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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <assert.h>
#include <audio_utils/format.h>
#include <audio_utils/primitives.h>
void memcpy_by_audio_format(void *dst, audio_format_t dst_format,
const void *src, audio_format_t src_format, size_t count)
{
/* default cases for error falls through to assert(false) below. */
if (dst_format == src_format) {
switch (dst_format) {
case AUDIO_FORMAT_PCM_16_BIT:
case AUDIO_FORMAT_PCM_FLOAT:
case AUDIO_FORMAT_PCM_8_BIT:
case AUDIO_FORMAT_PCM_24_BIT_PACKED:
case AUDIO_FORMAT_PCM_32_BIT:
case AUDIO_FORMAT_PCM_8_24_BIT:
if (dst != src) {
// TODO: should assert if memory regions overlap.
memcpy(dst, src, count * audio_bytes_per_sample(dst_format));
}
return;
default:
break;
}
}
switch (dst_format) {
case AUDIO_FORMAT_PCM_16_BIT:
switch (src_format) {
case AUDIO_FORMAT_PCM_FLOAT:
memcpy_to_i16_from_float((int16_t*)dst, (float*)src, count);
return;
case AUDIO_FORMAT_PCM_8_BIT:
memcpy_to_i16_from_u8((int16_t*)dst, (uint8_t*)src, count);
return;
case AUDIO_FORMAT_PCM_24_BIT_PACKED:
memcpy_to_i16_from_p24((int16_t*)dst, (uint8_t*)src, count);
return;
case AUDIO_FORMAT_PCM_32_BIT:
memcpy_to_i16_from_i32((int16_t*)dst, (int32_t*)src, count);
return;
case AUDIO_FORMAT_PCM_8_24_BIT:
memcpy_to_i16_from_q8_23((int16_t*)dst, (int32_t*)src, count);
return;
default:
break;
}
break;
case AUDIO_FORMAT_PCM_FLOAT:
switch (src_format) {
case AUDIO_FORMAT_PCM_16_BIT:
memcpy_to_float_from_i16((float*)dst, (int16_t*)src, count);
return;
case AUDIO_FORMAT_PCM_8_BIT:
memcpy_to_float_from_u8((float*)dst, (uint8_t*)src, count);
return;
case AUDIO_FORMAT_PCM_24_BIT_PACKED:
memcpy_to_float_from_p24((float*)dst, (uint8_t*)src, count);
return;
case AUDIO_FORMAT_PCM_32_BIT:
memcpy_to_float_from_i32((float*)dst, (int32_t*)src, count);
return;
case AUDIO_FORMAT_PCM_8_24_BIT:
memcpy_to_float_from_q8_23((float*)dst, (int32_t*)src, count);
return;
default:
break;
}
break;
case AUDIO_FORMAT_PCM_8_BIT:
switch (src_format) {
case AUDIO_FORMAT_PCM_16_BIT:
memcpy_to_u8_from_i16((uint8_t*)dst, (int16_t*)src, count);
return;
case AUDIO_FORMAT_PCM_FLOAT:
memcpy_to_u8_from_float((uint8_t*)dst, (float*)src, count);
return;
// The following converts HAL to AudioRecord formats.
case AUDIO_FORMAT_PCM_24_BIT_PACKED:
memcpy_to_u8_from_p24((uint8_t*)dst, (uint8_t*)src, count);
return;
case AUDIO_FORMAT_PCM_32_BIT:
memcpy_to_u8_from_i32((uint8_t*)dst, (int32_t*)src, count);
return;
case AUDIO_FORMAT_PCM_8_24_BIT:
memcpy_to_u8_from_q8_23((uint8_t*)dst, (int32_t*)src, count);
return;
default:
break;
}
break;
case AUDIO_FORMAT_PCM_24_BIT_PACKED:
switch (src_format) {
case AUDIO_FORMAT_PCM_16_BIT:
memcpy_to_p24_from_i16((uint8_t*)dst, (int16_t*)src, count);
return;
case AUDIO_FORMAT_PCM_FLOAT:
memcpy_to_p24_from_float((uint8_t*)dst, (float*)src, count);
return;
case AUDIO_FORMAT_PCM_32_BIT:
memcpy_to_p24_from_i32((uint8_t*)dst, (int32_t*)src, count);
return;
case AUDIO_FORMAT_PCM_8_24_BIT:
memcpy_to_p24_from_q8_23((uint8_t*)dst, (int32_t*)src, count);
return;
default:
break;
}
break;
case AUDIO_FORMAT_PCM_32_BIT:
switch (src_format) {
case AUDIO_FORMAT_PCM_16_BIT:
memcpy_to_i32_from_i16((int32_t*)dst, (int16_t*)src, count);
return;
case AUDIO_FORMAT_PCM_FLOAT:
memcpy_to_i32_from_float((int32_t*)dst, (float*)src, count);
return;
case AUDIO_FORMAT_PCM_24_BIT_PACKED:
memcpy_to_i32_from_p24((int32_t*)dst, (uint8_t *)src, count);
return;
default:
break;
}
break;
case AUDIO_FORMAT_PCM_8_24_BIT:
switch (src_format) {
case AUDIO_FORMAT_PCM_16_BIT:
memcpy_to_q8_23_from_i16((int32_t*)dst, (int16_t*)src, count);
return;
case AUDIO_FORMAT_PCM_FLOAT:
memcpy_to_q8_23_from_float_with_clamp((int32_t*)dst, (float*)src, count);
return;
case AUDIO_FORMAT_PCM_24_BIT_PACKED: {
memcpy_to_q8_23_from_p24((int32_t *)dst, (uint8_t *)src, count);
return;
}
default:
break;
}
break;
default:
break;
}
// invalid src format for dst format
assert(false);
}
size_t memcpy_by_index_array_initialization_from_channel_mask(int8_t *idxary, size_t arysize,
audio_channel_mask_t dst_channel_mask, audio_channel_mask_t src_channel_mask)
{
const audio_channel_representation_t src_representation =
audio_channel_mask_get_representation(src_channel_mask);
const audio_channel_representation_t dst_representation =
audio_channel_mask_get_representation(dst_channel_mask);
const uint32_t src_bits = audio_channel_mask_get_bits(src_channel_mask);
const uint32_t dst_bits = audio_channel_mask_get_bits(dst_channel_mask);
switch (src_representation) {
case AUDIO_CHANNEL_REPRESENTATION_POSITION:
switch (dst_representation) {
case AUDIO_CHANNEL_REPRESENTATION_POSITION:
return memcpy_by_index_array_initialization(idxary, arysize,
dst_bits, src_bits);
case AUDIO_CHANNEL_REPRESENTATION_INDEX:
return memcpy_by_index_array_initialization_dst_index(idxary, arysize,
dst_bits, src_bits);
default:
return 0;
}
break;
case AUDIO_CHANNEL_REPRESENTATION_INDEX:
switch (dst_representation) {
case AUDIO_CHANNEL_REPRESENTATION_POSITION:
return memcpy_by_index_array_initialization_src_index(idxary, arysize,
dst_bits, src_bits);
case AUDIO_CHANNEL_REPRESENTATION_INDEX:
return memcpy_by_index_array_initialization(idxary, arysize,
dst_bits, src_bits);
default:
return 0;
}
break;
default:
return 0;
}
}