# ffmpeg -f lavfi -i sine -strict experimental -c:a opus -t 50ms opus.mp4 $ fq -d mp4 verbose /opus.mp4 |00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.: {} /opus.mp4 (mp4) 0x0-0x438.7 (1081) | | | boxes: [4] 0x0-0x438.7 (1081) | | | [0]: box {} 0x0-0x1b.7 (28) 0x000|00 00 00 1c |.... | size: 28 0x0-0x3.7 (4) 0x000| 66 74 79 70 | ftyp | type: "ftyp" (File type and compatibility) 0x4-0x7.7 (4) 0x000| 69 73 6f 6d | isom | major_brand: "isom" 0x8-0xb.7 (4) 0x000| 00 00 02 00| ....| minor_version: 512 0xc-0xf.7 (4) | | | brands: [3] 0x10-0x1b.7 (12) 0x010|69 73 6f 6d |isom | [0]: brand "isom" (All files based on the ISO Base Media File Format) 0x10-0x13.7 (4) 0x010| 69 73 6f 32 | iso2 | [1]: brand "iso2" (All files based on the 2004 edition of the ISO file format) 0x14-0x17.7 (4) 0x010| 6d 70 34 31 | mp41 | [2]: brand "mp41" (MP4 version 1) 0x18-0x1b.7 (4) | | | [1]: box {} 0x1c-0x23.7 (8) 0x010| 00 00 00 08| ....| size: 8 0x1c-0x1f.7 (4) 0x020|66 72 65 65 |free | type: "free" (Free space) 0x20-0x23.7 (4) | | | data: 0x24-NA (0) | | | [2]: box {} 0x24-0x196.7 (371) 0x020| 00 00 01 73 | ...s | size: 371 0x24-0x27.7 (4) 0x020| 6d 64 61 74 | mdat | type: "mdat" (Media data container) 0x28-0x2b.7 (4) 0x020| f8 22 28 75| ."(u| data: f822287568a8dd59431bff52f316f148... 0x2c-0x196.7 (363) 0x030|68 a8 dd 59 43 1b ff 52 f3 16 f1 48 28 77 86 10|h..YC..R...H(w..| * |until 0x196.7 (363) | | | | | [3]: box {} 0x197-0x438.7 (674) 0x190| 00 00 02 a2 | .... | size: 674 0x197-0x19a.7 (4) 0x190| 6d 6f 6f 76 | moov | type: "moov" (Container for all the meta-data) 0x19b-0x19e.7 (4) | | | boxes: [3] 0x19f-0x438.7 (666) | | | [0]: box {} 0x19f-0x20a.7 (108) 0x190| 00| .| size: 108 0x19f-0x1a2.7 (4) 0x1a0|00 00 6c |..l | 0x1a0| 6d 76 68 64 | mvhd | type: "mvhd" (Movie header, overall declarations) 0x1a3-0x1a6.7 (4) 0x1a0| 00 | . | version: 0 0x1a7-0x1a7.7 (1) 0x1a0| 00 00 00 | ... | flags: 0 0x1a8-0x1aa.7 (3) 0x1a0| 00 00 00 00 | .... | creation_time: 1904-01-04T00:00:00Z (0) 0x1ab-0x1ae.7 (4) 0x1a0| 00| .| modification_time: 1904-01-04T00:00:00Z (0) 0x1af-0x1b2.7 (4) 0x1b0|00 00 00 |... | 0x1b0| 00 00 03 e8 | .... | time_scale: 1000 0x1b3-0x1b6.7 (4) 0x1b0| 00 00 00 35 | ...5 | duration: 53 0x1b7-0x1ba.7 (4) 0x1b0| 00 01 00 00 | .... | preferred_rate: 1 0x1bb-0x1be.7 (4) 0x1b0| 01| .| preferred_volume: 1 0x1bf-0x1c0.7 (2) 0x1c0|00 |. | 0x1c0| 00 00 00 00 00 00 00 00 00 00 | .......... | reserved: "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" 0x1c1-0x1ca.7 (10) | | | matrix_structure: {} 0x1cb-0x1ee.7 (36) 0x1c0| 00 01 00 00 | .... | a: 1 0x1cb-0x1ce.7 (4) 0x1c0| 00| .| b: 0 0x1cf-0x1d2.7 (4) 0x1d0|00 00 00 |... | 0x1d0| 00 00 00 00 | .... | u: 0 0x1d3-0x1d6.7 (4) 0x1d0| 00 00 00 00 | .... | c: 0 0x1d7-0x1da.7 (4) 0x1d0| 00 01 00 00 | .... | d: 1 0x1db-0x1de.7 (4) 0x1d0| 00| .| v: 0 0x1df-0x1e2.7 (4) 0x1e0|00 00 00 |... | 0x1e0| 00 00 00 00 | .... | x: 0 0x1e3-0x1e6.7 (4) 0x1e0| 00 00 00 00 | .... | y: 0 0x1e7-0x1ea.7 (4) 0x1e0| 40 00 00 00 | @... | w: 1 0x1eb-0x1ee.7 (4) 0x1e0| 00| .| preview_time: 0 0x1ef-0x1f2.7 (4) 0x1f0|00 00 00 |... | 0x1f0| 00 00 00 00 | .... | preview_duration: 0 0x1f3-0x1f6.7 (4) 0x1f0| 00 00 00 00 | .... | poster_time: 0 0x1f7-0x1fa.7 (4) 0x1f0| 00 00 00 00 | .... | selection_time: 0 0x1fb-0x1fe.7 (4) 0x1f0| 00| .| selection_duration: 0 0x1ff-0x202.7 (4) 0x200|00 00 00 |... | 0x200| 00 00 00 00 | .... | current_time: 0 0x203-0x206.7 (4) 0x200| 00 00 00 02 | .... | next_track_id: 2 0x207-0x20a.7 (4) | | | [1]: box {} 0x20b-0x3d6.7 (460) 0x200| 00 00 01 cc | .... | size: 460 0x20b-0x20e.7 (4) 0x200| 74| t| type: "trak" (Container for an individual track or stream) 0x20f-0x212.7 (4) 0x210|72 61 6b |rak | | | | boxes: [3] 0x213-0x3d6.7 (452) | | | [0]: box {} 0x213-0x26e.7 (92) 0x210| 00 00 00 5c | ...\ | size: 92 0x213-0x216.7 (4) 0x210| 74 6b 68 64 | tkhd | type: "tkhd" (Track header, overall information about the track) 0x217-0x21a.7 (4) 0x210| 00 | . | version: 0 0x21b-0x21b.7 (1) 0x210| 00 00 03 | ... | flags: 3 0x21c-0x21e.7 (3) 0x210| 00| .| creation_time: 1904-01-04T00:00:00Z (0) 0x21f-0x222.7 (4) 0x220|00 00 00 |... | 0x220| 00 00 00 00 | .... | modification_time: 1904-01-04T00:00:00Z (0) 0x223-0x226.7 (4) 0x220| 00 00 00 01 | .... | track_id: 1 0x227-0x22a.7 (4) 0x220| 00 00 00 00 | .... | reserved1: 0 0x22b-0x22e.7 (4) 0x220| 00| .| duration: 53 0x22f-0x232.7 (4) 0x230|00 00 35 |..5 | 0x230| 00 00 00 00 00 00 00 00 | ........ | reserved2: 0000000000000000 0x233-0x23a.7 (8) 0x230| 00 00 | .. | layer: 0 0x23b-0x23c.7 (2) 0x230| 00 01 | .. | alternate_group: 1 0x23d-0x23e.7 (2) 0x230| 01| .| volume: 1 0x23f-0x240.7 (2) 0x240|00 |. | 0x240| 00 00 | .. | reserved3: 0 0x241-0x242.7 (2) | | | matrix_structure: {} 0x243-0x266.7 (36) 0x240| 00 01 00 00 | .... | a: 1 0x243-0x246.7 (4) 0x240| 00 00 00 00 | .... | b: 0 0x247-0x24a.7 (4) 0x240| 00 00 00 00 | .... | u: 0 0x24b-0x24e.7 (4) 0x240| 00| .| c: 0 0x24f-0x252.7 (4) 0x250|00 00 00 |... | 0x250| 00 01 00 00 | .... | d: 1 0x253-0x256.7 (4) 0x250| 00 00 00 00 | .... | v: 0 0x257-0x25a.7 (4) 0x250| 00 00 00 00 | .... | x: 0 0x25b-0x25e.7 (4) 0x250| 00| .| y: 0 0x25f-0x262.7 (4) 0x260|00 00 00 |... | 0x260| 40 00 00 00 | @... | w: 1 0x263-0x266.7 (4) 0x260| 00 00 00 00 | .... | track_width: 0 0x267-0x26a.7 (4) 0x260| 00 00 00 00 | .... | track_height: 0 0x26b-0x26e.7 (4) | | | [1]: box {} 0x26f-0x292.7 (36) 0x260| 00| .| size: 36 0x26f-0x272.7 (4) 0x270|00 00 24 |..$ | 0x270| 65 64 74 73 | edts | type: "edts" (Edit list container) 0x273-0x276.7 (4) | | | boxes: [1] 0x277-0x292.7 (28) | | | [0]: box {} 0x277-0x292.7 (28) 0x270| 00 00 00 1c | .... | size: 28 0x277-0x27a.7 (4) 0x270| 65 6c 73 74 | elst | type: "elst" (An edit list) 0x27b-0x27e.7 (4) 0x270| 00| .| version: 0 0x27f-0x27f.7 (1) 0x280|00 00 00 |... | flags: 0 0x280-0x282.7 (3) 0x280| 00 00 00 01 | .... | entry_count: 1 0x283-0x286.7 (4) | | | entries: [1] 0x287-0x292.7 (12) | | | [0]: entry {} 0x287-0x292.7 (12) 0x280| 00 00 00 32 | ...2 | segment_duration: 50 0x287-0x28a.7 (4) 0x280| 00 00 00 78 | ...x | media_time: 120 0x28b-0x28e.7 (4) 0x280| 00| .| media_rate: 1 0x28f-0x292.7 (4) 0x290|01 00 00 |... | | | | [2]: box {} 0x293-0x3d6.7 (324) 0x290| 00 00 01 44 | ...D | size: 324 0x293-0x296.7 (4) 0x290| 6d 64 69 61 | mdia | type: "mdia" (Container for the media information in a track) 0x297-0x29a.7 (4) | | | boxes: [3] 0x29b-0x3d6.7 (316) | | | [0]: box {} 0x29b-0x2ba.7 (32) 0x290| 00 00 00 20 | ... | size: 32 0x29b-0x29e.7 (4) 0x290| 6d| m| type: "mdhd" (Media header, overall information about the media) 0x29f-0x2a2.7 (4) 0x2a0|64 68 64 |dhd | 0x2a0| 00 | . | version: 0 0x2a3-0x2a3.7 (1) 0x2a0| 00 00 00 | ... | flags: 0 0x2a4-0x2a6.7 (3) 0x2a0| 00 00 00 00 | .... | creation_time: 1904-01-04T00:00:00Z (0) 0x2a7-0x2aa.7 (4) 0x2a0| 00 00 00 00 | .... | modification_time: 1904-01-04T00:00:00Z (0) 0x2ab-0x2ae.7 (4) 0x2a0| 00| .| time_scale: 48000 0x2af-0x2b2.7 (4) 0x2b0|00 bb 80 |... | 0x2b0| 00 00 09 d8 | .... | duration: 2520 0x2b3-0x2b6.7 (4) 0x2b0| 55 c4 | U. | language: "und" 0x2b7-0x2b8.7 (2) 0x2b0| 00 00 | .. | quality: 0 0x2b9-0x2ba.7 (2) | | | [1]: box {} 0x2bb-0x2e7.7 (45) 0x2b0| 00 00 00 2d | ...- | size: 45 0x2bb-0x2be.7 (4) 0x2b0| 68| h| type: "hdlr" (Handler, declares the media (handler) type) 0x2bf-0x2c2.7 (4) 0x2c0|64 6c 72 |dlr | 0x2c0| 00 | . | version: 0 0x2c3-0x2c3.7 (1) 0x2c0| 00 00 00 | ... | flags: 0 0x2c4-0x2c6.7 (3) 0x2c0| 00 00 00 00 | .... | component_type: "" 0x2c7-0x2ca.7 (4) 0x2c0| 73 6f 75 6e | soun | component_subtype: "soun" (Audio Track) 0x2cb-0x2ce.7 (4) 0x2c0| 00| .| component_manufacturer: "" 0x2cf-0x2d2.7 (4) 0x2d0|00 00 00 |... | 0x2d0| 00 00 00 00 | .... | component_flags: 0 0x2d3-0x2d6.7 (4) 0x2d0| 00 00 00 00 | .... | component_flags_mask: 0 0x2d7-0x2da.7 (4) 0x2d0| 53 6f 75 6e 64| Sound| component_name: "SoundHandler" 0x2db-0x2e7.7 (13) 0x2e0|48 61 6e 64 6c 65 72 00 |Handler. | | | | [2]: box {} 0x2e8-0x3d6.7 (239) 0x2e0| 00 00 00 ef | .... | size: 239 0x2e8-0x2eb.7 (4) 0x2e0| 6d 69 6e 66| minf| type: "minf" (Media information container) 0x2ec-0x2ef.7 (4) | | | boxes: [3] 0x2f0-0x3d6.7 (231) | | | [0]: box {} 0x2f0-0x2ff.7 (16) 0x2f0|00 00 00 10 |.... | size: 16 0x2f0-0x2f3.7 (4) 0x2f0| 73 6d 68 64 | smhd | type: "smhd" (Sound media header, overall information (sound track only)) 0x2f4-0x2f7.7 (4) 0x2f0| 00 00 00 00 00 00 00 00| ........| data: 0000000000000000 0x2f8-0x2ff.7 (8) | | | [1]: box {} 0x300-0x323.7 (36) 0x300|00 00 00 24 |...$ | size: 36 0x300-0x303.7 (4) 0x300| 64 69 6e 66 | dinf | type: "dinf" (Data information box, container) 0x304-0x307.7 (4) | | | boxes: [1] 0x308-0x323.7 (28) | | | [0]: box {} 0x308-0x323.7 (28) 0x300| 00 00 00 1c | .... | size: 28 0x308-0x30b.7 (4) 0x300| 64 72 65 66| dref| type: "dref" (Data reference box, declares source(s) of media data in track) 0x30c-0x30f.7 (4) 0x310|00 |. | version: 0 0x310-0x310.7 (1) 0x310| 00 00 00 | ... | flags: 0 0x311-0x313.7 (3) 0x310| 00 00 00 01 | .... | entry_count: 1 0x314-0x317.7 (4) | | | boxes: [1] 0x318-0x323.7 (12) | | | [0]: box {} 0x318-0x323.7 (12) 0x310| 00 00 00 0c | .... | size: 12 0x318-0x31b.7 (4) 0x310| 75 72 6c 20| url | type: "url " 0x31c-0x31f.7 (4) 0x320|00 |. | version: 0 0x320-0x320.7 (1) 0x320| 00 00 01 | ... | flags: 1 0x321-0x323.7 (3) | | | data: 0x324-NA (0) | | | [2]: box {} 0x324-0x3d6.7 (179) 0x320| 00 00 00 b3 | .... | size: 179 0x324-0x327.7 (4) 0x320| 73 74 62 6c | stbl | type: "stbl" (Sample table box, container for the time/space map) 0x328-0x32b.7 (4) | | | boxes: [5] 0x32c-0x3d6.7 (171) | | | [0]: box {} 0x32c-0x372.7 (71) 0x320| 00 00 00 47| ...G| size: 71 0x32c-0x32f.7 (4) 0x330|73 74 73 64 |stsd | type: "stsd" (Sample descriptions (codec types, initialization etc.)) 0x330-0x333.7 (4) 0x330| 00 | . | version: 0 0x334-0x334.7 (1) 0x330| 00 00 00 | ... | flags: 0 0x335-0x337.7 (3) 0x330| 00 00 00 01 | .... | entry_count: 1 0x338-0x33b.7 (4) | | | boxes: [1] 0x33c-0x372.7 (55) | | | [0]: box {} 0x33c-0x372.7 (55) 0x330| 00 00 00 37| ...7| size: 55 0x33c-0x33f.7 (4) 0x340|4f 70 75 73 |Opus | type: "Opus" 0x340-0x343.7 (4) 0x340| 00 00 00 00 00 00 | ...... | reserved: 000000000000 0x344-0x349.7 (6) 0x340| 00 01 | .. | data_reference_index: 1 0x34a-0x34b.7 (2) 0x340| 00 00 | .. | version: 0 0x34c-0x34d.7 (2) 0x340| 00 00| ..| revision_level: 0 0x34e-0x34f.7 (2) 0x350|00 00 00 00 |.... | max_packet_size: 0 0x350-0x353.7 (4) 0x350| 00 01 | .. | num_audio_channels: 1 0x354-0x355.7 (2) 0x350| 00 10 | .. | sample_size: 16 0x356-0x357.7 (2) 0x350| 00 00 | .. | compression_id: 0 0x358-0x359.7 (2) 0x350| 00 00 | .. | packet_size: 0 0x35a-0x35b.7 (2) 0x350| bb 80 00 00| ....| sample_rate: 48000 0x35c-0x35f.7 (4) | | | boxes: [1] 0x360-0x372.7 (19) | | | [0]: box {} 0x360-0x372.7 (19) 0x360|00 00 00 13 |.... | size: 19 0x360-0x363.7 (4) 0x360| 64 4f 70 73 | dOps | type: "dOps" 0x364-0x367.7 (4) | | | descriptor: {} (opus_packet) 0x368-0x372.7 (11) | | | type: "audio" 0x368-NA (0) | | | toc: {} 0x368-0x372.7 (11) | | | config: {} 0x368-0x368.4 (0.5) 0x360| 00 | . | config: 0 0x368-0x368.4 (0.5) | | | mode: "SILK-only" 0x368.5-NA (0) | | | bandwidth: "NB" 0x368.5-NA (0) | | | frame_size: 10 0x368.5-NA (0) 0x360| 00 | . | stereo: false 0x368.5-0x368.5 (0.1) | | | frames_per_packet: {} 0x368.6-0x368.7 (0.2) 0x360| 00 | . | config: 0 0x368.6-0x368.7 (0.2) | | | frames: 1 0x369-NA (0) | | | mode: "1 frame" 0x369-NA (0) 0x360| 01 00 78 00 00 bb 80| ..x....| data: 0100780000bb80000000 0x369-0x372.7 (10) 0x370|00 00 00 |... | | | | [1]: box {} 0x373-0x392.7 (32) 0x370| 00 00 00 20 | ... | size: 32 0x373-0x376.7 (4) 0x370| 73 74 74 73 | stts | type: "stts" (Sample time-to-sample) 0x377-0x37a.7 (4) 0x370| 00 | . | version: 0 0x37b-0x37b.7 (1) 0x370| 00 00 00 | ... | flags: 0 0x37c-0x37e.7 (3) 0x370| 00| .| entry_count: 2 0x37f-0x382.7 (4) 0x380|00 00 02 |... | | | | entries: [2] 0x383-0x392.7 (16) | | | [0]: entry {} 0x383-0x38a.7 (8) 0x380| 00 00 00 02 | .... | count: 2 0x383-0x386.7 (4) 0x380| 00 00 03 c0 | .... | delta: 960 0x387-0x38a.7 (4) | | | [1]: entry {} 0x38b-0x392.7 (8) 0x380| 00 00 00 01 | .... | count: 1 0x38b-0x38e.7 (4) 0x380| 00| .| delta: 600 0x38f-0x392.7 (4) 0x390|00 02 58 |..X | | | | [2]: box {} 0x393-0x3ae.7 (28) 0x390| 00 00 00 1c | .... | size: 28 0x393-0x396.7 (4) 0x390| 73 74 73 63 | stsc | type: "stsc" (Sample-to-chunk, partial data-offset information) 0x397-0x39a.7 (4) 0x390| 00 | . | version: 0 0x39b-0x39b.7 (1) 0x390| 00 00 00 | ... | flags: 0 0x39c-0x39e.7 (3) 0x390| 00| .| entry_count: 1 0x39f-0x3a2.7 (4) 0x3a0|00 00 01 |... | | | | entries: [1] 0x3a3-0x3ae.7 (12) | | | [0]: entry {} 0x3a3-0x3ae.7 (12) 0x3a0| 00 00 00 01 | .... | first_chunk: 1 0x3a3-0x3a6.7 (4) 0x3a0| 00 00 00 03 | .... | samples_per_chunk: 3 0x3a7-0x3aa.7 (4) 0x3a0| 00 00 00 01 | .... | sample_description_id: 1 0x3ab-0x3ae.7 (4) | | | [3]: box {} 0x3af-0x3c2.7 (20) 0x3a0| 00| .| size: 20 0x3af-0x3b2.7 (4) 0x3b0|00 00 14 |... | 0x3b0| 73 74 73 7a | stsz | type: "stsz" (Sample sizes (framing)) 0x3b3-0x3b6.7 (4) 0x3b0| 00 | . | version: 0 0x3b7-0x3b7.7 (1) 0x3b0| 00 00 00 | ... | flags: 0 0x3b8-0x3ba.7 (3) 0x3b0| 00 00 00 79 | ...y | sample_size: 121 0x3bb-0x3be.7 (4) 0x3b0| 00| .| entry_count: 3 0x3bf-0x3c2.7 (4) 0x3c0|00 00 03 |... | | | | [4]: box {} 0x3c3-0x3d6.7 (20) 0x3c0| 00 00 00 14 | .... | size: 20 0x3c3-0x3c6.7 (4) 0x3c0| 73 74 63 6f | stco | type: "stco" (Chunk offset, partial data-offset information) 0x3c7-0x3ca.7 (4) 0x3c0| 00 | . | version: 0 0x3cb-0x3cb.7 (1) 0x3c0| 00 00 00 | ... | flags: 0 0x3cc-0x3ce.7 (3) 0x3c0| 00| .| entry_count: 1 0x3cf-0x3d2.7 (4) 0x3d0|00 00 01 |... | | | | entries: [1] 0x3d3-0x3d6.7 (4) 0x3d0| 00 00 00 2c | ..., | [0]: chunk_offset 44 0x3d3-0x3d6.7 (4) | | | [2]: box {} 0x3d7-0x438.7 (98) 0x3d0| 00 00 00 62 | ...b | size: 98 0x3d7-0x3da.7 (4) 0x3d0| 75 64 74 61 | udta | type: "udta" (User-data) 0x3db-0x3de.7 (4) | | | boxes: [1] 0x3df-0x438.7 (90) | | | [0]: box {} 0x3df-0x438.7 (90) 0x3d0| 00| .| size: 90 0x3df-0x3e2.7 (4) 0x3e0|00 00 5a |..Z | 0x3e0| 6d 65 74 61 | meta | type: "meta" (Metadata container) 0x3e3-0x3e6.7 (4) 0x3e0| 00 00 00 00 | .... | maybe_flags: 0 0x3e7-0x3ea.7 (4) | | | boxes: [2] 0x3eb-0x438.7 (78) | | | [0]: box {} 0x3eb-0x40b.7 (33) 0x3e0| 00 00 00 21 | ...! | size: 33 0x3eb-0x3ee.7 (4) 0x3e0| 68| h| type: "hdlr" (Handler, declares the media (handler) type) 0x3ef-0x3f2.7 (4) 0x3f0|64 6c 72 |dlr | 0x3f0| 00 | . | version: 0 0x3f3-0x3f3.7 (1) 0x3f0| 00 00 00 | ... | flags: 0 0x3f4-0x3f6.7 (3) 0x3f0| 00 00 00 00 | .... | component_type: "" 0x3f7-0x3fa.7 (4) 0x3f0| 6d 64 69 72 | mdir | component_subtype: "mdir" (Metadata) 0x3fb-0x3fe.7 (4) 0x3f0| 61| a| component_manufacturer: "appl" 0x3ff-0x402.7 (4) 0x400|70 70 6c |ppl | 0x400| 00 00 00 00 | .... | component_flags: 0 0x403-0x406.7 (4) 0x400| 00 00 00 00 | .... | component_flags_mask: 0 0x407-0x40a.7 (4) 0x400| 00 | . | component_name: "" 0x40b-0x40b.7 (1) | | | [1]: box {} 0x40c-0x438.7 (45) 0x400| 00 00 00 2d| ...-| size: 45 0x40c-0x40f.7 (4) 0x410|69 6c 73 74 |ilst | type: "ilst" 0x410-0x413.7 (4) | | | boxes: [1] 0x414-0x438.7 (37) | | | [0]: box {} 0x414-0x438.7 (37) 0x410| 00 00 00 25 | ...% | size: 37 0x414-0x417.7 (4) 0x410| a9 74 6f 6f | .too | type: "\xa9too" 0x418-0x41b.7 (4) | | | boxes: [1] 0x41c-0x438.7 (29) | | | [0]: box {} 0x41c-0x438.7 (29) 0x410| 00 00 00 1d| ....| size: 29 0x41c-0x41f.7 (4) 0x420|64 61 74 61 |data | type: "data" 0x420-0x423.7 (4) 0x420| 00 | . | version: 0 0x424-0x424.7 (1) 0x420| 00 00 01 | ... | flags: 1 0x425-0x427.7 (3) 0x420| 00 00 00 00 | .... | reserved: 0 0x428-0x42b.7 (4) 0x420| 4c 61 76 66| Lavf| data: "Lavf58.45.100" 0x42c-0x438.7 (13) 0x430|35 38 2e 34 35 2e 31 30 30| |58.45.100| | | | | tracks: [1] 0x2c-0x196.7 (363) | | | [0]: track {} 0x2c-0x196.7 (363) | | | samples: [3] 0x2c-0x196.7 (363) | | | [0]: sample {} (opus_packet) 0x2c-0xa4.7 (121) | | | type: "audio" 0x2c-NA (0) | | | toc: {} 0x2c-0xa4.7 (121) | | | config: {} 0x2c-0x2c.4 (0.5) 0x020| f8 | . | config: 31 0x2c-0x2c.4 (0.5) | | | mode: "CELT-only" 0x2c.5-NA (0) | | | bandwidth: "FB" 0x2c.5-NA (0) | | | frame_size: 20 0x2c.5-NA (0) 0x020| f8 | . | stereo: false 0x2c.5-0x2c.5 (0.1) | | | frames_per_packet: {} 0x2c.6-0x2c.7 (0.2) 0x020| f8 | . | config: 0 0x2c.6-0x2c.7 (0.2) | | | frames: 1 0x2d-NA (0) | | | mode: "1 frame" 0x2d-NA (0) 0x020| 22 28 75| "(u| data: 22287568a8dd59431bff52f316f14828... 0x2d-0xa4.7 (120) 0x030|68 a8 dd 59 43 1b ff 52 f3 16 f1 48 28 77 86 10|h..YC..R...H(w..| * |until 0xa4.7 (120) | | | | | [1]: sample {} (opus_packet) 0xa5-0x11d.7 (121) | | | type: "audio" 0xa5-NA (0) | | | toc: {} 0xa5-0x11d.7 (121) | | | config: {} 0xa5-0xa5.4 (0.5) 0x0a0| f8 | . | config: 31 0xa5-0xa5.4 (0.5) | | | mode: "CELT-only" 0xa5.5-NA (0) | | | bandwidth: "FB" 0xa5.5-NA (0) | | | frame_size: 20 0xa5.5-NA (0) 0x0a0| f8 | . | stereo: false 0xa5.5-0xa5.5 (0.1) | | | frames_per_packet: {} 0xa5.6-0xa5.7 (0.2) 0x0a0| f8 | . | config: 0 0xa5.6-0xa5.7 (0.2) | | | frames: 1 0xa6-NA (0) | | | mode: "1 frame" 0xa6-NA (0) 0x0a0| 72 47 b1 0e a7 fd 3d f8 50 12| rG....=.P.| data: 7247b10ea7fd3df850126b43421f6c7a... 0xa6-0x11d.7 (120) 0x0b0|6b 43 42 1f 6c 7a 79 fd 55 31 51 77 1e 83 00 6c|kCB.lzy.U1Qw...l| * |until 0x11d.7 (120) | | | | | [2]: sample {} (opus_packet) 0x11e-0x196.7 (121) | | | type: "audio" 0x11e-NA (0) | | | toc: {} 0x11e-0x196.7 (121) | | | config: {} 0x11e-0x11e.4 (0.5) 0x110| f8 | . | config: 31 0x11e-0x11e.4 (0.5) | | | mode: "CELT-only" 0x11e.5-NA (0) | | | bandwidth: "FB" 0x11e.5-NA (0) | | | frame_size: 20 0x11e.5-NA (0) 0x110| f8 | . | stereo: false 0x11e.5-0x11e.5 (0.1) | | | frames_per_packet: {} 0x11e.6-0x11e.7 (0.2) 0x110| f8 | . | config: 0 0x11e.6-0x11e.7 (0.2) | | | frames: 1 0x11f-NA (0) | | | mode: "1 frame" 0x11f-NA (0) 0x110| 18| .| data: 1802cc495727d4a383e95333fe456233... 0x11f-0x196.7 (120) 0x120|02 cc 49 57 27 d4 a3 83 e9 53 33 fe 45 62 33 33|..IW'....S3.Eb33| * |until 0x196.7 (120) | |