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| author | Paul B Mahol <onemda@gmail.com> | 2016-08-11 18:10:46 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2016-08-13 12:57:09 +0200 |
| commit | 3a81775bdee7c02dac0d933f3c2b565ac5d9c97c (patch) | |
| tree | 08bb9f5bc2518739289e5cfda151dbf664f17f7d /libavfilter/vf_signalstats.c | |
| parent | ee56d9bc89c2cd9f79ef62a8301b9c42c50b0757 (diff) | |
| download | ffmpeg-3a81775bdee7c02dac0d933f3c2b565ac5d9c97c.tar.gz | |
avfilter/vf_signalstats: measure video bitdepth
Diffstat (limited to 'libavfilter/vf_signalstats.c')
| -rw-r--r-- | libavfilter/vf_signalstats.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/libavfilter/vf_signalstats.c b/libavfilter/vf_signalstats.c index 259b0a180c..00051f2cab 100644 --- a/libavfilter/vf_signalstats.c +++ b/libavfilter/vf_signalstats.c @@ -541,6 +541,11 @@ static int compute_sat_hue_metrics16(AVFilterContext *ctx, void *arg, int jobnr, return 0; } +static unsigned compute_bit_depth(uint16_t mask) +{ + return av_popcount(mask); +} + static int filter_frame8(AVFilterLink *link, AVFrame *in) { AVFilterContext *ctx = link->dst; @@ -569,6 +574,7 @@ static int filter_frame8(AVFilterLink *link, AVFrame *in) int toty = 0, totu = 0, totv = 0, totsat=0; int tothue = 0; int dify = 0, difu = 0, difv = 0; + uint16_t masky = 0, masku = 0, maskv = 0; int filtot[FILT_NUMB] = {0}; AVFrame *prev; @@ -602,6 +608,8 @@ static int filter_frame8(AVFilterLink *link, AVFrame *in) for (j = 0; j < link->h; j++) { for (i = 0; i < link->w; i++) { const int yuv = in->data[0][w + i]; + + masky |= yuv; histy[yuv]++; dify += abs(yuv - prev->data[0][pw + i]); } @@ -614,6 +622,9 @@ static int filter_frame8(AVFilterLink *link, AVFrame *in) for (i = 0; i < s->chromaw; i++) { const int yuvu = in->data[1][cw+i]; const int yuvv = in->data[2][cw+i]; + + masku |= yuvu; + maskv |= yuvv; histu[yuvu]++; difu += abs(yuvu - prev->data[1][cpw+i]); histv[yuvv]++; @@ -735,6 +746,10 @@ static int filter_frame8(AVFilterLink *link, AVFrame *in) SET_META("UDIF", "%g", 1.0 * difu / s->cfs); SET_META("VDIF", "%g", 1.0 * difv / s->cfs); + SET_META("YBITDEPTH", "%d", compute_bit_depth(masky)); + SET_META("UBITDEPTH", "%d", compute_bit_depth(masku)); + SET_META("VBITDEPTH", "%d", compute_bit_depth(maskv)); + for (fil = 0; fil < FILT_NUMB; fil ++) { if (s->filters & 1<<fil) { char metaname[128]; @@ -777,6 +792,7 @@ static int filter_frame16(AVFilterLink *link, AVFrame *in) int64_t toty = 0, totu = 0, totv = 0, totsat=0; int64_t tothue = 0; int64_t dify = 0, difu = 0, difv = 0; + uint16_t masky = 0, masku = 0, maskv = 0; int filtot[FILT_NUMB] = {0}; AVFrame *prev; @@ -811,6 +827,8 @@ static int filter_frame16(AVFilterLink *link, AVFrame *in) for (j = 0; j < link->h; j++) { for (i = 0; i < link->w; i++) { const int yuv = AV_RN16(in->data[0] + w + i * 2); + + masky |= yuv; histy[yuv]++; dify += abs(yuv - AV_RN16(prev->data[0] + pw + i * 2)); } @@ -826,6 +844,9 @@ static int filter_frame16(AVFilterLink *link, AVFrame *in) for (i = 0; i < s->chromaw; i++) { const int yuvu = AV_RN16(in->data[1] + cw + i * 2); const int yuvv = AV_RN16(in->data[2] + cw + i * 2); + + masku |= yuvu; + maskv |= yuvv; histu[yuvu]++; difu += abs(yuvu - AV_RN16(prev->data[1] + cpw + i * 2)); histv[yuvv]++; @@ -942,6 +963,10 @@ static int filter_frame16(AVFilterLink *link, AVFrame *in) SET_META("UDIF", "%g", 1.0 * difu / s->cfs); SET_META("VDIF", "%g", 1.0 * difv / s->cfs); + SET_META("YBITDEPTH", "%d", compute_bit_depth(masky)); + SET_META("UBITDEPTH", "%d", compute_bit_depth(masku)); + SET_META("VBITDEPTH", "%d", compute_bit_depth(maskv)); + for (fil = 0; fil < FILT_NUMB; fil ++) { if (s->filters & 1<<fil) { char metaname[128]; |