How can i get a pcm mp4 with FFmpegFrameRecorder?I see it suppout pcm format.I try like below:
mFrameRecorder = new FFmpegFrameRecorder(mVideo, videoWidth, videoHeight, 1);
mFrameRecorder.setFormat("mp4");
mFrameRecorder.setSampleRate(sampleAudioRateInHz);
mFrameRecorder.setFrameRate(frameRate);
// Use H264
mFrameRecorder.setVideoCodec(avcodec.AV_CODEC_ID_MPEG4);
mFrameRecorder.setAudioCodec(avcodec.AV_CODEC_ID_PCM_S16LE);
// See: https://trac.ffmpeg.org/wiki/Encode/H.264#crf
/*
* The range of the quantizer scale is 0-51: where 0 is lossless, 23 is default, and 51 is worst possible. A lower value is a higher quality and a subjectively sane range is 18-28. Consider 18 to be visually lossless or nearly so: it should look the same or nearly the same as the input but it isn't technically lossless.
* The range is exponential, so increasing the CRF value +6 is roughly half the bitrate while -6 is roughly twice the bitrate. General usage is to choose the highest CRF value that still provides an acceptable quality. If the output looks good, then try a higher value and if it looks bad then choose a lower value.
*/
mFrameRecorder.setVideoOption("crf", "28");
mFrameRecorder.setVideoOption("preset", "superfast");
mFrameRecorder.setVideoOption("tune", "zerolatency");
but it crashed with error msg :
library "/system/lib/libdl.so" ("/system/lib/libdl.so") needed or dlopened by "/system/lib/libnativeloader.so" is not accessible for the namespace: [name="classloader-namespace", ld_library_paths="", default_library_paths="/data/app/com.github.crazyorr.ffmpegrecorder-2/lib/arm:/data/app/com.github.crazyorr.ffmpegrecorder-2/base.apk!/lib/armeabi", permitted_paths="/data:/mnt/expand:/data/data/com.github.crazyorr.ffmpegrecorder"]
