我需要創建一個視頻居中放大（縮小）效果和淡入淡出
這是我嘗試執行此操作的命令
ffmpeg -y -r 25 \
-loop 1 -t 6 -i image1.jpg \
-loop 1 -t 6 -i image2.jpg \
-loop 1 -t 6 -i image3.jpg \
-loop 1 -t 6 -i image4.jpg \
-i audio.mp3 -filter_complex "
[0]crop=1280:1280,zoompan=z='min(zoom+0.0015,1.5)':d=700:x='if(gte(zoom,1.5),x,x+1/a)':y='if(gte(zoom,1.5),y,y+1)'[v1]; \
[1]crop=1280:1280,zoompan=z='min(zoom+0.0015,1.5)':d=700:x='if(gte(zoom,1.5),x,x+1/a)':y='if(gte(zoom,1.5),y,y+1)'[v2]; \
[2]crop=1280:1280,zoompan=z='min(zoom+0.0015,1.5)':d=700:x='if(gte(zoom,1.5),x,x+1/a)':y='if(gte(zoom,1.5),y,y+1)'[v3]; \
[3]crop=1280:1280[v4]; \
[v1][v2]xfade=rectcrop:duration=1:offset=5[x1]; \
[x1][v3]xfade=distance:duration=1:offset=10[x2]; \
[x2][v4]xfade=wiperight:duration=1:offset=15,format=yuv420p[v]" \
-map "[v]" -map 4:a -b:v 4000k -movflags +faststart -s 1280x1280 out.mp4
它給出了以下錯誤訊息
[Parsed_xfade_9 @ 00000146d725c400] First input link main parameters (size 1280x720) do not match the corresponding second input link xfade parameters (size 1280x1280)
[Parsed_xfade_9 @ 00000146d725c400] Failed to configure output pad on Parsed_xfade_9
Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #3:0
Conversion failed!
圖片尺寸為 1280x1600
實際上，我不確定我的縮放濾鏡是否應該進行居中縮放，但似乎它會將影像高度降低到 720？
答案1
Zoompan 濾鏡在縮放後縮放輸入。預設尺寸為 1280x720。透過添加s=1280x1280到 Zoompan 過濾器來覆蓋它。