\u539f\u672c\u53ea\u80fd\u8f38\u51fa\u6210 %4d.mp4 ==> 0000.mp4, 0001.mp4
\n\u8981\u6539\u6210\u53ef\u4ee5\u50cf\u884c\u8eca\u7d00\u9304\u5668\u822c\u7684\u6a94\u6848\u683c\u5f0f 201405020248.mp4<\/p>\n
\u589e\u52a0 %t \u7684\u53c3\u6578
\nffmpeg -i input -f segment -segment_time 60 -reset_timestamps 1 %t.mp4<\/p>\n
\u9019\u908a\u5c07 %t.mp4 \u5b9a\u7fa9\u6210 Webcam\u5e74\u65e5\u6708\/E\u5e74\u65e5\u6708\u6642\u5206\u79d2.mp4
\nstrftime(buf1, sizeof(buf1), “WebCam%Y%m%d\/E%Y%m%d%H%M%S”, localtime(&tv.tv_sec));<\/p>\n
\u4fee\u6539\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n
\u4fee\u6539 ffmpeg source \/ libavformat \/ utils.c \u6a94\u6848 \u5c0b\u627e av_get_frame_filename function \u539f\u672c\u53ea\u80fd\u8f38\u51fa\u6210 %4d.mp4 ==> 0000.mp4, 0001.mp4 \u8981\u6539\u6210\u53ef\u4ee5\u50cf\u884c\u8eca\u7d00\u9304\u5668\u822c\u7684\u6a94\u6848\u683c\u5f0f 201405020248.mp4 \u589e\u52a0 %t \u7684\u53c3\u6578 ffmpeg -i input -f segment -segment_time 60 -reset_timestamps 1 %t.mp4 \u9019\u908a\u5c07 %t.mp4 \u5b9a\u7fa9\u6210 Webcam\u5e74\u65e5\u6708\/E\u5e74\u65e5\u6708\u6642\u5206\u79d2.mp4 strftime(buf1, sizeof(buf1), “WebCam%Y%m%d\/E%Y%m%d%H%M%S”, localtime(&tv.tv_sec)); \u4fee\u6539\u65b9\u5f0f\u5982\u4e0b\uff1a \u4fee\u6539 ffmpeg source \/ libavformat \/ utils.c \u6a94\u6848 \u589e\u52a0\u5f15\u7528 #include <sys\/time.h> … Continue reading
\n\u589e\u52a0\u5f15\u7528 #include <sys\/time.h><\/span><\/p>\n
\n\u66ff\u63db\u6210\u4e0b\u9762\u9019\u4e00\u500b<\/p>\nint av_get_frame_filename(char *buf, int buf_size, const char *path, int number)\n{\n const char *p;\n char *q, buf1[50], c;\n int nd, len, percentd_found, percentt_found;\n struct timeval tv;\n\n q = buf;\n p = path;\n percentd_found = 0;\n percentt_found = 0;\n for (;;) {\n c = *p++;\n if (c == '\u0000')\n break;\n if (c == '%') {\n do {\n nd = 0;\n while (av_isdigit(*p))\n nd = nd * 10 + *p++ - '0';\n c = *p++;\n } while (av_isdigit(c));\n\n switch (c) {\n case '%':\n goto addchar;\n case 'd':\n if (percentd_found)\n goto fail;\n percentd_found = 1;\n snprintf(buf1, sizeof(buf1), \"%0*d\", nd, number);\n len = strlen(buf1);\n if ((q - buf + len) > buf_size - 1)\n goto fail;\n memcpy(q, buf1, len);\n q += len;\n break;\n case 't':\n if (percentt_found)\n goto fail;\n percentt_found = 1;\n\n gettimeofday(&tv, NULL);\n \/\/strftime(buf1, sizeof(buf1), \"%Y-%m-%d_%H-%M-%S\", localtime(&tv.tv_sec));\n \/\/\n strftime(buf1, sizeof(buf1), \"WebCam%Y%m%d\/E%Y%m%d%H%M%S\", localtime(&tv.tv_sec));\n len = strlen(buf1);\n if ((q - buf + len) > buf_size - 1)\n goto fail;\n memcpy(q, buf1, len);\n q += len;\n break;\n default:\n goto fail;\n }\n } else {\n addchar:\n if ((q - buf) < buf_size - 1)\n *q++ = c;\n }\n }\n if (!percentd_found && !percentt_found)\n goto fail;\n *q = '\u0000';\n return 0;\nfail:\n *q = '\u0000';\n return -1;\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"