+++ /dev/null
-/*
- * Copyright (c) 2006 Smartjog S.A.S, Baptiste Coudurier <baptiste.coudurier@gmail.com>
- * Copyright (c) 2011-2012 Smartjog S.A.S, Clément Bœsch <clement.boesch@smartjog.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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,
- * 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
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * Timecode helpers header
- */
-
-#ifndef AVUTIL_TIMECODE_H
-#define AVUTIL_TIMECODE_H
-
-#include <stdint.h>
-#include "rational.h"
-
-#define AV_TIMECODE_STR_SIZE 16
-
-enum AVTimecodeFlag {
- AV_TIMECODE_FLAG_DROPFRAME = 1<<0, ///< timecode is drop frame
- AV_TIMECODE_FLAG_24HOURSMAX = 1<<1, ///< timecode wraps after 24 hours
- AV_TIMECODE_FLAG_ALLOWNEGATIVE = 1<<2, ///< negative time values are allowed
-};
-
-typedef struct {
- int start; ///< timecode frame start (first base frame number)
- uint32_t flags; ///< flags such as drop frame, +24 hours support, ...
- AVRational rate; ///< frame rate in rational form
- unsigned fps; ///< frame per second; must be consistent with the rate field
-} AVTimecode;
-
-/**
- * Adjust frame number for NTSC drop frame time code.
- *
- * @param framenum frame number to adjust
- * @param fps frame per second, 30 or 60
- * @return adjusted frame number
- * @warning adjustment is only valid in NTSC 29.97 and 59.94
- */
-int av_timecode_adjust_ntsc_framenum2(int framenum, int fps);
-
-/**
- * Convert frame number to SMPTE 12M binary representation.
- *
- * @param tc timecode data correctly initialized
- * @param framenum frame number
- * @return the SMPTE binary representation
- *
- * @note Frame number adjustment is automatically done in case of drop timecode,
- * you do NOT have to call av_timecode_adjust_ntsc_framenum2().
- * @note The frame number is relative to tc->start.
- * @note Color frame (CF), binary group flags (BGF) and biphase mark polarity
- * correction (PC) bits are set to zero.
- */
-uint32_t av_timecode_get_smpte_from_framenum(const AVTimecode *tc, int framenum);
-
-/**
- * Load timecode string in buf.
- *
- * @param buf destination buffer, must be at least AV_TIMECODE_STR_SIZE long
- * @param tc timecode data correctly initialized
- * @param framenum frame number
- * @return the buf parameter
- *
- * @note Timecode representation can be a negative timecode and have more than
- * 24 hours, but will only be honored if the flags are correctly set.
- * @note The frame number is relative to tc->start.
- */
-char *av_timecode_make_string(const AVTimecode *tc, char *buf, int framenum);
-
-/**
- * Get the timecode string from the SMPTE timecode format.
- *
- * @param buf destination buffer, must be at least AV_TIMECODE_STR_SIZE long
- * @param tcsmpte the 32-bit SMPTE timecode
- * @param prevent_df prevent the use of a drop flag when it is known the DF bit
- * is arbitrary
- * @return the buf parameter
- */
-char *av_timecode_make_smpte_tc_string(char *buf, uint32_t tcsmpte, int prevent_df);
-
-/**
- * Get the timecode string from the 25-bit timecode format (MPEG GOP format).
- *
- * @param buf destination buffer, must be at least AV_TIMECODE_STR_SIZE long
- * @param tc25bit the 25-bits timecode
- * @return the buf parameter
- */
-char *av_timecode_make_mpeg_tc_string(char *buf, uint32_t tc25bit);
-
-/**
- * Init a timecode struct with the passed parameters.
- *
- * @param log_ctx a pointer to an arbitrary struct of which the first field
- * is a pointer to an AVClass struct (used for av_log)
- * @param tc pointer to an allocated AVTimecode
- * @param rate frame rate in rational form
- * @param flags miscellaneous flags such as drop frame, +24 hours, ...
- * (see AVTimecodeFlag)
- * @param frame_start the first frame number
- * @return 0 on success, AVERROR otherwise
- */
-int av_timecode_init(AVTimecode *tc, AVRational rate, int flags, int frame_start, void *log_ctx);
-
-/**
- * Parse timecode representation (hh:mm:ss[:;.]ff).
- *
- * @param log_ctx a pointer to an arbitrary struct of which the first field is a
- * pointer to an AVClass struct (used for av_log).
- * @param tc pointer to an allocated AVTimecode
- * @param rate frame rate in rational form
- * @param str timecode string which will determine the frame start
- * @return 0 on success, AVERROR otherwise
- */
-int av_timecode_init_from_string(AVTimecode *tc, AVRational rate, const char *str, void *log_ctx);
-
-/**
- * Check if the timecode feature is available for the given frame rate
- *
- * @return 0 if supported, <0 otherwise
- */
-int av_timecode_check_frame_rate(AVRational rate);
-
-#endif /* AVUTIL_TIMECODE_H */
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