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🎥 Command line media player
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134/* * 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_MPCOMMON_H#define MPLAYER_MPCOMMON_H
#include <assert.h>#include <stddef.h>#include <stdlib.h>#include <stdbool.h>#include <stdint.h>
#include "osdep/compiler.h"#include "mpv_talloc.h"
// double should be able to represent this exactly#define MP_NOPTS_VALUE (-0x1p+63)
#define MP_CONCAT_(a, b) a ## b#define MP_CONCAT(a, b) MP_CONCAT_(a, b)
#define MPMAX(a, b) ((a) > (b) ? (a) : (b))#define MPMIN(a, b) ((a) > (b) ? (b) : (a))#define MPCLAMP(a, min, max) (((a) < (min)) ? (min) : (((a) > (max)) ? (max) : (a)))#define MPSWAP(type, a, b) \ do { type SWAP_tmp = b; b = a; a = SWAP_tmp; } while (0)#define MP_ARRAY_SIZE(s) (sizeof(s) / sizeof((s)[0]))
// align must be a power of two (align >= 1), x >= 0#define MP_ALIGN_UP(x, align) (((x) + (align) - 1) & ~((align) - 1))#define MP_ALIGN_DOWN(x, align) ((x) & ~((align) - 1))#define MP_IS_ALIGNED(x, align) (!((x) & ((align) - 1)))#define MP_IS_POWER_OF_2(x) ((x) > 0 && !((x) & ((x) - 1)))
// Return "a", or if that is NOPTS, return "def".#define MP_PTS_OR_DEF(a, def) ((a) == MP_NOPTS_VALUE ? (def) : (a))// If one of the values is NOPTS, always pick the other one.#define MP_PTS_MIN(a, b) MPMIN(MP_PTS_OR_DEF(a, b), MP_PTS_OR_DEF(b, a))#define MP_PTS_MAX(a, b) MPMAX(MP_PTS_OR_DEF(a, b), MP_PTS_OR_DEF(b, a))// Return a+b, unless a is NOPTS. b must not be NOPTS.#define MP_ADD_PTS(a, b) ((a) == MP_NOPTS_VALUE ? (a) : ((a) + (b)))
#define CONTROL_OK 1#define CONTROL_TRUE 1#define CONTROL_FALSE 0#define CONTROL_UNKNOWN -1#define CONTROL_ERROR -2#define CONTROL_NA -3
enum stream_type { STREAM_VIDEO, STREAM_AUDIO, STREAM_SUB, STREAM_TYPE_COUNT,};
extern const char mpv_version[];extern const char mpv_builddate[];extern const char mpv_copyright[];
char *mp_format_time(double time, bool fractions);char *mp_format_time_fmt(const char *fmt, double time);
struct mp_rect { int x0, y0; int x1, y1;};
#define mp_rect_w(r) ((r).x1 - (r).x0)#define mp_rect_h(r) ((r).y1 - (r).y0)
void mp_rect_union(struct mp_rect *rc, const struct mp_rect *src);bool mp_rect_intersection(struct mp_rect *rc, const struct mp_rect *rc2);bool mp_rect_contains(struct mp_rect *rc, int x, int y);bool mp_rect_equals(struct mp_rect *rc1, struct mp_rect *rc2);
unsigned int mp_log2(uint32_t v);uint32_t mp_round_next_power_of_2(uint32_t v);
int mp_snprintf_cat(char *str, size_t size, const char *format, ...) PRINTF_ATTRIBUTE(3, 4);
struct bstr;
void mp_append_utf8_bstr(void *talloc_ctx, struct bstr *buf, uint32_t codepoint);
bool mp_append_escaped_string_noalloc(void *talloc_ctx, struct bstr *dst, struct bstr *src);bool mp_append_escaped_string(void *talloc_ctx, struct bstr *dst, struct bstr *src);
char *mp_strerror_buf(char *buf, size_t buf_size, int errnum);#define mp_strerror(e) mp_strerror_buf((char[80]){0}, 80, e)
char *mp_tag_str_buf(char *buf, size_t buf_size, uint32_t tag);#define mp_tag_str(t) mp_tag_str_buf((char[22]){0}, 22, t)
// Return a printf(format, ...) formatted string of the given SIZE. SIZE must// be a compile time constant. The result is allocated on the stack and valid// only within the current block scope.#define mp_tprintf(SIZE, format, ...) \ mp_tprintf_buf((char[SIZE]){0}, (SIZE), (format), __VA_ARGS__)char *mp_tprintf_buf(char *buf, size_t buf_size, const char *format, ...) PRINTF_ATTRIBUTE(3, 4);
char **mp_dup_str_array(void *tctx, char **s);
// We generally do not handle allocation failure of small malloc()s. This would// create a large number of rarely tested code paths, which would probably// regress and cause security issues. We prefer to fail fast.// This macro generally behaves like an assert(), except it will make sure to// kill the process even with NDEBUG.#define MP_HANDLE_OOM(x) do { \ assert(x); \ if (!(x)) \ abort(); \ } while (0)
#endif /* MPLAYER_MPCOMMON_H */