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* sync: correct timestamp discontinuities in sync instead of reader (#192)John Stebbins2016-05-241-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * sync: correct timestamp discontinuities in sync instead of reader This patch passes discontinuity information through the pipeline till it reaches sync.c. The timestamps are passed through the pipeline as read and unmodified to sync.c (instead of attempting to correct discontinuities in reader). In sync, when we see a discontinuity, we know where the next timestamp should be based on the timestamp and duration of the previous buffer (before the discontinuity). So we calculate an "SCR" offset based on the timestamp after the discontinuity and what we calculate it should be. The old discontinuity handling code was broken due to the following. The MPEG STD timing model relies heavily on the decoder having an STC that is phase lock looped to the PCRs in the stream. When decoding a broadcast stream, the decoder can count on the time measure between PCRs using the STC to match to a high degree of accuracy. I.e. STC - lastSTC == PCR - lastPCR. When a discontinuity occurs, the decoder calculates a new PCR offset = PCR - STC. I.e. the offset is the new PCR value minus what it would have been if there had been no discontinuity. The above does not work without a reliable STC, which we do not have. We have been attempting to approximate one by avereraging the duration of received packets and extrapolating an "STC" based on the last PTS and the average packet duration. But this is highly variable and unreliable. * decavcodec: fix data type of next_pts It needs to be double so that partial ticks are not lost * deccc608sub: clarify comment * sync: allow queueing more audio Audio is small, and there is often a significant amount of audio in the stream before the first video frame. * sync: improve handling of damaged streams When data is missing, the audio decoder was extrapolating timestamps from the last pts before the error caused by the missing data which caused sync issues. Also, missing data can cause the video decoder to output a frame out of order with the wrong scr sequence. Drop such frames.
* Update copyright dates to 2016.Bradley Sepos2016-01-011-1/+1
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* libhb: Use a buffer flat to indicate EOFjstebbins2015-05-011-1/+1
| | | | | | | | | | | | ... instead of a 0 length buffer. This fixes this issue: https://forum.handbrake.fr/viewtopic.php?f=12&t=31959 Theora can create 0 length output. These 0 length frames indicate duplicate frames. So we can't use 0 length buffers to indicate the end of the stream. git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@7143 b64f7644-9d1e-0410-96f1-a4d463321fa5
* text subtitles: make font height independent of croppingjstebbins2015-04-101-1/+2
| | | | git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@7078 b64f7644-9d1e-0410-96f1-a4d463321fa5
* deccc608sub: improve CC positioningjstebbins2015-04-051-1/+2
| | | | | | | | The safe zone margin was not wide enough and the font size was a little too small. git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@7063 b64f7644-9d1e-0410-96f1-a4d463321fa5
* deccc608sub: fix column alignment issuesjstebbins2015-04-051-1/+1
| | | | | | | | Use a fixed width font, and insert hard spaces where necessary to allign columns correctly in multi-line CCs. git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@7061 b64f7644-9d1e-0410-96f1-a4d463321fa5
* Update year to 2015.bradleys2015-02-011-1/+1
| | | | git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6852 b64f7644-9d1e-0410-96f1-a4d463321fa5
* json: add json APIsjstebbins2014-12-161-2/+2
| | | | | | | | | | There are several changes to job and title structs that break current windows interop code. The interop code should be changed such that it only uses json APIs. So if there is any missing features (or bugs) in these APIs, please let me know. git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6602 b64f7644-9d1e-0410-96f1-a4d463321fa5
* libhb: remove emptry tx3g subtitlesjstebbins2014-08-271-3/+12
| | | | | | | We don't need the empty subtitle buffers. git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6373 b64f7644-9d1e-0410-96f1-a4d463321fa5
* Convert all text subtitles to ASS subsjstebbins2014-04-131-101/+132
| | | | | | | | | Add support for font color to tx3g. Allow more than one style flag at time in tx3g. Add positioning support to CC subs git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6163 b64f7644-9d1e-0410-96f1-a4d463321fa5
* Update some copyright dates to 2014.Rodeo2014-02-181-1/+1
| | | | git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6042 b64f7644-9d1e-0410-96f1-a4d463321fa5
* libhb: add experimental avformat muxer for mkv and mp4jstebbins2013-06-301-0/+1
| | | | git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5620 b64f7644-9d1e-0410-96f1-a4d463321fa5
* decssasub, dectx3gsub: fix writing past hb_buffer_t data[size - 1].Rodeo2013-04-101-4/+4
| | | | | | | | | | This is not safe and causes subtitle corruption. Same fix as SVN revision 5346 for the remaining text-based subtitle deocders. git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5390 b64f7644-9d1e-0410-96f1-a4d463321fa5
* Updated all the copyright headers to 2013.sr552013-03-091-1/+1
| | | | git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5318 b64f7644-9d1e-0410-96f1-a4d463321fa5
* Updated file copyright / GPL headerssr552012-06-151-3/+7
| | | | git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@4737 b64f7644-9d1e-0410-96f1-a4d463321fa5
* Rework filter pipelinejstebbins2012-03-271-3/+3
| | | | | | | | | | | | | | | | | | | | This patch enhances the filter objects. The 2 key improvements are: 1. A filter can change the image dimensions as frames pass through it. 2. A filter can output more than one frame. In addition, I have: Moved cropping & scalling into a filter object Added 90 degree rotation to the rotate filter Moved subtitle burn-in rendering to a filter object. Moved VFR/CFR handling into a framerate shaping filter object. Removed render.c since all it's responsibilities got moved to filters. Improves VOBSUB and SSA subtitle handling. Allows subtitle animations. SSA karaoke support. My apologies in advance if anything breaks ;) git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@4546 b64f7644-9d1e-0410-96f1-a4d463321fa5
* Add SSA subtitle supportjstebbins2010-06-011-13/+18
| | | | | | | Thanks to davidfster git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@3342 b64f7644-9d1e-0410-96f1-a4d463321fa5
* fix compiler warnings in several libhb filesjstebbins2010-05-301-2/+4
| | | | git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@3335 b64f7644-9d1e-0410-96f1-a4d463321fa5
* Universal Text Subtitle Support Initial Implementationdynaflash2010-05-041-0/+240
- Patch by davidfstr ... Thanks! - Adds support for reading TEXT subtitle tracks from file inputs - Tested combinations: -- MKV UTF-8 -> MKV UTF-8 (passthru) -- MKV UTF-8 -> MP4 TX3G (upconvert) -- MP4 TX3G -> MKV UTF-8 (downconvert) -- MP4 TX3G -> MP4 TX3G (downconvert to UTF-8 then upconvert) - Further explained here http://forum.handbrake.fr/viewtopic.php?f=4&t=16099 git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@3283 b64f7644-9d1e-0410-96f1-a4d463321fa5
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