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Fix for missing changes in Opus JNI code

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This commit is contained in:
Iwan Timmer
2014-01-07 21:20:55 +01:00
parent 5b29a2ef7b
commit 9dcd75b9dd
3 changed files with 16 additions and 15 deletions
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15
jni/nv_opus_dec/nv_opus_dec.c
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@@ -2,6 +2,8 @@
#include <opus.h>
#include "nv_opus_dec.h"
#include <stdio.h>
OpusDecoder* decoder;
#ifdef _WIN32
@@ -37,8 +39,8 @@ int nv_opus_get_channel_count(void) {
}
// This number assumes 2 channels at 48 KHz
int nv_opus_get_max_out_bytes(void) {
return 1024*nv_opus_get_channel_count();
int nv_opus_get_max_out_shorts(void) {
return 512*nv_opus_get_channel_count();
}
// The Opus stream is 48 KHz
@@ -46,20 +48,17 @@ int nv_opus_get_sample_rate(void) {
return 48000;
}
// outpcmdata must be 11520*2 bytes in length
// outpcmdata must be 5760*2 shorts in length
// packets must be decoded in order
// a packet loss must call this function with NULL indata and 0 inlen
// returns the number of decoded samples
int nv_opus_decode(unsigned char* indata, int inlen, unsigned char* outpcmdata) {
int nv_opus_decode(unsigned char* indata, int inlen, short* outpcmdata) {
int err;
// Decoding to 16-bit PCM with FEC off
// Maximum length assuming 48KHz sample rate
err = opus_decode(decoder, indata, inlen,
(opus_int16*) outpcmdata, 512, 0);
outpcmdata, 512, 0);
if (err>0)
err = err * 2;
return err;
}

4
jni/nv_opus_dec/nv_opus_dec.h
View File

@@ -1,6 +1,6 @@
int nv_opus_init(void);
void nv_opus_destroy(void);
int nv_opus_get_channel_count(void);
int nv_opus_get_max_out_bytes(void);
int nv_opus_get_max_out_shorts(void);
int nv_opus_get_sample_rate(void);
int nv_opus_decode(unsigned char* indata, int inlen, unsigned char* outpcmdata);
int nv_opus_decode(unsigned char* indata, int inlen, short* outpcmdata);

12
jni/nv_opus_dec/nv_opus_dec_jni.c
View File

@@ -3,6 +3,8 @@
#include <stdlib.h>
#include <jni.h>
#include <stdio.h>
// This function must be called before
// any other decoding functions
JNIEXPORT jint JNICALL
@@ -25,8 +27,8 @@ Java_com_limelight_nvstream_av_audio_OpusDecoder_getChannelCount(JNIEnv *env, jo
// This number assumes 2 channels at 48 KHz
JNIEXPORT jint JNICALL
Java_com_limelight_nvstream_av_audio_OpusDecoder_getMaxOutputBytes(JNIEnv *env, jobject this) {
return nv_opus_get_max_out_bytes();
Java_com_limelight_nvstream_av_audio_OpusDecoder_getMaxOutputShorts(JNIEnv *env, jobject this) {
return nv_opus_get_max_out_shorts();
}
// The Opus stream is 48 KHz
@@ -52,14 +54,14 @@ Java_com_limelight_nvstream_av_audio_OpusDecoder_decode(
jni_pcm_data = (*env)->GetByteArrayElements(env, outpcmdata, 0);
if (indata != NULL) {
jni_input_data = (*env)->GetByteArrayElements(env, indata, 0);
ret = nv_opus_decode(&jni_input_data[inoff], inlen, jni_pcm_data);
ret = nv_opus_decode(&jni_input_data[inoff], inlen, (jshort*) jni_pcm_data);
// The input data isn't changed so it can be safely aborted
(*env)->ReleaseByteArrayElements(env, indata, jni_input_data, JNI_ABORT);
}
else {
ret = nv_opus_decode(NULL, 0, jni_pcm_data);
ret = nv_opus_decode(NULL, 0, (jshort*) jni_pcm_data);
}
(*env)->ReleaseByteArrayElements(env, outpcmdata, jni_pcm_data, 0);