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Cleaned all hw_info. Removed snd_pcm_hw_{info,params}_rules* and changed strategy to allow the same functionality. Cleaned names tables. Added informative failure

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This commit is contained in:
Abramo Bagnara 2000-11-29 08:32:36 +00:00
parent fc9fc225f3
commit c3348ac9dd
1 changed files with 33 additions and 12 deletions
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45
aplay/aplay.c
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@ -647,21 +647,42 @@ static int test_au(int fd, void *buffer)
static void set_params(void)
{
snd_pcm_hw_info_t info;
snd_pcm_strategy_t *strategy;
int err;
snd_pcm_hw_info_any(&info);
if (mmap_flag)
hwparams.access = SND_PCM_ACCBIT_MMAP;
info.access_mask = SND_PCM_ACCBIT_MMAP;
else if (interleaved)
hwparams.access = SND_PCM_ACCBIT_RW_INTERLEAVED;
info.access_mask = SND_PCM_ACCBIT_RW_INTERLEAVED;
else
hwparams.access = SND_PCM_ACCBIT_RW_NONINTERLEAVED;
hwparams.subformat = 0;
hwparams.fragment_size = hwparams.rate * frag_length / 1000;
hwparams.fragments = hwparams.rate * buffer_length / 1000;
hwparams.fragments /= hwparams.fragment_size;
if (snd_pcm_hw_params_rulesv(handle, &hwparams,
SND_PCM_RULE_REL_BITS | SND_PCM_HW_PARAM_ACCESS,
SND_PCM_RULE_REL_NEAR | SND_PCM_HW_PARAM_FRAGMENT_SIZE,
SND_PCM_RULE_REL_NEAR | SND_PCM_HW_PARAM_FRAGMENTS,
-1) < 0) {
info.access_mask = SND_PCM_ACCBIT_RW_NONINTERLEAVED;
info.format_mask = 1 << hwparams.format;
info.channels_min = info.channels_max = hwparams.channels;
info.fragments_min = 2;
err = snd_pcm_strategy_simple(&strategy, 0, 1000000);
assert(err >= 0);
err = snd_pcm_strategy_simple_near(strategy, 0, SND_PCM_HW_PARAM_RATE,
hwparams.rate, 10);
assert(err >= 0);
err = snd_pcm_strategy_simple_near(strategy, 0, SND_PCM_HW_PARAM_FRAGMENT_SIZE,
hwparams.rate * frag_length / 1000, 1);
assert(err >= 0);
err = snd_pcm_strategy_simple_near(strategy, 0, SND_PCM_HW_PARAM_BUFFER_SIZE,
hwparams.rate * buffer_length / 1000, 1);
assert(err >= 0);
err = snd_pcm_hw_info_strategy(handle, &info, strategy);
snd_pcm_strategy_free(strategy);
if (err < 0) {
fprintf(stderr, "Unable to find params combination:\n");
err = snd_pcm_hw_info_try_explain_failure(handle, &info, NULL, 2, stderr);
if (err < 0) {
fprintf(stderr, "No explaination found for this failure\n");
}
exit(EXIT_FAILURE);
}
err = snd_pcm_hw_params_info(handle, &hwparams, &info);
if (err < 0) {
snd_pcm_dump_hw_params_fail(&hwparams, stderr);
error("unable to set hw params");
exit(EXIT_FAILURE);