Port pred8x8l_down_right_mmxext (H.264 intra prediction) from x264 (authors:

[ffmpeg] / cmdutils.h

diff --git a/cmdutils.h b/cmdutils.h
index c2c3c466add542b89438fcaceff10a01367897dd..9fb7845971e57bc94040f3767da468bfeee7e325 100644 (file)
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -44,6 +44,17 @@ 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.
@@ -138,7 +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
@@ -234,20 +245,60 @@ typedef struct {
 } PtsCorrectionContext;
 
 /**
- * Resets the state of the PtsCorrectionContext.
+ * Reset the state of the PtsCorrectionContext.
  */
 void init_pts_correction(PtsCorrectionContext *ctx);
 
 /**
- * Attempts to guess proper monotonic timestamps for decoded video frames
+ * 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
+ * @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.
+ * @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);
 
+/**
+ * Get a file corresponding to a preset file.
+ *
+ * If is_path is non-zero, look for the file in the path preset_name.
+ * Otherwise search for a file named arg.ffpreset in the directories
+ * $FFMPEG_DATADIR (if set), $HOME/.ffmpeg, and in the datadir defined
+ * at configuration time, in that order. If no such file is found and
+ * codec_name is defined, then search for a file named
+ * codec_name-preset_name.ffpreset in the above-mentioned directories.
+ *
+ * @param filename buffer where the name of the found filename is written
+ * @param filename_size size in bytes of the filename buffer
+ * @param preset_name name of the preset to search
+ * @param is_path tell if preset_name is a filename path
+ * @param codec_name name of the codec for which to look for the
+ * preset, may be NULL
+ */
+FILE *get_preset_file(char *filename, size_t filename_size,
+                      const char *preset_name, int is_path, const char *codec_name);
+
+#if CONFIG_AVFILTER
+#include "libavfilter/avfilter.h"
+
+typedef struct {
+    enum PixelFormat pix_fmt;
+} FFSinkContext;
+
+extern AVFilter ffsink;
+
+/**
+ * Extract a frame from sink.
+ *
+ * @return a negative error in case of failure, 1 if one frame has
+ * been extracted successfully.
+ */
+int get_filtered_video_frame(AVFilterContext *sink, AVFrame *frame,
+                             AVFilterBufferRef **picref, AVRational *pts_tb);
+
+#endif /* CONFIG_AVFILTER */
+
 #endif /* FFMPEG_CMDUTILS_H */