ffmpeg overlay rotated images onto a video, how to transparent the output area not covered by the rotated...
I am using ffmpeg to overlay a picture on a movie. The requirement is to rotate the picture through an arbitrary angle. Using filter_complex, I can overlay the rotated picture now. However, the output area of the picture is filled in black and not transparent. I checked the docs, it says can specify the fill color, according to this, but I failed to do so. Any ideas?
I copy my command line here:
./ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=-30*PI/180:c=black@'0x00':ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
images ffmpeg transparency rotate
edited Jul 2 '14 at 10:38
Cornelius
2,3961923
asked Jul 2 '14 at 8:49
xftzgxftzg
32
add a comment |
I am using ffmpeg to overlay a picture on a movie. The requirement is to rotate the picture through an arbitrary angle. Using filter_complex, I can overlay the rotated picture now. However, the output area of the picture is filled in black and not transparent. I checked the docs, it says can specify the fill color, according to this, but I failed to do so. Any ideas?
I copy my command line here:
./ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=-30*PI/180:c=black@'0x00':ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
images ffmpeg transparency rotate
edited Jul 2 '14 at 10:38
Cornelius
2,3961923
asked Jul 2 '14 at 8:49
xftzgxftzg
32
Have you tried this?-vcodec png -pix_fmt bgra overlayavatar.mov
– Ĭsααc tիε βöss
Jul 2 '14 at 10:23
sorry, but i am not using any PNGs with alpha channel. besides, I do not want to transparent the picture itself.
– xftzg
Jul 3 '14 at 4:55
add a comment |
I am using ffmpeg to overlay a picture on a movie. The requirement is to rotate the picture through an arbitrary angle. Using filter_complex, I can overlay the rotated picture now. However, the output area of the picture is filled in black and not transparent. I checked the docs, it says can specify the fill color, according to this, but I failed to do so. Any ideas?
I copy my command line here:
./ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=-30*PI/180:c=black@'0x00':ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
images ffmpeg transparency rotate
edited Jul 2 '14 at 10:38
Cornelius
2,3961923
asked Jul 2 '14 at 8:49
xftzgxftzg
32
I am using ffmpeg to overlay a picture on a movie. The requirement is to rotate the picture through an arbitrary angle. Using filter_complex, I can overlay the rotated picture now. However, the output area of the picture is filled in black and not transparent. I checked the docs, it says can specify the fill color, according to this, but I failed to do so. Any ideas?
I copy my command line here:
./ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=-30*PI/180:c=black@'0x00':ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
images ffmpeg transparency rotate
images ffmpeg transparency rotate
edited Jul 2 '14 at 10:38
Cornelius
2,3961923
asked Jul 2 '14 at 8:49
xftzgxftzg
32
edited Jul 2 '14 at 10:38
Cornelius
2,3961923
asked Jul 2 '14 at 8:49
xftzgxftzg
32
edited Jul 2 '14 at 10:38
Cornelius
2,3961923
edited Jul 2 '14 at 10:38
Cornelius
2,3961923
edited Jul 2 '14 at 10:38
Cornelius
2,3961923
2,3961923
asked Jul 2 '14 at 8:49
xftzgxftzg
32
asked Jul 2 '14 at 8:49
xftzgxftzg
32
asked Jul 2 '14 at 8:49
xftzgxftzg
32
32
Have you tried this?-vcodec png -pix_fmt bgra overlayavatar.mov
– Ĭsααc tիε βöss
Jul 2 '14 at 10:23
sorry, but i am not using any PNGs with alpha channel. besides, I do not want to transparent the picture itself.
– xftzg
Jul 3 '14 at 4:55
add a comment |
Have you tried this?-vcodec png -pix_fmt bgra overlayavatar.mov
– Ĭsααc tիε βöss
Jul 2 '14 at 10:23
sorry, but i am not using any PNGs with alpha channel. besides, I do not want to transparent the picture itself.
– xftzg
Jul 3 '14 at 4:55
Have you tried this?
-vcodec png -pix_fmt bgra overlayavatar.mov– Ĭsααc tիε βöss
Jul 2 '14 at 10:23
Have you tried this?
-vcodec png -pix_fmt bgra overlayavatar.mov– Ĭsααc tիε βöss
Jul 2 '14 at 10:23
sorry, but i am not using any PNGs with alpha channel. besides, I do not want to transparent the picture itself.
– xftzg
Jul 3 '14 at 4:55
sorry, but i am not using any PNGs with alpha channel. besides, I do not want to transparent the picture itself.
– xftzg
Jul 3 '14 at 4:55
add a comment |
1 Answer
1
active
oldest
votes
for transparent try c=none.
ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=- 30*PI/180:c=none:ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
edited Oct 30 '14 at 11:47
Kunal
1,58551726
answered Oct 30 '14 at 10:54
Apostol VictorApostol Victor
16
add a comment |
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1 Answer
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1 Answer
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for transparent try c=none.
ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=- 30*PI/180:c=none:ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
edited Oct 30 '14 at 11:47
Kunal
1,58551726
answered Oct 30 '14 at 10:54
Apostol VictorApostol Victor
16
add a comment |
for transparent try c=none.
ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=- 30*PI/180:c=none:ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
edited Oct 30 '14 at 11:47
Kunal
1,58551726
answered Oct 30 '14 at 10:54
Apostol VictorApostol Victor
16
add a comment |
for transparent try c=none.
ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=- 30*PI/180:c=none:ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
edited Oct 30 '14 at 11:47
Kunal
1,58551726
answered Oct 30 '14 at 10:54
Apostol VictorApostol Victor
16
for transparent try c=none.
ffmpeg -i mersyvideo.mp4 -i avatar.jpg -filter_complex "[1:v] rotate=- 30*PI/180:c=none:ow=rotw(iw):oh=roth(ih) [rotate];[0:v][rotate] overlay=40:10" -codec:a copy output/overlayavatar.mp4
edited Oct 30 '14 at 11:47
Kunal
1,58551726
answered Oct 30 '14 at 10:54
Apostol VictorApostol Victor
16
edited Oct 30 '14 at 11:47
Kunal
1,58551726
edited Oct 30 '14 at 11:47
Kunal
1,58551726
edited Oct 30 '14 at 11:47
Kunal
1,58551726
1,58551726
answered Oct 30 '14 at 10:54
Apostol VictorApostol Victor
16
answered Oct 30 '14 at 10:54
Apostol VictorApostol Victor
16
answered Oct 30 '14 at 10:54
Apostol VictorApostol Victor
16
16
add a comment |
add a comment |
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Have you tried this?
-vcodec png -pix_fmt bgra overlayavatar.mov– Ĭsααc tիε βöss
Jul 2 '14 at 10:23
sorry, but i am not using any PNGs with alpha channel. besides, I do not want to transparent the picture itself.
– xftzg
Jul 3 '14 at 4:55