[FFmpeg-user] Problems playing mjpeg stream at different bitrates
fabian.kurt at tomtom-tools.com
Mon Sep 17 14:46:59 EEST 2018
> Do the streams really work with other players?
Yes, we tested our application for several months with a built-in VLC player and it worked well.
VLC needs several attempts to start playing the stream but then it works fine.
I noticed that FFplay has less delay than VLC. This was the reason to change.
Von: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] Im Auftrag von Carl Eugen Hoyos
Gesendet: Montag, 17. September 2018 12:54
An: FFmpeg user questions <ffmpeg-user at ffmpeg.org>
Betreff: Re: [FFmpeg-user] Problems playing mjpeg stream at different bitrates
2018-09-17 11:30 GMT+02:00, Fabian Kurt <fabian.kurt at tomtom-tools.com>:
> FFPlay is often not able to decode the stream. If we configure higher
> bitrates of the camera output, FFplay is more often able to decode it
> but not always. At lower bitrates <6Mbit/s it's mostly impossible to decode.
> The main error occurring is: "No JPEG data found in image".
This may not be the only problem but afaict the COM marker has a stored length that is always longer than the whole image.
Not sure how this can be reliably detected in a mjpeg stream / FFmpeg does read the single images if you extract them.
Do the streams really work with other players?
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