请教：MTK平台停止播放剪辑

[BuleRiver]

大家好：我现在使用函数mdi_audio_play_string_with_vol_path_non_block()播放mp3的片段，播放的还可以，但是当我想停止播放的时候，调用了函数mdi_audio_stop_string()或者mdi_audio_stop_all()，并没有停止播放，这是什么原因呢？基本的代码如下：

FS_HANDLE g_file_handle;
#define buf_size	(256 * 1024)
U8 audio_data[buf_size];

void stop_play_mp3_string(void)
{
	mdi_audio_stop_all();
	FS_Close(g_file_handle);
	GoBackHistory(); 
}

/* continue play mp3 string */
void play_mp3_string_continue(mdi_result result)
{
	UINT len = 0;

	if (FS_NO_ERROR != FS_Read(g_file_handle, audio_data, buf_size, &len))
	{
		DisplayPopup((U8*)L"Read File Failed", IMG_GLOBAL_OK, 1, 5000, 13);
		return;
	}

	if (len <= 0)
	{
		return;
	}
	else
	{
		mdi_audio_play_string_with_vol_path_non_block(audio_data, buf_size, 
			MDI_FORMAT_DAF, DEVICE_AUDIO_PLAY_ONCE, NULL, play_mp3_string_continue, 
			(U8)6, MDI_DEVICE_SPEAKER_BOTH);
	}
}

/* start to play mp3 string */
void start_play_mp3_string(void)
{
	UINT len;

	if ((g_file_handle = FS_Open(L"D:\\text\\a.mp3", FS_READ_ONLY)) < 0)
	{
		DisplayPopup((U8*)L"Open File Failed", IMG_GLOBAL_OK, 1, 5000, 13);
		return;
	}

	if (FS_NO_ERROR != FS_Read(g_file_handle, audio_data, buf_size, &len))
	{
		DisplayPopup((U8*)L"Read File Failed", IMG_GLOBAL_OK, 1, 5000, 13);
		FS_Close(g_file_handle);
		return;
	}

	mdi_audio_play_string_with_vol_path_non_block(audio_data, buf_size, 
			MDI_FORMAT_DAF, DEVICE_AUDIO_PLAY_ONCE, NULL, play_mp3_string_continue, 
			(U8)6, MDI_DEVICE_SPEAKER_BOTH);
}

void audio_play_entry(void)
{
	EntryNewScreen(MAIN_MENU_SCREENID, NULL, audio_play_entry, NULL);
	clear_screen();
	gui_set_text_color(UI_COLOR_RED);
	gui_move_text_cursor(50, 50);
	gui_print_text(L"Audio Player");
	gui_move_text_cursor(25, 100);
	gui_print_text(L"Press left key to play");
	gui_move_text_cursor(10, 120);
	gui_print_text(L"Press right key to pause/resume");
	gui_BLT_double_buffer(0, 0, UI_device_width - 1, UI_device_height - 1);

	// 左键
	SetKeyHandler(start_play_mp3_string, KEY_LSK, KEY_EVENT_DOWN);
	// 右键
	SetKeyHandler(stop_play_mp3_string, KEY_RSK, KEY_EVENT_DOWN);
}

[BuleRiver]

问题已经解决。