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alsa-pcm: handle and warn about a driver bug wrt channels

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If the driver returns a larger min than max channel count, log a warning
and swap the two numbers.

See #4687
This commit is contained in:
Wim Taymans 2025-05-08 16:01:18 +02:00
parent d5e2cc94cd
commit b2695f86cf
1 changed files with 6 additions and 0 deletions
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6
spa/plugins/alsa/alsa-pcm.c
View file

@ -1563,6 +1563,12 @@ static int add_channels(struct state *state, bool all, uint32_t index, uint32_t
spa_log_debug(state->log, "channels (%d %d) default:%d all:%d", spa_log_debug(state->log, "channels (%d %d) default:%d all:%d",
min, max, state->default_channels, all); min, max, state->default_channels, all);
if (min > max) {
spa_log_warn(state->log, "driver bug! min > max channels: (%d > %d)",
min, max);
SPA_SWAP(min, max);
}
if (state->default_channels != 0 && !all) { if (state->default_channels != 0 && !all) {
if (min < state->default_channels) if (min < state->default_channels)
min = state->default_channels; min = state->default_channels;