[FFmpeg-devel] [PATCH 1/2] ffplay: add -scaling_quality option for SDL

From: Ramiro Polla <ramiro.polla@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 1/2] ffplay: add -scaling_quality option for SDL
Date: Thu, 30 May 2024 23:36:56 +0200
Message-ID: <20240530213657.1033191-1-ramiro.polla@gmail.com> (raw)

---
 doc/ffplay.texi  | 2 ++
 fftools/ffplay.c | 6 +++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/doc/ffplay.texi b/doc/ffplay.texi
index 93f77eeece..60f883e159 100644
--- a/doc/ffplay.texi
+++ b/doc/ffplay.texi
@@ -72,6 +72,8 @@ as 100.
 Force format.
 @item -window_title @var{title}
 Set window title (default is the input filename).
+@item -scaling_quality @var{value}
+Set SDL_HINT_RENDER_SCALE_QUALITY value (default is "linear").
 @item -left @var{title}
 Set the x position for the left of the window (default is a centered window).
 @item -top @var{title}
diff --git a/fftools/ffplay.c b/fftools/ffplay.c
index b9d11eecee..75d2bec777 100644
--- a/fftools/ffplay.c
+++ b/fftools/ffplay.c
@@ -351,6 +351,7 @@ static int filter_nbthreads = 0;
 static int enable_vulkan = 0;
 static char *vulkan_params = NULL;
 static const char *hwaccel = NULL;
+static const char *scaling_quality = NULL;
 
 /* current context */
 static int is_full_screen;
@@ -3683,6 +3684,7 @@ static const OptionDef options[] = {
     { "framedrop",          OPT_TYPE_BOOL,   OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
     { "infbuf",             OPT_TYPE_BOOL,   OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
     { "window_title",       OPT_TYPE_STRING,          0, { &window_title }, "set window title", "window title" },
+    { "scaling_quality",    OPT_TYPE_STRING, OPT_EXPERT, { &scaling_quality }, "set SDL_HINT_RENDER_SCALE_QUALITY value (default=linear)", "value" },
     { "left",               OPT_TYPE_INT,    OPT_EXPERT, { &screen_left }, "set the x position for the left of the window", "x pos" },
     { "top",                OPT_TYPE_INT,    OPT_EXPERT, { &screen_top }, "set the y position for the top of the window", "y pos" },
     { "vf",                 OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" },
@@ -3831,7 +3833,9 @@ int main(int argc, char **argv)
             }
         }
         window = SDL_CreateWindow(program_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, default_width, default_height, flags);
-        SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
+        if (!scaling_quality)
+            scaling_quality = "linear";
+        SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, scaling_quality);
         if (!window) {
             av_log(NULL, AV_LOG_FATAL, "Failed to create window: %s", SDL_GetError());
             do_exit(NULL);
-- 
2.39.2

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