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Fixes widevine metrics proto serialization

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Changes to a much more efficient and more reusable protobuf format for
metrics.

Test: Widevine tests, Google Play and MediaDrm CTS test.
Bug: 73724218

Change-Id: I3299051d7a16bcd7758c8f272415ca40e10c1313
This commit is contained in:
Adam Stone
2018-02-20 19:12:02 -08:00
parent efc008c5a1
commit b19f0d106f
25 changed files with 1587 additions and 1867 deletions
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20
libwvdrmengine/cdm/metrics/src/distribution.cpp
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@@ -9,20 +9,19 @@
namespace wvcdm {
namespace metrics {
Distribution::Distribution() :
count_(0LL),
min_(DBL_MAX),
max_(-DBL_MAX),
mean_(0.0),
sum_squared_deviation_(0.0) {
}
Distribution::Distribution()
: count_(0ULL),
min_(FLT_MAX),
max_(-FLT_MAX),
mean_(0.0),
sum_squared_deviation_(0.0) {}
void Distribution::Record(double value) {
void Distribution::Record(float value) {
// Using method of provisional means.
double deviation = value - mean_;
float deviation = value - mean_;
mean_ = mean_ + (deviation / ++count_);
sum_squared_deviation_ =
sum_squared_deviation_ + (deviation * (value - mean_));
sum_squared_deviation_ + (deviation * (value - mean_));
min_ = min_ < value ? min_ : value;
max_ = max_ > value ? max_ : value;
@@ -30,4 +29,3 @@ void Distribution::Record(double value) {
} // namespace metrics
} // namespace wvcdm