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<script setup lang="ts">
import { computed, onMounted, onUnmounted, ref, watch } from 'vue'
import { buildVideoFrameUrl } from '@/lib/api'
import type { VideoStatus } from '@/types'
const props = defineProps<{
video: VideoStatus | null
}>()
const frameUrl = ref(buildVideoFrameUrl(0))
const currentFps = computed(() => props.video?.fps ?? 30)
const canRequestFrames = computed(() => props.video == null || props.video.available)
const modeLabel = computed(() => {
if (!props.video) {
return '--'
}
if (props.video.source_mode === 'omnisocket-jpeg-live') {
return `${props.video.fps} FPS 实时接收`
}
if (props.video.source_mode === 'omnisocket-waiting') {
return '等待 OmniSocket 实时帧'
}
if (props.video.source_mode === 'sample-jpeg-frame-loop') {
return `${props.video.fps} FPS 本地演示`
}
return `${props.video.fps} FPS`
})
let frameTimer: number | null = null
let frameKey = 0
function refreshFrame() {
if (!canRequestFrames.value) {
return
}
frameKey += 1
frameUrl.value = buildVideoFrameUrl(frameKey)
}
function startFrameLoop() {
if (frameTimer != null) {
window.clearInterval(frameTimer)
frameTimer = null
}
if (!canRequestFrames.value) {
return
}
refreshFrame()
const intervalMs = Math.max(33, Math.round(1000 / currentFps.value))
frameTimer = window.setInterval(() => {
refreshFrame()
}, intervalMs)
}
onMounted(() => {
startFrameLoop()
})
onUnmounted(() => {
if (frameTimer != null) {
window.clearInterval(frameTimer)
}
})
watch([currentFps, canRequestFrames], () => {
startFrameLoop()
})
</script>
<template>
<section class="panel video-panel">
<div class="panel-head">
<div>
<p class="eyebrow">Video</p>
<h2>JPEG 视频流</h2>
</div>
<span class="badge" :class="{ bad: !video?.available }">
{{ video?.source_mode ?? 'loading' }}
</span>
</div>
<div class="video-shell">
<img
v-if="canRequestFrames"
class="video-frame"
:src="frameUrl"
alt="Robot jpeg frame stream"
/>
<div v-else class="video-placeholder">
正在等待 OmniSocket 实时 JPEG 帧接入...
</div>
</div>
<div class="stats">
<div class="stat-card">
<span>帧源</span>
<strong>{{ video?.frame_count ?? '--' }} JPEG</strong>
</div>
<div class="stat-card">
<span>当前模式</span>
<strong>{{ modeLabel }}</strong>
</div>
</div>
<p class="hint">
这里始终按固定频率逐张请求 Django 返回的单帧 JPEG不依赖 MJPEG只要后端已经收到
OmniSocket 里的真实 JPEG 这个组件就会直接显示实时画面
</p>
<p class="hint subtle">
当前帧源状态{{ video?.source_detail ?? '暂无' }}
</p>
</section>
</template>
<style scoped>
.video-panel {
display: grid;
gap: 16px;
}
.panel-head {
display: flex;
justify-content: space-between;
gap: 12px;
align-items: start;
}
.eyebrow {
margin: 0 0 4px;
color: #5b7aff;
text-transform: uppercase;
letter-spacing: 0.12em;
font-size: 12px;
font-weight: 700;
}
h2 {
margin: 0;
font-size: 24px;
}
.badge {
padding: 8px 12px;
border-radius: 999px;
background: rgba(40, 199, 111, 0.16);
color: #63e6a9;
font-size: 12px;
font-weight: 700;
}
.badge.bad {
background: rgba(255, 107, 107, 0.18);
color: #ffb4b4;
}
.video-shell {
overflow: hidden;
border-radius: 20px;
border: 1px solid rgba(133, 147, 169, 0.28);
background: linear-gradient(180deg, #09111f 0%, #050812 100%);
}
.video-frame {
display: block;
width: 100%;
aspect-ratio: 16 / 9;
object-fit: cover;
background: #02050d;
}
.video-placeholder {
display: grid;
place-items: center;
width: 100%;
aspect-ratio: 16 / 9;
padding: 24px;
color: #a8b4ce;
text-align: center;
line-height: 1.7;
background:
radial-gradient(circle at top, rgba(91, 122, 255, 0.14), transparent 42%),
#02050d;
}
.stats {
display: grid;
grid-template-columns: repeat(2, minmax(0, 1fr));
gap: 12px;
}
.stat-card {
padding: 14px;
border-radius: 16px;
background: rgba(7, 14, 26, 0.78);
border: 1px solid rgba(133, 147, 169, 0.2);
}
.stat-card span {
display: block;
margin-bottom: 8px;
color: #8d99b3;
font-size: 12px;
}
.stat-card strong {
font-size: 18px;
}
.hint {
margin: 0;
color: #8d99b3;
line-height: 1.65;
}
.hint.subtle {
font-size: 13px;
}
@media (max-width: 720px) {
.stats {
grid-template-columns: 1fr;
}
}
</style>