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VP8 和 WebM 在 ffmpeg-php 中不起作用

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VP8 和 WebM 在 ffmpeg-php 中不起作用

我需要 ffmpeg-php 和 Ffmpeg 的帮助。

ffmpeg：

ffmpeg version 1.0.git
built on Oct  6 2012 01:54:50 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3
libavutil      51. 73.102 / 51. 73.102
libavcodec     54. 63.100 / 54. 63.100
libavformat    54. 29.105 / 54. 29.105
libavdevice    54.  3.100 / 54.  3.100
libavfilter     3. 19.102 /  3. 19.102
libswscale      2.  1.101 /  2.  1.101
libswresample   0. 16.100 /  0. 16.100
libpostproc    52.  1.100 / 52.  1.100

Ffmpeg-PHP

FFmpeg 0.6.5
libavutil     50.15. 1 / 50.15. 1
libavcodec    52.72. 2 / 52.72. 2
libavformat   52.64. 2 / 52.64. 2
libavdevice   52. 2. 0 / 52. 2. 0
libavfilter    1.19. 0 /  1.19. 0
libswscale     0.11. 0 /  0.11. 0
libpostproc   51. 2. 0 / 51. 2. 0

FFMPEG-PHP 命令：

ffmpeg -y -i /f1ccd3a27d36270492ce660da358b436.mp4 -t 99 -f webm /f1ccd3a27d36270492ce660da358b436.webm

FFMPEG（SSH）命令：

ffmpeg -y -i /f1ccd3a27d36270492ce660da358b436.mp4 -t 99 -f webm /f1ccd3a27d36270492ce660da358b436.webm

FFMPEG-PHP 输出：

FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
  built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6)
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
  libavutil     50.15. 1 / 50.15. 1
  libavcodec    52.72. 2 / 52.72. 2
  libavformat   52.64. 2 / 52.64. 2
  libavdevice   52. 2. 0 / 52. 2. 0
  libavfilter    1.19. 0 /  1.19. 0
  libswscale     0.11. 0 /  0.11. 0
  libpostproc   51. 2. 0 / 51. 2. 0
Seems stream 1 codec frame rate differs from container frame rate: 59.94 (2997/50) -> 29.97 (30000/1001)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/f1ccd3a27d36270492ce660da358b436.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isomavc1mp42
  Duration: 00:04:16.32, start: 0.000000, bitrate: 650 kb/s
    Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16, 108 kb/s
    Stream #0.1(und): Video: h264, yuv420p, 480x360 [PAR 1:1 DAR 4:3], 539 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
Output #0, webm, to '/f1ccd3a27d36270492ce660da358b436.webm':
    Stream #0.0(und): Video: 0x0000, yuv420p, 480x360 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
    Stream #0.1(und): Audio: 0x0000, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
Encoder (codec id 146) not found for output stream #0.0

FFMPEG（SSH）输出：

ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
  built on Oct  6 2012 01:54:50 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
  configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3
  libavutil      51. 73.102 / 51. 73.102
  libavcodec     54. 63.100 / 54. 63.100
  libavformat    54. 29.105 / 54. 29.105
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 19.102 /  3. 19.102
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/f1ccd3a27d36270492ce660da358b436.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isomavc1mp42
    creation_time   : 2009-12-23 02:00:55
  Duration: 00:04:16.32, start: 0.000000, bitrate: 650 kb/s
    Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 108 kb/s
    Metadata:
      creation_time   : 2009-12-23 02:00:55
      handler_name    : (C) 2007 Google Inc. v08.13.2007.
    Stream #0:1(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 539 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
    Metadata:
      creation_time   : 2009-12-23 02:00:55
      handler_name    : (C) 2007 Google Inc. v08.13.2007.
[libvpx @ 0x2166e00] v1.1.0
Output #0, webm, to '/f1ccd3a27d36270492ce660da358b436.webm':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isomavc1mp42
    encoder         : Lavf54.29.105
    Stream #0:0(und): Video: vp8, yuv420p, 480x360 [SAR 1:1 DAR 4:3], q=-1--1, 200 kb/s, 1k tbn, 29.97 tbc
    Metadata:
      creation_time   : 2009-12-23 02:00:55
      handler_name    : (C) 2007 Google Inc. v08.13.2007.
    Stream #0:1(und): Audio: vorbis, 44100 Hz, stereo, flt
    Metadata:
      creation_time   : 2009-12-23 02:00:55
      handler_name    : (C) 2007 Google Inc. v08.13.2007.
Stream mapping:
  Stream #0:1 -> #0:0 (h264 -> libvpx)
  Stream #0:0 -> #0:1 (aac -> libvorbis)
Press [q] to stop, [?] for help
[libvorbis @ 0x2167340] Que input is backward in time
frame= 2968 fps= 61 q=0.0 Lsize=    4464kB time=00:01:39.03 bitrate= 369.3kbits/s
video:3068kB audio:1319kB subtitle:0 global headers:4kB muxing overhead 1.662821%

错误：

Encoder (codec id 146) not found for output stream #0.0

答案1

为了编码为 WebM，您需要编译libvpx支持该功能的 FFmpeg。您的 FFmpeg 1.0 具有此功能，您可以在编译标志中看到--enable-libvpx。

FFmpeg 从 0.6 开始，支持WebM：

此版本包含许多与 HTML5 视频相关的改进。[…] 此版本支持 Google 新发布的用于 VP8 编解码器和 WEBM 容器的 libvpx 库。

由于您运行的是 0.6.5，因此您可以使用 重新编译现有的旧版本libvpx，或者更好的是，升级到不超过两年且在此期间可能已修复数百个错误的较新版本。请注意，命令行语法多年来也发生了相当大的变化。

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