godot/modules/opus/SCsub

#!/usr/bin/env python

Import("env")
Import("env_modules")

# Only kept to build the thirdparty library used by the webm module.
# AudioStreamOpus was dropped in 3.0 due to incompatibility with the new audio
# engine. If you want to port it, fetch it from the Git history.

env_opus = env_modules.Clone()

# Thirdparty source files

thirdparty_obj = []

# Thirdparty source files
if env["builtin_opus"]:
    thirdparty_dir = "#thirdparty/opus/"

    thirdparty_sources = [
        # Sync with opus_sources.mk
        "opus.c",
        "opus_decoder.c",
        "opus_encoder.c",
        "opus_multistream.c",
        "opus_multistream_encoder.c",
        "opus_multistream_decoder.c",
        "repacketizer.c",
        "analysis.c",
        "mlp.c",
        "mlp_data.c",
        # Sync with libopusfile Makefile.am
        "info.c",
        "internal.c",
        "opusfile.c",
        "stream.c",
        # Sync with celt_sources.mk
        "celt/bands.c",
        "celt/celt.c",
        "celt/celt_encoder.c",
        "celt/celt_decoder.c",
        "celt/cwrs.c",
        "celt/entcode.c",
        "celt/entdec.c",
        "celt/entenc.c",
        "celt/kiss_fft.c",
        "celt/laplace.c",
        "celt/mathops.c",
        "celt/mdct.c",
        "celt/modes.c",
        "celt/pitch.c",
        "celt/celt_lpc.c",
        "celt/quant_bands.c",
        "celt/rate.c",
        "celt/vq.c",
        # "celt/arm/arm_celt_map.c",
        # "celt/arm/armcpu.c",
        # "celt/arm/celt_ne10_fft.c",
        # "celt/arm/celt_ne10_mdct.c",
        # "celt/arm/celt_neon_intr.c",
        # Sync with silk_sources.mk
        "silk/CNG.c",
        "silk/code_signs.c",
        "silk/init_decoder.c",
        "silk/decode_core.c",
        "silk/decode_frame.c",
        "silk/decode_parameters.c",
        "silk/decode_indices.c",
        "silk/decode_pulses.c",
        "silk/decoder_set_fs.c",
        "silk/dec_API.c",
        "silk/enc_API.c",
        "silk/encode_indices.c",
        "silk/encode_pulses.c",
        "silk/gain_quant.c",
        "silk/interpolate.c",
        "silk/LP_variable_cutoff.c",
        "silk/NLSF_decode.c",
        "silk/NSQ.c",
        "silk/NSQ_del_dec.c",
        "silk/PLC.c",
        "silk/shell_coder.c",
        "silk/tables_gain.c",
        "silk/tables_LTP.c",
        "silk/tables_NLSF_CB_NB_MB.c",
        "silk/tables_NLSF_CB_WB.c",
        "silk/tables_other.c",
        "silk/tables_pitch_lag.c",
        "silk/tables_pulses_per_block.c",
        "silk/VAD.c",
        "silk/control_audio_bandwidth.c",
        "silk/quant_LTP_gains.c",
        "silk/VQ_WMat_EC.c",
        "silk/HP_variable_cutoff.c",
        "silk/NLSF_encode.c",
        "silk/NLSF_VQ.c",
        "silk/NLSF_unpack.c",
        "silk/NLSF_del_dec_quant.c",
        "silk/process_NLSFs.c",
        "silk/stereo_LR_to_MS.c",
        "silk/stereo_MS_to_LR.c",
        "silk/check_control_input.c",
        "silk/control_SNR.c",
        "silk/init_encoder.c",
        "silk/control_codec.c",
        "silk/A2NLSF.c",
        "silk/ana_filt_bank_1.c",
        "silk/biquad_alt.c",
        "silk/bwexpander_32.c",
        "silk/bwexpander.c",
        "silk/debug.c",
        "silk/decode_pitch.c",
        "silk/inner_prod_aligned.c",
        "silk/lin2log.c",
        "silk/log2lin.c",
        "silk/LPC_analysis_filter.c",
        "silk/LPC_inv_pred_gain.c",
        "silk/table_LSF_cos.c",
        "silk/NLSF2A.c",
        "silk/NLSF_stabilize.c",
        "silk/NLSF_VQ_weights_laroia.c",
        "silk/pitch_est_tables.c",
        "silk/resampler.c",
        "silk/resampler_down2_3.c",
        "silk/resampler_down2.c",
        "silk/resampler_private_AR2.c",
        "silk/resampler_private_down_FIR.c",
        "silk/resampler_private_IIR_FIR.c",
        "silk/resampler_private_up2_HQ.c",
        "silk/resampler_rom.c",
        "silk/sigm_Q15.c",
        "silk/sort.c",
        "silk/sum_sqr_shift.c",
        "silk/stereo_decode_pred.c",
        "silk/stereo_encode_pred.c",
        "silk/stereo_find_predictor.c",
        "silk/stereo_quant_pred.c",
    ]

    opus_sources_silk = []

    if env["platform"] in ["android", "iphone", "javascript"]:
        env_opus.Append(CPPDEFINES=["FIXED_POINT"])
        opus_sources_silk = [
            "silk/fixed/LTP_analysis_filter_FIX.c",
            "silk/fixed/LTP_scale_ctrl_FIX.c",
            "silk/fixed/corrMatrix_FIX.c",
            "silk/fixed/encode_frame_FIX.c",
            "silk/fixed/find_LPC_FIX.c",
            "silk/fixed/find_LTP_FIX.c",
            "silk/fixed/find_pitch_lags_FIX.c",
            "silk/fixed/find_pred_coefs_FIX.c",
            "silk/fixed/noise_shape_analysis_FIX.c",
            "silk/fixed/prefilter_FIX.c",
            "silk/fixed/process_gains_FIX.c",
            "silk/fixed/regularize_correlations_FIX.c",
            "silk/fixed/residual_energy16_FIX.c",
            "silk/fixed/residual_energy_FIX.c",
            "silk/fixed/solve_LS_FIX.c",
            "silk/fixed/warped_autocorrelation_FIX.c",
            "silk/fixed/apply_sine_window_FIX.c",
            "silk/fixed/autocorr_FIX.c",
            "silk/fixed/burg_modified_FIX.c",
            "silk/fixed/k2a_FIX.c",
            "silk/fixed/k2a_Q16_FIX.c",
            "silk/fixed/pitch_analysis_core_FIX.c",
            "silk/fixed/vector_ops_FIX.c",
            "silk/fixed/schur64_FIX.c",
            "silk/fixed/schur_FIX.c",
        ]
    else:
        opus_sources_silk = [
            "silk/float/apply_sine_window_FLP.c",
            "silk/float/corrMatrix_FLP.c",
            "silk/float/encode_frame_FLP.c",
            "silk/float/find_LPC_FLP.c",
            "silk/float/find_LTP_FLP.c",
            "silk/float/find_pitch_lags_FLP.c",
            "silk/float/find_pred_coefs_FLP.c",
            "silk/float/LPC_analysis_filter_FLP.c",
            "silk/float/LTP_analysis_filter_FLP.c",
            "silk/float/LTP_scale_ctrl_FLP.c",
            "silk/float/noise_shape_analysis_FLP.c",
            "silk/float/prefilter_FLP.c",
            "silk/float/process_gains_FLP.c",
            "silk/float/regularize_correlations_FLP.c",
            "silk/float/residual_energy_FLP.c",
            "silk/float/solve_LS_FLP.c",
            "silk/float/warped_autocorrelation_FLP.c",
            "silk/float/wrappers_FLP.c",
            "silk/float/autocorrelation_FLP.c",
            "silk/float/burg_modified_FLP.c",
            "silk/float/bwexpander_FLP.c",
            "silk/float/energy_FLP.c",
            "silk/float/inner_product_FLP.c",
            "silk/float/k2a_FLP.c",
            "silk/float/levinsondurbin_FLP.c",
            "silk/float/LPC_inv_pred_gain_FLP.c",
            "silk/float/pitch_analysis_core_FLP.c",
            "silk/float/scale_copy_vector_FLP.c",
            "silk/float/scale_vector_FLP.c",
            "silk/float/schur_FLP.c",
            "silk/float/sort_FLP.c",
        ]

    thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources + opus_sources_silk]

    # also requires libogg
    if env["builtin_libogg"]:
        env_opus.Prepend(CPPPATH=["#thirdparty/libogg"])

    env_opus.Append(CPPDEFINES=["HAVE_CONFIG_H"])

    thirdparty_include_paths = [
        "",
        "celt",
        "opus",
        "silk",
        "silk/fixed",
        "silk/float",
    ]
    env_opus.Prepend(CPPPATH=[thirdparty_dir + "/" + dir for dir in thirdparty_include_paths])

    if env["platform"] == "android":
        if "android_arch" in env and env["android_arch"] == "armv7":
            env_opus.Append(CPPDEFINES=["OPUS_ARM_OPT"])
        elif "android_arch" in env and env["android_arch"] == "arm64v8":
            env_opus.Append(CPPDEFINES=["OPUS_ARM64_OPT"])
    elif env["platform"] == "iphone":
        if "arch" in env and env["arch"] == "arm":
            env_opus.Append(CPPDEFINES=["OPUS_ARM_OPT"])
        elif "arch" in env and env["arch"] == "arm64":
            env_opus.Append(CPPDEFINES=["OPUS_ARM64_OPT"])
    elif env["platform"] == "osx":
        if "arch" in env and env["arch"] == "arm64":
            env_opus.Append(CPPDEFINES=["OPUS_ARM64_OPT"])

    env_thirdparty = env_opus.Clone()
    env_thirdparty.disable_warnings()
    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
    env.modules_sources += thirdparty_obj


# Godot source files

module_obj = []

env_opus.add_source_files(module_obj, "*.cpp")
env.modules_sources += module_obj

# Needed to force rebuilding the module files when the thirdparty library is updated.
env.Depends(module_obj, thirdparty_obj)