0x2620/pandora_render
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use file for large edits

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j 2017-08-09 16:40:28 +02:00
parent 62831c5067
commit f07318bea7
1 changed files with 12 additions and 9 deletions
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21
ffmpeg.py Normal file → Executable file
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@ -5,8 +5,8 @@ import subprocess
import sys import sys
def run(cmd): def run(cmd):
print(' '.join('"%s"' % c for c in cmd)) #print(' '.join('"%s"' % c for c in cmd))
#subprocess.call(cmd) subprocess.call(cmd)
edit_json = sys.argv[1] edit_json = sys.argv[1]
@ -18,10 +18,12 @@ height = 270
aspect = 16/9 aspect = 16/9
width = int(height * aspect) width = int(height * aspect)
n = 0
files = [] files = []
for clip in edit: for clip in edit:
out = render + '/%06d.ts' % n out = render + '/%s_%0.3f-%0.3f.ts' % (clip['oshash'], clip['in'], clip['out'])
files.append(out)
if os.path.exists(out):
continue
clip_aspect = clip['resolution'][0] / clip['resolution'][1] clip_aspect = clip['resolution'][0] / clip['resolution'][1]
if clip_aspect < aspect: if clip_aspect < aspect:
x = width x = width
@ -37,7 +39,7 @@ for clip in edit:
vf += ',crop=w=%s:h=%s:x=0:y=%s' % (width, height, offset) vf += ',crop=w=%s:h=%s:x=0:y=%s' % (width, height, offset)
options = [ options = [
'-vf', vf, '-vf', vf,
'-aspect', aspect, '-aspect', str(aspect),
'-c:v', 'libx264', '-c:v', 'libx264',
'-b:v', '8M', '-b:v', '8M',
'-r:v', '25', '-r:v', '25',
@ -54,10 +56,11 @@ for clip in edit:
'-t', str(clip['out'] - clip['in']), '-t', str(clip['out'] - clip['in']),
out out
] ]
files.append(out)
run(cmd) run(cmd)
n += 1
files = '|'.join(files) txt = output + '.txt'
cmd = ['ffmpeg', '-y', '-i', 'concat:' + files, '-c', 'copy', output] with open(txt, 'w') as fd:
fd.write('file ' + '\nfile '.join(files))
cmd = ['ffmpeg', '-y', '-f', 'concat', '-safe', '0', '-i', txt, '-c', 'copy', output]
run(cmd) run(cmd)
os.unlink(txt)