Commit c96f8e23 authored by John Koleszar's avatar John Koleszar

vpxenc: add rate histogram display

Add the --rate-hist=n option, which displays a histogram with n
buckets for the rate over the --buf-sz window.

Change-Id: I2807b5a1525c7972e9ba40839b37e92b23ceffaf
parent 3fde9964
......@@ -912,12 +912,14 @@ static const arg_def_t use_ivf = ARG_DEF(NULL, "ivf", 0,
"Output IVF (default is WebM)");
static const arg_def_t q_hist_n = ARG_DEF(NULL, "q-hist", 1,
"Show quantizer histogram (n-buckets)");
static const arg_def_t rate_hist_n = ARG_DEF(NULL, "rate-hist", 1,
"Show rate histogram (n-buckets)");
static const arg_def_t *main_args[] =
{
&debugmode,
&outputfile, &codecarg, &passes, &pass_arg, &fpf_name, &limit, &deadline,
&best_dl, &good_dl, &rt_dl,
&verbosearg, &psnrarg, &use_ivf, &q_hist_n,
&verbosearg, &psnrarg, &use_ivf, &q_hist_n, &rate_hist_n,
NULL
};
......@@ -1201,8 +1203,42 @@ static void show_histogram(const struct hist_bucket *bucket,
int total,
int scale)
{
const char *pat1, *pat2;
int i;
switch((int)(log(bucket[buckets-1].high)/log(10))+1)
{
case 1:
case 2:
pat1 = "%4d %2s: ";
pat2 = "%4d-%2d: ";
break;
case 3:
pat1 = "%5d %3s: ";
pat2 = "%5d-%3d: ";
break;
case 4:
pat1 = "%6d %4s: ";
pat2 = "%6d-%4d: ";
break;
case 5:
pat1 = "%7d %5s: ";
pat2 = "%7d-%5d: ";
break;
case 6:
pat1 = "%8d %6s: ";
pat2 = "%8d-%6d: ";
break;
case 7:
pat1 = "%9d %7s: ";
pat2 = "%9d-%7d: ";
break;
default:
pat1 = "%12d %10s: ";
pat2 = "%12d-%10d: ";
break;
}
for(i=0; i<buckets; i++)
{
int len;
......@@ -1216,9 +1252,9 @@ static void show_histogram(const struct hist_bucket *bucket,
assert(len <= HIST_BAR_MAX);
if(bucket[i].low == bucket[i].high)
fprintf(stderr, "%4d : ", bucket[i].low);
fprintf(stderr, pat1, bucket[i].low, "");
else
fprintf(stderr, "%4d-%2d: ", bucket[i].low, bucket[i].high);
fprintf(stderr, pat2, bucket[i].low, bucket[i].high);
for(j=0; j<HIST_BAR_MAX; j++)
fprintf(stderr, j<len?"=":" ");
......@@ -1247,12 +1283,110 @@ static void show_q_histogram(const int counts[64], int max_buckets)
}
}
fprintf(stderr, "Quantizer Selection:\n");
fprintf(stderr, "\nQuantizer Selection:\n");
scale = merge_hist_buckets(bucket, &buckets, max_buckets);
show_histogram(bucket, buckets, total, scale);
}
#define RATE_BINS (100)
struct rate_hist
{
int64_t *pts;
int *sz;
int samples;
int frames;
struct hist_bucket bucket[RATE_BINS];
int total;
};
static void init_rate_histogram(struct rate_hist *hist,
const vpx_codec_enc_cfg_t *cfg)
{
int i;
hist->samples = cfg->rc_buf_sz * 60 / 1000; // max 60 fps
hist->pts = calloc(hist->samples, sizeof(*hist->pts));
hist->sz = calloc(hist->samples, sizeof(*hist->sz));
for(i=0; i<RATE_BINS; i++)
{
hist->bucket[i].low = INT_MAX;
hist->bucket[i].high = 0;
hist->bucket[i].count = 0;
}
}
static void destroy_rate_histogram(struct rate_hist *hist)
{
free(hist->pts);
free(hist->sz);
}
static void update_rate_histogram(struct rate_hist *hist,
const vpx_codec_enc_cfg_t *cfg,
const vpx_codec_cx_pkt_t *pkt)
{
int i, idx;
int64_t now, then, sum_sz = 0, avg_bitrate;
now = pkt->data.frame.pts * 1000
* (uint64_t)cfg->g_timebase.num / (uint64_t)cfg->g_timebase.den;
idx = hist->frames++ % hist->samples;
hist->pts[idx] = now;
hist->sz[idx] = pkt->data.frame.sz;
if(now < cfg->rc_buf_initial_sz)
return;
/* Sum the size over the past rc_buf_sz ms */
for(i = hist->frames; i > 0; i--)
{
int i_idx = (i-1) % hist->samples;
then = hist->pts[i_idx];
if(now - then > cfg->rc_buf_sz)
break;
sum_sz += hist->sz[i_idx];
}
avg_bitrate = sum_sz * 8 * 1000 / (now - then);
idx = avg_bitrate * (RATE_BINS/2) / (cfg->rc_target_bitrate * 1000);
if(idx < 0)
idx = 0;
if(idx > RATE_BINS-1)
idx = RATE_BINS-1;
if(hist->bucket[idx].low > avg_bitrate)
hist->bucket[idx].low = avg_bitrate;
if(hist->bucket[idx].high < avg_bitrate)
hist->bucket[idx].high = avg_bitrate;
hist->bucket[idx].count++;
hist->total++;
}
static void show_rate_histogram(struct rate_hist *hist,
const vpx_codec_enc_cfg_t *cfg,
int max_buckets)
{
int i, scale;
int buckets = 0;
for(i = 0; i < RATE_BINS; i++)
{
if(hist->bucket[i].low == INT_MAX)
continue;
hist->bucket[buckets++] = hist->bucket[i];
}
fprintf(stderr, "\nRate (over %dms window):\n", cfg->rc_buf_sz);
scale = merge_hist_buckets(hist->bucket, &buckets, max_buckets);
show_histogram(hist->bucket, buckets, hist->total, scale);
}
#define ARG_CTRL_CNT_MAX 10
int main(int argc, const char **argv_)
......@@ -1293,6 +1427,8 @@ int main(int argc, const char **argv_)
stereo_format_t stereo_fmt = STEREO_FORMAT_MONO;
int counts[64]={0};
int show_q_hist_buckets=0;
int show_rate_hist_buckets=0;
struct rate_hist rate_hist={0};
exec_name = argv_[0];
ebml.last_pts_ms = -1;
......@@ -1378,6 +1514,8 @@ int main(int argc, const char **argv_)
ebml.debug = 1;
else if (arg_match(&arg, &q_hist_n, argi))
show_q_hist_buckets = arg_parse_uint(&arg);
else if (arg_match(&arg, &rate_hist_n, argi))
show_rate_hist_buckets = arg_parse_uint(&arg);
else
argj++;
}
......@@ -1561,6 +1699,8 @@ int main(int argc, const char **argv_)
memset(&stats, 0, sizeof(stats));
init_rate_histogram(&rate_hist, &cfg);
for (pass = one_pass_only ? one_pass_only - 1 : 0; pass < arg_passes; pass++)
{
int frames_in = 0, frames_out = 0;
......@@ -1821,6 +1961,7 @@ int main(int argc, const char **argv_)
fprintf(stderr, " %6luF",
(unsigned long)pkt->data.frame.sz);
update_rate_histogram(&rate_hist, &cfg, pkt);
if(write_webm)
{
/* Update the hash */
......@@ -1921,6 +2062,10 @@ int main(int argc, const char **argv_)
if (show_q_hist_buckets)
show_q_histogram(counts, show_q_hist_buckets);
if (show_rate_hist_buckets)
show_rate_histogram(&rate_hist, &cfg, show_rate_hist_buckets);
destroy_rate_histogram(&rate_hist);
vpx_img_free(&raw);
free(argv);
return EXIT_SUCCESS;
......
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