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implement a few more ioctl()s, including a subset of SNDCTL_DSP_GETOPTR. Just enough to make JavaSound work.

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1373 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-09-06 19:47:53 +00:00
parent e00ba020cb
commit 6569199778
2 changed files with 72 additions and 5 deletions
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0
src/utils/padsp Normal file → Executable file
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77
src/utils/padsp.c
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@ -93,6 +93,8 @@ struct fd_info {
pa_cvolume sink_volume, source_volume;
uint32_t sink_index, source_index;
int volume_modify_count;
int optr_n_blocks;
PA_LLIST_FIELDS(fd_info);
};
@ -579,6 +581,7 @@ static fd_info* fd_info_new(fd_info_type_t type, int *_errno) {
i->volume_modify_count = 0;
i->sink_index = (uint32_t) -1;
i->source_index = (uint32_t) -1;
i->optr_n_blocks = 0;
PA_LLIST_INIT(fd_info, i);
reset_params(i);
@ -1952,6 +1955,8 @@ static int dsp_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno)
free_streams(i);
dsp_flush_socket(i);
reset_params(i);
i->optr_n_blocks = 0;
pa_threaded_mainloop_unlock(i->mainloop);
break;
@ -2040,14 +2045,76 @@ static int dsp_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno)
break;
}
case SOUND_PCM_READ_RATE:
debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_RATE\n");
pa_threaded_mainloop_lock(i->mainloop);
*(int*) argp = i->sample_spec.rate;
pa_threaded_mainloop_unlock(i->mainloop);
break;
case SOUND_PCM_READ_CHANNELS:
debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_CHANNELS\n");
pa_threaded_mainloop_lock(i->mainloop);
*(int*) argp = i->sample_spec.channels;
pa_threaded_mainloop_unlock(i->mainloop);
break;
case SOUND_PCM_READ_BITS:
debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_BITS\n");
pa_threaded_mainloop_lock(i->mainloop);
*(int*) argp = pa_sample_size(&i->sample_spec)*8;
pa_threaded_mainloop_unlock(i->mainloop);
break;
case SNDCTL_DSP_GETOPTR: {
count_info *info;
debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETODELAY\n");
info = (count_info*) argp;
memset(info, 0, sizeof(*info));
pa_threaded_mainloop_lock(i->mainloop);
for (;;) {
pa_usec_t usec;
PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, exit_loop);
if (pa_stream_get_time(i->play_stream, &usec) >= 0) {
size_t k = pa_usec_to_bytes(usec, &i->sample_spec);
int m;
info->bytes = (int) k;
m = k / i->fragment_size;
info->blocks = m - i->optr_n_blocks;
i->optr_n_blocks = m;
break;
}
if (pa_context_errno(i->context) != PA_ERR_NODATA) {
debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_get_latency(): %s\n", pa_strerror(pa_context_errno(i->context)));
break;
}
pa_threaded_mainloop_wait(i->mainloop);
}
pa_threaded_mainloop_unlock(i->mainloop);
debug(DEBUG_LEVEL_NORMAL, __FILE__": GETOPTR bytes=%i, blocks=%i, ptr=%i\n", info->bytes, info->blocks, info->ptr);
break;
}
case SNDCTL_DSP_GETIPTR:
debug(DEBUG_LEVEL_NORMAL, __FILE__": invalid ioctl SNDCTL_DSP_GETIPTR\n");
goto inval;
case SNDCTL_DSP_GETOPTR:
debug(DEBUG_LEVEL_NORMAL, __FILE__": invalid ioctl SNDCTL_DSP_GETOPTR\n");
goto inval;
default:
debug(DEBUG_LEVEL_NORMAL, __FILE__": unknown ioctl 0x%08lx\n", request);