From cd7105e6a0e10f5ff759e98147c2aeb05b0238a0 Mon Sep 17 00:00:00 2001 From: Aurelien Jacobs Date: Sat, 19 May 2007 00:30:15 +0000 Subject: move noise bitstream filter in its own file Originally committed as revision 9064 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/noise_bsf.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 libavcodec/noise_bsf.c (limited to 'libavcodec/noise_bsf.c') diff --git a/libavcodec/noise_bsf.c b/libavcodec/noise_bsf.c new file mode 100644 index 0000000000..6085a5bba4 --- /dev/null +++ b/libavcodec/noise_bsf.c @@ -0,0 +1,46 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * 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" + + +static int noise(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args, + uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size, int keyframe){ + int amount= args ? atoi(args) : 10000; + unsigned int *state= bsfc->priv_data; + int i; + + *poutbuf= av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); + + memcpy(*poutbuf, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE); + for(i=0; i