1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
from __future__ import unicode_literals, absolute_import, print_function
import ffmpy
import hashlib
import json
import os
import requests
import time
from urllib.parse import urljoin
from django.conf import settings
from celery import shared_task
# from celery_once import QueueOnce
from gm_upload import (
video_clipping,
upload_file,
video_delete,
get_video_base_info,
)
from gm_upload.utils.qiniu_tool import QiniuTool
from gm_types.gaia import (
VIDEO_CODE_STATUS,
QINIU_VIDEO_HANDLE_STATUS_CODE,
)
from utils.UploadVideoPicture import UploadVideoPicture
from talos.models.topic.video import VideoCover
from talos.rpc import logging_exception
@shared_task
def get_video_blurcover(source_id=None, source_type=None, video_list=None):
for item in video_list:
if source_type and source_id:
# 防止数据被重复写入数据库 TODO : 将先判断是否存在数据库中，改为在celery队列中判断是否有重复的数据
video = VideoCover.objects.filter(
source_id=source_id,
source_type=source_type,
video_url=item.replace(settings.VIDEO_HOST, '')
).first()
if not video:
create_data = {
"source_id": source_id,
"source_type": source_type,
"video_pic": UploadVideoPicture(item),
"video_url": item.replace(settings.VIDEO_HOST, ''),
}
create_data.update(get_video_base_info(item))
VideoCover.objects.create(**create_data)
@shared_task
def video_cover_fsm_runner():
"""
状态机
考虑封装成类，根据状态给对应worker添加任务
:return:
"""
# 截取视频前两秒
clipping_id_list = list(VideoCover.objects.filter(
persistent_clip_status=VIDEO_CODE_STATUS.NOSTART
).values_list("id", flat=True))
for video_id in clipping_id_list:
video_cover_for_rich_text_set_clipping_to_video.delay(video_id)
# 检查七牛云截取状态
check_id_list = list(VideoCover.objects.filter(
persistent_clip_status=VIDEO_CODE_STATUS.WAITING
).values_list("id", flat=True))
for video_id in check_id_list:
check_video_cover_for_rich_text_clipping_is_finish.delay(video_id)
# 将七牛云截取成功的 mp4 转换为 webP 动图并上传
set_id_list = list(VideoCover.objects.filter(
persistent_clip_status=VIDEO_CODE_STATUS.OPERATING_LOCAL
).values_list("id", flat=True))
for video_id in set_id_list:
set_video_cover_for_rich_text_webp_pic.delay(video_id)
@shared_task
def video_cover_for_rich_text_set_clipping_to_video(video_id):
video = VideoCover.objects.get(id=video_id)
if video.persistent_clip_status != VIDEO_CODE_STATUS.NOSTART:
return
hash_key = hashlib.md5(str(time.time()).encode("utf8")).hexdigest()
pid = video_clipping(
video.video_url,
new_filename='{}_clip.mp4'.format(hash_key),
video_type='mp4',
water_mark_url=None # settings.WATER_MARK_URL_FOR_VIDEO
)
video.persistent_clip_status = VIDEO_CODE_STATUS.WAITING
video.persistent_clip_id = pid
video.save(update_fields=['persistent_clip_id', 'persistent_clip_status'])
@shared_task
def check_video_cover_for_rich_text_clipping_is_finish(video_id):
try:
video = VideoCover.objects.get(id=video_id)
if video.persistent_clip_status != VIDEO_CODE_STATUS.WAITING:
return
if video.persistent_clip_id:
result = json.loads(requests.get(
settings.QINIU_VIDEO_INQUIRE_HOST + video.persistent_clip_id
).text)
# 状态码0成功，1等待处理，2正在处理，3处理失败，4通知提交失败。
# 如果请求失败，返回包含如下内容的JSON字符串{"error": "<ErrMsg string>"}
code = result.get('code')
error = result.get('error', '')
if error:
return
if code not in (QINIU_VIDEO_HANDLE_STATUS_CODE.SUCCESS,
QINIU_VIDEO_HANDLE_STATUS_CODE.PROCESSING_FAIL):
return
elif code == QINIU_VIDEO_HANDLE_STATUS_CODE.PROCESSING_FAIL:
video.persistent_clip_status = VIDEO_CODE_STATUS.FAIL
video.save(update_fields=['persistent_clip_status'])
else:
if result['items'][0]['code'] == QINIU_VIDEO_HANDLE_STATUS_CODE.SUCCESS:
mp4_key = result['items'][0]['key']
# 刷新cdn缓存
QiniuTool.refresh_qiniu_resource_cache([
urljoin(settings.VIDEO_HOST, mp4_key)
])
video.intercept_video_url = mp4_key
video.persistent_clip_status = VIDEO_CODE_STATUS.OPERATING_LOCAL
video.save(update_fields=['persistent_clip_status',
'intercept_video_url'])
else:
video.persistent_status = result['items'][0]['code']
video.save(update_fields=['persistent_clip_status'])
except:
logging_exception()
@shared_task
def set_video_cover_for_rich_text_webp_pic(video_id):
video = VideoCover.objects.get(id=video_id)
if video.persistent_clip_status != VIDEO_CODE_STATUS.OPERATING_LOCAL:
return
mp4_key = video.intercept_video_url
hash_key = hashlib.md5(str(time.time()).encode("utf8")).hexdigest()
input_path = os.path.join(settings.VIDEO_CONVERT_PATH, "{}.mp4".format(hash_key))
output_path = os.path.join(settings.VIDEO_CONVERT_PATH, '{}.webp'.format(hash_key))
try:
clipping_video_url = settings.VIDEO_HOST + mp4_key
res = requests.get(clipping_video_url)
# 文件存储到本地
with open(input_path, 'wb') as f:
f.write(res.content)
# 使用底层 FFmpeg 库进行转码
ff = ffmpy.FFmpeg(
inputs={input_path: None},
outputs={output_path: settings.VIDEO_FF_ARGS}
)
ff.run()
# 上传webP图片
video.webp_url = upload_file(output_path)
video.persistent_clip_status = VIDEO_CODE_STATUS.SUCCESS
video.save(update_fields=['webp_url', 'persistent_clip_status'])
# 删除中间数据
video_delete(mp4_key)
# 刷新缓存
QiniuTool.refresh_qiniu_resource_cache(
[urljoin(settings.VIDEO_HOST, mp4_key)]
)
except:
logging_exception()
video.persistent_clip_status = VIDEO_CODE_STATUS.FAIL
video.save(update_fields=['persistent_clip_status'])
finally:
if os.path.exists(input_path):
os.remove(input_path)
if os.path.exists(output_path):
os.remove(output_path)