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Mediacodec dequeueinputbuffer

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2022. 8. 14. · 本文向你讲述如何用Android标准的API (MediaCodec)实现视频的硬件编解码。例程将从摄像头采集视频开始,然后进行H264编码,再解码,然后显示。我将尽量讲得简短而清晰,不展示那些不相关的代码。. C++ (Cpp) ff_AMediaCodec_dequeueInputBuffer - 2 examples found. These are the top rated real world C++ (Cpp) examples of ff_AMediaCodec_dequeueInputBuffer extracted from open source projects. You can rate examples to help us improve the quality of examples. 2014. 1. 5. · java.lang.IllegalStateExceptionat at android.media.MediaCodec.native_dequeueOutputBuffer - 0x80001000 (OMX_ErrorInsufficientResources) #2436 Closed kartdroid opened this issue Feb 10,. 1. Card main: This is caused by parameter settings during the codec process, which will be mentioned below. 2, the encoded AAC audio cannot be played: add ADTS Head to the AAC audio during the encoding process, and the code is reflected in the code. 3, the most headache, the transcoding speed is too slow, the transcoding song is 5 minutes.. android.media.MediaCodec. Best Java code snippets using android.media. MediaCodec.dequeueInputBuffer (Showing top 20 results out of 513) android.media MediaCodec dequeueInputBuffer. Faced with problem like in issues #1997 #1383 #3032 This problem reproduces on some Samsung devices, for examples: SM-J120H Android 5.1.1. API 22 SM-N910F API 23 SM-G950F API 24 SM-G955F API 24 Used links for mp4 video, and some videos n.

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Android native MediaCodec编解码器模块化注册和创建处理流程 本系列文章分析的安卓源码版本:【Android 10.0 版本】 从【六】Android MediaPlayer整体架构源码分析 -【start请求播放处理流程】【Part 4】章节分析中涉及到了MediaCodec编解码器创建处理流程,因此有必要此章节单独分析编解码器创建流程,主要会. After calling this method, any ByteBuffers previously returned by an earlier call to this method MUST no longer be used. codecInputBuffers = codec.getInputBuffers (); //Retrieve the set of output buffers. Call this after start () returns and whenever dequeueOutputBuffer signals an output buffer change by returning INFO_OUTPUT_BUFFERS_CHANGED..

Java documentation for android.media.MediaCodec.queueSecureInputBuffer(int, int, android.media.CryptoInfo, long, int). Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License. Applies to. /** * Write a media sample to the decoder. * * <p>A "sample" here refers to a single atomic access unit in the media stream. The definition of * "access unit" is dependent on the type of encoding used, but it typically refers to a single * frame of video or a few seconds of audio. {@link android.media.MediaExtractor} extracts data * from a stream one sample at a time.. MediaCodec encoder sample. GitHub Gist: instantly share code, notes, and snippets.. 看log就只有这些几行native_dequeueInputBuffer的错误,根本没法解决啊~ 于是之后跟盒子厂家要源码继续搞了。 通过查看代码流程,这句log是在MediaCodec中打印的,所以老套路,加log,加backtrace。 这里面就有一个不得不说的坑,tm MTK居然把一些log搞没,搞到我找了很久。.

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A Map is a data structure consisting of a set of keys and values in which each key is mapped to a si. Java MediaCodec.queueInputBuffer Examples Java MediaCodec.queueInputBuffer - 11 examples found. These are the top rated real world Java examples of android.media.MediaCodec.queueInputBuffer extracted from open source projects. You can rate examples to help us improve the quality of examples. Programming Language: Java. Feb 10, 2017 · queueInputBuffer和dequeueInputBuffer是一对方法,两个要在一起使用哦。首先,这一对函数的应用场合是对输入的数据流进行编码或者解码处理的时候,你会通过各种方法获得一个ByteBuffer的数组,这些数据就是准备处理的数据。. android.media.MediaCodec.queueInputBuffer java code examples | Tabnine MediaCodec.queueInputBuffer Code Index Add Tabnine to your IDE (free) How to use queueInputBuffer method in android.media.MediaCodec Best Java code snippets using android.media. MediaCodec.queueInputBuffer (Showing top 20 results out of 522) queueInputBuffer. Java MediaCodec.queueInputBuffer - 2 examples found. These are the top rated real world Java examples of MediaCodec.queueInputBuffer extracted from open source projects. You can rate examples to help us improve the quality of examples. /** * Write a media sample to the decoder. * * <p>A "sample" here refers to a single atomic access unit in the ....

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A Map is a data structure consisting of a set of keys and values in which each key is mapped to a si. 2022. 8. 14. · 最近公司要求提供一个支持Android硬件转码的底层库,所以自己从头去看了MediaCodec相关的知识,费了老大的劲终于完成了。目前的硬件转码使用MediaCodec进行解码和编码,然后使用FFmpeg进行文件封装(为了支持文件分块)。这篇文章主要介绍一些MediaCodec的基础知识和使用方式,后面会写如何利用FFmpeg. The following examples show how to use android.media.MediaCodec#getOutputBuffer() .You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.. 看log就只有这些几行native_dequeueInputBuffer的错误,根本没法解决啊~ 于是之后跟盒子厂家要源码继续搞了。 通过查看代码流程,这句log是在MediaCodec中打印的,所以老套路,加log,加backtrace。 这里面就有一个不得不说的坑,tm MTK居然把一些log搞没,搞到我找了很久。. 2020. 12. 28. · Parameters; format: MediaFormat: The format of the input data (decoder) or the desired format of the output data (encoder).Passing null as format is equivalent to passing an an empty mediaformat.: surface: Surface: Specify a surface on which to render the output of this decoder.Pass null as surface if the codec does not generate raw video output (e.g. not a video. After a successful call to start() the client "owns" neither input nor output buffers, subsequent calls to dequeueInputBuffer(long) and dequeueOutputBuffer(MediaCodec.BufferInfo, long) then transfer ownership from the codec to the client..

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/** * Write a media sample to the decoder. * * <p>A "sample" here refers to a single atomic access unit in the media stream. The definition of * "access unit" is dependent on the type of encoding used, but it typically refers to a single * frame of video or a few seconds of audio. {@link android.media.MediaExtractor} extracts data * from a stream one sample at a time.. 2022. 8. 14. · 最近公司要求提供一个支持Android硬件转码的底层库,所以自己从头去看了MediaCodec相关的知识,费了老大的劲终于完成了。目前的硬件转码使用MediaCodec进行解码和编码,然后使用FFmpeg进行文件封装(为了支持文件分块)。这篇文章主要介绍一些MediaCodec的基础知识和使用方式,后面会写如何利用FFmpeg. .
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    原文 标签 android android-mediacodec. 以下代码偶尔会生成 java.lang.IllegalStateException: int iInputBufIndex = _mcDecoder.dequeueInputBuffer (TIMEOUT_USEC); 其中 _mcDecoder 是 MediaCodec 的一个实例。. 解码后的流是 H.264 视频。. 该代码大部分时间都运行良好。. 有没有办法主动检查 MediaCodec 的 .... 2014. 1. 5. · java.lang.IllegalStateExceptionat at android.media.MediaCodec.native_dequeueOutputBuffer - 0x80001000 (OMX_ErrorInsufficientResources) #2436 Closed kartdroid opened this issue Feb 10,. 1. Card main: This is caused by parameter settings during the codec process, which will be mentioned below. 2, the encoded AAC audio cannot be played: add ADTS Head to the AAC audio during the encoding process, and the code is reflected in the code. 3, the most headache, the transcoding speed is too slow, the transcoding song is 5 minutes.. Java documentation for android.media.MediaCodec.queueSecureInputBuffer(int, int, android.media.CryptoInfo, long, int). Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License. Applies to.

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    Java MediaCodec.queueInputBuffer - 11 examples found. These are the top rated real world Java examples of android.media.MediaCodec.queueInputBuffer extracted from open source projects. You can rate examples to help us improve the quality of examples. 2022. 8. 12. · 从上图可知,当MediaCodec被创建后会进入未初始化状态,待设置好配置信息并调用start()启动后,MediaCodec会进入运行状态,并且可进行数据读写操作。如果在这个过程中出现了错误,MediaCodec会进入Stopped状态,我们就是要使用reset方法来重置编解码器,否则MediaCodec所持有的资源最终会被释放。. Here are my steps: Open demo app (release-v2 branch) Clear Dash -> HD (MP4, H264) I have the following result (see video) Configuration: -- Android Studio 2021.2.1 Patch 1 -- Emulator: Pixel 2 API 30, Android 11 Google Play | arm64. And yes, with this specific emulator (API 30), I can always reproduce the error, but not in other API. 我正在开发一个渐进式web应用程序,在手机上使用in. manifest.json. “display”运行它之后:“全屏”. 我发现,每当我使用虚拟键盘时,它都不会显示其下方的“软菜单”(我使用的是Pixel 2 XL)。. 以下是一些截图,您可以理解我的意思:. 当我想输入东西时,每当. MediaCodec decode h264 example. GitHub Gist: instantly share code, notes, and snippets. Java MediaCodec.getInputBuffers - 9 examples found. These are the top rated real world Java examples of android.media.MediaCodec.getInputBuffers extracted from open source projects. ... .INFO_TRY_AGAIN_LATER) { // wait for MediaCodec encoder is ready to encode // nothing to do here because MediaCodec#dequeueInputBuffer(TIMEOUT_USEC) // will. 看log就只有这些几行native_dequeueInputBuffer的错误,根本没法解决啊~ 于是之后跟盒子厂家要源码继续搞了。 通过查看代码流程,这句log是在MediaCodec中打印的,所以老套路,加log,加backtrace。 这里面就有一个不得不说的坑,tm MTK居然把一些log搞没,搞到我找了很久。. 2022. 8. 13. · MediaCodec+MediaMuxer: MediaCodec 与 MediaMuxer 结合使用同样能够实现录制的功能。 MediaCodec 是 Android 提供的编解码类,MediaMuxer 则是复用类(生成视频文件)。 从易用性的角度上来说肯定不如 MediaRecorder,但是允许我们进行更加灵活的操作,比如需要给录制的视频添加水印等各种效果。. 1. Card main: This is caused by parameter settings during the codec process, which will be mentioned below. 2, the encoded AAC audio cannot be played: add ADTS Head to the AAC audio during the encoding process, and the code is reflected in the code. 3, the most headache, the transcoding speed is too slow, the transcoding song is 5 minutes.. 2022. 8. 13. · MediaCodec+MediaMuxer: MediaCodec 与 MediaMuxer 结合使用同样能够实现录制的功能。 MediaCodec 是 Android 提供的编解码类,MediaMuxer 则是复用类(生成视频文件)。 从易用性的角度上来说肯定不如 MediaRecorder,但是允许我们进行更加灵活的操作,比如需要给录制的视频添加水印等各种效果。. 2014. 1. 5. · java.lang.IllegalStateExceptionat at android.media.MediaCodec.native_dequeueOutputBuffer - 0x80001000 (OMX_ErrorInsufficientResources) #2436 Closed kartdroid opened this issue Feb 10,.

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    2022. 8. 14. · 本文向你讲述如何用Android标准的API (MediaCodec)实现视频的硬件编解码。例程将从摄像头采集视频开始,然后进行H264编码,再解码,然后显示。我将尽量讲得简短而清晰,不展示那些不相关的代码。. 1. Card main: This is caused by parameter settings during the codec process, which will be mentioned below. 2, the encoded AAC audio cannot be played: add ADTS Head to the AAC audio during the encoding process, and the code is reflected in the code. 3, the most headache, the transcoding speed is too slow, the transcoding song is 5 minutes.. Once an input buffer is queued to the codec, it MUST NOT be used until it is later retrieved by getInputBuffer(int) in response to a dequeueInputBuffer(long) return value or a onInputBufferAvailable(MediaCodec, int) callback. Many decoders require the actual. However, there is no direct support for MediaCodec access in Unity. Jan 22, 2016 · 5. I'm trying to encode h264 video on Android for real-time video streaming using MediaCodec but dequeueOutputBuffer keeps taking very long (actually it's very fast sometimes but very slow at other times, see log output below). I've seen it go even up to 200ms for the output buffer to be ready.. MediaCodec中的解码器无法自动调整大小,它总是以实际大小输出帧。. 编码器还对帧进行编码,并使用实际大小作为输入,无法在内部进行大小调整。. 因此,如果要将帧放入大小不等于解码帧的编码器,则需要进行大小调整. 您还可以查看INDE Media Pack:,它有. 2022. 8. 14. · 最近公司要求提供一个支持Android硬件转码的底层库,所以自己从头去看了MediaCodec相关的知识,费了老大的劲终于完成了。目前的硬件转码使用MediaCodec进行解码和编码,然后使用FFmpeg进行文件封装(为了支持文件分块)。这篇文章主要介绍一些MediaCodec的基础知识和使用方式,后面会写如何利用FFmpeg. 2020. 3. 7. · MediaCodec class can be used to access low-level media codecs, i.e. encoder/decoder components. It is part of the Android low-level multimedia support infrastructure (normally used together with MediaExtractor, MediaSync, MediaMuxer, MediaCrypto, MediaDrm, Image, Surface, and AudioTrack.). In broad terms, a codec processes input data to generate. Android native MediaCodec编解码器模块化注册和创建处理流程 本系列文章分析的安卓源码版本:【Android 10.0 版本】 从【六】Android MediaPlayer整体架构源码分析 -【start请求播放处理流程】【Part 4】章节分析中涉及到了MediaCodec编解码器创建处理流程,因此有必要此章节单独分析编解码器创建流程,主要会. Here are my steps: Open demo app (release-v2 branch) Clear Dash -> HD (MP4, H264) I have the following result (see video) Configuration: -- Android Studio 2021.2.1 Patch 1 -- Emulator: Pixel 2 API 30, Android 11 Google Play | arm64. And yes, with this specific emulator (API 30), I can always reproduce the error, but not in other API. android. 我在用android mediacodec对h264进行编码和解码时出现了错误的颜色,android,android-mediacodec,Android,Android Mediacodec,最近我正在学习如何使用mediacodec,它似乎有一些问题。. 我编写了一个演示,从相机预览中获取数据,将其编码为h264,并将h264解码到surfaceview上,但. 在android本机中,Mediacodec.dequeueInputBuffer don';不归 Android; Chromecast音量进度条在电视上可见,但在我的android移动设备上不可见 Android; Android 谷歌放置自动完成安卓系统-不工作 Android Api Autocomplete; 在Android中计算进程的CPU使用率 Android Linux. Nov 21, 2016 · 运行程序并产生数据,这一行报错退出: int inBufferIndex = vencoder.dequeueInputBuffer(-1); 只捕捉到报错位置: android.media.MediaCodec ....

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    Java MediaCodec.queueInputBuffer - 11 examples found. These are the top rated real world Java examples of android.media.MediaCodec.queueInputBuffer extracted from open source projects. You can rate examples to help us improve the quality of examples. The following examples show how to use android.media.MediaCodec#queueInputBuffer() .These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. int: the start-offset of the data in the buffer. newSize. int: the amount of data (in bytes) in the buffer. newTimeUs. long: the presentation timestamp in microseconds. newFlags. int: buffer flags associated with the buffer. This should be a combination of BUFFER_FLAG_KEY_FRAME and BUFFER_FLAG_END_OF_STREAM.. 1. Card main: This is caused by parameter settings during the codec process, which will be mentioned below. 2, the encoded AAC audio cannot be played: add ADTS Head to the AAC audio during the encoding process, and the code is reflected in the code. 3, the most headache, the transcoding speed is too slow, the transcoding song is 5 minutes.. 在android本机中,Mediacodec.dequeueInputBuffer don';不归,android,native,android-mediacodec,Android,Native,Android Mediacodec,各位, 当我开发android原生问题时,我遇到了一个问题 我编写了一个程序,使用本机mediacodec对yuv文件进行编码(使用硬件H264编码器) 当我遵循正常流程(从java层调用测试代码)时,它工作得很好 但. MediaCodec.dequeueInputBuffer Code Index Add Tabnine to your IDE (free) How to use dequeueInputBuffer method in android.media.MediaCodec Best Java code snippets using android.media. MediaCodec.dequeueInputBuffer (Showing top 20 results out of 513) android.media MediaCodec dequeueInputBuffer. Java documentation for android.media.MediaCodec.queueInputBuffer(int, int, int, long, int). Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License. Applies to. 2022. 8. 13. · MediaCodec是Android在4.1中加入的新的API,目前也有很多文章介绍MediaCodec的用法,但是很多时候很多手机都失败,主要问题出现在调用dequeueOutputBuffer的时候总是返回-1,让你以为No buffer available !这里介绍一个开源项目libstreaming,我们借助此项目中封装的一个工具类EncoderDebugger,来初始化MediaCodec会很好的. Nov 21, 2016 · 运行程序并产生数据,这一行报错退出: int inBufferIndex = vencoder.dequeueInputBuffer(-1); 只捕捉到报错位置: android.media.MediaCodec .... 1. Card main: This is caused by parameter settings during the codec process, which will be mentioned below. 2, the encoded AAC audio cannot be played: add ADTS Head to the AAC audio during the encoding process, and the code is reflected in the code. 3, the most headache, the transcoding speed is too slow, the transcoding song is 5 minutes.. MediaCodec class can be used to access low-level media codec, ... After a successful call to start() the client "owns" neither input nor output buffers, subsequent calls to dequeueInputBuffer(long) and dequeueOutputBuffer(MediaCodec.BufferInfo, long) then transfer ownership from the codec to the client.

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    Java MediaCodec.queueInputBuffer - 2 examples found. These are the top rated real world Java examples of MediaCodec.queueInputBuffer extracted from open source projects. You can rate examples to help us improve the quality of examples. /** * Write a media sample to the decoder. * * <p>A "sample" here refers to a single atomic access unit in the .... Parameters; format: MediaFormat: The format of the input data (decoder) or the desired format of the output data (encoder).Passing null as format is equivalent to passing an an empty mediaformat.: surface: Surface: Specify a surface on which to render the output of this decoder.Pass null as surface if the codec does not generate raw video output (e.g. not a video decoder) and/or if you want to. 2019. 10. 13. · Introduction In this page you can find the example usage for android.media MediaCodec dequeueOutputBuffer. Prototype @OutputBufferInfo public final int dequeueOutputBuffer(@NonNull BufferInfo info, long timeoutUs) Source Link Document Dequeue an output buffer, block at most "timeoutUs" microseconds. Usage. From source. MediaCodec中的解码器无法自动调整大小,它总是以实际大小输出帧。. 编码器还对帧进行编码,并使用实际大小作为输入,无法在内部进行大小调整。. 因此,如果要将帧放入大小不等于解码帧的编码器,则需要进行大小调整. 您还可以查看INDE Media Pack:,它有. Nov 21, 2016 · 运行程序并产生数据,这一行报错退出: int inBufferIndex = vencoder.dequeueInputBuffer(-1); 只捕捉到报错位置: android.media.MediaCodec .... C++ (Cpp) AMediaCodec_dequeueInputBuffer - 5 examples found. These are the top rated real world C++ (Cpp) examples of AMediaCodec_dequeueInputBuffer extracted from open source projects. You can rate examples to help us improve the quality of examples. MediaCodec API 说明. MediaCodec可以处理具体的视频流,主要有这几个方法: getInputBuffers:获取需要编码数据的输入流队列,返回的是一个ByteBuffer数组 queueInputBuffer:输入流入队列 dequeueInputBuffer:从输入流队列中取数据进行编码操作. Sep 08, 2016 · Once the MediaCodec is configured, we can supply to the decoder all the rest of the frames (depacketed NAL units). Upon successfull dequeue operation, the decoded buffer can be rendered onto the screen as follows. outputBufferId = decoder.dequeueOutputBuffer(info, 1000); decoder.releaseOutputBuffer(outputBufferId, true); Problem. android.media.MediaCodec. Best Java code snippets using android.media. MediaCodec.queueInputBuffer (Showing top 20 results out of 522) queueInputBuffer.

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    int: the start-offset of the data in the buffer. newSize. int: the amount of data (in bytes) in the buffer. newTimeUs. long: the presentation timestamp in microseconds. newFlags. int: buffer flags associated with the buffer. This should be a combination of BUFFER_FLAG_KEY_FRAME and BUFFER_FLAG_END_OF_STREAM.. After a successful call to start() the client "owns" neither input nor output buffers, subsequent calls to dequeueInputBuffer(long) and dequeueOutputBuffer(MediaCodec.BufferInfo, long) then transfer ownership from the codec to the client.. android.media.MediaCodec. Best Java code snippets using android.media. MediaCodec.dequeueOutputBuffer (Showing top 20 results out of 540). 通过MediaCodec解码出的PCM是按照Packed方式存储的,而FFmpeg解码出的PCM则可能是其中的任意一种。 所以为了更好的归一化处理,我们会对FFmpeg解码出的PCM进行重采样,统一采样成AV_SAMPLE_FMT_S16P格式,即:每个采样点是两字节的有符号short类型,并且按照Planar方. 2022. 8. 14. · 本文向你讲述如何用Android标准的API (MediaCodec)实现视频的硬件编解码。例程将从摄像头采集视频开始,然后进行H264编码,再解码,然后显示。我将尽量讲得简短而清晰,不展示那些不相关的代码。. 看log就只有这些几行native_dequeueInputBuffer的错误,根本没法解决啊~ 于是之后跟盒子厂家要源码继续搞了。 通过查看代码流程,这句log是在MediaCodec中打印的,所以老套路,加log,加backtrace。 这里面就有一个不得不说的坑,tm MTK居然把一些log搞没,搞到我找了很久。. 在android本机中,Mediacodec.dequeueInputBuffer don';不归 Android; Chromecast音量进度条在电视上可见,但在我的android移动设备上不可见 Android; Android 谷歌放置自动完成安卓系统-不工作 Android Api Autocomplete; 在Android中计算进程的CPU使用率 Android Linux.

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原文 标签 android android-mediacodec. 以下代码偶尔会生成 java.lang.IllegalStateException: int iInputBufIndex = _mcDecoder.dequeueInputBuffer (TIMEOUT_USEC); 其中 _mcDecoder 是 MediaCodec 的一个实例。. 解码后的流是 H.264 视频。. 该代码大部分时间都运行良好。. 有没有办法主动检查 MediaCodec 的 .... java.lang.IllegalStateExceptionat at android.media.MediaCodec.native_dequeueOutputBuffer - 0x80001000 (OMX_ErrorInsufficientResources) #2436 Closed kartdroid opened this issue Feb 10, 2017 · 15 comments. 2022. 8. 14. · 最近公司要求提供一个支持Android硬件转码的底层库,所以自己从头去看了MediaCodec相关的知识,费了老大的劲终于完成了。目前的硬件转码使用MediaCodec进行解码和编码,然后使用FFmpeg进行文件封装(为了支持文件分块)。这篇文章主要介绍一些MediaCodec的基础知识和使用方式,后面会写如何利用FFmpeg. android使用MediaCodec实现异步视频编解码 最近在做屏幕投影的项目中需要对H.264的视频流做解码播放显示,项目基于Android 7.0的系统,虽然android系统已经提供了一套以MediaCodec为核心的硬解码实现方案。. mediaCodec.setParameters(param); P3: ¿La tasa de codificación de MediaCodec controlará la velocidad de codificación de acuerdo con la tasa de codificación que establecí? Como se muestra en la figura a continuación, este no es el caso en la medición. I have a ViewGroup that the PlayerView is placed in. ExoPlayer.prepare starts exoPlayer.setMediaSource (mediaSource). Then he learns that he should show ads in the ViewGroup, add a View on top of the PlayerView that allows you to play ads, pause exoPlayer. Apr 16, 2019 · while (is) { int inputIndex = mediaCodec.dequeueInputBuffer(-1); ByteBuffer inputBuffer = mediaCodec.getInputBuffer(inputIndex); inputBuffer.clear(); inputBuffer.put(PCMbuffer); mediaCodec.queueInputBuffer(inputIndex, 0, inputBuffer.limit(), 0, 0); int outindex = mediaCodec.dequeueOutputBuffer(bufferInfo, 1000); while (outindex >= 0) { ByteBuffer outputBuffer = mediaCodec.getOutputBuffer(outindex); mediaCodec.releaseOutputBuffer(outindex, false); outindex = mediaCodec.. /** * Write a media sample to the decoder. * * <p>A "sample" here refers to a single atomic access unit in the media stream. The definition of * "access unit" is dependent on the type of encoding used, but it typically refers to a single * frame of video or a few seconds of audio. {@link android.media.MediaExtractor} extracts data * from a stream one sample at a time.. android使用MediaCodec实现异步视频编解码 最近在做屏幕投影的项目中需要对H.264的视频流做解码播放显示,项目基于Android 7.0的系统,虽然android系统已经提供了一套以MediaCodec为核心的硬解码实现方案。. 通过MediaCodec解码出的PCM是按照Packed方式存储的,而FFmpeg解码出的PCM则可能是其中的任意一种。 所以为了更好的归一化处理,我们会对FFmpeg解码出的PCM进行重采样,统一采样成AV_SAMPLE_FMT_S16P格式,即:每个采样点是两字节的有符号short类型,并且按照Planar方. Java MediaCodec.queueInputBuffer - 2 examples found. These are the top rated real world Java examples of MediaCodec.queueInputBuffer extracted from open source projects. You can rate examples to help us improve the quality of examples. /** * Write a media sample to the decoder. * * <p>A "sample" here refers to a single atomic access unit in the .... Feb 10, 2017 · queueInputBuffer和dequeueInputBuffer是一对方法,两个要在一起使用哦。首先,这一对函数的应用场合是对输入的数据流进行编码或者解码处理的时候,你会通过各种方法获得一个ByteBuffer的数组,这些数据就是准备处理的数据。. Feb 13, 2018 · 2、dequeueInputBuffer,dequeueOutputBuffer返回值非0 dequeueInputBuffer返回-1,说明没有拿到可用缓冲区,一般来说下一帧再来请求输入缓冲区。 dequeueOutputBuffer返回-1,说明没有可用数据。. 2022. 8. 13. · MediaCodec+MediaMuxer: MediaCodec 与 MediaMuxer 结合使用同样能够实现录制的功能。 MediaCodec 是 Android 提供的编解码类,MediaMuxer 则是复用类(生成视频文件)。 从易用性的角度上来说肯定不如 MediaRecorder,但是允许我们进行更加灵活的操作,比如需要给录制的视频添加水印等各种效果。. The index of a client-owned input buffer previously returned in a call to #dequeueInputBuffer. offset Int32 The byte offset into the input buffer at which the data starts. info MediaCodec.CryptoInfo Metadata required to facilitate decryption, the object can be reused immediately after this call returns. presentationTimeUs. The following examples show how to use android.media.MediaCodec#queueInputBuffer() .These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.. The following examples show how to use android.media.MediaCodec#queueInputBuffer() .These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. 通过MediaCodec解码出的PCM是按照Packed方式存储的,而FFmpeg解码出的PCM则可能是其中的任意一种。 所以为了更好的归一化处理,我们会对FFmpeg解码出的PCM进行重采样,统一采样成AV_SAMPLE_FMT_S16P格式,即:每个采样点是两字节的有符号short类型,并且按照Planar方. OOP/编程基础:您不能调用不存在的方法。。。getResources方法属于某个类,如果不是从此类派生,则此方法不存在(在给定范围内),只需在适配器构造函数&imageView.setImageResource(mContext.getResources().getIdentifier(variableValue,“drawable”,getPackageName())中传递活动上下文即可;谢谢Zala,真的很有用。. Faced with problem like in issues #1997 #1383 #3032 This problem reproduces on some Samsung devices, for examples: SM-J120H Android 5.1.1. API 22 SM-N910F API 23 SM-G950F API 24 SM-G955F API 24 Used links for mp4 video, and some videos n. 1. Card main: This is caused by parameter settings during the codec process, which will be mentioned below. 2, the encoded AAC audio cannot be played: add ADTS Head to the AAC audio during the encoding process, and the code is reflected in the code. 3, the most headache, the transcoding speed is too slow, the transcoding song is 5 minutes.. Nov 21, 2016 · 运行程序并产生数据,这一行报错退出: int inBufferIndex = vencoder.dequeueInputBuffer(-1); 只捕捉到报错位置: android.media.MediaCodec .... MediaCodec encoder sample. GitHub Gist: instantly share code, notes, and snippets.. Android.Media.MediaCodec.DequeueInputBuffer Method Returns the index of an input buffer to be filled with valid data or -1 if no such buffer is currently available. Syntax. MediaCodec基本方法:. dequeueInputBuffer:返回要用有效数据填充的输入缓冲区的索引(等待获取缓存区 会阻塞). getInputBuffer:获取需要编码数据的输入ByteBuffer(根据dequeueInputBuffer获取的缓冲下标获取指定ByteBuffer). queueInputBuffer:告诉编码器数据以放入指定的. 2022. 8. 14. · 本文向你讲述如何用Android标准的API (MediaCodec)实现视频的硬件编解码。例程将从摄像头采集视频开始,然后进行H264编码,再解码,然后显示。我将尽量讲得简短而清晰,不展示那些不相关的代码。. 在android本机中,Mediacodec.dequeueInputBuffer don';不归,android,native,android-mediacodec,Android,Native,Android Mediacodec,各位, 当我开发android原生问题时,我遇到了一个问题 我编写了一个程序,使用本机mediacodec对yuv文件进行编码(使用硬件H264编码器) 当我遵循正常流程(从java层调用测试代码)时,它工作得很好 但. The following examples show how to use android.media.MediaCodec#queueInputBuffer() .These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. int: the start-offset of the data in the buffer. newSize. int: the amount of data (in bytes) in the buffer. newTimeUs. long: the presentation timestamp in microseconds. newFlags. int: buffer flags associated with the buffer. This should be a combination of BUFFER_FLAG_KEY_FRAME and BUFFER_FLAG_END_OF_STREAM.. GitHub Gist: instantly share code, notes, and snippets.. I use ffmpeg in android JNI, I need use mediacodec to decode some H264 stream, first (the DecodeMp4TestV2 function)I do a test to decode some video files like mkv. It works fine and I decode it successfully. But I need to decode some raw H264 stream rather then a video file or RTSP stream. It is a raw H264 stream with private header.. 通过MediaCodec解码出的PCM是按照Packed方式存储的,而FFmpeg解码出的PCM则可能是其中的任意一种。 所以为了更好的归一化处理,我们会对FFmpeg解码出的PCM进行重采样,统一采样成AV_SAMPLE_FMT_S16P格式,即:每个采样点是两字节的有符号short类型,并且按照Planar方. INFO_OUTPUT_FORMAT_CHANGED. The following examples show how to use android.media.MediaCodec #INFO_OUTPUT_FORMAT_CHANGED . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar. Example 1.. Here are my steps: Open demo app (release-v2 branch) Clear Dash -> HD (MP4, H264) I have the following result (see video) Configuration: -- Android Studio 2021.2.1 Patch 1 -- Emulator: Pixel 2 API 30, Android 11 Google Play | arm64. And yes, with this specific emulator (API 30), I can always reproduce the error, but not in other API. 我正在开发一个渐进式web应用程序,在手机上使用in. manifest.json. “display”运行它之后:“全屏”. 我发现,每当我使用虚拟键盘时,它都不会显示其下方的“软菜单”(我使用的是Pixel 2 XL)。. 以下是一些截图,您可以理解我的意思:. 当我想输入东西时,每当. 我正在开发一个渐进式web应用程序,在手机上使用in. manifest.json. “display”运行它之后:“全屏”. 我发现,每当我使用虚拟键盘时,它都不会显示其下方的“软菜单”(我使用的是Pixel 2 XL)。. 以下是一些截图,您可以理解我的意思:. 当我想输入东西时,每当. Java documentation for android.media.MediaCodec.dequeueOutputBuffer(android.media.BufferInfo, long). Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution. MediaCodec decode h264 example. GitHub Gist: instantly share code, notes, and snippets. BaseColumns; CalendarContract.AttendeesColumns; CalendarContract.CalendarAlertsColumns; CalendarContract.CalendarCacheColumns; CalendarContract.CalendarColumns. I use ffmpeg in android JNI, I need use mediacodec to decode some H264 stream, first (the DecodeMp4TestV2 function)I do a test to decode some video files like mkv. It works fine and I decode it successfully. But I need to decode some raw H264 stream rather then a video file or RTSP stream. It is a raw H264 stream with private header.. 在android本机中,Mediacodec.dequeueInputBuffer don';不归,android,native,android-mediacodec,Android,Native,Android Mediacodec,各位, 当我开发android原生问题时,我遇到了一个问题 我编写了一个程序,使用本机mediacodec对yuv文件进行编码(使用硬件H264编码器) 当我遵循正常流程(从java层调用测试代码)时,它工作得很好 但. Java documentation for android.media.MediaCodec.dequeueOutputBuffer(android.media.BufferInfo, long). Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution. android. 我在用android mediacodec对h264进行编码和解码时出现了错误的颜色,android,android-mediacodec,Android,Android Mediacodec,最近我正在学习如何使用mediacodec,它似乎有一些问题。. 我编写了一个演示,从相机预览中获取数据,将其编码为h264,并将h264解码到surfaceview上,但. android. 我在用android mediacodec对h264进行编码和解码时出现了错误的颜色,android,android-mediacodec,Android,Android Mediacodec,最近我正在学习如何使用mediacodec,它似乎有一些问题。. 我编写了一个演示,从相机预览中获取数据,将其编码为h264,并将h264解码到surfaceview上,但. 在android本机中,Mediacodec.dequeueInputBuffer don';不归,android,native,android-mediacodec,Android,Native,Android Mediacodec,各位, 当我开发android原生问题时,我遇到了一个问题 我编写了一个程序,使用本机mediacodec对yuv文件进行编码(使用硬件H264编码器) 当我遵循正常流程(从java层调用测试代码)时,它工作得很好 但. Dec 03, 2013 · Also, you're setting the format to COLOR_FormatYUV420SemiPlanar; in general you can't assume that. You need to query the codec for the list of supported formats, determine whether the input needs to be planar or semi-planar, and then format the buffer input accordingly. The buffer-to-buffer and buffer-to-surface tests in the EncodeDecodeTest .... . 2013. 4. 21. · MediaCodec class can be used to access low-level media codec, ... After a successful call to start() the client "owns" neither input nor output buffers, subsequent calls to dequeueInputBuffer(long) and dequeueOutputBuffer(MediaCodec.BufferInfo, long) then transfer ownership from the codec to the client. OOP/编程基础:您不能调用不存在的方法。。。getResources方法属于某个类,如果不是从此类派生,则此方法不存在(在给定范围内),只需在适配器构造函数&imageView.setImageResource(mContext.getResources().getIdentifier(variableValue,“drawable”,getPackageName())中传递活动上下文即可;谢谢Zala,真的很有用。. public final int dequeueOutputBuffer ( MediaCodec.BufferInfo info, long timeoutUs) Added in API level 16 Dequeue an output buffer, block at most "timeoutUs" microseconds. Returns the index of an output buffer that has been successfully decoded or one of the INFO_* constants below. Parameters public final void flush () Added in API level 16. The MediaCodecclass first became available in Android 4.1 (API 16). It was added to allow direct access to the media As such, it provides a rather "raw" interface. sources, only the former is public. In Android 4.3 (API 18), MediaCodecwas expanded to include a way to provide input through a Surface(via the. Nov 21, 2016 · 运行程序并产生数据,这一行报错退出: int inBufferIndex = vencoder.dequeueInputBuffer(-1); 只捕捉到报错位置: android.media.MediaCodec .... Another new class introduced in Jelly Bean is the android.media.MediaExtractor. It is pretty clear what it is all about, extract the metadata from your media and a lot more.. private void drainAudio(boolean endOfStream) { // LogUtils.v(String.format("drainAudio %b", endOfStream)); ByteBuffer[] inputBuffers = mEncoder.getInputBuffers(); int bufferIndex = mEncoder.dequeueInputBuffer(-1); // wait indefinitely if (bufferIndex >= 0) { ByteBuffer inputBuffer = inputBuffers[bufferIndex]; inputBuffer.clear(); int len = mAudioRecord.read(inputBuffer, SAMPLES_PER_FRAME * 2); // read blocking long ptsUs = System.nanoTime() / 1000; if (endOfStream) { mEncoder .... 2022. 8. 11. · MediaCodec的编解码流程. MediaCodec采用异步方式处理数据,并且使用了一组输入输出buffer(ByteBuffer)。. 1.使用者从MediaCodec请求一个空的输入buffer(ByteBuffer),填充满数据后将它传递给MediaCodec处理。. 2.MediaCodec处理完这些数据并将处理结果输出至一个空的输出buffer. 2022. 8. 14. · 本文向你讲述如何用Android标准的API (MediaCodec)实现视频的硬件编解码。例程将从摄像头采集视频开始,然后进行H264编码,再解码,然后显示。我将尽量讲得简短而清晰,不展示那些不相关的代码。.

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通过MediaCodec解码出的PCM是按照Packed方式存储的,而FFmpeg解码出的PCM则可能是其中的任意一种。 所以为了更好的归一化处理,我们会对FFmpeg解码出的PCM进行重采样,统一采样成AV_SAMPLE_FMT_S16P格式,即:每个采样点是两字节的有符号short类型,并且按照Planar方.

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