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Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
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ffmpeg : corrupt audio in usage of avfoundation
3 janvier 2016, par AndyI am trying to record my desktop screen (MacBook Pro (Retina, 15-inch, Mid 2014), OSX 10.10.5) with audio. First, I have to find the devices for recording, video:1 and audio:0 in my case.
User@User-MacBook-Pro:~/test$ ffmpeg -hide_banner -f avfoundation -list_devices true -i ""
[AVFoundation input device @ 0x7ff19a422320] AVFoundation video devices:
[AVFoundation input device @ 0x7ff19a422320] [0] FaceTime HD Camera
[AVFoundation input device @ 0x7ff19a422320] [1] Capture screen 0
[AVFoundation input device @ 0x7ff4b9c22320] [2] Capture screen 1
[AVFoundation input device @ 0x7ff19a422320] AVFoundation audio devices:
[AVFoundation input device @ 0x7ff19a422320] [0] Soundflower (2ch)
[AVFoundation input device @ 0x7ff19a422320] [1] Built-in Microphone
[AVFoundation input device @ 0x7ff19a422320] [2] Soundflower (64ch)
: Input/output errorThen I run to capture the screen :
ffmpeg -f avfoundation -i "1:0" out_desktop.mkvand the audio of the output stutters terribly.
But if I use the second external screen (which is connect via HDMI) :ffmpeg -f avfoundation -i "2:0" out_ext.mkvThen I have no audio problems.
So, what could be the cause of this behaviour ? Somehow the video device "Capture screen 0" causes the audio stutter.
Here are the full outputs of the two commands above, Screen 0 :
User@User-MacBook-Pro:~/test$ ffmpeg -f avfoundation -i "1:0" out.mkv
ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 7.0.2 (clang-700.1.81)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 --enable-nonfree --enable-vda
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
[avfoundation @ 0x7fca1200da00] Selected pixel format (yuv420p) is not supported by the input device.
[avfoundation @ 0x7fca1200da00] Supported pixel formats:
[avfoundation @ 0x7fca1200da00] uyvy422
[avfoundation @ 0x7fca1200da00] yuyv422
[avfoundation @ 0x7fca1200da00] nv12
[avfoundation @ 0x7fca1200da00] 0rgb
[avfoundation @ 0x7fca1200da00] bgr0
[avfoundation @ 0x7fca1200da00] Overriding selected pixel format to use uyvy422 instead.
[avfoundation @ 0x7fca1200da00] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, avfoundation, from '1:0':
Duration: N/A, start: 11734.092500, bitrate: 2822 kb/s
Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 2880x1800, 1000k tbr, 1000k tbn, 1000k tbc
Stream #0:1: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s
File 'out.mkv' already exists. Overwrite ? [y/N] y
No pixel format specified, yuv422p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0x7fca1390e000] MB rate (20340000000) > level limit (2073600)
[libx264 @ 0x7fca1390e000] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fca1390e000] profile High 4:2:2, level 5.2, 4:2:2 8-bit
[libx264 @ 0x7fca1390e000] 264 - core 148 r2601 a0cd7d3 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=12 lookahead_threads=2 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
Output #0, matroska, to 'out.mkv':
Metadata:
encoder : Lavf56.40.101
Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv422p, 2880x1800, q=-1--1, 1000k fps, 1k tbn, 1000k tbc
Metadata:
encoder : Lavc56.60.100 libx264
Stream #0:1: Audio: vorbis (libvorbis) (oV[0][0] / 0x566F), 44100 Hz, stereo, fltp
Metadata:
encoder : Lavc56.60.100 libvorbis
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (pcm_f32le (native) -> vorbis (libvorbis))
Press [q] to stop, [?] for help
frame= 969 fps= 29 q=-1.0 Lsize= 6911kB time=00:00:34.80 bitrate=1626.8kbits/s
video:6475kB audio:396kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 0.591309%
[libx264 @ 0x7fca1390e000] frame I:4 Avg QP:15.77 size:1461092
[libx264 @ 0x7fca1390e000] frame P:246 Avg QP:16.00 size: 2608
[libx264 @ 0x7fca1390e000] frame B:719 Avg QP:13.91 size: 200
[libx264 @ 0x7fca1390e000] consecutive B-frames: 0.9% 0.4% 0.0% 98.7%
[libx264 @ 0x7fca1390e000] mb I I16..4: 11.6% 43.3% 45.2%
[libx264 @ 0x7fca1390e000] mb P I16..4: 0.0% 0.0% 0.1% P16..4: 0.4% 0.0% 0.0% 0.0% 0.0% skip:99.5%
[libx264 @ 0x7fca1390e000] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.2% 0.0% 0.0% direct: 0.0% skip:99.8% L0:39.9% L1:60.0% BI: 0.1%
[libx264 @ 0x7fca1390e000] 8x8 transform intra:41.6% inter:38.8%
[libx264 @ 0x7fca1390e000] coded y,uvDC,uvAC intra: 76.9% 77.9% 75.5% inter: 0.0% 0.1% 0.0%
[libx264 @ 0x7fca1390e000] i16 v,h,dc,p: 51% 34% 11% 4%
[libx264 @ 0x7fca1390e000] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 17% 19% 7% 4% 3% 8% 5% 16%
[libx264 @ 0x7fca1390e000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 24% 10% 7% 6% 5% 8% 7% 12%
[libx264 @ 0x7fca1390e000] i8c dc,h,v,p: 59% 14% 18% 9%
[libx264 @ 0x7fca1390e000] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7fca1390e000] ref P L0: 71.5% 3.4% 13.0% 12.1%
[libx264 @ 0x7fca1390e000] ref B L0: 46.6% 52.3% 1.1%
[libx264 @ 0x7fca1390e000] ref B L1: 95.1% 4.9%
[libx264 @ 0x7fca1390e000] kb/s:1525.48and Screen 1 :
User@User-MacBook-Pro:~/test$ ffmpeg -f avfoundation -i "2:0" out.mkv
ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 7.0.2 (clang-700.1.81)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 --enable-nonfree --enable-vda
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
[avfoundation @ 0x7fc2e900da00] Selected pixel format (yuv420p) is not supported by the input device.
[avfoundation @ 0x7fc2e900da00] Supported pixel formats:
[avfoundation @ 0x7fc2e900da00] uyvy422
[avfoundation @ 0x7fc2e900da00] yuyv422
[avfoundation @ 0x7fc2e900da00] nv12
[avfoundation @ 0x7fc2e900da00] 0rgb
[avfoundation @ 0x7fc2e900da00] bgr0
[avfoundation @ 0x7fc2e900da00] Overriding selected pixel format to use uyvy422 instead.
[avfoundation @ 0x7fc2e900da00] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, avfoundation, from '2:0':
Duration: N/A, start: 11809.126333, bitrate: 2822 kb/s
Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 2560x1080, 1000k tbr, 1000k tbn, 1000k tbc
Stream #0:1: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s
File 'out.mkv' already exists. Overwrite ? [y/N] y
No pixel format specified, yuv422p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0x7fc2ea82ac00] MB rate (10880000000) > level limit (2073600)
[libx264 @ 0x7fc2ea82ac00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fc2ea82ac00] profile High 4:2:2, level 5.2, 4:2:2 8-bit
[libx264 @ 0x7fc2ea82ac00] 264 - core 148 r2601 a0cd7d3 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=12 lookahead_threads=2 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
Output #0, matroska, to 'out.mkv':
Metadata:
encoder : Lavf56.40.101
Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv422p, 2560x1080, q=-1--1, 1000k fps, 1k tbn, 1000k tbc
Metadata:
encoder : Lavc56.60.100 libx264
Stream #0:1: Audio: vorbis (libvorbis) (oV[0][0] / 0x566F), 44100 Hz, stereo, fltp
Metadata:
encoder : Lavc56.60.100 libvorbis
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (pcm_f32le (native) -> vorbis (libvorbis))
Press [q] to stop, [?] for help
frame= 755 fps= 30 q=-1.0 Lsize= 1025kB time=00:00:26.65 bitrate= 315.1kbits/s
video:680kB audio:326kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 2.003084%
[libx264 @ 0x7fc2ea82ac00] frame I:4 Avg QP:13.22 size:145661
[libx264 @ 0x7fc2ea82ac00] frame P:191 Avg QP:19.87 size: 250
[libx264 @ 0x7fc2ea82ac00] frame B:560 Avg QP:28.31 size: 116
[libx264 @ 0x7fc2ea82ac00] consecutive B-frames: 1.1% 0.0% 0.4% 98.5%
[libx264 @ 0x7fc2ea82ac00] mb I I16..4: 54.5% 29.2% 16.2%
[libx264 @ 0x7fc2ea82ac00] mb P I16..4: 0.2% 0.1% 0.0% P16..4: 0.1% 0.0% 0.0% 0.0% 0.0% skip:99.6%
[libx264 @ 0x7fc2ea82ac00] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.3% 0.0% 0.0% direct: 0.0% skip:99.7% L0:69.2% L1:30.8% BI: 0.0%
[libx264 @ 0x7fc2ea82ac00] 8x8 transform intra:31.7% inter:13.1%
[libx264 @ 0x7fc2ea82ac00] coded y,uvDC,uvAC intra: 10.9% 8.8% 8.5% inter: 0.0% 0.0% 0.0%
[libx264 @ 0x7fc2ea82ac00] i16 v,h,dc,p: 69% 31% 0% 0%
[libx264 @ 0x7fc2ea82ac00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 5% 67% 0% 0% 0% 0% 0% 0%
[libx264 @ 0x7fc2ea82ac00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38% 25% 14% 3% 3% 4% 5% 4% 5%
[libx264 @ 0x7fc2ea82ac00] i8c dc,h,v,p: 92% 3% 4% 0%
[libx264 @ 0x7fc2ea82ac00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7fc2ea82ac00] ref P L0: 76.3% 1.7% 16.8% 5.2%
[libx264 @ 0x7fc2ea82ac00] ref B L0: 38.9% 56.9% 4.2%
[libx264 @ 0x7fc2ea82ac00] ref B L1: 97.3% 2.7%
[libx264 @ 0x7fc2ea82ac00] kb/s:208.84EDIT
The main differences between the two (lengthy) outputs above via
wdiff -n output1 output2 |colordiffis the resolution (
[-2880x1800,-] {+2560x1080,+}) and the resulting MB rate ([-(20340000000)-] {+(10880000000)+}). So, what could increase the performance offfmpeg? -
i use vitamio-ffmpeg achieve filters function,who can help me to see [on hold]
30 décembre 2015, par 陈腾明my cmd is :
ffmpeg -y -i /storage/emulated/0/Foream/a.mp4 -i /storage/emulated/0/Foream/q.jpg -filter_complex [0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out] -map [out] -map 0:a -codec:a copy /storage/test.mp4-
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
built on Dec 30 2015 17:40:40 with gcc 4.8 (GCC)
configuration: --arch=arm --disable-runtime-cpudetect --target-os=linux --enable-cross-compile --cross-prefix=arm-linux-androideabi- --enable-version3 --enable-optimizations --enable-shared --disable-fast-unaligned --disable-static --disable-symver --disable-programs --disable-doc --disable-avdevice --disable-postproc --disable-encoders --disable-muxers --enable-muxer=mp4 --disable-devices --disable-demuxer=sbg --disable-demuxer=dts --disable-parser=dca --disable-decoder=dca --disable-decoder=svq3 --disable-debug --enable-network --enable-asm --prefix=/var/vitamio/FFmpeg-Vitamio-vitamio/build/android/armv6 --extra-cflags='-mthumb -std=c99 -O3 -Wall -pipe -fpic -fasm -finline-limit=300 -ffast-math -fstrict-aliasing -Werror=strict-aliasing -Wno-psabi -Wa,--noexecstack -fdiagnostics-color=always -DANDROID -DNDEBUG -I/var/openssl/OpenSSL-Vitamio-master/include -D__ARM_ARCH_5__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -march=armv6 -msoft-float' --extra-ldflags='-lm -lz -Wl,--no-undefined -Wl,-z,no WARNING: library configuration mismatch
avutil configuration: --arch=arm --disable-runtime-cpudetect --target-os=linux --cross-prefix=arm-linux-androideabi- --enable-cross-compile --enable-version3 --enable-shared --disable-static --disable-symver --disable-programs --disable-doc --disable-avdevice --disable-encoders --disable-muxers --disable-devices --disable-everything --disable-protocols --disable-demuxers --disable-decoders --disable-bsfs --disable-debug --enable-optimizations --enable-filters --enable-parsers --disable-parser=hevc --enable-swscale --enable-network --enable-protocol=file --enable-protocol=http --enable-protocol=rtmp --enable-protocol=rtp --enable-protocol=mmst --enable-protocol=mmsh --enable-protocol=crypto --enable-protocol=hls --enable-demuxer=hls --enable-demuxer=mpegts --enable-demuxer=mpegtsraw --enable-demuxer=mpegvideo --enable-demuxer=concat --enable-demuxer=mov --enable-demuxer=flv --enable-demuxer=rtsp --enable-demuxer=mp3 --enable-demuxer=matroska --enable-decoder=mpeg4 --enable-decoder=mpegvideo --enable-de avcodec configuration: --arch=arm --disable-runtime-cpudetect—target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de avformat configuration : —arch=arm —disable-runtime-cpudetect
— target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de avfilter configuration : —arch=arm —disable-runtime-cpudetect
— target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de swscale configuration : —arch=arm —disable-runtime-cpudetect
— target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de swresample configuration : —arch=arm —disable-runtime-cpudetect
— target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de libavutil 52. 48.100 / 52. 48.100
libavcodec 55. 39.100 / 55. 39.100
libavformat 55. 19.104 / 55. 19.104
libavfilter 3. 90.100 / 3. 90.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
Splitting the commandline.
Reading option ’-y’ ... matched as option ’y’ (overwrite output files) with argument ’1’.
Reading option ’-i’ ... matched as input file with argument ’/storage/emulated/0/Foream/a.mp4’.
Reading option ’-i’ ... matched as input file with argument ’/storage/emulated/0/Foream/q.jpg’.
Reading option ’-filter_complex’ ... matched as option ’filter_complex’ (create a complex filtergraph) with argument
’[0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out]’.
Reading option ’-map’ ... matched as option ’map’ (set input stream mapping) with argument ’[out]’.
Reading option ’-map’ ... matched as option ’map’ (set input stream mapping) with argument ’0:a’.
Reading option ’-codec:a’ ... matched as option ’codec’ (codec name) with argument ’copy’.
Reading option ’/storage/emulated/0/Foream/test.mp4’ ... matched as output file.
Finished splitting the commandline.
Parsing a group of options : global .
Applying option y (overwrite output files) with argument 1.
Applying option filter_complex (create a complex filtergraph) with argument
[0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out].
Successfully parsed a group of options.
Parsing a group of options : input file /storage/emulated/0/Foream/a.mp4.
Successfully parsed a group of options.
Opening an input file : /storage/emulated/0/Foream/a.mp4.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] ISO : File Type Major Brand : mp42
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] File position before avformat_find_stream_info() is 810040
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] All info found
rfps : 29.416667 0.016512
rfps : 29.416667 0.016512
rfps : 29.500000 0.012847
rfps : 29.500000 0.012847
rfps : 29.583333 0.009693
rfps : 29.666667 0.007050
rfps : 29.750000 0.004918
rfps : 29.833333 0.003298
rfps : 29.916667 0.002188
rfps : 30.000000 0.001590
rfps : 30.083333 0.001503
rfps : 30.166667 0.001928
rfps : 30.250000 0.002863
rfps : 30.333333 0.004310
rfps : 30.333333 0.004310
rfps : 30.416667 0.006268
rfps : 30.416667 0.006268
rfps : 30.500000 0.008737
rfps : 30.500000 0.008737
rfps : 30.583333 0.011717
rfps : 30.583333 0.011717
rfps : 30.666667 0.015208
rfps : 30.666667 0.015208
rfps : 30.750000 0.019211
rfps : 30.750000 0.019211
rfps : 59.500000 0.019673
rfps : 59.583333 0.016176
rfps : 59.666667 0.013191
rfps : 59.750000 0.010716
rfps : 59.833333 0.008753
rfps : 59.916667 0.007302
rfps : 60.000000 0.006361
rfps : 29.970030 0.001747
rfps : 59.940060 0.006986
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] File position after avformat_find_stream_info() is 1684954
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’/storage/emulated/0/Foream/a.mp4’ :
Metadata :
major_brand : mp42minor_version : 0
compatible_brands: isommp42
creation_time : 2015-11-07 12:30:11
location : +22.5935+113.8685/
location-eng : +22.5935+113.8685/
Duration: 00:00:17.24 , start:0.000000 , bitrate : 9934 kb/s
Stream #0:0 (eng) , 21, 1/90000 : Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 9488 kb/s , SAR65536:65536 DAR 16:9 , 29.61 fps , 30.08 tbr , 90k tbn , 50 tbc
(default)Metadata:
rotate : 90
creation_time : 2015-11-07 12:30:11
handler_name : VideoHandle
Stream #0:1 (eng) , 49, 1/48000 : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s (default)
Metadata:
creation_time : 2015-11-07 12:30:11
handler_name : SoundHandle
Successfully opened the file.
Parsing a group of options: input file /storage/emulated/0/Foream/q.jpg.
Successfully parsed a group of options.
Opening an input file: /storage/emulated/0/Foream/q.jpg.
[mp3 @ 0xb924f040] Format mp3 detected only with low score of 1, misdetection possible!
[mp3 @ 0xb924f040] File position before avformat_find_stream_info() is 0
[mp3 @ 0xb9216ef0] Header missing
[mp3 @ 0xb9216ef0] Header missing
[mp3 @ 0xb9216ef0] Header missing
[mp3 @ 0xb924f040] decoding for stream 0 failed
[mp3 @ 0xb924f040] Could not find codec parameters for stream 0 (Audio: mp1, 0 channels, s16p): unspecified frame size Considerincreasing the value for the ’analyzeduration’ and ’probesize’
options
[mp3 @ 0xb924f040] File position after avformat_find_stream_info() is 9590
/storage/emulated/0/Foream/q.jpg : could not find codec parameters
[AVIOContext @ 0xb9251990] Statistics : 9590 bytes read, 0 seeks
[AVIOContext @ 0xb923e090] Statistics : 907698 bytes read, 1 seeks
-
-
How to pipe sequence of thumbnails/screenshots from ffmpeg to nodejs for further processing ?
30 décembre 2015, par Dmitry IvanovWhat I want to achieve is to take screenshots continuously and pass them to nodejs application in order to process each one separately and do some other stuff. I need this for Linux environment only. I picked
ffmpegwithx11grabas a screenshots provider. The following command works just fine :ffmpeg -t 10 -s 1366x768 -f x11grab -i :0.0+0,0 -vf fps=30 output_%d.png -yIt creates 300 consequent frames of my screen during 10 seconds period. Then I want to redirect the output to my nodejs app rather than just to write files on the hard drive. So I’m calling
ffmpegfrom node :var spawn = require('child_process').spawn,
fps = 30,
duration = 10,
screenSize = {w: 1366, h: 768},
args = [
'-t',
duration,
'-s',
screenSize.w + 'x' + screenSize.h,
'-f',
'x11grab',
'-i',
':0.0',
'-vf',
'fps=' + fps,
'-f',
'mjpeg',
'pipe:1'
],
ff = spawn('ffmpeg', args);
ff.stdout.on('data', function (data) {
console.log('Data size: ' + data.length);
});
ff.stdout.on('end', function (data) {
console.log('Stream end');
});
ff.stderr.on('data', function (data) {
console.log('ff error: ' + data);
});I apologize for a long log, but it’s important :
ff error: ffmpeg version N-77455-g4707497 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libdcadec --enable-libfreetype --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvo-aacenc --enable-libvidstab
libavutil 55. 11.100 / 55. 11.100
libavcodec 57. 20.100 / 57. 20.100
libavformat 57. 20.100 / 57. 20.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 21.101 / 6. 21.101
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
ff error: Input #0, x11grab, from ':0.0':
Duration: N/A, start: 1451414448.216650, bitrate: N/A
Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1366x768, 29.97 fps, 29.97 tbr, 1000k tbn,
ff error: 29.97 tbc
ff error: [swscaler @ 0x34238a0] deprecated pixel format used, make sure you did set range correctly
ff error: Output #0, mjpeg, to 'pipe:1':
Metadata:
encoder :
ff error: Lavf57.20.100
Stream #0:0: Video: mjpeg, yuvj444p(pc), 1366x768, q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc
Metadata:
encoder : Lavc57.20.100 mjpeg
Side data:
unknown side data type 10 (24 bytes)
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
ff error: [swscaler @ 0x34238a0] Warning: data is not aligned! This can lead to a speedloss
Data size: 65536
Data size: 65536
Data size: 21413
Data size: 65536
Data size: 65536
Data size: 45581
Data size: 65536
Data size: 65536
Data size: 62377
Data size: 65536
Data size: 65536
Data size: 45581
Data size: 65536
Data size: 65536
Data size: 21413
Data size: 65536
Data size: 60933
Data size: 65536
Data size: 49550
Data size: 65536
Data size: 36709
Data size: 65536
Data size: 27035
Data size: 65536
Data size: 20131
Data size: 65536
Data size: 15887
Data size: 65536
Data size: 15887
Data size: 65536
Data size: 15887
Data size: 65536
Data size: 15911
Data size: 65536
Data size: 15911
Data size: 65536
Data size: 15911
ff error: frame= 16 fps=0.0 q=24.8 size= 1819kB time=00:00:00.53 bitrate=27935.6kbits/s speed=1.04x
Data size: 65536
Data size: 15911
Data size: 65536
Data size: 15911
Data size: 65536
Data size: 15919
Data size: 65536
Data size: 15919
Data size: 65536
Data size: 15919
Data size: 65536
Data size: 15919
Data size: 65536
Data size: 15919
Data size: 65536
Data size: 15911
Data size: 65536
Data size: 15911
Data size: 65536
Data size: 15906
Data size: 65536
Data size: 15906
Data size: 65536
Data size: 15917
Data size: 65536
Data size: 15999
Data size: 65536
Data size: 15949
Data size: 65536
Data size: 15997
Data size: 65536
Data size: 15965
ff error: frame= 32 fps= 30 q=24.8 size= 3092kB time=00:00:01.06 bitrate=23743.7kbits/s speed=1.01x
Data size: 65536
Data size: 16025
Data size: 65536
Data size: 15978
Data size: 65536
Data size: 15963
Data size: 65536
Data size: 16028
Data size: 65536
Data size: 15976
Data size: 65536
Data size: 15958
Data size: 65536
Data size: 15940
Data size: 65536
Data size: 15992
Data size: 65536
Data size: 15962
Data size: 65536
Data size: 16010
Data size: 65536
Data size: 15941
Data size: 65536
Data size: 15941
Data size: 65536
Data size: 15973
Data size: 65536
Data size: 15943
Data size: 65536
Data size: 15947
Data size: 65536
Data size: 15947
ff error: frame= 48 fps= 30 q=24.8 size= 4365kB time=00:00:01.60 bitrate=22349.6kbits/s speed=1.01x
Data size: 65536
Data size: 15982
Data size: 65536
Data size: 15982
Data size: 65536
Data size: 15956
Data size: 65536
Data size: 15956
Data size: 65536
Data size: 15956
Data size: 65536
Data size: 16001
Data size: 65536
Data size: 15930
Data size: 65536
Data size: 15922
Data size: 65536
Data size: 15924
Data size: 65536
Data size: 15924
Data size: 65536
Data size: 15924
Data size: 65536
Data size: 15924
Data size: 65536
Data size: 15911
Data size: 65536
Data size: 15924
Data size: 65536
Data size: 15985
Data size: 65536
Data size: 15985
ff error: frame= 64 fps= 30 q=24.8 size= 5638kB time=00:00:02.13 bitrate=21651.3kbits/s speed=1.01x
Data size: 65536
Data size: 15985
Data size: 65536
Data size: 15924
Data size: 65536
Data size: 15976
Data size: 65536
Data size: 15976
Data size: 65536
Data size: 15958
Data size: 65536
Data size: 16319
Data size: 65536
Data size: 16558
Data size: 65536
Data size: 16576
Data size: 65536
Data size: 16564
Data size: 65536
Data size: 16582
Data size: 65536
Data size: 16589
Data size: 65536
Data size: 16587
Data size: 65536
Data size: 16446
Data size: 65536
Data size: 16450
Data size: 65536
Data size: 16450
Data size: 65536
Data size: 16450
ff error: frame= 80 fps= 30 q=24.8 size= 6918kB time=00:00:02.66 bitrate=21251.0kbits/s speed=1.01x
Data size: 65536
Data size: 16568
Data size: 65536
Data size: 16575
Data size: 65536
Data size: 16585
Data size: 65536
Data size: 18182
Data size: 65536
Data size: 17203
Data size: 65536
Data size: 16769
Data size: 65536
Data size: 16734
Data size: 65536
Data size: 16823
Data size: 65536
Data size: 16338
Data size: 65536
Data size: 16455
Data size: 65536
Data size: 16406
Data size: 65536
Data size: 16645
Data size: 65536
Data size: 16800
Data size: 65536
Data size: 16800
Data size: 65536
Data size: 16800
Data size: 65536
Data size: 16806
ff error: frame= 96 fps= 30 q=24.8 size= 8204kB time=00:00:03.20 bitrate=21001.8kbits/s speed= 1x
Data size: 65536
Data size: 16795
Data size: 65536
Data size: 16804
Data size: 65536
Data size: 16770
Data size: 65536
Data size: 16760
Data size: 65536
Data size: 16813
Data size: 65536
Data size: 16445
Data size: 65536
Data size: 16259
Data size: 65536
Data size: 16260
Data size: 65536
Data size: 16265
Data size: 65536
Data size: 16284
Data size: 65536
Data size: 16233
Data size: 65536
Data size: 16233
Data size: 65536
Data size: 16182
Data size: 65536
Data size: 16058
Data size: 60561
ff error: frame= 111 fps= 30 q=24.8 size= 9384kB time=00:00:03.70 bitrate=20776.1kbits/s speed= 1x
Data size: 61813
Data size: 61813
Data size: 61813
Data size: 61813
Data size: 61813
Data size: 61781
Data size: 61784
Data size: 61796
Data size: 61842
Data size: 61839
Data size: 61793
Data size: 61810
Data size: 61844
Data size: 61844
Data size: 61850
Data size: 61841
ff error: frame= 127 fps= 30 q=24.8 size= 10350kB time=00:00:04.23 bitrate=20027.8kbits/s speed= 1x
Data size: 61858
Data size: 61853
Data size: 61833
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
ff error: frame= 142 fps= 30 q=24.8 size= 11256kB time=00:00:04.73 bitrate=19480.5kbits/s speed= 1x
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
ff error: frame= 158 fps= 30 q=24.8 size= 12223kB time=00:00:05.26 bitrate=19011.4kbits/s speed= 1x
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61867
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
ff error: frame= 173 fps= 30 q=24.8 size= 13129kB time=00:00:05.76 bitrate=18650.3kbits/s speed= 1x
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
ff error: frame= 188 fps= 30 q=24.8 size= 14035kB time=00:00:06.26 bitrate=18346.6kbits/s speed= 1x
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
ff error: frame= 203 fps= 30 q=24.8 size= 14941kB time=00:00:06.76 bitrate=18087.8kbits/s speed= 1x
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
ff error: frame= 219 fps= 30 q=24.8 size= 15907kB time=00:00:07.30 bitrate=17850.8kbits/s speed= 1x
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
ff error: frame= 234 fps= 30 q=24.8 size= 16813kB time=00:00:07.80 bitrate=17658.1kbits/s speed= 1x
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
Data size: 61850
ff error: frame= 250 fps= 30 q=24.8 size= 17780kB time=00:00:08.33 bitrate=17478.0kbits/s speed= 1x
Data size: 61850
Data size: 61712
Data size: 61712
Data size: 61712
Data size: 61712
Data size: 61712
Data size: 61712
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
ff error: frame= 265 fps= 30 q=24.8 size= 18675kB time=00:00:08.83 bitrate=17319.4kbits/s speed= 1x
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
ff error: frame= 280 fps= 30 q=24.8 size= 19563kB time=00:00:09.33 bitrate=17171.2kbits/s speed= 1x
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
ff error: frame= 295 fps= 30 q=24.8 size= 20452kB time=00:00:09.83 bitrate=17038.0kbits/s speed= 1x
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
Data size: 60638
ff error: frame= 300 fps= 30 q=24.8 Lsize= 20748kB time=00:00:10.00 bitrate=16996.6kbits/s speed=0.998x
video:20748kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
Stream endThe error messages are weird too, but not the biggest problem for now, so let’s omit them.
Looking at all the data coming from
ffmpegI assume that the images are coming as a single stream without any separation. I don’t think that looking into binary data and seeking for certain flag bytes is a good idea to solve the problem and separate the images. The command line I mentioned in the top of the post does separate writes to hard drive that means it produces separate writable streams per each screenshot. And it doesn’t do so for a spawned process from nodejs.What am I missing ?
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