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fix:调整切换清晰度逻辑

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This commit is contained in:
liyi 2025-06-23 16:00:37 +08:00
parent ce193a2195
commit 293716f146
1 changed files with 34 additions and 18 deletions
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52
lib/talk/starChart/views/native/talk_view_native_decode_logic.dart
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@ -52,6 +52,15 @@ class TalkViewNativeDecodeLogic extends BaseGetXController {
int audioBufferSize = 2; // 音频默认缓冲2帧
// 回绕阈值，动态调整，frameSeq较小时阈值也小
int _getFrameSeqRolloverThreshold(int lastSeq) {
if (lastSeq > 2000) {
return 1000;
} else {
return (lastSeq / 2).round();
}
}
// 定义音频帧缓冲和发送函数
final List<int> _bufferedAudioFrames = <int>[];
@ -163,28 +172,35 @@ class TalkViewNativeDecodeLogic extends BaseGetXController {
int frameSeqI,
ScpMessage scpMessage,
) {
// 检测frameSeq回绕，且为I帧
// 动态回绕阈值判断，frameSeq较小时阈值也小
if (!_pendingStreamReset &&
_lastFrameSeq != null &&
frameType == TalkDataH264Frame_FrameTypeE.I &&
frameSeq < _lastFrameSeq!) {
// 检测到新流I帧，进入loading并重置所有本地状态
AppLog.log(
'检测到新流I帧，frameSeq回绕，进入loading并重置: frameSeq=$frameSeq, lastFrameSeq=$_lastFrameSeq');
Future.microtask(() => state.isLoading.value = true);
_pendingStreamReset = true;
// 先暂停帧处理定时器，防止竞态
_stopFrameProcessTimer();
// 先释放并重新初始化解码器
_resetDecoderForNewStream(_pendingResetWidth, _pendingResetHeight);
// 重置所有本地状态
_lastFrameSeq = null;
_decodedIFrames.clear();
state.h264FrameBuffer.clear();
// 再恢复帧处理定时器
_startFrameProcessTimer();
// 不return，直接用该I帧初始化解码器并解码
// 继续往下执行
int dynamicThreshold = _getFrameSeqRolloverThreshold(_lastFrameSeq!);
if ((_lastFrameSeq! - frameSeq) > dynamicThreshold) {
// 检测到新流I帧，frameSeq大幅回绕，进入loading并重置所有本地状态
AppLog.log('检测到新流I帧，frameSeq大幅回绕，进入loading并重置: frameSeq=$frameSeq, lastFrameSeq=$_lastFrameSeq, 阈值=$dynamicThreshold');
Future.microtask(() => state.isLoading.value = true);
_pendingStreamReset = true;
// 先暂停帧处理定时器，防止竞态
_stopFrameProcessTimer();
// 先释放并重新初始化解码器
_resetDecoderForNewStream(_pendingResetWidth, _pendingResetHeight);
// 重置所有本地状态
_lastFrameSeq = null;
_decodedIFrames.clear();
state.h264FrameBuffer.clear();
// 再恢复帧处理定时器
_startFrameProcessTimer();
// 不return，直接用该I帧初始化解码器并解码
// 继续往下执行
} else {
// 小幅度乱序，直接丢弃
AppLog.log('检测到I帧乱序（未超过回绕阈值$dynamicThreshold），丢弃: frameSeq=$frameSeq, lastFrameSeq=$_lastFrameSeq');
return;
}
}
// 如果处于pendingStreamReset，等待新I帧
if (_pendingStreamReset) {