鸿蒙（API 12 Beta3版）【使用AVScreenCapture录屏取原始码流(C/C++)】视频 - ToB企服应用市场:ToB评测及商务社交产业平台

target_link_libraries(entry PUBLIC libnative_avscreen_capture.so libnative_buffer.so libnative_media_core.so)

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#include "napi/native_api.h"
#include <multimedia/player_framework/native_avscreen_capture.h>
#include <multimedia/player_framework/native_avscreen_capture_base.h>
#include <multimedia/player_framework/native_avscreen_capture_errors.h>
#include <native_buffer/native_buffer.h>
#include <fcntl.h>
#include "string"
#include "unistd.h"

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OH_AudioCaptureInfo miccapinfo = {
.audioSampleRate = 16000,
.audioChannels = 2,
.audioSource = OH_MIC
};
OH_VideoCaptureInfo videocapinfo = {
.videoFrameWidth = 720,
.videoFrameHeight = 1080,
.videoSource = OH_VIDEO_SOURCE_SURFACE_RGBA
};
OH_AudioInfo audioinfo = {
.micCapInfo = miccapinfo,
};
OH_VideoInfo videoinfo = {
.videoCapInfo = videocapinfo
};
OH_AVScreenCaptureConfig config = {
.captureMode = OH_CAPTURE_HOME_SCREEN,
.dataType = OH_ORIGINAL_STREAM,
.audioInfo = audioinfo,
.videoInfo = videoinfo
};
OH_AVScreenCapture_Init(capture, config);

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bool isMic = true;
OH_AVScreenCapture_SetMicrophoneEnabled(capture, isMic);

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OH_AVScreenCapture_SetErrorCallback(capture, OnError, userData);
OH_AVScreenCapture_SetStateCallback(capture, OnStateChange, userData);
OH_AVScreenCapture_SetDataCallback(capture, OnBufferAvailable, userData);

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OnBufferAvailable(OH_AVScreenCapture *capture, OH_AVBuffer *buffer,
OH_AVScreenCaptureBufferType bufferType, int64_t timestamp, void *userData)

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#include "napi/native_api.h"#include <multimedia/player_framework/native_avscreen_capture.h>#include <multimedia/player_framework/native_avscreen_capture_base.h>#include <multimedia/player_framework/native_avscreen_capture_errors.h>#include <multimedia/player_framework/native_avbuffer.h>#include <native_buffer/native_buffer.h>#include <fcntl.h>#include "string"#include "unistd.h"void OnError(OH_AVScreenCapture *capture, int32_t errorCode, void *userData) { (void)capture; (void)errorCode; (void)userData;}void OnStateChange(struct OH_AVScreenCapture *capture, OH_AVScreenCaptureStateCode stateCode, void *userData) { (void)capture; if (stateCode == OH_SCREEN_CAPTURE_STATE_STARTED) { // 处理惩罚状态变动 } if (stateCode == OH_SCREEN_CAPTURE_STATE_STOPPED_BY_CALL) { // 通话中断状态处理惩罚 } if (stateCode == OH_SCREEN_CAPTURE_STATE_INTERRUPTED_BY_OTHER) { // 处理惩罚状态变动 } (void)userData;}void OnBufferAvailable(OH_AVScreenCapture *capture, OH_AVBuffer *buffer,
OH_AVScreenCaptureBufferType bufferType, int64_t timestamp, void *userData)
{ // 获取解码后信息可以参考编解码接口 int bufferLen = OH_AVBuffer_GetCapacity(buffer); OH_NativeBuffer *nativeBuffer = OH_AVBuffer_GetNativeBuffer(buffer); OH_NativeBuffer_Config config; OH_NativeBuffer_GetConfig(nativeBuffer, &config); int32_t videoSize= config.height * config.width * 4; uint8_t *buf = OH_AVBuffer_GetAddr(buffer); if (bufferType == OH_SCREEN_CAPTURE_BUFFERTYPE_VIDEO) { // 处理惩罚视频buffer } else if (bufferType == OH_SCREEN_CAPTURE_BUFFERTYPE_AUDIO_INNER) { // 处理惩罚内录buffer } else if (bufferType == OH_SCREEN_CAPTURE_BUFFERTYPE_AUDIO_MIC) { // 处理惩罚麦克风buffer }}struct OH_AVScreenCapture *capture;static napi_value Screencapture(napi_env env, napi_callback_info info) { // 从js端获取窗口id number[] std::vector<int> windowIdsExclude = {}; size_t argc = 1; napi_value args[1] = {nullptr}; // 获取参数 napi_get_cb_info(env, info, &argc, args, nullptr, nullptr); // 获取数组长度 uint32_t array_length; napi_get_array_length(env, args[0], &array_length); // 读初窗口id for (int32_t i = 0; i < array_length; i++) { napi_value temp; napi_get_element(env, args[0], i, &temp); uint32_t tempValue; napi_get_value_uint32(env, temp, &tempValue); windowIdsExclude.push_back(tempValue); } // 实例化ScreenCapture capture = OH_AVScreenCapture_Create(); // 设置回调 OH_AVScreenCapture_SetErrorCallback(capture, OnError, nullptr); OH_AVScreenCapture_SetStateCallback(capture, OnStateChange, nullptr); OH_AVScreenCapture_SetDataCallback(capture, OnBufferAvailable, nullptr); // 可选配置录屏旋转，此接口在感知得手机屏幕旋转时调用，如果手机的屏幕实际上没有发生旋转，调用接口是无效的。 OH_AVScreenCapture_SetCanvasRotation(capture, true); // 可选 [过滤音频] OH_AVScreenCapture_ContentFilter *contentFilter= OH_AVScreenCapture_CreateContentFilter(); // 添加过滤关照音 OH_AVScreenCapture_ContentFilter_AddAudioContent(contentFilter, OH_SCREEN_CAPTURE_NOTIFICATION_AUDIO); // 排除指定窗口id OH_AVScreenCapture_ContentFilter_AddWindowContent(contentFilter, &windowIdsExclude[0], static_cast<int32_t>(windowIdsExclude.size())); OH_AVScreenCapture_ExcludeContent(capture, contentFilter); // 初始化录屏，传入配置信息OH_AVScreenRecorderConfig OH_AudioCaptureInfo miccapinfo = {.audioSampleRate = 16000, .audioChannels = 2, .audioSource = OH_MIC}; OH_VideoCaptureInfo videocapinfo = { .videoFrameWidth = 720, .videoFrameHeight = 1080, .videoSource = OH_VIDEO_SOURCE_SURFACE_RGBA}; OH_AudioInfo audioinfo = { .micCapInfo = miccapinfo, }; OH_VideoInfo videoinfo = {.videoCapInfo = videocapinfo}; OH_AVScreenCaptureConfig config = {.captureMode = OH_CAPTURE_HOME_SCREEN, .dataType = OH_ORIGINAL_STREAM, .audioInfo = audioinfo, .videoInfo = videoinfo}; OH_AVScreenCapture_Init(capture, config); // 可选 [Surface模式] // 通过 MIME TYPE 创建编码器，系统会根据MIME创建最合适的编码器。 // OH_AVCodec *codec = OH_VideoEncoder_CreateByMime(OH_AVCODEC_MIMETYPE_VIDEO_AVC); // 从视频编码器获取输入Surface // OH_AVErrCode OH_VideoEncoder_GetSurface(codec, window); // 启动编码器 // int32_t retEnc = OH_VideoEncoder_Start(codec); // 指定surface开始录屏 // int32_t retStart = OH_AVScreenCapture_StartScreenCaptureWithSurface(capture, window);
// 开始录屏 OH_AVScreenCapture_StartScreenCapture(capture);
// mic开关设置 OH_AVScreenCapture_SetMicrophoneEnabled(capture, true); sleep(10); // 录制10s // 结束录屏 OH_AVScreenCapture_StopScreenCapture(capture);
// 释放ScreenCapture OH_AVScreenCapture_Release(capture);
// 返回调用结果，示例仅返回随意值 napi_value sum; napi_create_double(env, 5, &sum); return sum;}

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