Changes between Version 10 and Version 11 of Ticket #4433, comment 1


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Timestamp:
Apr 7, 2015, 3:41:05 PM (12 years ago)
Author:
zamar27

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  • Ticket #4433, comment 1

    v10 v11  
    11This may have in part similar cause with bug #4201 ''Error Application provided invalid, non monotonically increasing dts to muxer Logitech C920''. Adding -copyts flag, when -c copy stream to file and preview, results in sdl window open and immediately closed without any outcome written or previewed.
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    3 More about CPU load. At 1280x720 SDL preview window its 20% just rendering with mjpeg or raw source stream, even without decoding & encoding or writing to file. At 640x360 window and fps 15 its 12% with FFMpeg & SDL compare to 0.01% for same preview size at fps 15 shown by Logitech LWS2.80 software. VirtualDub gives close CPU load results to Logitech 2.80. I wonder, if high CPU usage for SDL rendering is related to the same bug? Or what? In all described cases GPU hardware acceleration wasn't used.
     3Correction: the error is only present, when A:V or V output is transcoded in any way. But -c copy to sdl preview produces no error.
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     7More about CPU load. At 1280x720 SDL -c copy preview ffmpeg CPU usage is 20% just rendering source. At 640x360 fps 15 sdl window its 12% with FFMpeg & SDL compare to 0.01% for same preview by Logitech LWS2.80 software or VirtualDub. Is that a bug?