[gst-devel] problems when playing video files with

[Stefan Kost]

Joyious He schrieb:
>  Hi all,
> 
> Now I'm going to test the video display on my target arm borad.it use
> the directfb as the display layer.and I got problems below:
> 
> 
> 1:The videotestsrc work well for that dfb-example,but when i just get
> the command line "gst-launch -v videotestsrc ! dfbvideosink", it threw
> out some err msg: "format can not negotiate".

gst-launch -v videotestsrc ! ffmpegcolorspace ! dfbvideosink

> 
> 2:Then I put the videotestsrc away, try to play some AVI files.but when
> I try the application or the command line like : " gst-launch -v filesrc
> location=/convertavi ! avidemux name=demux demux.video_00 ! queue !
> decodebin ! ffmpegcolorspace ! videoscale ! dfbvideosink". Iwas told the
> pipeline was pause. I check the debug message.I got the reason:

filesrc location=/convertavi ! decodebin name=demux demux.video_00 ! queue !
decodebin ! ffmpegcolorspace ! videoscale ! dfbvideosink

> 
> "0:00:01.613967000 [332m 1633[00m 0x1af80 [32;01mINFO [00m [00;01;34m
> GST_EVENT gstpad.c:4242:gst_pad_send_event:<mpeg2dec0:sink>[00m Received
> event on flushing pad. Discarding
> 0:00:01.614717000 [332m 1633[00m 0x1af80 [32;01mINFO [00m [00;01;34m
> GST_EVENT gstpad.c:4242:gst_pad_send_event:<mpeg2dec0:sink>[00m Received
> event on flushing pad. Discarding
> 0:00:01.616135000 [332m 1633[00m 0x1af80 [32;01mINFO [00m [00;01;34m
> GST_EVENT gstpad.c:4242:gst_pad_send_event:<mpeg2dec0:sink>[00m Received
> event on flushing pad. Discarding
> 0:00:01.617260000 [332m 1633[00m 0x1af80 [33;01mWARN [00m [00m avidemux
> gstavidemux.c:3548:gst_avi_demux_loop:[00m stream_movi flow: wrong-state
> / ok"
> 
> 3:I also tried another way. I convert a AVI file into a raw data as a
> temp file, and use filesrc and dfbvideo sink to play :"gst-launch -v
> filesrc location=/convert2 blocksize=65536 ! dfbvideosink". Some thing
> is coming out, but its not the correct video.I think it's probably the
> frame format mismatching. the temp file is using YV12(I convert it using
> mplayer and its default value is YUV YV12) and my directfb is using
> RGB32. So how can i specify the caps convert, changing the format of
> mplayer default or specify it in the gstreamer commad line? I tried the
> ffmpegcolorspace like "gst-launch -v filesrc location=/convert2
> blocksize=65536 ! ffmpegcolorspace ! dfbvideosink" and I was told the
> format can not negotiated.
> 
> Could you all give me any ideas about all the problems above ?
>

Do I get a free device when it gets released :)

Stefan

> 
> Thanks very much.
> 
> Best Regard
> Joyious
>  
>  
>  
> 
> 
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