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); } }