specifying the "src" attribute.
Input
Input form field
Marquee
Move subtitle Effect
Span
Defines an area on the web page. The height, width, or absolute position of this area is known.
Table
Table
TD
Table data cell
Textarea
Text area
Tfoot
Multi-line Input text box
Th
Table
established in 1906 and has a history of more than 90 years. It is the world's earliest international electrical Standardization Organization, responsible for international standardization work in the field of electrical engineering and Electronic Engineering.
7. JVT Joint Video Team joint video workgroup
8. PTs presentation time stamp PTS is mainly used to measure when decoded video frames are displayed.
9. DTS decode time stamp DTS mainly identifies when bit streams in the memory are read int
background of a webpage5.1 background color5.2 background image5.3 Background 1: My Personal Homepage5.4 Background 2: The old saying "Nian nujiao Chibi huaigu"Chapter 4 set the style of a table and a form with CSS6.1 control table6.2 table Example 1: The color of the row to be separated6.3 table Example 2: The table that changes color when the mouse passes6.4 table Example 3: Calendar6.5 CSS and forms6.6 integrated Example 1: an Excel table directly entered6.7 comprehensive Example 2: imitatin
Blend: Alpha blends input with the graphics. Merges the input video and image into Alpha.
Cproc: color processing. Color Processing. Such as dynamic contrast enhancement, saturation enhancement, and color space conversion.
CEC: Consumer Electronics Control. Consumer Electronic Control
Chr_us/chr_ds: chroma downsampler (chr_ds), chroma_upsampler (chr_us), used for converting yuv420
CIG: Constrained image generator. Produce constrained (low-resolution)
by all cr samples (with half the stride of the Y lines, and half the number of lines), then followed immediately by all CB samples in a similar fashion.
Iyuv
The same as yv12, before t for swapping the order of the CB and Cr planes.
Nv12
A format in which all y samples are found first in memory as an array of unsigned char with an even number of lines (possibly with a larger stride for memory alignment ). this is followed immediately by an array of unsigned char
specifying the "src" attribute.
INPUT
Input form field
MARQUEE
Move subtitle Effect
SPAN
Defines an area on the web page. The height, width, or absolute position of this area is known.
TABLE
Table
TD
Table data cell
TEXTAREA
Text area
TFOOT
Multi-line Input text box
TH
Table
/false direction = direction strength = intensity)Add: Specifies whether to perform fuzzy direction based on the impression style; fuzzy direction: strength; fuzzy intensity5. transparent object alpha (opaction = 0-100, finishopacity = 0-100, style = 0/1/2/3)Opaction object overall opacity value finishopacity when the object uses the progressive transparency, this specifies the end transparency position opacity value. Style specifies the transparency mode. 0 indicates the overall transparency, 1
Key 2:
Border transparent CSS attributes:Transparent
Filters are required for transparent borders in IE6:/*_ Filter: chroma (color =#000000);The color filter allows IE6 To implement transparent bordercolor. Here the color value of the filter cannot be abbreviated */
Html
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of the camera and storing it as a file
FFmpeg-F video4linux-s 320*240-R 10-I/dev/video0 test. ASF
For more information, refer to the FFMPEG Engineering Group forum discussion post: video collection for FFMPEG
Note: The video collection function of FFMPEG can only be used in Linux environments.
Use FFMPEG to suppress H.264 videos
FFmpeg-threads 4-I input-r 29.97-vcodec libx264-s 480X272-flags + loop-CMP + chroma
To collect and process videos, you must learn to analyze YUV data. From the collection point of view, generally the video capture chip output streams are generally in the form of YUV data streams, while video processing (such as H. 264. MPEG Video Codec) is also used for encoding and parsing the original YUV code stream. Therefore, it is important for people who are engaged in the video field to understand how to analyze the YUV data stream. This article briefly introduces how to analyze YUV dat
is 270 degrees to the left.The width of "strength" pixels is blurred. The default value is 5 pixels.
C)TransparentChroma
Set the specified color to transparentSyntax: {filter: chroma (color = color )}
Color, set to the value of the transparent color
Example:
D)Projection shadow
Syntax: {filter: dropshadow (color = color, offx = x, offy = Y, positive = positive )}"Color" shadow color"Offx" and "offy" are the offsets of shadows in the X and Y directi
(color = color, offx = offx, offy = offy, positive = positive)
Note:Color: # rrggbb format, any.Offx: returns the offset of the X axis.Offy: Y-axis deviation value.Positive: If it is "true", a visible projection is created for any non-transparent pixel. If it is "false", a visible projection is created for the transparent pixel part.
Projection effect: filter: progid: DXImageTransform. Microsoft. dropshadow (color = #000000, offx = 5, offy = 5, positives = true );
W3C code:-WebKit-filter: Drop-
. The default value is 10.Maxmum quantizer:Sets the maximum quantization value, ranging from 0 ~ 51. The default value is 51.Maxmum quantizer delta:Sets the quantization value difference between adjacent frames in the range of 0 ~ 50. The default value is 4.Credits quantizer:Member table quantification ValueFactor Between I and P frame quants:Quantization coefficient between I frame and P frame. The default value is 1.40.Factor between P and B frame quants:Quantization coefficient between P and
= 0.596r-0.275G-0.321bQ = maid-0.523G + 0.311bOr, in the form of a matrix,YUV (also known as ycrcb) is a color encoding method used by European television systems ). YUV is mainly used to optimize the transmission of color video signals, so that it is backward compatible with vintage black and white TVs. Compared with RGB video signal transmission, RGB requires three independent video signals to be transmitted at the same time.
In YUV, "Y" indicates the brightness (luminance or Luma), that is,
Statement: This article Reprinted from: http://www.cnblogs.com/azraelly/archive/2013/01/01/2841269.html
YUV formats include planar and packed.For the YUV format of planar, the y of all pixels is stored consecutively, followed by the U of all pixels, followed by the V of all pixels.For the packed YUV format, the Y, U, and V of each pixel are stored consecutively.
YUV is divided into three components. "Y" indicates the brightness (luminance or Luma), that is, the gray value; "u" and "V" represe
To collect and process videos, you must learn to analyze YUV data. From the collection point of view, generally the video capture chip output streams are generally in the form of YUV data streams, while video processing (such as H. 264. MPEG Video Codec) is also used for encoding and parsing the original YUV code stream. Therefore, it is important for people who are engaged in the video field to understand how to analyze the YUV data stream. This article briefly introduces how to analyze YUV dat
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