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Better names for ALSA API. Added min_fragments, max_fragments.

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This commit is contained in:
Abramo Bagnara 2000-05-27 16:52:17 +00:00
parent 4bb0a08bf9
commit 1a7f88d10e
26 changed files with 1938 additions and 1938 deletions
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54
src/pcm/plugin/linear.c
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@ -45,8 +45,8 @@ typedef struct linear_private_data {
} linear_t;
static void convert(snd_pcm_plugin_t *plugin,
const snd_pcm_plugin_voice_t *src_voices,
snd_pcm_plugin_voice_t *dst_voices,
const snd_pcm_plugin_channel_t *src_channels,
snd_pcm_plugin_channel_t *dst_channels,
size_t frames)
{
#define CONV_LABELS
@ -54,24 +54,24 @@ static void convert(snd_pcm_plugin_t *plugin,
#undef CONV_LABELS
linear_t *data = (linear_t *)plugin->extra_data;
void *conv = conv_labels[data->conv];
int voice;
int nvoices = plugin->src_format.voices;
for (voice = 0; voice < nvoices; ++voice) {
int channel;
int nchannels = plugin->src_format.channels;
for (channel = 0; channel < nchannels; ++channel) {
char *src;
char *dst;
int src_step, dst_step;
size_t frames1;
if (!src_voices[voice].enabled) {
if (dst_voices[voice].wanted)
snd_pcm_area_silence(&dst_voices[voice].area, 0, frames, plugin->dst_format.format);
dst_voices[voice].enabled = 0;
if (!src_channels[channel].enabled) {
if (dst_channels[channel].wanted)
snd_pcm_area_silence(&dst_channels[channel].area, 0, frames, plugin->dst_format.format);
dst_channels[channel].enabled = 0;
continue;
}
dst_voices[voice].enabled = 1;
src = src_voices[voice].area.addr + src_voices[voice].area.first / 8;
dst = dst_voices[voice].area.addr + dst_voices[voice].area.first / 8;
src_step = src_voices[voice].area.step / 8;
dst_step = dst_voices[voice].area.step / 8;
dst_channels[channel].enabled = 1;
src = src_channels[channel].area.addr + src_channels[channel].area.first / 8;
dst = dst_channels[channel].area.addr + dst_channels[channel].area.first / 8;
src_step = src_channels[channel].area.step / 8;
dst_step = dst_channels[channel].area.step / 8;
frames1 = frames;
while (frames1-- > 0) {
goto *conv;
@ -86,27 +86,27 @@ static void convert(snd_pcm_plugin_t *plugin,
}
static ssize_t linear_transfer(snd_pcm_plugin_t *plugin,
const snd_pcm_plugin_voice_t *src_voices,
snd_pcm_plugin_voice_t *dst_voices,
const snd_pcm_plugin_channel_t *src_channels,
snd_pcm_plugin_channel_t *dst_channels,
size_t frames)
{
linear_t *data;
unsigned int voice;
unsigned int channel;
if (plugin == NULL || src_voices == NULL || dst_voices == NULL)
if (plugin == NULL || src_channels == NULL || dst_channels == NULL)
return -EFAULT;
data = (linear_t *)plugin->extra_data;
if (frames == 0)
return 0;
for (voice = 0; voice < plugin->src_format.voices; voice++) {
if (src_voices[voice].area.first % 8 != 0 ||
src_voices[voice].area.step % 8 != 0)
for (channel = 0; channel < plugin->src_format.channels; channel++) {
if (src_channels[channel].area.first % 8 != 0 ||
src_channels[channel].area.step % 8 != 0)
return -EINVAL;
if (dst_voices[voice].area.first % 8 != 0 ||
dst_voices[voice].area.step % 8 != 0)
if (dst_channels[channel].area.first % 8 != 0 ||
dst_channels[channel].area.step % 8 != 0)
return -EINVAL;
}
convert(plugin, src_voices, dst_voices, frames);
convert(plugin, src_channels, dst_channels, frames);
return frames;
}
@ -138,7 +138,7 @@ int conv_index(int src_format, int dst_format)
}
int snd_pcm_plugin_build_linear(snd_pcm_plugin_handle_t *handle,
int channel,
int stream,
snd_pcm_format_t *src_format,
snd_pcm_format_t *dst_format,
snd_pcm_plugin_t **r_plugin)
@ -153,13 +153,13 @@ int snd_pcm_plugin_build_linear(snd_pcm_plugin_handle_t *handle,
if (src_format->rate != dst_format->rate)
return -EINVAL;
if (src_format->voices != dst_format->voices)
if (src_format->channels != dst_format->channels)
return -EINVAL;
if (!(snd_pcm_format_linear(src_format->format) &&
snd_pcm_format_linear(dst_format->format)))
return -EINVAL;
err = snd_pcm_plugin_build(handle, channel,
err = snd_pcm_plugin_build(handle, stream,
"linear format conversion",
src_format,
dst_format,