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Added progressive seeking support with byte positions.

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This commit is contained in:
Thulinma 2012-09-24 15:05:53 +02:00
parent 7369ff606e
commit 3a5482f18e
1 changed files with 43 additions and 5 deletions

48
src/conn_http_progressive.cpp
View file

@ -35,8 +35,9 @@ namespace Connector_HTTP{
FLV::Tag tag;///< Temporary tag buffer.
unsigned int lastStats = 0;
unsigned int seek_pos = 0;//seek position in ms
unsigned int seek_sec = 0;//seek position in ms
unsigned int seek_byte = 0;//seek position in bytes
while (conn.connected()){
//only parse input if available or not yet init'ed
if (!inited){
@ -50,7 +51,28 @@ namespace Connector_HTTP{
streamname = HTTP_R.getUrl().substr(1);
size_t extDot = streamname.rfind('.');
if (extDot != std::string::npos){streamname.resize(extDot);};//strip the extension
seek_pos = atoi(HTTP_R.GetVar("start").c_str()) * 1000;//seconds to ms
int start = 0;
if (!HTTP_R.GetVar("start").empty()){
start = atoi(HTTP_R.GetVar("start").c_str());
}
if (!HTTP_R.GetVar("starttime").empty()){
start = atoi(HTTP_R.GetVar("starttime").c_str());
}
if (!HTTP_R.GetVar("apstart").empty()){
start = atoi(HTTP_R.GetVar("apstart").c_str());
}
if (!HTTP_R.GetVar("ec_seek").empty()){
start = atoi(HTTP_R.GetVar("ec_seek").c_str());
}
if (!HTTP_R.GetVar("fs").empty()){
start = atoi(HTTP_R.GetVar("fs").c_str());
}
//under 3 hours we assume seconds, otherwise byte position
if (start < 10800){
seek_sec = start*1000;//ms, not s
}else{
seek_byte = start;//divide by 1mbit, then *1000 for ms.
}
ready4data = true;
HTTP_R.Clean(); //clean for any possible next requests
}
@ -71,9 +93,25 @@ namespace Connector_HTTP{
ready4data = false;
continue;
}
if (seek_pos){
if (seek_byte){
//wait until we have a header
while (!ss.Received().size()){
ss.spool();
Util::sleep(1);
}
Strm.parsePacket(ss.Received());//read the metadata
int byterate = 0;
if (Strm.metadata.isMember("video")){
byterate += Strm.metadata["video"]["bps"].asInt();
}
if (Strm.metadata.isMember("audio")){
byterate += Strm.metadata["audio"]["bps"].asInt();
}
seek_sec = (seek_byte / byterate) * 1000;
}
if (seek_sec){
std::stringstream cmd;
cmd << "s " << seek_pos << "\n";
cmd << "s " << seek_sec << "\n";
ss.SendNow(cmd.str().c_str());
}
#if DEBUG >= 3