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解决ijk第一次初始化时异步线程调用主线程造成的线程卡顿问题 #4683

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解决ijk第一次初始化时异步线程调用主线程造成的线程卡顿问题 #4683

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ae5c11d
iOS -- ssl -- thread
poholo Apr 10, 2019
5c9802d
优化线程逻辑~
poholo May 17, 2019
280a5a0
优化线程逻辑~
poholo May 17, 2019
90ab70b
修正编译参数
poholo May 31, 2019
2a591c9
fix crash
poholo Aug 2, 2019
8764676
fix: 增加GLView是的autoresing到IJKFFMoviePlayerController
poholo Sep 2, 2019
972d2a1
fix: 关闭画布旋转、初始化的线程切换
poholo Sep 3, 2019
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94 changes: 43 additions & 51 deletions ios/IJKMediaPlayer/IJKMediaPlayer/ijkmedia/ijksdl/ios/IJKSDLAudioQueueController.m
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
#import "IJKSDLAudioQueueController.h"
#import "IJKSDLAudioKit.h"
#import "ijksdl_log.h"
#import "ijksdl_thread_ios.h"

#import <AVFoundation/AVFoundation.h>

Expand All @@ -41,8 +42,7 @@ @implementation IJKSDLAudioQueueController {
NSLock *_lock;
}

- (id)initWithAudioSpec:(const SDL_AudioSpec *)aSpec
{
- (id)initWithAudioSpec:(const SDL_AudioSpec *)aSpec {
self = [super init];
if (self) {
if (aSpec == NULL) {
Expand All @@ -52,12 +52,12 @@ - (id)initWithAudioSpec:(const SDL_AudioSpec *)aSpec
_spec = *aSpec;

if (aSpec->format != AUDIO_S16SYS) {
NSLog(@"aout_open_audio: unsupported format %d\n", (int)aSpec->format);
NSLog(@"aout_open_audio: unsupported format %d\n", (int) aSpec->format);
return nil;
}

if (aSpec->channels > 2) {
NSLog(@"aout_open_audio: unsupported channels %d\n", (int)aSpec->channels);
NSLog(@"aout_open_audio: unsupported channels %d\n", (int) aSpec->channels);
return nil;
}

Expand All @@ -75,14 +75,14 @@ - (id)initWithAudioSpec:(const SDL_AudioSpec *)aSpec
/* Set the desired format */
AudioQueueRef audioQueueRef;
OSStatus status = AudioQueueNewOutput(&streamDescription,
IJKSDLAudioQueueOuptutCallback,
(__bridge void *) self,
NULL,
kCFRunLoopCommonModes,
0,
&audioQueueRef);
IJKSDLAudioQueueOuptutCallback,
(__bridge void *) self,
NULL,
kCFRunLoopCommonModes,
0,
&audioQueueRef);
if (status != noErr) {
NSLog(@"AudioQueue: AudioQueueNewOutput failed (%d)\n", (int)status);
NSLog(@"AudioQueue: AudioQueueNewOutput failed (%d)\n", (int) status);
self = nil;
return nil;
}
Expand All @@ -96,15 +96,14 @@ - (id)initWithAudioSpec:(const SDL_AudioSpec *)aSpec

status = AudioQueueStart(audioQueueRef, NULL);
if (status != noErr) {
NSLog(@"AudioQueue: AudioQueueStart failed (%d)\n", (int)status);
NSLog(@"AudioQueue: AudioQueueStart failed (%d)\n", (int) status);
self = nil;
return nil;
}

_audioQueueRef = audioQueueRef;

for (int i = 0;i < kIJKAudioQueueNumberBuffers; i++)
{
for (int i = 0; i < kIJKAudioQueueNumberBuffers; i++) {
AudioQueueAllocateBuffer(audioQueueRef, _spec.size, &_audioQueueBufferRefArray[i]);
_audioQueueBufferRefArray[i]->mAudioDataByteSize = _spec.size;
memset(_audioQueueBufferRefArray[i]->mAudioData, 0, _spec.size);
Expand All @@ -126,59 +125,56 @@ - (id)initWithAudioSpec:(const SDL_AudioSpec *)aSpec
return self;
}

- (void)dealloc
{
- (void)dealloc {
[self close];
}

- (void)play
{
- (void)play {
if (!_audioQueueRef)
return;

self.spec.callback(self.spec.userdata, NULL, 0);

@synchronized(_lock) {
@synchronized (_lock) {
_isPaused = NO;
NSError *error = nil;
if (NO == [[AVAudioSession sharedInstance] setActive:YES error:&error]) {
if (![[AVAudioSession sharedInstance] setActive:YES error:&error]) {
NSLog(@"AudioQueue: AVAudioSession.setActive(YES) failed: %@\n", error ? [error localizedDescription] : @"nil");
}

OSStatus status = AudioQueueStart(_audioQueueRef, NULL);
if (status != noErr)
NSLog(@"AudioQueue: AudioQueueStart failed (%d)\n", (int)status);
NSLog(@"AudioQueue: AudioQueueStart failed (%d)\n", (int) status);
}
}

- (void)pause
{
- (void)pause {
if (!_audioQueueRef)
return;

@synchronized(_lock) {
@synchronized (_lock) {
if (_isStopped)
return;

_isPaused = YES;
OSStatus status = AudioQueuePause(_audioQueueRef);
if (status != noErr)
NSLog(@"AudioQueue: AudioQueuePause failed (%d)\n", (int)status);
IJKMainThredExecute(^{
OSStatus status = AudioQueuePause(_audioQueueRef);
if (status != noErr)
NSLog(@"AudioQueue: AudioQueuePause failed (%d)\n", (int) status);
});
}
}

- (void)flush
{
- (void)flush {
if (!_audioQueueRef)
return;

@synchronized(_lock) {
@synchronized (_lock) {
if (_isStopped)
return;

if (_isPaused == YES) {
for (int i = 0; i < kIJKAudioQueueNumberBuffers; i++)
{
if (_isPaused) {
for (int i = 0; i < kIJKAudioQueueNumberBuffers; i++) {
if (_audioQueueBufferRefArray[i] && _audioQueueBufferRefArray[i]->mAudioData) {
_audioQueueBufferRefArray[i]->mAudioDataByteSize = _spec.size;
memset(_audioQueueBufferRefArray[i]->mAudioData, 0, _spec.size);
Expand All @@ -190,31 +186,29 @@ - (void)flush
}
}

- (void)stop
{
- (void)stop {
if (!_audioQueueRef)
return;

@synchronized(_lock) {
@synchronized (_lock) {
if (_isStopped)
return;

_isStopped = YES;
}

// do not lock AudioQueueStop, or may be run into deadlock
AudioQueueStop(_audioQueueRef, true);
AudioQueueDispose(_audioQueueRef, true);
IJKMainThredExecute(^{
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这里会导致野指针崩溃，因AudioQuueueDispose 在主队列的执行时间不确定，可能IJKSDLAudioQueueController的实例已经被释放，但AudioQueueDispose还没执行，导致IJKSDLAudioQueueOuptutCallback回调时访问已释放的IJKSDLAudioQueueController的实例，引起崩溃；

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测试场景：
播放资源切换，因为ijkffmoviecontroller的设计，实际上每次播放一个新的资源都是创建一个新的ijkffmoviecontroller的实例

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试一试

    [self.player stop];
    [self.player shutdown];

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我也遇到这个问题了，请问解决了么

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我今天遇到了这个问题，有解决的吗？

// do not lock AudioQueueStop, or may be run into deadlock
AudioQueueStop(_audioQueueRef, true);
AudioQueueDispose(_audioQueueRef, true);
});
}

- (void)close
{
- (void)close {
[self stop];
_audioQueueRef = nil;
}

- (void)setPlaybackRate:(float)playbackRate
{
- (void)setPlaybackRate:(float)playbackRate {
if (fabsf(playbackRate - 1.0f) <= 0.000001) {
UInt32 propValue = 1;
AudioQueueSetProperty(_audioQueueRef, kAudioQueueProperty_TimePitchBypass, &propValue, sizeof(propValue));
Expand All @@ -226,8 +220,7 @@ - (void)setPlaybackRate:(float)playbackRate
}
}

- (void)setPlaybackVolume:(float)playbackVolume
{
- (void)setPlaybackVolume:(float)playbackVolume {
float aq_volume = playbackVolume;
if (fabsf(aq_volume - 1.0f) <= 0.000001) {
AudioQueueSetParameter(_audioQueueRef, kAudioQueueParam_Volume, 1.f);
Expand All @@ -236,14 +229,13 @@ - (void)setPlaybackVolume:(float)playbackVolume
}
}

- (double)get_latency_seconds
{
return ((double)(kIJKAudioQueueNumberBuffers)) * _spec.samples / _spec.freq;
- (double)get_latency_seconds {
return ((double) (kIJKAudioQueueNumberBuffers)) * _spec.samples / _spec.freq;
}

static void IJKSDLAudioQueueOuptutCallback(void * inUserData, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer) {
static void IJKSDLAudioQueueOuptutCallback(void *inUserData, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer) {
@autoreleasepool {
IJKSDLAudioQueueController* aqController = (__bridge IJKSDLAudioQueueController *) inUserData;
IJKSDLAudioQueueController *aqController = (__bridge IJKSDLAudioQueueController *) inUserData;

if (!aqController) {
// do nothing;
Expand Down
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