2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of Libav.
6 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "libavutil/mem.h"
26 static AVBitStreamFilter *first_bitstream_filter = NULL;
28 AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f)
33 return first_bitstream_filter;
36 void av_register_bitstream_filter(AVBitStreamFilter *bsf)
38 bsf->next = first_bitstream_filter;
39 first_bitstream_filter = bsf;
42 AVBitStreamFilterContext *av_bitstream_filter_init(const char *name)
44 AVBitStreamFilter *bsf = first_bitstream_filter;
47 if (!strcmp(name, bsf->name)) {
48 AVBitStreamFilterContext *bsfc =
49 av_mallocz(sizeof(AVBitStreamFilterContext));
52 bsf->priv_data_size ? av_mallocz(bsf->priv_data_size) : NULL;
60 void av_bitstream_filter_close(AVBitStreamFilterContext *bsfc)
62 if (bsfc->filter->close)
63 bsfc->filter->close(bsfc);
64 av_freep(&bsfc->priv_data);
65 av_parser_close(bsfc->parser);
69 int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
70 AVCodecContext *avctx, const char *args,
71 uint8_t **poutbuf, int *poutbuf_size,
72 const uint8_t *buf, int buf_size, int keyframe)
74 *poutbuf = (uint8_t *)buf;
75 *poutbuf_size = buf_size;
76 return bsfc->filter->filter(bsfc, avctx, args, poutbuf, poutbuf_size,
77 buf, buf_size, keyframe);