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#7747 (Crackling noises in audio on iPod) – FFmpeg
https://trac.ffmpeg.org/ticket/7747
Some converted audio and video files get sporadic cracking noises during playback on an iPod Nano 3rd generation. It can happen dozens of times during 30 minutes. Some times 3 times per second, some times 20 seconds apart. There is no clear pattern. Enclosed is a small excerpt that includes: An original input file The output file from FFmpeg
ffmpeg - Encode video for ipod classic - Stack Overflow
https://stackoverflow.com/questions/23260944/encode-video-for-ipod-classic
ffmpeg -i in.mp4 -vcodec libx264 -crf 23 -preset fast -profile:v baseline \ -level 3 -refs 6 -vf "scale=640:-1,pad=iw:480:0:(oh-ih)/2,format=yuv420p" \ -acodec copy output.mp4 Control quality with -crf and encoding speed with -preset. See the FFmpeg and x264 Encoding Guide for more info on those options.
#2099 (FFMPEG Does not allow TrueHD, DTS-Master …
https://ffmpeg.org/trac/ffmpeg/ticket/2099
if you can make some samples that play in quicktime or the ipod with those codecs, we will add it to ffmpeg. we dont want ffmpeg to create non-standard files that only playback with ffmpeg. if we add a patch without using the proper hex code or isom tag, then it wont work in official hardware/software either. so we'd like to see a working sample , so we can copy our …
Converting Video Files for iPod/iPhone/iPad - SysTutorials
https://www.systutorials.com/converting-video-files-for-ipod-iphone-ipad/
# ffmpeg -i input.wmv -s 480x320 -b 1000k -strict -2 output.mp4-s sets the frame size of the video. -b sets the bitrate of the video. Convert video file format with ffmpeg for iPod/iPhone/iPad in one command. More conveniently, we can form this command to a script convert2mp4.sh: #!/bin/bash ffmpeg -i $1 -s 480x320 -b 1000k -strict -2 /tmp/$1.mp4
FFmpeg Codecs Documentation
https://ffmpeg.org/ffmpeg-codecs.html
Use ffmpeg to convert an audio file to VBR AAC in an M4A (MP4) container: ffmpeg -i input.wav -codec:a libfdk_aac -vbr 3 output.m4a Use ffmpeg to convert an audio file to CBR 64k kbps AAC, using the High-Efficiency AAC profile:
FFmpeg
Converting video and audio has never been so easy. $ ffmpeg -i input.mp4 output.avi. Discover more News January 17th, 2022, FFmpeg 5.0 "Lorentz" FFmpeg 5.0 "Lorentz", a new major release, is now available! For this long-overdue release, a major effort underwent to remove the old encode/decode APIs and replace them with an N:M-based API, the ...
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