[請問] 720*480為什麼播放器是顯示16:9?
我播放一個影片
明明解析度是720*480
但是顯示上卻是全銀幕 毫無黑邊
而且 用播放器顯示影片資訊(mpc-hc) 還顯示16：9
影片資訊如下：
General
Complete name
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 154 MiB
Duration : 23mn 50s
Overall bit rate mode : Variable
Overall bit rate : 902 Kbps
Encoded date : UTC 2012-10-07 06:19:15
Tagged date : UTC 2012-10-07 06:19:15
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 23mn 50s
Source duration : 23mn 49s
Bit rate : 761 Kbps
Maximum bit rate : 3 388 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.074
Stream size : 130 MiB (84%)
Source stream size : 137 MiB (89%)
Writing library : x264 core 68 r1183M f21daff
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x1:0x111 / me=umh / subme=9 / psy_rd=0.0:0.0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / chroma_qp_offset=0 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=0 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=0 / keyint=250 / keyint_min=25 / scenecut=40 / rc=crf / crf=22.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / vbv_maxrate=10000 / vbv_bufsize=10000 / ip_ratio=1.40
/ pb_ratio=1.30 / aq=0
Encoded date : UTC 2012-10-06 05:51:07
Tagged date : UTC 2012-10-07 06:19:16
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : HE-AAC / LC
Codec ID : 40
Duration : 23mn 50s
Bit rate mode : Variable
Bit rate : 96.0 Kbps
Maximum bit rate : 120 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz / 24.0 KHz
Compression mode : Lossy
Delay relative to video : 120ms
Stream size : 16.3 MiB (11%)
Encoded date : UTC 2012-10-07 06:19:16
Tagged date : UTC 2012-10-07 06:19:16
想問一下 這是什麼回事嗎？
謝謝
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