From 844e413a05e9657eb9a6c5c3151f9bb755392ba2 Mon Sep 17 00:00:00 2001
From: Zen <true.grenight@gmail.com>
Date: Wed, 6 Jan 2021 06:09:11 +0200
Subject: [PATCH] wip encoding queue

---
 av1an/manager/Queue.py | 101 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 97 insertions(+), 4 deletions(-)

diff --git a/av1an/manager/Queue.py b/av1an/manager/Queue.py
index 102d7b7..1a3ae1a 100644
--- a/av1an/manager/Queue.py
+++ b/av1an/manager/Queue.py
@@ -1,10 +1,103 @@
-
-
+import time
+import sys
+import concurrent
+import concurrent.futures
 from collections import deque
+from av1an.project.Project import Project
+from typing import List
+from av1an.target_quality import (per_frame_target_quality_routine,
+                                  per_shot_target_quality_routine)
+from av1an.encoder import ENCODERS
+from av1an.utils import frame_probe, terminate
+from av1an.resume import write_progress_file
+from av1an.chunk import Chunk
+from av1an.logger import log, set_log
+from pathlib import Path
+from .Pipes import tqdm_bar
+
 
 class Queue:
     """
     Queue manager with ability to add/remove/restart jobs
     """
-    def __init__(self, workers):
-        self.queue = deque(maxlen=workers)
\ No newline at end of file
+    def __init__(self, project, chunk_queue):
+        self.chunk_queue = chunk_queue
+        self.queue = []
+        self.project = project
+        self.thread_executor = concurrent.futures.ThreadPoolExecutor()
+
+    def is_empty(self):
+        return self.queue == []
+
+    def enqueue(self, chunk):
+        self.queue.insert(0,chunk)
+
+    def dequeue(self):
+        return self.queue.pop()
+
+    def size(self):
+        return len(self.queue)
+
+    def encoding_loop(self):
+        with concurrent.futures.ThreadPoolExecutor(max_workers=self.project.workers) as executor:
+            future_cmd = {executor.submit(self.encode_chunk, cmd): cmd for cmd in self.chunk_queue}
+            for future in concurrent.futures.as_completed(future_cmd):
+                try:
+                    future.result()
+                except Exception as exc:
+                    _, _, exc_tb = sys.exc_info()
+                    print(f'Encoding error {exc}\nAt line {exc_tb.tb_lineno}')
+                    terminate()
+        self.project.counter.close()
+
+
+    def encode_chunk(self, chunk: Chunk):
+        """
+        Encodes a chunk.
+
+        :param chunk: The chunk to encode
+        :param project: The cli project
+        :return: None
+        """
+        st_time = time.time()
+
+        chunk_frames = chunk.frames
+
+        log(f'Enc: {chunk.name}, {chunk_frames} fr\n\n')
+
+        # Target Quality Mode
+        if self.project.target_quality:
+            if self.project.target_quality_method == 'per_shot':
+                per_shot_target_quality_routine(self.project, chunk)
+            if self.project.target_quality_method == 'per_frame':
+                per_frame_target_quality_routine(self.project, chunk)
+
+        ENCODERS[self.project.encoder].on_before_chunk(self.project, chunk)
+
+        # skip first pass if reusing
+        start = 2 if self.project.reuse_first_pass and self.project.passes >= 2 else 1
+
+        # Run all passes for this chunk
+        for current_pass in range(start, self.project.passes + 1):
+            tqdm_bar(self.project, chunk, self.project.encoder, self.project.counter, chunk_frames, self.project.passes, current_pass)
+
+        ENCODERS[self.project.encoder].on_after_chunk(self.project, chunk)
+
+        # get the number of encoded frames, if no check assume it worked and encoded same number of frames
+        encoded_frames = chunk_frames if self.project.no_check else self.frame_check_output(chunk, chunk_frames)
+
+        # write this chunk as done if it encoded correctly
+        if encoded_frames == chunk_frames:
+            write_progress_file(Path(self.project.temp / 'done.json'), chunk, encoded_frames)
+
+        enc_time = round(time.time() - st_time, 2)
+        log(f'Done: {chunk.name} Fr: {encoded_frames}/{chunk_frames}\n'
+            f'Fps: {round(encoded_frames / enc_time, 4)} Time: {enc_time} sec.\n\n')
+
+    def frame_check_output(self, chunk: Chunk, expected_frames: int, last_chunk=False) -> int:
+        actual_frames = frame_probe(chunk.output_path)
+        if actual_frames != expected_frames:
+            msg = f':: Chunk #{chunk.name}: {actual_frames}/{expected_frames} fr'
+            log(msg)
+            print(msg)
+        return actual_frames
\ No newline at end of file