Add macro for log - LOG_ERROR_IF_REACHED()

[Version] 0.1.6
[Issue Type] Debug

Change-Id: I813d9d383ae80cf4bba59c12eedc65720db9868b
Signed-off-by: Sangchul Lee <sc11.lee@samsung.com>

Add to build source elements by media source type and link it with webrtcbin

Source type selection bug in webrtc_test is also fixed.

[Version] 0.1.5
[Issue Type] Implementation

Change-Id: I513e1524190f72de88fe2dc50d0fb0ec0c5f0200
Signed-off-by: Sangchul Lee <sc11.lee@samsung.com>

Add infrastructure for adding/removing media source

g_hash_table is used to manage source elements.

[Version] 0.1.4
[Issue Type] Implementation

Change-Id: Ifcf131c61cb48ec284d36f5765afefab9def1901
Signed-off-by: Sangchul Lee <sc11.lee@samsung.com>

Add the basic state change logic

[Version] 0.1.3
[Issue Type] Implementation

Change-Id: Ib2ecbfde9b7791753c8c2f56c34bbda7ed8dd616
Signed-off-by: Sangchul Lee <sc11.lee@samsung.com>

Add webrtcbin element to pipeline and add _gst_destroy_pipeline() sub-function

[Version] 0.1.2
[Issue Type] Improvement

Change-Id: I324a02b04453eb9dfebe4105241e55036ee14c64
Signed-off-by: Sangchul Lee <sc11.lee@samsung.com>

Add initial APIs and test application

[Version] 0.1.1
[Issue Type] Initial code

Change-Id: I398b849a97e7d88d0569ee74385754c59264d768
Signed-off-by: Sangchul Lee <sc11.lee@samsung.com>

Initial empty repository