Currently I'm working on multimedia player for now we've chosen a Colibri imx6DL module. A whole application is written in Qt and use QtMultimedia module to play video, everything works fine on my computer, but when i switch to module i encounter performance issues with playing wideo (frame drops etc). I've also tried with bare gstreamer (gst-play-1.0), performance was better but still with small issues. When playing with bare gstreamer i've got a warning:
[WARN] VPU iram is less than needed, some parts don't use iram
Should I concern about this warning, or is there any solution for this?
Some more details:
video file: codec h264 container mp4 resolution 1920x1080 output resolution: 1920x1080M60,bpp32 (in u-boot) tested on standard Linux Image 2.6, and also poky (branch master) evalboard: iris
The main question is: is Colibri imx6dl capable to play such video in good performance and it is only a some problem with configuration or gstreamer, or should i choose another hardware?
Thanks for help.
Colibri iMX6DL V1.0A
Answer by tomasz3dk · Mar 20 at 08:50 AM
It took a long time, but i didn't notice that there was an answer. Some more details: - yes 32 bpp is required - u-boot reports 512MB of ram - top command reports: KiB Mem : 509624 total, 325860 free, 117496 used, 66268 buff/cache (idyle state)
mediainfo 01_llama_drama_1080p.mp4 General Complete name : 01_llama_drama_1080p.mp4 Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 (isom/mp42) File size : 33.5 MiB Duration : 1 min 30 s Overall bit rate mode : Variable Overall bit rate : 3 120 kb/s Encoded date : UTC 2013-02-08 18:56:45 Tagged date : UTC 2013-02-08 18:56:45 gsst : 0 gstd : 90138 gssd : B4A7DD186HH1360442686067895 gshh : r6---sn-5hn7su76.c.youtube.com Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4 Format settings, CABAC : Yes Format settings, ReFrames : 1 frame Format settings, GOP : M=1, N=48 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 1 min 30 s Bit rate : 2 926 kb/s Maximum bit rate : 9 201 kb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 24.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.059 Stream size : 31.4 MiB (94%) Encoded date : UTC 1970-01-01 00:00:00 Tagged date : UTC 2013-02-08 18:56:47 Audio ID : 2 Format : AAC Format/Info : Advanced Audio Codec Format profile : LC Codec ID : 40 Duration : 1 min 30 s Bit rate mode : Variable Bit rate : 192 kb/s Maximum bit rate : 201 kb/s Channel(s) : 2 channels Channel positions : Front: L R Sampling rate : 44.1 kHz Frame rate : 43.066 FPS (1024 spf) Compression mode : Lossy Stream size : 2.06 MiB (6%) Title : IsoMedia File Produced by Google, 5-11-2011 Encoded date : UTC 2013-02-08 18:56:46 Tagged date : UTC 2013-02-08 18:56:47
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