#include?“formatthread.h“
#include?
#include?
#include?

//?===============================?video?start?=============================
FormatThread::FormatThread（）
{
????pFormatCtx?=?NULL;
????videoStreamIdx?=?-1;
????fileLen=0;

????av_register_all（）;
}

FormatThread::~FormatThread（）
{
????qDebug（）<<“Format?thread?exit!“;

????if（NULL!=pFormatCtx）
????{
????????avformat_close_input（&pFormatCtx）;
????????free（pFormatCtx）;
????}
}

int?FormatThread::openUrl（QString?url）
{
????int?nRet=0;

????pFormatCtx?=?avformat_alloc_context（）;
????nRet?=?avformat_open_input（&pFormatCtx?url.toStdString（）.c_str（）?NULLNULL）;
????if?（nRet?????{
????????qDebug（）<<“Can?not?open:“<????????return?-1;
????}

????if?（avformat_find_stream_info（pFormatCtxNULL）?????{
????????qDebug（）<<“Unable?to?get?stream?info!“;
????????return?-2;
????}

????int?i;
????videoStreamIdx?=?-1;
????for?（i?=?0;?i?nb_streams;?i++）
????{
????????if?（pFormatCtx->streams[i]->codec->codec_type?==?AVMEDIA_TYPE_VIDEO）
????????{
????????????videoStreamIdx?=?i;
????????????break;
????????}
????}
????if?（videoStreamIdx?==?-1）
????{
???????qDebug（）<<“Unable?to?find?video?stream!“;
???????return?-3;
????}

????QString?strValue;

????strValue=QString::number（pFormatCtx->streams[videoStreamIdx]->codec->width）?+?“*“?+
????????????QString::number（pFormatCtx->streams[videoStreamIdx]->codec->height）;
????emit?sig（0strValue0）;?//?發送分辨率

????strValue=QString::number（pFormatCtx->streams[videoStreamIdx]->avg_frame_rate.num）;
????emit?sig（1strValue0）;?//?發送幀率

????QFileInfo?fileInfo;
????fileInfo.setFile（url）;
????if（!fileInfo.isFile（））?return?-4;
????fileLen=fileInfo.size（）/1024;
????strValue=QString::number（fileLen）+“?KB“;
????emit?sig（2strValue0）;?????????//?文件大小
}

void?FormatThread::setOutFileName（QString?fileName）
{
????outFileName=fileName;
}

?void??FormatThread::run（）
?{
????if（NULL==pFormatCtx）?return;
????qDebug（）<<“Thread?start.“;

????AVFormatContext?*o_fmt_ctx;
????AVStream?*o_video_stream;
????AVStream?*i_video_stream;
????int?startFlag=false;
????int?frameCount=0;
????uint32_t?sizeCount=0;

????i_video_stream=pFormatCtx->streams[videoStreamIdx];
????avformat_alloc_output_context2（&o_fmt_ctx?NULL?NULLoutFileName.toStdString（）.c_str（））;

????o_video_stream?=?avformat_new_stream（o_fmt_ctx?NULL）;
????avcodec_copy_context（o_video_stream->codec?i_video_stream->codec）;
????o_video_stream->codec->codec_tag?=?0;
????o_video_stream->codec->flags?=?i_video_stream->codec->flags;
????o_video_stream->codec->flags?|=?CODEC_FLAG_GLOBAL_HEADER;
????o_video_stream->codec->time_base.num?=?i_video_stream->avg_frame_rate.den;
????o_video_stream->codec->time_base.den?=?i_video_stream->avg_frame_rate.num;

????avio_open（&o_fmt_ctx->pb?outFileName.toStdString（）.c_str（）?AVIO_FLAG_WRITE）;
????avformat_write_header（o_fmt_ctx?NULL）;

?????while?（av_

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

?????文件??????45665??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\developer.html

?????文件???????5642??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\avio_dir_cmd.c

?????文件???????4060??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\avio_reading.c

?????文件??????19624??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\decoding_encoding.c

?????文件??????14634??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\demuxing_decoding.c

?????文件???????5747??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\extract_mvs.c

?????文件??????10058??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\filtering_audio.c

?????文件???????9180??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\filtering_video.c

?????文件??????11854??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\filter_audio.c

?????文件???????5223??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\http_multiclient.c

?????文件???????1758??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\Makefile

?????文件???????1941??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\metadata.c

?????文件??????21668??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\muxing.c

?????文件??????14366??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\qsvdec.c

?????文件????????888??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\README

?????文件???????5631??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\remuxing.c

?????文件???????8005??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\resampling_audio.c

?????文件???????5028??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\scaling_video.c

?????文件??????29409??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\transcode_aac.c

?????文件??????20612??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\examples\transcoding.c

?????文件??????58639??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\faq.html

?????文件??????12505??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\fate.html

?????文件????1422304??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\ffmpeg-all.html

?????文件??????14155??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\ffmpeg-bitstream-filters.html

?????文件?????190242??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\ffmpeg-codecs.html

?????文件??????94347??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\ffmpeg-devices.html

?????文件?????772460??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\ffmpeg-filters.html

?????文件?????141019??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\ffmpeg-formats.html

?????文件??????64946??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\ffmpeg-protocols.html

?????文件??????13188??2017-03-12?17:03??MediaTools\MediaTools\ffmpeg-3.2.4\doc\ffmpeg-resampler.html

............此處省略227個文件信息