| /* |
| * 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.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; |
| } |
| } |
| |
| static int |
| asfrtp_parse_sdp_line (AVFormatContext *s, int stream_index, |
| PayloadContext *asf, const char *line) |
| { |
| if (av_strstart(line, "stream:", &line)) { |
| RTSPState *rt = s->priv_data; |
| |
| s->streams[stream_index]->id = strtol(line, NULL, 10); |
| |
| if (rt->asf_ctx) { |
| int i; |
| |
| for (i = 0; i < rt->asf_ctx->nb_streams; i++) { |
| if (s->streams[stream_index]->id == rt->asf_ctx->streams[i]->id) { |
| *s->streams[stream_index]->codec = |
| *rt->asf_ctx->streams[i]->codec; |
| rt->asf_ctx->streams[i]->codec->extradata_size = 0; |
| rt->asf_ctx->streams[i]->codec->extradata = NULL; |
| av_set_pts_info(s->streams[stream_index], 32, 1, 1000); |
| } |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| #define RTP_ASF_HANDLER(n, s, t) \ |
| RTPDynamicProtocolHandler ff_ms_rtp_ ## n ## _handler = { \ |
| s, \ |
| t, \ |
| CODEC_ID_NONE, \ |
| asfrtp_parse_sdp_line, \ |
| }; |
| |
| RTP_ASF_HANDLER(asf_pfv, "x-asf-pf", CODEC_TYPE_VIDEO); |
| RTP_ASF_HANDLER(asf_pfa, "x-asf-pf", CODEC_TYPE_AUDIO); |