From 093a504414ef7781123f0db49326b0059e32a818 Mon Sep 17 00:00:00 2001
From: Martin Vobruba <vobruba.martin@gmail.com>
Date: Fri, 26 Apr 2019 08:17:11 +0200
Subject: [PATCH] avfilter/avf_showwaves: Add draw mode also to showwavespic
 filter

See commit a8c2d375ca68b7f001564ced14d8ac0757f53a29
---
 doc/filters.texi            | 14 ++++++++++++++
 libavfilter/avf_showwaves.c |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/doc/filters.texi b/doc/filters.texi
index 7cc3937b40..cd82869849 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -22704,6 +22704,20 @@ Cubic root.
 @end table
 
 Default is linear.
+
+@item draw
+Set the draw mode.
+
+Available values are:
+@table @samp
+@item scale
+Scale pixel values for each drawn sample.
+
+@item full
+Draw every sample directly.
+@end table
+
+Default value is @code{scale}.
 @end table
 
 @subsection Examples
diff --git a/libavfilter/avf_showwaves.c b/libavfilter/avf_showwaves.c
index 0e683cf42d..a0d2b25d55 100644
--- a/libavfilter/avf_showwaves.c
+++ b/libavfilter/avf_showwaves.c
@@ -765,6 +765,9 @@ static const AVOption showwavespic_options[] = {
         { "log", "logarithmic",    0, AV_OPT_TYPE_CONST, {.i64=SCALE_LOG}, .flags=FLAGS, .unit="scale"},
         { "sqrt", "square root",   0, AV_OPT_TYPE_CONST, {.i64=SCALE_SQRT}, .flags=FLAGS, .unit="scale"},
         { "cbrt", "cubic root",    0, AV_OPT_TYPE_CONST, {.i64=SCALE_CBRT}, .flags=FLAGS, .unit="scale"},
+    { "draw", "set draw mode", OFFSET(draw_mode), AV_OPT_TYPE_INT, {.i64 = DRAW_SCALE}, 0, DRAW_NB-1, FLAGS, .unit="draw" },
+        { "scale", "scale pixel values for each drawn sample", 0, AV_OPT_TYPE_CONST, {.i64=DRAW_SCALE}, .flags=FLAGS, .unit="draw"},
+        { "full",  "draw every pixel for sample directly",     0, AV_OPT_TYPE_CONST, {.i64=DRAW_FULL},  .flags=FLAGS, .unit="draw"},
     { NULL }
 };