forked from enlightenment/efl
ecore_audio: Make custom input example work with eo
Uses VIO to implement a custom read function Signed-off-by: Daniel Willmann <d.willmann@samsung.com>
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@ -75,7 +75,8 @@ $(top_builddir)/src/lib/eina/libeina.la \
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if HAVE_ECORE_AUDIO
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EXTRA_PROGRAMS += \
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ecore_audio_playback \
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ecore_audio_to_ogg
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ecore_audio_to_ogg \
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ecore_audio_custom
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ECORE_AUDIO_COMMON_LDADD = \
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$(top_builddir)/src/lib/ecore_audio/libecore_audio.la \
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@ -11,19 +11,22 @@
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#include <Ecore_Audio.h>
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#include <math.h>
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Ecore_Audio_Object *in = NULL;
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Ecore_Audio_Object *out = NULL;
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Eo *in = NULL;
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Eo *out = NULL;
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unsigned char volume = 255;
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int read_cb(void *user_data, void *data, int len)
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int read_cb(void *data EINA_UNUSED, Eo *eo_obj, void *buf, int len)
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{
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static long int phase1 = 0, phase2 = 0;
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static int modulation = 0;
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float *val = data;
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double volume;
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float *val = buf;
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int i;
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eo_do(eo_obj, ecore_audio_obj_volume_get(&volume));
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for(i=0; i<len/4; i++, phase1++)
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{
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if (phase1 >= 44100/(440+modulation))
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@ -33,22 +36,15 @@ int read_cb(void *user_data, void *data, int len)
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phase2++;
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}
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val[i++] = sin(2 * M_PI * (440+modulation) * (phase1) / 44100.0);
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val[i] = sin(2 * M_PI * (440+modulation) * (phase1) / 44100.0);
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val[i] = sin(2 * M_PI * (440+modulation) * (phase1) / 44100.0) * volume;
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}
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return len;
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}
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Eina_Bool
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output_add(void *data)
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{
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out = ecore_audio_output_add(ECORE_AUDIO_TYPE_PULSE);
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ecore_audio_output_input_add(out, in);
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// ecore_event_handler_add(ECORE_AUDIO_EVENT_SOURCE_DONE, _play_finished, NULL);
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return EINA_FALSE;
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}
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Ecore_Audio_Vio vio = {
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.read = read_cb,
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};
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int
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main(int argc, const char *argv[])
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@ -56,16 +52,21 @@ main(int argc, const char *argv[])
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ecore_init();
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ecore_audio_init();
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in = ecore_audio_input_add(ECORE_AUDIO_TYPE_CUSTOM);
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out = eo_add(ECORE_AUDIO_OBJ_OUT_PULSE_CLASS, NULL);
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in = eo_add(ECORE_AUDIO_OBJ_IN_CLASS, NULL);
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if (!in)
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{
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printf("error when creating ecore audio source.\n");
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goto end;
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}
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ecore_audio_input_name_set(in, "custom");
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ecore_audio_input_callback_setup(in, read_cb, NULL);
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eo_do(in, ecore_audio_obj_name_set("wail"));
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eo_do(in, ecore_audio_obj_in_samplerate_set(44100));
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eo_do(in, ecore_audio_obj_in_channels_set(1));
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eo_do(in, ecore_audio_obj_volume_set(0.7));
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eo_do(in, ecore_audio_obj_vio_set(&vio, NULL, NULL));
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ecore_timer_add(1, output_add, NULL);
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eo_do(out, ecore_audio_obj_out_input_attach(in));
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ecore_main_loop_begin();
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