[FFmpeg-devel] aac variable encoding
Dominik 'Rathann' Mierzejewski
dominik at greysector.net
Fri Mar 22 12:26:57 EET 2019
On Thursday, 21 March 2019 at 19:38, Yufei He wrote:
> Hi
>
> On transcoding from 1080p .ts files to .mp4 files with my m264 codec,
> audio of the output .mp4 files stutters.
>
> We found audio of the stuttering files is vbr.
>
> I did not set aac encoding bitrate. somehow it becomes vbr when I use my
> m264 codec on transcoding 1080p files.
>
> It works well for 1080i .ts files and all .mp4 and .mov files, and aac
> audio of the output files is cbr.
>
> So the problem is why aac encoding becomes vbr.
>
> Command I use is:
>
> ./ffmpeg -i TS/TSv2m2641080p30mcbr.tsĀ -vsync 0 -vcodec m264 -b:v 10M
> 8_ff.mp4
THis is not a question related to development of FFmpeg but a question
about FFmpeg usage, therefore it belongs to the ffmpeg-user mailing
list: https://lists.ffmpeg.org/mailman/listinfo/ffmpeg-user/
Please post such questions there in the future as they're off-topic
here.
Regards,
Dominik
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