#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) {
char thread_name[16];
snprintf(thread_name, sizeof(thread_name), "DeckLink_C_%d", card_index);
pthread_setname_np(pthread_self(), thread_name);
+
+ sched_param param;
+ memset(¶m, 0, sizeof(param));
+ param.sched_priority = 1;
+ if (sched_setscheduler(0, SCHED_RR, ¶m) == -1) {
+ printf("couldn't set realtime priority for DeckLink thread: %s\n", strerror(errno));
+ }
+
if (has_dequeue_callbacks) {
dequeue_init_callback();
}
if (video_frame) {
video_format.has_signal = !(video_frame->GetFlags() & bmdFrameHasNoInputSource);
- int width = video_frame->GetWidth();
- int height = video_frame->GetHeight();
+ const int width = video_frame->GetWidth();
+ const int height = video_frame->GetHeight();
const int stride = video_frame->GetRowBytes();
const BMDPixelFormat format = video_frame->GetPixelFormat();
assert(format == pixel_format_to_bmd(current_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);
}
+ if (current_video_frame.data_copy != nullptr) {
+ memcpy(current_video_frame.data_copy, frame_bytes, num_bytes);
+ }
current_video_frame.len += num_bytes;
video_format.width = width;
fprintf(stderr, "StopStreams failed with error 0x%x\n", result);
exit(1);
}
- if (input->DisableVideoInput() != S_OK) {
- fprintf(stderr, "Failed to disable video input for card %d\n", card_index);
- exit(1);
- }
- if (input->DisableAudioInput() != S_OK) {
- fprintf(stderr, "Failed to disable audio input for card %d\n", card_index);
- exit(1);
- }
+
+ // We could call DisableVideoInput() and DisableAudioInput() here,
+ // but they seem to be taking a really long time, and we only do this
+ // during shutdown anyway, so StopStreams() will suffice.
+
running = false;
}
void DeckLinkCapture::set_video_mode(uint32_t video_mode_id)
{
- if (input->PauseStreams() != S_OK) {
- fprintf(stderr, "PauseStreams failed\n");
- exit(1);
- }
- if (input->FlushStreams() != S_OK) {
- fprintf(stderr, "FlushStreams failed\n");
- exit(1);
+ if (running) {
+ if (input->PauseStreams() != S_OK) {
+ fprintf(stderr, "PauseStreams failed\n");
+ exit(1);
+ }
+ if (input->FlushStreams() != S_OK) {
+ fprintf(stderr, "FlushStreams failed\n");
+ exit(1);
+ }
}
set_video_mode_no_restart(video_mode_id);
- if (input->StartStreams() != S_OK) {
- fprintf(stderr, "StartStreams failed\n");
- exit(1);
+ if (running) {
+ if (input->StartStreams() != S_OK) {
+ fprintf(stderr, "StartStreams failed\n");
+ exit(1);
+ }
}
}
projects / nageru / blobdiff