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avfilter/vf_v360: make commands always do relative rotation

This commit is contained in:
Paul B Mahol 2020-10-25 12:46:29 +01:00
parent 0d395767ec
commit d6e903b09b
1 changed files with 17 additions and 8 deletions
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25
libavfilter/vf_v360.c
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@ -3922,7 +3922,7 @@ static inline void rotate(const float rot_quaternion[2][4],
{
float qv[4], temp[4], rqv[4];
qv[0] = 0;
qv[0] = 0.f;
qv[1] = vec[0];
qv[2] = vec[1];
qv[3] = vec[2];
@ -4670,13 +4670,8 @@ static int config_output(AVFilterLink *outlink)
return err;
}
s->rot_quaternion[0][0] = 1.f;
s->rot_quaternion[0][1] = s->rot_quaternion[0][2] = s->rot_quaternion[0][3] = 0.f;
for (int i = 0; i < 4; i++) {
calculate_rotation(s->yaw * 0.25f, s->pitch * 0.25f, s->roll * 0.25f,
s->rot_quaternion, s->rotation_order);
}
calculate_rotation(s->yaw, s->pitch, s->roll,
s->rot_quaternion, s->rotation_order);
set_mirror_modifier(s->h_flip, s->v_flip, s->d_flip, s->output_mirror_modifier);
@ -4712,8 +4707,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
V360Context *s = ctx->priv;
int ret;
s->yaw = s->pitch = s->roll = 0.f;
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
@ -4721,6 +4719,16 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
return config_output(ctx->outputs[0]);
}
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;
return 0;
}
static av_cold void uninit(AVFilterContext *ctx)
{
V360Context *s = ctx->priv;
@ -4762,6 +4770,7 @@ AVFilter ff_vf_v360 = {
.name = "v360",
.description = NULL_IF_CONFIG_SMALL("Convert 360 projection of video."),
.priv_size = sizeof(V360Context),
.init = init,
.uninit = uninit,
.query_formats = query_formats,
.inputs = inputs,