align subtitles to clips
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parent
4f88792491
commit
609a1209ab
2 changed files with 58 additions and 11 deletions
31
edit.py
31
edit.py
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@ -1,6 +1,7 @@
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#!/usr/bin/python3
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import os
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import json
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import math
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import ox
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import ox.web.auth
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@ -46,7 +47,7 @@ def sort_clips(edit, sort):
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'id', 'index', 'in', 'out', 'duration',
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'title', 'director', 'year', 'videoRatio'
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]:
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s = sorted(clips, key=lambda c: (str(c.get(sort, last)), c['in'], c['out']))
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s = sorted(clips, key=lambda c: (str(c.get(sort, last)), c['title'], c['in'], c['out']))
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if reverse:
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s = reversed(s)
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else:
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@ -77,6 +78,15 @@ if __name__ == '__main__':
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position = 0
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for clip in sort_clips(edit, sort_by):
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clip_subtitles = []
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for sub in clip['layers']['subtitles']:
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subtitles.append({
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'in': position,
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'out': position + (sub['out'] - sub['in']),
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'value': sub['value'].replace('<br/>', '\n').replace('<br>', '\n').replace('\n\n', '\n'),
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})
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clip_subtitles.append(sub['value'].replace('<br/>', '\n').replace('<br>', '\n').replace('\n\n', '\n'))
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part_pos = 0
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for i, duration in enumerate(clip['durations']):
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if part_pos + duration < clip['in']:
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@ -84,6 +94,10 @@ if __name__ == '__main__':
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elif part_pos <= clip['in']:
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stream_in = clip['in'] - part_pos
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stream_out = min(clip['out'] - part_pos, duration)
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stream_in = math.ceil(stream_in / (1/25)) * 1/25
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stream_out = math.ceil(stream_out / (1/25)) * 1/25
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part_pos += duration
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info = get_info(api, clip['streams'][i])
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videos.append({
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@ -91,11 +105,14 @@ if __name__ == '__main__':
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'path': os.path.join(prefix, info['path']),
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'resolution': info['resolution'],
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'in': stream_in,
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'out': stream_out
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'out': stream_out,
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'subtitles': '\n'.join(clip_subtitles)
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})
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elif clip['out'] > part_pos:
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stream_in = part_pos
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stream_out = min(clip['out'] - part_pos, duration)
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stream_in = math.ceil(stream_in / (1/25)) * 1/25
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stream_out = math.ceil(stream_out / (1/25)) * 1/25
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part_pos += duration
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info = get_info(api, clip['streams'][i])
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videos.append({
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@ -103,17 +120,13 @@ if __name__ == '__main__':
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'path': info['path'],
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'resolution': info['resolution'],
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'in': stream_in,
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'out': stream_out
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'out': stream_out,
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'subtitles': '\n'.join(clip_subtitles)
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})
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for sub in clip['layers']['subtitles']:
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subtitles.append({
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'in': position,
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'out': position + (sub['out'] - sub['in']),
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'value': sub['value'].replace('<br/>', '\n').replace('<br>', '\n').replace('\n\n', '\n'),
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})
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position += clip['duration']
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position = math.ceil(position / (1/25)) * 1/25
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name = normalize(edit_id)
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if sort_by != 'year':
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38
ffmpeg.py
38
ffmpeg.py
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@ -3,6 +3,7 @@ import json
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import os
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import subprocess
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import sys
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import ox
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def run(cmd):
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#print(' '.join('"%s"' % c for c in cmd))
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@ -12,7 +13,7 @@ def run(cmd):
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edit_json = sys.argv[1]
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edit = json.load(open(edit_json))
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render = '/tmp/out'
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render = './cache'
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output = os.path.splitext(edit_json)[0] + '.mp4'
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height = 480
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aspect = 16/9
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@ -23,10 +24,23 @@ if not os.path.exists(render):
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os.makedirs(render)
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files = []
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edit_duration = 0
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subtitles = []
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position = 0
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for clip in edit:
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out = render + '/%s_%0.3f-%0.3f.ts' % (clip['oshash'], clip['in'], clip['out'])
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edit_duration += (clip['out']-clip['in'])
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files.append(out)
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if os.path.exists(out):
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duration = ox.avinfo(out)['duration']
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if clip['subtitles']:
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subtitles.append({
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'in': position,
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'out': position+duration,
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'value': clip['subtitles']
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})
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position += duration
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print(out, duration, (clip['out'] - clip['in']))
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continue
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clip_aspect = clip['resolution'][0] / clip['resolution'][1]
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if clip_aspect < aspect:
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@ -44,12 +58,14 @@ for clip in edit:
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offset = int(((y - height) / 3))
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vf += ',crop=w=%s:h=%s:x=0:y=%s' % (width, height, offset)
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options = [
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'-map_metadata', '-1',
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'-vf', vf,
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'-aspect', str(aspect),
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'-c:v', 'libx264',
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'-b:v', '2M',
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'-preset:v', 'medium', '-profile:v', 'high', '-level:v', '4.0',
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'-r:v', '25',
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'-map', '0:0,0:0', '-map', '0:1,0:1',
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'-r', '25',
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'-c:a', 'aac',
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'-ar', '48000',
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'-ac', '2',
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@ -65,6 +81,15 @@ for clip in edit:
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out
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]
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run(cmd)
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duration = ox.avinfo(out)['duration']
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if clip['subtitles']:
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subtitles.append({
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'in': position,
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'out': position+duration,
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'value': clip['subtitles']
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})
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position += duration
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print(out, duration, (clip['out'] - clip['in']))
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txt = output + '.txt'
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with open(txt, 'w') as fd:
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@ -72,3 +97,12 @@ with open(txt, 'w') as fd:
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cmd = ['ffmpeg', '-y', '-f', 'concat', '-safe', '0', '-i', txt, '-c', 'copy', output]
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run(cmd)
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os.unlink(txt)
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srt = output.replace('.mp4', '.srt')
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with open(srt, 'wb') as fd:
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fd.write(ox.srt.encode(subtitles))
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duration = ox.avinfo(output)['duration']
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print('file is %d, edit should be %d' % (duration, edit_duration))
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