MCM doesn't adapts to stream changes

[joaoantoniocardoso]

For example, when a stream changes encoding from h264 to h265, even though it stopped streaming to switch between the encodings, MCM would stick with the first known encoding and fail to play it back:

{  "stream": {    "id": "aaddd0b3-6342-452f-99eb-5aea89b8cd1c",    "running": false,    "error": "Failed to recreate the stream aaddd0b3-6342-452f-99eb-5aea89b8cd1c: \"Failed to add Sink of type RTSP to the Pipeline. Reason: Failed setting Pipeline aaddd0b3-6342-452f-99eb-5aea89b8cd1c to Playing state. Reason: set state timed-out (2 seconds)\\n\\nStack backtrace:\\n   0: std::backtrace::Backtrace::create\\n   1: anyhow::error::<impl anyhow::Error>::msg\\n   2: anyhow::__private::format_err\\n   3: mavlink_camera_manager::stream::gst::utils::wait_for_element_state\\n   4: mavlink_camera_manager::stream::pipeline::PipelineState::add_sink\\n   5: mavlink_camera_manager::stream::pipeline::Pipeline::add_sink\\n   6: core::result::Result<T,E>::and_then\\n   7: mavlink_camera_manager::stream::StreamState::try_new::{{closure}}::{{closure}}\\n   8: <tracing::instrument::Instrumented<T> as core::future::future::Future>::poll\\n   9: mavlink_camera_manager::stream::Stream::watcher::{{closure}}::{{closure}}\\n  10: <tracing::instrument::Instrumented<T> as core::future::future::Future>::poll\\n  11: mavlink_camera_manager::stream::Stream::try_new::{{closure}}::{{closure}}::{{closure}}\\n  12: tokio::runtime::task::core::Core<T,S>::poll\\n  13: tokio::runtime::task::harness::Harness<T,S>::poll\\n  14: tokio::runtime::scheduler::multi_thread::worker::Context::run_task\\n  15: tokio::runtime::scheduler::multi_thread::worker::Context::run\\n  16: tokio::runtime::context::scoped::Scoped<T>::set\\n  17: tokio::runtime::context::runtime::enter_runtime\\n  18: tokio::runtime::scheduler::multi_thread::worker::run\\n  19: tokio::runtime::task::core::Core<T,S>::poll\\n  20: tokio::runtime::task::harness::Harness<T,S>::poll\\n  21: tokio::runtime::blocking::pool::Inner::run\\n  22: std::sys::backtrace::__rust_begin_short_backtrace\\n  23: core::ops::function::FnOnce::call_once{{vtable.shim}}\\n  24: std::sys::pal::unix::thread::Thread::new::thread_start\\n  25: <unknown>\\n  26: <unknown>\". Trying again in one second...",    "video_and_stream": {      "name": "RadCam 192.168.2.10/0",      "stream_information": {        "endpoints": [          "rtsp://0.0.0.0:8554/radcam_192.168.2.10/0"        ],        "configuration": {          "type": "video",          "encode": "H264",          "height": 2160,          "width": 3840,          "frame_interval": {            "numerator": 1,            "denominator": 25          }        },        "extended_configuration": null      },      "video_source": {        "Onvif": {          "name": "HDIPC - IPCamera (IPCamera)",          "source": {            "Onvif": "rtsp://admin:blue@192.168.2.10:554/stream_0"          },          "manufacturer": "IPCamera",          "model": "HDIPC",          "firmware_version": "18.010.25.4_MAIN_V11(240621)",          "serial_number": "H010001181D0100011775",          "hardware_id": "IPCamera"        }      }    }  },  "device": {    "name": "HDIPC - IPCamera (IPCamera)",    "source": "rtsp://admin:blue@192.168.2.10:554/stream_0",    "formats": [      {        "encode": "H265",        "sizes": [          {            "width": 3840,            "height": 2160,            "intervals": [              {                "numerator": 1,                "denominator": 25              }            ]          }        ]      }    ],    "controls": []  }}

Today's workaround is to reset MCM settings to force the probe.