mirror of
https://github.com/mackron/miniaudio.git
synced 2026-04-22 00:06:59 +02:00
David Reid
213ee9dc52
This enables early playback of the sound while the remainder of the sound is loaded in the background. When the first page is loaded, the sound can start playback. While it's playing, the rest of the sound is loaded in a background thread. In addition, sounds no longer need to wait for every sound prior to it in the queue to fully decode before it is able to start - it only needs to wait for the first page of each of the queued sounds to decode. This enables much fairer prioritization of asynchronously loaded sounds. This paged decoding system is *not* a true streaming solution for long sounds. Support for true streaming will be added in future commits. This commit is only concerned with filling in-memory buffers containing the whole sound in an asynchronous manner.
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
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#define DR_FLAC_IMPLEMENTATION
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#include "../extras/dr_flac.h" /* Enables FLAC decoding. */
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#define DR_MP3_IMPLEMENTATION
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#include "../extras/dr_mp3.h" /* Enables MP3 decoding. */
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#define DR_WAV_IMPLEMENTATION
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#include "../extras/dr_wav.h" /* Enables WAV decoding. */
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#define STB_VORBIS_HEADER_ONLY
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#include "../extras/stb_vorbis.c" /* Enables Vorbis decoding. */
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#define MA_DEBUG_OUTPUT
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#define MA_IMPLEMENTATION
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#include "../miniaudio.h"
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#include "ma_engine.h"
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int main(int argc, char** argv)
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{
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ma_result result;
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ma_engine engine;
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ma_sound sound;
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if (argc < 2) {
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printf("No input file.\n");
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return -1;
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}
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result = ma_engine_init(NULL, &engine);
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if (result != MA_SUCCESS) {
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printf("Failed to initialize audio engine.\n");
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return -1;
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}
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#if 0
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ma_resource_manager_data_node* pDataNode;
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ma_event* pTestEvent;
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ma_event_alloc_and_init(&pTestEvent, NULL);
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result = ma_resource_manager_create_data_node(engine.pResourceManager, argv[1], ma_resource_manager_data_node_type_decoded, pTestEvent, &pDataNode);
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if (result != MA_SUCCESS) {
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printf("FAILED\n");
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}
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ma_event_wait(pTestEvent);
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ma_event_uninit_and_free(pTestEvent, NULL);
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#endif
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#if 1
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result = ma_engine_sound_init_from_file(&engine, argv[1], MA_DATA_SOURCE_FLAG_DECODE | MA_DATA_SOURCE_FLAG_ASYNC, NULL, &sound);
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if (result != MA_SUCCESS) {
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ma_engine_uninit(&engine);
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return -1;
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}
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/*ma_data_source_seek_to_pcm_frame(sound.pDataSource, 1000000);*/
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ma_engine_sound_set_volume(&engine, &sound, 0.25f);
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ma_engine_sound_set_pitch(&engine, &sound, 1.0f);
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ma_engine_sound_set_pan(&engine, &sound, 0.0f);
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ma_engine_sound_set_looping(&engine, &sound, MA_TRUE);
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ma_engine_sound_start(&engine, &sound);
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#endif
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#if 1
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/*ma_engine_play_sound(&engine, argv[1], NULL);*/
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ma_engine_play_sound(&engine, argv[2], NULL);
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ma_engine_play_sound(&engine, argv[3], NULL);
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#endif
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#if 0
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float pitch = 1;
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float pitchStep = 0.01f;
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float pitchMin = 0.125f;
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float pitchMax = 8;
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for (;;) {
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pitch += pitchStep;
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if (pitch < pitchMin) {
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pitch = pitchMin;
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pitchStep = -pitchStep;
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}
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if (pitch > pitchMax) {
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pitch = pitchMax;
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pitchStep = -pitchStep;
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}
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//ma_engine_sound_set_pitch(&engine, &sound, pitch);
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ma_sleep(1);
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}
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#endif
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printf("Press Enter to quit...");
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getchar();
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ma_engine_sound_uninit(&engine, &sound);
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ma_engine_uninit(&engine);
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return 0;
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}
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/* stb_vorbis implementation must come after the implementation of miniaudio. */
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#if defined(_MSC_VER) && !defined(__clang__)
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#pragma warning(push)
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#pragma warning(disable:4100) /* unreferenced formal parameter */
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#pragma warning(disable:4244) /* '=': conversion from '' to '', possible loss of data */
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#pragma warning(disable:4245) /* '=': conversion from '' to '', signed/unsigned mismatch */
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#pragma warning(disable:4456) /* declaration of '' hides previous local declaration */
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#pragma warning(disable:4457) /* declaration of '' hides function parameter */
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#pragma warning(disable:4701) /* potentially uninitialized local variable '' used */
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#else
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#endif
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#undef STB_VORBIS_HEADER_ONLY
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#include "../extras/stb_vorbis.c"
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#if defined(_MSC_VER) && !defined(__clang__)
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#pragma warning(pop)
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#else
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#endif
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