#11442: Scale followed by vstack stopped working
-------------------------------------+-------------------------------------
Reporter: Marth64 | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
Since e61b9d4094d76f5fede0b65139d17add281e6e45 fftools/ffmpeg: propagate
decoded_side_data from decoded streams to the filterchain
How to reproduce:
{{{
ffmpeg -i tst.png -i tst.png -filter_complex
"[0:v:0]scale=720:480[front];[1:v:0]scale=720:480[back];[front][back]vstack=2"
-f null -
}}}
Result
{{{
ffmpeg version N-118362-ge61b9d4094 Copyright (c) 2000-2025 the FFmpeg
developers
built with Apple clang version 16.0.0 (clang-1600.0.26.6)
configuration: --enable-debug=3 --enable-nonfree --enable-gpl --enable-
demuxer=dvdvideo --enable-libdvdread --enable-libdvdnav --samples=fate-
suite/
libavutil 59. 55.100 / 59. 55.100
libavcodec 61. 31.101 / 61. 31.101
libavformat 61. 9.106 / 61. 9.106
libavdevice 61. 4.100 / 61. 4.100
libavfilter 10. 9.100 / 10. 9.100
libswscale 8. 13.100 / 8. 13.100
libswresample 5. 4.100 / 5. 4.100
libpostproc 58. 4.100 / 58. 4.100
Input #0, png_pipe, from 'tst.png':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: png, rgba(pc, gbr/unknown/unknown), 720x480 [SAR
971:894 DAR 971:596], 25 fps, 25 tbr, 25 tbn
Input #1, png_pipe, from 'tst.png':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: png, rgba(pc, gbr/unknown/unknown), 720x480 [SAR
971:894 DAR 971:596], 25 fps, 25 tbr, 25 tbn
Stream mapping:
Stream #0:0 (png) -> scale:default
Stream #1:0 (png) -> scale:default
vstack:default -> Stream #0:0 (wrapped_avframe)
Press [q] to stop, [?] for help
[Parsed_vstack_2 @ 0x600002628180] Input 1 width 0 does not match input 0
width 720.
[Parsed_vstack_2 @ 0x600002628180] Failed to configure output pad on
Parsed_vstack_2
[fc#0 @ 0x600002228000] Error reinitializing filters!
[fc#0 @ 0x600002228000] Task finished with error code: -22 (Invalid
argument)
[fc#0 @ 0x600002228000] Terminating thread with return code -22 (Invalid
argument)
[vost#0:0/wrapped_avframe @ 0x15b7086f0] [enc:wrapped_avframe @
0x6000038285b0] Could not open encoder before EOF
[vost#0:0/wrapped_avframe @ 0x15b7086f0] Task finished with error code:
-22 (Invalid argument)
[vost#0:0/wrapped_avframe @ 0x15b7086f0] Terminating thread with return
code -22 (Invalid argument)
[out#0/null @ 0x600002624240] Nothing was written into output file,
because at least one of its streams received no packets.
frame= 0 fps=0.0 q=0.0 Lsize= 0KiB time=N/A bitrate=N/A speed=N/A
Conversion failed!
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11442>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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