explicitly set timeout in steaming_annotate_video, and comment [(#2182)…

…](#2182)

videointelligence/samples/analyze/beta_snippets.py

@@ -327,7 +327,10 @@ def stream_generator():
     requests = stream_generator()
 
     # streaming_annotate_video returns a generator.
-    responses = client.streaming_annotate_video(requests)
+    # The default timeout is about 300 seconds.
+    # To process longer videos it should be set to
+    # larger than the length (in seconds) of the stream.
+    responses = client.streaming_annotate_video(requests, timeout=600)
 
     # Each response corresponds to about 1 second of video.
     for response in responses:
@@ -388,7 +391,10 @@ def stream_generator():
     requests = stream_generator()
 
     # streaming_annotate_video returns a generator.
-    responses = client.streaming_annotate_video(requests)
+    # The default timeout is about 300 seconds.
+    # To process longer videos it should be set to
+    # larger than the length (in seconds) of the stream.
+    responses = client.streaming_annotate_video(requests, timeout=600)
 
     # Each response corresponds to about 1 second of video.
     for response in responses:
@@ -445,7 +451,10 @@ def stream_generator():
     requests = stream_generator()
 
     # streaming_annotate_video returns a generator.
-    responses = client.streaming_annotate_video(requests)
+    # The default timeout is about 300 seconds.
+    # To process longer videos it should be set to
+    # larger than the length (in seconds) of the stream.
+    responses = client.streaming_annotate_video(requests, timeout=600)
 
     # Each response corresponds to about 1 second of video.
     for response in responses:
@@ -523,7 +532,10 @@ def stream_generator():
     requests = stream_generator()
 
     # streaming_annotate_video returns a generator.
-    responses = client.streaming_annotate_video(requests)
+    # The default timeout is about 300 seconds.
+    # To process longer videos it should be set to
+    # larger than the length (in seconds) of the stream.
+    responses = client.streaming_annotate_video(requests, timeout=600)
 
     # Each response corresponds to about 1 second of video.
     for response in responses:
@@ -589,7 +601,10 @@ def stream_generator():
     requests = stream_generator()
 
     # streaming_annotate_video returns a generator.
-    responses = client.streaming_annotate_video(requests)
+    # The default timeout is about 300 seconds.
+    # To process longer videos it should be set to
+    # larger than the length (in seconds) of the stream.
+    responses = client.streaming_annotate_video(requests, timeout=600)
 
     for response in responses:
         # Check for errors.