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105 lines
3.6 KiB
105 lines
3.6 KiB
/**
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <string.h>
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#include <stdlib.h>
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#define REF_COUNT 1
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#define DECODE_PACKET 1
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extern "C" {
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#include <Tremolo/codec_internal.h>
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int _vorbis_unpack_books(vorbis_info *vi, oggpack_buffer *opb);
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int _vorbis_unpack_info(vorbis_info *vi, oggpack_buffer *opb);
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int _vorbis_unpack_comment(vorbis_comment *vc, oggpack_buffer *opb);
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}
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const uint8_t packInfoData[] = { 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0xBB, 0x00,
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0x00, 0x00, 0x00, 0x0D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0xBB, 0x01, 0xFF, 0xFF, 0xFF, 0xFF };
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unsigned char unpackBookData[] = { 0x00, 0x42, 0x43, 0x56, 0x1E, 0x00, 0x10,
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0x00, 0x00, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x10, 0x0A, 0xFF, 0x00, 0x00,
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0x00, 0x06, 0xD0, 0x00, 0x00, 0x00, 0x7F, 0x00, 0x1D, 0x00, 0x00, 0x00,
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0x2C, 0x00, 0x03, 0x3C, 0x51, 0x04, 0x34, 0x4F, 0x04, 0x00, 0x40, 0x00,
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0x00, 0x00, 0x00, 0x00, 0xCB, 0x00, 0x40, 0x00, 0x00, 0x01, 0x4F, 0xF4,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0xFF, 0xFF, 0xFF, 0xFF };
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unsigned char bufData[] = { 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xE7,
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0x00, 0x00, 0xE9, 0x00 };
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static void makeBitReader(const void *data, size_t size, ogg_buffer *buf,
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ogg_reference *ref, oggpack_buffer *bits) {
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buf->data = (uint8_t *) data;
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buf->size = size;
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buf->refcount = REF_COUNT;
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ref->buffer = buf;
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ref->length = size;
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oggpack_readinit(bits, ref);
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}
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int main() {
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ogg_buffer buf;
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ogg_reference ref;
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oggpack_buffer bits;
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memset(&buf, 0, sizeof(ogg_buffer));
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memset(&ref, 0, sizeof(ogg_reference));
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memset(&bits, 0, sizeof(oggpack_buffer));
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makeBitReader(packInfoData, sizeof(packInfoData), &buf, &ref, &bits);
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vorbis_info *mVi = new vorbis_info;
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vorbis_info_init(mVi);
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int ret = _vorbis_unpack_info(mVi, &bits);
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if (!ret) {
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memset(&buf, 0, sizeof(ogg_buffer));
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memset(&ref, 0, sizeof(ogg_reference));
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memset(&bits, 0, sizeof(oggpack_buffer));
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makeBitReader(unpackBookData, sizeof(unpackBookData), &buf, &ref,
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&bits);
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ret = _vorbis_unpack_books(mVi, &bits);
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if (!ret) {
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ogg_packet pack;
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memset(&pack, 0, sizeof(ogg_packet));
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memset(&buf, 0, sizeof(ogg_buffer));
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memset(&ref, 0, sizeof(ogg_reference));
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vorbis_dsp_state *mState = new vorbis_dsp_state;
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vorbis_dsp_init(mState, mVi);
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buf.data = bufData;
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buf.size = sizeof(bufData);
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buf.refcount = REF_COUNT;
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ref.buffer = &buf;
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ref.length = buf.size;
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pack.packet = &ref;
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pack.bytes = ref.length;
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vorbis_dsp_synthesis(mState, &pack, DECODE_PACKET);
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}
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}
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return EXIT_SUCCESS;
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}
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