This rules out using a specialty video app which supports H.265 encoding. I frequently use the handy “double tap power button” shortcut to quickly launch my camera app, so it is important that the app which launches is able to handle both photos and videos. 1 There are some third-party apps such as UltraCorder which support H.265, but I’d prefer to stick with the stock camera app. It typically requires 50% less bitrate (and hence storage space) to achieve the same level of quality as H.264.

The storage savings from HEVC are pretty astounding. Even though the phone has a decent amount of storage (64GB) it quickly fills up if you record a lot of video. A minute of 1080p video takes up ~150MB of storage, and double that for 60fps mode or 4K. String deviceName = 'video=GENERAL WEBCAM' įfmpeg.avformat_open_input(&pFormatContext, deviceName, ffmpeg.av_find_input_format('dshow'), null) įor both variants of device names, I get an error: No such file or directory.įfmpeg -video_size 1280x720 -framerate 30 -f dshow -i video='GENERAL WEBCAM':audio='Microphone (3- GENERAL WEBCAM)' -c:v libx264 -crf 30 -preset ultrafast ffmpegvideo.Despite being a relatively modern phone, my OnePlus 6T records video using the H.264 codec rather than the newer H.265 HEVC codec. This is how I'm trying to get the video: string deviceName = 'GENERAL WEBCAM' Now I want to use this function for USB video device.įFmpeg outputs this device name: ffmpeg -list_devices true -f dshow -i dummy I used the ffmpeg-function (from library FFmpeg.AutoGen) to show video from rtsp-stream:įfmpeg.avformat_open_input(&pFormatContext, 'rtsp://127.0.0.1:8554/abc', iformat, null) This question was migrated from Super User because it can be answered on Stack Overflow.

Ffmpeg compress mp4