2013-07-10, 14:22
Hello,
I found an encoding that looks like is not well supported in xbmc or raspberry, using raspbmc.
I own some tvshows encoded in a really compressed setting, in each of these episodes, the audio jitters, hiccups and makes a lot of strange digital noises during playback, the files reside on a synology NAS, nfs exported, if I mount them on my linux laptop and play using mplayer or vlc, the files playback without a problem, with a good audio quality (at least without hiccups! ^_^).
The raspberry has both VC-1 and mpg2 codecs bought and installed.
Video plays perfectly.
Here I'm attaching the xbmc.log in debug mode during playback,the mediainfo of the file and a sample file (splitted the first minute).
Is there a way to understand why it playbacks audio like that? Could be workarounded or fixed?
A big thank you for the answer and let me know if I could be of any help. ^_^
-------------MOD EDIT: REMOVED LOG SPAM ----------------
Sample file: https://docs.google.com/file/d/0BzOZ0GC2...sp=sharing
I found an encoding that looks like is not well supported in xbmc or raspberry, using raspbmc.
I own some tvshows encoded in a really compressed setting, in each of these episodes, the audio jitters, hiccups and makes a lot of strange digital noises during playback, the files reside on a synology NAS, nfs exported, if I mount them on my linux laptop and play using mplayer or vlc, the files playback without a problem, with a good audio quality (at least without hiccups! ^_^).
The raspberry has both VC-1 and mpg2 codecs bought and installed.
Video plays perfectly.
Here I'm attaching the xbmc.log in debug mode during playback,the mediainfo of the file and a sample file (splitted the first minute).
Is there a way to understand why it playbacks audio like that? Could be workarounded or fixed?
A big thank you for the answer and let me know if I could be of any help. ^_^
-------------MOD EDIT: REMOVED LOG SPAM ----------------
Code:
$ mediainfo Cyborg009.1x01.mp4
General
Complete name : Cyborg009.1x01.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 87.0 MiB
Duration : 23mn 22s
Overall bit rate mode : Variable
Overall bit rate : 520 Kbps
Movie name : 01
Encoded date : UTC 2013-07-04 02:54:13
Tagged date : UTC 2013-07-04 03:05:09
Writing application : HandBrake rev0 2013051899
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 23mn 22s
Bit rate mode : Variable
Bit rate : 452 Kbps
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.059
Stream size : 75.6 MiB (87%)
Writing library : x264 core 130 r2273 b3065e6
Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=2 / psy=1 / psy_rd=1,00:0,00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=6 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=2pass / mbtree=1 / bitrate=452 / ratetol=1,0 / qcomp=0,60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20,0 / qblur=0,5 / ip_ratio=1,40 / aq=1:1,00
Encoded date : UTC 2013-07-04 02:54:13
Tagged date : UTC 2013-07-04 03:05:09
Color primaries : BT.601 PAL
Transfer characteristics : BT.709
Matrix coefficients : BT.601
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 23mn 22s
Bit rate mode : Variable
Bit rate : 63.9 Kbps
Maximum bit rate : 120 Kbps
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 KHz
Compression mode : Lossy
Delay relative to video : 80ms
Stream size : 10.7 MiB (12%)
Encoded date : UTC 2013-07-04 02:54:13
Tagged date : UTC 2013-07-04 03:05:09Code:
$ ffmpeg -acodec copy -vcodec copy -ss 00:00:00 -t 00:01:00 -i Cyborg009.1x01.mp4 sample.mp4
WARNING: gnome-keyring:: couldn't connect to: /home/gabrieletassoni/.cache/keyring-vCNAye/pkcs11: No such file or directory
ffmpeg version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
built on Mar 30 2013 22:20:06 with gcc 4.7.2
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Cyborg009.1x01.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
creation_time : 2013-07-04 02:54:13
title : 01
encoder : HandBrake rev0 2013051899
Duration: 00:23:22.88, start: 0.000000, bitrate: 520 kb/s
Stream #0.0(und): Video: h264 (Main), yuv420p, 640x480 [PAR 1:1 DAR 4:3], 451 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Metadata:
creation_time : 2013-07-04 02:54:13
Stream #0.1(und): Audio: aac, 48000 Hz, mono, s16, 63 kb/s
Metadata:
creation_time : 2013-07-04 02:54:13
Output #0, mp4, to 'sample.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
creation_time : 2013-07-04 02:54:13
title : 01
encoder : Lavf53.21.1
Stream #0.0(und): Video: ![0][0][0] / 0x0021, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 451 kb/s, 25 tbn, 25 tbc
Metadata:
creation_time : 2013-07-04 02:54:13
Stream #0.1(und): Audio: aac, 48000 Hz, mono, 63 kb/s
Metadata:
creation_time : 2013-07-04 02:54:13
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press ctrl-c to stop encoding
frame= 1499 fps=487 q=-1.0 Lsize= 4724kB time=59.88 bitrate= 646.2kbits/s
video:4210kB audio:469kB global headers:0kB muxing overhead 0.955674%Sample file: https://docs.google.com/file/d/0BzOZ0GC2...sp=sharing
