2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 static AVBitStreamFilter *first_bitstream_filter= NULL;
25 AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f){
27 else return first_bitstream_filter;
30 void av_register_bitstream_filter(AVBitStreamFilter *bsf){
31 bsf->next = first_bitstream_filter;
32 first_bitstream_filter= bsf;
35 AVBitStreamFilterContext *av_bitstream_filter_init(const char *name){
36 AVBitStreamFilter *bsf= first_bitstream_filter;
39 if(!strcmp(name, bsf->name)){
40 AVBitStreamFilterContext *bsfc= av_mallocz(sizeof(AVBitStreamFilterContext));
42 bsfc->priv_data= av_mallocz(bsf->priv_data_size);
50 void av_bitstream_filter_close(AVBitStreamFilterContext *bsfc){
51 if(bsfc->filter->close)
52 bsfc->filter->close(bsfc);
53 av_freep(&bsfc->priv_data);
54 av_parser_close(bsfc->parser);
58 int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
59 AVCodecContext *avctx, const char *args,
60 uint8_t **poutbuf, int *poutbuf_size,
61 const uint8_t *buf, int buf_size, int keyframe){
62 *poutbuf= (uint8_t *) buf;
63 *poutbuf_size= buf_size;
64 return bsfc->filter->filter(bsfc, avctx, args, poutbuf, poutbuf_size, buf, buf_size, keyframe);