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ZLMediaKit
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hls拉流动态计算切片超时时间 (#1477) 

* 动态计算切片超时时间

设置最大超时时间倍数和最小倍数,然后根据上一个切片的下载情况动态增加或者减少切片的超时时间.

* Update HlsPlayer.cpp
This commit is contained in:
alexliyu7352 2022-03-12 09:39:33 +08:00 committed by GitHub
parent b4241e12d5
commit 276f763c08
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2 changed files with 11 additions and 2 deletions
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9
src/Http/HlsPlayer.cpp
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@ -104,6 +104,11 @@ void HlsPlayer::fetchSegment() {
}
if (err) {
WarnL << "download ts segment " << url << " failed:" << err.what();
if (err.getErrCode() == Err_timeout) {
strong_self->_timeout_multiple = MAX(strong_self->_timeout_multiple + 1, MAX_TIMEOUT_MULTIPLE);
}else{
strong_self->_timeout_multiple = MAX(strong_self->_timeout_multiple -1 , MIN_TIMEOUT_MULTIPLE);
}
}
//提前半秒下载好
auto delay = duration - ticker.elapsedTime() / 1000.0f - 0.5;
@ -122,8 +127,8 @@ void HlsPlayer::fetchSegment() {
});
_http_ts_player->setMethod("GET");
//ts切片必须在其时长的3倍内下载完毕
_http_ts_player->setCompleteTimeout(3 * duration * 1000);
//ts切片必须在其时长的2-5倍内下载完毕
_http_ts_player->setCompleteTimeout(_timeout_multiple * duration * 1000);
_http_ts_player->sendRequest(url);
}

4
src/Http/HlsPlayer.h
View File

@ -17,6 +17,9 @@
#include "HlsParser.h"
#include "Rtp/TSDecoder.h"
#define MIN_TIMEOUT_MULTIPLE 2
#define MAX_TIMEOUT_MULTIPLE 5
namespace mediakit {
class HlsDemuxer : public MediaSinkInterface , public TrackSource, public std::enable_shared_from_this<HlsDemuxer> {
@ -101,6 +104,7 @@ private:
std::list<std::string> _ts_url_sort;
std::set<std::string, UrlComp> _ts_url_cache;
HttpTSPlayer::Ptr _http_ts_player;
int _timeout_multiple = MIN_TIMEOUT_MULTIPLE;
};
class HlsPlayerImp : public PlayerImp<HlsPlayer, PlayerBase>, private TrackListener {