330 lines
12 KiB
Python
Executable file
330 lines
12 KiB
Python
Executable file
#! /bin/env python3
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# encoding: utf-8
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import json
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import os
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import over
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import pathlib
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import re
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import subprocess
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import tempfile
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import time
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from aux import Command, parse_fps, to_Path
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from version import _version
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# --------------------------------------------------
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prefix = over.core.textui.prefix
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_print = over.core.textui.Output('over.video')
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# --------------------------------------------------
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# see doc/command_assembler.png
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command = over.core.types.ndict()
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command.identify = Command('ffprobe', '-v', 'quiet', '-print_format', 'json', '-show_format', '-show_streams', 'INFILE')
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command.normalize_prepass = Command('ffmpeg', '-i', 'INFILE', '-af', 'volumedetect', '-f', 'null', '/dev/null')
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command.encode_generic = Command('ffmpeg', '-i', 'INFILE', 'VIDEO', 'AUDIO', 'OUTFILE')
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command.sub_vorbis = Command('-codec:a', 'libvorbis', '-qscale:a', 'QUALITY', 'NORMALIZE')
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command.sub_pcm = Command('-codec:a', 'pcm_s16le', 'NORMALIZE')
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command.sub_theora = Command('-codec:v', 'libtheora', '-qscale:v', 'QUALITY', 'VFILTER')
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command.sub_x264 = Command('-codec:v', 'libx264', '-preset', 'slow', '-crf', 'QUALITY', '-profile:v', 'high', '-level', '4.2', 'VFILTER')
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command.sub_normalize = Command('-filter:a', 'VOLUME')
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command.sub_vfilter = Command('-filter:v', 'ARGS')
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# --------------------------------------------------
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if __name__ == '__main__':
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main = over.core.app.Main('Over-Video', '%d (%s)' %_version, 'AWARE-Overwatch Joint Software License', '~/.over/video.cfg')
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main.add_option('audio', 'str', 'vorbis', 'Audio codec to use, either §mvorbis§/, §mpcm§/, §mcopy§/ or §mdrop§/.', short_name='a')
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main.add_option('audio-quality', 'float', 2, 'Audio encoding quality with -1 being the worst and 10 being the best.', short_name='q')
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main.add_option('video', 'str', 'x264', 'Video codec to use, either §mx264§/, §mtheora§/, §mcopy§/ or §mdrop§/.', short_name='v')
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main.add_option('video-quality', 'float', 22, 'Video encoding quality. Use 0-10 for Theora (0 being the lowest, 5-7 is generally watchable) and 0-51 for x264 (0 being lossless, 18-28 is reasonable).', short_name='Q')
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main.add_option('normalize', 'bool', True, 'Normalize the audio track.', short_name='n')
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main.add_option('normalize-target', 'float', -20.0, 'Target mean volume to target.', short_name='N')
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main.add_option('ffmpeg-vfilter', 'str', '', 'Raw ffmpeg -filter:v options, e.g. "scale=1280:-1"', short_name='f')
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main.add_option('move-source', 'str', '', 'Move source file to this directory after conversion.', short_name='m')
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main.add_option('dump-commands', 'bool', False, 'Print ffmpeg commands that would be executed. If §B--§gnormalize§/ is in effect, the normalization pre-pass will still be performed so that the proper volume correction can be computed.', short_name='D')
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main.add_option('armed', 'bool', False, 'Perform the suggested action.', short_name='A', use_cfg_file=False)
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main.enable_help('h')
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main.add_help('Description', ['Over-Video is a simple video converter.'])
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main.parse()
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# --------------------------------------------------
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# cfg checks
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files = over.core.types.ndict()
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audio_words = []
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video_words = []
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files.container = 'mkv'
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if main.cfg.audio in ('copy', 'drop'):
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audio_words.append('§c%s§/' %(main.cfg.audio))
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else:
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audio_words.append('§gcodec§/=§m%s§/' %(main.cfg.audio))
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if main.cfg.audio == 'vorbis':
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audio_words.append('§gquality§/=§m%.1f§/' %(main.cfg.audio_quality))
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if main.cfg.normalize:
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audio_words.append('§gnormalize§/=§m%.1f dB§/' %(main.cfg.normalize_target))
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if main.cfg.video in ('copy', 'drop'):
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video_words.append('§c%s§/' %(main.cfg.video))
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else:
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video_words.append('§gcodec§/=§m%s§/' %(main.cfg.video))
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video_words.append('§gquality§/=§m%.1f§/' %(main.cfg.video_quality))
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if main.cfg.ffmpeg_vfilter:
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video_words.append('§gvfilter§/=§m%s§/' %(main.cfg.ffmpeg_vfilter))
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if main.cfg.video == 'drop':
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if main.cfg.audio == 'pcm':
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files.container = 'wav'
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elif main.cfg.audio == 'vorbis':
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files.container = 'ogg'
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_print('input parameters:', prefix.start)
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_print('audio: %s' %(', '.join(audio_words)))
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_print('video: %s' %(', '.join(video_words)))
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_print('container: §gtype§/=§m%s§/' %(files.container))
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if main.cfg.audio not in ('drop', 'copy', 'pcm', 'vorbis'):
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_print('unknown audio codec', prefix.fail)
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raise RuntimeError
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if main.cfg.video not in ('drop', 'copy', 'theora', 'x264'):
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_print('unknown video codec', prefix.fail)
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raise RuntimeError
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if not main.targets:
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_print('no files specified', prefix.warn)
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for tgt in main.targets:
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print()
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if not os.path.exists(tgt) or os.path.isdir(tgt):
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_print('target §y%s§/ §ris not a readable file§/, skipping' %(tgt), prefix.fail)
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continue
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_print('processing §B%s§/' %(tgt), prefix.start)
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# --------------------------------------------------
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# identify the input file
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command.identify.reset()
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command.identify.INFILE = tgt
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command.identify.run()
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identify_raw = command.identify.get_all_output()
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identify_dict = json.loads(identify_raw.decode('utf-8'))
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info = over.core.types.ndict()
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try:
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info.duration = float(identify_dict['format']['duration'])
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video_streams = [s for s in identify_dict['streams'] if s['codec_type'] == 'video']
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audio_streams = [s for s in identify_dict['streams'] if s['codec_type'] == 'audio']
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amount_vs = len(video_streams)
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amount_as = len(audio_streams)
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if amount_vs != 1:
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_print('detected §r%d§/ video streams' %(amount_vs), prefix.fail)
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main.exit(1)
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if amount_as != 1:
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_print('detected §r%d§/ audio streams' %(amount_as), prefix.fail)
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main.exit(1)
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video = video_streams[0]
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audio = audio_streams[0]
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info.video_codec = video['codec_name']
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info.video_size_x = video['width']
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info.video_size_y = video['height']
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info.video_fps = over.core.textui.Unit(parse_fps(video['r_frame_rate']), 'Hz')
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info.video_bitrate = over.core.textui.Unit(video['bit_rate'], 'b/s') if 'bit_rate' in video else '§r??§/'
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info.audio_codec = audio['codec_name']
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info.audio_channels = audio['channels']
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info.audio_samplerate = over.core.textui.Unit(audio['sample_rate'], 'Hz')
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info.audio_language = audio['tags']['language'] if 'tags' in audio and 'language' in audio['tags'] else 'und'
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info.audio_bitrate = over.core.textui.Unit(audio['bit_rate'], 'b/s') if 'bit_rate' in audio else '§r??§/'
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except KeyError:
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_print('KeyError while reading identify_dict, dump follows', prefix.fail)
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print(identify_dict)
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raise
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# TODO wordify :-)
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_print('§mvideo§/: size=§b%d§/x§b%d§/ px, framerate=%s, codec=%s, bitrate=%s' %(info.video_size_x, info.video_size_y, info.video_fps, info.video_codec, info.video_bitrate))
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_print('§caudio§/: channels=§b%d§/, samplerate=%s, codec=%s, bitrate=%s, language=%s' %(info.audio_channels, info.audio_samplerate, info.audio_codec, info.audio_bitrate, info.audio_language))
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# --------------------------------------------------
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# normalization pre-pass
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if (main.cfg.armed or main.cfg.dump_commands) and main.cfg.normalize:
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_print('running normalization pre-pass')
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command.normalize_prepass.reset()
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command.normalize_prepass.INFILE = tgt
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command.normalize_prepass.run(stderr=True)
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pb = over.core.textui.ProgressBar(60, int(info.video_fps.value * info.duration), 'frames')
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output_buffer = []
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while True:
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time.sleep(.25)
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out = command.normalize_prepass.get_output()
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if out:
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output_buffer.append(out)
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if b'frame=' in out:
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frame_id = re.findall(b'frame= *(\d+) ', out)[0]
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pb.update(int(frame_id))
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elif out is None:
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break
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output = b''.join(output_buffer)
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if b'mean_volume: ' in output:
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info.mean_volume = float(re.findall(b'mean_volume: (-\d+\.\d+) dB', output)[0])
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info.volume_correction = main.cfg.normalize_target - info.mean_volume
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else:
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_print('§runexpected ffmpeg output§/, dump follows', prefix.fail, suffix=':\n')
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print(output)
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raise RuntimeError
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pb.blank()
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_print('detected volume %.1f dB, correction %.1f dB' %(info.mean_volume, info.volume_correction))
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info.normalize_command = command.sub_normalize
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info.normalize_command.reset()
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info.normalize_command.VOLUME = 'volume=%.2fdB' %(info.volume_correction)
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else:
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info.normalize_command = None
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# --------------------------------------------------
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# main command assembly
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files.infile = to_Path(tgt)
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files.tmpfile = to_Path(tempfile.mktemp(suffix='.' + files.container, dir='.'))
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files.outfile = files.infile.parent / (str(files.infile.stem) + '.' + files.container)
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files.move_infile_to = to_Path(main.cfg.move_source) / files.infile.name if main.cfg.move_source else None
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encode_cmd = command.encode_generic
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encode_cmd.reset()
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encode_cmd.INFILE = files.infile
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encode_cmd.OUTFILE = files.tmpfile
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if main.cfg.audio == 'copy':
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encode_cmd.AUDIO = None
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elif main.cfg.audio == 'drop':
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encode_cmd.AUDIO = '-an'
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elif main.cfg.audio == 'pcm':
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command.sub_pcm.reset()
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command.sub_pcm.NORMALIZE = info.normalize_command
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encode_cmd.AUDIO = command.sub_pcm
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elif main.cfg.audio == 'vorbis':
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command.sub_vorbis.reset()
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command.sub_vorbis.QUALITY = main.cfg.audio_quality
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command.sub_vorbis.NORMALIZE = info.normalize_command
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encode_cmd.AUDIO = command.sub_vorbis
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if main.cfg.ffmpeg_vfilter:
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info.vfilter_command = command.sub_vfilter
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info.vfilter_command.reset()
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info.vfilter_command.ARGS = main.cfg.ffmpeg_vfilter
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else:
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info.vfilter_command = None
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if main.cfg.video == 'copy':
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encode_cmd.VIDEO = None
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elif main.cfg.video == 'drop':
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encode_cmd.VIDEO = '-vn'
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elif main.cfg.video == 'theora':
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command.sub_theora.reset()
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command.sub_theora.QUALITY = main.cfg.video_quality
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command.sub_theora.VFILTER = info.vfilter_command
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encode_cmd.VIDEO = command.sub_theora
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elif main.cfg.video == 'x264':
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command.sub_x264.reset()
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command.sub_x264.QUALITY = main.cfg.video_quality
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command.sub_x264.VFILTER = info.vfilter_command
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encode_cmd.VIDEO = command.sub_x264
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# --------------------------------------------------
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# run the command if armed
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if main.cfg.dump_commands or main.cfg.armed:
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cmd = ' '.join(encode_cmd.dump())
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if main.cfg.armed:
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_print('executing §B%s§/' %(cmd), prefix.start)
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else:
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_print('will execute §B%s§/' %(cmd))
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else:
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_print('will encode into §B%s§/' %(files.tmpfile))
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if main.cfg.armed:
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pb = over.core.textui.ProgressBar(60, int(info.video_fps.value * info.duration), 'frames')
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encode_cmd.run(stderr=True)
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while True:
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time.sleep(.25)
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out = encode_cmd.get_output()
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if out:
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if b'frame=' in out:
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frame_id = re.findall(b'frame= *(\d+) ', out)[0]
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pb.update(int(frame_id))
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elif out is None:
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break
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original_filesize = over.core.textui.Unit(files.infile.stat().st_size, 'B')
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new_filesize = over.core.textui.Unit(files.tmpfile.stat().st_size, 'B')
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pb.blank()
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_print('encoding finished: %s -> %s' %(original_filesize, new_filesize), prefix.done)
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# --------------------------------------------------
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# shuffle files around
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if main.cfg.move_source:
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move_to_dir = pathlib.Path(main.cfg.move_source)
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if not move_to_dir.is_dir():
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if main.cfg.armed:
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_print('creating directory §B%s§/' %(move_to_dir), prefix.start)
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move_to_dir.mkdir()
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else:
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_print('will create directory §B%s§/' %(move_to_dir))
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if files.move_infile_to:
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if main.cfg.armed:
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_print('moving §B%s§/ -> §B%s§/' %(files.infile, files.move_infile_to), prefix.start)
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files.infile.rename(files.move_infile_to)
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else:
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_print('will move §B%s§/ -> §B%s§/' %(files.infile, files.move_infile_to))
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if main.cfg.armed:
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_print('moving §B%s§/ -> §B%s§/' %(files.tmpfile, files.outfile), prefix.start)
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files.tmpfile.rename(files.outfile)
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else:
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_print('will move §B%s§/ -> §B%s§/' %(files.tmpfile, files.outfile))
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