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Multithreaded encoder, late sync loopfilter

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Second shot at this...

Sync with loopfilter thread as late as possible, usually just at the
beginning of next frame encoding. This returns control to application
faster and allows a better multicore scaling.

When PSNR packets are generated the final filtered frame is needed
imediatly so we cannot delay the sync. Same has to be done when
internal frame is previewed.

Change-Id: I64e110c8b224dd967faefffd9c93dd8dbad4a5b5
This commit is contained in:
Attila Nagy 2011-09-16 13:54:06 +03:00
parent 8144132866
commit 78071b3b97
3 changed files with 30 additions and 8 deletions
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9
vp8/encoder/ethreading.c
View File

@ -24,9 +24,9 @@ extern void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x, int ok_to_skip
extern void vp8_build_block_offsets(MACROBLOCK *x);
extern void vp8_setup_block_ptrs(MACROBLOCK *x);
extern void loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm);
extern void vp8_loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm);
static THREAD_FUNCTION loopfilter_thread(void *p_data)
static THREAD_FUNCTION thread_loopfilter(void *p_data)
{
VP8_COMP *cpi = (VP8_COMP *)(((LPFTHREAD_DATA *)p_data)->ptr1);
VP8_COMMON *cm = &cpi->common;
@ -41,7 +41,7 @@ static THREAD_FUNCTION loopfilter_thread(void *p_data)
if (cpi->b_multi_threaded == 0) // we're shutting down
break;
loopfilter_frame(cpi, cm);
vp8_loopfilter_frame(cpi, cm);
sem_post(&cpi->h_event_end_lpf);
}
@ -468,6 +468,7 @@ void vp8cx_create_encoder_threads(VP8_COMP *cpi)
cpi->b_multi_threaded = 0;
cpi->encoding_thread_count = 0;
cpi->b_lpf_running = 0;
if (cm->processor_core_count > 1 && cpi->oxcf.multi_threaded > 1)
{
@ -526,7 +527,7 @@ void vp8cx_create_encoder_threads(VP8_COMP *cpi)
sem_init(&cpi->h_event_end_lpf, 0, 0);
lpfthd->ptr1 = (void *)cpi;
pthread_create(&cpi->h_filter_thread, 0, loopfilter_thread, lpfthd);
pthread_create(&cpi->h_filter_thread, 0, thread_loopfilter, lpfthd);
}
}

28
vp8/encoder/onyx_if.c
View File

@ -3086,7 +3086,7 @@ void update_reference_frames(VP8_COMMON *cm)
}
}
void loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm)
void vp8_loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm)
{
if (cm->no_lpf)
{
@ -3716,6 +3716,15 @@ static void encode_frame_to_data_rate
vp8_setup_key_frame(cpi);
}
#if CONFIG_MULTITHREAD
/* wait for the last picture loopfilter thread done */
if (cpi->b_lpf_running)
{
sem_wait(&cpi->h_event_end_lpf);
cpi->b_lpf_running = 0;
}
#endif
// transform / motion compensation build reconstruction frame
vp8_encode_frame(cpi);
@ -4074,11 +4083,12 @@ static void encode_frame_to_data_rate
if (cpi->b_multi_threaded)
{
sem_post(&cpi->h_event_start_lpf); /* start loopfilter in separate thread */
cpi->b_lpf_running = 1;
}
else
#endif
{
loopfilter_frame(cpi, cm);
vp8_loopfilter_frame(cpi, cm);
}
update_reference_frames(cm);
@ -4098,10 +4108,11 @@ static void encode_frame_to_data_rate
vp8_pack_bitstream(cpi, dest, dest_end, size);
#if CONFIG_MULTITHREAD
/* wait for loopfilter thread done */
if (cpi->b_multi_threaded)
/* if PSNR packets are generated we have to wait for the lpf */
if (cpi->b_lpf_running && cpi->b_calculate_psnr)
{
sem_wait(&cpi->h_event_end_lpf);
cpi->b_lpf_running = 0;
}
#endif
@ -5107,6 +5118,15 @@ int vp8_get_preview_raw_frame(VP8_COMP *cpi, YV12_BUFFER_CONFIG *dest, vp8_ppfla
else
{
int ret;
#if CONFIG_MULTITHREAD
if(cpi->b_lpf_running)
{
sem_wait(&cpi->h_event_end_lpf);
cpi->b_lpf_running = 0;
}
#endif
#if CONFIG_POSTPROC
ret = vp8_post_proc_frame(&cpi->common, dest, flags);
#else

1
vp8/encoder/onyx_int.h
View File

@ -526,6 +526,7 @@ typedef struct VP8_COMP
int mt_sync_range;
int b_multi_threaded;
int encoding_thread_count;
int b_lpf_running;
pthread_t *h_encoding_thread;
pthread_t h_filter_thread;