[FFmpeg-user] ffmpeg-user@ffmpeg.org
Hi, I am trying to avoid downloading entire file when generating a thumbnail at certain time ffmpeg -v debug fflags fastseek+igndts -y -http_proxy http://localhost: -i http://devimages.apple.com/iphone/samples/bipbop/gear1/fileSequence3.ts -ss 0 -vframes 1 -async 1 -vcodec png -an thumb.png I want to make a server side service that creates thumbnails, but I want the server to avoid downloading anything than minimum required, even if the ts file is 263 kb, I want to avoid downloading it completely.Apparently this person had success Extracting Thumbnails Faster with FFmpeg - Wistia EngineeringBut I am unable, ffmpeg still downloads the entire file. From what I see, ffmpeg is issuing 3 requests here 1. Content range 0 to end 2. Content range 13012 to 263011 3. Content range 0 to 263011 I don't understand why they are 3 and what is going on. Can this be optimized somehow ? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Virtual camera
I don't think ffmpeg itself can register a source filter for DirectShow. Have a look on this project though CatxFish/obs-virtual-cam | | | | | | | | | | | CatxFish/obs-virtual-cam obs-studio plugin to simulate a directshow webcam. Contribute to CatxFish/obs-virtual-cam development by creatin... | | | On Thursday, July 9, 2020, 02:38:53 PM GMT+2, Simon Brown wrote: I was wondering if there is any way to use FFmpeg to create a virtual camera for a PC/Mac from an H264 stream source. I know FFmpeg can use directshow as an input device. Thanks, Simon ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
