I am in charge of verifying the gst-ffmpeg G722 codecs meet the ITU
requirements for a project I am working on. From the following link it states
in the Detailed Description that the G.722 ADPCM audio codec passes the ITU
tests.
http://ffmpeg.org/doxygen/trunk/g722_8c.html#_details
Not that I don't trust the web but I also like to learn how things were done. I
have been using the test vectors from the ITU website and trying to run their
Digital test sequences (Appendix II from the recommendation) to verify the
codec. I've posted several emails to the ITU website asking for clarification
on how these test are run because the comparison files they provide are the
same size as the source files. Correct me if I am wrong but shouldn't the
resulting file be smaller than the source file after passing through the
encoder and larger for passing through the decoder?
Seeing how the ffmpeg.org website from above claims to have passed all the ITU
websites I would like to know how these tests were done so I can prove this out
for my management.
Brent Giles
Electrical Engineer
Sorenson Communications Inc
4192 Riverboat Road
Salt Lake City, Utah 84123
P: (801) 287-9442
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