2022-08-08 04:57:24 +03:00
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#include <furi.h>
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#include <furi_hal.h>
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#include <cli/cli.h>
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#include <gui/gui.h>
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#include <stm32wbxx_ll_dma.h>
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#include <dialogs/dialogs.h>
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#include <notification/notification_messages.h>
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#include <gui/view_dispatcher.h>
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#include <toolbox/stream/file_stream.h>
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#include "wav_player_hal.h"
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#include "wav_parser.h"
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#include "wav_player_view.h"
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#include <math.h>
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#define TAG "WavPlayer"
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#define WAVPLAYER_FOLDER "/ext/wav_player"
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static bool open_wav_stream(Stream* stream) {
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DialogsApp* dialogs = furi_record_open("dialogs");
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bool result = false;
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string_t path;
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string_init(path);
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string_set_str(path, WAVPLAYER_FOLDER);
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2022-09-14 21:04:04 +03:00
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DialogsFileBrowserOptions browser_options;
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dialog_file_browser_set_basic_options(&browser_options, ".wav", &I_music_10px);
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browser_options.hide_ext = false;
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bool ret = dialog_file_browser_show(dialogs, path, path, &browser_options);
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2022-08-08 04:57:24 +03:00
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furi_record_close("dialogs");
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if(ret) {
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if(!file_stream_open(stream, string_get_cstr(path), FSAM_READ, FSOM_OPEN_EXISTING)) {
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FURI_LOG_E(TAG, "Cannot open file \"%s\"", string_get_cstr(path));
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} else {
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result = true;
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}
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}
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string_clear(path);
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return result;
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}
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typedef enum {
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WavPlayerEventHalfTransfer,
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WavPlayerEventFullTransfer,
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WavPlayerEventCtrlVolUp,
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WavPlayerEventCtrlVolDn,
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WavPlayerEventCtrlMoveL,
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WavPlayerEventCtrlMoveR,
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WavPlayerEventCtrlOk,
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WavPlayerEventCtrlBack,
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} WavPlayerEventType;
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typedef struct {
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WavPlayerEventType type;
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} WavPlayerEvent;
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static void wav_player_dma_isr(void* ctx) {
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FuriMessageQueue* event_queue = ctx;
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// half of transfer
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if(LL_DMA_IsActiveFlag_HT1(DMA1)) {
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LL_DMA_ClearFlag_HT1(DMA1);
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// fill first half of buffer
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WavPlayerEvent event = {.type = WavPlayerEventHalfTransfer};
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furi_message_queue_put(event_queue, &event, 0);
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}
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// transfer complete
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if(LL_DMA_IsActiveFlag_TC1(DMA1)) {
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LL_DMA_ClearFlag_TC1(DMA1);
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// fill second half of buffer
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WavPlayerEvent event = {.type = WavPlayerEventFullTransfer};
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furi_message_queue_put(event_queue, &event, 0);
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}
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}
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typedef struct {
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Storage* storage;
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Stream* stream;
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WavParser* parser;
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uint16_t* sample_buffer;
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uint8_t* tmp_buffer;
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size_t samples_count_half;
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size_t samples_count;
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FuriMessageQueue* queue;
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float volume;
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bool play;
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WavPlayerView* view;
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ViewDispatcher* view_dispatcher;
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Gui* gui;
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NotificationApp* notification;
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} WavPlayerApp;
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static WavPlayerApp* app_alloc() {
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WavPlayerApp* app = malloc(sizeof(WavPlayerApp));
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app->samples_count_half = 1024 * 4;
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app->samples_count = app->samples_count_half * 2;
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2022-08-13 17:58:46 +03:00
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app->storage = furi_record_open(RECORD_STORAGE);
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2022-08-08 04:57:24 +03:00
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app->stream = file_stream_alloc(app->storage);
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app->parser = wav_parser_alloc();
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app->sample_buffer = malloc(sizeof(uint16_t) * app->samples_count);
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app->tmp_buffer = malloc(sizeof(uint8_t) * app->samples_count);
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app->queue = furi_message_queue_alloc(10, sizeof(WavPlayerEvent));
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app->volume = 10.0f;
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app->play = true;
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2022-08-13 17:58:46 +03:00
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app->gui = furi_record_open(RECORD_GUI);
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2022-08-08 04:57:24 +03:00
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app->view_dispatcher = view_dispatcher_alloc();
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app->view = wav_player_view_alloc();
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view_dispatcher_add_view(app->view_dispatcher, 0, wav_player_view_get_view(app->view));
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view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);
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view_dispatcher_switch_to_view(app->view_dispatcher, 0);
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app->notification = furi_record_open("notification");
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notification_message(app->notification, &sequence_display_backlight_enforce_on);
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return app;
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}
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static void app_free(WavPlayerApp* app) {
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view_dispatcher_remove_view(app->view_dispatcher, 0);
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view_dispatcher_free(app->view_dispatcher);
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wav_player_view_free(app->view);
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2022-08-13 17:58:46 +03:00
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furi_record_close(RECORD_GUI);
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2022-08-08 04:57:24 +03:00
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furi_message_queue_free(app->queue);
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free(app->tmp_buffer);
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free(app->sample_buffer);
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wav_parser_free(app->parser);
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stream_free(app->stream);
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2022-08-13 17:58:46 +03:00
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furi_record_close(RECORD_STORAGE);
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2022-08-08 04:57:24 +03:00
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notification_message(app->notification, &sequence_display_backlight_enforce_auto);
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furi_record_close("notification");
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free(app);
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}
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// TODO: that works only with 8-bit 2ch audio
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static bool fill_data(WavPlayerApp* app, size_t index) {
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uint16_t* sample_buffer_start = &app->sample_buffer[index];
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size_t count = stream_read(app->stream, app->tmp_buffer, app->samples_count);
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for(size_t i = count; i < app->samples_count; i++) {
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app->tmp_buffer[i] = 0;
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}
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for(size_t i = 0; i < app->samples_count; i += 2) {
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float data = app->tmp_buffer[i];
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data -= UINT8_MAX / 2; // to signed
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data /= UINT8_MAX / 2; // scale -1..1
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data *= app->volume; // volume
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data = tanhf(data); // hyperbolic tangent limiter
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data *= UINT8_MAX / 2; // scale -128..127
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data += UINT8_MAX / 2; // to unsigned
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if(data < 0) {
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data = 0;
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}
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if(data > 255) {
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data = 255;
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}
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sample_buffer_start[i / 2] = data;
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}
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wav_player_view_set_data(app->view, sample_buffer_start, app->samples_count_half);
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return count != app->samples_count;
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}
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static void ctrl_callback(WavPlayerCtrl ctrl, void* ctx) {
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FuriMessageQueue* event_queue = ctx;
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WavPlayerEvent event;
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switch(ctrl) {
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case WavPlayerCtrlVolUp:
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event.type = WavPlayerEventCtrlVolUp;
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furi_message_queue_put(event_queue, &event, 0);
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break;
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case WavPlayerCtrlVolDn:
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event.type = WavPlayerEventCtrlVolDn;
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furi_message_queue_put(event_queue, &event, 0);
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break;
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case WavPlayerCtrlMoveL:
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event.type = WavPlayerEventCtrlMoveL;
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furi_message_queue_put(event_queue, &event, 0);
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break;
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case WavPlayerCtrlMoveR:
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event.type = WavPlayerEventCtrlMoveR;
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furi_message_queue_put(event_queue, &event, 0);
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break;
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case WavPlayerCtrlOk:
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event.type = WavPlayerEventCtrlOk;
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furi_message_queue_put(event_queue, &event, 0);
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break;
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case WavPlayerCtrlBack:
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event.type = WavPlayerEventCtrlBack;
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furi_message_queue_put(event_queue, &event, 0);
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break;
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default:
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break;
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}
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}
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static void app_run(WavPlayerApp* app) {
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if(!open_wav_stream(app->stream)) return;
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if(!wav_parser_parse(app->parser, app->stream)) return;
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wav_player_view_set_volume(app->view, app->volume);
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wav_player_view_set_start(app->view, wav_parser_get_data_start(app->parser));
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wav_player_view_set_current(app->view, stream_tell(app->stream));
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wav_player_view_set_end(app->view, wav_parser_get_data_end(app->parser));
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wav_player_view_set_play(app->view, app->play);
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wav_player_view_set_context(app->view, app->queue);
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wav_player_view_set_ctrl_callback(app->view, ctrl_callback);
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bool eof = fill_data(app, 0);
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eof = fill_data(app, app->samples_count_half);
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wav_player_speaker_init();
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wav_player_dma_init((uint32_t)app->sample_buffer, app->samples_count);
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furi_hal_interrupt_set_isr(FuriHalInterruptIdDma1Ch1, wav_player_dma_isr, app->queue);
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wav_player_dma_start();
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wav_player_speaker_start();
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WavPlayerEvent event;
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while(1) {
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if(furi_message_queue_get(app->queue, &event, FuriWaitForever) == FuriStatusOk) {
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if(event.type == WavPlayerEventHalfTransfer) {
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eof = fill_data(app, 0);
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wav_player_view_set_current(app->view, stream_tell(app->stream));
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if(eof) {
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stream_seek(
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app->stream,
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wav_parser_get_data_start(app->parser),
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StreamOffsetFromStart);
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}
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} else if(event.type == WavPlayerEventFullTransfer) {
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eof = fill_data(app, app->samples_count_half);
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wav_player_view_set_current(app->view, stream_tell(app->stream));
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if(eof) {
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stream_seek(
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app->stream,
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wav_parser_get_data_start(app->parser),
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StreamOffsetFromStart);
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}
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} else if(event.type == WavPlayerEventCtrlVolUp) {
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if(app->volume < 9.9) app->volume += 0.4;
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wav_player_view_set_volume(app->view, app->volume);
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} else if(event.type == WavPlayerEventCtrlVolDn) {
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if(app->volume > 0.01) app->volume -= 0.4;
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wav_player_view_set_volume(app->view, app->volume);
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} else if(event.type == WavPlayerEventCtrlMoveL) {
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int32_t seek = stream_tell(app->stream) - wav_parser_get_data_start(app->parser);
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seek = MIN(seek, (int32_t)(wav_parser_get_data_len(app->parser) / (size_t)100));
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stream_seek(app->stream, -seek, StreamOffsetFromCurrent);
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wav_player_view_set_current(app->view, stream_tell(app->stream));
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} else if(event.type == WavPlayerEventCtrlMoveR) {
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int32_t seek = wav_parser_get_data_end(app->parser) - stream_tell(app->stream);
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seek = MIN(seek, (int32_t)(wav_parser_get_data_len(app->parser) / (size_t)100));
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stream_seek(app->stream, seek, StreamOffsetFromCurrent);
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wav_player_view_set_current(app->view, stream_tell(app->stream));
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} else if(event.type == WavPlayerEventCtrlOk) {
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app->play = !app->play;
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wav_player_view_set_play(app->view, app->play);
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if(!app->play) {
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wav_player_speaker_stop();
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} else {
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wav_player_speaker_start();
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}
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} else if(event.type == WavPlayerEventCtrlBack) {
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break;
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}
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}
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}
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wav_player_speaker_stop();
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wav_player_dma_stop();
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furi_hal_interrupt_set_isr(FuriHalInterruptIdDma1Ch1, NULL, NULL);
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}
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int32_t wav_player_app(void* p) {
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UNUSED(p);
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WavPlayerApp* app = app_alloc();
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2022-08-13 17:58:46 +03:00
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Storage* storage = furi_record_open(RECORD_STORAGE);
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2022-08-08 04:57:24 +03:00
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if(!storage_simply_mkdir(storage, WAVPLAYER_FOLDER)) {
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FURI_LOG_E(TAG, "Could not create folder %s", WAVPLAYER_FOLDER);
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}
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2022-08-13 17:58:46 +03:00
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furi_record_close(RECORD_STORAGE);
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2022-08-08 04:57:24 +03:00
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app_run(app);
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app_free(app);
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return 0;
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}
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