于 2013/3/2 12:00, Lonsn 写道: > 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? > > Thanks. > Maybe the up issue due to the input file format. Now I use a H264 ES file as input, failed with different output. #./v4l2_decode -f /dev/video5 -m /dev/video9 -d /dev/fb0 -c h264 -i c.h264 Kernel print: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = afa78000 [00000000] *pgd=4ea37831, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] PREEMPT ARM Modules linked in: CPU: 0 Not tainted (3.8.0-dirty #26) PC is at dma_cache_maint_page+0x58/0xa8 LR is at 0x80000000 pc : [<80014f2c>] lr : [<80000000>] psr: a0000013 sp : ae939ac8 ip : 8050378c fp : aead2240 r10: 00000000 r9 : 00000001 r8 : 804aceec r7 : 00000001 r6 : 804b5b70 r5 : 0000fc03 r4 : 00000000 r3 : 00000001 r2 : 0006c000 r1 : 00000000 r0 : fc03bc00 Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 4fa78019 DAC: 00000015 Process v4l2_decode (pid: 2433, stack limit = 0xae938230) Stack: (0xae939ac8 to 0xae93a000) 9ac0: 00000001 80778000 00000000 80015054 80019398 0000006c 9ae0: ace36e00 00000000 aead2b40 80015d34 00000001 00000000 8050378c 00000000 9b00: ae939b54 00000000 aead2b40 804aceec 00000001 00000001 aead2240 804b5b70 9b20: 00000000 80245a4c 00000000 000000d0 00000001 802e41c8 0006c000 aead2280 9b40: 72601000 0000006c 805037a8 0000006c af9f8e00 0004306b 00001020 acc3d400 9b60: ae939b98 accb9550 acc3d400 accb9550 00000000 00000000 805116c4 802411c8 9b80: afb1d900 acc3d400 805116c4 00000000 0006c000 0006c000 72601000 76f43000 9ba0: 00000003 00000000 afa0ca98 00001080 60000193 803604cc ae939bdc 800480a8 9bc0: 00000000 804ba074 af907000 00036000 00036000 725cb000 0c36d194 80036da4 9be0: 20000113 20000193 00000401 acd982b8 afb1d900 00000003 af9f6144 802b8698 9c00: af9f6000 afb1d900 af9f6144 acd982b8 00001080 802bc324 af9f6000 80342690 9c20: afb1d900 00001088 af9f6000 afb1d900 00001088 00000000 af9f6070 c802a8c0 9c40: 00001088 802b5338 af9f6000 afb1d900 00000000 af9f6038 acf01ee4 8030bdcc 9c60: af9f6000 80360504 af9f6000 8030d39c afb1d900 00000011 804d8988 804ab47c 9c80: acf01ee4 8030e5c0 00004003 00000002 804ab47c af989800 00000002 afb1d918 9ca0: 0000109c 804d8988 acf03310 00000000 1402a8c0 c802a8c0 00000000 afb1d900 9cc0: 80387d54 804aab68 804d8988 804d8988 00000000 00000011 00000001 802e41c8 9ce0: afb1d900 acf03310 afb1d918 ae939d5c 009c3f49 00000000 009c3ecd 802e3da8 9d00: af989800 00000084 00000029 804ab4ec 804aa66c ae938000 ae939d5c 00000008 9d20: af989800 afb1d900 804ab4ec 802c101c 804bbd74 00000000 804aa680 80512540 9d40: 804dde40 00400040 01400000 80065fe8 804ba828 af817020 af817020 8035e09c 9d60: af817034 ae938000 22222222 22222222 22222222 accb9550 acc3d400 accb9550 9d80: acc3d400 0000000a afa07600 00000000 8037cf88 8024366c accb9550 ae939e58 9da0: acd2dc88 802437d0 00000001 ae939e58 accb9400 8037cf88 ace36b3c 00000000 9dc0: 000f8335 8023dfc8 00000001 afa07600 ae939e58 8023114c ae939e58 af817080 9de0: c044560f 00000000 804d3194 80233038 94f9da8f 00000001 af85e930 ace7db00 9e00: ae939e58 ace36b3c 804ba828 ffffffff 00000000 800426c0 804acaec ffffffff 9e20: acc6c000 c044560f ae939e58 00000078 7129fd08 ae939e8c ae8deb00 80232dd4 9e40: 7129fd80 80234200 ace7cf00 00000001 00000003 afa07600 00000000 0000000a 9e60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9e80: 00000000 00000000 00000002 ae8deb00 00000002 00000000 00000000 80055ba4 9ea0: 00000032 76f25000 acd2dc40 af817020 af817020 8035e74c af817034 00000001 9ec0: 22222222 22222222 22222222 22222222 00000000 af817020 af817020 afa07600 9ee0: af817020 c044560f af817080 7129fd80 ae938000 00000000 712a06a4 8022ef70 9f00: 7129fd80 afa07600 af5eb098 c044560f 000021b0 800b5c38 ae939f30 aea4c0c8 9f20: 00000000 00000001 801b5a2c 00000000 00000000 00000000 0040004c 00000001 9f40: 00000081 76f256d8 00000001 00000000 ae938000 00000000 00000016 8005812c 9f60: 00000000 00000001 afa07600 7129fd80 c044560f 00000005 ae938000 00000000 9f80: 712a06a4 800b6214 00000000 00000001 712a0470 00000000 00000000 00000036 9fa0: 8000ede8 8000ec40 712a0470 00000000 00000005 c044560f 7129fd80 7129fd80 9fc0: 712a0470 00000000 00000000 00000036 00000000 00000000 00000000 712a06a4 9fe0: 000165e8 7129fcf4 0000b5d9 76ecfefc 00000010 00000005 00000000 00000000 [<80014f2c>] (dma_cache_maint_page+0x58/0xa8) from [<80015054>] (arm_dma_map_page+0x80/0x84) [<80015054>] (arm_dma_map_page+0x80/0x84) from [<80015d34>] (arm_dma_map_sg+0x68/0x248) [<80015d34>] (arm_dma_map_sg+0x68/0x248) from [<80245a4c>] (vb2_dc_get_userptr+0x364/0x670) [<80245a4c>] (vb2_dc_get_userptr+0x364/0x670) from [<802411c8>] (__qbuf_userptr+0xac/0x3f0) [<802411c8>] (__qbuf_userptr+0xac/0x3f0) from [<8024366c>] (__buf_prepare+0xb4/0xd0) [<8024366c>] (__buf_prepare+0xb4/0xd0) from [<802437d0>] (vb2_qbuf+0x148/0x28c) [<802437d0>] (vb2_qbuf+0x148/0x28c) from [<8023dfc8>] (v4l2_m2m_qbuf+0x20/0x38) [<8023dfc8>] (v4l2_m2m_qbuf+0x20/0x38) from [<8023114c>] (v4l_qbuf+0x3c/0x40) [<8023114c>] (v4l_qbuf+0x3c/0x40) from [<80233038>] (__video_do_ioctl+0x264/0x324) [<80233038>] (__video_do_ioctl+0x264/0x324) from [<80234200>] (video_usercopy+0x118/0x3cc) [<80234200>] (video_usercopy+0x118/0x3cc) from [<8022ef70>] (v4l2_ioctl+0xe8/0x148) [<8022ef70>] (v4l2_ioctl+0xe8/0x148) from [<800b5c38>] (do_vfs_ioctl+0x84/0x624) [<800b5c38>] (do_vfs_ioctl+0x84/0x624) from [<800b6214>] (sys_ioctl+0x3c/0x60) [<800b6214>] (sys_ioctl+0x3c/0x60) from [<8000ec40>] (ret_fast_syscall+0x0/0x30) Code: 11a0cb85 11a0cbac 1084418c e35e0000 (e594c000) ---[ end trace 13a7778bb939e49b ]--- v4l2_decode app print: 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 80 (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: 768x576 plane[0]=442368 plane[1]=221184 (mfc.c:mfc_dec_setup_capture:293): Crop parameters w=720 h=576 l=0 t=0 (mfc.c:mfc_dec_setup_capture:307): Number of MFC CAPTURE buffers is 6 (requested 6, extra 2) (mfc.c:mfc_dec_setup_capture:342): Succesfully mmapped 6 MFC CAPTURE buffers (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 0 on OUTPUT queue (fimc.c:fimc_sfmt:114): Successful SFMT on OUTPUT of FIMC (768x576) (fimc.c:fimc_setup_output_from_mfc:149): Succesfully setup OUTPUT of FIMC (fimc.c:fimc_sfmt:114): Successful SFMT on CAPTURE of FIMC (1024x768) (fimc.c:fimc_setup_capture_from_fb:193): Succesfully setup CAPTURE of FIMC (main.c:main:457): I for one welcome our succesfully setup environment. (mfc.c:mfc_dec_queue_buf:178): Queued buffer on CAPTURE queue with index 0 (mfc.c:mfc_dec_queue_buf:178): Queued buffer on CAPTURE queue with index 1 (mfc.c:mfc_dec_queue_buf:178): Queued buffer on CAPTURE queue with index 2 (mfc.c:mfc_dec_queue_buf:178): Queued buffer on CAPTURE queue with index 3 (mfc.c:mfc_dec_queue_buf:178): Queued buffer on CAPTURE queue with index 4 (mfc.c:mfc_dec_queue_buf:178): Queued buffer on CAPTURE queue with index 5 (mfc.c:mfc_stream:236): Stream ON on CAPTURE queue (main.c:main:485): Launching threads (main.c:fimc_thread_func:291): Before fimc.todo (main.c:parser_thread_func:153): parser.func = 0xa31d (main.c:parser_thread_func:166): Extracted frame of size 67319 (main.c:parser_thread_func:168): Before OUTPUT queue (mfc.c:mfc_dec_queue_buf:178): Queued buffer on OUTPUT queue with index 0 (main.c:parser_thread_func:170): After OUTPUT queue (main.c:parser_thread_func:153): parser.func = 0xa31d (main.c:parser_thread_func:166): Extracted frame of size 48927 (main.c:parser_thread_func:168): Before OUTPUT queue (mfc.c:mfc_dec_queue_buf:178): Queued buffer on OUTPUT queue with index 1 (main.c:parser_thread_func:170): After OUTPUT queue (main.c:parser_thread_func:178): Before OUTPUT dequeue (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 0 on OUTPUT queue (main.c:parser_thread_func:180): After OUTPUT dequeue (main.c:parser_thread_func:153): parser.func = 0xa31d (main.c:parser_thread_func:166): Extracted frame of size 297 (main.c:parser_thread_func:168): Before OUTPUT queue (mfc.c:mfc_dec_queue_buf:178): Queued buffer on OUTPUT queue with index 0 (main.c:parser_thread_func:170): After OUTPUT queue (main.c:parser_thread_func:178): Before OUTPUT dequeue (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 1 on OUTPUT queue (main.c:parser_thread_func:180): After OUTPUT dequeue (main.c:parser_thread_func:153): parser.func = 0xa31d (main.c:parser_thread_func:166): Extracted frame of size 31646 (main.c:parser_thread_func:168): Before OUTPUT queue (mfc.c:mfc_dec_queue_buf:178): Queued buffer on OUTPUT queue with index 1 (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 0 on CAPTURE queue (main.c:fimc_thread_func:293): After fimc.todo (main.c:fimc_thread_func:295): Processing by FIMC (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 2 on CAPTURE queue (main.c:parser_thread_func:170): After OUTPUT queue (main.c:parser_thread_func:178): Before OUTPUT dequeue (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 0 on OUTPUT queue (main.c:parser_thread_func:180): After OUTPUT dequeue (main.c:parser_thread_func:153): parser.func = 0xa31d (main.c:parser_thread_func:166): Extracted frame of size 45880 (main.c:parser_thread_func:168): Before OUTPUT queue (mfc.c:mfc_dec_queue_buf:178): Queued buffer on OUTPUT queue with index 0 (main.c:parser_thread_func:170): After OUTPUT queue (main.c:parser_thread_func:178): Before OUTPUT dequeue (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 1 on OUTPUT queue (main.c:parser_thread_func:180): After OUTPUT dequeue (main.c:parser_thread_func:153): parser.func = 0xa31d (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 3 on CAPTURE queue (main.c:mfc_thread_func:206): Before fimc.done (main.c:parser_thread_func:166): Extracted frame of size 37290 (main.c:parser_thread_func:168): Before OUTPUT queue (mfc.c:mfc_dec_queue_buf:178): Queued buffer on OUTPUT queue with index 1 (main.c:parser_thread_func:170): After OUTPUT queue (main.c:parser_thread_func:178): Before OUTPUT dequeue (mfc.c:mfc_dec_dequeue_buf:218): Dequeued buffer with index 0 on OUTPUT queue (main.c:parser_thread_func:180): After OUTPUT dequeue (main.c:parser_thread_func:153): parser.func = 0xa31d (main.c:parser_thread_func:166): Extracted frame of size 33533 (main.c:parser_thread_func:168): Before OUTPUT queue (mfc.c:mfc_dec_queue_buf:178): Queued buffer on OUTPUT queue with index 0 (main.c:parser_thread_func:170): After OUTPUT queue (main.c:parser_thread_func:178): Before OUTPUT dequeue -- 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
