stagefright: use CODECS field in EXT-X_STREAM-INF as fallback (f7e34cfc) · Commits · e / os / android_frameworks_av

media/libstagefright/httplive/M3UParser.cpp

+153 −7

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@
		#include <media/stagefright/foundation/ADebug.h>
		#include <media/stagefright/foundation/AMessage.h>
		#include <media/stagefright/MediaErrors.h>
		#include <media/stagefright/Utils.h>
		#include <media/mediaplayer.h>

		namespace android {
		@@ -352,9 +353,27 @@ bool M3UParser::getTypeURI(size_t index, const char key, AString uri) const {
		if (!meta->findString(key, &groupID)) {
		*uri = mItems.itemAt(index).mURI;

		AString codecs;
		if (!meta->findString("codecs", &codecs)) {
		// Assume media without any more specific attribute contains
		// audio and video, but no subtitles.
		return !strcmp("audio", key) \|\| !strcmp("video", key);
		} else {
		// Split the comma separated list of codecs.
		size_t offset = 0;
		ssize_t commaPos = -1;
		codecs.append(',');
		while ((commaPos = codecs.find(",", offset)) >= 0) {
		AString codec(codecs, offset, commaPos - offset);
		// return true only if a codec of type `key` ("audio"/"video")
		// is found.
		if (codecIsType(codec, key)) {
		return true;
		}
		offset = commaPos + 1;
		}
		return false;
		}
		}

		sp<MediaGroup> group = mMediaGroups.valueFor(groupID);
		@@ -684,12 +703,22 @@ status_t M3UParser::parseStreamInf(
		*meta = new AMessage;
		}
		(*meta)->setInt32("bandwidth", x);
		} else if (!strcasecmp("codecs", key.c_str())) {
		if (!isQuotedString(val)) {
		ALOGE("Expected quoted string for %s attribute, "
		"got '%s' instead.",
		key.c_str(), val.c_str());;

		return ERROR_MALFORMED;
		}

		key.tolower();
		const AString &codecs = unquoteString(val);
		(*meta)->setString(key.c_str(), codecs.c_str());
		} else if (!strcasecmp("audio", key.c_str())
		\|\| !strcasecmp("video", key.c_str())
		\|\| !strcasecmp("subtitles", key.c_str())) {
		if (val.size() < 2
		\|\| val.c_str()[0] != '"'
		\|\| val.c_str()[val.size() - 1] != '"') {
		if (!isQuotedString(val)) {
		ALOGE("Expected quoted string for %s attribute, "
		"got '%s' instead.",
		key.c_str(), val.c_str());
		@@ -697,7 +726,7 @@ status_t M3UParser::parseStreamInf(
		return ERROR_MALFORMED;
		}

		AString groupID(val, 1, val.size() - 2);
		const AString &groupID = unquoteString(val);
		ssize_t groupIndex = mMediaGroups.indexOfKey(groupID);

		if (groupIndex < 0) {
		@@ -1086,4 +1115,121 @@ status_t M3UParser::ParseDouble(const char s, double x) {
		return OK;
		}

		// static
		bool M3UParser::isQuotedString(const AString &str) {
		if (str.size() < 2
		\|\| str.c_str()[0] != '"'
		\|\| str.c_str()[str.size() - 1] != '"') {
		return false;
		}
		return true;
		}

		// static
		AString M3UParser::unquoteString(const AString &str) {
		if (!isQuotedString(str)) {
		return str;
		}
		return AString(str, 1, str.size() - 2);
		}

		// static
		bool M3UParser::codecIsType(const AString &codec, const char *type) {
		if (codec.size() < 4) {
		return false;
		}
		const char *c = codec.c_str();
		switch (FOURCC(c[0], c[1], c[2], c[3])) {
		// List extracted from http://www.mp4ra.org/codecs.html
		case 'ac-3':
		case 'alac':
		case 'dra1':
		case 'dtsc':
		case 'dtse':
		case 'dtsh':
		case 'dtsl':
		case 'ec-3':
		case 'enca':
		case 'g719':
		case 'g726':
		case 'm4ae':
		case 'mlpa':
		case 'mp4a':
		case 'raw ':
		case 'samr':
		case 'sawb':
		case 'sawp':
		case 'sevc':
		case 'sqcp':
		case 'ssmv':
		case 'twos':
		case 'agsm':
		case 'alaw':
		case 'dvi ':
		case 'fl32':
		case 'fl64':
		case 'ima4':
		case 'in24':
		case 'in32':
		case 'lpcm':
		case 'Qclp':
		case 'QDM2':
		case 'QDMC':
		case 'ulaw':
		case 'vdva':
		return !strcmp("audio", type);

		case 'avc1':
		case 'avc2':
		case 'avcp':
		case 'drac':
		case 'encv':
		case 'mjp2':
		case 'mp4v':
		case 'mvc1':
		case 'mvc2':
		case 'resv':
		case 's263':
		case 'svc1':
		case 'vc-1':
		case 'CFHD':
		case 'civd':
		case 'DV10':
		case 'dvh5':
		case 'dvh6':
		case 'dvhp':
		case 'DVOO':
		case 'DVOR':
		case 'DVTV':
		case 'DVVT':
		case 'flic':
		case 'gif ':
		case 'h261':
		case 'h263':
		case 'HD10':
		case 'jpeg':
		case 'M105':
		case 'mjpa':
		case 'mjpb':
		case 'png ':
		case 'PNTG':
		case 'rle ':
		case 'rpza':
		case 'Shr0':
		case 'Shr1':
		case 'Shr2':
		case 'Shr3':
		case 'Shr4':
		case 'SVQ1':
		case 'SVQ3':
		case 'tga ':
		case 'tiff':
		case 'WRLE':
		return !strcmp("video", type);

		default:
		return false;
		}
		}

		} // namespace android

media/libstagefright/httplive/M3UParser.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -100,6 +100,10 @@ private:
		static status_t ParseInt32(const char s, int32_t x);
		static status_t ParseDouble(const char s, double x);

		static bool isQuotedString(const AString &str);
		static AString unquoteString(const AString &str);
		static bool codecIsType(const AString &codec, const char *type);

		DISALLOW_EVIL_CONSTRUCTORS(M3UParser);
		};