mirrors/alsa-lib
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-lib.git synced 2025-11-01 22:58:49 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Enriched hw_info with buffer_size info

Browse source
This commit is contained in:
Abramo Bagnara 2000-11-24 21:25:12 +00:00
parent 8c080ce9dd
commit 93bad3b02a
1 changed files with 23 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

26
src/pcm/pcm.c
View file

@ -121,6 +121,7 @@ void snd_pcm_hw_params_to_info(snd_pcm_hw_params_t *params, snd_pcm_hw_info_t *i
info->rate_min = info->rate_max = params->rate;
info->fragment_size_min = info->fragment_size_max = params->fragment_size;
info->fragments_min = info->fragments_max = params->fragments;
info->buffer_size_min = info->buffer_size_max = params->fragment_size * params->fragments;
}
void snd_pcm_hw_info_to_params(snd_pcm_hw_info_t *info, snd_pcm_hw_params_t *params)
@ -529,6 +530,7 @@ static assoc_t hw_params[] = {
HW_PARAM(RATE),
HW_PARAM(FRAGMENT_SIZE),
HW_PARAM(FRAGMENTS),
HW_PARAM(BUFFER_SIZE),
END
};
@ -739,6 +741,20 @@ int snd_pcm_dump_hw_info(snd_pcm_hw_info_t *info,
fprintf(fp, " - %u", info->fragments_max);
}
putc('\n', fp);
fputs("buffer_size: ", fp);
if (info->buffer_size_min <= 1 &&
info->buffer_size_max == ULONG_MAX)
fputs("ALL", fp);
else if (info->buffer_size_min > info->buffer_size_max)
fputs("NONE", fp);
else {
fprintf(fp, "%lu", (unsigned long)info->buffer_size_min);
if (info->buffer_size_min < info->buffer_size_max)
fprintf(fp, " - %lu", (unsigned long)info->buffer_size_max);
}
putc('\n', fp);
return 0;
}
@ -2639,7 +2655,7 @@ int snd_pcm_hw_params_rules(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
info.subformat_mask = ~0;
break;
case SND_PCM_HW_PARAM_CHANNELS:
info.channels_min = 0;
info.channels_min = 1;
info.channels_max = UINT_MAX;
break;
case SND_PCM_HW_PARAM_RATE:
@ -2647,12 +2663,16 @@ int snd_pcm_hw_params_rules(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
info.rate_max = UINT_MAX;
break;
case SND_PCM_HW_PARAM_FRAGMENT_SIZE:
info.fragment_size_min = 0;
info.fragment_size_min = 1;
info.fragment_size_max = ULONG_MAX;
info.buffer_size_min = 1;
info.buffer_size_max = ULONG_MAX;
break;
case SND_PCM_HW_PARAM_FRAGMENTS:
info.fragments_min = 0;
info.fragments_min = 1;
info.fragments_max = UINT_MAX;
info.buffer_size_min = 1;
info.buffer_size_max = ULONG_MAX;
break;
default:
assert(0);