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>

5 files changed, 253 insertions, 256 deletions

diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 40be955e0a..296cc420b1 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -912,6 +912,257 @@ int avfilter_copy_buf_props(AVFrame *dst, const AVFilterBufferRef *src);
  */
 const AVClass *avfilter_get_class(void);
 
+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);
+
 /**
  * @}
  */
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index 75e828feeb..28fc743b59 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -30,7 +30,6 @@
 #include "libavutil/pixdesc.h"
 #include "libavcodec/avcodec.h" // avcodec_find_best_pix_fmt_of_2()
 #include "avfilter.h"
-#include "avfiltergraph.h"
 #include "formats.h"
 #include "internal.h"
 
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 */
diff --git a/libavfilter/graphparser.c b/libavfilter/graphparser.c
index a1e1b37fc9..2911b06693 100644
--- a/libavfilter/graphparser.c
+++ b/libavfilter/graphparser.c
@@ -26,7 +26,6 @@
 #include "libavutil/avstring.h"
 #include "libavutil/mem.h"
 #include "avfilter.h"
-#include "avfiltergraph.h"
 
 #define WHITESPACES " \n\t"
 
diff --git a/libavfilter/version.h b/libavfilter/version.h
index 021ff0520d..f23d9c1d2f 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -29,8 +29,8 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  3
-#define LIBAVFILTER_VERSION_MINOR  52
-#define LIBAVFILTER_VERSION_MICRO 102
+#define LIBAVFILTER_VERSION_MINOR  53
+#define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \