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首页 > 解决方案 > 将带有 -filter_complex 的水印覆盖添加到多个输出（破折号）

ffmpeg - 将带有 -filter_complex 的水印覆盖添加到多个输出（破折号）

问题描述

我正在为 DASH（无音频）创建一组文件：

ffmpeg -i "input.mov"
 -y
 -keyint_min 100 -g 100
 -sc_threshold 0
 -c:v libx264
 -pix_fmt yuv420p
 -map v:0 -s:0 320x180 -b:v:0 681.125k -maxrate:0 681.125k -bufsize:0 340.5625k
 -map v:0 -s:1 640x360 -b:v:1 2724.5k -maxrate:1 2724.5k -bufsize:1 1362.25k
 -map v:0 -s:2 1280x720 -b:v:2 5449k -maxrate:2 5449k -bufsize:2 2724.5k
 -map v:0 -s:3 1920x1080 -b:v:3 10898k -maxrate:3 10898k -bufsize:3 5449k
 -init_seg_name "myname_$RepresentationID$.$ext$"
 -media_seg_name "myname_$RepresentationID$-$Number%05d$.$ext$"
 -use_template 1 -use_timeline 1
 -seg_duration 4 -adaptation_sets "id=0,streams=v"
 -f dash "myname.mpd"

现在我想添加一个水印。它是如何完成的？我试过类似的东西：

ffmpeg -i "input.mov"
 -y
 -i "watermark.png" // Added
 -filter_complex "overlay=24:960" // Added
 -keyint_min 100 -g 100
 -sc_threshold 0
 -c:v libx264
 -pix_fmt yuv420p
 -map v:0 -s:0 320x180 -b:v:0 681.125k -maxrate:0 681.125k -bufsize:0 340.5625k
 -map v:0 -s:1 640x360 -b:v:1 2724.5k -maxrate:1 2724.5k -bufsize:1 1362.25k
 -map v:0 -s:2 1280x720 -b:v:2 5449k -maxrate:2 5449k -bufsize:2 2724.5k
 -map v:0 -s:3 1920x1080 -b:v:3 10898k -maxrate:3 10898k -bufsize:3 5449k
 -init_seg_name "myname_$RepresentationID$.$ext$"
 -media_seg_name "myname_$RepresentationID$-$Number%05d$.$ext$"
 -use_template 1 -use_timeline 1
 -seg_duration 4 -adaptation_sets "id=0,streams=v"
 -f dash "myname.mpd"

但这导致只能获得 180p 版本的视频。我怎样才能仍然获得所有版本的带有叠加层的视频？

补充：我也试过了：

ffmpeg -i "input.mov"
 -y
 -i "watermark.png"
 -filter_complex "[0:v][1:v]overlay=24:960[out0][out1][out2][out3]"
 -keyint_min 100 -g 100
 -sc_threshold 0
 -c:v libx264
 -pix_fmt yuv420p
 -map "[out0]" -s:0 320x180 -b:v:0 681.125k -maxrate:0 681.125k -bufsize:0 340.5625k
 -map "[out1]" -s:1 640x360 -b:v:1 2724.5k -maxrate:1 2724.5k -bufsize:1 1362.25k
 -map "[out2]" -s:2 1280x720 -b:v:2 5449k -maxrate:2 5449k -bufsize:2 2724.5k
 -map "[out3]" -s:3 1920x1080 -b:v:3 10898k -maxrate:3 10898k -bufsize:3 5449k
 -init_seg_name "myname_$RepresentationID$.$ext$"
 -media_seg_name "myname_$RepresentationID$-$Number%05d$.$ext$"
 -use_template 1 -use_timeline 1
 -seg_duration 4 -adaptation_sets "id=0,streams=v"
 -f dash "myname.mpd"

这会导致错误：没有输出焊盘可以与链接标签“out1”相关联。

标签： ffmpeg

解决方案

添加拆分过滤器：

ffmpeg -i "input.mov"
 -y
 -i "watermark.png"
 -filter_complex "[0:v][1:v]overlay=24:960,format=yuv420p,split=4[out0][out1][out2][out3]"
 -keyint_min 100 -g 100
 -sc_threshold 0
 -c:v libx264
 -map "[out0]" -s:0 320x180 -b:v:0 681.125k -maxrate:0 681.125k -bufsize:0 340.5625k
 -map "[out1]" -s:1 640x360 -b:v:1 2724.5k -maxrate:1 2724.5k -bufsize:1 1362.25k
 -map "[out2]" -s:2 1280x720 -b:v:2 5449k -maxrate:2 5449k -bufsize:2 2724.5k
 -map "[out3]" -s:3 1920x1080 -b:v:3 10898k -maxrate:3 10898k -bufsize:3 5449k
 -init_seg_name "myname_$RepresentationID$.$ext$"
 -media_seg_name "myname_$RepresentationID$-$Number%05d$.$ext$"
 -use_template 1 -use_timeline 1
 -seg_duration 4 -adaptation_sets "id=0,streams=v"
 -f dash "myname.mpd"

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