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6<title>SSP_StartJpegEncoderLite</title>
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10
11<h1>SSP_StartJpegEncoderLite <img src="../../image/NTR.gif" align="middle"><img src="../../image/TWL.gif" align="middle"></H1>
12<H2>Syntax</H2>
13
14<pre><code>
15u32 SSP_StartJpegEncoderLite(const void* src, u8 *dst, u32 limit, u8 *wrk, u32 width, u32 height, u32 quality, u32 sampling, u32 option);
16</code></pre>
17
18<h2>Arguments</h2>
19<table style="width:100%">
20<tbody>
21<tr>
22<td style="width:13%"><SPAN class="argument">src</SPAN></td>
23<td style="width:87%">Image data to encode (RGB555 or YUV422). Must be 4-byte aligned.</td>
24</tr>
25<tr>
26<td style="width:13%"><SPAN class="argument">dst</SPAN></td>
27<td style="width:87%">Buffer to store the encoding results. Must be 4-byte aligned.</td>
28</tr>
29<tr>
30<td style="width:13%"><SPAN class="argument">limit</SPAN></td>
31<td style="width:87%">Represents the <SPAN class="argument">dst</SPAN> size.<br>Encoding fails if this size is exceeded.</td>
32</tr>
33<tr>
34<td style="width:13%"><SPAN class="argument">wrk</SPAN></td>
35<td style="width:87%">Working buffer. This must be 4-byte aligned. You can use the <a href="SSP_GetJpegEncoderLiteBufferSize.html"><CODE>SSP_GetJpegEncoderLiteBufferSize</CODE></a> function to calculate the required size.</td>
36</tr>
37<tr>
38<td style="width:13%"><SPAN class="argument">width</SPAN></td>
39<td style="width:87%">Width (in pixels) of the image to encode.</td>
40</tr>
41<tr>
42<td style="width:13%"><SPAN class="argument">height</SPAN></td>
43<td style="width:87%">Height (in pixels) of the image to encode.</td>
44</tr>
45<tr>
46<td style="width:13%"><SPAN class="argument">quality</SPAN></td>
47<td style="width:87%">Encoding quality.<br>Values from 1 to 100 can be specified, where 100 represents the highest quality and the largest size.</td>
48</tr>
49<tr>
50<td style="width:13%"><SPAN class="argument">sampling</SPAN></td>
51<td style="width:87%">Main image output formats (<CODE>SSP_JPEG_OUTPUT_YUV444</CODE>, <CODE>SSP_JPEG_OUTPUT_YUV420</CODE>, or <CODE>SSP_JPEG_OUTPUT_YUV422</CODE>).</td>
52</tr>
53<tr>
54<td style="width:13%"><SPAN class="argument">option</SPAN></td>
55<td style="width:87%">Encoding options (<CODE>SSP_JPEG_RGB555</CODE>, <CODE>SSP_JPEG_YUV422</CODE>, or <CODE>SSP_JPEG_THUMBNAIL</CODE>).</td>
56</tr>
57</tbody>
58</table>
59
60
61<h2>Return Values</h2>
62<p>Returns the size of the created JPEG file when successful.<BR>Returns 0 when it fails.</p>
63
64<h2>Description</h2>
65<p>Encodes image data as a JPEG file. This has the same basic behavior as the <a href="SSP_StartJpegEncoder.html"><CODE>SSP_StartJpegEncoder</CODE></a> function, but it uses a much smaller working buffer (<SPAN class="argument">wrk</SPAN>). For an explanation of the parts that are in common, see the <a href="SSP_StartJpegEncoder.html"><CODE>SSP_StartJpegEncoder</CODE></a> page.
66</p>
67
68<h2>See Also</h2>
69<p><a href="SSP_StartJpegEncoder.html"><CODE>SSP_StartJpegEncoder</CODE></a><BR> <a href="SSP_GetJpegEncoderLiteBufferSize.html"><CODE>SSP_GetJpegEncoderLiteBufferSize</CODE></a></p>
70
71<h2>Revision History</h2>
72<p>
732009/04/27 Initial version.
74</p>
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