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fftools/ffplay: handle flip in display matrix 

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This commit is contained in:
Zhao Zhili 2024-08-01 17:22:53 +08:00
parent 30f090b4f8
commit 523189c744
1 changed files with 9 additions and 4 deletions
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13
fftools/ffplay.c
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@ -1963,16 +1963,21 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
theta = get_rotation(displaymatrix);
if (fabs(theta - 90) < 1.0) {
INSERT_FILT("transpose", "clock");
INSERT_FILT("transpose", displaymatrix[3] > 0 ? "cclock_flip" : "clock");
} else if (fabs(theta - 180) < 1.0) {
INSERT_FILT("hflip", NULL);
INSERT_FILT("vflip", NULL);
if (displaymatrix[0] < 0)
INSERT_FILT("hflip", NULL);
if (displaymatrix[4] < 0)
INSERT_FILT("vflip", NULL);
} else if (fabs(theta - 270) < 1.0) {
INSERT_FILT("transpose", "cclock");
INSERT_FILT("transpose", displaymatrix[3] < 0 ? "clock_flip" : "cclock");
} else if (fabs(theta) > 1.0) {
char rotate_buf[64];
snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);
INSERT_FILT("rotate", rotate_buf);
} else {
if (displaymatrix && displaymatrix[4] < 0)
INSERT_FILT("vflip", NULL);
}
}