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AES-encrypted stream reading protocol.
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The accepted options are:
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key
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Set the AES decryption key binary block from given hexadecimal representation.
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iv
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Set the AES decryption initialization vector binary block from given hexadecimal representation.
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Accepted URL formats:
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crypto:URL
- crypto+URL
从内容中可以看到,crypto加密采用的是AES的加密,并且crypto在FFmpeg中是一种协议:可以使用ffmpeg -protocols查看协议列表:
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liuqideMacBook-Pro:hls liuqi$ ffmpeg -protocols
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ffmpeg version N-89165-ga5870cb37f Copyright (c) 2000-2017 the FFmpeg developers
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built with Apple LLVM version 9.0.0 (clang-900.0.38)
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configuration: --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libspeex --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-version3 --cc='ccache gcc' --enable-nonfree --enable-videotoolbox
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libavutil 56. 0.100 / 56. 0.100
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libavcodec 58. 3.105 / 58. 3.105
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libavformat 58. 2.102 / 58. 2.102
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libavdevice 58. 0.100 / 58. 0.100
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libavfilter 7. 2.100 / 7. 2.100
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libswscale 5. 0.101 / 5. 0.101
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libswresample 3. 0.101 / 3. 0.101
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libpostproc 55. 0.100 / 55. 0.100
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Supported file protocols:
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Input:
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async
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bluray
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cache
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concat
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crypto
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data
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ffrtmphttp
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file
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ftp
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gopher
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hls
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http
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httpproxy
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https
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mmsh
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mmst
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pipe
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rtmp
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rtmps
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rtmpt
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rtmpts
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rtp
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srtp
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subfile
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tcp
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tls
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udp
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udplite
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unix
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Output:
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crypto
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ffrtmphttp
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file
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ftp
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gopher
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http
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httpproxy
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https
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icecast
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md5
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pipe
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prompeg
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rtmp
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rtmps
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rtmpt
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rtmpts
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rtp
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srtp
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tee
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tcp
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tls
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udp
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udplite
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unix
- liuqideMacBook-Pro:hls liuqi$
首先自己生成一个key串:
点击(此处)折叠或打开
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liuqideMacBook-Pro:ffmpeg liuqi$ echo $(openssl rand -hex 16)
- 855582bceff7de4c3590bf1640c94f05
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- 0123456789ABCDEF0123456789ABCDEF
输出信息:
点击(此处)折叠或打开
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liuqideMacBook-Pro:hls liuqi$ ffmpeg -i ~/Movies/objectC/bbs.chinaffmpeg.com孙悟空.mp4 -c copy -f mpegts -key "855582bceff7de4c3590bf1640c94f05" -iv "0123456789ABCDEF0123456789ABCDEF" crypto:output.mpegts
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ffmpeg version bbs.chinaffmpeg.com孙悟空专属版本 Copyright (c) 2000-2017 the FFmpeg developers
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built with Apple LLVM version 9.0.0 (clang-900.0.38)
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configuration: --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libspeex --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-version3 --cc='ccache gcc' --enable-nonfree --enable-videotoolbox
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libavutil 56. 0.100 / 56. 0.100
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libavcodec 58. 3.105 / 58. 3.105
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libavformat 58. 2.102 / 58. 2.102
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libavdevice 58. 0.100 / 58. 0.100
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libavfilter 7. 2.100 / 7. 2.100
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libswscale 5. 0.101 / 5. 0.101
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libswresample 3. 0.101 / 3. 0.101
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libpostproc 55. 0.100 / 55. 0.100
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Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ‘/Users/liuqi/Movies/objectC/bbs.chinaffmpeg.com孙悟空.mp4’:
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Metadata:
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major_brand : mp42
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minor_version : 0
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compatible_brands: isommp42
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creation_time : 2016-08-13T00:36:19.000000Z
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Duration: 00:03:18.79, start: 0.000000, bitrate: 1849 kb/s
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Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 1719 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
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Metadata:
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creation_time : 2016-08-13T00:36:19.000000Z
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handler_name : ISO Media file produced by Google Inc.
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Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
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Metadata:
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creation_time : 2016-08-13T00:36:19.000000Z
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handler_name : ISO Media file produced by Google Inc.
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Output #0, mpegts, to 'crypto:output.mpegts':
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Metadata:
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major_brand : mp42
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minor_version : 0
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compatible_brands: isommp42
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encoder : Lavf58.2.102
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Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 1719 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc (default)
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Metadata:
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creation_time : 2016-08-13T00:36:19.000000Z
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handler_name : ISO Media file produced by Google Inc.
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Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
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Metadata:
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creation_time : 2016-08-13T00:36:19.000000Z
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handler_name : ISO Media file produced by Google Inc.
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Stream mapping:
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Stream #0:0 -> #0:0 (copy)
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Stream #0:1 -> #0:1 (copy)
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Press [q] to stop, [?] for help
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frame= 5957 fps=0.0 q=-1.0 Lsize= 49176kB time=00:03:18.76 bitrate=2026.8kbits/s speed= 224x
- video:41725kB audio:3048kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 9.836025%
1. 使用key与iv正常播放:
点击(此处)折叠或打开
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liuqideMacBook-Pro:hls liuqi$ ffmpeg -key "855582bceff7de4c3590bf1640c94f05" -iv "0123456789ABCDEF0123456789ABCDEA" -i crypto:output.mpegts
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Input #0, mpegts, from 'crypto:output.mpegts':
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Duration: 00:03:18.77, start: 1.433367, bitrate: 2026 kb/s
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Program 1
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Metadata:
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service_name : Service01
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service_provider: FFmpeg
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Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
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Stream #0:1[0x101](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 126 kb/s
- At least one output file must be specified
点击(此处)折叠或打开
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liuqideMacBook-Pro:hls liuqi$ ffmpeg -key "355582bceff7de4c3590bf1640c94f05" -iv "0123456789ABCDEF0123456789ABCDEA" -i crypto:output.mpegts
- crypto:output.mpegts: Invalid data found when processing input
点击(此处)折叠或打开
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liuqideMacBook-Pro:hls liuqi$ ffmpeg -i output.mpegts
- output.mpegts: Invalid data found when processing input
点击(此处)折叠或打开
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liuqideMacBook-Pro:hls liuqi$ ls output.mpegts
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output.mpegts
- liuqideMacBook-Pro:hls liuqi$