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New upstream version 19.0.3+dfsg1

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This commit is contained in:
Sebastian Ramacher 2017-06-29 21:01:10 +02:00
parent 3708b8e092
commit 1f1bbb3518
534 changed files with 13862 additions and 2459 deletions
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110
plugins/decklink/audio-repack.c Normal file
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#include "audio-repack.h"
#include <emmintrin.h>
int check_buffer(struct audio_repack *repack,
uint32_t frame_count)
{
const uint32_t new_size = frame_count * repack->base_dst_size
+ repack->extra_dst_size;
if (repack->packet_size < new_size) {
repack->packet_buffer = brealloc(
repack->packet_buffer, new_size);
if (!repack->packet_buffer)
return -1;
repack->packet_size = new_size;
}
return 0;
}
/*
Swap channel between LFE and FC, and
squash data array
| FL | FR |LFE | FC | BL | BR |emp |emp |
| | x | |
| FL | FR | FC |LFE | BL | BR |
*/
int repack_8to6ch_swap23(struct audio_repack *repack,
const uint8_t *bsrc, uint32_t frame_count)
{
if (check_buffer(repack, frame_count) < 0)
return -1;
const __m128i *src = (__m128i *)bsrc;
const __m128i *esrc = src + frame_count;
uint32_t *dst = (uint32_t *)repack->packet_buffer;
while (src != esrc) {
__m128i target = _mm_load_si128(src++);
__m128i buf = _mm_shufflelo_epi16(target, _MM_SHUFFLE(2, 3, 1, 0));
_mm_storeu_si128((__m128i *)dst, buf);
dst += 3;
}
return 0;
}
/*
Swap channel between LFE and FC
| FL | FR |LFE | FC | BL | BR |SBL |SBR |
| | x | | | |
| FL | FR | FC |LFE | BL | BR |SBL |SBR |
*/
int repack_8ch_swap23(struct audio_repack *repack,
const uint8_t *bsrc, uint32_t frame_count)
{
if (check_buffer(repack, frame_count) < 0)
return -1;
const __m128i *src = (__m128i *)bsrc;
const __m128i *esrc = src + frame_count;
__m128i *dst = (__m128i *)repack->packet_buffer;
while (src != esrc) {
__m128i target = _mm_load_si128(src++);
__m128i buf = _mm_shufflelo_epi16(target, _MM_SHUFFLE(2, 3, 1, 0));
_mm_store_si128(dst++, buf);
}
return 0;
}
int audio_repack_init(struct audio_repack *repack,
audio_repack_mode_t repack_mode, uint8_t sample_bit)
{
memset(repack, 0, sizeof(*repack));
if (sample_bit != 16)
return -1;
switch (repack_mode) {
case repack_mode_8to6ch_swap23:
repack->base_src_size = 8 * (16 / 8);
repack->base_dst_size = 6 * (16 / 8);
repack->extra_dst_size = 2;
repack->repack_func = &repack_8to6ch_swap23;
break;
case repack_mode_8ch_swap23:
repack->base_src_size = 8 * (16 / 8);
repack->base_dst_size = 8 * (16 / 8);
repack->extra_dst_size = 0;
repack->repack_func = &repack_8ch_swap23;
break;
default: return -1;
}
return 0;
}
void audio_repack_free(struct audio_repack *repack)
{
if (repack->packet_buffer)
bfree(repack->packet_buffer);
memset(repack, 0, sizeof(*repack));
}