• Mart Raudsepp's avatar
    qtdemux: Provide a 2 frames lead-in for audio decoders · cbfa4531
    Mart Raudsepp authored
    AAC and various other audio codecs need a couple frames of lead-in to
    decode it properly. The parser elements like aacparse take care of it
    via gst_base_parse_set_frame_rate, but when inside a container, the
    demuxer is doing the seek segment handling and never gives lead-in
    data downstream.
    Handle this similar to going back to a keyframe with video, in the
    same place. Without a lead-in, the start of the segment is silence,
    when it shouldn't, which becomes especially evident in NLE use cases.
    cbfa4531
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