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  1. Member
    Join Date
    Dec 2008
    Location
    United States
    Search Comp PM
    Hello,

    We are having trouble with the generated FLV files. They seem to be encoding as streaming and not progressive. Is there a setting that we are missing that allows for progressively encoded FLV's?

    Thanks

  2. Explorer Case's Avatar
    Join Date
    Feb 2004
    Location
    Middle Earth
    Search Comp PM
    a/ This forum is for ffmpegX, the Mac OS X front-end GUI to ffmpeg, mencoder and mpeg2enc. The OS entry in the Computer Details of your Profile seems to contradict the use of ffmpegX.

    b/ Streaming vs. non-streaming video is usually related to playback that starts before the download is complete, although strictly speaking, true streaming shouldn't download at all. In video, "progressive" is usually said of video that does not interlace. These two properties are unrelated, although interlacing is hardly seen on web video.
    Please elaborate on what you mean by "progressively encoded FLVs".

  3. Member
    Join Date
    Dec 2008
    Location
    United States
    Search Comp PM
    This is what I mean re: progressive FLVs. Taken from Wikipedia

    Progressive download via HTTP (supported in Flash Player 7 and later). This method uses ActionScript to include an externally hosted Flash Video file client-side for playback. Progressive download has several advantages, including buffering, use of generic HTTP servers, and the ability to reuse a single SWF player for multiple Flash Video sources. Flash Player 8 includes support for random access within video files using the partial download functionality of HTTP, sometimes this is referred to as streaming. However, unlike streaming using RTMP, HTTP "streaming" does not support real-time broadcasting. Streaming via HTTP requires a custom player and the injection of specific Flash Video metadata containing the exact starting position in bytes and timecode of each keyframe. Using this specific information, a custom Flash Video player can request any part of the Flash Video file starting at a specified keyframe. For example, Google Video and Youtube support progressive downloading and can seek to any part of the video before buffering is complete. The server-side part of this "HTTP pseudo-streaming" method is fairly simple to implement, for example in PHP, as an Apache module, or using lighttpd.

    When using Riva on a PC, for example, I can choose progressive or streaming as the target FLV playback type. The FLVs created on a mac using FFMPEGX do not work when played back on a non-streaming server. Perhaps there is a setting we need to change?

    Thanks




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