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<div><span></span>I've tried MJPEG2000 algorithm and it did reduce the data transferred. I capture the raw bitmap data and compress it using MPJEG2000.</div><div><br></div><div>If you transfer the quic_data to x264, it will cost much CPU utilization. As far as I know, someone has made it to use x264 to process videos, but the performance improves little.</div>
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<div><span><div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div style="font-family: 宋体; font-size: 14px; line-height: 21px;"><div><br></div><div><span style="font-size: 10.5pt;"></span></div></div></div></span></div>
<blockquote style="margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;"><div> </div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style="PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b> <a href="mailto:wangqiang.hunan@gmail.com">Qiang</a></div><div><b>Date:</b> 2014-05-27 15:24</div><div><b>To:</b> <a href="mailto:spice-devel@lists.freedesktop.org">spice-devel</a></div><div><b>Subject:</b> [Spice-devel] Intra-frame compress for spice video channel</div></div></div><div><div class="FoxDiv20140527152749443429">
Hi, Dear all<br>
<span style="color: rgb(0, 0, 0); font-family: Helvetica, Arial,
sans-serif; font-size: 14px; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal; line-height:
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text-transform: none; white-space: normal; widows: auto;
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!important; float: none;"><br>
I want to improve Spice bandwidth utilization, with a reasonable
cost of more CPU utilization.<br>
Under my test the audio(with opus) work fine under low bandwidth.
<br>
As I know the spice didn't use the intra-frame to compress the
video data. <br>
Under my test all the display frame be compressed as quic_data.
But even use the <br>
quic compress, it take huge bandwidth to play my 480P movie. <br>
So I wanted to implement the intra-frame to compress(</span><span style="color: rgb(0, 0, 0); font-family: Helvetica, Arial,
sans-serif; font-size: 14px; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal; line-height:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline
!important; float: none;"><span style="color: rgb(0, 0, 0);
font-family: Helvetica, Arial, sans-serif; font-size: 14px;
font-style: normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px; display: inline !important;
float: none;">As an compress option.</span>) based x264.<br>
<br>
There are seem two ways. <br>
1) drawable_data -> stream -> use the x264 instead the
M-JPEG compressed.<br>
I am struggling why this data didn't pass through the video
stream. But as a quic_data.<br>
2) quic_data -> transfer the quic_data to a rgb data -> use
the x264 to compress it. <br>
But I am not sure how transfer the quic_data to x264 input_data?
there is so limited doc about this. <br>
<br>
Any idea about the intra-frame or the video compression please let
me know. <br>
<br>
PS: Anyone know the new contact way of </span>Yonit Halperin<br>
<span style="color: rgb(0, 0, 0); font-family: Helvetica, Arial,
sans-serif; font-size: 14px; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal; line-height:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline
!important; float: none;">
<br>
Thanks very much.<br>
</span>
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