My customer wants to use CustomQ. But it seems the output is still effected by the value of Qvalue. Is that true?
If yes, what's the relationship between the Q table used in codec and CustomQ/Qvalue? If I set Qvalue to 97 (max), does the the code use the q table in CustomQ without change?
Which device/codec is this Chris ?
Sorry, it seems the subject line had that info, will ask appropriate person to reply.
The DM365 will directly use the custom Q Matrix submitted by user. In a custom Q use case, the QValue parameter is ignored.
Need we do below control call to set the CustomQ before process?
IMG_Control((IIMGENC1_Handle)handle, JPEGENC_TI_ENCODE_SETCUSTOMQ, (IIMGENC1_DynamicParams *)&extn_dynamicParams, (IIMGENC1_Status *)&status);
We made it work. We need to improve our JPEGenc user guide to add above info.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.