I am trying to render a composition as H.264 in After Effects and Media Encoder, but despite i am using the same settings for both, one of them is being exported as a "mp4" file, the other one is being exported as a "m4v" file. What am i doing wrong?
(After Effects exports it as .mp4, Media Encoder exports it as .m4v)
My guess is that one of the option settings is causing the switch. I did find that if you change the Multiplexer option to "None" rather than the default of "MP4", the result will be an M4V output (the option is found on the video format button, multiplexer tab).
I don't claim to be an expert on all of the differences between an m4v and mp4 but what what I have seen an mp4 file always has the audio multiplexed and an m4v does not.
If this is not the cause, would you post all of your settings so we can try to duplicate and locate the source.
Yes, i thought the same thing at first so i checked but the multiplexer was set to "mp4". Here are the settings i used in Encoder:
Video tab settings:
Export Video: Enabled
Export Audio: Disabled
Frame rate: 23,976
Field order: Progressive
Aspect: Square (1.0)
Tv Standard: NTSC
Render at Maximum Depth: Enabled
Bitrate encoding: CBR
Target Bitrate: 10 mbps
Keyframe Distance: 72
Use Maximum Render Quality: Enabled
Use Previews: Disabled
Use Frame Blending: Disabled
Multiplexer tab settings:
Stream Compatibility: Standard
I am getting a mp4 file (as i intended) when i use these settings at After Effects. But when i use Media Encoder with the same settings somehow it gives me a m4v. Here is a screenshot of the summary section in the Media Encoder's export settings window:
The file seems to have a ".mp4" extension. But once i render, it ends up being ".m4v".
Ok, by watching the output of the ME render process for an mp4 file it is clear that ME is firat creating an h.264 blu-ray file set ( which is a m4v and acc file ) and once the video and audio files are rendered it will combine the files to a single mp4 in the final step. In your case you are disabling the audio file so the process has nothing to merge so it just leaves the m4v file.
I used you settings and only got an m4v file but once I enabled the audio output I got an mp4 file.