| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * This file is part of FFmpeg. | ||
| 3 | * | ||
| 4 | * FFmpeg is free software; you can redistribute it and/or | ||
| 5 | * modify it under the terms of the GNU Lesser General Public | ||
| 6 | * License as published by the Free Software Foundation; either | ||
| 7 | * version 2.1 of the License, or (at your option) any later version. | ||
| 8 | * | ||
| 9 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 12 | * Lesser General Public License for more details. | ||
| 13 | * | ||
| 14 | * You should have received a copy of the GNU Lesser General Public | ||
| 15 | * License along with FFmpeg; if not, write to the Free Software | ||
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 17 | */ | ||
| 18 | |||
| 19 | #include "config.h" | ||
| 20 | #include "avutil.h" | ||
| 21 | #include "avassert.h" | ||
| 22 | |||
| 23 | /** | ||
| 24 | * @file | ||
| 25 | * various utility functions | ||
| 26 | */ | ||
| 27 | |||
| 28 | 859397 | const char *av_get_media_type_string(enum AVMediaType media_type) | |
| 29 | { | ||
| 30 |
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859397 | switch (media_type) { |
| 31 | 309700 | case AVMEDIA_TYPE_VIDEO: return "video"; | |
| 32 | 546229 | case AVMEDIA_TYPE_AUDIO: return "audio"; | |
| 33 | 193 | case AVMEDIA_TYPE_DATA: return "data"; | |
| 34 | 3261 | case AVMEDIA_TYPE_SUBTITLE: return "subtitle"; | |
| 35 | 14 | case AVMEDIA_TYPE_ATTACHMENT: return "attachment"; | |
| 36 | ✗ | default: return NULL; | |
| 37 | } | ||
| 38 | } | ||
| 39 | |||
| 40 | 2010 | char av_get_picture_type_char(enum AVPictureType pict_type) | |
| 41 | { | ||
| 42 |
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2010 | switch (pict_type) { |
| 43 | 253 | case AV_PICTURE_TYPE_I: return 'I'; | |
| 44 | 1389 | case AV_PICTURE_TYPE_P: return 'P'; | |
| 45 | 105 | case AV_PICTURE_TYPE_B: return 'B'; | |
| 46 | ✗ | case AV_PICTURE_TYPE_S: return 'S'; | |
| 47 | ✗ | case AV_PICTURE_TYPE_SI: return 'i'; | |
| 48 | ✗ | case AV_PICTURE_TYPE_SP: return 'p'; | |
| 49 | ✗ | case AV_PICTURE_TYPE_BI: return 'b'; | |
| 50 | 263 | default: return '?'; | |
| 51 | } | ||
| 52 | } | ||
| 53 | |||
| 54 | ✗ | unsigned av_int_list_length_for_size(unsigned elsize, | |
| 55 | const void *list, uint64_t term) | ||
| 56 | { | ||
| 57 | unsigned i; | ||
| 58 | |||
| 59 | ✗ | if (!list) | |
| 60 | ✗ | return 0; | |
| 61 | #define LIST_LENGTH(type) \ | ||
| 62 | { type t = term, *l = (type *)list; for (i = 0; l[i] != t; i++); } | ||
| 63 | ✗ | switch (elsize) { | |
| 64 | ✗ | case 1: LIST_LENGTH(uint8_t); break; | |
| 65 | ✗ | case 2: LIST_LENGTH(uint16_t); break; | |
| 66 | ✗ | case 4: LIST_LENGTH(uint32_t); break; | |
| 67 | ✗ | case 8: LIST_LENGTH(uint64_t); break; | |
| 68 | ✗ | default: av_assert0(!"valid element size"); | |
| 69 | } | ||
| 70 | ✗ | return i; | |
| 71 | } | ||
| 72 | |||
| 73 | 53951 | char *av_fourcc_make_string(char *buf, uint32_t fourcc) | |
| 74 | { | ||
| 75 | int i; | ||
| 76 | 53951 | char *orig_buf = buf; | |
| 77 | 53951 | size_t buf_size = AV_FOURCC_MAX_STRING_SIZE; | |
| 78 | |||
| 79 |
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269755 | for (i = 0; i < 4; i++) { |
| 80 | 215804 | const int c = fourcc & 0xff; | |
| 81 |
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215804 | const int print_chr = (c >= '0' && c <= '9') || |
| 82 |
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205309 | (c >= 'a' && c <= 'z') || |
| 83 |
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436876 | (c >= 'A' && c <= 'Z') || |
| 84 |
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5268 | (c && strchr(". -_", c)); |
| 85 |
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215804 | const int len = snprintf(buf, buf_size, print_chr ? "%c" : "[%d]", c); |
| 86 |
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215804 | if (len < 0) |
| 87 | ✗ | break; | |
| 88 | 215804 | buf += len; | |
| 89 |
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215804 | buf_size = buf_size > len ? buf_size - len : 0; |
| 90 | 215804 | fourcc >>= 8; | |
| 91 | } | ||
| 92 | |||
| 93 | 53951 | return orig_buf; | |
| 94 | } | ||
| 95 | |||
| 96 | ✗ | AVRational av_get_time_base_q(void) | |
| 97 | { | ||
| 98 | ✗ | return (AVRational){1, AV_TIME_BASE}; | |
| 99 | } | ||
| 100 | |||
| 101 | ✗ | void av_assert0_fpu(void) { | |
| 102 | #if HAVE_MMX_INLINE | ||
| 103 | uint16_t state[14]; | ||
| 104 | ✗ | __asm__ volatile ( | |
| 105 | "fstenv %0 \n\t" | ||
| 106 | : "+m" (state) | ||
| 107 | : | ||
| 108 | : "memory" | ||
| 109 | ); | ||
| 110 | ✗ | av_assert0((state[4] & 3) == 3); | |
| 111 | #endif | ||
| 112 | ✗ | } | |
| 113 |