PeerStreamer

/*

 * 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 = {

    "chomp",

    0,

    chomp_filter,

};