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display: inline-block;
|
|
|
padding: 0;
|
|
|
margin: 0;
|
|
|
min-width: 100%;
|
|
|
vertical-align: top;
|
|
|
}
|
|
|
|
|
|
.multiselect--above .multiselect__content-wrapper {
|
|
|
bottom: 100%;
|
|
|
border-bottom-left-radius: 0;
|
|
|
border-bottom-right-radius: 0;
|
|
|
border-top-left-radius: 5px;
|
|
|
border-top-right-radius: 5px;
|
|
|
border-bottom: none;
|
|
|
border-top: 1px solid #e8e8e8;
|
|
|
}
|
|
|
|
|
|
.multiselect__content::webkit-scrollbar {
|
|
|
display: none;
|
|
|
}
|
|
|
|
|
|
.multiselect__element {
|
|
|
display: block;
|
|
|
}
|
|
|
|
|
|
.multiselect__option {
|
|
|
display: block;
|
|
|
padding: 12px;
|
|
|
min-height: 40px;
|
|
|
line-height: 16px;
|
|
|
text-decoration: none;
|
|
|
text-transform: none;
|
|
|
vertical-align: middle;
|
|
|
position: relative;
|
|
|
cursor: pointer;
|
|
|
white-space: nowrap;
|
|
|
}
|
|
|
|
|
|
.multiselect__option:after {
|
|
|
top: 0;
|
|
|
right: 0;
|
|
|
position: absolute;
|
|
|
line-height: 40px;
|
|
|
padding-right: 12px;
|
|
|
padding-left: 20px;
|
|
|
}
|
|
|
|
|
|
.multiselect__option--highlight {
|
|
|
background: #41b883;
|
|
|
outline: none;
|
|
|
color: #fff;
|
|
|
}
|
|
|
|
|
|
.multiselect__option--highlight:after {
|
|
|
content: attr(data-select);
|
|
|
background: #41b883;
|
|
|
color: #fff;
|
|
|
}
|
|
|
|
|
|
.multiselect__option--selected {
|
|
|
background: #f3f3f3;
|
|
|
color: #35495e;
|
|
|
font-weight: 700;
|
|
|
}
|
|
|
|
|
|
.multiselect__option--selected:after {
|
|
|
content: attr(data-selected);
|
|
|
color: silver;
|
|
|
}
|
|
|
|
|
|
.multiselect__option--selected.multiselect__option--highlight {
|
|
|
background: #ff6a6a;
|
|
|
color: #fff;
|
|
|
}
|
|
|
|
|
|
.multiselect__option--selected.multiselect__option--highlight:after {
|
|
|
background: #ff6a6a;
|
|
|
content: attr(data-deselect);
|
|
|
color: #fff;
|
|
|
}
|
|
|
|
|
|
.multiselect--disabled {
|
|
|
background: #ededed;
|
|
|
pointer-events: none;
|
|
|
}
|
|
|
|
|
|
.multiselect--disabled .multiselect__current,
|
|
|
.multiselect--disabled .multiselect__select,
|
|
|
.multiselect__option--disabled {
|
|
|
background: #ededed;
|
|
|
color: #a6a6a6;
|
|
|
}
|
|
|
|
|
|
.multiselect__option--disabled {
|
|
|
cursor: text;
|
|
|
pointer-events: none;
|
|
|
}
|
|
|
|
|
|
.multiselect__option--disabled.multiselect__option--highlight {
|
|
|
background: #dedede!important;
|
|
|
}
|
|
|
|
|
|
.multiselect-enter-active,
|
|
|
.multiselect-leave-active {
|
|
|
transition: all .15s ease;
|
|
|
}
|
|
|
|
|
|
.multiselect-enter,
|
|
|
.multiselect-leave-active {
|
|
|
opacity: 0;
|
|
|
}
|
|
|
|
|
|
.multiselect__strong {
|
|
|
margin-bottom: 8px;
|
|
|
line-height: 20px;
|
|
|
display: inline-block;
|
|
|
vertical-align: top;
|
|
|
}
|
|
|
|
|
|
[dir=rtl] .multiselect {
|
|
|
text-align: right;
|
|
|
}
|
|
|
|
|
|
[dir=rtl] .multiselect__select {
|
|
|
right: auto;
|
|
|
left: 1px;
|
|
|
}
|
|
|
|
|
|
[dir=rtl] .multiselect__tags {
|
|
|
padding: 8px 8px 0 40px;
|
|
|
}
|
|
|
|
|
|
[dir=rtl] .multiselect__content {
|
|
|
text-align: right;
|
|
|
}
|
|
|
|
|
|
[dir=rtl] .multiselect__option:after {
|
|
|
right: auto;
|
|
|
left: 0;
|
|
|
}
|
|
|
|
|
|
[dir=rtl] .multiselect__clear {
|
|
|
right: auto;
|
|
|
left: 12px;
|
|
|
}
|
|
|
|
|
|
[dir=rtl] .multiselect__spinner {
|
|
|
right: auto;
|
|
|
left: 1px;
|
|
|
}
|
|
|
|
|
|
@keyframes a {
|
|
|
0% {
|
|
|
transform: rotate(0);
|
|
|
}
|
|
|
|
|
|
to {
|
|
|
transform: rotate(2turn);
|
|
|
}
|
|
|
}</style><style type="text/css">
|
|
|
#free-reward-panel .reward-users-modal main {
|
|
|
padding: 0;
|
|
|
}
|
|
|
</style><style type="text/css">
|
|
|
@charset "UTF-8";
|
|
|
/*
|
|
|
* 变量
|
|
|
*/
|
|
|
.reward-note-modal .v-modal {
|
|
|
width: 620px;
|
|
|
text-align: center;
|
|
|
}
|
|
|
.reward-note-modal .v-modal form {
|
|
|
margin: 0 auto 25px auto;
|
|
|
padding: 0 40px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .reward-intro {
|
|
|
margin-top: 20px;
|
|
|
margin-bottom: 20px;
|
|
|
font-size: 16px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .reward-intro .avatar {
|
|
|
cursor: default !important;
|
|
|
width: 36px;
|
|
|
height: 36px;
|
|
|
margin-right: 10px;
|
|
|
display: inline-block;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .reward-intro .intro {
|
|
|
margin-right: 5px;
|
|
|
font-weight: bold;
|
|
|
vertical-align: middle;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .reward-intro i {
|
|
|
color: #EA6F5A;
|
|
|
vertical-align: middle;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs {
|
|
|
margin: 25px 0;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group {
|
|
|
margin: 0 -5px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group input {
|
|
|
display: none;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group input:checked + .option {
|
|
|
color: #EA6F5A;
|
|
|
border-color: #EA6F5A;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .custom-amount:checked + .option .custom-text {
|
|
|
opacity: 0;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .custom-amount:checked + .option .custom-amount-input {
|
|
|
opacity: 1;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option {
|
|
|
position: relative;
|
|
|
margin: 0 5px 15px;
|
|
|
width: 156px;
|
|
|
height: 56px;
|
|
|
line-height: 54px;
|
|
|
border: 1px solid #E6E6E6;
|
|
|
border-radius: 4px;
|
|
|
font-weight: normal;
|
|
|
color: #999999;
|
|
|
cursor: pointer;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option i {
|
|
|
font-size: 16px;
|
|
|
vertical-align: middle;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option .amount {
|
|
|
font-size: 28px;
|
|
|
vertical-align: middle;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option .piece {
|
|
|
font-size: 13px;
|
|
|
vertical-align: sub;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option .custom-amount-input {
|
|
|
position: absolute;
|
|
|
top: 0;
|
|
|
z-index: -1;
|
|
|
width: 100%;
|
|
|
opacity: 0;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option .custom-amount-input i {
|
|
|
position: absolute;
|
|
|
top: 0;
|
|
|
left: 10px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option .custom-amount-input .piece {
|
|
|
position: absolute;
|
|
|
top: 4px;
|
|
|
right: 10px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option .custom-amount-input input {
|
|
|
display: block;
|
|
|
margin: 0 auto;
|
|
|
width: 80px;
|
|
|
height: 54px;
|
|
|
line-height: 54px;
|
|
|
border: none;
|
|
|
font-size: 28px;
|
|
|
text-align: center;
|
|
|
background: transparent;
|
|
|
-moz-appearance: textfield;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .amount-group .option .custom-amount-input input::-webkit-outer-spin-button, .reward-note-modal .v-modal .main-inputs .amount-group .option .custom-amount-input input::-webkit-inner-spin-button {
|
|
|
-webkit-appearance: none !important;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .message {
|
|
|
padding: 15px 20px;
|
|
|
margin-bottom: 0;
|
|
|
font-size: 14px;
|
|
|
border: 1px solid #E6E6E6;
|
|
|
color: #333333;
|
|
|
border-radius: 4px;
|
|
|
background-color: rgba(180, 180, 180, 0.1);
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .message textarea {
|
|
|
width: 100%;
|
|
|
height: 44px;
|
|
|
padding: 0;
|
|
|
margin: 0;
|
|
|
resize: none;
|
|
|
background: none !important;
|
|
|
border: none !important;
|
|
|
-webkit-box-sizing: border-box;
|
|
|
box-sizing: border-box;
|
|
|
-webkit-box-shadow: none;
|
|
|
box-shadow: none;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .main-inputs .message textarea:focus {
|
|
|
outline: none;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .reward-info .amount {
|
|
|
font-size: 28px;
|
|
|
font-weight: bold;
|
|
|
color: #EA6F5A;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .reward-info .pay-method {
|
|
|
font-size: 14px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .reward-info .pay-method a {
|
|
|
color: #3194D0;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay {
|
|
|
margin: 0 -5px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay input {
|
|
|
display: none;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay input:checked + .option {
|
|
|
color: #EA6F5A;
|
|
|
border-color: #EA6F5A;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay .option {
|
|
|
margin: 20px 5px 10px;
|
|
|
width: 156px;
|
|
|
height: 56px;
|
|
|
line-height: 54px;
|
|
|
text-align: center;
|
|
|
border: 1px solid #E6E6E6;
|
|
|
border-radius: 4px;
|
|
|
cursor: pointer;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay .option img {
|
|
|
height: 30px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay .option img.day.alipay, .reward-note-modal .v-modal .choose-pay .option img.night.alipay {
|
|
|
min-width: 85px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay .option img.day.wechat, .reward-note-modal .v-modal .choose-pay .option img.night.wechat {
|
|
|
min-width: 112px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay .option img.night {
|
|
|
display: none;
|
|
|
}
|
|
|
body.reader-night-mode .reward-note-modal .v-modal .choose-pay .option img.night {
|
|
|
display: inline-block;
|
|
|
}
|
|
|
body.reader-night-mode .reward-note-modal .v-modal .choose-pay .option img.day {
|
|
|
display: none;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .choose-pay .tooltip {
|
|
|
width: 230px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .modal-footer {
|
|
|
padding: 0 15px 20px;
|
|
|
border: none;
|
|
|
background-color: transparent;
|
|
|
text-align: center;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .modal-footer .btn {
|
|
|
padding: 8px 45px;
|
|
|
font-size: 24px;
|
|
|
}
|
|
|
.reward-note-modal .v-modal .btn-pay {
|
|
|
padding: 8px 25px;
|
|
|
font-size: 16px;
|
|
|
color: #ffffff;
|
|
|
background-color: #F5A623;
|
|
|
}
|
|
|
.weixin-pay, .success-pay {
|
|
|
text-align: center;
|
|
|
}
|
|
|
.weixin-pay .v-modal, .success-pay .v-modal {
|
|
|
width: 350px;
|
|
|
}
|
|
|
.weixin-pay .ic-successed, .success-pay .ic-successed {
|
|
|
font-size: 60px;
|
|
|
color: #3db922;
|
|
|
}
|
|
|
.weixin-pay h2, .weixin-pay h3, .success-pay h2, .success-pay h3 {
|
|
|
margin-bottom: 20px;
|
|
|
color: #333333;
|
|
|
}
|
|
|
.weixin-pay h2, .success-pay h2 {
|
|
|
margin: 0 0 40px 0;
|
|
|
font-size: 24px;
|
|
|
}
|
|
|
.weixin-pay .bind-text, .success-pay .bind-text {
|
|
|
position: relative;
|
|
|
margin-bottom: 30px;
|
|
|
font-size: 14px;
|
|
|
color: #999999;
|
|
|
}
|
|
|
.weixin-pay .bind-text:before, .weixin-pay .bind-text:after, .success-pay .bind-text:before, .success-pay .bind-text:after {
|
|
|
content: "";
|
|
|
border-top: 1px solid #999;
|
|
|
display: block;
|
|
|
position: absolute;
|
|
|
width: 40px;
|
|
|
top: 8px;
|
|
|
}
|
|
|
.weixin-pay .bind-text:before, .success-pay .bind-text:before {
|
|
|
left: 30px;
|
|
|
}
|
|
|
.weixin-pay .bind-text:after, .success-pay .bind-text:after {
|
|
|
right: 30px;
|
|
|
}
|
|
|
.weixin-pay .share-bind, .success-pay .share-bind {
|
|
|
display: block;
|
|
|
margin-bottom: 30px;
|
|
|
}
|
|
|
.weixin-pay .share-bind i, .success-pay .share-bind i {
|
|
|
margin-right: 4px;
|
|
|
font-size: 22px;
|
|
|
vertical-align: middle;
|
|
|
}
|
|
|
.weixin-pay .share-bind.wechat i, .success-pay .share-bind.wechat i {
|
|
|
color: #00BB29;
|
|
|
}
|
|
|
.weixin-pay .share-bind.weibo i, .success-pay .share-bind.weibo i {
|
|
|
color: #E05244;
|
|
|
}
|
|
|
.weixin-pay .wx-qr-code, .success-pay .wx-qr-code {
|
|
|
display: inline-block;
|
|
|
}
|
|
|
.weixin-pay .wx-qr-code img, .success-pay .wx-qr-code img {
|
|
|
margin: 0 auto;
|
|
|
padding: 10px;
|
|
|
width: 200px;
|
|
|
background-color: #ffffff;
|
|
|
}
|
|
|
.weixin-pay .pay-amount, .success-pay .pay-amount {
|
|
|
margin: 20px 0;
|
|
|
color: #787878;
|
|
|
}
|
|
|
.weixin-pay .pay-amount span, .success-pay .pay-amount span {
|
|
|
color: #F5A623;
|
|
|
}
|
|
|
</style><style type="text/css">
|
|
|
@charset "UTF-8";
|
|
|
/*
|
|
|
* 变量
|
|
|
*/
|
|
|
.v-modal-wrap {
|
|
|
position: fixed;
|
|
|
left: 0;
|
|
|
top: 0;
|
|
|
right: 0;
|
|
|
bottom: 0;
|
|
|
z-index: 9999;
|
|
|
background-color: transparent;
|
|
|
}
|
|
|
.v-modal-wrap.modal-leave-active {
|
|
|
-webkit-transition: opacity 0.3s;
|
|
|
-o-transition: opacity 0.3s;
|
|
|
transition: opacity 0.3s;
|
|
|
}
|
|
|
.v-modal-wrap.modal-enter-active .v-modal-mask, .v-modal-wrap.modal-leave-active .v-modal-mask {
|
|
|
opacity: 0;
|
|
|
}
|
|
|
.v-modal-wrap.modal-enter-active .v-modal, .v-modal-wrap.modal-leave-active .v-modal {
|
|
|
-webkit-transform: translate(-50%, -70%);
|
|
|
-ms-transform: translate(-50%, -70%);
|
|
|
transform: translate(-50%, -70%);
|
|
|
opacity: 0;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal-mask {
|
|
|
background-color: rgba(255, 255, 255, 0.7);
|
|
|
position: absolute;
|
|
|
left: 0;
|
|
|
right: 0;
|
|
|
top: 0;
|
|
|
bottom: 0;
|
|
|
-webkit-transition: opacity 0.3s;
|
|
|
-o-transition: opacity 0.3s;
|
|
|
transition: opacity 0.3s;
|
|
|
opacity: 1;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal {
|
|
|
position: absolute;
|
|
|
left: 50%;
|
|
|
top: 50%;
|
|
|
-webkit-transform: translate(-50%, -50%);
|
|
|
-ms-transform: translate(-50%, -50%);
|
|
|
transform: translate(-50%, -50%);
|
|
|
border-radius: 6px;
|
|
|
border: 1px solid rgba(0, 0, 0, 0.1);
|
|
|
background-color: #fff;
|
|
|
-webkit-box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
|
|
|
box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
|
|
|
-webkit-transition: opacity 0.3s, -webkit-transform 0.3s;
|
|
|
transition: opacity 0.3s, -webkit-transform 0.3s;
|
|
|
-o-transition: opacity 0.3s, transform 0.3s;
|
|
|
transition: opacity 0.3s, transform 0.3s;
|
|
|
transition: opacity 0.3s, transform 0.3s, -webkit-transform 0.3s;
|
|
|
opacity: 1;
|
|
|
display: -webkit-box;
|
|
|
display: -webkit-flex;
|
|
|
display: -ms-flexbox;
|
|
|
display: flex;
|
|
|
-webkit-box-orient: vertical;
|
|
|
-webkit-box-direction: normal;
|
|
|
-webkit-flex-direction: column;
|
|
|
-ms-flex-direction: column;
|
|
|
flex-direction: column;
|
|
|
overflow: hidden;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > header:before, .v-modal-wrap .v-modal > header:after, .v-modal-wrap .v-modal > main:before, .v-modal-wrap .v-modal > main:after, .v-modal-wrap .v-modal > footer:before, .v-modal-wrap .v-modal > footer:after {
|
|
|
content: '';
|
|
|
clear: both;
|
|
|
display: table;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > header {
|
|
|
padding: 20px;
|
|
|
border-bottom: 1px solid #F0F0F0;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > header h4 {
|
|
|
margin: 0;
|
|
|
color: #333;
|
|
|
text-align: left;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal .close {
|
|
|
position: absolute;
|
|
|
right: 16px;
|
|
|
top: 20px;
|
|
|
font-size: 26px;
|
|
|
line-height: 20px;
|
|
|
color: rgba(0, 0, 0, 0.8);
|
|
|
}
|
|
|
.v-modal-wrap .v-modal .close:hover {
|
|
|
color: #000000;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > main {
|
|
|
padding: 20px 20px 20px 20px;
|
|
|
font-size: 15px;
|
|
|
color: #333;
|
|
|
-webkit-box-flex: 1;
|
|
|
-webkit-flex-grow: 1;
|
|
|
-ms-flex-positive: 1;
|
|
|
flex-grow: 1;
|
|
|
overflow-x: hidden;
|
|
|
overflow-y: auto;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > footer {
|
|
|
padding: 20px;
|
|
|
background-color: #fff;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > footer button {
|
|
|
padding: 0;
|
|
|
margin: 0;
|
|
|
background-color: transparent;
|
|
|
border: 0;
|
|
|
float: right;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > footer button:focus {
|
|
|
outline: 0;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > footer .submit {
|
|
|
padding: 4px 12px;
|
|
|
border: 1px solid;
|
|
|
border-radius: 20px;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > footer .cancel {
|
|
|
margin-top: 5px;
|
|
|
}
|
|
|
.v-modal-wrap .v-modal > footer .cancel:hover {
|
|
|
color: #333333;
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal-mask {
|
|
|
background-color: rgba(63, 63, 63, 0.7);
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal {
|
|
|
background-color: #3f3f3f;
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal header {
|
|
|
border-color: #2F2F2F;
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal header h4 {
|
|
|
color: #C8C8C8;
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal .close {
|
|
|
color: #C8C8C8;
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal .close:hover {
|
|
|
color: #ffffff;
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal main {
|
|
|
color: #C8C8C8;
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal footer {
|
|
|
background-color: #3f3f3f;
|
|
|
}
|
|
|
.reader-night-mode .v-modal-wrap .v-modal footer .cancel:hover {
|
|
|
color: #C8C8C8;
|
|
|
}
|
|
|
</style><style type="text/css">
|
|
|
@charset "UTF-8";
|
|
|
/*
|
|
|
* 变量
|
|
|
*/
|
|
|
.youdao-fixed-ad {
|
|
|
display: block;
|
|
|
position: relative;
|
|
|
width: 180px;
|
|
|
height: 180px;
|
|
|
}
|
|
|
.youdao-fixed-ad .img {
|
|
|
display: block;
|
|
|
width: 100%;
|
|
|
height: 100%;
|
|
|
background-repeat: no-repeat;
|
|
|
background-position: center;
|
|
|
background-size: cover;
|
|
|
}
|
|
|
.youdao-fixed-ad .ad-badge {
|
|
|
position: absolute;
|
|
|
bottom: 0;
|
|
|
right: 0;
|
|
|
display: block;
|
|
|
font-size: 12px;
|
|
|
padding: 2px 5px 0 6px;
|
|
|
background-color: rgba(0, 0, 0, 0.5);
|
|
|
color: #fff;
|
|
|
cursor: pointer;
|
|
|
}
|
|
|
</style><style type="text/css">
|
|
|
.yuxi-fixed-ad {
|
|
|
position: relative;
|
|
|
width: 180px;
|
|
|
height: 180px;
|
|
|
}
|
|
|
.yuxi-fixed-ad .img {
|
|
|
display: block;
|
|
|
width: 100%;
|
|
|
height: 100%;
|
|
|
background-repeat: no-repeat;
|
|
|
background-position: center;
|
|
|
background-size: cover;
|
|
|
background-image: url(//cdn2.jianshu.io/assets/web/yuxi-ads-d73b364baf42dfeca32d518c819a0136.jpg);
|
|
|
}
|
|
|
.yuxi-fixed-ad .ad-badge {
|
|
|
position: absolute;
|
|
|
bottom: 0;
|
|
|
right: 0;
|
|
|
display: block;
|
|
|
font-size: 12px;
|
|
|
padding: 2px 5px 0 6px;
|
|
|
background-color: rgba(0, 0, 0, 0.5);
|
|
|
color: #fff;
|
|
|
cursor: pointer;
|
|
|
}
|
|
|
</style><style type="text/css">
|
|
|
@charset "UTF-8";
|
|
|
/*
|
|
|
* 变量
|
|
|
*/
|
|
|
.like[data-v-6ddd02c6] {
|
|
|
display: inline-block;
|
|
|
}
|
|
|
.like .like-group[data-v-6ddd02c6] {
|
|
|
position: relative;
|
|
|
padding: 13px 0 15px 0;
|
|
|
font-size: 0;
|
|
|
border: 1px solid #EA6F5A;
|
|
|
border-radius: 40px;
|
|
|
}
|
|
|
.like .like-group[data-v-6ddd02c6]:hover {
|
|
|
background-color: rgba(236, 97, 73, 0.05);
|
|
|
}
|
|
|
.like .like-group .btn-like[data-v-6ddd02c6] {
|
|
|
display: inline-block;
|
|
|
font-size: 19px;
|
|
|
}
|
|
|
.like .like-group .btn-like[data-v-6ddd02c6]:before {
|
|
|
content: '';
|
|
|
position: absolute;
|
|
|
left: 12px;
|
|
|
top: 2px;
|
|
|
width: 50px;
|
|
|
height: 50px;
|
|
|
background-image: url(//cdn2.jianshu.io/assets/web/like_animation_steps-62a00a7b52377d3069927cdb8e61fd34.png);
|
|
|
background-position: left;
|
|
|
background-repeat: no-repeat;
|
|
|
background-size: 1000px 50px;
|
|
|
}
|
|
|
.like .like-group .btn-like a[data-v-6ddd02c6] {
|
|
|
position: relative;
|
|
|
padding: 18px 30px 18px 55px;
|
|
|
color: #EA6F5A;
|
|
|
}
|
|
|
.like .like-group .modal-wrap[data-v-6ddd02c6] {
|
|
|
font-size: 18px;
|
|
|
border-left: 1px solid rgba(236, 97, 73, 0.4);
|
|
|
display: inline-block;
|
|
|
margin-left: -15px;
|
|
|
}
|
|
|
.like .like-group .modal-wrap a[data-v-6ddd02c6] {
|
|
|
color: #EA6F5A;
|
|
|
padding: 18px 26px 18px 18px;
|
|
|
}
|
|
|
.like .like-group.like-animation[data-v-6ddd02c6], .like .like-group.active[data-v-6ddd02c6] {
|
|
|
background-color: #EA6F5A;
|
|
|
}
|
|
|
.like .like-group.like-animation .btn-like a[data-v-6ddd02c6], .like .like-group.active .btn-like a[data-v-6ddd02c6] {
|
|
|
color: white;
|
|
|
}
|
|
|
.like .like-group.like-animation .modal-wrap[data-v-6ddd02c6], .like .like-group.active .modal-wrap[data-v-6ddd02c6] {
|
|
|
border-left: 1px solid white;
|
|
|
}
|
|
|
.like .like-group.like-animation .modal-wrap a[data-v-6ddd02c6], .like .like-group.active .modal-wrap a[data-v-6ddd02c6] {
|
|
|
color: white;
|
|
|
}
|
|
|
.like .like-group.like-animation .btn-like[data-v-6ddd02c6]:before {
|
|
|
-webkit-animation: likeBlast-data-v-6ddd02c6 0.6s 1 steps(19);
|
|
|
animation: likeBlast-data-v-6ddd02c6 0.6s 1 steps(19);
|
|
|
background-position: right;
|
|
|
}
|
|
|
@-webkit-keyframes likeBlast {
|
|
|
0% {
|
|
|
background-position: left;
|
|
|
}
|
|
|
100% {
|
|
|
background-position: right;
|
|
|
}
|
|
|
}
|
|
|
@keyframes likeBlast-data-v-6ddd02c6 {
|
|
|
0% {
|
|
|
background-position: left;
|
|
|
}
|
|
|
100% {
|
|
|
background-position: right;
|
|
|
}
|
|
|
}
|
|
|
.like .like-group.active .btn-like[data-v-6ddd02c6]:before {
|
|
|
background-position: right;
|
|
|
}
|
|
|
</style><style type="text/css">
|
|
|
@charset "UTF-8";
|
|
|
/*
|
|
|
* 变量
|
|
|
*/
|
|
|
.main {
|
|
|
position: relative;
|
|
|
margin: 0 auto;
|
|
|
padding: 0 0 30px 0;
|
|
|
width: 620px;
|
|
|
}
|
|
|
.main .title {
|
|
|
padding-left: 8px;
|
|
|
border-left: 3px solid #EA6F5A;
|
|
|
line-height: 1;
|
|
|
font-size: 15px;
|
|
|
}
|
|
|
.main .collection-settings {
|
|
|
position: absolute;
|
|
|
top: 2px;
|
|
|
right: 0;
|
|
|
font-size: 13px;
|
|
|
color: #A0A0A0;
|
|
|
}
|
|
|
.main .collection-settings span {
|
|
|
padding-left: 4px;
|
|
|
}
|
|
|
.main .include-collection {
|
|
|
width: 100%;
|
|
|
padding-top: 20px;
|
|
|
display: -webkit-box;
|
|
|
display: -webkit-flex;
|
|
|
display: -ms-flexbox;
|
|
|
display: flex;
|
|
|
-webkit-box-orient: horizontal;
|
|
|
-webkit-box-direction: normal;
|
|
|
-webkit-flex-direction: row;
|
|
|
-ms-flex-direction: row;
|
|
|
flex-direction: row;
|
|
|
-webkit-box-pack: start;
|
|
|
-webkit-justify-content: flex-start;
|
|
|
-ms-flex-pack: start;
|
|
|
justify-content: flex-start;
|
|
|
-webkit-box-align: center;
|
|
|
-webkit-align-items: center;
|
|
|
-ms-flex-align: center;
|
|
|
align-items: center;
|
|
|
-webkit-flex-wrap: wrap;
|
|
|
-ms-flex-wrap: wrap;
|
|
|
flex-wrap: wrap;
|
|
|
}
|
|
|
.main .include-collection .item {
|
|
|
display: inline-block;
|
|
|
margin: 0 12px 12px 0;
|
|
|
min-height: 32px;
|
|
|
background-color: white;
|
|
|
border: 1px solid #DCDCDC;
|
|
|
border-radius: 4px;
|
|
|
vertical-align: top;
|
|
|
overflow: hidden;
|
|
|
}
|
|
|
.main .include-collection .item img {
|
|
|
width: 32px;
|
|
|
height: 32px;
|
|
|
}
|
|
|
.main .include-collection .item .name {
|
|
|
display: inline-block;
|
|
|
padding: 0 10px;
|
|
|
font-size: 14px;
|
|
|
}
|
|
|
.main .include-collection .add-collection-wrap {
|
|
|
margin: 0 12px 12px 0;
|
|
|
}
|
|
|
.main .include-collection .add-collection {
|
|
|
padding: 8px 12px;
|
|
|
font-size: 14px;
|
|
|
border: 1px solid #DCDCDC;
|
|
|
border-radius: 4px;
|
|
|
}
|
|
|
.main .include-collection .add-collection i {
|
|
|
margin-right: 4px;
|
|
|
color: #969696;
|
|
|
}
|
|
|
.main .recommend-note a {
|
|
|
position: relative;
|
|
|
margin: 20px 2px 0 0;
|
|
|
width: 200px;
|
|
|
height: 160px;
|
|
|
display: inline-block;
|
|
|
}
|
|
|
.main .recommend-note a:after {
|
|
|
content: "";
|
|
|
position: absolute;
|
|
|
width: 200px;
|
|
|
height: 160px;
|
|
|
border-radius: 0 0 4px 4px;
|
|
|
-webkit-box-shadow: inset 0px -80px 50px -22px rgba(0, 0, 0, 0.6);
|
|
|
box-shadow: inset 0px -80px 50px -22px rgba(0, 0, 0, 0.6);
|
|
|
top: 0;
|
|
|
left: 0;
|
|
|
z-index: 1;
|
|
|
}
|
|
|
.main .recommend-note .name {
|
|
|
position: absolute;
|
|
|
bottom: 40px;
|
|
|
left: 10px;
|
|
|
right: 10px;
|
|
|
font-size: 17px;
|
|
|
font-weight: bold;
|
|
|
color: #ffffff;
|
|
|
z-index: 2;
|
|
|
}
|
|
|
.main .recommend-note .author {
|
|
|
position: absolute;
|
|
|
bottom: 10px;
|
|
|
left: 10px;
|
|
|
right: 10px;
|
|
|
z-index: 2;
|
|
|
}
|
|
|
.main .recommend-note .avatar {
|
|
|
width: 20px;
|
|
|
height: 20px;
|
|
|
display: inline-block;
|
|
|
}
|
|
|
.main .recommend-note .avatar img {
|
|
|
border-radius: 50%;
|
|
|
}
|
|
|
.main .recommend-note .author-name {
|
|
|
font-size: 12px;
|
|
|
color: #ffffff;
|
|
|
display: inline-block;
|
|
|
vertical-align: -1px;
|
|
|
}
|
|
|
.main .show-more {
|
|
|
margin: 0 12px 12px 0;
|
|
|
font-size: 14px;
|
|
|
color: #A0A0A0;
|
|
|
}
|
|
|
</style></head>
|
|
|
|
|
|
<!-- 只给10%的用户添加代码 -->
|
|
|
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<h1 class="title">flv格式详解+实例剖析</h1>
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</a> <div class="info">
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<span class="name"><a href="https://www.jianshu.com/u/1502591a1753">八度空间X</a></span>
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<span class="publish-time" data-toggle="tooltip" data-placement="bottom" title="" data-original-title="最后编辑于 2017.12.08 15:56">2017.12.07 16:43*</span>
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<span class="wordage">字数 1968</span>
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<span class="views-count">阅读 2556</span><span class="comments-count">评论 5</span><span class="likes-count">喜欢 7</span></div>
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<div class="show-content-free">
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<h2>简介</h2>
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<p>FLV（Flash Video）是现在非常流行的流媒体格式，由于其视频文件体积轻巧、封装播放简单等特点，使其很适合在网络上进行应用，目前主流的视频网站无一例外地使用了FLV格式。另外由于当前浏览器与Flash Player紧密的结合，使得网页播放FLV视频轻而易举，也是FLV流行的原因之一。</p>
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<p>FLV是流媒体封装格式，我们可以将其数据看为二进制字节流。总体上看，FLV包括文件头（File Header）和文件体（File Body）两部分，其中文件体由一系列的Tag及Tag Size对组成。</p>
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<br>
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<div class="image-package">
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<div class="image-container" style="max-width: 600px; max-height: 414px; background-color: transparent;">
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<div class="image-container-fill" style="padding-bottom: 69.0%;"></div>
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<div class="image-view" data-width="600" data-height="414"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-520e9b3f32512aa4.jpg" data-original-width="600" data-original-height="414" data-original-format="image/jpeg" data-original-filesize="31207" class="" style="cursor: zoom-in;" src="./flv格式详解+实例剖析 - 简书_files/2111324-520e9b3f32512aa4.jpg"></div>
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</div>
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<div class="image-caption">flv.jpg</div>
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</div>
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<h2>FLV格式解析</h2>
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<p>先来一张图，这是《东风破》——周杰伦（<a href="https://link.jianshu.com/?t=http://ovjkwgfx6.bkt.clouddn.com/dongfengpo.flv" target="_blank" rel="nofollow">下载</a>）的一个MV视频。我使用的是Binary Viewer的二进制查看工具。<br>
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</p><div class="image-package">
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<div class="image-container" style="max-width: 700px; max-height: 254px; background-color: transparent;">
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<div class="image-container-fill" style="padding-bottom: 21.029999999999998%;"></div>
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<div class="image-view" data-width="1208" data-height="254"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-0f7238b17864341b.png" data-original-width="1208" data-original-height="254" data-original-format="image/png" data-original-filesize="28449" class="" style="cursor: zoom-in;" src="./flv格式详解+实例剖析 - 简书_files/2111324-0f7238b17864341b.png"></div>
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</div>
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<div class="image-caption">1.png</div>
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</div><p></p>
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<h3>header</h3>
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<p>头部分由一下几部分组成<br>
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Signature(3 Byte)+Version(1 Byte)+Flags(1 Bypte)+DataOffset(4 Byte)</p>
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<ul>
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<li>signature 占3个字节<br>
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固定FLV三个字符作为标示。一般发现前三个字符为FLV时就认为他是flv文件。</li>
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<li>Version 占1个字节<br>
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标示FLV的版本号。这里我们看到是1</li>
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<li>Flags 占1个字节<br>
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内容标示。第0位和第2位,分别表示 video 与 audio 存在的情况.(1表示存在,0表示不存在)。截图看到是<code>0x05</code>，也就是<code>00000101</code>，代表既有视频，也有音频。</li>
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<li>DataOffset 4个字节<br>
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表示FLV的header长度。这里可以看到固定是9</li>
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</ul>
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<h3>body</h3>
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<p>FLV的body部分是由一系列的back-pointers + tag构成</p>
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<ul>
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<li>back-pointers 固定4个字节，表示前一个tag的size。</li>
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<li>tag 分三种类型，video、audio、scripts。</li>
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</ul>
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<h4>tag组成</h4>
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<p><code>tag type</code>+<code>tag data size</code>+<code>Timestamp</code>+<code>TimestampExtended</code>+<code>stream id</code>+ <code>tag data</code></p>
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<ul>
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<li>type 1个字节。8为Audio,9为Video,18为scripts</li>
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<li>tag data size 3个字节。表示tag data的长度。从streamd id 后算起。</li>
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<li>Timestreamp 3个字节。时间戳</li>
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<li>TimestampExtended 1个字节。时间戳扩展字段</li>
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<li>stream id 3个字节。总是0</li>
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<li>tag data 数据部分</li>
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</ul>
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<p>我们根据实例来分析：<br>
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看到第一个TAG<br>
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type=<code>0x12</code>=18。这里应该是一个scripts。<br>
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size=<code>0x000125</code>=293。长度为293。<br>
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timestreamp=<code>0x000000</code>。这里是scripts，所以为0<br>
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TimestampExtended =<code>0x00</code>。<br>
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stream id =<code>0x000000</code><br>
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我们看一下TAG的data部分：<br>
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</p><div class="image-package">
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<div class="image-container" style="max-width: 700px; max-height: 558px; background-color: transparent;">
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<div class="image-container-fill" style="padding-bottom: 65.42%;"></div>
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<div class="image-view" data-width="853" data-height="558"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-bfc5319817e9d389.png" data-original-width="853" data-original-height="558" data-original-format="image/png" data-original-filesize="49866" class="" style="cursor: zoom-in;" src="./flv格式详解+实例剖析 - 简书_files/2111324-bfc5319817e9d389.png"></div>
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</div>
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<div class="image-caption">3.png</div>
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</div><p></p>
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<h4>tag的划分</h4>
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<p>图中红色部分是我标出的两个back-pointers，都是4个字节。而中间就是第一个TAG。那是怎么计算的呢？我们就以这个做个示例。</p>
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<ul>
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<li>首先第一个back-pointers是<code>0x00000000</code>，那是因为后面是第一个TAG。所以他为0。</li>
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<li>然后根据我们我们前面格式获取到size是<code>0x000125</code>。也就是说从stream id后面再加上293个字节就到了第一个TAG的末尾，我们数一下一下。stream id以前总共有24个字节。那么到第一个TAG结束，总共有293+24=137=<code>0x13D</code>。</li>
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<li>接下来我们找到<code>0x13D</code>的地址，从工具上很容易找到，正好就是红色下划线的前面。红色部分是<code>0x00000130</code>=304，这代表的是上一个TAG的大小。</li>
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<li>最后我们计算一下，上一个TAG数据部分是293个字节，前面type、stream id等字段占了11个字节。正好是匹配的。</li>
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</ul>
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<p>上面我们已经知道了怎么取划分每个TAG。接下来我们就看TAG的具体内容</p>
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<h4>tag的内容</h4>
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<p>前面已经提到tag分3种。我们一个个看</p>
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<h5>script</h5>
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<p>脚本Tag一般只有一个，是flv的第一个Tag，用于存放flv的信息，比如duration、audiodatarate、creator、width等。<br>
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|
首先介绍下脚本的数据类型。所有数据都是以数据类型+（数据长度）+数据的格式出现的，数据类型占1byte，数据长度看数据类型是否存在，后面才是数据。<br>
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一般来说，该Tag Data结构包含两个AMF包。AMF（Action Message Format）是Adobe设计的一种通用数据封装格式，在Adobe的很多产品中应用，简单来说，AMF将不同类型的数据用统一的格式来描述。第一个AMF包封装字符串类型数据，用来装入一个“onMetaData”标志，这个标志与Adobe的一些API调用有，在此不细述。第二个AMF包封装一个数组类型，这个数组中包含了音视频信息项的名称和值。具体说明如下，大家可以参照图片上的数据进行理解。</p>
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<table>
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<thead>
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<tr>
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<th>值</th>
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<th>类型</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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|
<td>0</td>
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<td>Number type</td>
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<td>8 Bypte Double</td>
|
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|
</tr>
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<tr>
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<td>1</td>
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<td>Boolean type</td>
|
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<td>1 Bypte bool</td>
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</tr>
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<tr>
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<td>2</td>
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<td>String type</td>
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<td>后面2个字节为长度</td>
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</tr>
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<tr>
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<td>3</td>
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<td>Object type</td>
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<td></td>
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</tr>
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<tr>
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<td>4</td>
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<td>MovieClip type</td>
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<td></td>
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</tr>
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<tr>
|
|
|
<td>5</td>
|
|
|
<td>Null type</td>
|
|
|
<td></td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>6</td>
|
|
|
<td>Undefined type</td>
|
|
|
<td></td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>7</td>
|
|
|
<td>Reference type</td>
|
|
|
<td></td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>8</td>
|
|
|
<td>ECMA array type</td>
|
|
|
<td>数组,类似Map</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>10</td>
|
|
|
<td>Strict array type</td>
|
|
|
<td></td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>11</td>
|
|
|
<td>Date type</td>
|
|
|
<td></td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>12</td>
|
|
|
<td>Long string type</td>
|
|
|
<td>后面4个字节为长度</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<div class="image-package">
|
|
|
<div class="image-container" style="max-width: 700px; max-height: 192px;">
|
|
|
<div class="image-container-fill" style="padding-bottom: 15.709999999999999%;"></div>
|
|
|
<div class="image-view" data-width="1222" data-height="192"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-62dc2554ef155833.png" data-original-width="1222" data-original-height="192" data-original-format="image/png" data-original-filesize="22316" class="image-loading" style="cursor: zoom-in;"></div>
|
|
|
</div>
|
|
|
<div class="image-caption">4.png</div>
|
|
|
</div><br>
|
|
|
<p>上图为第一个AMF包</p>
|
|
|
|
|
|
<ul>
|
|
|
<li>type=<code>0x02</code>对应String</li>
|
|
|
<li>size=<code>0A</code>=10</li>
|
|
|
<li>
|
|
|
<p>value=onMetaData 正好是10个字节。</p>
|
|
|
<br>
|
|
|
<div class="image-package">
|
|
|
<div class="image-container" style="max-width: 700px; max-height: 348px;">
|
|
|
<div class="image-container-fill" style="padding-bottom: 28.74%;"></div>
|
|
|
<div class="image-view" data-width="1211" data-height="348"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-e4db97c919d6c886.png" data-original-width="1211" data-original-height="348" data-original-format="image/png" data-original-filesize="41111" class="image-loading" style="cursor: zoom-in;"></div>
|
|
|
</div>
|
|
|
<div class="image-caption">5.png</div>
|
|
|
</div>
|
|
|
<br>
|
|
|
<p>上图为第二个AMF</p>
|
|
|
</li>
|
|
|
<li>type=<code>0x08</code> 对应ECMA array type。</li>
|
|
|
</ul>
|
|
|
<blockquote>
|
|
|
<p>表示数组，类似Map。后面4个字节为数组的个数。然后是键值对，第一个为键，2个字节为长度。后面跟具体的内容。接着3个字节表示值的类型，然后根据类型判断长度。<br>
|
|
|
上图我们可以判断，总共有13个键值对。<br>
|
|
|
第一个长度为8个字节是duration。值类型是<code>0x004073</code>，第一个字节是00，所以是double，8个字节。<br>
|
|
|
第二个长度5个字节是width。值也是double类型，8个字节。<br>
|
|
|
依次解析下去...</p>
|
|
|
</blockquote>
|
|
|
<p>到处，我们已经知道了如何解析FLV中Tag为script的数据。</p>
|
|
|
<h5>video</h5>
|
|
|
<p></p><div class="image-package">
|
|
|
<div class="image-container" style="max-width: 700px; max-height: 291px;">
|
|
|
<div class="image-container-fill" style="padding-bottom: 38.440000000000005%;"></div>
|
|
|
<div class="image-view" data-width="757" data-height="291"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-a75e5295c4096f01.png" data-original-width="757" data-original-height="291" data-original-format="image/png" data-original-filesize="23012" class="image-loading" style="cursor: zoom-in;"></div>
|
|
|
</div>
|
|
|
<div class="image-caption">6.png</div>
|
|
|
</div><br>
|
|
|
type=<code>0x09</code>=9。这里应该是一个video。<br>
|
|
|
size=<code>0x000030</code>=48。长度为48。<br>
|
|
|
timestreamp=<code>0x000000</code>。<br>
|
|
|
TimestampExtended =<code>0x00</code>。<br>
|
|
|
stream id =<code>0x000000</code><br>
|
|
|
我们看到数据部分：<br>
|
|
|
视频信息+数据<p></p>
|
|
|
<h6>视频信息，1个字节。</h6>
|
|
|
<p>前4位为帧类型Frame Type</p>
|
|
|
<table>
|
|
|
<thead>
|
|
|
<tr>
|
|
|
<th>值</th>
|
|
|
<th>类型</th>
|
|
|
</tr>
|
|
|
</thead>
|
|
|
<tbody>
|
|
|
<tr>
|
|
|
<td>1</td>
|
|
|
<td>keyframe (for AVC, a seekable frame) 关键帧</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>2</td>
|
|
|
<td>inter frame (for AVC, a non-seekable frame)</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>3</td>
|
|
|
<td>disposable inter frame (H.263 only)</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>4</td>
|
|
|
<td>generated keyframe (reserved for server use only)</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>5</td>
|
|
|
<td>video info/command frame</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>后4位为编码ID (CodecID)</p>
|
|
|
<table>
|
|
|
<thead>
|
|
|
<tr>
|
|
|
<th>值</th>
|
|
|
<th>类型</th>
|
|
|
</tr>
|
|
|
</thead>
|
|
|
<tbody>
|
|
|
<tr>
|
|
|
<td>1</td>
|
|
|
<td>JPEG (currently unused)</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>2</td>
|
|
|
<td>Sorenson H.263</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>3</td>
|
|
|
<td>Screen video</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>4</td>
|
|
|
<td>On2 VP6</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>5</td>
|
|
|
<td>On2 VP6 with alpha channel</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>6</td>
|
|
|
<td>Screen video version 2</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>7</td>
|
|
|
<td>AVC</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<h6>特殊情况</h6>
|
|
|
<p>视频的格式(<strong>CodecID</strong>)是AVC（H.264）的话，VideoTagHeader会多出4个字节的信息，AVCPacketType 和CompositionTime。</p>
|
|
|
<ul>
|
|
|
<li>AVCPacketType 占1个字节</li>
|
|
|
</ul>
|
|
|
<table>
|
|
|
<thead>
|
|
|
<tr>
|
|
|
<th>值</th>
|
|
|
<th>类型</th>
|
|
|
</tr>
|
|
|
</thead>
|
|
|
<tbody>
|
|
|
<tr>
|
|
|
<td>0</td>
|
|
|
<td>AVCDecoderConfigurationRecord(AVC sequence header)</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>1</td>
|
|
|
<td>AVC NALU</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>2</td>
|
|
|
<td>AVC end of sequence (lower level NALU sequence ender is not required or supported)</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p><strong>AVCDecoderConfigurationRecord</strong>.包含着是H.264解码相关比较重要的<strong>sps</strong>和<strong>pps</strong>信息，再给AVC解码器送数据流之前一定要把sps和pps信息送出，否则的话解码器不能正常解码。而且在解码器stop之后再次start之前，如seek、快进快退状态切换等，都需要重新送一遍sps和pps的信息.AVCDecoderConfigurationRecord在FLV文件中一般情况也是<strong>出现1次</strong>，也就是<strong>第一个video tag</strong>.</p>
|
|
|
<ul>
|
|
|
<li>CompositionTime 占3个字节</li>
|
|
|
</ul>
|
|
|
<table>
|
|
|
<thead>
|
|
|
<tr>
|
|
|
<th>条件</th>
|
|
|
<th>值</th>
|
|
|
</tr>
|
|
|
</thead>
|
|
|
<tbody>
|
|
|
<tr>
|
|
|
<td>AVCPacketType ==1</td>
|
|
|
<td>Composition time offset</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>AVCPacketType !=1</td>
|
|
|
<td>0</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>我们看第一个video tag，也就是前面那张图。我们看到AVCPacketType =0。而后面三个字节也是0。说明这个tag记录的是AVCDecoderConfigurationRecord。包含sps和pps数据。<br>
|
|
|
再看到第二个video tag</p>
|
|
|
<p></p><div class="image-package">
|
|
|
<div class="image-container" style="max-width: 700px; max-height: 361px;">
|
|
|
<div class="image-container-fill" style="padding-bottom: 45.29%;"></div>
|
|
|
<div class="image-view" data-width="797" data-height="361"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-81454e31e2208b83.png" data-original-width="797" data-original-height="361" data-original-format="image/png" data-original-filesize="33595" class="image-loading" style="cursor: zoom-in;"></div>
|
|
|
</div>
|
|
|
<div class="image-caption">8.png</div>
|
|
|
</div><br>
|
|
|
我们看到 AVCPacketType =1，而后面三个字节为<code>000043</code>。这是一个视频帧数据。<p></p>
|
|
|
<p>解析到的数据完全符合上面的理论。</p>
|
|
|
<h6>sps pps</h6>
|
|
|
<p>前面我们提到第一个video 一般存放的是sps和pps。这里我们具体解析下sps和pps内容。先看下存储的格式（<strong>图6</strong>）：<br>
|
|
|
<code>0x01</code>+<code>sps[1]</code>+<code>sps[2]</code>+<code>sps[3]</code>+<code>0xFF</code>+<code>0xE1</code>+<code>sps size</code>+<code>sps</code>+<code>01</code>+<code>pps size</code>+<code>pps</code><br>
|
|
|
我们看到图7 。<br>
|
|
|
sps[1]=<code>0x64</code><br>
|
|
|
sps[2]=<code>00</code><br>
|
|
|
sps[3]=<code>0D</code><br>
|
|
|
sps size=<code>0x001B</code>=27<br>
|
|
|
跳过27个字节后，是<code>0x01</code><br>
|
|
|
pps size=<code>0x0005</code>=118<br>
|
|
|
跳过5个字节，就到了back-pointers。</p>
|
|
|
<h6>视频帧数据</h6>
|
|
|
<p>解析出sps和pps tag后，后面的video tag就是真正的视频数据内容了<br>
|
|
|
</p><div class="image-package">
|
|
|
<div class="image-container" style="max-width: 700px; max-height: 203px;">
|
|
|
<div class="image-container-fill" style="padding-bottom: 28.63%;"></div>
|
|
|
<div class="image-view" data-width="709" data-height="203"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-2a5a21a2d867698d.png" data-original-width="709" data-original-height="203" data-original-format="image/png" data-original-filesize="18027" class="image-loading" style="cursor: zoom-in;"></div>
|
|
|
</div>
|
|
|
<div class="image-caption">9.png</div>
|
|
|
</div><br>
|
|
|
这是第二个video tag其实和图8一样，只是我圈出来关键信息。先看下格式<br>
|
|
|
frametype=<code>0x17</code>=<code>00010111</code><br>
|
|
|
AVCPacketType =1<br>
|
|
|
Composition Time=<code>0x000043</code><br>
|
|
|
后面就是NALU DATA<p></p>
|
|
|
<h5>Audio</h5>
|
|
|
<p>与视频格式类似<br>
|
|
|
前4位为音频格式</p>
|
|
|
<table>
|
|
|
<thead>
|
|
|
<tr>
|
|
|
<th>值</th>
|
|
|
<th>类型</th>
|
|
|
</tr>
|
|
|
</thead>
|
|
|
<tbody>
|
|
|
<tr>
|
|
|
<td>0</td>
|
|
|
<td>Linear PCM, platform endian</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>1</td>
|
|
|
<td>ADPCM</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>2</td>
|
|
|
<td>MP3</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>3</td>
|
|
|
<td>Linear PCM, little endian</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>4</td>
|
|
|
<td>Nellymoser 16-kHz mono</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>5</td>
|
|
|
<td>Nellymoser 8-kHz mono</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>6</td>
|
|
|
<td>Nellymoser</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>7</td>
|
|
|
<td>G.711 A-law logarithmic PCM</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>8</td>
|
|
|
<td>G.711 mu-law logarithmic PCM</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>9</td>
|
|
|
<td>reserved</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>10</td>
|
|
|
<td>AAC</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>11</td>
|
|
|
<td>Speex</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>14</td>
|
|
|
<td>MP3 8-Khz</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>15</td>
|
|
|
<td>Device-specific sound</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>接着2位为采样率</p>
|
|
|
<table>
|
|
|
<thead>
|
|
|
<tr>
|
|
|
<th>值</th>
|
|
|
<th>类型</th>
|
|
|
</tr>
|
|
|
</thead>
|
|
|
<tbody>
|
|
|
<tr>
|
|
|
<td>0</td>
|
|
|
<td>5.5-kHz</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>1</td>
|
|
|
<td>11-kHz</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>2</td>
|
|
|
<td>22-kHz</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>3</td>
|
|
|
<td>44-kHz</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<blockquote>
|
|
|
<p>对于AAC总是3</p>
|
|
|
</blockquote>
|
|
|
<p>接着1位为采样的长度</p>
|
|
|
<table>
|
|
|
<thead>
|
|
|
<tr>
|
|
|
<th>值</th>
|
|
|
<th>类型</th>
|
|
|
</tr>
|
|
|
</thead>
|
|
|
<tbody>
|
|
|
<tr>
|
|
|
<td>0</td>
|
|
|
<td>snd8Bit</td>
|
|
|
</tr>
|
|
|
<tr>
|
|
|
<td>1</td>
|
|
|
<td>snd16Bit</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<blockquote>
|
|
|
<p>压缩过的音频都是16bit</p>
|
|
|
</blockquote>
|
|
|
<p>接着1位为音频类型</p>
|
|
|
<table>
|
|
|
<thead>
|
|
|
<tr>
|
|
|
<th>值</th>
|
|
|
<th>类型</th>
|
|
|
</tr>
|
|
|
</thead>
|
|
|
<tbody>
|
|
|
<tr>
|
|
|
<td>0</td>
|
|
|
<td>sndMono</td>
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</tr>
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<tr>
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<td>1</td>
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<td>sndStereo</td>
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</tr>
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</tbody>
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</table>
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<blockquote>
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<p>对于AAC总是1</p>
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</blockquote>
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<p>我们看到第三个TAG</p>
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<div class="image-package">
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<div class="image-container" style="max-width: 674px; max-height: 158px;">
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<div class="image-view" data-width="674" data-height="158"><img data-original-src="//upload-images.jianshu.io/upload_images/2111324-eceef7ad27b503ba.png" data-original-width="674" data-original-height="158" data-original-format="image/png" data-original-filesize="13006" class="image-loading" style="cursor: zoom-in;"></div>
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</div>
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<div class="image-caption">7.png</div>
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</div><br>
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<p>这个留给大家自己来解析吧。</p>
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</div>
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</div>
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© 著作权归作者所有
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<img src="./flv格式详解+实例剖析 - 简书_files/92e3ca73-1383-42cb-b075-138f046773c9.jpg" alt="96">
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</a> <a class="btn btn-success follow"><i class="iconfont ic-follow"></i><span>关注</span></a>
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<p>写了 87001 字，被 195 人关注，获得了 161 个喜欢</p></div>
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<div class="signature">我不停地奔跑 只为追回那个曾经被寄予厚望的自己</div>
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