2 pass encoding, merge encoding settings from server
This commit is contained in:
parent
d8c4de473c
commit
3c10815073
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@ -439,9 +439,12 @@ class Client(object):
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if os.path.exists(p):
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info = utils.avinfo(p)
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profile = self.profile(info)
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cmd = encode_cmd(p, self.media_cache(), profile, info)
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cmd = [' ' in c and u'"%s"' % c or c for c in cmd]
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print(u' '.join(cmd))
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cmds = encode_cmd(p, self.media_cache(), profile, info)
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output = []
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for cmd in cmds:
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cmd = [' ' in c and u'"%s"' % c or c for c in cmd]
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output.append(u' '.join(cmd))
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print(' && '.join(output))
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def save_config(self):
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if not self._configfile:
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@ -1,18 +1,20 @@
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# GPL 2010
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from __future__ import division, with_statement, print_function, absolute_import
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# GPL 2017
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from __future__ import division, print_function, absolute_import
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from glob import glob
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import os
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import shutil
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import subprocess
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import sys
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import shutil
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import ox
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from .utils import AspectRatio, run_command, basedir
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FFMPEG_SUPPORTS_VP9 = False
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def command(program):
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local = os.path.join(basedir(), 'bin', program)
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@ -27,33 +29,6 @@ def frame(video, target, position):
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if fdir and not os.path.exists(fdir):
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os.makedirs(fdir)
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'''
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# oxframe
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cmd = ['oxframe', '-i', video, '-p', str(position), '-o', target]
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print(cmd)
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r = run_command(cmd)
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return r == 0
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'''
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'''
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# mplayer
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cwd = os.getcwd()
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target = os.path.abspath(target)
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framedir = tempfile.mkdtemp()
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os.chdir(framedir)
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cmd = ['mplayer', '-noautosub', video, '-ss', str(position), '-frames', '2', '-vo', 'png:z=9', '-ao', 'null']
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print(cmd)
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r = run_command(cmd)
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images = glob('%s%s*.png' % (framedir, os.sep))
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if images:
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shutil.move(images[-1], target)
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r = 0
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else:
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r = 1
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os.chdir(cwd)
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shutil.rmtree(framedir)
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return r == 0
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'''
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# ffmpeg
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pre = position - 2
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if pre < 0:
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@ -67,14 +42,20 @@ def frame(video, target, position):
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return r == 0
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def supported_formats():
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p = subprocess.Popen([command('ffmpeg'), '-codecs'],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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ffmpeg = command('ffmpeg')
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if ffmpeg is None:
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return None
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p = subprocess.Popen([ffmpeg, '-codecs'],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
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stdout, stderr = p.communicate()
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stdout = stdout.decode()
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stdout = stdout.decode('utf-8')
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return {
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# 'ogg': 'libtheora' in stdout and 'libvorbis' in stdout,
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'ogg': 'libtheora' in stdout and 'libvorbis' in stdout,
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'webm': 'libvpx' in stdout and 'libvorbis' in stdout,
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'mp4': 'libx264' in stdout and 'libvo_aacenc' in stdout,
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'vp8': 'libvpx' in stdout and 'libvorbis' in stdout,
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'vp9': 'libvpx-vp9' in stdout and 'libopus' in stdout,
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'mp4': 'libx264' in stdout and 'DEA.L. aac' in stdout,
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'h264': 'libx264' in stdout and 'DEA.L. aac' in stdout,
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}
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def video_cmd(video, target, profile, info):
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@ -92,8 +73,12 @@ def video_cmd(video, target, profile, info):
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level / speedlevel
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bt?
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'''
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support = supported_formats()
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profile, format = profile.split('.')
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bpp = 0.17
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video_codec = 'libvpx'
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audio_codec = 'libvorbis'
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if profile == '1080p':
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height = 1080
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@ -153,22 +138,43 @@ def video_cmd(video, target, profile, info):
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else:
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height = 96
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#if support['vp9']:
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# audio_codec = 'libopus'
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# video_codec = 'libvpx-vp9'
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audiorate = 22050
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audioquality = -1
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audiobitrate = '22k'
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audiochannels = 1
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if format == 'webm' and audio_codec == 'libopus':
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audiorate = 48000
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if not audiobitrate:
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audiobitrate = '%sk' % {
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-1: 32, 0: 48, 1: 64, 2: 96, 3: 112, 4: 128,
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5: 144, 6: 160, 7: 192, 8: 256, 9: 320, 10: 512,
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}[audioquality]
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if format == 'webm' and video_codec == 'libvpx-vp9':
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bpp = 0.15
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if info['video'] and 'display_aspect_ratio' in info['video'][0]:
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# dont make video bigger
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height = min(height, info['video'][0]['height'])
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dar = AspectRatio(info['video'][0]['display_aspect_ratio'])
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width = int(dar * height)
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width += width % 2
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aspect = dar.ratio
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# use 1:1 pixel aspect ratio if dar is close to that
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if abs(width/height - dar) < 0.02:
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aspect = '%s:%s' % (width, height)
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if info['video'][0]['framerate'] == '0:0':
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fps = 25
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else:
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fps = AspectRatio(info['video'][0]['framerate'])
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width = int(dar * height)
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width += width % 2
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extra = []
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if fps == 50:
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fps = 25
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@ -177,11 +183,8 @@ def video_cmd(video, target, profile, info):
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fps = 30
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extra += ['-r', '30']
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fps = min(float(fps), 30)
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bitrate = height*width*fps*bpp/1000
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aspect = dar.ratio
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# use 1:1 pixel aspect ratio if dar is close to that
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if abs(width/height - dar) < 0.02:
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aspect = '%s:%s' % (width, height)
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video_settings = [
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'-vb', '%dk' % bitrate,
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@ -191,74 +194,54 @@ def video_cmd(video, target, profile, info):
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] + extra
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if format == 'webm':
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video_settings += [
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'-vcodec', 'libvpx',
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'-vcodec', video_codec,
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'-quality', 'good',
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'-cpu-used', '0',
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'-cpu-used', '1' if video_codec == 'libvpx-vp9' else '0',
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'-lag-in-frames', '16',
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'-auto-alt-ref', '1',
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]
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if video_codec == 'libvpx-vp9':
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video_settings += [
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'-tile-columns', '6',
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'-frame-parallel', '1',
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]
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if format == 'mp4':
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# quicktime does not support bpyramid
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'''
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video_settings += [
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'-vcodec', 'libx264',
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'-flags', '+loop+mv4',
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'-cmp', '256',
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'-partitions', '+parti4x4+parti8x8+partp4x4+partp8x8+partb8x8',
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'-me_method', 'hex',
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'-subq', '7',
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'-trellis', '1',
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'-refs', '5',
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'-bf', '3',
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'-flags2', '+bpyramid+wpred+mixed_refs+dct8x8',
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'-coder', '1',
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'-me_range', '16',
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'-keyint_min', '25', #FIXME: should this be related to fps?
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'-sc_threshold','40',
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'-i_qfactor', '0.71',
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'-qmin', '10', '-qmax', '51',
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'-qdiff', '4'
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]
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'''
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video_settings += [
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'-vcodec', 'libx264',
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'-flags', '+loop+mv4',
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'-cmp', '256',
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'-partitions', '+parti4x4+parti8x8+partp4x4+partp8x8+partb8x8',
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'-me_method', 'hex',
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'-subq', '7',
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'-trellis', '1',
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'-refs', '5',
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'-bf', '0',
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'-flags2', '+mixed_refs',
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'-coder', '0',
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'-me_range', '16',
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'-sc_threshold', '40',
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'-i_qfactor', '0.71',
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'-qmin', '10', '-qmax', '51',
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'-qdiff', '4'
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'-c:v', 'libx264',
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'-preset:v', 'medium',
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'-profile:v', 'high',
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'-level', '4.0',
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]
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video_settings += ['-map', '0:%s,0:0' % info['video'][0]['id']]
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audio_only = False
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else:
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video_settings = ['-vn']
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audio_only = True
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if info['audio']:
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# ignore some unsupported audio codecs
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if info['audio'] and info['audio'][0].get('codec') in ('qdmc', ):
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audio_settings = ['-an']
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elif info['audio']:
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if video_settings == ['-vn'] or not info['video']:
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n = 0
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else:
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n = 1
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audio_settings = []
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# mix 2 mono channels into stereo(common for fcp dv mov files)
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if len(info['audio']) == 2 \
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audio_track = 0
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if audio_track == 0 and len(info['audio']) == 2 \
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and len(list(filter(None, [a['channels'] == 1 or None for a in info['audio']]))) == 2:
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video_settings += [
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audio_settings += [
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'-filter_complex',
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'[0:%s][0:%s] amerge' % (info['audio'][0]['id'], info['audio'][1]['id'])
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]
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mono_mix = True
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else:
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video_settings += ['-map', '0:%s,0:%s' % (info['audio'][0]['id'], n)]
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mono_mix = False
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audio_settings = ['-ar', str(audiorate), '-aq', str(audioquality)]
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audio_settings += ['-map', '0:%s,0:%s' % (info['audio'][audio_track]['id'], n)]
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audio_settings += ['-ar', str(audiorate)]
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if audio_codec != 'libopus':
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audio_settings += ['-aq', str(audioquality)]
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if mono_mix:
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ac = 2
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else:
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@ -271,57 +254,88 @@ def video_cmd(video, target, profile, info):
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if audiobitrate:
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audio_settings += ['-ab', audiobitrate]
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if format == 'mp4':
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audio_settings += ['-acodec', 'libvo_aacenc']
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audio_settings += ['-c:a', 'aac', '-strict', '-2']
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elif audio_codec == 'libopus':
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audio_settings += ['-c:a', 'libopus', '-frame_duration', '60']
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else:
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audio_settings += ['-acodec', 'libvorbis']
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audio_settings += ['-c:a', audio_codec]
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else:
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audio_settings = ['-an']
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cmd = [command('ffmpeg'), '-y', '-i', video, '-threads', '4', '-map_metadata', '-1'] \
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+ audio_settings \
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+ video_settings
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base = [command('ffmpeg'),
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#'-nostats', '-loglevel', 'error',
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'-y', '-i', video, '-threads', '4', '-map_metadata', '-1', '-sn']
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if format == 'webm':
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cmd += ['-f', 'webm', target]
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post = ['-f', 'webm', target]
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elif format == 'mp4':
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# mp4 needs postprocessing(qt-faststart), write to temp file
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cmd += ["%s.mp4" % target]
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post = ['-movflags', '+faststart', '-f', 'mp4', target]
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else:
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cmd += [target]
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return cmd
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post = [target]
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cmds = []
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if video_settings != ['-vn']:
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pass1_post = post[:]
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pass1_post[-1] = '/dev/null'
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if format == 'webm':
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pass1_post = ['-speed', '4'] + pass1_post
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post = ['-speed', '1'] + post
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cmds.append(base + ['-an', '-pass', '1', '-passlogfile', '%s.log' % target]
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+ video_settings + pass1_post)
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cmds.append(base + ['-pass', '2', '-passlogfile', '%s.log' % target]
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+ audio_settings + video_settings + post)
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else:
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cmds.append(base + audio_settings + video_settings + post)
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if not support.get(format):
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if format == 'webm':
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print("ffmpeg is compiled without WebM support")
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elif format == 'mp4':
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print("ffmpeg is compiled without H.264 support")
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else:
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print('trying to encode in an unsupported format')
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sys.exit(1)
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return cmds
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def video(video, target, profile, info):
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enc_target = target if target.endswith('.mp4') else target + '.tmp.webm'
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cmd = video_cmd(video, enc_target, profile, info)
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enc_target = target + 'tmp.mp4' if target.endswith('.mp4') else target + '.tmp.webm'
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cmds = video_cmd(video, enc_target, profile, info)
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profile, format = profile.split('.')
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# r = run_command(cmd, -1)
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p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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try:
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p.wait()
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r = p.returncode
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if format == 'mp4':
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cmd = [command('qt-faststart'), "%s.mp4" % target, target]
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p = subprocess.Popen(cmd, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE if sys.platform.startswith('win') else open('/dev/null', 'w'),
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stderr=subprocess.STDOUT)
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p.communicate()
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os.unlink("%s.mp4" % target)
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elif r == 0 and target != enc_target:
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shutil.move(enc_target, target)
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print('Input:\t', video)
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print('Output:\t', target)
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except KeyboardInterrupt:
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p.kill()
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r = 1
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if os.path.exists(enc_target):
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print("\n\ncleanup unfinished encoding:\nremoving", enc_target)
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print("\n")
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os.unlink(enc_target)
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if os.path.exists(target):
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print("\n\ncleanup unfinished encoding:\nremoving", target)
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print("\n")
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os.unlink(target)
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if format == 'mp4' and os.path.exists("%s.mp4" % target):
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os.unlink("%s.mp4" % target)
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sys.exit(1)
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for cmd in cmds:
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p = subprocess.Popen(cmd, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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close_fds=True)
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try:
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p.wait()
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r = p.returncode
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print('Input:\t', video)
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print('Output:\t', target)
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except KeyboardInterrupt:
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p.kill()
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r = 1
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if os.path.exists(enc_target):
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print("\n\ncleanup unfinished encoding:\nremoving", enc_target)
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print("\n")
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os.unlink(enc_target)
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if os.path.exists(target):
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print("\n\ncleanup unfinished encoding:\nremoving", target)
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print("\n")
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os.unlink(target)
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if format == 'mp4' and os.path.exists("%s.mp4" % target):
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os.unlink("%s.mp4" % target)
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sys.exit(1)
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if p.returncode != 0:
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if os.path.exists(enc_target):
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os.unlink(enc_target)
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if os.path.exists(target):
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os.unlink(target)
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for f in glob('%s.log*' % enc_target):
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os.unlink(f)
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return False
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else:
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r = 0
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if r == 0 and enc_target != target:
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shutil.move(enc_target, target)
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for f in glob('%s.log*' % enc_target):
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os.unlink(f)
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return r == 0
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