FFmpeg/libavformat/rtp_asf.c

/*
 * Microsoft RTP/ASF support.
 * Copyright (c) 2008 Ronald S. Bultje
 *
 * 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
 */

/**
 * @file libavformat/rtp_asf.c
 * @brief Microsoft RTP/ASF support
 * @author Ronald S. Bultje <rbultje@ronald.bitfreak.net>
 */

#include <libavutil/base64.h>
#include <libavutil/avstring.h>
#include "rtp_asf.h"
#include "rtsp.h"
#include "asf.h"

void ff_wms_parse_sdp_a_line(AVFormatContext *s, const char *p)
{
    if (av_strstart(p, "pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,", &p)) {
        ByteIOContext pb;
        RTSPState *rt = s->priv_data;
        int len = strlen(p) * 6 / 8;
        char *buf = av_mallocz(len);
        av_base64_decode(buf, p, len);

        init_put_byte(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
        if (rt->asf_ctx) {
            av_close_input_stream(rt->asf_ctx);
            rt->asf_ctx = NULL;
        }
        av_open_input_stream(&rt->asf_ctx, &pb, "", &asf_demuxer, NULL);
        av_free(buf);
        rt->asf_ctx->pb = NULL;
    }
}