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35 Commits

Author SHA1 Message Date
Stefano Sabatini
9921613e82 vf_drawtext: apply misc style fixes 2011-09-25 22:47:51 +02:00
Stefano Sabatini
80daa247d8 vf_drawtext: do not reset "n" variable to 0 in case the filter is reinited 2011-09-25 22:47:51 +02:00
Stefano Sabatini
87f5e79732 vf_drawtext: use ctx for expressing outlink and dtext in end_frame 
(Very) slighly improve readability.
 2011-09-24 12:37:12 +02:00
Stefano Sabatini
3de684206e vf_drawtext: perform misc cosmetics changes to uninit 
In particular:
* lexically sort strings freeing commands
* logically group freeing instructions
* prefer NULL over 0 when setting dtext->glyphs
 2011-09-24 12:37:03 +02:00
Stefano Sabatini
275516f87c vf_drawtext: set string defaults in the options array 
Simplify.
 2011-09-24 12:36:55 +02:00
Stefano Sabatini
482ce0ce4e vf_drawtext: make x and y options parametric 
Address trac issue #378.
 2011-09-24 12:36:48 +02:00
Stefano Sabatini
163854bca0 vf_drawtext: drop text wrapping feature 
Or in other word, do not go to the next line when the text cannot be
rendered within the frame.

The rationale is that wrapping is hard to manage, as it depends on the
position of the text, thus making hard/impossible to compute the size
occupied by the rendered text, and makes the filter behavior
unpredictible with moving text (implemented in a pending patch).

Also the current wrapping code is very limited (for example it splits
words in the middle), and correctly handling wrapping requires much
more complexity (alignment, gravity, word parsing etc.), while
drawtext is meant to be only a thin wrapper around libfreetype, so
such advanced features don't belong here.
 2011-09-24 12:36:39 +02:00
Stefano Sabatini
b87d4c2b9f vf_drawtext: do not set limitations on fontsize 
It may be needed to use values greater than 72, and in general greater
than an arbitrary big value. Let the user choose what's too big for
her.
 2011-09-23 01:35:38 +02:00
Stefano Sabatini
3a87dce6bf vf_drawtext: remove useless and misnamed intermediary "baseline" variable in draw_text() 2011-09-22 00:45:59 +02:00
Stefano Sabatini
500b3210da vf_drawtext: fix background box coloring with RGB formats != RGBA 
drawbox() expects a color specified in RGBA format, while the code was
providing a color with the components specified in the same order of
the input pixel format.

In particular, fix box coloring with AXXX RGB formats.
 2011-09-22 00:45:59 +02:00
Stefano Sabatini
db56a7507e vf_drawtext: prefer int over unsigned int 
This avoids overflow errors when the considered x and y values are
negative, as required by the incoming patches.
 2011-09-22 00:45:59 +02:00
Michael Niedermayer
f1b5693027 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  Add LATM muxer
  v210enc: clip values according to specifications
  v210enc: switch to PIX_FMT_422P10
  v210dec: switch to PIX_FMT_422P10
  AVOptions: remove AVOption.offset <= 0 checks
  AVOptions: deprecate av_opt_set_defaults2
  AVOptions: move doxy for av_opt_set_defaults() from opt.c to opt.h
  libx264: fix setting some more parameters
  libx264: fix setting the H.264 level
  libx264: add 'direct-pred' private option
  libx264: add 'partitions' private option

Conflicts:
	Changelog
	libavcodec/Makefile
	libavcodec/libx264.c
	libavcodec/v210enc.c
	libavfilter/src_movie.c
	libavformat/version.h
	libavutil/opt.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2011-09-07 22:58:39 +02:00
Anton Khirnov
79eff91325 AVOptions: deprecate av_opt_set_defaults2 
It's a hack which was created to allow for multiple options with
different defaults to refer to same field (e.g. 'b' vs 'ab'). There is
no need for it anymore.
 2011-09-07 11:19:43 +02:00
Michael Niedermayer
845383c358 vf_drawtext: always use expanded_text as we always support strftime() now and dont depend on localtime_r() anymore 
Found-by: Rolf Siegrist
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-09-05 23:13:59 +02:00
Michael Niedermayer
038a465efc vf_drawtext: make strftime work without localtime_r() 
modern OS should have localtime_r() or return thread locals on localtime() hopefully

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-09-05 05:16:44 +02:00
Michael Niedermayer
b881a2e254 vf_drawtext: Fix reinit to allow color changes. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-09-04 20:58:13 +02:00
Michael Niedermayer
595cfdef97 vf_drawtext: add basetime argument to allow specifying the wall clock time of PTS=0 
the basetime argument also enables useage of pts instead of time()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-08-30 23:37:49 +02:00
Michael Niedermayer
3016c7f543 vf_drawtext: fix segfault on reinit 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-08-30 20:25:58 +02:00
Michael Niedermayer
f782ce3b4d drawtext: Support changing parameters through reinit command at runtime. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-08-29 20:16:08 +02:00
Michael Niedermayer
5d1b39f7e7 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  build: clean up library installation rules
  vf_drawtext: Remove some write-only variables.
  libgsm: Drop const qualifier to silence compiler warning.
  docs: Remove needless configure options
  docs: Don't recommend adding --enable-memalign-hack
  libvo-amrwbenc: Add braces to shut up gcc warning.
  adts: Fix PCE copying.

Conflicts:
	configure
	doc/general.texi
	subdir.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2011-07-08 01:05:28 +02:00
Diego Biurrun
965fdda015 vf_drawtext: Remove some write-only variables. 
libavfilter/vf_drawtext.c:427:22: warning: variable 'dst_pixel' set but not used
libavfilter/vf_drawtext.c:463:22: warning: variable 'dst_pixel' set but not used
 2011-07-07 17:32:50 +02:00
Stefano Sabatini
702a62a1c6 drawtext: add braces around initialisers for option defaults 
Fix warnings of the type:
vf_drawtext.c:NNN: warning: missing braces around initializer
vf_drawtext.c:NNN: warning: (near initialization for ‘drawtext_options[X].default_val’)

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-06-20 20:54:40 +02:00
Stefano Sabatini
53a715f576 drawtext: reindent after the previous commit 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-06-20 20:54:40 +02:00
Stefano Sabatini
3fd53defaa drawtext: fix strftime() text expansion 
The feature was dropped after the filter was partially rewritten and
recommitted.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-06-20 20:54:40 +02:00
Mina Nagy Zaki
fd2c0a5db2 lavfi: add layout negotiation fields and helper functions. 2011-06-19 22:58:32 +02:00
Diego Biurrun
5ac4952a58 vf_drawtext: Replace FFmpeg by Libav in license boilerplate. 2011-05-31 21:15:49 +02:00
Stefano Sabatini
d8c7a21602 drawtext: specify union type for setting default options 
Fix warnings of the type:
vf_drawtext.c:NNN: warning: missing braces around initializer
vf_drawtext.c:NNN: warning: (near initialization for ‘drawtext_options[X].default_val’)
 2011-05-16 23:50:43 +02:00
Stefano Sabatini
e8ea9c2179 drawtext: reindent after the previous commit 2011-05-16 23:50:36 +02:00
Stefano Sabatini
ce207e050e drawtext: fix strftime() text expansion 
The feature was dropped after the filter was partially rewritten and
recommitted.

Fix issue #207.
 2011-05-16 23:50:29 +02:00
Michael Niedermayer
c5420f100f drawtext: add shadow support. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-05-07 10:21:56 +02:00
Michael Niedermayer
e73127a443 drawtext: factor draw_glyphs. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-05-07 10:21:56 +02:00
Michael Niedermayer
a5b81c317e drawtext: fix and optimize yuv blend. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-05-07 10:21:53 +02:00
Michael Niedermayer
3953a88014 drawtext: get rid of divisions in the inner loop. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-05-07 10:18:16 +02:00
Michael Niedermayer
e74bf3f368 drawtext: simplify chroma blend and fix chroma alpha. 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-05-07 10:18:16 +02:00
Stefano Sabatini
a5b64584f3 lavfi: Port drawtext filter by Hemanth from the libavfilter soc repo 
With the following additions:
* support to anti-aliased glyph rendering
* support to UTF-8 text and Unicode chars rendering
* support for RGB packed formats
* fix minor errors and typos in the filter description
* extend/clarify examples in the filter description

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-05-07 10:17:40 +02:00