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aplay: Add -i option for interactive mode

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The recent addition of pause/resume control via keyboard brought
a problem when aplay/arecord is invoked in background.  For avoiding
regressions, it's safer to use non-interactive mode as default and
enable the new feature via an option.

Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-06-03 12:41:26 +02:00
parent f30fbe3901
commit d67a965aec
2 changed files with 17 additions and 1 deletions
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4
aplay/aplay.1
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@ -137,6 +137,10 @@ by typing aplay.
Record. This is the default if the program is invoked
by typing arecord.
.TP
\fI\-i, \-\-interactive\fP
Allow interactive operation via stdin.
Currently only pause/resume via space or enter key is implemented.
.TP
\fI\-\-disable\-resample\fP
Disable automatic rate resample.
.TP

14
aplay/aplay.c
View file

@ -103,6 +103,7 @@ static int avail_min = -1;
static int start_delay = 0;
static int stop_delay = 0;
static int monotonic = 0;
static int interactive = 0;
static int can_pause = 0;
static int verbose = 0;
static int vumeter = VUMETER_NONE;
@ -200,6 +201,7 @@ _("Usage: %s [OPTION]... [FILE]...\n"
"-v, --verbose show PCM structure and setup (accumulative)\n"
"-V, --vumeter=TYPE enable VU meter (TYPE: mono or stereo)\n"
"-I, --separate-channels one file for each channel\n"
"-i, --interactive allow interactive operation from stdin\n"
" --disable-resample disable automatic rate resample\n"
" --disable-channels disable automatic channel conversions\n"
" --disable-format disable automatic format conversions\n"
@ -404,7 +406,7 @@ enum {
int main(int argc, char *argv[])
{
int option_index;
static const char short_options[] = "hnlLD:qt:c:f:r:d:MNF:A:R:T:B:vV:IPC";
static const char short_options[] = "hnlLD:qt:c:f:r:d:MNF:A:R:T:B:vV:IPCi";
static const struct option long_options[] = {
{"help", 0, 0, 'h'},
{"version", 0, 0, OPT_VERSION},
@ -442,6 +444,7 @@ int main(int argc, char *argv[])
{"max-file-time", 1, 0, OPT_MAX_FILE_TIME},
{"process-id-file", 1, 0, OPT_PROCESS_ID_FILE},
{"use-strftime", 0, 0, OPT_USE_STRFTIME},
{"interactive", 0, 0, 'i'},
{0, 0, 0, 0}
};
char *pcm_name = "default";
@ -608,6 +611,9 @@ int main(int argc, char *argv[])
if (file_type == FORMAT_DEFAULT)
file_type = FORMAT_WAVE;
break;
case 'i':
interactive = 1;
break;
case OPT_DISABLE_RESAMPLE:
open_mode |= SND_PCM_NO_AUTO_RESAMPLE;
break;
@ -1206,6 +1212,8 @@ static void init_stdin(void)
struct termios term;
long flags;
if (!interactive)
return;
tcgetattr(fileno(stdin), &term);
term_c_lflag = term.c_lflag;
if (fd == fileno(stdin))
@ -1221,6 +1229,8 @@ static void done_stdin(void)
{
struct termios term;
if (!interactive)
return;
if (fd == fileno(stdin) || term_c_lflag == -1)
return;
tcgetattr(fileno(stdin), &term);
@ -1258,6 +1268,8 @@ static void check_stdin(void)
{
unsigned char b;
if (!interactive)
return;
if (fd != fileno(stdin)) {
while (read(fileno(stdin), &b, 1) == 1) {
if (b == ' ' || b == '\r') {