id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc,mlocked 11283,heavy network load when viewing large (> 1Gbyte) MP4 video,willem@…,,"When watching a MP4 video with mythfrontend running on a different system than mythbackend, I observe heavy network traffic and a stuttering display. My network is 100Mbit, and it is completely loaded: ca. 10 Mbyte/second down, ca. 200kByte/sec up. This does not happen when the video is smaller than 1 Gbyte. In fact, I have a video in two parts, each of which is less than 1 Gbyte and plays fine. When I combine the parts with mencoder part1.avi part2.avi -oac copy -ovc copy -o total.avi viewing the resulting file (total.avi) results in the heavy network load. The characteristics of the video: {{{ ID_VIDEO_ID=0 ID_AUDIO_ID=1 ID_CLIP_INFO_NAME0=Software ID_CLIP_INFO_VALUE0=MEncoder\ svn\ r34540\ \(Ubuntu\),\ built\ with\ gcc-4.6 ID_CLIP_INFO_N=1 ID_FILENAME=total.avi ID_DEMUXER=avi ID_VIDEO_FORMAT=FMP4 ID_VIDEO_BITRATE=1816640 ID_VIDEO_WIDTH=704 ID_VIDEO_HEIGHT=386 ID_VIDEO_FPS=25.000 ID_VIDEO_ASPECT=0.0000 ID_AUDIO_FORMAT=85 ID_AUDIO_BITRATE=126136 ID_AUDIO_RATE=0 ID_AUDIO_NCH=0 ID_START_TIME=0.00 ID_LENGTH=8379.68 ID_SEEKABLE=1 ID_CHAPTERS=0 ID_VIDEO_CODEC=ffodivx ID_AUDIO_BITRATE=126136 ID_AUDIO_RATE=48000 ID_AUDIO_NCH=2 ID_AUDIO_CODEC=ffmp3float ID_EXIT=EOF }}} I have to add that the effect present for all video's larger than 1Gbyte, for example the video with the following characteristics gives the same problem: {{{ ID_VIDEO_ID=0 ID_AUDIO_ID=1 ID_CLIP_INFO_NAME0=Software ID_CLIP_INFO_VALUE0=MEncoder\ svn\ r34540\ \(Ubuntu\),\ built\ with\ gcc-4.6 ID_CLIP_INFO_N=1 ID_FILENAME=test2.avi ID_DEMUXER=avi ID_VIDEO_FORMAT=MP42 ID_VIDEO_BITRATE=3077192 ID_VIDEO_WIDTH=1024 ID_VIDEO_HEIGHT=416 ID_VIDEO_FPS=25.000 ID_VIDEO_ASPECT=0.0000 ID_AUDIO_FORMAT=85 ID_AUDIO_BITRATE=213920 ID_AUDIO_RATE=0 ID_AUDIO_NCH=0 ID_START_TIME=0.00 ID_LENGTH=5084.20 ID_SEEKABLE=1 ID_CHAPTERS=0 ID_VIDEO_CODEC=ffmp42 ID_AUDIO_BITRATE=213920 ID_AUDIO_RATE=48000 ID_AUDIO_NCH=2 ID_AUDIO_CODEC=ffmp3float ID_EXIT=EOF }}} Something to do with RIFF chunks at 1023 Mbyte? Regards, Willem Vermin",Bug Report - General,closed,minor,unknown,MythTV - Video Playback,0.25.3,medium,Won't Fix,,,0