[vlc-devel] Dropped frames

[Dugal Harris]

Hello

I am compiling the latest SVN code with Cygwin - gcc 3.4.4.  I follow 
the instructions in http://wiki.videolan.org/Win32CompileCygwin.  I 
cannot play video from files or capture devices, frames seemingly arrive 
late and are dropped.  I get the following messages when trying to play 
back a file (my computer is definitely not too slow). 

main debug: looking for decoder module: 26 candidates
ffmpeg debug: libavcodec initialized (interface 3348736 )
ffmpeg debug: postprocessing disabled
ffmpeg debug: using direct rendering
ffmpeg debug: ffmpeg codec (MPEG-4 Video) started
main debug: using decoder module "ffmpeg"
main debug: thread 4752 (decoder) created at priority 0 
(input/decoder.c:172)
main debug: `D:\Data\Videos\Vehicles\Source\Jules1.avi' successfully opened
avi debug: old:0 < new 0
main debug: no usable vout present, spawning one
main debug: window size: 352x288
main debug: looking for video output module: 6 candidates
vout_directx debug: creating DirectXEventThread
main debug: waiting for thread completion
vout_directx debug: DirectXCreateWindow
vout_directx debug: created video sub-window
main debug: thread 4784 (DirectX Events Thread) created at priority 0 
(directx.c:279)
vout_directx debug: DirectXEventThread running
vout_directx debug: DirectXInitDDraw
vout_directx debug: directx-device:
vout_directx debug: DirectXEnumCallback: Primary Display Driver, display
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"
main debug: waiting for thread completion
vout_directx debug: NewPictureVec overlay:yes chroma:YV12
vout_directx debug: YUV overlay created successfully
vout_directx debug: End NewPictureVec (succeeded)
main debug: got 1 direct buffer(s)
main debug: picture in 352x288 (0,0,352x288), chroma I420, ar 11:9, sar 1:1
main debug: picture user 352x288 (0,0,352x288), chroma I420, ar 11:9, 
sar 1:1
main debug: picture out 352x288 (0,0,352x288), chroma I420, ar 11:9, sar 1:1
main debug: direct render, mapping render pictures 0-6 to system 
pictures 1-7
main debug: thread 4852 (video output) created at priority 1 
(video_output/video_output.c:448)
ffmpeg warning: frame skip 8
 (mpeg4 at 00BD9A40)
ffmpeg warning: frame skip 8
 (mpeg4 at 00BD9A40)
ffmpeg error: more than 5 seconds of late video -> dropping frame 
(computer too slow ?)
ffmpeg error: more than 5 seconds of late video -> dropping frame 
(computer too slow ?)
ffmpeg error: more than 5 seconds of late video -> dropping frame 
(computer too slow ?)
main warning: late picture skipped (57432302681973000)
main warning: late picture skipped (57492432224077000)
main warning: late picture skipped (57543971831589000)
main warning: late picture skipped (57612691308245000)
main warning: late picture skipped (57677115817645000)
avi warning: cannot skip packet, track disabled
ffmpeg debug: ffmpeg codec (MPEG-4 Video) stopped
main debug: removing module "ffmpeg"
main debug: thread times: real 0m0.312500s, kernel 0m0.015625s, user 
0m0.015625s
main debug: thread 4752 joined (input/decoder.c:204)
main debug: killing decoder fourcc `XVID', 4310 PES in FIFO
main debug: EOF reached

What am I doing wrong?

Thanks
Dugal

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