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ffmpeg_filter: use get_rotation()

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This unifies the rotation extraction code between ffplay and ffmpeg

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-03 23:53:32 +02:00
parent 4351c288b9
commit 800df6a849
1 changed files with 15 additions and 14 deletions
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27
ffmpeg_filter.c
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@ -700,24 +700,25 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
last_filter = ifilter->filter;
if (ist->autorotate) {
uint8_t* displaymatrix = av_stream_get_side_data(ist->st,
AV_PKT_DATA_DISPLAYMATRIX, NULL);
if (displaymatrix) {
double rot = av_display_rotation_get((int32_t*) displaymatrix);
if (rot < -135 || rot > 135) {
ret = insert_filter(&last_filter, &pad_idx, "vflip", NULL);
if (ret < 0)
return ret;
double theta = get_rotation(ist->st);
if (fabs(theta - 90) < 1.0) {
ret = insert_filter(&last_filter, &pad_idx, "transpose", "clock");
} else if (fabs(theta - 180) < 1.0) {
ret = insert_filter(&last_filter, &pad_idx, "hflip", NULL);
} else if (rot < -45) {
ret = insert_filter(&last_filter, &pad_idx, "transpose", "dir=clock");
} else if (rot > 45) {
ret = insert_filter(&last_filter, &pad_idx, "transpose", "dir=cclock");
if (ret < 0)
return ret;
ret = insert_filter(&last_filter, &pad_idx, "vflip", NULL);
} else if (fabs(theta - 270) < 1.0) {
ret = insert_filter(&last_filter, &pad_idx, "transpose", "cclock");
} else if (fabs(theta) > 1.0) {
char rotate_buf[64];
snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);
ret = insert_filter(&last_filter, &pad_idx, "rotate", rotate_buf);
}
if (ret < 0)
return ret;
}
}
if (ist->framerate.num) {
AVFilterContext *setpts;