mirror of
https://github.com/mackron/miniaudio.git
synced 2026-04-22 16:24:04 +02:00
David Reid
9763fa626b
This adds support for having a sound fade in when it is started and fade out when it is stopped. This commit does not yet include support for fading out when the sound approaches the end - it only fades out when explicitly stopped with ma_sound_stop(). The fade time is set in milliseconds. This commit includes a new effect called ma_fader, but it currently only supports f32 formats. Support for other formats will be added in the future.
102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
#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 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 | MA_DATA_SOURCE_FLAG_STREAM, NULL, &sound);
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if (result != MA_SUCCESS) {
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printf("Failed to load sound: %s\n", argv[1]);
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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, 5000000);*/
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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, 4000);
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ma_sleep(5000);
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ma_engine_sound_stop(&engine, &sound, 4000);
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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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