1 files changed, 121 insertions, 0 deletions
diff --git a/m3u8Parser.cpp b/m3u8Parser.cpp
new file mode 100644
index 0000000..8d7382b
--- /dev/null
+++ b/m3u8Parser.cpp
@@ -0,0 +1,121 @@
+#include "m3u8Parser.h"
+#include <pcrecpp.h>
+
+cM3u8Parser::cM3u8Parser()
+{
+	Init();
+}
+cM3u8Parser::cM3u8Parser(std::istream& m3u8)
+{
+	Init();
+	Parse(m3u8);
+}
+void cM3u8Parser::Init()
+{
+	TargetDuration = -1;
+	MediaSequence = -1;
+	MasterPlaylist = false;
+	AllowCache = true;
+}
+
+
+bool cM3u8Parser::Parse(std::istream& m3u8)
+{
+	bool ok = true;
+	bool nextLineIsMedia = false;
+	int lineNo = 0;
+
+	// prepare regex
+	pcrecpp::RE re("#(EXT[^:\\n]+)(?::[^\\n]+)");
+	pcrecpp::RE reVal("(?::([^\\n]+))");
+
+	std::string line;
+	playListItem pItem;
+	pItem.bandwidth = -1;
+	pItem.file = "";
+	pItem.length = -1;
+	pItem.programId = -1;
+
+	while (std::getline(m3u8, line)) {
+		if(lineNo == 0 && "#EXTM3U" == line ) {
+			// Invalid File
+			ok = false;
+			continue;
+		}
+
+		if( re.FullMatch(line) ) {
+			string var;
+			//string value;
+			re.PartialMatch(line, &var);
+			if("EXT-X-TARGETDURATION" == var) {
+				int value;
+				reVal.PartialMatch(line, &value);
+				TargetDuration = value;
+			} else if ("EXT-X-ALLOW-CACHE" == var) {
+				string value;
+				reVal.PartialMatch(line, &value);
+				AllowCache = "YES" == value;
+			} else if ("EXT-X-MEDIA-SEQUENCE" == var) {
+				int value;
+				reVal.PartialMatch(line, &value);
+				MediaSequence = value;
+			} else if ("EXT-X-STREAM-INF" == var) {
+				MasterPlaylist = true;
+				nextLineIsMedia = true;
+
+				int bandw;
+				pcrecpp::RE reBand("BANDWIDTH=(\\d+)");
+				if(reBand.PartialMatch(line, &bandw)) {
+					pItem.bandwidth = bandw;
+				}
+
+				int id;
+				pcrecpp::RE reId("PROGRAM-ID=(\\d+)");
+				if(reId.PartialMatch(line, &id)) {
+					pItem.programId = id;
+				}
+
+			} else if ("EXTINF" == var) {
+				MasterPlaylist = false;
+				int value;
+				pcrecpp::RE reInt("(?:#EXTINF:([\\d]+))");
+				if( reInt.PartialMatch(line, &value)) {
+					nextLineIsMedia = true;
+					pItem.length = value;
+				}
+			}
+		}
+		// possible mediafile
+		else {
+			if(nextLineIsMedia) {
+				nextLineIsMedia = false;
+				pItem.file = line;
+				pItem.size = 0;
+				vPlaylistItems.push_back(pItem);
+			}
+		}
+		lineNo++;
+	}
+	return ok;
+}
+
+/*
+#EXTM3U
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=4000000
+session/731d4143-c05d-47ed-afa8-37913402630a/8/index.m3u8
+*/
+
+/*
+#EXTM3U
+#EXT-X-TARGETDURATION:3
+#EXT-X-ALLOW-CACHE:NO
+#EXT-X-MEDIA-SEQUENCE:0
+#EXTINF:3, nodesc
+00000.ts
+#EXTINF:3, nodesc
+00001.ts
+...
+#EXTINF:2, nodesc
+01935.ts
+#EXT-X-ENDLIST
+*/