void vp8cx_remove_encoder_threads(VP8_COMP *cpi) {
if (protected_read(&cpi->mt_mutex, &cpi->b_multi_threaded)) {
/* shutdown other threads */
protected_write(&cpi->mt_mutex, &cpi->b_multi_threaded, 0);
{
int i;
for (i = 0; i < cpi->encoding_thread_count; ++i) {
sem_post(&cpi->h_event_start_encoding[i]);
sem_post(&cpi->h_event_end_encoding[i]);
pthread_join(cpi->h_encoding_thread[i], 0);
sem_destroy(&cpi->h_event_start_encoding[i]);
sem_destroy(&cpi->h_event_end_encoding[i]);
}
sem_post(&cpi->h_event_start_lpf);
pthread_join(cpi->h_filter_thread, 0);
}
sem_destroy(&cpi->h_event_end_lpf);
sem_destroy(&cpi->h_event_start_lpf);
/* free thread related resources */
vpx_free(cpi->h_event_start_encoding);
vpx_free(cpi->h_event_end_encoding);
vpx_free(cpi->h_encoding_thread);
vpx_free(cpi->mb_row_ei);
vpx_free(cpi->en_thread_data);
}
pthread_mutex_destroy(&cpi->mt_mutex);
}
static THREAD_FUNCTION thread_loopfilter(void *p_data) {
VP8_COMP *cpi = (VP8_COMP *)(((LPFTHREAD_DATA *)p_data)->ptr1);
VP8_COMMON *cm = &cpi->common;
while (1) {
if (protected_read(&cpi->mt_mutex, &cpi->b_multi_threaded) == 0) break;
if (sem_wait(&cpi->h_event_start_lpf) == 0) {
/* we're shutting down */
if (protected_read(&cpi->mt_mutex, &cpi->b_multi_threaded) == 0) break;
vp8_loopfilter_frame(cpi, cm);
sem_post(&cpi->h_event_end_lpf);
}
}
return 0;
}
size_t input_file_buffer_c::read(void *data, size_t size) {
return protected_read(data, size);
}
size_t input_stdin_buffer_c::read(void *data, size_t size) {
size_t result = protected_read(data, size);
return result;
}
static THREAD_FUNCTION thread_encoding_proc(void *p_data) {
int ithread = ((ENCODETHREAD_DATA *)p_data)->ithread;
VP8_COMP *cpi = (VP8_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr1);
MB_ROW_COMP *mbri = (MB_ROW_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr2);
ENTROPY_CONTEXT_PLANES mb_row_left_context;
while (1) {
if (protected_read(&cpi->mt_mutex, &cpi->b_multi_threaded) == 0) break;
if (sem_wait(&cpi->h_event_start_encoding[ithread]) == 0) {
const int nsync = cpi->mt_sync_range;
VP8_COMMON *cm = &cpi->common;
int mb_row;
MACROBLOCK *x = &mbri->mb;
MACROBLOCKD *xd = &x->e_mbd;
TOKENEXTRA *tp;
#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
TOKENEXTRA *tp_start = cpi->tok + (1 + ithread) * (16 * 24);
const int num_part = (1 << cm->multi_token_partition);
#endif
int *segment_counts = mbri->segment_counts;
int *totalrate = &mbri->totalrate;
/* we're shutting down */
if (protected_read(&cpi->mt_mutex, &cpi->b_multi_threaded) == 0) break;
xd->mode_info_context = cm->mi + cm->mode_info_stride * (ithread + 1);
xd->mode_info_stride = cm->mode_info_stride;
for (mb_row = ithread + 1; mb_row < cm->mb_rows;
mb_row += (cpi->encoding_thread_count + 1)) {
int recon_yoffset, recon_uvoffset;
int mb_col;
int ref_fb_idx = cm->lst_fb_idx;
int dst_fb_idx = cm->new_fb_idx;
int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
int map_index = (mb_row * cm->mb_cols);
const int *last_row_current_mb_col;
int *current_mb_col = &cpi->mt_current_mb_col[mb_row];
#if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
vp8_writer *w = &cpi->bc[1 + (mb_row % num_part)];
#else
tp = cpi->tok + (mb_row * (cm->mb_cols * 16 * 24));
cpi->tplist[mb_row].start = tp;
#endif
last_row_current_mb_col = &cpi->mt_current_mb_col[mb_row - 1];
/* reset above block coeffs */
xd->above_context = cm->above_context;
xd->left_context = &mb_row_left_context;
vp8_zero(mb_row_left_context);
xd->up_available = (mb_row != 0);
recon_yoffset = (mb_row * recon_y_stride * 16);
recon_uvoffset = (mb_row * recon_uv_stride * 8);
/* Set the mb activity pointer to the start of the row. */
x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
/* for each macroblock col in image */
for (mb_col = 0; mb_col < cm->mb_cols; ++mb_col) {
if (((mb_col - 1) % nsync) == 0) {
pthread_mutex_t *mutex = &cpi->pmutex[mb_row];
protected_write(mutex, current_mb_col, mb_col - 1);
}
if (mb_row && !(mb_col & (nsync - 1))) {
pthread_mutex_t *mutex = &cpi->pmutex[mb_row - 1];
sync_read(mutex, mb_col, last_row_current_mb_col, nsync);
}
#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
tp = tp_start;
#endif
/* Distance of Mb to the various image edges.
* These specified to 8th pel as they are always compared
* to values that are in 1/8th pel units
*/
xd->mb_to_left_edge = -((mb_col * 16) << 3);
xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
xd->mb_to_top_edge = -((mb_row * 16) << 3);
xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
/* Set up limit values for motion vectors used to prevent
* them extending outside the UMV borders
*/
x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
x->mv_col_max =
((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
x->mv_row_max =
((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
xd->left_available = (mb_col != 0);
x->rddiv = cpi->RDDIV;
x->rdmult = cpi->RDMULT;
/* Copy current mb to a buffer */
vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
if (cpi->oxcf.tuning == VP8_TUNE_SSIM) vp8_activity_masking(cpi, x);
/* Is segmentation enabled */
/* MB level adjustment to quantizer */
if (xd->segmentation_enabled) {
/* Code to set segment id in xd->mbmi.segment_id for
* current MB (with range checking)
*/
if (cpi->segmentation_map[map_index + mb_col] <= 3) {
xd->mode_info_context->mbmi.segment_id =
cpi->segmentation_map[map_index + mb_col];
} else {
xd->mode_info_context->mbmi.segment_id = 0;
}
vp8cx_mb_init_quantizer(cpi, x, 1);
} else {
/* Set to Segment 0 by default */
xd->mode_info_context->mbmi.segment_id = 0;
}
x->active_ptr = cpi->active_map + map_index + mb_col;
if (cm->frame_type == KEY_FRAME) {
*totalrate += vp8cx_encode_intra_macroblock(cpi, x, &tp);
#ifdef MODE_STATS
y_modes[xd->mbmi.mode]++;
#endif
} else {
*totalrate += vp8cx_encode_inter_macroblock(
cpi, x, &tp, recon_yoffset, recon_uvoffset, mb_row, mb_col);
#ifdef MODE_STATS
inter_y_modes[xd->mbmi.mode]++;
if (xd->mbmi.mode == SPLITMV) {
int b;
for (b = 0; b < xd->mbmi.partition_count; ++b) {
inter_b_modes[x->partition->bmi[b].mode]++;
}
}
#endif
// Keep track of how many (consecutive) times a block
// is coded as ZEROMV_LASTREF, for base layer frames.
// Reset to 0 if its coded as anything else.
if (cpi->current_layer == 0) {
if (xd->mode_info_context->mbmi.mode == ZEROMV &&
xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) {
// Increment, check for wrap-around.
if (cpi->consec_zero_last[map_index + mb_col] < 255) {
cpi->consec_zero_last[map_index + mb_col] += 1;
}
if (cpi->consec_zero_last_mvbias[map_index + mb_col] < 255) {
cpi->consec_zero_last_mvbias[map_index + mb_col] += 1;
}
} else {
cpi->consec_zero_last[map_index + mb_col] = 0;
cpi->consec_zero_last_mvbias[map_index + mb_col] = 0;
}
if (x->zero_last_dot_suppress) {
cpi->consec_zero_last_mvbias[map_index + mb_col] = 0;
}
}
/* Special case code for cyclic refresh
* If cyclic update enabled then copy
* xd->mbmi.segment_id; (which may have been updated
* based on mode during
* vp8cx_encode_inter_macroblock()) back into the
* global segmentation map
*/
if ((cpi->current_layer == 0) &&
(cpi->cyclic_refresh_mode_enabled &&
xd->segmentation_enabled)) {
const MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi;
cpi->segmentation_map[map_index + mb_col] = mbmi->segment_id;
/* If the block has been refreshed mark it as clean
* (the magnitude of the -ve influences how long it
* will be before we consider another refresh):
* Else if it was coded (last frame 0,0) and has
* not already been refreshed then mark it as a
* candidate for cleanup next time (marked 0) else
* mark it as dirty (1).
*/
if (mbmi->segment_id) {
cpi->cyclic_refresh_map[map_index + mb_col] = -1;
} else if ((mbmi->mode == ZEROMV) &&
(mbmi->ref_frame == LAST_FRAME)) {
if (cpi->cyclic_refresh_map[map_index + mb_col] == 1) {
cpi->cyclic_refresh_map[map_index + mb_col] = 0;
}
} else {
cpi->cyclic_refresh_map[map_index + mb_col] = 1;
}
}
}
#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
/* pack tokens for this MB */
{
int tok_count = tp - tp_start;
vp8_pack_tokens(w, tp_start, tok_count);
}
#else
cpi->tplist[mb_row].stop = tp;
#endif
/* Increment pointer into gf usage flags structure. */
x->gf_active_ptr++;
/* Increment the activity mask pointers. */
x->mb_activity_ptr++;
/* adjust to the next column of macroblocks */
x->src.y_buffer += 16;
x->src.u_buffer += 8;
x->src.v_buffer += 8;
recon_yoffset += 16;
recon_uvoffset += 8;
/* Keep track of segment usage */
segment_counts[xd->mode_info_context->mbmi.segment_id]++;
/* skip to next mb */
xd->mode_info_context++;
x->partition_info++;
xd->above_context++;
}
vp8_extend_mb_row(&cm->yv12_fb[dst_fb_idx], xd->dst.y_buffer + 16,
xd->dst.u_buffer + 8, xd->dst.v_buffer + 8);
protected_write(&cpi->pmutex[mb_row], current_mb_col, mb_col + nsync);
/* this is to account for the border */
xd->mode_info_context++;
x->partition_info++;
x->src.y_buffer +=
16 * x->src.y_stride * (cpi->encoding_thread_count + 1) -
16 * cm->mb_cols;
x->src.u_buffer +=
8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) -
8 * cm->mb_cols;
x->src.v_buffer +=
8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) -
8 * cm->mb_cols;
xd->mode_info_context +=
xd->mode_info_stride * cpi->encoding_thread_count;
x->partition_info += xd->mode_info_stride * cpi->encoding_thread_count;
x->gf_active_ptr += cm->mb_cols * cpi->encoding_thread_count;
}
/* Signal that this thread has completed processing its rows. */
sem_post(&cpi->h_event_end_encoding[ithread]);
}
}
/* printf("exit thread %d\n", ithread); */
return 0;
}