From: Linjie Fu <linjie.justin...@gmail.com>
Currently the default swscale flags for simple filter graph is bicubic,
however for complex filter graph it uses bilinear as decleared in scale
filter.
$ffmpeg -v verbose -i input.mp4 -vf format=yuv420p,scale=800x600 -an -f null -
[Parsed_scale_1 @ 0x7f86d2c160c0] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:800
h:600 fmt:yuv420p sar:0/1 flags:0x4
$ffmpeg -v verbose -i input.mp4 -filter_complex format=yuv420p,scale=800x600
-an -f null -
[Parsed_scale_1 @ 0x7f8779e046c0] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:800
h:600 fmt:yuv420p sar:0/1 flags:0x2
Set the default flags for scale filter to "bicubic" to match the behaviour in
swscale.
And remove setting defaults in ffmpeg/ffprobe/ffplay.
Signed-off-by: Linjie Fu <linjie.justin...@gmail.com>
---
fftools/cmdutils.c | 8 --------
fftools/ffplay.c | 2 --
fftools/ffprobe.c | 1 -
libavfilter/vf_scale.c | 2 +-
4 files changed, 1 insertion(+), 12 deletions(-)
diff --git a/fftools/cmdutils.c b/fftools/cmdutils.c
index 0b1ef03a25..912e881174 100644
--- a/fftools/cmdutils.c
+++ b/fftools/cmdutils.c
@@ -81,11 +81,6 @@ enum show_muxdemuxers {
SHOW_MUXERS,
};
-void init_opts(void)
-{
- av_dict_set(&sws_dict, "flags", "bicubic", 0);
-}
-
void uninit_opts(void)
{
av_dict_free(&swr_opts);
@@ -670,7 +665,6 @@ static void finish_group(OptionParseContext *octx, int
group_idx,
resample_opts = NULL;
sws_dict = NULL;
swr_opts = NULL;
- init_opts();
memset(&octx->cur_group, 0, sizeof(octx->cur_group));
}
@@ -708,8 +702,6 @@ static void init_parse_context(OptionParseContext *octx,
octx->global_opts.group_def = &global_group;
octx->global_opts.arg = "";
-
- init_opts();
}
void uninit_parse_context(OptionParseContext *octx)
diff --git a/fftools/ffplay.c b/fftools/ffplay.c
index 6b19574eae..46758b9f55 100644
--- a/fftools/ffplay.c
+++ b/fftools/ffplay.c
@@ -3695,8 +3695,6 @@ int main(int argc, char **argv)
#endif
avformat_network_init();
- init_opts();
-
signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
diff --git a/fftools/ffprobe.c b/fftools/ffprobe.c
index f411ba35b5..95263e1e6f 100644
--- a/fftools/ffprobe.c
+++ b/fftools/ffprobe.c
@@ -3721,7 +3721,6 @@ int main(int argc, char **argv)
options = real_options;
parse_loglevel(argc, argv, options);
avformat_network_init();
- init_opts();
#if CONFIG_AVDEVICE
avdevice_register_all();
#endif
diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index f07e01bf90..3029ab4b68 100644
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -900,7 +900,7 @@ static const AVOption scale_options[] = {
{ "width", "Output video width", OFFSET(w_expr),
AV_OPT_TYPE_STRING, .flags = TFLAGS },
{ "h", "Output video height", OFFSET(h_expr),
AV_OPT_TYPE_STRING, .flags = TFLAGS },
{ "height","Output video height", OFFSET(h_expr),
AV_OPT_TYPE_STRING, .flags = TFLAGS },
- { "flags", "Flags to pass to libswscale", OFFSET(flags_str),
AV_OPT_TYPE_STRING, { .str = "bilinear" }, .flags = FLAGS },
+ { "flags", "Flags to pass to libswscale", OFFSET(flags_str),
AV_OPT_TYPE_STRING, { .str = "bicubic" }, .flags = FLAGS },
{ "interl", "set interlacing", OFFSET(interlaced), AV_OPT_TYPE_BOOL, {.i64
= 0 }, -1, 1, FLAGS },
{ "size", "set video size", OFFSET(size_str),
AV_OPT_TYPE_STRING, {.str = NULL}, 0, FLAGS },
{ "s", "set video size", OFFSET(size_str),
AV_OPT_TYPE_STRING, {.str = NULL}, 0, FLAGS },
--
2.31.1
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