{5} Assigned, Active Tickets by Owner (Full Description) (9 matches)

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astrange

Ticket Summary Component Milestone Type Severity Created
Description
#163 QuickTime file icons for custom video formats PrefPane 1.3 enhancement minor 04/23/07

Some kind of replacement icons for formats such as FLV and MKV which QuickTime doesn't have icons for?

#112 Transcode Windows "UYVY" to Mac "2vuy" Perian-Main Needs Feedback From User enhancement normal 02/22/07

Un-compressed analog capture on Win XP platforms is often in "UYVY". It would be nice to view/edit and encode in quicktime or other Mac apps but this is not currently supported. In reading FourCC, this appears to be a simple binary edit (i.e., change file tags to "2vuy"). I have had some success in file conversion using a hex editor. Would be nice if this simple trascode was included in Perian. Thx.

#220 Improve subtitle sizes for non-English languages Subtitles Sometime after 1.0 enhancement normal 07/10/07

SRT subs are shown at 32pt at 640x480, and scale up with the diagonal of the movie from that. But if we do font substitution (if Helvetica doesn't support the sub language) the resulting font might be a different size from Helvetica and appear really small.

Not sure how to detect this – it could happen anywhere in the file, really.

#319 SSA/ASS Subtitle collision implentation deviation. Subtitles 1.3 defect normal 02/24/08

I've noticed that the implementation of SSA/ASS in Perian deals with subtitle collision differently than vsfilter (and if memory serves) substation alpha. I think that this is just about the last piece of the puzzle for getting Perian to where it's a complete replacement for me for subtitle viewing applications.

I've made some sample files available at:

ftp://test:test@catbus.no-ip.org:7132/testclip-collision.rar

#383 SRT not displaying Subtitles Needs Feedback From User defect normal 10/20/08

The attached SRT subtitles display fine in MPlayer, but not in Perian.

#417 Indeo 4 and 5 support Codec 1.3 enhancement normal 06/24/09

Perian still does not support Indeo 4 and 5 codecs. However, until FFMpeg adds support for Indeo 4 and 6, there's not a lot that Perian can do.

#427 Fix positioning of \org Subtitles 1.4 defect normal 07/10/09

The ssa tag \org disables collision detection, although it doesn't seem to be documented (in aegisub's manual, anyway). The attached file misrenders because of that.

#444 MKV+TrueAudio doesn't work matroska 1.3 defect normal 09/13/09

The useless extradata (which we can't even recover properly because MKV is broken) is mandatory in the ffmpeg decoder.

Attached patch would be the right fix if it generated ff_private/create_cookie() format.

#478 RFC - MBAFF interlaced support Perian-Main 1.3 enhancement normal 02/12/10

Please consider to support MBAFF stream.

This is a MBAFF sample movie (source/output) of x264Encoder 1.2.0.

Movie: EncodedPixels?.mov
- source movie file. Highly visible combing noise. DV-NTSC video track, with Encoded Pixels Aperture mode.

Movie: MBAFF.mov
- output MBAFF interlaced movie. fourCC=avc1. Using MBAFF interlaced cording method.

//

MBAFF uses adaptive progressive/interlaced coding. Each macro block is examined as which method would produce better result.

From decompressor point of view, one sample always contains single frame, not single field. Some sample would be progressive macro block only, but some sample would contain interlaced macro block.

//

Under my simple test, Apple H.264 decoder seems to stuck every time at interlaced sample (progressive only samples are decoded correctly though), causes - choppy playback -.

Perian 1.2.0 does not help for now. Current Perian implementation, does not handle any interlaced avc1 media by itself. Thus apple H.264 decoder always try to decode it.

Additionally, my old avc1Decoder does override both apple H.264 decoder and Perian, which can decode MBAFF media smoothly. I think libavcodec can decode MBAFF media without problem now.
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