API | 操作名 | 操作描述 |
查询截图 | 用于查询媒体文件在某个时间的截图 |
media bucket unbinded, bucket's host is unavailable
。详情请参见 开通媒体处理。cos_status_t *ci_get_snapshot_to_buffer(const cos_request_options_t *options,const cos_string_t *bucket,const cos_string_t *object,const ci_get_snapshot_request_t *snapshot_request,cos_table_t *headers,cos_list_t *buffer,cos_table_t **resp_headers);
参数名称 | 参数描述 | 类型 |
options | COS 请求选项 | Struct |
bucket | 存储桶名称,存储桶的命名格式为 BucketName-APPID,此处填写的存储桶名称必须为此格式 | String |
object | Object 名称 | String |
snapshot_request | 获取媒体截图的请求参数 | Struct |
time | 截图的时间点,单位为秒 | Float |
width | 截图的宽。默认为0 | Int |
height | 截图的高。默认为0 width 和 height 都为0时表示使用视频的宽高,如果单个为0,则以另外一个值按视频宽高比例自动适应 | Int |
format | 截图的格式,支持 jpg 和 png,默认 jpg | String |
rotate | 图片旋转方式 auto:按视频旋转信息进行自动旋转 off:不旋转 默认值为 auto | String |
mode | 截帧方式 keyframe:截取指定时间点之前的最近的一个关键帧 exactframe:截取指定时间点的帧 默认值为 exactframe | String |
headers | COS 请求附加头域 | Struct |
buffer | 返回 截图图片的内容 | Struct |
resp_headers | 返回 HTTP 响应消息的头域 | Struct |
返回结果 | 描述 | 类型 |
code | 错误码 | Int |
error_code | 错误码内容 | String |
error_msg | 错误码描述 | String |
req_id | 请求消息 ID | String |
#include "cos_http_io.h"#include "cos_api.h"#include "cos_log.h"// endpoint 是 COS 访问域名信息,详情请参见 https://www.tencentcloud.com/document/product/436/6224 文档static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";// 开发者拥有的项目身份ID/密钥,可在 https://console.tencentcloud.com/cam/capi 页面获取static char *TEST_ACCESS_KEY_ID; //your secret_idstatic char *TEST_ACCESS_KEY_SECRET; //your secret_key// 开发者访问 COS 服务时拥有的用户维度唯一资源标识,用以标识资源,可在 https://console.tencentcloud.com/cam/capi 页面获取static char TEST_APPID[] = "<APPID>"; //your appid//the cos bucket name, syntax: [bucket]-[appid], for example: mybucket-1253666666,可在 https://console.tencentcloud.com/cos5/bucket 查看static char TEST_BUCKET_NAME[] = "<bucketname-appid>";void log_status(cos_status_t *s){cos_warn_log("status->code: %d", s->code);if (s->error_code) cos_warn_log("status->error_code: %s", s->error_code);if (s->error_msg) cos_warn_log("status->error_msg: %s", s->error_msg);if (s->req_id) cos_warn_log("status->req_id: %s", s->req_id);}void test_ci_media_process_snapshot(){cos_pool_t *p = NULL;int is_cname = 0;cos_status_t *s = NULL;cos_request_options_t *options = NULL;cos_string_t bucket;cos_table_t *resp_headers;cos_list_t download_buffer;cos_string_t object;ci_get_snapshot_request_t *snapshot_request;// 基本配置cos_pool_create(&p, NULL);options = cos_request_options_create(p);options->config = cos_config_create(options->pool);cos_str_set(&options->config->endpoint, TEST_COS_ENDPOINT);cos_str_set(&options->config->access_key_id, TEST_ACCESS_KEY_ID);cos_str_set(&options->config->access_key_secret, TEST_ACCESS_KEY_SECRET);cos_str_set(&options->config->appid, TEST_APPID);options->config->is_cname = is_cname;options->ctl = cos_http_controller_create(options->pool, 0);cos_str_set(&bucket, TEST_BUCKET_NAME);cos_str_set(&object, "test.mp4");// 替换为您的配置信息,可参见文档 https://www.tencentcloud.com/document/product/436/46912snapshot_request = ci_snapshot_request_create(p);snapshot_request->time = 7.5;snapshot_request->width = 0;snapshot_request->height = 0;cos_str_set(&snapshot_request->format, "jpg");cos_str_set(&snapshot_request->rotate, "auto");cos_str_set(&snapshot_request->mode, "exactframe");cos_list_init(&download_buffer);s = ci_get_snapshot_to_buffer(options, &bucket, &object, snapshot_request, NULL, &download_buffer, &resp_headers);log_status(s);// 销毁内存池cos_pool_destroy(p);}int main(int argc, char *argv[]){// 通过环境变量获取 SECRETID 和 SECRETKEYTEST_ACCESS_KEY_ID = getenv("COS_SECRETID");TEST_ACCESS_KEY_SECRET = getenv("COS_SECRETKEY");if (cos_http_io_initialize(NULL, 0) != COSE_OK) {exit(1);}//set log level, default COS_LOG_WARNcos_log_set_level(COS_LOG_WARN);//set log output, default stderrcos_log_set_output(NULL);test_ci_media_process_snapshot();cos_http_io_deinitialize();return 0;}
cos_status_t *ci_get_snapshot_to_file(const cos_request_options_t *options,const cos_string_t *bucket,const cos_string_t *object,const ci_get_snapshot_request_t *snapshot_request,cos_table_t *headers,cos_string_t *filename,cos_table_t **resp_headers);
参数名称 | 参数描述 | 类型 |
options | COS 请求选项 | Struct |
bucket | 存储桶名称,存储桶的命名格式为 BucketName-APPID,此处填写的存储桶名称必须为此格式 | String |
object | Object 名称 | String |
snapshot_request | 获取媒体截图的请求参数 | Struct |
time | 截图的时间点,单位为秒 | Float |
width | 截图的宽。默认为0 | Int |
height | 截图的高。默认为0 width 和 height 都为0时表示使用视频的宽高,如果单个为0,则以另外一个值按视频宽高比例自动适应 | Int |
format | 截图的格式,支持 jpg 和 png,默认 jpg | String |
rotate | 图片旋转方式 auto:按视频旋转信息进行自动旋转 off:不旋转 默认值为 auto | String |
mode | 截帧方式 keyframe:截取指定时间点之前的最近的一个关键帧 exactframe:截取指定时间点的帧 默认值为 exactframe | String |
headers | COS 请求附加头域 | Struct |
filename | 存放截图信息的文件名 | String |
resp_headers | 返回 HTTP 响应消息的头域 | Struct |
返回结果 | 描述 | 类型 |
code | 错误码 | Int |
error_code | 错误码内容 | String |
error_msg | 错误码描述 | String |
req_id | 请求消息 ID | String |
#include "cos_http_io.h"#include "cos_api.h"#include "cos_log.h"#include <sys/stat.h>// endpoint 是 COS 访问域名信息,详情请参见 https://www.tencentcloud.com/document/product/436/6224 文档static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";// 开发者拥有的项目身份ID/密钥,可在 https://console.tencentcloud.com/cam/capi 页面获取static char *TEST_ACCESS_KEY_ID; //your secret_idstatic char *TEST_ACCESS_KEY_SECRET; //your secret_key// 开发者访问 COS 服务时拥有的用户维度唯一资源标识,用以标识资源,可在 https://console.tencentcloud.com/cam/capi 页面获取static char TEST_APPID[] = "<APPID>"; //your appid//the cos bucket name, syntax: [bucket]-[appid], for example: mybucket-1253666666,可在 https://console.tencentcloud.com/cos5/bucket 查看static char TEST_BUCKET_NAME[] = "<bucketname-appid>";void log_status(cos_status_t *s){cos_warn_log("status->code: %d", s->code);if (s->error_code) cos_warn_log("status->error_code: %s", s->error_code);if (s->error_msg) cos_warn_log("status->error_msg: %s", s->error_msg);if (s->req_id) cos_warn_log("status->req_id: %s", s->req_id);}void test_ci_media_process_snapshot(){cos_pool_t *p = NULL;int is_cname = 0;cos_status_t *s = NULL;cos_request_options_t *options = NULL;cos_string_t bucket;cos_table_t *resp_headers;cos_string_t object;ci_get_snapshot_request_t *snapshot_request;cos_string_t pic_file = cos_string("snapshot.jpg");// 基本配置cos_pool_create(&p, NULL);options = cos_request_options_create(p);options->config = cos_config_create(options->pool);cos_str_set(&options->config->endpoint, TEST_COS_ENDPOINT);cos_str_set(&options->config->access_key_id, TEST_ACCESS_KEY_ID);cos_str_set(&options->config->access_key_secret, TEST_ACCESS_KEY_SECRET);cos_str_set(&options->config->appid, TEST_APPID);options->config->is_cname = is_cname;options->ctl = cos_http_controller_create(options->pool, 0);cos_str_set(&bucket, TEST_BUCKET_NAME);cos_str_set(&object, "test.mp4");// 替换为您的配置信息,可参见文档 https://www.tencentcloud.com/document/product/436/46912snapshot_request = ci_snapshot_request_create(p);snapshot_request->time = 7.5;snapshot_request->width = 0;snapshot_request->height = 0;cos_str_set(&snapshot_request->format, "jpg");cos_str_set(&snapshot_request->rotate, "auto");cos_str_set(&snapshot_request->mode, "exactframe");s = ci_get_snapshot_to_file(options, &bucket, &object, snapshot_request, NULL, &pic_file, &resp_headers);log_status(s);// 销毁内存池cos_pool_destroy(p);}int main(int argc, char *argv[]){// 通过环境变量获取 SECRETID 和 SECRETKEYTEST_ACCESS_KEY_ID = getenv("COS_SECRETID");TEST_ACCESS_KEY_SECRET = getenv("COS_SECRETKEY");if (cos_http_io_initialize(NULL, 0) != COSE_OK) {exit(1);}//set log level, default COS_LOG_WARNcos_log_set_level(COS_LOG_WARN);//set log output, default stderrcos_log_set_output(NULL);test_ci_media_process_snapshot();cos_http_io_deinitialize();return 0;}
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