lavfi/internal: move functions used by filters to filters.h

internal.h currently mixes interfaces intended to be used by filters
with those that should be limited to generic filter- or graph-level
code.

libavfilter/af_acontrast.c

@@ -23,6 +23,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 typedef struct AudioContrastContext {
     const AVClass *class;

libavfilter/af_acopy.c

@@ -18,6 +18,7 @@
 
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 static int filter_frame(AVFilterLink *inlink, AVFrame *in)

libavfilter/af_acrusher.c

@@ -21,6 +21,7 @@
 #include "libavutil/mem.h"
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "audio.h"
 

libavfilter/af_adecorrelate.c

@@ -27,6 +27,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 #define MAX_STAGES 16
 #define FILTER_FC  1100.0

libavfilter/af_adenorm.c

@@ -21,6 +21,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 enum FilterType {

libavfilter/af_aderivative.c

@@ -19,6 +19,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct ADerivativeContext {

libavfilter/af_adynamicequalizer.c

@@ -23,6 +23,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "formats.h"
 
 enum DetectionModes {

libavfilter/af_adynamicsmooth.c

@@ -20,6 +20,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 typedef struct AudioDynamicSmoothContext {
     const AVClass *class;

libavfilter/af_aemphasis.c

@@ -20,6 +20,7 @@
 
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "audio.h"
 

libavfilter/af_aexciter.c

@@ -21,6 +21,7 @@
 #include "libavutil/mem.h"
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "audio.h"
 

libavfilter/af_aformat.c

@@ -30,6 +30,7 @@
 
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 

libavfilter/af_afreqshift.c

@@ -24,6 +24,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 #define MAX_NB_COEFFS 16
 

libavfilter/af_alimiter.c

@@ -32,6 +32,7 @@
 
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct MetaItem {

libavfilter/af_anequalizer.c

@@ -26,6 +26,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/parseutils.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 #include "audio.h"

libavfilter/af_anull.c

@@ -24,6 +24,7 @@
 
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "libavutil/internal.h"
 

libavfilter/af_aphaser.c

@@ -28,6 +28,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "generate_wave_table.h"
 

libavfilter/af_apulsator.c

@@ -22,6 +22,7 @@
 #include "libavutil/channel_layout.h"
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 #include "audio.h"

libavfilter/af_asetrate.c

@@ -20,6 +20,7 @@
 
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 

libavfilter/af_asoftclip.c

@@ -23,6 +23,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 #define MAX_OVERSAMPLE 64
 

libavfilter/af_asr.c

@@ -26,6 +26,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 

libavfilter/af_astats.c

@@ -26,6 +26,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 #define HISTOGRAM_SIZE                  8192

libavfilter/af_asubboost.c

@@ -22,6 +22,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 typedef struct ASubBoostContext {
     const AVClass *class;

libavfilter/af_asupercut.c

@@ -24,6 +24,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 typedef struct BiquadCoeffs {
     double a1, a2;

libavfilter/af_atempo.c

@@ -47,6 +47,7 @@
 #include "libavutil/tx.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "internal.h"
 
 /**

libavfilter/af_atilt.c

@@ -21,6 +21,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 #define MAX_ORDER 30
 

libavfilter/af_bs2b.c

@@ -29,6 +29,7 @@
 
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 

libavfilter/af_channelmap.c

@@ -35,6 +35,7 @@
 
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 

libavfilter/af_chorus.c

@@ -34,6 +34,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "generate_wave_table.h"
 

libavfilter/af_compand.c

@@ -35,6 +35,7 @@
 #include "libavutil/samplefmt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct ChanParam {

libavfilter/af_compensationdelay.c

@@ -23,6 +23,7 @@
 #include "libavutil/samplefmt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct CompensationDelayContext {

libavfilter/af_crystalizer.c

@@ -22,6 +22,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 typedef struct CrystalizerContext {
     const AVClass *class;

libavfilter/af_dcshift.c

@@ -23,6 +23,7 @@
 #include "libavutil/samplefmt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct DCShiftContext {

libavfilter/af_deesser.c

@@ -25,6 +25,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 
 typedef struct DeesserChannel {
     double s1, s2, s3;

libavfilter/af_drmeter.c

@@ -25,6 +25,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 #define BINS 32768

libavfilter/af_earwax.c

@@ -32,6 +32,7 @@
 #include "libavutil/channel_layout.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "formats.h"
 
 #define NUMTAPS 32

libavfilter/af_extrastereo.c

@@ -22,6 +22,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "formats.h"
 
 typedef struct ExtraStereoContext {

libavfilter/af_flanger.c

@@ -23,6 +23,7 @@
 #include "libavutil/samplefmt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "internal.h"
 #include "generate_wave_table.h"
 

libavfilter/af_haas.c

@@ -23,6 +23,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "formats.h"
 
 #define MAX_HAAS_DELAY 40

libavfilter/af_hdcd.c

@@ -47,6 +47,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/avassert.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 #include "audio.h"

libavfilter/af_ladspa.c

@@ -34,6 +34,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 

libavfilter/af_mcompand.c

@@ -35,6 +35,7 @@
 #include "libavutil/samplefmt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct CompandSegment {

libavfilter/af_pan.c

@@ -35,6 +35,7 @@
 #include "libswresample/swresample.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 

libavfilter/af_silencedetect.c

@@ -30,6 +30,7 @@
 #include "libavutil/timestamp.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct SilenceDetectContext {

libavfilter/af_stereotools.c

@@ -23,6 +23,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "formats.h"
 
 typedef struct StereoToolsContext {

libavfilter/af_stereowiden.c

@@ -24,6 +24,7 @@
 #include "libavutil/opt.h"
 #include "avfilter.h"
 #include "audio.h"
+#include "filters.h"
 #include "formats.h"
 
 typedef struct StereoWidenContext {

libavfilter/af_tremolo.c

@@ -21,6 +21,7 @@
 #include "libavutil/mem.h"
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "audio.h"
 

libavfilter/af_vibrato.c

@@ -21,6 +21,7 @@
 #include "libavutil/mem.h"
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "audio.h"
 #include "generate_wave_table.h"

libavfilter/af_volumedetect.c

@@ -22,6 +22,7 @@
 #include "libavutil/avassert.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct VolDetectContext {

libavfilter/asink_anullsink.c

@@ -20,6 +20,7 @@
 
 #include "libavutil/internal.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 static int null_filter_frame(AVFilterLink *link, AVFrame *frame)

libavfilter/audio.c

@@ -27,6 +27,7 @@
 #include "audio.h"
 #include "avfilter.h"
 #include "avfilter_internal.h"
+#include "filters.h"
 #include "framepool.h"
 #include "internal.h"
 

libavfilter/audio.h

@@ -23,7 +23,7 @@
 #define AVFILTER_AUDIO_H
 
 #include "avfilter.h"
-#include "internal.h"
+#include "filters.h"
 
 /**
  * An AVFilterPad array whose only entry has name "default"

libavfilter/avfiltergraph.c

@@ -36,6 +36,7 @@
 #include "avfilter.h"
 #include "avfilter_internal.h"
 #include "buffersink.h"
+#include "filters.h"
 #include "formats.h"
 #include "framequeue.h"
 #include "internal.h"

libavfilter/dnn/dnn_interface.c

@@ -27,6 +27,8 @@
 #include "libavutil/avassert.h"
 #include "libavutil/mem.h"
 #include "libavutil/opt.h"
+
+#include "libavfilter/filters.h"
 #include "libavfilter/internal.h"
 
 extern const DNNModule ff_dnn_backend_openvino;

libavfilter/f_bench.c

@@ -22,6 +22,7 @@
 #include "libavutil/time.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/f_realtime.c

@@ -24,6 +24,7 @@
 #include "libavutil/time.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 #include <float.h>

libavfilter/f_reverse.c

@@ -22,6 +22,7 @@
 
 #include "libavutil/mem.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 #define DEFAULT_LENGTH 300

libavfilter/f_sidedata.c

@@ -29,6 +29,7 @@
 #include "libavutil/opt.h"
 #include "audio.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/filters.h

@@ -33,6 +33,92 @@
  */
 #define FFERROR_NOT_READY FFERRTAG('N','R','D','Y')
 
+/**
+ * A filter pad used for either input or output.
+ */
+struct AVFilterPad {
+    /**
+     * Pad name. The name is unique among inputs and among outputs, but an
+     * input may have the same name as an output. This may be NULL if this
+     * pad has no need to ever be referenced by name.
+     */
+    const char *name;
+
+    /**
+     * AVFilterPad type.
+     */
+    enum AVMediaType type;
+
+    /**
+     * The filter expects writable frames from its input link,
+     * duplicating data buffers if needed.
+     *
+     * input pads only.
+     */
+#define AVFILTERPAD_FLAG_NEEDS_WRITABLE                  (1 << 0)
+
+    /**
+     * The pad's name is allocated and should be freed generically.
+     */
+#define AVFILTERPAD_FLAG_FREE_NAME                       (1 << 1)
+
+    /**
+     * A combination of AVFILTERPAD_FLAG_* flags.
+     */
+    int flags;
+
+    /**
+     * Callback functions to get a video/audio buffers. If NULL,
+     * the filter system will use ff_default_get_video_buffer() for video
+     * and ff_default_get_audio_buffer() for audio.
+     *
+     * The state of the union is determined by type.
+     *
+     * Input pads only.
+     */
+    union {
+        AVFrame *(*video)(AVFilterLink *link, int w, int h);
+        AVFrame *(*audio)(AVFilterLink *link, int nb_samples);
+    } get_buffer;
+
+    /**
+     * Filtering callback. This is where a filter receives a frame with
+     * audio/video data and should do its processing.
+     *
+     * Input pads only.
+     *
+     * @return >= 0 on success, a negative AVERROR on error. This function
+     * must ensure that frame is properly unreferenced on error if it
+     * hasn't been passed on to another filter.
+     */
+    int (*filter_frame)(AVFilterLink *link, AVFrame *frame);
+
+    /**
+     * Frame request callback. A call to this should result in some progress
+     * towards producing output over the given link. This should return zero
+     * on success, and another value on error.
+     *
+     * Output pads only.
+     */
+    int (*request_frame)(AVFilterLink *link);
+
+    /**
+     * Link configuration callback.
+     *
+     * For output pads, this should set the link properties such as
+     * width/height. This should NOT set the format property - that is
+     * negotiated between filters by the filter system using the
+     * query_formats() callback before this function is called.
+     *
+     * For input pads, this should check the properties of the link, and update
+     * the filter's internal state as necessary.
+     *
+     * For both input and output filters, this should return zero on success,
+     * and another value on error.
+     */
+    int (*config_props)(AVFilterLink *link);
+};
+
 /**
  * Link properties exposed to filter code, but not external callers.
  *
@@ -114,6 +200,98 @@ static inline FilterLink* ff_filter_link(AVFilterLink *link)
     return (FilterLink*)link;
 }
 
+typedef struct FFFilterContext {
+    /**
+     * The public AVFilterContext. See avfilter.h for it.
+     */
+    AVFilterContext p;
+
+    avfilter_execute_func *execute;
+
+    // 1 when avfilter_init_*() was successfully called on this filter
+    // 0 otherwise
+    int initialized;
+} FFFilterContext;
+
+static inline FFFilterContext *fffilterctx(AVFilterContext *ctx)
+{
+    return (FFFilterContext*)ctx;
+}
+
+/**
+ * The filter is aware of hardware frames, and any hardware frame context
+ * should not be automatically propagated through it.
+ */
+#define FF_FILTER_FLAG_HWFRAME_AWARE (1 << 0)
+
+/**
+ * Find the index of a link.
+ *
+ * I.e. find i such that link == ctx->(in|out)puts[i]
+ */
+#define FF_INLINK_IDX(link)  ((int)((link)->dstpad - (link)->dst->input_pads))
+#define FF_OUTLINK_IDX(link) ((int)((link)->srcpad - (link)->src->output_pads))
+
+enum FilterFormatsState {
+    /**
+     * The default value meaning that this filter supports all formats
+     * and (for audio) sample rates and channel layouts/counts as long
+     * as these properties agree for all inputs and outputs.
+     * This state is only allowed in case all inputs and outputs actually
+     * have the same type.
+     * The union is unused in this state.
+     *
+     * This value must always be zero (for default static initialization).
+     */
+    FF_FILTER_FORMATS_PASSTHROUGH = 0,
+    FF_FILTER_FORMATS_QUERY_FUNC,       ///< formats.query active.
+    FF_FILTER_FORMATS_PIXFMT_LIST,      ///< formats.pixels_list active.
+    FF_FILTER_FORMATS_SAMPLEFMTS_LIST,  ///< formats.samples_list active.
+    FF_FILTER_FORMATS_SINGLE_PIXFMT,    ///< formats.pix_fmt active
+    FF_FILTER_FORMATS_SINGLE_SAMPLEFMT, ///< formats.sample_fmt active.
+};
+
+#define FILTER_QUERY_FUNC(func)        \
+        .formats.query_func   = func,  \
+        .formats_state        = FF_FILTER_FORMATS_QUERY_FUNC
+#define FILTER_PIXFMTS_ARRAY(array)    \
+        .formats.pixels_list  = array, \
+        .formats_state        = FF_FILTER_FORMATS_PIXFMT_LIST
+#define FILTER_SAMPLEFMTS_ARRAY(array) \
+        .formats.samples_list = array, \
+        .formats_state        = FF_FILTER_FORMATS_SAMPLEFMTS_LIST
+#define FILTER_PIXFMTS(...)            \
+    FILTER_PIXFMTS_ARRAY(((const enum AVPixelFormat []) { __VA_ARGS__, AV_PIX_FMT_NONE }))
+#define FILTER_SAMPLEFMTS(...)         \
+    FILTER_SAMPLEFMTS_ARRAY(((const enum AVSampleFormat[]) { __VA_ARGS__, AV_SAMPLE_FMT_NONE }))
+#define FILTER_SINGLE_PIXFMT(pix_fmt_)  \
+        .formats.pix_fmt = pix_fmt_,    \
+        .formats_state   = FF_FILTER_FORMATS_SINGLE_PIXFMT
+#define FILTER_SINGLE_SAMPLEFMT(sample_fmt_) \
+        .formats.sample_fmt = sample_fmt_,   \
+        .formats_state      = FF_FILTER_FORMATS_SINGLE_SAMPLEFMT
+
+#define FILTER_INOUTPADS(inout, array) \
+       .inout        = array, \
+       .nb_ ## inout = FF_ARRAY_ELEMS(array)
+#define FILTER_INPUTS(array) FILTER_INOUTPADS(inputs, (array))
+#define FILTER_OUTPUTS(array) FILTER_INOUTPADS(outputs, (array))
+
+#define AVFILTER_DEFINE_CLASS_EXT(name, desc, options) \
+    static const AVClass name##_class = {       \
+        .class_name = desc,                     \
+        .item_name  = av_default_item_name,     \
+        .option     = options,                  \
+        .version    = LIBAVUTIL_VERSION_INT,    \
+        .category   = AV_CLASS_CATEGORY_FILTER, \
+    }
+#define AVFILTER_DEFINE_CLASS(fname) \
+    AVFILTER_DEFINE_CLASS_EXT(fname, #fname, fname##_options)
+
+#define D2TS(d)      (isnan(d) ? AV_NOPTS_VALUE : (int64_t)(d))
+#define TS2D(ts)     ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts))
+#define TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts) * av_q2d(tb))
+
 /**
  * Mark a filter ready and schedule it for activation.
  *
@@ -257,6 +435,15 @@ int ff_outlink_frame_wanted(AVFilterLink *link);
  */
 int ff_outlink_get_status(AVFilterLink *link);
 
+/**
+ * Set the status field of a link from the source filter.
+ * The pts should reflect the timestamp of the status change,
+ * in link time base and relative to the frames timeline.
+ * In particular, for AVERROR_EOF, it should reflect the
+ * end time of the last frame.
+ */
+void ff_avfilter_link_set_in_status(AVFilterLink *link, int status, int64_t pts);
+
 /**
  * Set the status field of a link from the source filter.
  * The pts should reflect the timestamp of the status change,
@@ -344,4 +531,109 @@ static inline void ff_outlink_set_status(AVFilterLink *link, int status, int64_t
  */
 int ff_inoutlink_check_flow(AVFilterLink *inlink, AVFilterLink *outlink);
 
+/**
+ * Perform any additional setup required for hardware frames.
+ *
+ * link->hw_frames_ctx must be set before calling this function.
+ * Inside link->hw_frames_ctx, the fields format, sw_format, width and
+ * height must be set.  If dynamically allocated pools are not supported,
+ * then initial_pool_size must also be set, to the minimum hardware frame
+ * pool size necessary for the filter to work (taking into account any
+ * frames which need to stored for use in operations as appropriate).  If
+ * default_pool_size is nonzero, then it will be used as the pool size if
+ * no other modification takes place (this can be used to preserve
+ * compatibility).
+ */
+int ff_filter_init_hw_frames(AVFilterContext *avctx, AVFilterLink *link,
+                             int default_pool_size);
+
+/**
+ * Generic processing of user supplied commands that are set
+ * in the same way as the filter options.
+ * NOTE: 'enable' option is handled separately, and not by
+ * this function.
+ */
+int ff_filter_process_command(AVFilterContext *ctx, const char *cmd,
+                              const char *arg, char *res, int res_len, int flags);
+
+/**
+ * Get number of threads for current filter instance.
+ * This number is always same or less than graph->nb_threads.
+ */
+int ff_filter_get_nb_threads(AVFilterContext *ctx) av_pure;
+
+/**
+ * Send a frame of data to the next filter.
+ *
+ * @param link   the output link over which the data is being sent
+ * @param frame a reference to the buffer of data being sent. The
+ *              receiving filter will free this reference when it no longer
+ *              needs it or pass it on to the next filter.
+ *
+ * @return >= 0 on success, a negative AVERROR on error. The receiving filter
+ * is responsible for unreferencing frame in case of error.
+ */
+int ff_filter_frame(AVFilterLink *link, AVFrame *frame);
+
+/**
+ * Request an input frame from the filter at the other end of the link.
+ *
+ * This function must not be used by filters using the activate callback,
+ * use ff_link_set_frame_wanted() instead.
+ *
+ * The input filter may pass the request on to its inputs, fulfill the
+ * request from an internal buffer or any other means specific to its function.
+ *
+ * When the end of a stream is reached AVERROR_EOF is returned and no further
+ * frames are returned after that.
+ *
+ * When a filter is unable to output a frame for example due to its sources
+ * being unable to do so or because it depends on external means pushing data
+ * into it then AVERROR(EAGAIN) is returned.
+ * It is important that a AVERROR(EAGAIN) return is returned all the way to the
+ * caller (generally eventually a user application) as this step may (but does
+ * not have to be) necessary to provide the input with the next frame.
+ *
+ * If a request is successful then some progress has been made towards
+ * providing a frame on the link (through ff_filter_frame()). A filter that
+ * needs several frames to produce one is allowed to return success if one
+ * more frame has been processed but no output has been produced yet. A
+ * filter is also allowed to simply forward a success return value.
+ *
+ * @param link the input link
+ * @return     zero on success
+ *             AVERROR_EOF on end of file
+ *             AVERROR(EAGAIN) if the previous filter cannot output a frame
+ *             currently and can neither guarantee that EOF has been reached.
+ */
+int ff_request_frame(AVFilterLink *link);
+
+/**
+ * Append a new input/output pad to the filter's list of such pads.
+ *
+ * The *_free_name versions will set the AVFILTERPAD_FLAG_FREE_NAME flag
+ * ensuring that the name will be freed generically (even on insertion error).
+ */
+int ff_append_inpad (AVFilterContext *f, AVFilterPad *p);
+int ff_append_outpad(AVFilterContext *f, AVFilterPad *p);
+int ff_append_inpad_free_name (AVFilterContext *f, AVFilterPad *p);
+int ff_append_outpad_free_name(AVFilterContext *f, AVFilterPad *p);
+
+/**
+ * Tell if an integer is contained in the provided -1-terminated list of integers.
+ * This is useful for determining (for instance) if an AVPixelFormat is in an
+ * array of supported formats.
+ *
+ * @param fmt provided format
+ * @param fmts -1-terminated list of formats
+ * @return 1 if present, 0 if absent
+ */
+int ff_fmt_is_in(int fmt, const int *fmts);
+
+static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func,
+                                              void *arg, int *ret, int nb_jobs)
+{
+    return fffilterctx(ctx)->execute(ctx, func, arg, ret, nb_jobs);
+}
+
 #endif /* AVFILTER_FILTERS_H */

libavfilter/formats.c

@@ -26,6 +26,7 @@
 #include "libavutil/mem.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "formats.h"
 

libavfilter/graphdump.c

@@ -26,6 +26,7 @@
 #include "libavutil/mem.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 static int print_link_prop(AVBPrint *buf, AVFilterLink *link)

libavfilter/graphparser.c

@@ -30,6 +30,7 @@
 
 #include "avfilter.h"
 #include "avfilter_internal.h"
+#include "filters.h"
 #include "internal.h"
 
 #define WHITESPACES " \n\t\r"

libavfilter/internal.h

@@ -27,172 +27,6 @@
 #include "libavutil/internal.h"
 #include "avfilter.h"
 
-/**
- * A filter pad used for either input or output.
- */
-struct AVFilterPad {
-    /**
-     * Pad name. The name is unique among inputs and among outputs, but an
-     * input may have the same name as an output. This may be NULL if this
-     * pad has no need to ever be referenced by name.
-     */
-    const char *name;
-
-    /**
-     * AVFilterPad type.
-     */
-    enum AVMediaType type;
-
-    /**
-     * The filter expects writable frames from its input link,
-     * duplicating data buffers if needed.
-     *
-     * input pads only.
-     */
-#define AVFILTERPAD_FLAG_NEEDS_WRITABLE                  (1 << 0)
-
-    /**
-     * The pad's name is allocated and should be freed generically.
-     */
-#define AVFILTERPAD_FLAG_FREE_NAME                       (1 << 1)
-
-    /**
-     * A combination of AVFILTERPAD_FLAG_* flags.
-     */
-    int flags;
-
-    /**
-     * Callback functions to get a video/audio buffers. If NULL,
-     * the filter system will use ff_default_get_video_buffer() for video
-     * and ff_default_get_audio_buffer() for audio.
-     *
-     * The state of the union is determined by type.
-     *
-     * Input pads only.
-     */
-    union {
-        AVFrame *(*video)(AVFilterLink *link, int w, int h);
-        AVFrame *(*audio)(AVFilterLink *link, int nb_samples);
-    } get_buffer;
-
-    /**
-     * Filtering callback. This is where a filter receives a frame with
-     * audio/video data and should do its processing.
-     *
-     * Input pads only.
-     *
-     * @return >= 0 on success, a negative AVERROR on error. This function
-     * must ensure that frame is properly unreferenced on error if it
-     * hasn't been passed on to another filter.
-     */
-    int (*filter_frame)(AVFilterLink *link, AVFrame *frame);
-
-    /**
-     * Frame request callback. A call to this should result in some progress
-     * towards producing output over the given link. This should return zero
-     * on success, and another value on error.
-     *
-     * Output pads only.
-     */
-    int (*request_frame)(AVFilterLink *link);
-
-    /**
-     * Link configuration callback.
-     *
-     * For output pads, this should set the link properties such as
-     * width/height. This should NOT set the format property - that is
-     * negotiated between filters by the filter system using the
-     * query_formats() callback before this function is called.
-     *
-     * For input pads, this should check the properties of the link, and update
-     * the filter's internal state as necessary.
-     *
-     * For both input and output filters, this should return zero on success,
-     * and another value on error.
-     */
-    int (*config_props)(AVFilterLink *link);
-};
-
-typedef struct FFFilterContext {
-    /**
-     * The public AVFilterContext. See avfilter.h for it.
-     */
-    AVFilterContext p;
-
-    avfilter_execute_func *execute;
-
-    // 1 when avfilter_init_*() was successfully called on this filter
-    // 0 otherwise
-    int initialized;
-} FFFilterContext;
-
-static inline FFFilterContext *fffilterctx(AVFilterContext *ctx)
-{
-    return (FFFilterContext*)ctx;
-}
-
-static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func,
-                                              void *arg, int *ret, int nb_jobs)
-{
-    return fffilterctx(ctx)->execute(ctx, func, arg, ret, nb_jobs);
-}
-
-enum FilterFormatsState {
-    /**
-     * The default value meaning that this filter supports all formats
-     * and (for audio) sample rates and channel layouts/counts as long
-     * as these properties agree for all inputs and outputs.
-     * This state is only allowed in case all inputs and outputs actually
-     * have the same type.
-     * The union is unused in this state.
-     *
-     * This value must always be zero (for default static initialization).
-     */
-    FF_FILTER_FORMATS_PASSTHROUGH = 0,
-    FF_FILTER_FORMATS_QUERY_FUNC,       ///< formats.query active.
-    FF_FILTER_FORMATS_PIXFMT_LIST,      ///< formats.pixels_list active.
-    FF_FILTER_FORMATS_SAMPLEFMTS_LIST,  ///< formats.samples_list active.
-    FF_FILTER_FORMATS_SINGLE_PIXFMT,    ///< formats.pix_fmt active
-    FF_FILTER_FORMATS_SINGLE_SAMPLEFMT, ///< formats.sample_fmt active.
-};
-
-#define FILTER_QUERY_FUNC(func)        \
-        .formats.query_func   = func,  \
-        .formats_state        = FF_FILTER_FORMATS_QUERY_FUNC
-#define FILTER_PIXFMTS_ARRAY(array)    \
-        .formats.pixels_list  = array, \
-        .formats_state        = FF_FILTER_FORMATS_PIXFMT_LIST
-#define FILTER_SAMPLEFMTS_ARRAY(array) \
-        .formats.samples_list = array, \
-        .formats_state        = FF_FILTER_FORMATS_SAMPLEFMTS_LIST
-#define FILTER_PIXFMTS(...)            \
-    FILTER_PIXFMTS_ARRAY(((const enum AVPixelFormat []) { __VA_ARGS__, AV_PIX_FMT_NONE }))
-#define FILTER_SAMPLEFMTS(...)         \
-    FILTER_SAMPLEFMTS_ARRAY(((const enum AVSampleFormat[]) { __VA_ARGS__, AV_SAMPLE_FMT_NONE }))
-#define FILTER_SINGLE_PIXFMT(pix_fmt_)  \
-        .formats.pix_fmt = pix_fmt_,    \
-        .formats_state   = FF_FILTER_FORMATS_SINGLE_PIXFMT
-#define FILTER_SINGLE_SAMPLEFMT(sample_fmt_) \
-        .formats.sample_fmt = sample_fmt_,   \
-        .formats_state      = FF_FILTER_FORMATS_SINGLE_SAMPLEFMT
-
-#define FILTER_INOUTPADS(inout, array) \
-       .inout        = array, \
-       .nb_ ## inout = FF_ARRAY_ELEMS(array)
-#define FILTER_INPUTS(array) FILTER_INOUTPADS(inputs, (array))
-#define FILTER_OUTPUTS(array) FILTER_INOUTPADS(outputs, (array))
-
-/**
- * Tell if an integer is contained in the provided -1-terminated list of integers.
- * This is useful for determining (for instance) if an AVPixelFormat is in an
- * array of supported formats.
- *
- * @param fmt provided format
- * @param fmts -1-terminated list of formats
- * @return 1 if present, 0 if absent
- */
-int ff_fmt_is_in(int fmt, const int *fmts);
-
 /**
  * Returns true if a pixel format is "regular YUV", which includes all pixel
  * formats that are affected by YUV colorspace negotiation.
@@ -237,15 +71,6 @@ av_warn_unused_result
 int ff_parse_channel_layout(AVChannelLayout *ret, int *nret, const char *arg,
                             void *log_ctx);
 
-/**
- * Set the status field of a link from the source filter.
- * The pts should reflect the timestamp of the status change,
- * in link time base and relative to the frames timeline.
- * In particular, for AVERROR_EOF, it should reflect the
- * end time of the last frame.
- */
-void ff_avfilter_link_set_in_status(AVFilterLink *link, int status, int64_t pts);
-
 /**
  * Negotiate the media format, dimensions, etc of all inputs to a filter.
  *
@@ -254,10 +79,6 @@ void ff_avfilter_link_set_in_status(AVFilterLink *link, int status, int64_t pts)
  */
 int ff_filter_config_links(AVFilterContext *filter);
 
-#define D2TS(d)      (isnan(d) ? AV_NOPTS_VALUE : (int64_t)(d))
-#define TS2D(ts)     ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts))
-#define TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts) * av_q2d(tb))
-
 /* misc trace functions */
 
 #define FF_TPRINTF_START(ctx, func) ff_tlog(NULL, "%-16s: ", #func)
@@ -268,122 +89,9 @@ void ff_tlog_link(void *ctx, AVFilterLink *link, int end);
 #define ff_tlog_link(ctx, link, end) do { } while(0)
 #endif
 
-/**
- * Append a new input/output pad to the filter's list of such pads.
- *
- * The *_free_name versions will set the AVFILTERPAD_FLAG_FREE_NAME flag
- * ensuring that the name will be freed generically (even on insertion error).
- */
-int ff_append_inpad (AVFilterContext *f, AVFilterPad *p);
-int ff_append_outpad(AVFilterContext *f, AVFilterPad *p);
-int ff_append_inpad_free_name (AVFilterContext *f, AVFilterPad *p);
-int ff_append_outpad_free_name(AVFilterContext *f, AVFilterPad *p);
-
-/**
- * Request an input frame from the filter at the other end of the link.
- *
- * This function must not be used by filters using the activate callback,
- * use ff_link_set_frame_wanted() instead.
- *
- * The input filter may pass the request on to its inputs, fulfill the
- * request from an internal buffer or any other means specific to its function.
- *
- * When the end of a stream is reached AVERROR_EOF is returned and no further
- * frames are returned after that.
- *
- * When a filter is unable to output a frame for example due to its sources
- * being unable to do so or because it depends on external means pushing data
- * into it then AVERROR(EAGAIN) is returned.
- * It is important that a AVERROR(EAGAIN) return is returned all the way to the
- * caller (generally eventually a user application) as this step may (but does
- * not have to be) necessary to provide the input with the next frame.
- *
- * If a request is successful then some progress has been made towards
- * providing a frame on the link (through ff_filter_frame()). A filter that
- * needs several frames to produce one is allowed to return success if one
- * more frame has been processed but no output has been produced yet. A
- * filter is also allowed to simply forward a success return value.
- *
- * @param link the input link
- * @return     zero on success
- *             AVERROR_EOF on end of file
- *             AVERROR(EAGAIN) if the previous filter cannot output a frame
- *             currently and can neither guarantee that EOF has been reached.
- */
-int ff_request_frame(AVFilterLink *link);
-
-#define AVFILTER_DEFINE_CLASS_EXT(name, desc, options) \
-    static const AVClass name##_class = {       \
-        .class_name = desc,                     \
-        .item_name  = av_default_item_name,     \
-        .option     = options,                  \
-        .version    = LIBAVUTIL_VERSION_INT,    \
-        .category   = AV_CLASS_CATEGORY_FILTER, \
-    }
-#define AVFILTER_DEFINE_CLASS(fname) \
-    AVFILTER_DEFINE_CLASS_EXT(fname, #fname, fname##_options)
-
-/**
- * Find the index of a link.
- *
- * I.e. find i such that link == ctx->(in|out)puts[i]
- */
-#define FF_INLINK_IDX(link)  ((int)((link)->dstpad - (link)->dst->input_pads))
-#define FF_OUTLINK_IDX(link) ((int)((link)->srcpad - (link)->src->output_pads))
-
-/**
- * Send a frame of data to the next filter.
- *
- * @param link   the output link over which the data is being sent
- * @param frame a reference to the buffer of data being sent. The
- *              receiving filter will free this reference when it no longer
- *              needs it or pass it on to the next filter.
- *
- * @return >= 0 on success, a negative AVERROR on error. The receiving filter
- * is responsible for unreferencing frame in case of error.
- */
-int ff_filter_frame(AVFilterLink *link, AVFrame *frame);
-
-/**
- * The filter is aware of hardware frames, and any hardware frame context
- * should not be automatically propagated through it.
- */
-#define FF_FILTER_FLAG_HWFRAME_AWARE (1 << 0)
-
 /**
  * Run one round of processing on a filter graph.
  */
 int ff_filter_graph_run_once(AVFilterGraph *graph);
 
-/**
- * Get number of threads for current filter instance.
- * This number is always same or less than graph->nb_threads.
- */
-int ff_filter_get_nb_threads(AVFilterContext *ctx) av_pure;
-
-/**
- * Generic processing of user supplied commands that are set
- * in the same way as the filter options.
- * NOTE: 'enable' option is handled separately, and not by
- * this function.
- */
-int ff_filter_process_command(AVFilterContext *ctx, const char *cmd,
-                              const char *arg, char *res, int res_len, int flags);
-
-/**
- * Perform any additional setup required for hardware frames.
- *
- * link->hw_frames_ctx must be set before calling this function.
- * Inside link->hw_frames_ctx, the fields format, sw_format, width and
- * height must be set.  If dynamically allocated pools are not supported,
- * then initial_pool_size must also be set, to the minimum hardware frame
- * pool size necessary for the filter to work (taking into account any
- * frames which need to stored for use in operations as appropriate).  If
- * default_pool_size is nonzero, then it will be used as the pool size if
- * no other modification takes place (this can be used to preserve
- * compatibility).
- */
-int ff_filter_init_hw_frames(AVFilterContext *avctx, AVFilterLink *link,
-                             int default_pool_size);
-
 #endif /* AVFILTER_INTERNAL_H */

libavfilter/vf_addroi.c

@@ -20,6 +20,7 @@
 #include "libavutil/eval.h"
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_amplify.c

@@ -24,6 +24,7 @@
 #include "libavutil/pixdesc.h"
 
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_aspect.c

@@ -35,6 +35,7 @@
 #include "libavutil/pixdesc.h"
 
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_atadenoise.c

@@ -34,6 +34,7 @@
 #include "bufferqueue.h"
 
 #include "atadenoise.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_avgblur.c

@@ -26,6 +26,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_avgblur_opencl.c

@@ -26,6 +26,7 @@
 #include "libavutil/opt.h"
 
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "opencl.h"
 #include "opencl_source.h"

libavfilter/vf_avgblur_vulkan.c

@@ -22,6 +22,8 @@
 #include "libavutil/opt.h"
 #include "vulkan_filter.h"
 #include "vulkan_spirv.h"
+
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_backgroundkey.c

@@ -20,6 +20,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_bilateral.c

@@ -26,6 +26,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_bitplanenoise.c

@@ -21,6 +21,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_blackframe.c

@@ -33,6 +33,7 @@
 #include "libavutil/internal.h"
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_boxblur.c

@@ -29,6 +29,7 @@
 #include "libavutil/mem.h"
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 #include "video.h"

libavfilter/vf_bwdif.c

@@ -34,6 +34,7 @@
 #include "avfilter.h"
 #include "bwdifdsp.h"
 #include "ccfifo.h"
+#include "filters.h"
 #include "internal.h"
 #include "yadif.h"
 

libavfilter/vf_cas.c

@@ -19,6 +19,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/imgutils.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_chromaber_vulkan.c

@@ -22,6 +22,8 @@
 #include "libavutil/opt.h"
 #include "vulkan_filter.h"
 #include "vulkan_spirv.h"
+
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_chromakey.c

@@ -22,6 +22,7 @@
 #include "libavutil/intreadwrite.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct ChromakeyContext {

libavfilter/vf_chromanr.c

@@ -23,6 +23,7 @@
 #include "libavutil/pixdesc.h"
 
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_chromashift.c

@@ -23,6 +23,7 @@
 #include "libavutil/pixdesc.h"
 
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_ciescope.c

@@ -25,6 +25,7 @@
 #include "libavutil/parseutils.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 #include "video.h"

libavfilter/vf_codecview.c

@@ -35,6 +35,7 @@
 #include "libavutil/pixdesc.h"
 #include "libavutil/video_enc_params.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "qp_table.h"
 #include "internal.h"
 #include "video.h"

libavfilter/vf_colorbalance.c

@@ -22,6 +22,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 #include "drawutils.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_colorchannelmixer.c

@@ -25,6 +25,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 #include "drawutils.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 #include "preserve_color.h"

libavfilter/vf_colorconstancy.c

@@ -33,6 +33,7 @@
 #include "libavutil/pixdesc.h"
 
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_colorcontrast.c

@@ -24,6 +24,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 #include "drawutils.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_colorcorrect.c

@@ -24,6 +24,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_colorize.c

@@ -19,6 +19,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_colorkey.c

@@ -24,6 +24,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 #include "drawutils.h"
+#include "filters.h"
 #include "internal.h"
 
 typedef struct ColorkeyContext {

libavfilter/vf_colorkey_opencl.c

@@ -18,6 +18,7 @@
 
 #include "libavutil/opt.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "opencl.h"
 #include "opencl_source.h"

libavfilter/vf_colorlevels.c

@@ -22,6 +22,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 #include "drawutils.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 #include "preserve_color.h"

libavfilter/vf_colormatrix.c

@@ -30,6 +30,7 @@
 
 #include <float.h>
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 #include "libavutil/opt.h"

libavfilter/vf_colorspace.c

@@ -33,6 +33,7 @@
 
 #include "avfilter.h"
 #include "colorspacedsp.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 #include "video.h"

libavfilter/vf_colortemperature.c

@@ -24,6 +24,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 #include "drawutils.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_convolution.c

@@ -30,6 +30,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 #include "convolution.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_convolution_opencl.c

@@ -30,6 +30,7 @@
 
 
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "opencl.h"
 #include "opencl_source.h"

libavfilter/vf_copy.c

@@ -24,6 +24,7 @@
 #include "libavutil/imgutils.h"
 #include "libavutil/internal.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "formats.h"
 #include "internal.h"
 #include "video.h"

libavfilter/vf_cropdetect.c

@@ -31,6 +31,7 @@
 #include "libavutil/qsort.h"
 
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 #include "edge_common.h"

libavfilter/vf_curves.c

@@ -29,6 +29,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 #include "drawutils.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"
 

libavfilter/vf_dblur.c

@@ -23,6 +23,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
+#include "filters.h"
 #include "internal.h"
 #include "video.h"