新增读取h264文件转流媒体范例

api/include/mk_h264_splitter.h

+/*
+ * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
+ *
+ * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
+ *
+ * Use of this source code is governed by MIT license that can be found in the
+ * LICENSE file in the root of the source tree. All contributing project authors
+ * may be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef ZLMEDIAKIT_MK_H264_SPLITTER_H
+#define ZLMEDIAKIT_MK_H264_SPLITTER_H
+
+#include "mk_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void *mk_h264_splitter;
+
+/**
+ * h264 分帧器输出回调函数
+ * @param user_data 设置回调时的用户数据指针
+ * @param splitter 对象
+ * @param frame 帧数据
+ * @param size 帧数据长度
+ */
+typedef void(API_CALL *on_mk_h264_splitter_frame)(void *user_data, mk_h264_splitter splitter, const char *frame, int size);
+
+/**
+ * 创建h264分帧器
+ * @param cb 分帧回调函数
+ * @param user_data 回调用户数据指针
+ * @return 分帧器对象
+ */
+API_EXPORT mk_h264_splitter API_CALL mk_h264_splitter_create(on_mk_h264_splitter_frame cb, void *user_data);
+
+/**
+ * 删除h264分帧器
+ * @param ctx 分帧器
+ */
+API_EXPORT void API_CALL mk_h264_splitter_release(mk_h264_splitter ctx);
+
+/**
+ * 输入数据并分帧
+ * @param ctx 分帧器
+ * @param data h264/h265数据
+ * @param size 数据长度
+ */
+API_EXPORT void API_CALL mk_h264_splitter_input_data(mk_h264_splitter ctx, const char *data, int size);
+
+#ifdef __cplusplus
+}
+#endif
+#endif //ZLMEDIAKIT_MK_H264_SPLITTER_H

api/include/mk_mediakit.h

@@ -23,5 +23,6 @@
 #include "mk_util.h"
 #include "mk_thread.h"
 #include "mk_rtp_server.h"
+#include "mk_h264_splitter.h"
 
 #endif /* MK_API_H_ */

api/source/mk_h264_splitter.cpp

+/*
+ * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
+ *
+ * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
+ *
+ * Use of this source code is governed by MIT license that can be found in the
+ * LICENSE file in the root of the source tree. All contributing project authors
+ * may be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "mk_h264_splitter.h"
+#include "Http/HttpRequestSplitter.h"
+
+using namespace mediakit;
+
+class H264Splitter : public HttpRequestSplitter {
+public:
+    using onH264 = function<void(const char *data, size_t len)>;
+    H264Splitter() = default;
+    ~H264Splitter() override;
+    void setOnSplitted(onH264 cb);
+
+protected:
+    ssize_t onRecvHeader(const char *data, size_t len) override;
+    const char *onSearchPacketTail(const char *data, size_t len) override;
+
+private:
+    onH264 _cb;
+};
+
+void H264Splitter::setOnSplitted(H264Splitter::onH264 cb) {
+    _cb = std::move(cb);
+}
+
+H264Splitter::~H264Splitter() {
+    if (remainDataSize()) {
+        _cb(remainData(), remainDataSize());
+    }
+}
+
+ssize_t H264Splitter::onRecvHeader(const char *data, size_t len) {
+    _cb(data, len);
+    return 0;
+}
+
+const char *H264Splitter::onSearchPacketTail(const char *data, size_t len) {
+    for (size_t i = 2; len > 2 && i < len - 2; ++i) {
+        //判断0x00 00 01
+        if (data[i] == 0 && data[i + 1] == 0 && data[i + 2] == 1) {
+            if (i > 0 && data[i - 1] == 0) {
+                //找到0x00 00 00 01
+                return data + i - 1;
+            }
+            return data + i;
+        }
+    }
+    return nullptr;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+API_EXPORT mk_h264_splitter API_CALL mk_h264_splitter_create(on_mk_h264_splitter_frame cb, void *user_data) {
+    assert(cb);
+    auto ptr = new H264Splitter();
+    ptr->setOnSplitted([cb, ptr, user_data](const char *data, size_t len) {
+        cb(user_data, reinterpret_cast<mk_h264_splitter>(ptr), data, len);
+    });
+    return reinterpret_cast<mk_h264_splitter>(ptr);
+}
+
+API_EXPORT void API_CALL mk_h264_splitter_release(mk_h264_splitter ctx){
+    assert(ctx);
+    auto ptr = reinterpret_cast<H264Splitter *>(ctx);
+    delete ptr;
+}
+
+API_EXPORT void API_CALL mk_h264_splitter_input_data(mk_h264_splitter ctx, const char *data, int size) {
+    assert(ctx && data && size);
+    auto ptr = reinterpret_cast<H264Splitter *>(ctx);
+    ptr->input(data, size);
+}

api/tests/h264_media_server.c

+/*
+ * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
+ *
+ * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
+ *
+ * Use of this source code is governed by MIT license that can be found in the
+ * LICENSE file in the root of the source tree. All contributing project authors
+ * may be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifdef _WIN32
+#include "windows.h"
+#else
+#include "unistd.h"
+#endif
+#include "mk_mediakit.h"
+
+static int exit_flag = 0;
+static void s_on_exit(int sig) {
+    exit_flag = 1;
+}
+
+static void on_h264_frame(void *user_data, mk_h264_splitter splitter, const char *frame, int size) {
+#ifdef _WIN32
+    Sleep(40);
+#else
+    usleep(40 * 1000);
+#endif
+    mk_media media = (mk_media) user_data;
+    mk_media_input_h264(media, frame, size, 0, 0);
+}
+
+int main(int argc, char *argv[]) {
+    mk_config config = {
+            .ini = NULL,
+            .ini_is_path = 1,
+            .log_level = 0,
+            .log_file_path = NULL,
+            .log_file_days = 0,
+            .ssl = NULL,
+            .ssl_is_path = 1,
+            .ssl_pwd = NULL,
+            .thread_num = 0
+    };
+    mk_env_init(&config);
+    mk_http_server_start(80, 0);
+    mk_rtsp_server_start(554, 0);
+    mk_rtmp_server_start(1935, 0);
+
+    signal(SIGINT, s_on_exit);// 设置退出信号
+
+    FILE *fp = fopen(argv[1], "rb");
+    if (!fp) {
+        log_error("打开文件失败!");
+        return -1;
+    }
+
+    mk_media media = mk_media_create("__defaultVhost__", "live", "test", 0, 0, 0);
+    //h264的codec
+    mk_media_init_video(media, 0, 0, 0, 0);
+    mk_media_init_complete(media);
+
+    //创建h264分帧器
+    mk_h264_splitter splitter = mk_h264_splitter_create(on_h264_frame, media);
+
+    char buf[1024];
+    while (!exit_flag) {
+        int size = fread(buf, 1, sizeof(buf) - 1, fp);
+        if (size > 0) {
+            mk_h264_splitter_input_data(splitter, buf, size);
+        } else {
+            //文件读完了，重新开始
+            fseek(fp, 0, SEEK_SET);
+        }
+    }
+
+    log_info("文件读取完毕");
+    mk_h264_splitter_release(splitter);
+    mk_media_release(media);
+    fclose(fp);
+    mk_stop_all_server();
+    return 0;
+}
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