Source code for media_nommer_api.presets.video_basic

"""
The following presets are basic video encoding presets. Right now, this is
just ffmpeg, but may be expanded in the future with the addition of Nommers.
"""

def web_medium():
    """
    This preset is suitable for medium-quality encodings for web consumption.
    The two-pass encoding yields a smaller size, and we use qtfaststart.py to
    move the meta-data to the front for faster buffering.
    """
    return {
        'nommer': 'media_nommer.ec2nommerd.nommers.ffmpeg.FFmpegNommer',
        'options': [
            {
                'outfile_options': [
                    ('vcodec', 'libx264'),
                    ('preset', 'medium'),
                    ('vprofile', 'baseline'),
                    ('b', '400k'),
                    ('vf', "yadif,scale='640:trunc(ow/a/2)*2'"),
                    ('pass', '1'),
                    ('f', 'mp4'),
                    ('an', None),
                ],
            },
            {
                'outfile_options': [
                    ('vcodec', 'libx264'),
                    ('preset', 'medium'),
                    ('vprofile', 'baseline'),
                    ('b', '400k'),
                    ('vf', "yadif,scale='640:trunc(ow/a/2)*2'"),
                    ('pass', '2'),
                    ('acodec', 'libfaac'),
                    ('ab', '128k'),
                    ('ar', '48000'),
                    ('async', '480'),
                    ('ac', '2'),
                    ('f', 'mp4'),
                ],
                'move_atom_to_front': True,
            },
        ],
    }