Re: [FFmpeg-user] Two questions about LGPL

2022-04-06 Thread Bo Zhou
Q1, This is compatible with LGPL. Q2, You need to discuss with FFmpeg group. This is not about your work, it's about ownership of intellectual property and distribution. The real problem is not about work itself, not on invocation of function these details, but distribution of your final product.

Re: [FFmpeg-user] Need help with Live Streaming using GPU

2019-10-09 Thread Bo Zhou
Have you benchmark the ffmpeg during the runtime to check where is the bottleneck ? On Thu, Oct 10, 2019 at 10:11 AM Karan Singh wrote: > Hi Team > > Any update on this? > > > i am struggling with live streaming of 4k videos with or without GPU. > > My question before describing my issue is what

Re: [FFmpeg-user] GPU speed increase

2018-11-18 Thread Bo Zhou
You can get more information here. https://developer.nvidia.com/nvidia-video-codec-sdk NVIDIA GPU works with the GPU newer than Kepler, MX150 is too old to support NVENC, the only way is DXVA. NVIDIA VideoCodec only supports MPEG1/2 H.264, HEVC and VP9, also the ffmpeg must be built with the NVE

Re: [FFmpeg-user] Get Hardware Buffer from FFmpeg 4.0 + VideoToolBox

2018-10-03 Thread Bo Zhou
ata.3!) > .retain() > .takeRetainedValue() > > In C, you would do something like: > > CVPixelBufferRef pixelBuffer = > CVPixelBufferRetain((CVPixelBufferRef)frame->data[3]); > > Cheers! > fumoboy007 > > On Sat Aug 18 05:50:45 EEST 2018, Bo Zhou > wrote: >

[FFmpeg-user] Get Hardware Buffer from FFmpeg 4.0 + VideoToolBox

2018-08-17 Thread Bo Zhou
Hi ! I'm using the FFmpeg 4.0.2 and successfully executed the example hw_decode on Mac. And I could see the trace log [h264 @ 0x7f97d980] Format videotoolbox_vld chosen by get_format(). [h264 @ 0x7f97d980] Format videotoolbox_vld requires hwaccel initialisation. [h264 @ 0x7f97d980] R