AAC-HE

[Madoka]

Recently there was a commit that separated aac into aac and aac-he. However, in the past my mp4s that had aac-he audio streamed ok, with normal audio and sound (not that I had many of the files). Now, UMS wants to transcode/mux those over to my PS3. Here is the mediainfo for one of the files that work ok. Maybe it's the fault of the encoder of the file?

Code: Select all

General
Format                         : MPEG-4
Format profile                 : Base Media
Codec ID                       : isom
File size                      : 900 MiB
Duration                       : 25mn 30s
Overall bit rate mode          : Variable
Overall bit rate               : 4 934 Kbps
Encoded date                   : UTC 2013-03-27 06:09:31
Tagged date                    : UTC 2013-03-27 06:09:31

Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : [email protected]
Format settings, CABAC         : Yes
Format settings, ReFrames      : 5 frames
Codec ID                       : avc1
Codec ID/Info                  : Advanced Video Coding
Duration                       : 25mn 30s
Bit rate                       : 4 803 Kbps
Maximum bit rate               : 8 303 Kbps
Width                          : 1 280 pixels
Height                         : 720 pixels
Display aspect ratio           : 16:9
Frame rate mode                : Constant
Frame rate                     : 29.970 fps
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 0.174
Stream size                    : 876 MiB (97%)
Title                          : 264#trackID=1:[email protected]
Writing library                : x264 core 129 r2245 bc13772
Encoding settings              : cabac=1 / ref=5 / deblock=1:-2:-1 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=360 / keyint_min=35 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=19.7 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=6500 / vbv_bufsize=4500 / crf_max=0.0 / nal_hrd=none / ip_ratio=1.40 / aq=1:1.00
Encoded date                   : UTC 2013-03-28 04:19:03
Tagged date                    : UTC 2013-03-27 06:10:36

Audio
ID                             : 2
Format                         : AAC
Format/Info                    : Advanced Audio Codec
Format profile                 : HE-AAC / LC
Codec ID                       : 40
Duration                       : 25mn 30s
Bit rate mode                  : Variable
Bit rate                       : 127 Kbps
Maximum bit rate               : 140 Kbps
Channel count                  : 2 channels
Channel positions              : Front: L R
Sampling rate                  : 48.0 KHz / 24.0 KHz
Compression mode               : Lossy
Stream size                    : 23.3 MiB (3%)
Encoded date                   : UTC 2013-03-27 06:09:32
Tagged date                    : UTC 2013-03-27 06:10:36

[DeFlanko]

Can you post up a full debug log in TRACE for the Dev's to look at please.

[Madoka]

Here you go. The file is called aac-he.mp4. It's muxed over now that SJ fixed that, but streamed ok with 3.1.2.1.

[SubJunk]

Unfortunately it's safer for us to transcode HE-AAC instead of mux it. It may work muxed in some cases but in the videos I tested, the PS3 didn't support the audio track when it was HE-AAC. So in this case the program is doing what it's supposed to do.
We do need to find that bug where the option for streaming files via transcode folder disappeared though so you have the option

[Madoka]

Thanks, SJ, for the info!