帧的cache机制等)放在基类中, 把H264特定的逻辑(比如H264的参考帧管理,Interlaced码流中上下场的管理等)抽象到H264 decoder中,而子类GstVaH264Dec、GstD3D11H264Dec和GstNVH264Dec则调用具体的HW加速API来进行解码运算部分的加速。
application/x-rtp, media=video, encoding-name=H264 "<<"! rtph264depay ! video/x-h264, clock-rate=90000, width="<< frame_width <<", height="<< frame_height <<", framerate="<< framerate <<"/1 ! nvv4l2decoder ! video/x-raw(memory:NVMM), width="<< frame_width <<", height...
在Gstreamer中亦是如此, 并结合了面向对象的思想, 把所有decoder都需要的部分(比如输入输出管理,帧的cache机制等)放在基类中, 把H264特定的逻辑(比如H264的参考帧管理,Interlaced码流中上下场的管理等)抽象到H264 decoder中,而子类GstVaH264Dec、GstD3D11H264Dec和GstNVH264Dec则调用具体的HW加速API来进行解码运...
在Gstreamer中亦是如此, 并结合了面向对象的思想, 把所有decoder都需要的部分(比如输入输出管理,帧的cache机制等)放在基类中, 把H264特定的逻辑(比如H264的参考帧管理,Interlaced码流中上下场的管理等)抽象到H264 decoder中,而子类GstVaH264Dec、GstD3D11H264Dec和GstNVH264Dec则调用具体的HW加速API来进行解码运...
2) 软解,只要将解码器vaapidecode换成avdec_h264,播放器vaapisink换成 ximagesink即可 2、播放RTSP视频流 1) 硬解。 gst-launch-1.0 rtspsrc location=rtsp://username:passwd@ipaddr:port latency=0 ! rtph264depay ! capsfilter caps="video/x-h264" ! h264parse ! vaapidecode ! vaapipostproc width=80...
插件的名字一般采用 加速库名+codec名+功能 来命名。比如vah264dec就是基于VAAPI加速的H264 decoder。当然,除此之外,还有基于硬件的视频后处理插件vapostproc,vadeinterlace,以及多路视频复合插件vacompositor等。 这张图说明Gstreamer在编解码过程中如何使用硬件。首先,decoder会将码流中需要解码的data从主存拷贝到GPU ...
h264decoder: Update output frame duration when second field frame is discarded In case of an interlaced stream, if each field picture belongs to different GstVideoCodecFrame, updates output frame's duration based on discarded second field picture's timestamp information. Part-of: <https://gitlab...
Video decoding through OpenCV APIs does not utilize hardware decoder on Xavier. Are you able to use omxh264dec/omxh265dec in gstreamer or NvVideoDecoder in tegra_multimedia_api? nr942019 年7 月 3 日 03:119 The example above is not supposed to use the decoder. However, OpenCV does suppo...
h265parse ! nvv4l2decoder ! nv3dsink -e Table 3: Performance of the pipeline decoding video at 1280x720@30 Operation Mode CPU% GPU1% GPU2% FPS 0 (max performance) 13.83 26.23 36 31.66 1 (min power) 23.77 15.1 57.6 24.77 2 (30W) 25.83 2.4 59.8 24.87 Table 4: Performance of...
omxh265dec H.265 video decoder, uses OpenMax omxvp8dec VP8 video decoder, uses OpenMax omxvp9dec VP9 video decoder, uses OpenMax nvoverlaysink OpenMax video sink Previous: Development/Building_the_Kernel_from_Source Index Next: GStreamer/Example_Pipelines ❯ Have a Question? Ask Us...