librevideoconverter/lvc/basicconverters.py

import logging

from lvc import converter


class WebM_UHD_VP8(converter.FFmpegConverterInfo1080p):
    media_type = 'format'
    extension = 'webm'
    parameters = ('-f webm -vcodec libvpx -g 120 -lag-in-frames 23 '
                  '-deadline good -cpu-used 0 -vprofile 0 -qmax 51 -qmin 11 '
                  '-slices 4 -b:v 4M -acodec libvorbis -ab 128k '
                  '-map_metadata -1 '
                  '-ar 44100')


class WebM_HD_VP8(converter.FFmpegConverterInfo720p):
    media_type = 'format'
    extension = 'webm'
    parameters = ('-f webm -vcodec libvpx -g 120 -lag-in-frames 16 '
                  '-deadline good -cpu-used 0 -vprofile 0 -qmax 51 -qmin 11 '
                  '-slices 4 -b:v 2M -acodec libvorbis -ab 112k '
                  '-map_metadata -1 '
                  '-ar 44100')


class WebM_SD_VP8(converter.FFmpegConverterInfo480p):
    media_type = 'format'
    extension = 'webm'
    parameters = ('-f webm -vcodec libvpx -g 120 -lag-in-frames 16 '
                  '-deadline good -cpu-used 0 -vprofile 0 -qmax 53 -qmin 0 '
                  '-b:v 768k -acodec libvorbis -ab 112k -map_metadata -1 '
                  '-ar 44100')


class WebM_UHD_VP9(converter.FFmpegConverterInfo1080p):
    media_type = 'format'
    extension = 'webm'
    parameters = ('-f webm -vcodec libvpx-vp9 -g 120 -lag-in-frames 23 '
                  '-deadline good -cpu-used 0 -vprofile 0 -qmax 51 -qmin 11 '
                  '-slices 4 -b:v 4M -acodec libopus -ab 128k '
                  '-map_metadata -1')


class WebM_HD_VP9(converter.FFmpegConverterInfo720p):
    media_type = 'format'
    extension = 'webm'
    parameters = ('-f webm -vcodec libvpx-vp9 -g 120 -lag-in-frames 16 '
                  '-deadline good -cpu-used 0 -vprofile 0 -qmax 51 -qmin 11 '
                  '-slices 4 -b:v 2M -acodec libopus -ab 112k '
                  '-map_metadata -1')


class WebM_SD_VP9(converter.FFmpegConverterInfo480p):
    media_type = 'format'
    extension = 'webm'
    parameters = ('-f webm -vcodec libvpx-vp9 -g 120 -lag-in-frames 16 '
                  '-deadline good -cpu-used 0 -vprofile 0 -qmax 53 -qmin 0 '
                  '-b:v 768k -acodec libopus -ab 112k -map_metadata -1')


class WebM_VP9(converter.FFmpegConverterInfo):
    media_type = 'format'
    extension = 'webm'
    parameters = ('-f webm -vcodec libvpx-vp9 -g 240 -threads 4 '
                  '-quality good -crf 32 '
                  '-b:v 0 -acodec libopus -map_metadata -1')


class WebM_VP8(converter.FFmpegConverterInfo):
    media_type = 'format'
    extension = 'webm'
    parameters = ('-f webm -vcodec libvpx -g 240 -threads 4 '
                  '-quality good -crf 32 '
                  '-b:v 0 -acodec libvorbis -map_metadata -1')


class MP4(converter.FFmpegConverterInfo):
    media_type = 'format'
    extension = 'mp4'
    parameters = ('-acodec aac -ab 128k -vcodec libx264 -preset slow '
                  '-map_metadata -1 '
                  '-f mp4 -crf 22')


class MP3(converter.FFmpegConverterInfo):
    media_type = 'format'
    extension = 'mp3'
    parameters = '-f mp3 -ac 2'
    audio_only = True


class OggVorbis(converter.FFmpegConverterInfo):
    media_type = 'format'
    extension = 'ogg'
    parameters = '-f ogg -vn -acodec libvorbis -aq 60'
    audio_only = True


class OggTheora(converter.FFmpegConverterInfo):
    media_type = 'format'
    extension = 'ogv'
    parameters = ('-f ogg -vcodec libtheora -acodec libvorbis '
                  '-qscale:v 7 -qscale:a 5 -map_metadata -1')


class DNxHD_1080(converter.FFmpegConverterInfo1080p):
    media_type = 'format'
    extension = 'mov'
    parameters = ('-r 23.976 -f mov -vcodec dnxhd -b:v '
                  '175M -acodec pcm_s16be -ar 48000')


class DNxHD_720(converter.FFmpegConverterInfo720p):
    media_type = 'format'
    extension = 'mov'
    parameters = ('-r 23.976 -f mov -vcodec dnxhd -b:v '
                  '175M -acodec pcm_s16be -ar 48000')


class PRORES_720(converter.FFmpegConverterInfo720p):
    media_type = 'format'
    extension = 'mov'
    parameters = ('-f mov -vcodec prores -profile 2 '
                  '-acodec pcm_s16be -ar 48000')


class PRORES_1080(converter.FFmpegConverterInfo1080p):
    media_type = 'format'
    extension = 'mov'
    parameters = ('-f mov -vcodec prores -profile 2 '
                  '-acodec pcm_s16be -ar 48000')


class AVC_INTRA_1080(converter.FFmpegConverterInfo1080p):
    media_type = 'format'
    extension = 'mov'
    parameters = ('-f mov  -vcodec libx264 -pix_fmt yuv422p '
                  '-crf 0 -intra -b:v 100M -acodec pcm_s16be -ar 48000')


class AVC_INTRA_720(converter.FFmpegConverterInfo720p):
    media_type = 'format'
    extension = 'mov'
    parameters = ('-f mov  -vcodec libx264 -pix_fmt yuv422p '
                  '-crf 0 -intra -b:v 100M -acodec pcm_s16be -ar 48000')


class NullConverter(converter.FFmpegConverterInfo):
    media_type = 'format'
    extension = None

    def get_parameters(self, video):
        params = []
        if not video.audio_only and self.should_copy_video_size(video):
            # -vcodec copy copies the video data exactly.  Only use it if the
            # output video is the same size as the input video (#19664)
            params.extend(['-vcodec', 'copy'])
            params.extend(['-acodec', 'copy'])
            return params

    def should_copy_video_size(self, video):
        if self.width is None or self.height is None:
            return True
        return (video.width == self.width and video.height == self.height)

    def get_extra_arguments(self, video, output):
        if not video.container:
            logging.warn("sameformat: video.container is None. Using mp4")
            container = 'mp4'
        elif isinstance(video.container, list):
            # XXX: special case mov,mp4,m4a,3gp,3g2,mj2
            container = 'mp4'
        else:
            container = video.container
        return ['-f', container]


mp3 = MP3('MP3')
ogg_vorbis = OggVorbis('Ogg Vorbis')
audio_formats = ('Audio', [mp3, ogg_vorbis])

webm_uhd_vp8 = WebM_UHD_VP8('WebM 1080p VP8')
webm_hd_vp8 = WebM_HD_VP8('WebM 720p VP8')
webm_sd_vp8 = WebM_SD_VP8('WebM 480p VP8')
webm_vp8 = WebM_VP8('WebM VP8')

webm_uhd_vp9 = WebM_UHD_VP9('WebM 1080p VP9')
webm_hd_vp9 = WebM_HD_VP9('WebM 720p VP9')
webm_sd_vp9 = WebM_SD_VP9('WebM 480p VP9')
webm_vp9 = WebM_VP9('WebM VP9')

mp4 = MP4('MP4')
theora = OggTheora('Ogg Theora')

video_formats = ('Video',
                 [
                     webm_uhd_vp8,
                     webm_hd_vp8,
                     webm_sd_vp8,
                     webm_vp8,
                     webm_uhd_vp9,
                     webm_hd_vp9,
                     webm_sd_vp9,
                     webm_vp9,
                     mp4,
                     theora
                 ])

dnxhd_1080 = DNxHD_1080('DNxHD 1080p')
dnxhd_720 = DNxHD_720('DNxHD 720p')
prores_1080 = PRORES_1080('Prores Ingest 1080p')
prores_720 = PRORES_720('Prores Ingest 720p')
avc_intra_1080 = PRORES_1080('AVC Intra 1080p')
avc_intra_720 = PRORES_720('AVC Intra 720p')

ingest_formats = ('Ingest Formats', [dnxhd_1080, dnxhd_720, prores_1080,
                                     prores_720, avc_intra_1080,
                                     avc_intra_720])
null_converter = NullConverter('Same Format')

converters = [video_formats, audio_formats, ingest_formats, null_converter]