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-rw-r--r--media/libstagefright/wifi-display/rtp/RTPSender.cpp14
1 files changed, 10 insertions, 4 deletions
diff --git a/media/libstagefright/wifi-display/rtp/RTPSender.cpp b/media/libstagefright/wifi-display/rtp/RTPSender.cpp
index c66a898..83af393 100644
--- a/media/libstagefright/wifi-display/rtp/RTPSender.cpp
+++ b/media/libstagefright/wifi-display/rtp/RTPSender.cpp
@@ -762,10 +762,16 @@ status_t RTPSender::parseTSFB(const uint8_t *data, size_t size) {
return OK;
}
-status_t RTPSender::parseAPP(const uint8_t *data, size_t size __unused) {
- if (!memcmp("late", &data[8], 4)) {
- int64_t avgLatencyUs = (int64_t)U64_AT(&data[12]);
- int64_t maxLatencyUs = (int64_t)U64_AT(&data[20]);
+status_t RTPSender::parseAPP(const uint8_t *data, size_t size) {
+ static const size_t late_offset = 8;
+ static const char late_string[] = "late";
+ static const size_t avgLatencyUs_offset = late_offset + sizeof(late_string) - 1;
+ static const size_t maxLatencyUs_offset = avgLatencyUs_offset + sizeof(int64_t);
+
+ if ((size >= (maxLatencyUs_offset + sizeof(int64_t)))
+ && !memcmp(late_string, &data[late_offset], sizeof(late_string) - 1)) {
+ int64_t avgLatencyUs = (int64_t)U64_AT(&data[avgLatencyUs_offset]);
+ int64_t maxLatencyUs = (int64_t)U64_AT(&data[maxLatencyUs_offset]);
sp<AMessage> notify = mNotify->dup();
notify->setInt32("what", kWhatInformSender);