Fade Video-Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

Question

I am using below command to add Fade In Fade Out effect to my video

{"-y", "-ss", "" + startMs / 1000, "-t", "" + (endMs - startMs) / 1000, "-i", inputPath, "-acodec", "copy", "-vf", "fade=t=in:st=0:d=5,fade=t=out:st=" + String.valueOf((endMs - startMs) / 1000 - 5) + ":d=5", outputPath};

I received below error-

"Failure3.3 5 .3gpffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers\n built with gcc 4.8 (GCC)\n 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=\n libavutil 55. 17.103 / 55. 17.103\n libavcodec 57. 24.102 / 57. 24.102\n libavformat 57. 25.100 / 57. 25.100\n libavdevice 57. 0.101 / 57. 0.101\n libavfilter 6. 31.100 / 6. 31.100\n libswscale 4. 0.100 / 4. 0.100\n libswresample 2. 0.101 / 2. 0.101\n libpostproc 54. 0.100 / 54. 0.100\nInput #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DCIM/Camera/VID_20180825_071734915.3gp':\n Metadata:\n major_brand : 3gp4\n minor_version : 0\n
compatible_brands: isom3gp4\n creation_time : 2018-08-25 01:47:47\n com.android.version: 8.0.0\n Duration: 00:00:10.83, start: 0.000000, bitrate: 17217 kb/s\n Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown), 1920x1080, 16756 kb/s, SAR 1:1 DAR 16:9, 29.49 fps, 29.58 tbr, 90k tbn, 180k tbc (default)\n Metadata:\n rotate : 90\n
creation_time : 2018-08-25 01:47:47\n handler_name : VideoHandle\n Side data:\n displaymatrix: rotation of -90.00 degrees\n Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 128 kb/s (default)\n Metadata:\n
creation_time : 2018-08-25 01:47:47\n handler_name : SoundHandle\n[h263 @ 0xf49ff400] H.263 does not support resolutions above 2048x1152\nOutput #0, 3gp, to '/storage/emulated/0/Movies/fade_video.3gp':\n Metadata:\n
major_brand : 3gp4\n minor_version : 0\n
compatible_brands: isom3gp4\n com.android.version: 8.0.0\n
Stream #0:0(eng): Video: h263, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 29.58 fps (default)\n Metadata:\n handler_name : VideoHandle\n creation_time : 2018-08-25 01:47:47\n
encoder : Lavc57.24.102 h263\n Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, 128 kb/s (default)\n
Metadata:\n creation_time : 2018-08-25 01:47:47\n
handler_name : SoundHandle\nStream mapping:\n Stream #0:0 -> #0:0 (h264 (native) -> h263 (native))\n Stream #0:1 -> #0:1 (copy)\nError while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height\n"

Why is causing this error in above command?Any help will be welcome.

As the log says, H.263 does not support resolutions above 2048x1152. Your source stream is 1920x1080 but it's 90 deg rotated so ffmpeg is auto-rotating it to 1080x1920 which does not meet the limits. You can add a scale filter after the fade to downsize. — Gyan
@Gyan Okay..so i want that if resolution is 2048x1152 or below it should not scale my video..but if its above than it should scale down my video..will adding scale='min(2048,iw)':'min(1152,ih)' meets my requirement and resolve my issue?Like-{"-y", "-ss", "" + startMs / 1000, "-t", "" + (endMs - startMs) / 1000, "-i", inputPath, "-acodec", "copy", "-vf", "fade=t=in:st=0:d=5,fade=t=out:st=" + String.valueOf((endMs - startMs) / 1000 - 5) + ":d=5,scale='min(2048,iw)':'min(1152,ih)'", outputPath}; — varmashrivastava
scale='if(lte(iw,2048)*lte(ih,1152),iw,if(gt(dar,2048/1152),2048,oh*dar))':'if(lte(iw,2048)*lte(ih,1152),ih,if(gt(dar,2048/1152),ow/dar,1152))' — Gyan
@Gyan Glad if you can post it as an answer with explanation so that i can understand properly and accept it as correct answer.What is "dar" in parameters? — varmashrivastava

Gyan Gyan · Accepted Answer · 2018-10-27T10:17:48

As the log says, H.263 does not support resolutions above 2048x1152. Your source stream is 1920x1080 but it's 90 deg rotated so ffmpeg is auto-rotating it to 1080x1920 which does not meet the limits. You can add a scale filter after the fade to conditionally downsize.

scale='if(lte(iw,2048)*lte(ih,1152),iw,if(gt(dar,2048/1152),2048,2*trunc(oh*dar/2)))':'if(lte(iw,2048)*lte(ih,1152),ih,if(gt(dar,2048/1152),2*trunc(ow/dar/2),1152))'

What the x and y exprs do is first check if the input is greater than 2048x1152. If no, keep original resolution. If yes, check display ratio of input. If greater than 2048:1152, downsize width to 2048 and proportionally resize height, else downsize height to 1152 and proportionally resize width. dar stands for display aspect ratio.

Fade Video-Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

1 Answers