From: Daniel Willmann <d.willmann@samsung.com>
Date: Fri, 14 Dec 2012 23:38:28 +0000 (+0000)
Subject: ecore_audio: Add an example - a simple CLI music player
X-Git-Tag: submit/devel/efl/20131022.203902~2830
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=21436714202ccb866350a23e04631d66491d7163;p=platform%2Fupstream%2Fefl.git

ecore_audio: Add an example - a simple CLI music player

Give it sound files (ogg, wav, not mp3) as parameter or

"tone:freq=<f>,duration=<dur_in_s>" to play a lovely sine wave

* '<' and '>' seek forward and backward
* '+' and '-' change the volume
* Space toggles pause
* Shows information for the song (remaining, %)
* (Un)loop a song with 'l'
* 'n' - Next song
* 'm' - Next song simultaneous to current
* Volume can be set from 0 - 150%

Signed-off-by: Daniel Willmann <d.willmann@samsung.com>

SVN revision: 81001
---

diff --git a/src/examples/ecore/Makefile.am b/src/examples/ecore/Makefile.am
index 52b7a58..170e3b7 100644
--- a/src/examples/ecore/Makefile.am
+++ b/src/examples/ecore/Makefile.am
@@ -8,6 +8,7 @@ AM_CPPFLAGS = \
 -I$(top_srcdir)/src/lib/ecore_input \
 -I$(top_srcdir)/src/lib/ecore_con \
 -I$(top_srcdir)/src/lib/ecore_evas \
+-I$(top_srcdir)/src/lib/ecore_audio \
 -I$(top_builddir)/src/lib/eina \
 -I$(top_builddir)/src/lib/eo \
 -I$(top_builddir)/src/lib/evas \
@@ -15,6 +16,7 @@ AM_CPPFLAGS = \
 -I$(top_builddir)/src/lib/ecore_input \
 -I$(top_builddir)/src/lib/ecore_con \
 -I$(top_builddir)/src/lib/ecore_evas \
+-I$(top_builddir)/src/lib/ecore_audio \
 -DPACKAGE_EXAMPLES_DIR=\"$(datadir)/ecore/examples\" \
 @ECORE_CFLAGS@
 
@@ -49,6 +51,15 @@ ecore_thread_example \
 ecore_time_functions_example \
 ecore_timer_example
 
+if HAVE_ECORE_AUDIO
+EXTRA_PROGRAMS += \
+ecore_audio_playback
+
+ecore_audio_playback_SOURCES = ecore_audio_playback.c
+ecore_audio_playback_LDADD = $(top_builddir)/src/lib/ecore_audio/libecore_audio.la $(top_builddir)/src/lib/ecore/libecore.la $(top_builddir)/src/lib/eina/libeina.la @ECORE_LIBS@
+
+endif
+
 ecore_animator_example_SOURCES = ecore_animator_example.c
 ecore_animator_example_LDADD = $(top_builddir)/src/lib/ecore_evas/libecore_evas.la $(top_builddir)/src/lib/ecore/libecore.la $(top_builddir)/src/lib/evas/libevas.la @ECORE_LIBS@
 
@@ -138,6 +149,7 @@ ecore_timer_example_LDADD = $(top_builddir)/src/lib/ecore/libecore.la @ECORE_LIB
 
 SRCS = \
 ecore_animator_example \
+ecore_audio_playback \
 ecore_client_bench \
 ecore_con_client_simple_example \
 ecore_con_lookup_example \
diff --git a/src/examples/ecore/ecore_audio_playback.c b/src/examples/ecore/ecore_audio_playback.c
new file mode 100644
index 0000000..1ec7444
--- /dev/null
+++ b/src/examples/ecore/ecore_audio_playback.c
@@ -0,0 +1,274 @@
+#include <stdio.h>
+#include <string.h>
+#include <libgen.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <termios.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <Ecore.h>
+#include <Ecore_Audio.h>
+#include <Eina.h>
+
+Ecore_Audio_Object *out = NULL;
+double volume = 1;
+Eina_List *inputs = NULL;
+
+void
+handle_cmd(char *cmd, size_t bread)
+{
+   Eina_List *out_inputs, *input;
+   Ecore_Audio_Object *in;
+   Eina_Bool paused;
+   double pos;
+   int min;
+
+   if (!out)
+     return;
+
+   out_inputs = ecore_audio_output_inputs_get(out);
+   EINA_LIST_FOREACH(out_inputs, input, in)
+     {
+        pos = ecore_audio_input_seek(in, 0, SEEK_CUR);
+        if (!strncmp(cmd, "<", bread))
+          pos = ecore_audio_input_seek(in, -10, SEEK_CUR);
+        else if (!strncmp(cmd, ">", bread))
+          pos = ecore_audio_input_seek(in, 10, SEEK_CUR);
+
+        min = pos / 60;
+        printf("Position: %2im %5.02fs (%0.2f%%) - %s\n", min, pos - min * 60, pos/ecore_audio_input_length_get(in)*100, ecore_audio_input_name_get(in));
+
+     }
+
+   if (!strncmp(cmd, "p", bread))
+     {
+     }
+   else if (!strncmp(cmd, "n", bread))
+     {
+        in = eina_list_data_get(out_inputs);
+        ecore_audio_output_input_del(out, in);
+        inputs = eina_list_remove(inputs, in);
+
+        if (eina_list_count(inputs) > 0)
+          {
+             in = (Ecore_Audio_Object *)eina_list_data_get(inputs);
+
+             printf("Start: %s (%0.2fs)\n", ecore_audio_input_name_get(in), ecore_audio_input_length_get(in));
+             ecore_audio_output_input_add(out, in);
+          }
+       else
+         {
+           printf("Done\n");
+           ecore_main_loop_quit();
+         }
+     }
+   else if (!strncmp(cmd, "m", bread))
+     {
+        inputs = eina_list_remove(inputs, eina_list_data_get(inputs));
+        if (eina_list_count(inputs) > 0)
+          {
+             in = (Ecore_Audio_Object *)eina_list_data_get(inputs);
+
+             printf("Start: %s (%0.2fs)\n", ecore_audio_input_name_get(in), ecore_audio_input_length_get(in));
+             ecore_audio_output_input_add(out, in);
+          }
+     }
+   else if (!strncmp(cmd, "l", bread))
+     {
+        EINA_LIST_FOREACH(out_inputs, input, in)
+          {
+             Eina_Bool loop = !ecore_audio_input_looped_get(in);
+             printf("%s song %s\n", loop?"Looping":"Not looping", ecore_audio_input_name_get(in));
+             ecore_audio_input_looped_set(in, loop);
+          }
+     }
+   else if (!strncmp(cmd, "+", bread))
+     {
+        if (volume <= 1.5)
+          volume += 0.01;
+        ecore_audio_output_volume_set(out, volume);
+        printf("Volume: %3.0f%%\n", volume * 100);
+     }
+   else if (!strncmp(cmd, "-", bread))
+     {
+        if (volume >= 0)
+          volume -= 0.01;
+        ecore_audio_output_volume_set(out, volume);
+        printf("Volume: %3.0f%%\n", volume * 100);
+     }
+   else if (!strncmp(cmd, " ", bread))
+     {
+        EINA_LIST_FOREACH(out_inputs, input, in)
+          {
+             paused = ecore_audio_input_paused_get(in);
+             ecore_audio_input_paused_set(in, !paused);
+             printf("%s %s\n%0.2f remaining\n", !paused ? "Paused" : "Unpaused", ecore_audio_input_name_get(in), ecore_audio_input_remaining_get(in));
+          }
+     }
+   else if (!strncmp(cmd, "q", bread))
+     {
+        ecore_main_loop_quit();
+     }
+   else
+     printf("Unhandled cmd '%s'\n", cmd);
+
+}
+
+Eina_Bool
+handle_input(void *data, Ecore_Fd_Handler *handler)
+{
+   size_t bread;
+   char buf[20];
+   int fd, i;
+
+   if (!ecore_main_fd_handler_active_get(handler, ECORE_FD_READ))
+     return EINA_TRUE;
+
+   fd = ecore_main_fd_handler_fd_get(handler);
+
+   bread = read(fd, buf, sizeof(buf));
+   if (bread == 0)
+     {
+        printf("Ctrl-D?\n");
+        ecore_main_loop_quit();
+
+        return EINA_FALSE;
+     }
+
+   handle_cmd(buf, bread);
+
+   return EINA_TRUE;
+}
+
+static Eina_Bool _play_started(void *data, int type, void *event)
+{
+  Ecore_Audio_Object *in = (Ecore_Audio_Object *)event;
+  printf("Start: %s\n", ecore_audio_input_name_get(in));
+  return EINA_TRUE;
+}
+
+static Eina_Bool _play_finished(void *data, int type, void *event)
+{
+  Ecore_Audio_Object *in = (Ecore_Audio_Object *)event;
+
+  printf("Done: %s\n", ecore_audio_input_name_get(in));
+
+  inputs = eina_list_remove(inputs, in);
+  ecore_audio_output_input_del(out, in);
+  ecore_audio_input_del(in);
+
+
+  if (eina_list_count(inputs) > 0)
+    {
+      in = (Ecore_Audio_Object *)eina_list_data_get(inputs);
+
+      printf("Start: %s\n", ecore_audio_input_name_get(in));
+      ecore_audio_output_input_add(out, in);
+    }
+  else
+    {
+      printf("Stream done\n");
+      ecore_main_loop_quit();
+    }
+
+  return EINA_TRUE;
+}
+
+Eina_Bool
+output_add(void *data)
+{
+   Ecore_Audio_Object *in = (Ecore_Audio_Object *)eina_list_data_get(inputs);
+
+   printf("Start: %s (%0.2fs)\n", ecore_audio_input_name_get(in), ecore_audio_input_length_get(in));
+   out = ecore_audio_output_add(ECORE_AUDIO_TYPE_PULSE);
+   ecore_audio_output_input_add(out, in);
+   return EINA_FALSE;
+}
+
+int
+main(int argc, const char *argv[])
+{
+   int i;
+
+   struct termios tcorig, tcnew;
+   Ecore_Audio_Object *in;
+   char *tmp, *tmp2, *val;
+
+   if (argc < 2)
+     {
+       printf("Please provide a filename\n");
+       exit(EXIT_FAILURE);
+     }
+
+   ecore_init();
+   ecore_audio_init();
+
+   ecore_event_handler_add(ECORE_AUDIO_INPUT_STARTED, _play_started, NULL);
+   ecore_event_handler_add(ECORE_AUDIO_INPUT_LOOPED, _play_started, NULL);
+   ecore_event_handler_add(ECORE_AUDIO_INPUT_ENDED, _play_finished, NULL);
+
+   for (i=1;i<argc;i++)
+     {
+       if (!strncmp(argv[i], "tone:", 5))
+         {
+            in = ecore_audio_input_add(ECORE_AUDIO_TYPE_TONE);
+            if (!in)
+              {
+                 printf("error when creating ecore audio source.\n");
+                 goto end;
+              }
+            /* The name has the format "tone:freq=x,duration=y */
+            tmp = strdup(argv[i]);
+            val = strtok_r(tmp, ":", &tmp2);
+
+            while ((val = strtok_r(NULL, ",", &tmp2)) != NULL)
+              {
+                 if (!strncmp(val, "freq=", 5))
+                   ecore_audio_input_tone_frequency_set(in, atoi(&val[5]));
+                 else if (!strncmp(val, "duration=", 9))
+                   ecore_audio_input_tone_duration_set(in, atof(&val[9]));
+              }
+            free(tmp);
+            ecore_audio_input_name_set(in, argv[i]);
+         }
+       else
+         {
+            in = ecore_audio_input_add(ECORE_AUDIO_TYPE_SNDFILE);
+            if (!in)
+              {
+                 printf("error when creating ecore audio source.\n");
+                 goto end;
+              }
+            ecore_audio_input_name_set(in, basename(argv[i]));
+            ecore_audio_input_sndfile_filename_set(in, argv[i]);
+         }
+       inputs = eina_list_append(inputs, in);
+     }
+
+
+   ecore_timer_add(1, output_add, NULL);
+
+   /* Disable canonical mode for stdin */
+   if (tcgetattr(0, &tcorig) == -1)
+     printf("Problem getting termcaps: %s\n", strerror(errno));
+
+   tcnew = tcorig;
+   tcnew.c_lflag &= ~(ICANON | ECHO);
+   if (tcsetattr(0, TCSANOW, &tcnew) == -1)
+     printf("Problem setting termcaps: %s\n", strerror(errno));
+
+   ecore_main_fd_handler_add(0, ECORE_FD_READ, handle_input, NULL, NULL, NULL);
+
+   ecore_main_loop_begin();
+
+end:
+   ecore_audio_shutdown();
+   ecore_shutdown();
+
+   /* Reset stdin */
+   if (tcsetattr(0, TCSANOW, &tcorig) == -1)
+     printf("Problem restoring termcaps: %s\n", strerror(errno));
+
+   return 0;
+}
+