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| 1 | +/* | |
| 2 | + * This file is part of FFmpeg. | |
| 3 | + * | |
| 4 | + * FFmpeg is free software; you can redistribute it and/or | |
| 5 | + * modify it under the terms of the GNU Lesser General Public | |
| 6 | + * License as published by the Free Software Foundation; either | |
| 7 | + * version 2.1 of the License, or (at your option) any later version. | |
| 8 | + * | |
| 9 | + * FFmpeg is distributed in the hope that it will be useful, | |
| 10 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | + * Lesser General Public License for more details. | |
| 13 | + * | |
| 14 | + * You should have received a copy of the GNU Lesser General Public | |
| 15 | + * License along with FFmpeg; if not, write to the Free Software | |
| 16 | + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | + */ | |
| 18 | + | |
| 19 | +#ifndef AVFILTER_METAL_UTILS_H | |
| 20 | +#define AVFILTER_METAL_UTILS_H | |
| 21 | + | |
| 22 | +#include <Metal/Metal.h> | |
| 23 | +#include <CoreVideo/CoreVideo.h> | |
| 24 | + | |
| 25 | +void ff_metal_compute_encoder_dispatch(id<MTLDevice> device, | |
| 26 | + id<MTLComputePipelineState> pipeline, | |
| 27 | + id<MTLComputeCommandEncoder> encoder, | |
| 28 | + NSUInteger width, NSUInteger height); | |
| 29 | + | |
| 30 | +CVMetalTextureRef ff_metal_texture_from_pixbuf(void *avclass, | |
| 31 | + CVMetalTextureCacheRef textureCache, | |
| 32 | + CVPixelBufferRef pixbuf, | |
| 33 | + int plane, | |
| 34 | + MTLPixelFormat format); | |
| 35 | +#endif /* AVFILTER_METAL_UTILS_H */ | |
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| 1 | +/* | |
| 2 | + * This file is part of FFmpeg. | |
| 3 | + * | |
| 4 | + * FFmpeg is free software; you can redistribute it and/or | |
| 5 | + * modify it under the terms of the GNU Lesser General Public | |
| 6 | + * License as published by the Free Software Foundation; either | |
| 7 | + * version 2.1 of the License, or (at your option) any later version. | |
| 8 | + * | |
| 9 | + * FFmpeg is distributed in the hope that it will be useful, | |
| 10 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | + * Lesser General Public License for more details. | |
| 13 | + * | |
| 14 | + * You should have received a copy of the GNU Lesser General Public | |
| 15 | + * License along with FFmpeg; if not, write to the Free Software | |
| 16 | + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | + */ | |
| 18 | + | |
| 19 | +#include "libavutil/log.h" | |
| 20 | +#include <libavfilter/metal/utils.h> | |
| 21 | + | |
| 22 | +void ff_metal_compute_encoder_dispatch(id<MTLDevice> device, | |
| 23 | + id<MTLComputePipelineState> pipeline, | |
| 24 | + id<MTLComputeCommandEncoder> encoder, | |
| 25 | + NSUInteger width, NSUInteger height) | |
| 26 | +{ | |
| 27 | + [encoder setComputePipelineState:pipeline]; | |
| 28 | + NSUInteger w = pipeline.threadExecutionWidth; | |
| 29 | + NSUInteger h = pipeline.maxTotalThreadsPerThreadgroup / w; | |
| 30 | + MTLSize threadsPerThreadgroup = MTLSizeMake(w, h, 1); | |
| 31 | + BOOL fallback = YES; | |
| 32 | + if (@available(macOS 10.15, iOS 11, tvOS 14.5, *)) { | |
| 33 | + if ([device supportsFamily:MTLGPUFamilyCommon3]) { | |
| 34 | + MTLSize threadsPerGrid = MTLSizeMake(width, height, 1); | |
| 35 | + [encoder dispatchThreads:threadsPerGrid threadsPerThreadgroup:threadsPerThreadgroup]; | |
| 36 | + fallback = NO; | |
| 37 | + } | |
| 38 | + } | |
| 39 | + if (fallback) { | |
| 40 | + MTLSize threadgroups = MTLSizeMake((width + w - 1) / w, | |
| 41 | + (height + h - 1) / h, | |
| 42 | + 1); | |
| 43 | + [encoder dispatchThreadgroups:threadgroups threadsPerThreadgroup:threadsPerThreadgroup]; | |
| 44 | + } | |
| 45 | +} | |
| 46 | + | |
| 47 | +CVMetalTextureRef ff_metal_texture_from_pixbuf(void *ctx, | |
| 48 | + CVMetalTextureCacheRef textureCache, | |
| 49 | + CVPixelBufferRef pixbuf, | |
| 50 | + int plane, | |
| 51 | + MTLPixelFormat format) | |
| 52 | +{ | |
| 53 | + CVMetalTextureRef tex = NULL; | |
| 54 | + CVReturn ret; | |
| 55 | + | |
| 56 | + ret = CVMetalTextureCacheCreateTextureFromImage( | |
| 57 | + NULL, | |
| 58 | + textureCache, | |
| 59 | + pixbuf, | |
| 60 | + NULL, | |
| 61 | + format, | |
| 62 | + CVPixelBufferGetWidthOfPlane(pixbuf, plane), | |
| 63 | + CVPixelBufferGetHeightOfPlane(pixbuf, plane), | |
| 64 | + plane, | |
| 65 | + &tex | |
| 66 | + ); | |
| 67 | + if (ret != kCVReturnSuccess) { | |
| 68 | + av_log(ctx, AV_LOG_ERROR, "Failed to create CVMetalTexture from image: %d\n", ret); | |
| 69 | + return NULL; | |
| 70 | + } | |
| 71 | + | |
| 72 | + return tex; | |
| 73 | +} | |