![]() ![]() wav still.īut in the many cases of my MP4 with AC3 where I DON'T have to edit them, I AM able to import via nicac3source(), saving a conversion step.įrom what I understand of MP4 muxer vs MP4v2 muxer, I think I should stay with MP4 muxer. ![]() As I really needed to do this edit, I did "copy/convert" instead of "copy/copy" and made the output AAC (Faac). But got hit by the "does not support AC3 in MP4" bomb. I did not anticipate I would need to gop-edit the MP4/ac3 files with AviDemux, but an occasion arose today requiring that. With great effort (and discussion with customer support), I was able to change it's output to be AC3 vs AAC, again for reason stated above. I'm also creating other H.264/MP4 files with Replay Video Capture 8. I chose to set up Replay Converter to ouput AC3 simply so I could avoid having to convert it to. (The Replay Converter encodes really well with almost no quality loss.) MP4 (H.264) so I can use DGDecodeNV with them, as well as free up tons of space from bulky Mpeg2. Lately I've had many Mpeg2 files and I use Replay Converter to reencode to. ac3, then I can directly use nicAc3source() nicely. wav and import it with wavsource(), as I know of no import tool for. dgi file (with DGSource), which supplies the video stream to the script. In my Avisynth script I open the resultant. When I'm feeding my M2TS transport stream file to it (which perhaps might NOT be a real M2TS, but might be a TS with M2TS extension, according to another thread here), DGIndexNV detects the audio stream and demuxes it. I suppose I should reveal what was driving me to do this. ![]() If you don't want to create a batchfile to do this with FFMPEG, there are commercial packages that offer this: So unless there is some other playback benefit, it's not worthwhile. However, there is an additional loss in audio quality from trans-coding from AAC to AC-3. The converted versions of these files played back OK in MPC-BE and appeared to be in sync. But I can't see any reason why TCmullet can not use it in an MP4 for his own use.įfmpeg -i testfile.avi -c:v copy -c:a ac3 -ac 2 -ar 48000 -ab 192k "H264 with AC3.MP4" A hardware media player that claims to play "MP4" files may not be able to handle it. MP4 allows the inclusion of an AC3 stream, but its usage isn't common. I thought the content was independent of what container I use. ![]()
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