[請問] 720*480為什麼播放器是顯示16:9?

看板AVEncode (影音編碼技術)作者idmaker (SMAN)時間12年前 (2012/10/12 00:34)推噓4(4推 0噓 6→)

留言10則, 6人參與討論串1/1

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 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 1.175.202.29