hardware accelerator failed to decode pictureĮrror while decoding stream #0:0: Unknown error occurred % ffmpeg -hwaccel videotoolbox -i m1_not_decodable_with_acceleration.ts -an output.ts videotoolbox) to decode the frames of some video streams encoded with h264 fails on recent M1 mac computers.Įnsure you are using a Mac with an Apple M1 chip.ĭownload the attached sample file and use ffmpeg to target it with In one specific example, one company found a 5-fold increase in video encoding when using OpenCL-like technology on the PC.Using hardware acceleration (i.e. NVIDIA Geforce 8600M GT, GeForce 8800 GT, GeForce 8800 GTS, Geforce 9400M, GeForce 9600M GT, GeForce GT 120, GeForce GT 130. Some tasks may find greater benefit from this than others, but could potentially offer substantial performance boosts. OpenCL will allow developers to easily offload additional processing tasks to the computer's GPU. Meanwhile, Apple also details which GPUs will be supported for their upcoming OpenCL API. Hardware decoding of H.264 video improves the performance of video playback while leaving your computer's CPU free for other tasks. Unfortunately, it does not appear that this support will extend to older video cards. Mac OS X Snow Leopard's specs officially acknowledge this support but it appears to be limted to the NVIDIA 9400M graphics processors found in recent Apple laptops and desktops. While Apple has previously included graphics cards that have contained hardware support for H.264 decoding, the company has only recently taken advantage of this hardware acceleration. MacRumors had previously reported that the latest MacBook Pros offered hardware acceleration for H.264 video playback. Apple's Mac OS X Snow Leopard specs page also reveals a number of other details about hardware support for both H.264 acceleration and OpenCL.
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