Stuttering only with AVC files

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Stuttering only with AVC files

Postby lemmy » Tue Jun 30, 2009 5:16 am

Intel Core 2 Duo 6300 @ 1.86GHz
2GB Ram
Server version 1.10.51
Server computer - wired - router - wireless - PS3

I have installed the server software and I am trying to get some files to play on the PS3. I have left all default settings and just added the directory where my movie files are. One is a .mov file and on the PS3 it looks like it is being transcoded to mpeg-2 and it plays fine. I also have a mpeg2 file that plays great. I then have three Xvid files that are shown as DivX on the PS3 and they play fine. But I have one file that is H.264/Mpeg-4 AVC 688x384. It correctly shows up as AVC on the PS3 and is not being transcoded. However it is stuttering very badly. It is only about 1500kb/s and plays fine on the computer. I have had a similar experience with Tversity with AVC files. Any suggestions?

Also, under "Transcoder Settings - Video File Engines" PMS shows AviSynth/FFmpeg and Avisynth/MEncoder as "this engine is not loaded". Is that a problem? Thanks.
lemmy
 
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Re: Stuttering only with AVC files

Postby meskibob » Tue Jun 30, 2009 7:41 am

Specify a Maximum Bandwidth of 15mbps (for wireless) and adjust from there, and you may also need to decrease the Video Quality setting. Both are under the Common Transcode settings.
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Re: Stuttering only with AVC files

Postby lemmy » Tue Jun 30, 2009 2:17 pm

Its not a bandwidth problem. The file is only 1.5mbps and I am successfully streaming 11.5mbps files from an ISO from the server with no stutters at all. It is just the H.264/Mpeg-4 AVC and bitrate makes no difference. I had the same problem with Tversity. If I put the file on a USB drive and plug it in the PS3 it plays fine.
lemmy
 
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Re: Stuttering only with AVC files

Postby meskibob » Tue Jun 30, 2009 6:38 pm

Post the debug.log after trying to play the file (log will need to be zipped to attach) and the MediaInfo for the file.
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Re: Stuttering only with AVC files

Postby lemmy » Wed Jul 01, 2009 12:18 am

I hope this helps. Thanks.

Code: Select all
General
Complete name                    : K:\VIDEO\MGP2009\Round_06_Catalunya\MotoGP.2009.Round06.Spain.Catalunya.Race.BBC2.x264.mp4
Format                           : MPEG-4
Format profile                   : Base Media
Codec ID                         : isom
File size                        : 1.04 GiB
Duration                         : 1h 26mn
Overall bit rate                 : 1 726 Kbps
Encoded date                     : UTC 2009-06-13 13:51:23
Tagged date                      : UTC 2009-06-13 13:51:23

Video
ID                               : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : High@L4.1
Format settings, CABAC           : Yes
Format settings, ReFrames        : 3 frames
Codec ID                         : avc1
Codec ID/Info                    : Advanced Video Coding
Duration                         : 1h 26mn
Bit rate mode                    : Variable
Bit rate                         : 1 593 Kbps
Maximum bit rate                 : 3 269 Kbps
Width                            : 688 pixels
Height                           : 384 pixels
Display aspect ratio             : 16/9
Frame rate mode                  : Constant
Frame rate                       : 25.000 fps
Resolution                       : 24 bits
Colorimetry                      : 4:2:0
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.241
Stream size                      : 983 MiB (92%)
Writing library                  : x264 core 67 r1165M 6841c5e
Encoding settings                : cabac=1 / ref=3 / deblock=1:-1:-1 / analyse=0x3:0x113 / me=umh / subme=7 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=20 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=2 / deadzone=21,10 / chroma_qp_offset=-2 / threads=4 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=crf / crf=21.0 / qcomp=0.50 / qpmin=10 / qpmax=51 / qpstep=4 / vbv_maxrate=24000 / vbv_bufsize=24000 / ip_ratio=1.30 / pb_ratio=1.20 / aq=1:0.70 / cabac=1 / ref=3 / deblock=1:-1:-1 / analyse=0x3:0x113 / me=umh / subme=7 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=20 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=2 / deadzone=21,10 / chroma_qp_offset=-2 / threads=4 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=crf / crf=21.0 / qcomp=0.50 / qpmin=10 / qpmax=51 / qpstep=4 / vbv_maxrate=24000 / vbv_bufsize=24000 / ip_ratio=1.30 / pb_ratio=1.20 / aq=1:0.70
Encoded date                     : UTC 2009-06-13 13:09:48
Tagged date                      : UTC 2009-06-13 13:52:14

Audio
ID                               : 2
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format version                   : Version 4
Format profile                   : LC
Format settings, SBR             : No
Codec ID                         : 40
Duration                         : 1h 26mn
Bit rate mode                    : Variable
Bit rate                         : 129 Kbps
Maximum bit rate                 : 141 Kbps
Channel(s)                       : 2 channels
Channel positions                : L R
Sampling rate                    : 48.0 KHz
Resolution                       : 16 bits
Stream size                      : 79.6 MiB (7%)
Encoded date                     : UTC 2009-06-13 13:52:10
Tagged date                      : UTC 2009-06-13 13:52:14

Attachments
debug.zip
(42.3 KiB) Downloaded 40 times
lemmy
 
Posts: 35
Joined: Tue Jun 30, 2009 5:14 am

Re: Stuttering only with AVC files

Postby lemmy » Wed Jul 01, 2009 4:41 am

One other thing. When I navigate to the video on the PS3, it is listed as a MPEG-4 file and when I play it and click "display" on the ps3, the audio is shown as AAC and the video is shown as AVC. When I go in to the #--TRANSCODE--# directory there are two files shown:


filename.mp4[MEncoder]* (this one shows a proper thumbnail)
and
MEncoder{Audio:AAC/Undetermined}* (this one just has a white circle for a thumbnail)

with both shown as MPEG-2

When I play either of them, they play fine and and the Audio is shown as Dolby Digital 2 Ch. 48khz and the video is still shown as AVC. So is the audio just being transcoded to AC3 and the video is not being transcoded at all? I thought when things were being transcoded the video was always converted to MPEG2?
lemmy
 
Posts: 35
Joined: Tue Jun 30, 2009 5:14 am

Re: Stuttering only with AVC files

Postby ExSport » Wed Jul 01, 2009 9:08 am

Why video is not transcoded:
Switch to tsMuxeR when H264 video is PS3 compatible and there's no configured subs [TS/M2T/MOV/MP4/AVI/MKV] is enabled ;)
ExSport
 
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Re: Stuttering only with AVC files

Postby lemmy » Wed Jul 01, 2009 4:24 pm

Ok, that makes sense I guess, but I thought when I selected the "#--TRANSCODED--# directory everything would get transcoded regardless of any settings. So then why do I get stuttering when nothing is transcoded? Is the AAC audio causing the problem since that is the only thing that has changed in the #--TRANSCODED--# directory and it plays fine.
lemmy
 
Posts: 35
Joined: Tue Jun 30, 2009 5:14 am

Re: Stuttering only with AVC files

Postby relayer35 » Wed Jul 01, 2009 9:50 pm

I don't know if this helps or not, but I've had issues with a wireless PS3 streaming MP4 files with AVC video and AAC audio. However, if I have no problems with MKV through tsMuxer with AC3 or DTS audio that are of a much higher bitrate than the AVC/AAC files. There appears to be a bug with the PS3 wireless buffering or something with MP4 files. When I tried to force tsMuxer, the a/v sync became way off. When I force Mencoder, they play okay, but the video is jerky. I wound up simply copying the few files I have like that directly to the PS3 and they played fine.
relayer35
 
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Re: Stuttering only with AVC files

Postby lemmy » Thu Jul 02, 2009 2:32 am

Thanks for your reply. That would make sense why I am having problems with Tversity and PS3MS....its a PS3 issue and not a server issue.
lemmy
 
Posts: 35
Joined: Tue Jun 30, 2009 5:14 am


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