使用python 下载m3u8格式视频,并使用ffmpeg 合成视频

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2018/07/26 15:00
阅读数 2.4K

使用python 下载m3u8格式视频,并合成


# -*- coding: utf-8 -*-
# Created on 2018/07/26
import os
import requests


"""
下载M3U8文件里的所有片段
"""

def download(url):
    download_path = os.getcwd() + "/download"
    if not os.path.exists(download_path):
        os.mkdir(download_path,0777)
    all_content = requests.get(url).text  # 获取M3U8的文件内容
    file_line = all_content.split("\r\n")  # 读取文件里的每一行
    # 通过判断文件头来确定是否是M3U8文件
    if file_line[0] != "#EXTM3U":
        raise BaseException(u"非M3U8的链接")
    else:
        unknow = True  # 用来判断是否找到了下载的地址
        for index, line in enumerate(file_line):
            if "EXTINF" in line:
                unknow = False
                # 拼出ts片段的URL
                pd_url = url.rsplit("/", 1)[0] + "/" + file_line[index + 1]
                print pd_url
                res = requests.get(pd_url)
                c_fule_name = str(file_line[index + 1]) 
                with open(download_path + "/" + c_fule_name, 'ab') as f:
                    f.write(res.content)
                    f.flush()
        if unknow:
            raise BaseException("未找到对应的下载链接")
        else:
            print u"下载完成"

if __name__ == '__main__':
    download("http://hzresource.cdn.bcebos.com/hls/geruikldsl/hls.m3u8")  

使用shell 脚本 把下载的ts文件追加到一个文件中

root@alex-virtual-machine:/www/movie/v# for i in `ls *.ts`; do cat $i >> com.ts; done

root@alex-virtual-machine:/www/movie/v# ls
com.ts     out007.ts  out015.ts  out023.ts  out031.ts  out039.ts  out047.ts  out055.ts  out063.ts  out071.ts  out079.ts  out087.ts  out095.ts  out103.ts  out111.ts  out119.ts  out127.ts  out135.ts
out000.ts  out008.ts  out016.ts  out024.ts  out032.ts  out040.ts  out048.ts  out056.ts  out064.ts  out072.ts  out080.ts  out088.ts  out096.ts  out104.ts  out112.ts  out120.ts  out128.ts  out136.ts
out001.ts  out009.ts  out017.ts  out025.ts  out033.ts  out041.ts  out049.ts  out057.ts  out065.ts  out073.ts  out081.ts  out089.ts  out097.ts  out105.ts  out113.ts  out121.ts  out129.ts  out137.ts
out002.ts  out010.ts  out018.ts  out026.ts  out034.ts  out042.ts  out050.ts  out058.ts  out066.ts  out074.ts  out082.ts  out090.ts  out098.ts  out106.ts  out114.ts  out122.ts  out130.ts  out138.ts
out003.ts  out011.ts  out019.ts  out027.ts  out035.ts  out043.ts  out051.ts  out059.ts  out067.ts  out075.ts  out083.ts  out091.ts  out099.ts  out107.ts  out115.ts  out123.ts  out131.ts  out139.ts
out004.ts  out012.ts  out020.ts  out028.ts  out036.ts  out044.ts  out052.ts  out060.ts  out068.ts  out076.ts  out084.ts  out092.ts  out100.ts  out108.ts  out116.ts  out124.ts  out132.ts  out140.ts
out005.ts  out013.ts  out021.ts  out029.ts  out037.ts  out045.ts  out053.ts  out061.ts  out069.ts  out077.ts  out085.ts  out093.ts  out101.ts  out109.ts  out117.ts  out125.ts  out133.ts  out.m3u8
out006.ts  out014.ts  out022.ts  out030.ts  out038.ts  out046.ts  out054.ts  out062.ts  out070.ts  out078.ts  out086.ts  out094.ts  out102.ts  out110.ts  out118.ts  out126.ts  out134.ts


把合成后的ts文件转换成mp4文件即可

root@alex-virtual-machine:/www/movie/v# ffmpeg -i com.ts -acodec copy -vcodec copy -bsf aac_adtstoasc output.mp4
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mpegts, from 'com.ts':
  Duration: 00:23:21.27, start: 1.400000, bitrate: 265 kb/s
  Program 1 
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709), 1366x768 [SAR 1:1 DAR 683:384], 15 fps, 15 tbr, 90k tbn, 30 tbc
    Stream #0:1[0x101](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 58 kb/s
[mp4 @ 0x1c52600] Codec for stream 0 does not use global headers but container format requires global headers
[mp4 @ 0x1c52600] Codec for stream 1 does not use global headers but container format requires global headers
Output #0, mp4, to 'output.mp4':
  Metadata:
    encoder         : Lavf56.40.101
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1366x768 [SAR 1:1 DAR 683:384], q=2-31, 15 fps, 15 tbr, 90k tbn, 90k tbc
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 58 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=21019 fps=0.0 q=-1.0 Lsize=   40433kB time=00:23:21.30 bitrate= 236.4kbits/s    
video:30668kB audio:9136kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.579515%

 

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