0
我試圖編寫一個腳本,可以從Web服務器下載文件到內存,將其直接管道到ffmpeg的ffprobe模塊,並返回文件的詳細信息由ffprobe決定。這是我目前有:管道到ffmpeg失敗 - 「管道::沒有足夠的空間」
import requests
from io import BytesIO
from subprocess import Popen, PIPE
def get_file(url):
r = requests.get(url)
file = BytesIO(r.content).seek(0)
return file
def get_info(file):
p = Popen(["ffprobe", "-i", "-"], stdin=file, stdout=PIPE, stderr=PIPE)
output = p.communicate()[1].decode("utf8")
return output
下面是一個文件裝載的open()輸出比較:
ffprobe version N-66931-gbbd8c85 Copyright (c) 2007-2014 the FFmpeg developers
built on Oct 17 2014 01:05:12 with gcc 4.9.1 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 54. 10.100/54. 10.100
libavcodec 56. 8.100/56. 8.100
libavformat 56. 9.100/56. 9.100
libavdevice 56. 1.100/56. 1.100
libavfilter 5. 1.106/5. 1.106
libswscale 3. 1.101/3. 1.101
libswresample 1. 1.100/1. 1.100
libpostproc 53. 3.100/53. 3.100
Input #0, mp3, from 'pipe:':
Metadata:
title : Test File
Duration: N/A, start: 0.000000, bitrate: 320 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
Metadata:
title : Test File
...和文件,get_file()下載:
ffprobe version N-66931-gbbd8c85 Copyright (c) 2007-2014 the FFmpeg developers
built on Oct 17 2014 01:05:12 with gcc 4.9.1 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 54. 10.100/54. 10.100
libavcodec 56. 8.100/56. 8.100
libavformat 56. 9.100/56. 9.100
libavdevice 56. 1.100/56. 1.100
libavfilter 5. 1.106/5. 1.106
libswscale 3. 1.101/3. 1.101
libswresample 1. 1.100/1. 1.100
libpostproc 53. 3.100/53. 3.100
pipe:: Not enough space
起初,這看起來像內存不足,但我正在使用的文件很小(< 10MB),所以我不認爲這是問題所在。顯然,雖然,我做錯了什麼...任何人都可以給我任何建議,爲什麼管道在這種情況下會失敗?
你得到這個失敗在「只是」命令行上運行它?把它發送到ffmpeg怎麼樣? – rogerdpack
對不起?這些輸出是通過從python到ffprobe的管道文件生成的。無論我嘗試使用哪個音頻文件,都會發生「空間不足」警告。如果我下載了相同的音頻文件,將會成功處理,然後運行ffprobe,但我想避免寫入磁盤。 –
你有沒有想過這個? –