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Sur d’autres sites (4032)

Merge audio of multiple movies by ffmpeg command

11 février 2019, par S.T

I want to merge 3 video files to one. my problem is that i can hear the audio only from 2. one of them is muted.

The command i did will show the 3 movies each one next to each other and should play the audio from the whole 3.

This is my query :

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};

The result of this command is that i can hear only movies a and b.
Thanks a lot :)

Edit

I also tried this one :

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};

Another Edit

After another investigation, i saw that he is not merging the last movie audio. Also if i have 4 movies, it merges 3 and you can’t hear the last one.

log (too long - this is the last half of it) :

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

ffmpeg, v4l, snd_aloop ... sound asyncron (alsa buffer xrun)

28 janvier 2019, par Tobias

I’m trying to create a stream that automatically reloads random inputs. I would like to extend this to a database later.

Each time ffmpeg finishes and starts again, so the input changes, the connection to the rtmp is interrupted briefly causing the whole connection breaks down. I then tried to separate audio and video, to send them to virtual devices and read from there again. Split the stream on virtual devices, reassemble them directly and send them to rtmp. If the input is then exchanged, the sending to the devices interrupts what does not bother the second ffmpeg. As soon as I stop sending to the devices the fps go very slowly (10 - 20 sec) from 25 to 0. Only then does the transmitter ffmpeg break the connection to the rtmp. The script which exchanges the inputs needs only one second. A practical test showed that everything works as desired.

I can quite comfortably change the input while the second ffmpeg maintains the stream ...

The joy did not last long. The sound is good 1 sec delayed. But sporadically. Sometimes everything works great. Sometimes the sound is offset.

I wrote several scripts for this.

Background :

File is selected by random
Media file is split and written to / dev / video0 (v4l loopback) and alsa default (snd_aloop loopback)
Put the splits together again and stream them to a rtmp server

Code that selects the input and sends to / dev / video0 and alsa default

#!/bin/bash



cat /dev/null > log



while true;

do



  WATERMARK="watermark.png";

  dir='/homeXXXXXXXXXX/mix'

  file=`/bin/ls -1 "$dir" | sort --random-sort | head -1`

  DATEI=`readlink --canonicalize "$dir/$file"` # Converts to full path



if [ -z $DATEI ]

then

  echo "Keine Datei gefunden" >> log;

else

  START=$(date +%s);

  echo "Sende $DATEI" >> log;

  ffmpeg -re -y -i "$DATEI" -c:v libx264 -vf "fps=25,scale=640:480,setdar=4:3" -async 1 -pix_fmt yuv420p -preset ultrafast -map 0:0 -f v4l2 -vcodec rawvideo /dev/video0 -f alsa default

fi



DOKILL=`cat kill`;

if [ "$DOKILL" = "1"]

then

  break;

fi



done

The Output

./run.sh 

ffmpeg version 3.2.12-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers

  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516

  configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared

  libavutil      55. 34.101 / 55. 34.101

  libavcodec     57. 64.101 / 57. 64.101

  libavformat    57. 56.101 / 57. 56.101

  libavdevice    57.  1.100 / 57.  1.100

  libavfilter     6. 65.100 /  6. 65.100

  libavresample   3.  1.  0 /  3.  1.  0

  libswscale      4.  2.100 /  4.  2.100

  libswresample   2.  3.100 /  2.  3.100

  libpostproc    54.  1.100 / 54.  1.100

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/mix/XXXXXXXXXXXXX.mp4':

  Metadata:

    major_brand     : isom

    minor_version   : 512

    compatible_brands: isomiso2avc1mp41

    title           : XXXXXXXXXXXXXXX 



    encoder         : Lavf57.41.100

  Duration: 00:03:53.48, start: 0.000000, bitrate: 2705 kb/s

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2573 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)

    Metadata:

      handler_name    : VideoHandler

    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)

    Metadata:

      handler_name    : SoundHandler

Codec AVOption preset (Configuration preset) specified for output file #0 (/dev/video0) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.

[Parsed_setdar_2 @ 0x5571234fe020] num:den syntax is deprecated, please use num/den or named options instead

-async is forwarded to lavfi similarly to -af aresample=async=1:min_hard_comp=0.100000:first_pts=0.

Output #0, v4l2, to '/dev/video0':

  Metadata:

    major_brand     : isom

    minor_version   : 512

    compatible_brands: isomiso2avc1mp41

    title           : XXXXXXXXXXX 



    encoder         : Lavf57.56.101

    Stream #0:0(und): Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc (default)

    Metadata:

      handler_name    : VideoHandler

      encoder         : Lavc57.64.101 rawvideo

Output #1, alsa, to 'default':

  Metadata:

    major_brand     : isom

    minor_version   : 512

    compatible_brands: isomiso2avc1mp41

    title           : XXXXXXXXXX 



    encoder         : Lavf57.56.101

    Stream #1:0(und): Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s (default)

    Metadata:

      handler_name    : SoundHandler

      encoder         : Lavc57.64.101 pcm_s16le

Stream mapping:

  Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))

  Stream #0:1 -> #1:0 (aac (native) -> pcm_s16le (native))

Press [q] to stop, [?] for help

frame=  736 fps= 24 q=-0.0 Lsize=N/A time=00:00:29.67 bitrate=N/A speed=0.979x    

video:331200kB audio:5112kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Exiting normally, received signal 2.

The send script

#!/bin/bash



IP="XXXXXXXXX";



ffmpeg -f video4linux2 -i /dev/video0 -f alsa -acodec pcm_s16le -i default -f flv -async 1 -pix_fmt yuv420p -preset ultrafast -vcodec libx264 -r 25 -s 640x260 -acodec aac rtmp://$IP:1935/live/test

The Output

./send_stream.sh 

ffmpeg version 3.2.12-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers

  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516

  configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared

  libavutil      55. 34.101 / 55. 34.101

  libavcodec     57. 64.101 / 57. 64.101

  libavformat    57. 56.101 / 57. 56.101

  libavdevice    57.  1.100 / 57.  1.100

  libavfilter     6. 65.100 /  6. 65.100

  libavresample   3.  1.  0 /  3.  1.  0

  libswscale      4.  2.100 /  4.  2.100

  libswresample   2.  3.100 /  2.  3.100

  libpostproc    54.  1.100 / 54.  1.100

Input #0, video4linux2,v4l2, from '/dev/video0':

  Duration: N/A, start: 1548393682.674066, bitrate: 110592 kb/s

    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, 110592 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc

Guessed Channel Layout for Input Stream #1.0 : stereo

Input #1, alsa, from 'default':

  Duration: N/A, start: 1548393682.677901, bitrate: 1536 kb/s

    Stream #1:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s

-async is forwarded to lavfi similarly to -af aresample=async=1:min_hard_comp=0.100000:first_pts=0.

[libx264 @ 0x55e22cfa4f00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX

[libx264 @ 0x55e22cfa4f00] profile Constrained Baseline, level 2.1

[libx264 @ 0x55e22cfa4f00] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0

Output #0, flv, to 'rtmp://XXXXXXXXXXX:1935/live/test':

  Metadata:

    encoder         : Lavf57.56.101

    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 640x260, q=-1--1, 25 fps, 1k tbn, 25 tbc

    Metadata:

      encoder         : Lavc57.64.101 libx264

    Side data:

      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1

    Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 48000 Hz, stereo, fltp, 128 kb/s

    Metadata:

      encoder         : Lavc57.64.101 aac

Stream mapping:

  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))

  Stream #1:0 -> #0:1 (pcm_s16le (native) -> aac (native))

Press [q] to stop, [?] for help

[alsa @ 0x55e22cf87300] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)

[video4linux2,v4l2 @ 0x55e22cf84fe0] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)

Past duration 0.613319 too large    7344kB time=00:01:05.85 bitrate= 913.5kbits/s speed=1.04x    

Past duration 0.614372 too large    7644kB time=00:01:08.39 bitrate= 915.6kbits/s speed=1.04x    

Past duration 0.609749 too large    7834kB time=00:01:10.91 bitrate= 905.0kbits/s speed=1.04x    

Past duration 0.604362 too large    8038kB time=00:01:12.92 bitrate= 903.0kbits/s speed=1.04x    

Past duration 0.609489 too large    8070kB time=00:01:13.45 bitrate= 900.1kbits/s speed=1.04x    

Past duration 0.615013 too large    8094kB time=00:01:13.94 bitrate= 896.8kbits/s speed=1.04x    

Past duration 0.610893 too large    8179kB time=00:01:14.94 bitrate= 894.0kbits/s speed=1.04x    

Past duration 0.664711 too large

Past duration 0.639565 too large    8263kB time=00:01:15.47 bitrate= 896.8kbits/s speed=1.04x    

Past duration 0.668999 too large    8339kB time=00:01:15.94 bitrate= 899.5kbits/s speed=1.04x    

Past duration 0.605766 too large

Past duration 0.633049 too large    8399kB time=00:01:16.48 bitrate= 899.6kbits/s speed=1.04x    

Past duration 0.674599 too large

Past duration 0.616035 too large    8451kB time=00:01:16.95 bitrate= 899.7kbits/s speed=1.04x    

Past duration 0.656136 too large

Past duration 0.604195 too large

Past duration 0.601387 too large    8512kB time=00:01:17.46 bitrate= 900.2kbits/s speed=1.04x    

Past duration 0.621895 too large    8565kB time=00:01:17.95 bitrate= 900.1kbits/s speed=1.04x    

Past duration 0.670937 too large    8605kB time=00:01:18.46 bitrate= 898.4kbits/s speed=1.04x    

Past duration 0.604500 too large    8642kB time=00:01:18.99 bitrate= 896.2kbits/s speed=1.04x    

frame= 1913 fps= 25 q=-1.0 Lsize=    8670kB time=00:01:19.48 bitrate= 893.6kbits/s speed=1.04x    

video:7290kB audio:1280kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.160292%

[libx264 @ 0x55e22cfa4f00] frame I:8     Avg QP:18.25  size: 15502

[libx264 @ 0x55e22cfa4f00] frame P:1905  Avg QP:20.95  size:  3853

[libx264 @ 0x55e22cfa4f00] mb I  I16..4: 100.0%  0.0%  0.0%

[libx264 @ 0x55e22cfa4f00] mb P  I16..4:  6.4%  0.0%  0.0%  P16..4: 38.1%  0.0%  0.0%  0.0%  0.0%    skip:55.5%

[libx264 @ 0x55e22cfa4f00] coded y,uvDC,uvAC intra: 46.0% 30.3% 13.4% inter: 20.1% 9.8% 1.1%

[libx264 @ 0x55e22cfa4f00] i16 v,h,dc,p: 47% 34% 10%  9%

[libx264 @ 0x55e22cfa4f00] i8c dc,h,v,p: 45% 28% 22%  5%

[libx264 @ 0x55e22cfa4f00] kb/s:750.98

[aac @ 0x55e22cfa62a0] Qavg: 579.067

Exiting normally, received signal 2.

First everything is fine and then comes

Past duration 0.616035 too large    8451kB time=00:01:16.95 bitrate= 899.7kbits/s speed=1.04x    

Past duration 0.656136 too large

Past duration 0.604195 too large

Past duration 0.601387 too large    8512kB time=00:01:17.46 bitrate= 900.2kbits/s speed=1.04x

And then when that comes, dives in the first window, so in the ffmpeg sends the input :

Stream mapping:

  Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))

  Stream #0:1 -> #1:0 (aac (native) -> pcm_s16le (native))

Press [q] to stop, [?] for help

frame=    9 fps=0.0 q=-0.0 size=N/A time=00:00:00.36 bitrate=N/A dup=1 drop=0 spframe=   21 fps= 21 q=-0.0 size=N/A time=00:00:00.84 bitrate=N/A dup=1 drop=0 sp[alsa @ 0x5643b3293160] ALSA buffer xrun.

    Last message repeated 1 times

frame=   33 fps= 22 q=-0.0 size=N/A time=00:00:01.32 bitrate=N/A dup=1 drop=0 sp[alsa @ 0x5643b3293160] ALSA buffer xrun.

    Last message repeated 1 times

frame=   46 fps= 23 q=-0.0 size=N/A time=00:00:01.84 bitrate=N/A dup=1 drop=0 spframe=   58 fps= 23 q=-0.0 size=N/A time=00:00:02.32 bitrate=N/A dup=1 drop=0 spframe=   71 fps= 24 q=-0.0 size=N/A time=00:00:02.84 bitrate=N/A dup=1 drop=0 spframe=   83 fps= 24 q=-0.0 size=N/A time=00:00:03.32 bitrate=N/A dup=1 drop=0 sp[alsa @ 0x5643b3293160] ALSA buffer xrun.

frame=   96 fps= 24 q=-0.0 size=N/A time=00:00:03.84 bitrate=N/A dup=1 drop=0 sp[alsa @ 0x5643b3293160] ALSA buffer xrun.

The sound is then absolutely unsynchronized ...

Does anyone have any advice and can help me ?

ffmpeg audio conversion : encoder pcm_u8 working pcm_s8 not

14 novembre 2018, par patszn

I need to convert audio inside video to 8 Bit signed PCM. I try it like this :

C:\Users\E\Desktop\ffmpeg-20160731-04da20e-win32-static\bin>ffmpeg -i minions.mp4 -vcodec mjpeg -s 800x480 -acodec pcm_s8 -ac 1 out.avi

output :

ffmpeg version N-81192-g04da20e Copyright (c) 2000-2016 the FFmpeg developers

  built with gcc 5.4.0 (GCC)

  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-lib

ebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfree

type --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib

openjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame

 --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-

libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib

  libavutil      55. 28.100 / 55. 28.100

  libavcodec     57. 51.100 / 57. 51.100

  libavformat    57. 44.100 / 57. 44.100

  libavdevice    57.  0.102 / 57.  0.102

  libavfilter     6. 49.100 /  6. 49.100

  libswscale      4.  1.100 /  4.  1.100

  libswresample   2.  1.100 /  2.  1.100

  libpostproc    54.  0.100 / 54.  0.100

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'minions.mp4':

  Metadata:

    major_brand     : mp42

    minor_version   : 0

    compatible_brands: isommp42

    creation_time   : 2016-03-17 10:06:57

  Duration: 00:03:18.72, start: 0.000000, bitrate: 1869 kb/s

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1675 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default

)

    Metadata:

      handler_name    : VideoHandler

    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s (default)

    Metadata:

      creation_time   : 2016-03-17 10:06:58

      handler_name    : IsoMedia File Produced by Google, 5-11-2011

[swscaler @ 04821880] deprecated pixel format used, make sure you did set range correctly

[avi @ 048c0460] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.

    Last message repeated 1 times

Output #0, avi, to 'out.avi':

  Metadata:

    major_brand     : mp42

    minor_version   : 0

    compatible_brands: isommp42

    encoder         : Lavf57.44.100

    Stream #0:0(und): Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc), 800x480 [SAR 16:15 DAR 16:9], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)

    Metadata:

      handler_name    : VideoHandler

      encoder         : Lavc57.51.100 mjpeg

    Side data:

      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1

    Stream #0:1(und): Audio: pcm_s8, 44100 Hz, mono, u8, 352 kb/s (default)

    Metadata:

      creation_time   : 2016-03-17 10:06:58

      handler_name    : IsoMedia File Produced by Google, 5-11-2011

      encoder         : Lavc57.51.100 pcm_s8

Stream mapping:

  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))

  Stream #0:1 -> #0:1 (aac (native) -> pcm_s8 (native))

Could not write header for output file #0 (incorrect codec parameters ?): Operation not permitted

ffmpeg can not write a header for output file. I want to mention that if audio encoder is selected to pcm_u8 everything works fine.

C:\Users\E\Desktop\ffmpeg-20160731-04da20e-win32-static\bin>ffmpeg -i minions.mp4 -vcodec mjpeg -s 800x480 -acodec pcm_u8 -ac 1 out.avi

output :

ffmpeg version N-81192-g04da20e Copyright (c) 2000-2016 the FFmpeg developers

  built with gcc 5.4.0 (GCC)

  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-lib

ebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfree

type --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib

openjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame

 --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-

libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib

  libavutil      55. 28.100 / 55. 28.100

  libavcodec     57. 51.100 / 57. 51.100

  libavformat    57. 44.100 / 57. 44.100

  libavdevice    57.  0.102 / 57.  0.102

  libavfilter     6. 49.100 /  6. 49.100

  libswscale      4.  1.100 /  4.  1.100

  libswresample   2.  1.100 /  2.  1.100

  libpostproc    54.  0.100 / 54.  0.100

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'minions.mp4':

  Metadata:

    major_brand     : mp42

    minor_version   : 0

    compatible_brands: isommp42

    creation_time   : 2016-03-17 10:06:57

  Duration: 00:03:18.72, start: 0.000000, bitrate: 1869 kb/s

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1675 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default

)

    Metadata:

      handler_name    : VideoHandler

    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s (default)

    Metadata:

      creation_time   : 2016-03-17 10:06:58

      handler_name    : IsoMedia File Produced by Google, 5-11-2011

File 'out.avi' already exists. Overwrite ? [y/N] y

[swscaler @ 030a1880] deprecated pixel format used, make sure you did set range correctly

[avi @ 04a10460] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.

    Last message repeated 1 times

Output #0, avi, to 'out.avi':

  Metadata:

    major_brand     : mp42

    minor_version   : 0

    compatible_brands: isommp42

    ISFT            : Lavf57.44.100

    Stream #0:0(und): Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc), 800x480 [SAR 16:15 DAR 16:9], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)

    Metadata:

      handler_name    : VideoHandler

      encoder         : Lavc57.51.100 mjpeg

    Side data:

      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1

    Stream #0:1(und): Audio: pcm_u8 ([1][0][0][0] / 0x0001), 44100 Hz, mono, u8, 352 kb/s (default)

    Metadata:

      creation_time   : 2016-03-17 10:06:58

      handler_name    : IsoMedia File Produced by Google, 5-11-2011

      encoder         : Lavc57.51.100 pcm_u8

Stream mapping:

  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))

  Stream #0:1 -> #0:1 (aac (native) -> pcm_u8 (native))

Press [q] to stop, [?] for help

frame= 4764 fps=250 q=24.8 Lsize=   74247kB time=00:03:18.71 bitrate=3060.8kbits/s speed=10.4x

video:65364kB audio:8558kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.438745%

What is the problem ? Why conversion does not work for signed pcm ?

Encoders for both unsigned and signed pcm are avaible :

C:\Users\E\Desktop\ffmpeg-20160731-04da20e-win32-static\bin>ffmpeg -encoders

 .

 .

 A..... pcm_f32be            PCM 32-bit floating point big-endian

 A..... pcm_f32le            PCM 32-bit floating point little-endian

 A..... pcm_f64be            PCM 64-bit floating point big-endian

 A..... pcm_f64le            PCM 64-bit floating point little-endian

 A..... pcm_mulaw            PCM mu-law / G.711 mu-law

 A..... pcm_s16be            PCM signed 16-bit big-endian

 A..... pcm_s16be_planar     PCM signed 16-bit big-endian planar

 A..... pcm_s16le            PCM signed 16-bit little-endian

 A..... pcm_s16le_planar     PCM signed 16-bit little-endian planar

 A..... pcm_s24be            PCM signed 24-bit big-endian

 A..... pcm_s24daud          PCM D-Cinema audio signed 24-bit

 A..... pcm_s24le            PCM signed 24-bit little-endian

 A..... pcm_s24le_planar     PCM signed 24-bit little-endian planar

 A..... pcm_s32be            PCM signed 32-bit big-endian

 A..... pcm_s32le            PCM signed 32-bit little-endian

 A..... pcm_s32le_planar     PCM signed 32-bit little-endian planar

 A..... pcm_s8               PCM signed 8-bit

 A..... pcm_s8_planar        PCM signed 8-bit planar

 A..... pcm_u16be            PCM unsigned 16-bit big-endian

 A..... pcm_u16le            PCM unsigned 16-bit little-endian

 A..... pcm_u24be            PCM unsigned 24-bit big-endian

 A..... pcm_u24le            PCM unsigned 24-bit little-endian

 A..... pcm_u32be            PCM unsigned 32-bit big-endian

 A..... pcm_u32le            PCM unsigned 32-bit little-endian

 A..... pcm_u8               PCM unsigned 8-bit

 .

 .

1 | ... | 1276 | 1277 | 1278 | 1279 | 1280 | 1281 | 1282 | 1283 | 1284 | ... | 1344

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