1.1ARC音频回传通道 ARC(Audio Return Channel)音频回传功能在HDMI 1.4版本中被引入,功能跟光纤数字音频端口(optical audio)类似,带宽大约1Mb,可以回传的音频格式: Dolby Digital 5.1、DTS 5.1、Dolby Digital Plus 5.1、LPCM 2.0 也就是说,ARC只能传输基础的有损(压缩)5.1声道音轨和无损LPCM 立体声音轨。 那是不...
4 4：主板不一设置也不一样有的要在【BIOS】中打开【HDMI】设置进BIOS选Integrated Peripherals（集成周边设备）1、HDMI Codec Control选择Enable（开启）2、HDMI/DVI选择HDMI 3、HD Audio选择Auto（这个默认就是开的）5 5：如果你是显卡有带【原声音频】那在在【控制面板里】-【声音和音频设备】的音频选项-默认...
orangepi@orangepizero3 ~> aplay -l *** List of PLAYBACK Hardware Devices *** card 0: audiocodec [audiocodec], device 0: CDC PCM Codec-0 [CDC PCM Codec-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: ahubhdmi [ahubhdmi], device 0: ahub_plat-i2s-hifi i2s-hifi-...
serviceName = "hdf_audio_codec_hdmi_dev0"; codecName = "codec_service_1"; platformName = "hdmi_dma_service_0"; cpuDaiName = "hdmi_dai_service"; codecDaiName = "hdmi_codec_dai"; } ... } } card_controller配置项根据声卡包含的驱动服务进行配置,不同声卡包含的驱动服务可能不同,HDMI声卡包...
device_codec:: device {... device_hdmi:: deviceNode { policy=1; priority=50; preload=0; permission=0666; moduleName="AUDIO_HDMI_CODEC"; serviceName="codec_service_1"; deviceMatchAttr="hdf_codec_driver_1"; } ... } ... device_dma:: device {... ...
因此CODEC有声音时候，也有声音通过I2S 发送到HDMI，这样取消掉HDMI Audio 检测即可实现HDMI &codec 喇叭...
device_codec :: device {… device_hdmi :: deviceNode { policy = 1; priority = 50; preload = 0; permission = 0666; moduleName = “AUDIO_HDMI_CODEC”; serviceName = “codec_service_1”; deviceMatchAttr = “hdf_codec_driver_1”; ...
带HDMI接口的显卡HD音频驱动解码
HDMI的驱动codec的代码ADM框架中已经实现了,我们只需要根据不同的单板平台修改平台下面的配置文件。Dai和platform的驱动代码需要根据各自平台自行开发。yangfan开发板Dai和platform驱动代码路径在device\board\isoftstone\yangfan\kernel\hdf\drivers\audio下面的dai和soc目录下面。
This is enough to freeze the player and prompt the above error when a receiver with passthrough is the audio output. sample.zip Json for demo player: { "name": "Audio passthrough tests", "samples": [ { "name": "AC3 5.1 to 2.0 to 5.1", ...