if (stream1.retrieve(encodedPacket)) {
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "iiiiiiiiii!");
char *inputBuf = mppDecoder->getInputBuffer(inputIndex);
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "uuuuuuuuuuu:%s",*inputBuf);
size_t dataSize = encodedPacket.total() * encodedPacket.elemSize();
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "ffffffffff!");
if (!inputBuf || !encodedPacket.data) {
__LOG_PRINT(ANDROID_LOG_ERROR, "rtsp", "NULL pointer detected!");
}
memcpy(inputBuf, encodedPacket.data, dataSize);
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "aaaaaaaaa!");
mppDecoder->queueInputBuffer(inputIndex, 0, dataSize, 0);
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "sssssssssss!");
}我这里会出现段错误，这里uuuuuuuuuuu:(null) ，帮我优化这个问题，这是完整代码void *open_media(void *argv){
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "open_media xxxxxxxxxx");
ThreadData *data = static_cast<ThreadData *>(argv);
RKMpp* mppDecoder = data->mppDecoder.get();
const char *rurl = data->url;
std::string cstr = std::string(data->cameraId);
int cameraId = std::stoi(cstr);
std::string istr = std::string(data->indexStr);
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "open_media xxxxxxxxxx %s", istr.c_str());
int index = std::stoi(istr);
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "open_media %d %s %i", cameraId, rurl, index);
int retries = 0;
while (retries < MAX_RETRIES) {
cv::VideoCapture stream1(rurl, cv::CAP_FFMPEG);
if (!stream1.isOpened()) {
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "Cannot open RTSP stream!");
std::cerr << "无法打开 RTSP 流，尝试第 " << retries + 1 << " 次重连..." << std::endl;
retries++;
std::this_thread::sleep_for(std::chrono::seconds(RETRY_INTERVAL));
continue;
}
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "oooooooooooo!");
cv::Mat encodedPacket; // 假设存储编码数据（如 H.264 包）
while (true) {
// 从流中读取编码数据包（需验证 OpenCV 是否支持直接读包）
if (!stream1.grab()) {
// 处理断流重连
break;
}
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "kkkkkkkkkk!");
// 获取 MPP 输入缓冲区
int inputIndex = mppDecoder->dequeueInputBuffer(500000);
if (inputIndex < 0) continue;
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "ppppppppppp!");
// 读取编码数
if (stream1.retrieve(encodedPacket)) {
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "iiiiiiiiii!");
char *inputBuf = mppDecoder->getInputBuffer(inputIndex);
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "uuuuuuuuuuu:%s",*inputBuf);
size_t dataSize = encodedPacket.total() * encodedPacket.elemSize();
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "ffffffffff!");
if (!inputBuf || !encodedPacket.data) {
__LOG_PRINT(ANDROID_LOG_ERROR, "rtsp", "NULL pointer detected!");
}
memcpy(inputBuf, encodedPacket.data, dataSize);
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "aaaaaaaaa!");
mppDecoder->queueInputBuffer(inputIndex, 0, dataSize, 0);
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "sssssssssss!");
}
__LOG_PRINT(ANDROID_LOG_DEBUG, "rtsp", "jjjjjjjjjjjj!");
// 获取解码后的帧
int outputIndex = mppDecoder->dequeueOutputBuffer(100000);
// if (outputIndex >= 0) {
// char *decodedFrame = mppDecoder.getFrame();
// screenShot(num, cameraId, index, decodedFrame); // 修改后的截图函数
// }
}
}
}
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