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bluenviron / mediamtx

Ready-to-use SRT / WebRTC / RTSP / RTMP / LL-HLS media server and media proxy that allows to read, publish, proxy, record and playback video and audio streams.
MIT License
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Edges Cut Off #3588

Closed 4noxx closed 1 month ago

4noxx commented 3 months ago

Which version are you using?

latest

Which operating system are you using?

Describe the issue

Description

Describe how to replicate the issue

  1. start the server
  2. publish with ...
  3. read with ...

Did you attach the server logs?

yes / no

Did you attach a network dump?

yes / no

image

4noxx commented 3 months ago

the left and the right side of my video is since today black. yesterday works fine, i had fullscreen. today that

i added -vf scale ..... but no success

i use a USB cam -> Viewsonic VB-CAM-001

SUPPORTED VIDEO FORMAT Color System Compression: YUY2 / H.264 / MJPEG Max. Resolution Video: 1080p@30fps/25fps, 720p@30fps/25fps, 960x540p@30fps/25fps, 640x360p@30fps/25fps

4noxx commented 3 months ago

Camera works good under windows.

Log from my PI5:

sudo service mediamtx status ● mediamtx.service Loaded: loaded (/etc/systemd/system/mediamtx.service; enabled; preset: enabled) Active: active (running) since Tue 2024-07-30 21:25:10 CEST; 1min 11s ago Main PID: 3913 (mediamtx) Tasks: 23 (limit: 9252) CPU: 11.453s CGroup: /system.slice/mediamtx.service ├─3913 /usr/local/bin/mediamtx /usr/local/etc/mediamtx.yml └─3920 ffmpeg -f v4l2 -i /dev/video0 -pix_fmt yuv420p -preset ultrafast -b:v 600k -f rtsp rtsp://localhost:8554/cam

Jul 30 21:25:11 pi5 mediamtx[3920]: encoder : Lavf59.27.100 Jul 30 21:25:11 pi5 mediamtx[3920]: Stream #0:0: Video: mpeg4, yuv420p(tv, progressive), 640x480, q=2-31, 600 kb/s, 30 fps, 90k tbn Jul 30 21:25:11 pi5 mediamtx[3920]: Metadata: Jul 30 21:25:11 pi5 mediamtx[3920]: encoder : Lavc59.37.100 mpeg4 Jul 30 21:25:11 pi5 mediamtx[3920]: Side data: Jul 30 21:25:11 pi5 mediamtx[3920]: cpb: bitrate max/min/avg: 0/0/600000 buffer size: 0 vbv_delay: N/A Jul 30 21:25:19 pi5 mediamtx[3920]: [1.4K blob data] Jul 30 21:25:19 pi5 mediamtx[3913]: 2024/07/30 21:25:19 INF [RTSP] [conn 192.168.1.41:64065] opened Jul 30 21:25:19 pi5 mediamtx[3913]: 2024/07/30 21:25:19 INF [RTSP] [session d2ddac1b] created by 192.168.1.41:64065 Jul 30 21:25:19 pi5 mediamtx[3913]: 2024/07/30 21:25:19 INF [RTSP] [session d2ddac1b] is reading from path 'cam', with UDP, 1 track (MPEG-4 Video) ralf@pi5:~ $ ls Bookshelf Desktop Documents Downloads LICENSE mediamtx_v1.8.4_linux_arm64v8.tar.gz Music Pictures Public Templates Videos ralf@pi5:~ $ v4l2-ctl --list-formats-ext ioctl: VIDIOC_ENUM_FMT Type: Video Capture

    [0]: 'MJPG' (Motion-JPEG, compressed)
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                    Interval: Discrete 0.200s (5.000 fps)
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                    Interval: Discrete 0.200s (5.000 fps)
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    [1]: 'YUYV' (YUYV 4:2:2)
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aler9 commented 1 month ago

This is unrelated from MediaMTX since it's FFmpeg that is responsible for reading and encoding the camera feed. In particular, from the logs it seems to me that FFmpeg is picking the wrong V4L format:

Jul 30 21:25:11 pi5 mediamtx[3920]: Stream #0:0: Video: mpeg4, yuv420p(tv, progressive), 640x480, q=2-31, 600 kb/s, 30 fps, 90k tbn

You can pick the right V4L format by using input_format and video_size:

ffmpeg -f video4linux2 -input_format h264 -video_size 1920x1080 -framerate 30 -i /dev/video0 -pix_fmt yuv420p -preset ultrafast -b:v 600k -f rtsp rtsp://localhost:8554/cam