- container: possible values are listed in containers member as keys
- a_codec: possible values are listed in a_codecs member as keys
- v_codec: possible values are listed in v_codecs member as keys
- a_bitrate: (numeric) audio bit rate
- a_samplingrate: (numeric) audio sampling rate in Hz
- a_channels: (numeric) number of audio channels
- v_bitrate: (numeric) video bit rate
- v_framerate: (numeric) number of frames per second for a video
- v_resolution: (string) video image size as <width>x<height>
- v_dar: video display aspect ratio as <den>x<num> or float
+ @param container: possible values are listed in containers member
+ as keys
+ @param a_codec possible values are listed in a_codecs member as keys
+ @param v_codec possible values are listed in v_codecs member as keys
+ @param a_bitrate (numeric) audio bit rate
+ @param a_samplingrate (numeric) audio sampling rate in Hz
+ @param a_channels (numeric) number of audio channels
+ @param v_bitrate (numeric) video bit rate
+ @param v_framerate (numeric) number of frames per second for a video
+ @param v_resolution (string) video image size as <width>x<height>
+ @param v_dar video display aspect ratio as <den>x<num> or float
+ @return output file name