Hi Lonsn, > From: Lonsn [mailto:lonsn2005@xxxxxxxxx] > Sent: Saturday, March 02, 2013 5:00 AM > > Hi, > I tested the MFC decode example v4l2_decode from > http://git.infradead.org/users/kmpark/public-apps and meet some > problems as following: > # ./v4l2_decode -f /dev/video5 -m /dev/video9 -d /dev/fb0 -c mpeg4 -i > shrek.m4v > V4L2 Codec decoding example application > Kamil Debski <k.debski@xxxxxxxxxxx> > Copyright 2012 Samsung Electronics Co., Ltd. > > (fb.c:fb_open:51): Framebuffer properties: xres=1024, yres=768, bpp=32 > (fb.c:fb_open:53): Virtual resolution: vxres=1024 vyres=768 > (fimc.c:fimc_open:56): FIMC Info (/dev/video5): driver="s5pv210-fimc" > bus_info="" card="s5pv210-fimc" fd=0x5 > (mfc.c:mfc_open:57): MFC Info (/dev/video9): driver="s5p-mfc" > bus_info="" card="s5p-mfc" fd=0x6 > (main.c:main:415): Successfully opened all necessary files and devices > (mfc.c:mfc_dec_setup_output:101): Setup MFC decoding OUTPUT buffer > size=1048576 (requested=1048576) > (mfc.c:mfc_dec_setup_output:118): Number of MFC OUTPUT buffers is 2 > (requested 2) > (mfc.c:mfc_dec_setup_output:148): Succesfully mmapped 2 MFC OUTPUT > buffers > (main.c:extract_and_process_header:84): Extracted header of size 13089 > (mfc.c:mfc_dec_queue_buf:178): Queued buffer on OUTPUT queue with index > 0 > (mfc.c:mfc_stream:236): Stream ON on OUTPUT queue > (mfc.c:mfc_dec_setup_capture:277): MFC buffer parameters: 0x0 > plane[0]=0 > plane[1]=0 > Error (mfc.c:mfc_dec_setup_capture:283): Failed to get crop information > > And kernel print: > s5p_mfc_handle_error:420: Interrupt Error: 00000035 > vidioc_g_crop:782: Cannont set crop > > It seems MFC buffer parameters error first. > The shrek.m4v comes from http://www.uky.edu/~drlane/com351/shrek.m4v > and is H264 format. But if I use -c h264, then v4l2_decode will print: > Error (parser.c:parse_h264_stream:337): Output buffer too small for > current frame Error (main.c:extract_and_process_header:71): Failed to > extract header from stream > > Any suggestions? As far as I know shrek.m4v is an MPEG4 stream. Did you try it as an MPEG4 stream? > Thanks. Best wishes, -- Kamil Debski Linux Platform Group Samsung Poland R&D Center -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
