久久久久精品国产,丰满少妇粗大猛烈进高清播放,久久久97,在线18禁

<wbr id="x3zex"><nav id="x3zex"><em id="x3zex"></em></nav></wbr>

        <s id="x3zex"></s>
        1. <ruby id="x3zex"><nav id="x3zex"><acronym id="x3zex"></acronym></nav></ruby>
          <font id="x3zex"><noscript id="x3zex"></noscript></font>
          0712-2888027 189-8648-0214
          微信公眾號(hào)

          孝感風(fēng)信網(wǎng)絡(luò)科技有限公司微信公眾號(hào)

          當(dāng)前位置:主頁(yè) > 技術(shù)支持 > PHP > 視頻流使用FFmpeg將mp4視頻轉(zhuǎn)換為m3u8/ts文件

          視頻流使用FFmpeg將mp4視頻轉(zhuǎn)換為m3u8/ts文件

          時(shí)間:2020-11-02來(lái)源:風(fēng)信官網(wǎng) 點(diǎn)擊: 8605次
          風(fēng)信建站新的開發(fā)項(xiàng)目中引用視頻流技術(shù),為了有效解決大視頻在數(shù)據(jù)請(qǐng)求過程中加載過慢的問題,經(jīng)過多次測(cè)試,決定使用m3u8格式做為視頻流的格式,那么mp4和m3u8格式的視頻各有什么缺點(diǎn)和優(yōu)點(diǎn)呢?
           
          mp4視頻格式有以下優(yōu)點(diǎn):
           
          1:跨平臺(tái)支持,即支持pc端和移動(dòng)端(ios和安卓)。
          2:該格式性能優(yōu)越。
           
          mp4視頻的缺點(diǎn):
           
          1:視頻時(shí)間長(zhǎng)度過長(zhǎng)時(shí),在移動(dòng)端會(huì)消耗大量的流量,但隨著互聯(lián)網(wǎng)流量資費(fèi)的發(fā)展(將來(lái)流量是包月/年的,每月交一定費(fèi)用,流量無(wú)限使用。)該缺點(diǎn)將不再存在。
          2:視頻文件相對(duì)大一些。對(duì)于服務(wù)器的空間占用方面會(huì)有一定壓力。
           
          視頻本身的要求
          1:視頻轉(zhuǎn)碼格式需要是h.264
          2:音頻轉(zhuǎn)碼格式需要是AAC
          3:如果考慮到需要支持在PC端低版本IE(IE9及以下)的環(huán)境中(在該環(huán)境中只能使用flashplayer播放)支持視頻請(qǐng)求未下載到用戶本地緩存區(qū)的內(nèi)容播放。則需要視頻本身存在關(guān)鍵幀和關(guān)鍵時(shí)間點(diǎn)(服務(wù)器方面也有要求)。
           
          m3u8的優(yōu)點(diǎn):
           
          1:因?yàn)橐曨l被切成多個(gè).ts文件,所以不需要考慮元數(shù)據(jù)的問題,并且可以分段加載。
          2:在PC端使用flashplayer播放時(shí)可以實(shí)現(xiàn)視頻的絕對(duì)加密。也就是視頻即使是被下載到用戶本地也無(wú)法使用。
           
          m3u8的缺點(diǎn)
           
          正常情況下不支持PC端的播放。ckplayer做了兼容是支持在pc端播放的,前提是pc端瀏覽器需要支持flashplayer
           
          使用m3u8我們需要將mp4視頻進(jìn)行轉(zhuǎn)碼,命令如下:
           
          ffmpeg -i 2.mp4 -codec copy -vbsf h264_mp4toannexb -map 0 -f segment -segment_list m3u8/2.m3u8 -segment_time 10 m3u8/out%03d.ts
           
          G:\phpstudy_pro\wwwroot\ebiaoip-v\public>ffmpeg -i 2.mp4 -codec copy -vbsf h264_
          mp4toannexb -map 0 -f segment -segment_list m3u8/2.m3u8 -segment_time 10 m3u8/ou
          t%03d.ts
          ffmpeg version n4.3.1-23-gc19641b2e2 Copyright (c) 2000-2020 the FFmpeg develope
          rs
            built with gcc 9.3-win32 (GCC) 20200320
            configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-conf
          ig=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw
          32 --enable-gpl --enable-version3 --disable-debug --enable-iconv --enable-zlib -
          -enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-l
          zma --enable-fontconfig --enable-opencl --enable-libvmaf --disable-vulkan --enab
          le-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --
          enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --ena
          ble-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libt
          heora --enable-libvpx --enable-libwebp --enable-libmfx --enable-libopencore-amrn
          b --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-lib
          rubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --en
          able-libtwolame --enable-libvidstab --enable-libx264 --enable-libx265 --enable-l
          ibxavs2 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --e
          xtra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp
            libavutil      56. 51.100 / 56. 51.100
            libavcodec     58. 91.100 / 58. 91.100
            libavformat    58. 45.100 / 58. 45.100
            libavdevice    58. 10.100 / 58. 10.100
            libavfilter     7. 85.100 /  7. 85.100
            libswscale      5.  7.100 /  5.  7.100
            libswresample   3.  7.100 /  3.  7.100
            libpostproc    55.  7.100 / 55.  7.100
          Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2.mp4':
            Metadata:
              major_brand     : isom
              minor_version   : 512
              compatible_brands: isomiso2avc1mp41
              encoder         : Lavf57.58.101
            Duration: 00:04:10.13, start: 0.000000, bitrate: 161 kb/s
              Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x368 [
          SAR 1:1 DAR 40:23], 107 kb/s, 20 fps, 20 tbr, 10240 tbn, 80 tbc (default)
              Metadata:
                handler_name    : VideoHandler
              Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, flt
          p, 48 kb/s (default)
              Metadata:
                handler_name    : SoundHandler
          [segment @ 00000000004b8d00] Opening 'm3u8/out000.ts' for writing
          Output #0, segment, to 'm3u8/out%03d.ts':
            Metadata:
              major_brand     : isom
              minor_version   : 512
              compatible_brands: isomiso2avc1mp41
              encoder         : Lavf58.45.100
              Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x368 [
          SAR 1:1 DAR 40:23], q=2-31, 107 kb/s, 20 fps, 20 tbr, 90k tbn, 40 tbc (default)
              Metadata:
                handler_name    : VideoHandler
              Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, flt
          p, 48 kb/s (default)
              Metadata:
                handler_name    : SoundHandler
          Stream mapping:
            Stream #0:0 -> #0:0 (copy)
            Stream #0:1 -> #0:1 (copy)
          Press [q] to stop, [?] for help
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out001.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out002.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out003.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out004.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out005.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out006.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out007.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out008.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out009.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out010.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out011.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out012.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out013.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out014.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out015.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out016.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out017.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out018.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/out019.ts' for writing
          [segment @ 00000000004b8d00] Opening 'm3u8/2.m3u8.tmp' for writing
          frame= 4996 fps=0.0 q=-1.0 Lsize=N/A time=00:04:10.09 bitrate=N/A speed=1.44e+03
          x
          video:3274kB audio:1468kB subtitle:0kB other streams:0kB global headers:0kB muxi
          ng overhead: unknown
           
          轉(zhuǎn)碼成功之后就可以在播放器中使用,加載速度快多啦!

          視頻流使用FFmpeg將mp4視頻轉(zhuǎn)換為m3u8/ts文件
          視頻流使用FFmpeg將mp4視頻轉(zhuǎn)換為m3u8/ts文件
           
          如需網(wǎng)站開發(fā)、微信開發(fā),接口開發(fā),建站功能定制開發(fā),歡迎致電風(fēng)信網(wǎng)絡(luò),電話:189-8648-0214(微信同號(hào))
          欄目列表
          推薦內(nèi)容
          熱點(diǎn)內(nèi)容
          展開