forked from 0x2620/pandora
Add VP9/Opus support, use VP8 by default
- support vp9 and opus - switch to 2 pass encoding - use ffmpeg -movflags +faststart instead of qtfaststart
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parent
aaacc48259
commit
4785f314cb
3 changed files with 94 additions and 53 deletions
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@ -142,6 +142,7 @@ def load_config(init=False):
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formats = config.get('video', {}).get('formats')
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if set(old_formats) != set(formats):
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sformats = supported_formats()
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settings.FFMPEG_SUPPORTS_VP9 = 'vp9' in sformats
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if sformats:
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for f in formats:
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if f not in sformats or not sformats[f]:
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@ -57,7 +57,10 @@ def supported_formats():
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return {
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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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'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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@ -78,6 +81,8 @@ def stream(video, target, profile, info, audio_track=0, flags={}):
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'''
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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 'error' in info:
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return False, "Unsupported Format"
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@ -140,11 +145,25 @@ def stream(video, target, profile, info, audio_track=0, flags={}):
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else:
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height = 96
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if settings.FFMPEG_SUPPORTS_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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@ -197,11 +216,17 @@ def stream(video, target, profile, info, audio_track=0, flags={}):
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]
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if format == 'webm':
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video_settings += [
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'-c:v', video_codec,
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'-deadline', 'good',
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'-cpu-used', '0',
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'-lag-in-frames', '16',
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'-cpu-used', '1' if video_codec == 'libvpx-vp9' else '0',
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'-lag-in-frames', '25',
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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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video_settings += [
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'-c:v', 'libx264',
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@ -232,7 +257,9 @@ def stream(video, target, profile, info, audio_track=0, flags={}):
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else:
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video_settings += ['-map', '0:%s,0:%s' % (info['audio'][audio_track]['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 = ['-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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@ -246,31 +273,49 @@ def stream(video, target, profile, info, audio_track=0, flags={}):
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audio_settings += ['-ab', audiobitrate]
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if format == 'mp4':
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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 += ['-c:a', '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 = [settings.FFMPEG,
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cmds = []
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base = [settings.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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+ audio_settings \
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+ video_settings
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'-y', '-i', video, '-threads', '4', '-map_metadata', '-1', '-sn']
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if format == 'webm':
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enc_target = target + '.tmp.webm'
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elif format == 'mp4':
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enc_target = target + '.tmp.mp4'
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else:
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enc_target = target
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if format == 'webm':
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cmd += ['-f', 'webm', enc_target]
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post = ['-f', 'webm', enc_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" % enc_target]
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post = ['-movflags', '+faststart', '-f', 'mp4', enc_target]
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else:
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cmd += [enc_target]
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post = [target]
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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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# print(cmd)
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# print(cmds)
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n = 0
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for cmd in cmds:
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n += 1
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p = subprocess.Popen(cmd, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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@ -278,23 +323,13 @@ def stream(video, target, profile, info, audio_track=0, flags={}):
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stdout, stderr = p.communicate()
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if p.returncode != 0:
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t = "%s.mp4" % enc_target if format == 'mp4' else enc_target
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if os.path.exists(t):
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os.unlink(t)
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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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stdout = stdout.replace('\r\n', '\n').replace('\r', '\n')
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return False, stdout
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if format == 'mp4':
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cmd = ['qt-faststart', "%s.mp4" % enc_target, enc_target]
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# print(cmd)
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p = subprocess.Popen(cmd, stdin=subprocess.PIPE,
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stdout=open('/dev/null', 'w'),
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stderr=subprocess.STDOUT,
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close_fds=True)
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p.communicate()
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os.unlink("%s.mp4" % enc_target)
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elif format == 'webm' and audio_only:
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if format == 'webm' and audio_only:
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cmd = ['mkvmerge', '-w', '-o', target, '--cues', '-1:all', enc_target]
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p = subprocess.Popen(cmd, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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@ -305,6 +340,8 @@ def stream(video, target, profile, info, audio_track=0, flags={}):
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enc_target = target
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if p.returncode == 0 and enc_target != target:
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shutil.move(enc_target, target)
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for f in glob('%s.log*' % target):
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os.unlink(f)
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return True, None
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@ -358,7 +395,8 @@ def ffmpeg_frame_cmd(video, frame, position, height=128):
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def ffmpeg_version():
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p = subprocess.Popen([settings.FFMPEG],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE, close_fds=True)
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stdout, stderr = p.communicate()
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version = stderr.split(' ')[2].split('-')[0]
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try:
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@ -414,16 +452,17 @@ def timeline(video, prefix, modes=None, size=None):
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size = [64, 16]
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if isinstance(video, basestring):
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video = [video]
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cmd = [
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os.path.join(settings.PROJECT_ROOT, '../bin/oxtimelines'),
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cmd = ['../bin/oxtimelines',
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'-s', ','.join(map(str, reversed(sorted(size)))),
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'-m', ','.join(modes),
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'-o', prefix,
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'-c', os.path.join(prefix, 'cuts.json'),
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] + video
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# print(cmd)
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p = subprocess.Popen(cmd, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE,
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close_fds=True)
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# print(cmd)
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# p = subprocess.Popen(cmd)
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p.wait()
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@ -437,8 +476,8 @@ def average_color(prefix, start=0, end=0, mode='antialias'):
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start = int(start * 25)
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end = int(end * 25)
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mode = 'timeline' + mode
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timelines = ox.sorted_strings(filter(lambda t: t!= '%s%s%sp.jpg'%(prefix, mode, height),
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glob("%s%s%sp*.jpg"%(prefix, mode, height))))
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timelines = ox.sorted_strings(filter(lambda t: t != '%s%s%sp.jpg' % (prefix, mode, height),
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glob("%s%s%sp*.jpg" % (prefix, mode, height))))
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for image in timelines:
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start_offset = 0
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if start and frames + 1500 <= start:
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@ -526,7 +565,7 @@ def timeline_strip(item, cuts, info, prefix):
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timeline_image = Image.new('RGB', (timeline_width, timeline_height))
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if frame in cuts:
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c = cuts.index(frame)
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if c +1 < len(cuts):
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if c + 1 < len(cuts):
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duration = cuts[c + 1] - cuts[c]
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frames = math.ceil(duration / (video_width * timeline_height / video_height))
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widths = divide(duration, frames)
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@ -545,7 +584,7 @@ def timeline_strip(item, cuts, info, prefix):
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box = (0, top, video_width, top + height)
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if _debug:
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print(frame, 'cut', c, 'frame', s, frame, 'width', widths[s], box)
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#FIXME: why does this have to be frame+1?
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# FIXME: why does this have to be frame+1?
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frame_image = Image.open(item.frame((frame+1)/fps))
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frame_image = frame_image.crop(box).resize((widths[s], timeline_height), Image.ANTIALIAS)
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for x_ in range(widths[s]):
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@ -569,8 +608,8 @@ def chop(video, start, end):
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settings.FFMPEG,
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'-y',
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'-i', video,
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'-ss', '%.3f'%start,
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'-t', '%.3f'%t,
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'-ss', '%.3f' % start,
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'-t', '%.3f' % t,
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'-c:v', 'copy',
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'-c:a', 'copy',
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'-f', ext[1:],
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@ -165,6 +165,7 @@ LOGGING = {
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AUTH_PROFILE_MODULE = 'user.UserProfile'
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AUTH_CHECK_USERNAME = True
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FFMPEG = 'ffmpeg'
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FFMPEG_SUPPORTS_VP9 = True
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#=========================================================================
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#Pan.do/ra related settings settings
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