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Questions tagged [android-mediacodec]

MediaCodec is a class from the package "android.media" of Android API that can be used to access low-level, native media codec, i.e. encoder/decoder components.

MediaCodec is a class from the package android.media of Android API that can be used to access low-level, native media codec, i.e. encoder/decoder components. Along with the common IO it supports input data of the following decoder mime types:

  • "video/x-vnd.on2.vp8" - VPX video (i.e. video in .webm)
  • "video/avc" - H.264/AVC video
  • "video/mp4v-es" - MPEG4 video
  • "video/3gpp" - H.263 video
  • "audio/3gpp" - AMR narrowband audio
  • "audio/amr-wb" - AMR wideband audio
  • "audio/mpeg" - MPEG1/2 audio layer III
  • "audio/mp4a-latm" - AAC audio
  • "audio/vorbis" - vorbis audio
  • "audio/g711-alaw" - G.711 alaw audio
  • "audio/g711-mlaw" - G.711 ulaw audio

The reference to the API docs: http://developer.android.com/reference/android/media/MediaCodec.html

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How can the https://github.com/google/grafika be used to reencode existing videos to have all keyframes

I am trying to re-encode existing video frames to create a video which will have all frames as keyframes(I-frames). The current grafika project has a CameraCaptureActivity which in turn uses VideoEncoderCore to encode videos. I have modified this to…
saurabytes
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MediaCodec::CreateByType "video/avc" fails on nexus 7

I am trying to encode h264 using MediaCodec in nexus 7 device and after re running ( after closing ) my encoder process several times I get a failure when trying to create MediaCodec ( MediaCodec::CreateByType(looper, "video/avc", true) ). the log…
jacob
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Playback of Streams Are Taking Longer with Android KitKat (AudioTrack + MediaCodec Solution)

I am using MediaCodec + AudioTrack solution to stream MP3 music. It was working fine until the recent KitKat update. With KitKat, the playback begins after approximately 14-15 seconds, whereas on JellyBean it was taking no more than a few seconds.…
burakk
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Encoding images into a movie file

I am trying to save jpgs into a movie, I have tried jcodec and alothough my s3 plays it fine other devices do not. including vlc and windows media I have just spent most of the day playing with MediaCodec, although the SDK is so high, it will help…
RuAware
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How to configure specific GOP size in MediaCodec with KEY_I_FRAME_INTERVAL parameter?

My issue is the next: I know MediaFormat.KEY_I_FRAME_INTERVAL is the interval in seconds (Integer) where the I-Frame is going to appear. So if i give the value to 1, and my frame rate is 15, then the GOP size is going to be 15, and if the frame rate…
javiaf
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How to capture and encode audio in a video system_Android

I am trying to build a opensource video system in android, since we have no access to the data in a closed system. In this system, we can modify the raw data captured by camera. I used MediaCodec and MediaMux to do the video data encoding and muxing…
Brendon Tsai
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trying to develop a video chat application using the h264 encoder

I am trying to develop a video chat application using the h264 encoder for video and MediaCodec Lib. The video should be shown on both client and server. Now I need a tutorial to learn about it. It means that how can I show my camera video on my…
mori
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Is it impossible to Decode Raw AAC byte stream with MediaCodec on Android4.1 (API 16)?

Is it impossible to Decode Raw AAC byte stream with MediaCodec on Android4.1 (API 16)? Do I need to add some header?? This is the subsequent Quesion of PCM -> AAC (Encoder) -> PCM(Decoder) in real-time with correct optimization Probably related…
user1028880
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Android MediaCodec API - Music Plays on Emulator, Not on the Device

The code given below works fine on the emulator, but not the device. I found the following lines that looked suspicious to me: V/MediaExtractor(5030): Autodetected media content as 'audio/mpeg' with confidence 0.20 V/ChromiumHTTPDataSource(5030):…
burakk
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Video encoder(mediacodec with encoder surface) re-initialisation for orientation change

Hi I am asking this question with reference to the code at https://github.com/google/grafika . I am trying to re-initialize my encoder during orientation change in order to adjust the aspect ratio of encoded frames.. UPDATE: Here is my…
Kevin K
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Android Mediacodec (OMX.ST.VFM.H264Enc)

I have a Samsung Galaxy S3 Mini (GT-I8190 @ 4.1.1) and I am unable to encode raw video frames into an h.264. I've tested on several other devices with different encoder vendors and I was able to get the working adding some vendor/version specific…
Agah PT
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Problems with Android MediaCodec on Nexus 10 specifically

I have written an android app that streams h.264 frames from a mobile-dvr/nvr and the solution works on all of the devices that I have tested on except for the Nexus 10. It successfully streams video on galaxy devices, the Nexus 7, and multiple…
Kiel Wood
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Does MediaCodec in Android support audio encodec?

I am trying to build a video system. I get the data from Camera through Preview, then I give the data to Mediacodec and let it do the video encoding job. Now I am focus on the audio part. I am not sure which API to use for the audio caperture and…
Brendon Tsai
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Set the start frame MediaCodec

I would like to know if there is a way to set the first frame that I want to decode. Lets say that I want to start from frame number 300, Is there a way to set frame 300 as the first frame? or I there is a need to go through all the frames until I…
user2235615
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What is the color type that i get from Buffer, using MediaCodec

I'm followed this example in order to understand how to work with MediaCodec. This example works fine for me except 1 thing, I don't know how to figure what is the color type after I'm grabbing the frame from the buffer. this is how I grab the…
user2235615
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