diff options
Diffstat (limited to 'libavcodec/lagarithrac.c')
-rw-r--r-- | libavcodec/lagarithrac.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/libavcodec/lagarithrac.c b/libavcodec/lagarithrac.c index edfb18f..37ac2cf 100644 --- a/libavcodec/lagarithrac.c +++ b/libavcodec/lagarithrac.c @@ -3,20 +3,20 @@ * Copyright (c) 2009 Nathan Caldwell <saintdev (at) gmail.com> * Copyright (c) 2009 David Conrad * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -41,19 +41,16 @@ void ff_lag_rac_init(lag_rac *l, GetBitContext *gb, int length) left = get_bits_left(gb) >> 3; l->bytestream_start = l->bytestream = gb->buffer + get_bits_count(gb) / 8; - l->bytestream_end = l->bytestream_start + FFMIN(length, left); + l->bytestream_end = l->bytestream_start + left; l->range = 0x80; l->low = *l->bytestream >> 1; - l->hash_shift = FFMAX(l->scale - 8, 0); + l->hash_shift = FFMAX((int)l->scale - 10, 0); - for (i = j = 0; i < 256; i++) { + for (i = j = 0; i < 1024; i++) { unsigned r = i << l->hash_shift; while (l->prob[j + 1] <= r) j++; l->range_hash[i] = j; } - - /* Add conversion factor to hash_shift so we don't have to in lag_get_rac. */ - l->hash_shift += 23; } |