Share the is_multicast_address function

[ffmpeg] / cmdutils.h

diff --git a/cmdutils.h b/cmdutils.h
index 78867b78a15a012b150b2a794699f81468fb2a5e..4ce62b64a8e9aa50b2d5bc32b93d16a793b2b768 100644 (file)
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -44,6 +44,23 @@ extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
 extern AVFormatContext *avformat_opts;
 extern struct SwsContext *sws_opts;
 
+/**
+ * Initialize the cmdutils option system, in particular
+ * allocate the *_opts contexts.
+ */
+void init_opts(void);
+/**
+ * Uninitialize the cmdutils option system, in particular
+ * free the *_opts contexts and their contents.
+ */
+void uninit_opts(void);
+
+/**
+ * Trivial log callback.
+ * Only suitable for show_help and similar since it lacks prefix handling.
+ */
+void log_callback_help(void* ptr, int level, const char* fmt, va_list vl);
+
 /**
  * Fallback for options that are not explicitly handled, these will be
  * parsed through AVOptions.
@@ -124,7 +141,7 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
 /**
  * Parse the command line arguments.
  * @param options Array with the definitions required to interpret every
- * option of the form: -<option_name> [<argument>]
+ * option of the form: -option_name [argument]
  * @param parse_arg_function Name of the function called to process every
  * argument without a leading option name flag. NULL if such arguments do
  * not have to be processed.
@@ -132,7 +149,7 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
 void parse_options(int argc, char **argv, const OptionDef *options,
                    void (* parse_arg_function)(const char*));
 
-void set_context_opts(void *ctx, void *opts_ctx, int flags);
+void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec);
 
 /**
  * Print an error message to stderr, indicating filename and a human
@@ -204,8 +221,8 @@ void show_protocols(void);
 void show_pix_fmts(void);
 
 /**
- * Return a positive value if reads from standard input a line
- * starting with [yY], otherwise returns 0.
+ * Return a positive value if a line read from standard input
+ * starts with [yY], otherwise return 0.
  */
 int read_yesno(void);
 
@@ -220,4 +237,28 @@ int read_yesno(void);
  */
 int read_file(const char *filename, char **bufptr, size_t *size);
 
+typedef struct {
+    int64_t num_faulty_pts; /// Number of incorrect PTS values so far
+    int64_t num_faulty_dts; /// Number of incorrect DTS values so far
+    int64_t last_pts;       /// PTS of the last frame
+    int64_t last_dts;       /// DTS of the last frame
+} PtsCorrectionContext;
+
+/**
+ * Reset the state of the PtsCorrectionContext.
+ */
+void init_pts_correction(PtsCorrectionContext *ctx);
+
+/**
+ * Attempt to guess proper monotonic timestamps for decoded video frames
+ * which might have incorrect times. Input timestamps may wrap around, in
+ * which case the output will as well.
+ *
+ * @param pts the pts field of the decoded AVPacket, as passed through
+ * AVCodecContext.reordered_opaque
+ * @param dts the dts field of the decoded AVPacket
+ * @return one of the input values, may be AV_NOPTS_VALUE
+ */
+int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t pts, int64_t dts);
+
 #endif /* FFMPEG_CMDUTILS_H */