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mob_audio_capture

0.1.0
0.1.0

Global device-audio capture (Android MediaProjection/AudioPlaybackCapture) for Mob apps — a test-environment probe that meters audio other apps/native players produce, which the in-app Mob.Audio probes cannot reach

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mob_audio_capture priv native ios mob_audio_capture_nif.m
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priv/native/ios/mob_audio_capture_nif.m 

// mob_audio_capture_nif (iOS) — unsupported stub.

//

// iOS has no public API to capture another app's or the system's audio output (the

// sandbox forbids it; ReplayKit captures the screen + the app's OWN audio only). So

// device-output capture is Android-only. These NIFs register the same names as the

// Android (zig) build and return :unsupported_on_platform so MobAudioCapture degrades

// cleanly (output_level/0 → {:error, :unsupported_on_platform}) instead of raising

// nif_not_loaded.

#include <erl_nif.h>



static ERL_NIF_TERM nif_audio_capture_start(ErlNifEnv *env, int argc,

                                            const ERL_NIF_TERM argv[]) {

    (void)argc;

    (void)argv;

    return enif_make_atom(env, "unsupported_on_platform");

}



static ERL_NIF_TERM nif_audio_capture_stop(ErlNifEnv *env, int argc,

                                           const ERL_NIF_TERM argv[]) {

    (void)argc;

    (void)argv;

    return enif_make_atom(env, "unsupported_on_platform");

}



static ERL_NIF_TERM nif_audio_capture_level(ErlNifEnv *env, int argc,

                                            const ERL_NIF_TERM argv[]) {

    (void)argc;

    (void)argv;

    return enif_make_atom(env, "unsupported_on_platform");

}



static ErlNifFunc nif_funcs[] = {

    {"audio_capture_start", 1, nif_audio_capture_start, 0},

    {"audio_capture_stop", 0, nif_audio_capture_stop, 0},

    {"audio_capture_level", 0, nif_audio_capture_level, 0},

};



ERL_NIF_INIT(mob_audio_capture_nif, nif_funcs, NULL, NULL, NULL, NULL)