騰訊雲,雲點播,視訊合成

免費處理視訊素材的網站:https://www.piaoquantv.com/clip/

騰訊雲,雲點播,視訊合成

騰訊雲代碼都很詳細，可以在調試代碼都有生成

https://cloud.tencent.com/document/product/266/35286

騰訊雲,雲點播,視訊合成

代碼封裝

引入檔案

use TencentCloud\Common\Credential;
use TencentCloud\Common\Profile\ClientProfile;
use TencentCloud\Common\Profile\HttpProfile;
use TencentCloud\Common\Exception\TencentCloudSDKException;
use TencentCloud\Vod\V20180717\VodClient;

常量

private $SECRET_ID          = ''; //密鑰的 secretId
    private $SECRET_KEY         = ''; //密鑰的 secretKey
    private $INTRODUCE_PREFIX   = 'TencentCloud\Vod\V20180717\Models\\';//引入騰訊雲檔案字首
    private $HOST               = ['vod.tencentcloudapi.com'];//騰訊雲請求 域名目前隻需要 vod.tencentcloudapi.com 有需要往裡面加
    private $METHOD_NAME        = ['ComposeMedia','DescribeMediaInfos','DescribeTaskDetail','DeleteMedia','ManageTask','ProcessMedia'];//接口方法名

封裝方法

/**
     * 騰訊雲相關接口通路
     * @param array $param 請求參數
     * @param int $type 請求接口類型 1視訊合成 2擷取媒體詳情 3任務詳情 4删除視訊 5終止任務 6視訊轉碼處理
     * @param int $host 請求域名選擇值
     * @throws
     * @return array
     */
    function Interface(array $param, int $type, int $host=0){
        try {
            $cred = new Credential($this->SECRET_ID, $this->SECRET_KEY);
            $httpProfile = new HttpProfile();
            $httpProfile->setEndpoint($this->HOST[$host]);
            $clientProfile = new ClientProfile();
            $clientProfile->setHttpProfile($httpProfile);
            $client = new VodClient($cred, "", $clientProfile);
            $method_name = $this->METHOD_NAME[$type-1];//擷取方法名
            $class = $this->INTRODUCE_PREFIX.$method_name.'Request';//擷取類路徑
            $req = new $class();
            $req->fromJsonString(json_encode($param));
            $resp = $client->$method_name($req);
            return json_decode($resp->toJsonString(),true);
        }
        catch(TencentCloudSDKException $e) {
            return ['code'=>400,'msg'=>$e];
        }
    }

參數在調試中生成的代碼有根據你需要的參數會生成對應的代碼

完整的代碼：(我這個是處理上傳到抖音的視訊的)

<?php
namespace app\service;
use app\BaseController;
use TencentCloud\Common\Credential;
use TencentCloud\Common\Profile\ClientProfile;
use TencentCloud\Common\Profile\HttpProfile;
use TencentCloud\Common\Exception\TencentCloudSDKException;
use TencentCloud\Vod\V20180717\VodClient;
use think\facade\Db;

class TencentService extends BaseController{
    private $SECRET_ID          = ''; //密鑰的 secretId
    private $SECRET_KEY         = ''; //密鑰的 secretKey
    private $INTRODUCE_PREFIX   = 'TencentCloud\Vod\V20180717\Models\\';//引入騰訊雲檔案字首
    private $HOST               = ['vod.tencentcloudapi.com'];//騰訊雲請求 域名目前隻需要 vod.tencentcloudapi.com 有需要往裡面加
    private $METHOD_NAME        = ['ComposeMedia','DescribeMediaInfos','DescribeTaskDetail','DeleteMedia','ManageTask','ProcessMedia'];//接口方法名
    private $CLASS_ID           = [815251,814659,814710,824533];//分類id 分别是 一級分類id：音頻、商戶視訊  二級分類id：商戶宣傳視訊、商戶合成視訊(根據自己的需要建立 放到這裡就可以)
    private $VIDEO_STENCIL_ID   = [880999,885999,885998,885997,885996,885995];//視訊模版id(碼率按順序是 1000-6000)  需要讓騰訊雲技術将模版id改成 ABR模式(預設是CRF模式 檔案大小隻能往下壓縮不能往上加  ABR模式可以往上加 極限是原視訊的兩倍)(根據自己的需要建立 放到這裡就可以)
    private $AUDIO_BASIS        = [['id'=>'3701925919555099999','duration'=>78],['id'=>'3701925919553499999','duration'=>74],['id'=>'3701925919552199999','duration'=>85]];//音頻資訊(上傳三個音頻将 音頻的id以及時長記錄)
    private $VIDEO_DATA         = ['Type'=>'Video', 'VideoItem'=>['SourceMedia'=>'']];//視訊資料
    private $AUDIO_DATA         = ['Type'=>'Audio', 'AudioItem'=>['SourceMedia'=>'','SourceMediaStartTime'=>1]];//音頻資料 SourceMedia 是音頻id
    private $TRANSITION         = ['Type'=>'Transition', 'TransitionItem'=>['Duration'=>0.1, 'Transitions'=>['Type'=>'']]];//視訊過度資料 Duration 過度動畫時間 機關秒 時間會根據這個減少 Transitions内的type是過度效果 對應 $GRADIENT_TYPE 裡面的值
    private $EMPTY              = ['Type'=>'Empty', 'EmptyItem'=>['Duration'=>1]];//音樂過度資料 Duration 代表過度時間 機關秒 時長會根據這個增加
    public  $GRADIENT_TYPE      = ['ImageFadeInFadeOut', 'BowTieHorizontal', 'BowTieVertical', 'ButterflyWaveScrawler', 'Cannabisleaf', 'Circle', 'CircleCrop', 'Circleopen', 'Crosswarp', 'Cube', 'DoomScreenTransition', 'Doorway', 'Dreamy', 'DreamyZoom', 'FilmBurn', 'GlitchMemories', 'Heart', 'InvertedPageCurl', 'Luma', 'Mosaic', 'Pinwheel', 'PolarFunction', 'PolkaDotsCurtain', 'Radial', 'RotateScaleFade', 'Squeeze', 'Swap', 'Swirl', 'UndulatingBurnOutSwirl', 'Windowblinds', 'WipeDown', 'WipeLeft', 'WipeRight', 'WipeUp', 'ZoomInCircles'];//合并視訊的漸變方式
    private $SIGN_TIME          = 60*10;//客戶端 簽名有效時長 機關秒
    private $VIDEO_RAND_VAL     = 25;//視訊截取時間随機取值範圍 機關/100毫秒
    public  $QUANTITY           = ['trigger_num'=>10,'synthesis_num'=>20,'limit_num'=>4,'video_time'=>60,'give_up_time'=>5];//數 分别是 trigger_num：觸發數(剩餘多少宣傳視訊觸發) synthesis_num：合成視訊數量 limit_num：合成視訊最少需要多少個宣傳視訊 video_time：合成視訊最長視訊時間 give_up_time：放棄時長(距離一分鐘還剩多少秒時不在拼接新視訊)
    public  $VIDEO_SIZE_LIMIT   = [5,40];//合成視訊檔案觸發轉碼的檔案大小限制
    private $VIDEO_RAND_AREA    = [3,5];//合成視訊随機視訊數
    /**
     * 騰訊雲 簽名 用戶端
     * @throws
     * @return string
     */
    function TencentSign(){
        $current = time();//确定簽名的目前時間
        $expired = $current + $this->SIGN_TIME;  // 簽名有效期
        $arg_list = [
            'secretId'          =>  $this->SECRET_ID,
            'currentTimeStamp'  =>  $current,
            'expireTime'        =>  $expired,
            'random'            =>  mt_rand()
        ];// 向參數清單填入參數
        $original = http_build_query($arg_list);// 計算簽名
        return base64_encode(hash_hmac('SHA1', $original, $this->SECRET_KEY, true).$original);
    }
    /**
     * 騰訊雲相關接口通路
     * @param array $param 請求參數
     * @param int $type 請求接口類型 1視訊合成 2擷取媒體詳情 3任務詳情 4删除視訊 5終止任務 6視訊壓縮
     * @param int $host 請求域名選擇值
     * @throws
     * @return array
     */
    function Interface(array $param, int $type, int $host=0){
        try {
            $cred = new Credential($this->SECRET_ID, $this->SECRET_KEY);
            $httpProfile = new HttpProfile();
            $httpProfile->setEndpoint($this->HOST[$host]);
            $clientProfile = new ClientProfile();
            $clientProfile->setHttpProfile($httpProfile);
            $client = new VodClient($cred, "", $clientProfile);
            $method_name = $this->METHOD_NAME[$type-1];//擷取方法名
            $class = $this->INTRODUCE_PREFIX.$method_name.'Request';//擷取類路徑
            if($type==1)$param['Output'] = ['FileName'=>date('Ymd').rand(),'ClassId'=>$this->CLASS_ID[3],'Container'=>'mp4','AudioStream' => ['SampleRate' => 48000]];//拼接輸出視訊資訊
            $req = new $class();
            $req->fromJsonString(json_encode($param));
            $resp = $client->$method_name($req);
            return json_decode($resp->toJsonString(),true);
        }
        catch(TencentCloudSDKException $e) {
            return ['code'=>400,'msg'=>$e];
        }
    }
    /**
     * 擷取視訊詳情
     * @param int $merchant_id 商戶id
     * @throws
     * @return array
     */
    function GetVideoDetail(int $merchant_id){
        $FileId = Db::name('merchant_video')->where([['merchant_id','=',$merchant_id],['type','=',2],['is_use','=',1]])->whereNotBetween('size',$this->VIDEO_SIZE_LIMIT)->column('fieldId');
        if(count($FileId)==0)return ['code'=>200,'msg'=>'暫無需視訊詳情'];
        $return = $this->Interface(['FileIds'=>$FileId,'Filters'=>['transcodeInfo']],2);
        if(empty($return['MediaInfoSet'][0]['FileId']))return ['code'=>400,'msg'=>'擷取視訊詳情失敗'];
        foreach($return['MediaInfoSet'] as $v){
            if(empty($v['TranscodeInfo']['TranscodeSet'][1]['Definition']))continue;
            $size = (int)($v['TranscodeInfo']['TranscodeSet'][1]['Size']/1048576);
            if($size<$this->VIDEO_SIZE_LIMIT[0]||$size>$this->VIDEO_SIZE_LIMIT[1]){
                $save = ['is_use'=>2];
            }else{
                $save = ['video'=>$v['TranscodeInfo']['TranscodeSet'][1]['Url'],'size'=>$size];
            }
            Db::name('merchant_video')->where('fieldId',$v['FileId'])->save($save);
        }
        return ['code'=>200,'msg'=>'處理完成'];
    }
    /**
     * 宣傳視訊合成
     * @param int $merchant_id 商戶id
     * @throws
     * @return array
     */
    function VideoSynthesis(int $merchant_id){
        $return = $this->SynthesisJudgment($merchant_id);
        if($return['code']!=200)return $return;
        $num = $return['num'];
        for($i=0 ;$i<$num ;$i++){
            $rand_num = mt_rand($this->VIDEO_RAND_AREA[0],$this->VIDEO_RAND_AREA[1]);
            $video = Db::query('select id,fieldId,duration from backend_merchant_video where merchant_id = '.$merchant_id.' and type = 1 order by rand() limit '.$rand_num);//随機擷取兩條視訊資訊
            $data = $this->SynthesisDealWith($video);
            if($data['code']!=200)continue;
            $return = $this->Interface($data['data'],1);//合成視訊
            if(empty($return['TaskId']))continue;
            $add[] = ['merchant_id'=>$merchant_id,'TaskId'=>$return['TaskId'],'name'=>'合成視訊','type'=>2,'duration'=>$data['duration'],'out'=>$data['out'],'create_time'=>date('Y-m-d H:i:s')];
        }
        $return = Db::name('merchant_video')->insertAll($add);
        if($return<1)return ['code'=>400,'msg'=>'資料表更改失敗'];
        Db::name('merchant')->where('merchant_id',$merchant_id)->inc('use_num',$num)->update();
        return ['code'=>200,'msg'=>'合成視訊成功'];
    }
    /**
     * 合成視訊判斷 及 擷取可用資料 合成數量
     * @param int $merchant_id 檔案id
     * @throws
     * @return array
     */
    private function SynthesisJudgment(int $merchant_id){
        $available_num = Db::name('merchant_video')->where(['merchant_id'=>$merchant_id,'type'=>2,'is_use'=>1])->count();//擷取可用宣傳視訊數
        if($available_num>$this->QUANTITY['trigger_num'])return ['code'=>400,'msg'=>'可用視訊還很充足'];
        $propaganda_num = Db::name('merchant_video')->where(['merchant_id'=>$merchant_id,'type'=>1])->count();
        if($propaganda_num<$this->QUANTITY['limit_num'])return ['code'=>400,'msg'=>'宣傳視訊不足'.$this->QUANTITY['limit_num'].'條'];
        $video_num = Db::name('merchant')->where('merchant_id',$merchant_id)->field('video_num,use_num')->find();//擷取商戶可合成視訊的總數量以及使用數量
        $num = $video_num['video_num']-$video_num['use_num'];
        if($num<1)return ['code'=>400,'msg'=>'你合成視訊的數量已達到上限,如還需合成視訊請聯系平台從業人員'];
        if($num>$this->QUANTITY['synthesis_num'])$num=$this->QUANTITY['synthesis_num'];
        return ['code'=>200,'num'=>$num];
    }
    /**
     * 擷取合成視訊網址
     * @param int $merchant_id 檔案id
     * @throws
     * @return array
     */
    function GetVideoUrl(int $merchant_id){
        $taskId = Db::name('merchant_video')->where(['merchant_id'=>$merchant_id,'type'=>2])->whereRaw('video is null and TaskId is not null')->field('TaskId,duration')->select();
        if(count($taskId)==0)return ['code'=>200,'msg'=>'網址已全'];
        foreach($taskId as $v){
            $return = $this->Interface(['TaskId'=>$v['TaskId']],3);//擷取任務詳情
            if(!empty($return['ComposeMediaTask']['Output']['FileUrl'])){
                $save = ['video'=>$return['ComposeMediaTask']['Output']['FileUrl'],'size'=>(int)($return['ComposeMediaTask']['MetaData']['Size']/1048576),'fieldId'=>$return['ComposeMediaTask']['Output']['FileId']];
                if($save['size']<=$this->VIDEO_SIZE_LIMIT[0]||$save['size']>=$this->VIDEO_SIZE_LIMIT[1]){
                    switch(true) {
                        case ($v['duration']>=50):
                            $Definition = 1;
                            break;
                        case ($v['duration']<50&&$v['duration']>=35):
                            $Definition = 2;
                            break;
                        case ($v['duration']<35&&$v['duration']>=20):
                            $Definition = 3;
                            break;
                        default:
                            $Definition = 5;
                    }
                    $this->Interface(['FileId' => $save['fieldId'], 'MediaProcessTask' => ['TranscodeTaskSet' => [['Definition' => $this->VIDEO_STENCIL_ID[$Definition]]]]],6);//視訊轉碼
                }
                $return = Db::name('merchant_video')->where('TaskId',$v['TaskId'])->save($save);
                if($return<1)return ['code'=>400,'msg'=>'資料處理失敗'];
            }
        }
        return ['code'=>200,'msg'=>'網址處理完成'];
    }
    /**
     * 合成視訊資料處理
     * @param array $video_data 合成視訊參數 包括 duration：時長 fieldId：檔案id
     * @throws
     * @return array
     */
    private function SynthesisDealWith(array $video_data){
        $data = ['Tracks'=>[['Type'=>'Video', 'TrackItems'=>[]]]];//建立資料集
        $duration = 0;//建立視訊時長接收變量
        $val = 0;//建立自增值
        $out = ',';//建立混剪參數接收變量
        foreach($video_data as $v){
            $duration += $v['duration'];
            $out .= $v['id'].',';
            $data['Tracks'][0]['TrackItems'][$val] = $this->VIDEO_DATA;
            $data['Tracks'][0]['TrackItems'][$val]['VideoItem']['SourceMedia'] = $v['fieldId'];
            $rand = mt_rand(1,$this->VIDEO_RAND_VAL)/10;
            $duration -= $rand;
            $data['Tracks'][0]['TrackItems'][$val]['VideoItem']['SourceMediaStartTime'] = $rand;
            if($duration>=($this->QUANTITY['video_time']-$this->QUANTITY['give_up_time'])) {
                if($duration>$this->QUANTITY['video_time']){
                    $data['Tracks'][0]['TrackItems'][$val]['VideoItem']['Duration'] = $v['duration']-$rand-($duration-$this->QUANTITY['video_time']);
                    $duration = $this->QUANTITY['video_time'];
                }
                break;
            }
            $val++;
            if($v['id']!=$video_data[count($video_data)-1]['id']){
                $duration -= 0.1;//減去視訊漸變時間
                $data['Tracks'][0]['TrackItems'][$val] = $this->TRANSITION;
                $data['Tracks'][0]['TrackItems'][$val]['TransitionItem']['Transitions']['Type'] = $this->GRADIENT_TYPE[rand(1,count($this->GRADIENT_TYPE)-1)];
                $val++;
            }
        }
        $data['Tracks'][1] = $this->AudioDealWith($duration);
        return ['code'=>200,'data'=>$data,'out'=>$out,'duration'=>$duration];
    }
    /**
     * 音頻資料處理
     * @param float $duration 所需總時長
     * @throws
     * @return array
     */
    private function AudioDealWith(float $duration){
        $audio = $this->AUDIO_BASIS[mt_rand(1,count($this->AUDIO_BASIS)-1)];
        $last_duration = $duration%$audio['duration'];//擷取最後一輪音樂時長
        $len = (int)ceil($duration/$audio['duration']);//擷取需要的背景音樂輪數
        $data = ['Type'=>'Audio', 'TrackItems'=>[]];//建立音頻資料
        $val = 0;//建立自增值
        for($i=0 ;$i<$len ;$i++){
            $data['TrackItems'][$val] = $this->AUDIO_DATA;
            $data['TrackItems'][$val]['AudioItem']['SourceMedia'] = $audio['id'];
            if($i==$len-1){
                $data['TrackItems'][$val]['AudioItem']['Duration'] = $last_duration;
            }else{
                $val++;
                $data['TrackItems'][$val] = $this->EMPTY;
                $val++;
            }
            if($i==0)$data['TrackItems'][0]['AudioItem']['SourceMediaStartTime'] = 0;
        }
        return $data;
    }
}

我遇到的注意事項

視訊合成音頻有很多雜音，是因為多加了這個參數 AudioOperations 這個參數是用來調整音量的但是不傳其實也有聲音的，把這個參數去掉就沒有雜音了

騰訊雲,雲點播,視訊合成
兩個視訊合成,視訊與視訊合成中間需要有 Transition 轉場 Duration參數是轉場時長總視訊時長會等于兩個視訊的時長減去這個參數值同樣的多音頻也有轉場參數 Empty
騰訊雲,雲點播,視訊合成
合成的視訊轉碼中Kbps隻能轉原視訊的一半低一點，(Kbps是影響視訊大小的重要因素，抖音上傳的視訊中需要大于5M 就可以用到這個) 下面這段是騰訊雲技術客服發我的，你需要找騰訊雲的技術客服把你的視訊轉碼模版轉成 ABR模式你需要給你的模版id給他

雲點播預設是按CRF模式（Constant Ratefactor ）固定碼率系數模式，即在不影響視覺體驗的前提下，減少不必要幀的品質，不遵循特定的輸出碼率，達到減小碼率的效果。RF的範圍是

[0, 51]。其中0為無損模式，51品質最差。RF值加6，輸出碼率大概減少一半；減6，輸出碼率翻倍。從主觀上講，17~29是一個合理的範圍，17往往被認為從視覺上看是無損的。

優點：減少存儲和流量等資源的浪費

缺點：不能控制檔案大小

【解決方案】

如果你們還是要固定轉碼碼率，可以找我們配置ABR模式（Average Bitrate）平均目标碼率模式。設定多少碼率，就可以轉出多少碼率的檔案。

然後資源這塊那個存儲資源一直顯示了但服務概況裡有顯示存儲空間，客服說這塊是沒用完不顯示資源占用具體是不是還不清楚

騰訊雲,雲點播,視訊合成

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