Move the timing code from the null plugin to timer.c, so it can be easily

used in other plugins (fifo, shout, etc.).

git-svn-id: https://svn.musicpd.org/mpd/trunk@6397 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 19 insertions, 74 deletions

diff --git a/src/audioOutputs/audioOutput_null.c b/src/audioOutputs/audioOutput_null.c
index df58c7139..7dc3f1756 100644
--- a/src/audioOutputs/audioOutput_null.c
+++ b/src/audioOutputs/audioOutput_null.c
@@ -17,110 +17,55 @@
  */
 
 #include "../audioOutput.h"
-
-#include <stdlib.h>
-#include <limits.h>
-#include <sys/time.h>
-
-typedef struct _NullData {
-	uint64_t nextPlay;
-	int rate;
-} NullData;
-
-static NullData *newNullData(void)
-{
-	NullData *ret;
-
-	ret = xmalloc(sizeof(NullData));
-	ret->nextPlay = 0;
-	ret->rate = 0;
-
-	return ret;
-}
-
-static void freeNullData(NullData *nd)
-{
-	free(nd);
-}
-
-static uint64_t null_getTime(void)
-{
-	struct timeval tv;
-
-	gettimeofday(&tv, NULL);
-
-	return ((uint64_t)tv.tv_sec * 1000000) + tv.tv_usec;
-}
+#include "../timer.h"
 
 static int null_initDriver(AudioOutput *audioOutput, ConfigParam *param)
 {
-	NullData *nd;
-
-	nd = newNullData();
-	audioOutput->data = nd;
-
+	audioOutput->data = NULL;
 	return 0;
 }
 
-static void null_finishDriver(AudioOutput *audioOutput)
-{
-	freeNullData((NullData *)audioOutput->data);
-}
-
 static int null_openDevice(AudioOutput *audioOutput)
 {
-	NullData *nd;
-	AudioFormat *af;
-
-	nd = audioOutput->data;
-	af = &audioOutput->outAudioFormat;
-	nd->rate = af->sampleRate * (af->bits / CHAR_BIT) * af->channels;
+	audioOutput->data = timer_new(&audioOutput->outAudioFormat);
 	audioOutput->open = 1;
-
 	return 0;
 }
 
-static void null_dropBufferedAudio(AudioOutput *audioOutput)
-{
-	NullData *nd;
-
-	nd = audioOutput->data;
-	nd->nextPlay = 0;
-}
-
 static void null_closeDevice(AudioOutput *audioOutput)
 {
-	NullData *nd;
+	if (audioOutput->data) {
+		timer_free(audioOutput->data);
+		audioOutput->data = NULL;
+	}
 
-	nd = audioOutput->data;
-	nd->nextPlay = 0;
-	nd->rate = 0;
 	audioOutput->open = 0;
 }
 
 static int null_playAudio(AudioOutput *audioOutput, char *playChunk, int size)
 {
-	NullData *nd;
-	uint64_t now;
+	Timer *timer = audioOutput->data;
 
-	nd = audioOutput->data;
-	now = null_getTime();
+	if (!timer->started)
+		timer_start(timer);
+	else
+		timer_sync(timer);
 
-	if (nd->nextPlay == 0)
-		nd->nextPlay = now;
-	else if (nd->nextPlay > now)
-		my_usleep(nd->nextPlay - now);
-
-	nd->nextPlay += ((uint64_t)size * 1000000) / nd->rate;
+	timer_add(timer, size);
 
 	return 0;
 }
 
+static void null_dropBufferedAudio(AudioOutput *audioOutput)
+{
+	timer_reset(audioOutput->data);
+}
+
 AudioOutputPlugin nullPlugin = {
 	"null",
 	NULL,
 	null_initDriver,
-	null_finishDriver,
+	NULL,
 	null_openDevice,
 	null_playAudio,
 	null_dropBufferedAudio,