从一组“YYYY-MM-DD”日期的图片中使用Python+GST制作视频

最简单的方法是创建链接/将这些文件重命名为序列号(使用 n=0 for f in $(ls * | sort); do ln -s $f $n && $n=$((n+1))

gst-launch multifilesrc location=%d ! pngdec ! theoraenc ! oggmux ! filesink location=movie.ogg

按日期对文件名进行排序非常简单:

import datetime, os

def key( filename ):
    return datetime.datetime.strptime( 
        filename.rsplit( ".", 1 )[ 0 ], 
        "%Y-%m-%d"
    )

foo = sorted( os.listdir( ... ), key = key )

count = 0
def renamer( name ):
    os.rename( name, "{0}.png".format( count ) )
    count += 1

map( renamer, foo )

基于 the Bash code elmarco posted

# Untested example code. #

import os tempfile shutil

# Make a temporary directory: `temp`:
temp = tempfile.mkdtemp()  

# List photos:
files = os.listdir(os.path.expanduser('~/.photostory/photos/'))

# Sort photos (by date):
files.sort()

# Symlink photos to `temp`:
for i in range(len(files)):
    os.symlink(files[i], os.path.join(temp, str(i)+'.png')  

# Perform GStreamer operations on `temp`. #

# Remove `temp`:
shutil.rmtree(temp)