OBJS += quicksync_encoder.o x264_encoder.o x264_dynamic.o x264_speed_control.o video_encoder.o metacube2.o mux.o audio_encoder.o ffmpeg_raii.o ffmpeg_util.o json.pb.o
# DeckLink
-OBJS += decklink_capture.o decklink_util.o decklink_output.o decklink/DeckLinkAPIDispatch.o
+OBJS += decklink_capture.o decklink_util.o decklink_output.o memcpy_interleaved.o decklink/DeckLinkAPIDispatch.o
KAERU_OBJS = kaeru.o x264_encoder.o mux.o basic_stats.o metrics.o flags.o audio_encoder.o x264_speed_control.o print_latency.o x264_dynamic.o ffmpeg_raii.o ref_counted_frame.o ffmpeg_capture.o ffmpeg_util.o httpd.o json.pb.o metacube2.o
#include "bmusb/bmusb.h"
#include "decklink_util.h"
#include "flags.h"
+#include "memcpy_interleaved.h"
#include "v210_converter.h"
#define FRAME_SIZE (8 << 20) // 8 MB.
namespace {
-// TODO: Support stride.
-void memcpy_interleaved(uint8_t *dest1, uint8_t *dest2, const uint8_t *src, size_t n)
-{
- assert(n % 2 == 0);
- uint8_t *dptr1 = dest1;
- uint8_t *dptr2 = dest2;
-
- for (size_t i = 0; i < n; i += 2) {
- *dptr1++ = *src++;
- *dptr2++ = *src++;
- }
-}
-
-#ifdef __SSE2__
-
-// Returns the number of bytes consumed.
-size_t memcpy_interleaved_fastpath(uint8_t *dest1, uint8_t *dest2, const uint8_t *src, size_t n)
-{
- const uint8_t *limit = src + n;
- size_t consumed = 0;
-
- // Align end to 32 bytes.
- limit = (const uint8_t *)(intptr_t(limit) & ~31);
-
- if (src >= limit) {
- return 0;
- }
-
- // Process [0,31] bytes, such that start gets aligned to 32 bytes.
- const uint8_t *aligned_src = (const uint8_t *)(intptr_t(src + 31) & ~31);
- if (aligned_src != src) {
- size_t n2 = aligned_src - src;
- memcpy_interleaved(dest1, dest2, src, n2);
- dest1 += n2 / 2;
- dest2 += n2 / 2;
- if (n2 % 2) {
- swap(dest1, dest2);
- }
- src = aligned_src;
- consumed += n2;
- }
-
- // Make the length a multiple of 64.
- if (((limit - src) % 64) != 0) {
- limit -= 32;
- }
- assert(((limit - src) % 64) == 0);
-
-#if __AVX2__
- const __m256i * __restrict in = (const __m256i *)src;
- __m256i * __restrict out1 = (__m256i *)dest1;
- __m256i * __restrict out2 = (__m256i *)dest2;
-
- __m256i shuffle_cw = _mm256_set_epi8(
- 15, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 0,
- 15, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 0);
- while (in < (const __m256i *)limit) {
- // Note: For brevity, comments show lanes as if they were 2x64-bit (they're actually 2x128).
- __m256i data1 = _mm256_stream_load_si256(in); // AaBbCcDd EeFfGgHh
- __m256i data2 = _mm256_stream_load_si256(in + 1); // IiJjKkLl MmNnOoPp
-
- data1 = _mm256_shuffle_epi8(data1, shuffle_cw); // ABCDabcd EFGHefgh
- data2 = _mm256_shuffle_epi8(data2, shuffle_cw); // IJKLijkl MNOPmnop
-
- data1 = _mm256_permute4x64_epi64(data1, 0b11011000); // ABCDEFGH abcdefgh
- data2 = _mm256_permute4x64_epi64(data2, 0b11011000); // IJKLMNOP ijklmnop
-
- __m256i lo = _mm256_permute2x128_si256(data1, data2, 0b00100000);
- __m256i hi = _mm256_permute2x128_si256(data1, data2, 0b00110001);
-
- _mm256_storeu_si256(out1, lo);
- _mm256_storeu_si256(out2, hi);
-
- in += 2;
- ++out1;
- ++out2;
- consumed += 64;
- }
-#else
- const __m128i * __restrict in = (const __m128i *)src;
- __m128i * __restrict out1 = (__m128i *)dest1;
- __m128i * __restrict out2 = (__m128i *)dest2;
-
- __m128i mask_lower_byte = _mm_set1_epi16(0x00ff);
- while (in < (const __m128i *)limit) {
- __m128i data1 = _mm_load_si128(in);
- __m128i data2 = _mm_load_si128(in + 1);
- __m128i data1_lo = _mm_and_si128(data1, mask_lower_byte);
- __m128i data2_lo = _mm_and_si128(data2, mask_lower_byte);
- __m128i data1_hi = _mm_srli_epi16(data1, 8);
- __m128i data2_hi = _mm_srli_epi16(data2, 8);
- __m128i lo = _mm_packus_epi16(data1_lo, data2_lo);
- _mm_storeu_si128(out1, lo);
- __m128i hi = _mm_packus_epi16(data1_hi, data2_hi);
- _mm_storeu_si128(out2, hi);
-
- in += 2;
- ++out1;
- ++out2;
- consumed += 32;
- }
-#endif
-
- return consumed;
-}
-
-#endif // __SSE2__
-
BMDPixelFormat pixel_format_to_bmd(PixelFormat pixel_format)
{
switch (pixel_format) {
if (current_video_frame.interleaved) {
uint8_t *data = current_video_frame.data;
uint8_t *data2 = current_video_frame.data2;
-#ifdef __SSE2__
- size_t consumed = memcpy_interleaved_fastpath(data, data2, frame_bytes, num_bytes);
- frame_bytes += consumed;
- data += consumed / 2;
- data2 += consumed / 2;
- if (num_bytes % 2) {
- swap(data, data2);
- }
- current_video_frame.len += consumed;
- num_bytes -= consumed;
-#endif
-
- if (num_bytes > 0) {
- memcpy_interleaved(data, data2, frame_bytes, num_bytes);
- }
+ memcpy_interleaved(data, data2, frame_bytes, num_bytes);
} else {
memcpy(current_video_frame.data, frame_bytes, num_bytes);
}
--- /dev/null
+#include <cstdint>
+#include <algorithm>
+#include <assert.h>
+#if __SSE2__
+#include <immintrin.h>
+#endif
+
+using namespace std;
+
+// TODO: Support stride.
+void memcpy_interleaved_slow(uint8_t *dest1, uint8_t *dest2, const uint8_t *src, size_t n)
+{
+ assert(n % 2 == 0);
+ uint8_t *dptr1 = dest1;
+ uint8_t *dptr2 = dest2;
+
+ for (size_t i = 0; i < n; i += 2) {
+ *dptr1++ = *src++;
+ *dptr2++ = *src++;
+ }
+}
+
+#ifdef __SSE2__
+
+// Returns the number of bytes consumed.
+size_t memcpy_interleaved_fastpath(uint8_t *dest1, uint8_t *dest2, const uint8_t *src, size_t n)
+{
+ const uint8_t *limit = src + n;
+ size_t consumed = 0;
+
+ // Align end to 32 bytes.
+ limit = (const uint8_t *)(intptr_t(limit) & ~31);
+
+ if (src >= limit) {
+ return 0;
+ }
+
+ // Process [0,31] bytes, such that start gets aligned to 32 bytes.
+ const uint8_t *aligned_src = (const uint8_t *)(intptr_t(src + 31) & ~31);
+ if (aligned_src != src) {
+ size_t n2 = aligned_src - src;
+ memcpy_interleaved_slow(dest1, dest2, src, n2);
+ dest1 += n2 / 2;
+ dest2 += n2 / 2;
+ if (n2 % 2) {
+ swap(dest1, dest2);
+ }
+ src = aligned_src;
+ consumed += n2;
+ }
+
+ // Make the length a multiple of 64.
+ if (((limit - src) % 64) != 0) {
+ limit -= 32;
+ }
+ assert(((limit - src) % 64) == 0);
+
+#if __AVX2__
+ const __m256i * __restrict in = (const __m256i *)src;
+ __m256i * __restrict out1 = (__m256i *)dest1;
+ __m256i * __restrict out2 = (__m256i *)dest2;
+
+ __m256i shuffle_cw = _mm256_set_epi8(
+ 15, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 0,
+ 15, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 0);
+ while (in < (const __m256i *)limit) {
+ // Note: For brevity, comments show lanes as if they were 2x64-bit (they're actually 2x128).
+ __m256i data1 = _mm256_stream_load_si256(in); // AaBbCcDd EeFfGgHh
+ __m256i data2 = _mm256_stream_load_si256(in + 1); // IiJjKkLl MmNnOoPp
+
+ data1 = _mm256_shuffle_epi8(data1, shuffle_cw); // ABCDabcd EFGHefgh
+ data2 = _mm256_shuffle_epi8(data2, shuffle_cw); // IJKLijkl MNOPmnop
+
+ data1 = _mm256_permute4x64_epi64(data1, 0b11011000); // ABCDEFGH abcdefgh
+ data2 = _mm256_permute4x64_epi64(data2, 0b11011000); // IJKLMNOP ijklmnop
+
+ __m256i lo = _mm256_permute2x128_si256(data1, data2, 0b00100000);
+ __m256i hi = _mm256_permute2x128_si256(data1, data2, 0b00110001);
+
+ _mm256_storeu_si256(out1, lo);
+ _mm256_storeu_si256(out2, hi);
+
+ in += 2;
+ ++out1;
+ ++out2;
+ consumed += 64;
+ }
+#else
+ const __m128i * __restrict in = (const __m128i *)src;
+ __m128i * __restrict out1 = (__m128i *)dest1;
+ __m128i * __restrict out2 = (__m128i *)dest2;
+
+ __m128i mask_lower_byte = _mm_set1_epi16(0x00ff);
+ while (in < (const __m128i *)limit) {
+ __m128i data1 = _mm_load_si128(in);
+ __m128i data2 = _mm_load_si128(in + 1);
+ __m128i data1_lo = _mm_and_si128(data1, mask_lower_byte);
+ __m128i data2_lo = _mm_and_si128(data2, mask_lower_byte);
+ __m128i data1_hi = _mm_srli_epi16(data1, 8);
+ __m128i data2_hi = _mm_srli_epi16(data2, 8);
+ __m128i lo = _mm_packus_epi16(data1_lo, data2_lo);
+ _mm_storeu_si128(out1, lo);
+ __m128i hi = _mm_packus_epi16(data1_hi, data2_hi);
+ _mm_storeu_si128(out2, hi);
+
+ in += 2;
+ ++out1;
+ ++out2;
+ consumed += 32;
+ }
+#endif
+
+ return consumed;
+}
+
+#endif // defined(__SSE2__)
+
+void memcpy_interleaved(uint8_t *dest1, uint8_t *dest2, const uint8_t *src, size_t n)
+{
+#ifdef __SSE2__
+ size_t consumed = memcpy_interleaved_fastpath(dest1, dest2, src, n);
+ src += consumed;
+ dest1 += consumed / 2;
+ dest2 += consumed / 2;
+ if (consumed % 2) {
+ swap(dest1, dest2);
+ }
+ n -= consumed;
+
+ if (n > 0) {
+ memcpy_interleaved_slow(dest1, dest2, src, n);
+ }
+#else
+ memcpy_interleaved_slow(dest1, dest2, src, n);
+#endif
+}
--- /dev/null
+#ifndef _MEMCPY_INTERLEAVED_H
+#define _MEMCPY_INTERLEAVED_H 1
+
+#include <stddef.h>
+#include <stdint.h>
+
+// Copies every other byte from src to dest1 and dest2.
+// TODO: Support stride.
+void memcpy_interleaved(uint8_t *dest1, uint8_t *dest2, const uint8_t *src, size_t n);
+
+#endif // !defined(_MEMCPY_INTERLEAVED_H)
projects / nageru / commitdiff