From 96fd3554261b19292a06446a45b63681b7c9bcdb Mon Sep 17 00:00:00 2001 From: jiao_yanlin Date: Tue, 14 Feb 2023 15:08:09 +0800 Subject: [PATCH] File acquisition method modification Signed-off-by: jiao_yanlin --- zh-cn/application-dev/media/audio-capturer.md | 28 +++++++++++-------- 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/zh-cn/application-dev/media/audio-capturer.md b/zh-cn/application-dev/media/audio-capturer.md index bd4b85955d..47f5645019 100644 --- a/zh-cn/application-dev/media/audio-capturer.md +++ b/zh-cn/application-dev/media/audio-capturer.md @@ -86,7 +86,7 @@ AudioCapturer提供了用于获取原始音频文件的方法。开发者可以 参考以下示例，将采集到的数据写入文件。 ```js - import fileio from '@ohos.fileio'; + import fs from '@ohos.file.fs'; let state = audioCapturer.state; // 只有状态为STATE_RUNNING的时候才可以read. @@ -96,32 +96,36 @@ AudioCapturer提供了用于获取原始音频文件的方法。开发者可以 } const path = '/data/data/.pulse_dir/capture_js.wav'; // 采集到的音频文件存储路径 - let fd = fileio.openSync(path, 0o102, 0o777); - if (fd !== null) { - console.info('AudioRecLog: file fd created'); - } - else{ - console.info('AudioRecLog: file fd create : FAILED'); + let file = fs.openSync(filePath, 0o2); + let fd = file.fd; + if (file !== null) { + console.info('AudioRecLog: file created'); + } else { + console.info('AudioRecLog: file create : FAILED'); return; } - - fd = fileio.openSync(path, 0o2002, 0o666); + if (fd !== null) { console.info('AudioRecLog: file fd opened in append mode'); } let numBuffersToCapture = 150; // 循环写入150次 + let count = 0; while (numBuffersToCapture) { let bufferSize = await audioCapturer.getBuffersize(); let buffer = await audioCapturer.read(bufferSize, true); + let options = { + offset: count * this.bufferSize, + length: this.bufferSize + } if (typeof(buffer) == undefined) { console.info('AudioRecLog: read buffer failed'); } else { - let number = fileio.writeSync(fd, buffer); + let number = fs.writeSync(fd, buffer, options); console.info(`AudioRecLog: data written: ${number}`); - } - + } numBuffersToCapture--; + count++; } ``` -- GitLab