app.py

import gradio as gr 
import yt_dlp
import os 
import json
from rembg import remove as rm
import cv2
import uuid
from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip
import moviepy.video.io.ImageSequenceClip

uid=uuid.uuid4()
if not os.path.exists(f'{uid}-frames'): os.makedirs(f'{uid}-frames')
if not os.path.exists(f'{uid}-rembg'): os.makedirs(f'{uid}-rembg')

load_js = """
function(text_input, url_params) {
    console.log(text_input, url_params);
    const params = new URLSearchParams(window.location.search);
    url_params = Object.fromEntries(params);
    return [text_input, url_params]
}
"""
def rem_cv(inp):
    cap = cv2.VideoCapture(f'{inp}')
    kernel = cv2.getStructuringElement(cv2.MORPH_ELLIPSE,(3,3))
    fgbg = cv2.bgsegm.createBackgroundSubtractorGMG()
    while True:
        ret, frame = cap.read()
        fgmask = fgbg.apply(frame)
        fgmask = cv2.morphologyEx(fgmask, cv2.MORPH_OPEN, kernel)
        yield (fgmask)

def load_video(vid):
    new_video_in = str(vid)
    capture = cv2.VideoCapture(new_video_in)
    fps = capture.get(cv2.CAP_PROP_FPS)
    #print (f'FPS:: {fps}')
    frame_count = int(capture.get(cv2.CAP_PROP_FRAME_COUNT))
    capture.release()
    return frame_count, fps

def capture_function(vid=None):
    new_video_in = str(vid)
    capture = cv2.VideoCapture(new_video_in)
    frame_count = int(capture.get(cv2.CAP_PROP_FRAME_COUNT))
    fbox=[]
    cnt=0
    frame_count1= int(frame_count)
    for i in range(int(frame_count1)):
        capture.set(cv2.CAP_PROP_POS_FRAMES, i)
        ret, frame_f = capture.read(i)
        frame_ff = cv2.cvtColor(frame_f, cv2.COLOR_BGR2RGB)
        cv2.imwrite(f'{uid}-frames/{i}.png',frame_ff)
        fbox.append(f'{uid}-frames/{i}.png')
    return fbox,fbox

def im_2_vid(images,fps):
    #width, height = Image.open(images[0]).size
    this_im=cv2.imread(images[0])
    height=this_im.shape[0]
    width= this_im.shape[1]
    print (width,height)
    size = (width, height)
    movie_clip = moviepy.video.io.ImageSequenceClip.ImageSequenceClip(images, fps)
    movie_clip.write_videofile(f'{uid}-rembg/bg_removed-{uid}.mp4')    
    #codec = cv2.VideoWriter_fourcc(*'mp4v') #DIVX, DIVD
    #video = cv2.VideoWriter("tmp_vid.mp4", codec, fps, size)
    #for img in images:
    #        video.write(img)
    
    
    return (f'{uid}-rembg/bg_removed-{uid}.mp4', f'{uid}-rembg/bg_removed-{uid}.mp4')
def rem_bg(vid):
    new_video_in = str(vid)
    capture = cv2.VideoCapture(new_video_in)    
    frame_count = int(capture.get(cv2.CAP_PROP_FRAME_COUNT))
    fps = capture.get(cv2.CAP_PROP_FPS)
    fbox2=[]
    cnt=0
    frame_count1= int(frame_count)
    for i in range(int(frame_count1)-1):
        capture.set(cv2.CAP_PROP_POS_FRAMES, i)
        ret, frame_f = capture.read(i)
        #frame_ff = cv2.cvtColor(frame_f, cv2.COLOR_BGR2RGB)
        out = rm(frame_f)
        print (i)
        cv2.imwrite(f'{uid}-rembg/{i}.png',out)
        fbox2.append(f'{uid}-rembg/{i}.png')
        frame_num=f'Working on {i+1} of {frame_count1-1}'
        yield fbox2,frame_num,None
    frame_num=f'Done: {i+1} of {frame_count1-1}'
    out_vid,_file = im_2_vid(fbox2, fps)
    yield (fbox2,frame_num,out_vid)


def predict(text, url_params):
    mod_url=""
    mod=gr.HTML("")
    out = None
    valid=gr.update(visible=False)
    mod_url = url_params.get('url')
    print (mod_url)
    return ["" + text + "", mod_url]

def dl(inp):
    out = None
    out_file=[]
    try:
        inp_out=inp.replace("https://","")
        inp_out=inp_out.replace("/","_").replace(".","_")
        os.system(f'yt-dlp "{inp}" --trim-filenames 100 -o "{inp_out}.mp4"')  
        out = f"{inp_out}.mp4"
    except Exception as e:
        print (e)
        out = None
    return out,out,out,out

def trim_vid(vid,start_time,end_time):
    print (vid)
    start_hr=int(start_time.split(":",2)[0])*360
    start_min=int(start_time.split(":",2)[1])*60
    start_sec=int(start_time.split(":",2)[2])
    end_hr=int(end_time.split(":",2)[0])*360
    end_min=int(end_time.split(":",2)[1])*60
    end_sec=int(end_time.split(":",2)[2])
    start=start_hr+start_min+start_sec
    end=end_hr+end_min+end_sec
    #vid = f"{uid}-tmp.mp4"
    ffmpeg_extract_subclip(vid, start, end, targetname=f"{uid}-clip.mp4")
    out= f"{uid}-clip.mp4"
    return out,out 
    
def other():    
    new_video_in = str(vid)
    capture = cv2.VideoCapture(new_video_in)    
    frame_count = int(capture.get(cv2.CAP_PROP_FRAME_COUNT))
    fps = capture.get(cv2.CAP_PROP_FPS)
    fbox3=[]
    frame_count1= int(frame_count)
    start = (int(fps*int(start_f)))
    capture.set(cv2.CAP_PROP_POS_FRAMES, i-1)
    for i in range(int(frame_count1)):
        capture.set(cv2.CAP_PROP_POS_FRAMES, i)
        ret, frame_f = capture.read(i)
        #frame_ff = cv2.cvtColor(frame_f, cv2.COLOR_BGR2RGB)
        out = rm(frame_f)
        print (i)
        cv2.imwrite(f'{uid}-rembg/{i}.png',out)
        fbox3.append(f'{uid}-rembg/{i}.png')
        frame_num=f'Working on {i+1} of {frame_count}'
        yield fbox2,frame_num,None    

with gr.Blocks() as app:
    with gr.Tab("Load"):
        with gr.Row():
            with gr.Column():
                inp_url = gr.Textbox()
                go_btn = gr.Button("Run")
                outp_vid=gr.Video(format="mp4")
            with gr.Column():
                with gr.Row():
                    frame_count=gr.Textbox(label="Frame Count",interactive = False)
                    fps=gr.Textbox(label="FPS",interactive = False)
                outp_file=gr.Files()
                with gr.Row():
                    start_f = gr.Textbox(label = "Start", value = "0:00:00", placeholder = "0:00:23")
                    end_f = gr.Textbox(label = "End", value = "0:00:05", placeholder = "0:00:54")
                trim_btn=gr.Button("Trim")
                out_trim=gr.Video(format="mp4")

    with gr.Tab("Frames"):
        frame_btn = gr.Button("Get Frames")
        with gr.Row():
            with gr.Column():
                frame_gal = gr.Gallery(columns=6)
            with gr.Column():
                frame_file = gr.Files()
        
    with gr.Tab("Rem BG"):
        with gr.Row():    
            with gr.Column():
                rem_btn=gr.Button()
                in_vid=gr.Video(format="mp4")
            with gr.Column():
                #rem_vid=gr.Video()
                frame_num=gr.Textbox(label="Progress")
                rem_vid=gr.Gallery(columns=6)
        rem_bg_vid=gr.Video()        
    with gr.Row(visible=False):
        text_input=gr.Textbox()
        text_output=gr.Textbox()
        url_params=gr.JSON()

    def echo_fn(inp):
        return inp 
    #outp_vid.change(echo_fn,outp_vid,[out_trim])
    trim_btn.click(trim_vid,[outp_vid,start_f,end_f],[out_trim,in_vid])
    outp_vid.change(load_video,outp_vid,[frame_count,fps]).then(echo_fn,outp_vid,[out_trim])
    frame_btn.click(capture_function,[out_trim],[frame_gal,frame_file])
    rem_btn.click(rem_bg,[out_trim],[rem_vid,frame_num,rem_bg_vid])
    go_btn.click(dl,inp_url,[outp_vid,outp_file,out_trim])
    app.load(fn=predict, inputs=[text_input,url_params], outputs=[text_output,text_input],_js=load_js)
app.launch()