<br><div class="gmail_quote"><br> I have a problem with encoding a video.<div><br></div><div>So I have a video:</div><div><br></div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
General<br>Format : MPEG-4<br>Format profile : QuickTime<br>Codec ID : qt <br>File size : 306 MiB<br>
Duration : 3mn 37s<br>Overall bit rate : 11.8 Mbps<br>Encoded date : UTC 2011-10-13 03:18:58<br>Tagged date : UTC 2011-10-13 03:35:11<br>
Writing library : Apple QuickTime<br>Video<br>ID : 2<br>Format : AVC<br>Format/Info : Advanced Video Codec<br>
Format profile : Main@L4.0<br>Format settings, CABAC : No<br>Format settings, ReFrames : 2 frames<br>Codec ID : avc1<br>Codec ID/Info : Advanced Video Coding<br>
Duration : 3mn 37s<br>Bit rate : 10.3 Mbps<br>Width : 1 888 pixels<br>Original width : 1 920 pixels<br>
Height : 1 062 pixels<br>Original height : 1 080 pixels<br>Display aspect ratio : 16:9<br>Frame rate mode : Constant<br>
Frame rate : 25.000 fps<br>Color space : YUV<br>Chroma subsampling : 4:2:0<br>Bit depth : 8 bits<br>Scan type : Progressive<br>
Bits/(Pixel*Frame) : 0.205<br>Stream size : 266 MiB (87%)<br>Language : English<br>Encoded date : UTC 2011-10-13 03:35:07<br>
Tagged date : UTC 2011-10-13 03:35:11<br>Color primaries : BT.709<br>Transfer characteristics : BT.709<br>Matrix coefficients : BT.709<br>
Audio<br>ID : 1<br>Format : PCM<br>Format settings, Endianness : Little<br>Format settings, Sign : Signed<br>Codec ID : sowt<br>
Duration : 3mn 37s<br>Bit rate mode : Constant<br>Bit rate : 1 536 Kbps<br>Channel(s) : 2 channels<br>
Channel positions : Front: L R<br>Sampling rate : 48.0 KHz<br>Bit depth : 16 bits<br>Stream size : 39.8 MiB (13%)<br>
Language : English<br>Encoded date : UTC 2011-10-13 03:35:07<br>Tagged date : UTC 2011-10-13 03:35:11</blockquote><div><br></div></div>
<div> I want to convert it to .ogg file and preserve its: audio/video parameters like bit rate aspect ratio and amount of pixels, but when I try to encode it with ffmpeg it always lowers audio/video bit rate.</div><div> can you tell me a commend that will output a similar file like the source is </div>
<div><br></div><div> Thank you in advanced </div>
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