plastrd 0 Posted September 1, 2015 Share Posted September 1, 2015 Server version 3.0.5713.6 beta I've been experimenting with the live TV support and recorded last night's re-run of The Simpsons from my HDHR Prime (mediainfo below). When casting this recording to my Chromecast, it transcodes the video to h264 as it should, but it is also transcoding the audio to AAC despite the Chromecast AC3 Passthrough option being checked. The log shows ffmpeg being told to transcode both audio and video. Meanwhile an episode of Backstrom that I have encoded in h264/AC3 is direct streaming to the Chromecast without any interference at all (and with AC3 being received by my receiver). This is great! Is the server supposed to go "whole hog" when transcoding when only one or two issues are present that would prevent direct streaming (in this case video codec and container)? What I'm wondering is if the server could have ffmpeg transcode the video and just copy the existing AC3 audio to the output instead of transcoding to AAC? Unrelated issue, I couldn't switch the audio stream to the spanish one to see what would happen but I'm less concerned about that right now. Media Info for The Simpsons .ts recording: Video Codec MPEG2VIDEO Profile Main Level 4 Resolution 1280x720 Aspect ratio 16:9 Anamorphic No Interlaced No Framerate 59.94006 Bitrate 12234 kbps Bit depth 8 bit Pixel format yuv420p Audio Language eng Codec AC3 Layout 5.1 Channels 6 ch Bitrate 437 kbps Sample rate 48000 khz Default No Audio Language spa Codec AC3 Layout stereo Channels 2 ch Bitrate 187 kbps Sample rate 48000 khz Default No Container ts Path D:\DVR\Series\The Simpsons\The Simpsons S26E21 Bull-E.ts Media Info for Backstrom .mkv direct stream Video Codec H264 Profile High Level 41 Resolution 1280x720 Aspect ratio 16:9 Anamorphic No Interlaced No Framerate 23.97602 Bitrate 3505 kbps Bit depth 8 bit Pixel format yuv420p Ref frames 5 CABAC Yes Audio Codec AC3 Layout 5.1 Channels 6 ch Bitrate 375 kbps Sample rate 48000 khz Default Yes Container mkv Path D:\TV\Backstrom\Backstrom.S01E01.720p.HDTV.mkv Link to comment Share on other sites More sharing options...
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