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add new latency argument

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2224 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2008-04-09 01:15:23 +00:00
parent 0f9e977110
commit ad18107223
1 changed files with 23 additions and 4 deletions
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27
src/utils/pacat.c
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@ -71,6 +71,8 @@ static int channel_map_set = 0;
static pa_stream_flags_t flags = 0;
static size_t latency = 0;
/* A shortcut for terminating the application */
static void quit(int ret) {
assert(mainloop_api);
@ -229,6 +231,7 @@ static void context_state_callback(pa_context *c, void *userdata) {
case PA_CONTEXT_READY: {
int r;
pa_buffer_attr buffer_attr;
assert(c);
assert(!stream);
@ -247,15 +250,21 @@ static void context_state_callback(pa_context *c, void *userdata) {
pa_stream_set_suspended_callback(stream, stream_suspended_callback, NULL);
pa_stream_set_moved_callback(stream, stream_moved_callback, NULL);
if (latency > 0) {
memset(&buffer_attr, 0, sizeof(buffer_attr));
buffer_attr.tlength = latency;
flags |= PA_STREAM_ADJUST_LATENCY;
}
if (mode == PLAYBACK) {
pa_cvolume cv;
if ((r = pa_stream_connect_playback(stream, device, NULL, flags, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL)) < 0) {
if ((r = pa_stream_connect_playback(stream, device, latency > 0 ? &buffer_attr : NULL, flags, pa_cvolume_set(&cv, sample_spec.channels, volume), NULL)) < 0) {
fprintf(stderr, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c)));
goto fail;
}
} else {
if ((r = pa_stream_connect_record(stream, device, NULL, flags)) < 0) {
if ((r = pa_stream_connect_record(stream, device, latency > 0 ? &buffer_attr : NULL, flags)) < 0) {
fprintf(stderr, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c)));
goto fail;
}
@ -478,6 +487,7 @@ static void help(const char *argv0) {
" from the sink the stream is being connected to.\n"
" --no-remix Don't upmix or downmix channels.\n"
" --no-remap Map channels by index instead of name.\n"
" --latency=BYTES Request the specified latency in bytes.\n"
,
argv0);
}
@ -494,7 +504,8 @@ enum {
ARG_FIX_RATE,
ARG_FIX_CHANNELS,
ARG_NO_REMAP,
ARG_NO_REMIX
ARG_NO_REMIX,
ARG_LATENCY
};
int main(int argc, char *argv[]) {
@ -523,6 +534,7 @@ int main(int argc, char *argv[]) {
{"fix-channels",0, NULL, ARG_FIX_CHANNELS},
{"no-remap", 0, NULL, ARG_NO_REMAP},
{"no-remix", 0, NULL, ARG_NO_REMIX},
{"latency", 0, NULL, ARG_LATENCY},
{NULL, 0, NULL, 0}
};
@ -601,7 +613,7 @@ int main(int argc, char *argv[]) {
case ARG_CHANNELMAP:
if (!pa_channel_map_parse(&channel_map, optarg)) {
fprintf(stderr, "Invalid channel map\n");
fprintf(stderr, "Invalid channel map '%s'\n", optarg);
goto quit;
}
@ -628,6 +640,13 @@ int main(int argc, char *argv[]) {
flags |= PA_STREAM_NO_REMAP_CHANNELS;
break;
case ARG_LATENCY:
if (((latency = atoi(optarg))) <= 0) {
fprintf(stderr, "Invallid latency specification '%s'\n", optarg);
goto quit;
}
break;
default:
goto quit;
}