[英]How can i merge two videos using ffmpeg?
我正在使用Writingminds:FFmpegAndroid:0.3.2 library。並且面臨此權限被拒絕的問題。
D/Video merging :: progress: /storage/emulated/0/DCIM/Camera/VID_20171109_070248.mp4: Permission denied
11-10 17:35:09.905 10592-10592 / com.example.hasib.vjoiner D /視頻合並::故障:ffmpeg版本n3.0.1版權所有(c)2000-2016使用gcc 4.8(GCC)構建的FFmpeg開發人員
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
/storage/emulated/0/DCIM/Camera/VID_20171109_070248.mp4: Permission denied
11-10 17:35:09.905 10592-10592 / com.example.hasib.vjoiner D /視頻合並::已完成
這是我要執行的命令。
String[] command = new String[]{"-y", "-i", videoPaths.get(0), "-i", videoPaths.get(1).toString(), "-strict", "experimental", "-filter_complex",
"[0:v]scale=iw*min(1920/iw\\,1080/ih):ih*min(1920/iw\\,1080/ih), pad=1920:1080:(1920-iw*min(1920/iw\\,1080/ih))/2:(1080-ih*min(1920/iw\\,1080/ih))/2,setsar=1:1[v0];[1:v] scale=iw*min(1920/iw\\,1080/ih):ih*min(1920/iw\\,1080/ih), pad=1920:1080:(1920-iw*min(1920/iw\\,1080/ih))/2:(1080-ih*min(1920/iw\\,1080/ih))/2,setsar=1:1[v1];[v0][0:a][v1][1:a] concat=n=2:v=1:a=1",
"-ab", "48000", "-ac", "2", "-ar", "22050", "-s", "1920x1080", "-vcodec", "libx264", "-crf", "27", "-q", "4", "-preset", "ultrafast", outputPath + "/output.mp4"};
檢查清單文件中的“讀取和寫入外部Sd權限”,並為其提供動態權限。
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