10/29/2023 0 Comments Ffmpeg mjpegI know this because when printing each chunk length, results most of the time in a big value (X), but every now and then I get 2 consecutive chunks with length (2/5X) followed by (3/5X) for example. thus, displaying them in a row in the browser, results in a flickering video, with half-complete frames, on a random basis. However, I'm facing a problem- not all data chunks represent a full 'whole' frame. Technically, I'm using ffmpeg to convert the incoming stream to an MJPEG output, and piping the data chunks (from the ffmpeg process stdout) to a writeable stream on the client http response. Now I'm stumped.I'm working with ffmpeg to process an incoming MPEGTS stream from remote cameras, and deliver it to multiple clients using my app. Gets me (a lot of) unable to decode APP fields: Invalid data found when processing input Further information is available in the libvpx API documentation. To get more documentation of the libvpx options, invoke the command ffmpeg -h encoderlibvpx, ffmpeg -h encoderlibvpx-vp9 or vpxenc -help. I obviously would prefer a higher frame rate, but using ffmpeg -f video4linux2 -s 1280x960 -framerate 30 -input_format mjpeg -i /dev/video0 -c:v h264_omx -threads 0 -an -f flv rtmp:///app/live_*snip* For the documentation of the undocumented generic options, see the Codec Options chapter. Which nets me the expected framerate of 7.5 fps ( The driver changed the time per frame from 1/30 to 2/15). Right now I'm streaming with ffmpeg -f video4linux2 -s 1280x960 -framerate 30 -input_format yuyv422 -i /dev/video0 -c:v h264_omx -threads 0 -an -f flv rtmp:///app/live_*snip* but YUYV isn't even great at 800圆00 with 20 fps. So MJPG will be good in 1280x960 with 30 fps. I'm trying to stream the contents of my webcam (a Logitech C270) to twitch, using ffmpeg on a raspberry pi 4 with four gigabytes of RAM.Īccording to v4l2 ( v4l2-ctl -d /dev/video0 -list-formats-ext), my webcam supports the following modes: ioctl: VIDIOC_ENUM_FMT
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