![]() ![]() ![]() I'm using the latest ffmpeg build for windows. Take video, for example, the factor that determines the video file size include resolution, frame rate, bitrate, and coding scheme. The same exact thing happens when trying to add the cover with Mp3tag or MKVToolNix. This issue doesn't seem to happen when i add a cover to an MP3 or OGG file, as the reported bitrate is the exact same with and without cover for those containers. Now, both MediaInfo and foobar2000 are reporting 456 kbps for the bitrate, a value that obviously is not correct as the provided Opus doesn't reach that. mka (same exact source file):įfmpeg -i original.opus -acodec copy -attach cover.png -map 0 -metadata:s:t:0 mimetype=image/png -metadata:s:t:0 filename=cover.png output+cover.mka The problem comes when attaching a cover to the. When I check the resulting file with MediaInfo and foobar2000, the reported average bitrate is 141 kbps, which is accurate to the opus sound file. mka without any attachments using the following ffmpeg command:įfmpeg -i original.opus -acodec copy output.mka To demonstrate it, I'm first making a simple. If you don't touch it, the target video files will be approximately as large as the source ones with unnecesarily large video bitrate. I'm trying to make an audio-only Matroska file, but keep having an issue in regard to the reported bitrate of the archive. If your input video is in a format far less storage-effective than H.264, you'll definitely want to overwrite it and supply a meaningful target bitrate. ![]()
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