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author | Michael Niedermayer <michaelni@gmx.at> | 2013-04-11 23:40:41 +0200 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2013-04-11 23:50:39 +0200 |
commit | 231fd4411ff35762cb82145c9bebc2dd1db191e0 (patch) | |
tree | 053e96f54c1d5ad892d0546b5260f6c32cf329b1 /libavfilter/avfiltergraph.h | |
parent | 9110f95985a0860ba7707cb57524a756c74551e3 (diff) | |
parent | 38f0c0781a6e099f11c0acec07f9b8be742190c4 (diff) | |
download | ffmpeg-231fd4411ff35762cb82145c9bebc2dd1db191e0.tar.gz |
Merge commit '38f0c0781a6e099f11c0acec07f9b8be742190c4'
* commit '38f0c0781a6e099f11c0acec07f9b8be742190c4':
lavfi: merge avfiltergraph.h into avfilter.h
Conflicts:
doc/APIchanges
ffmpeg_filter.c
libavfilter/avfilter.h
libavfilter/avfiltergraph.h
libavfilter/version.h
tools/graph2dot.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavfilter/avfiltergraph.h')
-rw-r--r-- | libavfilter/avfiltergraph.h | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/libavfilter/avfiltergraph.h b/libavfilter/avfiltergraph.h index 2210bfe0fd..b31d581ca0 100644 --- a/libavfilter/avfiltergraph.h +++ b/libavfilter/avfiltergraph.h @@ -25,256 +25,4 @@ #include "avfilter.h" #include "libavutil/log.h" -typedef struct AVFilterGraph { - const AVClass *av_class; -#if FF_API_FOO_COUNT - attribute_deprecated - unsigned filter_count_unused; -#endif - AVFilterContext **filters; -#if !FF_API_FOO_COUNT - unsigned nb_filters; -#endif - - char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters - char *resample_lavr_opts; ///< libavresample options to use for the auto-inserted resample filters -#if FF_API_FOO_COUNT - unsigned nb_filters; -#endif - char *aresample_swr_opts; ///< swr options to use for the auto-inserted aresample filters, Access ONLY through AVOptions - - /** - * Private fields - * - * The following fields are for internal use only. - * Their type, offset, number and semantic can change without notice. - */ - - AVFilterLink **sink_links; - int sink_links_count; - - unsigned disable_auto_convert; -} AVFilterGraph; - -/** - * Allocate a filter graph. - */ -AVFilterGraph *avfilter_graph_alloc(void); - -/** - * Get a filter instance with name name from graph. - * - * @return the pointer to the found filter instance or NULL if it - * cannot be found. - */ -AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name); - -/** - * Add an existing filter instance to a filter graph. - * - * @param graphctx the filter graph - * @param filter the filter to be added - */ -int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter); - -/** - * Create and add a filter instance into an existing graph. - * The filter instance is created from the filter filt and inited - * with the parameters args and opaque. - * - * In case of success put in *filt_ctx the pointer to the created - * filter instance, otherwise set *filt_ctx to NULL. - * - * @param name the instance name to give to the created filter instance - * @param graph_ctx the filter graph - * @return a negative AVERROR error code in case of failure, a non - * negative value otherwise - */ -int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt, - const char *name, const char *args, void *opaque, - AVFilterGraph *graph_ctx); - -/** - * Enable or disable automatic format conversion inside the graph. - * - * Note that format conversion can still happen inside explicitly inserted - * scale and aresample filters. - * - * @param flags any of the AVFILTER_AUTO_CONVERT_* constants - */ -void avfilter_graph_set_auto_convert(AVFilterGraph *graph, unsigned flags); - -enum { - AVFILTER_AUTO_CONVERT_ALL = 0, /**< all automatic conversions enabled */ - AVFILTER_AUTO_CONVERT_NONE = -1, /**< all automatic conversions disabled */ -}; - -/** - * Check validity and configure all the links and formats in the graph. - * - * @param graphctx the filter graph - * @param log_ctx context used for logging - * @return 0 in case of success, a negative AVERROR code otherwise - */ -int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx); - -/** - * Free a graph, destroy its links, and set *graph to NULL. - * If *graph is NULL, do nothing. - */ -void avfilter_graph_free(AVFilterGraph **graph); - -/** - * A linked-list of the inputs/outputs of the filter chain. - * - * This is mainly useful for avfilter_graph_parse() / avfilter_graph_parse2(), - * where it is used to communicate open (unlinked) inputs and outputs from and - * to the caller. - * This struct specifies, per each not connected pad contained in the graph, the - * filter context and the pad index required for establishing a link. - */ -typedef struct AVFilterInOut { - /** unique name for this input/output in the list */ - char *name; - - /** filter context associated to this input/output */ - AVFilterContext *filter_ctx; - - /** index of the filt_ctx pad to use for linking */ - int pad_idx; - - /** next input/input in the list, NULL if this is the last */ - struct AVFilterInOut *next; -} AVFilterInOut; - -/** - * Allocate a single AVFilterInOut entry. - * Must be freed with avfilter_inout_free(). - * @return allocated AVFilterInOut on success, NULL on failure. - */ -AVFilterInOut *avfilter_inout_alloc(void); - -/** - * Free the supplied list of AVFilterInOut and set *inout to NULL. - * If *inout is NULL, do nothing. - */ -void avfilter_inout_free(AVFilterInOut **inout); - -/** - * Add a graph described by a string to a graph. - * - * @param graph the filter graph where to link the parsed graph context - * @param filters string to be parsed - * @param inputs pointer to a linked list to the inputs of the graph, may be NULL. - * If non-NULL, *inputs is updated to contain the list of open inputs - * after the parsing, should be freed with avfilter_inout_free(). - * @param outputs pointer to a linked list to the outputs of the graph, may be NULL. - * If non-NULL, *outputs is updated to contain the list of open outputs - * after the parsing, should be freed with avfilter_inout_free(). - * @return non negative on success, a negative AVERROR code on error - */ -int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, - AVFilterInOut **inputs, AVFilterInOut **outputs, - void *log_ctx); - -/** - * Add a graph described by a string to a graph. - * - * @param[in] graph the filter graph where to link the parsed graph context - * @param[in] filters string to be parsed - * @param[out] inputs a linked list of all free (unlinked) inputs of the - * parsed graph will be returned here. It is to be freed - * by the caller using avfilter_inout_free(). - * @param[out] outputs a linked list of all free (unlinked) outputs of the - * parsed graph will be returned here. It is to be freed by the - * caller using avfilter_inout_free(). - * @return zero on success, a negative AVERROR code on error - * - * @note the difference between avfilter_graph_parse2() and - * avfilter_graph_parse() is that in avfilter_graph_parse(), the caller provides - * the lists of inputs and outputs, which therefore must be known before calling - * the function. On the other hand, avfilter_graph_parse2() \em returns the - * inputs and outputs that are left unlinked after parsing the graph and the - * caller then deals with them. Another difference is that in - * avfilter_graph_parse(), the inputs parameter describes inputs of the - * <em>already existing</em> part of the graph; i.e. from the point of view of - * the newly created part, they are outputs. Similarly the outputs parameter - * describes outputs of the already existing filters, which are provided as - * inputs to the parsed filters. - * avfilter_graph_parse2() takes the opposite approach -- it makes no reference - * whatsoever to already existing parts of the graph and the inputs parameter - * will on return contain inputs of the newly parsed part of the graph. - * Analogously the outputs parameter will contain outputs of the newly created - * filters. - */ -int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters, - AVFilterInOut **inputs, - AVFilterInOut **outputs); - - -/** - * Send a command to one or more filter instances. - * - * @param graph the filter graph - * @param target the filter(s) to which the command should be sent - * "all" sends to all filters - * otherwise it can be a filter or filter instance name - * which will send the command to all matching filters. - * @param cmd the command to sent, for handling simplicity all commands must be alphanumeric only - * @param arg the argument for the command - * @param res a buffer with size res_size where the filter(s) can return a response. - * - * @returns >=0 on success otherwise an error code. - * AVERROR(ENOSYS) on unsupported commands - */ -int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags); - -/** - * Queue a command for one or more filter instances. - * - * @param graph the filter graph - * @param target the filter(s) to which the command should be sent - * "all" sends to all filters - * otherwise it can be a filter or filter instance name - * which will send the command to all matching filters. - * @param cmd the command to sent, for handling simplicity all commands must be alphanummeric only - * @param arg the argument for the command - * @param ts time at which the command should be sent to the filter - * - * @note As this executes commands after this function returns, no return code - * from the filter is provided, also AVFILTER_CMD_FLAG_ONE is not supported. - */ -int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, int flags, double ts); - - -/** - * Dump a graph into a human-readable string representation. - * - * @param graph the graph to dump - * @param options formatting options; currently ignored - * @return a string, or NULL in case of memory allocation failure; - * the string must be freed using av_free - */ -char *avfilter_graph_dump(AVFilterGraph *graph, const char *options); - -/** - * Request a frame on the oldest sink link. - * - * If the request returns AVERROR_EOF, try the next. - * - * Note that this function is not meant to be the sole scheduling mechanism - * of a filtergraph, only a convenience function to help drain a filtergraph - * in a balanced way under normal circumstances. - * - * Also note that AVERROR_EOF does not mean that frames did not arrive on - * some of the sinks during the process. - * When there are multiple sink links, in case the requested link - * returns an EOF, this may cause a filter to flush pending frames - * which are sent to another sink link, although unrequested. - * - * @return the return value of ff_request_frame(), - * or AVERROR_EOF if all links returned AVERROR_EOF - */ -int avfilter_graph_request_oldest(AVFilterGraph *graph); - #endif /* AVFILTER_AVFILTERGRAPH_H */ |