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FFmpeg
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#include <stdbool.h>#include "libavutil/slicethread.h"#include "libavutil/buffer.h"#include "swscale.h"#include "format.h"Go to the source code of this file.
Data Structures | |
| struct | SwsPassBuffer |
| Represents an allocated output buffer for a filter pass. More... | |
| struct | SwsPass |
| Represents a single filter pass in the scaling graph. More... | |
| struct | SwsGraph |
| Filter graph, which represents a 'baked' pixel format conversion. More... | |
Typedefs | |
| typedef void(* | sws_filter_run_t) (const SwsFrame *out, const SwsFrame *in, int y, int h, const SwsPass *pass) |
Output h lines of filtered data. More... | |
Functions | |
| static av_always_inline av_const int | ff_fmt_vshift (enum AVPixelFormat fmt, int plane) |
| int | ff_sws_graph_create (SwsContext *ctx, const SwsFormat *dst, const SwsFormat *src, int field, SwsGraph **out_graph) |
| Allocate and initialize the filter graph. More... | |
| SwsPass * | ff_sws_graph_add_pass (SwsGraph *graph, enum AVPixelFormat fmt, int width, int height, SwsPass *input, int align, void *priv, sws_filter_run_t run) |
| Allocate and add a new pass to the filter graph. More... | |
| void | ff_sws_graph_free (SwsGraph **graph) |
| Uninitialize any state associate with this filter graph and free it. More... | |
| void | ff_sws_graph_update_metadata (SwsGraph *graph, const SwsColor *color) |
| Update dynamic per-frame HDR metadata without requiring a full reinit. More... | |
| int | ff_sws_graph_reinit (SwsContext *ctx, const SwsFormat *dst, const SwsFormat *src, int field, SwsGraph **graph) |
| Wrapper around ff_sws_graph_create() that reuses the existing graph if the format is compatible. More... | |
| void | ff_sws_graph_run (SwsGraph *graph, const AVFrame *dst, const AVFrame *src) |
| Dispatch the filter graph on a single field of the given frames. More... | |
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static |
Definition at line 32 of file graph.h.
Referenced by frame_shift(), and run_copy().
| int ff_sws_graph_create | ( | SwsContext * | ctx, |
| const SwsFormat * | dst, | ||
| const SwsFormat * | src, | ||
| int | field, | ||
| SwsGraph ** | out_graph | ||
| ) |
Allocate and initialize the filter graph.
Returns 0 or a negative error.
Definition at line 771 of file graph.c.
Referenced by ff_sws_graph_reinit().
| SwsPass* ff_sws_graph_add_pass | ( | SwsGraph * | graph, |
| enum AVPixelFormat | fmt, | ||
| int | width, | ||
| int | height, | ||
| SwsPass * | input, | ||
| int | align, | ||
| void * | priv, | ||
| sws_filter_run_t | run | ||
| ) |
Allocate and add a new pass to the filter graph.
| graph | Filter graph to add the pass to. |
| fmt | Pixel format of the output image. |
| w | Width of the output image. |
| h | Height of the output image. |
| input | Previous pass to read from, or NULL for the input image. |
| align | Minimum slice alignment for this pass, or 0 for no threading. |
| priv | Private state for the filter run function. |
| run | Filter function to run. |
Definition at line 107 of file graph.c.
Referenced by adapt_colors(), init_legacy_subpass(), init_passes(), and pass_append().
| void ff_sws_graph_free | ( | SwsGraph ** | graph | ) |
Uninitialize any state associate with this filter graph and free it.
Definition at line 806 of file graph.c.
Referenced by ff_sws_graph_create(), ff_sws_graph_reinit(), sws_frame_setup(), and sws_freeContext().
Update dynamic per-frame HDR metadata without requiring a full reinit.
Definition at line 860 of file graph.c.
Referenced by ff_sws_graph_reinit().
| int ff_sws_graph_reinit | ( | SwsContext * | ctx, |
| const SwsFormat * | dst, | ||
| const SwsFormat * | src, | ||
| int | field, | ||
| SwsGraph ** | graph | ||
| ) |
Wrapper around ff_sws_graph_create() that reuses the existing graph if the format is compatible.
This will also update dynamic per-frame metadata. Must be called after changing any of the fields in ctx, or else they will have no effect.
Definition at line 844 of file graph.c.
Referenced by sws_frame_setup().
1.8.17