Results 1 to 5 of 5

Thread: video players with timeline preview // QtAV-player playback isn't smooth

  1. #1
    Join Date
    Apr 2016
    Location
    North America
    Posts
    537

    Default video players with timeline preview // QtAV-player playback isn't smooth

    I'm looking for video players that show a preview when you move the mouse cursor over the timeline.

    I just tried both of the QtAV-player versions, but the playback is a bit jerky (not smooth).

  2. #2
    Join Date
    Sep 2008
    Posts
    2,997

    Default Re: video players with timeline preview // QtAV-player playback isn't smooth

    I haven't used QtAV it seams to only support various hardware acceleration
    https://github.com/wang-bin/QtAV
    https://github.com/wang-bin/QtAV/wik...rated-Decoding
    if you're using an intel (or newer amd) graphic card try running
    Code:
    QMLPlayer -vd "vaapi;FFmpeg" filename
    on nvidia chips with the nvidia propitiatory driver try
    Code:
    QMLPlayer -vd "CUDA;FFmpeg" filename

  3. #3
    Join Date
    Apr 2016
    Location
    North America
    Posts
    537

    Default Re: video players with timeline preview // QtAV-player playback isn't smooth

    Thanks!

    I do have a nvidia gtx 750;
    however, when using the CUDA setting, the screen is blank. >_<

  4. #4
    Join Date
    Sep 2008
    Posts
    2,997

    Default Re: video players with timeline preview // QtAV-player playback isn't smooth

    more info is needed
    what driver are you using noveau has no video acceleration support you must use nvidia's propitiatory driver (G04 on 750)
    keep in mind not all video codecs are supported by your graphic card run vdpauinfo to see what your card supports
    Code:
    vdpauinfo
    you can use mediainfo to see what codec your video uses and if it's supported by your hardware
    Code:
    zypper in mediainfo 
    mediainfo your_file.mkv
    afaik the 750 does not have h265 and vp9 hardware support if you're playing a x265 video you can only use software decoding
    if you are trying to play a h264 video with cuda with the propitiatory nvidia drivers report an issue at the developers page
    https://github.com/wang-bin/QtAV/issues

    ps. there's an nvidia repo for TW users so if you don't have the nvidia driver get it from there
    Code:
    zypper ar -f http://http.download.nvidia.com/opensuse/tumbleweed/ nvidia
    zypper inr
    should install the appropriate driver (well only the G04 driver is available for TW)

  5. #5
    Join Date
    Apr 2016
    Location
    North America
    Posts
    537

    Default Re: video players with timeline preview // QtAV-player playback isn't smooth

    I'm using 384.111 from the nvidia website.

    vdpauinfo:

    Code:
    Decoder capabilities:
    
    
    name                        level macbs width height
    ----------------------------------------------------
    MPEG1                           0 65536  4080  4080
    MPEG2_SIMPLE                    3 65536  4080  4080
    MPEG2_MAIN                      3 65536  4080  4080
    H264_BASELINE                  41 65536  4096  4096
    H264_MAIN                      41 65536  4096  4096
    H264_HIGH                      41 65536  4096  4096
    VC1_SIMPLE                      1  8190  2048  2048
    VC1_MAIN                        2  8190  2048  2048
    VC1_ADVANCED                    4  8190  2048  2048
    MPEG4_PART2_SP                  3  8192  2048  2048
    MPEG4_PART2_ASP                 5  8192  2048  2048
    DIVX4_QMOBILE                   0  8192  2048  2048
    DIVX4_MOBILE                    0  8192  2048  2048
    DIVX4_HOME_THEATER              0  8192  2048  2048
    DIVX4_HD_1080P                  0  8192  2048  2048
    DIVX5_QMOBILE                   0  8192  2048  2048
    DIVX5_MOBILE                    0  8192  2048  2048
    DIVX5_HOME_THEATER              0  8192  2048  2048
    DIVX5_HD_1080P                  0  8192  2048  2048
    H264_CONSTRAINED_BASELINE      41 65536  4096  4096
    H264_EXTENDED                  41 65536  4096  4096
    H264_PROGRESSIVE_HIGH          41 65536  4096  4096
    H264_CONSTRAINED_HIGH          41 65536  4096  4096
    H264_HIGH_444_PREDICTIVE       41 65536  4096  4096
    HEVC_MAIN                      --- not supported ---
    HEVC_MAIN_10                   --- not supported ---
    HEVC_MAIN_STILL                --- not supported ---
    HEVC_MAIN_12                   --- not supported ---
    HEVC_MAIN_444                  --- not supported ---
    The video I was testing with is a .webm using VP9.

    Thanks for the information! It was very educational.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •