* Various utilities for command line tools
* copyright (c) 2003 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef FFMPEG_CMDUTILS_H
-#define FFMPEG_CMDUTILS_H
+#ifndef LIBAV_CMDUTILS_H
+#define LIBAV_CMDUTILS_H
+
+#include <stdint.h>
-#include <inttypes.h>
#include "libavcodec/avcodec.h"
+#include "libavfilter/avfilter.h"
#include "libavformat/avformat.h"
#include "libswscale/swscale.h"
*/
extern const int program_birth_year;
-extern const int this_year;
-
-extern const char **opt_names;
extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
extern AVFormatContext *avformat_opts;
extern struct SwsContext *sws_opts;
+extern AVDictionary *format_opts, *codec_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.
#define OPT_INT 0x0080
#define OPT_FLOAT 0x0100
#define OPT_SUBTITLE 0x0200
-#define OPT_FUNC2 0x0400
-#define OPT_INT64 0x0800
-#define OPT_EXIT 0x1000
+#define OPT_INT64 0x0400
+#define OPT_EXIT 0x0800
+#define OPT_DATA 0x1000
union {
- void (*func_arg)(const char *); //FIXME passing error code as int return would be nicer then exit() in the func
int *int_arg;
char **str_arg;
float *float_arg;
- int (*func2_arg)(const char *, const char *);
+ int (*func_arg)(const char *, const char *);
int64_t *int64_arg;
} u;
const char *help;
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);
+/**
+ * Filter out options for given codec.
+ */
+AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id, int encoder);
+
+/*
+ * Setup AVCodecContext options for avformat_find_stream_info.
+ */
+AVDictionary **setup_find_stream_info_opts(AVFormatContext *s);
/**
* Print an error message to stderr, indicating filename and a human
*/
void print_error(const char *filename, int err);
-void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts);
-
/**
* Print the program banner to stderr. The banner contents depend on the
* current version of the repository and of the libav* libraries used by
*/
int read_file(const char *filename, char **bufptr, size_t *size);
-#endif /* FFMPEG_CMDUTILS_H */
+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);
+
+/**
+ * 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);
+
+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 /* LIBAV_CMDUTILS_H */
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