extern void print_tree_update_probs();
extern void vp8cx_create_encoder_threads(VP8_COMP *cpi);
extern void vp8cx_remove_encoder_threads(VP8_COMP *cpi);
-#if HAVE_NEON
-extern void vp8_yv12_copy_frame_func_neon(YV12_BUFFER_CONFIG *src_ybc, YV12_BUFFER_CONFIG *dst_ybc);
-extern void vp8_yv12_copy_src_frame_func_neon(YV12_BUFFER_CONFIG *src_ybc, YV12_BUFFER_CONFIG *dst_ybc);
-#endif
int vp8_estimate_entropy_savings(VP8_COMP *cpi);
extern void vp8cx_init_quantizer(VP8_COMP *cpi);
extern const int vp8cx_base_skip_false_prob[128];
-// Tables relating active max Q to active min Q
+/* Tables relating active max Q to active min Q */
static const unsigned char kf_low_motion_minq[QINDEX_RANGE] =
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
{
LAYER_CONTEXT *lc = &cpi->layer_context[cpi->current_layer];
- // Save layer dependent coding state
+ /* Save layer dependent coding state */
lc->target_bandwidth = cpi->target_bandwidth;
- //lc->target_bandwidth = cpi->oxcf.target_bandwidth;
lc->starting_buffer_level = cpi->oxcf.starting_buffer_level;
lc->optimal_buffer_level = cpi->oxcf.optimal_buffer_level;
lc->maximum_buffer_size = cpi->oxcf.maximum_buffer_size;
{
LAYER_CONTEXT *lc = &cpi->layer_context[layer];
- // Restore layer dependent coding state
+ /* Restore layer dependent coding state */
cpi->current_layer = layer;
cpi->target_bandwidth = lc->target_bandwidth;
cpi->oxcf.target_bandwidth = lc->target_bandwidth;
cpi->buffer_level = lc->buffer_level;
cpi->bits_off_target = lc->bits_off_target;
cpi->total_actual_bits = lc->total_actual_bits;
- //cpi->worst_quality = lc->worst_quality;
cpi->active_worst_quality = lc->active_worst_quality;
- //cpi->best_quality = lc->best_quality;
cpi->active_best_quality = lc->active_best_quality;
cpi->ni_av_qi = lc->ni_av_qi;
cpi->ni_tot_qi = lc->ni_tot_qi;
static void setup_features(VP8_COMP *cpi)
{
- // Set up default state for MB feature flags
- cpi->mb.e_mbd.segmentation_enabled = 0;
- cpi->mb.e_mbd.update_mb_segmentation_map = 0;
- cpi->mb.e_mbd.update_mb_segmentation_data = 0;
- vpx_memset(cpi->mb.e_mbd.mb_segment_tree_probs, 255, sizeof(cpi->mb.e_mbd.mb_segment_tree_probs));
- vpx_memset(cpi->mb.e_mbd.segment_feature_data, 0, sizeof(cpi->mb.e_mbd.segment_feature_data));
+ // If segmentation enabled set the update flags
+ if ( cpi->mb.e_mbd.segmentation_enabled )
+ {
+ cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+ cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+ }
+ else
+ {
+ cpi->mb.e_mbd.update_mb_segmentation_map = 0;
+ cpi->mb.e_mbd.update_mb_segmentation_data = 0;
+ }
cpi->mb.e_mbd.mode_ref_lf_delta_enabled = 0;
cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
vpx_free(cpi->tplist);
cpi->tplist = NULL;
- // Delete last frame MV storage buffers
+ /* Delete last frame MV storage buffers */
vpx_free(cpi->lfmv);
cpi->lfmv = 0;
vpx_free(cpi->lf_ref_frame);
cpi->lf_ref_frame = 0;
- // Delete sementation map
+ /* Delete sementation map */
vpx_free(cpi->segmentation_map);
cpi->segmentation_map = 0;
vpx_free(cpi->tok);
cpi->tok = 0;
- // Structure used to monitor GF usage
+ /* Structure used to monitor GF usage */
vpx_free(cpi->gf_active_flags);
cpi->gf_active_flags = 0;
- // Activity mask based per mb zbin adjustments
+ /* Activity mask based per mb zbin adjustments */
vpx_free(cpi->mb_activity_map);
cpi->mb_activity_map = 0;
vpx_free(cpi->mb_norm_activity_map);
static void enable_segmentation(VP8_COMP *cpi)
{
- // Set the appropriate feature bit
+ /* Set the appropriate feature bit */
cpi->mb.e_mbd.segmentation_enabled = 1;
cpi->mb.e_mbd.update_mb_segmentation_map = 1;
cpi->mb.e_mbd.update_mb_segmentation_data = 1;
}
static void disable_segmentation(VP8_COMP *cpi)
{
- // Clear the appropriate feature bit
+ /* Clear the appropriate feature bit */
cpi->mb.e_mbd.segmentation_enabled = 0;
}
-// Valid values for a segment are 0 to 3
-// Segmentation map is arrange as [Rows][Columns]
+/* Valid values for a segment are 0 to 3
+ * Segmentation map is arrange as [Rows][Columns]
+ */
static void set_segmentation_map(VP8_COMP *cpi, unsigned char *segmentation_map)
{
- // Copy in the new segmentation map
+ /* Copy in the new segmentation map */
vpx_memcpy(cpi->segmentation_map, segmentation_map, (cpi->common.mb_rows * cpi->common.mb_cols));
- // Signal that the map should be updated.
+ /* Signal that the map should be updated. */
cpi->mb.e_mbd.update_mb_segmentation_map = 1;
cpi->mb.e_mbd.update_mb_segmentation_data = 1;
}
-// The values given for each segment can be either deltas (from the default value chosen for the frame) or absolute values.
-//
-// Valid range for abs values is (0-127 for MB_LVL_ALT_Q) , (0-63 for SEGMENT_ALT_LF)
-// Valid range for delta values are (+/-127 for MB_LVL_ALT_Q) , (+/-63 for SEGMENT_ALT_LF)
-//
-// abs_delta = SEGMENT_DELTADATA (deltas) abs_delta = SEGMENT_ABSDATA (use the absolute values given).
-//
-//
+/* The values given for each segment can be either deltas (from the default
+ * value chosen for the frame) or absolute values.
+ *
+ * Valid range for abs values is:
+ * (0-127 for MB_LVL_ALT_Q), (0-63 for SEGMENT_ALT_LF)
+ * Valid range for delta values are:
+ * (+/-127 for MB_LVL_ALT_Q), (+/-63 for SEGMENT_ALT_LF)
+ *
+ * abs_delta = SEGMENT_DELTADATA (deltas)
+ * abs_delta = SEGMENT_ABSDATA (use the absolute values given).
+ *
+ */
static void set_segment_data(VP8_COMP *cpi, signed char *feature_data, unsigned char abs_delta)
{
cpi->mb.e_mbd.mb_segement_abs_delta = abs_delta;
// Create a temporary map for segmentation data.
CHECK_MEM_ERROR(seg_map, vpx_calloc(cpi->common.mb_rows * cpi->common.mb_cols, 1));
- // MB loop to set local segmentation map
- /*for ( i = 0; i < cpi->common.mb_rows; i++ )
- {
- for ( j = 0; j < cpi->common.mb_cols; j++ )
- {
- //seg_map[(i*cpi->common.mb_cols) + j] = (j % 2) + ((i%2)* 2);
- //if ( j < cpi->common.mb_cols/2 )
-
- // Segment 1 around the edge else 0
- if ( (i == 0) || (j == 0) || (i == (cpi->common.mb_rows-1)) || (j == (cpi->common.mb_cols-1)) )
- seg_map[(i*cpi->common.mb_cols) + j] = 1;
- //else if ( (i < 2) || (j < 2) || (i > (cpi->common.mb_rows-3)) || (j > (cpi->common.mb_cols-3)) )
- // seg_map[(i*cpi->common.mb_cols) + j] = 2;
- //else if ( (i < 5) || (j < 5) || (i > (cpi->common.mb_rows-6)) || (j > (cpi->common.mb_cols-6)) )
- // seg_map[(i*cpi->common.mb_cols) + j] = 3;
- else
- seg_map[(i*cpi->common.mb_cols) + j] = 0;
- }
- }*/
-
// Set the segmentation Map
set_segmentation_map(cpi, seg_map);
set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
// Delete sementation map
- vpx_free(seg_map);
+ vpx_free(seg_map);
seg_map = 0;
-
}
-// A simple function to cyclically refresh the background at a lower Q
+/* A simple function to cyclically refresh the background at a lower Q */
static void cyclic_background_refresh(VP8_COMP *cpi, int Q, int lf_adjustment)
{
unsigned char *seg_map;
int block_count = cpi->cyclic_refresh_mode_max_mbs_perframe;
int mbs_in_frame = cpi->common.mb_rows * cpi->common.mb_cols;
- // Create a temporary map for segmentation data.
+ /* Create a temporary map for segmentation data. */
CHECK_MEM_ERROR(seg_map, vpx_calloc(cpi->common.mb_rows * cpi->common.mb_cols, 1));
cpi->cyclic_refresh_q = Q;
for (i = Q; i > 0; i--)
{
if (vp8_bits_per_mb[cpi->common.frame_type][i] >= ((vp8_bits_per_mb[cpi->common.frame_type][Q]*(Q + 128)) / 64))
- //if ( vp8_bits_per_mb[cpi->common.frame_type][i] >= ((vp8_bits_per_mb[cpi->common.frame_type][Q]*((2*Q)+96))/64) )
{
break;
}
cpi->cyclic_refresh_q = i;
- // Only update for inter frames
+ /* Only update for inter frames */
if (cpi->common.frame_type != KEY_FRAME)
{
- // Cycle through the macro_block rows
- // MB loop to set local segmentation map
+ /* Cycle through the macro_block rows */
+ /* MB loop to set local segmentation map */
for (i = cpi->cyclic_refresh_mode_index; i < mbs_in_frame; i++)
{
- // If the MB is as a candidate for clean up then mark it for possible boost/refresh (segment 1)
- // The segment id may get reset to 0 later if the MB gets coded anything other than last frame 0,0
- // as only (last frame 0,0) MBs are eligable for refresh : that is to say Mbs likely to be background blocks.
+ /* If the MB is as a candidate for clean up then mark it for
+ * possible boost/refresh (segment 1) The segment id may get
+ * reset to 0 later if the MB gets coded anything other than
+ * last frame 0,0 as only (last frame 0,0) MBs are eligable for
+ * refresh : that is to say Mbs likely to be background blocks.
+ */
if (cpi->cyclic_refresh_map[i] == 0)
{
seg_map[i] = 1;
{
seg_map[i] = 0;
- // Skip blocks that have been refreshed recently anyway.
+ /* Skip blocks that have been refreshed recently anyway. */
if (cpi->cyclic_refresh_map[i] < 0)
- //cpi->cyclic_refresh_map[i] = cpi->cyclic_refresh_map[i] / 16;
cpi->cyclic_refresh_map[i]++;
}
}
- // If we have gone through the frame reset to the start
+ /* If we have gone through the frame reset to the start */
cpi->cyclic_refresh_mode_index = i;
if (cpi->cyclic_refresh_mode_index >= mbs_in_frame)
cpi->cyclic_refresh_mode_index = 0;
}
- // Set the segmentation Map
+ /* Set the segmentation Map */
set_segmentation_map(cpi, seg_map);
- // Activate segmentation.
+ /* Activate segmentation. */
enable_segmentation(cpi);
- // Set up the quant segment data
+ /* Set up the quant segment data */
feature_data[MB_LVL_ALT_Q][0] = 0;
feature_data[MB_LVL_ALT_Q][1] = (cpi->cyclic_refresh_q - Q);
feature_data[MB_LVL_ALT_Q][2] = 0;
feature_data[MB_LVL_ALT_Q][3] = 0;
- // Set up the loop segment data
+ /* Set up the loop segment data */
feature_data[MB_LVL_ALT_LF][0] = 0;
feature_data[MB_LVL_ALT_LF][1] = lf_adjustment;
feature_data[MB_LVL_ALT_LF][2] = 0;
feature_data[MB_LVL_ALT_LF][3] = 0;
- // Initialise the feature data structure
- // SEGMENT_DELTADATA 0, SEGMENT_ABSDATA 1
+ /* Initialise the feature data structure */
set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
- // Delete sementation map
+ /* Delete sementation map */
vpx_free(seg_map);
seg_map = 0;
vpx_memset(cpi->mb.e_mbd.ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
vpx_memset(cpi->mb.e_mbd.mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
- // Test of ref frame deltas
+ /* Test of ref frame deltas */
cpi->mb.e_mbd.ref_lf_deltas[INTRA_FRAME] = 2;
cpi->mb.e_mbd.ref_lf_deltas[LAST_FRAME] = 0;
cpi->mb.e_mbd.ref_lf_deltas[GOLDEN_FRAME] = -2;
cpi->mb.e_mbd.ref_lf_deltas[ALTREF_FRAME] = -2;
- cpi->mb.e_mbd.mode_lf_deltas[0] = 4; // BPRED
- cpi->mb.e_mbd.mode_lf_deltas[1] = -2; // Zero
- cpi->mb.e_mbd.mode_lf_deltas[2] = 2; // New mv
- cpi->mb.e_mbd.mode_lf_deltas[3] = 4; // Split mv
+ cpi->mb.e_mbd.mode_lf_deltas[0] = 4; /* BPRED */
+ cpi->mb.e_mbd.mode_lf_deltas[1] = -2; /* Zero */
+ cpi->mb.e_mbd.mode_lf_deltas[2] = 2; /* New mv */
+ cpi->mb.e_mbd.mode_lf_deltas[3] = 4; /* Split mv */
}
/* Convenience macros for mapping speed and mode into a continuous
int last_improved_quant = sf->improved_quant;
int ref_frames;
- // Initialise default mode frequency sampling variables
+ /* Initialise default mode frequency sampling variables */
for (i = 0; i < MAX_MODES; i ++)
{
cpi->mode_check_freq[i] = 0;
cpi->mbs_tested_so_far = 0;
- // best quality defaults
+ /* best quality defaults */
sf->RD = 1;
sf->search_method = NSTEP;
sf->improved_quant = 1;
sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
sf->improved_mv_pred = 1;
- // default thresholds to 0
+ /* default thresholds to 0 */
for (i = 0; i < MAX_MODES; i++)
sf->thresh_mult[i] = 0;
switch (Mode)
{
#if !(CONFIG_REALTIME_ONLY)
- case 0: // best quality mode
+ case 0: /* best quality mode */
sf->first_step = 0;
sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
break;
sf->improved_quant = 0;
sf->improved_dct = 0;
- // Only do recode loop on key frames, golden frames and
- // alt ref frames
+ /* Only do recode loop on key frames, golden frames and
+ * alt ref frames
+ */
sf->recode_loop = 2;
}
if (Speed > 3)
{
sf->auto_filter = 1;
- sf->recode_loop = 0; // recode loop off
- sf->RD = 0; // Turn rd off
+ sf->recode_loop = 0; /* recode loop off */
+ sf->RD = 0; /* Turn rd off */
}
if (Speed > 4)
{
- sf->auto_filter = 0; // Faster selection of loop filter
+ sf->auto_filter = 0; /* Faster selection of loop filter */
}
break;
}
if (Speed > 2)
- sf->auto_filter = 0; // Faster selection of loop filter
+ sf->auto_filter = 0; /* Faster selection of loop filter */
if (Speed > 3)
{
if (Speed > 4)
{
- sf->auto_filter = 0; // Faster selection of loop filter
+ sf->auto_filter = 0; /* Faster selection of loop filter */
sf->search_method = HEX;
sf->iterative_sub_pixel = 0;
}
total_skip = sum;
sum = 0;
- // i starts from 2 to make sure thresh started from 2048
+ /* i starts from 2 to make sure thresh started from 2048 */
for (; i < 1024; i++)
{
sum += cpi->error_bins[i];
cm->filter_type = SIMPLE_LOOPFILTER;
}
- // This has a big hit on quality. Last resort
+ /* This has a big hit on quality. Last resort */
if (Speed >= 15)
sf->half_pixel_search = 0;
}; /* switch */
- // Slow quant, dct and trellis not worthwhile for first pass
- // so make sure they are always turned off.
+ /* Slow quant, dct and trellis not worthwhile for first pass
+ * so make sure they are always turned off.
+ */
if ( cpi->pass == 1 )
{
sf->improved_quant = 0;
CHECK_MEM_ERROR(cpi->tok, vpx_calloc(tokens, sizeof(*cpi->tok)));
}
- // Data used for real time vc mode to see if gf needs refreshing
+ /* Data used for real time vc mode to see if gf needs refreshing */
cpi->inter_zz_count = 0;
cpi->gf_bad_count = 0;
cpi->gf_update_recommended = 0;
- // Structures used to minitor GF usage
+ /* Structures used to minitor GF usage */
vpx_free(cpi->gf_active_flags);
CHECK_MEM_ERROR(cpi->gf_active_flags,
vpx_calloc(1, cm->mb_rows * cm->mb_cols));
}
-// Quant MOD
+/* Quant MOD */
static const int q_trans[] =
{
0, 1, 2, 3, 4, 5, 7, 8,
return i;
return 63;
-};
+}
void vp8_new_frame_rate(VP8_COMP *cpi, double framerate)
{
if(framerate < .1)
cpi->min_frame_bandwidth = (int)(cpi->av_per_frame_bandwidth *
cpi->oxcf.two_pass_vbrmin_section / 100);
- // Set Maximum gf/arf interval
+ /* Set Maximum gf/arf interval */
cpi->max_gf_interval = ((int)(cpi->output_frame_rate / 2.0) + 2);
if(cpi->max_gf_interval < 12)
cpi->max_gf_interval = 12;
- // Extended interval for genuinely static scenes
+ /* Extended interval for genuinely static scenes */
cpi->twopass.static_scene_max_gf_interval = cpi->key_frame_frequency >> 1;
- // Special conditions when altr ref frame enabled in lagged compress mode
+ /* Special conditions when altr ref frame enabled in lagged compress mode */
if (cpi->oxcf.play_alternate && cpi->oxcf.lag_in_frames)
{
if (cpi->max_gf_interval > cpi->oxcf.lag_in_frames - 1)
cpi->ref_frame_rate = cpi->frame_rate;
- // change includes all joint functionality
+ /* change includes all joint functionality */
vp8_change_config(cpi, oxcf);
- // Initialize active best and worst q and average q values.
+ /* Initialize active best and worst q and average q values. */
cpi->active_worst_quality = cpi->oxcf.worst_allowed_q;
cpi->active_best_quality = cpi->oxcf.best_allowed_q;
cpi->avg_frame_qindex = cpi->oxcf.worst_allowed_q;
- // Initialise the starting buffer levels
+ /* Initialise the starting buffer levels */
cpi->buffer_level = cpi->oxcf.starting_buffer_level;
cpi->bits_off_target = cpi->oxcf.starting_buffer_level;
cpi->total_actual_bits = 0;
cpi->total_target_vs_actual = 0;
- // Temporal scalabilty
+ /* Temporal scalabilty */
if (cpi->oxcf.number_of_layers > 1)
{
unsigned int i;
{
LAYER_CONTEXT *lc = &cpi->layer_context[i];
- // Layer configuration
+ /* Layer configuration */
lc->frame_rate =
cpi->output_frame_rate / cpi->oxcf.rate_decimator[i];
lc->target_bandwidth = cpi->oxcf.target_bitrate[i] * 1000;
rescale(oxcf->maximum_buffer_size,
lc->target_bandwidth, 1000);
- // Work out the average size of a frame within this layer
+ /* Work out the average size of a frame within this layer */
if (i > 0)
lc->avg_frame_size_for_layer = (cpi->oxcf.target_bitrate[i] -
cpi->oxcf.target_bitrate[i-1]) * 1000 /
oxcf->maximum_buffer_size_in_ms,
lc->target_bandwidth, 1000);
- // Work out the average size of a frame within this layer
+ /* Work out the average size of a frame within this layer */
if (i > 0)
lc->avg_frame_size_for_layer = (oxcf->target_bitrate[i] -
oxcf->target_bitrate[i-1]) * 1000 /
cpi->ref_frame_flags = VP8_ALTR_FRAME | VP8_GOLD_FRAME | VP8_LAST_FRAME;
- //cpi->use_golden_frame_only = 0;
- //cpi->use_last_frame_only = 0;
cm->refresh_golden_frame = 0;
cm->refresh_last_frame = 1;
cm->refresh_entropy_probs = 1;
cpi->segment_encode_breakout[i] = cpi->oxcf.encode_breakout;
}
- // At the moment the first order values may not be > MAXQ
+ /* At the moment the first order values may not be > MAXQ */
if (cpi->oxcf.fixed_q > MAXQ)
cpi->oxcf.fixed_q = MAXQ;
- // local file playback mode == really big buffer
+ /* local file playback mode == really big buffer */
if (cpi->oxcf.end_usage == USAGE_LOCAL_FILE_PLAYBACK)
{
cpi->oxcf.starting_buffer_level = 60000;
cpi->oxcf.maximum_buffer_size_in_ms = 240000;
}
- // Convert target bandwidth from Kbit/s to Bit/s
+ /* Convert target bandwidth from Kbit/s to Bit/s */
cpi->oxcf.target_bandwidth *= 1000;
cpi->oxcf.starting_buffer_level =
rescale(cpi->oxcf.starting_buffer_level,
cpi->oxcf.target_bandwidth, 1000);
- // Set or reset optimal and maximum buffer levels.
+ /* Set or reset optimal and maximum buffer levels. */
if (cpi->oxcf.optimal_buffer_level == 0)
cpi->oxcf.optimal_buffer_level = cpi->oxcf.target_bandwidth / 8;
else
rescale(cpi->oxcf.maximum_buffer_size,
cpi->oxcf.target_bandwidth, 1000);
- // Set up frame rate and related parameters rate control values.
+ /* Set up frame rate and related parameters rate control values. */
vp8_new_frame_rate(cpi, cpi->frame_rate);
- // Set absolute upper and lower quality limits
+ /* Set absolute upper and lower quality limits */
cpi->worst_quality = cpi->oxcf.worst_allowed_q;
cpi->best_quality = cpi->oxcf.best_allowed_q;
- // active values should only be modified if out of new range
+ /* active values should only be modified if out of new range */
if (cpi->active_worst_quality > cpi->oxcf.worst_allowed_q)
{
cpi->active_worst_quality = cpi->oxcf.worst_allowed_q;
}
- // less likely
+ /* less likely */
else if (cpi->active_worst_quality < cpi->oxcf.best_allowed_q)
{
cpi->active_worst_quality = cpi->oxcf.best_allowed_q;
{
cpi->active_best_quality = cpi->oxcf.best_allowed_q;
}
- // less likely
+ /* less likely */
else if (cpi->active_best_quality > cpi->oxcf.worst_allowed_q)
{
cpi->active_best_quality = cpi->oxcf.worst_allowed_q;
cpi->cq_target_quality = cpi->oxcf.cq_level;
- // Only allow dropped frames in buffered mode
+ /* Only allow dropped frames in buffered mode */
cpi->drop_frames_allowed = cpi->oxcf.allow_df && cpi->buffered_mode;
cpi->target_bandwidth = cpi->oxcf.target_bandwidth;
* correct.
*/
- // VP8 sharpness level mapping 0-7 (vs 0-10 in general VPx dialogs)
+ /* VP8 sharpness level mapping 0-7 (vs 0-10 in general VPx dialogs) */
if (cpi->oxcf.Sharpness > 7)
cpi->oxcf.Sharpness = 7;
Scale2Ratio(cm->horiz_scale, &hr, &hs);
Scale2Ratio(cm->vert_scale, &vr, &vs);
- // always go to the next whole number
+ /* always go to the next whole number */
cm->Width = (hs - 1 + cpi->oxcf.Width * hr) / hs;
cm->Height = (vs - 1 + cpi->oxcf.Height * vr) / vs;
}
cpi->Speed = cpi->oxcf.cpu_used;
- // force to allowlag to 0 if lag_in_frames is 0;
+ /* force to allowlag to 0 if lag_in_frames is 0; */
if (cpi->oxcf.lag_in_frames == 0)
{
cpi->oxcf.allow_lag = 0;
}
- // Limit on lag buffers as these are not currently dynamically allocated
+ /* Limit on lag buffers as these are not currently dynamically allocated */
else if (cpi->oxcf.lag_in_frames > MAX_LAG_BUFFERS)
cpi->oxcf.lag_in_frames = MAX_LAG_BUFFERS;
- // YX Temp
+ /* YX Temp */
cpi->alt_ref_source = NULL;
cpi->is_src_frame_alt_ref = 0;
#endif
#if 0
- // Experimental RD Code
+ /* Experimental RD Code */
cpi->frame_distortion = 0;
cpi->last_frame_distortion = 0;
#endif
VP8_COMMON *cm;
cpi = vpx_memalign(32, sizeof(VP8_COMP));
- // Check that the CPI instance is valid
+ /* Check that the CPI instance is valid */
if (!cpi)
return 0;
cpi->prob_gf_coded = 128;
cpi->prob_intra_coded = 63;
- // Prime the recent reference frame usage counters.
- // Hereafter they will be maintained as a sort of moving average
+ /* Prime the recent reference frame usage counters.
+ * Hereafter they will be maintained as a sort of moving average
+ */
cpi->recent_ref_frame_usage[INTRA_FRAME] = 1;
cpi->recent_ref_frame_usage[LAST_FRAME] = 1;
cpi->recent_ref_frame_usage[GOLDEN_FRAME] = 1;
cpi->recent_ref_frame_usage[ALTREF_FRAME] = 1;
- // Set reference frame sign bias for ALTREF frame to 1 (for now)
+ /* Set reference frame sign bias for ALTREF frame to 1 (for now) */
cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 1;
cpi->twopass.gf_decay_rate = 0;
cpi->alt_is_last = 0 ;
cpi->gold_is_alt = 0 ;
- // allocate memory for storing last frame's MVs for MV prediction.
+ /* allocate memory for storing last frame's MVs for MV prediction. */
CHECK_MEM_ERROR(cpi->lfmv, vpx_calloc((cpi->common.mb_rows+2) * (cpi->common.mb_cols+2), sizeof(int_mv)));
CHECK_MEM_ERROR(cpi->lf_ref_frame_sign_bias, vpx_calloc((cpi->common.mb_rows+2) * (cpi->common.mb_cols+2), sizeof(int)));
CHECK_MEM_ERROR(cpi->lf_ref_frame, vpx_calloc((cpi->common.mb_rows+2) * (cpi->common.mb_cols+2), sizeof(int)));
- // Create the encoder segmentation map and set all entries to 0
+ /* Create the encoder segmentation map and set all entries to 0 */
CHECK_MEM_ERROR(cpi->segmentation_map, vpx_calloc(cpi->common.mb_rows * cpi->common.mb_cols, 1));
+
CHECK_MEM_ERROR(cpi->active_map, vpx_calloc(cpi->common.mb_rows * cpi->common.mb_cols, 1));
vpx_memset(cpi->active_map , 1, (cpi->common.mb_rows * cpi->common.mb_cols));
cpi->active_map_enabled = 0;
#if 0
- // Experimental code for lagged and one pass
- // Initialise one_pass GF frames stats
- // Update stats used for GF selection
+ /* Experimental code for lagged and one pass */
+ /* Initialise one_pass GF frames stats */
+ /* Update stats used for GF selection */
if (cpi->pass == 0)
{
cpi->one_pass_frame_index = 0;
}
#endif
- // Should we use the cyclic refresh method.
- // Currently this is tied to error resilliant mode
+ /* Should we use the cyclic refresh method.
+ * Currently this is tied to error resilliant mode
+ */
cpi->cyclic_refresh_mode_enabled = cpi->oxcf.error_resilient_mode;
cpi->cyclic_refresh_mode_max_mbs_perframe = (cpi->common.mb_rows * cpi->common.mb_cols) / 40;
cpi->cyclic_refresh_mode_index = 0;
else
cpi->cyclic_refresh_map = (signed char *) NULL;
- // Test function for segmentation
- //segmentation_test_function( cpi);
-
#ifdef ENTROPY_STATS
init_context_counters();
#endif
/*Initialize the feed-forward activity masking.*/
cpi->activity_avg = 90<<12;
- cpi->frames_since_key = 8; // Give a sensible default for the first frame.
+ /* Give a sensible default for the first frame. */
+ cpi->frames_since_key = 8;
cpi->key_frame_frequency = cpi->oxcf.key_freq;
cpi->this_key_frame_forced = 0;
cpi->next_key_frame_forced = 0;
#endif
-#ifndef LLONG_MAX
-#define LLONG_MAX 9223372036854775807LL
-#endif
- cpi->first_time_stamp_ever = LLONG_MAX;
+ cpi->first_time_stamp_ever = 0x7FFFFFFF;
cpi->frames_till_gf_update_due = 0;
cpi->key_frame_count = 1;
if (cpi->compressor_speed == 2)
{
- cpi->cpu_freq = 0; //vp8_get_processor_freq();
cpi->avg_encode_time = 0;
cpi->avg_pick_mode_time = 0;
}
vp8_set_speed_features(cpi);
- // Set starting values of RD threshold multipliers (128 = *1)
+ /* Set starting values of RD threshold multipliers (128 = *1) */
for (i = 0; i < MAX_MODES; i++)
{
cpi->rd_thresh_mult[i] = 128;
cpi->diamond_search_sad = vp8_diamond_search_sad;
cpi->refining_search_sad = vp8_refining_search_sad;
- // make sure frame 1 is okay
+ /* make sure frame 1 is okay */
cpi->error_bins[0] = cpi->common.MBs;
- //vp8cx_init_quantizer() is first called here. Add check in vp8cx_frame_init_quantizer() so that vp8cx_init_quantizer is only called later
- //when needed. This will avoid unnecessary calls of vp8cx_init_quantizer() for every frame.
+ /* vp8cx_init_quantizer() is first called here. Add check in
+ * vp8cx_frame_init_quantizer() so that vp8cx_init_quantizer is only
+ * called later when needed. This will avoid unnecessary calls of
+ * vp8cx_init_quantizer() for every frame.
+ */
vp8cx_init_quantizer(cpi);
vp8_loop_filter_init(cm);
fprintf(f, "%5d", frames_at_speed[i]);
fprintf(f, "\n");
- //fprintf(f, "%10d PM %10d %10d %10d EF %10d %10d %10d\n", cpi->Speed, cpi->avg_pick_mode_time, (tot_pm/cnt_pm), cnt_pm, cpi->avg_encode_time, 0, 0);
fclose(f);
}
for (i = 0; i < 10; i++)
{
- fprintf(fmode, " { //Above Mode : %d\n", i);
+ fprintf(fmode, " { /* Above Mode : %d */\n", i);
for (j = 0; j < 10; j++)
{
fprintf(fmode, " %5d, ", intra_mode_stats[i][j][k]);
}
- fprintf(fmode, "}, // left_mode %d\n", j);
+ fprintf(fmode, "}, /* left_mode %d */\n", j);
}
{
VP8_COMMON *cm = &cpi->common;
- // are we resizing the image
+ /* are we resizing the image */
if (cm->horiz_scale != 0 || cm->vert_scale != 0)
{
#if CONFIG_SPATIAL_RESAMPLING
#if CONFIG_SPATIAL_RESAMPLING
VP8_COMMON *cm = &cpi->common;
- // Do we need to apply resampling for one pass cbr.
- // In one pass this is more limited than in two pass cbr
- // The test and any change is only made one per key frame sequence
+ /* Do we need to apply resampling for one pass cbr.
+ * In one pass this is more limited than in two pass cbr
+ * The test and any change is only made one per key frame sequence
+ */
if (cpi->oxcf.allow_spatial_resampling && (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER))
{
int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
int new_width, new_height;
- // If we are below the resample DOWN watermark then scale down a notch.
+ /* If we are below the resample DOWN watermark then scale down a
+ * notch.
+ */
if (cpi->buffer_level < (cpi->oxcf.resample_down_water_mark * cpi->oxcf.optimal_buffer_level / 100))
{
cm->horiz_scale = (cm->horiz_scale < ONETWO) ? cm->horiz_scale + 1 : ONETWO;
cm->vert_scale = (cm->vert_scale < ONETWO) ? cm->vert_scale + 1 : ONETWO;
}
- // Should we now start scaling back up
+ /* Should we now start scaling back up */
else if (cpi->buffer_level > (cpi->oxcf.resample_up_water_mark * cpi->oxcf.optimal_buffer_level / 100))
{
cm->horiz_scale = (cm->horiz_scale > NORMAL) ? cm->horiz_scale - 1 : NORMAL;
cm->vert_scale = (cm->vert_scale > NORMAL) ? cm->vert_scale - 1 : NORMAL;
}
- // Get the new hieght and width
+ /* Get the new hieght and width */
Scale2Ratio(cm->horiz_scale, &hr, &hs);
Scale2Ratio(cm->vert_scale, &vr, &vs);
new_width = ((hs - 1) + (cpi->oxcf.Width * hr)) / hs;
new_height = ((vs - 1) + (cpi->oxcf.Height * vr)) / vs;
- // If the image size has changed we need to reallocate the buffers
- // and resample the source image
+ /* If the image size has changed we need to reallocate the buffers
+ * and resample the source image
+ */
if ((cm->Width != new_width) || (cm->Height != new_height))
{
cm->Width = new_width;
{
VP8_COMMON *cm = &cpi->common;
- // Select an interval before next GF or altref
+ /* Select an interval before next GF or altref */
if (!cpi->auto_gold)
cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
{
cpi->current_gf_interval = cpi->frames_till_gf_update_due;
- // Set the bits per frame that we should try and recover in subsequent inter frames
- // to account for the extra GF spend... note that his does not apply for GF updates
- // that occur coincident with a key frame as the extra cost of key frames is dealt
- // with elsewhere.
-
+ /* Set the bits per frame that we should try and recover in
+ * subsequent inter frames to account for the extra GF spend...
+ * note that his does not apply for GF updates that occur
+ * coincident with a key frame as the extra cost of key frames is
+ * dealt with elsewhere.
+ */
cpi->gf_overspend_bits += cpi->projected_frame_size;
cpi->non_gf_bitrate_adjustment = cpi->gf_overspend_bits / cpi->frames_till_gf_update_due;
}
- // Update data structure that monitors level of reference to last GF
+ /* Update data structure that monitors level of reference to last GF */
vpx_memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
- // this frame refreshes means next frames don't unless specified by user
+ /* this frame refreshes means next frames don't unless specified by user */
cpi->common.frames_since_golden = 0;
- // Clear the alternate reference update pending flag.
+ /* Clear the alternate reference update pending flag. */
cpi->source_alt_ref_pending = 0;
- // Set the alternate refernce frame active flag
+ /* Set the alternate refernce frame active flag */
cpi->source_alt_ref_active = 1;
{
VP8_COMMON *cm = &cpi->common;
- // Update the Golden frame usage counts.
+ /* Update the Golden frame usage counts. */
if (cm->refresh_golden_frame)
{
- // Select an interval before next GF
+ /* Select an interval before next GF */
if (!cpi->auto_gold)
cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
{
cpi->current_gf_interval = cpi->frames_till_gf_update_due;
- // Set the bits per frame that we should try and recover in subsequent inter frames
- // to account for the extra GF spend... note that his does not apply for GF updates
- // that occur coincident with a key frame as the extra cost of key frames is dealt
- // with elsewhere.
+ /* Set the bits per frame that we should try and recover in
+ * subsequent inter frames to account for the extra GF spend...
+ * note that his does not apply for GF updates that occur
+ * coincident with a key frame as the extra cost of key frames
+ * is dealt with elsewhere.
+ */
if ((cm->frame_type != KEY_FRAME) && !cpi->source_alt_ref_active)
{
- // Calcluate GF bits to be recovered
- // Projected size - av frame bits available for inter frames for clip as a whole
+ /* Calcluate GF bits to be recovered
+ * Projected size - av frame bits available for inter
+ * frames for clip as a whole
+ */
cpi->gf_overspend_bits += (cpi->projected_frame_size - cpi->inter_frame_target);
}
}
- // Update data structure that monitors level of reference to last GF
+ /* Update data structure that monitors level of reference to last GF */
vpx_memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
- // this frame refreshes means next frames don't unless specified by user
+ /* this frame refreshes means next frames don't unless specified by
+ * user
+ */
cm->refresh_golden_frame = 0;
cpi->common.frames_since_golden = 0;
- //if ( cm->frame_type == KEY_FRAME )
- //{
cpi->recent_ref_frame_usage[INTRA_FRAME] = 1;
cpi->recent_ref_frame_usage[LAST_FRAME] = 1;
cpi->recent_ref_frame_usage[GOLDEN_FRAME] = 1;
cpi->recent_ref_frame_usage[ALTREF_FRAME] = 1;
- //}
- //else
- //{
- // // Carry a potrtion of count over to begining of next gf sequence
- // cpi->recent_ref_frame_usage[INTRA_FRAME] >>= 5;
- // cpi->recent_ref_frame_usage[LAST_FRAME] >>= 5;
- // cpi->recent_ref_frame_usage[GOLDEN_FRAME] >>= 5;
- // cpi->recent_ref_frame_usage[ALTREF_FRAME] >>= 5;
- //}
-
- // ******** Fixed Q test code only ************
- // If we are going to use the ALT reference for the next group of frames set a flag to say so.
+
+ /* ******** Fixed Q test code only ************ */
+ /* If we are going to use the ALT reference for the next group of
+ * frames set a flag to say so.
+ */
if (cpi->oxcf.fixed_q >= 0 &&
cpi->oxcf.play_alternate && !cpi->common.refresh_alt_ref_frame)
{
if (!cpi->source_alt_ref_pending)
cpi->source_alt_ref_active = 0;
- // Decrement count down till next gf
+ /* Decrement count down till next gf */
if (cpi->frames_till_gf_update_due > 0)
cpi->frames_till_gf_update_due--;
}
else if (!cpi->common.refresh_alt_ref_frame)
{
- // Decrement count down till next gf
+ /* Decrement count down till next gf */
if (cpi->frames_till_gf_update_due > 0)
cpi->frames_till_gf_update_due--;
}
}
-// This function updates the reference frame probability estimates that
-// will be used during mode selection
+/* This function updates the reference frame probability estimates that
+ * will be used during mode selection
+ */
static void update_rd_ref_frame_probs(VP8_COMP *cpi)
{
VP8_COMMON *cm = &cpi->common;
cpi->prob_gf_coded = 128;
}
- // update reference frame costs since we can do better than what we got last frame.
+ /* update reference frame costs since we can do better than what we got
+ * last frame.
+ */
if (cpi->oxcf.number_of_layers == 1)
{
if (cpi->common.refresh_alt_ref_frame)
}
-// 1 = key, 0 = inter
+/* 1 = key, 0 = inter */
static int decide_key_frame(VP8_COMP *cpi)
{
VP8_COMMON *cm = &cpi->common;
if (cpi->Speed > 11)
return 0;
- // Clear down mmx registers
- vp8_clear_system_state(); //__asm emms;
+ /* Clear down mmx registers */
+ vp8_clear_system_state();
if ((cpi->compressor_speed == 2) && (cpi->Speed >= 5) && (cpi->sf.RD == 0))
{
}
- // If the following are true we might as well code a key frame
+ /* If the following are true we might as well code a key frame */
if (((cpi->this_frame_percent_intra == 100) &&
(cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra + 2))) ||
((cpi->this_frame_percent_intra > 95) &&
{
code_key_frame = 1;
}
- // in addition if the following are true and this is not a golden frame then code a key frame
- // Note that on golden frames there often seems to be a pop in intra useage anyway hence this
- // restriction is designed to prevent spurious key frames. The Intra pop needs to be investigated.
+ /* in addition if the following are true and this is not a golden frame
+ * then code a key frame Note that on golden frames there often seems
+ * to be a pop in intra useage anyway hence this restriction is
+ * designed to prevent spurious key frames. The Intra pop needs to be
+ * investigated.
+ */
else if (((cpi->this_frame_percent_intra > 60) &&
(cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra * 2))) ||
((cpi->this_frame_percent_intra > 75) &&
void write_cx_frame_to_file(YV12_BUFFER_CONFIG *frame, int this_frame)
{
- // write the frame
+ /* write the frame */
FILE *yframe;
int i;
char filename[255];
fclose(yframe);
}
#endif
-// return of 0 means drop frame
+/* return of 0 means drop frame */
-// Function to test for conditions that indeicate we should loop
-// back and recode a frame.
+/* Function to test for conditions that indeicate we should loop
+ * back and recode a frame.
+ */
static int recode_loop_test( VP8_COMP *cpi,
int high_limit, int low_limit,
int q, int maxq, int minq )
int force_recode = 0;
VP8_COMMON *cm = &cpi->common;
- // Is frame recode allowed at all
- // Yes if either recode mode 1 is selected or mode two is selcted
- // and the frame is a key frame. golden frame or alt_ref_frame
+ /* Is frame recode allowed at all
+ * Yes if either recode mode 1 is selected or mode two is selcted
+ * and the frame is a key frame. golden frame or alt_ref_frame
+ */
if ( (cpi->sf.recode_loop == 1) ||
( (cpi->sf.recode_loop == 2) &&
( (cm->frame_type == KEY_FRAME) ||
cm->refresh_golden_frame ||
cm->refresh_alt_ref_frame ) ) )
{
- // General over and under shoot tests
+ /* General over and under shoot tests */
if ( ((cpi->projected_frame_size > high_limit) && (q < maxq)) ||
((cpi->projected_frame_size < low_limit) && (q > minq)) )
{
force_recode = 1;
}
- // Special Constrained quality tests
+ /* Special Constrained quality tests */
else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
{
- // Undershoot and below auto cq level
+ /* Undershoot and below auto cq level */
if ( (q > cpi->cq_target_quality) &&
(cpi->projected_frame_size <
((cpi->this_frame_target * 7) >> 3)))
{
force_recode = 1;
}
- // Severe undershoot and between auto and user cq level
+ /* Severe undershoot and between auto and user cq level */
else if ( (q > cpi->oxcf.cq_level) &&
(cpi->projected_frame_size < cpi->min_frame_bandwidth) &&
(cpi->active_best_quality > cpi->oxcf.cq_level))
{
YV12_BUFFER_CONFIG *yv12_fb = cm->yv12_fb;
- // At this point the new frame has been encoded.
- // If any buffer copy / swapping is signaled it should be done here.
+ /* At this point the new frame has been encoded.
+ * If any buffer copy / swapping is signaled it should be done here.
+ */
if (cm->frame_type == KEY_FRAME)
{
int drop_mark25 = drop_mark / 8;
- // Clear down mmx registers to allow floating point in what follows
+ /* Clear down mmx registers to allow floating point in what follows */
vp8_clear_system_state();
#if CONFIG_MULTITHREAD
}
#endif
- // Test code for segmentation of gf/arf (0,0)
- //segmentation_test_function( cpi);
-
if(cpi->force_next_frame_intra)
{
cm->frame_type = KEY_FRAME; /* delayed intra frame */
cpi->force_next_frame_intra = 0;
}
- // For an alt ref frame in 2 pass we skip the call to the second pass function that sets the target bandwidth
+ /* For an alt ref frame in 2 pass we skip the call to the second pass
+ * function that sets the target bandwidth
+ */
#if !(CONFIG_REALTIME_ONLY)
if (cpi->pass == 2)
{
if (cpi->common.refresh_alt_ref_frame)
{
- cpi->per_frame_bandwidth = cpi->twopass.gf_bits; // Per frame bit target for the alt ref frame
- cpi->target_bandwidth = cpi->twopass.gf_bits * cpi->output_frame_rate; // per second target bitrate
+ /* Per frame bit target for the alt ref frame */
+ cpi->per_frame_bandwidth = cpi->twopass.gf_bits;
+ /* per second target bitrate */
+ cpi->target_bandwidth = cpi->twopass.gf_bits * cpi->output_frame_rate;
}
}
else
#endif
cpi->per_frame_bandwidth = (int)(cpi->target_bandwidth / cpi->output_frame_rate);
- // Default turn off buffer to buffer copying
+ /* Default turn off buffer to buffer copying */
cm->copy_buffer_to_gf = 0;
cm->copy_buffer_to_arf = 0;
- // Clear zbin over-quant value and mode boost values.
+ /* Clear zbin over-quant value and mode boost values. */
cpi->zbin_over_quant = 0;
cpi->zbin_mode_boost = 0;
- // Enable or disable mode based tweaking of the zbin
- // For 2 Pass Only used where GF/ARF prediction quality
- // is above a threshold
+ /* Enable or disable mode based tweaking of the zbin
+ * For 2 Pass Only used where GF/ARF prediction quality
+ * is above a threshold
+ */
cpi->zbin_mode_boost_enabled = 1;
if (cpi->pass == 2)
{
}
}
- // Current default encoder behaviour for the altref sign bias
+ /* Current default encoder behaviour for the altref sign bias */
if (cpi->source_alt_ref_active)
cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 1;
else
cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 0;
- // Check to see if a key frame is signalled
- // For two pass with auto key frame enabled cm->frame_type may already be set, but not for one pass.
+ /* Check to see if a key frame is signalled
+ * For two pass with auto key frame enabled cm->frame_type may already
+ * be set, but not for one pass.
+ */
if ((cm->current_video_frame == 0) ||
(cm->frame_flags & FRAMEFLAGS_KEY) ||
(cpi->oxcf.auto_key && (cpi->frames_since_key % cpi->key_frame_frequency == 0)))
{
- // Key frame from VFW/auto-keyframe/first frame
+ /* Key frame from VFW/auto-keyframe/first frame */
cm->frame_type = KEY_FRAME;
}
}
#endif
- // Set default state for segment and mode based loop filter update flags
- cpi->mb.e_mbd.update_mb_segmentation_map = 0;
- cpi->mb.e_mbd.update_mb_segmentation_data = 0;
- cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
-
- // Set various flags etc to special state if it is a key frame
+ /* Set various flags etc to special state if it is a key frame */
if (cm->frame_type == KEY_FRAME)
{
int i;
- // Reset the loop filter deltas and segmentation map
+ // Set the loop filter deltas and segmentation map update
setup_features(cpi);
- // If segmentation is enabled force a map update for key frames
- if (cpi->mb.e_mbd.segmentation_enabled)
- {
- cpi->mb.e_mbd.update_mb_segmentation_map = 1;
- cpi->mb.e_mbd.update_mb_segmentation_data = 1;
- }
-
- // The alternate reference frame cannot be active for a key frame
+ /* The alternate reference frame cannot be active for a key frame */
cpi->source_alt_ref_active = 0;
- // Reset the RD threshold multipliers to default of * 1 (128)
+ /* Reset the RD threshold multipliers to default of * 1 (128) */
for (i = 0; i < MAX_MODES; i++)
{
cpi->rd_thresh_mult[i] = 128;
}
}
- // Test code for segmentation
- //if ( (cm->frame_type == KEY_FRAME) || ((cm->current_video_frame % 2) == 0))
- //if ( (cm->current_video_frame % 2) == 0 )
- // enable_segmentation(cpi);
- //else
- // disable_segmentation(cpi);
-
#if 0
- // Experimental code for lagged compress and one pass
- // Initialise one_pass GF frames stats
- // Update stats used for GF selection
- //if ( cpi->pass == 0 )
+ /* Experimental code for lagged compress and one pass
+ * Initialise one_pass GF frames stats
+ * Update stats used for GF selection
+ */
{
cpi->one_pass_frame_index = cm->current_video_frame % MAX_LAG_BUFFERS;
if (cpi->drop_frames_allowed)
{
- // The reset to decimation 0 is only done here for one pass.
- // Once it is set two pass leaves decimation on till the next kf.
+ /* The reset to decimation 0 is only done here for one pass.
+ * Once it is set two pass leaves decimation on till the next kf.
+ */
if ((cpi->buffer_level > drop_mark) && (cpi->decimation_factor > 0))
cpi->decimation_factor --;
{
cpi->decimation_factor = 1;
}
- //vpx_log("Encoder: Decimation Factor: %d \n",cpi->decimation_factor);
}
- // The following decimates the frame rate according to a regular pattern (i.e. to 1/2 or 2/3 frame rate)
- // This can be used to help prevent buffer under-run in CBR mode. Alternatively it might be desirable in
- // some situations to drop frame rate but throw more bits at each frame.
- //
- // Note that dropping a key frame can be problematic if spatial resampling is also active
+ /* The following decimates the frame rate according to a regular
+ * pattern (i.e. to 1/2 or 2/3 frame rate) This can be used to help
+ * prevent buffer under-run in CBR mode. Alternatively it might be
+ * desirable in some situations to drop frame rate but throw more bits
+ * at each frame.
+ *
+ * Note that dropping a key frame can be problematic if spatial
+ * resampling is also active
+ */
if (cpi->decimation_factor > 0)
{
switch (cpi->decimation_factor)
break;
}
- // Note that we should not throw out a key frame (especially when spatial resampling is enabled).
- if ((cm->frame_type == KEY_FRAME)) // && cpi->oxcf.allow_spatial_resampling )
+ /* Note that we should not throw out a key frame (especially when
+ * spatial resampling is enabled).
+ */
+ if ((cm->frame_type == KEY_FRAME))
{
cpi->decimation_count = cpi->decimation_factor;
}
{
unsigned int i;
- // Propagate bits saved by dropping the frame to higher layers
+ /* Propagate bits saved by dropping the frame to higher
+ * layers
+ */
for (i=cpi->current_layer+1; i<cpi->oxcf.number_of_layers; i++)
{
LAYER_CONTEXT *lc = &cpi->layer_context[i];
else
cpi->decimation_count = cpi->decimation_factor;
}
+ else
+ cpi->decimation_count = 0;
- // Decide how big to make the frame
+ /* Decide how big to make the frame */
if (!vp8_pick_frame_size(cpi))
{
cm->current_video_frame++;
return;
}
- // Reduce active_worst_allowed_q for CBR if our buffer is getting too full.
- // This has a knock on effect on active best quality as well.
- // For CBR if the buffer reaches its maximum level then we can no longer
- // save up bits for later frames so we might as well use them up
- // on the current frame.
+ /* Reduce active_worst_allowed_q for CBR if our buffer is getting too full.
+ * This has a knock on effect on active best quality as well.
+ * For CBR if the buffer reaches its maximum level then we can no longer
+ * save up bits for later frames so we might as well use them up
+ * on the current frame.
+ */
if ((cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
(cpi->buffer_level >= cpi->oxcf.optimal_buffer_level) && cpi->buffered_mode)
{
- int Adjustment = cpi->active_worst_quality / 4; // Max adjustment is 1/4
+ /* Max adjustment is 1/4 */
+ int Adjustment = cpi->active_worst_quality / 4;
if (Adjustment)
{
}
}
- // Set an active best quality and if necessary active worst quality
- // There is some odd behavior for one pass here that needs attention.
+ /* Set an active best quality and if necessary active worst quality
+ * There is some odd behavior for one pass here that needs attention.
+ */
if ( (cpi->pass == 2) || (cpi->ni_frames > 150))
{
vp8_clear_system_state();
else
cpi->active_best_quality = kf_high_motion_minq[Q];
- // Special case for key frames forced because we have reached
- // the maximum key frame interval. Here force the Q to a range
- // based on the ambient Q to reduce the risk of popping
+ /* Special case for key frames forced because we have reached
+ * the maximum key frame interval. Here force the Q to a range
+ * based on the ambient Q to reduce the risk of popping
+ */
if ( cpi->this_key_frame_forced )
{
if ( cpi->active_best_quality > cpi->avg_frame_qindex * 7/8)
cpi->active_best_quality = cpi->avg_frame_qindex >> 2;
}
}
- // One pass more conservative
+ /* One pass more conservative */
else
cpi->active_best_quality = kf_high_motion_minq[Q];
}
else if (cpi->oxcf.number_of_layers==1 &&
(cm->refresh_golden_frame || cpi->common.refresh_alt_ref_frame))
{
- // Use the lower of cpi->active_worst_quality and recent
- // average Q as basis for GF/ARF Q limit unless last frame was
- // a key frame.
+ /* Use the lower of cpi->active_worst_quality and recent
+ * average Q as basis for GF/ARF Q limit unless last frame was
+ * a key frame.
+ */
if ( (cpi->frames_since_key > 1) &&
(cpi->avg_frame_qindex < cpi->active_worst_quality) )
{
Q = cpi->avg_frame_qindex;
}
- // For constrained quality dont allow Q less than the cq level
+ /* For constrained quality dont allow Q less than the cq level */
if ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
(Q < cpi->cq_target_quality) )
{
else
cpi->active_best_quality = gf_mid_motion_minq[Q];
- // Constrained quality use slightly lower active best.
+ /* Constrained quality use slightly lower active best. */
if ( cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY )
{
cpi->active_best_quality =
cpi->active_best_quality * 15/16;
}
}
- // One pass more conservative
+ /* One pass more conservative */
else
cpi->active_best_quality = gf_high_motion_minq[Q];
}
{
cpi->active_best_quality = inter_minq[Q];
- // For the constant/constrained quality mode we dont want
- // q to fall below the cq level.
+ /* For the constant/constrained quality mode we dont want
+ * q to fall below the cq level.
+ */
if ((cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
(cpi->active_best_quality < cpi->cq_target_quality) )
{
- // If we are strongly undershooting the target rate in the last
- // frames then use the user passed in cq value not the auto
- // cq value.
+ /* If we are strongly undershooting the target rate in the last
+ * frames then use the user passed in cq value not the auto
+ * cq value.
+ */
if ( cpi->rolling_actual_bits < cpi->min_frame_bandwidth )
cpi->active_best_quality = cpi->oxcf.cq_level;
else
}
}
- // If CBR and the buffer is as full then it is reasonable to allow
- // higher quality on the frames to prevent bits just going to waste.
+ /* If CBR and the buffer is as full then it is reasonable to allow
+ * higher quality on the frames to prevent bits just going to waste.
+ */
if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
{
- // Note that the use of >= here elliminates the risk of a devide
- // by 0 error in the else if clause
+ /* Note that the use of >= here elliminates the risk of a devide
+ * by 0 error in the else if clause
+ */
if (cpi->buffer_level >= cpi->oxcf.maximum_buffer_size)
cpi->active_best_quality = cpi->best_quality;
}
}
}
- // Make sure constrained quality mode limits are adhered to for the first
- // few frames of one pass encodes
+ /* Make sure constrained quality mode limits are adhered to for the first
+ * few frames of one pass encodes
+ */
else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
{
if ( (cm->frame_type == KEY_FRAME) ||
}
}
- // Clip the active best and worst quality values to limits
+ /* Clip the active best and worst quality values to limits */
if (cpi->active_worst_quality > cpi->worst_quality)
cpi->active_worst_quality = cpi->worst_quality;
if ( cpi->active_worst_quality < cpi->active_best_quality )
cpi->active_worst_quality = cpi->active_best_quality;
- // Determine initial Q to try
+ /* Determine initial Q to try */
Q = vp8_regulate_q(cpi, cpi->this_frame_target);
#if !(CONFIG_REALTIME_ONLY)
- // Set highest allowed value for Zbin over quant
+ /* Set highest allowed value for Zbin over quant */
if (cm->frame_type == KEY_FRAME)
- zbin_oq_high = 0; //ZBIN_OQ_MAX/16
+ zbin_oq_high = 0;
else if ((cpi->oxcf.number_of_layers == 1) && ((cm->refresh_alt_ref_frame ||
(cm->refresh_golden_frame && !cpi->source_alt_ref_active))))
{
zbin_oq_high = ZBIN_OQ_MAX;
#endif
- // Setup background Q adjustment for error resilient mode.
- // For multi-layer encodes only enable this for the base layer.
+ /* Setup background Q adjustment for error resilient mode.
+ * For multi-layer encodes only enable this for the base layer.
+ */
if (cpi->cyclic_refresh_mode_enabled && (cpi->current_layer==0))
cyclic_background_refresh(cpi, Q, 0);
vp8_compute_frame_size_bounds(cpi, &frame_under_shoot_limit, &frame_over_shoot_limit);
#if !(CONFIG_REALTIME_ONLY)
- // Limit Q range for the adaptive loop.
+ /* Limit Q range for the adaptive loop. */
bottom_index = cpi->active_best_quality;
top_index = cpi->active_worst_quality;
q_low = cpi->active_best_quality;
do
{
- vp8_clear_system_state(); //__asm emms;
-
- /*
- if(cpi->is_src_frame_alt_ref)
- Q = 127;
- */
+ vp8_clear_system_state();
vp8_set_quantizer(cpi, Q);
- // setup skip prob for costing in mode/mv decision
+ /* setup skip prob for costing in mode/mv decision */
if (cpi->common.mb_no_coeff_skip)
{
cpi->prob_skip_false = cpi->base_skip_false_prob[Q];
*/
}
- //as this is for cost estimate, let's make sure it does not go extreme eitehr way
+ /* as this is for cost estimate, let's make sure it does not
+ * go extreme eitehr way
+ */
if (cpi->prob_skip_false < 5)
cpi->prob_skip_false = 5;
if (cm->refresh_entropy_probs == 0)
{
- // save a copy for later refresh
+ /* save a copy for later refresh */
vpx_memcpy(&cm->lfc, &cm->fc, sizeof(cm->fc));
}
vp8_update_coef_probs(cpi);
- // transform / motion compensation build reconstruction frame
- // +pack coef partitions
+ /* transform / motion compensation build reconstruction frame
+ * +pack coef partitions
+ */
vp8_encode_frame(cpi);
/* cpi->projected_frame_size is not needed for RT mode */
}
#else
- // transform / motion compensation build reconstruction frame
+ /* transform / motion compensation build reconstruction frame */
vp8_encode_frame(cpi);
cpi->projected_frame_size -= vp8_estimate_entropy_savings(cpi);
cpi->projected_frame_size = (cpi->projected_frame_size > 0) ? cpi->projected_frame_size : 0;
#endif
- vp8_clear_system_state(); //__asm emms;
+ vp8_clear_system_state();
- // Test to see if the stats generated for this frame indicate that we should have coded a key frame
- // (assuming that we didn't)!
+ /* Test to see if the stats generated for this frame indicate that
+ * we should have coded a key frame (assuming that we didn't)!
+ */
if (cpi->pass != 2 && cpi->oxcf.auto_key && cm->frame_type != KEY_FRAME)
{
int key_frame_decision = decide_key_frame(cpi);
#if !(CONFIG_REALTIME_ONLY)
else if (key_frame_decision)
{
- // Reset all our sizing numbers and recode
+ /* Reset all our sizing numbers and recode */
cm->frame_type = KEY_FRAME;
vp8_pick_frame_size(cpi);
- // Clear the Alt reference frame active flag when we have a key frame
+ /* Clear the Alt reference frame active flag when we have
+ * a key frame
+ */
cpi->source_alt_ref_active = 0;
- // Reset the loop filter deltas and segmentation map
+ // Set the loop filter deltas and segmentation map update
setup_features(cpi);
- // If segmentation is enabled force a map update for key frames
- if (cpi->mb.e_mbd.segmentation_enabled)
- {
- cpi->mb.e_mbd.update_mb_segmentation_map = 1;
- cpi->mb.e_mbd.update_mb_segmentation_data = 1;
- }
-
vp8_restore_coding_context(cpi);
Q = vp8_regulate_q(cpi, cpi->this_frame_target);
vp8_compute_frame_size_bounds(cpi, &frame_under_shoot_limit, &frame_over_shoot_limit);
- // Limit Q range for the adaptive loop.
+ /* Limit Q range for the adaptive loop. */
bottom_index = cpi->active_best_quality;
top_index = cpi->active_worst_quality;
q_low = cpi->active_best_quality;
if (frame_over_shoot_limit == 0)
frame_over_shoot_limit = 1;
- // Are we are overshooting and up against the limit of active max Q.
+ /* Are we are overshooting and up against the limit of active max Q. */
if (((cpi->pass != 2) || (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)) &&
(Q == cpi->active_worst_quality) &&
(cpi->active_worst_quality < cpi->worst_quality) &&
{
int over_size_percent = ((cpi->projected_frame_size - frame_over_shoot_limit) * 100) / frame_over_shoot_limit;
- // If so is there any scope for relaxing it
+ /* If so is there any scope for relaxing it */
while ((cpi->active_worst_quality < cpi->worst_quality) && (over_size_percent > 0))
{
cpi->active_worst_quality++;
-
- over_size_percent = (int)(over_size_percent * 0.96); // Assume 1 qstep = about 4% on frame size.
+ /* Assume 1 qstep = about 4% on frame size. */
+ over_size_percent = (int)(over_size_percent * 0.96);
}
#if !(CONFIG_REALTIME_ONLY)
top_index = cpi->active_worst_quality;
#endif
- // If we have updated the active max Q do not call vp8_update_rate_correction_factors() this loop.
+ /* If we have updated the active max Q do not call
+ * vp8_update_rate_correction_factors() this loop.
+ */
active_worst_qchanged = 1;
}
else
active_worst_qchanged = 0;
#if !(CONFIG_REALTIME_ONLY)
- // Special case handling for forced key frames
+ /* Special case handling for forced key frames */
if ( (cm->frame_type == KEY_FRAME) && cpi->this_key_frame_forced )
{
int last_q = Q;
int kf_err = vp8_calc_ss_err(cpi->Source,
&cm->yv12_fb[cm->new_fb_idx]);
- // The key frame is not good enough
+ /* The key frame is not good enough */
if ( kf_err > ((cpi->ambient_err * 7) >> 3) )
{
- // Lower q_high
+ /* Lower q_high */
q_high = (Q > q_low) ? (Q - 1) : q_low;
- // Adjust Q
+ /* Adjust Q */
Q = (q_high + q_low) >> 1;
}
- // The key frame is much better than the previous frame
+ /* The key frame is much better than the previous frame */
else if ( kf_err < (cpi->ambient_err >> 1) )
{
- // Raise q_low
+ /* Raise q_low */
q_low = (Q < q_high) ? (Q + 1) : q_high;
- // Adjust Q
+ /* Adjust Q */
Q = (q_high + q_low + 1) >> 1;
}
- // Clamp Q to upper and lower limits:
+ /* Clamp Q to upper and lower limits: */
if (Q > q_high)
Q = q_high;
else if (Q < q_low)
Loop = Q != last_q;
}
- // Is the projected frame size out of range and are we allowed to attempt to recode.
+ /* Is the projected frame size out of range and are we allowed
+ * to attempt to recode.
+ */
else if ( recode_loop_test( cpi,
frame_over_shoot_limit, frame_under_shoot_limit,
Q, top_index, bottom_index ) )
int last_q = Q;
int Retries = 0;
- // Frame size out of permitted range:
- // Update correction factor & compute new Q to try...
+ /* Frame size out of permitted range. Update correction factor
+ * & compute new Q to try...
+ */
- // Frame is too large
+ /* Frame is too large */
if (cpi->projected_frame_size > cpi->this_frame_target)
{
- //if ( cpi->zbin_over_quant == 0 )
- q_low = (Q < q_high) ? (Q + 1) : q_high; // Raise Qlow as to at least the current value
+ /* Raise Qlow as to at least the current value */
+ q_low = (Q < q_high) ? (Q + 1) : q_high;
- if (cpi->zbin_over_quant > 0) // If we are using over quant do the same for zbin_oq_low
+ /* If we are using over quant do the same for zbin_oq_low */
+ if (cpi->zbin_over_quant > 0)
zbin_oq_low = (cpi->zbin_over_quant < zbin_oq_high) ? (cpi->zbin_over_quant + 1) : zbin_oq_high;
- //if ( undershoot_seen || (Q == MAXQ) )
if (undershoot_seen)
{
- // Update rate_correction_factor unless cpi->active_worst_quality has changed.
+ /* Update rate_correction_factor unless
+ * cpi->active_worst_quality has changed.
+ */
if (!active_worst_qchanged)
vp8_update_rate_correction_factors(cpi, 1);
Q = (q_high + q_low + 1) / 2;
- // Adjust cpi->zbin_over_quant (only allowed when Q is max)
+ /* Adjust cpi->zbin_over_quant (only allowed when Q
+ * is max)
+ */
if (Q < MAXQ)
cpi->zbin_over_quant = 0;
else
}
else
{
- // Update rate_correction_factor unless cpi->active_worst_quality has changed.
+ /* Update rate_correction_factor unless
+ * cpi->active_worst_quality has changed.
+ */
if (!active_worst_qchanged)
vp8_update_rate_correction_factors(cpi, 0);
overshoot_seen = 1;
}
- // Frame is too small
+ /* Frame is too small */
else
{
if (cpi->zbin_over_quant == 0)
- q_high = (Q > q_low) ? (Q - 1) : q_low; // Lower q_high if not using over quant
- else // else lower zbin_oq_high
+ /* Lower q_high if not using over quant */
+ q_high = (Q > q_low) ? (Q - 1) : q_low;
+ else
+ /* else lower zbin_oq_high */
zbin_oq_high = (cpi->zbin_over_quant > zbin_oq_low) ? (cpi->zbin_over_quant - 1) : zbin_oq_low;
if (overshoot_seen)
{
- // Update rate_correction_factor unless cpi->active_worst_quality has changed.
+ /* Update rate_correction_factor unless
+ * cpi->active_worst_quality has changed.
+ */
if (!active_worst_qchanged)
vp8_update_rate_correction_factors(cpi, 1);
Q = (q_high + q_low) / 2;
- // Adjust cpi->zbin_over_quant (only allowed when Q is max)
+ /* Adjust cpi->zbin_over_quant (only allowed when Q
+ * is max)
+ */
if (Q < MAXQ)
cpi->zbin_over_quant = 0;
else
}
else
{
- // Update rate_correction_factor unless cpi->active_worst_quality has changed.
+ /* Update rate_correction_factor unless
+ * cpi->active_worst_quality has changed.
+ */
if (!active_worst_qchanged)
vp8_update_rate_correction_factors(cpi, 0);
Q = vp8_regulate_q(cpi, cpi->this_frame_target);
- // Special case reset for qlow for constrained quality.
- // This should only trigger where there is very substantial
- // undershoot on a frame and the auto cq level is above
- // the user passsed in value.
+ /* Special case reset for qlow for constrained quality.
+ * This should only trigger where there is very substantial
+ * undershoot on a frame and the auto cq level is above
+ * the user passsed in value.
+ */
if ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
(Q < q_low) )
{
undershoot_seen = 1;
}
- // Clamp Q to upper and lower limits:
+ /* Clamp Q to upper and lower limits: */
if (Q > q_high)
Q = q_high;
else if (Q < q_low)
Q = q_low;
- // Clamp cpi->zbin_over_quant
+ /* Clamp cpi->zbin_over_quant */
cpi->zbin_over_quant = (cpi->zbin_over_quant < zbin_oq_low) ? zbin_oq_low : (cpi->zbin_over_quant > zbin_oq_high) ? zbin_oq_high : cpi->zbin_over_quant;
Loop = Q != last_q;
while (Loop == 1);
#if 0
- // Experimental code for lagged and one pass
- // Update stats used for one pass GF selection
- {
- /*
- int frames_so_far;
- double frame_intra_error;
- double frame_coded_error;
- double frame_pcnt_inter;
- double frame_pcnt_motion;
- double frame_mvr;
- double frame_mvr_abs;
- double frame_mvc;
- double frame_mvc_abs;
- */
-
+ /* Experimental code for lagged and one pass
+ * Update stats used for one pass GF selection
+ */
+ {
cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_coded_error = (double)cpi->prediction_error;
cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_intra_error = (double)cpi->intra_error;
cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_pcnt_inter = (double)(100 - cpi->this_frame_percent_intra) / 100.0;
}
#endif
- // Special case code to reduce pulsing when key frames are forced at a
- // fixed interval. Note the reconstruction error if it is the frame before
- // the force key frame
+ /* Special case code to reduce pulsing when key frames are forced at a
+ * fixed interval. Note the reconstruction error if it is the frame before
+ * the force key frame
+ */
if ( cpi->next_key_frame_forced && (cpi->twopass.frames_to_key == 0) )
{
cpi->ambient_err = vp8_calc_ss_err(cpi->Source,
vp8_cal_dissimilarity(cpi);
#endif
- // Update the GF useage maps.
- // This is done after completing the compression of a frame when all
- // modes etc. are finalized but before loop filter
+ /* Update the GF useage maps.
+ * This is done after completing the compression of a frame when all
+ * modes etc. are finalized but before loop filter
+ */
if (cpi->oxcf.number_of_layers == 1)
vp8_update_gf_useage_maps(cpi, cm, &cpi->mb);
}
#endif
- // For inter frames the current default behavior is that when
- // cm->refresh_golden_frame is set we copy the old GF over to the ARF buffer
- // This is purely an encoder decision at present.
+ /* For inter frames the current default behavior is that when
+ * cm->refresh_golden_frame is set we copy the old GF over to the ARF buffer
+ * This is purely an encoder decision at present.
+ */
if (!cpi->oxcf.error_resilient_mode && cm->refresh_golden_frame)
cm->copy_buffer_to_arf = 2;
else
#if CONFIG_MULTITHREAD
if (cpi->b_multi_threaded)
{
- sem_post(&cpi->h_event_start_lpf); /* start loopfilter in separate thread */
+ /* start loopfilter in separate thread */
+ sem_post(&cpi->h_event_start_lpf);
cpi->b_lpf_running = 1;
}
else
sem_wait(&cpi->h_event_end_lpf);
#endif
- // build the bitstream
+ /* build the bitstream */
vp8_pack_bitstream(cpi, dest, dest_end, size);
#if CONFIG_MULTITHREAD
* needed in motion search besides loopfilter */
cm->last_frame_type = cm->frame_type;
- // Update rate control heuristics
+ /* Update rate control heuristics */
cpi->total_byte_count += (*size);
cpi->projected_frame_size = (*size) << 3;
vp8_adjust_key_frame_context(cpi);
}
- // Keep a record of ambient average Q.
+ /* Keep a record of ambient average Q. */
if (cm->frame_type != KEY_FRAME)
cpi->avg_frame_qindex = (2 + 3 * cpi->avg_frame_qindex + cm->base_qindex) >> 2;
- // Keep a record from which we can calculate the average Q excluding GF updates and key frames
+ /* Keep a record from which we can calculate the average Q excluding
+ * GF updates and key frames
+ */
if ((cm->frame_type != KEY_FRAME) && ((cpi->oxcf.number_of_layers > 1) ||
(!cm->refresh_golden_frame && !cm->refresh_alt_ref_frame)))
{
cpi->ni_frames++;
- // Calculate the average Q for normal inter frames (not key or GFU
- // frames).
+ /* Calculate the average Q for normal inter frames (not key or GFU
+ * frames).
+ */
if ( cpi->pass == 2 )
{
cpi->ni_tot_qi += Q;
}
else
{
- // Damp value for first few frames
+ /* Damp value for first few frames */
if (cpi->ni_frames > 150 )
{
cpi->ni_tot_qi += Q;
cpi->ni_av_qi = (cpi->ni_tot_qi / cpi->ni_frames);
}
- // For one pass, early in the clip ... average the current frame Q
- // value with the worstq entered by the user as a dampening measure
+ /* For one pass, early in the clip ... average the current frame Q
+ * value with the worstq entered by the user as a dampening measure
+ */
else
{
cpi->ni_tot_qi += Q;
cpi->ni_av_qi = ((cpi->ni_tot_qi / cpi->ni_frames) + cpi->worst_quality + 1) / 2;
}
- // If the average Q is higher than what was used in the last frame
- // (after going through the recode loop to keep the frame size within range)
- // then use the last frame value - 1.
- // The -1 is designed to stop Q and hence the data rate, from progressively
- // falling away during difficult sections, but at the same time reduce the number of
- // itterations around the recode loop.
+ /* If the average Q is higher than what was used in the last
+ * frame (after going through the recode loop to keep the frame
+ * size within range) then use the last frame value - 1. The -1
+ * is designed to stop Q and hence the data rate, from
+ * progressively falling away during difficult sections, but at
+ * the same time reduce the number of itterations around the
+ * recode loop.
+ */
if (Q > cpi->ni_av_qi)
cpi->ni_av_qi = Q - 1;
}
}
- // Update the buffer level variable.
- // Non-viewable frames are a special case and are treated as pure overhead.
+ /* Update the buffer level variable. */
+ /* Non-viewable frames are a special case and are treated as pure overhead. */
if ( !cm->show_frame )
cpi->bits_off_target -= cpi->projected_frame_size;
else
cpi->bits_off_target += cpi->av_per_frame_bandwidth - cpi->projected_frame_size;
- // Clip the buffer level to the maximum specified buffer size
+ /* Clip the buffer level to the maximum specified buffer size */
if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size)
cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
- // Rolling monitors of whether we are over or underspending used to help regulate min and Max Q in two pass.
+ /* Rolling monitors of whether we are over or underspending used to
+ * help regulate min and Max Q in two pass.
+ */
cpi->rolling_target_bits = ((cpi->rolling_target_bits * 3) + cpi->this_frame_target + 2) / 4;
cpi->rolling_actual_bits = ((cpi->rolling_actual_bits * 3) + cpi->projected_frame_size + 2) / 4;
cpi->long_rolling_target_bits = ((cpi->long_rolling_target_bits * 31) + cpi->this_frame_target + 16) / 32;
cpi->long_rolling_actual_bits = ((cpi->long_rolling_actual_bits * 31) + cpi->projected_frame_size + 16) / 32;
- // Actual bits spent
+ /* Actual bits spent */
cpi->total_actual_bits += cpi->projected_frame_size;
- // Debug stats
+ /* Debug stats */
cpi->total_target_vs_actual += (cpi->this_frame_target - cpi->projected_frame_size);
cpi->buffer_level = cpi->bits_off_target;
- // Propagate values to higher temporal layers
+ /* Propagate values to higher temporal layers */
if (cpi->oxcf.number_of_layers > 1)
{
unsigned int i;
lc->bits_off_target += bits_off_for_this_layer;
- // Clip buffer level to maximum buffer size for the layer
+ /* Clip buffer level to maximum buffer size for the layer */
if (lc->bits_off_target > lc->maximum_buffer_size)
lc->bits_off_target = lc->maximum_buffer_size;
}
}
- // Update bits left to the kf and gf groups to account for overshoot or undershoot on these frames
+ /* Update bits left to the kf and gf groups to account for overshoot
+ * or undershoot on these frames
+ */
if (cm->frame_type == KEY_FRAME)
{
cpi->twopass.kf_group_bits += cpi->this_frame_target - cpi->projected_frame_size;
cpi->last_skip_false_probs[0] = cpi->prob_skip_false;
cpi->last_skip_probs_q[0] = cm->base_qindex;
- //update the baseline
+ /* update the baseline */
cpi->base_skip_false_prob[cm->base_qindex] = cpi->prob_skip_false;
}
{
FILE *f = fopen("tmp.stt", "a");
- vp8_clear_system_state(); //__asm emms;
+ vp8_clear_system_state();
if (cpi->twopass.total_left_stats.coded_error != 0.0)
fprintf(f, "%10d %10d %10d %10d %10d %10d %10d %10d %10d %6d %6d"
cpi->active_best_quality, cpi->active_worst_quality,
cpi->ni_av_qi, cpi->cq_target_quality,
cpi->zbin_over_quant,
- //cpi->avg_frame_qindex, cpi->zbin_over_quant,
cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
cm->frame_type, cpi->gfu_boost,
cpi->twopass.est_max_qcorrection_factor,
cpi->active_best_quality, cpi->active_worst_quality,
cpi->ni_av_qi, cpi->cq_target_quality,
cpi->zbin_over_quant,
- //cpi->avg_frame_qindex, cpi->zbin_over_quant,
cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
cm->frame_type, cpi->gfu_boost,
cpi->twopass.est_max_qcorrection_factor,
#endif
- // If this was a kf or Gf note the Q
+ /* If this was a kf or Gf note the Q */
if ((cm->frame_type == KEY_FRAME) || cm->refresh_golden_frame || cm->refresh_alt_ref_frame)
cm->last_kf_gf_q = cm->base_qindex;
cm->frame_flags = cm->frame_flags&~FRAMEFLAGS_ALTREF;
- if (cm->refresh_last_frame & cm->refresh_golden_frame) // both refreshed
+ if (cm->refresh_last_frame & cm->refresh_golden_frame)
+ /* both refreshed */
cpi->gold_is_last = 1;
- else if (cm->refresh_last_frame ^ cm->refresh_golden_frame) // 1 refreshed but not the other
+ else if (cm->refresh_last_frame ^ cm->refresh_golden_frame)
+ /* 1 refreshed but not the other */
cpi->gold_is_last = 0;
- if (cm->refresh_last_frame & cm->refresh_alt_ref_frame) // both refreshed
+ if (cm->refresh_last_frame & cm->refresh_alt_ref_frame)
+ /* both refreshed */
cpi->alt_is_last = 1;
- else if (cm->refresh_last_frame ^ cm->refresh_alt_ref_frame) // 1 refreshed but not the other
+ else if (cm->refresh_last_frame ^ cm->refresh_alt_ref_frame)
+ /* 1 refreshed but not the other */
cpi->alt_is_last = 0;
- if (cm->refresh_alt_ref_frame & cm->refresh_golden_frame) // both refreshed
+ if (cm->refresh_alt_ref_frame & cm->refresh_golden_frame)
+ /* both refreshed */
cpi->gold_is_alt = 1;
- else if (cm->refresh_alt_ref_frame ^ cm->refresh_golden_frame) // 1 refreshed but not the other
+ else if (cm->refresh_alt_ref_frame ^ cm->refresh_golden_frame)
+ /* 1 refreshed but not the other */
cpi->gold_is_alt = 0;
cpi->ref_frame_flags = VP8_ALTR_FRAME | VP8_GOLD_FRAME | VP8_LAST_FRAME;
if (!cpi->oxcf.error_resilient_mode)
{
if (cpi->oxcf.play_alternate && cm->refresh_alt_ref_frame && (cm->frame_type != KEY_FRAME))
- // Update the alternate reference frame stats as appropriate.
+ /* Update the alternate reference frame stats as appropriate. */
update_alt_ref_frame_stats(cpi);
else
- // Update the Golden frame stats as appropriate.
+ /* Update the Golden frame stats as appropriate. */
update_golden_frame_stats(cpi);
}
if (cm->frame_type == KEY_FRAME)
{
- // Tell the caller that the frame was coded as a key frame
+ /* Tell the caller that the frame was coded as a key frame */
*frame_flags = cm->frame_flags | FRAMEFLAGS_KEY;
- // As this frame is a key frame the next defaults to an inter frame.
+ /* As this frame is a key frame the next defaults to an inter frame. */
cm->frame_type = INTER_FRAME;
cpi->last_frame_percent_intra = 100;
cpi->last_frame_percent_intra = cpi->this_frame_percent_intra;
}
- // Clear the one shot update flags for segmentation map and mode/ref loop filter deltas.
+ /* Clear the one shot update flags for segmentation map and mode/ref
+ * loop filter deltas.
+ */
cpi->mb.e_mbd.update_mb_segmentation_map = 0;
cpi->mb.e_mbd.update_mb_segmentation_data = 0;
cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
- // Dont increment frame counters if this was an altref buffer update not a real frame
+ /* Dont increment frame counters if this was an altref buffer update
+ * not a real frame
+ */
if (cm->show_frame)
{
cm->current_video_frame++;
cpi->frames_since_key++;
}
- // reset to normal state now that we are done.
+ /* reset to normal state now that we are done. */
}
#endif
- // DEBUG
- //vp8_write_yuv_frame("encoder_recon.yuv", cm->frame_to_show);
+ /* DEBUG */
+ /* vp8_write_yuv_frame("encoder_recon.yuv", cm->frame_to_show); */
}
int gf_ref_usage_pct = (cpi->count_mb_ref_frame_usage[GOLDEN_FRAME] * 100) / (cm->mb_rows * cm->mb_cols);
int last_ref_zz_useage = (cpi->inter_zz_count * 100) / (cm->mb_rows * cm->mb_cols);
- // Gf refresh is not currently being signalled
+ /* Gf refresh is not currently being signalled */
if (cpi->gf_update_recommended == 0)
{
if (cpi->common.frames_since_golden > 7)
{
- // Low use of gf
+ /* Low use of gf */
if ((gf_active_pct < 10) || ((gf_active_pct + gf_ref_usage_pct) < 15))
{
- // ...but last frame zero zero usage is reasonbable so a new gf might be appropriate
+ /* ...but last frame zero zero usage is reasonbable so a
+ * new gf might be appropriate
+ */
if (last_ref_zz_useage >= 25)
{
cpi->gf_bad_count ++;
- if (cpi->gf_bad_count >= 8) // Check that the condition is stable
+ /* Check that the condition is stable */
+ if (cpi->gf_bad_count >= 8)
{
cpi->gf_update_recommended = 1;
cpi->gf_bad_count = 0;
}
}
else
- cpi->gf_bad_count = 0; // Restart count as the background is not stable enough
+ /* Restart count as the background is not stable enough */
+ cpi->gf_bad_count = 0;
}
else
- cpi->gf_bad_count = 0; // Gf useage has picked up so reset count
+ /* Gf useage has picked up so reset count */
+ cpi->gf_bad_count = 0;
}
}
- // If the signal is set but has not been read should we cancel it.
+ /* If the signal is set but has not been read should we cancel it. */
else if (last_ref_zz_useage < 15)
{
cpi->gf_update_recommended = 0;
}
#endif
-//For ARM NEON, d8-d15 are callee-saved registers, and need to be saved by us.
+/* For ARM NEON, d8-d15 are callee-saved registers, and need to be saved. */
#if HAVE_NEON
extern void vp8_push_neon(int64_t *store);
extern void vp8_pop_neon(int64_t *store);
cpi->source = NULL;
#if !(CONFIG_REALTIME_ONLY)
- // Should we code an alternate reference frame
+ /* Should we code an alternate reference frame */
if (cpi->oxcf.error_resilient_mode == 0 &&
cpi->oxcf.play_alternate &&
cpi->source_alt_ref_pending)
cm->refresh_golden_frame = 0;
cm->refresh_last_frame = 0;
cm->show_frame = 0;
- cpi->source_alt_ref_pending = 0; // Clear Pending alt Ref flag.
+ /* Clear Pending alt Ref flag. */
+ cpi->source_alt_ref_pending = 0;
cpi->is_src_frame_alt_ref = 0;
}
}
cpi->last_end_time_stamp_seen = cpi->source->ts_start;
}
- // adjust frame rates based on timestamps given
+ /* adjust frame rates based on timestamps given */
if (cm->show_frame)
{
int64_t this_duration;
this_duration = cpi->source->ts_end - cpi->last_end_time_stamp_seen;
last_duration = cpi->last_end_time_stamp_seen
- cpi->last_time_stamp_seen;
- // do a step update if the duration changes by 10%
+ /* do a step update if the duration changes by 10% */
if (last_duration)
step = ((this_duration - last_duration) * 10 / last_duration);
}
{
unsigned int i;
- // Update frame rates for each layer
+ /* Update frame rates for each layer */
for (i=0; i<cpi->oxcf.number_of_layers; i++)
{
LAYER_CONTEXT *lc = &cpi->layer_context[i];
update_layer_contexts (cpi);
- // Restore layer specific context & set frame rate
+ /* Restore layer specific context & set frame rate */
layer = cpi->oxcf.layer_id[
cm->current_video_frame % cpi->oxcf.periodicity];
restore_layer_context (cpi, layer);
}
#endif
- // start with a 0 size frame
+ /* start with a 0 size frame */
*size = 0;
- // Clear down mmx registers
- vp8_clear_system_state(); //__asm emms;
+ /* Clear down mmx registers */
+ vp8_clear_system_state();
cm->frame_type = INTER_FRAME;
cm->frame_flags = *frame_flags;
if (cm->refresh_alt_ref_frame)
{
- //cm->refresh_golden_frame = 1;
cm->refresh_golden_frame = 0;
cm->refresh_last_frame = 0;
}
if (duration2)
{
- //if(*frame_flags!=1)
{
if (cpi->avg_pick_mode_time == 0)
vpx_memcpy(&cm->fc, &cm->lfc, sizeof(cm->fc));
}
- // Save the contexts separately for alt ref, gold and last.
- // (TODO jbb -> Optimize this with pointers to avoid extra copies. )
+ /* Save the contexts separately for alt ref, gold and last. */
+ /* (TODO jbb -> Optimize this with pointers to avoid extra copies. ) */
if(cm->refresh_alt_ref_frame)
vpx_memcpy(&cpi->lfc_a, &cm->fc, sizeof(cm->fc));
if(cm->refresh_last_frame)
vpx_memcpy(&cpi->lfc_n, &cm->fc, sizeof(cm->fc));
- // if its a dropped frame honor the requests on subsequent frames
+ /* if its a dropped frame honor the requests on subsequent frames */
if (*size > 0)
{
cpi->droppable = !frame_is_reference(cpi);
- // return to normal state
+ /* return to normal state */
cm->refresh_entropy_probs = 1;
cm->refresh_alt_ref_frame = 0;
cm->refresh_golden_frame = 0;
}
- // Save layer specific state
+ /* Save layer specific state */
if (cpi->oxcf.number_of_layers > 1)
save_layer_context (cpi);
ret = -1;
}
-#endif //!CONFIG_POSTPROC
+#endif
vp8_clear_system_state();
return ret;
}
int vp8_set_roimap(VP8_COMP *cpi, unsigned char *map, unsigned int rows, unsigned int cols, int delta_q[4], int delta_lf[4], unsigned int threshold[4])
{
signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
+ int internal_delta_q[MAX_MB_SEGMENTS];
+ const unsigned int range = 63;
+ int i;
+
+ // This method is currently incompatible with the cyclic refresh method
+ if ( cpi->cyclic_refresh_mode_enabled )
+ return -1;
+ // Check number of rows and columns match
if (cpi->common.mb_rows != rows || cpi->common.mb_cols != cols)
return -1;
+ // Range check the delta Q values and convert the external Q range values
+ // to internal ones.
+ if ( (abs(delta_q[0]) > range) || (abs(delta_q[1]) > range) ||
+ (abs(delta_q[2]) > range) || (abs(delta_q[3]) > range) )
+ return -1;
+
+ // Range check the delta lf values
+ if ( (abs(delta_lf[0]) > range) || (abs(delta_lf[1]) > range) ||
+ (abs(delta_lf[2]) > range) || (abs(delta_lf[3]) > range) )
+ return -1;
+
if (!map)
{
disable_segmentation(cpi);
return 0;
}
- // Set the segmentation Map
+ // Translate the external delta q values to internal values.
+ for ( i = 0; i < MAX_MB_SEGMENTS; i++ )
+ internal_delta_q[i] =
+ ( delta_q[i] >= 0 ) ? q_trans[delta_q[i]] : -q_trans[-delta_q[i]];
+
+ /* Set the segmentation Map */
set_segmentation_map(cpi, map);
- // Activate segmentation.
+ /* Activate segmentation. */
enable_segmentation(cpi);
- // Set up the quant segment data
- feature_data[MB_LVL_ALT_Q][0] = delta_q[0];
- feature_data[MB_LVL_ALT_Q][1] = delta_q[1];
- feature_data[MB_LVL_ALT_Q][2] = delta_q[2];
- feature_data[MB_LVL_ALT_Q][3] = delta_q[3];
+ /* Set up the quant segment data */
+ feature_data[MB_LVL_ALT_Q][0] = internal_delta_q[0];
+ feature_data[MB_LVL_ALT_Q][1] = internal_delta_q[1];
+ feature_data[MB_LVL_ALT_Q][2] = internal_delta_q[2];
+ feature_data[MB_LVL_ALT_Q][3] = internal_delta_q[3];
- // Set up the loop segment data s
+ /* Set up the loop segment data s */
feature_data[MB_LVL_ALT_LF][0] = delta_lf[0];
feature_data[MB_LVL_ALT_LF][1] = delta_lf[1];
feature_data[MB_LVL_ALT_LF][2] = delta_lf[2];
cpi->segment_encode_breakout[2] = threshold[2];
cpi->segment_encode_breakout[3] = threshold[3];
- // Initialise the feature data structure
- // SEGMENT_DELTADATA 0, SEGMENT_ABSDATA 1
+ /* Initialise the feature data structure */
set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
return 0;
}
else
{
- //cpi->active_map_enabled = 0;
return -1 ;
}
}
unsigned char *src = source->y_buffer;
unsigned char *dst = dest->y_buffer;
- // Loop through the Y plane raw and reconstruction data summing (square differences)
+ /* Loop through the Y plane raw and reconstruction data summing
+ * (square differences)
+ */
for (i = 0; i < source->y_height; i += 16)
{
for (j = 0; j < source->y_width; j += 16)
projects / libvpx / blobdiff