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Fixed return value for plugin transfer function

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This commit is contained in:
Abramo Bagnara 1999-12-25 15:23:47 +00:00
parent 3696e16613
commit cde18e13bc
1 changed files with 60 additions and 60 deletions
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120
src/pcm/plugin/rate.c
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@ -234,66 +234,6 @@ static void resample8_shrink(struct rate_private_data *data, int voices,
} }
} }
static ssize_t rate_transfer(snd_pcm_plugin_t *plugin,
char *src_ptr, size_t src_size,
char *dst_ptr, size_t dst_size)
{
struct rate_private_data *data;
if (plugin == NULL || src_ptr == NULL || src_size < 0 ||
dst_ptr == NULL || dst_size < 0)
return -EINVAL;
if (src_size == 0)
return 0;
data = (struct rate_private_data *)snd_pcm_plugin_extra_data(plugin);
if (data == NULL)
return -EINVAL;
if (data->sample_size == 2) {
if (data->src_rate < data->dst_rate) {
resample16_expand(data, data->src_voices,
(signed short *)src_ptr, src_size / (data->src_voices * 2),
(signed short *)dst_ptr, dst_size / (data->dst_voices * 2));
} else {
resample16_shrink(data, data->src_voices,
(signed short *)src_ptr, src_size / (data->src_voices * 2),
(signed short *)dst_ptr, dst_size / (data->dst_voices * 2));
}
} else {
if (data->src_rate < data->dst_rate) {
resample8_expand(data, data->src_voices,
src_ptr, src_size / data->src_voices,
dst_ptr, dst_size / data->dst_voices);
} else {
resample8_shrink(data, data->src_voices,
src_ptr, src_size / data->src_voices,
dst_ptr, dst_size / data->dst_voices);
}
}
return dst_size / (data->sample_size * data->src_voices) * (data->sample_size * data->src_voices);
}
static int rate_action(snd_pcm_plugin_t *plugin, snd_pcm_plugin_action_t action)
{
struct rate_private_data *data;
int voice;
if (plugin == NULL)
return -EINVAL;
data = (struct rate_private_data *)snd_pcm_plugin_extra_data(plugin);
switch (action) {
case INIT:
case PREPARE:
case DRAIN:
case FLUSH:
data->pos = 0;
for (voice = 0; voice < data->src_voices; ++voice) {
data->last_S1[voice] = data->last_S2[voice] = 0;
}
break;
}
return 0; /* silenty ignore other actions */
}
static ssize_t rate_src_size(snd_pcm_plugin_t *plugin, size_t size) static ssize_t rate_src_size(snd_pcm_plugin_t *plugin, size_t size)
{ {
struct rate_private_data *data; struct rate_private_data *data;
@ -358,6 +298,66 @@ static ssize_t rate_dst_size(snd_pcm_plugin_t *plugin, size_t size)
return res; return res;
} }
static ssize_t rate_transfer(snd_pcm_plugin_t *plugin,
char *src_ptr, size_t src_size,
char *dst_ptr, size_t dst_size)
{
struct rate_private_data *data;
if (plugin == NULL || src_ptr == NULL || src_size < 0 ||
dst_ptr == NULL || dst_size < 0)
return -EINVAL;
if (src_size == 0)
return 0;
data = (struct rate_private_data *)snd_pcm_plugin_extra_data(plugin);
if (data == NULL)
return -EINVAL;
if (data->sample_size == 2) {
if (data->src_rate < data->dst_rate) {
resample16_expand(data, data->src_voices,
(signed short *)src_ptr, src_size / (data->src_voices * 2),
(signed short *)dst_ptr, dst_size / (data->dst_voices * 2));
} else {
resample16_shrink(data, data->src_voices,
(signed short *)src_ptr, src_size / (data->src_voices * 2),
(signed short *)dst_ptr, dst_size / (data->dst_voices * 2));
}
} else {
if (data->src_rate < data->dst_rate) {
resample8_expand(data, data->src_voices,
src_ptr, src_size / data->src_voices,
dst_ptr, dst_size / data->dst_voices);
} else {
resample8_shrink(data, data->src_voices,
src_ptr, src_size / data->src_voices,
dst_ptr, dst_size / data->dst_voices);
}
}
return rate_dst_size(plugin, src_size);
}
static int rate_action(snd_pcm_plugin_t *plugin, snd_pcm_plugin_action_t action)
{
struct rate_private_data *data;
int voice;
if (plugin == NULL)
return -EINVAL;
data = (struct rate_private_data *)snd_pcm_plugin_extra_data(plugin);
switch (action) {
case INIT:
case PREPARE:
case DRAIN:
case FLUSH:
data->pos = 0;
for (voice = 0; voice < data->src_voices; ++voice) {
data->last_S1[voice] = data->last_S2[voice] = 0;
}
break;
}
return 0; /* silenty ignore other actions */
}
int snd_pcm_plugin_build_rate(snd_pcm_format_t *src_format, int snd_pcm_plugin_build_rate(snd_pcm_format_t *src_format,
snd_pcm_format_t *dst_format, snd_pcm_format_t *dst_format,
snd_pcm_plugin_t **r_plugin) snd_pcm_plugin_t **r_plugin)