970778 - Media Recording - Recording a muted video stream records the last video frame repeatedly, rather than using black video frames

Status: RESOLVED DUPLICATE of bug 1029316

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

Description

[Jason Smith [:jsmith]]

Build - 2/10/2014 Nightly

STR

1. Go to http://mozilla.github.io/qa-testcase-data/webapi/mediarecorder/
2. Under "Setup GUM Stream for Media Recorder", select the following & setup:
** Enable Camera
** Mime Type = video/webm
3. Accept permissions to access your camera
4. Select start recording
5. 3 seconds into the recording, select mute media stream
6. 8 seconds into the recording, select unmute media stream
7. 12 seconds into the recording, select stop recording
8. Select the blob URL generated

Expected

When the media stream is muted, the playback of the recorded video should show black frames.

Actual

When the media stream is muted, the playback of the recorded video repeatedly shows the last video frame rendered by the camera.

Comment 1

[Randy Lin [:rlin] - Be Mozillian on 2015/01/26]

The same issue as Bug 1029316 and use that to track/fix this problem.