| Commit message (Collapse) | Author | Age |
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Signed-off-by: Martin Storsjö <martin@martin.st>
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This reduces code duplication and prevents stale pointers from remaining
on the link.
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Directly forwarding the input buffer to the next filter means that
drawtext no longer owns any references to it and thus shouldn't refer to
it in any way.
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It is not used in any filters currently and is inherently evil. If
passing binary data to filters is required in the future, it should be
done with some AVOptions-based system.
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It will allow adding new fields to it without ABI breaks.
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They are only useful inside filters and we don't allow user filters for
now.
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It is only useful inside filters and we don't allow user filters for
now.
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Those functions are only useful inside filters. It is better to not
support user filters until the API is more stable.
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Before, drawtext filter deliberately altered given text coordinates if
text didn't fully fit on the picture. This breaks the use case of
scrolling large text, e.g. movie closing credits.
Add 'fix_bounds', to make it usable in such cases (by setting its value to 0).
Default behavior is not changed, and non-fitting text coords are fixed.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Before, {text_,}{w,h} vars hadn't got initialized
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Prevents uninitialized read.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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It slipped through the last two iterations.
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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Introduce variables "E", "PHI", "PI", "main_w"/"W", "main_h"/"H",
"text_w"/"w", "text_h"/"h", "x", "y", "n" and "t" in line with
vf_overlay and refactor the code accordingly.
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Call dtext_prepare_text as early as possible
Do not draw if the memory allocation failed
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Split the memory allocation from the actual drawing.
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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.
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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
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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>
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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The feature was dropped after the filter was partially rewritten and
recommitted.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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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>
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