Thank you very much. Could you tell how I would be able to link x264 encoder for H264 and not v4l4m2m. To invoke x264 encoder with the source code.
Thanks in advance, Kind Regards, Adhuran Sent from my Samsung Galaxy S9 - Powered by Three Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: Richard Hussong <[email protected]> Sent: Tuesday, October 8, 2019 6:46:26 PM To: This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter. <[email protected]> Cc: Adhuran, Jayasingam (PG/R - Elec Electronic Eng) <[email protected]> Subject: Re: [Libav-user] Request for Help - Error - h264_v4l2m2m @ 0x114ac00] Could not find a valid device You need a V4L2 video device to use that encoder. If you haven't already done this, run "ls -l /dev/video*", and make sure there is a video device and you have permission to write to it. If that doesn't help, you should raise the logging level of libav and see if it tells you what went wrong. - Richard On Tue, Oct 8, 2019 at 1:22 PM Adhuran Adhuran via Libav-user <[email protected]<mailto:[email protected]>> wrote: Dear All, I am trying to use ffmpeg source code top encode video streams in linux. I used the code provided in this link https://ffmpeg.org/doxygen/3.2/muxing_8c_source.html<https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fffmpeg.org%2Fdoxygen%2F3.2%2Fmuxing_8c_source.html&data=02%7C01%7Cj.adhuran%40surrey.ac.uk%7Cfeef03bf3fab4441db5208d74c17790f%7C6b902693107440aa9e21d89446a2ebb5%7C0%7C1%7C637061536017908633&sdata=DXwBLSqQMwhbyFnInOE%2F%2BYZ1TWzhIZhlNX2ZYKtG2rc%3D&reserved=0> to encode videos. I got an error, when the code accessed the function ret = avcodec_open2<https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fffmpeg.org%2Fdoxygen%2F3.2%2Fgroup__lavc__core.html%23ga11f785a188d7d9df71621001465b0f1d&data=02%7C01%7Cj.adhuran%40surrey.ac.uk%7Cfeef03bf3fab4441db5208d74c17790f%7C6b902693107440aa9e21d89446a2ebb5%7C0%7C1%7C637061536017918630&sdata=hg0RqdJRa23310y5JSb8LXNAlfmbxtAKkSYSEh4iKVg%3D&reserved=0>(c, codec, &opt); [h264_v4l2m2m @ 0x114ac00] Could not find a valid device [h264_v4l2m2m @ 0x114ac00] can't configure encoder May I know, why I get this error and how I could solve this? Regards, Adhuran. _______________________________________________ Libav-user mailing list [email protected]<mailto:[email protected]> https://ffmpeg.org/mailman/listinfo/libav-user<https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fffmpeg.org%2Fmailman%2Flistinfo%2Flibav-user&data=02%7C01%7Cj.adhuran%40surrey.ac.uk%7Cfeef03bf3fab4441db5208d74c17790f%7C6b902693107440aa9e21d89446a2ebb5%7C0%7C1%7C637061536017923627&sdata=saYOSH3RwykbXKztNxIS%2BKkXcvMhkMe5pCh5x%2BkmtMU%3D&reserved=0> To unsubscribe, visit link above, or email [email protected]<mailto:[email protected]> with subject "unsubscribe".
_______________________________________________ Libav-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/libav-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
