[streaming] transcode and size problem

hi,

I have a problem with a transcode and size

I receive stream in udp then I transcode it again for http access.

Source is capture card and stream is in 720x576, when I connect myself  
directly to the source (still with vlc) no problem
now when I catch source then I transcode it, then now I open http  
stream from this last point, I get a window with full width screen !  
whereas I should get same size as source => 720x576

what's the problem, do I need to add --width and --height options ?  
ration option ???

look my log that I have on my computer (in that case, I get video with  
width = 1280 !!!) :
-------------------------------------------
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 debug: found NAL_SPS
packetizer_h264 debug: found NAL_PPS
ffmpeg debug: concealing 1620 DC, 1620 AC, 1620 MV errors
  (h264@00B56250)
ffmpeg debug: concealing 0 DC, 0 AC, 0 MV errors
  (h264@00B56250)
main debug: no usable vout present, spawning one
main debug: window size: 1536x576
main debug: looking for video output module: 6 candidates
vout_directx debug: creating DirectXEventThread
vout_directx debug: DirectXCreateWindow
vout_directx debug: created video sub-window
main debug: waiting for thread completion
main debug: thread 4092 (DirectX Events Thread) created at priority 0  
(directx.c:278)
vout_directx debug: DirectXEventThread running
vout_directx debug: DirectXInitDDraw
vout_directx debug: directx-device:
vout_directx debug: DirectXEnumCallback: Pilote d'affichage principal, display
main debug: Registering subpicture channel, ID: 2
main debug: Registering subpicture channel, ID: 3
main debug: Registering subpicture channel, ID: 4
main debug: Registering subpicture channel, ID: 5
vout_directx debug: screen dimensions (0x0,1280x1024)
vout_directx debug: DirectDraw Capabilities: overlay=1 yuvoverlay=1  
can_deinterlace_overlay=1 colorkey=1 stretch=1 bltfourcc=1
vout_directx debug: align_boundary_src=0,0 align_boundary_dest=1,1  
align_size_src=0,0 align_size_dest=0,0
vout_directx debug: End DirectXInitDDraw
vout_directx debug: DirectXCreateDisplay
vout_directx debug: DirectXCreateClipper
vout_directx debug: disabling screen saver
main debug: using video output module "vout_directx"
vout_directx debug: NewPictureVec overlay:yes chroma:YV12
main debug: waiting for thread completion
vout_directx debug: YUV overlay created successfully
vout_directx debug: End NewPictureVec (succeeded)
main debug: got 1 direct buffer(s)
main debug: picture in 720x576 (0,0,720x576), chroma I420, ar 8:3, sar 32:15
main debug: picture user 720x576 (0,0,720x576), chroma I420, ar 8:3, sar 32:15
main debug: picture out 720x576 (0,0,720x576), chroma I420, ar 8:3, sar 32:15
main debug: direct render, mapping render pictures 0-6 to system pictures 1-7
main debug: thread 4632 (video output) created at priority 1  
(video_output/video_output.c:421)
------------------------------------------------

please help me

Thanks

Nicolas


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