ffmpeg and -strict experimental

[Primefalcon]

I am trying to convert a video to mp4 using ffmpeg

and I get the following message

encoder 'aac' is experimental and might produce bad results.
Add '-strict experimental' if you want to use it.

however when I do the following

ffmpeg -strict experimental -i video.mpeg -same_quant video.mp4

all I get is this

Unrecognized option 'strict experimental'
Failed to set value '-i' for option 'strict experimental'

I am using 12.10 and I never had this issue with previous versions of Ubuntu.....

[FakeOutdoorsman]

I am trying to convert a video to mp4 using ffmpeg

Note that the mp4 container supports several video formats. The default encoder for mp4 used by ffmpeg will change depending on your version and configuration, either "mpeg4" for MPEG-4 Part 2 video or "libx264" for H.264 video.

and I get the following message

encoder 'aac' is experimental and might produce bad results.
Add '-strict experimental' if you want to use it.

That message should be updated for two reasons. The native FFmpeg AAC encoder, "aac", isn't great at low bitrates, but it is arguably better than vo-aacenc at "normal" bitrates of 128k and up. Secondly, it should mention that "-strict experimental" is an output option and should be moved after "-i video.mpeg".

however when I do the following

ffmpeg -strict experimental -i video.mpeg -same_quant video.mp4

all I get is this

Unrecognized option 'strict experimental'
Failed to set value '-i' for option 'strict experimental'

Don't use -same_quant (alias for -sameq). It has been removed upstream (in FFmpeg). See Why was the ffmpeg ‘-sameq’ option removed? What to use instead? and sameq does not mean "same quality". See the FFmpeg and x264 Encoding Guide for detailed examples on how to get a good quality output.

[Primefalcon]

Note that the mp4 container supports several video formats. The default encoder for mp4 used by ffmpeg will change depending on your version and configuration, either "mpeg4" for MPEG-4 Part 2 video or "libx264" for H.264 video.



That message should be updated for two reasons. The native FFmpeg AAC encoder, "aac", isn't great at low bitrates, but it is arguably better than vo-aacenc at "normal" bitrates of 128k and up. Secondly, it should mention that "-strict experimental" is an output option and should be moved after "-i video.mpeg".



Don't use -same_quant (alias for -sameq). It has been removed upstream (in FFmpeg). See Why was the ffmpeg ‘-sameq’ option removed? What to use instead? and sameq does not mean "same quality". See the FFmpeg and x264 Encoding Guide for detailed examples on how to get a good quality output.

Got it working thanks, and yeah I know about sameq and same_quant whether your using the avconv or ffmpeg commands, in avconv man page it tells you that it doesn't equal same quality but I just didn't feel like entering all the bit rates and such