如何使用mplayer获取媒体信息,长度,高宽,编码文件大小的信息 并显示...
发布网友
发布时间：2024-12-14 02:09
共2个回答
热心网友
时间：2024-12-14 04:03
使用 mplayer分析多媒体文件信息
mplayer -identify -frames 5 -endpos 0 -vo null YOU-FILE
MPlayer SVN-r29319-4.3.2 (C) 2000-2009 MPlayer Team
Playing onepiece.mp4.
libavformat file format detected.
ID_AUDIO_ID=0
[lavf] Audio stream found, -aid 0
ID_VIDEO_ID=1
[lavf] Video stream found, -vid 1
VIDEO: [avc1] 1280x720 24bpp 23.976 fps 0.0 kbps ( 0.0 kbyte/s)
ID_FILENAME=onepiece.mp4
ID_DEMUXER=lavfpref
ID_VIDEO_FORMAT=avc1
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=1280
ID_VIDEO_HEIGHT=720
ID_VIDEO_FPS=23.976
ID_VIDEO_ASPECT=0.0000
ID_AUDIO_FORMAT=255
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=44100
ID_AUDIO_NCH=2
[color=red]ID_LENGTH=629.98[/color]
ID_SEEKABLE=1
ID_CHAPTERS=0
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh2] vfm: ffmpeg (FFmpeg H.2)
==========================================================================
ID_VIDEO_CODEC=ffh2
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->1700)
ID_AUDIO_BITRATE=128000
ID_AUDIO_RATE=44100
ID_AUDIO_NCH=2
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio))
以上红色部分就是我们需要的常规视频信息
网上有：http://pypy.javaeye.com/blog/435103
热心网友
时间：2024-12-14 03:57
mplayer .rmvb
MPlayer SVN-r1.0~rc3+svn20090426-4.4.3 (C) 2000-2009 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing .rmvb.
REAL file format detected.
Stream description: Audio Stream
Stream mimetype: audio/x-pn-realaudio
[real] Audio stream found, -aid 0
Stream description: Video Stream
Stream mimetype: video/x-pn-realvideo
[real] Video stream found, -vid 1
Stream mimetype: logical-fileinfo
VIDEO: [RV40] 0x480 24bpp 23.000 fps 0.0 kbps ( 0.0 kbyte/s)
Clip info:
name: ����֮����Ļ�
author: Cc@����֮����Ļ�
copyright: ����֮����Ļ�
comment:
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
[VO_TDFXFB] Can't open /dev/fb0: Permission denied.
[VO_3DFX] Unable to open /dev/3dfx.
[ass] auto-open
Opening video filter: [screenshot=0]
[ass] Init
[ass] Updating font cache.
==========================================================================
Opening video decoder: [realvid] RealVideo decoder
Called unk__beginthreadex
Selected video codec: [rv3040win] vfm: realvid (Win32 RealPlayer 10 RV30/40)
==========================================================================
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->1700)
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
AO: [pulse] 44100Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 0 x 480 (preferred colorspace: Planar I420)
VDec: using Planar I420 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
[swscaler @ 0x9e6a510]No accelerated colorspace conversion found.
[swscaler @ 0x9e6a510]using unscaled yuv420p -> rgb24 special converter
VO: [xv] 0x480 => 0x480 Planar I420
A: 0.9 V: 0.9 A-V: -0.057 ct: -0.085 22/ 22 32% 5% 2.7% 4 0
===== PAUSE =====
