Python VideoClip.tt方法代码示例

# 需要导入模块: from moviepy.video.VideoClip import VideoClip [as 别名]
# 或者: from moviepy.video.VideoClip.VideoClip import tt [as 别名]
def concatenate_videoclips(clips, method="chain", transition=None,
                           bg_color=None, ismask=False, padding = 0):
    """ Concatenates several video clips
    
    Returns a video clip made by clip by concatenating several video clips.
    (Concatenated means that they will be played one after another).
    
    There are two methods:

    - method="chain": will produce a clip that simply outputs
      the frames of the succesive clips, without any correction if they are
      not of the same size of anything. If none of the clips have masks the
      resulting clip has no mask, else the mask is a concatenation of masks
      (using completely opaque for clips that don't have masks, obviously).
      If you have clips of different size and you want to write directly the
      result of the concatenation to a file, use the method "compose" instead.

    - method="compose", if the clips do not have the same
      resolution, the final resolution will be such that no clip has
       to be resized.
       As a consequence the final clip has the height of the highest
       clip and the width of the widest clip of the list. All the
       clips with smaller dimensions will appear centered. The border
       will be transparent if mask=True, else it will be of the
       color specified by ``bg_color``.

    If all clips with a fps attribute have the same fps, it becomes the fps of
    the result.

    Parameters
    -----------

    clips
      A list of video clips which must all have their ``duration``
      attributes set.

    method
      "chain" or "compose": see above.

    transition
      A clip that will be played between each two clips of the list.
    
    bg_color
      Only for method='compose'. Color of the background.
      Set to None for a transparent clip
    
    padding
      Only for method='compose'. Duration during two consecutive clips.
      Note that for negative padding, a clip will partly play at the same
      time as the clip it follows (negative padding is cool for clips who fade
      in on one another). A non-null padding automatically sets the method to
      `compose`.
           
    """

    if transition is not None:
        l = [[v, transition] for v in clips[:-1]]
        clips = reduce(lambda x, y: x + y, l) + [clips[-1]]
        transition = None

    
    tt = np.cumsum([0] + [c.duration for c in clips])

    sizes = [v.size for v in clips]


    w = max([r[0] for r in sizes])
    h = max([r[1] for r in sizes])

    tt = np.maximum(0, tt + padding*np.arange(len(tt)))
    
    if method == "chain":
        def make_frame(t):
            i = max([i for i, e in enumerate(tt) if e <= t])
            return clips[i].get_frame(t - tt[i])
        
        result = VideoClip(ismask = ismask, make_frame = make_frame)
        if any([c.mask is not None for c in clips]):
            masks = [c.mask if (c.mask is not None) else
                     ColorClip([1,1], col=1, ismask=True, duration=c.duration)
                 #ColorClip(c.size, col=1, ismask=True).set_duration(c.duration)
                     for c in clips]
            result.mask = concatenate_videoclips(masks, method="chain", ismask=True)
            result.clips = clips


    elif method == "compose":
        result = CompositeVideoClip( [c.set_start(t).set_pos('center')
                                for (c, t) in zip(clips, tt)],
               size = (w, h), bg_color=bg_color, ismask=ismask)

    result.tt = tt
    
    result.start_times = tt[:-1]
    result.start, result.duration, result.end = 0, tt[-1] , tt[-1]
    
    audio_t = [(c.audio,t) for c,t in zip(clips,tt) if c.audio is not None]
    if len(audio_t)>0:
        result.audio = CompositeAudioClip([a.set_start(t)
                                for a,t in audio_t])
#.........这里部分代码省略.........

# 需要导入模块: from moviepy.video.VideoClip import VideoClip [as 别名]
# 或者: from moviepy.video.VideoClip.VideoClip import tt [as 别名]
def concatenate(clipslist, method = 'chain', transition=None,
           bg_color=(0, 0, 0), transparent=False, ismask=False, crossover = 0):
    """ Concatenates several video clips
    
    Returns a video clip made by clip by concatenating several video clips.
    (Concatenated means that they will be played one after another).
    if the clips do not have the same resolution, the final
    resolution will be such that no clip has to be resized. As
    a consequence the final clip has the height of the highest
    clip and the width of the widest clip of the list. All the
    clips with smaller dimensions will appear centered. The border
    will be transparent if mask=True, else it will be of the
    color specified by ``bg_color``.
    
    Returns a VideoClip instance if all clips have the same size and
    there is no transition, else a composite clip.
    
    Parameters
    -----------

    clipslist
      A list of video clips which must all have their ``duration``
      attributes set.
    
    transition
      A clip that will be played between each two clips of the list.  
    
    bg_color
      Color of the background, if any.

    transparent
      If True, the resulting clip's mask will be the concatenation of
      the masks of the clips in the list. If the clips do not have the
      same resolution, the border around the smaller clips will be
      transparent.
    
                       
    """
    
    if transition != None:
        l = [[v, transition] for v in clipslist[:-1]]
        clipslist = reduce(lambda x, y: x + y, l) + [clipslist[-1]]
        transition = None
    
    tt = np.cumsum([0] + [c.duration for c in clipslist])
    sizes = [v.size for v in clipslist]
    w = max([r[0] for r in sizes])
    h = max([r[1] for r in sizes])
    
    if method == 'chain':
        result = VideoClip(ismask = ismask)
        result.size = (w,h)

        def gf(t):
            i = max([i for i, e in enumerate(tt) if e <= t])
            return clipslist[i].get_frame(t - tt[i])
        
        result.get_frame = gf
        if (len(set(map(tuple,sizes)))>1) and (bg_color is not None):
            # If not all clips have the same size, flatten the result
            # on some color
            result = result.fx( on_color, (w,h), bg_color, 'center')
        
    elif method == 'compose':
        tt = np.maximum(0, tt - crossover*np.arange(len(tt)))
        result = concatenate( [c.set_start(t).set_pos('center')
                                    for (c, t) in zip(clipslist, tt)],
                   size = (w, h), bg_color=bg_color, ismask=ismask,
                   transparent=transparent)
    
    result.tt = tt
    result.clipslist = clipslist
    result.start_times = tt[:-1]
    result.start, result.duration, result.end = 0, tt[-1] , tt[-1]
    
    # Compute the mask if any
    
    if transparent and (not ismask):
        # add a mask to the clips which have none
        clips_withmask = [(c if (c.mask!=None) else c.add_mask())
                          for c in clipslist] 
        result.mask = concatenate([c.mask for c in clips_withmask],
                    bg_color=0, ismask=True, transparent=False)
                    
                    
    # Compute the audio, if any.
    
    audio_t = [(c.audio,t) for c,t in zip(clipslist,tt) if c.audio!=None]
    if len(audio_t)>0:
        result.audio = CompositeAudioClip([a.set_start(t)
                                for a,t in audio_t])
    return result

# 需要导入模块: from moviepy.video.VideoClip import VideoClip [as 别名]
# 或者: from moviepy.video.VideoClip.VideoClip import tt [as 别名]
def concatenate(clipslist, method="chain", transition=None, bg_color=(0, 0, 0),
                transparent=False, ismask=False, padding = 0):
    """ Concatenates several video clips
    
    Returns a video clip made by clip by concatenating several video clips.
    (Concatenated means that they will be played one after another).
    
    There are two methods: method="chain" will produce a clip that simply outputs
    the frames of the succesive clips, without any correction if they are
    not of the same size of anything.

    With method="compose", if the clips do not have the same
    resolution, the final resolution will be such that no clip has
    to be resized.
    As a consequence the final clip has the height of the highest
    clip and the width of the widest clip of the list. All the
    clips with smaller dimensions will appear centered. The border
    will be transparent if mask=True, else it will be of the
    color specified by ``bg_color``.

    Returns a VideoClip instance if all clips have the same size and
    there is no transition, else a composite clip.
    
    Parameters
    -----------

    clipslist
      A list of video clips which must all have their ``duration``
      attributes set.

    method
      "chain" or "compose": see above.

    transition
      A clip that will be played between each two clips of the list.  
    
    bg_color
      Color of the background, if any.

    transparent
      If True, the resulting clip's mask will be the concatenation of
      the masks of the clips in the list. If the clips do not have the
      same resolution, the border around the smaller clips will be
      transparent.

    padding
      Duration during two consecutive clips. If negative, a clip will
      play at the same time as the clip it follows. A non-null
      padding automatically sets the method to `compose`.
           
    """

    if transition != None:
        l = [[v, transition] for v in clipslist[:-1]]
        clipslist = reduce(lambda x, y: x + y, l) + [clipslist[-1]]
        transition = None

    
    tt = np.cumsum([0] + [c.duration for c in clipslist])

    sizes = [v.size for v in clipslist]


    w = max([r[0] for r in sizes])
    h = max([r[1] for r in sizes])

    tt = np.maximum(0, tt + padding*np.arange(len(tt)))
    
    if method == "chain":
        def gf(t):
            i = max([i for i, e in enumerate(tt) if e <= t])
            return clipslist[i].get_frame(t - tt[i])
            result.get_frame = gf
        result = VideoClip(ismask = ismask, get_frame = gf)
        if transparent:
          clips_w_masks = [(c.add_mask() if c.mask is None else c) for c in clips]
          masks = [c.mask for c in clips_w_masks]
          result.mask = concatenate(masks, method="chain", ismask=True)


    elif method == "compose":
        result = CompositeVideoClip( [c.set_start(t).set_pos('center')
                                for (c, t) in zip(clipslist, tt)],
               size = (w, h), bg_color=bg_color, ismask=ismask,
               transparent=transparent )

    result.tt = tt
    result.clipslist = clipslist
    result.start_times = tt[:-1]
    result.start, result.duration, result.end = 0, tt[-1] , tt[-1]
    
    audio_t = [(c.audio,t) for c,t in zip(clipslist,tt) if c.audio!=None]
    if len(audio_t)>0:
        result.audio = CompositeAudioClip([a.set_start(t)
                                for a,t in audio_t])
    return result