linux 中的 Mencoder 错误 - 合并两个具有相同 fps、分辨率以及视频和音频编解码器的视频文件失败。
这些视频文件具有不同的 fps 比率、视频编解码器和音频编解码器，但分辨率相同。我通过每个视频使用以下 ffmpeg 命令行使它们具有相同的编解码器：
ffmpeg -i D1_vid.mp4 -c:v libx264 -refs 3 -x264-params b-pyramid=2 -acodec aac -b:a 327680 D1_video.mp4
然而，即使我根据 MediaInfo 让它们在许多其他方面具有相同的方面（例如参考帧），它们也未能在 Mencoder 下合并：
` mencoder -oac pcm -ovc copy -o video_out.avi D1_video.mp4 D2_video.mp4
这是不同的整体比特率？我如何解决维持 Linux 中 MediaInfo 呈现的所有其他方面的问题？
Mencoder 输出
MEncoder 1.3.0 (Debian), built with gcc-7 (C) 2000-2016 MPlayer Team
success: format: 0 data: 0x0 - 0x2be37eba
libavformat version 57.83.100 (external)
libavformat file format detected.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f70ecf872a0]Protocol name not provided, cannot determine if input is local or a network protocol, buffers and access patterns cannot be configured optimally without knowing the protocol
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (aac), -aid 0, -alang und
VIDEO: [H264] 1280x720 24bpp 29.583 fps 4278.2 kbps (522.2 kbyte/s)
[V] filefmt:44 fourcc:0x34363248 size:1280x720 fps:29.583 ftime:=0.0338
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
libavcodec version 57.107.100 (external)
AUDIO: 48000 Hz, 1 ch, floatle, 239.1 kbit/15.57% (ratio: 29890->192000)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
videocodec: framecopy (1280x720 24bpp fourcc=34363248)
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Pos:1301.6s 38506f (99%) 1492.89fps Trem: 0min 784mb A-V:0.020 [4278:767]
success: format: 0 data: 0x0 - 0x208dfde4
libavformat file format detected.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f70ecf872a0]Protocol name not provided, cannot determine if input is local or a network protocol, buffers and access patterns cannot be configured optimally without knowing the protocol
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (aac), -aid 0, -alang eng
VIDEO: [H264] 1280x720 24bpp 29.583 fps 3085.4 kbps (376.6 kbyte/s)
[V] filefmt:44 fourcc:0x34363248 size:1280x720 fps:29.583 ftime:=0.0338
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 1 ch, floatle, 220.0 kbit/14.32% (ratio: 27498->192000)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
videocodec: framecopy (1280x720 24bpp fourcc=34363248)
videocodec: framecopy (1280x720 24bpp fourcc=34363248)
All video files must have identical fps, resolution, and codec for -ovc copy.