Automatic video stream selection

A handheld communication device, comprising:

• a first camera that faces a first direction, the first camera configured to capture a first video stream;
• a second camera that faces a second direction, the second camera configured to capture a second video stream simultaneously with the capture of the first video stream;
• a detection module configured to detect an activity captured by the handheld communication device from the first direction;
• and
• a video processing module configured to generate a multiplexed video stream based on video frames selected from the first video stream in response to the activity detected from the first direction, and video frames selected from the second video stream in response to detecting a termination of the activity from the first direction, wherein
• when the frames from the first video stream are selected, the multiplexed video stream is generated by inserting only the segments of the first video stream into the multiplexed video stream, and
• when the frames from the second video stream are selected, the multiplexed video stream is generated by inserting only the segments of the second video stream into the multiplexed video stream.

A non-transitory machine-readable storage medium having stored therein instructions, the instructions operable with a handheld communication device to, when executed by the handheld communication device, cause the handheld communication device to:

• receive a first video stream from a first camera oriented in a first direction on the handheld communication device and a simultaneously-captured second video stream from a second camera, the second camera facing a second direction opposite the first direction;
• detect an activity captured by the handheld communication device from the first direction;
• and
• generate a multiplexed video stream including portions of the first video stream and portions of the second video stream by automatically selecting the first video stream in response to the detection of the speech activity from the first direction, and automatically switching selection from the first video stream to the second video stream in response to detecting a termination of the activity from the first direction, wherein:
• when the first video stream is selected, the multiplexed video stream is generated by inserting segments of the first video stream only into the multiplexed video stream, and
• when the second video stream is selected, the multiplexed video stream is generated by inserting segments of the second video stream only into the multiplexed video stream.