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#!/usr/bin/python2.7
# coding=utf-8
import os
import json
import subprocess
class Stream(object):
def __init__(self):
self.cmd = ""
self.out_file = ""
self.vcode_type = ""
self.input_file = ""
self.word_list_str = ""
self.subbtitle_file = ""
self.cmd = []
self.img_file = []
self.word_list = []
self.img_dynamic_list = []
self.image_list = {}
self.dynamic_list = {}
# 输入文件
def input(self, file):
self.input_file = file
# 添加图片
def img(self, img, x="0", y="0", str_time="0", end_time="0"):
if img == "":
return False
input_info = self.video_info()
if end_time == "0":
end_time = float(input_info["format"]["duration"]) + 10.0
img_data = {
"img": img,
"x": str(x),
"y": str(y),
"str_time": str(str_time),
"end_time": str(end_time)
}
self.img_file.append(img_data)
img_input = []
img_overlay = []
for val in self.img_file:
img_input.append(" -i %s" % val["img"])
img_overlay.append(" overlay=x=%s:y=%s:enable='if(gt(t,%s),lt(t,%s))" % (
val["x"],
val["y"],
val["str_time"],
val["end_time"]
)
)
img_input_str = " ".join(img_input)
img_overlay_str = ",".join(img_overlay)
self.image_list = {
"input": img_input_str,
"overlay": img_overlay_str
}
# 添加动态图片 gif apng 等
def img_dynamic(self, file, x="0", y="0", str_time="0", end_time="0"):
input_info = self.video_info()
if file == "":
return False
if end_time == "":
end_time = float(input_info["format"]["duration"]) + 10.0
apng = {
"input": " -ignore_loop 0 -i %s" % file,
"x": str(x),
"y": str(y),
"str_time": str(str_time),
"end_time": str(end_time)
}
self.img_dynamic_list.append(apng)
img_dy_input = []
img_dy_overlay = []
for val in self.img_dynamic_list:
img_dy_input.append(val["input"])
img_dy_overlay.append(" overlay=x=%s:y=%s:shortest=1:enable='if(gt(t,%s), lt(t,%s))'" % (
val["x"],
val["y"],
val["str_time"],
val["end_time"]
)
)
img_dy_input_str = " ".join(img_dy_input)
img_dy_overlay_str = ",".join(img_dy_overlay)
self.dynamic_list = {
"input": img_dy_input_str,
"overlay": img_dy_overlay_str
}
# 添加文字水印
def word_water_mark(self, c, x="0", y="0", str_time="0", end_time="0", font="", color="white"):
if font == "":
return False
input_info = self.video_info()
if c == "":
return False
if end_time == "0":
end_time = float(input_info["format"]["duration"]) + 10.0
text = " drawtext=text='%s':x=%s:y=%s:enable='if(gt(t,%s),lt(t,%s))':fontfile=%s:" \
"fontcolor=%s" % (c, str(x), str(y), str(str_time), str(end_time), str(font), str(color))
self.word_list.append(text)
self.word_list_str = ",".join(self.word_list)
# 添加字幕文件 subtitles=txt.srt
def subbtitle(self, file):
self.subbtitle_file = " subtitles=%s" % file
# 编码方式 -vcodec
def vcode(self, code):
if code == "":
return False
self.vcode_type = " -vcodec %s" % code
# 输出文件
def out(self, file):
if file == "":
return False
self.out_file = "%s" % file
# 执行脚本
def run(self):
if self.input_file == "":
return False
im = "ffmpeg -i %s" % self.input_file
ov = ""
if len(self.dynamic_list) > 0 and self.dynamic_list["input"] != "":
im = "%s %s" % (im, self.dynamic_list["input"])
if ov != "":
ov = "%s,%s" % (ov, self.dynamic_list["overlay"])
else:
ov = self.dynamic_list["overlay"]
if len(self.image_list) > 0:
im = "%s %s" % (im, self.image_list["input"])
if ov != "":
ov = "%s,%s" % (ov, self.dynamic_list["overlay"])
else:
ov = self.dynamic_list["overlay"]
# 文字水印
if self.word_list_str != "":
if ov != "":
ov = "%s,%s" % (ov, self.word_list_str)
else:
ov = self.word_list_str
# 字幕
if self.subbtitle_file != "":
if ov != "":
ov = "%s,%s" % (ov, self.subbtitle_file)
else:
ov = self.subbtitle_file
if self.vcode_type != "":
self.cmd = "%s -filter_complex \"%s\" -y %s %s" % (im, ov, self.vcode_type, self.out_file)
else:
self.cmd = "%s -filter_complex \"%s\" -y %s" % (im, ov, self.out_file)
self.do()
# 获取视频的相关时长信息
def video_info(self):
result = {}
if os.path.isfile(self.input_file) is False:
return result
cmd = ['ffprobe', '-v', 'quiet', '-print_format', 'json', '-show_format', '-show_streams', self.input_file]
returned_data = subprocess.check_output(cmd)
return json.loads(returned_data.decode('utf-8'))
# 执行命令
def do(self):
if self.cmd == "":
return False
res = subprocess.call(self.cmd, shell=True)
if res != 0:
return False
return True
if __name__ == '__main__':
stream = Stream()
stream.input("face.mp4")
stream.img("t1.png")
stream.img("t2.png", "10", y=10, str_time=5, end_time=10)
stream.img_dynamic("t1.apng", x=10, y=10, str_time=5, end_time=10)
stream.img_dynamic("t2.apng", x=10, y=10, str_time=5, end_time=9)
stream.word_water_mark("测试文字水印1", x="10", y="10", str_time="0", end_time="20", font="ttf.ttf", color="white")
stream.word_water_mark("测试文字水印2", x="10", y="10", str_time="0", end_time="20", font="ttf.ttf", color="white")
stream.subbtitle("srt.srt")
stream.out("out.mp4")
stream.run()
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