better in CVS than lost

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3102 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/kits/media/soundplayer/SoundPlayerTest.cpp

@@ -0,0 +1,130 @@
+#include <Application.h>
+#include <SoundPlayer.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include "OS.h"
+
+#define NAMESPACE
+//#define NAMESPACE	BExperimental::
+
+#define FILENAME "/boot/home/test1.wav"
+
+sem_id finished = -1;
+int fd = -1;
+NAMESPACE BSoundPlayer *sp = 0;
+
+inline float abs(float f) { return f < 0 ? -f : f; }
+
+void PlayBuffer(void *cookie, void * buffer, size_t size, const media_raw_audio_format & format)
+{
+	if (size != (size_t)read(fd, buffer, size)) {
+		sp->SetHasData(false);
+		release_sem(finished);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	fd = open((argc > 1) ? argv[1] : FILENAME, O_RDONLY);
+	if (fd < 0)
+		return -1;
+		
+	lseek(fd, 44, SEEK_SET); // skip wav header
+
+	new BApplication("application/x-vnd.SoundPlayTest");
+	finished = create_sem(0, "finish wait");
+	
+	media_raw_audio_format format;
+	format = media_raw_audio_format::wildcard;
+	format.frame_rate = 44100;
+	format.channel_count = 2;
+	format.format = media_raw_audio_format::B_AUDIO_SHORT;
+	format.byte_order = B_MEDIA_LITTLE_ENDIAN;
+	format.buffer_size = 4 * 4096;
+
+	
+	sp = new NAMESPACE BSoundPlayer(&format, "sound player test", PlayBuffer);
+
+	printf("playing soundfile\n");
+	sp->SetHasData(true);
+	sp->Start();
+
+	printf("volume now %.2f\n", sp->Volume());
+	printf("volumeDB now %.2f\n", sp->VolumeDB());
+
+	float f;
+	media_node out_node;
+	int32 out_parameter;
+	float out_min_dB;
+	float out_max_dB;
+
+	sp->GetVolumeInfo(&out_node, &out_parameter, &out_min_dB, &out_max_dB);
+
+	printf("out_min_dB %.2f\n", out_min_dB);
+	printf("out_max_dB %.2f\n", out_max_dB);
+
+	/* Initial volume is not unrelyable! sometimes 0, 0.4, 1.0 and 3.2 have been observed */
+	sp->SetVolume(1.0f);
+
+	printf("waiting 5 seconds\n");
+	snooze(5000000);
+
+	printf("skipping 10MB now\n");
+	lseek(fd, 10000000, SEEK_CUR); // skip 10 MB
+
+	printf("waiting 3 seconds");
+	snooze(3000000);
+
+	do {
+		printf("\nDoing %% ramping...");
+		printf("\nramping down\n");
+		for (f = 1.0f; f >= 0.0; f -= ((f < 0.08) ? 0.005 : 0.05)) {
+			sp->SetVolume(f);
+			printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bvolume now %.2f, should be %.2f", sp->Volume(), f);
+			fflush(stdout);
+			snooze(250000);
+		}
+	
+		if (B_OK == acquire_sem_etc(finished,1, B_TIMEOUT, 0))
+			break;
+	
+		printf("\nramping up\n");
+		for (f = 0; f <= 1.0f; f += ((f < 0.08) ? 0.005 : 0.05)) {
+			sp->SetVolume(f);
+			printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bvolume now %.2f, should be %.2f", sp->Volume(), f);
+			fflush(stdout);
+			snooze(250000);
+		}
+
+		if (B_OK == acquire_sem_etc(finished,1, B_TIMEOUT, 0))
+			break;
+
+		printf("\nDoing DB ramping...");
+
+		printf("\nramping down\n");
+		for (f = out_max_dB; f >= out_min_dB; f -= abs(out_max_dB - out_min_dB) / 50) {
+			sp->SetVolumeDB(f);
+			printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bvolume now %6.2f, should be %6.2f", sp->VolumeDB(), f);
+			fflush(stdout);
+			snooze(250000);
+		}
+
+		if (B_OK == acquire_sem_etc(finished,1, B_TIMEOUT, 0))
+			break;
+
+		printf("\nramping up\n");
+		for (f = out_min_dB; f <= out_max_dB; f += abs(out_max_dB - out_min_dB) / 50) {
+			sp->SetVolumeDB(f);
+			printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bvolume now %+6.2f, should be %6.2f", sp->VolumeDB(), f);
+			fflush(stdout);
+			snooze(250000);
+		}
+	} while (B_OK != acquire_sem_etc(finished,1, B_TIMEOUT, 0));
+
+	printf("\nplayback finished\n");
+
+	delete sp;
+	
+	close(fd);
+}