文章/答案/技术大牛

发布

社区首页 >问答首页 >如何指定带音频下载视频的ydl选项？

问如何指定带音频下载视频的ydl选项？
EN

Stack Overflow用户

提问于 2022-01-17 16:12:12

回答 1查看 884关注 0票数 0

我正在使用youtube-dl和Python下载一个mp4视频(包括声音/音频)；我得到了mp4视频，但是，我无法设置正确的ydl选项来获得声音视频。

我的目标是下载一个带有声音的mp4格式的视频(质量240 p或360 p)。

下面是我尝试过的不同的ydl选项--所有这些组合都可以获得视频，但是，没有声音：

ydl_opts = {'format': 'bestvideo[height<=480]+bestaudio[ext=mp4]/best'}
ydl_opts = {'format': 'bestvideo[height<=480]/best'}
ydl_opts = {'format': 'bestvideo[ext=mp4]+bestaudio[ext=mp4]/mp4+best[height<=480]'}

我试过：

使用-f "best[height<=480]" -代码从README.md更改ydl选项。
在这个问题和这个答案中将该选项修改为shwon。

是否有更容易跟踪的文档来设置ydl选项以实现上述目标？

这是我的完整代码：

# Library import: 
from yt_dlp import YoutubeDL

# Variables:
amount = 8 # Quantity of videos per page - next, research how to make search pagination.
urlFound = "" # Testing - this is the url of the video to download.
valid_formats = ["133", "134"] # Acceptable formats: 240p or 360p.

# ydl options.
# Sources: 
# https://stackoverflow.com/q/60489888/12511801
# https://stackoverflow.com/a/49222737/12511801
#ydl_opts = {'format': 'bestvideo[height<=480]+bestaudio[ext=mp4]/best'}
#ydl_opts = {'format': 'bestvideo[height<=480]/best'}
ydl_opts = {'format': 'bestvideo[ext=mp4]+bestaudio[ext=mp4]/mp4+best[height<=480]'}

# Input the search term: 
searchTerm = input("Please enter the search term: ")

# Validate input -> field cannot be empty: 
while (len(searchTerm.strip()) == 0):
  searchTerm = input("Field cannot be empty - please enter the search term: ")

# Use ydl for search videos: 
with YoutubeDL(ydl_opts) as ydl: 
  try:
    info = ydl.extract_info(f"ytsearch{amount}:{searchTerm}", download=False, ie_key="YoutubeSearch")
    
    if (len(info["entries"]) == 0): 
      print("No results for (" + searchTerm + ")")
    else: 
      print("Checking " + str(len(info["entries"])) + " results: ")

      # Loop the results and verify if a valid video is found: 
      for indx, videoResult in enumerate(info["entries"]): 
        # Loop for valid format(s) available: 
        for frm_in_video in videoResult["formats"]: 
          if (str(frm_in_video['format_id']) in valid_formats): 
            urlFound = frm_in_video['url']
            break # Video found.
      
      # Verify if the video was found: 
      if (len(urlFound.strip()) == 0): 
        print("No valid video found - use next page and see more results")
      else: 
        print("This is the valid video: " + urlFound)


  except Exception as ex:
    print("Error at searching videos. See details bellow")
    print(str(ex))

python

youtube-dl

回答 1

Stack Overflow用户

回答已采纳

发布于 2022-01-17 16:54:14

经过更多的测试后，我将ydl选项保留如下：

ydl_opts = {'format': 'bestvideo[ext=mp4]+bestaudio[ext=mp4]/mp4+best[height<=480]'}

然后，我进一步修改了设置在视频中的一个单独变量的源代码。

# Variable that will store the video found. It will be a <dict> type value.
videoFound = None

接下来，(一旦检测到所需的视频)，我设置了在上一行中创建的videoFound的值：

# Loop the results and verify if a valid video is found: 
for indx, videoResult in enumerate(info["entries"]): 
  # Loop for valid format(s) available: 
  for frm_in_video in videoResult["formats"]: 
    if (str(frm_in_video['format_id']) in valid_formats): 
      # Video found.
      videoFound = videoResult
      break # No need for keep looking further.

最后，当我验证是否找到任何视频时，我读取了videoFound变量=，这是一个字典。

# Verify if the video was found: 
if (len(urlFound.strip()) == 0): 
  print("No valid video found - use next page")
else: 
  try: 
    if (videoFound is not None): 
      print("Title: " + videoFound['title'])

      # This is the video - for some reason, 
      # while using (bestaudio[ext=m4a]) - as suggested in the comment - 
      # Link: https://stackoverflow.com/questions/70744328/how-to-specify-ydl-options-for-download-video-with-audio?noredirect=1#comment125064688_70744328
      # the returned URL is a "dash" video, but, with no sound, so, 
      # I rather get the values from the "videoFound" variable: 
      try: 
        print("URL: " + videoFound['url'])
      except Exception as ex: 
        print("This is the valid video: " + urlFound)

      print("Webpage URL: " + videoFound['webpage_url'])
      print("Video ID: " + videoFound['id'])
      print("Duration: " + videoFound['duration_string'])
      print("Published at: " + videoFound['upload_date'])
      print("View count: " + str(videoFound['view_count']))
      print("Uploader: " + videoFound['uploader'])
      print("Channel ID: " + videoFound['channel_id'])
      print("Channel URL: " + videoFound['channel_url'])
      print("Resolution: " + videoFound['resolution'])
    else: 
      # Optional - show the url get in the "urlFound" variable: 
      print("This is the valid video: " + urlFound)
  except Exception as ex: 
    print("Error at getting information from video found:")
    print(str(ex))

票数 1

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/70744328

复制

相似问题

问如何指定带音频下载视频的ydl选项？
EN

回答 1

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何指定带音频下载视频的ydl选项？EN

回答 1

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何指定带音频下载视频的ydl选项？
EN