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avfilter/vf_v360: add reset_rot option

This commit is contained in:
Paul B Mahol 2021-10-16 11:37:07 +02:00
parent 3cc3f5de2a
commit 5bcc61ce87
3 changed files with 16 additions and 2 deletions
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3
doc/filters.texi
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@ -21612,6 +21612,9 @@ Set if output video needs to be transposed. Boolean value, by default disabled.
@item alpha_mask
Build mask in alpha plane for all unmapped pixels by marking them fully transparent. Boolean value, by default disabled.
@item reset_rot
Reset rotation of output video. Boolean value, by default disabled.
@end table
@subsection Examples

1
libavfilter/v360.h
View File

@ -122,6 +122,7 @@ typedef struct V360Context {
int in, out;
int interp;
int alpha;
int reset_rot;
int width, height;
char *in_forder;
char *out_forder;

14
libavfilter/vf_v360.c
View File

@ -164,6 +164,7 @@ static const AVOption v360_options[] = {
{ "iv_fov", "input vertical field of view", OFFSET(iv_fov), AV_OPT_TYPE_FLOAT, {.dbl=0.f}, 0.f, 360.f,TFLAGS, "iv_fov"},
{ "id_fov", "input diagonal field of view", OFFSET(id_fov), AV_OPT_TYPE_FLOAT, {.dbl=0.f}, 0.f, 360.f,TFLAGS, "id_fov"},
{"alpha_mask", "build mask in alpha plane", OFFSET(alpha), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "alpha"},
{ "reset_rot", "reset rotation", OFFSET(reset_rot), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1,TFLAGS, "reset_rot"},
{ NULL }
};
@ -4948,6 +4949,12 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
return ff_filter_frame(outlink, out);
}
static void reset_rot(V360Context *s)
{
s->rot_quaternion[0][0] = 1.f;
s->rot_quaternion[0][1] = s->rot_quaternion[0][2] = s->rot_quaternion[0][3] = 0.f;
}
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
@ -4955,11 +4962,15 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
int ret;
s->yaw = s->pitch = s->roll = 0.f;
s->reset_rot = 0;
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
if (s->reset_rot)
reset_rot(s);
return config_output(ctx->outputs[0]);
}
@ -4967,8 +4978,7 @@ static av_cold int init(AVFilterContext *ctx)
{
V360Context *s = ctx->priv;
s->rot_quaternion[0][0] = 1.f;
s->rot_quaternion[0][1] = s->rot_quaternion[0][2] = s->rot_quaternion[0][3] = 0.f;
reset_rot(s);
return 0;
}