ffmpeg问题解决:Unrecognized option 'preset'. Error splitting the argument list: Option not found 来到这里,十有八九是手动编译安装的ffmpeg,在跑视频流程序或命令时出现这个问题。 跟这个报错:ffmpeg: error while loading shared libraries: libx264.so.164: cannot open shared object file: No such file or...
The loop option is not working with gif image. When I'm working with png image the code good. But when I'm working with animated gif image the error is thrown Option loop not found. In my example I'm trying to create the video from input image with specific duration. ffmpeg -loop 1...
// 在 options/options.c 文件中定义 speed 选项 // 这个选项允许用户在命令行中设置播放速度 { .name = "speed", .type = OPT_FLOAT, .min = 0.01, .max = 100, .defval = (union m_option_value) { .f = 1 }, .offset = OPTDEF_FLOAT("speed"), }, // 在 player/playloop.c 文件中...
使用以下任何一个开关将允许FFmpeg链接到 相应的外部库。所有组件都依赖于该库 如果所有其他...
* is passed here, then the option may be set on a child of obj. * * @return 0 if the value has been set, or an AVERROR code in case of * error: * AVERROR_OPTION_NOT_FOUND if no matching option exists * AVERROR(ERANGE) if the value is out of range ...
这个编译过程可能会出现类似于libfdk_aac not found或者x264 not found的错误,那是没有安装相关的依赖,这里我们可以通过homebrew来安装这些依赖。 brew install fdk-aac brew install x264 当然,如果你的电脑环境配置不全的话,编译过程可能遇到的需要安装的错误会比较多,也没关系,出现什么样的依赖需要安装的,执行对...
(NULL,AV_LOG_DEBUG," matched as option '%s' (%s) with ""argument 0.\n",po->name,po->help);continue;}// 没有匹配的参数,返回错误av_log(NULL,AV_LOG_ERROR,"Unrecognized option '%s'.\n",opt);returnAVERROR_OPTION_NOT_FOUND;}// 循环结束后,临时参数及专属参数还存在值,没有存储到输入...
Multiple -c, -codec, -acodec, -vcodec, -scodec or -dcodec options specified for stream 2, only the last option '-c:v:1 png' will be used. ffmpeg会自动优化输入参数。有关ffmpeg默认的媒体流选择和映射关系比较复杂,建议阅读官方文档。
found when processing input #define AVERROR_MUXER_NOT_FOUND FFERRTAG(0xF8,'M','U','X') ///< Muxer not found #define AVERROR_OPTION_NOT_FOUND FFERRTAG(0xF8,'O','P','T') ///< Option not found #define AVERROR_PATCHWELCOME FFERRTAG( 'P','A','W','E') ///< Not yet ...
fprintf(stderr, "codec not found\n"); exit(1); } c = avcodec_alloc_context3(codec); /* put sample parameters */ c->bit_rate = 400000; /* resolution must be a multiple of two */ c->width = 800/*352*/; c->height = 500/*288*/; ...