* Basic Mu-Law plugin
*/
-typedef void (*mulaw_f)(snd_pcm_plugin_t *plugin,
- const snd_pcm_plugin_channel_t *src_channels,
- snd_pcm_plugin_channel_t *dst_channels,
+typedef void (*mulaw_f)(struct snd_pcm_plugin *plugin,
+ const struct snd_pcm_plugin_channel *src_channels,
+ struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames);
-typedef struct mulaw_private_data {
+struct mulaw_priv {
mulaw_f func;
int conv;
-} mulaw_t;
+};
-static void mulaw_decode(snd_pcm_plugin_t *plugin,
- const snd_pcm_plugin_channel_t *src_channels,
- snd_pcm_plugin_channel_t *dst_channels,
+static void mulaw_decode(struct snd_pcm_plugin *plugin,
+ const struct snd_pcm_plugin_channel *src_channels,
+ struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
#define PUT_S16_LABELS
#include "plugin_ops.h"
#undef PUT_S16_LABELS
- mulaw_t *data = (mulaw_t *)plugin->extra_data;
+ struct mulaw_priv *data = (struct mulaw_priv *)plugin->extra_data;
void *put = put_s16_labels[data->conv];
int channel;
int nchannels = plugin->src_format.channels;
}
}
-static void mulaw_encode(snd_pcm_plugin_t *plugin,
- const snd_pcm_plugin_channel_t *src_channels,
- snd_pcm_plugin_channel_t *dst_channels,
+static void mulaw_encode(struct snd_pcm_plugin *plugin,
+ const struct snd_pcm_plugin_channel *src_channels,
+ struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
#define GET_S16_LABELS
#include "plugin_ops.h"
#undef GET_S16_LABELS
- mulaw_t *data = (mulaw_t *)plugin->extra_data;
+ struct mulaw_priv *data = (struct mulaw_priv *)plugin->extra_data;
void *get = get_s16_labels[data->conv];
int channel;
int nchannels = plugin->src_format.channels;
}
}
-static snd_pcm_sframes_t mulaw_transfer(snd_pcm_plugin_t *plugin,
- const snd_pcm_plugin_channel_t *src_channels,
- snd_pcm_plugin_channel_t *dst_channels,
+static snd_pcm_sframes_t mulaw_transfer(struct snd_pcm_plugin *plugin,
+ const struct snd_pcm_plugin_channel *src_channels,
+ struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
- mulaw_t *data;
+ struct mulaw_priv *data;
snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
if (frames == 0)
}
}
#endif
- data = (mulaw_t *)plugin->extra_data;
+ data = (struct mulaw_priv *)plugin->extra_data;
data->func(plugin, src_channels, dst_channels, frames);
return frames;
}
-int snd_pcm_plugin_build_mulaw(snd_pcm_plug_t *plug,
- snd_pcm_plugin_format_t *src_format,
- snd_pcm_plugin_format_t *dst_format,
- snd_pcm_plugin_t **r_plugin)
+int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
+ struct snd_pcm_plugin_format *src_format,
+ struct snd_pcm_plugin_format *dst_format,
+ struct snd_pcm_plugin **r_plugin)
{
int err;
- mulaw_t *data;
- snd_pcm_plugin_t *plugin;
- snd_pcm_plugin_format_t *format;
+ struct mulaw_priv *data;
+ struct snd_pcm_plugin *plugin;
+ struct snd_pcm_plugin_format *format;
mulaw_f func;
snd_assert(r_plugin != NULL, return -ENXIO);
err = snd_pcm_plugin_build(plug, "Mu-Law<->linear conversion",
src_format, dst_format,
- sizeof(mulaw_t), &plugin);
+ sizeof(struct mulaw_priv), &plugin);
if (err < 0)
return err;
- data = (mulaw_t*)plugin->extra_data;
+ data = (struct mulaw_priv *)plugin->extra_data;
data->func = func;
data->conv = getput_index(format->format);
+ snd_assert(data->conv >= 0 && data->conv < 4*2*2, return -EINVAL);
plugin->transfer = mulaw_transfer;
*r_plugin = plugin;
return 0;