Please test this 5.1 HE-AAC streams

[dimzon]

http://sr2.mytempdir.com/176359

What's wrong with them, why they are not playable?
Can anyone analyze this bitstreams (does they compatible with AAC specification)
:thanks:

[buzzqw]

i can only report what fooplayer say "Maximum number of scalefactor bands exceeded"
neither nero showtime play these files
dunno what this means :confused:

BHH

[SeeMoreDigital]

What method did you use to create both files?

And did you really mux the your .AAC stream/file into the MP4 (M4A) container, or did you just re-name the file extension?


Cheers

[planet1]

The files are definitely not playable.

mplayer errors

__51.m4a.aac:

FAAD: Failed to decode frame: Invalid number of channels
FAAD: error: Maximum number of scalefactor bands exceeded, trying to resync!
FAAD: error: Unexpected channel configuration change, trying to resync!


__51.m4a:

FAAD: Failed to decode frame: Gain control not yet implemented
FAAD: Failed to decode frame: Maximum number of scalefactor bands exceeded
FAAD: Failed to decode frame: Maximum number of scalefactor bands exceeded
FAAD: Failed to decode frame: Unexpected channel configuration change


mp4box info (__51.m4a)

* Movie Info *
Timescale 600 - Duration 00:00:19.966
Fragmented File no - 1 track(s)
File Brand 3gp6 - version 0

File has root IOD
Scene PL 0xff - Graphics PL 0xff - OD PL 0xff
Visual PL: No visual capability required (0xff)
Audio PL: High Efficiency AAC Profile @ Level 2 (0x2c)
No streams included in root OD

Track # 1 Info - TrackID 1 - TimeScale 48000 - Duration 00:00:19.968
Media Info: Language "und" - Type "soun" - Sub Type "mp4a" - 468 samples
MPEG-4 Config: Audio Stream - ObjectTypeIndication 0x40
MPEG-4 Audio SBR - 6 Channel(s) - SampleRate 24000 - SBR SampleRate 48000
Self-synchronized

Btw remuxing (mp4/mkw) wont help either ....

[dimzon]

What method did you use to create both files?
This is my modification of 3GPP reference encoder (i'm working on 5.1 encoding now)


And did you really mux the your .AAC stream/file into the MP4 (M4A) container
Yes!



FAAD: Failed to decode frame: Gain control not yet implemented
FAAD: Failed to decode frame: Maximum number of scalefactor bands exceeded
FAAD: Failed to decode frame: Maximum number of scalefactor bands exceeded
FAAD: Failed to decode frame: Unexpected channel configuration change
Thanx! Seems like I must read AAC Specs again :devil: