| /* |
| * Chomp bitstream filter |
| * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> |
| * |
| * This file is part of FFmpeg. |
| * |
| * 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. |
| * |
| * 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 FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "avcodec.h" |
| #include "internal.h" |
| |
| static int chomp_filter(AVBitStreamFilterContext *bsfc, |
| AVCodecContext *avctx, const char *args, |
| uint8_t **poutbuf, int *poutbuf_size, |
| const uint8_t *buf, int buf_size, |
| int keyframe) |
| { |
| while (buf_size > 0 && !buf[buf_size-1]) |
| buf_size--; |
| |
| *poutbuf = (uint8_t*) buf; |
| *poutbuf_size = buf_size; |
| |
| return 0; |
| } |
| |
| /** |
| * This filter removes a string of NULL bytes from the end of a packet. |
| */ |
| AVBitStreamFilter ff_chomp_bsf = { |
| .name = "chomp", |
| .filter = chomp_filter, |
| }; |