Revert "fork"

This reverts commit 824ff0e2ffd82bbbf9fae772a7584bbe39b1acbf.
Revert "update gst-command"

This reverts commit 224cf2648b50c542ab334f3fb61c277db1b1e2ca.
Revert "merge video part in, but still bugs exist"

This reverts commit 9722d43eaaca960dc84fdfa1f55fd01ea347ce2b.