No way to set input stream duration
opheliagame opened this issue · comments
The ffmpeg command produced from using the given js code is not the expected result. Since changing the ffmpeg command produces the correct result, there is a need to introduce a way in the API to specify a duration for the input stream/file.
Version information
- fluent-ffmpeg version: 2.1.2
- ffmpeg version: 4.2.9003
- OS: Windows 11
Code to reproduce
ffmpeg()
.duration(10)
.input('https://video16.pad.ma/BZX/240p1.mp4')
.seekInput(0)
.duration(10)
.input('https://video16.pad.ma/BZX/240p1.mp4')
.seekInput(100)
.mergeToFile('output.mp4')
.on('start', (commandline) => {
console.log(`Spawned ffmpeg with command: ${commandline}`)
})
.on('stderr', function(stderrLine) {
console.log('Stderr output: ' + stderrLine);
})
.on('error', function(err, stdout, stderr) {
console.log('Cannot process video: ' + err.message);
})(note: if the problem only happens with some inputs, include a link to such an input file)
Expected results
Expected an output file of 20 seconds, from 1-10 from the first input and 100-110 from the second input.
Observed results
Output of 10 seconds, just the first video.
ffmpeg output
Spawned ffmpeg with command: ffmpeg -ss 0 -i https://video16.pad.ma/BZX/240p1.mp4 -ss 100 -i https://video16.pad.ma/BZX/240p1.mp4 -y -filter_complex concat=n=2:v=1:a=1 -t 10 -t 10 output.mp4
Stderr output: ffmpeg version 6.0-essentials_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
Stderr output: built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
Stderr output: configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
Stderr output: libavutil 58. 2.100 / 58. 2.100
Stderr output: libavcodec 60. 3.100 / 60. 3.100
Stderr output: libavformat 60. 3.100 / 60. 3.100
Stderr output: libavdevice 60. 1.100 / 60. 1.100
Stderr output: libavfilter 9. 3.100 / 9. 3.100
Stderr output: libswscale 7. 1.100 / 7. 1.100
Stderr output: libswresample 4. 10.100 / 4. 10.100
Stderr output: libpostproc 57. 1.100 / 57. 1.100
Stderr output: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://video16.pad.ma/BZX/240p1.mp4':
Stderr output: Metadata:
Stderr output: major_brand : isom
Stderr output: minor_version : 512
Stderr output: compatible_brands: isomiso2avc1mp41
Stderr output: encoder : Lavf53.21.1
Stderr output: Duration: 00:44:17.01, start: 0.000000, bitrate: 92 kb/s
Stderr output: Stream #0:0[0x1](eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(progressive), 320x240 [SAR 1:1 DAR 4:3], 24 kb/s, 25 fps, 25 tbr, 25 tbn (default)
Stderr output: Metadata:
Stderr output: handler_name : VideoHandler
Stderr output: vendor_id : [0][0][0][0]
Stderr output: Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
Stderr output: Metadata:
Stderr output: handler_name : SoundHandler
Stderr output: vendor_id : [0][0][0][0]
Stderr output: Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'https://video16.pad.ma/BZX/240p1.mp4':
Stderr output: Metadata:
Stderr output: major_brand : isom
Stderr output: minor_version : 512
Stderr output: compatible_brands: isomiso2avc1mp41
Stderr output: encoder : Lavf53.21.1
Stderr output: Duration: 00:44:17.01, start: 0.000000, bitrate: 92 kb/s
Stderr output: Stream #1:0[0x1](eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(progressive), 320x240 [SAR 1:1 DAR 4:3], 24 kb/s, 25 fps, 25 tbr, 25 tbn (default)
Stderr output: Metadata:
Stderr output: handler_name : VideoHandler
Stderr output: vendor_id : [0][0][0][0]
Stderr output: Stream #1:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
Stderr output: Metadata:
Stderr output: handler_name : SoundHandler
Stderr output: vendor_id : [0][0][0][0]
Stderr output: Stream mapping:
Stderr output: Stream #0:0 (h264) -> concat
Stderr output: Stream #0:1 (aac) -> concat
Stderr output: Stream #1:0 (h264) -> concat
Stderr output: Stream #1:1 (aac) -> concat
Stderr output: concat -> Stream #0:0 (libx264)
Stderr output: concat -> Stream #0:1 (aac)
Stderr output: Press [q] to stop, [?] for help
Stderr output: [libx264 @ 00000272a2e675c0] using SAR=1/1
Stderr output: [libx264 @ 00000272a2e675c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
Stderr output: [libx264 @ 00000272a2e675c0] profile High, level 1.3, 4:2:0, 8-bit
Stderr output: [libx264 @ 00000272a2e675c0] 264 - core 164 r3106 eaa68fa - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=7 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Stderr output: Output #0, mp4, to 'output.mp4':
Stderr output: Metadata:
Stderr output: major_brand : isom
Stderr output: minor_version : 512
Stderr output: compatible_brands: isomiso2avc1mp41
Stderr output: encoder : Lavf60.3.100
Stderr output: Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p(progressive), 320x240 [SAR 1:1 DAR 4:3], q=2-31, 25 fps, 12800 tbn
Stderr output: Metadata:
Stderr output: encoder : Lavc60.3.100 libx264
Stderr output: Side data:
Stderr output: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
Stderr output: Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 69 kb/s
Stderr output: Metadata:
Stderr output: encoder : Lavc60.3.100 aac
Stderr output: frame= 0 fps=0.0 q=0.0 size= 0kB time=00:00:00.25 bitrate= 1.5kbits/s speed=0.21x
Stderr output: frame= 250 fps=148 q=-1.0 Lsize= 81kB time=00:00:09.98 bitrate= 66.7kbits/s speed=5.89x
Stderr output: video:9kB audio:63kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 12.864926%
Stderr output: [libx264 @ 00000272a2e675c0] frame I:2 Avg QP:10.74 size: 212
Stderr output: [libx264 @ 00000272a2e675c0] frame P:101 Avg QP:13.87 size: 60
Stderr output: [libx264 @ 00000272a2e675c0] frame B:147 Avg QP:12.68 size: 16
Stderr output: [libx264 @ 00000272a2e675c0] consecutive B-frames: 20.0% 4.8% 0.0% 75.2%
Stderr output: [libx264 @ 00000272a2e675c0] mb I I16..4: 71.0% 27.5% 1.5%
Stderr output: [libx264 @ 00000272a2e675c0] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 1.0% 0.2% 0.1% 0.0% 0.0% skip:98.6%
Stderr output: [libx264 @ 00000272a2e675c0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.2% 0.0% 0.0% direct: 0.0% skip:99.8% L0:62.8% L1:37.2% BI: 0.0%
Stderr output: [libx264 @ 00000272a2e675c0] 8x8 transform intra:27.7% inter:28.5%
Stderr output: [libx264 @ 00000272a2e675c0] coded y,uvDC,uvAC intra: 2.7% 0.0% 0.0% inter: 0.2% 0.0% 0.0%
Stderr output: [libx264 @ 00000272a2e675c0] i16 v,h,dc,p: 90% 1% 10% 0%
Stderr output: [libx264 @ 00000272a2e675c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 54% 9% 37% 0% 0% 0% 0% 0% 0%
Stderr output: [libx264 @ 00000272a2e675c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 25% 36% 1% 3% 5% 3% 3% 1%
Stderr output: [libx264 @ 00000272a2e675c0] i8c dc,h,v,p: 100% 0% 0% 0%
Stderr output: [libx264 @ 00000272a2e675c0] Weighted P-Frames: Y:55.4% UV:0.0%
Stderr output: [libx264 @ 00000272a2e675c0] ref P L0: 94.8% 0.6% 3.9% 0.1% 0.6%
Stderr output: [libx264 @ 00000272a2e675c0] ref B L0: 72.9% 27.1%
Stderr output: [libx264 @ 00000272a2e675c0] ref B L1: 97.1% 2.9%
Stderr output: [libx264 @ 00000272a2e675c0] kb/s:7.02
Stderr output: [aac @ 00000272a309a140] Qavg: 64841.527
Stderr output: