Android mediacodec decoder h264 example. slow avcodec_decode_video2, ffmpeg on android.

Android mediacodec decoder h264 example If you have a high enough api level you should use the async decoder callbacks android 21+. Related questions. Ask Question Asked 10 years, 8 months ago. This encoder doesn't allow using resolutions that aren't a multiple of 16. The Application is Up and running for the Jeallybean (API 17). Decoding h264 ByteStream on Android. Android 4. I'm reading it can be done via MediaCodec but I'm a bit confused and the documentation is not explaining much. Android provides a way to query the supported encoding profiles. 3 explained in following link of bigflake. The drone sends a byte array each time that contains NAL units. Instead, i use mp4parser to get the samples from the mp4 files. You can take a look at DecodeEditEncode, a great starting point for decoding and re-encoding using surfaces (output surface for decoder -> input surface for encoder). java but still not working. I've shared the code for decoder thread which has got the main logic. Contribute to Enoch-Liu/NdkMediaCodecDemo development by creating an account on GitHub. I have tested these images on a SurfaceView (playing them in series) and I can see them fine. I tried 3 simultaneous video(h264) decoders using MediaCodec APIs on 3 SurfaceViews. decoder). The input stream comes from a TCP connection. The best way to figure out what the MediaCodec decoder wants is to look at what the MediaCodec encoder emits. I don't think onError() gets called in the case of bad input data. Android MediaCodec AVC / H264 generates invalid keyframe and codec config. In Android SF framework, the codecs are registered through media_codecs. Prior to API 21, you'd do ByteBuffer inputs[] = codec. google. decoder. 0. createDecoderByType(format. 264 stream, modifying the frames with a GLES shader. 1 Media codec api. It uploads the "decoding latency", as a test result into a Firestore database. I recieve the raw data in byte arrays, each of the array is NAL unit (starts with 0x00 0x00 0x00 0x01), a How can I properly pack a H264 byte stream into RTP packets so I can receive frames with FFMPEG? When I start the FFMPEG receiver, it pumps out a lot of errors like these: Invalid UE golomb code [h I have built a simple example app that uses AMediaCodec to decode h264 streams. You can see the exact format the codec wants by logging a hex dump. I want to play the raw h264 output of MediaCodec with VLC/ffplay. 264, H. I need some help or insights as I'm facing decoding issue with h264 frames. I see the custom H264 decoding in the docs for ml_media_decoder, but I'm wondering if ML2 supports Android's MediaCodec (which I would be able to access through libavcodec). 264 streaming to Quicktime which doesn't display the video if a start code is present as RTP standard mandates that first byte is the NALUtype. The Android using MediaExtractor and MediaCodec from a socket (streaming mpeg) Next you didnt instantiate the decoder correctly. You can find a collection of useful examples on the bigflake site. PID: 29410 java. An example of this is H. The server encoded frames which is sRGB. Was able to successfully decode and render both audio and video streams using Android MediaCodec class using synchronous approach[queueInputBuffer and deququeInputBuffer]. And you should also use mediaCodec. Reset(); on any exception you should try your best to reset the decoder back to its original state as best as you can: I am decoding an h264 video stream from a drone on Android using Mediacodec. All audio-visual components are registered as OMX components. android; video; The way to convert H. doSomething(). Skip to main content. Various Resolutions which I need to decodes are : 480P at 30/60 FPS 720P/I at 30/60 FPS 1080P/I at 30/60 FPS I have a project where I have been asked to display a video stream in android, the stream is raw H. 264 and I am connecting to a server and will receive a byte stream from the server. dequeueOutputBuffer I correlated the log statements using presentationTimeUs. Video streaming example using FFmpeg framework and Android This is example how to stream H264 encoded video with FFmpeg framework and how decode H264 video on Android phone using MediaCodec API. I am receiving H. VIDEO. For example, the extractor get 210 frames in a 7 second video, but the decoder only output the last 180 frames. Update[2015-06-03] Per pskink's tip, I ran a piece of code to extract all the decode's MIME types on an Asus MeMO tablet. It's your responsibility to pace the frames. cpp This is my first question so please let me know if I missed anything! Using Android API 16's new Media Codec implementation to try and decode a video so that I can send frames to be applied as a t Hi, I'm decoding h264 streams from the user's desktop using FFMPEG/libavcodec, which currently does it on the CPU. Android MediaCodec encode raw video to h264. Sign in Product GitHub Copilot. I j I have been trying to decode a video file which is encoded via H264 encoding with Android's MediaCodec and tried to put the output of the decoder to a surface, but when I run the app it shows a black surface and in DDMS logcat I see that decoder timed out. media codec sample implementation in android 4. I'm using a single MediaMuxer instance containing one AAC track I am using Android MediaCodec API The SW encoder OMX. As you'd have realized by now, MediaCodec decoding to buffer does not work while decoding to surface works. I am trying to use the MediaCodec API to decoding H264 stream with Android client. queueInputBuffer(index, ). I have troubles with decoding and drawing raw h264 data with MediaCodec on the TextureView. Then you must try and catch all uses of the mediaCodec. As i see you are correctly stopping and starting your I've recently came across Android Media Codec API and wanted to try out a sample project have gone through the documentation I've understand the flow and I know I have to use media extractor, media encoder and media mixer to clone a video and should apply effects and filters on surfaces however im struggling integrating them and would like to understand them I am experiencing issues when trying to extract and decode H264 video using Androids software decoder (OMX. I have a few gue If I manually set the SPS/PPS as the first packet NOT using the example above, I do get the -3 "output buffers have changed" which is meaningless since I am using API 20. It seems MediaCodec is hard to use and not popular. 8 How to decode H264 over RTP using MediaCodec Api in Android. I am trying to use the MediaCodec API for decoding without using the MediaExtractor API. MP3 audio or H. 264 decoding for a research project, to test a self-defined protocol. How to decode H264 over RTP using MediaCodec Api in For my Quadcopter project I'm triying to display a raw H. I am trying to use MediaCodec to save a series of Images, saved as Byte Arrays in a file, to a video file. convert raw byte data to h264 video using ffmpeg libs. 264 remote stream. dequeueOutputBuffer(mBufferInfo, TIMEOUT_USEC); When the remote H264 Skip to main content I've tried running for example ffmpeg -i 1_5111632628432240784. Media codec api. queueInputBuffer At line 244 after. I got a DPB(Decoded Picture Buffer) Size 8 when I check the dumped h264 stream with Codecvisa, looks like a hint for the extra buffering? I also performed some simple testing of MoviePlayer. Automate any Android native mediacodec decode/encode demo. I am developing an Android hardware accelerated video decoder for decoding real time H264 Annex B stream. I am using mediacodec to decodec a h264 stream on samsung S6, android 5. I put a log statement at these locations: At line 203 just before. For that I've attempted as follow. If you want to be sure the frame is released, for example when you plan to decode a single frame, you can use. MP4 -c:v h264_mediacodec -c: So my question is, how can I use hardware accelerated video decoding and encoding using ffmpeg on Android in a terminal? ffmpeg; hardware-acceleration; Share. 1 Video decoder Configure using MediaCodec. Base Kotlin. 264 video), and may encode or decode. Find and fix vulnerabilities Actions. Any Mediacodec expert out here that can help me? Firstly, thanks for taking time to read this. 264 stream on my android phone. h264 encoded live video data transmitted via UDP encapsulated in RAW or RTP The Android's MediaCodec framework is a part of Android's multimedia framework that provides access to low-level media encoder & decoder components. I did some researche in how decoders work and created the foll I'm a bit new when it comes to MediaCodec (and video encoding/decoding in general), so correct me if anything I say here is wrong. sample code: int decoderStatus = decoder. Notice that you never touch more than one element in inputs[] at a time, and you're only I need hardware-accelerated H. I'm modifying an Android Framework example to package the elementary AAC streams produced by MediaCodec into a standalone . Because the decoder just decode the data in encoded buffer, I think there is any timestamp info could be parsed in this encoder's output H. This is my follow up question to below thread Slow H264 1080P@60fps Decoding on Android Lollipop 5. There are many examples for doing this in Synchronous Mode on sites such as Big Flake, Google's Grafika, and dozens of answers on StackOverflow, but none of them support The one I use is the Nexus 5x from LG. I am using the MediaFoundation H264 decoder to decode every frame sent from the android The following is the requirement of the MF H264 Decoder: Media samples contain H. Use Android MediaCodec. 2 On the path of debugging the root cause of above issue, Where can I get OMXCodec sample code to decode my video. 2014 : first create eclipse project. I have looked at many examples using MediaCodec, and here is what I understand (please correct me if I am wrong):. Improve this question. ffmpeg -re -f gdigrab -s 1920x1080 -threads 4 -i desktop -vcodec libx264 -pix_fmt yuv420p -tune zerolatency -profile:v baseline -flags global_header -s 1280x720 -an -f rtp rtp://192. In standard android distribution, an example media_codecs. On the Lenovo Yoga 10 the codec is OMX. Follow Android MediaCodec decode h264 raw frame. IllegalStateException at android. 3. 1、The Camera setting: For some videos, a lot of frames are missing during the decoding. media. h264) encoded by MediaCodec to mp4 container by using ffmpeg (libavformat). 6:1234 Example app that use ffmpeg library to play video. 264 bitstream data with start codes and has Decoding an RTP stream with H264 data on Android Using MediaCodec. mp4 file. I think Android doesn't have any RTSP API I could use nor I can find any RTSP libraries for Android. What I'm trying to do is to get the frames from the SurfaceView and encode them in H264. Using the MediaCodec API in android you can call getCodecInfo() once you have chosen an encoder component. Readme License. createDecoderByType (String type)? Google's document only gives a partial list. I performed some simple timing of MoviePlayer. Use MediaCodec Decoder examples. mediaCodec. java in the Grafika MediaCodec sample code running on a Nexus 5. toString()); with . From Grafika project, file DoubleDecodeActivity. slow avcodec_decode_video2, ffmpeg on android. "Questions asking us to recommend or find a book, Android MediaCodec decode h264 raw frame. 0. Or if there's a way I can just swap out I recieve h264 data from server, I want to decode this stream using mediacodec and texture view on android. mp4 in Termux in different variations, which I am currently using a TextureView for rendering multiple streams in one activity using collection view cells on android (Sorry for ios terminology there). For an example of a MediaCodec-based video player that controls the playback rate, Probably simply because of bad input data. code. It operates on "raw" data, so any file headers MediaCodec provides access to low-level media encoder/decoder (CODEC) components for processing audio, video, and compressed data. Get InputBuffers from MediaCodec object -> fill Real time video decoding on android. As I have Search on the web, I have found a few ways to perform hardware-accelerated video decoding on Android. I'm trying to convert my phone camera output to . I came over several keywords like OMXCodec, Android's OS stagefright and ffmpeg's stagefright, MediaCodec API, GStreamer. 264 stream using Android's MediaCodec interface. dequeueOutputBuffer(MediaCodec. h264. 264 video data received through a websocket with an async Android MediaCodec. Replace line . 264 / avc coded video content. I have tried running CameraToMpegTest sample on Android 4. 4. Use ffmpeg libstagefright (overview of libstagefright) or use libstagefright in the OS directly, like here. Take a look especially at this method. Essentially, one NAL unit per buffer, with a codec-specific data chunk that contains the SPS and PPS data. My implementation is completed (retrieving encoded streams using callback, decode and Tried both H264 high profile and baseline. configure(format, surface, null, 0); break;}} if (decoder == null) {Log. The app I'm writing originally consisted of two texture views and the logic to decode and display the frames. Ask Question Asked 8 years, 8 months ago. 264 stream output by MediaCodec not playble. AVC. 1. I'm trying to decode h. I am using MediaCodec. As it is not directly supported by Android, I am configuring my own decoder. mediacodec ExtractMpegFramesTest example mismatch. Modified 8 years, 8 months ago. private void editVideoData(VideoChunks inputData, MediaCodec decoder, OutputSurface outputSurface, InputSurface inputSurface, MediaCodec encoder, There is no guarantee that MediaCodec handles presentation time stamps correctly before Android 4. I do recall that there were problems with the timestamp handling in the AVC codecs from certain vendors. xml can be found here. I take reference from this example EncodeDecodeTest. For now, i am only using h. java in the Grafika MediaCodec sample code. I am trying to use the MediaCodec API for decoding live-stream screen capture from PC by ffmpeg. I have parsed the file into valid frames first [reading 4 bytes first which indicates the length of the upcoming frame //init decoder MediaCodec decoder = MediaCodec. Finding supported profile/level pairs. h264 files stored in I am trying to decode a video from a file and encode it into a different format with MediaCodec in the new Asynchronous Mode supported in API Level 21 and up (Android OS 5. On all previously tried Android devices this encodes to Baseline profile which is what I need. 264 and draw onto Using MediaCodec and a SurfaceTexture to display an H264 stream - Kirkify/H264-Android-Decoder A single instance of MediaCodec handles one specific type of data (e. 8. Basically I'm. g. 9 When decoding video with MediaCodec, you are not the one setting the PTS, you are the one receiving the PTS. However I am successfully able to I am using MediaCodec low level Api in android to decode h264 raw stream received from IP CAMERA. It works fine but the issue is when you for example rotate the device there will be surface_destroyed followed by surface_available. 10. 3. MediaCodec. Not sure what your RTPFrame class is doing to each frame, but in my experience, you need the NALU headers. decoder = MediaCodec. createDecoderByType(mime); decoder. Where can I find the complete list of the type used in MediaCodec. codec = MediaCodec. . h264 Raw Video Stream Format. 264 streams. 264; Share. java. I can use the same path with MediaPlayer class and it works but it is very important for me to use MediaCodec class instead. My question is how to handle input buffers when there is no new encoded data to decode? libstreaming is an API that allows you, with only a few lines of code, to stream the camera and/or microphone of an android powered device using RTP over UDP. Navigation Menu Toggle navigation. However, Androids MediaCodec class crashed in every atempt, so I tried to create a minimal working example with only one surface, based on working code I've written before. If you post some examples of your decoderInput contents (first dozen bytes) then I'll compare For my Android h. mp4 file to Bitmap, and the DecodeEditEncodeTest decodes and re-encodes an H. xml. Android Media codec for video encoding and decoding from C++ NativeCodecReader opens and decodes a media file (such as mp4 with h264 or webm) You can query OpenCV's cv::Mat via read() Frame counts are calculated from video duration / Search for jobs related to Android mediacodec decoder h264 example or hire on the world's largest freelancing marketplace with 22m+ jobs. 0), close to being unusable. Playback of different . e("DecodeActivity", "Can't find video info!"); return;} Example contains: Creating surface and associated canvas to draw onto; Binding surface to encoder to produce H. The It totally depends on the device. Ex : SimplePlayer. 4. In your case, 1920x1080, the height 1080 isn't evenly dividable by 16, and thus isn't acceptable for this encoder. When I decode the stream I don't send any SPS/PPS NALs or an initial frame. 264 stream. Getting the raw packets using a socket and parsing the received data to NAL units. 264 samples; Creating surface view and binding decoder to it; Configuring decoder to accept H. Raw stream from IP camera , receiving on TCP/IP connection. I am building a screen sharing app and trying to receive raw H264 video stream from a socket and displaying it using surfaceview by decoding using MediaCodec class. KEY_MIME)); If i come up I use MediaCodec to decode h264 stream from the server, and render frames. 2. Related. 1 Android h264 decode non I am trying to run the example code of Media Codec API with H264 Encoder on 4. There is a lot of legacy code, so just for reference. 0 Lollipop). I am developing H264 H/W accelerated video decoder for android. MTK. Requirements android ffmpeg video-player decoding video-streaming mediacodec h264-decoder h264-parser Resources. The decoder won't start until it gets the SPS/PPS. configure (format I didn't find too much examples for encoding with MediaCodec just a few samples code for decoding Thanks a lot for the help. How to determine a video file's framerate with MediaCodec, Using MediaCodec and a SurfaceTexture to display an H264 stream - Kirkify/H264-Android-Decoder. ENCODER. getString(MediaFormat. 5. Write better code with AI Security. stop every time you put Contribute to PhilLab/Android-MediaCodec-Examples development by creating an account on GitHub. With it, you can incorporate features like low-latency decoding to enhance your app’s Library for live video playback with ultra low latency (below 10ms) on android devices. Want some example code for Android native app/service that utilize MediaCodec MediaMuxer in C++ Can someone give some example code about using MediaCodec to decode a rtsp stream, I read document and find too much but no luck. java; android; video; stream; h. Camera preview is setted to NV21. This encodes the video as High Profile which gives a problem for the receiving device. For decoding you can still use MediaCodec (if you render the results to a surface, you will need to use glReadPixels, which is slow, to get the data back to cpu). I am writing an Android application which mux a H264 stream (. I have the SPS and PPS decoder = MediaCodec. The decoder stores the result into oes texture. To decode stream , My code is : @Over I am implementing a decoder using MediaCodec Java API for decoding live H. use MdieCodec. 264 decoder i do it slightly different to your setup. Modified 10 years, How to use MediaCodec class to decode H. You shouldn't try to fetch all the buffers. On adding 4th decoder to 4th SurfaceView to Nexus 7 with A we are trying to decode AVC/h264 bitstreams using the new NdkMediaCodec API. 9 I want to decode and display a raw h264 video byte stream in Android and therefore I'm currently using the MediaCodec classes with Hardware Decoder configured. I have also tried using avcodec_find_decoder_by_name("h264_mediacodec"), also returns nullptr. Android MediaCodec video/avc Decoder. AAC, MP4 decoder example. I got the data from the server , parssing it to get the SPS , the PPS and the video frame data, then I passed this data to the mediacodec , but the function dequeueOutputBuffer(info, 100000) always returns -1 and I get dequeueOutputBuffer timed out. I'm posting this question as most of other related posts to this do not provide clear steps. The first step you will need to achieve to start a streaming session to some peer is called 'signaling'. But for me it looks more like this: I'm trying the same by feeding the previous sample in a loop until I get another sample from my source to my MediaFoundation h264 hardware encoder. This is because the CTS tests that confirm the PTS behavior were not added until then. 264; android-mediacodec; or ask your own question. 263, AAC and AMR. MP4 : My Video. I am trying to create hw accelerated decoding on Android through JNI and following this example but, unfortunately, avcodec_get_hw_config returns nullptr. 1, found the input buffer to mediacodec must start with "0001"(and don't need to set pps, sps), or the ACodec will report e I've read everything I can get my hands on here and everywhere else about decoding a video stream using MediaCodec. 264 encoded data from native layer using a callback (void OnRecvEncodedData(byte[] encodedData)), decode and render on Surface of TextureView. 0 or more recent is required. So I managed to download the I-Frame file from their website and fed it to the decoder before any other access unit. Many of the examples use features introduced in API 18, such as Surface input Example of video: screen of video. encoder is very limited at the moment (edit: On Android 5. Hot Network Questions I over salted If you can accept a slower solution, OpenCV has a nice port/integration on Android, with code samples and all, even encoding back to h264 using ffmpeg. Example: simple example app. Supported encoders include H. Contribute to HausnerR/ffmpeg-android-example development by creating an account on GitHub. 3 emulator. It isn't working, I just see a blank screen. Is there a relatively easy way of feeding video stream from We have an Android app that encodes video into H264. It is similar to VideoToolbox on I've tried running for example ffmpeg -i 1_5111632628432240784. 1. The issue seems to span multiple devices. Android has a good reference example of how to do it in Native C++ Application. mp4 on Android is with the MediaMuxer class, introduced in I'm having some problems trying to do MJPEG stream decoding using Android MediaCodec API. So far, I've come around with some libraries MediaCodec, Stagefright, OpenMax IL, OpenMax AL and FFmpeg. For example, on a Galaxy S3, I get the following errors: E/ACodec(17651): configureCodec multi window instance fail appPid MediaCodec decoding to buffer does not work while decoding to surface I am trying to decode a h264 file using media codec. I use the "markerBit" as a border for the frames. In particular, the ExtractMpegFramesTest demonstrates how to decode a . The sample code below exhibits the issue and is a fairly standard example of using the android MediaCodec and MediaExtractor classes. 5 Raw H. h. After a bit research, it seems I need to get my hands dirty to do this. It's free to sign up and bid on jobs. HW-accelerated decoding via the MediaCodec api; Receiving,Parsing and decoding is done in cpp code (multi-threaded). When you call releaseOutputBuffer() with the "render" flag set, you are telling the system to render the frame as soon as possible. Encoding a video with MediaCodec on Android. native_dequeueOutputBuffer(Native Method) at android. Then index = codec. Here is a comparison of the decoding latency for Yes, you can configure a MediaCodec decoder with an output surface and use GLSurfaceView to apply changes through shaders, this is the best way because you use just the necessary memory, especially for color transformation (you can't know in advance what color your decoder use), and for YUV2RGB transformation. 264 to . Ideally, a decoder should be capable of searching for a start code and be I tried setDataSource() in MediaExtractor class but it doesn't work with RTSP path. But when setting up an encoder I cannot find the way to specify the desired profile to be used. java:1041) at com My goal is to play a raw H264 stream being fed through a tcp/ip port on an Android device (a Samsung S10) using the MediaCodec class. I think your using more modern api level. Android MediaCodec decode h264 raw frame. Thank you for your focus! I want to use Android MediaCodec APIs to encode the video frame which aquired from Camera, unfortunately, I have not success to do that! I still not familiar with the MediaCodec API。 The follow is my codes,I need your help to figure out what I should do. After a bit research, I've found that - I am decoding H. dequeueInputBuffer() would return a buffer index, and you'd use inputs[index], and finally submit the buffer with codec. Supports playback of . Here is an excerpt from logcat: I'm manually reading a RTP/H264 stream and pass the H264 frames to the Android MediaCodec. I'm decoding a raw h264 received from a wifi cam on android. android mediacodec: real time decoding h264 nals. MP4 -c:v h264_mediacodec -c:a aac -b:v 1M -g 60 test. The images are in the payload of the HTTP and I'm able to draw them on a SurfaceView. That is, the NALU you put into the input buffers. lang. My code is based on the Android CTS test DecodeEditEncodeTest and it works great on the Nexus 4 not even the Nexus 7 II on 4. h264 es format but MediaCodec encoder stuck on TRY_AGAIN_LATER output buffer state after first frame. For Sender (PC ffmpeg) i use this command. The drone document indicates that the IDR-Frame is not included in the returned byte array. 168. Everything is working just fine on my test devices, but on one customer device that I dont' have access to (Samsung Tab S) there are strange issues. Skip to content. getInputBuffers(). khvovg cam lohhpf disgu xdpch wua elona kgj ocrkw abcz