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FFmpeg
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#include <string.h>#include <stdio.h>#include "libavutil/avstring.h"#include "libavutil/mem.h"#include "avfilter.h"
Go to the source code of this file.
Macros | |
| #define | WHITESPACES " \n\t" |
Functions | |
| static int | link_filter (AVFilterContext *src, int srcpad, AVFilterContext *dst, int dstpad, void *log_ctx) |
| Link two filters together. More... | |
| static char * | parse_link_name (const char **buf, void *log_ctx) |
| Parse the name of a link, which has the format "[linkname]". More... | |
| static int | create_filter (AVFilterContext **filt_ctx, AVFilterGraph *ctx, int index, const char *filt_name, const char *args, void *log_ctx) |
| Create an instance of a filter, initialize and insert it in the filtergraph in *ctx. More... | |
| static int | parse_filter (AVFilterContext **filt_ctx, const char **buf, AVFilterGraph *graph, int index, void *log_ctx) |
| Parse a string of the form FILTER_NAME[=PARAMS], and create a corresponding filter instance which is added to graph with create_filter(). More... | |
| AVFilterInOut * | avfilter_inout_alloc (void) |
| Allocate a single AVFilterInOut entry. More... | |
| void | avfilter_inout_free (AVFilterInOut **inout) |
| Free the supplied list of AVFilterInOut and set *inout to NULL. More... | |
| static AVFilterInOut * | extract_inout (const char *label, AVFilterInOut **links) |
| static void | insert_inout (AVFilterInOut **inouts, AVFilterInOut *element) |
| static void | append_inout (AVFilterInOut **inouts, AVFilterInOut **element) |
| static int | link_filter_inouts (AVFilterContext *filt_ctx, AVFilterInOut **curr_inputs, AVFilterInOut **open_inputs, void *log_ctx) |
| static int | parse_inputs (const char **buf, AVFilterInOut **curr_inputs, AVFilterInOut **open_outputs, void *log_ctx) |
| static int | parse_outputs (const char **buf, AVFilterInOut **curr_inputs, AVFilterInOut **open_inputs, AVFilterInOut **open_outputs, void *log_ctx) |
| static int | parse_sws_flags (const char **buf, AVFilterGraph *graph) |
| int | avfilter_graph_parse2 (AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs) |
| Add a graph described by a string to a graph. More... | |
| int | avfilter_graph_parse (AVFilterGraph *graph, const char *filters, AVFilterInOut **open_inputs_ptr, AVFilterInOut **open_outputs_ptr, void *log_ctx) |
| Add a graph described by a string to a graph. More... | |
Macro Definition Documentation
| #define WHITESPACES " \n\t" |
Definition at line 30 of file graphparser.c.
Referenced by avfilter_graph_parse(), avfilter_graph_parse2(), parse_inputs(), and parse_outputs().
Function Documentation
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Definition at line 208 of file graphparser.c.
Referenced by avfilter_graph_parse2(), link_filter_inouts(), and parse_inputs().
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Create an instance of a filter, initialize and insert it in the filtergraph in *ctx.
- Parameters
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filt_ctx put here a filter context in case of successful creation and configuration, NULL otherwise. ctx the filtergraph context index an index which is supposed to be unique for each filter instance added to the filtergraph filt_name the name of the filter to create args the arguments provided to the filter during its initialization log_ctx the log context to use
- Returns
- 0 in case of success, a negative AVERROR code otherwise
Definition at line 94 of file graphparser.c.
Referenced by parse_filter().
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Definition at line 185 of file graphparser.c.
Referenced by avfilter_graph_parse(), parse_inputs(), and parse_outputs().
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Definition at line 202 of file graphparser.c.
Referenced by link_filter_inouts(), and parse_outputs().
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Link two filters together.
- See also
- avfilter_link()
Definition at line 37 of file graphparser.c.
Referenced by link_filter_inouts(), and parse_outputs().
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Definition at line 220 of file graphparser.c.
Referenced by avfilter_graph_parse(), and avfilter_graph_parse2().
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Parse a string of the form FILTER_NAME[=PARAMS], and create a corresponding filter instance which is added to graph with create_filter().
- Parameters
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filt_ctx Pointer that is set to the created and configured filter context on success, set to NULL on failure. filt_ctx put here a pointer to the created filter context on success, NULL otherwise buf pointer to the buffer to parse, *buf will be updated to point to the char next after the parsed string index an index which is assigned to the created filter instance, and which is supposed to be unique for each filter instance added to the filtergraph
- Returns
- 0 in case of success, a negative AVERROR code otherwise
Definition at line 152 of file graphparser.c.
Referenced by avfilter_graph_parse(), and avfilter_graph_parse2().
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Definition at line 268 of file graphparser.c.
Referenced by avfilter_graph_parse(), and avfilter_graph_parse2().
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Parse the name of a link, which has the format "[linkname]".
- Returns
- a pointer (that need to be freed after use) to the name between parenthesis
Definition at line 58 of file graphparser.c.
Referenced by parse_inputs(), and parse_outputs().
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Definition at line 308 of file graphparser.c.
Referenced by avfilter_graph_parse(), and avfilter_graph_parse2().
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Definition at line 356 of file graphparser.c.
Referenced by avfilter_graph_parse(), and avfilter_graph_parse2().
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