MDKA5D35-EK开发板ISI接口200万像素ov2640，ffmpeg测试

本文链接：https://blog.youkuaiyun.com/hzxiao1981/article/details/17318041

本文介绍使用MDKA5D35-EK开发板上的ISI接口200万像素ov2640摄像头进行ffmpeg测试的过程。文中详细记录了测试环境配置及测试结果，包括视频捕获参数、输出格式等。

MDKA5D35-EK开发板ISI接口200万像素ov2640，ffmpeg测试

By Mcuzone

官方参考：

http://www.at91.com/linux4sam/bin/view/Linux4SAM/UsingIsi

[root@mcuzone ffmpeg_arm]#./start.sh
ffmpeg version N-58699-ge3d7a39 Copyright (c) 2000-2013 the FFmpeg developers
  built on Dec  2 2013 14:17:08 with gcc 4.7.2 (crosstool-NG 1.18.0 - mcuzone(20130715)
  configuration: --prefix=./_install/ --enable-shared --disable-static --enable-gpl --cross-prefix=/opt/a5vfpv4-gnueabi/bin/arm-vfpv4-linux-gnueabi- --enable-cross-compile --arch=arm --disable-stripping --target-os=linux
  libavutil      52. 56.100 / 52. 56.100
  libavcodec     55. 44.100 / 55. 44.100
  libavformat    55. 22.100 / 55. 22.100
  libavdevice    55.  5.102 / 55.  5.102
  libavfilter     3. 91.100 /  3. 91.100
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 17.104 /  0. 17.104
  libpostproc    52.  3.100 / 52.  3.100
[video4linux2,v4l2 @ 0x4edf0] The driver does not allow to change time per frame
Input #0, video4linux2,v4l2, from '/dev/video0':
  Duration: N/A, start: 1120.252038, bitrate: N/A
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 320x240, 10.25 tbr, 1000k tbn, 1000k tbc
Output #0, avi, to 'video.avi':
  Metadata:
    ISFT            : Lavf55.22.100
    Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240, q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo -> mpeg4)
Press [q] to stop, [?] for help
frame=  250 fps= 11 q=31.0 Lsize=     376kB time=00:00:10.00 bitrate= 308.1kbits/s
video:365kB audio:0kB subtitle:0 global headers:0kB muxing overhead 3.164538%
atmel_isi atmel_isi: Disable ISI timed out
[root@mcuzone ffmpeg_arm]#

built on Dec 2 2013 14:17:08 with gcc 4.7.2 (crosstool-NG 1.18.0 - mcuzone(20130715)

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