Mike-Solar
225f8505c2
- Extract libolive-rendercore static library to minimize backend link boundary. - Add DynamicRenderer adapter with C ABI (oakgl/oakvulkan shared libs). - Make OAK_ENABLE_DYNAMIC_RENDER_BACKEND default ON with OpenGL fallback. - Implement VulkanRenderer prototype (textures, shaders, UBO blit, readback). - Add backend-neutral viewer readback path (offscreen -> QImage -> QPainter). - Refactor PluginRenderer to be renderer-agnostic; OFX plugins fall back to CPU path on non-OpenGL backends while preserving OpenGL render path. - Add Renderer::AttachOutputTexture/DetachOutputTexture and C ABI forwards. - Update docs/zh/render-backend-dynamic-plan.md for Phase 3/4/5.
92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 Olive Team
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Modifications Copyright (C) 2025 mikesolar
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef FFMPEGABSTRACTION_H
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#define FFMPEGABSTRACTION_H
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extern "C" {
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#include <libswscale/swscale.h>
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}
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#include <olive/core/core.h>
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#include "common/avframeptr.h"
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#include "render/videoparams.h"
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namespace olive
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{
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using namespace core;
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class FFmpegUtils {
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public:
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/**
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* @brief Returns an AVPixelFormat that can be used to convert a frame to a data type Olive supports with minimal data loss
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*/
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static AVPixelFormat
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GetCompatiblePixelFormat(const AVPixelFormat &pix_fmt,
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PixelFormat maximum = PixelFormat::INVALID);
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/**
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* @brief Returns a native pixel format that can be used to convert from a native frame to an AVFrame with minimal data loss
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*/
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static PixelFormat GetCompatiblePixelFormat(const PixelFormat &pix_fmt);
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/**
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* @brief Returns an FFmpeg pixel format for a given native pixel format
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*/
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static AVPixelFormat GetFFmpegPixelFormat(const PixelFormat &pix_fmt,
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int channel_layout);
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/**
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* @brief Returns a native sample format type for a given AVSampleFormat
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*/
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static SampleFormat GetNativeSampleFormat(const AVSampleFormat &smp_fmt);
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/**
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* @brief Returns an FFmpeg sample format type for a given native type
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*/
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static AVSampleFormat GetFFmpegSampleFormat(const SampleFormat &smp_fmt);
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/**
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* @brief Returns an SWS_CS_* macro from an AVColorSpace enum member
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*
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* Why aren't these the same thing anyway? And for that matter, why doesn't FFmpeg provide a
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* convenience function to do this conversion for us? Who knows, but here we are.
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*/
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static int GetSwsColorspaceFromAVColorSpace(AVColorSpace cs);
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/**
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* @brief Convert "JPEG"/full-range colorspace to its regular counterpart
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*
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* "JPEG "spaces are deprecated in favor of the regular space and setting `color_range`. For the
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* time being, FFmpeg still uses these JPEG spaces, so for simplicity (since we *are* color_range
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* aware), we use this function.
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*/
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static AVPixelFormat ConvertJPEGSpaceToRegularSpace(AVPixelFormat f);
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};
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}
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#endif // FFMPEGABSTRACTION_H
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