help, about the size of video

[谢昆明]

hello,i have a probrem. i play a 1080p movie with hardware decoder(h264), but it can't resize itself to window.
here are the error msg

#gst-launch-0.10 playbin uri=file:///root/h264x1080p.m2ts 
.......
pipe was PREROLLING ...
libva: libva version 0.31.1-sds1
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
libva: va_getDriverName() returns 0
libva: Trying to open /usr/lib/va/drivers/fglrx_drv_video.so
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
libva: va_openDriver() returns 0
libva: libva version 0.31.1-sds1
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
libva: va_getDriverName() returns 0
libva: Trying to open /usr/lib/va/drivers/fglrx_drv_video.so
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
libva: va_openDriver() returns 0
Warning：from  /GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:vbin/GstVaapiSink:vaapisink0：problem inside data scream。
debug message：
gstbasesink.c(3433): gst_base_sink_chain_unlocked (): /GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:vbin/GstVaapiSink:vaapisink0:
Received buffer without a new-segment. Assuming timestamps start from 0.
pipe was PREROLLED ...
        ...
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