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ffmpeg / libavformat / rtp_asf.c @ e9fce261

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/*
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 * Microsoft RTP/ASF support.
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 * Copyright (c) 2008 Ronald S. Bultje
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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/**
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 * @file libavformat/rtp_asf.c
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 * @brief Microsoft RTP/ASF support
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 * @author Ronald S. Bultje <rbultje@ronald.bitfreak.net>
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 */
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#include <libavutil/base64.h>
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#include <libavutil/avstring.h>
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#include "rtp.h"
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#include "rtp_asf.h"
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#include "rtsp.h"
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#include "asf.h"
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void ff_wms_parse_sdp_a_line(AVFormatContext *s, const char *p)
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{
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    if (av_strstart(p, "pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,", &p)) {
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        ByteIOContext pb;
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        RTSPState *rt = s->priv_data;
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        int len = strlen(p) * 6 / 8;
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        char *buf = av_mallocz(len);
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        av_base64_decode(buf, p, len);
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        init_put_byte(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
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        if (rt->asf_ctx) {
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            av_close_input_stream(rt->asf_ctx);
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            rt->asf_ctx = NULL;
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        }
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        av_open_input_stream(&rt->asf_ctx, &pb, "", &asf_demuxer, NULL);
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        av_free(buf);
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        rt->asf_ctx->pb = NULL;
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    }
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}
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static int
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asfrtp_parse_sdp_line (AVFormatContext *s, int stream_index,
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                       PayloadContext *asf, const char *line)
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{
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    if (av_strstart(line, "stream:", &line)) {
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        RTSPState *rt = s->priv_data;
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        s->streams[stream_index]->id = strtol(line, NULL, 10);
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        if (rt->asf_ctx) {
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            int i;
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            for (i = 0; i < rt->asf_ctx->nb_streams; i++) {
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                if (s->streams[stream_index]->id == rt->asf_ctx->streams[i]->id) {
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                    *s->streams[stream_index]->codec =
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                        *rt->asf_ctx->streams[i]->codec;
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                    rt->asf_ctx->streams[i]->codec->extradata_size = 0;
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                    rt->asf_ctx->streams[i]->codec->extradata = NULL;
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                    av_set_pts_info(s->streams[stream_index], 32, 1, 1000);
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                }
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           }
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        }
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    }
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    return 0;
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}
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#define RTP_ASF_HANDLER(n, s, t) \
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RTPDynamicProtocolHandler ff_ms_rtp_ ## n ## _handler = { \
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    s, \
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    t, \
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    CODEC_ID_NONE, \
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    asfrtp_parse_sdp_line, \
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};
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RTP_ASF_HANDLER(asf_pfv, "x-asf-pf",  CODEC_TYPE_VIDEO);
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RTP_ASF_HANDLER(asf_pfa, "x-asf-pf",  CODEC_TYPE_AUDIO);