media player doesn't play all .avi movies smooth

Hi all,

I have some movies on my TimeCapsule, I have afp access to these movies with the mediaplayer of aTVflash. My black aTV is connected to my TimeCapsule with an EthernetCable.

The Problem is, that mediaplayer doesn’t play my HQ movies smoothly. The video is choppy, it stutters noticable. It’s more like picture after picture than a real movie. Audio is ok.

Is this a problem of media player or is the cpu of my aTV just not strong enough for HQ movies? Rented HQ/HD movies from iTunes play perfectly.

Here are the specs of one of these movies:

Format                                   : AVI

Format/Info                              : Audio Video Interleave

Format profile                           : OpenDML

File size                                : 2.05 GiB

Duration                                 : 2h 40mn

Overall bit rate                         : 1 827 Kbps

Writing application                      : Lavf52.102.0

 

Video

ID                                       : 0

Format                                   : AVC

Format/Info                              : Advanced Video Codec

Format profile                           : Main@L3.0

Format settings, CABAC                   : Yes

Format settings, ReFrames                : 3 frames

Codec ID                                 : H264

Duration                                 : 2h 40mn

Bit rate                                 : 879 Kbps

Width                                    : 720 pixels

Height                                   : 576 pixels

Display aspect ratio                     : 16:9

Frame rate mode                          : Variable

Frame rate                               : 25.000 fps

Standard                                 : PAL

Color space                              : YUV

Chroma subsampling                       : 4:2:0

Bit depth                                : 8 bits

Scan type                                : Progressive

Bits/(Pixel*Frame)                       : 0.085

Stream size                              : 1 012 MiB (48%)

Writing library                          : x264 core 114

Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x1:0x111 / me=umh / subme=5 / psy=1 / psy_rd=0.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=2 / weightb=0 / open_gop=0 / weightp=0 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc=cqp / mbtree=0 / qp=22 / ip_ratio=1.41 / pb_ratio=1.25 / aq=0

 

Audio

ID                                       : 1

Format                                   : MPEG Audio

Format version                           : Version 1

Format profile                           : Layer 3

Mode                                     : Joint stereo

Mode extension                           : MS Stereo

Codec ID                                 : 55

Codec ID/Hint                            : MP3

Duration                                 : 2h 40mn

Bit rate mode                            : Constant

Bit rate                                 : 192 Kbps

Channel(s)                               : 2 channels

Sampling rate                            : 48.0 KHz

Compression mode                         : Lossy

Stream size                              : 4.08 MiB (0%)

Alignment                                : Aligned on interleaves

Interleave, duration                     : 632 ms (15.80 video frames)

 

thank you very much for your help.

 

best wishes

 

Markus

Unfortunately HD AVI files don’t currently get along very well with the AppleTV. If you were to take the same movie in a MP4 or MKV container it would work great.

It’s something we’re planning to see if we can resolve, but that’s all the info that we have for now.

Could it be that media player does not support a frame rate of 25.000 fps very well? I have the same kind of problem and it seems to be related to the frame rate.

 

/Philip