通过ffmpeg命令合并多部电影的音频
Merge audio of multiple movies by ffmpeg command
我想将 3 个视频文件合并为一个。我的问题是我只能听到 2 的音频。其中一个静音了。
我执行的命令将依次显示 3 部电影，并且应该播放整个 3 部电影的音频。
这是我的查询：
complexCommand = new String[]{"-i", tempPath1, "-i", tempPath2,"-i", tempPath3,"-filter_complex",
"[0:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=green[a];" +
"[1:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=red[b];" +
"[2:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=blue[c];" +
"[b][c]hstack=inputs=2,scale=iw/2:-2[bottom];" +
"[a][bottom]vstack=inputs=2,scale=ih*2:-2[video];" +
"[0:a][1:a]amerge=inputs=2[audio];" + // take audio first movie, take audio second movie and merge with 2 inputs
"[audio][2:a]amerge=inputs=2[audio1]",
"-map", // map of the video
"[video]",
"-map", // map of the audio
"[audio1]",
"-ac",
"2", // number of chanels
outputFilePath};
这个命令的结果是我只能听到电影a和b。
非常感谢:)
编辑
我也试过这个：
complexCommand = new String[]{"-i", tempPath1, "-i", tempPath2,"-i", tempPath3,"-filter_complex",
"[0:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=green[a];" +
"[1:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=red[b];" +
"[2:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=blue[c];" +
"[b][c]hstack=inputs=2,scale=iw/2:-2[bottom];" +
"[a][bottom]vstack=inputs=2,scale=ih*2:-2[video];" +
"[0:a][1:a][2:a]amerge=inputs=3[audio]",
"-map", // map of the video
"[video]",
"-map", // map of the audio
"[audio]",
"-ac",
"2", // number of chanels
outputFilePath};
另一个编辑
又查了下，发现他并没有合并上次的电影音频。另外，如果我有 4 部电影，它会合并 3 部电影，你听不到最后一部电影。
日志（太长 - 这是它的后半部分）：
10.417 Started command progress : ffmpeg frame= 102 fps=1.2 q=28.0 size= 344kB time=00:00:04.24 bitrate= 662.5kbits/s dup=1 drop=122 speed=0.0495x
16.670 Started command progress : ffmpeg frame= 103 fps=1.1 q=28.0 size= 361kB time=00:00:04.29 bitrate= 689.2kbits/s dup=1 drop=123 speed=0.0466x
17.329 Started command progress : ffmpeg frame= 104 fps=1.1 q=28.0 size= 366kB time=00:00:04.33 bitrate= 691.2kbits/s dup=1 drop=124 speed=0.0467x
18.067 Started command progress : ffmpeg frame= 105 fps=1.1 q=28.0 size= 368kB time=00:00:04.37 bitrate= 688.3kbits/s dup=1 drop=125 speed=0.0468x
18.658 Started command progress : ffmpeg frame= 106 fps=1.1 q=28.0 size= 371kB time=00:00:04.41 bitrate= 687.5kbits/s dup=1 drop=127 speed=0.0469x
19.275 Started command progress : ffmpeg frame= 107 fps=1.1 q=28.0 size= 384kB time=00:00:04.46 bitrate= 705.0kbits/s dup=1 drop=128 speed=0.0471x
20.951 Started command progress : ffmpeg frame= 108 fps=1.1 q=28.0 size= 388kB time=00:00:04.50 bitrate= 706.2kbits/s dup=1 drop=129 speed=0.0467x
21.619 Started command progress : ffmpeg frame= 109 fps=1.1 q=28.0 size= 390kB time=00:00:04.52 bitrate= 706.2kbits/s dup=1 drop=130 speed=0.0466x
22.170 Started command progress : ffmpeg frame= 110 fps=1.1 q=28.0 size= 393kB time=00:00:04.56 bitrate= 704.5kbits/s dup=1 drop=132 speed=0.0468x
25.697 Started command progress : ffmpeg frame= 111 fps=1.1 q=28.0 size= 408kB time=00:00:04.63 bitrate= 720.8kbits/s dup=1 drop=133 speed=0.0458x
30.467 Started command progress : ffmpeg frame= 112 fps=1.1 q=28.0 size= 413kB time=00:00:04.67 bitrate= 723.8kbits/s dup=1 drop=134 speed=0.0441x
31.884 Started command progress : ffmpeg frame= 113 fps=1.1 q=28.0 size= 415kB time=00:00:04.69 bitrate= 723.9kbits/s dup=1 drop=135 speed=0.0437x
32.360 Started command progress : ffmpeg frame= 113 fps=1.0 q=28.0 size= 415kB time=00:00:04.73 bitrate= 717.4kbits/s dup=1 drop=136 speed=0.0439x
37.274 Started command progress : ffmpeg frame= 115 fps=1.0 q=28.0 size= 435kB time=00:00:04.80 bitrate= 741.3kbits/s dup=1 drop=138 speed=0.0426x
38.060 Started command progress : ffmpeg frame= 116 fps=1.0 q=28.0 size= 439kB time=00:00:04.82 bitrate= 746.1kbits/s dup=1 drop=139 speed=0.0425x
38.779 Started command progress : ffmpeg frame= 117 fps=1.0 q=28.0 size= 441kB time=00:00:04.86 bitrate= 743.2kbits/s dup=1 drop=140 speed=0.0426x
39.463 Started command progress : ffmpeg frame= 118 fps=1.0 q=28.0 size= 445kB time=00:00:04.90 bitrate= 742.3kbits/s dup=1 drop=142 speed=0.0427x
40.074 Started command progress : ffmpeg frame= 119 fps=1.0 q=28.0 size= 458kB time=00:00:04.97 bitrate= 753.8kbits/s dup=1 drop=143 speed=0.043x
42.906 Started command progress : ffmpeg frame= 120 fps=1.0 q=28.0 size= 462kB time=00:00:04.99 bitrate= 758.1kbits/s dup=1 drop=144 speed=0.0422x
43.884 Started command progress : ffmpeg frame= 121 fps=1.0 q=28.0 size= 464kB time=00:00:05.03 bitrate= 754.6kbits/s dup=1 drop=145 speed=0.0422x
44.378 Started command progress : ffmpeg frame= 121 fps=1.0 q=28.0 size= 464kB time=00:00:05.07 bitrate= 748.2kbits/s dup=1 drop=146 speed=0.0424x
52.351 Started command progress : ffmpeg frame= 123 fps=1.0 q=28.0 size= 481kB time=00:00:05.12 bitrate= 768.5kbits/s dup=1 drop=148 speed=0.0401x
55.804 Started command progress : ffmpeg frame= 124 fps=0.9 q=28.0 size= 485kB time=00:00:05.16 bitrate= 768.6kbits/s dup=1 drop=149 speed=0.0394x
56.404 Started command progress : ffmpeg frame= 124 fps=0.9 q=28.0 size= 485kB time=00:00:05.18 bitrate= 765.4kbits/s dup=1 drop=149 speed=0.0393x
57.011 Started command progress : ffmpeg frame= 125 fps=0.9 q=28.0 size= 487kB time=00:00:05.20 bitrate= 765.4kbits/s dup=1 drop=150 speed=0.0393x
57.549 Started command progress : ffmpeg frame= 125 fps=0.9 q=28.0 size= 487kB time=00:00:05.25 bitrate= 759.2kbits/s dup=1 drop=151 speed=0.0395x
58.072 Started command progress : ffmpeg frame= 126 fps=0.9 q=28.0 size= 489kB time=00:00:05.27 bitrate= 760.4kbits/s dup=1 drop=152 speed=0.0395x
03.052 Started command progress : ffmpeg frame= 127 fps=0.9 q=28.0 size= 504kB time=00:00:05.29 bitrate= 779.9kbits/s dup=1 drop=153 speed=0.0382x
04.000 Started command progress : ffmpeg frame= 128 fps=0.9 q=28.0 size= 509kB time=00:00:05.33 bitrate= 781.5kbits/s dup=1 drop=154 speed=0.0383x
04.841 Started command progress : ffmpeg frame= 129 fps=0.9 q=28.0 size= 511kB time=00:00:05.35 bitrate= 781.3kbits/s dup=1 drop=155 speed=0.0382x
05.615 Started command progress : ffmpeg frame= 129 fps=0.9 q=28.0 size= 511kB time=00:00:05.39 bitrate= 775.1kbits/s dup=1 drop=156 speed=0.0383x
06.627 Started command progress : ffmpeg frame= 130 fps=0.9 q=28.0 size= 514kB time=00:00:05.42 bitrate= 776.8kbits/s dup=1 drop=157 speed=0.0382x
07.511 Started command progress : ffmpeg frame= 131 fps=0.9 q=28.0 size= 525kB time=00:00:05.46 bitrate= 786.6kbits/s dup=1 drop=158 speed=0.0383x
12.298 Started command progress : ffmpeg frame= 132 fps=0.9 q=28.0 size= 529kB time=00:00:05.48 bitrate= 789.4kbits/s dup=1 drop=159 speed=0.0382x
12.306 Started command progress : ffmpeg frame= 132 fps=0.9 q=28.0 size= 529kB time=00:00:05.48 bitrate= 789.4kbits/s dup=1 drop=159 speed=0.0371x
12.814 Started command progress : ffmpeg frame= 133 fps=0.9 q=28.0 size= 530kB time=00:00:05.48 bitrate= 792.1kbits/s dup=1 drop=160 speed=0.037x
13.584 Started command progress : ffmpeg frame= 134 fps=0.9 q=28.0 size= 533kB time=00:00:05.48 bitrate= 796.2kbits/s dup=1 drop=162 speed=0.0368x
18.744 Started command progress : ffmpeg frame= 135 fps=0.9 q=28.0 size= 547kB time=00:00:05.48 bitrate= 817.1kbits/s dup=1 drop=163 speed=0.0356x
19.776 Started command progress : ffmpeg frame= 136 fps=0.9 q=28.0 size= 551kB time=00:00:05.48 bitrate= 823.3kbits/s dup=1 drop=164 speed=0.0353x
20.554 Started command progress : ffmpeg frame= 137 fps=0.9 q=28.0 size= 553kB time=00:00:05.48 bitrate= 825.9kbits/s dup=1 drop=164 speed=0.0352x
21.113 Started command progress : ffmpeg frame= 138 fps=0.9 q=28.0 size= 556kB time=00:00:05.48 bitrate= 830.1kbits/s dup=1 drop=165 speed=0.035x
23.823 Started command progress : ffmpeg frame= 139 fps=0.9 q=28.0 size= 570kB time=00:00:05.48 bitrate= 850.8kbits/s dup=1 drop=165 speed=0.0344x
24.546 Started command progress : ffmpeg frame= 140 fps=0.9 q=28.0 size= 574kB time=00:00:05.48 bitrate= 857.3kbits/s dup=1 drop=165 speed=0.0343x
25.038 Started command progress : ffmpeg frame= 141 fps=0.9 q=28.0 size= 576kB time=00:00:05.48 bitrate= 860.0kbits/s dup=1 drop=165 speed=0.0342x
29.407 Started command progress : ffmpeg frame= 143 fps=0.9 q=28.0 size= 591kB time=00:00:05.48 bitrate= 882.6kbits/s dup=1 drop=166 speed=0.0333x
32.181 Started command progress : ffmpeg frame= 144 fps=0.9 q=28.0 size= 595kB time=00:00:05.48 bitrate= 888.4kbits/s dup=1 drop=166 speed=0.0327x
32.721 Started command progress : ffmpeg frame= 145 fps=0.9 q=28.0 size= 597kB time=00:00:05.48 bitrate= 891.0kbits/s dup=1 drop=166 speed=0.0326x
37.640 Started command progress : ffmpeg frame= 147 fps=0.8 q=28.0 size= 613kB time=00:00:05.48 bitrate= 915.5kbits/s dup=1 drop=167 speed=0.0317x
38.409 Started command progress : ffmpeg frame= 148 fps=0.9 q=28.0 size= 617kB time=00:00:05.48 bitrate= 922.0kbits/s dup=1 drop=167 speed=0.0315x
38.954 Started command progress : ffmpeg frame= 149 fps=0.9 q=28.0 size= 619kB time=00:00:05.48 bitrate= 924.8kbits/s dup=1 drop=167 speed=0.0314x
43.249 Started command progress : ffmpeg frame= 151 fps=0.8 q=28.0 size= 638kB time=00:00:05.48 bitrate= 952.7kbits/s dup=1 drop=168 speed=0.0307x
44.711 Started command progress : ffmpeg frame= 152 fps=0.8 q=28.0 size= 642kB time=00:00:05.48 bitrate= 959.6kbits/s dup=1 drop=168 speed=0.0304x
45.362 Started command progress : ffmpeg frame= 153 fps=0.8 q=28.0 size= 644kB time=00:00:05.48 bitrate= 962.3kbits/s dup=1 drop=168 speed=0.0303x
47.986 Started command progress : ffmpeg frame= 155 fps=0.8 q=28.0 size= 658kB time=00:00:05.48 bitrate= 983.4kbits/s dup=1 drop=169 speed=0.0299x
51.033 Started command progress : ffmpeg frame= 156 fps=0.8 q=28.0 size= 663kB time=00:00:05.48 bitrate= 989.6kbits/s dup=1 drop=169 speed=0.0294x
51.644 Started command progress : ffmpeg frame= 157 fps=0.8 q=28.0 size= 664kB time=00:00:05.48 bitrate= 992.4kbits/s dup=1 drop=169 speed=0.0293x
52.227 Started command progress : ffmpeg frame= 158 fps=0.8 q=28.0 size= 667kB time=00:00:05.48 bitrate= 996.2kbits/s dup=1 drop=170 speed=0.0292x
55.997 Started command progress : ffmpeg frame= 159 fps=0.8 q=28.0 size= 679kB time=00:00:05.48 bitrate=1014.6kbits/s dup=1 drop=170 speed=0.0286x
57.421 Started command progress : ffmpeg frame= 160 fps=0.8 q=28.0 size= 684kB time=00:00:05.48 bitrate=1022.2kbits/s dup=1 drop=170 speed=0.0284x
57.968 Started command progress : ffmpeg frame= 161 fps=0.8 q=28.0 size= 686kB time=00:00:05.48 bitrate=1025.0kbits/s dup=1 drop=170 speed=0.0284x
02.301 Started command progress : ffmpeg frame= 163 fps=0.8 q=28.0 size= 704kB time=00:00:05.48 bitrate=1051.4kbits/s dup=1 drop=171 speed=0.0277x
02.318 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
03.129 Started command progress : ffmpeg frame= 164 fps=0.8 q=28.0 size= 708kB time=00:00:05.48 bitrate=1058.1kbits/s dup=1 drop=171 speed=0.0276x
03.135 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
03.791 Started command progress : ffmpeg Last message repeated 2 times
03.804 Started command progress : ffmpeg frame= 165 fps=0.8 q=28.0 size= 710kB time=00:00:05.48 bitrate=1060.7kbits/s dup=1 drop=171 speed=0.0275x
03.818 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
10.434 Started command progress : ffmpeg Last message repeated 3 times
10.436 Started command progress : ffmpeg frame= 167 fps=0.8 q=28.0 size= 728kB time=00:00:05.48 bitrate=1087.9kbits/s dup=1 drop=172 speed=0.0266x
11.139 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
11.140 Started command progress : ffmpeg frame= 168 fps=0.8 q=28.0 size= 733kB time=00:00:05.48 bitrate=1094.8kbits/s dup=1 drop=172 speed=0.0265x
11.148 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
11.654 Started command progress : ffmpeg Last message repeated 1 times
11.655 Started command progress : ffmpeg frame= 169 fps=0.8 q=28.0 size= 735kB time=00:00:05.48 bitrate=1097.6kbits/s dup=1 drop=172 speed=0.0265x
11.660 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
13.730 Started command progress : ffmpeg Last message repeated 4 times
13.732 Started command progress : ffmpeg frame= 171 fps=0.8 q=28.0 size= 750kB time=00:00:05.48 bitrate=1119.6kbits/s dup=1 drop=173 speed=0.0262x
14.493 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
14.495 Started command progress : ffmpeg frame= 172 fps=0.8 q=28.0 size= 754kB time=00:00:05.48 bitrate=1125.7kbits/s dup=1 drop=173 speed=0.0261x
14.510 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
15.764 Started command progress : ffmpeg Last message repeated 1 times
15.768 Started command progress : ffmpeg frame= 173 fps=0.8 q=28.0 size= 756kB time=00:00:05.48 bitrate=1128.7kbits/s dup=1 drop=173 speed=0.026x
15.967 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
17.594 Started command progress : ffmpeg Last message repeated 4 times
17.600 Started command progress : ffmpeg frame= 175 fps=0.8 q=28.0 size= 769kB time=00:00:05.48 bitrate=1148.9kbits/s dup=1 drop=174 speed=0.0257x
22.264 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
22.270 Started command progress : ffmpeg frame= 176 fps=0.8 q=28.0 size= 773kB time=00:00:05.48 bitrate=1154.6kbits/s dup=1 drop=174 speed=0.0252x
22.273 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
22.794 Started command progress : ffmpeg Last message repeated 1 times
22.796 Started command progress : ffmpeg frame= 177 fps=0.8 q=28.0 size= 775kB time=00:00:05.48 bitrate=1157.0kbits/s dup=1 drop=174 speed=0.0251x
22.997 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
26.730 Started command progress : ffmpeg Last message repeated 3 times
26.732 Started command progress : ffmpeg frame= 179 fps=0.8 q=28.0 size= 792kB time=00:00:05.48 bitrate=1182.5kbits/s dup=1 drop=175 speed=0.0247x
26.736 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
27.345 Started command progress : ffmpeg Last message repeated 1 times
27.347 Started command progress : ffmpeg frame= 180 fps=0.8 q=28.0 size= 796kB time=00:00:05.48 bitrate=1188.9kbits/s dup=1 drop=175 speed=0.0246x
27.811 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
28.017 Started command progress : ffmpeg Last message repeated 2 times
28.019 Started command progress : ffmpeg frame= 181 fps=0.8 q=28.0 size= 798kB time=00:00:05.48 bitrate=1192.1kbits/s dup=1 drop=175 speed=0.0245x
28.027 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
31.612 Started command progress : ffmpeg Last message repeated 2 times
31.617 Started command progress : ffmpeg frame= 183 fps=0.8 q=28.0 size= 820kB time=00:00:05.48 bitrate=1224.5kbits/s dup=1 drop=176 speed=0.0242x
31.620 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
32.251 Started command progress : ffmpeg Last message repeated 1 times
32.254 Started command progress : ffmpeg frame= 184 fps=0.8 q=28.0 size= 827kB time=00:00:05.48 bitrate=1234.7kbits/s dup=1 drop=176 speed=0.0241x
32.654 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
32.828 Started command progress : ffmpeg Last message repeated 2 times
32.833 Started command progress : ffmpeg frame= 185 fps=0.8 q=28.0 size= 828kB time=00:00:05.48 bitrate=1237.4kbits/s dup=1 drop=176 speed=0.024x
33.093 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
38.362 Started command progress : ffmpeg Last message repeated 2 times
38.363 Started command progress : ffmpeg frame= 187 fps=0.8 q=28.0 size= 833kB time=00:00:05.50 bitrate=1240.0kbits/s dup=1 drop=177 speed=0.0235x
38.370 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
39.216 Started command progress : ffmpeg Last message repeated 1 times
39.217 Started command progress : ffmpeg frame= 188 fps=0.8 q=28.0 size= 833kB time=00:00:05.54 bitrate=1230.7kbits/s dup=1 drop=177 speed=0.0236x
39.744 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
39.747 Started command progress : ffmpeg frame= 189 fps=0.8 q=28.0 size= 833kB time=00:00:05.58 bitrate=1221.5kbits/s dup=1 drop=177 speed=0.0238x
39.748 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
40.354 Started command progress : ffmpeg Last message repeated 4 times
40.355 Started command progress : ffmpeg frame= 191 fps=0.8 q=28.0 size= 833kB time=00:00:05.67 bitrate=1203.6kbits/s dup=1 drop=178 speed=0.0241x
41.031 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
41.037 Started command progress : ffmpeg frame= 192 fps=0.8 q=28.0 size= 833kB time=00:00:05.71 bitrate=1194.8kbits/s dup=1 drop=178 speed=0.0242x
41.046 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
41.557 Started command progress : ffmpeg Last message repeated 1 times
41.561 Started command progress : ffmpeg frame= 193 fps=0.8 q=28.0 size= 833kB time=00:00:05.75 bitrate=1186.1kbits/s dup=1 drop=178 speed=0.0243x
41.744 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
42.421 Started command progress : ffmpeg Last message repeated 4 times
42.423 Started command progress : ffmpeg frame= 195 fps=0.8 q=28.0 size= 833kB time=00:00:05.83 bitrate=1169.2kbits/s dup=1 drop=179 speed=0.0245x
47.015 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
47.017 Started command progress : ffmpeg frame= 196 fps=0.8 q=28.0 size= 833kB time=00:00:05.88 bitrate=1160.9kbits/s dup=1 drop=179 speed=0.0243x
47.019 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
47.517 Started command progress : ffmpeg Last message repeated 2 times
47.524 Started command progress : ffmpeg frame= 197 fps=0.8 q=28.0 size= 833kB time=00:00:05.92 bitrate=1152.7kbits/s dup=1 drop=179 speed=0.0244x
47.524 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
48.946 Started command progress : ffmpeg Last message repeated 2 times
48.959 Started command progress : ffmpeg frame= 199 fps=0.8 q=28.0 size= 833kB time=00:00:06.00 bitrate=1136.7kbits/s dup=1 drop=180 speed=0.0246x
48.961 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
49.797 Started command progress : ffmpeg Last message repeated 1 times
49.798 Started command progress : ffmpeg frame= 200 fps=0.8 q=28.0 size= 833kB time=00:00:06.04 bitrate=1128.9kbits/s dup=1 drop=180 speed=0.0247x
49.803 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
50.546 Started command progress : ffmpeg Last message repeated 4 times
50.547 Started command progress : ffmpeg frame= 201 fps=0.8 q=28.0 size= 833kB time=00:00:06.08 bitrate=1121.1kbits/s dup=1 drop=180 speed=0.0248x
53.010 Started command progress : ffmpeg frame= 204 fps=0.8 q=28.0 size= 833kB time=00:00:06.21 bitrate=1098.6kbits/s dup=1 drop=181 speed=0.0251x
53.713 Started command progress : ffmpeg frame= 205 fps=0.8 q=28.0 size= 833kB time=00:00:06.25 bitrate=1091.2kbits/s dup=1 drop=181 speed=0.0252x
53.722 Started command progress : ffmpeg frame= 205 fps=0.8 q=28.0 size= 833kB time=00:00:06.25 bitrate=1091.2kbits/s dup=1 drop=181 speed=0.0251x
50.706 Started command progress : ffmpeg frame= 205 fps=0.7 q=-1.0 Lsize= 965kB time=00:00:08.46 bitrate= 933.2kbits/s dup=1 drop=181 speed=0.0277x
50.720 Started command progress : ffmpeg video:872kB audio:87kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.621844%
50.720 Started command progress : ffmpeg [libx264 @ 0xf35ff400] frame I:1 Avg QP:19.09 size: 40991
50.725 Started command progress : ffmpeg [libx264 @ 0xf35ff400] frame P:51 Avg QP:18.16 size: 10789
50.726 Started command progress : ffmpeg [libx264 @ 0xf35ff400] frame B:153 Avg QP:19.57 size: 1966
50.729 Started command progress : ffmpeg [libx264 @ 0xf35ff400] consecutive B-frames: 0.5% 0.0% 0.0% 99.5%
50.737 Started command progress : ffmpeg [libx264 @ 0xf35ff400] mb I I16..4: 31.5% 61.8% 6.7%
50.742 Started command progress : ffmpeg [libx264 @ 0xf35ff400] mb P I16..4: 2.3% 2.0% 0.1% P16..4: 31.9% 5.7% 2.3% 0.0% 0.0% skip:55.6%
50.750 Started command progress : ffmpeg [libx264 @ 0xf35ff400] mb B I16..4: 0.1% 0.0% 0.0% B16..8: 18.2% 0.3% 0.0% direct: 1.0% skip:80.3% L0:46.2% L1:53.2% BI: 0.6%
50.753 Started command progress : ffmpeg [libx264 @ 0xf35ff400] 8x8 transform intra:49.4% inter:92.4%
50.754 Started command progress : ffmpeg [libx264 @ 0xf35ff400] coded y,uvDC,uvAC intra: 19.1% 26.6% 3.8% inter: 2.5% 7.1% 0.0%
50.756 Started command progress : ffmpeg [libx264 @ 0xf35ff400] i16 v,h,dc,p: 41% 15% 5% 39%
50.764 Started command progress : ffmpeg [libx264 @ 0xf35ff400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 14% 32% 3% 5% 5% 4% 4% 3%
50.767 Started command progress : ffmpeg [libx264 @ 0xf35ff400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 20% 25% 2% 6% 4% 4% 2% 1%
50.768 Started command progress : ffmpeg [libx264 @ 0xf35ff400] i8c dc,h,v,p: 56% 20% 20% 4%
50.772 Started command progress : ffmpeg [libx264 @ 0xf35ff400] Weighted P-Frames: Y:0.0% UV:0.0%
50.774 Started command progress : ffmpeg [libx264 @ 0xf35ff400] ref P L0: 54.0% 5.5% 29.8% 10.6%
50.776 Started command progress : ffmpeg [libx264 @ 0xf35ff400] ref B L0: 76.8% 18.5% 4.7%
50.777 Started command progress : ffmpeg [libx264 @ 0xf35ff400] ref B L1: 96.2% 3.8%
50.779 Started command progress : ffmpeg [libx264 @ 0xf35ff400] kb/s:834.67
50.898 Started command progress : ffmpeg [aac @ 0xf35ffc00] Qavg: 1539.341
50.960 SUCCESS with output : ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/temp1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.25.100
Duration: 00:00:05.55, start: 0.021333, bitrate: 191 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 360x360 [SAR 16:9 DAR 16:9], 113 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 70 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/temp2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.25.100
Duration: 00:00:06.73, start: 0.021333, bitrate: 170 kb/s
Stream #1:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 360x360 [SAR 9:16 DAR 9:16], 90 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 70 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/temp3.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.25.100
Duration: 00:00:08.50, start: 0.021333, bitrate: 177 kb/s
Stream #2:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 360x360 [SAR 9:16 DAR 9:16], 97 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #2:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 70 kb/s (default)
Metadata:
handler_name : SoundHandler
[Parsed_amerge_7 @ 0xf38a7780] No channel layout for input 1
[Parsed_amerge_7 @ 0xf38a7780] Input channel layouts overlap: output layout will be determined by the number of distinct input channels
[swscaler @ 0xf35f1000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0xf35e6000] deprecated pixel format used, make sure you did set range correctly
No pixel format specified, yuvj420p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0xf35ff400] using SAR=16/9
[libx264 @ 0xf35ff400] using cpu capabilities: none!
[libx264 @ 0xf3
50.966 Finished command : ffmpeg [Ljava.lang.String;@7c54447
您正在使用 amerge 将 3 个单声道输入合并为一个 3 通道流。 ffmpeg 将其解释为 2.1 声道布局 (FL+FR+LFE)。 -ac 2 选项在缩混为立体声时忽略低频效果，因此第三个通道被丢弃。
一种方法是使用声像过滤器手动执行缩混。您没有指定哪些输入通道应该进入哪些输出通道，所以这个例子只是将它们全部放在每个输出通道中。
ffmpeg -i input0 -i input1 -i input2 -filter_complex \
"[0:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=green[a]; \
[1:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=red[b]; \
[2:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=blue[c]; \
[b][c]hstack=inputs=2,scale=iw/2:-2[bottom]; \
[a][bottom]vstack=inputs=2,scale=ih*2:-1,format=yuv420p[video]; \
[0:a][1:a][2:a]amerge=inputs=3,pan=stereo|FL<c0+c1+c2|FR<c0+c1+c2[audio]" \
-map "[video]" -map "[audio]" -movflags +faststart output.mp4
ffmpeg -layouts 输出在处理音频通道时很有用。
与问题无关：我假设你想要 yuv420p 输出而不是 yuvj420p 所以我添加了格式过滤器并添加了 -movflags +faststart 因为我猜你将要展示通过渐进式下载视频。
我想将 3 个视频文件合并为一个。我的问题是我只能听到 2 的音频。其中一个静音了。
我执行的命令将依次显示 3 部电影，并且应该播放整个 3 部电影的音频。
这是我的查询：
complexCommand = new String[]{"-i", tempPath1, "-i", tempPath2,"-i", tempPath3,"-filter_complex",
"[0:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=green[a];" +
"[1:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=red[b];" +
"[2:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=blue[c];" +
"[b][c]hstack=inputs=2,scale=iw/2:-2[bottom];" +
"[a][bottom]vstack=inputs=2,scale=ih*2:-2[video];" +
"[0:a][1:a]amerge=inputs=2[audio];" + // take audio first movie, take audio second movie and merge with 2 inputs
"[audio][2:a]amerge=inputs=2[audio1]",
"-map", // map of the video
"[video]",
"-map", // map of the audio
"[audio1]",
"-ac",
"2", // number of chanels
outputFilePath};
这个命令的结果是我只能听到电影a和b。 非常感谢:)
编辑
我也试过这个：
complexCommand = new String[]{"-i", tempPath1, "-i", tempPath2,"-i", tempPath3,"-filter_complex",
"[0:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=green[a];" +
"[1:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=red[b];" +
"[2:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=blue[c];" +
"[b][c]hstack=inputs=2,scale=iw/2:-2[bottom];" +
"[a][bottom]vstack=inputs=2,scale=ih*2:-2[video];" +
"[0:a][1:a][2:a]amerge=inputs=3[audio]",
"-map", // map of the video
"[video]",
"-map", // map of the audio
"[audio]",
"-ac",
"2", // number of chanels
outputFilePath};
另一个编辑
又查了下，发现他并没有合并上次的电影音频。另外，如果我有 4 部电影，它会合并 3 部电影，你听不到最后一部电影。
日志（太长 - 这是它的后半部分）：
10.417 Started command progress : ffmpeg frame= 102 fps=1.2 q=28.0 size= 344kB time=00:00:04.24 bitrate= 662.5kbits/s dup=1 drop=122 speed=0.0495x
16.670 Started command progress : ffmpeg frame= 103 fps=1.1 q=28.0 size= 361kB time=00:00:04.29 bitrate= 689.2kbits/s dup=1 drop=123 speed=0.0466x
17.329 Started command progress : ffmpeg frame= 104 fps=1.1 q=28.0 size= 366kB time=00:00:04.33 bitrate= 691.2kbits/s dup=1 drop=124 speed=0.0467x
18.067 Started command progress : ffmpeg frame= 105 fps=1.1 q=28.0 size= 368kB time=00:00:04.37 bitrate= 688.3kbits/s dup=1 drop=125 speed=0.0468x
18.658 Started command progress : ffmpeg frame= 106 fps=1.1 q=28.0 size= 371kB time=00:00:04.41 bitrate= 687.5kbits/s dup=1 drop=127 speed=0.0469x
19.275 Started command progress : ffmpeg frame= 107 fps=1.1 q=28.0 size= 384kB time=00:00:04.46 bitrate= 705.0kbits/s dup=1 drop=128 speed=0.0471x
20.951 Started command progress : ffmpeg frame= 108 fps=1.1 q=28.0 size= 388kB time=00:00:04.50 bitrate= 706.2kbits/s dup=1 drop=129 speed=0.0467x
21.619 Started command progress : ffmpeg frame= 109 fps=1.1 q=28.0 size= 390kB time=00:00:04.52 bitrate= 706.2kbits/s dup=1 drop=130 speed=0.0466x
22.170 Started command progress : ffmpeg frame= 110 fps=1.1 q=28.0 size= 393kB time=00:00:04.56 bitrate= 704.5kbits/s dup=1 drop=132 speed=0.0468x
25.697 Started command progress : ffmpeg frame= 111 fps=1.1 q=28.0 size= 408kB time=00:00:04.63 bitrate= 720.8kbits/s dup=1 drop=133 speed=0.0458x
30.467 Started command progress : ffmpeg frame= 112 fps=1.1 q=28.0 size= 413kB time=00:00:04.67 bitrate= 723.8kbits/s dup=1 drop=134 speed=0.0441x
31.884 Started command progress : ffmpeg frame= 113 fps=1.1 q=28.0 size= 415kB time=00:00:04.69 bitrate= 723.9kbits/s dup=1 drop=135 speed=0.0437x
32.360 Started command progress : ffmpeg frame= 113 fps=1.0 q=28.0 size= 415kB time=00:00:04.73 bitrate= 717.4kbits/s dup=1 drop=136 speed=0.0439x
37.274 Started command progress : ffmpeg frame= 115 fps=1.0 q=28.0 size= 435kB time=00:00:04.80 bitrate= 741.3kbits/s dup=1 drop=138 speed=0.0426x
38.060 Started command progress : ffmpeg frame= 116 fps=1.0 q=28.0 size= 439kB time=00:00:04.82 bitrate= 746.1kbits/s dup=1 drop=139 speed=0.0425x
38.779 Started command progress : ffmpeg frame= 117 fps=1.0 q=28.0 size= 441kB time=00:00:04.86 bitrate= 743.2kbits/s dup=1 drop=140 speed=0.0426x
39.463 Started command progress : ffmpeg frame= 118 fps=1.0 q=28.0 size= 445kB time=00:00:04.90 bitrate= 742.3kbits/s dup=1 drop=142 speed=0.0427x
40.074 Started command progress : ffmpeg frame= 119 fps=1.0 q=28.0 size= 458kB time=00:00:04.97 bitrate= 753.8kbits/s dup=1 drop=143 speed=0.043x
42.906 Started command progress : ffmpeg frame= 120 fps=1.0 q=28.0 size= 462kB time=00:00:04.99 bitrate= 758.1kbits/s dup=1 drop=144 speed=0.0422x
43.884 Started command progress : ffmpeg frame= 121 fps=1.0 q=28.0 size= 464kB time=00:00:05.03 bitrate= 754.6kbits/s dup=1 drop=145 speed=0.0422x
44.378 Started command progress : ffmpeg frame= 121 fps=1.0 q=28.0 size= 464kB time=00:00:05.07 bitrate= 748.2kbits/s dup=1 drop=146 speed=0.0424x
52.351 Started command progress : ffmpeg frame= 123 fps=1.0 q=28.0 size= 481kB time=00:00:05.12 bitrate= 768.5kbits/s dup=1 drop=148 speed=0.0401x
55.804 Started command progress : ffmpeg frame= 124 fps=0.9 q=28.0 size= 485kB time=00:00:05.16 bitrate= 768.6kbits/s dup=1 drop=149 speed=0.0394x
56.404 Started command progress : ffmpeg frame= 124 fps=0.9 q=28.0 size= 485kB time=00:00:05.18 bitrate= 765.4kbits/s dup=1 drop=149 speed=0.0393x
57.011 Started command progress : ffmpeg frame= 125 fps=0.9 q=28.0 size= 487kB time=00:00:05.20 bitrate= 765.4kbits/s dup=1 drop=150 speed=0.0393x
57.549 Started command progress : ffmpeg frame= 125 fps=0.9 q=28.0 size= 487kB time=00:00:05.25 bitrate= 759.2kbits/s dup=1 drop=151 speed=0.0395x
58.072 Started command progress : ffmpeg frame= 126 fps=0.9 q=28.0 size= 489kB time=00:00:05.27 bitrate= 760.4kbits/s dup=1 drop=152 speed=0.0395x
03.052 Started command progress : ffmpeg frame= 127 fps=0.9 q=28.0 size= 504kB time=00:00:05.29 bitrate= 779.9kbits/s dup=1 drop=153 speed=0.0382x
04.000 Started command progress : ffmpeg frame= 128 fps=0.9 q=28.0 size= 509kB time=00:00:05.33 bitrate= 781.5kbits/s dup=1 drop=154 speed=0.0383x
04.841 Started command progress : ffmpeg frame= 129 fps=0.9 q=28.0 size= 511kB time=00:00:05.35 bitrate= 781.3kbits/s dup=1 drop=155 speed=0.0382x
05.615 Started command progress : ffmpeg frame= 129 fps=0.9 q=28.0 size= 511kB time=00:00:05.39 bitrate= 775.1kbits/s dup=1 drop=156 speed=0.0383x
06.627 Started command progress : ffmpeg frame= 130 fps=0.9 q=28.0 size= 514kB time=00:00:05.42 bitrate= 776.8kbits/s dup=1 drop=157 speed=0.0382x
07.511 Started command progress : ffmpeg frame= 131 fps=0.9 q=28.0 size= 525kB time=00:00:05.46 bitrate= 786.6kbits/s dup=1 drop=158 speed=0.0383x
12.298 Started command progress : ffmpeg frame= 132 fps=0.9 q=28.0 size= 529kB time=00:00:05.48 bitrate= 789.4kbits/s dup=1 drop=159 speed=0.0382x
12.306 Started command progress : ffmpeg frame= 132 fps=0.9 q=28.0 size= 529kB time=00:00:05.48 bitrate= 789.4kbits/s dup=1 drop=159 speed=0.0371x
12.814 Started command progress : ffmpeg frame= 133 fps=0.9 q=28.0 size= 530kB time=00:00:05.48 bitrate= 792.1kbits/s dup=1 drop=160 speed=0.037x
13.584 Started command progress : ffmpeg frame= 134 fps=0.9 q=28.0 size= 533kB time=00:00:05.48 bitrate= 796.2kbits/s dup=1 drop=162 speed=0.0368x
18.744 Started command progress : ffmpeg frame= 135 fps=0.9 q=28.0 size= 547kB time=00:00:05.48 bitrate= 817.1kbits/s dup=1 drop=163 speed=0.0356x
19.776 Started command progress : ffmpeg frame= 136 fps=0.9 q=28.0 size= 551kB time=00:00:05.48 bitrate= 823.3kbits/s dup=1 drop=164 speed=0.0353x
20.554 Started command progress : ffmpeg frame= 137 fps=0.9 q=28.0 size= 553kB time=00:00:05.48 bitrate= 825.9kbits/s dup=1 drop=164 speed=0.0352x
21.113 Started command progress : ffmpeg frame= 138 fps=0.9 q=28.0 size= 556kB time=00:00:05.48 bitrate= 830.1kbits/s dup=1 drop=165 speed=0.035x
23.823 Started command progress : ffmpeg frame= 139 fps=0.9 q=28.0 size= 570kB time=00:00:05.48 bitrate= 850.8kbits/s dup=1 drop=165 speed=0.0344x
24.546 Started command progress : ffmpeg frame= 140 fps=0.9 q=28.0 size= 574kB time=00:00:05.48 bitrate= 857.3kbits/s dup=1 drop=165 speed=0.0343x
25.038 Started command progress : ffmpeg frame= 141 fps=0.9 q=28.0 size= 576kB time=00:00:05.48 bitrate= 860.0kbits/s dup=1 drop=165 speed=0.0342x
29.407 Started command progress : ffmpeg frame= 143 fps=0.9 q=28.0 size= 591kB time=00:00:05.48 bitrate= 882.6kbits/s dup=1 drop=166 speed=0.0333x
32.181 Started command progress : ffmpeg frame= 144 fps=0.9 q=28.0 size= 595kB time=00:00:05.48 bitrate= 888.4kbits/s dup=1 drop=166 speed=0.0327x
32.721 Started command progress : ffmpeg frame= 145 fps=0.9 q=28.0 size= 597kB time=00:00:05.48 bitrate= 891.0kbits/s dup=1 drop=166 speed=0.0326x
37.640 Started command progress : ffmpeg frame= 147 fps=0.8 q=28.0 size= 613kB time=00:00:05.48 bitrate= 915.5kbits/s dup=1 drop=167 speed=0.0317x
38.409 Started command progress : ffmpeg frame= 148 fps=0.9 q=28.0 size= 617kB time=00:00:05.48 bitrate= 922.0kbits/s dup=1 drop=167 speed=0.0315x
38.954 Started command progress : ffmpeg frame= 149 fps=0.9 q=28.0 size= 619kB time=00:00:05.48 bitrate= 924.8kbits/s dup=1 drop=167 speed=0.0314x
43.249 Started command progress : ffmpeg frame= 151 fps=0.8 q=28.0 size= 638kB time=00:00:05.48 bitrate= 952.7kbits/s dup=1 drop=168 speed=0.0307x
44.711 Started command progress : ffmpeg frame= 152 fps=0.8 q=28.0 size= 642kB time=00:00:05.48 bitrate= 959.6kbits/s dup=1 drop=168 speed=0.0304x
45.362 Started command progress : ffmpeg frame= 153 fps=0.8 q=28.0 size= 644kB time=00:00:05.48 bitrate= 962.3kbits/s dup=1 drop=168 speed=0.0303x
47.986 Started command progress : ffmpeg frame= 155 fps=0.8 q=28.0 size= 658kB time=00:00:05.48 bitrate= 983.4kbits/s dup=1 drop=169 speed=0.0299x
51.033 Started command progress : ffmpeg frame= 156 fps=0.8 q=28.0 size= 663kB time=00:00:05.48 bitrate= 989.6kbits/s dup=1 drop=169 speed=0.0294x
51.644 Started command progress : ffmpeg frame= 157 fps=0.8 q=28.0 size= 664kB time=00:00:05.48 bitrate= 992.4kbits/s dup=1 drop=169 speed=0.0293x
52.227 Started command progress : ffmpeg frame= 158 fps=0.8 q=28.0 size= 667kB time=00:00:05.48 bitrate= 996.2kbits/s dup=1 drop=170 speed=0.0292x
55.997 Started command progress : ffmpeg frame= 159 fps=0.8 q=28.0 size= 679kB time=00:00:05.48 bitrate=1014.6kbits/s dup=1 drop=170 speed=0.0286x
57.421 Started command progress : ffmpeg frame= 160 fps=0.8 q=28.0 size= 684kB time=00:00:05.48 bitrate=1022.2kbits/s dup=1 drop=170 speed=0.0284x
57.968 Started command progress : ffmpeg frame= 161 fps=0.8 q=28.0 size= 686kB time=00:00:05.48 bitrate=1025.0kbits/s dup=1 drop=170 speed=0.0284x
02.301 Started command progress : ffmpeg frame= 163 fps=0.8 q=28.0 size= 704kB time=00:00:05.48 bitrate=1051.4kbits/s dup=1 drop=171 speed=0.0277x
02.318 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
03.129 Started command progress : ffmpeg frame= 164 fps=0.8 q=28.0 size= 708kB time=00:00:05.48 bitrate=1058.1kbits/s dup=1 drop=171 speed=0.0276x
03.135 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
03.791 Started command progress : ffmpeg Last message repeated 2 times
03.804 Started command progress : ffmpeg frame= 165 fps=0.8 q=28.0 size= 710kB time=00:00:05.48 bitrate=1060.7kbits/s dup=1 drop=171 speed=0.0275x
03.818 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
10.434 Started command progress : ffmpeg Last message repeated 3 times
10.436 Started command progress : ffmpeg frame= 167 fps=0.8 q=28.0 size= 728kB time=00:00:05.48 bitrate=1087.9kbits/s dup=1 drop=172 speed=0.0266x
11.139 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
11.140 Started command progress : ffmpeg frame= 168 fps=0.8 q=28.0 size= 733kB time=00:00:05.48 bitrate=1094.8kbits/s dup=1 drop=172 speed=0.0265x
11.148 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
11.654 Started command progress : ffmpeg Last message repeated 1 times
11.655 Started command progress : ffmpeg frame= 169 fps=0.8 q=28.0 size= 735kB time=00:00:05.48 bitrate=1097.6kbits/s dup=1 drop=172 speed=0.0265x
11.660 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
13.730 Started command progress : ffmpeg Last message repeated 4 times
13.732 Started command progress : ffmpeg frame= 171 fps=0.8 q=28.0 size= 750kB time=00:00:05.48 bitrate=1119.6kbits/s dup=1 drop=173 speed=0.0262x
14.493 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
14.495 Started command progress : ffmpeg frame= 172 fps=0.8 q=28.0 size= 754kB time=00:00:05.48 bitrate=1125.7kbits/s dup=1 drop=173 speed=0.0261x
14.510 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
15.764 Started command progress : ffmpeg Last message repeated 1 times
15.768 Started command progress : ffmpeg frame= 173 fps=0.8 q=28.0 size= 756kB time=00:00:05.48 bitrate=1128.7kbits/s dup=1 drop=173 speed=0.026x
15.967 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
17.594 Started command progress : ffmpeg Last message repeated 4 times
17.600 Started command progress : ffmpeg frame= 175 fps=0.8 q=28.0 size= 769kB time=00:00:05.48 bitrate=1148.9kbits/s dup=1 drop=174 speed=0.0257x
22.264 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
22.270 Started command progress : ffmpeg frame= 176 fps=0.8 q=28.0 size= 773kB time=00:00:05.48 bitrate=1154.6kbits/s dup=1 drop=174 speed=0.0252x
22.273 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
22.794 Started command progress : ffmpeg Last message repeated 1 times
22.796 Started command progress : ffmpeg frame= 177 fps=0.8 q=28.0 size= 775kB time=00:00:05.48 bitrate=1157.0kbits/s dup=1 drop=174 speed=0.0251x
22.997 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
26.730 Started command progress : ffmpeg Last message repeated 3 times
26.732 Started command progress : ffmpeg frame= 179 fps=0.8 q=28.0 size= 792kB time=00:00:05.48 bitrate=1182.5kbits/s dup=1 drop=175 speed=0.0247x
26.736 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
27.345 Started command progress : ffmpeg Last message repeated 1 times
27.347 Started command progress : ffmpeg frame= 180 fps=0.8 q=28.0 size= 796kB time=00:00:05.48 bitrate=1188.9kbits/s dup=1 drop=175 speed=0.0246x
27.811 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
28.017 Started command progress : ffmpeg Last message repeated 2 times
28.019 Started command progress : ffmpeg frame= 181 fps=0.8 q=28.0 size= 798kB time=00:00:05.48 bitrate=1192.1kbits/s dup=1 drop=175 speed=0.0245x
28.027 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
31.612 Started command progress : ffmpeg Last message repeated 2 times
31.617 Started command progress : ffmpeg frame= 183 fps=0.8 q=28.0 size= 820kB time=00:00:05.48 bitrate=1224.5kbits/s dup=1 drop=176 speed=0.0242x
31.620 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
32.251 Started command progress : ffmpeg Last message repeated 1 times
32.254 Started command progress : ffmpeg frame= 184 fps=0.8 q=28.0 size= 827kB time=00:00:05.48 bitrate=1234.7kbits/s dup=1 drop=176 speed=0.0241x
32.654 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
32.828 Started command progress : ffmpeg Last message repeated 2 times
32.833 Started command progress : ffmpeg frame= 185 fps=0.8 q=28.0 size= 828kB time=00:00:05.48 bitrate=1237.4kbits/s dup=1 drop=176 speed=0.024x
33.093 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
38.362 Started command progress : ffmpeg Last message repeated 2 times
38.363 Started command progress : ffmpeg frame= 187 fps=0.8 q=28.0 size= 833kB time=00:00:05.50 bitrate=1240.0kbits/s dup=1 drop=177 speed=0.0235x
38.370 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
39.216 Started command progress : ffmpeg Last message repeated 1 times
39.217 Started command progress : ffmpeg frame= 188 fps=0.8 q=28.0 size= 833kB time=00:00:05.54 bitrate=1230.7kbits/s dup=1 drop=177 speed=0.0236x
39.744 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
39.747 Started command progress : ffmpeg frame= 189 fps=0.8 q=28.0 size= 833kB time=00:00:05.58 bitrate=1221.5kbits/s dup=1 drop=177 speed=0.0238x
39.748 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
40.354 Started command progress : ffmpeg Last message repeated 4 times
40.355 Started command progress : ffmpeg frame= 191 fps=0.8 q=28.0 size= 833kB time=00:00:05.67 bitrate=1203.6kbits/s dup=1 drop=178 speed=0.0241x
41.031 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
41.037 Started command progress : ffmpeg frame= 192 fps=0.8 q=28.0 size= 833kB time=00:00:05.71 bitrate=1194.8kbits/s dup=1 drop=178 speed=0.0242x
41.046 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
41.557 Started command progress : ffmpeg Last message repeated 1 times
41.561 Started command progress : ffmpeg frame= 193 fps=0.8 q=28.0 size= 833kB time=00:00:05.75 bitrate=1186.1kbits/s dup=1 drop=178 speed=0.0243x
41.744 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
42.421 Started command progress : ffmpeg Last message repeated 4 times
42.423 Started command progress : ffmpeg frame= 195 fps=0.8 q=28.0 size= 833kB time=00:00:05.83 bitrate=1169.2kbits/s dup=1 drop=179 speed=0.0245x
47.015 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
47.017 Started command progress : ffmpeg frame= 196 fps=0.8 q=28.0 size= 833kB time=00:00:05.88 bitrate=1160.9kbits/s dup=1 drop=179 speed=0.0243x
47.019 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
47.517 Started command progress : ffmpeg Last message repeated 2 times
47.524 Started command progress : ffmpeg frame= 197 fps=0.8 q=28.0 size= 833kB time=00:00:05.92 bitrate=1152.7kbits/s dup=1 drop=179 speed=0.0244x
47.524 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
48.946 Started command progress : ffmpeg Last message repeated 2 times
48.959 Started command progress : ffmpeg frame= 199 fps=0.8 q=28.0 size= 833kB time=00:00:06.00 bitrate=1136.7kbits/s dup=1 drop=180 speed=0.0246x
48.961 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
49.797 Started command progress : ffmpeg Last message repeated 1 times
49.798 Started command progress : ffmpeg frame= 200 fps=0.8 q=28.0 size= 833kB time=00:00:06.04 bitrate=1128.9kbits/s dup=1 drop=180 speed=0.0247x
49.803 Started command progress : ffmpeg Error while decoding stream #2:1: Out of memory
50.546 Started command progress : ffmpeg Last message repeated 4 times
50.547 Started command progress : ffmpeg frame= 201 fps=0.8 q=28.0 size= 833kB time=00:00:06.08 bitrate=1121.1kbits/s dup=1 drop=180 speed=0.0248x
53.010 Started command progress : ffmpeg frame= 204 fps=0.8 q=28.0 size= 833kB time=00:00:06.21 bitrate=1098.6kbits/s dup=1 drop=181 speed=0.0251x
53.713 Started command progress : ffmpeg frame= 205 fps=0.8 q=28.0 size= 833kB time=00:00:06.25 bitrate=1091.2kbits/s dup=1 drop=181 speed=0.0252x
53.722 Started command progress : ffmpeg frame= 205 fps=0.8 q=28.0 size= 833kB time=00:00:06.25 bitrate=1091.2kbits/s dup=1 drop=181 speed=0.0251x
50.706 Started command progress : ffmpeg frame= 205 fps=0.7 q=-1.0 Lsize= 965kB time=00:00:08.46 bitrate= 933.2kbits/s dup=1 drop=181 speed=0.0277x
50.720 Started command progress : ffmpeg video:872kB audio:87kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.621844%
50.720 Started command progress : ffmpeg [libx264 @ 0xf35ff400] frame I:1 Avg QP:19.09 size: 40991
50.725 Started command progress : ffmpeg [libx264 @ 0xf35ff400] frame P:51 Avg QP:18.16 size: 10789
50.726 Started command progress : ffmpeg [libx264 @ 0xf35ff400] frame B:153 Avg QP:19.57 size: 1966
50.729 Started command progress : ffmpeg [libx264 @ 0xf35ff400] consecutive B-frames: 0.5% 0.0% 0.0% 99.5%
50.737 Started command progress : ffmpeg [libx264 @ 0xf35ff400] mb I I16..4: 31.5% 61.8% 6.7%
50.742 Started command progress : ffmpeg [libx264 @ 0xf35ff400] mb P I16..4: 2.3% 2.0% 0.1% P16..4: 31.9% 5.7% 2.3% 0.0% 0.0% skip:55.6%
50.750 Started command progress : ffmpeg [libx264 @ 0xf35ff400] mb B I16..4: 0.1% 0.0% 0.0% B16..8: 18.2% 0.3% 0.0% direct: 1.0% skip:80.3% L0:46.2% L1:53.2% BI: 0.6%
50.753 Started command progress : ffmpeg [libx264 @ 0xf35ff400] 8x8 transform intra:49.4% inter:92.4%
50.754 Started command progress : ffmpeg [libx264 @ 0xf35ff400] coded y,uvDC,uvAC intra: 19.1% 26.6% 3.8% inter: 2.5% 7.1% 0.0%
50.756 Started command progress : ffmpeg [libx264 @ 0xf35ff400] i16 v,h,dc,p: 41% 15% 5% 39%
50.764 Started command progress : ffmpeg [libx264 @ 0xf35ff400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 14% 32% 3% 5% 5% 4% 4% 3%
50.767 Started command progress : ffmpeg [libx264 @ 0xf35ff400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 20% 25% 2% 6% 4% 4% 2% 1%
50.768 Started command progress : ffmpeg [libx264 @ 0xf35ff400] i8c dc,h,v,p: 56% 20% 20% 4%
50.772 Started command progress : ffmpeg [libx264 @ 0xf35ff400] Weighted P-Frames: Y:0.0% UV:0.0%
50.774 Started command progress : ffmpeg [libx264 @ 0xf35ff400] ref P L0: 54.0% 5.5% 29.8% 10.6%
50.776 Started command progress : ffmpeg [libx264 @ 0xf35ff400] ref B L0: 76.8% 18.5% 4.7%
50.777 Started command progress : ffmpeg [libx264 @ 0xf35ff400] ref B L1: 96.2% 3.8%
50.779 Started command progress : ffmpeg [libx264 @ 0xf35ff400] kb/s:834.67
50.898 Started command progress : ffmpeg [aac @ 0xf35ffc00] Qavg: 1539.341
50.960 SUCCESS with output : ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/temp1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.25.100
Duration: 00:00:05.55, start: 0.021333, bitrate: 191 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 360x360 [SAR 16:9 DAR 16:9], 113 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 70 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/temp2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.25.100
Duration: 00:00:06.73, start: 0.021333, bitrate: 170 kb/s
Stream #1:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 360x360 [SAR 9:16 DAR 9:16], 90 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 70 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/temp3.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.25.100
Duration: 00:00:08.50, start: 0.021333, bitrate: 177 kb/s
Stream #2:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 360x360 [SAR 9:16 DAR 9:16], 97 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #2:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 70 kb/s (default)
Metadata:
handler_name : SoundHandler
[Parsed_amerge_7 @ 0xf38a7780] No channel layout for input 1
[Parsed_amerge_7 @ 0xf38a7780] Input channel layouts overlap: output layout will be determined by the number of distinct input channels
[swscaler @ 0xf35f1000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0xf35e6000] deprecated pixel format used, make sure you did set range correctly
No pixel format specified, yuvj420p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0xf35ff400] using SAR=16/9
[libx264 @ 0xf35ff400] using cpu capabilities: none!
[libx264 @ 0xf3
50.966 Finished command : ffmpeg [Ljava.lang.String;@7c54447
您正在使用 amerge 将 3 个单声道输入合并为一个 3 通道流。 ffmpeg 将其解释为 2.1 声道布局 (FL+FR+LFE)。 -ac 2 选项在缩混为立体声时忽略低频效果，因此第三个通道被丢弃。
一种方法是使用声像过滤器手动执行缩混。您没有指定哪些输入通道应该进入哪些输出通道，所以这个例子只是将它们全部放在每个输出通道中。
ffmpeg -i input0 -i input1 -i input2 -filter_complex \
"[0:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=green[a]; \
[1:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=red[b]; \
[2:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=blue[c]; \
[b][c]hstack=inputs=2,scale=iw/2:-2[bottom]; \
[a][bottom]vstack=inputs=2,scale=ih*2:-1,format=yuv420p[video]; \
[0:a][1:a][2:a]amerge=inputs=3,pan=stereo|FL<c0+c1+c2|FR<c0+c1+c2[audio]" \
-map "[video]" -map "[audio]" -movflags +faststart output.mp4
ffmpeg -layouts 输出在处理音频通道时很有用。
与问题无关：我假设你想要 yuv420p 输出而不是 yuvj420p 所以我添加了格式过滤器并添加了 -movflags +faststart 因为我猜你将要展示通过渐进式下载视频。