[FFmpeg-user] Verify integrity of a video file?

I want to verify (on Win 7) the integrity of a video file (e.g. *.avi or *.mp4 or *.mkv) Therefore I enter according to some suggestions: ffmpeg -i videofile.avi -f null - This seems to work. However a lot of "normal" stuff is outputted as well. I only want an output message in case of error.

[FFmpeg-user] Can I run TWO ffmpeg processes in parallel?

Can I run TWO ffmpeg encoding or verification processes in parallel on the same computer? Or do they interfere each other because they e.g use the same temporary files or caches or internal config files or .? ___ ffmpeg-user mailing list

[FFmpeg-user] expression in drawtext / text

Hi, I'm making a timelapse video from many JPG pictures, and I'd like to use drawtext to print the time in each picture. Let's assume the pictures were taken with 5 seconds interval. The following command works almost as expected and prints the seconds modulo 60: text=%%{e\:mod(5*n,60)}

Re: [FFmpeg-user] expression in drawtext / text

I have solved the problem myself. Only question 3 remains: Is it possible to use the time from the exif data of the JPG pictures? My solution is below. set "FONTFILE=courbd.ttf" set "COLOR=white" set "BOXCOLOR=black" set "SIZE=30" set "POSITION_X=0" set "POSITION_Y=(h-th)" set "S=72060"

[FFmpeg-user] Live WebM Streaming

I'm converting a live stream (-i rtmp) into libvpx-vp9 output to -webm_chunk. This looks like it's working perfectly (minus a few must have future features i.e. auto delete chunks / segments). Next we generate the webm dash manifest (webm_dash_manifest), where we pull the header generated in the

[FFmpeg-user] rtsp_option issue

Hello guys, I've some issues on a FFMPEG command related to the rtsp_transport option. The command is the following: *.\ffmpeg.exe -i "rtsp://[camera_endpoint]" -c:v libx264 -b:v 150k -maxrate 150k -s 320x240 -threads 0 -profile:v baseline -preset:v ultrafast -vf format=yuv420p -tune zerolatency

[FFmpeg-user] Best way to store continuous recordings embedded linux

olaH, We have a security system that records continuous audio and video and are trying to figure out the best way to store the video. Right now we are recording 15 minute segments as separate recordings and it works OK but that was just a wild guess. Our requirements are: Near lossless

[FFmpeg-user] define BER length

Hi all, I have a mxf- File and now I want to unwrap it. When I try it I get the error : Fill item short read: 356. Unsupported MXF Operational Pattern. Program stopped on error. The file format is not proper OP-Atom/AS-DCP. So I tried to convert it with ffmpeg -i input.mxf -vcodec copy -pix_fmt

Re: [FFmpeg-user] tiff to yuv

Hi Moritz, yes I have. If I use -colorspace YUV I get the same image, just with different colors. -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/tiff-to-yuv-tp4672993p4673018.html Sent from the FFmpeg-users mailing list archive at Nabble.com.