ffmpeg 无效缩放尺寸 - swScaler

发布于 2024-11-02 04:25:43 字数 982 浏览 6 评论 0原文

我在使用 ffmpeg 命令时遇到了 swScaler 的问题“swScaler：6x25 -> 6x25 无效缩放尺寸无法获取重采样上下文”。这是命令及其输出。

# ffmpeg  -i /var/www/site/tmp/cache/bc1a6321b7a595e928be9717edf43027/media.jpg test.bmp
FFmpeg version SVN-r24948, Copyright (c) 2000-2010 the FFmpeg developers
  built on Apr 15 2011 15:10:24 with gcc 4.2.4 (Ubuntu 4.2.4-1ubuntu4)
  configuration: 
  libavutil     50.24. 0 / 50.24. 0
  libavcore      0. 6. 0 /  0. 6. 0
  libavcodec    52.87. 0 / 52.87. 0
  libavformat   52.78. 3 / 52.78. 3
  libavdevice   52. 2. 1 / 52. 2. 1
  libavfilter    1.38. 1 /  1.38. 1
  libswscale     0.11. 0 /  0.11. 0
Input #0, image2, from '/var/www/site/tmp/cache/bc1a6321b7a595e928be9717edf43027/media.jpg':
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    Stream #0.0: Video: mjpeg, yuvj444p, 6x25 [PAR 72:72 DAR 6:25], 25 tbr, 25 tbn, 25 tbc
swScaler: 6x25 -> 6x25 is invalid scaling dimension
Cannot get resampling context

任何帮助将不胜感激。提前致谢

原文

i'm having this issue "swScaler: 6x25 -> 6x25 is invalid scaling dimension Cannot get resampling context" with swScaler while using an ffmpeg command.
here is the command and it's output.

# ffmpeg  -i /var/www/site/tmp/cache/bc1a6321b7a595e928be9717edf43027/media.jpg test.bmp
FFmpeg version SVN-r24948, Copyright (c) 2000-2010 the FFmpeg developers
  built on Apr 15 2011 15:10:24 with gcc 4.2.4 (Ubuntu 4.2.4-1ubuntu4)
  configuration: 
  libavutil     50.24. 0 / 50.24. 0
  libavcore      0. 6. 0 /  0. 6. 0
  libavcodec    52.87. 0 / 52.87. 0
  libavformat   52.78. 3 / 52.78. 3
  libavdevice   52. 2. 1 / 52. 2. 1
  libavfilter    1.38. 1 /  1.38. 1
  libswscale     0.11. 0 /  0.11. 0
Input #0, image2, from '/var/www/site/tmp/cache/bc1a6321b7a595e928be9717edf43027/media.jpg':
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    Stream #0.0: Video: mjpeg, yuvj444p, 6x25 [PAR 72:72 DAR 6:25], 25 tbr, 25 tbn, 25 tbc
swScaler: 6x25 -> 6x25 is invalid scaling dimension
Cannot get resampling context

any help will be appreciated.
thanks in advance

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╰沐子 2024-11-09 04:25:43

FFmpeg 不是将图像从一种格式转换为另一种格式的正确工具。 FFmpeg 适用于尺寸经常受到限制且不接受非常小的输入（例如 6 x 25）的视频。

更好的选择是 ImageMagick。等效的转换命令是：

convert input.jpg output.bmp

FFmpeg is not the right tool for converting images from one format to another. FFmpeg is geared towards videos that frequently have restrictions on their dimensions and won't accept very small input, e.g., 6 by 25.

A much better choice is ImageMagick. The equivalent conversion command would be: