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Tremor decoder now working on Android

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* fixed issue where FileDesc_read() would cause a stack overflow
 * fixed incorrect NativeVorbisFile field values
 * properly indicate that streaming is not supported yet
This commit is contained in:
shadowislord 2014-11-12 21:47:36 -05:00
parent 0c83407f99
commit ba91da8db4
2 changed files with 43 additions and 21 deletions
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22
jme3-android-native/src/native/jme_decode/com_jme3_audio_plugins_NativeVorbisFile.c
View File

@ -1,6 +1,8 @@
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#define LIMIT_TO_64kHz
#include "Tremor/ivorbisfile.h"
#include "com_jme3_audio_plugins_NativeVorbisFile.h"
@ -31,12 +33,8 @@ static size_t FileDesc_read(void *ptr, size_t size, size_t nmemb, void *datasour
FileDescWrapper* wrapper = (FileDescWrapper*)datasource;
int req_size = size * nmemb;
int to_read = req_size;
if (wrapper->end - wrapper->current > req_size)
{
to_read = wrapper->end - wrapper->current;
}
int remaining = wrapper->end - wrapper->current;
int to_read = remaining < req_size ? remaining : req_size;
if (to_read <= 0)
{
@ -208,9 +206,17 @@ JNIEXPORT void JNICALL Java_com_jme3_audio_plugins_NativeVorbisFile_open
jobject ovfBuf = (*env)->NewDirectByteBuffer(env, ovf, sizeof(OggVorbis_File));
vorbis_info* info = ov_info(ovf, -1);
jint total_bytes = ov_pcm_total(ovf, -1);
// total # of bytes = total samples * bytes per sample * channels
int total_samples = ov_pcm_total(ovf, -1);
jint total_bytes = total_samples * 2 * info->channels;
jboolean seekable = ov_seekable(ovf) != 0;
jfloat duration = (jfloat) ov_time_total(ovf, -1);
// duration = millis / 1000
long timeMillis = ov_time_total(ovf, -1);
double timeSeconds = ((double)timeMillis) / 1000.0;
jfloat duration = (jfloat) timeSeconds;
(*env)->SetObjectField(env, nvf, nvf_field_ovf, ovfBuf);
(*env)->SetBooleanField(env, nvf, nvf_field_seekable, seekable);

42
jme3-android/src/main/java/com/jme3/audio/plugins/NativeVorbisLoader.java
View File

@ -52,6 +52,30 @@ public class NativeVorbisLoader implements AssetLoader {
}
}
private static AudioBuffer loadBuffer(AssetInfo assetInfo) throws IOException {
AndroidAssetInfo aai = (AndroidAssetInfo) assetInfo;
AssetFileDescriptor afd = null;
NativeVorbisFile file = null;
try {
afd = aai.openFileDescriptor();
int fd = afd.getParcelFileDescriptor().getFd();
file = new NativeVorbisFile(fd, afd.getStartOffset(), afd.getLength());
ByteBuffer data = BufferUtils.createByteBuffer(file.totalBytes);
file.readFully(data);
AudioBuffer ab = new AudioBuffer();
ab.setupFormat(file.channels, 16, file.sampleRate);
ab.updateData(data);
return ab;
} finally {
if (file != null) {
file.close();
}
if (afd != null) {
afd.close();
}
}
}
@Override
public Object load(AssetInfo assetInfo) throws IOException {
AudioKey key = (AudioKey) assetInfo.getKey();
@ -61,18 +85,10 @@ public class NativeVorbisLoader implements AssetLoader {
"Android's assets directory");
}
AndroidAssetInfo aai = (AndroidAssetInfo) assetInfo;
AssetFileDescriptor afd = aai.openFileDescriptor();
int fd = afd.getParcelFileDescriptor().getFd();
NativeVorbisFile file = new NativeVorbisFile(fd, afd.getStartOffset(),
afd.getLength());
ByteBuffer data = BufferUtils.createByteBuffer(file.totalBytes);
file.readFully(data);
AudioBuffer ab = new AudioBuffer();
ab.setupFormat(file.channels, 16, file.sampleRate);
ab.updateData(data);
return ab;
if (key.isStream()) {
throw new UnsupportedOperationException("Not supported yet. Come again.");
} else {
return loadBuffer(assetInfo);
}
}
}