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* avfilter: convert to new channel layout APIJames Almer2022-03-151-1/+1
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* avfilter: Replace query_formats callback with union of list and callbackAndreas Rheinhardt2021-10-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If one looks at the many query_formats callbacks in existence, one will immediately recognize that there is one type of default callback for video and a slightly different default callback for audio: It is "return ff_set_common_formats_from_list(ctx, pix_fmts);" for video with a filter-specific pix_fmts list. For audio, it is the same with a filter-specific sample_fmts list together with ff_set_common_all_samplerates() and ff_set_common_all_channel_counts(). This commit allows to remove the boilerplate query_formats callbacks by replacing said callback with a union consisting the old callback and pointers for pixel and sample format arrays. For the not uncommon case in which these lists only contain a single entry (besides the sentinel) enum AVPixelFormat and enum AVSampleFormat fields are also added to the union to store them directly in the AVFilter, thereby avoiding a relocation. The state of said union will be contained in a new, dedicated AVFilter field (the nb_inputs and nb_outputs fields have been shrunk to uint8_t in order to create a hole for this new field; this is no problem, as the maximum of all the nb_inputs is four; for nb_outputs it is only two). The state's default value coincides with the earlier default of query_formats being unset, namely that the filter accepts all formats (and also sample rates and channel counts/layouts for audio) provided that these properties agree coincide for all inputs and outputs. By using different union members for audio and video filters the type-unsafety of using the same functions for audio and video lists will furthermore be more confined to formats.c than before. When the new fields are used, they will also avoid allocations: Currently something nearly equivalent to ff_default_query_formats() is called after every successful call to a query_formats callback; yet in the common case that the newly allocated AVFilterFormats are not used at all (namely if there are no free links) these newly allocated AVFilterFormats are freed again without ever being used. Filters no longer using the callback will not exhibit this any more. Reviewed-by: Paul B Mahol <onemda@gmail.com> Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* lavfi/sine: switch to activateNicolas George2021-08-211-5/+11
| | | | | | Allow to set the EOF timestamp. Signed-off-by: Nicolas George <george@nsup.com>
* avfilter/avfilter: Add numbers of (in|out)pads directly to AVFilterAndreas Rheinhardt2021-08-201-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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/formats: Factor common function combinations outAndreas Rheinhardt2021-08-131-16/+3
| | | | | | | | | | | Several combinations of functions happen quite often in query_format functions; e.g. ff_set_common_formats(ctx, ff_make_format_list(sample_fmts)) is very common. This commit therefore adds functions that are equivalent to commonly used function combinations in order to reduce code duplication. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avfilter: Constify all AVFiltersAndreas Rheinhardt2021-04-271-1/+1
| | | | | | | 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/asrc_sine: Fix invalid left shift of negative numberAndreas Rheinhardt2021-03-281-1/+1
| | | | | | | | | | by using a multiplication instead. The multiplication can never overflow an int because the sin-factor is only an int16_t. Affected the FATE-tests filter-concat and filter-concat-vfr. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avfilter/formats: Schedule avfilter_make_format64_list() for removalAndreas Rheinhardt2020-08-121-1/+1
| | | | | | | | | | | | Despite its name, this function is not part of the public API, as formats.h, the header containing its declaration, is a private header. The formats API was once public API, but that changed long ago (b74a1da49db5ebed51aceae6cacc2329288a92c1, the commit scheduling it to become private, is from 2012). That avfilter_make_format64_list() was forgotten is probably a result of the confusion resulting from the libav-ffmpeg split. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avfilter: don't anonymously typedef structsPaul B Mahol2017-05-131-1/+1
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* lavfi: split frame_count between input and output.Nicolas George2016-11-131-1/+1
| | | | | | | | | | | | AVFilterLink.frame_count is supposed to count the number of frames that were passed on the link, but with min_samples, that number is not always the same for the source and destination filters. With the addition of a FIFO on the link, the difference will become more significant. Split the variable in two: frame_count_in counts the number of frames that entered the link, frame_count_out counts the number of frames that were sent to the destination filter.
* avfilter/asrc_sine: fix options typosKyle Swanson2015-10-291-2/+2
| | | | | | Signed-off-by: Kyle Swanson <k@ylo.ph> Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avfilter: avoid zero arguments to variadic macroGanesh Ajjanagadde2015-10-241-9/+9
| | | | | | | | | ISO C requires at least one argument in the place of the ellipsis in a variadic macro. In particular, under -pedantic, this triggers the warning -Wgnu-zero-variadic-macro-arguments on clang 3.7. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
* avfilter/sine: support expression in the number of output samplesClément Bœsch2015-09-061-3/+45
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* avfilter: handle error in query_formats() in bunch of filtersPaul B Mahol2015-04-081-4/+21
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* Merge remote-tracking branch 'qatar/master'Michael Niedermayer2013-10-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qatar/master: lavfi: do not export the filters from shared objects Conflicts: libavfilter/af_amix.c libavfilter/af_anull.c libavfilter/asrc_anullsrc.c libavfilter/f_select.c libavfilter/f_settb.c libavfilter/split.c libavfilter/src_movie.c libavfilter/vf_aspect.c libavfilter/vf_blackframe.c libavfilter/vf_colorbalance.c libavfilter/vf_copy.c libavfilter/vf_crop.c libavfilter/vf_cropdetect.c libavfilter/vf_drawbox.c libavfilter/vf_format.c libavfilter/vf_framestep.c libavfilter/vf_frei0r.c libavfilter/vf_hflip.c libavfilter/vf_libopencv.c libavfilter/vf_lut.c libavfilter/vf_null.c libavfilter/vf_overlay.c libavfilter/vf_scale.c libavfilter/vf_transpose.c libavfilter/vf_unsharp.c libavfilter/vf_vflip.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
* avfilter: various cosmeticsPaul B Mahol2013-09-121-1/+1
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* lavfi: remove now unused args parameter from AVFilter.init and init_opaqueMichael Niedermayer2013-04-121-1/+1
| | | | | | | | | This is mostly automated global search and replace The deprecated aconvert filter is disabled, if it still has users it should be updated Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* lavfi/sine: switch to an AVOptions-based system.Clément Bœsch2013-04-111-3/+0
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* lavfi/sine: use standard options parsing.Clément Bœsch2013-03-241-7/+3
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* asrc_sine: avoid use of INFINITY as it might be a non constantMichael Niedermayer2013-03-211-4/+6
| | | | | | This should fix compilation on openbsd Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* lavfi: add sine audio source.Nicolas George2013-03-201-0/+228