mirror of
https://github.com/wader/fq.git
synced 2024-11-26 21:55:57 +03:00
56 lines
1.6 KiB
Plaintext
Executable File
56 lines
1.6 KiB
Plaintext
Executable File
#!/usr/bin/env fq -d mp4 -f
|
|
|
|
# TODO: esds, make fancy printer? shared?
|
|
# TODO: handle -1 media_time
|
|
# TODO: fragmented mp4
|
|
|
|
# root
|
|
# moov
|
|
# mvhd (movie header)
|
|
# trak (track)
|
|
# mdia
|
|
# mdhd (media header)
|
|
# hdlr (handler?)
|
|
# minf
|
|
# stbl
|
|
# stsd (sample description)
|
|
# elst (edit list)
|
|
|
|
( first(.boxes[] | select(.type == "moov")?)
|
|
| first(.boxes[] | select(.type == "mvhd")?) as $mvhd
|
|
| {
|
|
duration: $mvhd.duration,
|
|
time_scale: $mvhd.time_scale,
|
|
duration_s: ($mvhd.duration / $mvhd.time_scale),
|
|
tracks:
|
|
[ .boxes[]
|
|
| select(.type == "trak")
|
|
| first(.. | select(.type == "mdhd")?) as $mdhd
|
|
| first(.. | select(.type == "hdlr")?) as $hdlr
|
|
| first(.. | select(.type == "stsd")?) as $stsd
|
|
| first(.. | select(.type == "elst")?) as $elst
|
|
| first(.. | select(.type == "stts")?) as $stts
|
|
| ([$stts.entries[] | .count * .delta] | add) as $stts_sum
|
|
| {
|
|
component_type: $hdlr.component_subtype,
|
|
# the sample descriptors are handled as boxes by the mp4 decoder
|
|
data_format: $stsd.boxes[0].type,
|
|
media_scale: $mdhd.time_scale,
|
|
edit_list:
|
|
[ $elst.entries[]
|
|
| {
|
|
track_duration: .segment_duration,
|
|
media_time: .media_time,
|
|
track_duration_s: (.segment_duration / $mvhd.time_scale),
|
|
media_time_s: (.media_time / $mdhd.time_scale)
|
|
}
|
|
],
|
|
stts: {
|
|
sum: $stts_sum,
|
|
sum_s: ($stts_sum / $mdhd.time_scale)
|
|
}
|
|
}
|
|
]
|
|
}
|
|
)
|