Merge "MediaCodecList: Add codecs with its own name first. Then add aliases." into main

    JavaMediaCodecListWrapper(sp<IMediaCodecList> mcl)

            : mCodecList(mcl) {

        size_t numCodecs = mcl->countCodecs();

        // First add the codecs with its unique codec name.

        for (size_t ix = 0; ix < numCodecs; ++ix) {

            sp<MediaCodecInfo> info = mcl->getCodecInfo(ix);

            Vector<AString> namesAndAliases;

            info->getAliases(&namesAndAliases);

            namesAndAliases.insertAt(0);

            namesAndAliases.editItemAt(0) = info->getCodecName();

            for (const AString &nameOrAlias : namesAndAliases) {

                if (mInfoIndex.count(nameOrAlias) > 0) {

            AString name = info->getCodecName();

            // The codec names are guaranteed to be unique because:

            // 1. Codecs hal names are unique.

            // 2. MediaCodecListWriter splits MediaCodecInfos supporting

            //    multiple media types and assigns each split a unique name.

            // 3. codecName = supportMultipleMediaTypes ? splitName : halName

            mInfoIndex.emplace(name, mInfoList.size());

            mInfoList.emplace_back(Info { info, name });

        }

        // Then add codecs with its aliases. Skip aliases that have been used.

        for (size_t ix = 0; ix < numCodecs; ++ix) {

            sp<MediaCodecInfo> info = mcl->getCodecInfo(ix);

            Vector<AString> aliases;

            info->getAliases(&aliases);

            for (const AString &alias : aliases) {

                if (mInfoIndex.count(alias) > 0) {

                    // skip duplicate names or aliases

                    continue;

                }

                mInfoIndex.emplace(nameOrAlias, mInfoList.size());

                mInfoList.emplace_back(Info { info, nameOrAlias });

                mInfoIndex.emplace(alias, mInfoList.size());

                mInfoList.emplace_back(Info { info, alias });

            }

        }

    }