mirror of
https://github.com/arcodange-org/mediabunny.git
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41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/*!
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* Copyright (c) 2026-present, Vanilagy and contributors
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include <emscripten.h>
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#include "../lib/lame.h"
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EMSCRIPTEN_KEEPALIVE
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lame_global_flags *init_lame(int number_of_channels, int sample_rate, int bitrate) {
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lame_global_flags *gfp = lame_init();
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lame_set_num_channels(gfp, number_of_channels);
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lame_set_in_samplerate(gfp, sample_rate);
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lame_set_out_samplerate(gfp, sample_rate);
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lame_set_brate(gfp, bitrate / 1000); // MP3 wants "kilobitrate"
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lame_set_bWriteVbrTag(gfp, 0);
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int ret_code = lame_init_params(gfp);
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return gfp;
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}
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EMSCRIPTEN_KEEPALIVE
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int encode_samples(lame_global_flags *gfp, short int left_buf[], short int right_buf[], int sample_count, unsigned char *dest_buf, int dest_buf_size) {
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return lame_encode_buffer(gfp, left_buf, right_buf, sample_count, dest_buf, dest_buf_size);
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}
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EMSCRIPTEN_KEEPALIVE
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int flush_lame(lame_global_flags *gfp, unsigned char *dest_buf, int dest_buf_size) {
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return lame_encode_flush(gfp, dest_buf, dest_buf_size);
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}
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EMSCRIPTEN_KEEPALIVE
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void close_lame(lame_global_flags *gfp) {
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lame_close(gfp);
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}
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