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<blockquote data-quote="knutinh" data-source="post: 70298" data-attributes="member: 14776">Perhaps frodo can give you a &quot;hook&quot; where you can work on YUV data? In that case, 8bit intensity data would be available for &quot;free&quot;. Also, a single Y frame should be 1/3 the size of a combined rgb frame, so perhaps cache issues etc are better?It is also interesting to discuss the multi-frame behaviour. A very dark frame would as you say not be detected as any format. Detecting &quot;uncertain&quot; conditions and keeping the last known &quot;good&quot; format would probably be simple.But what if the user change channels into a very dark one? Then no history is available. And sometimes, formats change alle the time. Such as commercials and shows that use 16:9 letterbox as an &quot;artistic&quot; element. Should MP &quot;lock on to&quot; the format instantaneously, or should there be 500msec of delay to not give the user a head-ache?In case there is a delay, then perhaps you only need to process every X frames, decreasing the avg load?-k</blockquote>

[QUOTE="knutinh, post: 70298, member: 14776"] Perhaps frodo can give you a "hook" where you can work on YUV data? In that case, 8bit intensity data would be available for "free". Also, a single Y frame should be 1/3 the size of a combined rgb frame, so perhaps cache issues etc are better? It is also interesting to discuss the multi-frame behaviour. A very dark frame would as you say not be detected as any format. Detecting "uncertain" conditions and keeping the last known "good" format would probably be simple. But what if the user change channels into a very dark one? Then no history is available. And sometimes, formats change alle the time. Such as commercials and shows that use 16:9 letterbox as an "artistic" element. Should MP "lock on to" the format instantaneously, or should there be 500msec of delay to not give the user a head-ache? In case there is a delay, then perhaps you only need to process every X frames, decreasing the avg load? -k [/QUOTE]

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