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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.
*/
/* #define LOG_NDEBUG 0 */
#define LOG_TAG "audio_utils_format"
#include <cutils/log.h>
#include <audio_utils/primitives.h>
#include <audio_utils/format.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 fatal log 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:
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;
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;
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;
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;
case AUDIO_FORMAT_PCM_24_BIT_OFFLOAD: {
// pcm 24 bit with padding at LSB
// can assume LE?
size_t i;
uint8_t * src_ptr = (uint8_t *)src;
int32_t * dst_ptr = (int32_t *)dst;
switch (src_format) {
case AUDIO_FORMAT_PCM_24_BIT_PACKED: {
for (i = 0; i < count; i++) {
*dst_ptr++ = (int8_t)src_ptr[2] << 24 | src_ptr[1] << 16 | src_ptr[0] << 8;
src_ptr += 3;
}
return;
}
case AUDIO_FORMAT_PCM_8_24_BIT: { // padding is at MSB
for (i = 0; i < count; i++) {
*dst_ptr++ = (int8_t)src_ptr[2] << 24 | src_ptr[1] << 16 | src_ptr[0] << 8;
src_ptr += 4;
}
return;
}
default:
break;
}
break;
}
default:
break;
}
LOG_ALWAYS_FATAL("invalid src format %#x for dst format %#x",
src_format, dst_format);
}
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;
}
}
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