Video of may V380 Camera don't work
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**Describe The Problem:**
Hello, I have a V380 camera, which I wanted to integrate with this plugin.
Basically it worked, but the picture is only loaded in the preview, so when I switch to the room where the camera is located, the picture is displayed. If I then click on the camera, the Home app tries to load the picture, but fails with the message "No response".
with the VLC player I can call up this URL
rtsp://myUser:myPassword@myIP:554/live/ch00_1

**To Reproduce:**
I click on the camera and want to watch the video

**Logs:**
<!-- Bug reports that do not contain logs may be closed without warning. -->

```
[9.4.2021, 18:55:34] [Camera FFmpeg] [Garage] Snapshot requested: 1280 x 720
[9.4.2021, 18:55:34] [Camera FFmpeg] [Garage] Snapshot command: /usr/local/lib/node_modules/homebridge-camera-ffmpeg/node_modules/ffmpeg-for-homebridge/ffmpeg -i rtsp://user:passwort@myIP:554/live/ch00_1 -frames:v 1 -f image2 - -hide_banner -loglevel error
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] Fetching snapshot took 3.367 seconds.
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] Sending snapshot: 1280 x 720
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] Resize command: /usr/local/lib/node_modules/homebridge-camera-ffmpeg/node_modules/ffmpeg-for-homebridge/ffmpeg -i pipe: -frames:v 1 -filter:v scale='min(1280,iw)':'min(720,ih)':force_original_aspect_ratio=decrease -f image2 -
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] Video stream requested: 1280 x 720, 30 fps, 299 kbps
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] Starting video stream: 640 x 360, 20 fps, 299 kbps (AAC-eld)
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] Stream command: /usr/local/lib/node_modules/homebridge-camera-ffmpeg/node_modules/ffmpeg-for-homebridge/ffmpeg -i rtsp://user:passwort@myIP:554/live/ch00_1 -an -sn -dn -codec:v h264 -pix_fmt yuv420p -color_range mpeg -r 20 -f rawvideo -filter:v scale='min(640,iw)':'min(360,ih)':force_original_aspect_ratio=decrease,scale=trunc(iw/2)*2:trunc(ih/2)*2 -b:v 299k -payload_type 99 -ssrc 10005367 -f rtp -srtp_out_suite AES_CM_128_HMAC_SHA1_80 -srtp_out_params p9qbFG8s4pzEsO15/CW5ZagkljIvVlfDgAIJQruX srtp://192.168.178.175:57385?rtcpport=57385&pkt_size=1316 -vn -sn -dn -codec:a libfdk_aac -profile:a aac_eld -flags +global_header -f null -ar 16k -b:a 24k -ac 1 -payload_type 110 -ssrc 15574659 -f rtp -srtp_out_suite AES_CM_128_HMAC_SHA1_80 -srtp_out_params uI6W1/LhtxiP94iylpTXWmeCVLG7ByAJfW4xSn4O srtp://192.168.178.175:63546?rtcpport=63546&pkt_size=188 -loglevel level+verbose -progress pipe:1
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info] ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   configuration: --pkgconfigdir=/build/workspace/lib/pkgconfig --prefix=/build/workspace --pkg-config-flags=--static --extra-cflags=-I/build/workspace/include --extra-ldflags=-L/build/workspace/lib --extra-libs='-lpthread -lm' --enable-static --disable-debug --disable-shared --disable-ffplay --disable-doc --enable-openssl --enable-gpl --enable-version3 --enable-nonfree --enable-pthreads --enable-libvpx --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libx264 --enable-runtime-cpudetect --enable-libfdk-aac --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-decoder=h264 --enable-network --enable-protocol=tcp --enable-libspeex --enable-demuxer=rtsp --enable-omx-rpi --enable-mmal --enable-indev=alsa --enable-outdev=alsa
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   libavutil      56. 51.100 / 56. 51.100
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   libavcodec     58. 91.100 / 58. 91.100
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   libavformat    58. 45.100 / 58. 45.100
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   libavdevice    58. 10.100 / 58. 10.100
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   libavfilter     7. 85.100 /  7. 85.100
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   libswscale      5.  7.100 /  5.  7.100
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   libswresample   3.  7.100 /  3.  7.100
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [info]   libpostproc    55.  7.100 / 55.  7.100
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [tcp @ 0x33e2c70] [verbose] Starting connection attempt to 192.168.178.197 port 554
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [tcp @ 0x33e2c70] [verbose] Successfully connected to 192.168.178.197 port 554
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [rtsp @ 0x33e0ca0] [verbose] SDP:
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] v=0
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] s=streamed by the macro-video rtsp server
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] t=0 0
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] a=control:*
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] a=range:npt=0-
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] a=x-qt-text-nam:streamed by the macro-video rtsp server
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] c=IN IP4 0.0.0.0
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] m=video 0 RTP/AVP 96
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] b=AS:500
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] a=rtpmap:96 H264/90000
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] a=fmtp:96 profile-level-id=TeAo;packetization-mode=1;sprop-parameter-sets=J03gKI1oBQBboQAAAwABAAADACgPFCKg,KO4BBJI=
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] a=control:track1
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage]
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [udp @ 0x33e4970] [warning] attempted to set receive buffer to size 393216 but it only ended up set as 360448
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [udp @ 0x33f4cc0] [warning] attempted to set receive buffer to size 393216 but it only ended up set as 360448
[9.4.2021, 18:55:37] [Camera FFmpeg] [Garage] [rtsp @ 0x33e0ca0] [verbose] setting jitter buffer size to 500
[9.4.2021, 18:55:38] [Camera FFmpeg] [Garage] [h264 @ 0x33e3df0] [verbose] Reinit context to 1280x720, pix_fmt: yuv420p
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [info] Input #0, rtsp, from 'rtsp://user:passwort@myIP:554/live/ch00_1':
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [info]   Metadata:
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [info]     title           : streamed by the macro-video rtsp server
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [info]   Duration: N/A, start: 0.629000, bitrate: N/A
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [info]     Stream #0:0: Video: h264 (Main), 1 reference frame, yuv420p(progressive, left), 1280x720, 20 fps, 20 tbr, 90k tbn, 40 tbc
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [verbose] Matched encoder 'libx264' for codec 'h264'.
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [info] Output #1, rtp, to 'srtp://192.168.178.175:63546?rtcpport=63546&pkt_size=188':
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [error] Output file #1 does not contain any stream
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] [AVIOContext @ 0x34388a0] [verbose] Statistics: 0 seeks, 0 writeouts
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] FFmpeg exited with code: 1 and signal: null (Error)
[9.4.2021, 18:55:40] [Camera FFmpeg] [Garage] Stopped video stream.
```

**Homebridge Config:**

```json
                    "name": "Garage",
                    "unbridge": true,
                    "videoConfig": {
                        "source": "-i rtsp://user:passwort@myIP:554/live/ch00_1",
                        "audio": true,
                        "maxWidth": 640,
                        "maxHeight": 360,
                        "maxFPS": 20,
                        "vcodec": "h264",
                        "debug": true
                    }
```

**Screenshots:**
![IMG_0270](https://user-images.githubusercontent.com/38372908/114216508-49933f00-9967-11eb-9f0a-db6199b42308.png)
![IMG_0271](https://user-images.githubusercontent.com/38372908/114216539-51eb7a00-9967-11eb-9822-d9c1b9b7e832.png)
![IMG_0272](https://user-images.githubusercontent.com/38372908/114216546-557f0100-9967-11eb-961d-3b09db69169a.png)


**Environment:**

* **Node.js Version**: v15.2.1
* **NPM Version**: v7.0.8
* **Homebridge Version**: v1.3.4
* **Homebridge Camera FFmpeg Version**: v3.1.2
* **Homebridge Config UI X Plugin Version**:v4.41.0
* **Operating System**: Raspbian


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