FFMPEG无法将mov转换为flv

Question

我不熟悉的FFMPEG问题。似乎只发生在这个特定的文件。任何人都可以通过任何机会看看这个长期出局并提供任何可能导致这种情况的反馈吗？

ffmpeg_18.exe -i "E:\TESTFILES\115637.mov" -vcodec libx264 -b:v 700k -s 720x480 -r 29.97 -pix_fmt yuv420p -vf yadif -aspect 4:3 -acodec libvo_aacenc -b:a 96k -ar 44100 -f mp4 -y "E:\TESTFILES\test\115637.flv"
ffmpeg version N-39877-g4fa706a Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr 16 2012 14:53:47 with gcc 4.6.3
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-li
bnut --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      51. 46.100 / 51. 46.100
  libavcodec     54. 14.101 / 54. 14.101
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 70.100 /  2. 70.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 11.100 /  0. 11.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\TESTFILES\115637.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2018-05-03 20:48:28
  Duration: 00:00:30.03, start: 0.000000, bitrate: 154663 kb/s
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 151585 kb/s, SAR 1920:1920 DAR 16:9, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc
    Metadata:
      creation_time   : 2018-05-03 20:48:28
      handler_name    : Apple Alias Data Handler
    Stream #0:1(eng): Audio: pcm_s16le (lpcm / 0x6D63706C), 48000 Hz, 4 channels, s16, 3072 kb/s
    Metadata:
      creation_time   : 2018-05-03 20:48:28
      handler_name    : Apple Alias Data Handler
    Stream #0:2(eng): Data: none (tmcd / 0x64636D74)
    Metadata:
      creation_time   : 2018-05-03 20:51:29
      handler_name    : Apple Alias Data Handler
      timecode        : 00:00:00;00
[buffer @ 035c33a0] w:1920 h:1080 pixfmt:yuv420p tb:1/1000000 sar:1920/1920 sws_param:flags=2
[yadif @ 01e7caa0] mode:0 parity:-1 auto_enable:0
[scale @ 01e7c6a0] w:1920 h:1080 fmt:yuv420p sar:1920/1920 -> w:720 h:480 fmt:yuv420p sar:32/27 flags:0x4
[libx264 @ 035b8c40] using SAR=8/9
[libx264 @ 035b8c40] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX FMA3
[libx264 @ 035b8c40] profile High, level 3.0
[libx264 @ 035b8c40] 264 - core 120 r2164 da19765 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=24 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=abr mbtree=1 bitra
te=700 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[libvo_aacenc @ 01e7bae0] Unable to set encoding parameters
Output #0, mp4, to 'E:\TESTFILES\test\115637.flv':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2018-05-03 20:48:28
    Stream #0:0(eng): Video: h264, yuv420p, 720x480 [SAR 8:9 DAR 4:3], q=-1--1, 700 kb/s, 90k tbn, 29.97 tbc
    Metadata:
      creation_time   : 2018-05-03 20:48:28
      handler_name    : Apple Alias Data Handler
    Stream #0:1(eng): Audio: aac, 44100 Hz, 4 channels, s16, 96 kb/s
    Metadata:
      creation_time   : 2018-05-03 20:48:28
      handler_name    : Apple Alias Data Handler
Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> libx264)
  Stream #0:1 -> #0:1 (pcm_s16le -> libvo_aacenc)
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

Answer 1

您的import * as firebase from 'firebase'; import Home from './home'; export default class Login extends React.Component { constructor(props){ super(props) this.state = { isLoggingIn: true, authFlag: false, } } componentDidMount() { //error is on the following line firebase.auth().onAuthStateChanged((user) => { if(!this.state.authFlag){ this.setState({ authFlag: true }) //persistent success, take user to Home if(user){ this.props.navigation.navigate('Home'); return; } //user hasn't logged in before, must log in else{ this.setState({isLoggingIn: false}); return; } } }); } } 真的很旧

您可以在Zeranoe获取适用于Windows的最新版本。

libvo_aacenc很糟糕

它已从ffmpeg年前删除。质量很差，无法处理超过2个频道。改为使用内置的AAC编码器：

ffmpeg

• 此示例使用ffmpeg -i input.mov -c:v libx264 -crf 23 -preset medium -vf "yadif,scale=-2:720,format=yuv420p" -c:a aac -ac 2 -b:a 96k output.flv 选项将您的4声道输入缩混为2声道（立体声）。
• 有关视频编码信息，请参阅FFmpeg Wiki: H.264。