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print atom info during parsing, patch by Frank Barchard, fbarchard at google dot com 

Originally committed as revision 19435 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Frank Barchard 2009-07-15 08:57:27 +00:00 committed by Baptiste Coudurier
parent ad420e25e2
commit 65b875d8fc
1 changed files with 24 additions and 16 deletions
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40
tools/qt-faststart.c
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@ -80,6 +80,7 @@ int main(int argc, char *argv[])
unsigned char atom_bytes[ATOM_PREAMBLE_SIZE];
uint32_t atom_type = 0;
uint64_t atom_size = 0;
uint64_t atom_offset = 0;
uint64_t last_offset;
unsigned char *moov_atom;
unsigned char *ftyp_atom = 0;
@ -112,20 +113,6 @@ int main(int argc, char *argv[])
atom_size = (uint32_t)BE_32(&atom_bytes[0]);
atom_type = BE_32(&atom_bytes[4]);
if ((atom_type != FREE_ATOM) &&
(atom_type != JUNK_ATOM) &&
(atom_type != MDAT_ATOM) &&
(atom_type != MOOV_ATOM) &&
(atom_type != PNOT_ATOM) &&
(atom_type != SKIP_ATOM) &&
(atom_type != WIDE_ATOM) &&
(atom_type != PICT_ATOM) &&
(atom_type != UUID_ATOM) &&
(atom_type != FTYP_ATOM)) {
printf ("encountered non-QT top-level atom (is this a Quicktime file?)\n");
break;
}
/* keep ftyp atom */
if (atom_type == FTYP_ATOM) {
ftyp_atom_size = atom_size;
@ -144,8 +131,7 @@ int main(int argc, char *argv[])
return 1;
}
start_offset = ftello(infile);
continue;
}
} else {
/* 64-bit special case */
if (atom_size == 1) {
@ -158,6 +144,28 @@ int main(int argc, char *argv[])
fseeko(infile, atom_size - ATOM_PREAMBLE_SIZE, SEEK_CUR);
}
}
printf("%c%c%c%c %10"PRIu64" %"PRIu64"\n",
(atom_type >> 24) & 255,
(atom_type >> 16) & 255,
(atom_type >> 8) & 255,
(atom_type >> 0) & 255,
atom_offset,
atom_size);
if ((atom_type != FREE_ATOM) &&
(atom_type != JUNK_ATOM) &&
(atom_type != MDAT_ATOM) &&
(atom_type != MOOV_ATOM) &&
(atom_type != PNOT_ATOM) &&
(atom_type != SKIP_ATOM) &&
(atom_type != WIDE_ATOM) &&
(atom_type != PICT_ATOM) &&
(atom_type != UUID_ATOM) &&
(atom_type != FTYP_ATOM)) {
printf ("encountered non-QT top-level atom (is this a Quicktime file?)\n");
break;
}
atom_offset += atom_size;
}
if (atom_type != MOOV_ATOM) {
printf ("last atom in file was not a moov atom\n");