Re: using MFC memory to memery encoder, start stream and queue order problem

[Andrzej Hajda <a.hajda@samsung.com>]

On 01/15/2014 04:50 PM, randy wrote:
>
> Sorry, I forget to switch to new kernel,
> but in new kernel it doesn't work too.
> root@kagami:~/v4l2-mfc-encoder# ./mfc-encode -m /dev/video1 -c
> h264,header_mode=1 -d 1
> mfc codec encoding example application
> Andrzej Hajda <a.hajda@samsung.com>
> Copyright 2012 Samsung Electronics Co., Ltd.
>
> 106.984340799:args.c:parse_args:190: codec: H264
> 106.984870424:args.c:parse_args:187: opt header_mode=1
> 106.999434841:mfc.c:mfc_create:87: MFC device /dev/video1 opened with fd=3
> 107.15356632:v4l_dev.c:v4l_req_bufs:116: Succesfully requested 16
> buffers for device 3:0
> 107.15534549:func_dev.c:func_req_bufs:42: Succesfully requested 16
> buffers for device -1:1
> 107.15708424:func_dev.c:func_enq_buf:113: Enqueued buffer 0/16 to -1:1
> 107.15862049:func_dev.c:func_enq_buf:113: Enqueued buffer 1/16 to -1:1
> 107.16004132:func_dev.c:func_enq_buf:113: Enqueued buffer 2/16 to -1:1
> 107.16146841:func_dev.c:func_enq_buf:113: Enqueued buffer 3/16 to -1:1
> 107.16284799:func_dev.c:func_enq_buf:113: Enqueued buffer 4/16 to -1:1
> 107.16429049:func_dev.c:func_enq_buf:113: Enqueued buffer 5/16 to -1:1
> 107.16569382:func_dev.c:func_enq_buf:113: Enqueued buffer 6/16 to -1:1
> 107.16715257:func_dev.c:func_enq_buf:113: Enqueued buffer 7/16 to -1:1
> 107.16859924:func_dev.c:func_enq_buf:113: Enqueued buffer 8/16 to -1:1
> 107.17006674:func_dev.c:func_enq_buf:113: Enqueued buffer 9/16 to -1:1
> 107.17158466:func_dev.c:func_enq_buf:113: Enqueued buffer 10/16 to -1:1
> 107.17307132:func_dev.c:func_enq_buf:113: Enqueued buffer 11/16 to -1:1
> 107.17455632:func_dev.c:func_enq_buf:113: Enqueued buffer 12/16 to -1:1
> 107.17599216:func_dev.c:func_enq_buf:113: Enqueued buffer 13/16 to -1:1
> 107.17748299:func_dev.c:func_enq_buf:113: Enqueued buffer 14/16 to -1:1
> 107.17897341:func_dev.c:func_enq_buf:113: Enqueued buffer 15/16 to -1:1
> v4l_dev.c:v4l_req_bufs:111: error: Failed to request 4 buffers for
> device 3:1)
> root@kagami:~/v4l2-mfc-encoder# ls -l demo.out
> -rw-r--r-- 1 root root 0 Jan 15 15:49 demo.out
> root@kagami:~/v4l2-mfc-encoder# uname -a
> Linux kagami 3.13.0-rc8-00018-g8f39393-dirty #17 SMP PREEMPT Wed Jan 15
> 18:40:53 CST 2014 armv7l GNU/Linux
> root@kagami:~/v4l2-mfc-encoder# dmesg|grep mfc
> [    1.295000] s5p-mfc 13400000.codec: decoder registered as /dev/video0
> [    1.295000] s5p-mfc 13400000.codec: encoder registered as /dev/video1
> [  100.645000] s5p_mfc_alloc_priv_buf:43: Allocating private buffer failed
> [  100.645000] s5p_mfc_alloc_codec_buffers_v5:177: Failed to allocate
> Bank1 temporary buffer
> [  107.065000] s5p_mfc_alloc_priv_buf:43: Allocating private buffer failed
> [  107.065000] s5p_mfc_alloc_codec_buffers_v5:177: Failed to allocate
> Bank1 temporary buffer
Try to increase CMA size in kernel config - CONFIG_CMA_SIZE_MBYTES,
by default it is set to 16MB, try for example 64MB.

Regards
Andrzej