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Added support for hw_free in alsa-lib

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This commit is contained in:
Abramo Bagnara 2001-01-19 13:10:50 +00:00
parent 87f9071c08
commit f12a252f20
21 changed files with 150 additions and 63 deletions
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28
src/pcm/pcm_adpcm.c
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@ -317,18 +317,6 @@ static void adpcm_encode(const snd_pcm_channel_area_t *src_areas,
}
}
static int snd_pcm_adpcm_close(snd_pcm_t *pcm)
{
snd_pcm_adpcm_t *adpcm = pcm->private;
int err = 0;
if (adpcm->plug.close_slave)
err = snd_pcm_close(adpcm->plug.slave);
if (adpcm->states)
free(adpcm->states);
free(adpcm);
return 0;
}
static int snd_pcm_adpcm_hw_refine_cprepare(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
{
snd_pcm_adpcm_t *adpcm = pcm->private;
@ -449,12 +437,21 @@ static int snd_pcm_adpcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t * params)
adpcm->func = adpcm_encode;
}
}
if (adpcm->states)
free(adpcm->states);
assert(!adpcm->states);
adpcm->states = malloc(snd_pcm_hw_param_value(params, SND_PCM_HW_PARAM_CHANNELS, 0) * sizeof(*adpcm->states));
return 0;
}
static int snd_pcm_adpcm_hw_free(snd_pcm_t *pcm)
{
snd_pcm_adpcm_t *adpcm = pcm->private;
if (adpcm->states) {
free(adpcm->states);
adpcm->states = 0;
}
return snd_pcm_hw_free(adpcm->plug.slave);
}
static int snd_pcm_adpcm_init(snd_pcm_t *pcm)
{
snd_pcm_adpcm_t *adpcm = pcm->private;
@ -550,11 +547,12 @@ static void snd_pcm_adpcm_dump(snd_pcm_t *pcm, snd_output_t *out)
}
snd_pcm_ops_t snd_pcm_adpcm_ops = {
close: snd_pcm_adpcm_close,
close: snd_pcm_plugin_close,
card: snd_pcm_plugin_card,
info: snd_pcm_plugin_info,
hw_refine: snd_pcm_adpcm_hw_refine,
hw_params: snd_pcm_adpcm_hw_params,
hw_free: snd_pcm_adpcm_hw_free,
sw_params: snd_pcm_plugin_sw_params,
channel_info: snd_pcm_plugin_channel_info,
dump: snd_pcm_adpcm_dump,