cuda解码例子程序_cudaffmpeg解码资源-CSDN文库

共198个文件

h：64个

cpp：40个

sln：20个

cuda

coder

1星需积分: 49 159 浏览量 2017-12-21 17:03:06 上传评论 1 收藏 15.55MB RAR 举报

CUDA（Compute Unified Device Architecture）是由NVIDIA推出的一种并行计算平台和编程模型，它允许开发者使用C、C++、Fortran等语言直接编写GPU（图形处理器）代码，以充分利用GPU的并行处理能力。在本例中，“cuda 解码例子程序”是一个利用CUDA的编码库“parser coder”来实现GPU上的多媒体解码程序。 1. **CUDA基础知识**：CUDA的核心概念包括设备（Device）、上下文（Context）、内存类型（如全局内存、共享内存、常量内存、纹理内存）、流（Stream）和核函数（Kernel）。开发者需要理解这些基本概念，才能有效地利用CUDA进行编程。 2. **CUDA编程模型**：CUDA编程通过定义核函数来实现GPU计算。核函数是可以在多个线程上并行执行的函数，每个线程处理一部分数据。在多媒体解码中，可能需要定义特定的核函数来解析和解码数据块。 3. **CUDA内存管理**：在GPU解码过程中，需要将媒体数据从主机内存（Host Memory）复制到设备内存（Device Memory），解码后可能还需要反向传输。了解如何高效地管理内存传输，如使用cudaMemcpy函数，以及如何使用CUDA内存优化策略，如使用纹理内存或常量内存，可以提高性能。 4. **CUDA并行性**：CUDA支持多线程并行，可以创建大量的线程块和线程。在多媒体解码中，可以为每个像素或帧的每个宏块分配一个线程，实现大规模的并行解码。 5. **Parser Coder库**：Parser Coder库可能包含用于解析编码数据的工具和函数，如解码宏块、处理熵编码等。了解这个库的API和使用方法是实现CUDA解码程序的关键。通常，你需要学习如何初始化库，如何调用解码函数，以及如何处理解码后的数据。 6. **多媒体编解码原理**：在GPU上解码多媒体数据，需要对H.264、HEVC、VP9等主流视频编码标准有深入理解。例如，解码过程通常包括熵解码、运动补偿、去块效应滤波、逆变换等步骤。 7. **性能优化**：CUDA编程的一个重要方面是性能优化。这可能涉及到减少内存传输，利用共享内存，合理调度线程，以及使用流来异步执行任务，以最大化GPU的利用率。 8. **调试和错误处理**：CUDA程序的调试相对复杂，因为错误可能发生在主机和设备之间。理解如何使用cudaError_t检查错误，以及如何使用CUDA的可视化工具如Nsight等进行性能分析和调试，是开发过程中必不可少的技能。 9. **兼容性和硬件需求**：CUDA程序需要兼容特定的NVIDIA GPU硬件。确保你的硬件支持CUDA，并且知道如何查询和设置正确的计算能力（Compute Capability）。 10. **测试和验证**：完成解码程序后，需要对其进行详尽的测试，确保在不同输入和配置下都能正确工作。可以使用标准的测试序列和参考解码器的输出进行对比，以验证解码结果的准确性。通过以上这些知识点的学习和实践，你可以构建出一个基于CUDA的GPU多媒体解码程序。在Samples文件夹中，可能包含了各种示例代码和测试用例，可以帮助你更好地理解和应用这些概念。

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cuda 解码例子程序（198个子文件）

libGLEW.a 369KB

libGLEW.a 276KB

NvDecodeD3D9.cpp 60KB

NvEncoder.cpp 59KB

NvDecodeD3D11.cpp 58KB

NvHWEncoder.cpp 56KB

NvDecodeGL.cpp 53KB

NvEncoderPerf.cpp 31KB

NvEncoderLowLatency.cpp 27KB

dynlink_cuda.cpp 24KB

NvEncoderD3DInterop.cpp 24KB

NvEncoderCudaInterop.cpp 23KB

NvEncoderGLInterop.cpp 17KB

NvTranscoder.cpp 12KB

cudaModuleMgr.cpp 11KB

VideoDecoder.cpp 9KB

VideoDecoder.cpp 8KB

VideoEncoder.cpp 8KB

VideoSource.cpp 7KB

NvEncoderPreProcessor.cpp 7KB

dynlink_nvcuvid.cpp 7KB

ImageGL.cpp 7KB

ImageDX.cpp 7KB

ImageDX.cpp 6KB

cudaProcessFrame.cpp 6KB

dynlink_cudaD3D10.cpp 5KB

NvEncoderCommandParser.cpp 5KB

dynlink_cudaD3D9.cpp 5KB

FrameQueue.cpp 5KB

VideoParser.cpp 4KB

dynlink_cudaD3D11.cpp 4KB

NV12ToARGB_drvapi.cu 8KB

preproc.cu 3KB

preproc.cu 713B

glew.h 921KB

glext.h 675KB

nvEncodeAPI.h 189KB

dynlink_cuda_cuda.h 71KB

gl.h 69KB

glxew.h 68KB

wglew.h 62KB

dynlink_cuviddec.h 46KB

glxext.h 44KB

wglext.h 43KB

helper_cuda.h 29KB

dynlink_builtin_types.h 28KB

freeglut_std.h 27KB

dynlink_nvcuvid.h 21KB

glu.h 19KB

helper_cuda_drvapi.h 16KB

helper_timer.h 15KB

glx.h 14KB

dynlink_cudaD3D11.h 13KB

helper_string.h 12KB

drvapi_error_string.h 11KB

freeglut_ext.h 10KB

NvHWEncoder.h 10KB

dynlink_cudaD3D9.h 9KB

dynlink_cudaD3D10.h 8KB

NvEncoderLowLatency.h 7KB

dynlink_cudaGL.h 6KB

NvEncoder.h 6KB

VideoSource.h 5KB

NvEncoderPerf.h 5KB

exception.h 5KB

dynlink_cuda_d3d.h 5KB

nvFileIO.h 5KB

ImageGL.h 4KB

NvEncoderD3DInterop.h 4KB

NvEncoderCudaInterop.h 4KB

cudaModuleMgr.h 4KB

VideoParser.h 4KB

NvEncoderGLInterop.h 4KB

VideoEncoder.h 4KB

VideoParser.h 4KB

ImageDX.h 4KB

VideoParser.h 4KB

ImageDX.h 3KB

nvUtils.h 3KB

FrameQueue.h 3KB

VideoDecoder.h 3KB

cudaProcessFrame.h 2KB

共 198 条

Motion Vectors for input frame = 1, reference frame = 0 block, mb_type, partitionType, MV[0].x, MV[0].y, MV[1].x, MV[1].y, MV[2].x, MV[2].y, MV[3].x, MV[3].y, cost 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 4, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 5, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 6, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 7, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 8, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 10, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 11, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 12, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 13, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 14, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 15, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 16, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 17, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 18, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 19, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 20, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 21, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 22, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 23, 1, 0, 0, 0, 0, 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