MKVMerge Output

mkvmerge --ui-language en --identify-verbose Test.mkv

File 'Test.mkv':

container: Matroska [
	duration:5945731000000
	segment_uid:9288a042b3c5941589fd731e53fbbb07
	is_providing_timecodes:1
]
Track ID 0: video (V_MPEG4/ISO/AVC) [
	number:1
	uid:1
	codec_id:V_MPEG4/ISO/AVC
	codec_private_length:43
	codec_private_data:<long_alphanumeric_string>
	language:und
	pixel_dimensions:1280x720
	display_dimensions:1280x720
	default_track:0
	forced_track:0
	enabled_track:1
	packetizer:mpeg4_p10_video
	default_duration:41708331
]
Track ID 1: audio (A_AC3) [
	number:2
	uid:2030907561
	codec_id:A_AC3
	codec_private_length:0
	language:und
	default_track:1
	forced_track:0
	enabled_track:1
	default_duration:32000000
	audio_sampling_frequency:48000
	audio_channels:2
]
Track ID 2: subtitles (S_VOBSUB) [
	number:3
	uid:1484785837
	codec_id:S_VOBSUB
	codec_private_length:347
	codec_private_data:<long_alphanumeric_string>
	language:und
	default_track:1
	forced_track:0
	enabled_track:1
	content_encoding_algorithms:0
]
Track ID 3: subtitles (S_TEXT/UTF8) [
	number:4
	uid:8603938660284555696
	codec_id:S_TEXT/UTF8
	codec_private_length:0
	language:und
	default_track:0
	forced_track:0
	enabled_track:1
]