The original algorithm was incorrectly including the nal_unit_type in the returned RBSP when there were no emulation bytes to filter. This version is slower because it examines every byte individually but it's simpler to understand. Add a test case for H264 stream parsing that demonstrates the issue.
When debugging transmux issues, it can be handy to be able to easily compare the result of the javascript segment parser with the working output from a tool like ffmpeg. Put together a test page to display the hex dump of segment-parser output side-by-side with a working example. Fixed the hex dump utility to produce more than one line of output per tag.
Pushing an entire segment worth of FLV tags into the source buffer at once caused noticeable delays with high-bitrate segments. Instead, wrap each call to appendBuffer in a setTimeout of zero so that the browser has a chance to render frames while the segment is being transferred to the SWF. Make sure that appends-in-progress are cleared if a seek is initiated.
Make sure that if the segment parser produces tags with ascending pts values, the plugin filters out tags with pts < currentTime before appending to the media source.
The segment parser allows fragmentary input to the muxing process so it's not always clear when a tag should be finalized at the end of the input. By calling segmentParser.flushTags(), the parser is instructed to wrap up whatever input it currently has buffered into an FLV tag. Before this change, the last tag of the video stream would be buffered in the parser, waiting for additional input (i.e. another segment download) to flush it out. When you seeked within a segment, that last tag would have a timestamp greater than your seek point and we were assuming that timestamp values were sorted in ascending order. We would see the timestamp value greater than the desired seek location and start feeding tags into the media source, which resulted in the segment appearing to restart. Now, we close off any tags that are buffered at the end of a segment so the inter-segment seeking routine can assume that tags are delivered in the order of playback.
Get rid of leftovers from the previous iteration of managing manifest and stream downloading. That logic has been consolidated into the main plugin file.
David LaPalomento