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API | 操作名 | 操作描述 |
查询文件信息 | 用于查询媒体文件的信息 |
media bucket unbinded, bucket's host is unavailable。详情请参见 开通媒体处理。cos_status_t *ci_get_media_info(const cos_request_options_t *options,const cos_string_t *bucket,const cos_string_t *object,cos_table_t *headers,cos_table_t **resp_headers,ci_media_info_result_t **media_result);
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 |
headers | COS 请求附加头域 | Struct |
resp_headers | 返回 HTTP 响应消息的头域 | Struct |
media_result | 返回 媒体文件信息 | Struct |
format | 格式信息 | Struct |
num_stream | Stream（包含 Video、Audio、Subtitle）的数量 | Int |
num_program | 节目的数量 | Int |
format_name | 容器格式名字 | String |
format_long_name | 容器格式的详细名字 | String |
start_time | 起始时间，单位为秒 | Float |
duration | 时长，单位为秒 | Float |
bit_rate | 比特率，单位为 kbps | Int |
size | 大小，单位为 Byte | Int |
stream | 流信息 | Struct |
video | 视频信息 | Struct |
audio | 音频信息 | Struct |
subtitle | 字幕信息 | Struct |
参数名称 | 参数描述 | 类型 |
index | 该流的编号 | Int |
codec_name | 编解码格式名字 | String |
codec_long_name | 编解码格式的详细名字 | String |
codec_time_base | 编码时基 | String |
codec_tag_string | 编码标签名 | String |
codec_tag | 编码标签 | String |
profile | 视频编码档位 | String |
height | 视频高，单位 px | Int |
width | 视频宽，单位 px | Int |
has_b_frame | 是否有B帧。1表示有，0表示无 | Int |
ref_frames | 视频编码的参考帧个数 | Int |
sar | 采样宽高比 | String |
dar | 显示宽高比 | String |
pix_format | 像素格式 | String |
field_order | 场的顺序 | String |
level | 视频编码等级 | Int |
fps | 视频帧率 | Int |
avg_fps | 平均帧率 | String |
timebase | 时基 | String |
start_time | 视频开始时间，单位为秒 | Float |
duration | 视频时长，单位为秒 | Float |
bit_rate | 比特率，单位为 kbps | Float |
num_frames | 总帧数 | Int |
language | 语言 | String |
参数名称 | 参数描述 | 类型 |
index | 该流的编号 | Int |
codec_name | 编解码格式名字 | String |
codec_long_name | 编解码格式的详细名字 | String |
codec_time_base | 编码时基 | String |
codec_tag_string | 编码标签名 | String |
codec_tag | 编码标签 | String |
sample_fmt | 采样格式 | String |
sample_rate | 采样率 | Int |
channel | 通道数量 | Int |
channel_layout | 通道格式 | String |
timebase | 时基 | String |
start_time | 音频开始时间，单位为秒 | Float |
duration | 音频时长，单位为秒 | Float |
bit_rate | 比特率，单位为 kbps | Float |
language | 语言 | String |
参数名称 | 参数描述 | 类型 |
index | 该流的编号 | Int |
language | 语言，und 表示无查询结果 | String |
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);}static void log_media_info_result(ci_media_info_result_t *result){// formatcos_warn_log("format.num_stream: %d", result->format.num_stream);cos_warn_log("format.num_program: %d", result->format.num_program);cos_warn_log("format.format_name: %s", result->format.format_name.data);cos_warn_log("format.format_long_name: %s", result->format.format_long_name.data);cos_warn_log("format.start_time: %f", result->format.start_time);cos_warn_log("format.duration: %f", result->format.duration);cos_warn_log("format.bit_rate: %d", result->format.bit_rate);cos_warn_log("format.size: %d", result->format.size);// stream.videocos_warn_log("stream.video.index: %d", result->stream.video.index);cos_warn_log("stream.video.codec_name: %s", result->stream.video.codec_name.data);cos_warn_log("stream.video.codec_long_name: %s", result->stream.video.codec_long_name.data);cos_warn_log("stream.video.codec_time_base: %s", result->stream.video.codec_time_base.data);cos_warn_log("stream.video.codec_tag_string: %s", result->stream.video.codec_tag_string.data);cos_warn_log("stream.video.codec_tag: %s", result->stream.video.codec_tag.data);cos_warn_log("stream.video.profile: %s", result->stream.video.profile.data);cos_warn_log("stream.video.height: %d", result->stream.video.height);cos_warn_log("stream.video.width: %d", result->stream.video.width);cos_warn_log("stream.video.has_b_frame: %d", result->stream.video.has_b_frame);cos_warn_log("stream.video.ref_frames: %d", result->stream.video.ref_frames);cos_warn_log("stream.video.sar: %s", result->stream.video.sar.data);cos_warn_log("stream.video.dar: %s", result->stream.video.dar.data);cos_warn_log("stream.video.pix_format: %s", result->stream.video.pix_format.data);cos_warn_log("stream.video.field_order: %s", result->stream.video.field_order.data);cos_warn_log("stream.video.level: %d", result->stream.video.level);cos_warn_log("stream.video.fps: %d", result->stream.video.fps);cos_warn_log("stream.video.avg_fps: %s", result->stream.video.avg_fps.data);cos_warn_log("stream.video.timebase: %s", result->stream.video.timebase.data);cos_warn_log("stream.video.start_time: %f", result->stream.video.start_time);cos_warn_log("stream.video.duration: %f", result->stream.video.duration);cos_warn_log("stream.video.bit_rate: %f", result->stream.video.bit_rate);cos_warn_log("stream.video.num_frames: %d", result->stream.video.num_frames);cos_warn_log("stream.video.language: %s", result->stream.video.language.data);// stream.audiocos_warn_log("stream.audio.index: %d", result->stream.audio.index);cos_warn_log("stream.audio.codec_name: %s", result->stream.audio.codec_name.data);cos_warn_log("stream.audio.codec_long_name: %s", result->stream.audio.codec_long_name.data);cos_warn_log("stream.audio.codec_time_base: %s", result->stream.audio.codec_time_base.data);cos_warn_log("stream.audio.codec_tag_string: %s", result->stream.audio.codec_tag_string.data);cos_warn_log("stream.audio.codec_tag: %s", result->stream.audio.codec_tag.data);cos_warn_log("stream.audio.sample_fmt: %s", result->stream.audio.sample_fmt.data);cos_warn_log("stream.audio.sample_rate: %d", result->stream.audio.sample_rate);cos_warn_log("stream.audio.channel: %d", result->stream.audio.channel);cos_warn_log("stream.audio.channel_layout: %s", result->stream.audio.channel_layout.data);cos_warn_log("stream.audio.timebase: %s", result->stream.audio.timebase.data);cos_warn_log("stream.audio.start_time: %f", result->stream.audio.start_time);cos_warn_log("stream.audio.duration: %f", result->stream.audio.duration);cos_warn_log("stream.audio.bit_rate: %f", result->stream.audio.bit_rate);cos_warn_log("stream.audio.language: %s", result->stream.audio.language.data);// stream.subtitlecos_warn_log("stream.subtitle.index: %d", result->stream.subtitle.index);cos_warn_log("stream.subtitle.language: %s", result->stream.subtitle.language.data);}void test_ci_media_process_media_info(){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;ci_media_info_result_t *media_info;cos_string_t object;// 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/436/46915s = ci_get_media_info(options, &bucket, &object, NULL, &resp_headers, &media_info);log_status(s);if (s->code == 200) {log_media_info_result(media_info);}// 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_media_info();cos_http_io_deinitialize();return 0;}
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