<div dir="ltr"><span style="font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;font-size:14px;line-height:18px;text-align:left">I've made many tests to get good performance for video decoding with ffmpeg on low cpu idevices such as iPad 1 and iPhone 3Gs, and see that using asm option when configuring ffmpeg for cross compiling for ios is very very important for performance..</span><br>
<div class="gmail_quote"><div dir="ltr">
<p style="clear:both;vertical-align:baseline;line-height:18px;text-align:left;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
But when I configure with --enable-asm, the audio stream which using mpx(mp1,mp2,mp) codec sounds squeaky. If I configure with --disable-asm option, than mpx(mp1,mp2,mp) codec sounds well but then the performance is %50 percent of the previous one built with the --enable-asm option...</p>
<p style="clear:both;vertical-align:baseline;line-height:18px;text-align:left;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
I've also tested these with the ffmpeg versions that are 0.8, 0.9, 0.10, 0.11, 1.0,1.1,1.2 All of them produces same results...</p><p style="clear:both;vertical-align:baseline;line-height:18px;text-align:left;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
Can anyone have the same problem with me ? Also, any idea how can I fix this issue ? please advice me .. (I can not find any patch to fix this issue on the net or in ffmpeg forums.)</p><p style="clear:both;vertical-align:baseline;line-height:18px;text-align:left;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
-mg</p></div>
</div><br></div>