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>
* qatar/master: (23 commits)
doc: Check standalone compilation before submitting new components.
Fix standalone compilation of pipe protocol.
Fix standalone compilation of ac3_fixed encoder.
Fix standalone compilation of binkaudio_dct / binkaudio_rdft decoders.
Fix standalone compilation of IMC decoder.
Fix standalone compilation of WTV demuxer.
Fix standalone compilation of MXPEG decoder.
flashsv: K&R cosmetics
matroskaenc: fix memory leak
vc1: make overlap filter for I-frames bit-exact.
vc1dec: use s->start/end_mb_y instead of passing them as function args.
Revert "VC1: merge idct8x8, coeff adjustments and put_pixels."
Replace strncpy() with av_strlcpy().
indeo3: Eliminate use of long.
get_bits: make cache unsigned to eliminate undefined signed overflow.
asfdec: fix assert failure on invalid files
avfilter: check malloc return values.
Not pulled as reason for reindent is not pulled: mpegvideo: reindent.
nutenc: check malloc return values.
Not pulled due to much simpler solution in ffmpeg *: don't av_malloc(0).
...
Conflicts:
doc/developer.texi
libavcodec/Makefile
libavcodec/get_bits.h
libavcodec/mpegvideo.c
libavformat/Makefile
libavutil/log.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Improve consistency with libavcodec.
This breaks libavfilter API/ABI.
The non-sequential 2.1.0 -> 2.4.0 bump is due to the mess previously
done with the lavfi minor number.
The sample aspect ratio is a per-frame property, so it makes sense to
define it in AVFrame rather than in the codec/stream context.
Simplify application-level sample aspect ratio information extraction,
and allow further simplifications.
This is similar to what was done with pkt_pts. This simplifies the
operation of extracting the pos information from the AVPacket, and
allows further simplifications.
* commit '85770f2a2651497861ed938efcd0df3696ff5e45':
AVOptions: make default_val a union, as proposed in AVOption2.
Move ff_dynarray_add to lavu and make it public.
lavf: remove duplicate assignment in avformat_alloc_context.
lavf: use designated initializers for AVClasses.
options: simplify av_find_opt by using av_next_option.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Also deprecate av_get_pict_type_char() in favor of
av_get_picture_type_char().
The new enum and av_get_picture_type_char() are defined in libavutil.
This allows the use in libavfilter without the need to link against
libavcodec.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Roger Pau Monné <roger.pau@entel.upc.edu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Also set movie->picref to NULL, in order to avoid a crash in uninit()
when movie->picref is unreffed again and it was already freed.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Make the filter accept parametric expressions for the output video
size.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
draw_slice() checks that the fade factor is < 65536 and only
calculates the fade if so. But the fade factor is clipped in
end_frame() by av_clip_uint16() to 65535, so the fade is calculated
for every frame. This patch alters the check so that it compares with
< 65535 (UINT16_MAX).
Signed-off-by: Anton Khirnov <anton@khirnov.net>
draw_slice() checks that planes 0 and 1 of AVFilterBufferRef's data
are not NULL before manipulating planes 1 and 2. This patch makes the
check against planes 1 and 2. More senseful and possibly more robust.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The old API was deprecated and will be possibly removed, fix warnings
in libavfilter/libmpcodecs/vf_geq.c and libavfilter/libmpcodecs/vf_qp.c.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
* qatar/master: (37 commits)
In avcodec_open(), set return code to an error value only when an error occurs instead of unconditionally at the start of the function.
lavc: remove reference to opt.h from Makefile.
prefer avio_check() over url_exist()
avio: remove AVIO_* access symbols in favor of new AVIO_FLAG_* symbols
lavu: remove misc disabled cruft
lavu: remove FF_API_OLD_IMAGE_NAMES cruft
NOT PULLED lavu: remove FF_API_OLD_EVAL_NAMES cruft
lavc: remove misc disabled cruft.
lavc: remove the FF_API_INOFFICIAL cruft.
lavc: remove the FF_API_SET_STRING_OLD cruft.
lavc: remove the FF_API_USE_LPC cruft.
lavc: remove the FF_API_SUBTITLE_OLD cruft.
lavc: remove the FF_API_VIDEO_OLD cruft.
lavc: remove the FF_API_AUDIO_OLD cruft.
lavc: remove the FF_API_OPT_SHOW cruft.
lavc: remove the FF_API_MM_FLAGS cruft.
lavf: remove misc disabled cruft.
lavf: remove FF_API_INDEX_BUILT cruft
lavf: remove FF_API_URL_CLASS cruft.
lavf: remove FF_API_SYMVER cruft
...
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Also set movie->picref to NULL, in order to avoid a crash in uninit()
when movie->picref is unreffed again and it was already freed.
Fix trac issue #66.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
* qatar/master:
ac3dec: fix processing of delta bit allocation information.
vc1: fix fate-vc1 after previous commit.
wmv3dec: fix playback of complex WMV3 files using simple_idct.
make av_dup_packet() more cautious on allocation failures
make containers pass palette change in AVPacket
introduce side information for AVPacket
Politic commits that have not been pulled:
Update regtest checksums after revision 6001dad.
Replace more FFmpeg references by Libav.
Replace references to ffmpeg-devel with libav-devel; fix roundup URL.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The constant values were never set, thus the evaluation of expressions
referencing those constants were resulting in an error.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Change:
Expected 7 arguments, but only %d found in '%s'\n
to:
Expected 7 arguments, but %d found in '%s'\n
as the user may provide more than 7 arguments, in that case the error
is not misleading.
* qatar/master:
fate: fix partial run when no samples path is specified
ARM: NEON fixed-point forward MDCT
ARM: NEON fixed-point FFT
lavf: bump minor version and add an APIChanges entry for avio changes
avio: simplify url_open_dyn_buf_internal by using avio_alloc_context()
avio: make url_fdopen internal.
avio: make url_open_dyn_packet_buf internal.
avio: avio_ prefix for url_close_dyn_buf
avio: avio_ prefix for url_open_dyn_buf
avio: introduce an AVIOContext.seekable field
ac3enc: use generic fixed-point mdct
lavfi: add fade filter
Change yadif to not use out of picture lines.
lavc: deprecate AVCodecContext.antialias_algo
lavc: mark mb_qmin/mb_qmax for removal on next major bump.
Conflicts:
doc/filters.texi
libavcodec/ac3enc_fixed.h
libavcodec/ac3enc_float.h
libavfilter/Makefile
libavfilter/allfilters.c
libavfilter/vf_fade.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Port fade filter from libavfilter soc repo, with minor fixes by
Stefano.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Make the mp wrapper accept the syntax mp=filter=params as alternative
to mp=filter:params. The alternative syntax is sligthly more readable
and should simplify copy&paste of MPlayer filter strings to the mp
filter.
Fixes issue2632 if interl=1 is used or the automatic interlace detection is enabled
and works. This has the advantage compared to the patch in issue2632 that it causes
no speed loss and it also works when scaling is used. The disadvantage is that
interlacing autodetection does not yet work very well it seems.
This is the same method mplayer uses
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
draw_slice() checks that the fade factor is < 65536 and only
calculates the fade if so. But the fade factor is clipped in
end_frame() by av_clip_uint16() to 65535, so the fade is calculated
for every frame. This patch alters the check so that it compares with
< 65535 (UINT16_MAX).
draw_slice() checks that planes 0 and 1 of AVFilterBufferRef's data
are not NULL before manipulating planes 1 and 2. This patch makes the
check against planes 1 and 2. More senseful and possibly more robust.
right now swab is defined in libavfilter/libmpcodecs/mpbswap.h
this breaks mingw32 cross compiles. since it its not used, it should be
removed. alternatively swab has to be added to HAVE_LIST in configure.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This fixes compilation with preprocessors which do not add whitespace
around replaced tokens, resulting in invalid expressions like 1--1.
Signed-off-by: Mans Rullgard <mans@mansr.com>
This fixes compilation with preprocessors which do not add whitespace
around replaced tokens, resulting in invalid expressions like 1--1.
Signed-off-by: Mans Rullgard <mans@mansr.com>
the following additions:
* support to anti-aliased glyph rendering
* support to UTF-8 text and Unicode chars rendering
* support for RGB packed formats
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Add drawutils.h and drawutils.c, and use them in the pad filter.
The new functions are going to be shared by other filters.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Add drawutils.h and drawutils.c, and use them in the pad filter.
The new functions are going to be shared by other filters.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
It is pretty hopeless that other considerable projects will adopt
libavutil alone in other projects. Projects that need small footprint
are better off with more specialized libraries such as gnulib or rather
just copy the necessary parts that they need. With this in mind, nobody
is helped by having libavutil and libavcore split. In order to ease
maintenance inside and around FFmpeg and to reduce confusion where to
put common code, avcore's functionality is merged (back) to avutil.
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Make avfilter_graph_free() free not only the internal structures, but
also the allocated graph, and set the graph pointer to NULL for
increased safety.
Simplify usage.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 4359288c56)
Make avfilter_graph_parse() only release the internal structures
allocated during the parsing, and leave to free the graph itself to
the calling code.
This approach looks cleaner, as the graph is not allocated by the
function.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e8e5dde779)
Make avfilter_graph_free() free not only the internal structures, but
also the allocated graph, and set the graph pointer to NULL for
increased safety.
Simplify usage.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Make avfilter_graph_parse() only release the internal structures
allocated during the parsing, and leave to free the graph itself to
the calling code.
This approach looks cleaner, as the graph is not allocated by the
function.
Signed-off-by: Mans Rullgard <mans@mansr.com>
That's required because -1 is evaluated as NAN, which converted back
to int looks like a random number, this is especially annoying when
debugging sources with undefined pos (as the video4linux2 device).
Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 3e5bc7ff6a)
That's required because -1 is evaluated as NAN, which converted back
to int looks like a random number, this is especially annoying when
debugging sources with undefined pos (as the video4linux2 device).
Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
This removes ff_get_ref_perms_string, ff_dprintf_ref and ff_dprintf_link
fro the interface of libavfilter.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit eb7ccf8f33)
This removes ff_get_ref_perms_string, ff_dprintf_ref and ff_dprintf_link
fro the interface of libavfilter.
Signed-off-by: Mans Rullgard <mans@mansr.com>
libavfilter/defaults.c: In function 'avfilter_default_get_audio_buffer':
libavfilter/defaults.c:129: warning: 'buf' is used uninitialized in this function
Originally committed as revision 26382 to svn://svn.ffmpeg.org/ffmpeg/trunk
More consistent with the rest of FFmpeg and sounds more natural to
English speaking people.
Originally committed as revision 26374 to svn://svn.ffmpeg.org/ffmpeg/trunk
Previously the pad filter just drawed borders in the surrounding of the input
without checking if this area was allocated or writeable. Now we check and
allocate a new buffer if the input is unsuitable.
Originally committed as revision 26315 to svn://svn.ffmpeg.org/ffmpeg/trunk
These fields are needed to be able to know which area of memory is allocated and
which is off limits.
This reverts 24291 and parts of r24424.
Originally committed as revision 26314 to svn://svn.ffmpeg.org/ffmpeg/trunk
evaluated crop area coordinates.
Prevent debug log spamming, define the DEBUG symbol for enabling them.
Originally committed as revision 26110 to svn://svn.ffmpeg.org/ffmpeg/trunk
FILTERNAME=ARGS and FILTERNAME:ARGS syntax.
The same filter class will be used for managing all the libopencv
filtering functions.
Originally committed as revision 26079 to svn://svn.ffmpeg.org/ffmpeg/trunk
commit ab8610aa176c13b5e25a2d8770df28a14665e169
Author: koorogi <koorogi@9553f0bf-9b14-0410-a0b8-cfaf0461ba5b>
Date: Thu Mar 18 23:13:04 2010 +0000
The vflip filter does not need to keep ownership of a picture reference.
Avoid creating and releasing useless extra picture references in the
start_frame and end_frame callbacks.
Originally committed as revision 22596 to svn://svn.ffmpeg.org/ffmpeg/trunk
The new reference creation is required when the linesizes are used by the
previous filters in the filterchain, for example as in "pad=W:H:X:Y,vflip".
Originally committed as revision 26059 to svn://svn.ffmpeg.org/ffmpeg/trunk
Patch by Nolan L nol888 <=> gmail >=< com.
See thread:
Subject: [FFmpeg-devel] [PATCH] Port gradfun to libavfilter (GCI)
Date: Mon, 29 Nov 2010 07:18:14 -0500
Originally committed as revision 25942 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcodec to libavcore.
Remove another compile-time dependancy of libavfilter on libavcodec.
Originally committed as revision 25923 to svn://svn.ffmpeg.org/ffmpeg/trunk
Make it accept the frei0r=filtername=params as alternative to
frei0r=filtername:params.
Originally committed as revision 25856 to svn://svn.ffmpeg.org/ffmpeg/trunk
Compute the outpicref PTS in start_frame(), since it is required for
comparing that value with the value of the overpicref.
Originally committed as revision 25828 to svn://svn.ffmpeg.org/ffmpeg/trunk
Fix issue #2269.
Interpolate pts for the second frame when using field output mode.
Originally committed as revision 25798 to svn://svn.ffmpeg.org/ffmpeg/trunk
This also allows to remove a linking dependency of libavfilter on
libavcodec.
Originally committed as revision 25789 to svn://svn.ffmpeg.org/ffmpeg/trunk
AV_PERM_REUSE and AV_PERM_REUSE2 flags, avoid conflict with the char
'r' used for AV_PERM_READ.
Originally committed as revision 25739 to svn://svn.ffmpeg.org/ffmpeg/trunk
ff_avfilter_graph_check_validity()
ff_avfilter_graph_config_links()
ff_avfilter_graph_config_formats()
and move their declaration to internal.h. These functions are never
used in application code, so it is better to consider them internal
functions, this can be changed later if necessary. Simplify API.
Originally committed as revision 25737 to svn://svn.ffmpeg.org/ffmpeg/trunk
eval API.
More grep-friendly and more consistent with the rest of the FFmpeg
API.
Originally committed as revision 25708 to svn://svn.ffmpeg.org/ffmpeg/trunk
The new name is shorter and more consistent with the FFmpeg API, and
sounds less evil.
Originally committed as revision 25707 to svn://svn.ffmpeg.org/ffmpeg/trunk
avfilter_graph_parse() declaration to libavfilter/avfiltergraph.h.
Simplify, and less confusing for the user.
Originally committed as revision 25705 to svn://svn.ffmpeg.org/ffmpeg/trunk
The new name is shorter and more consistent with the rest of the API.
This change breaks libavfilter API/ABI.
Originally committed as revision 25674 to svn://svn.ffmpeg.org/ffmpeg/trunk
of a filter for setting the output timebase, if there is such a link,
rather than always use AV_TIME_BASE_Q.
This fixes configuration for all the filters which do not use the
default config_props for the output link, and do not set explicitely
the timebase.
Originally committed as revision 25456 to svn://svn.ffmpeg.org/ffmpeg/trunk
This is required for allowing a filter to use a time base different
from AV_TIME_BASE_Q, as it was previously assumed.
Originally committed as revision 25441 to svn://svn.ffmpeg.org/ffmpeg/trunk
yadif.c:226: error: can't find a register in class 'GENERAL_REGS' while reloading 'asm'
yadif.c:220: error: 'asm' operand has impossible constraints
Patch by Alexander Strange <astrange ithinksw com>.
Originally committed as revision 25251 to svn://svn.ffmpeg.org/ffmpeg/trunk
See thread:
Subject: [FFmpeg-devel] [PATCH] Port MPlayer blackframe filter.
Date: Sun, 26 Sep 2010 01:10:40 +0200
Originally committed as revision 25214 to svn://svn.ffmpeg.org/ffmpeg/trunk
r25185 | stefano | 2010-09-25 03:18:43 +0200 (Sat, 25 Sep 2010) | 1 line
Make the crop filters accept parametric expressions.
Originally committed as revision 25193 to svn://svn.ffmpeg.org/ffmpeg/trunk
Slightly more intuitive and required by a pending changes for making
the filter parametric.
Originally committed as revision 25184 to svn://svn.ffmpeg.org/ffmpeg/trunk
See thread:
Subject: [FFmpeg-devel] [POC] frei0r wrapper
Date: Tue, 24 Aug 2010 21:37:32 +0200
Originally committed as revision 25165 to svn://svn.ffmpeg.org/ffmpeg/trunk
link rather than avfilter_default_get_video_buffer().
This is required as the buffer requested may be greater than the
buffer allocated locally by avfilter_default_get_video_buffer(), for
example if in filterchain there is a pad filter (like in "fifo,pad").
In that case the pad filter will try to write beyond the data of the
allocated buffer, resulting in a crash.
Originally committed as revision 24895 to svn://svn.ffmpeg.org/ffmpeg/trunk
The plural form is preferred as it is more consistent with the other functions:
av_fill_image_linesizes()
av_fill_image_pointers()
and looks semantically more correct as it fills an array of elements.
Originally committed as revision 24851 to svn://svn.ffmpeg.org/ffmpeg/trunk
To display the other planes is usually not useful and add noise to the
output.
Originally committed as revision 24843 to svn://svn.ffmpeg.org/ffmpeg/trunk
This is required to make AVFilterBufferRef able to contain also audio
data, required by audio filtering integration.
Patch by S.N. Hemanth Meenakshisundaram smeen?ks@ucsd.ed?.
Originally committed as revision 24773 to svn://svn.ffmpeg.org/ffmpeg/trunk
AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name);
to:
int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
This way it is possible to propagate an error code telling the reason
of the failure.
Originally committed as revision 24765 to svn://svn.ffmpeg.org/ffmpeg/trunk
Define a new struct AVFilterBufferRefVideoProps and add a type field
to AVFilterBufferRef.
Video specific properties in AVFilterBufferRefVideoProps are now
referred to by *video pointer in AVFilterBufferRef.
Patch by S.N. Hemanth Meenakshisundaram smeenaks->ucsd.edu.
Originally committed as revision 24763 to svn://svn.ffmpeg.org/ffmpeg/trunk
AVFilterLink.srcpic -> AVFilterLink.src_buf
AVFilterLink.cur_pic -> AVFilterLink.cur_buf
AVFilterLink.outpic -> AVFilterLink.out_buf
The new names are more generic and more consistent, since the struct
they contain, which was named AVFilterPicRef, has been renamed to
AVFilterBufferRef.
Patch by S.N. Hemanth Meenakshisundaram %smeenaks%ucsd%edu%.
Originally committed as revision 24732 to svn://svn.ffmpeg.org/ffmpeg/trunk
avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
They have been renamed to allow sharing with audio.
Patch by S.N. Hemanth Meenakshisundaram $smeenaks$ucsd$edu$.
Originally committed as revision 24731 to svn://svn.ffmpeg.org/ffmpeg/trunk
The struct is going to be used for storing audio buffer references as
well, and the new name is more generic.
Patch by S.N. Hemanth Meenakshisundaram @smeenaks@ucsd@edu@.
Originally committed as revision 24730 to svn://svn.ffmpeg.org/ffmpeg/trunk
AVFilterBuffereRef in avfilter_default_get_video_buffer().
The error was being caused by the previous patch which resized
AVFilterBuffer's data and linesize arrays to 8.
Patch by S.N. Hemanth Meenakshisundaram" &smeenaks&ucsd&edu&.
Originally committed as revision 24727 to svn://svn.ffmpeg.org/ffmpeg/trunk
This is required for making AVFilterBuffer useful for storing audio
data.
Patch by S.N. Hemanth Meenakshisundaram revert <ude.dscu@skaneems>.
Originally committed as revision 24592 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcore/imgutils.c rather than ff_fill_linesize() and
ff_fill_pointer().
Also remove a dependency on libavcodec.
Originally committed as revision 24586 to svn://svn.ffmpeg.org/ffmpeg/trunk
Although with several limitations, lavfi can be compiled and used
without the scale filter.
Originally committed as revision 24570 to svn://svn.ffmpeg.org/ffmpeg/trunk
in favor of the newly added corresponding functions
av_parse_video_size() and av_parse_video_rate() defined in
libavcore/parseutils.h.
This change also adds a linking-time dependency of libavcodec and of
libavfilter on libavcore.
Originally committed as revision 24518 to svn://svn.ffmpeg.org/ffmpeg/trunk
This is needed to make the libavfilter framework work with audio
filters.
In particular add a type field to AVFilterLink, change the field types:
enum PixelFormat format -> int format in AVFilterBuffer
enum PixelFormat *formats -> int *formats in AVFilterFormats
enum PixelFormat *format -> int format in AVFilterLink
and change the function signatures:
AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
AVFilterFormats *avfilter_make_format_list(const int *fmts);
int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
int avfilter_add_format(AVFilterFormats **avff, int fmt);
AVFilterFormats *avfilter_all_colorspaces(void); ->
AVFilterFormats *avfilter_all_formats(enum AVMediaType type);
This change breaks libavfilter API/ABI.
Patch by S.N. Hemanth Meenakshisundaram |smeenaks|ucsd|edu|.
Originally committed as revision 24424 to svn://svn.ffmpeg.org/ffmpeg/trunk
Make the buffer source accept a string for specifying the input pixel
format.
Originally committed as revision 24387 to svn://svn.ffmpeg.org/ffmpeg/trunk
definition.
This way it is easier to reference them in other structures, for
example in the pending AVFilterSamplesRef struct.
Patch by S.N. Hemanth Meenakshisundaram smeenaks AT ucsd DOT edu.
Originally committed as revision 24294 to svn://svn.ffmpeg.org/ffmpeg/trunk
These fields are never used, and they do not seem to belong to
AVFilterBuffer anymore, now that it is now a media-independent
structure and these fields are video-related.
Patch by S.N. Hemanth Meenakshisundaram smeenaks ! ucsd ! edu.
Originally committed as revision 24291 to svn://svn.ffmpeg.org/ffmpeg/trunk
The struct is going to be used for audio data as well, so the new name
is less misleading.
Patch by S.N. Hemanth Meenakshisundaram smeenaks AT ucsd DOT edu.
Originally committed as revision 24284 to svn://svn.ffmpeg.org/ffmpeg/trunk
The old names were not av_ prefixed, and they were causing linking
failure on many platforms. The new names are also more descriptive.
Patch by Stefano Sabatini.
Originally committed as revision 24101 to svn://svn.ffmpeg.org/ffmpeg/trunk
of the file, and put under #if CONFIG_PAD_FILTER the code specific to
the pad filter.
Simplify the inclusion of the color source.
Originally committed as revision 24067 to svn://svn.ffmpeg.org/ffmpeg/trunk
byte for the alpha component, as it is never used, clarify the code
and prevent bad usage of it.
Originally committed as revision 23834 to svn://svn.ffmpeg.org/ffmpeg/trunk
warning #188: enumerated type mixed with another type
enum PixelFormat pix_fmts[] = { c->pix_fmt, PIX_FMT_NONE };
^
Originally committed as revision 23640 to svn://svn.ffmpeg.org/ffmpeg/trunk
Keep an old ff_ named function for binary compatibility until the
next major bump.
Originally committed as revision 23254 to svn://svn.ffmpeg.org/ffmpeg/trunk
swscale context.
This makes eventual warnings issued in case of swscale context
creation failure to be shown after the conversion information rather
than before, which is slightly less confusing.
Originally committed as revision 23056 to svn://svn.ffmpeg.org/ffmpeg/trunk
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
In case of reallocation failure the pointer to the original filter
array was lost. The correct behavior seems to just keep the old array
and count.
Originally committed as revision 22905 to svn://svn.ffmpeg.org/ffmpeg/trunk
Avoid creating and releasing useless extra picture references in the
start_frame and end_frame callbacks.
Originally committed as revision 22596 to svn://svn.ffmpeg.org/ffmpeg/trunk
byte position information, as stored in the pkt.pos, through the
filterchain.
Note that the pos field is added *non* at the end of the
AVFilterPicRef struct, thus breaking ABI compatibility, which is
allowed as the API is still considered non-stable.
Originally committed as revision 22506 to svn://svn.ffmpeg.org/ffmpeg/trunk
choosen between 8 and 32 when the supplied parameter is the string
"random".
This is useful for testing the slice support, but it is not supposed
to be used for other purposes and this interface may change in the
future, thus it is not documented.
The randomization algorithm adopted is the standard Numerical Recipes
LCG.
Originally committed as revision 22505 to svn://svn.ffmpeg.org/ffmpeg/trunk
This function is not referenced outside this file and has no
prototype. Feel free to flame if this is wrong.
Originally committed as revision 22314 to svn://svn.ffmpeg.org/ffmpeg/trunk
Also link avfiltergraph.o and graphparser.o against libavfilter, as it
uses them.
Originally committed as revision 22063 to svn://svn.ffmpeg.org/ffmpeg/trunk
avcodec_get_chroma_sub_sample(), directly access
av_pix_fmt_descriptors instead.
Remove some of the dependancies of lavfi on lavc.
Originally committed as revision 21575 to svn://svn.ffmpeg.org/ffmpeg/trunk
size of the output link of the destination filter, rather than of the
size of the input link.
In particular this fixes a crash in the rotate filter.
Originally committed as revision 21238 to svn://svn.ffmpeg.org/ffmpeg/trunk
auto-inserted scale filter, rather than the filter name, as this
provides more information.
Originally committed as revision 21123 to svn://svn.ffmpeg.org/ffmpeg/trunk
AVFilter.query_formats doxy.
The doxy expresses what a function does, not what it should do.
Originally committed as revision 21075 to svn://svn.ffmpeg.org/ffmpeg/trunk
*avff, so that an AVFilterFormats struct is created and returned by
the function if *avff is NULL.
Make the function use more convenient.
Originally committed as revision 21035 to svn://svn.ffmpeg.org/ffmpeg/trunk
formats only the non-HW-accelerated formats, for which there is no
sense in filtering.
Originally committed as revision 21009 to svn://svn.ffmpeg.org/ffmpeg/trunk
Add ';' and '\n' to the terminating characters for the name of a
filter, and ';' to the terminating characters for its args.
Originally committed as revision 20800 to svn://svn.ffmpeg.org/ffmpeg/trunk
of the type 0xRRGBBAA parsed by av_parse_color(), using a simple int
was resulting in unexpected results as the most significant bit was
used for the sign.
Originally committed as revision 20778 to svn://svn.ffmpeg.org/ffmpeg/trunk
Avoid the need to implement slice direction detection code, thus
reducing code duplication.
See the thread:
"[FFmpeg-devel] [PATCH] Add a slice_dir parameter to avfilter_start_frame()".
Originally committed as revision 20734 to svn://svn.ffmpeg.org/ffmpeg/trunk
draw_slice().
The chroma values to use are supposed to be those of the input format,
not that of the output format, the latter case was causing crashes and
chroma issues.
Originally committed as revision 20660 to svn://svn.ffmpeg.org/ffmpeg/trunk
The assumption depends on the corresponding assumption done by
sws_scale() and by the scale filter.
Originally committed as revision 20655 to svn://svn.ffmpeg.org/ffmpeg/trunk
Create a new static array containing pointers to the AVFilter
definitions, so that the non-constant next filter in the AVFilter
struct is not anymore required and the AVFilter definitions may be
stored in shareable memory.
Also change the signature for avfilter_register(), make it return an
int since it may fail if there is not enough space in the static array
for the registered filters.
Originally committed as revision 20605 to svn://svn.ffmpeg.org/ffmpeg/trunk
not correctly supported.
See the thread:
"[FFmpeg-devel] [PATCH] Remove not truly supported formats support from the crop filter".
Originally committed as revision 20576 to svn://svn.ffmpeg.org/ffmpeg/trunk
avfilter_default_get_video_buffer() if the get_video_buffer() callback
is not defined in a filter.
Libavfilter filters author have to explicitely define the
get_video_buffer() callback if they want the buffer to be requested to
the filter following in the filterchain.
See the thread:
"[FFmpeg-devel] [PATCH] Make avfilter_get_video_buffer() use
default_get_video_buffer if callback not defined".
Originally committed as revision 20444 to svn://svn.ffmpeg.org/ffmpeg/trunk
"video format and noformat filters" to
"format and noformat video filters",
as suggested by Diego.
Originally committed as revision 20442 to svn://svn.ffmpeg.org/ffmpeg/trunk
That was never required since avfilter_get_video_buffer() already
calls itself on the next link if get_video_buffer is not defined.
Originally committed as revision 20419 to svn://svn.ffmpeg.org/ffmpeg/trunk
for registering and finding filters, rather than use the struct
AVFilterList, which is removed.
Simplify the filter registration management code.
Originally committed as revision 20387 to svn://svn.ffmpeg.org/ffmpeg/trunk
Simplify the registration and iteration of all the registered filters,
consistent with what is done with formats / codecs.
Originally committed as revision 20385 to svn://svn.ffmpeg.org/ffmpeg/trunk
argument of avfilter_make_format_list(), as the argument represents a
list of elements.
Originally committed as revision 20341 to svn://svn.ffmpeg.org/ffmpeg/trunk
avfilter_make_format_list().
See the thread:
"[PATCH] Implement avfilter_make_format_list2(enum PixelFormat pix_fmt, ...)".
Originally committed as revision 20299 to svn://svn.ffmpeg.org/ffmpeg/trunk
min = FFMIN(min, avfilter_poll_frame(link->src->inputs[i]))
which, since FFMIN is a macro, was calling itself
twice for every input, causing an exponential cost in time.
Originally committed as revision 20295 to svn://svn.ffmpeg.org/ffmpeg/trunk
When called on a link with a filter whose destination pad has not a
get_video_buffer callback defined, it will call
avfilter_get_video_buffer() on the first output link of the
destination filer, rather than use avfilter_default_get_buffer(), so
the video buffer can be allocated forward in the filterchain.
Also add the w and h parameters to avfilter_get_video_buffer(), as the
minimum width and height requested by each filter in the filterchain
may change, this allows for example a memcpy-less pad filter.
This change breaks API / ABI backward compatibility.
See the thread:
"[PATCH] Implement recusive avfilter_get_video_buffer()".
Originally committed as revision 20272 to svn://svn.ffmpeg.org/ffmpeg/trunk
result in a randomly choosen random color, as it is with the
"bikeshed" color.
Originally committed as revision 18828 to svn://svn.ffmpeg.org/ffmpeg/trunk
corresponding count is zero, rather than allocate a 16 bytes sized
block for them. Improve safety.
Originally committed as revision 16565 to svn://svn.ffmpeg.org/ffmpeg/trunk
avfilter_draw_slice() when the draw_slice callback is not defined in
the input pad.
Originally committed as revision 16554 to svn://svn.ffmpeg.org/ffmpeg/trunk
