formatfactory cannot mux long file audio

Private static final int TIMEOUT_USEC = 10000

** How long to wait for the next buffer to become available.

Private static final Boolean INFO = true Private static final Boolean DEBUG = false Private static final String TAG = 'vvsLog' Private static final int OUTPUT_AUDIO_SAMPLE_RATE_HZ = 44100 // Must match the input stream Private static final int OUTPUT_AUDIO_AAC_PROFILE = //not using this, getting from input format Private static final int OUTPUT_AUDIO_BIT_RATE = 128 * 1024 not using this, getting from input format Private static final int OUTPUT_AUDIO_CHANNEL_COUNT = 2 // Must match the input stream. Private static final String OUTPUT_AUDIO_MIME_TYPE = 'audio/mp4a-latm' // Advanced Audio Coding Private static final int MAX_BUFFER_SIZE = 256 * 1024 Some of the relevant fields: private MediaFormat audioFormat What keeps happening is that the muxer creates the mp4 from the extracted video track and the extracted -> decoded -> encoded audio track, but while the video plays fine, the audio starts with a short burst of noise, then what seems like the last couple seconds of audio data playing normally (but at the beginning of the video), then silence for the rest of the video. However, the problem I am having is that I cannot seem to get the audio decoding/encoding process right. I don't need to edit the video, so I assume I can simply use MediaExtractor to extract and mux the video track. My first attempt is simply to extract, decode, encode and mux audio without trying to edit any of the audio samples - if I can do this I am fairly certain that I can edit the decoded samples as desired. I am trying to adapt the code found in ExtractDecodeEditEncodeMuxTest.java in order to extract audio and video from a mp4 recorded via Cordova's, decode the audio, edit the decoded audio samples, encode the audio, and mux the audio back with the video and save as an mp4 again.

Formatfactory cannot mux long file audio