Play from memory buffer using high level API

[oakes]

I'd like to use the high level API, but i need to play using data in memory, not on the disk, so i can't use ma_engine_play_sound. With the low level API i would use ma_decoder_init_memory, but is this possible with the high level API? I know there is ma_sound_init_from_data_source but it's not clear how to use that to read from a memory buffer.

[mackron]

Yep, this is possible. A ma_decoder is a data source, so you can just plug it straight into ma_sound_init_from_data_source().

ma_decoder decoder;
ma_decoder_init_memory(..., &decoder);

...

ma_sound_init_from_data_source(pEngine, &decoder, ...);

Only problem is you'll need to maintain a separate ma_decoder object along with your ma_sound object.

[mackron]

Another thing you can do is register your raw audio data with the resource manager and associate it with an arbitrary string (doesn't have to be an actual file path):

ma_resource_manager_register_encoded_data(ma_engine_get_resource_manager(pEngine), "my_sound", pFileData, fileSize);

...

ma_sound_init_from_file(pEngine, "my_sound", ...);

This will save you from having to manage a separate ma_decoder for each sound.

[SelfishOlex]

I just tried that I got MA_INVALID_FILE(-10).

miniaudio - v0.11.9 - 2022-04-20

[mackron]

That's returned when you've passed in a corrupt file, or the file format is not supported by miniaudio. Built-in support exists for WAV, FLAC and MP3. Vorbis is done via stb_vorbis which is only enabled if you include the header section of stb_vorbis before the implementation of miniaudio (see the bottom of the readme for more info).

If you're sure you've got a valid file try the simple_playback example (pass in the path of your file via the command line when you run it). That's a known working example.

[SelfishOlex]

Yep, you are right! I just found I have mismanaged the file content on the way to miniaudio. Thanks!

[SelfishOlex]

It works now, siiick!