/*
* Copyright (C) 2006 The Android Open Source Project
* Copyright (C) 2013 Zhang Rui <bbcallen@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package tv.danmaku.ijk.media.player;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Locale;
import tv.danmaku.ijk.media.player.annotations.AccessedByNative;
import tv.danmaku.ijk.media.player.annotations.CalledByNative;
import tv.danmaku.ijk.media.player.option.AvFormatOption;
import tv.danmaku.ijk.media.player.pragma.DebugLog;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.SurfaceTexture;
import android.media.MediaCodecInfo;
import android.media.MediaCodecList;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.Surface;
import android.view.SurfaceHolder;
/**
* @author bbcallen
*
* Java wrapper of ffplay.
*/
public final class IjkMediaPlayer extends SimpleMediaPlayer {
private final static String TAG = IjkMediaPlayer.class.getName();
private static final int MEDIA_NOP = 0; // interface test message
private static final int MEDIA_PREPARED = 1;
private static final int MEDIA_PLAYBACK_COMPLETE = 2;
private static final int MEDIA_BUFFERING_UPDATE = 3;
private static final int MEDIA_SEEK_COMPLETE = 4;
private static final int MEDIA_SET_VIDEO_SIZE = 5;
private static final int MEDIA_TIMED_TEXT = 99;
private static final int MEDIA_ERROR = 100;
private static final int MEDIA_INFO = 200;
protected static final int MEDIA_SET_VIDEO_SAR = 10001;
@AccessedByNative
private long mNativeMediaPlayer;
@AccessedByNative
private int mNativeSurfaceTexture;
@AccessedByNative
private int mListenerContext;
private SurfaceHolder mSurfaceHolder;
private EventHandler mEventHandler;
private PowerManager.WakeLock mWakeLock = null;
private boolean mScreenOnWhilePlaying;
private boolean mStayAwake;
private int mVideoWidth;
private int mVideoHeight;
private int mVideoSarNum;
private int mVideoSarDen;
private String mDataSource;
private String mFFConcatContent;
/**
* Default library loader
* Load them by yourself, if your libraries are not installed at default place.
*/
private static IjkLibLoader sLocalLibLoader = new IjkLibLoader() {
@Override
public void loadLibrary(String libName) throws UnsatisfiedLinkError, SecurityException {
System.loadLibrary(libName);
}
};
private static volatile boolean mIsLibLoaded = false;
public static void loadLibrariesOnce(IjkLibLoader libLoader) {
synchronized (IjkMediaPlayer.class) {
if (!mIsLibLoaded) {
libLoader.loadLibrary("ijkffmpeg");
libLoader.loadLibrary("ijkutil");
libLoader.loadLibrary("ijksdl");
libLoader.loadLibrary("ijkplayer");
mIsLibLoaded = true;
}
}
}
private static volatile boolean mIsNativeInitialized = false;
private static void initNativeOnce() {
synchronized (IjkMediaPlayer.class) {
if (!mIsNativeInitialized) {
native_init();
mIsNativeInitialized = true;
}
}
}
/**
* Default constructor. Consider using one of the create() methods for
* synchronously instantiating a IjkMediaPlayer from a Uri or resource.
* <p>
* When done with the IjkMediaPlayer, you should call {@link #release()}, to
* free the resources. If not released, too many IjkMediaPlayer instances
* may result in an exception.
* </p>
*/
public IjkMediaPlayer() {
this(sLocalLibLoader);
}
/**
* do not loadLibaray
* @param libLoader
* custom library loader, can be null.
*/
public IjkMediaPlayer(IjkLibLoader libLoader) {
initPlayer(libLoader);
}
private void initPlayer(IjkLibLoader libLoader) {
loadLibrariesOnce(libLoader);
initNativeOnce();
Looper looper;
if ((looper = Looper.myLooper()) != null) {
mEventHandler = new EventHandler(this, looper);
} else if ((looper = Looper.getMainLooper()) != null) {
mEventHandler = new EventHandler(this, looper);
} else {
mEventHandler = null;
}
/*
* Native setup requires a weak reference to our object. It's easier to
* create it here than in C++.
*/
native_setup(new WeakReference<IjkMediaPlayer>(this));
}
/*
* Update the IjkMediaPlayer SurfaceTexture. Call after setting a new
* display surface.
*/
private native void _setVideoSurface(Surface surface);
/**
* Sets the {@link SurfaceHolder} to use for displaying the video portion of
* the media.
*
* Either a surface holder or surface must be set if a display or video sink
* is needed. Not calling this method or {@link #setSurface(Surface)} when
* playing back a video will result in only the audio track being played. A
* null surface holder or surface will result in only the audio track being
* played.
*
* @param sh
* the SurfaceHolder to use for video display
*/
@Override
public void setDisplay(SurfaceHolder sh) {
mSurfaceHolder = sh;
Surface surface;
if (sh != null) {
surface = sh.getSurface();
} else {
surface = null;
}
_setVideoSurface(surface);
updateSurfaceScreenOn();
}
/**
* Sets the {@link Surface} to be used as the sink for the video portion of
* the media. This is similar to {@link #setDisplay(SurfaceHolder)}, but
* does not support {@link #setScreenOnWhilePlaying(boolean)}. Setting a
* Surface will un-set any Surface or SurfaceHolder that was previously set.
* A null surface will result in only the audio track being played.
*
* If the Surface sends frames to a {@link SurfaceTexture}, the timestamps
* returned from {@link SurfaceTexture#getTimestamp()} will have an
* unspecified zero point. These timestamps cannot be directly compared
* between different media sources, different instances of the same media
* source, or multiple runs of the same program. The timestamp is normally
* monotonically increasing and is unaffected by time-of-day adjustments,
* but it is reset when the position is set.
*
* @param surface
* The {@link Surface} to be used for the video portion of the
* media.
*/
@Override
public void setSurface(Surface surface) {
if (mScreenOnWhilePlaying && surface != null) {
DebugLog.w(TAG,
"setScreenOnWhilePlaying(true) is ineffective for Surface");
}
mSurfaceHolder = null;
_setVideoSurface(surface);
updateSurfaceScreenOn();
}
/**
* Sets the data source (file-path or http/rtsp URL) to use.
*
* @param path
* the path of the file, or the http/rtsp URL of the stream you
* want to play
* @throws IllegalStateException
* if it is called in an invalid state
*
* <p>
* When <code>path</code> refers to a local file, the file may
* actually be opened by a process other than the calling
* application. This implies that the pathname should be an
* absolute path (as any other process runs with unspecified
* current working directory), and that the pathname should
* reference a world-readable file.
*/
@Override
public void setDataSource(String path) throws IOException,
IllegalArgumentException, SecurityException, IllegalStateException {
mDataSource = path;
_setDataSource(path, null, null);
}
private native void _setDataSource(String path, String[] keys,
String[] values) throws IOException, IllegalArgumentException,
SecurityException, IllegalStateException;
@Override
public String getDataSource() {
return mDataSource;
}
public void setDataSourceAsFFConcatContent(String ffConcatContent) {
mFFConcatContent = ffConcatContent;
}
@Override
public void prepareAsync() throws IllegalStateException {
if (TextUtils.isEmpty(mFFConcatContent)) {
_prepareAsync();
} else {
_prepareAsync();
}
}
public native void _prepareAsync() throws IllegalStateException;
@Override
public void start() throws IllegalStateException {
stayAwake(true);
_start();
}
private native void _start() throws IllegalStateException;
@Override
public void stop() throws IllegalStateException {
stayAwake(false);
_stop();
}
private native void _stop() throws IllegalStateException;
@Override
public void pause() throws IllegalStateException {
stayAwake(false);
_pause();
}
private native void _pause() throws IllegalStateException;
@SuppressLint("Wakelock")
@Override
public void setWakeMode(Context context, int mode) {
boolean washeld = false;
if (mWakeLock != null) {
if (mWakeLock.isHeld()) {
washeld = true;
mWakeLock.release();
}
mWakeLock = null;
}
PowerManager pm = (PowerManager) context
.getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(mode | PowerManager.ON_AFTER_RELEASE,
IjkMediaPlayer.class.getName());
mWakeLock.setReferenceCounted(false);
if (washeld) {
mWakeLock.acquire();
}
}
@Override
public void setScreenOnWhilePlaying(boolean screenOn) {
if (mScreenOnWhilePlaying != screenOn) {
if (screenOn && mSurfaceHolder == null) {
DebugLog.w(TAG,
"setScreenOnWhilePlaying(true) is ineffective without a SurfaceHolder");
}
mScreenOnWhilePlaying = screenOn;
updateSurfaceScreenOn();
}
}
@SuppressLint("Wakelock")
private void stayAwake(boolean awake) {
if (mWakeLock != null) {
if (awake && !mWakeLock.isHeld()) {
mWakeLock.acquire();
} else if (!awake && mWakeLock.isHeld()) {
mWakeLock.release();
}
}
mStayAwake = awake;
updateSurfaceScreenOn();
}
private void updateSurfaceScreenOn() {
if (mSurfaceHolder != null) {
mSurfaceHolder.setKeepScreenOn(mScreenOnWhilePlaying && mStayAwake);
}
}
@Override
public int getVideoWidth() {
return mVideoWidth;
}
@Override
public int getVideoHeight() {
return mVideoHeight;
}
@Override
public int getVideoSarNum() {
return mVideoSarNum;
}
@Override
public int getVideoSarDen() {
return mVideoSarDen;
}
@Override
public native boolean isPlaying();
@Override
public native void seekTo(long msec) throws IllegalStateException;
@Override
public native long getCurrentPosition();
@Override
public native long getDuration();
/**
* Releases resources associated with this IjkMediaPlayer object. It is
* considered good practice to call this method when you're done using the
* IjkMediaPlayer. In particular, whenever an Activity of an application is
* paused (its onPause() method is called), or stopped (its onStop() method
* is called), this method should be invoked to release the IjkMediaPlayer
* object, unless the application has a special need to keep the object
* around. In addition to unnecessary resources (such as memory and
* instances of codecs) being held, failure to call this method immediately
* if a IjkMediaPlayer object is no longer needed may also lead to
* continuous battery consumption for mobile devices, and playback failure
* for other applications if no multiple instances of the same codec are
* supported on a device. Even if multiple instances of the same codec are
* supported, some performance degradation may be expected when unnecessary
* multiple instances are used at the same time.
*/
@Override
public void release() {
stayAwake(false);
updateSurfaceScreenOn();
resetListeners();
_release();
}
private native void _release();
@Override
public void reset() {
stayAwake(false);
_reset();
// make sure none of the listeners get called anymore
mEventHandler.removeCallbacksAndMessages(null);
mVideoWidth = 0;
mVideoHeight = 0;
}
private native void _reset();
public native void setVolume(float leftVolume, float rightVolume);
@Override
public MediaInfo getMediaInfo() {
MediaInfo mediaInfo = new MediaInfo();
mediaInfo.mMediaPlayerName = "ijkplayer";
String videoCodecInfo = _getVideoCodecInfo();
if (!TextUtils.isEmpty(videoCodecInfo)) {
String nodes[] = videoCodecInfo.split(",");
if (nodes.length >= 2) {
mediaInfo.mVideoDecoder = nodes[0];
mediaInfo.mVideoDecoderImpl = nodes[1];
} else if (nodes.length >= 1) {
mediaInfo.mVideoDecoder = nodes[0];
mediaInfo.mVideoDecoderImpl = "";
}
}
String audioCodecInfo = _getAudioCodecInfo();
if (!TextUtils.isEmpty(audioCodecInfo)) {
String nodes[] = audioCodecInfo.split(",");
if (nodes.length >= 2) {
mediaInfo.mAudioDecoder = nodes[0];
mediaInfo.mAudioDecoderImpl = nodes[1];
} else if (nodes.length >= 1) {
mediaInfo.mAudioDecoder = nodes[0];
mediaInfo.mAudioDecoderImpl = "";
}
}
try {
mediaInfo.mMeta = IjkMediaMeta.parse(_getMediaMeta());
} catch (Throwable e) {
e.printStackTrace();
}
return mediaInfo;
}
private native String _getVideoCodecInfo();
private native String _getAudioCodecInfo();
public void setAvOption(AvFormatOption option) {
setAvFormatOption(option.getName(), option.getValue());
}
public void setAvFormatOption(String name, String value) {
_setAvFormatOption(name, value);
}
public void setAvCodecOption(String name, String value) {
_setAvCodecOption(name, value);
}
public void setSwScaleOption(String name, String value) {
_setSwScaleOption(name, value);
}
/**
* @param chromaFourCC
* AvFourCC.SDL_FCC_RV16
* AvFourCC.SDL_FCC_RV32
* AvFourCC.SDL_FCC_YV12
*/
public void setOverlayFormat(int chromaFourCC) {
_setOverlayFormat(chromaFourCC);
}
/**
* @param frameDrop
* =0 do not drop any frame
* +n drop as many frames as possible
* -1 display 1 frame per `frameDrop` continuous dropped frames,
*/
public void setFrameDrop(int frameDrop) {
_setFrameDrop(frameDrop);
}
public void setMediaCodecEnabled(boolean enabled) {
_setMediaCodecEnabled(enabled);
}
public void setOpenSLESEnabled(boolean enabled) {
_setOpenSLESEnabled(enabled);
}
public void setAutoPlayOnPrepared(boolean enabled) {
_setAutoPlayOnPrepared(enabled);
}
private native void _setAvFormatOption(String name, String value);
private native void _setAvCodecOption(String name, String value);
private native void _setSwScaleOption(String name, String value);
private native void _setOverlayFormat(int chromaFourCC);
private native void _setFrameDrop(int frameDrop);
private native void _setMediaCodecEnabled(boolean enabled);
private native void _setOpenSLESEnabled(boolean enabled);
private native void _setAutoPlayOnPrepared(boolean enabled);
public Bundle getMediaMeta() {
return _getMediaMeta();
}
private native Bundle _getMediaMeta();
public static String getColorFormatName(int mediaCodecColorFormat) {
return _getColorFormatName(mediaCodecColorFormat);
}
private static native final String _getColorFormatName(int mediaCodecColorFormat);
@Override
public void setAudioStreamType(int streamtype) {
// do nothing
}
private static native final void native_init();
private native final void native_setup(Object IjkMediaPlayer_this);
private native final void native_finalize();
private native final void native_message_loop(Object IjkMediaPlayer_this);
protected void finalize() {
native_finalize();
}
private static class EventHandler extends Handler {
private WeakReference<IjkMediaPlayer> mWeakPlayer;
public EventHandler(IjkMediaPlayer mp, Looper looper) {
super(looper);
mWeakPlayer = new WeakReference<IjkMediaPlayer>(mp);
}
@Override
public void handleMessage(Message msg) {
IjkMediaPlayer player = mWeakPlayer.get();
if (player == null || player.mNativeMediaPlayer == 0) {
DebugLog.w(TAG,
"IjkMediaPlayer went away with unhandled events");
return;
}
switch (msg.what) {
case MEDIA_PREPARED:
player.notifyOnPrepared();
return;
case MEDIA_PLAYBACK_COMPLETE:
player.notifyOnCompletion();
player.stayAwake(false);
return;
case MEDIA_BUFFERING_UPDATE:
long bufferPosition = msg.arg1;
if (bufferPosition < 0) {
bufferPosition = 0;
}
long percent = 0;
long duration = player.getDuration();
if (duration > 0) {
percent = bufferPosition * 100 / duration;
}
if (percent >= 100) {
percent = 100;
}
// DebugLog.efmt(TAG, "Buffer (%d%%) %d/%d", percent, bufferPosition, duration);
player.notifyOnBufferingUpdate((int)percent);
return;
case MEDIA_SEEK_COMPLETE:
player.notifyOnSeekComplete();
return;
case MEDIA_SET_VIDEO_SIZE:
player.mVideoWidth = msg.arg1;
player.mVideoHeight = msg.arg2;
player.notifyOnVideoSizeChanged(player.mVideoWidth, player.mVideoHeight,
player.mVideoSarNum, player.mVideoSarDen);
return;
case MEDIA_ERROR:
DebugLog.e(TAG, "Error (" + msg.arg1 + "," + msg.arg2 + ")");
if (!player.notifyOnError(msg.arg1, msg.arg2)) {
player.notifyOnCompletion();
}
player.stayAwake(false);
return;
case MEDIA_INFO:
if (msg.arg1 != MEDIA_INFO_VIDEO_TRACK_LAGGING) {
DebugLog.i(TAG, "Info (" + msg.arg1 + "," + msg.arg2 + ")");
}
player.notifyOnInfo(msg.arg1, msg.arg2);
// No real default action so far.
return;
case MEDIA_TIMED_TEXT:
// do nothing
break;
case MEDIA_NOP: // interface test message - ignore
break;
case MEDIA_SET_VIDEO_SAR:
player.mVideoSarNum = msg.arg1;
player.mVideoSarDen = msg.arg2;
player.notifyOnVideoSizeChanged(player.mVideoWidth, player.mVideoHeight,
player.mVideoSarNum, player.mVideoSarDen);
break;
default:
DebugLog.e(TAG, "Unknown message type " + msg.what);
return;
}
}
}
/*
* Called from native code when an interesting event happens. This method
* just uses the EventHandler system to post the event back to the main app
* thread. We use a weak reference to the original IjkMediaPlayer object so
* that the native code is safe from the object disappearing from underneath
* it. (This is the cookie passed to native_setup().)
*/
@CalledByNative
private static void postEventFromNative(Object weakThiz, int what,
int arg1, int arg2, Object obj) {
if (weakThiz == null)
return;
@SuppressWarnings("rawtypes")
IjkMediaPlayer mp = (IjkMediaPlayer) ((WeakReference) weakThiz).get();
if (mp == null) {
return;
}
if (what == MEDIA_INFO && arg1 == MEDIA_INFO_STARTED_AS_NEXT) {
// this acquires the wakelock if needed, and sets the client side
// state
mp.start();
}
if (mp.mEventHandler != null) {
Message m = mp.mEventHandler.obtainMessage(what, arg1, arg2, obj);
mp.mEventHandler.sendMessage(m);
}
}
private OnControlMessageListener mOnControlMessageListener;
public void setOnControlMessageListener(OnControlMessageListener listener) {
mOnControlMessageListener = listener;
}
public static interface OnControlMessageListener {
public int onControlResolveSegmentCount();
public String onControlResolveSegmentUrl(int segment);
public String onControlResolveSegmentOfflineMrl(int segment);
public int onControlResolveSegmentDuration(int segment);
}
@CalledByNative
private static int onControlResolveSegmentCount(Object weakThiz) {
DebugLog.ifmt(TAG, "onControlResolveSegmentCount");
if (weakThiz == null || !(weakThiz instanceof WeakReference<?>))
return -1;
@SuppressWarnings("unchecked")
WeakReference<IjkMediaPlayer> weakPlayer = (WeakReference<IjkMediaPlayer>) weakThiz;
IjkMediaPlayer player = weakPlayer.get();
if (player == null)
return -1;
OnControlMessageListener listener = player.mOnControlMessageListener;
if (listener == null)
return -1;
return listener.onControlResolveSegmentCount();
}
@CalledByNative
private static String onControlResolveSegmentUrl(Object weakThiz, int segment) {
DebugLog.ifmt(TAG, "onControlResolveSegmentUrl %d", segment);
if (weakThiz == null || !(weakThiz instanceof WeakReference<?>))
return null;
@SuppressWarnings("unchecked")
WeakReference<IjkMediaPlayer> weakPlayer = (WeakReference<IjkMediaPlayer>) weakThiz;
IjkMediaPlayer player = weakPlayer.get();
if (player == null)
return null;
OnControlMessageListener listener = player.mOnControlMessageListener;
if (listener == null)
return null;
return listener.onControlResolveSegmentUrl(segment);
}
@CalledByNative
private static String onControlResolveSegmentOfflineMrl(Object weakThiz, int segment) {
DebugLog.ifmt(TAG, "onControlResolveSegmentOfflineMrl %d", segment);
if (weakThiz == null || !(weakThiz instanceof WeakReference<?>))
return null;
@SuppressWarnings("unchecked")
WeakReference<IjkMediaPlayer> weakPlayer = (WeakReference<IjkMediaPlayer>) weakThiz;
IjkMediaPlayer player = weakPlayer.get();
if (player == null)
return null;
OnControlMessageListener listener = player.mOnControlMessageListener;
if (listener == null)
return null;
return listener.onControlResolveSegmentOfflineMrl(segment);
}
@CalledByNative
private static int onControlResolveSegmentDuration(Object weakThiz, int segment) {
DebugLog.ifmt(TAG, "onControlResolveSegmentDuration %d", segment);
if (weakThiz == null || !(weakThiz instanceof WeakReference<?>))
return -1;
@SuppressWarnings("unchecked")
WeakReference<IjkMediaPlayer> weakPlayer = (WeakReference<IjkMediaPlayer>) weakThiz;
IjkMediaPlayer player = weakPlayer.get();
if (player == null)
return -1;
OnControlMessageListener listener = player.mOnControlMessageListener;
if (listener == null)
return -1;
return listener.onControlResolveSegmentDuration(segment);
}
public static interface OnMediaCodecSelectListener {
public String onMediaCodecSelect(IMediaPlayer mp, String mimeType, int profile, int level);
}
private OnMediaCodecSelectListener mOnMediaCodecSelectListener;
public void setOnMediaCodecSelectListener(OnMediaCodecSelectListener listener) {
mOnMediaCodecSelectListener = listener;
}
public void resetListeners() {
super.resetListeners();
mOnMediaCodecSelectListener = null;
}
@CalledByNative
private static String onSelectCodec(Object weakThiz, String mimeType, int profile, int level) {
if (weakThiz == null || !(weakThiz instanceof WeakReference<?>))
return null;
@SuppressWarnings("unchecked")
WeakReference<IjkMediaPlayer> weakPlayer = (WeakReference<IjkMediaPlayer>) weakThiz;
IjkMediaPlayer player = weakPlayer.get();
if (player == null)
return null;
OnMediaCodecSelectListener listener = player.mOnMediaCodecSelectListener;
if (listener == null)
listener = DefaultMediaCodecSelector.sInstance;
return listener.onMediaCodecSelect(player, mimeType, profile, level);
}
public static class DefaultMediaCodecSelector implements OnMediaCodecSelectListener {
public static DefaultMediaCodecSelector sInstance = new DefaultMediaCodecSelector();
@SuppressWarnings("deprecation")
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public String onMediaCodecSelect(IMediaPlayer mp, String mimeType, int profile, int level) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN)
return null;
if (TextUtils.isEmpty(mimeType))
return null;
Log.i(TAG, String.format(Locale.US, "onSelectCodec: mime=%s, profile=%d, level=%d", mimeType, profile, level));
ArrayList<IjkMediaCodecInfo> candidateCodecList = new ArrayList<IjkMediaCodecInfo>();
int numCodecs = MediaCodecList.getCodecCount();
for (int i = 0; i < numCodecs; i++) {
MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);
Log.d(TAG, String.format(Locale.US, " found codec: %s", codecInfo.getName()));
if (codecInfo.isEncoder())
continue;
String[] types = codecInfo.getSupportedTypes();
if (types == null)
continue;
for(String type: types) {
if (TextUtils.isEmpty(type))
continue;
Log.d(TAG, String.format(Locale.US, " mime: %s", type));
if (!type.equalsIgnoreCase(mimeType))
continue;
IjkMediaCodecInfo candidate = IjkMediaCodecInfo.setupCandidate(codecInfo, mimeType);
if (candidate == null)
continue;
candidateCodecList.add(candidate);
Log.i(TAG, String.format(Locale.US, "candidate codec: %s rank=%d", codecInfo.getName(), candidate.mRank));
candidate.dumpProfileLevels(mimeType);
}
}
if (candidateCodecList.isEmpty()) {
return null;
}
IjkMediaCodecInfo bestCodec = candidateCodecList.get(0);
for (IjkMediaCodecInfo codec : candidateCodecList) {
if (codec.mRank > bestCodec.mRank) {
bestCodec = codec;
}
}
if (bestCodec.mRank < IjkMediaCodecInfo.RANK_LAST_CHANCE) {
Log.w(TAG, String.format(Locale.US, "unaccetable codec: %s", bestCodec.mCodecInfo.getName()));
return null;
}
Log.i(TAG, String.format(Locale.US, "selected codec: %s rank=%d", bestCodec.mCodecInfo.getName(), bestCodec.mRank));
return bestCodec.mCodecInfo.getName();
}
}
}