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    發(fā)布日期: 2024-02-06
  • 語言: 其他
  • 標簽: qt??ffmpeg??mp4??導(dǎo)出??

資源簡介

使用qt結(jié)合FFmpeg開發(fā)的視頻導(dǎo)出示例代碼,以及window和macos下的ffmpeg庫。本示例支持導(dǎo)出視頻為mp4,avi,mov,支持導(dǎo)入視頻為mp4,avi,mov

資源截圖

代碼片段和文件信息

/*
?*?Copyright?(c)?2014?Lukasz?Marek
?*
?*?Permission?is?hereby?granted?free?of?charge?to?any?person?obtaining?a?copy
?*?of?this?software?and?associated?documentation?files?(the?“Software“)?to?deal
?*?in?the?Software?without?restriction?including?without?limitation?the?rights
?*?to?use?copy?modify?merge?publish?distribute?sublicense?and/or?sell
?*?copies?of?the?Software?and?to?permit?persons?to?whom?the?Software?is
?*?furnished?to?do?so?subject?to?the?following?conditions:
?*
?*?The?above?copyright?notice?and?this?permission?notice?shall?be?included?in
?*?all?copies?or?substantial?portions?of?the?Software.
?*
?*?THE?SOFTWARE?IS?PROVIDED?“AS?IS“?WITHOUT?WARRANTY?OF?ANY?KIND?EXPRESS?OR
?*?IMPLIED?INCLUDING?BUT?NOT?LIMITED?TO?THE?WARRANTIES?OF?MERCHANTABILITY
?*?FITNESS?FOR?A?PARTICULAR?PURPOSE?AND?NONINFRINGEMENT.?IN?NO?EVENT?SHALL
?*?THE?AUTHORS?OR?COPYRIGHT?HOLDERS?BE?LIABLE?FOR?ANY?CLAIM?DAMAGES?OR?OTHER
?*?LIABILITY?WHETHER?IN?AN?ACTION?OF?CONTRACT?TORT?OR?OTHERWISE?ARISING?FROM
?*?OUT?OF?OR?IN?CONNECTION?WITH?THE?SOFTWARE?OR?THE?USE?OR?OTHER?DEALINGS?IN
?*?THE?SOFTWARE.
?*/

#include?
#include?
#include?

static?const?char?*type_string(int?type)
{
????switch?(type)?{
????case?AVIO_ENTRY_DIRECTORY:
????????return?“
“;
????case?AVIO_ENTRY_FILE:
????????return?““;
????case?AVIO_ENTRY_BLOCK_DEVICE:
????????return?““;
????case?AVIO_ENTRY_CHARACTER_DEVICE:
????????return?““;
????case?AVIO_ENTRY_NAMED_PIPE:
????????return?““;
????case?AVIO_ENTRY_SYMBOLIC_link:
????????return?“nk>“;
????case?AVIO_ENTRY_SOCKET:
????????return?““;
????case?AVIO_ENTRY_SERVER:
????????return?““;
????case?AVIO_ENTRY_SHARE:
????????return?““;
????case?AVIO_ENTRY_WORKGROUP:
????????return?““;
????case?AVIO_ENTRY_UNKNOWN:
????default:
????????break;
????}
????return?““;
}

static?int?list_op(const?char?*input_dir)
{
????AVIODirEntry?*entry?=?NULL;
????AVIODirContext?*ctx?=?NULL;
????int?cnt?ret;
????char?filemode[4]?uid_and_gid[20];

????if?((ret?=?avio_open_dir(&ctx?input_dir?NULL))?????????av_log(NULL?AV_LOG_ERROR?“Cannot?open?directory:?%s.\n“?av_err2str(ret));
????????goto?fail;
????}

????cnt?=?0;
????for?(;;)?{
????????if?((ret?=?avio_read_dir(ctx?&entry))?????????????av_log(NULL?AV_LOG_ERROR?“Cannot?list?directory:?%s.\n“?av_err2str(ret));
????????????goto?fail;
????????}
????????if?(!entry)
????????????break;
????????if?(entry->filemode?==?-1)?{
????????????snprintf(filemode?4?“???“);
????????}?else?{
????????????snprintf(filemode?4?“%3“PRIo64?entry->filemode);
????????}
????????snprintf(uid_and_gid?20?“%“PRId64“(%“PRId64“)“?entry->user_id?entry->group_id);
????????if?(cnt?==?0)
????????????av_log(NULL?AV_LOG_INFO?“%-9s?%12s?%30s?%10s?%s?%16s?%16s?%16s\n“
???????????????????“TYPE“?“SIZE“?“NAME“?“UID(GID)“?“UGO“?“MODIFIED“
???????????????????“ACCE

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-08-24?15:37??ffmpeg-win32-shared\
?????目錄???????????0??2019-08-24?15:37??ffmpeg-win32-shared\bin\
?????文件??????293888??2019-08-19?04:44??ffmpeg-win32-shared\bin\ffmpeg.exe
?????文件????34018816??2019-08-19?04:44??ffmpeg-win32-shared\bin\avcodec-58.dll
?????文件??????124928??2019-08-19?04:44??ffmpeg-win32-shared\bin\postproc-55.dll
?????文件??????518656??2019-08-19?04:44??ffmpeg-win32-shared\bin\swscale-5.dll
?????文件?????9886208??2019-08-19?04:44??ffmpeg-win32-shared\bin\avformat-58.dll
?????文件??????166400??2019-08-19?04:44??ffmpeg-win32-shared\bin\ffprobe.exe
?????文件??????829952??2019-08-19?04:44??ffmpeg-win32-shared\bin\avutil-56.dll
?????文件?????1466880??2019-08-19?04:44??ffmpeg-win32-shared\bin\avdevice-58.dll
?????文件??????316928??2019-08-19?04:44??ffmpeg-win32-shared\bin\swresample-3.dll
?????文件??????147968??2019-08-19?04:44??ffmpeg-win32-shared\bin\ffplay.exe
?????文件?????7300096??2019-08-19?04:44??ffmpeg-win32-shared\bin\avfilter-7.dll
?????目錄???????????0??2019-08-24?15:37??ffmpeg-win32-shared\include\
?????目錄???????????0??2019-08-24?15:37??ffmpeg-win32-shared\include\libpostproc\
?????文件????????1642??2019-08-19?04:44??ffmpeg-win32-shared\include\libpostproc\version.h
?????文件????????2936??2019-08-19?04:44??ffmpeg-win32-shared\include\libpostproc\postprocess.h
?????目錄???????????0??2019-08-24?15:37??ffmpeg-win32-shared\include\libavfilter\
?????文件????????2335??2019-08-19?04:44??ffmpeg-win32-shared\include\libavfilter\version.h
?????文件????????6609??2019-08-19?04:44??ffmpeg-win32-shared\include\libavfilter\buffersrc.h
?????文件????????6314??2019-08-19?04:44??ffmpeg-win32-shared\include\libavfilter\buffersink.h
?????文件???????42263??2019-08-19?04:44??ffmpeg-win32-shared\include\libavfilter\avfilter.h
?????目錄???????????0??2019-08-24?15:37??ffmpeg-win32-shared\include\libavutil\
?????文件???????23027??2019-08-19?04:44??ffmpeg-win32-shared\include\libavutil\hwcontext.h
?????文件????????1800??2019-08-19?04:44??ffmpeg-win32-shared\include\libavutil\time.h
?????文件????????1482??2019-08-19?04:44??ffmpeg-win32-shared\include\libavutil\hwcontext_cuda.h
?????文件????????1726??2019-08-19?04:44??ffmpeg-win32-shared\include\libavutil\intfloat.h
?????文件????????5468??2019-08-19?04:44??ffmpeg-win32-shared\include\libavutil\error.h
?????文件????????5899??2019-08-19?04:44??ffmpeg-win32-shared\include\libavutil\fifo.h
?????文件????????2394??2019-08-19?04:44??ffmpeg-win32-shared\include\libavutil\blowfish.h
?????文件????????1203??2019-08-19?04:44??ffmpeg-win32-shared\include\libavutil\hwcontext_mediacodec.h
............此處省略660個文件信息

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