903060 - Media Encoder - Muting audio during a paused recording and resuming generates garbled noise, not silence

Status: RESOLVED DUPLICATE of bug 903023

(Core :: Audio/Video: Recording, defect)

Description

[Jason Smith [:jsmith]]

Might be related to bug 903023.

STR

1. Go to http://mozilla.github.io/qa-testcase-data/webapi/mediarecorder/index.html
2. Select Microphone, setup, and accept permissions
3. In console - run mediaRecorderList[0].start();
4. Wait five seconds and generate sound #1
5. In console - run mediaRecorderList[0].pause();
6. Wait five seconds and generate sound #2
7. In console - run mediaRecorderList[0].stream.getAudioTracks()[0].enabled = false;
8. Wait five seconds and generate sound #3
9. In console - run mediaRecorderList[0].resume();
10. Wait five seconds and generate sound #4
11. Run mediaRecorderList[0].stop();
12. Playback the generated blob

Expected

The media played back should contain sound from the timeframe of sound #1 followed by silence during timeframe of sound #4.

Actual

During the timeframe of sound #4, garbled sound is heard instead of silence.

Comment 1

[Shelly Lin [:shelly]]

Verified that the root cause is fixed in bug 903023.