<div class="gmail_quote">Dear All,<br><br>For cryptography purposes, I would like to insert decryption in the h264 codec file.<br>What I am looking for is actually the points where I can access the each DCT coeff and MV value in CAVLC mode.<br>
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What I know so far is that there is a very long function called decode_mb_cavlc() and it has lines "tprintf(s->avctx, "final mv:%d %d\n", mx, my);" after which the final mv is calculated but can anybody tell me where I can access the residual values that are stored in the video file. So at which point is that read?<br>
<br>As for dct level and sign values, I have the same question. Where can I access the values directly after they get read from the source file? (so that I can manipulate/decrypt them)<br><br>Thanks for help.<br><br><br>
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