static void rtsp_cmd_setup(RTSPContext *ctx, const char *url, RTSPMessageHeader *h) { int i; RTSPTransportField *th; struct sockaddr_in destaddr, myaddr; #ifdef WIN32 int destaddrlen, myaddrlen; #else socklen_t destaddrlen, myaddrlen; #endif char path[4096]; char channelname[VIDEO_SOURCE_CHANNEL_MAX+1][RTSP_STREAM_FORMAT_MAXLEN]; int baselen = strlen(rtspconf->object); int streamid; int rtp_port, rtcp_port; enum RTSPStatusCode errcode; // av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path, sizeof(path), url); for(i = 0; i < VIDEO_SOURCE_CHANNEL_MAX+1; i++) { snprintf(channelname[i], RTSP_STREAM_FORMAT_MAXLEN, RTSP_STREAM_FORMAT, i); } // if(strncmp(path, rtspconf->object, baselen) != 0) { ga_error("invalid object (path=%s)\n", path); rtsp_reply_error(ctx, RTSP_STATUS_AGGREGATE); return; } for(i = 0; i < VIDEO_SOURCE_CHANNEL_MAX+1; i++) { if(strcmp(path+baselen+1, channelname[i]) == 0) { streamid = i; break; } } if(i == VIDEO_SOURCE_CHANNEL_MAX+1) { // not found ga_error("invalid service (path=%s)\n", path); rtsp_reply_error(ctx, RTSP_STATUS_SERVICE); return; } // if(ctx->state != SERVER_STATE_IDLE && ctx->state != SERVER_STATE_READY) { rtsp_reply_error(ctx, RTSP_STATUS_STATE); return; } // create session id? if(ctx->session_id == NULL) { if(h->session_id[0] == '\0') { snprintf(h->session_id, sizeof(h->session_id), "%04x%04x", rand()%0x0ffff, rand()%0x0ffff); ctx->session_id = strdup(h->session_id); ga_error("New session created (id = %s)\n", ctx->session_id); } } // session id must match -- we have only one session if(ctx->session_id == NULL || strcmp(ctx->session_id, h->session_id) != 0) { ga_error("Bad session id %s != %s\n", h->session_id, ctx->session_id); errcode = RTSP_STATUS_SESSION; goto error_setup; } // find supported transport if((th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP)) == NULL) { th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP); } if(th == NULL) { ga_error("Cannot find transport\n"); errcode = RTSP_STATUS_TRANSPORT; goto error_setup; } // destaddrlen = sizeof(destaddr); bzero(&destaddr, destaddrlen); if(getpeername(ctx->fd, (struct sockaddr*) &destaddr, &destaddrlen) < 0) { ga_error("Cannot get peername\n"); errcode = RTSP_STATUS_INTERNAL; goto error_setup; } destaddr.sin_port = htons(th->client_port_min); // myaddrlen = sizeof(myaddr); bzero(&myaddr, myaddrlen); if(getsockname(ctx->fd, (struct sockaddr*) &myaddr, &myaddrlen) < 0) { ga_error("Cannot get sockname\n"); errcode = RTSP_STATUS_INTERNAL; goto error_setup; } // ctx->lower_transport[streamid] = th->lower_transport; if(rtp_new_av_stream(ctx, &destaddr, streamid, streamid == video_source_channels()/*rtspconf->audio_id*/ ? rtspconf->audio_encoder_codec->id : rtspconf->video_encoder_codec->id) < 0) { ga_error("Create AV stream %d failed.\n", streamid); errcode = RTSP_STATUS_TRANSPORT; goto error_setup; } // ctx->state = SERVER_STATE_READY; rtsp_reply_header(ctx, RTSP_STATUS_OK); rtsp_printf(ctx, "Session: %s\r\n", ctx->session_id); switch(th->lower_transport) { case RTSP_LOWER_TRANSPORT_UDP: #ifdef HOLE_PUNCHING rtp_port = ctx->rtpLocalPort[streamid*2]; rtcp_port = ctx->rtpLocalPort[streamid*2+1]; ctx->rtpPeerPort[streamid*2] = htons(th->client_port_min); ctx->rtpPeerPort[streamid*2+1] = htons(th->client_port_max); #else rtp_port = ff_rtp_get_local_rtp_port((URLContext*) ctx->fmtctx[streamid]->pb->opaque); rtcp_port = ff_rtp_get_local_rtcp_port((URLContext*) ctx->fmtctx[streamid]->pb->opaque); #endif ga_error("RTP/UDP: streamid=%d; client=%d-%d; server=%d-%d\n", streamid, th->client_port_min, th->client_port_max, rtp_port, rtcp_port); rtsp_printf(ctx, "Transport: RTP/AVP/UDP;unicast;client_port=%d-%d;server_port=%d-%d\r\n", th->client_port_min, th->client_port_max, rtp_port, rtcp_port); break; case RTSP_LOWER_TRANSPORT_TCP: ga_error("RTP/TCP: interleaved=%d-%d\n", streamid*2, streamid*2+1); rtsp_printf(ctx, "Transport: RTP/AVP/TCP;unicast;interleaved=%d-%d\r\n", streamid*2, streamid*2+1, streamid*2); break; default: // should not happen break; } rtsp_printf(ctx, "\r\n"); return; error_setup: if(ctx->session_id != NULL) { free(ctx->session_id); ctx->session_id = NULL; } if(ctx->encoder[streamid] != NULL) { ctx->encoder[streamid] = NULL; } if(ctx->stream[streamid] != NULL) { ctx->stream[streamid] = NULL; } if(ctx->fmtctx[streamid] != NULL) { avformat_free_context(ctx->fmtctx[streamid]); ctx->fmtctx[streamid] = NULL; } rtsp_reply_error(ctx, errcode); return; }
static int rtsp_read_setup(AVFormatContext *s, char* host, char *controlurl) { RTSPState *rt = s->priv_data; RTSPMessageHeader request = { 0 }; int ret = 0; char url[1024]; RTSPStream *rtsp_st; char responseheaders[1024]; int localport = -1; int transportidx = 0; int streamid = 0; ret = rtsp_read_request(s, &request, "SETUP"); if (ret) return ret; rt->seq++; if (!request.nb_transports) { av_log(s, AV_LOG_ERROR, "No transport defined in SETUP\n"); return AVERROR_INVALIDDATA; } for (transportidx = 0; transportidx < request.nb_transports; transportidx++) { if (!request.transports[transportidx].mode_record || (request.transports[transportidx].lower_transport != RTSP_LOWER_TRANSPORT_UDP && request.transports[transportidx].lower_transport != RTSP_LOWER_TRANSPORT_TCP)) { av_log(s, AV_LOG_ERROR, "mode=record/receive not set or transport" " protocol not supported (yet)\n"); return AVERROR_INVALIDDATA; } } if (request.nb_transports > 1) av_log(s, AV_LOG_WARNING, "More than one transport not supported, " "using first of all\n"); for (streamid = 0; streamid < rt->nb_rtsp_streams; streamid++) { if (!strcmp(rt->rtsp_streams[streamid]->control_url, controlurl)) break; } if (streamid == rt->nb_rtsp_streams) { av_log(s, AV_LOG_ERROR, "Unable to find requested track\n"); return AVERROR_STREAM_NOT_FOUND; } rtsp_st = rt->rtsp_streams[streamid]; localport = rt->rtp_port_min; if (request.transports[0].lower_transport == RTSP_LOWER_TRANSPORT_TCP) { rt->lower_transport = RTSP_LOWER_TRANSPORT_TCP; if ((ret = ff_rtsp_open_transport_ctx(s, rtsp_st))) { rtsp_send_reply(s, RTSP_STATUS_TRANSPORT, NULL, request.seq); return ret; } rtsp_st->interleaved_min = request.transports[0].interleaved_min; rtsp_st->interleaved_max = request.transports[0].interleaved_max; snprintf(responseheaders, sizeof(responseheaders), "Transport: " "RTP/AVP/TCP;unicast;mode=receive;interleaved=%d-%d" "\r\n", request.transports[0].interleaved_min, request.transports[0].interleaved_max); } else { do { ff_url_join(url, sizeof(url), "rtp", NULL, host, localport, NULL); av_dlog(s, "Opening: %s", url); ret = ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE, &s->interrupt_callback, NULL); if (ret) localport += 2; } while (ret || localport > rt->rtp_port_max); if (localport > rt->rtp_port_max) { rtsp_send_reply(s, RTSP_STATUS_TRANSPORT, NULL, request.seq); return ret; } av_dlog(s, "Listening on: %d", ff_rtp_get_local_rtp_port(rtsp_st->rtp_handle)); if ((ret = ff_rtsp_open_transport_ctx(s, rtsp_st))) { rtsp_send_reply(s, RTSP_STATUS_TRANSPORT, NULL, request.seq); return ret; } localport = ff_rtp_get_local_rtp_port(rtsp_st->rtp_handle); snprintf(responseheaders, sizeof(responseheaders), "Transport: " "RTP/AVP/UDP;unicast;mode=receive;source=%s;" "client_port=%d-%d;server_port=%d-%d\r\n", host, request.transports[0].client_port_min, request.transports[0].client_port_max, localport, localport + 1); } /* Establish sessionid if not previously set */ /* Put this in a function? */ /* RFC 2326: session id must be at least 8 digits */ while (strlen(rt->session_id) < 8) av_strlcatf(rt->session_id, 512, "%u", av_get_random_seed()); av_strlcatf(responseheaders, sizeof(responseheaders), "Session: %s\r\n", rt->session_id); /* Send Reply */ rtsp_send_reply(s, RTSP_STATUS_OK, responseheaders, request.seq); rt->state = RTSP_STATE_PAUSED; return 0; }
jint Java_org_devtcg_rojocam_ffmpeg_RtpOutputContext_nativeGetLocalRtpPort(JNIEnv *env, jclass clazz, jint nativeInt) { RtpOutputContext *rtpContext = (RtpOutputContext *)nativeInt; return ff_rtp_get_local_rtp_port(rtpContext->urlContext); }