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dm8168无法播放视频

yun zhou
Intellectual 260 points


请问老师，我先将根文件系统带的那个dm816x_1080p_demo.264用命令./decode_a8host_debug.xv5T -i ../data/videos/dm816x_1080p_demo.264 -w 1920 -h 1080 -o sample.yuv -c h264转换成sample.yuv这个文件后，再用命令./display_a8host_debug.xv5T -i ./sample.yuv -d 2  想用电视播放出来，是通过SD接到电视的AV上，结果却在电视显示雪花，请问这可能是什么原因，是不是需要配置什么地方或修改源代码才行啊？？？？

  • 0
    TI__Expert 8140 points

    你用的什么软件呀?

  • 0 回复 Feng Dong
    Intellectual 260 points

    用的是ezsdk的，在uboot里面我设置了启动参数setenv bootargs 'console=ttyO2,115200n8 notifyk.vpssm3_sva=0xBF900000 ti816xfb.vram=0:16M earlyprintk root=/dev/nfs nfsroot=192.168.1.101:/home/zhouyun/ezsdk/filesystem/rootfs,nolock rw mem=128M vram=16M'

    但我发现在启动的最后有这样一些错误提示：

    PRCM Initialization completed
    SysLink version : 2.10.03.20
    SysLink module created on Date:Apr 29 2012 Time:20:45:11
    FIRMWARE: I2cInit will be done by M3
    FIRMWARE: Memory map bin file not passed
    Usage : firmware_loader <Processor Id> <Location of Firmware> <start|stop> [-mmap <memory_map_file>] [-i2c <0|1>]
    ===Mandatory arguments===
    <Processor Id> 0: DSP, 1: Video-M3, 2: Vpss-M3
    <Location of Firmware> firmware binary file
    <start|stop> to start/stop the firmware
    ===Optional arguments===
    -mmap input memory map bin file name
    -i2c 0: i2c init not done by M3, 1(default): i2c init done by M3
    FIRMWARE: isI2cInitRequiredOnM3: 1
    FIRMWARE: Default memory configuration is used
    MemCfg: DCMM (Dynamically Configurable Memory Map) Version : 2.1.2.1
    FIRMWARE: Memory Configuration status : In Progress
    FIRMWARE: 1 start Successful
    Loading HDVPSS Firmware
    FIRMWARE: I2cInit will be done by M3
    FIRMWARE: Memory map bin file not passed
    Usage : firmware_loader <Processor Id> <Location of Firmware> <start|stop> [-mmap <memory_map_file>] [-i2c <0|1>]
    ===Mandatory arguments===
    <Processor Id> 0: DSP, 1: Video-M3, 2: Vpss-M3
    <Location of Firmware> firmware binary file
    <start|stop> to start/stop the firmware
    ===Optional arguments===
    -mmap input memory map bin file name
    -i2c 0: i2c init not done by M3, 1(default): i2c init done by M3
    FIRMWARE: isI2cInitRequiredOnM3: 1
    FIRMWARE: Default memory configuration is used
    MemCfg: DCMM (Dynamically Configurable Memory Map) Version : 2.1.2.1
    FIRMWARE: Memory Configuration status : In Progress
    FIRMWARE: 2 start Successful
    FB: no memory to allocate
    ti81xxfb ti81xxfb: failed to allocate framebuffer
    ti81xxfb ti81xxfb: failed to allocate fb memory.
    ti81xxfb: probe of ti81xxfb failed with error -12
    open /dev/fb0: No such file or directory
    HDMI W1 rev 2.0
    I2C No Ack

    Starting system message bus: dbus.
    Starting telnet daemon.
    Starting syslogd/klogd: done
    Starting thttpd.
    Starting Matrix GUI application.

    上面的发现了fb相关的错误，不知道是不是有什么影响？

    FB: no memory to allocate
    ti81xxfb ti81xxfb: failed to allocate framebuffer
    ti81xxfb ti81xxfb: failed to allocate fb memory.
    ti81xxfb: probe of ti81xxfb failed with error -12
    open /dev/fb0: No such file or directory

  • 0 回复 yun zhou
    Intellectual 400 points

    问下 你的问题解决了吗？ 怎么解决的？