File 0009-aplay-Add-i-option-for-interactive-mode.patch of Package alsa-utils

From d67a965aec800483ba48d6de736cb3851163e678 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 3 Jun 2011 12:41:26 +0200
Subject: [PATCH 09/16] aplay: Add -i option for interactive mode

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>
---
 aplay/aplay.1 |    4 ++++
 aplay/aplay.c |   14 +++++++++++++-
 2 files changed, 17 insertions(+), 1 deletions(-)

diff --git a/aplay/aplay.1 b/aplay/aplay.1
index b6caf0b..8ccf556 100644
--- a/aplay/aplay.1
+++ b/aplay/aplay.1
@@ -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
diff --git a/aplay/aplay.c b/aplay/aplay.c
index c09f23c..04959b8 100644
--- a/aplay/aplay.c
+++ b/aplay/aplay.c
@@ -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') {
-- 
1.7.5.3
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