从 java 中执行的 shellscript 运行时 ffmpeg 中的段错误

Question

我知道有一些问题涉及这个主题，但没有一个问题可以帮助我解决我的问题。

目的：

将从队列中拍摄的视频从 .mov 转码为 h.264（目前仅此）

解决方案：

构建一个 java 应用程序，获取队列中的下一个，对其进行转码然后重复

问题：

我编写了一个要执行的脚本ffmpeg 正确地从 java 运行（使用 ProcessBuilder）。

脚本在控制台中运行没有问题，但使用 java 运行会在 ffmpeg 中出现 Seg 错误。java

中的代码：

ProcessBuilder pb = new ProcessBuilder("./ffmpeg-convert.sh",folder + recID);
pb.redirectErrorStream(true);
Process p = pb.start();

在脚本文件中：

#!/bin/sh

echo Running script with argument: $*;

./ffmpeg/ffmpeg -i $1.mov -vcodec libx264 -fpre /ffmpeg/ffpresets/libx264-slow.ffpreset $1.flv >/tmp/trace.txt 2>&1 </dev/null

并在trace.txt 中输出：

FFmpeg version git-d23845f, Copyright (c) 2000-2011 the FFmpeg developers
  built on Feb  9 2011 17:51:49 with gcc 4.4.3
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-x11grab --enable-libvpx --enable-libmp3lame
  libavutil    50. 37. 0 / 50. 37. 0
  libavcore     0. 16. 1 /  0. 16. 1
  libavcodec   52.112. 0 / 52.112. 0
  libavformat  52. 98. 0 / 52. 98. 0
  libavdevice  52.  2. 3 / 52.  2. 3
  libavfilter   1. 75. 0 /  1. 75. 0
  libswscale    0. 12. 0 /  0. 12. 0
  libpostproc  51.  2. 0 / 51.  2. 0

Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 40.00 (40/1)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/javarecorder/0896dd9e926a5852e5c7317ff5e91cd1446996dd.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2011-09-26 19:32:24
  Duration: 00:08:32.47, start: 0.000000, bitrate: 7344 kb/s
    Stream #0.0(eng): Video: qtrle, rgb24, 1280x800, 6638 kb/s, 8.08 fps, 40 tbr, 1k tbn, 1k tbc
    Metadata:
      creation_time   : 2011-09-26 19:32:24
    Stream #0.1(eng): Audio: pcm_s16be, 44100 Hz, 1 channels, s16, 705 kb/s
    Metadata:
      creation_time   : 2011-09-26 19:32:24
[buffer @ 0x432e050] w:1280 h:800 pixfmt:rgb24
[ffsink @ 0x4382740] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 0x4382a40] w:1280 h:800 fmt:rgb24 -> w:1280 h:800 fmt:yuv420p flags:0xa0000004
[libx264 @ 0x4375590] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0x4375590] profile High, level 3.2
[libx264 @ 0x4375590] 264 - core 114 r1900 60ef1f8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=abr mbtree=1 bitrate=200 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.41 aq=1:1.00
Output #0, flv, to '/var/www/javarecorder/0896dd9e926a5852e5c7317ff5e91cd1446996dd.flv':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2011-09-26 19:32:24
    encoder         : Lavf52.98.0
    Stream #0.0(eng): Video: libx264, yuv420p, 1280x800, q=0-69, 200 kb/s, 1k tbn, 40 tbc
    Metadata:
      creation_time   : 2011-09-26 19:32:24
    Stream #0.1(eng): Audio: libmp3lame, 44100 Hz, 1 channels, s16, 64 kb/s
    Metadata:
      creation_time   : 2011-09-26 19:32:24
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Press [q] to stop encoding
Segmentation fault

Answer 1

缺少的是使用“-Xms64m -Xmx64m”运行java。显然我错过了用这些来运行应用程序：P