我有一个转码视频的项目。现在我将视频的绝对路径作为输入变量传递，如下：
inputfile = str(MEDIA_ROOT)+'/'+str(video.original_video)
这里MEDIA_ROOT是/ home / user / code / Project / Viu / static / media
然后
subprocess.call(
'ffmpeg -i '+ inputfile +' -codec:v libx264 -crf 23 -preset faster -codec:a libfdk_aac -vbr 4 \-movflags faststart -vf scale="720:trunc(ow/a/2)*2",format=yuv420p '+ outputfile,
shell=True
)
现在可以了。但我会将这些视频保存在服务器的不同位置，如何通过互联网或http转换该位置的视频？
我试过了：
inputfile = 'http://localhost:8000/media/'+str(video.original_video)
但是我得到了错误：
[2015-07-19 13:27:14,933: INFO/MainProcess] Received task: vids.tasks.convert_video[41e36bc6-0d6a-4756-99fb-cb8005a4fbe3]
[2015-07-19 13:27:14,944: INFO/Worker-2] running
ffmpeg version N-73632-g39a04eb Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libdcadec --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvo-aacenc --enable-libvidstab
libavutil 54. 28.100 / 54. 28.100
libavcodec 56. 47.100 / 56. 47.100
libavformat 56. 40.100 / 56. 40.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 21.100 / 5. 21.100
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.100 / 1. 2.100
libpostproc 53. 3.100 / 53. 3.100
[h264 @ 0x9d46060] AVC: nal size 371788
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -530775991
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 1666002647
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -1986130888
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -710433401
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -723464079
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 378679291
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 1766542096
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -470898291
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -402699497
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 64441658
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 1892506351
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 1362707160
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -1845744002
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -327264949
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -14647022
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 332446592
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -673972274
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 2091272674
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -1219100086
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -1117890504
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -1221891828
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 1674360084
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size 1114909540
[h264 @ 0x9d46060] no frame!
[h264 @ 0x9d46060] AVC: nal size -1619615275
[h264 @ 0x9d46060] no frame!
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x9d43be0] decoding for stream 0 failed
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x9d43be0] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none(bt470bg/bt709/bt709), 1920x1080, 43842 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://localhost:8000/media/uploaded_files/1437312433_3_test1.MOV':
Metadata:
major_brand : qt
minor_version : 537331968
compatible_brands: qt CAEP
creation_time : 2014-07-25 22:11:02
Duration: 00:00:48.68, start: 0.000000, bitrate: 8611 kb/s
Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), none(bt470bg/bt709/bt709), 1920x1080, 43842 kb/s, 25 fps, 25 tbr, 25k tbn, 50k tbc (default)
Metadata:
creation_time : 2014-07-25 22:11:02
Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
Metadata:
creation_time : 2014-07-25 22:11:02
[buffer @ 0x9d47c40] Unable to parse option value "-1" as pixel format
Last message repeated 1 times
[buffer @ 0x9d47c40] Error setting option pix_fmt to value -1.
[graph 0 input from stream 0:0 @ 0x9de4d00] Error applying options to the filter.
Error opening filters!
我将非常感谢您的帮助和指导。谢谢。