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051a70bd4b
All other ranges and slicing uses exclusive end so i think it make sense to make it consistent. Update docs and add additional example for non-byte-aligned field. Also fixes issue showing zero bit ranges as start-NA.
270 lines
8.8 KiB
Plaintext
270 lines
8.8 KiB
Plaintext
# ffmpeg -f lavfi -i sine -t 10ms test.mp3
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# test alt //
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$ fq -d mp3 '.headers[].frames[0].flags.unsync // 123' test.mp3
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123
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$ fq -d mp3 '.headers[].frames[0].size // 123' test.mp3
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x00| 00 00| ..|.headers[0].frames[0].size: 15
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0x10|00 0f |.. |
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# test each in decoded order
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$ fq -d mp3 '.headers[0].header[]' test.mp3
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x0|49 44 33 |ID3 |.headers[0].header.magic: "ID3" (valid)
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x0| 04 | . |.headers[0].header.version: 4 (valid)
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x0| 00 | . |.headers[0].header.revision: 0
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.headers[0].header.flags{}:
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0x0| 00 | . | unsynchronisation: false
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0x0| 00 | . | extended_header: false
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0x0| 00 | . | experimental_indicator: false
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0x0| 00 | . | unused: 0
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x0| 00 00 00 23 | ...# |.headers[0].header.size: 35
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# TODO: proper buffer_root test
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$ fq -d mp3 -i . test.mp3
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mp3> .frames[0].header.mpeg_version | (topath | path_to_expr), tovalue, toactual, tosym, todescription
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".frames[0].header.mpeg_version"
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"1"
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3
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"1"
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"MPEG Version 1"
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mp3> .frames[0].header.bitrate | (topath | path_to_expr), tovalue, toactual, tosym, todescription
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".frames[0].header.bitrate"
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56000
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4
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56000
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null
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mp3> . | (root, buffer_root, format_root, parent | try (topath | path_to_expr) catch .), [parents | topath | path_to_expr]
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"."
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"."
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"."
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"expected decode value but got: null (null)"
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[]
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mp3> .headers[0].header.magic | (root, buffer_root, format_root, parent | topath | path_to_expr), [parents | topath | path_to_expr]
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"."
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"."
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".headers[0]"
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".headers[0].header"
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[
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".headers[0].header",
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".headers[0]",
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".headers",
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"."
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]
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mp3> .frames[0].side_info.granules[1] | (root, buffer_root, format_root, parent | topath | path_to_expr), [parents | topath | path_to_expr]
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"."
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"."
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".frames[0]"
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".frames[0].side_info.granules"
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[
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".frames[0].side_info.granules",
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".frames[0].side_info",
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".frames[0]",
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".frames",
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"."
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]
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mp3> 123 | root
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error: expected decode value but got: number (123)
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mp3> 123 | buffer_root
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error: expected decode value but got: number (123)
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mp3> 123 | format_root
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error: expected decode value but got: number (123)
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mp3> 123 | parent
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error: expected decode value but got: number (123)
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mp3> 123 | parents
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error: expected decode value but got: number (123)
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mp3> ^D
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$ fq -d mp3 -i . test.mp3
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mp3> . as $c | ("headers", 0, "abc") as $n | $n, try ($c | has($n)) catch .
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"headers"
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true
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0
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"cannot check whether object has a key: 0"
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"abc"
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false
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mp3> .headers as $c | (0, "abc") as $n | $n, try ($c | has($n)) catch .
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0
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true
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"abc"
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"cannot check whether array has a key: abc"
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mp3> .headers[0].header.magic as $c | (0, "abc") as $n | $n, try ($c | has($n)) catch .
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0
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"has cannot be applied to: string"
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"abc"
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"has cannot be applied to: string"
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mp3> . as $c | ("_start", "_stop", "_len", "_name", "_root", "_buffer_root", "_format_root", "_parent", "_sym", "_description", "_path", "_bits", "_bytes", "_error", "_gap", "_format", "_abc") as $n | $n, try ($c | has($n)) catch .
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"_start"
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true
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"_stop"
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true
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"_len"
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true
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"_name"
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true
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"_root"
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true
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"_buffer_root"
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true
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"_format_root"
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true
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"_parent"
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true
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"_sym"
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true
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"_description"
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true
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"_path"
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true
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"_bits"
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true
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"_bytes"
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true
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"_error"
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true
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"_gap"
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true
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"_format"
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true
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"_abc"
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false
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mp3> .headers as $c | ("_start", "_stop", "_len", "_name", "_root", "_buffer_root", "_format_root", "_parent", "_sym", "_description", "_path", "_bits", "_bytes", "_error", "_gap", "_format", "_abc") as $n | $n, try ($c | has($n)) catch .
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"_start"
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"cannot check whether array has a key: _start"
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"_stop"
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"cannot check whether array has a key: _stop"
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"_len"
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"cannot check whether array has a key: _len"
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"_name"
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"cannot check whether array has a key: _name"
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"_root"
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"cannot check whether array has a key: _root"
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"_buffer_root"
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"cannot check whether array has a key: _buffer_root"
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"_format_root"
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"cannot check whether array has a key: _format_root"
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"_parent"
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"cannot check whether array has a key: _parent"
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"_sym"
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"cannot check whether array has a key: _sym"
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"_description"
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"cannot check whether array has a key: _description"
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"_path"
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"cannot check whether array has a key: _path"
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"_bits"
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"cannot check whether array has a key: _bits"
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"_bytes"
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"cannot check whether array has a key: _bytes"
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"_error"
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"cannot check whether array has a key: _error"
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"_gap"
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"cannot check whether array has a key: _gap"
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"_format"
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"cannot check whether array has a key: _format"
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"_abc"
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"cannot check whether array has a key: _abc"
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mp3> .headers[0].header.magic as $c | ("_start", "_stop", "_len", "_name", "_root", "_buffer_root", "_format_root", "_parent", "_sym", "_description", "_path", "_bits", "_bytes", "_error", "_gap", "_format", "_abc") as $n | $n, try ($c | has($n)) catch .
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"_start"
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"has cannot be applied to: string"
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"_stop"
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"has cannot be applied to: string"
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"_len"
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"has cannot be applied to: string"
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"_name"
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"has cannot be applied to: string"
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"_root"
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"has cannot be applied to: string"
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"_buffer_root"
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"has cannot be applied to: string"
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"_format_root"
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"has cannot be applied to: string"
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"_parent"
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"has cannot be applied to: string"
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"_sym"
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"has cannot be applied to: string"
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"_description"
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"has cannot be applied to: string"
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"_path"
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"has cannot be applied to: string"
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"_bits"
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"has cannot be applied to: string"
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"_bytes"
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"has cannot be applied to: string"
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"_error"
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"has cannot be applied to: string"
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"_gap"
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"has cannot be applied to: string"
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"_format"
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"has cannot be applied to: string"
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"_abc"
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"has cannot be applied to: string"
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mp3> ^D
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$ fq -d mp3 -i . test.mp3
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mp3> ._start
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0
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mp3> ._stop
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5152
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mp3> ._len
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5152
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mp3> ._name
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""
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mp3> ._root
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.{}: test.mp3 (mp3)
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0x000|49 44 33 04 00 00 00 00 00 23 54 53 53 45 00 00|ID3......#TSSE..| headers[0:1]:
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* |until 0x2c.7 (45) | |
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0x020| ff fb 40| ..@| frames[0:3]:
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0x030|c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|................|
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* |until 0x283.7 (end) (599) | |
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| | | footers[0:0]:
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mp3> ._buffer_root
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.{}: test.mp3 (mp3)
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0x000|49 44 33 04 00 00 00 00 00 23 54 53 53 45 00 00|ID3......#TSSE..| headers[0:1]:
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* |until 0x2c.7 (45) | |
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0x020| ff fb 40| ..@| frames[0:3]:
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0x030|c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|................|
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* |until 0x283.7 (end) (599) | |
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| | | footers[0:0]:
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mp3> ._format_root
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.{}: test.mp3 (mp3)
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0x000|49 44 33 04 00 00 00 00 00 23 54 53 53 45 00 00|ID3......#TSSE..| headers[0:1]:
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* |until 0x2c.7 (45) | |
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0x020| ff fb 40| ..@| frames[0:3]:
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0x030|c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|................|
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* |until 0x283.7 (end) (599) | |
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| | | footers[0:0]:
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mp3> ._parent
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null
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mp3> ._sym
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null
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mp3> todescription
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"test.mp3"
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mp3> topath
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[]
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mp3> ._bits
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x000|49 44 33 04 00 00 00 00 00 23 54 53 53 45 00 00|ID3......#TSSE..|.: raw bits 0x0-0x284 (644)
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* |until 0x283.7 (end) (644) | |
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mp3> ._bytes
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x000|49 44 33 04 00 00 00 00 00 23 54 53 53 45 00 00|ID3......#TSSE..|.: raw bits 0x0-0x284 (644)
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* |until 0x283.7 (end) (644) | |
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mp3> ._error
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null
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mp3> ._gap
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false
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mp3> ._format
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"mp3"
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mp3> ._abc
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null
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mp3> fgrep("toc") | arrays[10]._index
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10
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mp3> .headers._index
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null
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mp3> ._index
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null
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mp3> .headers[0].header.version as $r | {a:12} | tojson({indent: $r}) | println
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{
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"a": 12
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}
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mp3> ^D
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