moviepy.video.io.ffmpeg_reader.FFmpegInfosParser

class moviepy.video.io.ffmpeg_reader.FFmpegInfosParser(infos, filename, fps_source='fps', check_duration=True, decode_file=False)

Finite state ffmpeg -i command option file information parser. Is designed to parse the output fast, in one loop. Iterates line by line of the ffmpeg -i <filename> [-f null -] command output changing the internal state of the parser.

Parameters:

• filename -- Name of the file parsed, only used to raise accurate error messages.

• infos -- Information returned by FFmpeg.

• fps_source -- Indicates what source data will be preferably used to retrieve fps data.

• check_duration -- Enable or disable the parsing of the duration of the file. Useful to skip the duration check, for example, for images.

• decode_file -- Indicates if the whole file has been decoded. The duration parsing strategy will differ depending on this argument.

parse()

Parses the information returned by FFmpeg in stderr executing their binary for a file with -i option and returns a dictionary with all data needed by MoviePy.

parse_audio_stream_data(line)

Parses data from "Stream ... Audio" line.

parse_data_by_stream_type(stream_type, line)

Parses data from "Stream ... {stream_type}" line.

parse_duration(line)

Parse the duration from the line that outputs the duration of the container.

parse_fps(line)

Parses number of FPS from a line of the ffmpeg -i command output.

parse_metadata_field_value(line)

Returns a tuple with a metadata field-value pair given a ffmpeg -i command output line.

parse_tbr(line)

Parses number of TBS from a line of the ffmpeg -i command output.

parse_video_stream_data(line)

Parses data from "Stream ... Video" line.

video_metadata_type_casting(field, value)

Cast needed video metadata fields to other types than the default str.