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libdv ChangeLog

2006-09-25  Dan Dennedy <dan@dennedy.org>
	* libdv 1.0.0 release.

2006-09-03  Dan Dennedy <dan@dennedy.org>
	* libdv/encode.c, libdv/enc_output.c: apply patch (1550898) from Craig
	  Lawson to prevent noise when dv_encode_full_audio() is called with
	  zero samples.

2006-08-06  Dan Dennedy <dan@dennedy.org>
	* libdv/*.S: apply patch from Mike Frysinger <vapier@gentoo.org> to
	  cleanup assembly symbols by hiding them and/or setting their type.
	* configure.ac, Makefile.am: apply patch from Burkhard Plaum to 
	  automatically disable GTK-based features (playdv) when GTK+ 1.2
	  is not found and to fix dist make target behavior with GTK+ disabled.
	* libdv/Makefile.am: bump libtool revision.
	* configure.ac: bump project version to 1.0.0.

2006-04-10  Dan Dennedy <dan@dennedy.org>
	* playdv/playdv.c: bugfix segfault on exit due to dv_display_exit being
	  called twice.

2006-03-06  Dan Dennedy <dan@dennedy.org>
	* mmx.h: apply patches from Zan Lynx and Richard Guenther to fix x86
	  compilation on gcc 4.1.

2006-01-15  Dan Dennedy <dan@dennedy.org>
	* encode.c: apply patch from Burkhard Plaum to use gcc
	  destructor attribute to invoke dv_cleanup() when unloading
	  libdv after loading dynamically and thereby fixing a
	  memory leak.
	  
	* playdv.c: bugfix segfault on exit due to dv_display_exit()
	  being called twice: once in main() and second in atexit
	  handler created by dv_display. Thanks for hint provided
	  by Jean-Francois Panisset.

2005-01-31  Dan Dennedy <dan@dennedy.org>
	* *.S: apply patch from Nicholas Miell <nmiell@gmail.com>
	  to not require execution stack for assembler functions.

2004-12-20  Dan Dennedy <dan@dennedy.org>
	* vlc.h, mmx.h: apply patch from Daniel Kobras to improve
	  compile compatibillity by making extern inline, static inline.

2004-12-12  Dan Dennedy <dan@dennedy.org>
	* *_x86_64.S: apply patch from Dean Kolosiek to fix linker
	  compatibility.
	
2004-11-29  Charles "Buck" Krasic  <krasic@acm.org>
	* libdv 0.104 release

2004-11-29  Dan Dennedy <dan@dennedy.org>
	* libdv.pc: added -lm to make build more portable.

2004-10-19  Dan Dennedy <dan@dennedy.org>
	* applied x86-64 patch from Dean Kolosiek.

2004-07-14  Charles "Buck" Krasic  <krasic@acm.org>

* libdv 0.103 release
	* update README to note that "bootstrap" is now obolete in light of
	  autoreconf provided by autotools.
	* some updates to the build files resulting due to changes in
	  newer versions of autotools.
	* the goal is that one could build libdv from a distribution
	  tarball or even from CVS without autotools installed (one should
	  just need make and gcc).

2004-07-13  Dan Dennedy <dan@dennedy.org>
	* libdv/dv.h, dv_types.h, headers.c, encode.c: use inttypes.h instead of
	  stdint.h as it is more universal.
	* libdv/dv_types.h: remove unused static variables
	* libdv/dv1394.h: removed

2004-07-06  Dan Dennedy <dan@dennedy.org>
	* libdv/dv.c: fix SMPTE314M typo in dv_format_wide()

2004-07-05  Dan Dennedy <dan@dennedy.org>
	* libdv/encode.c: apply patch from Johannes Sixt to make encoder thread-safe
	  by mutex locks.
	* added libdv/enctest.c to test thread-safetiness of encoder (also from
	  Johannes Sixt).
	* libdv/enc_input.c: make ppm reader more compatible (specifically y4m2ppm).

2004-06-10  Dan Dennedy <dan@dennedy.org>
	* libdv/dv.c: apply patch from Johannes Sixt to fix race condition and bug
	  using deallocated memory.

2004-05-29  Dan Dennedy <dan@dennedy.org>
	* configure.ac, libdv.pc.in: remove gtk from libdv pkg-config dependencies
	  as the core lib has not required glib for some time now!
	* encodedv/dvconnect.c: disable paging for dvconnect's internal buffers
	  (patch from Daniel Kobras)

2004-05-13  Dan Dennedy <dan@dennedy.org>
	* libdv/dv.c: add another IEC widescreen code to dv_format_wide().

2004-03-15  Dan Dennedy <dan@dennedy.org>
	* libdv/dv.c: fix widescreen detection for SMPTE vs IEC.
	* libdv/dv.h, dv.c: added dv_format_letterbox()
	* libdv/audio.c, dv.h: added dv_is_normal_speed()

2004-01-19  Dan Dennedy <dan@dennedy.org>
	* libdv/enc_input.c: workaround potential V4L compilation error.
	  (bug 879258)
	* libdv/Makefile.am: set the AGE back to 0 on the current interface
	  version due to breaking binary compatibility.

2004-01-16  Charles 'Buck' Krasic  <krasic@acm.org>

* libdv 0.100 release

2004-01-13  Dan Dennedy <dan@dennedy.org>
	* encodedv/dvconnect.c: change a video1394 ioctl macro for better
	  kernel 2.6 compatibility.
	* libdv/enc_input.c: add luma clamping on pgm input luma for bug 874984.
	* configure.ac, playdv/Makefile.am: do not build playdv if no gtk, xv, or
	  sdl. Miscellaneous build fixes: no xv test if no gtk, permit cflags from
	  make command line.
	* encodedv/Makefile.am: build and install insert_audio.c as dubdv.
	* encodedv/dvdub.1, dvconnect.1: added man pages.
	* encodedv/dvconnect.c: make default video1394 device now /dev/video1394/0.
	* encodedv/dvavi.c, dvconnect.c: OS/X build fixes from Steven Schultz.
	* bump release version to 0.100 and increment libtool versions.
	* libdv/dv.c: apply patch from Mathias Herberts to try getting recording
	  date/time from vaux when ssyb fails.
	* libdv/dv.c, encode.c: ignore ntsc_setup options.

2004-01-04  Dan Dennedy <dan@dennedy.org>
	* encodedv/dvconnect.c, libdv/dv1394.h: fix for kernel 2.6 compatibility,
	  only backwards compatible to kernel 2.4.21.

2003-12-15  Dan Dennedy <dan@dennedy.org>
	* encode.c, dv.h: freeing the global mem in dv_encoder_free() is not safe
	  when working with multiple encoders and free-ing them at will.
	  Added dv_cleanup() to free memory allocated in dv_init().

2003-11-23  Stefan Lucke <stefan@lucke.in-berlin.de>
  * PAL fix for decode color rendering now in head
  * additional API functions:
      dv_get_num_samples (dv_decoder_t *dv)
      dv_get_num_channels (dv_decoder_t *dv)
      dv_get_raw_samples (dv_decoder_t *dv, int chan)
      dv_is_4ch (dv_decoder_t *dv)
      dv_is_PAL (dv_decoder_t *dv)
      dv_is_progressive (dv_decoder_t *dv)
      dv_set_quality (dv_decoder_t *dv, int q)
      dv_get_frequency (dv_decoder_t *dv)
   * removed some internal struct usage from playdv

2003-11-17  Dan Dennedy <dan@dennedy.org>
	* libdv/encode.c: revert change on encoder lookup table allocation.

2003-11-10  Dan Dennedy  <dan@dennedy.org>
	* libdv/dv.c, encode.c: bugfix thread safetiness of encoder.
	  In a threaded environment, one should call dv_init() to setup
	  libdv properly before dv_decoder_new() or dv_encoder_new().

2003-10-29  Dan Dennedy  <dan@dennedy.org>
	* libdv/parse.c: bugfix memory leak on error parsing header.
	* libdv/dv.c: bugfix memory leak on non-freed bitstream_t
	* libdv/dv.c, encode.c: remove encoder-specific malloc and init from
	  the decoder init path. bugfix memory leaks in vlc.

2003-10-27  Dan Dennedy  <dan@dennedy.org>
	* libdv/enc_output.c, audio.c: fix speed flag handling for SMPTE 314M

2003-10-20  Charles 'Buck' Krasic  <krasic@acm.org>

* Change license to LGPL, with permission of all the authors.

2003-09-23 Stefan Lucke <stefan@lucke.in-berlin.de>
        * keep deemphasis filter state across frame boundaries
	* extend audio frequency table with additional undefined entries.

2003-08-20 Dan Dennedy <dan@dennedy.org>
	* headers.c: correct target[3] that indicates NTSC/PAL to 
	  correct values based upon my SMPTE 314M spec and data samples

2003-07-22 Dan Dennedy <dan@dennedy.org>
	* applied feature patches to insert_audio.c and dvconnect.c from 
	  Marko M�el�

2003-07-08 Stefan Lucke <stefan@lucke.in-berlin.de>
        * applied yv12 part of transcode's patch (by Thomas �treich)

2003-07-05 Stefan Lucke <stefan@lucke.in-berlin.de>
        * added audio correction for single sample failure (by Jan Schmidt)

2003-06-13  Dan Dennedy <dan@dennedy.org>
	* added dv_get_ssyb_pack()
	* encode.c: bugfix default encoding params result in poor quality due to 
	  not setting DCT method.
	* dvconnect.c: bugfix fopen mode on capture spotted by Marko M�el�
	* dv.c, audio.c: cleanup compilation warnings.

2003-05-17  Charles Yates <charles.yates@pandora.be>
	* parse.c: bugfix memory leak spotted by Jamie Shutler and Mike Grant.

2003-01-19 Stefan Lucke <Stefan.Lucke1@epost.de>
        * 4 channel audio support for 32kHz 12bit
          default behaviour is mixing both channels (res = ch0 / 2 + ch1 / 2),
          this way it breaks no applications.
          - new functions:
            dv_set_mixing_level (dv, level)
            dv_is_new_recording (dv, buffer)
        * updated playdv's man page (still some TODOs)

2003-01-02  Charles 'Buck' Krasic  <krasic@acm.org>

* libdv 0.99 release.

2002-12-31 Dan Dennedy   <dan@dennedy.org>
	* playdv.c: apply patch from Timothy Shead to add --loop-count.
	* dvconnect.c, playdv.c: large file support.
	* all: apply patch from Daniel Kobras to qualify global symbols.
	* all: cleanup includes to include config.h at top of each .c and
	  to include libdv files from local instead of system local path.
	* enc_output.c: fix misleading comments for 12 vs. 16 bit audio.
	* libdv/Makefile.am: bump libtool versions.

2002-12-03 Charles Yates <charles.yates@pandora.be>
	*  added audio sample calculator:
	   libdv/dv_types.h: dv_encoder_t.samples_this_frame,
	   libdv/dv.h: dv_calculate_samples()

2002-11-26 Charles 'Buck' Krasic <krasic@acm.org>

* fixes to display.c so it builds with --disable-xv

2002-11-11  Dan Dennedy  <dan@dennedy.org>
	* apply XvShm portability patch to playdv/display.c.
	* apply build updates from Daniel Kobras to prevent core lib
	  from linking unncessary libs.

2002-11-11  Charles 'Buck' Krasic  <krasic@acm.org>

* apply patch to dvconnect.c from Charles Yates to fix stdin
	  and devfs usage.  
	* make dvconnect an part of libdv installation
	* some build tweaks, since I'm running RH8.0 now

2002-10-24  Dan Dennedy <dan@dennedy.org>
	* enc_audio_input.[ch]: bugfix audio encoding due to change in
	  max audio samples constant. Increase internal audio buffers to 
	  4 channels to plan for future enhancement.

2002-09-03  Dan Dennedy <dan@dennedy.org>
	* bugfix to ignore ntsc setup option for PAL in lib encoder.

2002-07-30  Charles 'Buck' Krasic  <krasic@acm.org>
	* libdv 0.98 release.

* add configure script to CVS repository, to ease the pain of
	  dealing with autotools version messiness.

2002-07-30  Dan Dennedy <dan@dennedy.org>
	* applied patch from Steven Schultz <sms@2BSD.COM> to add
	  cross-platform checks for endian.h.
	* Reverted YUY2 big-endian code because most adapters expect
	  little endian even on big endian architectures(?). A PCI thing?

2002-07-24  Dan Dennedy <dan@dennedy.org>
	* enc_input.c: applied patch from Peter Schlaile for
	  NTSC encoding, and tested and debugged ppm and pgm input filters
	  and encode functions.

2002-07-05  Dan Dennedy <dan@dennedy.org>
	* dv.h, headers.c: added dv_encode_metadata() to write
	  recording datetime and timcode.
	* dv.h, headers.c: added dv_encode_timecode() to write
	  a frame count as timecode.

2002-06-27  Dan Dennedy <dan@dennedy.org>
	* YUY2.c:dv_YUY2_init(): clamp y lut to 0..255 when clamp_luma is false.
	* playdv/oss.c: init audio format in native instead of little endian.

2002-06-19  Dan Dennedy <dan@dennedy.org>
	* YUY2.c, bitstream.h, dv_types.h:
		big-endian fixes by Daniel Kobras
	* libdv.pc.in, configure.ac:
		remove glib/gtk, add popt dependencies by Daniel Kobras
	* libdv/Makefile.am: bump libtool version to 2:0:0
	* configure.ac: bump package version to 0.9.6

2002-05-26  Stefan Lucke <Stefan.Lucke1@epost.de>
	* apply portability patch of Steven M. Schultz
	* fix off by one in rgb.c array bounds check
	
2002-05-23  Stefan Lucke <Stefan.Lucke1@epost.de>
	* bugfix for #440048, compile playdv with gtk support

2002-05-22  Stefan Lucke <Stefan.Lucke1@epost.de>
	* added clamping for rgb render too. (green speckle bug)

2002-05-22  Dan Dennedy <dan@dennedy.org>
	* dv.h: add int dv_get_recording_datetime_tm()

2002-05-21  Stefan Lucke <Stefan.Lucke1@epost.de>
	* avoid remaining shared memory segment after playdv crash
	* avoid decoder crash (bug #231580, #558590 etc.). There are some
	  viewable decoding errors now.
	* new clamping for NTSC Xv mmx + half high render.

2002-05-19  Stefan Lucke <Stefan.Lucke1@epost.de>
	* new clamping and addtitional half high renderer of PAL Xv mmx.
	* modified format of audio error reporting
	* additional error reporting of video errors
	  example of messages written to stderr
		ver 00:01:18.21 2001-11-11 14:26:34 9f a7 37 a8
		abf 00:01:40.18 2001-11-11 14:26:56 7f 37 00 12

2002-05-17  Dan Dennedy <dan@dennedy.org>
	* apply patch from Daniel Kobras (bug 544185) to fix compile on
	  non-x86 architecture.
	  
	* add const qualifier to input buffer parameter on
	  dv_decode_full_audio, dv_parse_audio_header, dv_update_num_samples,
	  and dv_decode_audio_block. This makes Kino's Frame::ExtractAudio
	  happy.

2002-05-01  Stefan Lucke <Stefan.Lucke1@epost.de>
	* audio error correction:
	    default error reporting is set to: stderr
	      old_file = dv_set_error_log (decoder, stderr)      
      
	    default correction method is set to: DV_AUDIO_CORRECT_AVERAGE
	      old_method = dv_set_audio_correction (decoder, NEW_METHOD);      
	      NEW_METHOD = DV_AUDIO_CORRECT_NONE |
	                   DV_AUDIO_CORRECT_AVERAGE |
	                   DV_AUDIO_CORRECT_SILENCE
          
	* updated my old invalid email addresses 
  
2002-04-07  Charles 'Buck' Krasic  <krasic@acm.org>
	* Version 0.9.5

* Build fixups for 0.9.5 release.  For now, stop using an
	  auxiliary directory (was config).  The current release of
	  libtool has a bug where it looks to configure.in for that, which
	  we no longer have, and so it gets terribly confused.  Some
	  changes to bootstrap to get the right versions of autotools.
	  This needs more work.  Autotools sure can be a pain.
	
2002-04-04  Dan Dennedy <dan@dennedy.org>
	* Fix type mismatch in dv_oss_t.arg_audio_device
	
	* Set default playdv audio device to /dev/dsp
	
	* Fix build system to include gtk+ cflags and libs only for playdv

2002-30-03  Dan Dennedy <dan@dennedy.org>
	* Apply bugfix from Peter Schlaile to ppm_copy_ntsc_c block.
	
	* Added reppm.c test utility to test RGB recoding. Recode
	  now tests YUV recoding. Both recode 5 times to evaluate
	  multi-generation loss.
	
	* Apply patch #533329 from Erik Walthinsen to remove glib
	  dependencies in library. Still need to modify build.
	
	* Added new options to disable luma and chroma clamping.
	  The decoder's YUY2 MMX routines do not yet do any 
	  chroma clamping regardless of option.
	
	* Added new options to enable addition and removal of
	  North American NTSC 7.5 IRE setup.
	  
	* Added dv_decoder_free(), dv_reconfigure(), dv_encoder_new(),
	  and dv_encoder_free(). Use dv_reconfigure() to reconfigure
	  clamping options.
	  
	* Enhanced dv_decoder_new() and dv_encoder_new() to automatically
	  invoke dv_init(). You no longer need to explicitly call dv_init().
	  
	* bugfix: offset luma -16 in rgb decoding (See Charles Poynton's
	  Color FAQ). The encoder already properly offsets luma +16 on
	  rgb input; without the -16 luma offset in the decoder
	  recoding in rgb results in a positive luma shift.
	  
	* Tested decoder thread safetiness to confirm it is thread
	  safe.
	  
	* Modified dvplay to add option for NTSC setup (default on)
	  for best preview quality.
	  
	* Updated dvconnect from Peter Schlaile to fix a restore bug
	  and add round robin real-time scheduling.

2002-23-02  Dan Dennedy <dan@dennedy.org>
	* Added public (shared object) interface to encoder: see dv.h

* Added dv1394.h header to support apps needing to use
	  dv1394 IOCTL interface

* Added recode.c test utility

* Changed configure.in to configure.ac to invoke proper
	  version of autoconf on Debian

* Applied patch from Peter Schlaile to repair encode during
	  build on non x86 architectures

2002-07-02  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	* New dvconnect version featuring 
	  - multi-threading and buffer control
	  - new video1394 interface support
	  - underrun picture support
	
	* Updated insert_audio to plugin interface
	
	* Added dvavi, a small utility to convert DV-AVIs to RAW-DV
	
	* Added wide-screen option to encoder
	
	* Made the encoder detect PAL/NTSC on /dev/video input
	
	* Various bugfixes

2001-10-27  Charles 'Buck' Krasic  <krasic@acm.org>

* Apply bugfix from bug report #448856 submitted by Tristan Dufay.

* Apply patch #475394: "Fix for mmx_ok SEGV with broken gcc-fPIC"
	  submitted by David Daney.

2001-06-24  Charles 'Buck' Krasic  <krasic@acm.org>

* Version 0.9

* Apply Stefan Lucke's Xv/PPC/PAL patch.

* Move bootstrap to bleeding edge autotools, with checks in
	  bootstrap for the proper versions.  Add support for pkgconfig.
 
	* Make build more quiet.  Fixups for some gcc warnings.

2001-06-24  Daniel Kobras <kobras@tat.physik.uni-tuebingen.de>

* Fix enc_input.c with non-asm.

2001-06-24  <zybi@users.sourceforge.net>

* Important bugfix.  RedHat 7.1 gcc was generating invalid code
	  for expression in weighting.c.  This was causing video artifacts and crashes.
	  Workaround found by changing the expression gcc was messing up on.

* New option for selecting Xvideo port.  nVidia drivers have now 2
	  Xvideo adaptors: `Video overlay' (1 port) and `Video blitter' (32 ports).
	  Matrox G series have a similar option.  This patch allows to select any of 
	  their ports.

2001-06-05  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	* Added dvconnect. A small utility to grab and send dv data over
	  firewire
	
	* Added --no-mmap option to playdv in order to handle pipes correctly
	
	* Various bugfixes

2001-04-26  Charles 'Buck' Krasic  <krasic@acm.org>
	* Version 0.8

* Restructure source: make subdirectories libdv, playdv, and
	  encodedv.  This starts to fix some of the #include problems.

* Fix typos: missing #ifdef ARCH_X86 around #include "mmx.h"
	
2001-04-14  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	* Removed "bttv bug work around". It was my VIA board...
	
	* Changed DV_WIDTH in rgbtoyuv to make things more clear and compile
	  on more platforms
	
	* need_dct_248 now uses the ratio between field error and error in 
	  x-direction. Hopefully fixes  encoding of cartoons with hard edges.
	
	* --force-dct added. Just in case.
	
	* Added updated man page for encodedv
	
2001-04-07  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	* VLC encoder improvements: static qno tables for 3 passes
	
	* audio support for the encoder (plugin system with wav and /dev/dsp
	  support)
	
	* renamed build_coeff to fill_macroblock and moved it into the
	  input filter. Wrote specialized mmx copy routines. 
	  -> now we _are_ realtime on an Athlon 800 even with 3 VLC passes 
	  (static qno tables!) It's time to throw the video recorder away ;-)
	
	* New option: --fps : select frames per second if your machine isn't
	  fast enough for the full bandwidth
	
	* Interface changes: -t renamed to -v since it gives additional
	  verbose output now.
	
	* pgm support for mpeg2dec

2001-03-30  Stefan Lucke <Stefan.Lucke@snafu.de>
	* New options (available for Xv only):
		--aspect ([w|wide|n|normal])
		--size (10 .. 100)

* Reenabled scaling with Xv. Aspect ratio is keept constant when
	  --aspect option is specified. This depends on used window
	  manager too. KDE :-(( , fvwm, enlightment :-)

* Changed all render functions to have the same paramerlist

* Bug fixes:
	  According to SDL linux FAQ: Applications which support
	  SDL should have an sdl.m4 file in their config.
	
	  Assembler error messages with encode_x86.S
	  my one does not like div operations with defines.
	  replaced DV_WIDTH/2 by DV_WIDTH_2	
		
2001-03-29  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	* VLC encoder improvements: Now it's more correct for 3 passes (but
	  also slower...), faster for 2 passes. Implemented turbo mode 
	  (static qno tables). Hopefully makes the thing finally realtime on 
	  an Athlon 800...
	* Separated out the input and output queue. Build general input and
	  output filter plugin system. Included /dev/video support.
	* several assembler optimized routines in the vlc encoder added, 
	  reorder_88 code is now merged with the DCT postscaler to fill the 
	  integer pipelines _and_ the MMX pipelines
	* renamed encode to encodedv
	* removed blur function since it doesn't make sense
	* corrected (?) faster C version of convert_to_yuv
	
2001-03-19  Charles 'Buck' Krasic  <krasic@acm.org>

* Version 0.7

* Faster C version of convert_to_yuv from Andreas Wacker.

* Compilation fixups for building without Xv, and without x86 asm.

2001-03-17  Charles 'Buck' Krasic  <krasic@acm.org>

* Typo fix:  swab32 for big endian.

2001-03-09  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	* VLC encoder improvements: Now we do 3 passes and we do it even
	  better than my Sony Camcorder ;-)
	
	* need_dct_248 fixes, weighting fixes, seperated out the header
	  writer and a lot more things I've forgotten
	
	* NTSC encoding works now really
	
	* rgbtoyuv now adapts correctly to the encoding system (PAL or NTSC)

2001-03-05  Charles 'Buck' Krasic  <krasic@acm.org>

* Version 0.6

* Compile fixups to dct.c and encode.c for --disable-asm

2001-03-05  Thom van Os <thom@vanos.com>

* NTSC encoding fixups.

2001-03-05  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	
	* Encoder speedups (factor 3 from realtime on my machine, it even
	  beats playdv using gtk display ;-) )

* Fixed stupid need_dct_248() bug

* Correct(tm) and faster quantization

2001-02-14  Charles 'Buck' Krasic  <krasic@acm.org>

* Version 0.5

* Integrate patch #103780 "encoder and ppmqscale improvements",
	  from Peter Schlaile (see below)

* Bump libtool library version number to reflect dv_init()
	  interface change.

* Bug fix for bug #131581: 
	  "Initializating multiple dv_decoder_t	objects fails".

Changed dv_init() to remove dependence on per-stream object, and
	  ignore multiple invocations.

* Bugfix from Stefan Lucke for recent PAL breakage.

* Cleaner rpm rule in Makefile.am

2001-02-14  Peter Schlaile <udbz@rz.uni-karlsruhe.de>

* Again encoder speedups.
	
	* Fixed serious quant bugs (divide != shift!!!!)
	
	* Implemented DCT248 AAN version in C and MMX
	
	* Integrated use of DCT248 (somewhat experimental. My camcorder
	  apparently uses motion detection for this one...)
	
	* General code cleanups
	
	* ppmqscale can now shrink pictures
	
	* Added a lot of FIXMEs so other people can also improve things
	  (hint, hint ;-)
	
2001-02-08  Charles 'Buck' Krasic  <krasic@acm.org>

* Add --enable-gprof to configure.  Disable SDL by default.  Minor
	  fixups in display.c for missing #if HAVE_GTK and #if HAVE_SDL.

2001-02-07  Charles 'Buck' Krasic  <krasic@acm.org>

* Version 0.4.

* Cosmetic nit:  move to consistent use of C style comments.

* Integrate patch from Scott F. Johnston for non-gcc non-x86
	  architectures.  Add untested fixed_multiply to idct_248.c for
	  non-gcc non-x86 architectures.  Also disable popt on non-gcc,
	  since our popt code uses gcc struct initialization extension
	  heavily.

* Integrate patch from Stefan Lucke for aspect-ratio handling
	  with Xv based display.

2001-02-06  Charles 'Buck' Krasic  <krasic@acm.org>

* Integrate patch from Stefan Lucke for various speedups:

- replace pointer dereferences with indexed accesses.

- merge 248 idct prescale into 248 quant.

- change IEC PAL (420) to generate YUY2 instead of YV12.

Is this really faster?  If so, I am suprised.  I have added a
	     configure option to allow choosing which version to build
	     (YUY2 is default), so I can verify the performance comparison.

- Fix to Makefile.vanilla to include util.c in build.

- still to do: it looks like there are incompatable versions of
	     popt around.  Need to add a configure check to figure out
	     whether filename needs to be declared as a const char *.

* Change license banner to read "a free DV codec" instead of "a
	  free decoder".

* Add the banner to files that didn't have it.

2001-02-03  Peter Schlaile <udbz@rz.uni-karlsruhe.de>

* Additional encoder speedups and improvements it now also uses
	  popt, can read ppm-streams, can correct wrongly interlaced input
	  pictures.  Speedups: we are between 4 and 5 times away from
	  realtime on my AMD K6/400 ;-) slowest part is now the RGB to YUV
	  conversion.	
	
	* added new program
	  - ppmqscale           quality (and quick) ppm scaler.Use it like this
	                        cat *.ppm |ppmqscale 720 576 |encode -- -
	                        does linear interpolation, next thing is
				MMX optimization for it.
	
	* playdv can now write ppm-streams  
	  
2001-01-20  Charles 'Buck' Krasic  <krasic@acm.org>

* version 0.3

* Minor configure.in cleanups.

* Add Peter's new utilities to Makefile.am.  Minor cleanups for
	  -Wall.

2001-01-20  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	
	* Made encoder finally work correctly for DCT 88
	  Inserted META information
	
	* Added playdv option: dump frames
	
	* added new programs: 
	  - insert_audio        Audio dub an existing video stream
	                        or just copy audio data to DV using 
	                        insert_audio [wav_file] <<EOF |dvsend
	                        EOF
	  - fix_headers         Fix old encoded dv files without 
	                        meta information
	  - scan_packet_headers Dump dv files in a nice way. 
	                        (Take a look how badly encode 
	                        still performs... )
	  - steal_headers       Copy meta headers from a captured stream for
	                        testing.
	
2001-01-18  Charles 'Buck' Krasic  <krasic@acm.org>

* Create a rpm .spec.in file.  configure generates the .spec.
	  Makefile.am has a rpm target.  Update the README.  Add a debug
	  option to configure to control "-g" in CFLAGS.

2001-01-16  Charles 'Buck' Krasic  <krasic@acm.org>

* Add alternate definitions of bitfield structs for architectures
	  with big-endian bitfields.

* Add AC_C_BIGENDIAN to configure.in.

* Makefile.am tweeks: Add ac_c_bigendian_cross.m4 to
	  AUX_DIST_EXTRA; eliminate duplicate references to header files.

* Move bitstream_t to dv_types.h.  Remove a few #include
	  "bitstream.h"'s as a result.

* Make definition swab32() conditional on WORDS_BIGENDIAN.

* New autoconf macro for testing endianness.  The stock autoconf
	  test doesn't work with cross-compiling, and autoconf generates a
	  warning to that effect.

2001-01-14  Charles 'Buck' Krasic  <krasic@acm.org>

* Add bgr0 support for kino submitted by Arne Schirmacher
	  <arne@schirmacher.de>.

* Add command line option interface to playdv, using popt.

* Add more audio code structure; pre-emphasis, speed detection
	  (only play normal speed audio).

* Header file re-structuring.  Move types to new dv_types.h;
	  enclose declarations in extern "C" for C++ compatibility;
	  replace leading '_' from preprocessor symbols with 'DV_'
	  prefix.

* Add exit() handler to avoid Sys V shmem leak with Xv.  (Still
	  have to do SDL, and gtk).

* Add _GNU_SOURCE define, enabling large (>2GB) file support.
	
2001-01-08  Charles 'Buck' Krasic  <krasic@acm.org>

* Add preliminary support for audio.  New files are audio.[ch]
	  which does the unshuffling, and oss.[ch] which is provides an
	  example of playout via the OSS sound API.
 
2000-12-27  Peter Schlaile <udbz@rz.uni-karlsruhe.de>
	* Integrated MMX/ASM-optimizations into the encoder. 
	  (YUV, DCT88, quant)
	  The YUV conversion is 2 bits more accurate than before, the DCT
	  is somewhat less accurate (approximately 1 or 2 bits) so it
	  should be more or less the same as the old C code. Best thing:
	  it is 8 times faster now!
	
2000-12-21  Charles 'Buck' Krasic  <krasic@acm.org>

* Applied outstanding patch submissions.  The major parts included
	getting the encoder to build again, and autotool'ing the build.
	This ChangeLog files is far from complete.  The log
	information in CVS is where most of the changes are documented.
 
2000-05-08  Charlie Krasic  <krasic@cse.ogi.edu>

* Moved to macroblock at a time color conversion, based on the work
 	  of Scott F. Johnston <scott@fleetingimage.com>.  I rewrote his
 	  shuffle code.  Partly so I could understand it better (I added
 	  lots of comments), and also I did the PAL version too.  I decided
 	  to leave mapping between dif blocks/segments and superblock
 	  row/columns to the parse code.  I took his block at a time ycrcb
 	  conversion directly, except for making clamp_y lookup based.

2000-05-05  Charles 'Buck' Krasic  <krasic@acm.org>

* New idct code for 2-4-8.  It's an integer version, based on an
 	approach like that of the AAN algorithm.  Next step will be to MMX
 	it.

2000-04-20  Charles 'Buck' Krasic  <krasic@acm.org>

* place.c: Fixes to 4:2:0 placement.  Color resembles something
 	like correct now. :}

* Add initial macroblock placement for 4:2:0 (IEC61834).  Initial
 	  test shows luma is OK, but color isn't working correctly.
 
2000-04-19  Erik Walthinnsen (Omega)  <omega@cse.ogi.edu>

* Added rudimentary PAL decoding, as well as a way to
 	  differentiate between IEC61834 and SMPTE314M video, which is
 	  critical for dealing with PAL data.

2000-04-18  Charles 'Buck' Krasic  <krasic@acm.org>

* Version 0.1 - first release at libdv.sourceforge.net

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