The synchronization of audio with the video is disturbed, thereby, hindering the video-watching experience. It can simply be said that when playing a video, the audio either runs ahead of the video or it might run behind the video. AV synchronization can be an issue in TV, videoconferencing, or film. Sound to-video synchronization (AV synchronization, otherwise called lip-sync, or by its absence: lip-sync blunder, lip fold) alludes to the overall planning of sound and video parts during creation, after creation (blending), transmission, gathering, and play-back handling. Common Audio and Video Out of Sync Issues Setlocal enableDelayedExpansion >nul 2>&1įor /f "tokens=*" %%g in ('"ffmpeg -i input.For macOS 10.11 or later Part 1. It probably only works if you only have 1 video stream in the file, you'll have to alter it if there are more. ::OPTIONAL: Gets individual x and y resolutions if you want thatįor /f "tokens=1 delims=x" %%x in ("%videoRes%") do set "xRes=%%x"įor /f "tokens=2 delims=x" %%y in ("%videoRes%") do set "yRes=%%y"įFMPEG-only solution for windows batch. ::Gets resolutionįor /f "tokens=*" %%g in ('"ffprobe.exe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 "input.mp4""') do (set videoRes=%%g) Use this instead of the FFMPEG-only method, because that's parsing input meant for humans and it broke on me. XML $ ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of xml input.mp4Įdit: FFPROBE solution for windows batch.
JSON $ ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of json input.mp4 With no key: $ ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of default=nw=1:nk=1 input.mp4ĬSV $ ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=p=0 input.mp4 With no wrapper: $ ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of default=nw=1 input.mp4 Also see FFprobe Tips for other examples including duration and frame rate.
See -of option documentation for more choices and options.
Use ffprobe $ ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 input.mp4Įxamples of other output formatting choices
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