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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 | } | ||