#Mp4 to mpeg 2 portable#
Storing MPEG2 files will not be a problem on DVDs, as the usual DVD capacity is over 4GB, but is a major issue with portable devices. This is a far cry from MPEG2, which can only produce files with five times the size.
#Mp4 to mpeg 2 full#
MPEG4 is the preferred format for devices, as it yields a file that is under 1G for most full length movies. Portable devices, like media players and mobile phones, use this format, as well as online stores who provide the hiring of video and audio files. MPEG4 was developed much later, as an encoding method for devices with limited resources. MPEG2 is the standard that was created to encode high quality videos, meant to be used for the, then emerging, DVD media. If MuxMan has no problems with the streams then you can be almost 100% sure that everything is compliant.The Moving Pictures Experts Group, or MPEG, is the body responsible for the standards that we often use for video encoding. To verify that your streams are really DVD compliant, my method of choice is to demux the MPEG2 file and author the elementary streams with MuxMan. This does not convert a progressive source to interlaced, it just forces interlaced motion estimation and DCT plus the alternate scan order, and it sets the correct field order flag. flags +ilme+ildct -alternate_scan 1 -top 0 flags +ilme+ildct -alternate_scan 1 -top 1 To encode in interlaced mode you need to add the following parameters: (Your script provides the possibility to convert to NTSC, and for an NTSC DVD it is not compliant to just have a single MP2 audio track) I would also recommend to use AC3 instead of MP2. Your audio sample rate of 44100 is not DVD compliant, you need to use 48000. Seems awfully low, I remember reading comments where a constant quantizer of 2 was recommended. Well, I am not an ffmpeg specialist, but since nobody has answered for 3 days, I do have some remarks: REM else do a preserve-aspect-ratio scale and pad REM do a straight 16:9 conversion to %width%x%height% "c:\software\mediainfo\mediainfo.exe" -Inform=Video %%AspectRatio/String%% "%~1" > ".\mi.txt"
#Mp4 to mpeg 2 how to#
I could easily do it and a lot of other things in avisynth, but I'm not sure how to open an. Are there any ffmpeg filters you would recommend to, say, sharpen and maybe denoise a bit ?
(I will try to burn them tomorrow and see what happens)
I have not specified interlacing so is that going to be an issue ? If so, I guess I'll have to find the switches to convert it to TFF interlaced I'm not sure the output files are fully PAL DVD compatible.
#Mp4 to mpeg 2 code#
The ffmpeg settings were "borrowed" from googling (I originally used -target pal-dvd however that over-rode some of the other ffmpeg settings so I had to desist and code the equivalent ffmpeg switches manually after finding out what they were). bat file (code below) produces mpeg2 files. Seeking a bit of advice on an ffmpeg commandline to downscale/upscale/bar-ize/convert a bunch of generally low-res arbitrary-sized old mp4's (free stuff) into mpeg2 files for burning to a PAL DVD, for an elderly relative's DVD player.
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