_type < SUBATOMIC) { + parse_sub_atoms(f, size - header_size, meta_only); + } else { + /* skip this atom */ + mp4ff_set_position(f, mp4ff_position(f) + size - header_size); + } + } + + return 0; +} + +int32_t mp4ff_get_decoder_config(const mp4ff_t * f, const int track, + unsigned char **ppBuf, unsigned int *pBufSize) +{ + if (track >= f->total_tracks) { + *ppBuf = NULL; + *pBufSize = 0; + return 1; + } + + if (f->track[track]->decoderConfig == NULL + || f->track[track]->decoderConfigLen == 0) { + *ppBuf = NULL; + *pBufSize = 0; + } else { + *ppBuf = malloc(f->track[track]->decoderConfigLen); + if (*ppBuf == NULL) { + *pBufSize = 0; + return 1; + } + memcpy(*ppBuf, f->track[track]->decoderConfig, + f->track[track]->decoderConfigLen); + *pBufSize = f->track[track]->decoderConfigLen; + } +} + +mp4ff_t *mp4ff_open_read(mp4ff_callback_t * f) +{ + mp4ff_t *ff = malloc(sizeof (mp4ff_t)); + + memset(ff, 0, sizeof (mp4ff_t)); + + ff->stream = f; + + parse_atoms(ff, 0); + + if (ff->error) { + free(ff); + ff = NULL; + } + + return ff; +} + +int32_t mp4ff_tag_delete(mp4ff_metadata_t * tags) +{ + uint32_t i; + + for (i = 0; i < tags->count; i++) { + if (tags->tags[i].item) + free(tags->tags[i].item); + if (tags->tags[i].value) + free(tags->tags[i].value); + } + + if (tags->tags) + free(tags->tags); + + tags->tags = NULL; + tags->count = 0; + + return 0; +} + +void mp4ff_close(mp4ff_t * ff) +{ + int32_t i; + + for (i = 0; i < ff->total_tracks; i++) { + if (ff->track[i]) { + if (ff->track[i]->stsz_table) + free(ff->track[i]->stsz_table); + if (ff->track[i]->stts_sample_count) + free(ff->track[i]->stts_sample_count); + if (ff->track[i]->stts_sample_delta) + free(ff->track[i]->stts_sample_delta); + if (ff->track[i]->stsc_first_chunk) + free(ff->track[i]->stsc_first_chunk); + if (ff->track[i]->stsc_samples_per_chunk) + free(ff->track[i]->stsc_samples_per_chunk); + if (ff->track[i]->stsc_sample_desc_index) + free(ff->track[i]->stsc_sample_desc_index); + if (ff->track[i]->stco_chunk_offset) + free(ff->track[i]->stco_chunk_offset); + if (ff->track[i]->decoderConfig) + free(ff->track[i]->decoderConfig); if (ff->track[i]->ctts_sample_count) free(ff->track[i]->ctts_sample_count); if (ff->track[i]->ctts_sample_offset) free(ff->track[i]->ctts_sample_offset); #ifdef ITUNES_DRM - if (ff->track[i]->p_drms) - drms_free(ff->track[i]->p_drms); + if (ff->track[i]->p_drms) + drms_free(ff->track[i]->p_drms); #endif - free(ff->track[i]); - } - } + free(ff->track[i]); + } + } #ifdef USE_TAGGING - mp4ff_tag_delete(&(ff->tags)); + mp4ff_tag_delete(&(ff->tags)); #endif - if (ff) free(ff); + if (ff) + free(ff); } -static int32_t mp4ff_chunk_of_sample(const mp4ff_t *f, const int32_t track, const int32_t sample, - int32_t *chunk_sample, int32_t *chunk) +static int32_t mp4ff_chunk_of_sample(const mp4ff_t * f, const int32_t track, + const int32_t sample, int32_t * chunk_sample, int32_t * chunk) { - int32_t total_entries = 0; - int32_t chunk2entry; - int32_t chunk1, chunk2, chunk1samples, range_samples, total = 0; + int32_t total_entries = 0; + int32_t chunk2entry; + int32_t chunk1, chunk2, chunk1samples, range_samples, total = 0; - if (f->track[track] == NULL) - { - return -1; - } + if (f->track[track] == NULL) { + return -1; + } - total_entries = f->track[track]->stsc_entry_count; + total_entries = f->track[track]->stsc_entry_count; - chunk1 = 1; - chunk1samples = 0; - chunk2entry = 0; + chunk1 = 1; + chunk1samples = 0; + chunk2entry = 0; - do - { - chunk2 = f->track[track]->stsc_first_chunk[chunk2entry]; - *chunk = chunk2 - chunk1; - range_samples = *chunk * chunk1samples; + do { + chunk2 = f->track[track]->stsc_first_chunk[chunk2entry]; + *chunk = chunk2 - chunk1; + range_samples = *chunk * chunk1samples; - if (sample < total + range_samples) break; + if (sample < total + range_samples) + break; - chunk1samples = f->track[track]->stsc_samples_per_chunk[chunk2entry]; - chunk1 = chunk2; + chunk1samples = f->track[track]->stsc_samples_per_chunk[chunk2entry]; + chunk1 = chunk2; - if(chunk2entry < total_entries) - { - chunk2entry++; - total += range_samples; - } - } while (chunk2entry < total_entries); + if (chunk2entry < total_entries) { + chunk2entry++; + total += range_samples; + } + } while (chunk2entry < total_entries); - if (chunk1samples) - *chunk = (sample - total) / chunk1samples + chunk1; - else - *chunk = 1; + if (chunk1samples) + *chunk = (sample - total) / chunk1samples + chunk1; + else + *chunk = 1; - *chunk_sample = total + (*chunk - chunk1) * chunk1samples; + *chunk_sample = total + (*chunk - chunk1) * chunk1samples; - return 0; + return 0; } - -static int32_t mp4ff_chunk_to_offset(const mp4ff_t *f, const int32_t track, const int32_t chunk) +static int32_t mp4ff_chunk_to_offset(const mp4ff_t * f, const int32_t track, + const int32_t chunk) { - const mp4ff_track_t * p_track = f->track[track]; + const mp4ff_track_t *p_track = f->track[track]; - if (p_track->stco_entry_count && (chunk > p_track->stco_entry_count)) - { - return p_track->stco_chunk_offset[p_track->stco_entry_count - 1]; - } else if (p_track->stco_entry_count) { - return p_track->stco_chunk_offset[chunk - 1]; - } else { - return 8; - } + if (p_track->stco_entry_count && (chunk > p_track->stco_entry_count)) { + return p_track->stco_chunk_offset[p_track->stco_entry_count - + 1]; + } else if (p_track->stco_entry_count) { + return p_track->stco_chunk_offset[chunk - 1]; + } else { + return 8; + } - return 0; + return 0; } -static int32_t mp4ff_sample_range_size(const mp4ff_t *f, const int32_t track, - const int32_t chunk_sample, const int32_t sample) +static int32_t mp4ff_sample_range_size(const mp4ff_t * f, const int32_t track, + const int32_t chunk_sample, const int32_t sample) { - int32_t i, total; - const mp4ff_track_t * p_track = f->track[track]; + int32_t i, total; + const mp4ff_track_t *p_track = f->track[track]; - if (p_track->stsz_sample_size) - { - return (sample - chunk_sample) * p_track->stsz_sample_size; - } - else - { - if (sample>=p_track->stsz_sample_count) return 0;//error + if (p_track->stsz_sample_size) { + return (sample - chunk_sample) * p_track->stsz_sample_size; + } else { + if (sample >= p_track->stsz_sample_count) + return 0; //error - for(i = chunk_sample, total = 0; i < sample; i++) - { - total += p_track->stsz_table[i]; - } - } + for (i = chunk_sample, total = 0; i < sample; i++) { + total += p_track->stsz_table[i]; + } + } - return total; + return total; } -static int32_t mp4ff_sample_to_offset(const mp4ff_t *f, const int32_t track, const int32_t sample) +static int32_t mp4ff_sample_to_offset(const mp4ff_t * f, const int32_t track, + const int32_t sample) { - int32_t chunk, chunk_sample, chunk_offset1, chunk_offset2; - - mp4ff_chunk_of_sample(f, track, sample, &chunk_sample, &chunk); + int32_t chunk, chunk_sample, chunk_offset1, chunk_offset2; - chunk_offset1 = mp4ff_chunk_to_offset(f, track, chunk); - chunk_offset2 = chunk_offset1 + mp4ff_sample_range_size(f, track, chunk_sample, sample); + mp4ff_chunk_of_sample(f, track, sample, &chunk_sample, &chunk); - return chunk_offset2; + chunk_offset1 = mp4ff_chunk_to_offset(f, track, chunk); + chunk_offset2 = chunk_offset1 + mp4ff_sample_range_size(f, + track, chunk_sample, sample); + return chunk_offset2; } -int32_t mp4ff_set_sample_position(mp4ff_t *f, const int32_t track, const int32_t sample) +int32_t mp4ff_set_sample_position(mp4ff_t * f, const int32_t track, + const int32_t sample) { - int32_t offset; + int32_t offset; - offset = mp4ff_sample_to_offset(f, track, sample); - mp4ff_set_position(f, offset); + offset = mp4ff_sample_to_offset(f, track, sample); + mp4ff_set_position(f, offset); - return 0; + return 0; } -int32_t mp4ff_audio_frame_size(const mp4ff_t *f, const int32_t track, const int32_t sample) +int32_t mp4ff_audio_frame_size(const mp4ff_t * f, const int32_t track, + const int32_t sample) { - int32_t bytes; - const mp4ff_track_t * p_track = f->track[track]; + int32_t bytes; + const mp4ff_track_t *p_track = f->track[track]; - if (p_track->stsz_sample_size) - { - bytes = p_track->stsz_sample_size; - } else { - bytes = p_track->stsz_table[sample]; - } + if (p_track->stsz_sample_size) { + bytes = p_track->stsz_sample_size; + } else { + bytes = p_track->stsz_table[sample]; + } - return bytes; + return bytes; } -int32_t mp4ff_read_sample_getsize(mp4ff_t *f, const int track, const int sample) +int32_t mp4ff_read_sample_getsize(mp4ff_t * f, const int track, + const int sample) { int32_t temp = mp4ff_audio_frame_size(f, track, sample); - if (temp<0) temp = 0; + if (temp < 0) + temp = 0; return temp; } -uint32_t mp4ff_get_sample_rate(const mp4ff_t *f, const int32_t track) +uint32_t mp4ff_get_sample_rate(const mp4ff_t * f, const int32_t track) { return f->track[track]->sampleRate; } -uint32_t mp4ff_get_channel_count(const mp4ff_t * f,const int32_t track) +uint32_t mp4ff_get_channel_count(const mp4ff_t * f, const int32_t track) { return f->track[track]->channelCount; } -int32_t mp4ff_num_samples(const mp4ff_t *f, const int32_t track) +int32_t mp4ff_num_samples(const mp4ff_t * f, const int32_t track) { - int32_t i; - int32_t total = 0; + int32_t i; + int32_t total = 0; - for (i = 0; i < f->track[track]->stts_entry_count; i++) - { - total += f->track[track]->stts_sample_count[i]; - } - return total; + for (i = 0; i < f->track[track]->stts_entry_count; i++) { + total += f->track[track]->stts_sample_count[i]; + } + return total; } -mp4ff_t *mp4ff_open_read_metaonly(mp4ff_callback_t *f) +mp4ff_t *mp4ff_open_read_metaonly(mp4ff_callback_t * f) { - mp4ff_t *ff = malloc(sizeof(mp4ff_t)); + mp4ff_t *ff = malloc(sizeof (mp4ff_t)); - memset(ff, 0, sizeof(mp4ff_t)); + memset(ff, 0, sizeof (mp4ff_t)); - ff->stream = f; + ff->stream = f; - parse_atoms(ff,1); + parse_atoms(ff, 1); - if (ff->error) - { - free(ff); - ff = NULL; - } + if (ff->error) { + free(ff); + ff = NULL; + } - return ff; + return ff; } -int32_t mp4ff_meta_get_num_items(const mp4ff_t *f) +int32_t mp4ff_meta_get_num_items(const mp4ff_t * f) { - return f->tags.count; + return f->tags.count; } -int32_t mp4ff_meta_get_by_index(const mp4ff_t *f, uint32_t index, - char **item, char **value) +int32_t mp4ff_meta_get_by_index(const mp4ff_t * f, uint32_t index, + char **item, char **value) { - if (index >= f->tags.count) - { - *item = NULL; - *value = NULL; - return 0; - } else { + if (index >= f->tags.count) { + *item = NULL; + *value = NULL; + return 0; + } else { *item = strdup(f->tags.tags[index].item); *value = strdup(f->tags.tags[index].value); return 1; - } + } } -static uint32_t find_atom(mp4ff_t * f,uint64_t base,uint32_t size,const char * name) +static uint32_t find_atom(mp4ff_t * f, uint64_t base, uint32_t size, + const char *name) { uint32_t remaining = size; uint64_t atom_offset = base; - for(;;) - { + for (;;) { char atom_name[4]; uint32_t atom_size; - mp4ff_set_position(f,atom_offset); - - if (remaining < 8) break; + mp4ff_set_position(f, atom_offset); + + if (remaining < 8) + break; atom_size = mp4ff_read_int32(f); - if (atom_size > remaining || atom_size < 8) break; - mp4ff_read_data(f,atom_name,4); - - if (!memcmp(atom_name,name,4)) - { - mp4ff_set_position(f,atom_offset); + if (atom_size > remaining || atom_size < 8) + break; + mp4ff_read_data(f, atom_name, 4); + + if (!memcmp(atom_name, name, 4)) { + mp4ff_set_position(f, atom_offset); return 1; } - + remaining -= atom_size; atom_offset += atom_size; } return 0; } -static uint32_t find_atom_v2(mp4ff_t * f,uint64_t base,uint32_t size,const char * name,uint32_t extraheaders,const char * name_inside) +static uint32_t find_atom_v2(mp4ff_t * f, uint64_t base, uint32_t size, + const char *name, uint32_t extraheaders, const char *name_inside) { - uint64_t first_base = (uint64_t)(-1); - while(find_atom(f,base,size,name))//try to find atom with atom in it + uint64_t first_base = (uint64_t) (-1); + while (find_atom(f, base, size, name)) //try to find atom with atom in it { uint64_t mybase = mp4ff_position(f); uint32_t mysize = mp4ff_read_int32(f); - if (first_base == (uint64_t)(-1)) first_base = mybase; + if (first_base == (uint64_t) (-1)) + first_base = mybase; - if (mysize < 8 + extraheaders) break; + if (mysize < 8 + extraheaders) + break; - if (find_atom(f,mybase+(8+extraheaders),mysize-(8+extraheaders),name_inside)) - { - mp4ff_set_position(f,mybase); + if (find_atom (f, mybase + (8 + extraheaders), + mysize - (8 + extraheaders), name_inside)) { + mp4ff_set_position(f, mybase); return 2; } base += mysize; - if (size<=mysize) {size=0;break;} + if (size <= mysize) { + size = 0; + break; + } size -= mysize; } - if (first_base != (uint64_t)(-1))//wanted atom inside not found + if (first_base != (uint64_t) (-1)) //wanted atom inside not found { - mp4ff_set_position(f,first_base); + mp4ff_set_position(f, first_base); return 1; - } - else return 0; + } else + return 0; } -typedef struct -{ - void * data; +typedef struct { + void *data; unsigned written; unsigned allocated; unsigned error; @@ -1635,11 +1695,11 @@ typedef struct #define stricmp strcasecmp -membuffer * membuffer_create() +membuffer *membuffer_create() { const unsigned initial_size = 256; - membuffer * buf = (membuffer *) malloc(sizeof(membuffer)); + membuffer *buf = (membuffer *) malloc(sizeof (membuffer)); buf->data = malloc(initial_size); buf->written = 0; buf->allocated = initial_size; @@ -1648,22 +1708,20 @@ membuffer * membuffer_create() return buf; } -unsigned membuffer_write(membuffer * buf,const void * ptr,unsigned bytes) +unsigned membuffer_write(membuffer * buf, const void *ptr, unsigned bytes) { unsigned dest_size = buf->written + bytes; - if (buf->error) return 0; - if (dest_size > buf->allocated) - { - do - { + if (buf->error) + return 0; + if (dest_size > buf->allocated) { + do { buf->allocated <<= 1; - } while(dest_size > buf->allocated); - + } while (dest_size > buf->allocated); + { - void * newptr = realloc(buf->data,buf->allocated); - if (newptr==0) - { + void *newptr = realloc(buf->data, buf->allocated); + if (newptr == 0) { free(buf->data); buf->data = 0; buf->error = 1; @@ -1673,142 +1731,163 @@ unsigned membuffer_write(membuffer * buf,const void * ptr,unsigned bytes) } } - if (ptr) memcpy((char*)buf->data + buf->written,ptr,bytes); + if (ptr) + memcpy((char *) buf->data + buf->written, ptr, bytes); buf->written += bytes; return bytes; } + #define membuffer_write_data membuffer_write -unsigned membuffer_write_atom_name(membuffer * buf,const char * data) +unsigned membuffer_write_atom_name(membuffer * buf, const char *data) { - return membuffer_write_data(buf,data,4)==4 ? 1 : 0; + return membuffer_write_data(buf, data, 4) == 4 ? 1 : 0; } -unsigned membuffer_write_int16(membuffer * buf,uint16_t data) +unsigned membuffer_write_int16(membuffer * buf, uint16_t data) { - uint8_t temp[2] = {(uint8_t)(data>>8),(uint8_t)data}; - return membuffer_write_data(buf,temp,2); + uint8_t temp[2] = { (uint8_t) (data >> 8), (uint8_t) data }; + return membuffer_write_data(buf, temp, 2); } -unsigned membuffer_write_int32(membuffer * buf,uint32_t data) +unsigned membuffer_write_int32(membuffer * buf, uint32_t data) { - uint8_t temp[4] = {(uint8_t)(data>>24),(uint8_t)(data>>16),(uint8_t)(data>>8),(uint8_t)data}; - return membuffer_write_data(buf,temp,4); + uint8_t temp[4] = { (uint8_t) (data >> 24), (uint8_t) (data >> 16), + (uint8_t) (data >> 8), (uint8_t) data }; + return membuffer_write_data(buf, temp, 4); } -static void membuffer_write_track_tag(membuffer * buf,const char * name,uint32_t index,uint32_t total) +static void membuffer_write_track_tag(membuffer * buf, const char *name, + uint32_t index, uint32_t total) { - membuffer_write_int32(buf,8 /*atom header*/ + 8 /*data atom header*/ + 8 /*flags + reserved*/ + 8 /*actual data*/ ); - membuffer_write_atom_name(buf,name); - membuffer_write_int32(buf,8 /*data atom header*/ + 8 /*flags + reserved*/ + 8 /*actual data*/ ); - membuffer_write_atom_name(buf,"data"); - membuffer_write_int32(buf,0);//flags - membuffer_write_int32(buf,0);//reserved - membuffer_write_int16(buf,0); - membuffer_write_int16(buf,(uint16_t)index);//track number - membuffer_write_int16(buf,(uint16_t)total);//total tracks - membuffer_write_int16(buf,0); + membuffer_write_int32(buf, + 8 /*atom header */ + 8 /*data atom header */ + + 8 /*flags + reserved */ + 8 /*actual data */ ); + membuffer_write_atom_name(buf, name); + membuffer_write_int32(buf, + 8 /*data atom header */ + + 8 /*flags + reserved */ + 8 /*actual data */ ); + membuffer_write_atom_name(buf, "data"); + membuffer_write_int32(buf, 0); //flags + membuffer_write_int32(buf, 0); //reserved + membuffer_write_int16(buf, 0); + membuffer_write_int16(buf, (uint16_t) index); //track number + membuffer_write_int16(buf, (uint16_t) total); //total tracks + membuffer_write_int16(buf, 0); } -static void membuffer_write_int16_tag(membuffer * buf,const char * name,uint16_t value) +static void membuffer_write_int16_tag(membuffer * buf, const char *name, + uint16_t value) { - membuffer_write_int32(buf,8 /*atom header*/ + 8 /*data atom header*/ + 8 /*flags + reserved*/ + 2 /*actual data*/ ); - membuffer_write_atom_name(buf,name); - membuffer_write_int32(buf,8 /*data atom header*/ + 8 /*flags + reserved*/ + 2 /*actual data*/ ); - membuffer_write_atom_name(buf,"data"); - membuffer_write_int32(buf,0);//flags - membuffer_write_int32(buf,0);//reserved - membuffer_write_int16(buf,value);//value + membuffer_write_int32(buf, + 8 /*atom header */ + 8 /*data atom header */ + + 8 /*flags + reserved */ + 2 /*actual data */ ); + membuffer_write_atom_name(buf, name); + membuffer_write_int32(buf, + 8 /*data atom header */ + + 8 /*flags + reserved */ + 2 /*actual data */ ); + membuffer_write_atom_name(buf, "data"); + membuffer_write_int32(buf, 0); //flags + membuffer_write_int32(buf, 0); //reserved + membuffer_write_int16(buf, value); //value } -static uint32_t myatoi(const char * param) +static uint32_t myatoi(const char *param) { return param ? atoi(param) : 0; } -uint32_t mp4ff_meta_genre_to_index(const char * genrestr) +uint32_t mp4ff_meta_genre_to_index(const char *genrestr) { unsigned n; - for(n=0;ndata) free(buf->data); + if (buf->data) + free(buf->data); free(buf); } @@ -1827,104 +1907,107 @@ unsigned membuffer_get_size(const membuffer * buf) return buf->written; } -void * membuffer_detach(membuffer * buf) +void *membuffer_detach(membuffer * buf) { - void * ret; + void *ret; - if (buf->error) return 0; + if (buf->error) + return 0; - ret = realloc(buf->data,buf->written); - - if (ret == 0) free(buf->data); + ret = realloc(buf->data, buf->written); + + if (ret == 0) + free(buf->data); buf->data = 0; buf->error = 1; - + return ret; } -static uint32_t create_ilst(const mp4ff_metadata_t * data,void ** out_buffer,uint32_t * out_size) +static uint32_t create_ilst(const mp4ff_metadata_t * data, void **out_buffer, + uint32_t * out_size) { - membuffer * buf = membuffer_create(); + membuffer *buf = membuffer_create(); unsigned metaptr; - char * mask = (char*)malloc(data->count); - memset(mask,0,data->count); + char *mask = (char *) malloc(data->count); + memset(mask, 0, data->count); { - const char * tracknumber_ptr = 0, * totaltracks_ptr = 0; - const char * discnumber_ptr = 0, * totaldiscs_ptr = 0; - const char * genre_ptr = 0, * tempo_ptr = 0; - for(metaptr = 0; metaptr < data->count; metaptr++) - { - mp4ff_tag_t * tag = &data->tags[metaptr]; - if (!stricmp(tag->item,"tracknumber") || !stricmp(tag->item,"track")) - { - if (tracknumber_ptr==0) tracknumber_ptr = tag->value; + const char *tracknumber_ptr = 0, *totaltracks_ptr = 0; + const char *discnumber_ptr = 0, *totaldiscs_ptr = 0; + const char *genre_ptr = 0, *tempo_ptr = 0; + for (metaptr = 0; metaptr < data->count; metaptr++) { + mp4ff_tag_t *tag = &data->tags[metaptr]; + if (!stricmp(tag->item, "tracknumber") || !stricmp(tag->item, "track")) { + if (tracknumber_ptr == 0) + tracknumber_ptr = tag->value; mask[metaptr] = 1; - } - else if (!stricmp(tag->item,"totaltracks")) - { - if (totaltracks_ptr==0) totaltracks_ptr = tag->value; + } else if (!stricmp(tag->item, "totaltracks")) { + if (totaltracks_ptr == 0) + totaltracks_ptr = tag->value; mask[metaptr] = 1; - } - else if (!stricmp(tag->item,"discnumber") || !stricmp(tag->item,"disc")) - { - if (discnumber_ptr==0) discnumber_ptr = tag->value; + } else if (!stricmp(tag->item, "discnumber") + || !stricmp(tag->item, "disc")) { + if (discnumber_ptr == 0) + discnumber_ptr = tag->value; mask[metaptr] = 1; - } - else if (!stricmp(tag->item,"totaldiscs")) - { - if (totaldiscs_ptr==0) totaldiscs_ptr = tag->value; + } else if (!stricmp(tag->item, "totaldiscs")) { + if (totaldiscs_ptr == 0) + totaldiscs_ptr = tag->value; mask[metaptr] = 1; - } - else if (!stricmp(tag->item,"genre")) - { - if (genre_ptr==0) genre_ptr = tag->value; + } else if (!stricmp(tag->item, "genre")) { + if (genre_ptr == 0) + genre_ptr = tag->value; mask[metaptr] = 1; - } - else if (!stricmp(tag->item,"tempo")) - { - if (tempo_ptr==0) tempo_ptr = tag->value; + } else if (!stricmp(tag->item, "tempo")) { + if (tempo_ptr == 0) + tempo_ptr = tag->value; mask[metaptr] = 1; } } - if (tracknumber_ptr) membuffer_write_track_tag(buf,"trkn",myatoi(tracknumber_ptr),myatoi(totaltracks_ptr)); - if (discnumber_ptr) membuffer_write_track_tag(buf,"disk",myatoi(discnumber_ptr),myatoi(totaldiscs_ptr)); - if (tempo_ptr) membuffer_write_int16_tag(buf,"tmpo",(uint16_t)myatoi(tempo_ptr)); - - if (genre_ptr) - { + if (tracknumber_ptr) + membuffer_write_track_tag(buf, "trkn", + myatoi(tracknumber_ptr), + myatoi(totaltracks_ptr)); + if (discnumber_ptr) + membuffer_write_track_tag(buf, "disk", + myatoi(discnumber_ptr), + myatoi(totaldiscs_ptr)); + if (tempo_ptr) + membuffer_write_int16_tag(buf, "tmpo", + (uint16_t) myatoi(tempo_ptr)); + + if (genre_ptr) { uint32_t index = mp4ff_meta_genre_to_index(genre_ptr); - if (index==0) - membuffer_write_std_tag(buf,"©gen",genre_ptr); + if (index == 0) + membuffer_write_std_tag(buf, "©gen", + genre_ptr); else - membuffer_write_int16_tag(buf,"gnre",(uint16_t)index); + membuffer_write_int16_tag(buf, "gnre", + (uint16_t) index); } } - - for(metaptr = 0; metaptr < data->count; metaptr++) - { - if (!mask[metaptr]) - { - mp4ff_tag_t * tag = &data->tags[metaptr]; - const char * std_meta_atom = find_standard_meta(tag->item); - if (std_meta_atom) - { - membuffer_write_std_tag(buf,std_meta_atom,tag->value); - } - else - { - membuffer_write_custom_tag(buf,tag->item,tag->value); + + for (metaptr = 0; metaptr < data->count; metaptr++) { + if (!mask[metaptr]) { + mp4ff_tag_t *tag = &data->tags[metaptr]; + const char *std_meta_atom = find_standard_meta(tag->item); + if (std_meta_atom) { + membuffer_write_std_tag(buf, std_meta_atom, + tag->value); + } else { + membuffer_write_custom_tag(buf, tag->item, + tag->value); } } } free(mask); - if (membuffer_error(buf)) - { + if (membuffer_error(buf)) { membuffer_free(buf); return 0; } @@ -1936,14 +2019,15 @@ static uint32_t create_ilst(const mp4ff_metadata_t * data,void ** out_buffer,uin return 1; } -void membuffer_write_atom(membuffer * buf,const char * name,unsigned size,const void * data) +void membuffer_write_atom(membuffer * buf, const char *name, unsigned size, + const void *data) { - membuffer_write_int32(buf,size + 8); - membuffer_write_atom_name(buf,name); - membuffer_write_data(buf,data,size); + membuffer_write_int32(buf, size + 8); + membuffer_write_atom_name(buf, name); + membuffer_write_data(buf, data, size); } -void * membuffer_get_ptr(const membuffer * buf) +void *membuffer_get_ptr(const membuffer * buf) { return buf->data; } @@ -1953,38 +2037,43 @@ void membuffer_set_error(membuffer * buf) buf->error = 1; } -unsigned membuffer_transfer_from_file(membuffer * buf,mp4ff_t * src,unsigned bytes) +unsigned membuffer_transfer_from_file(membuffer * buf, mp4ff_t * src, + unsigned bytes) { unsigned oldsize; - void * bufptr; - + void *bufptr; + oldsize = membuffer_get_size(buf); - if (membuffer_write_data(buf,0,bytes) != bytes) return 0; + if (membuffer_write_data(buf, 0, bytes) != bytes) + return 0; bufptr = membuffer_get_ptr(buf); - if (bufptr==0) return 0; - - if ((unsigned)mp4ff_read_data(src,(char*)bufptr + oldsize,bytes)!=bytes) - { + if (bufptr == 0) + return 0; + + if ((unsigned) mp4ff_read_data(src, (char *) bufptr + oldsize, bytes) != + bytes) { membuffer_set_error(buf); return 0; } - + return bytes; } -static uint32_t create_meta(const mp4ff_metadata_t * data,void ** out_buffer,uint32_t * out_size) +static uint32_t create_meta(const mp4ff_metadata_t * data, void **out_buffer, + uint32_t * out_size) { - membuffer * buf; + membuffer *buf; uint32_t ilst_size; - void * ilst_buffer; + void *ilst_buffer; - if (!create_ilst(data,&ilst_buffer,&ilst_size)) return 0; + if (!create_ilst(data, &ilst_buffer, &ilst_size)) + return 0; buf = membuffer_create(); - membuffer_write_int32(buf,0); - membuffer_write_atom(buf,"ilst",ilst_size,ilst_buffer); + membuffer_write_int32(buf, 0); + membuffer_write_atom(buf, "ilst", ilst_size, ilst_buffer); free(ilst_buffer); *out_size = membuffer_get_size(buf); @@ -1993,17 +2082,19 @@ static uint32_t create_meta(const mp4ff_metadata_t * data,void ** out_buffer,uin return 1; } -static uint32_t create_udta(const mp4ff_metadata_t * data,void ** out_buffer,uint32_t * out_size) +static uint32_t create_udta(const mp4ff_metadata_t * data, void **out_buffer, +uint32_t * out_size) { - membuffer * buf; + membuffer *buf; uint32_t meta_size; - void * meta_buffer; + void *meta_buffer; - if (!create_meta(data,&meta_buffer,&meta_size)) return 0; + if (!create_meta(data, &meta_buffer, &meta_size)) + return 0; buf = membuffer_create(); - membuffer_write_atom(buf,"meta",meta_size,meta_buffer); + membuffer_write_atom(buf, "meta", meta_size, meta_buffer); free(meta_buffer); @@ -2015,150 +2106,165 @@ static uint32_t create_udta(const mp4ff_metadata_t * data,void ** out_buffer,uin static uint32_t fix_byte_order_32(uint32_t src) { - uint32_t result; - uint32_t a, b, c, d; - int8_t data[4]; - - memcpy(data,&src,sizeof(src)); - a = (uint8_t)data[0]; - b = (uint8_t)data[1]; - c = (uint8_t)data[2]; - d = (uint8_t)data[3]; + uint32_t result; + uint32_t a, b, c, d; + int8_t data[4]; + + memcpy(data, &src, sizeof (src)); + a = (uint8_t) data[0]; + b = (uint8_t) data[1]; + c = (uint8_t) data[2]; + d = (uint8_t) data[3]; - result = (a<<24) | (b<<16) | (c<<8) | d; - return (uint32_t)result; + result = (a << 24) | (b << 16) | (c << 8) | d; + return (uint32_t) result; } -static uint32_t modify_moov(mp4ff_t * f,const mp4ff_metadata_t * data,void ** out_buffer,uint32_t * out_size) +static uint32_t modify_moov(mp4ff_t * f, const mp4ff_metadata_t * data, + void **out_buffer, uint32_t * out_size) { uint64_t total_base = f->moov_offset + 8; - uint32_t total_size = (uint32_t)(f->moov_size - 8); + uint32_t total_size = (uint32_t) (f->moov_size - 8); + + uint64_t udta_offset, meta_offset, ilst_offset; + uint32_t udta_size, meta_size, ilst_size; - uint64_t udta_offset,meta_offset,ilst_offset; - uint32_t udta_size, meta_size, ilst_size; - uint32_t new_ilst_size; - void * new_ilst_buffer; - - uint8_t * p_out; + void *new_ilst_buffer; + + uint8_t *p_out; int32_t size_delta; - - - if (!find_atom_v2(f,total_base,total_size,"udta",0,"meta")) - { - membuffer * buf; - void * new_udta_buffer; + + if (!find_atom_v2(f, total_base, total_size, "udta", 0, "meta")) { + membuffer *buf; + void *new_udta_buffer; uint32_t new_udta_size; - if (!create_udta(data,&new_udta_buffer,&new_udta_size)) return 0; - + if (!create_udta(data, &new_udta_buffer, &new_udta_size)) + return 0; + buf = membuffer_create(); - mp4ff_set_position(f,total_base); - membuffer_transfer_from_file(buf,f,total_size); - - membuffer_write_atom(buf,"udta",new_udta_size,new_udta_buffer); + mp4ff_set_position(f, total_base); + membuffer_transfer_from_file(buf, f, total_size); + + membuffer_write_atom(buf, "udta", new_udta_size, + new_udta_buffer); free(new_udta_buffer); - + *out_size = membuffer_get_size(buf); *out_buffer = membuffer_detach(buf); membuffer_free(buf); - return 1; - } - else - { + return 1; + } else { udta_offset = mp4ff_position(f); udta_size = mp4ff_read_int32(f); - if (!find_atom_v2(f,udta_offset+8,udta_size-8,"meta",4,"ilst")) - { - membuffer * buf; - void * new_meta_buffer; + if (!find_atom_v2 (f, udta_offset + 8, udta_size - 8, "meta", 4, "ilst")) { + membuffer *buf; + void *new_meta_buffer; uint32_t new_meta_size; - if (!create_meta(data,&new_meta_buffer,&new_meta_size)) return 0; - + if (!create_meta(data, &new_meta_buffer, &new_meta_size)) + return 0; + buf = membuffer_create(); - mp4ff_set_position(f,total_base); - membuffer_transfer_from_file(buf,f,(uint32_t)(udta_offset - total_base)); - - membuffer_write_int32(buf,udta_size + 8 + new_meta_size); - membuffer_write_atom_name(buf,"udta"); - membuffer_transfer_from_file(buf,f,udta_size); - - membuffer_write_atom(buf,"meta",new_meta_size,new_meta_buffer); + mp4ff_set_position(f, total_base); + membuffer_transfer_from_file(buf, f, + (uint32_t)(udta_offset - total_base)); + + membuffer_write_int32(buf, udta_size + 8 + new_meta_size); + membuffer_write_atom_name(buf, "udta"); + membuffer_transfer_from_file(buf, f, udta_size); + + membuffer_write_atom(buf, "meta", new_meta_size, + new_meta_buffer); free(new_meta_buffer); - + *out_size = membuffer_get_size(buf); *out_buffer = membuffer_detach(buf); membuffer_free(buf); - return 1; + return 1; } meta_offset = mp4ff_position(f); meta_size = mp4ff_read_int32(f); - if (!find_atom(f,meta_offset+12,meta_size-12,"ilst")) return 0;//shouldn't happen, find_atom_v2 above takes care of it + if (!find_atom(f, meta_offset + 12, meta_size - 12, "ilst")) + return 0; //shouldn't happen, find_atom_v2 above takes care of it ilst_offset = mp4ff_position(f); ilst_size = mp4ff_read_int32(f); - if (!create_ilst(data,&new_ilst_buffer,&new_ilst_size)) return 0; - + if (!create_ilst(data, &new_ilst_buffer, &new_ilst_size)) + return 0; + size_delta = new_ilst_size - (ilst_size - 8); *out_size = total_size + size_delta; *out_buffer = malloc(*out_size); - if (*out_buffer == 0) - { + if (*out_buffer == 0) { free(new_ilst_buffer); return 0; } - p_out = (uint8_t*)*out_buffer; - - mp4ff_set_position(f,total_base); - mp4ff_read_data(f,p_out,(uint32_t)(udta_offset - total_base )); p_out += (uint32_t)(udta_offset - total_base ); - *(uint32_t*)p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); p_out += 4; - mp4ff_read_data(f,p_out,4); p_out += 4; - mp4ff_read_data(f,p_out,(uint32_t)(meta_offset - udta_offset - 8)); p_out += (uint32_t)(meta_offset - udta_offset - 8); - *(uint32_t*)p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); p_out += 4; - mp4ff_read_data(f,p_out,4); p_out += 4; - mp4ff_read_data(f,p_out,(uint32_t)(ilst_offset - meta_offset - 8)); p_out += (uint32_t)(ilst_offset - meta_offset - 8); - *(uint32_t*)p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); p_out += 4; - mp4ff_read_data(f,p_out,4); p_out += 4; - - memcpy(p_out,new_ilst_buffer,new_ilst_size); + p_out = (uint8_t *) * out_buffer; + + mp4ff_set_position(f, total_base); + mp4ff_read_data(f, p_out, + (uint32_t) (udta_offset - total_base)); + p_out += (uint32_t) (udta_offset - total_base); + *(uint32_t *) p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); + p_out += 4; + mp4ff_read_data(f, p_out, 4); + p_out += 4; + mp4ff_read_data(f, p_out, + (uint32_t) (meta_offset - udta_offset - 8)); + p_out += (uint32_t) (meta_offset - udta_offset - 8); + *(uint32_t *) p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); + p_out += 4; + mp4ff_read_data(f, p_out, 4); + p_out += 4; + mp4ff_read_data(f, p_out, + (uint32_t) (ilst_offset - meta_offset - 8)); + p_out += (uint32_t) (ilst_offset - meta_offset - 8); + *(uint32_t *) p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); + p_out += 4; + mp4ff_read_data(f, p_out, 4); + p_out += 4; + + memcpy(p_out, new_ilst_buffer, new_ilst_size); p_out += new_ilst_size; - mp4ff_set_position(f,ilst_offset + ilst_size); - mp4ff_read_data(f,p_out,(uint32_t)(total_size - (ilst_offset - total_base) - ilst_size)); + mp4ff_set_position(f, ilst_offset + ilst_size); + mp4ff_read_data(f, p_out, (uint32_t) (total_size + - (ilst_offset - total_base) - ilst_size)); free(new_ilst_buffer); } return 1; } -int32_t mp4ff_write_data(mp4ff_t *f, int8_t *data, uint32_t size) +int32_t mp4ff_write_data(mp4ff_t * f, int8_t * data, uint32_t size) { - int32_t result = 1; + int32_t result = 1; - result = f->stream->write(f->stream->user_data, data, size); + result = f->stream->write(f->stream->user_data, data, size); - f->current_position += size; + f->current_position += size; - return result; + return result; } -int32_t mp4ff_write_int32(mp4ff_t *f,const uint32_t data) +int32_t mp4ff_write_int32(mp4ff_t * f, const uint32_t data) { uint32_t result; - uint32_t a, b, c, d; - int8_t temp[4]; - - *(uint32_t*)temp = data; - a = (uint8_t)temp[0]; - b = (uint8_t)temp[1]; - c = (uint8_t)temp[2]; - d = (uint8_t)temp[3]; + uint32_t a, b, c, d; + int8_t temp[4]; + + *(uint32_t *) temp = data; + a = (uint8_t) temp[0]; + b = (uint8_t) temp[1]; + c = (uint8_t) temp[2]; + d = (uint8_t) temp[3]; - result = (a<<24) | (b<<16) | (c<<8) | d; + result = (a << 24) | (b << 16) | (c << 8) | d; - return mp4ff_write_data(f,(uint8_t*)&result,sizeof(result)); + return mp4ff_write_data(f, (uint8_t *) & result, sizeof (result)); } int32_t mp4ff_truncate(mp4ff_t * f) @@ -2166,97 +2272,90 @@ int32_t mp4ff_truncate(mp4ff_t * f) return f->stream->truncate(f->stream->user_data); } -int32_t mp4ff_meta_update(mp4ff_callback_t *f,const mp4ff_metadata_t * data) +int32_t mp4ff_meta_update(mp4ff_callback_t * f, const mp4ff_metadata_t * data) { - void * new_moov_data; + void *new_moov_data; uint32_t new_moov_size; - mp4ff_t *ff = malloc(sizeof(mp4ff_t)); + mp4ff_t *ff = malloc(sizeof (mp4ff_t)); - memset(ff, 0, sizeof(mp4ff_t)); - ff->stream = f; - mp4ff_set_position(ff,0); + memset(ff, 0, sizeof (mp4ff_t)); + ff->stream = f; + mp4ff_set_position(ff, 0); - parse_atoms(ff,1); + parse_atoms(ff, 1); - - if (!modify_moov(ff,data,&new_moov_data,&new_moov_size)) - { + if (!modify_moov(ff, data, &new_moov_data, &new_moov_size)) { mp4ff_close(ff); return 0; } - /* copy moov atom to end of the file */ - if (ff->last_atom != ATOM_MOOV) - { - char *free_data = "free"; - - /* rename old moov to free */ - mp4ff_set_position(ff, ff->moov_offset + 4); - mp4ff_write_data(ff, free_data, 4); - - mp4ff_set_position(ff, ff->file_size); - mp4ff_write_int32(ff,new_moov_size + 8); - mp4ff_write_data(ff,"moov",4); + /* copy moov atom to end of the file */ + if (ff->last_atom != ATOM_MOOV) { + char *free_data = "free"; + + /* rename old moov to free */ + mp4ff_set_position(ff, ff->moov_offset + 4); + mp4ff_write_data(ff, free_data, 4); + + mp4ff_set_position(ff, ff->file_size); + mp4ff_write_int32(ff, new_moov_size + 8); + mp4ff_write_data(ff, "moov", 4); mp4ff_write_data(ff, new_moov_data, new_moov_size); - } - else - { - mp4ff_set_position(ff, ff->moov_offset); - mp4ff_write_int32(ff,new_moov_size + 8); - mp4ff_write_data(ff,"moov",4); + } else { + mp4ff_set_position(ff, ff->moov_offset); + mp4ff_write_int32(ff, new_moov_size + 8); + mp4ff_write_data(ff, "moov", 4); mp4ff_write_data(ff, new_moov_data, new_moov_size); } mp4ff_truncate(ff); mp4ff_close(ff); - return 1; + return 1; } /* find a metadata item by name */ /* returns 0 if item found, 1 if no such item */ -static int32_t mp4ff_meta_find_by_name(const mp4ff_t *f, const char *item, char **value) +static int32_t mp4ff_meta_find_by_name(const mp4ff_t * f, const char *item, + char **value) { - uint32_t i; + uint32_t i; - for (i = 0; i < f->tags.count; i++) - { - if (!stricmp(f->tags.tags[i].item, item)) - { + for (i = 0; i < f->tags.count; i++) { + if (!stricmp(f->tags.tags[i].item, item)) { *value = strdup(f->tags.tags[i].value); - return 1; - } - } + return 1; + } + } - *value = NULL; + *value = NULL; - /* not found */ - return 0; + /* not found */ + return 0; } -int32_t mp4ff_meta_get_artist(const mp4ff_t *f, char **value) +int32_t mp4ff_meta_get_artist(const mp4ff_t * f, char **value) { - return mp4ff_meta_find_by_name(f, "artist", value); + return mp4ff_meta_find_by_name(f, "artist", value); } -int32_t mp4ff_meta_get_title(const mp4ff_t *f, char **value) +int32_t mp4ff_meta_get_title(const mp4ff_t * f, char **value) { - return mp4ff_meta_find_by_name(f, "title", value); + return mp4ff_meta_find_by_name(f, "title", value); } - -int32_t mp4ff_meta_get_date(const mp4ff_t *f, char **value) +int32_t mp4ff_meta_get_date(const mp4ff_t * f, char **value) { - return mp4ff_meta_find_by_name(f, "date", value); + return mp4ff_meta_find_by_name(f, "date", value); } -int32_t mp4ff_meta_get_album(const mp4ff_t *f, char **value) +int32_t mp4ff_meta_get_album(const mp4ff_t * f, char **value) { - return mp4ff_meta_find_by_name(f, "album", value); + return mp4ff_meta_find_by_name(f, "album", value); } -int32_t mp4ff_meta_get_comment(const mp4ff_t *f, char **value) +int32_t mp4ff_meta_get_comment(const mp4ff_t * f, char **value) { - return mp4ff_meta_find_by_name(f, "comment", value); + return mp4ff_meta_find_by_name(f, "comment", value); } -- 2.39.2