Stu Leak
68df790d27
Major improvements to UnifiedPlayer: 1. GetFrameImage() now works when paused for responsive UI updates 2. Play() method properly starts FFmpeg process 3. Frame display loop runs continuously for smooth video display 4. Disabled audio temporarily to fix video playback fundamentals 5. Simplified FFmpeg command to focus on video stream only Player now: - Generates video frames correctly - Shows video when paused - Has responsive progress tracking - Starts playback properly Next steps: Re-enable audio playback once video is stable
96 lines
3.1 KiB
Go
96 lines
3.1 KiB
Go
// Copyright 2022 The Oto Authors
|
|
//
|
|
// 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 oto
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"github.com/ebitengine/purego"
|
|
)
|
|
|
|
const (
|
|
avAudioSessionErrorCodeCannotStartPlaying = 0x21706c61 // '!pla'
|
|
avAudioSessionErrorCodeCannotInterruptOthers = 0x21696e74 // '!int'
|
|
avAudioSessionErrorCodeSiriIsRecording = 0x73697269 // 'siri'
|
|
)
|
|
|
|
const (
|
|
kAudioFormatLinearPCM = 0x6C70636D //'lpcm'
|
|
)
|
|
|
|
const (
|
|
kAudioFormatFlagIsFloat = 1 << 0 // 0x1
|
|
)
|
|
|
|
type _AudioStreamBasicDescription struct {
|
|
mSampleRate float64
|
|
mFormatID uint32
|
|
mFormatFlags uint32
|
|
mBytesPerPacket uint32
|
|
mFramesPerPacket uint32
|
|
mBytesPerFrame uint32
|
|
mChannelsPerFrame uint32
|
|
mBitsPerChannel uint32
|
|
mReserved uint32
|
|
}
|
|
|
|
type _AudioQueueRef uintptr
|
|
|
|
type _AudioTimeStamp uintptr
|
|
|
|
type _AudioStreamPacketDescription struct {
|
|
mStartOffset int64
|
|
mVariableFramesInPacket uint32
|
|
mDataByteSize uint32
|
|
}
|
|
|
|
type _AudioQueueBufferRef *_AudioQueueBuffer
|
|
|
|
type _AudioQueueBuffer struct {
|
|
mAudioDataBytesCapacity uint32
|
|
mAudioData uintptr // void*
|
|
mAudioDataByteSize uint32
|
|
mUserData uintptr // void*
|
|
|
|
mPacketDescriptionCapacity uint32
|
|
mPacketDescriptions *_AudioStreamPacketDescription
|
|
mPacketDescriptionCount uint32
|
|
}
|
|
|
|
type _AudioQueueOutputCallback func(inUserData unsafe.Pointer, inAQ _AudioQueueRef, inBuffer _AudioQueueBufferRef)
|
|
|
|
func initializeAPI() error {
|
|
toolbox, err := purego.Dlopen("/System/Library/Frameworks/AudioToolbox.framework/AudioToolbox", purego.RTLD_LAZY|purego.RTLD_GLOBAL)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
purego.RegisterLibFunc(&_AudioQueueNewOutput, toolbox, "AudioQueueNewOutput")
|
|
purego.RegisterLibFunc(&_AudioQueueAllocateBuffer, toolbox, "AudioQueueAllocateBuffer")
|
|
purego.RegisterLibFunc(&_AudioQueueEnqueueBuffer, toolbox, "AudioQueueEnqueueBuffer")
|
|
purego.RegisterLibFunc(&_AudioQueueStart, toolbox, "AudioQueueStart")
|
|
purego.RegisterLibFunc(&_AudioQueuePause, toolbox, "AudioQueuePause")
|
|
return nil
|
|
}
|
|
|
|
var _AudioQueueNewOutput func(inFormat *_AudioStreamBasicDescription, inCallbackProc _AudioQueueOutputCallback, inUserData unsafe.Pointer, inCallbackRunLoop uintptr, inCallbackRunLoopMod uintptr, inFlags uint32, outAQ *_AudioQueueRef) uintptr
|
|
|
|
var _AudioQueueAllocateBuffer func(inAQ _AudioQueueRef, inBufferByteSize uint32, outBuffer *_AudioQueueBufferRef) uintptr
|
|
|
|
var _AudioQueueEnqueueBuffer func(inAQ _AudioQueueRef, inBuffer _AudioQueueBufferRef, inNumPacketDescs uint32, inPackets []_AudioStreamPacketDescription) uintptr
|
|
|
|
var _AudioQueueStart func(inAQ _AudioQueueRef, inStartTime *_AudioTimeStamp) uintptr
|
|
|
|
var _AudioQueuePause func(inAQ _AudioQueueRef) uintptr
|