From: Zhao Zhili <quinkblack@foxmail.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Zhao Zhili <zhilizhao@tencent.com>
Subject: [FFmpeg-devel] [PATCH] fftools/ffplay: handle flip in display matrix
Date: Thu, 1 Aug 2024 17:22:53 +0800
Message-ID: <tencent_FF3BCD974FF555472721B8CF962ACD5E2007@qq.com> (raw)
From: Zhao Zhili <zhilizhao@tencent.com>
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
---
fftools/ffplay.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/fftools/ffplay.c b/fftools/ffplay.c
index efcd4f6452..60d8874eab 100644
--- a/fftools/ffplay.c
+++ b/fftools/ffplay.c
@@ -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);
}
}
--
2.42.0
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