// RFC2326 10.6 PAUSE (p36)
// 1. A PAUSE request discards all queued PLAY requests. However, the pause
// point in the media stream MUST be maintained. A subsequent PLAY
// request without Range header resumes from the pause point.
int rtsp_server_pause(struct rtsp_server_t* rtsp, const char* uri)
{
int64_t npt = -1L;
const char *prange, *psession;
struct rtsp_header_range_t range;
prange = rtsp_get_header_by_name(rtsp->parser, "range");
psession = rtsp_get_header_by_name(rtsp->parser, "Session");
rtsp->session.session[0] = 0; // clear session value
if (!psession || 0 != rtsp_header_session(psession, &rtsp->session))
{
// 454 Session Not Found
return rtsp_server_reply(rtsp, 454);
}
if (prange && 0 == rtsp_header_range(prange, &range))
{
npt = range.from;
// 10.6 The normal play time for the stream is set to the pause point. (p36)
assert(range.type == RTSP_RANGE_NPT); // 3.6 Normal Play Time (p17)
assert(range.to_value == RTSP_RANGE_TIME_NOVALUE);
// 457 Invalid Range
//rtsp_server_reply(req, 457, NULL);
//return;
}
return rtsp->handler.onpause(rtsp->param, rtsp, uri, rtsp->session.session, -1L == npt ? NULL : &npt);
}
// RFC2326 10.6 PAUSE (p36)
// 1. A PAUSE request discards all queued PLAY requests. However, the pause
// point in the media stream MUST be maintained. A subsequent PLAY
// request without Range header resumes from the pause point.
static void rtsp_server_pause(struct rtsp_server_request_t *req, void* parser, const char* uri)
{
int64_t npt = -1L;
const char *prange, *psession;
struct rtsp_header_range_t range;
struct rtsp_header_session_t session;
struct rtsp_server_context_t* ctx = req->server;
prange = rtsp_get_header_by_name(parser, "range");
psession = rtsp_get_header_by_name(parser, "Session");
if(!psession || 0 != rtsp_header_session(psession, &session))
{
// 454 Session Not Found
rtsp_server_reply(req, 454);
return;
}
if(prange && 0 == rtsp_header_range(prange, &range))
{
npt = range.from;
// 10.6 The normal play time for the stream is set to the pause point. (p36)
assert(range.type == RTSP_RANGE_NPT); // 3.6 Normal Play Time (p17)
assert(range.to_value == RTSP_RANGE_TIME_NOVALUE);
// 457 Invalid Range
//rtsp_server_reply(req, 457);
//return;
}
ctx->handler.pause(ctx->ptr, req, uri, session.session, -1L==npt?NULL:&npt);
}
static void rtsp_server_play(struct rtsp_server_request_t *req, void* parser, const char* uri)
{
int64_t npt = -1L;
double scale = 0.0f;
const char *pscale, *prange, *psession;
struct rtsp_header_range_t range;
struct rtsp_header_session_t session;
struct rtsp_server_context_t* ctx = req->server;
pscale = rtsp_get_header_by_name(parser, "scale");
prange = rtsp_get_header_by_name(parser, "range");
psession = rtsp_get_header_by_name(parser, "Session");
if(!psession || 0 != rtsp_header_session(psession, &session))
{
// 454 (Session Not Found)
rtsp_server_reply(req, 454);
return;
}
if(pscale)
{
scale = atof(pscale);
}
if(prange && 0 == rtsp_header_range(prange, &range))
{
npt = range.from;
}
ctx->handler.play(ctx->ptr, req, uri, session.session, -1L==npt?NULL:&npt, pscale?&scale:NULL);
}
static void rtsp_server_setup(struct rtsp_server_request_t *req, void *parser, const char* uri)
{
size_t n;
const char *psession, *ptransport;
struct rtsp_header_session_t session;
struct rtsp_header_transport_t transport[16];
struct rtsp_server_context_t* ctx = req->server;
psession = rtsp_get_header_by_name(parser, "Session");
ptransport = rtsp_get_header_by_name(parser, "Transport");
memset(transport, 0, sizeof(transport));
n = sizeof(transport)/sizeof(transport[0]);
if(!ptransport || 0 != rtsp_header_transport_ex(ptransport, transport, &n) || 0 == n)
{
// 461 Unsupported Transport
rtsp_server_reply(req, 461);
return;
}
assert(n > 0);
if(psession && 0 == rtsp_header_session(psession, &session))
{
ctx->handler.setup(ctx->ptr, req, uri, session.session, transport, n);
}
else
{
ctx->handler.setup(ctx->ptr, req, uri, NULL, transport, n);
}
}
int rtsp_client_setup_onreply(struct rtsp_client_t* rtsp, void* parser)
{
int code;
const char *session;
const char *transport;
assert(RTSP_SETUP == rtsp->state);
assert(rtsp->progress < rtsp->media_count);
code = rtsp_get_status_code(parser);
if (200 == code)
{
session = rtsp_get_header_by_name(parser, "Session");
transport = rtsp_get_header_by_name(parser, "Transport");
if (!session || 0 != rtsp_header_session(session, &rtsp->media[rtsp->progress].session)
|| !transport || 0 != rtsp_header_transport(transport, &rtsp->media[rtsp->progress].transport))
{
printf("Get rtsp transport error.\n");
return -EINVAL;
}
assert(strlen(session) < sizeof(rtsp->media[0].session.session));
assert(!rtsp->aggregate || 0 == strcmp(rtsp->media[0].session.session, rtsp->media[rtsp->progress].session.session));
if (rtsp->media_count == ++rtsp->progress)
{
return rtsp->handler.onsetup(rtsp->param);
}
else
{
// setup next media
return rtsp_client_media_setup(rtsp);
}
}
else if (401 == code)
{
// Unauthorized
const char* authenticate;
authenticate = rtsp_get_header_by_name(parser, "WWW-Authenticate");
if (authenticate)
{
rtsp_client_www_authenticate(rtsp, authenticate);
}
return -EACCES; // try again
}
else
{
return -1;
}
}
static void rtsp_server_teardown(struct rtsp_server_request_t *req, void *parser, const char* uri)
{
const char *psession;
struct rtsp_header_session_t session;
struct rtsp_server_context_t* ctx = req->server;
psession = rtsp_get_header_by_name(parser, "Session");
if(!psession || 0 != rtsp_header_session(psession, &session))
{
// 454 (Session Not Found)
rtsp_server_reply(req, 454);
return;
}
ctx->handler.teardown(ctx->ptr, req, uri, session.session);
}
const char* rtsp_server_find_header(void* rtsp, const char* name)
{
struct rtsp_server_request_t *req;
req = (struct rtsp_server_request_t *)rtsp;
return rtsp_get_header_by_name(req->parser, name);
}
