PeerStreamer

/*

 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>

 *

 * 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 remove_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,

                     uint8_t **poutbuf, int *poutbuf_size,

                     const uint8_t *buf, int buf_size, int keyframe){

    int cmd= args ? *args : 0;

    AVCodecParserContext *s;

    if(!bsfc->parser){

        bsfc->parser= av_parser_init(avctx->codec_id);

    }

    s= bsfc->parser;

    if(s && s->parser->split){

        if(  (((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)) && cmd=='a')

           ||(!keyframe && cmd=='k')

           ||(cmd=='e' || !cmd)

          ){

            int i= s->parser->split(avctx, buf, buf_size);

            buf += i;

            buf_size -= i;

        }

    }

    *poutbuf= (uint8_t *) buf;

    *poutbuf_size= buf_size;

    return 0;

}

AVBitStreamFilter ff_remove_extradata_bsf={

    "remove_extra",

    0,

    remove_extradata,

};