X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=cmdutils.h;h=3bb1cd616ba00cb774310ce3a6dd91519007a3a4;hb=3102fb0351fb9dd96543b3f1b9c4c04758226ee5;hp=78867b78a15a012b150b2a794699f81468fb2a5e;hpb=49bd8e4b843d9a92fdb8ef4361a551a1e019c65d;p=ffmpeg diff --git a/cmdutils.h b/cmdutils.h index 78867b78a15..3bb1cd616ba 100644 --- a/cmdutils.h +++ b/cmdutils.h @@ -2,28 +2,30 @@ * 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 -#include #include "libavcodec/avcodec.h" +#include "libavfilter/avfilter.h" #include "libavformat/avformat.h" #include "libswscale/swscale.h" @@ -37,13 +39,28 @@ extern const char program_name[]; */ 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; +/** + * 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. @@ -107,6 +124,7 @@ typedef struct { #define OPT_FUNC2 0x0400 #define OPT_INT64 0x0800 #define OPT_EXIT 0x1000 +#define OPT_DATA 0x2000 union { void (*func_arg)(const char *); //FIXME passing error code as int return would be nicer then exit() in the func int *int_arg; @@ -124,7 +142,7 @@ 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 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 +150,7 @@ 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 @@ -145,8 +163,6 @@ void set_context_opts(void *ctx, void *opts_ctx, int flags); */ 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 @@ -204,8 +220,8 @@ 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 +236,63 @@ int read_yesno(void); */ 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 */