* "alsatplg -v 1 -o -" silently corrupts output
[not found] <1640335526728811026-webhooks-bot@alsa-project.org>
@ 2021-12-24 8:45 ` GitHub issues - opened
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From: GitHub issues - opened @ 2021-12-24 8:45 UTC (permalink / raw)
To: alsa-devel
alsa-project/alsa-utils issue #131 was opened from marc-hb:
`alsatplg -v 1` works.
`alsatplg -o -` works too.
Using both produces silently a binary .tplg file prefixed with debug logs:
```
B0x003d3b/015675 - pcm 'DMIC': write 912 bytes
B0x0040cb/016587 - pcm 'HDMI1': write 912 bytes
B0x00445b/017499 - pcm 'HDMI2': write 912 bytes
B0x0047eb/018411 - pcm 'HDMI3': write 912 bytes
B0x004b7b/019323 - pcm 'DMIC16kHz': write 912 bytes
B0x004f0b/020235 - block size for type be (11:10) is 0x2ad4/10964
B0x004f0b/020235 - header index 0CoSA^E^@^@^@^@^@^@^@^H^@^@^@$^@^@
^@^@^@^@^@s^@^@^@^@^@^@^@^A^@^@^@p^@^@^@ ^@^@^@.^@^@^@ ^@^@^@^F^@^
@^@^F^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^
@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^
@^@^@^@^@^@^@^@^@^...
```
I would have expected alsatplg -v to use stderr, this would have avoided this problem. Probably too late by now.
I suggest simply failing with an error message when both options are used at the same time. Any other solution that does not silently produces corrupted output would be a huge improvement.
Context: thesofproject/sof/pull/5132
Issue URL : https://github.com/alsa-project/alsa-utils/issues/131
Repository URL: https://github.com/alsa-project/alsa-utils
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2021-12-24 8:45 ` "alsatplg -v 1 -o -" silently corrupts output GitHub issues - opened
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