From 95da5b26233403c053e842b8dd0a42ad5b7068f2 Mon Sep 17 00:00:00 2001
From: AryaFeng <1963708638@qq.com>
Date: Fri, 19 Jan 2024 08:11:46 +0000
Subject: [PATCH 1/5] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=20CMak?=
 =?UTF-8?q?eLists.txt?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 CMakeLists.txt | 20 --------------------
 1 file changed, 20 deletions(-)
 delete mode 100644 CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
deleted file mode 100644
index 795471d..0000000
--- a/CMakeLists.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-cmake_minimum_required(VERSION 3.24)
-project(ffmpeg_c)
-
-set(CMAKE_CXX_STANDARD 17)
-find_package(PkgConfig REQUIRED)
-pkg_check_modules(LIBAV REQUIRED IMPORTED_TARGET
-    libavdevice
-    libavfilter
-    libavformat
-    libavcodec
-    libswresample
-    libswscale
-    libavutil
-)
-
-include_directories(/home/feng/project/ffmpeg/ffmpeg-c-thread/include)
-include_directories( /home/feng/FFmpeg/include)
-add_executable(ffmpeg_c main.cpp  src/demux_thread.cpp src/packet_queue.cpp src/frame_queue.cpp)
-
-target_link_libraries(ffmpeg_c PkgConfig::LIBAV)
-- 
Gitee


From c97dce518207fb3b022872de31c14a1f5e1577ea Mon Sep 17 00:00:00 2001
From: AryaFeng <1963708638@qq.com>
Date: Fri, 19 Jan 2024 08:11:55 +0000
Subject: [PATCH 2/5] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=20.vsc?=
 =?UTF-8?q?ode?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .vscode/c_cpp_properties.json | 18 ------------------
 .vscode/settings.json         |  6 ------
 2 files changed, 24 deletions(-)
 delete mode 100644 .vscode/c_cpp_properties.json
 delete mode 100644 .vscode/settings.json

diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
deleted file mode 100644
index a3572bb..0000000
--- a/.vscode/c_cpp_properties.json
+++ /dev/null
@@ -1,18 +0,0 @@
-{
-    "configurations": [
-        {
-            "name": "Linux",
-            "includePath": [
-                "${default}",
-                "/home/feng/FFmpeg/include",
-                "/home/femg/project/ffmpeg/ffmpeg-c-thread/include"
-            ],
-            "defines": [],
-            "compilerPath": "/usr/bin/gcc",
-            "cStandard": "c17",
-            "cppStandard": "gnu++17",
-            "intelliSenseMode": "linux-gcc-x64"
-        }
-    ],
-    "version": 4
-}
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
deleted file mode 100644
index 6437b0d..0000000
--- a/.vscode/settings.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-    "files.associations": {
-        "*.md": "markdown",
-        "condition_variable": "cpp"
-    }
-}
\ No newline at end of file
-- 
Gitee


From 2bd2f5792d68ae223b4722ca46b10a5126f0b28c Mon Sep 17 00:00:00 2001
From: AryaFeng <1963708638@qq.com>
Date: Fri, 19 Jan 2024 08:12:01 +0000
Subject: [PATCH 3/5] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=20buil?=
 =?UTF-8?q?d?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 build/ffmpeg_c | Bin 68184 -> 0 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100755 build/ffmpeg_c

diff --git a/build/ffmpeg_c b/build/ffmpeg_c
deleted file mode 100755
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z*bVL<`lN9#>(GY2T_WNsZNl7V@rIGryrMoHSqd1BNm!#kiQAk_Miw3?h-Tr-@>xx>
zM%@07uh39STWag7E~>3!6uvEb5q*(Tu-8PIYmBU_6%A-Y!gx$lTJaD8zKrfDn4n<?
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zxPrU=zXMP22vWnOerKlXep$iYo+>Li1dZdBVOD+hyEbh{SU&^xNq^P8df(PcuAfar
z?Fwk0>Ek%i$;7I@`rVSv4@kyR?mx|cx|H6^kLWc|di&Pzp*$qm?SbW@s;}S#RCd&-
z2|?Ee@h{%c<h)cpg}nfk38(Z|@1q^NL2@WP6@Nf|U`Y0%_Oo4hRsRAPo_Oifq02=C
zJ-k5xqc<So835<tPwB7vbsTU?cgZRL9lKq^9@qR;?JC}r@WHG89@cQ0tAeX&{6Cz%
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-- 
Gitee


From 411a46456a90551c2e15cf5f2b2f3d6697a7b47f Mon Sep 17 00:00:00 2001
From: AryaFeng <1963708638@qq.com>
Date: Sat, 20 Jan 2024 20:33:31 +0800
Subject: [PATCH 4/5] =?UTF-8?q?=E5=AE=8C=E6=88=90=E4=BA=86=E6=8E=A5?=
 =?UTF-8?q?=E5=B0=81=E8=A3=85=E5=92=8C=E8=A7=A3=E7=A0=81=E7=BA=BF=E7=A8=8B?=
 =?UTF-8?q?=EF=BC=8C=E5=B9=B6=E9=87=87=E7=94=A8=E4=BA=8B=E5=85=88=E5=88=86?=
 =?UTF-8?q?=E9=85=8D=E5=A5=BD=E7=9A=84=E5=86=85=E5=AD=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 include/decode_thread.h  |  2 +-
 include/demux_thread.h   |  6 +++---
 include/frame_queue.h    |  9 ++++-----
 include/packet_queue.h   | 12 +++---------
 include/queue.h          | 35 ++++++++++++++-------------------
 include/swscale_thread.h | 15 ++++++++++++++
 main.cpp                 | 14 ++++++++++++--
 src/decode_thread.cpp    | 21 ++++++++++----------
 src/demux_thread.cpp     |  9 +++++----
 src/frame_queue.cpp      | 42 +++++++++++++++++++++++++---------------
 src/packet_queue.cpp     | 41 ++++++++++++++++++---------------------
 src/swscale_thread.cpp   |  1 +
 12 files changed, 114 insertions(+), 93 deletions(-)
 create mode 100644 include/swscale_thread.h
 create mode 100644 src/swscale_thread.cpp

diff --git a/include/decode_thread.h b/include/decode_thread.h
index d41e234..927ddd3 100644
--- a/include/decode_thread.h
+++ b/include/decode_thread.h
@@ -1,10 +1,10 @@
 #ifndef FFMPEG_DECODE_THREAD_H
 #define FFMPEG_DECODE_THREAD_H
 #include "frame_queue.h"
+#include "libavutil/frame.h"
 #include "log.h"
 #include "packet_queue.h"
 #include "thread"
-#include "libavutil/frame.h"
 
 extern "C" {
 #include "libavcodec/avcodec.h"
diff --git a/include/demux_thread.h b/include/demux_thread.h
index 0b10ba2..593e58d 100644
--- a/include/demux_thread.h
+++ b/include/demux_thread.h
@@ -1,7 +1,7 @@
 #ifndef FFMPEG_DEMUX_THREAD_H
 #define FFMPEG_DEMUX_THREAD_H
 #include "log.h"
-#include "packet_queue.h"
+#include "queue.h"
 #include "thread"
 extern "C" {
 #include "libavformat/avformat.h"
@@ -9,7 +9,7 @@ extern "C" {
 
 class DemuxThread {
 public:
-    DemuxThread(std::string inFile, PacketQueue* packetQ);
+    DemuxThread(std::string inFile, Queue<AVPacket*>* packetQ);
     ~DemuxThread();
     int Init(); // 初始化操作
     int Start(); // 启动线程
@@ -22,7 +22,7 @@ public:
 
 private:
     std::thread* thread_ = nullptr; // 线程
-    PacketQueue* packetQ_; // 存放解封装后的队列
+    Queue<AVPacket*>* packetQ_; // 存放解封装后的队列
     AVFormatContext* iFmtCtx_ = nullptr; // 解封装格式上下文
     int videoStreamIndex_ = -1; // 视频流索引
     char err_[256] = { 0 }; // 打印错误信息
diff --git a/include/frame_queue.h b/include/frame_queue.h
index 1bb4b26..f96ca76 100644
--- a/include/frame_queue.h
+++ b/include/frame_queue.h
@@ -1,16 +1,15 @@
 #ifndef FFMPEG_FRAME_QUEUE_H
 #define FFMPEG_FRAME_QUEUE_H
-#include "log.h"
 #include "queue.h"
 extern "C" {
 #include "libavcodec/avcodec.h"
 }
+
 class FrameQueue : public Queue<AVFrame*> {
 public:
-    FrameQueue(int max);
-    ~FrameQueue();
-    int Init();
-    void Push(AVFrame* frame);
+    int Init(int max) override;
+    void Push(AVFrame* pkt) override;
+    void Pop(AVFrame*& pkt) override;
 };
 
 #endif
\ No newline at end of file
diff --git a/include/packet_queue.h b/include/packet_queue.h
index cc40f2a..b3492bb 100644
--- a/include/packet_queue.h
+++ b/include/packet_queue.h
@@ -1,17 +1,11 @@
 #ifndef FFMPEG_PACKET_QUEUE_H
 #define FFMPEG_PACKET_QUEUE_H
-#include "log.h"
 #include "queue.h"
-extern "C" {
-#include "libavcodec/avcodec.h"
-}
-
 class PacketQueue : public Queue<AVPacket*> {
 public:
-    PacketQueue(int max);
-    ~PacketQueue();
-    // 重写Init()
-    int Init() override;
+    int Init(int max) override;
     void Push(AVPacket* pkt) override;
+    void Pop(AVPacket*& pkt) override;
 };
+
 #endif
\ No newline at end of file
diff --git a/include/queue.h b/include/queue.h
index ab128ae..65a0afd 100644
--- a/include/queue.h
+++ b/include/queue.h
@@ -1,18 +1,22 @@
 #ifndef FFMPEG_QUEUE_H
 #define FFMPEG_QUEUE_H
+#include "log.h"
 #include <condition_variable>
 #include <mutex>
 #include <queue>
-#include "log.h"
 #include <vector>
+extern "C" {
+#include "libavcodec/avcodec.h"
+}
 template <class T>
 class Queue {
 public:
     Queue();
-    virtual int Init() = 0; // 分配空间，由实现类进行完成
-    virtual void Push(T val) = 0; // 子类实现push操作，
+    ~Queue();
+    virtual int Init(int max) = 0; // 分配空间，由实现类进行完成
+    virtual void Push(T val) = 0;
+    virtual void Pop(T& val) = 0;
     int size();
-    T& Pop();
     bool isEmpty();
 
 public:
@@ -34,28 +38,19 @@ inline Queue<T>::Queue()
 }
 
 template <class T>
-inline int Queue<T>::size()
+inline Queue<T>::~Queue()
 {
-    std::unique_lock<std::mutex> lock(mtx_);
-    return size_;
+    max_ = 0;
+    front_ = 0;
+    rear_ = 0;
+    queue_.resize(0);
 }
 
 template <class T>
-inline T& Queue<T>::Pop()
+inline int Queue<T>::size()
 {
     std::unique_lock<std::mutex> lock(mtx_);
-    if (size_ == 0) {
-        // 表示队列是空的,等待唤醒
-        cond_.wait(lock, [this] {
-            return size_ != 0;
-        });
-    }
-    T& t = queue_[front_];
-    LOGI("front_ == %d",front_);
-    front_ = (front_ + 1) % max_; // 出队位置重新指定
-    size_--;
-    cond_.notify_one();
-    return t;
+    return size_;
 }
 
 template <class T>
diff --git a/include/swscale_thread.h b/include/swscale_thread.h
new file mode 100644
index 0000000..6e6bbbe
--- /dev/null
+++ b/include/swscale_thread.h
@@ -0,0 +1,15 @@
+#ifndef FFMPEG_SWSCALE_THREAD_H
+
+#define FFMPEG_SWSCALE_THREAD_H
+
+class SwscaleThread {
+    SwscaleThread();
+    ~SwscaleThread();
+    int Init(); // 初始化操作
+    int Start(); // 启动线程
+    void Stop(); // 停止线程
+    void Run(); // 具体线程执行的操作
+    bool isStop(); // 线程是否停止
+};
+
+#endif
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index 0f3d803..ff054c0 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,14 +1,24 @@
+#include "decode_thread.h"
 #include "demux_thread.h"
+#include "frame_queue.h"
 #include "log.h"
 #include "packet_queue.h"
+extern "C" {
+#include "libavcodec/avcodec.h"
+}
 
 int main()
 {
-    PacketQueue* packetQ = new PacketQueue(10);
+    PacketQueue* packetQ = new PacketQueue();
+    packetQ->Init(10); // 为队列分配内存
     std::string inFile = "/home/feng/project/ffmpeg/out.mp4";
     DemuxThread* d = new DemuxThread(inFile, packetQ);
     d->Init();
     d->Start();
-
+    FrameQueue* frameQ = new FrameQueue();
+    frameQ->Init(10);
+    DecodeThread* decode = new DecodeThread(packetQ, frameQ, 0);
+    decode->Init(d->GetVideoParams());
+    decode->Start();
     getchar();
 }
\ No newline at end of file
diff --git a/src/decode_thread.cpp b/src/decode_thread.cpp
index 0f69a01..617f81b 100644
--- a/src/decode_thread.cpp
+++ b/src/decode_thread.cpp
@@ -75,10 +75,13 @@ void DecodeThread::Stop()
 void DecodeThread::Run()
 {
     AVFrame* frame = av_frame_alloc();
+    AVPacket* packet = av_packet_alloc();
+    AVFrame* t = av_frame_alloc();
     LOGI("decode thread run start");
     int ret = 0, count = 0;
     while (!isStop()) {
-        AVPacket* packet = decodedPacketQueue_->Pop();
+        // 队列中拿一个
+        decodedPacketQueue_->Pop(packet);
         if (packet) {
             // LOGI("111");
             ret = avcodec_send_packet(decodeCodecCtx_, packet);
@@ -90,7 +93,6 @@ void DecodeThread::Run()
             }
             // 读取解码后的数据帧frame
             while (ret >= 0) {
-                LOGI("111");
                 ret = avcodec_receive_frame(decodeCodecCtx_, frame);
                 if (AVERROR(EAGAIN) == ret || ret == AVERROR_EOF) { // 表示还有帧要进行读取
                     break;
@@ -99,16 +101,13 @@ void DecodeThread::Run()
                     av_strerror(ret, err_, sizeof(err_));
                     LOGE("avcodec_receive_frame failed %s", err_);
                     break;
-                }else{
+                } else {
                     decodedFrameQueue_->Push(frame);
                     LOGI("解码帧数 %d", ++count);
-//                    // 测试：
-//                    AVFrame * t = decodedFrameQueue_->Pop();
-//                    av_frame_unref(t); // 释放掉这个
-                    break;
-
+                    // 这里需要释放帧，才能继续解码
+                    decodedFrameQueue_->Pop(t);
+                    av_frame_unref(t);
                 }
-
             }
             if (packet->stream_index == 5) {
                 // 表示可以到了末尾了,可以停止线程了
@@ -117,10 +116,10 @@ void DecodeThread::Run()
                 Stop();
                 break;
             }
-//            av_frame_unref(frame);
-            av_packet_unref(packet); // 需要彻底释放packet队列中的packet
+            av_packet_unref(packet);
         }
     }
+    av_packet_free(&packet);
     av_frame_free(&frame);
 }
 
diff --git a/src/demux_thread.cpp b/src/demux_thread.cpp
index b3dd54d..c4b4534 100644
--- a/src/demux_thread.cpp
+++ b/src/demux_thread.cpp
@@ -1,6 +1,6 @@
 #include "demux_thread.h"
 
-DemuxThread::DemuxThread(std::string inFile, PacketQueue* packetQ)
+DemuxThread::DemuxThread(std::string inFile, Queue<AVPacket*>* packetQ)
     : inFile_(inFile)
     , packetQ_(packetQ)
 {
@@ -72,6 +72,7 @@ void DemuxThread::Run()
     int ret = 0;
     AVPacket* packet = av_packet_alloc();
     AVPacket* tmp = nullptr;
+    AVPacket* t = av_packet_alloc();
     int count = 0;
     while (!isStop()) {
         ret = av_read_frame(iFmtCtx_, packet);
@@ -100,9 +101,9 @@ void DemuxThread::Run()
             // 放入队列
             packetQ_->Push(packet);
             LOGI("decodePacektQueue 插入：%d", ++count);
-//             // 测试使用 出队列
-//             AVPacket * t = packetQ_->Pop();
-//             av_packet_unref(t);
+            // 测试使用 出队列
+            // packetQ_->Pop(t);
+            // av_packet_unref(t);
         } else {
             // 释放其他非视频流的packet
             av_packet_unref(packet);
diff --git a/src/frame_queue.cpp b/src/frame_queue.cpp
index 6cc00a9..c9dba13 100644
--- a/src/frame_queue.cpp
+++ b/src/frame_queue.cpp
@@ -1,41 +1,51 @@
 #include "frame_queue.h"
 
-int FrameQueue::Init()
+int FrameQueue::Init(int max)
 {
+    max_ = max;
     queue_.resize(max_);
     for (int i = 0; i < max_; i++) {
-        AVFrame* frame = av_frame_alloc();
-        if (!frame) {
-            LOGE("frame queue init: av_frame_alloc failed");
+        AVFrame* packet = av_frame_alloc();
+        if (!packet) {
+            // 表示分配内存失败,释放所有的资源
+            for (int i = 0; i < max_; i++) {
+                if (queue_[i]) {
+                    av_frame_free(&queue_[i]);
+                }
+            }
             return -1;
         }
-        queue_[i] = frame;
+        queue_[i] = packet;
     }
     return 0;
 }
 
-FrameQueue::FrameQueue(int max)
-{
-    max_ = max;
-    Init();
-}
-
 void FrameQueue::Push(AVFrame* frame)
 {
     std::unique_lock<std::mutex> lock(mtx_);
     if (size_ == max_) {
         cond_.wait(lock, [this] {
-            return !size_ == max_;
+            return size_ != max_;
         });
     }
     av_frame_move_ref(queue_[rear_], frame);
-    rear_ = (rear_ + 1) % max_;
     size_++;
+    rear_ = (rear_ + 1) % max_;
     cond_.notify_one();
 }
 
-FrameQueue::~FrameQueue()
+void FrameQueue::Pop(AVFrame*& frame)
 {
-    // 调用父类的析构函数
-    Queue::~Queue();
+    std::unique_lock<std::mutex> lock(mtx_);
+    if (size_ == 0) {
+        // 表示队列是空的,等待唤醒
+        cond_.wait(lock, [this] {
+            return size_ != 0;
+        });
+    }
+    // 这里会将queue中的数据的引用置为0，因此无需调用unref
+    av_frame_move_ref(frame, queue_[front_]);
+    front_ = (front_ + 1) % max_; // 出队位置重新指定
+    size_--;
+    cond_.notify_one();
 }
diff --git a/src/packet_queue.cpp b/src/packet_queue.cpp
index e3f9f67..c79e61d 100644
--- a/src/packet_queue.cpp
+++ b/src/packet_queue.cpp
@@ -1,34 +1,18 @@
 #include "packet_queue.h"
 
-PacketQueue::PacketQueue(int max)
+int PacketQueue::Init(int max)
 {
-    LOGI("init start");
     max_ = max;
-    // 进行Init
-    Init();
-    LOGI("init finshed");
-}
-
-PacketQueue::~PacketQueue()
-{
-    // 调用父类的析构函数
-    Queue::~Queue();
-}
-
-int PacketQueue::Init()
-{
     queue_.resize(max_);
     for (int i = 0; i < max_; i++) {
         AVPacket* packet = av_packet_alloc();
         if (!packet) {
-            // 释放已经分配的内存
+            // 表示分配内存失败,释放所有的资源
             for (int i = 0; i < max_; i++) {
                 if (queue_[i]) {
                     av_packet_free(&queue_[i]);
-                    queue_[i] = nullptr;
                 }
             }
-            LOGE("packet queue init: av_packet_alloc failed");
             return -1;
         }
         queue_[i] = packet;
@@ -38,17 +22,30 @@ int PacketQueue::Init()
 
 void PacketQueue::Push(AVPacket* pkt)
 {
-    // 上锁
     std::unique_lock<std::mutex> lock(mtx_);
-    // 如果满了就等待
     if (size_ == max_) {
         cond_.wait(lock, [this] {
             return !(size_ == max_);
         });
     }
-    // 插入， 这里不进行流的类型判断
     av_packet_move_ref(queue_[rear_], pkt);
-    rear_ = (rear_ + 1) % max_;
     size_++;
+    rear_ = (rear_ + 1) % max_;
+    cond_.notify_one();
+}
+
+void PacketQueue::Pop(AVPacket*& pkt)
+{
+    std::unique_lock<std::mutex> lock(mtx_);
+    if (size_ == 0) {
+        // 表示队列是空的,等待唤醒
+        cond_.wait(lock, [this] {
+            return size_ != 0;
+        });
+    }
+    // 这里会将queue中的数据的引用置为0，因此无需调用unref
+    av_packet_move_ref(pkt, queue_[front_]);
+    front_ = (front_ + 1) % max_; // 出队位置重新指定
+    size_--;
     cond_.notify_one();
 }
diff --git a/src/swscale_thread.cpp b/src/swscale_thread.cpp
new file mode 100644
index 0000000..7ec0d81
--- /dev/null
+++ b/src/swscale_thread.cpp
@@ -0,0 +1 @@
+#include "swscale_thread.h"
\ No newline at end of file
-- 
Gitee


From 7e2713e52ccec0b4c764f981d7ae22e8f5c52181 Mon Sep 17 00:00:00 2001
From: AryaFeng <1963708638@qq.com>
Date: Sat, 20 Jan 2024 20:40:39 +0800
Subject: [PATCH 5/5] fsfds Merge branch 'v0.1' of
 https://gitee.com/AryaFeng/ffmpeg-c-thread into v0.1

---
 .vscode/c_cpp_properties.json | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 .vscode/c_cpp_properties.json

diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
new file mode 100644
index 0000000..4039bef
--- /dev/null
+++ b/.vscode/c_cpp_properties.json
@@ -0,0 +1,16 @@
+{
+    "configurations": [
+        {
+            "name": "Linux",
+            "includePath": [
+                "${workspaceFolder}/**"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/gcc",
+            "cStandard": "c17",
+            "cppStandard": "gnu++17",
+            "intelliSenseMode": "linux-gcc-x64"
+        }
+    ],
+    "version": 4
+}
\ No newline at end of file
-- 
Gitee