Newest 'ffmpeg' Questions - Stack Overflow
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Android version in Metadata
26 août 2018, par ClassAI just ran this FFMPEG command and noticed that the android version is in the metadata:
ffmpeg -i test.mp4 -f ffmetadata metadata.txt --> com.android.version=7.0This was very interesting because I'm currently trying to check if a video file was taken with a Android device or not.
Can someone please tell me if all Android devices add this tag to the Metadata of a video and if I will be able to use MediaMetadataRetriever to check if this tag exists?
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Ffmpeg - Exclamation Point Stopping Watermark
25 août 2018, par user5947524I am using the code below to automatically watermark videos in a folder:
for %%a in ("C:\Users\Work\Desktop\Redo\*.mp4") do ( for /F "delims=" %%I in ('ffprobe -v quiet -show_entries stream^=width -of csv^=p^=0:s^=x %%a') do set "codec=%%I" ffmpeg -i logo.png -y -v quiet -vf scale=!codec!*0.25:-1 scaled.png ffmpeg -i "%%a" -vf "movie=scaled.png [watermark]; [in][watermark] overlay=10:main_h-overlay_h [out]" "C:\Users\Work\Desktop\Redo Done\%%~na.mp4" )Some of the videos fail to watermark and give the similar error below:
C:\Users\Work\Desktop\Redo\Arcade_h-overlay_h [out]: No such file or directoryI found out all videos with exclamation points (!) in the name do this.
How can I get these videos to watermark with an exclamation point in the title?
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FFMPEG android is processing slow
25 août 2018, par jpcI'm using https://github.com/WritingMinds/ffmpeg-android-java as my framework for FFMPEG
I'm trying to convert an image to a video using this command
ffmpeg -y -loop 1 -i input.jpg -strict -2 -vcodec mpeg4 -t 5 -pix_fmt yuv420p out.mp4It took about 32 seconds to finish the process which is very slow for my requirements.
Is there a way to speed this up? I'm thinking of something around 5 seconds, perhaps approximately equal to the specified length of the video
here's the log btw
11-23 12:12:13.587 4228-4228/com.lo.and.dev W/com.lo.and.util: WARNING: linker: /data/data/com.lo.and.dev/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix. 11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers 11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: built on Oct 7 2014 15:08:46 with gcc 4.8 (GCC) 11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --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/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags= 11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: libavutil 54. 7.100 / 54. 7.100 11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: libavcodec 56. 1.100 / 56. 1.100 11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: libavformat 56. 4.101 / 56. 4.101 11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: libavdevice 56. 0.100 / 56. 0.100 11-23 12:12:13.607 4228-4228/com.lo.and.dev W/com.lo.and.util: libavfilter 5. 1.100 / 5. 1.100 11-23 12:12:13.617 4228-4228/com.lo.and.dev W/com.lo.and.util: libswscale 3. 0.100 / 3. 0.100 11-23 12:12:13.617 4228-4228/com.lo.and.dev W/com.lo.and.util: libswresample 1. 1.100 / 1. 1.100 11-23 12:12:13.617 4228-4228/com.lo.and.dev W/com.lo.and.util: libpostproc 53. 0.100 / 53. 0.100 11-23 12:12:13.707 4228-4228/com.lo.and.dev W/com.lo.and.util: Input #0, image2, from '/storage/emulated/0/DCIM/Camera/20151122_172809.jpg': 11-23 12:12:13.707 4228-4228/com.lo.and.dev W/com.lo.and.util: Duration: 00:00:00.04, start: 0.000000, bitrate: 95165 kb/s 11-23 12:12:13.717 4228-4228/com.lo.and.dev W/com.lo.and.util: Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc 11-23 12:12:13.727 4228-4228/com.lo.and.dev W/com.lo.and.util: [swscaler @ 0xb5d89000] deprecated pixel format used, make sure you did set range correctly 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Output #0, mp4, to '/storage/emulated/0/DCIM/out.mp4': 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Metadata: 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: encoder : Lavf56.4.101 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Stream #0:0: Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Metadata: 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: encoder : Lavc56.1.100 mpeg4 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Stream mapping: 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg4 (native)) 11-23 12:12:13.777 4228-4228/com.lo.and.dev W/com.lo.and.util: Press [q] to stop, [?] for help 11-23 12:12:14.707 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 3 fps=0.0 q=2.0 size= 343kB time=00:00:00.12 bitrate=23400.5kbits/s 11-23 12:12:15.247 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 5 fps=4.2 q=4.9 size= 345kB time=00:00:00.20 bitrate=14125.9kbits/s 11-23 12:12:15.737 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 7 fps=4.0 q=10.2 size= 347kB time=00:00:00.28 bitrate=10149.8kbits/s 11-23 12:12:16.467 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 10 fps=4.1 q=18.9 size= 350kB time=00:00:00.40 bitrate=7167.7kbits/s 11-23 12:12:17.037 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 12 fps=4.0 q=24.8 size= 352kB time=00:00:00.48 bitrate=6007.9kbits/s 11-23 12:12:17.567 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 14 fps=3.9 q=27.8 size= 403kB time=00:00:00.56 bitrate=5893.7kbits/s 11-23 12:12:18.337 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 17 fps=4.0 q=31.0 size= 406kB time=00:00:00.68 bitrate=4891.5kbits/s 11-23 12:12:18.847 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 19 fps=3.9 q=31.0 size= 408kB time=00:00:00.76 bitrate=4398.6kbits/s 11-23 12:12:19.607 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 22 fps=3.9 q=31.0 size= 411kB time=00:00:00.88 bitrate=3827.4kbits/s 11-23 12:12:20.107 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 24 fps=3.9 q=31.0 size= 413kB time=00:00:00.96 bitrate=3525.9kbits/s 11-23 12:12:20.637 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 26 fps=3.9 q=31.0 size= 460kB time=00:00:01.04 bitrate=3624.3kbits/s 11-23 12:12:21.157 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 28 fps=3.9 q=31.0 size= 462kB time=00:00:01.12 bitrate=3381.1kbits/s 11-23 12:12:21.667 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 30 fps=3.9 q=31.0 size= 464kB time=00:00:01.20 bitrate=3169.7kbits/s 11-23 12:12:22.167 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 32 fps=3.9 q=31.0 size= 466kB time=00:00:01.28 bitrate=2984.6kbits/s 11-23 12:12:22.897 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 35 fps=3.9 q=31.0 size= 469kB time=00:00:01.40 bitrate=2746.8kbits/s 11-23 12:12:23.657 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 38 fps=3.9 q=31.0 size= 517kB time=00:00:01.52 bitrate=2788.3kbits/s 11-23 12:12:24.387 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 41 fps=4.0 q=31.0 size= 521kB time=00:00:01.64 bitrate=2600.1kbits/s 11-23 12:12:24.887 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 43 fps=3.9 q=31.0 size= 523kB time=00:00:01.72 bitrate=2488.9kbits/s 11-23 12:12:25.417 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 45 fps=3.9 q=31.0 size= 525kB time=00:00:01.80 bitrate=2387.6kbits/s 11-23 12:12:25.967 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 47 fps=3.9 q=31.0 size= 527kB time=00:00:01.88 bitrate=2294.9kbits/s 11-23 12:12:26.477 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 49 fps=3.9 q=24.8 size= 572kB time=00:00:01.96 bitrate=2390.0kbits/s 11-23 12:12:27.297 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 52 fps=3.9 q=31.0 size= 577kB time=00:00:02.08 bitrate=2271.5kbits/s 11-23 12:12:27.987 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 55 fps=3.9 q=31.0 size= 580kB time=00:00:02.20 bitrate=2159.1kbits/s 11-23 12:12:28.737 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 58 fps=3.9 q=31.0 size= 583kB time=00:00:02.32 bitrate=2058.2kbits/s 11-23 12:12:29.247 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 60 fps=3.9 q=31.0 size= 585kB time=00:00:02.40 bitrate=1996.6kbits/s 11-23 12:12:30.017 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 63 fps=3.9 q=31.0 size= 633kB time=00:00:02.52 bitrate=2057.7kbits/s 11-23 12:12:30.557 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 65 fps=3.9 q=31.0 size= 635kB time=00:00:02.60 bitrate=2000.8kbits/s 11-23 12:12:31.057 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 67 fps=3.9 q=31.0 size= 637kB time=00:00:02.68 bitrate=1947.4kbits/s 11-23 12:12:31.627 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 69 fps=3.9 q=31.0 size= 639kB time=00:00:02.76 bitrate=1897.0kbits/s 11-23 12:12:32.167 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 71 fps=3.9 q=31.0 size= 641kB time=00:00:02.84 bitrate=1849.5kbits/s 11-23 12:12:32.927 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 74 fps=3.9 q=31.0 size= 689kB time=00:00:02.96 bitrate=1907.2kbits/s 11-23 12:12:33.407 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 76 fps=3.9 q=31.0 size= 691kB time=00:00:03.04 bitrate=1862.8kbits/s 11-23 12:12:34.157 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 79 fps=3.9 q=31.0 size= 694kB time=00:00:03.16 bitrate=1800.0kbits/s 11-23 12:12:34.657 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 81 fps=3.9 q=31.0 size= 696kB time=00:00:03.24 bitrate=1760.7kbits/s 11-23 12:12:35.217 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 83 fps=3.9 q=31.0 size= 698kB time=00:00:03.32 bitrate=1723.3kbits/s 11-23 12:12:35.777 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 85 fps=3.9 q=24.8 size= 744kB time=00:00:03.40 bitrate=1791.6kbits/s 11-23 12:12:36.297 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 87 fps=3.9 q=31.0 size= 747kB time=00:00:03.48 bitrate=1759.6kbits/s 11-23 12:12:36.827 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 89 fps=3.9 q=31.0 size= 750kB time=00:00:03.56 bitrate=1724.8kbits/s 11-23 12:12:37.547 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 92 fps=3.9 q=31.0 size= 753kB time=00:00:03.68 bitrate=1675.4kbits/s 11-23 12:12:38.297 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 95 fps=3.9 q=31.0 size= 756kB time=00:00:03.80 bitrate=1629.1kbits/s 11-23 12:12:38.797 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 97 fps=3.9 q=24.8 size= 801kB time=00:00:03.88 bitrate=1690.8kbits/s 11-23 12:12:39.547 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 100 fps=3.9 q=31.0 size= 806kB time=00:00:04.00 bitrate=1650.2kbits/s 11-23 12:12:40.047 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 102 fps=3.9 q=31.0 size= 808kB time=00:00:04.08 bitrate=1621.9kbits/s 11-23 12:12:40.807 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 105 fps=3.9 q=31.0 size= 811kB time=00:00:04.20 bitrate=1581.6kbits/s 11-23 12:12:41.267 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 107 fps=3.9 q=31.0 size= 813kB time=00:00:04.28 bitrate=1555.9kbits/s 11-23 12:12:42.057 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 110 fps=3.9 q=31.0 size= 861kB time=00:00:04.40 bitrate=1602.8kbits/s 11-23 12:12:42.557 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 112 fps=3.9 q=31.0 size= 863kB time=00:00:04.48 bitrate=1578.1kbits/s 11-23 12:12:43.307 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 115 fps=3.9 q=31.0 size= 866kB time=00:00:04.60 bitrate=1542.4kbits/s 11-23 12:12:43.817 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 117 fps=3.9 q=31.0 size= 868kB time=00:00:04.68 bitrate=1519.6kbits/s 11-23 12:12:44.517 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 120 fps=3.9 q=31.0 size= 871kB time=00:00:04.80 bitrate=1486.8kbits/s 11-23 12:12:45.277 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 123 fps=3.9 q=31.0 size= 919kB time=00:00:04.92 bitrate=1530.6kbits/s 11-23 12:12:45.987 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 125 fps=3.9 q=31.0 size= 921kB time=00:00:05.00 bitrate=1509.4kbits/s 11-23 12:12:45.987 4228-4228/com.lo.and.dev W/com.lo.and.util: frame= 125 fps=3.9 q=31.0 Lsize= 923kB time=00:00:05.00 bitrate=1511.6kbits/s 11-23 12:12:45.987 4228-4228/com.lo.and.dev W/com.lo.and.util: video:921kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.148301% -
How to create an image using images with FFMPEG ?
25 août 2018, par nzackoyaHow to create an image using images with FFMPEG? Something like below?
-f lavfi -i color=c=white:s=1080x1920 -loop 1 -i 1.png -loop 1 -i 2.png -filter_complex [0:v][1:v]overlay=shortest=1:x=0:y=0[v1];[v1][2:v]overlay=shortest=1:x=10:y=10 -vframes 1 -q:v 5 -
Process video files in Android using FFMpeg
25 août 2018, par SayakiI would like to preform video processing on android using FFMpeg. I successfull build .so libraries and link it to my NDK project but now I realy dont know what to do next. I cant find any example of how to e.g. crop video or rotate it from NDK. I found many examples of ffmpeg command line tool like:
ffmpeg -i in.mp4 -filter:v "crop=out_w:out_h:x:y" out.mp4but none of them is referencing to C code. Is this possible to do something like example above in NDK C code? Where can I find FFMpeg examples for beginers? Is this possible to invoke ffmpeg command line tool from android app?
