修复msvc下无法正确获取拓展名的问题, 修复视频文件结束后任然解码的问题, 添加CMake Window下编译
This commit is contained in:
parent
3697de0b4a
commit
5cc0de59d5
2
.gitignore
vendored
2
.gitignore
vendored
@ -1,3 +1,5 @@
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/build/*
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.cache/*
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.vscode/*
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/.vs
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/CMakeSettings.json
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@ -6,14 +6,16 @@ set(CMAKE_CXX_STANDARD 20)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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include_directories(${PROJECT_SOURCE_DIR}/include)
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file(GLOB_RECURSE srcs ${PROJECT_SOURCE_DIR}/src/*.cc)
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find_package(SDL2 REQUIRED)
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IF(UNIX)
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include_directories(/usr/include/x86_64-linux-gnu)
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set(GLAD_DIR /home/jie/documents/third/glad)
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set(GLM_DIR /home/jie/documents/third/glm)
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include_directories(${GLAD_DIR}/include)
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include_directories(${GLM_DIR})
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include_directories(${PROJECT_SOURCE_DIR}/include)
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find_package(SDL2 REQUIRED)
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file(GLOB_RECURSE srcs ${PROJECT_SOURCE_DIR}/src/*.cc)
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add_executable(${PROJECT_N}
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main.cc
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${GLAD_DIR}/src/glad.c
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@ -28,3 +30,47 @@ target_link_libraries(${PROJECT_N}
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vorbis
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avutil
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)
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ELSE(WIN32)
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set(CMAKE_PREFIX_PATH C:/document/lib/)
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set(THIRD_LIB_DIR C:/document/lib/)
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#vcpkg
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set(VCPKG_PACKAGE C:/document/lib/vcpkg/packages)
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set(VCPKG_BUILDTREES_DIR C:/document/lib/vcpkg/buildtrees)
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set(VCPKG_INSTALLED C:/document/lib/vcpkg/installed/x64-windows)
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#opengl
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find_package(OpenGL)
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#SDL2
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find_package(SDL2_image)
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#rangev3
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include_directories(${VCPKG_PACKAGE}/range-v3_x64-windows/include)
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#ffmpeg
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include_directories(${VCPKG_PACKAGE}/ffmpeg_x64-windows/include)
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file(GLOB_RECURSE FFMPEG_LIBS ${VCPKG_PACKAGE}/ffmpeg_x64-windows/debug/lib/*.lib)
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#glad
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include_directories(${THIRD_LIB_DIR}/glad/include)
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set(GLAD_SRCS ${THIRD_LIB_DIR}/glad/src/glad.c)
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#glm
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include_directories(${THIRD_LIB_DIR}/glm)
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#opencv
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include_directories(${THIRD_LIB_DIR}/opencv/opencv/build/include)
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link_directories(E:/dependency/lib)
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set(OpenCV_LIBS
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opencv_world460d.lib
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)
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add_executable(${PROJECT_N}
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${srcs}
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main.cc
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${GLAD_SRCS}
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)
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target_include_directories(${PROJECT_N} PUBLIC include)
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target_link_libraries(${PROJECT_N}
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${SDL2_LIBRARIES}
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${FFMPEG_LIBS}
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${OpenCV_LIBS}
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OpenGL32
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)
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ENDIF()
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@ -1,25 +1,18 @@
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#ifndef DECODER_H
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#define DECODER_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 "libavutil/imgutils.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 "libavutil/imgutils.h"
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}
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struct DecoderParam{
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AVFormatContext* fmtCtx;
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AVCodecContext* codecCtx;
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int width;
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int height;
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int videoStreamIndex;
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struct DecoderParam {
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AVFormatContext* fmtCtx;
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AVCodecContext* codecCtx;
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int width;
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int height;
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int videoStreamIndex;
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};
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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 "libavutil/imgutils.h"
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}
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void InitDecoder(const char* filepath, DecoderParam& param);
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AVFrame* RequestFrame(DecoderParam& param);
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#endif
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105
include/util.h
105
include/util.h
@ -6,70 +6,69 @@
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#include <string>
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#include <array>
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#include <cstring>
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enum class FileType{
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MUSIC,
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VIDEO,
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IMG,
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ERRORTYPE
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#include <string_view>
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enum class FileType {
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MUSIC,
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VIDEO,
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IMG,
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ERRORTYPE
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};
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const std::array MusicFileExtensive = {
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"mp3"
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const std::array<std::string_view, 1> MusicFileExtensive = {
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"mp3"
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};
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const std::array VideoFileExtensive = {
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"mp4"
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const std::array<std::string_view, 1> VideoFileExtensive = {
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"mp4"
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};
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const std::array ImgFileExtensive = {
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"jpeg",
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"jpg",
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"png",
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const std::array<std::string_view, 3> ImgFileExtensive = {
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"jpeg",
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"jpg",
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"png",
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};
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using namespace std::filesystem;
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class Util{
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class Util {
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private:
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static const char* GetFileExtensive(path filepath){
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std::string ext = filepath.extension().string();
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ext.erase(std::remove_if(ext.begin(), ext.end(), [](char c){return c=='.';}), ext.end());
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return ext.c_str();
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}
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static bool IsMusic(path filepath){
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const auto ext = GetFileExtensive(filepath);
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for(const auto& it : MusicFileExtensive){
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if(std::strcmp(it, ext) == 0)
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return true;
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}
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return false;
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}
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static bool IsVideo(path filepath){
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const auto ext = GetFileExtensive(filepath);
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for(const auto& it : VideoFileExtensive){
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if(std::strcmp(it, ext) == 0)
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return true;
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}
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return false;
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}
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static bool IsImg(path filepath){
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const auto ext = GetFileExtensive(filepath);
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for(const auto& it : ImgFileExtensive){
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if(std::strcmp(it, ext) == 0)
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return true;
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}
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return false;
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}
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static std::string_view GetFileExtensive(const path& filepath) {
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static std::string ext = filepath.extension().string();
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ext.erase(std::ranges::remove_if(ext, [](char c) {return c == '.'; }).begin(), ext.end());
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return std::string_view{ ext.c_str() };
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}
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static bool IsMusic(const path& filepath) {
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const auto ext = GetFileExtensive(filepath);
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for (const auto& it : MusicFileExtensive) {
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if (it == ext)
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return true;
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}
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return false;
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}
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static bool IsVideo(const path& filepath) {
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const auto ext = GetFileExtensive(filepath);
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for (const auto& it : VideoFileExtensive) {
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if (it == ext)
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return true;
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}
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return false;
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}
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static bool IsImg(const path& filepath) {
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const auto ext = GetFileExtensive(filepath);
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for (const auto& it : ImgFileExtensive) {
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if (it == ext)
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return true;
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}
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return false;
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}
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public:
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static FileType GetFileType(path filepath){
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if(IsMusic(filepath)) return FileType::MUSIC;
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if(IsVideo(filepath)) return FileType::VIDEO;
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if(IsImg(filepath)) return FileType::IMG;
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return FileType::ERRORTYPE;
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}
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static FileType GetFileType(const path& filepath) {
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if (IsMusic(filepath)) return FileType::MUSIC;
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if (IsVideo(filepath)) return FileType::VIDEO;
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if (IsImg(filepath)) return FileType::IMG;
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return FileType::ERRORTYPE;
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}
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};
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#endif
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371
main.cc
371
main.cc
@ -1,7 +1,6 @@
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#include <iostream>
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#include <thread>
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#include <SDL2/SDL.h>
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#include <SDL2/SDL_image.h>
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#include <filesystem>
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#include "util.h"
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@ -12,212 +11,210 @@ using std::cout, std::endl;
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struct OpenglVideoParam
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{
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SDL_GLContext glContext;
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unsigned int VAO, VBO, EBO;
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unsigned int texs[3];
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SDL_GLContext glContext;
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unsigned int VAO, VBO, EBO;
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unsigned int texs[3];
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};
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int InitVideo(SDL_Window *&window, const char *targetFilepath, DecoderParam &decoderParam, OpenglVideoParam &openglVideoParam, ShaderService *&shaderService)
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int InitVideo(SDL_Window*& window, const char* targetFilepath, DecoderParam& decoderParam, OpenglVideoParam& openglVideoParam, ShaderService*& shaderService)
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{
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InitDecoder(targetFilepath, decoderParam);
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int client_width = decoderParam.width / 2;
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int client_height = decoderParam.height / 2;
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window = SDL_CreateWindow(
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"MP",
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SDL_WINDOWPOS_UNDEFINED,
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SDL_WINDOWPOS_UNDEFINED,
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client_width,
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client_height,
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SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL);
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if (!window)
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{
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cout << SDL_GetError() << "\n";
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return -1;
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}
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
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InitDecoder(targetFilepath, decoderParam);
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const int client_width = decoderParam.width / 2;
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const int client_height = decoderParam.height / 2;
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window = SDL_CreateWindow(
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"MP",
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SDL_WINDOWPOS_UNDEFINED,
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SDL_WINDOWPOS_UNDEFINED,
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client_width,
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client_height,
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SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL);
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if (!window)
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{
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cout << SDL_GetError() << "\n";
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return -1;
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}
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
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openglVideoParam.glContext = SDL_GL_CreateContext(window);
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if (!openglVideoParam.glContext)
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{
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cout << SDL_GetError() << "\n";
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return -1;
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}
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openglVideoParam.glContext = SDL_GL_CreateContext(window);
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if (!openglVideoParam.glContext)
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{
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cout << SDL_GetError() << "\n";
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return -1;
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}
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if (!gladLoadGLLoader((GLADloadproc)SDL_GL_GetProcAddress))
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{
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auto error = glad_glGetError();
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return static_cast<int>(error);
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}
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if (!gladLoadGLLoader((GLADloadproc)SDL_GL_GetProcAddress))
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{
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auto error = glad_glGetError();
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return static_cast<int>(error);
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}
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float vertices[] = {
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1.f, 1.f, 0.0, 1.0, 0.0,
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1.f, -1.f, 0.0, 1.0, 1.0,
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-1.f, -1.f, 0.0, 0.0, 1.0,
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-1.f, 1.f, 0.0, 0.0, 0.0};
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unsigned int indices[]{
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0,
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1,
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3,
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1,
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2,
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3,
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};
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float vertices[] = {
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1.f, 1.f, 0.0, 1.0, 0.0,
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1.f, -1.f, 0.0, 1.0, 1.0,
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-1.f, -1.f, 0.0, 0.0, 1.0,
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-1.f, 1.f, 0.0, 0.0, 0.0 };
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unsigned int indices[]{
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0,
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1,
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3,
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1,
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2,
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3,
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};
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glGenVertexArrays(1, &openglVideoParam.VAO);
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glGenBuffers(1, &openglVideoParam.VBO);
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glGenBuffers(1, &openglVideoParam.EBO);
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glBindVertexArray(openglVideoParam.VAO);
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glBindBuffer(GL_ARRAY_BUFFER, openglVideoParam.VBO);
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glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, openglVideoParam.EBO);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
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glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), 0);
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glEnableVertexAttribArray(0);
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glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void *)(3 * sizeof(float)));
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glEnableVertexAttribArray(1);
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glGenTextures(3, openglVideoParam.texs);
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for (int i = 0; i < 3; i++)
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{
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glBindTexture(GL_TEXTURE_2D, openglVideoParam.texs[i]);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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}
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glGenVertexArrays(1, &openglVideoParam.VAO);
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glGenBuffers(1, &openglVideoParam.VBO);
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glGenBuffers(1, &openglVideoParam.EBO);
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glBindVertexArray(openglVideoParam.VAO);
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glBindBuffer(GL_ARRAY_BUFFER, openglVideoParam.VBO);
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glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, openglVideoParam.EBO);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
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glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), 0);
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glEnableVertexAttribArray(0);
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glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(3 * sizeof(float)));
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glEnableVertexAttribArray(1);
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glGenTextures(3, openglVideoParam.texs);
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for (int i = 0; i < 3; i++)
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{
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glBindTexture(GL_TEXTURE_2D, openglVideoParam.texs[i]);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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}
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shaderService = new ShaderService{vSource.data(), fSource.data()};
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shaderService->Use();
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shaderService->SetUniform<int>("textureY", 0);
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shaderService->SetUniform<int>("textureU", 1);
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shaderService->SetUniform<int>("textureV", 2);
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return 0;
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shaderService = new ShaderService{ vSource.data(), fSource.data() };
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shaderService->Use();
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shaderService->SetUniform<int>("textureY", 0);
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shaderService->SetUniform<int>("textureU", 1);
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shaderService->SetUniform<int>("textureV", 2);
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return 0;
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}
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void OpenglRender(DecoderParam &decoderParam, OpenglVideoParam &openglVideoParam, ShaderService *shaderService)
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void OpenglRender(DecoderParam& decoderParam, const OpenglVideoParam& openglVideoParam, ShaderService* shaderService)
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{
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auto frame = RequestFrame(decoderParam);
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if(frame == nullptr)
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return;
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int64_t pts = frame->pts;
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static bool first_frame = true;
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// TODO: TIMER
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glBindTexture(GL_TEXTURE_2D, openglVideoParam.texs[0]);
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glPixelStoref(GL_UNPACK_ROW_LENGTH, frame->linesize[0]);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, frame->width, frame->height, 0, GL_RED, GL_UNSIGNED_BYTE, frame->data[0]);
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auto frame = RequestFrame(decoderParam);
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if (frame == nullptr)
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return;
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// TODO: TIMER
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glBindTexture(GL_TEXTURE_2D, openglVideoParam.texs[0]);
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glPixelStoref(GL_UNPACK_ROW_LENGTH, frame->linesize[0]);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, frame->width, frame->height, 0, GL_RED, GL_UNSIGNED_BYTE, frame->data[0]);
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glActiveTexture(GL_TEXTURE1);
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glBindTexture(GL_TEXTURE_2D, openglVideoParam.texs[1]);
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glPixelStoref(GL_UNPACK_ROW_LENGTH, frame->linesize[1]);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, frame->width / 2, frame->height / 2, 0, GL_RED, GL_UNSIGNED_BYTE, frame->data[1]);
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glActiveTexture(GL_TEXTURE1);
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glBindTexture(GL_TEXTURE_2D, openglVideoParam.texs[1]);
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glPixelStoref(GL_UNPACK_ROW_LENGTH, frame->linesize[1]);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, frame->width / 2, frame->height / 2, 0, GL_RED, GL_UNSIGNED_BYTE, frame->data[1]);
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||||
|
||||
glActiveTexture(GL_TEXTURE2);
|
||||
glBindTexture(GL_TEXTURE_2D, openglVideoParam.texs[2]);
|
||||
glPixelStoref(GL_UNPACK_ROW_LENGTH, frame->linesize[2]);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, frame->width / 2, frame->height / 2, 0, GL_RED, GL_UNSIGNED_BYTE, frame->data[2]);
|
||||
glActiveTexture(GL_TEXTURE2);
|
||||
glBindTexture(GL_TEXTURE_2D, openglVideoParam.texs[2]);
|
||||
glPixelStoref(GL_UNPACK_ROW_LENGTH, frame->linesize[2]);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, frame->width / 2, frame->height / 2, 0, GL_RED, GL_UNSIGNED_BYTE, frame->data[2]);
|
||||
|
||||
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
||||
av_frame_free(&frame);
|
||||
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
||||
|
||||
shaderService->Use();
|
||||
glBindVertexArray(openglVideoParam.VAO);
|
||||
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
|
||||
av_frame_free(&frame);
|
||||
shaderService->Use();
|
||||
glBindVertexArray(openglVideoParam.VAO);
|
||||
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
|
||||
}
|
||||
|
||||
int main(int argc, char **const argv)
|
||||
int main(int argc, char** const argv)
|
||||
{
|
||||
// Check File
|
||||
const char *targetFilepath = argv[1];
|
||||
if (targetFilepath == nullptr || !std::filesystem::exists(targetFilepath))
|
||||
{
|
||||
cout << "File Not Exist\n";
|
||||
return 0;
|
||||
}
|
||||
const FileType fileType = Util::GetFileType(targetFilepath);
|
||||
if (fileType == FileType::ERRORTYPE)
|
||||
{
|
||||
cout << "unsupport file type\n";
|
||||
return 0;
|
||||
}
|
||||
// Check File
|
||||
const char* targetFilepath = argv[1];
|
||||
if (targetFilepath == nullptr || !std::filesystem::exists(targetFilepath))
|
||||
{
|
||||
cout << "File Not Exist\n";
|
||||
return 0;
|
||||
}
|
||||
const FileType fileType = Util::GetFileType(targetFilepath);
|
||||
if (fileType == FileType::ERRORTYPE)
|
||||
{
|
||||
cout << "unsupport file type\n";
|
||||
return 0;
|
||||
}
|
||||
|
||||
// INIT
|
||||
// INIT
|
||||
|
||||
int client_width, client_height;
|
||||
SDL_Window *window = nullptr;
|
||||
DecoderParam decoderParam{};
|
||||
OpenglVideoParam openglVideoParam{};
|
||||
ShaderService *shaderService = nullptr;
|
||||
double framerate = .0f;
|
||||
if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
|
||||
{
|
||||
cout << SDL_GetError() << "\n";
|
||||
return -1;
|
||||
}
|
||||
switch (fileType)
|
||||
{
|
||||
case FileType::VIDEO:
|
||||
{
|
||||
InitVideo(window, targetFilepath, decoderParam, openglVideoParam, shaderService);
|
||||
auto& time_base = decoderParam.fmtCtx->streams[decoderParam.videoStreamIndex]->time_base;
|
||||
framerate = (double)time_base.num / time_base.den;
|
||||
break;
|
||||
}
|
||||
case FileType::IMG:
|
||||
{
|
||||
break;
|
||||
}
|
||||
case FileType::MUSIC:
|
||||
{
|
||||
break;
|
||||
}
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
int client_width, client_height;
|
||||
SDL_Window* window = nullptr;
|
||||
DecoderParam decoderParam{};
|
||||
OpenglVideoParam openglVideoParam{};
|
||||
ShaderService* shaderService = nullptr;
|
||||
double framerate = .0f;
|
||||
if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
|
||||
{
|
||||
cout << SDL_GetError() << "\n";
|
||||
return -1;
|
||||
}
|
||||
switch (fileType)
|
||||
{
|
||||
case FileType::VIDEO:
|
||||
{
|
||||
InitVideo(window, targetFilepath, decoderParam, openglVideoParam, shaderService);
|
||||
auto& time_base = decoderParam.fmtCtx->streams[decoderParam.videoStreamIndex]->time_base;
|
||||
framerate = (double)time_base.num / time_base.den;
|
||||
break;
|
||||
}
|
||||
case FileType::IMG:
|
||||
{
|
||||
break;
|
||||
}
|
||||
case FileType::MUSIC:
|
||||
{
|
||||
break;
|
||||
}
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
|
||||
bool quit = false;
|
||||
auto current_time = std::chrono::system_clock::now();
|
||||
SDL_Event event;
|
||||
while (!quit)
|
||||
{
|
||||
while (SDL_PollEvent(&event))
|
||||
{
|
||||
switch (event.type)
|
||||
{
|
||||
case SDL_KEYDOWN:
|
||||
switch (event.key.keysym.scancode)
|
||||
{
|
||||
case SDL_SCANCODE_ESCAPE:
|
||||
return -1;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case SDL_QUIT:
|
||||
return -1;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
bool quit = false;
|
||||
auto current_time = std::chrono::system_clock::now();
|
||||
SDL_Event event;
|
||||
while (!quit)
|
||||
{
|
||||
while (SDL_PollEvent(&event))
|
||||
{
|
||||
switch (event.type)
|
||||
{
|
||||
case SDL_KEYDOWN:
|
||||
switch (event.key.keysym.scancode)
|
||||
{
|
||||
case SDL_SCANCODE_ESCAPE:
|
||||
return -1;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case SDL_QUIT:
|
||||
return -1;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Render
|
||||
switch (fileType)
|
||||
{
|
||||
case FileType::VIDEO:
|
||||
OpenglRender(decoderParam, openglVideoParam, shaderService);
|
||||
SDL_GL_SwapWindow(window);
|
||||
std::this_thread::sleep_until(current_time + std::chrono::milliseconds((int)(framerate * 1000)));
|
||||
current_time = std::chrono::system_clock::now();
|
||||
break;
|
||||
// Render
|
||||
switch (fileType)
|
||||
{
|
||||
case FileType::VIDEO:
|
||||
OpenglRender(decoderParam, openglVideoParam, shaderService);
|
||||
SDL_GL_SwapWindow(window);
|
||||
std::this_thread::sleep_until(current_time + std::chrono::milliseconds((int)(framerate * 1000)));
|
||||
current_time = std::chrono::system_clock::now();
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
avcodec_close(decoderParam.codecCtx);
|
||||
avformat_close_input(&(decoderParam.fmtCtx));
|
||||
SDL_GL_DeleteContext(openglVideoParam.glContext);
|
||||
SDL_DestroyWindow(window);
|
||||
SDL_Quit();
|
||||
return 0;
|
||||
}
|
||||
avcodec_close(decoderParam.codecCtx);
|
||||
avformat_close_input(&(decoderParam.fmtCtx));
|
||||
SDL_GL_DeleteContext(openglVideoParam.glContext);
|
||||
SDL_DestroyWindow(window);
|
||||
SDL_Quit();
|
||||
return 0;
|
||||
}
|
||||
@ -1,52 +1,59 @@
|
||||
#include "decoder.h"
|
||||
|
||||
void InitDecoder(const char* filepath, DecoderParam& param){
|
||||
AVFormatContext* fmtCtx = nullptr;
|
||||
AVCodecContext* codecFmt = nullptr;
|
||||
auto ret = avformat_open_input(&fmtCtx, filepath, NULL, NULL);
|
||||
avformat_find_stream_info(fmtCtx, nullptr);
|
||||
void InitDecoder(const char* filepath, DecoderParam& param) {
|
||||
AVFormatContext* fmtCtx = nullptr;
|
||||
AVCodecContext* codecFmt = nullptr;
|
||||
auto ret = avformat_open_input(&fmtCtx, filepath, NULL, NULL);
|
||||
avformat_find_stream_info(fmtCtx, nullptr);
|
||||
|
||||
for(int i=0; i<fmtCtx->nb_streams; i++){
|
||||
auto stream = fmtCtx->streams[i];
|
||||
auto codec = avcodec_find_decoder(stream->codecpar->codec_id);
|
||||
if(codec->type == AVMEDIA_TYPE_VIDEO){
|
||||
param.videoStreamIndex = i;
|
||||
codecFmt = avcodec_alloc_context3(codec);
|
||||
avcodec_parameters_to_context(codecFmt, stream->codecpar);
|
||||
avcodec_open2(codecFmt, codec, nullptr);
|
||||
}
|
||||
}
|
||||
for (int i = 0; i < fmtCtx->nb_streams; i++) {
|
||||
const auto stream = fmtCtx->streams[i];
|
||||
const auto codec = avcodec_find_decoder(stream->codecpar->codec_id);
|
||||
if (codec->type == AVMEDIA_TYPE_VIDEO) {
|
||||
param.videoStreamIndex = i;
|
||||
codecFmt = avcodec_alloc_context3(codec);
|
||||
avcodec_parameters_to_context(codecFmt, stream->codecpar);
|
||||
avcodec_open2(codecFmt, codec, nullptr);
|
||||
}
|
||||
}
|
||||
|
||||
param.codecCtx = codecFmt;
|
||||
param.fmtCtx = fmtCtx;
|
||||
param.width = codecFmt->width;
|
||||
param.height = codecFmt->height;
|
||||
param.codecCtx = codecFmt;
|
||||
param.fmtCtx = fmtCtx;
|
||||
param.width = codecFmt->width;
|
||||
param.height = codecFmt->height;
|
||||
}
|
||||
|
||||
AVFrame* RequestFrame(DecoderParam& param){
|
||||
auto& fmtCtx = param.fmtCtx;
|
||||
auto& codecCtx = param.codecCtx;
|
||||
auto& videoStreamIndex = param.videoStreamIndex;
|
||||
AVFrame* RequestFrame(DecoderParam& param) {
|
||||
const auto& fmtCtx = param.fmtCtx;
|
||||
const auto& codecCtx = param.codecCtx;
|
||||
const auto& videoStreamIndex = param.videoStreamIndex;
|
||||
|
||||
while(true){
|
||||
AVPacket* packet = av_packet_alloc();
|
||||
int ret = av_read_frame(fmtCtx, packet);
|
||||
if(ret == 0 && packet->stream_index == videoStreamIndex){
|
||||
ret = avcodec_send_packet(codecCtx, packet);
|
||||
if(ret == 0){
|
||||
AVFrame* frame = av_frame_alloc();
|
||||
ret = avcodec_receive_frame(codecCtx, frame);
|
||||
if(ret == 0){
|
||||
av_packet_unref(packet);
|
||||
return frame;
|
||||
}else if(ret == AVERROR(EAGAIN)){
|
||||
av_frame_unref(frame);
|
||||
}else{
|
||||
return nullptr;
|
||||
}
|
||||
}
|
||||
}
|
||||
av_packet_unref(packet);
|
||||
}
|
||||
return nullptr;
|
||||
}
|
||||
AVPacket* packet = av_packet_alloc();
|
||||
AVFrame* frame = av_frame_alloc();
|
||||
|
||||
while (true) {
|
||||
int ret = av_read_frame(fmtCtx, packet);
|
||||
if (ret == 0 && packet->stream_index == videoStreamIndex) {
|
||||
ret = avcodec_send_packet(codecCtx, packet);
|
||||
if (ret == 0) {
|
||||
ret = avcodec_receive_frame(codecCtx, frame);
|
||||
if (ret == 0) {
|
||||
av_packet_unref(packet);
|
||||
return frame;
|
||||
}
|
||||
if (ret == AVERROR(EAGAIN)) {
|
||||
continue;
|
||||
}
|
||||
av_frame_free(&frame);
|
||||
av_packet_free(&packet);
|
||||
return nullptr;
|
||||
}
|
||||
}
|
||||
else if (ret == AVERROR_EOF)
|
||||
{
|
||||
av_packet_unref(packet);
|
||||
return nullptr;
|
||||
}
|
||||
av_packet_unref(packet);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user