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* avfilter/formats: Make ff_formats_pixdesc_filter return AVFilterFormats*Andreas Rheinhardt2021-09-26
| | | | | | | | | | | | | | | | Up until now, it has returned the AVFilterFormats list via an AVFilterFormats** parameter; the actual return value was an int that was always AVERROR(ENOMEM) on error. The AVFilterFormats** argument was a pure output parameter which was only documented by naming the parameter rfmts. Yet nevertheless all callers initialized the underlying AVFilterFormats* to NULL. This commit changes this to return a pointer to AVFilterFormats directly. This is more in line with the API in general, as it allows to avoid checks for intermediate values. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avfilter/vf_stack: Deduplicate AVClassesAndreas Rheinhardt2021-09-19
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avfilter/vf_stack: Free inpads' names genericallyAndreas Rheinhardt2021-08-22
| | | | | Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avfilter/avfilter: Add numbers of (in|out)pads directly to AVFilterAndreas Rheinhardt2021-08-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Up until now, an AVFilter's lists of input and output AVFilterPads were terminated by a sentinel and the only way to get the length of these lists was by using avfilter_pad_count(). This has two drawbacks: first, sizeof(AVFilterPad) is not negligible (i.e. 64B on 64bit systems); second, getting the size involves a function call instead of just reading the data. This commit therefore changes this. The sentinels are removed and new private fields nb_inputs and nb_outputs are added to AVFilter that contain the number of elements of the respective AVFilterPad array. Given that AVFilter.(in|out)puts are the only arrays of zero-terminated AVFilterPads an API user has access to (AVFilterContext.(in|out)put_pads are not zero-terminated and they already have a size field) the argument to avfilter_pad_count() is always one of these lists, so it just has to find the filter the list belongs to and read said number. This is slower than before, but a replacement function that just reads the internal numbers that users are expected to switch to will be added soon; and furthermore, avfilter_pad_count() is probably never called in hot loops anyway. This saves about 49KiB from the binary; notice that these sentinels are not in .bss despite being zeroed: they are in .data.rel.ro due to the non-sentinels. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avfilter/avfilter: Remove unused feature to add pads in the middleAndreas Rheinhardt2021-08-17
| | | | | Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avfilter/internal: Factor out executing a filter's execute_funcAndreas Rheinhardt2021-08-15
| | | | | | | The current way of doing it involves writing the ctx parameter twice. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avfilter: Constify all AVFiltersAndreas Rheinhardt2021-04-27
| | | | | | | This is possible now that the next-API is gone. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> Signed-off-by: James Almer <jamrial@gmail.com>
* avfilter/vf_stack: use ff_formats_pixdesc_filter()Paul B Mahol2021-01-16
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* avfilter/vf_stack: add fill option for xstackPaul B Mahol2020-01-22
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* avfilter/vf_stack: set framerate to VFR when inputs frame rates differsPaul B Mahol2019-12-17
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* avfilter/vf_stack: add slice threadingPaul B Mahol2019-09-25
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* avfilter/vf_stack: simplify main processing pathPaul B Mahol2019-09-25
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* avfilter/vf_stack: Don't modify const stringsAndreas Rheinhardt2019-05-14
| | | | | | | | | | b3b7ba62 introduced undefined behaviour: A (non-modifiable) string literal has been assigned to a modifiable string; said string was indeed modified later via av_strtok. This of course caused compiler warnings because of the discarded qualifier; these are in particular fixed by this commit. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avfilter/vf_xstack: set better error msg forGyan Doshi2019-05-07
| | | | missing layout
* avfilter/vf_stack: use time_base from framesyncPaul B Mahol2019-04-26
| | | | Fixes non-monotonous timestamps.
* avfilter: add xstack filterPaul B Mahol2018-10-26
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* avfilter/vf_stack: always copy SAR from first inputPaul B Mahol2017-12-02
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* lavfi: rename framesync2 to framesync.Nicolas George2017-09-12
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* lavfi/vf_stack: move to "activate" design.Nicolas George2017-07-30
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* avfilter/vf_stack: free input pads name on uninitPaul B Mahol2016-02-04
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* avutil: Rename FF_CEIL_COMPAT to AV_CEIL_COMPATDerek Buitenhuis2016-01-27
| | | | | | | | | | Libav, for some reason, merged this as a public API function. This will aid in future merges. A define is left for backwards compat, just in case some person used it, since it is in a public header. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* avfilter/vf_stack: make it possible to stop with shortest streamPaul B Mahol2015-11-26
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* avfilter/all: propagate errors of functions from avfilter/formatsGanesh Ajjanagadde2015-10-14
| | | | | | | | | | | | | | | | | | Many of the functions from avfilter/formats can return errors, usually AVERROR(ENOMEM). This propagates the return values. All of these were found by using av_warn_unused_result, demonstrating its utility. Tested with FATE. I am least sure of the changes to avfilter/filtergraph, since I don't know what/how reduce_format is intended to behave and how it should react to errors. Fixes: CID 1325680, 1325679, 1325678. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Previous version Reviewed-by: Nicolas George <george@nsup.org> Previous version Reviewed-by: Clément Bœsch <u@pkh.me> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
* avfilter/vf_stack: Fix memleak of out frameMichael Niedermayer2015-09-05
| | | | | | Fixes CID1322347 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avfilter: add hstack & vstack filterPaul B Mahol2015-08-26
Signed-off-by: Paul B Mahol <onemda@gmail.com>