#include?
#include?
#include?“audio.h“


#include?“avpackets_queue.h“
#include?“av_clock.h“
#include?“video.h“
#include?“log.h“

#define?AVCODE_MAX_AUDIO_frame_SIZE	192000??/*?1?second?of?48khz?32bit?audio?*/

const?double?kPortAudioLatency??=?0.3;??//?0.3秒，也就是說PortAudio庫需要累積0.3秒的數據后才真正播放

#define?ERR_STREAM	stderr


typedef?struct?audio_param
{
????AVframe?wantframe;			//?指定PCM輸出格式

????PaStreamParameters?*outputParameters;
????PaStream?*stream;
????int?sampleRate;
????int?format;
????PacketQueue?audioQueue;?????//?音頻隊列
????int?packetEof;??????????????//?數據包已經讀取到最后
????int?quit;???????????????????//?是否退出線程
????double?audiobaseTime;???????//?音頻base?time
????SwrContext	*swrCtx;????????//?音頻PCM格式轉換
}T_AudioParam;

static?T_AudioParam?sAudioParam;


static?int?_AudioDecodeframe（?AVCodecContext?*pAudioCodecCtx?uint8_t?*audioBuf?int?bufSize??int?*packeEof）;


void?AudioDecodeThread（?void?*userdata?）
{
????FunEntry（）;

????AVCodecContext	*pAudioCodecCtx?=?（AVCodecContext?*）?userdata;
????int		len1		=?0;
????int		audio_size	=?0;
????uint8_t?audioBuf[AVCODE_MAX_AUDIO_frame_SIZE];

????AVClockDisable（）;???????//?禁止時鐘
????while?（?sAudioParam.quit?!=?1?）
????{
????????if（sAudioParam.packetEof?&&?sAudioParam.audioQueue.size?==?0）
????????{
????????????sAudioParam.quit?=?1;
????????}
????????audio_size?=?0;
????????if（VideoGetFirstframe（））????????????//?等圖像出來后再出聲音
????????{
????????????audio_size?=?_AudioDecodeframe（?pAudioCodecCtx?audioBuf?sizeof（audioBuf）?&sAudioParam.packetEof）;
????????}
????????if?（?audio_size?>?0?）
????????{
????????????AudioPlay（audioBuf?audio_size?0）;
????????}
????????else
????????{
????????????std::this_thread::sleep_for（std::chrono::milliseconds（20））;?????//?沒有數據時先休眠20毫秒
????????}
????}


????FunExit（）;
}


//?對于音頻來說，一個packet里面，可能含有多幀（frame）數據
/**
?*?@brief?_AudioDecodeframe
?*?@param?pAudioCodecCtx
?*?@param?audioBuf
?*?@param?bufSize
?*?@param?packeEof
?*?@return
?*/
int?_AudioDecodeframe（?AVCodecContext?*pAudioCodecCtx
???????????????????????uint8_t?*audioBuf?int?bufSize?int?*packeEof）
{
????AVPacket	packet;
????AVframe		*pframe?=?NULL;
????int		gotframe?=?0;
????int		decodeLen??=?0;
????long?	audioBufIndex?=?0;
????int		convertLength	=?0;
????int		convertAll	=?0;

????if?（?PacketQueueTake（?&sAudioParam.audioQueue?&packet?1?）?????{
????????std::this_thread::sleep_for（std::chrono::milliseconds（30））;?????//?沒有取到數據休眠
????????return（-1）;
????}

????pframe?=?av_frame_alloc（）;
????*packeEof?=?packet.size???0:?1;???????//?約定使用數據長度為0時來標記packet已經讀取完畢

????while?（?packet.size?>?0?）
????{
????????/*
?????????*?pAudioCodecCtx:解碼器信息
?????????*?pframe:輸出，存數據到frame
?????????*?gotframe:輸出。0代表有frame取了，不意味發生了錯誤。
?????????*?packet:輸入，取數據解碼。
?????????*/
????????decodeLen?=?avcodec_decode_audio4（?pAudioCodecCtx?pframe?&gotframe?&packet?）;
????????if（decodeLen?????????{
????????????LogError（

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????814??2018-02-27?18:23??01-simple-player\.gitignore

?????文件???????1470??2018-03-06?10:09??01-simple-player\01-simple-player.pro

?????文件??????24050??2018-03-06?18:40??01-simple-player\01-simple-player.pro.user

?????文件??????11046??2018-03-06?17:01??01-simple-player\audio.cpp

?????文件????????465??2018-03-06?16:31??01-simple-player\audio.h

?????文件???????1596??2018-03-06?17:01??01-simple-player\avpackets_queue.cpp

?????文件????????888??2018-03-06?16:31??01-simple-player\avpackets_queue.h

?????文件???????1426??2018-03-06?17:03??01-simple-player\av_clock.cpp

?????文件????????292??2018-03-06?10:09??01-simple-player\av_clock.h

?????文件???24510976??2018-02-26?09:14??01-simple-player\dll\avcodec-57.dll

?????文件????2011648??2018-02-26?09:14??01-simple-player\dll\avdevice-57.dll

?????文件????4290048??2018-02-26?09:14??01-simple-player\dll\avfilter-6.dll

?????文件????5145088??2018-02-26?09:14??01-simple-player\dll\avformat-57.dll

?????文件?????669184??2018-02-26?09:14??01-simple-player\dll\avutil-55.dll

?????文件?????120334??2017-10-09?11:53??01-simple-player\dll\libgcc_s_dw2-1.dll

?????文件????1540622??2015-12-29?06:25??01-simple-player\dll\libstdc++-6.dll

?????文件??????79360??2015-12-29?06:25??01-simple-player\dll\libwinpthread-1.dll

?????文件?????667648??2018-02-28?11:56??01-simple-player\dll\portaudio_x86.dll

?????文件?????116736??2018-02-26?09:14??01-simple-player\dll\postproc-54.dll

?????文件????1005056??2018-02-26?09:14??01-simple-player\dll\SDL2.dll

?????文件????6636853??2018-02-26?09:14??01-simple-player\dll\source.200kbps.768x320.flv

?????文件?????293888??2018-02-26?09:14??01-simple-player\dll\swresample-2.dll

?????文件?????509440??2018-02-26?09:14??01-simple-player\dll\swscale-4.dll

?????文件???24510976??2018-02-26?09:14??01-simple-player\ffmpeg\ffmpeg-3.3.3-win32-shared\bin\avcodec-57.dll

?????文件????2011648??2018-02-26?09:14??01-simple-player\ffmpeg\ffmpeg-3.3.3-win32-shared\bin\avdevice-57.dll

?????文件????4290048??2018-02-26?09:14??01-simple-player\ffmpeg\ffmpeg-3.3.3-win32-shared\bin\avfilter-6.dll

?????文件????5145088??2018-02-26?09:14??01-simple-player\ffmpeg\ffmpeg-3.3.3-win32-shared\bin\avformat-57.dll

?????文件?????669184??2018-02-26?09:14??01-simple-player\ffmpeg\ffmpeg-3.3.3-win32-shared\bin\avutil-55.dll

?????文件?????281600??2018-02-26?09:14??01-simple-player\ffmpeg\ffmpeg-3.3.3-win32-shared\bin\ffmpeg.exe

?????文件????1258496??2018-02-26?09:14??01-simple-player\ffmpeg\ffmpeg-3.3.3-win32-shared\bin\ffplay.exe

............此處省略343個文件信息