decode

how to decode the byte array (.h264 format) in to video in android?

由 送分小仙女□ 提交于 2019-12-02 04:58:18
In My App, I have to decode the bytearray (that is in .h264 format) in to video and the byte array coming from live steaming. The code is below: static final int VIDEO_BUF_SIZE = 100000; static final int FRAME_INFO_SIZE = 16; byte[] frameInfo = new byte[FRAME_INFO_SIZE]; byte[] videoBuffer = new byte[VIDEO_BUF_SIZE]; File SDFile = android.os.Environment.getExternalStorageDirectory(); File destDir = new File(SDFile.getAbsolutePath() + "/test.h264"); //avRecvFrameData returns the length of the frame and stores it in ret. int ret = av.avRecvFrameData(avIndex, videoBuffer, VIDEO_BUF_SIZE,

Decode G711(PCM u-law)

由 匆匆过客 提交于 2019-12-02 03:57:34
问题 Please bear with me as my understanding of audio codec is limited. I have this audio source from a IPCAM (through a htto//... CGI interface). I am trying to write several client programs to play this audio source on Windows, MAC, as well as Android phone. The audio is encoded in G711 (PCM ulaw). Do I need to decode the PCM audio data to a raw audio data before I could pass it to the audio engine to play? If so, is there some sample code on how to decode it? I am confused as somehow I believe

python 连接redis

由 半腔热情 提交于 2019-12-02 03:24:06
from redis import ConnectionPool, Redis pool = ConnectionPool(host='localhost',password='aaa123', port=6379, db=0, decode_responses=True) rdb = Redis(connection_pool=pool) redis在实例化的时候给了一个参数叫decode_response，默认值是False，如果我们把这个值改为True，则避免了转码流程，直接对原数据进行操作 来源： https://www.cnblogs.com/angdh/p/11728696.html

Conversion of Base64 Encoded into XSLX

由 强颜欢笑 提交于 2019-12-02 03:22:32
问题 I was looking into my Mail Server in Text version; There is saw an attachment of filename= xyz.xslx & Content-Transfer-Encoding: base-64 and after that there was stream of Base64 encoded Code. Initially the content-type was Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet; Now, Is it possible to convert the base-64 encoded string code to retrieve the xslx document? I tried using several online sites like base64decode.org but as the initial file type was xslx, it

Send USSD code to modem in C# and ERROR in return always

由 社会主义新天地 提交于 2019-12-02 02:55:20
问题 I am sending USSD code on modem through serial port. But always it is giving ERROR in response. AT commands I am sending are: in sequence: serialPort.Write("AT+CMGF=0" + "\r\n"); serialPort.Write("AT+CUSD=1,\"*135#\"" + "\r\n"); when I am configuring message format in first AT command, it is giving 'OK' response. But on sending USSD code, response is always 'ERROR'. Why is it so? 回答1: Don't use \n in end of command, use only \r . Form of CUSD command is: AT+CUSD=1,"*135#",15 . In C# it should

Decode G711(PCM u-law)

由 帅比萌擦擦* 提交于 2019-12-02 02:54:17
Please bear with me as my understanding of audio codec is limited. I have this audio source from a IPCAM (through a htto//... CGI interface). I am trying to write several client programs to play this audio source on Windows, MAC, as well as Android phone. The audio is encoded in G711 (PCM ulaw). Do I need to decode the PCM audio data to a raw audio data before I could pass it to the audio engine to play? If so, is there some sample code on how to decode it? I am confused as somehow I believe PCM is already RAW. Could I just feed it directly to the audio engine on Android for example? thanks

Error when decode AAC with avcodec_decode_audio4()

由 眉间皱痕 提交于 2019-12-02 00:07:56
问题 I'm trying to decode AAC with FFmpeg native decoder and encountered an error SSR is not implemeted. Update your FFmpeg version to newest from Git. If the problem still occurs, it mean that your file has a feature which has not implemented. Function avcodec_decode_audio4() return -1163346256. Is this because of FFmpeg version? I downloaded shared and dev version from here. Is this up to date? Here is the source code: #include "stdafx.h" #include "stdio.h" #include "conio.h" extern "C" {

Send USSD code to modem in C# and ERROR in return always

由 痴心易碎 提交于 2019-12-02 00:04:25
I am sending USSD code on modem through serial port. But always it is giving ERROR in response. AT commands I am sending are: in sequence: serialPort.Write("AT+CMGF=0" + "\r\n"); serialPort.Write("AT+CUSD=1,\"*135#\"" + "\r\n"); when I am configuring message format in first AT command, it is giving 'OK' response. But on sending USSD code, response is always 'ERROR'. Why is it so? pumaikar Don't use \n in end of command, use only \r . Form of CUSD command is: AT+CUSD=1,"*135#",15 . In C# it should be: serialPort.Write("AT+CMGF=0" + "\r"); serialPort.Write("AT+CUSD=1,\"*135#\",15" + "\r");

How do I convert an image to base64 and base64 to image? The way I do it doesn't work

由 拈花ヽ惹草 提交于 2019-12-01 23:43:14
This is an example code. var image = await ImagePicker.pickImage(source: ImageSource.camera); var stringBytes = base64.encode(image.readAsBytesSync()); var bytes = base64.decode(stringBytes); var newImage = new File.fromRawPath(bytes); I/flutter (14608): The following FileSystemException was thrown resolving an image codec: I/flutter (14608): Cannot open file, path = '����*�Exif I/flutter (14608): I/flutter (14608): I/flutter (14608): Business I/flutter (14608): 11:42:34 I/flutter (14608): � I/flutter (14608): I/flutter (14608): �� I/flutter (14608): �� I/flutter (14608): %&'()*456789

Is there a way to encode and decode the closures?

由 妖精的绣舞 提交于 2019-12-01 23:15:37
问题 For some reason, I need to serialize a class object that contains several closure fields. Like this: import Foundation class Foo: NSObject, NSCoding { var bar: (() -> Void) override init() { bar = {} } required init(coder aDecoder: NSCoder) { bar = aDecoder.decodeObject(forKey: "bar") as! (() -> Void) } func encode(with aCoder: NSCoder) { aCoder.encode(bar, forKey: "bar") } } let foo = Foo() foo.bar = { print("Help!") } let data = NSKeyedArchiver.archivedData(withRootObject: foo) let object =
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