> 在 2023年10月31日，下午4:40，Zhao Zhili <[email protected]> 写道： > > >> >> On Oct 31, 2023, at 13:16, Lynne <[email protected]> wrote: >> >> Oct 30, 2023, 18:35 by [email protected]: >> >>> >>>> On 2023/10/31 01:05, Lynne wrote: >>> >>>> Oct 30, 2023, 17:05 by [email protected]: >>>> >>>>> From: Zhao Zhili <[email protected]> >>>>> >>>>> Add vulkan renderer via libplacebo. >>>>> >>>>> Simple usage: >>>>> $ ffplay -hwaccel vulkan foo.mp4 >>>>> >>>>> Use cuda to vulkan map: >>>>> $ ffplay -hwaccel cuda foo.mp4 >>>>> >>>>> Create vulkan instance by libplacebo, and enable debug: >>>>> $ ffplay -hwaccel vulkan \ >>>>> -vulkan_params create_by_placebo=1:debug=1 foo.mp4 >>>>> --- >>>>> v5: >>>>> 1. add vulkan_params option. >>>>> 2. vulkan instance can be create by hwcontext or libplacebo. >>>>> >>>>> v4: add more optional extensions >>>>> v3: shared vulkan instance between libplacebo and hwcontext >>>>> >>>> You did it the other way. Instead of creating a device through libplacebo, >>>> just create a Vulkan device via the hwcontext, and use it for libplacebo. >>>> >>> >>> I have done both: >>> >>> 1. create vulkan device by hwcontext and import to placebo >>> >>> 2. create vulkan device by placebo and pass to hwcontext >>> >>> It's controlled by -vulkan_params create_by_placebo=1(0). Default is the >>> first behavior.
I mean default is create_by_placebo=0. >>> >>> Did I miss something? >>> >> >> Thanks, I overlooked that. Is there a reason for having a setting, and >> having that as the default? > > There is no particular reason for which one be the default. Let hwcontext > create vulkan > device is easy, but the code path has been tested by fftools/ffmpeg. The > second choice > covers another code path (av_hwdevice_ctx_alloc + av_hwdevice_ctx_init) and > helps > finding bugs. > > The macOS compatibility issue was found by the first choice. The memleak > issue was found by > the second. > >> _______________________________________________ >> ffmpeg-devel mailing list >> [email protected] >> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel >> >> To unsubscribe, visit link above, or email >> [email protected] with subject "unsubscribe". > > _______________________________________________ > ffmpeg-devel mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
