diff options
| -rw-r--r-- | src/demuxers/demux_qt.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/demuxers/demux_qt.c b/src/demuxers/demux_qt.c index 3e5faf390..2fb79fe2a 100644 --- a/src/demuxers/demux_qt.c +++ b/src/demuxers/demux_qt.c @@ -700,15 +700,14 @@ static int is_qt_file(input_plugin_t *qt_file) { return 0; /* show some lenience if the first atom is 'ftyp'; the second atom - * could be 'moov' */ - moov_atom_size = _X_BE_32(&preview[0]); - /* compute the size of the current atom plus the preamble of the + * could be 'moov' + * compute the size of the current atom plus the preamble of the * next atom; if the size is within the range on the preview buffer * then the next atom's preamble is in the preview buffer */ - i = moov_atom_size + ATOM_PREAMBLE_SIZE; - if (i >= MAX_PREVIEW_SIZE) + uint64_t ftyp_atom_size = _X_BE_32(&preview[0]) + ATOM_PREAMBLE_SIZE; + if (ftyp_atom_size >= MAX_PREVIEW_SIZE) return 0; - return _X_BE_32(&preview[i - 4]) == MOOV_ATOM; + return _X_BE_32(&preview[ftyp_atom_size - 4]) == MOOV_ATOM; } } |