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🎥 Command line media player
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091/* * This file is part of mpv. * * mpv 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. * * mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>. */
#ifndef MPLAYER_MP_MSG_H#define MPLAYER_MP_MSG_H
#include <stdarg.h>#include <stdbool.h>#include <stdlib.h>#include <stdint.h>
#include "osdep/compiler.h"
struct mp_log;
// A mp_log instance that never outputs anything.extern struct mp_log *const mp_null_log;
// Verbosity levels.enum { MSGL_FATAL, // only errors (difference to MSGL_ERR isn't too clear) MSGL_ERR, // only errors MSGL_WARN, // only warnings MSGL_INFO, // what you normally see on the terminal MSGL_STATUS, // exclusively for the playback status line (-quiet disables) MSGL_V, // -v | slightly more information than default MSGL_DEBUG, // -v -v | full debug information; this and numerically below // should not produce "per frame" output MSGL_TRACE, // -v -v -v | anything that might flood the terminal MSGL_STATS, // dumping fine grained stats (--dump-stats)
MSGL_MAX = MSGL_STATS,};
struct mp_log *mp_log_new(void *talloc_ctx, struct mp_log *parent, const char *name);
void mp_msg(struct mp_log *log, int lev, const char *format, ...) PRINTF_ATTRIBUTE(3, 4);void mp_msg_va(struct mp_log *log, int lev, const char *format, va_list va);
int mp_msg_level(struct mp_log *log);
static inline bool mp_msg_test(struct mp_log *log, int lev){ return lev <= mp_msg_level(log);}
// Convenience macros.#define mp_fatal(log, ...) mp_msg(log, MSGL_FATAL, __VA_ARGS__)#define mp_err(log, ...) mp_msg(log, MSGL_ERR, __VA_ARGS__)#define mp_warn(log, ...) mp_msg(log, MSGL_WARN, __VA_ARGS__)#define mp_info(log, ...) mp_msg(log, MSGL_INFO, __VA_ARGS__)#define mp_verbose(log, ...) mp_msg(log, MSGL_V, __VA_ARGS__)#define mp_dbg(log, ...) mp_msg(log, MSGL_DEBUG, __VA_ARGS__)#define mp_trace(log, ...) mp_msg(log, MSGL_TRACE, __VA_ARGS__)
// Convenience macros, typically called with a pointer to a context struct// as first argument, which has a "struct mp_log *log;" member.
#define MP_MSG(obj, lev, ...) mp_msg((obj)->log, lev, __VA_ARGS__)
#define MP_FATAL(obj, ...) MP_MSG(obj, MSGL_FATAL, __VA_ARGS__)#define MP_ERR(obj, ...) MP_MSG(obj, MSGL_ERR, __VA_ARGS__)#define MP_WARN(obj, ...) MP_MSG(obj, MSGL_WARN, __VA_ARGS__)#define MP_INFO(obj, ...) MP_MSG(obj, MSGL_INFO, __VA_ARGS__)#define MP_VERBOSE(obj, ...) MP_MSG(obj, MSGL_V, __VA_ARGS__)#define MP_DBG(obj, ...) MP_MSG(obj, MSGL_DEBUG, __VA_ARGS__)#define MP_TRACE(obj, ...) MP_MSG(obj, MSGL_TRACE, __VA_ARGS__)
// This is a bit special. See TOOLS/stats-conv.py what rules text passed// to these functions should follow. Also see --dump-stats.#define mp_stats(obj, ...) mp_msg(obj, MSGL_STATS, __VA_ARGS__)#define MP_STATS(obj, ...) MP_MSG(obj, MSGL_STATS, __VA_ARGS__)
#endif /* MPLAYER_MP_MSG_H */