FFmpeg to H264 encoding format, moov (meta data) moved to the head, bit rate to do a certain compression, resolution also lowered

Ffmpeg-i test.mp4-threads 4-vcodec mpeg4-b:v 1000k test_a1.mp4ffmpeg-i test.mp4-threads 8-vcodec mpeg4-b:v 800k t Est_a2.mp4ffmpeg-i test.mp4-threads 8-vcodec mpeg4-b 200k test_a3.mp4--Open 8 threads, compression rate-CRF the smaller the resolution the higher ffmpeg-i Test.mp4-thre Ads 8-CRF 22-y-vcodec mpeg4-strict experimental test_b1.mp4ffmpeg-i test.mp4-threads 8-CRF 26-y-vcodec mpeg4-s Trict experimental test_b2.mp4ffmpeg-i test.mp4-threads 8-CRF 28-y-vcodec mpeg4-strict experimental TEST_B3.MP4FFMP Eg-i test.mp4-threads 8-CRF 30-y-vcodec mpeg4-strict experimental test_b4.mp4--turn h264. -S 640*360--used: ffmpeg-i test.mp4-c:v libx264-b 600k-r 25-s 640*360-ab 48k-strict-2 test_ok.mp4 ffmpeg-i test. Mp4-threads 8-c:v libx264-movflags faststart-b 200k-r 25-ab 48k-strict-2 test_c1.mp4ffmpeg-i test.mp4-c:v libx2 64-movflags faststart-b 600k-r 25-ab 48k-strict-2 test_c2.mp4ffmpeg-i test.mp4-threads 2-c:v libx264-movflags F Aststart-b 600k-r 25-ab 48k-strict-2 test_c3.mp4--Found threads added no use, but feel a bit slow ffmpeg-i test.mp4-c:v libx264-movflags faststart-b 600k-r 25-s 640*360-ab 48k-strict-2 Test_c4.mp4ffmpeg-i C:\Users\guestAdmin\Desktop\K empty Folder \a00000592c0b5b\20180610\img_20180610104643.mp4-c:v libx264  -B 600k-r 25-s 1280*720-ab 48k-strict-2 test_c5.mp4ffmpeg-i dreamitpossible.mp4-c:v libx264-movflags faststart-b 300k-r 25-s 640*360-ab 48k-strict-2 test_c5.mp4ffmpeg-i dreamitpossible.mp4-threads 8-c:v libx264-movflags FAs Tstart-b 300k-r 25-s 320*240-ab 48k-strict-2 test_c6.mp4--support side download side: Qt-faststart test_c4.mp4 test_D1.mp4qt-faststart D Reamitpossible.mp4 Test_d2.mp4---movflags faststart--http://saas.ihaihong.cn/YinShiPin/upload/FTP/ 862107034362822/20180615/filesimg_20180615193440.mp4ffmpeg-i 862107034362822\20180615\filesimg_20180615193440- Old.mp4-c:v libx264 862107034362822\20180615\filesimg_20180615193440-264.mp4qt-faststart 862107034362822\20180615 \filesimg_20180615193440-264.mp4 862107034362822\20180615\filesimg_20180615193440.mp4ffmpeg-i 862107034362822\20180615\filesimg_20180615193440-old.mp4-c:v libx264-movflags FastStart 862107034362822\20180615\filesimg_20180615193440.mp4--reprint Please specify, Haihong software, Ihaihong.cnffmpeg-i 862107034362822\20180615\ Filesimg_20180615183646-old.mp4-c:v libx264-movflags FastStart 862107034362822\20180615\filesimg_20180615183646. mp4

　　

MP4 look is mp4 extension, but there are many encoding format, such as 3GP, MP4, MP42, AVC, XviD and so on, MP4 to HTML5 on the Web page <video src= "Xxx.mp4"/> Play, need these two points:

1:moov metadata should be put in front, through-movflags faststart implementation.

2: The format needs to be h264.

So casually with a <video src= "Xxx.mp4" autoplay= "AutoPlay"/> will be able to play.

FFmpeg to H264 encoding format, moov (meta data) moved to the head, bit rate to do a certain compression, resolution also lowered