libmp4v2 confusion

fanaticlatic · 13th July 2012, 09:47

Hello all,

I hope you can clarify some confusion I have with libmp4v2.

Is the library purely for altering the mp4 file format, track listings etc or does it allow encoding and decoding of video files like dirac, webm, x264 etc?

The download/info page for libmp4v2 is http://code.google.com/p/mp4v2/

I have not been able to find any examples using libmp4v2 to encode or decode a video stream, if anyone knows of any please post the link.

Thanks in advance,

Hinchy

LoRd_MuldeR · 14th July 2012, 12:35

AFAIK, libmp4v2 is a library for (de)multiplexing MP4 (MPEG-4 Part 14) files.

While various video formats may be stored in an MP4 container (such as MPEG-4 ASP or MPEG-4 AVC aka H.264), libmp4v2 does not provide any video encoding or decoding functions by itself.

x264, for example, can encode video to the AVC/H.264 format and it is able to output the result in an MP4 container right away...

fanaticlatic · 16th July 2012, 13:38

Brilliant thanks for confirming that Lord_Mulder.

Have an ASCII beer on me:

http://www.ascii-art.de/ascii/ab/beer.txt

13th July 2012, 09:47	#1 \| Link
fanaticlatic Registered User Join Date: Jul 2011 Posts: 4	libmp4v2 confusion Hello all, I hope you can clarify some confusion I have with libmp4v2. Is the library purely for altering the mp4 file format, track listings etc or does it allow encoding and decoding of video files like dirac, webm, x264 etc? The download/info page for libmp4v2 is http://code.google.com/p/mp4v2/ I have not been able to find any examples using libmp4v2 to encode or decode a video stream, if anyone knows of any please post the link. Thanks in advance, Hinchy __________________ I have more fingers in more pies than a leper at a bakery -- Gene Hunt - Life on Mars.

14th July 2012, 12:35	#2 \| Link
LoRd_MuldeR Software Developer Join Date: Jun 2005 Location: Last House on Slunk Street Posts: 13,246	AFAIK, libmp4v2 is a library for (de)multiplexing MP4 (MPEG-4 Part 14) files. While various video formats may be stored in an MP4 container (such as MPEG-4 ASP or MPEG-4 AVC aka H.264), libmp4v2 does not provide any video encoding or decoding functions by itself. x264, for example, can encode video to the AVC/H.264 format and it is able to output the result in an MP4 container right away... __________________ Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊

16th July 2012, 13:38	#3 \| Link
fanaticlatic Registered User Join Date: Jul 2011 Posts: 4	Brilliant thanks for confirming that Lord_Mulder. Have an ASCII beer on me: http://www.ascii-art.de/ascii/ab/beer.txt __________________ I have more fingers in more pies than a leper at a bakery -- Gene Hunt - Life on Mars. Last edited by fanaticlatic; 16th July 2012 at 13:39. Reason: ascii beer became ascii puddle

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