[gst-devel] tested successfully by using gst-launch but didn't work by using playbin2

[Stefan Kost]

xujh schrieb:
> 
> 
> xujh wrote:
>> I am working on playing avi file in Android using gstreamer which has been
>> ported into Android with the help of 
>> http://groups.google.com.tw/group/prajnashi
>> http://groups.google.com.tw/group/prajnashi 
>>
>> Android don't support avi playing so i want to do it myself using
>> gstreamer.
>>
>> Now it can play well using gst-launch under command line .
>> But when i try to use laybin2 to do this job it failed. I have set
>> properties "video-sink" and "audio-sink" of playbin2.
>> I find that playbin2 found plugins avidemuxer and decoder successfully and
>> stoped unexpectedly .
>> The last error messages are as follows:
>>
>> D/GstPlayer( 1792): [1798], DEBUG  
>> mfw_gst_avidemuxer.c:499:avidemuxer_fill_stream_info: Added pad video_00
>> with caps 0xb03a0
>> D/GstPlayer( 1792): [1801], DEBUG  
>> gstdecodebin2.c:1827:gst_decode_group_check_if_blocked: Group isn't
>> complete yet
>> D/GstPlayer( 1792): [1798], DEBUG  
>> mfw_gst_avidemuxer.c:607:avidemuxer_fill_stream_info:  out of  gboolean
>> avidemuxer_fill_stream_info 
>> D/GstPlayer( 1792): 
>> D/GstPlayer( 1792): [1798], DEBUG  
>> mfw_gst_avidemuxer.c:992:mfw_gst_avidemuxer_parse_header: signaling no
>> more pads from mfw_avidemuxer
>> D/GstPlayer( 1792): [1798], DEBUG  
>> gstdecodebin2.c:1979:gst_decode_group_expose: going to expose group
>> 0xbf780
>> D/GstPlayer( 1792): [1798], DEBUG  
>> gstdecodebin2.c:2037:gst_decode_group_expose: About to expose dpad
>> decodepad2 as src0
>> D/GstPlayer( 1792): [1798], DEBUG  
>> gstdecodebin2.c:2046:gst_decode_group_expose: emitting new-decoded-pad
>> D/GstPlayer( 1792): [1798], DEBUG  
>> gsturidecodebin.c:671:new_decoded_pad_cb: new decoded pad, name: <src0>.
>> Last: 1
>> D/GstPlayer( 1792): [1798], DEBUG   gstplaybin2.c:1680:pad_added_cb: pad
>> uridecodebin0:src0 with caps 0x76620 added in group 0x8c290
>>
>> I don't know what causes the errors which seemed it didn't touch the sink
>> ?
>> BTW:i do this job on freescale IMX27 board which supported hardware codec
>> and freescale offers the plugins avidemuxer and decoder . 
>>
>> Can anyone help me ? i will be appreciated.
>>
>>
> I'm new to gstreamer .And i wonder what the plugin "ffmepcolorspace" do ? 
> I have looked into the source code but still have no idea.

It adjust colorspace formats, e.g. converts YUV images between different
packings or from/to rgb.

Stefan