[FFmpeg-devel,v1] avfilter/f_select: yuv will use Y plane only for scenecut detect

Submitted by lance.lmwang@gmail.com on Aug. 10, 2019, 4:02 p.m.

Details

Message ID 20190810160203.12754-1-lance.lmwang@gmail.com
State New
Headers show

Commit Message

lance.lmwang@gmail.com Aug. 10, 2019, 4:02 p.m.
From: Limin Wang <lance.lmwang@gmail.com>

It'll improve about +0.1 threshold for scenecut detect

Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
---
 libavfilter/f_select.c                     |  5 ++++-
 tests/ref/fate/filter-metadata-scenedetect | 16 ++++++++--------
 2 files changed, 12 insertions(+), 9 deletions(-)

Comments

Marton Balint Aug. 10, 2019, 9:04 p.m.
On Sun, 11 Aug 2019, lance.lmwang@gmail.com wrote:

> From: Limin Wang <lance.lmwang@gmail.com>
>
> It'll improve about +0.1 threshold for scenecut detect
>
> Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
> ---
> libavfilter/f_select.c                     |  5 ++++-
> tests/ref/fate/filter-metadata-scenedetect | 16 ++++++++--------
> 2 files changed, 12 insertions(+), 9 deletions(-)
>
> diff --git a/libavfilter/f_select.c b/libavfilter/f_select.c
> index 5c7372c..bd40b3b 100644
> --- a/libavfilter/f_select.c
> +++ b/libavfilter/f_select.c
> @@ -148,6 +148,7 @@ typedef struct SelectContext {
>     double var_values[VAR_VARS_NB];
>     int bitdepth;
>     int nb_planes;
> +    int is_yuv;

Does not need to be in the context.

>     ptrdiff_t width[4];
>     ptrdiff_t height[4];
>     int do_scene_detect;            ///< 1 if the expression requires scene detection variables, 0 otherwise
> @@ -211,7 +212,9 @@ static int config_input(AVFilterLink *inlink)
>     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
>
>     select->bitdepth = desc->comp[0].depth;
> -    select->nb_planes = av_pix_fmt_count_planes(inlink->format);
> +    select->is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB);

&& desc->nb_components >= 3

> +    select->nb_planes = select->is_yuv ? 1 : av_pix_fmt_count_planes(inlink->format);
> +
>     for (int plane = 0; plane < select->nb_planes; plane++) {
>         ptrdiff_t line_size = av_image_get_linesize(inlink->format, inlink->w, plane);
>         int vsub = desc->log2_chroma_h;
> diff --git a/tests/ref/fate/filter-metadata-scenedetect b/tests/ref/fate/filter-metadata-scenedetect
> index 7ce2d67..36c033b 100644
> --- a/tests/ref/fate/filter-metadata-scenedetect
> +++ b/tests/ref/fate/filter-metadata-scenedetect
> @@ -1,11 +1,11 @@
> pkt_pts=1620|tag:lavfi.scene_score=1.000000
> -pkt_pts=4140|tag:lavfi.scene_score=0.668643
> -pkt_pts=5800|tag:lavfi.scene_score=0.996721
> -pkt_pts=6720|tag:lavfi.scene_score=0.357390
> -pkt_pts=8160|tag:lavfi.scene_score=0.886268
> -pkt_pts=9760|tag:lavfi.scene_score=0.926219
> -pkt_pts=14080|tag:lavfi.scene_score=0.650033
> +pkt_pts=4140|tag:lavfi.scene_score=0.923403
> +pkt_pts=5800|tag:lavfi.scene_score=1.000000
> +pkt_pts=6720|tag:lavfi.scene_score=0.475643
> +pkt_pts=8160|tag:lavfi.scene_score=1.000000
> +pkt_pts=9760|tag:lavfi.scene_score=1.000000
> +pkt_pts=14080|tag:lavfi.scene_score=0.874623
> pkt_pts=15700|tag:lavfi.scene_score=1.000000
> -pkt_pts=18500|tag:lavfi.scene_score=0.316402
> -pkt_pts=20040|tag:lavfi.scene_score=0.269509
> +pkt_pts=18500|tag:lavfi.scene_score=0.422509
> +pkt_pts=20040|tag:lavfi.scene_score=0.352360
> pkt_pts=21760|tag:lavfi.scene_score=1.000000
> -- 
> 2.6.4
>

Regards,
Marton
lance.lmwang@gmail.com Aug. 11, 2019, 11:27 p.m.
On Sat, Aug 10, 2019 at 11:04:37PM +0200, Marton Balint wrote:
> 
> 
> On Sun, 11 Aug 2019, lance.lmwang@gmail.com wrote:
> 
> >From: Limin Wang <lance.lmwang@gmail.com>
> >
> >It'll improve about +0.1 threshold for scenecut detect
> >
> >Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
> >---
> >libavfilter/f_select.c                     |  5 ++++-
> >tests/ref/fate/filter-metadata-scenedetect | 16 ++++++++--------
> >2 files changed, 12 insertions(+), 9 deletions(-)
> >
> >diff --git a/libavfilter/f_select.c b/libavfilter/f_select.c
> >index 5c7372c..bd40b3b 100644
> >--- a/libavfilter/f_select.c
> >+++ b/libavfilter/f_select.c
> >@@ -148,6 +148,7 @@ typedef struct SelectContext {
> >    double var_values[VAR_VARS_NB];
> >    int bitdepth;
> >    int nb_planes;
> >+    int is_yuv;
> 
> Does not need to be in the context.
> 
OK, for this patch, it's good to be local.


> >    ptrdiff_t width[4];
> >    ptrdiff_t height[4];
> >    int do_scene_detect;            ///< 1 if the expression requires scene detection variables, 0 otherwise
> >@@ -211,7 +212,9 @@ static int config_input(AVFilterLink *inlink)
> >    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
> >
> >    select->bitdepth = desc->comp[0].depth;
> >-    select->nb_planes = av_pix_fmt_count_planes(inlink->format);
> >+    select->is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB);
> 
> && desc->nb_components >= 3

How about to limit to plannar yuv and use AV_PIX_FMT_FLAG_PLANAR? By the pixdesc.c, it'll
OK for the existing supported format.


> 
> >+    select->nb_planes = select->is_yuv ? 1 : av_pix_fmt_count_planes(inlink->format);
> >+
> >    for (int plane = 0; plane < select->nb_planes; plane++) {
> >        ptrdiff_t line_size = av_image_get_linesize(inlink->format, inlink->w, plane);
> >        int vsub = desc->log2_chroma_h;
> >diff --git a/tests/ref/fate/filter-metadata-scenedetect b/tests/ref/fate/filter-metadata-scenedetect
> >index 7ce2d67..36c033b 100644
> >--- a/tests/ref/fate/filter-metadata-scenedetect
> >+++ b/tests/ref/fate/filter-metadata-scenedetect
> >@@ -1,11 +1,11 @@
> >pkt_pts=1620|tag:lavfi.scene_score=1.000000
> >-pkt_pts=4140|tag:lavfi.scene_score=0.668643
> >-pkt_pts=5800|tag:lavfi.scene_score=0.996721
> >-pkt_pts=6720|tag:lavfi.scene_score=0.357390
> >-pkt_pts=8160|tag:lavfi.scene_score=0.886268
> >-pkt_pts=9760|tag:lavfi.scene_score=0.926219
> >-pkt_pts=14080|tag:lavfi.scene_score=0.650033
> >+pkt_pts=4140|tag:lavfi.scene_score=0.923403
> >+pkt_pts=5800|tag:lavfi.scene_score=1.000000
> >+pkt_pts=6720|tag:lavfi.scene_score=0.475643
> >+pkt_pts=8160|tag:lavfi.scene_score=1.000000
> >+pkt_pts=9760|tag:lavfi.scene_score=1.000000
> >+pkt_pts=14080|tag:lavfi.scene_score=0.874623
> >pkt_pts=15700|tag:lavfi.scene_score=1.000000
> >-pkt_pts=18500|tag:lavfi.scene_score=0.316402
> >-pkt_pts=20040|tag:lavfi.scene_score=0.269509
> >+pkt_pts=18500|tag:lavfi.scene_score=0.422509
> >+pkt_pts=20040|tag:lavfi.scene_score=0.352360
> >pkt_pts=21760|tag:lavfi.scene_score=1.000000
> >-- 
> >2.6.4
> >
> 
> Regards,
> Marton
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diff --git a/libavfilter/f_select.c b/libavfilter/f_select.c
index 5c7372c..bd40b3b 100644
--- a/libavfilter/f_select.c
+++ b/libavfilter/f_select.c
@@ -148,6 +148,7 @@  typedef struct SelectContext {
     double var_values[VAR_VARS_NB];
     int bitdepth;
     int nb_planes;
+    int is_yuv;
     ptrdiff_t width[4];
     ptrdiff_t height[4];
     int do_scene_detect;            ///< 1 if the expression requires scene detection variables, 0 otherwise
@@ -211,7 +212,9 @@  static int config_input(AVFilterLink *inlink)
     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
 
     select->bitdepth = desc->comp[0].depth;
-    select->nb_planes = av_pix_fmt_count_planes(inlink->format);
+    select->is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB);
+    select->nb_planes = select->is_yuv ? 1 : av_pix_fmt_count_planes(inlink->format);
+
     for (int plane = 0; plane < select->nb_planes; plane++) {
         ptrdiff_t line_size = av_image_get_linesize(inlink->format, inlink->w, plane);
         int vsub = desc->log2_chroma_h;
diff --git a/tests/ref/fate/filter-metadata-scenedetect b/tests/ref/fate/filter-metadata-scenedetect
index 7ce2d67..36c033b 100644
--- a/tests/ref/fate/filter-metadata-scenedetect
+++ b/tests/ref/fate/filter-metadata-scenedetect
@@ -1,11 +1,11 @@ 
 pkt_pts=1620|tag:lavfi.scene_score=1.000000
-pkt_pts=4140|tag:lavfi.scene_score=0.668643
-pkt_pts=5800|tag:lavfi.scene_score=0.996721
-pkt_pts=6720|tag:lavfi.scene_score=0.357390
-pkt_pts=8160|tag:lavfi.scene_score=0.886268
-pkt_pts=9760|tag:lavfi.scene_score=0.926219
-pkt_pts=14080|tag:lavfi.scene_score=0.650033
+pkt_pts=4140|tag:lavfi.scene_score=0.923403
+pkt_pts=5800|tag:lavfi.scene_score=1.000000
+pkt_pts=6720|tag:lavfi.scene_score=0.475643
+pkt_pts=8160|tag:lavfi.scene_score=1.000000
+pkt_pts=9760|tag:lavfi.scene_score=1.000000
+pkt_pts=14080|tag:lavfi.scene_score=0.874623
 pkt_pts=15700|tag:lavfi.scene_score=1.000000
-pkt_pts=18500|tag:lavfi.scene_score=0.316402
-pkt_pts=20040|tag:lavfi.scene_score=0.269509
+pkt_pts=18500|tag:lavfi.scene_score=0.422509
+pkt_pts=20040|tag:lavfi.scene_score=0.352360
 pkt_pts=21760|tag:lavfi.scene_score=1.000000