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<blockquote data-quote="griffindodd" data-source="post: 688069" data-attributes="member: 90099">Interesting...I changed the bandwidth variable for video (which I assume is the -b flag) and it didn't seem to make any difference. I turned it all the way down to 10k but the stream still looked very high quality on the iPhone.Here's the variable and profile I altered...&lt;transcoder name=&quot;LiveTV&quot; usetranscoding=&quot;1&quot; filename=&quot;&amp;quot;C:/Program Files/iPiMP/Utilities/ffmpeg\ffmpeg.exe&amp;quot;&quot; args=&quot;-i - -threads 0 -re -vcodec libx264 -fpre &amp;quot;C:/Program Files/iPiMP/Utilities/ffmpeg/ffpresets/libx264-iPiMP.ffpreset&amp;quot; -b 256k -s 480x272 -aspect 480:272 -acodec libfaac -ac 2 -ab 64k -ar 48000 -ac 2 -async 2 -f ism http://127.0.0.1:1972/SmoothStream.isml/Streams(SmoothStream)?dvr_window_length=15&quot; inputmethod=&quot;2&quot; outputmethod=&quot;4&quot; /&gt;Could it be that FFMpeg is ignoring the conditions set in this config??UPDATE::Ok I fixed the bitrate issue by specifying the buffer size and managing the min/max bitrates...-b 256k -bufsize 100000K -minrate 128K -maxrate 312KSo at least it's not ignoring the bitrate now. However this doesn't solve the dropout problem.FOUND THISI noticed that if I left the video to buffer for a few minutes before playing it still drops out after a few seconds, it seems that playback starts 5 seconds from the end of the buffer rather than starting from the beginning, so even letting the stream buffer for 2 minutes, when you press play it starts playback from 1:55 and then of course runs out of buffer quickly.I noticed it does the same on Flash streaming in a web browser and the iPhone playback, so it's not just isolated to the iPhone as such.Not sure how to stop this.</blockquote>

[QUOTE="griffindodd, post: 688069, member: 90099"] Interesting... I changed the bandwidth variable for video (which I assume is the -b flag) and it didn't seem to make any difference. I turned it all the way down to 10k but the stream still looked very high quality on the iPhone. Here's the variable and profile I altered... <transcoder name="LiveTV" usetranscoding="1" filename=""C:/Program Files/iPiMP/Utilities/ffmpeg\ffmpeg.exe"" args="-i - -threads 0 -re -vcodec libx264 -fpre "C:/Program Files/iPiMP/Utilities/ffmpeg/ffpresets/libx264-iPiMP.ffpreset" [B]-b 256k[/B] -s 480x272 -aspect 480:272 -acodec libfaac -ac 2 -ab 64k -ar 48000 -ac 2 -async 2 -f ism http://127.0.0.1:1972/SmoothStream.isml/Streams(SmoothStream)?dvr_window_length=15" inputmethod="2" outputmethod="4" /> Could it be that FFMpeg is ignoring the conditions set in this config?? [B]UPDATE::[/B] Ok I fixed the bitrate issue by specifying the buffer size and managing the min/max bitrates... -b 256k -bufsize 100000K -minrate 128K -maxrate 312K So at least it's not ignoring the bitrate now. However this doesn't solve the dropout problem. [B]FOUND THIS[/B] I noticed that if I left the video to buffer for a few minutes before playing it still drops out after a few seconds, it seems that playback starts 5 seconds from the end of the buffer rather than starting from the beginning, so even letting the stream buffer for 2 minutes, when you press play it starts playback from 1:55 and then of course runs out of buffer quickly. I noticed it does the same on Flash streaming in a web browser and the iPhone playback, so it's not just isolated to the iPhone as such. Not sure how to stop this. [/QUOTE]

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