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alsa-lib: pcm_plug: fix float conversion for user specified ttable

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Move custom ttable with equal channels case from a separate ttable_last
exception into a common plugins insertion loop.
Fixes plug with ttable for float pcms (jack, ladspa).
Example: aplay -fFLOAT_LE /dev/zero
pcm.!default {
    type plug
    slave.pcm { type null }
    ttable.0.0 1
}

Signed-off-by: Sergey <sergemp@mail.ru>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Sergey 2014-06-16 19:52:51 +04:00 • committed by Jaroslav Kysela
parent 95ab1c1c7c
commit 47ee780997
1 changed files with 11 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

36
src/pcm/pcm_plug.c
View file

@ -53,7 +53,7 @@ typedef struct {
const snd_config_t *rate_converter; const snd_config_t *rate_converter;
enum snd_pcm_plug_route_policy route_policy; enum snd_pcm_plug_route_policy route_policy;
snd_pcm_route_ttable_entry_t *ttable; snd_pcm_route_ttable_entry_t *ttable;
int ttable_ok, ttable_last; int ttable_ok;
unsigned int tt_ssize, tt_cused, tt_sused; unsigned int tt_ssize, tt_cused, tt_sused;
} snd_pcm_plug_t; } snd_pcm_plug_t;
@ -380,7 +380,7 @@ static int snd_pcm_plug_change_channels(snd_pcm_t *pcm, snd_pcm_t **new, snd_pcm
snd_pcm_route_ttable_entry_t *ttable; snd_pcm_route_ttable_entry_t *ttable;
int err; int err;
if (clt->channels == slv->channels && if (clt->channels == slv->channels &&
(!plug->ttable || !plug->ttable_last)) (!plug->ttable || plug->ttable_ok))
return 0; return 0;
if (clt->rate != slv->rate && if (clt->rate != slv->rate &&
clt->channels > slv->channels) clt->channels > slv->channels)
@ -485,13 +485,15 @@ static int snd_pcm_plug_change_format(snd_pcm_t *pcm, snd_pcm_t **new, snd_pcm_p
/* No conversion is needed */ /* No conversion is needed */
if (clt->format == slv->format && if (clt->format == slv->format &&
clt->rate == slv->rate && clt->rate == slv->rate &&
clt->channels == slv->channels) clt->channels == slv->channels &&
(!plug->ttable || plug->ttable_ok))
return 0; return 0;
if (snd_pcm_format_linear(slv->format)) { if (snd_pcm_format_linear(slv->format)) {
/* Conversion is done in another plugin */ /* Conversion is done in another plugin */
if (clt->rate != slv->rate || if (clt->rate != slv->rate ||
clt->channels != slv->channels) clt->channels != slv->channels ||
(plug->ttable && !plug->ttable_ok))
return 0; return 0;
cfmt = clt->format; cfmt = clt->format;
switch (clt->format) { switch (clt->format) {
@ -525,7 +527,8 @@ static int snd_pcm_plug_change_format(snd_pcm_t *pcm, snd_pcm_t **new, snd_pcm_p
if (snd_pcm_format_linear(clt->format)) { if (snd_pcm_format_linear(clt->format)) {
cfmt = clt->format; cfmt = clt->format;
f = snd_pcm_lfloat_open; f = snd_pcm_lfloat_open;
} else if (clt->rate != slv->rate || clt->channels != slv->channels) { } else if (clt->rate != slv->rate || clt->channels != slv->channels ||
(plug->ttable && !plug->ttable_ok)) {
cfmt = SND_PCM_FORMAT_S16; cfmt = SND_PCM_FORMAT_S16;
f = snd_pcm_lfloat_open; f = snd_pcm_lfloat_open;
} else } else
@ -641,11 +644,12 @@ static int snd_pcm_plug_insert_plugins(snd_pcm_t *pcm,
}; };
snd_pcm_plug_params_t p = *slave; snd_pcm_plug_params_t p = *slave;
unsigned int k = 0; unsigned int k = 0;
plug->ttable_ok = plug->ttable_last = 0; plug->ttable_ok = 0;
while (client->format != p.format || while (client->format != p.format ||
client->channels != p.channels || client->channels != p.channels ||
client->rate != p.rate || client->rate != p.rate ||
client->access != p.access) { client->access != p.access ||
(plug->ttable && !plug->ttable_ok)) {
snd_pcm_t *new; snd_pcm_t *new;
int err; int err;
if (k >= sizeof(funcs)/sizeof(*funcs)) if (k >= sizeof(funcs)/sizeof(*funcs))
@ -660,24 +664,6 @@ static int snd_pcm_plug_insert_plugins(snd_pcm_t *pcm,
} }
k++; k++;
} }
#ifdef BUILD_PCM_PLUGIN_ROUTE
/* it's exception, user specified ttable, but no reduction/expand */
if (plug->ttable && !plug->ttable_ok) {
snd_pcm_t *new;
int err;
plug->ttable_last = 1;
err = snd_pcm_plug_change_channels(pcm, &new, client, &p);
if (err < 0) {
snd_pcm_plug_clear(pcm);
return err;
}
assert(err);
assert(plug->ttable_ok);
plug->gen.slave = new;
pcm->fast_ops = new->fast_ops;
pcm->fast_op_arg = new->fast_op_arg;
}
#endif
return 0; return 0;
} }