[gst-devel] how to use gst-launch for playing yuv video files without any header?

[Edgard Lima]

yep

gst-launch-0.10 filesrc location=test.yuv ! videoparse format=YUY2
width=240 height=120 framerate=30/1 ! xvimagesink

works fine

THX Sebastian

ext Edgard Lima wrote:
> 
> 
> gst-launch-0.10 -v videotestsrc num-buffers=120 ! video/x-raw-yuv,
> width=64, height=32 ! filesink location=test.yuv
> 
> # 64 and 32 to make the buffer size 4094
> 
> gst-launch-0.10 filesrc location=test.yuv ! video/x-raw-yuv,
> format=\(fourcc\)YUY2, width=64, height=32, framerate=\(fraction\)30/1 !
> xvimagesink
> 
> # if the size is not 4094
> 
> gst-launch-0.10 -v videotestsrc num-buffers=120 ! video/x-raw-yuv,
> width=240, height=120 ! fakesink -v
> 
> # then look at the size on bytes of each buffer and try like this
> 
> gst-launch-0.10 filesrc location=test.yuv blocksize=57600  !
> video/x-raw-yuv, format=\(fourcc\)YUY2, width=240, height=120,
> framerate=\(fraction\)30/1 ! xvimagesink
> 
> # after all you also need an element (I think there is no such element
> in GStreamer) to look at framerate in caps and set correct timestamps to
> the buffers (or do it in your app pad-has-data)
> 
> BR,
> Edgard
> 
> 
> ext Nikhil Raveendranathan wrote:
>> Hi,
>>
>> This is what I had used:
>> gst-launch filesrc location=test.yuv ! xvimagesink
>>
>> And in the program that I wrote, I linked filesrc, capsfilter and
>> xvimagesink. Setting caps of capsfilter according to the properties of the
>> yuv video file.
>>
>> Can you mention the gst-launch command that you had used for the same?
>>
>> Regards,
>> Nikhil
>>
>> -----Original Message-----
>> From: Felipe Contreras [mailto:felipe.contreras at gmail.com] 
>> Sent: Monday, January 14, 2008 8:18 PM
>> To: Nikhil Raveendranathan
>> Cc: gstreamer-devel at lists.sourceforge.net
>> Subject: Re: [gst-devel] how to use gst-launch for playing yuv video files
>> without any header?
>>
>> On Jan 14, 2008 4:32 PM, Nikhil Raveendranathan
>> <Nikhil_Raveendranathan at mindtree.com> wrote:
>>>
>>>
>>> Hi,
>>>
>>> I tried using gst-launch for playing yuv (I420) files in the following way:
>>>
>>>  gst-launch filesrc location=test.yuv ! xvimagesink
>>>
>>>
>>>
>>> Since I couldn't play the file, I also tried out a program with elements
>>> filesrc, capsfilter and xvimagesink, setting caps with values for format,
>>> framerate, width, height and aspect-ratio. I could see that the caps was
>>> getting set for capsfilter element, and also upon checking out the
>>> negotiated caps for xvimagesink, I could find that the same caps (as for
>>> capsfilter) are getting set after caps negotiation. Now the file was
>> getting
>>> played, but I was only seeing some greenish images instead of the original
>>> video.
>>>
>>>
>>>
>>> Has anyone tried this out before? Does anyone know why this is so?
>> Yes, I've done that.
>>
>> What is the actual gst-launch command you tried to run?
>>
>>> Regards,
>>>
>>> Nikhil Raveendranathan| Engineer, R & D Services| MindTree Consulting Ltd.
>>> |West Campus, Phase-2, Global Village, RVCE Post, Mysore Road,
>> Bangalore-560
>>> 059, INDIA |Voice +91 80 26264000 Extn: 66760 / Fax +91 80 26264100 | Mob :
>>> 9886044872 | email: nikhil_raveendranathan at mindtree.com|www.mindtree.com |
>>>
>>>
>>>
>>>
>>>
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