noobiso.blogg.se - Ffmpeg windows screen capture

#Ffmpeg windows screen capture how to#
#Ffmpeg windows screen capture mp4#
#Ffmpeg windows screen capture 64 Bit#
#Ffmpeg windows screen capture windows#

Copy all files from Redist»LAV»x86(圆4), COM-register all.

#Ffmpeg windows screen capture windows#

Copy all files from the Redist✿FMPEG folder, add this folder to the Windows system PATH variable.ax file, add environment variable VLC_PLUGIN_PATH, specify the value as VLC»plugins folder Copy all files from Redist»VLC folder, COM-register (using regsvr32.exe or any other way).

#Ffmpeg windows screen capture mp4#

filters for MP4 legacy/modern except muxer.

Copy VisioForge_DXP.dll / VisioForge_DXP64.dll.

VisioForge_MF_Mux.ax / VisioForge_MF_Mux_圆4.ax.

Copy VisioForge_MFT.dll / VisioForge_MFT64.dll.

To sum up, I've (probably) found 1 bug in ffmpeg and 1 bug in ffmpeg's wiki. Which contains -ac 2 probably in the right place. Neither could I get this to work using: FFmpeg/ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0+0,0 -f alsa -ac 2 -i pulse -acodec copy output.mpeg Stream #1:0 -> #0:1 (pcm_s16le (native) -> adpcm_swf (native))Įrror while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height Stream #0:1: Audio: adpcm_swf, 0 channels The error message I'm getting is: Output #0, flv, to 'output.flv': I couldn't get it to work without -acodec aac -strict experimental, contrary to the HOWTO on ffmpeg wiki. This line works: FFmpeg/ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0+0,0 -f alsa -ac 2 -i pulse -acodec aac -strict experimental output.flv The solution seems to be to use both a different video and audio encoder.

if it's a regression, which revision to build from.

fixing my mistakes in the command line flags.

Screen capture requires a larger buffer than normal.

#Ffmpeg windows screen capture how to#

If anybody can tell me how to get this to work by either: Here is an example command for Windows screen capture with OBS: ffmpeg -f dshow -rtbufsize 500M -i video'UScreenCapture' -c:v h264nvenc -vf crop2560:1440:0:0,scale1280:720 test.mkv Running through:-rtbufsize 500M is allowing 500MB of space for FFmpeg's real-time buffer. Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg1video (native)) Like DVD, VCD or others, make sure you set the correct buffer size If you want the mpeg file to be compliant to some specification VBV buffer size not set, using default size of 130KB Stream #1:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/sįile 'output.mpeg' already exists.

#Ffmpeg windows screen capture 64 Bit#

Guessed Channel Layout for Input Stream #1.0 : stereoĭuration: N/A, start: 1428348285.225901, bitrate: 1536 kb/s ffmpeg example (requires ffmpeg 32 bit - 64 bit is available upon request): ffplay -f dshow -i video'screen-capture-recorder' or ffmpeg -f dshow -i video'screen-capture-recorder' -r 20 -t 10 screen-capture. Trailing options were found on the commandline.ĭuration: N/A, start: 1428348285.201679, bitrate: N/A This is despite ffmpeg claims to record the audio with 2 channels, here is the input: ffmpeg version N-71312-ga66dcfe Copyright (c) 2000-2015 the FFmpeg developersīuilt with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-7) The position of -ac 2 doesn't change the behaviour, nor does repeating it only once. I'm getting a video with 0 audio channels, which I can check running FFmpeg/ffplay output.mpeg Input #0, mpeg, from 'output.mpeg':ĭuration: 00:00:09.44, start: 0.540000, bitrate: 2743 kb/s However, when I try both screen capture and audio, like this: FFmpeg/ffmpeg -video_size 800圆00 -framerate 25 -ac 2 -f x11grab -i :0.0+0,0 -ac 2 -f alsa -i pulse -ac 2 -acodec copy output.mpeg -ac 2 I am able to record audio perfectly fine with the command: FFmpeg/ffmpeg -f alsa -ac 2 -i pulse - output.wav

I am using ffmpeg built from source at this revision in Fedora 20.