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資源簡介

基于FFMPEG_SDL2_音視頻播放_參考音頻時鐘,在vs2010上測試ok,是博文《基于FFMPEG+SDL2播放video---音視頻同步（參考音頻時鐘）》中的代碼，博文鏈接：https://blog.csdn.net/u011003120/article/details/82626615

資源截圖

代碼片段和文件信息 

#if?0
#else
#include?
#include?

#define?__STDC_CONSTANT_MACROS
extern?“C“
{
	#include?“libavcodec/avcodec.h“
	#include?“libavformat/avformat.h“
	#include?“libswscale/swscale.h“
	#include?“libswresample/swresample.h“
	#include?“libavutil/time.h“	
	#include?“sdl/SDL.h“
	#include?“sdl/SDL_thread.h“
};

#define?FILENAME?“屌絲男士.mov“


#define?VIDEO_PICTURE_QUEUE_SIZE???????1
#define?SDL_AUDIO_BUFFER_SIZE?????????????1024
#define?MAX_AUDIO_frame_SIZE??????????????192000
#define?MAX_AUDIOQ_SIZE?????????????????????????（5?*?16?*?1024）
#define?MAX_VIDEOQ_SIZE??????????????????????????（5?*?256?*?1024）

#define?FF_REFRESH_EVENT?????????????????????????（SDL_USEREVENT?+?1）
#define?FF_QUIT_EVENT????????????????????????????????（SDL_USEREVENT?+?2）
#define?FF_ALLOC_EVENT?????????????????????????????（SDL_USEREVENT+3）

#define?AV_SYNC_THRESHOLD??????????????????????0.01
#define?AV_NOSYNC_THRESHOLD?????????????????10.0

typedef?struct?PacketQueue?
{
????AVPacketList?*first_pkt?*last_pkt;
????int?nb_packets;
????int?size;
????SDL_mutex?*mutex;
????SDL_cond?*cond;
}?PacketQueue;

typedef?struct?_VideoPicture_
{
	AVframe*?pframe;
	double?pts;
	int?frameWidth;
	int?frameHeight;
	int?allocated;
}VideoPicture;

typedef?struct?_VideoState_
{
	AVFormatContext?*pFormatCtx;

	/*?video?*/
	int?videoStreamIndex;
	AVStream*?pVideoStream;
	PacketQueue?videoQueue;
	VideoPicture?pictQueue[VIDEO_PICTURE_QUEUE_SIZE];
	int?pictSize;
	int?pictRindex;??????????????????????????//取出索引
	int?pictWindex;?????????????????????????//寫入索引
	double?videoClock;
	double?frameLastDelay;??????????//兩幀PTS之間的差值
	double?frameLastPTS;?????????????//上一幀的PTS
	double?frameTimer;????????????????//什么作用?
	
	/*?audio?*/
	int?audioStreamIndex;
	AVStream*?pAudioStream;
	PacketQueue?audioQueue;
	uint8_t?audioBuf[（MAX_AUDIO_frame_SIZE?*?3）?/?2];
	unsigned?int?audioBufSize;
	unsigned?int?audioBufIndex;
	AVframe?audioframe;
	AVPacket?audioPkt;
	uint8_t?*audioPktData;
	int?audioPktSize;
	int?outBufferSize;
	struct?SwrContext?*au_convert_ctx;
	double?audioClock;
	
	/*?sdl?*/
	SDL_mutex?*pictQueueMutex;
	SDL_cond?*pictQueueCond;
	SDL_Thread?*videoThrd;
	SDL_Thread?*parseThrd;

	char?fileName[128];
	int?quit;
	int?flag;
	
	struct?SwsContext?*sws_ctx;
}VideoState;

VideoState?*global_video_state;

void?packet_queue_init（PacketQueue?*q）?
{
????memset（q?0?sizeof（PacketQueue））;
????q->mutex?=?SDL_CreateMutex（）;
????q->cond?=?SDL_CreateCond（）;
}

int?packet_queue_put（PacketQueue?*q?AVPacket?*pkt）?{
????AVPacketList?*pkt1;

????if（av_dup_packet（pkt）?????????return?-1;
????}

????pkt1?=?（AVPacketList?*）av_malloc（sizeof（AVPacketList））;
????if?（!pkt1）
????????return?-1;

????pkt1->pkt?=?*pkt;
????pkt1->next?=?NULL;

????SDL_LockMutex（q->mutex）;

????if?（!q->last_pkt）????//隊列為空
????????q->first_pkt?=?pkt1;
????else
????????q->last_pkt->next?=?pkt1;??//將當前鏈表的最后一個結點的next指向pkt1

??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-09-10?15:20??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\
?????文件????18936320??2018-08-27?18:38??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\avcodec-55.dll
?????文件?????1340928??2018-08-27?18:30??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\avdevice-55.dll
?????文件?????2034688??2018-08-27?18:30??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\avfilter-4.dll
?????文件?????5342720??2018-08-27?18:33??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\avformat-55.dll
?????文件??????418304??2018-08-27?18:30??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\avutil-52.dll
?????目錄???????????0??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\
?????文件?????????866??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\cl.command.1.tlog
?????文件???????17752??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\CL.read.1.tlog
?????文件?????????584??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\CL.write.1.tlog
?????文件????????5248??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test.Build.CppClean.log
?????文件???????43008??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test.exe
?????文件?????????658??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test.exe.embed.manifest
?????文件?????????724??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test.exe.embed.manifest.res
?????文件?????????616??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test.exe.intermediate.manifest
?????文件??????461344??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test.ilk
?????文件??????????94??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test.lastbuildstate
?????文件??????560128??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test.pdb
?????文件?????????266??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL2_Play_Video_Audio_Sync_Test_manifest.rc
?????文件???????58350??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\FFMPEG_SDL_Play_Video_Audio.obj
?????文件???????????2??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link-cvtres.read.1.tlog
?????文件???????????2??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link-cvtres.write.1.tlog
?????文件???????????2??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link.9948-cvtres.read.1.tlog
?????文件???????????2??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link.9948-cvtres.write.1.tlog
?????文件???????????2??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link.9948.read.1.tlog
?????文件???????????2??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link.9948.write.1.tlog
?????文件????????2802??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link.command.1.tlog
?????文件????????5290??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link.read.1.tlog
?????文件????????1466??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\link.write.1.tlog
?????文件?????????622??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\mt.command.1.tlog
?????文件?????????350??2018-09-10?15:19??FFMPEG_SDL2_Play_Video_Audio_Sync_Test\Debug\mt.read.1.tlog
............此處省略196個文件信息

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