ffmpeg slides to video with padding shows only one image
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I usually create video clips of still images using something very similar to
This StackOverflow example. However, this time, I have a set of images of varying sizes, so clipped in options from This OTHER StackOverflow example to pad the images to a set size
to come up with this:
ffmpeg -r 1 -i slide_%2d.png -filter_complex "fps=25,format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" -y tmp.mp4
Of course it doesn't work as hoped, but this is the 21st Century, 'Google It' way!
What I'm attempting to do is create a command which feeds contiguously-numbered png images (starting at 01), in the current directory, at the rate of one per second, and outputs them as an mp4 file, suitably padded to a 16:9 ratio image size, with an eye-bleeding green background/surround (it's a test rig – I want to see what's what, quickly) at an arbitrary rate of 25 frames per second on the output (all 25 frames to be of the same input input image, of course).
What I get is the last frame of the image set for a duration that varies, depending on the contents of the -r flag.
Could somebody help me out here, please, and show me where I'm going wrong? I can spend delighted hours searching and tinkering, but I should be wasting my time on other fascinating projects now.
All the best,
QuinB
ffmpeg v. N-92396-g55e021f39b
OS Win10
video ffmpeg images
asked Dec 3 at 14:01
Quin Benson
32
|
show 6 more comments
up vote
0
down vote
favorite
I usually create video clips of still images using something very similar to
This StackOverflow example. However, this time, I have a set of images of varying sizes, so clipped in options from This OTHER StackOverflow example to pad the images to a set size
to come up with this:
ffmpeg -r 1 -i slide_%2d.png -filter_complex "fps=25,format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" -y tmp.mp4
Of course it doesn't work as hoped, but this is the 21st Century, 'Google It' way!
What I'm attempting to do is create a command which feeds contiguously-numbered png images (starting at 01), in the current directory, at the rate of one per second, and outputs them as an mp4 file, suitably padded to a 16:9 ratio image size, with an eye-bleeding green background/surround (it's a test rig – I want to see what's what, quickly) at an arbitrary rate of 25 frames per second on the output (all 25 frames to be of the same input input image, of course).
What I get is the last frame of the image set for a duration that varies, depending on the contents of the -r flag.
Could somebody help me out here, please, and show me where I'm going wrong? I can spend delighted hours searching and tinkering, but I should be wasting my time on other fascinating projects now.
All the best,
QuinB
ffmpeg v. N-92396-g55e021f39b
OS Win10
video ffmpeg images
asked Dec 3 at 14:01
Quin Benson
32
Works here. Share full log.
– Gyan
Dec 3 at 20:24
Here y'go. tmplog_20181203a.txt Thanks for taking a look.
– Quin Benson
Dec 3 at 21:20
Cutting back the command to: ffmpeg -framerate 1 -i "test_%2d.png" "out03.mp4" produces output showing multiple images viewable in ffplay (although, obviously, not scaled as required) Adding in fps produces a short clip with a single image. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "fps=25" "out06.mp4" omitting fps but scaling and formatting produces output showing multiple images ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768" "out07.mp4" Adding in force_original_aspect_ratio=decrease gives 1 image
– Quin Benson
Dec 4 at 9:23
however, adding in the pad sequence creates an output showing multiple images. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out10.mp4" "Eh, what?"
– Quin Benson
Dec 4 at 9:47
ffmpeg -framerate 1 -i "test_%2d.png" -framerate 25 -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out15.mp4" This produces output, as required, at 25fps who knows why.
– Quin Benson
Dec 4 at 9:57
|
show 6 more comments
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I usually create video clips of still images using something very similar to
This StackOverflow example. However, this time, I have a set of images of varying sizes, so clipped in options from This OTHER StackOverflow example to pad the images to a set size
to come up with this:
ffmpeg -r 1 -i slide_%2d.png -filter_complex "fps=25,format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" -y tmp.mp4
Of course it doesn't work as hoped, but this is the 21st Century, 'Google It' way!
What I'm attempting to do is create a command which feeds contiguously-numbered png images (starting at 01), in the current directory, at the rate of one per second, and outputs them as an mp4 file, suitably padded to a 16:9 ratio image size, with an eye-bleeding green background/surround (it's a test rig – I want to see what's what, quickly) at an arbitrary rate of 25 frames per second on the output (all 25 frames to be of the same input input image, of course).
What I get is the last frame of the image set for a duration that varies, depending on the contents of the -r flag.
Could somebody help me out here, please, and show me where I'm going wrong? I can spend delighted hours searching and tinkering, but I should be wasting my time on other fascinating projects now.
All the best,
QuinB
ffmpeg v. N-92396-g55e021f39b
OS Win10
video ffmpeg images
asked Dec 3 at 14:01
Quin Benson
32
I usually create video clips of still images using something very similar to
This StackOverflow example. However, this time, I have a set of images of varying sizes, so clipped in options from This OTHER StackOverflow example to pad the images to a set size
to come up with this:
ffmpeg -r 1 -i slide_%2d.png -filter_complex "fps=25,format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" -y tmp.mp4
Of course it doesn't work as hoped, but this is the 21st Century, 'Google It' way!
What I'm attempting to do is create a command which feeds contiguously-numbered png images (starting at 01), in the current directory, at the rate of one per second, and outputs them as an mp4 file, suitably padded to a 16:9 ratio image size, with an eye-bleeding green background/surround (it's a test rig – I want to see what's what, quickly) at an arbitrary rate of 25 frames per second on the output (all 25 frames to be of the same input input image, of course).
What I get is the last frame of the image set for a duration that varies, depending on the contents of the -r flag.
Could somebody help me out here, please, and show me where I'm going wrong? I can spend delighted hours searching and tinkering, but I should be wasting my time on other fascinating projects now.
All the best,
QuinB
ffmpeg v. N-92396-g55e021f39b
OS Win10
video ffmpeg images
video ffmpeg images
asked Dec 3 at 14:01
Quin Benson
32
asked Dec 3 at 14:01
Quin Benson
32
asked Dec 3 at 14:01
Quin Benson
32
asked Dec 3 at 14:01
Quin Benson
32
asked Dec 3 at 14:01
Quin Benson
32
32
Works here. Share full log.
– Gyan
Dec 3 at 20:24
Here y'go. tmplog_20181203a.txt Thanks for taking a look.
– Quin Benson
Dec 3 at 21:20
Cutting back the command to: ffmpeg -framerate 1 -i "test_%2d.png" "out03.mp4" produces output showing multiple images viewable in ffplay (although, obviously, not scaled as required) Adding in fps produces a short clip with a single image. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "fps=25" "out06.mp4" omitting fps but scaling and formatting produces output showing multiple images ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768" "out07.mp4" Adding in force_original_aspect_ratio=decrease gives 1 image
– Quin Benson
Dec 4 at 9:23
however, adding in the pad sequence creates an output showing multiple images. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out10.mp4" "Eh, what?"
– Quin Benson
Dec 4 at 9:47
ffmpeg -framerate 1 -i "test_%2d.png" -framerate 25 -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out15.mp4" This produces output, as required, at 25fps who knows why.
– Quin Benson
Dec 4 at 9:57
|
show 6 more comments
Works here. Share full log.
– Gyan
Dec 3 at 20:24
Here y'go. tmplog_20181203a.txt Thanks for taking a look.
– Quin Benson
Dec 3 at 21:20
Cutting back the command to: ffmpeg -framerate 1 -i "test_%2d.png" "out03.mp4" produces output showing multiple images viewable in ffplay (although, obviously, not scaled as required) Adding in fps produces a short clip with a single image. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "fps=25" "out06.mp4" omitting fps but scaling and formatting produces output showing multiple images ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768" "out07.mp4" Adding in force_original_aspect_ratio=decrease gives 1 image
– Quin Benson
Dec 4 at 9:23
however, adding in the pad sequence creates an output showing multiple images. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out10.mp4" "Eh, what?"
– Quin Benson
Dec 4 at 9:47
ffmpeg -framerate 1 -i "test_%2d.png" -framerate 25 -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out15.mp4" This produces output, as required, at 25fps who knows why.
– Quin Benson
Dec 4 at 9:57
Works here. Share full log.
– Gyan
Dec 3 at 20:24
Works here. Share full log.
– Gyan
Dec 3 at 20:24
Here y'go. tmplog_20181203a.txt Thanks for taking a look.
– Quin Benson
Dec 3 at 21:20
Here y'go. tmplog_20181203a.txt Thanks for taking a look.
– Quin Benson
Dec 3 at 21:20
Cutting back the command to: ffmpeg -framerate 1 -i "test_%2d.png" "out03.mp4" produces output showing multiple images viewable in ffplay (although, obviously, not scaled as required) Adding in fps produces a short clip with a single image. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "fps=25" "out06.mp4" omitting fps but scaling and formatting produces output showing multiple images ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768" "out07.mp4" Adding in force_original_aspect_ratio=decrease gives 1 image
– Quin Benson
Dec 4 at 9:23
Cutting back the command to: ffmpeg -framerate 1 -i "test_%2d.png" "out03.mp4" produces output showing multiple images viewable in ffplay (although, obviously, not scaled as required) Adding in fps produces a short clip with a single image. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "fps=25" "out06.mp4" omitting fps but scaling and formatting produces output showing multiple images ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768" "out07.mp4" Adding in force_original_aspect_ratio=decrease gives 1 image
– Quin Benson
Dec 4 at 9:23
however, adding in the pad sequence creates an output showing multiple images. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out10.mp4" "Eh, what?"
– Quin Benson
Dec 4 at 9:47
however, adding in the pad sequence creates an output showing multiple images. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out10.mp4" "Eh, what?"
– Quin Benson
Dec 4 at 9:47
ffmpeg -framerate 1 -i "test_%2d.png" -framerate 25 -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out15.mp4" This produces output, as required, at 25fps who knows why.
– Quin Benson
Dec 4 at 9:57
ffmpeg -framerate 1 -i "test_%2d.png" -framerate 25 -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out15.mp4" This produces output, as required, at 25fps who knows why.
– Quin Benson
Dec 4 at 9:57
|
show 6 more comments
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Works here. Share full log.
– Gyan
Dec 3 at 20:24
Here y'go. tmplog_20181203a.txt Thanks for taking a look.
– Quin Benson
Dec 3 at 21:20
Cutting back the command to: ffmpeg -framerate 1 -i "test_%2d.png" "out03.mp4" produces output showing multiple images viewable in ffplay (although, obviously, not scaled as required) Adding in fps produces a short clip with a single image. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "fps=25" "out06.mp4" omitting fps but scaling and formatting produces output showing multiple images ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768" "out07.mp4" Adding in force_original_aspect_ratio=decrease gives 1 image
– Quin Benson
Dec 4 at 9:23
however, adding in the pad sequence creates an output showing multiple images. ffmpeg -framerate 1 -i "test_%2d.png" -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out10.mp4" "Eh, what?"
– Quin Benson
Dec 4 at 9:47
ffmpeg -framerate 1 -i "test_%2d.png" -framerate 25 -filter_complex "format=yuv420p,scale=1024:768:force_original_aspect_ratio=decrease,pad=1024:768:x=(1024-iw)/2:y=(768-ih)/2:color=green" "out15.mp4" This produces output, as required, at 25fps who knows why.
– Quin Benson
Dec 4 at 9:57