Question / Help Webcam Randomly Dropping below 5FPS.

[Delcady]

Hello,

Occasionally when I'm streaming my webcam will suddenly jump to a very low FPS. To the point where it looks like I'm running a slideshow, I am using a logitech c920. I have provided a log from my last stream, I lost connection to OBS throughout the evening but it did reconnect. In order for me to fix the webcam issues I open the video capture deactivate it and then reactivate it and this suddenly fixes the issue. The problem seems to happen very rarely from when I'm in game to when I'm don't have a game open. I have no idea what is causing this problem. I have made sure to go through the FPS drops list, which is pinned.

1. 15:33:28.586: CPU Name: AMD FX(tm)-8350 Eight-Core Processor
2. 15:33:28.586: CPU Speed: 4000MHz
3. 15:33:28.586: Physical Cores: 4, Logical Cores: 8
4. 15:33:28.586: Physical Memory: 8173MB Total, 4646MB Free
5. 15:33:28.586: Windows Version: 10.0 Build 15063 (revision: 674; 64-bit)
6. 15:33:28.586: Running as administrator: true
7. 15:33:28.586: Aero is Enabled (Aero is always on for windows 8 and above)
8. 15:33:28.587: Portable mode: false
9. 15:33:28.602: OBS 20.1.0 (64bit, windows)
10. 15:33:28.602: ---------------------------------
11. 15:33:28.603: ---------------------------------
12. 15:33:28.603: audio settings reset:
13. 15:33:28.603: samples per sec: 44100
14. 15:33:28.603: speakers: 2
15. 15:33:28.605: ---------------------------------
16. 15:33:28.605: Initializing D3D11...
17. 15:33:28.605: Available Video Adapters:
18. 15:33:28.607: Adapter 1: AMD Radeon (TM) R7 370 Series Graphics
19. 15:33:28.607: Dedicated VRAM: 4276273152
20. 15:33:28.607: Shared VRAM: 4285294592
21. 15:33:28.607: output 1: pos={0, 0}, size={1920, 1080}, attached=true
22. 15:33:28.607: output 2: pos={1920, 0}, size={1680, 1050}, attached=true
23. 15:33:28.609: Loading up D3D11 on adapter AMD Radeon (TM) R7 370 Series Graphics (0)
24. 15:33:28.617: D3D11 loaded successfully, feature level used: 45056
25. 15:33:29.564: ---------------------------------
26. 15:33:29.564: video settings reset:
27. 15:33:29.564: base resolution: 1920x1080
28. 15:33:29.564: output resolution: 1280x720
29. 15:33:29.564: downscale filter: Bicubic
30. 15:33:29.564: fps: 30/1
31. 15:33:29.564: format: NV12
32. 15:33:29.566: Audio monitoring device:
33. 15:33:29.566: name: Default
34. 15:33:29.566: id: default
35. 15:33:29.568: ---------------------------------
36. 15:33:29.578: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/chrome_elf.dll' not found, loading of module failed
37. 15:33:29.637: [CoreAudio encoder]: Adding CoreAudio AAC encoder
38. 15:33:29.667: [AMF] Version 2.2.2 loaded (Compiled: 1.4.4.0, Runtime: 1.4.2.0, Library: 1;4;2;0;17.10.3211.1031;201707041820;CL#1429932).
39. 15:33:29.730: [AMF] <Id: 1> Unable to create H264/AVC encoder, error AMF_ENCODER_NOT_PRESENT (code 36)
40. 15:33:29.744: [AMF] <Id: 2> Unable to create H265/HEVC encoder, error AMF_FAIL (code 1)
41. 15:33:29.773: [AMF] <Id: 3> Unable to create H264/AVC encoder, error AMF_ENCODER_NOT_PRESENT (code 36)
42. 15:33:29.792: [AMF] <Id: 4> Unable to create H265/HEVC encoder, error AMF_FAIL (code 1)
43. 15:33:29.793: [AMF] [H264/AVC] Not supported by any GPU, disabling...
44. 15:33:29.793: [AMF] [H265/HEVC] Not supported by any GPU, disabling...
45. 15:33:29.867: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libcef.dll' not found, loading of module failed
46. 15:33:29.869: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libEGL.dll' not found, loading of module failed
47. 15:33:29.872: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libGLESv2.dll' not found, loading of module failed
48. 15:33:29.877: Failed to load 'en-US' text for module: 'obs-browser.dll'
49. 15:33:29.877: [browser_source: 'Version: 1.29.0']
50. 15:33:29.934: LoadLibrary failed for 'nvEncodeAPI64.dll': The specified module could not be found.
51. 15:33:29.934: (126)
52. 15:33:30.244: Couldn't find VLC installation, VLC video source disabled
53. 15:33:30.254: No blackmagic support
54. 15:33:30.459: ---------------------------------
55. 15:33:30.459: Loaded Modules:
56. 15:33:30.459: win-wasapi.dll
57. 15:33:30.459: win-mf.dll
58. 15:33:30.459: win-dshow.dll
59. 15:33:30.459: win-decklink.dll
60. 15:33:30.459: win-capture.dll
61. 15:33:30.459: vlc-video.dll
62. 15:33:30.459: text-freetype2.dll
63. 15:33:30.459: rtmp-services.dll
64. 15:33:30.459: obs-x264.dll
65. 15:33:30.459: obs-vst.dll
66. 15:33:30.459: obs-transitions.dll
67. 15:33:30.459: obs-text.dll
68. 15:33:30.459: obs-qsv11.dll
69. 15:33:30.459: obs-outputs.dll
70. 15:33:30.459: obs-filters.dll
71. 15:33:30.459: obs-ffmpeg.dll
72. 15:33:30.459: obs-browser.dll
73. 15:33:30.459: image-source.dll
74. 15:33:30.459: frontend-tools.dll
75. 15:33:30.459: enc-amf.dll
76. 15:33:30.459: coreaudio-encoder.dll
77. 15:33:30.459: ---------------------------------
78. 15:33:30.459: ==== Startup complete ===============================================
79. 15:33:30.509: All scene data cleared
80. 15:33:30.509: ------------------------------------------------
81. 15:33:30.550: WASAPI: Device 'Speakers (3- High Definition Audio Device)' initialized
82. 15:33:30.621: WASAPI: Device 'Microphone (HD Pro Webcam C920)' initialized
83. 15:33:30.681: adding 46 milliseconds of audio buffering, total audio buffering is now 46 milliseconds
84. 15:33:31.936: [Media Source 'Media Source']: settings:
85. 15:33:31.936: input: C:/Users/andre/Downloads/hello.m4v
86. 15:33:31.936: input_format: (null)
87. 15:33:31.936: is_looping: no
88. 15:33:31.936: is_hw_decoding: yes
89. 15:33:31.936: is_clear_on_media_end: yes
90. 15:33:31.936: restart_on_activate: yes
91. 15:33:31.936: close_when_inactive: no
92. 15:33:31.950: error: A non-intra slice in an IDR NAL unit.
93. 15:33:31.950: error: decode_slice_header error
94. 15:33:31.952: [Media Source 'Media Source 2']: settings:
95. 15:33:31.952: input: C:/Users/andre/Pictures/AndrewStartingSoon.gif
96. 15:33:31.952: input_format: (null)
97. 15:33:31.952: is_looping: yes
98. 15:33:31.952: is_hw_decoding: yes
99. 15:33:31.952: is_clear_on_media_end: no
100. 15:33:31.952: restart_on_activate: yes
101. 15:33:31.952: close_when_inactive: no
102. 15:33:31.986: error: A non-intra slice in an IDR NAL unit.
103. 15:33:31.986: error: decode_slice_header error
104. 15:33:31.997: Switched to scene 'Scene 2'
105. 15:33:32.002: ------------------------------------------------
106. 15:33:32.002: Loaded scenes:
107. 15:33:32.002: - scene 'Scene 2':
108. 15:33:32.002: - source: 'Game Capture' (game_capture)
109. 15:33:32.002: - source: 'Alerts' (browser_source)
110. 15:33:32.002: - source: 'cam' (dshow_input)
111. 15:33:32.002: - filter: 'Crop' (crop_filter)
112. 15:33:32.002: - source: 'Follows/Subs' (browser_source)
113. 15:33:32.002: - source: 'Nowplaying' (image_source)
114. 15:33:32.002: - source: 'Text (GDI+)' (text_gdiplus)
115. 15:33:32.002: - filter: 'Scroll' (scroll_filter)
116. 15:33:32.002: - scene 'BRB':
117. 15:33:32.002: - source: 'Media Source' (ffmpeg_source)
118. 15:33:32.002: - source: 'Image' (image_source)
119. 15:33:32.002: - scene 'Stream Starting':
120. 15:33:32.002: - source: 'Media Source 2' (ffmpeg_source)
121. 15:33:32.002: - filter: 'Scaling/Aspect Ratio' (scale_filter)
122. 15:33:32.002: - filter: 'Crop/Pad' (crop_filter)
123. 15:33:32.002: ------------------------------------------------
124. 15:33:32.078: ---------------------------------
125. 15:33:32.078: [DShow Device: 'cam'] settings updated:
126. 15:33:32.078: video device: Logitech HD Pro Webcam C920
127. 15:33:32.078: video path: \\?\usb#vid_046d&pid_082d&mi_00#8&244b8e41&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{bbefb6c7-2fc4-4139-bb8b-a58bba724083}
128. 15:33:32.078: resolution: 1280x720
129. 15:33:32.078: fps: 30.00 (interval: 333333)
130. 15:33:32.078: format: MJPEG
131. 15:33:32.117: using video device audio: no
132. 15:33:32.117: audio device: Microphone (3- High Definition Audio Device)
133. 15:33:32.117: sample rate: 44100
134. 15:33:32.117: channels: 2
135. 15:33:32.117: audio type: Capture
136. 15:33:32.118: DShow: HDevice::ConnectPins: failed to connect pins (0x80040207): The owner SID on a per-user subscription doesn't exist
137. 15:33:32.118:
138. 15:33:44.948: ---------------------------------
139. 15:33:44.948: [DShow Device: 'cam'] settings updated:
140. 15:33:44.948: video device: Logitech HD Pro Webcam C920
141. 15:33:44.948: video path: \\?\usb#vid_046d&pid_082d&mi_00#8&244b8e41&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{bbefb6c7-2fc4-4139-bb8b-a58bba724083}
142. 15:33:44.948: resolution: 1280x720
143. 15:33:44.948: fps: 30.00 (interval: 333333)
144. 15:33:44.948: format: MJPEG
145. 15:33:44.969: using video device audio: no
146. 15:33:44.969: audio device: Microphone (3- High Definition Audio Device)
147. 15:33:44.969: sample rate: 44100
148. 15:33:44.969: channels: 2
149. 15:33:44.969: audio type: Capture
150. 15:33:44.970: DShow: HDevice::ConnectPins: failed to connect pins (0x80040207): The owner SID on a per-user subscription doesn't exist
151. 15:33:44.970:
152. 15:33:49.175: ==== Shutting down ==================================================
153. 15:33:49.184: Switched to scene '(null)'
154. 15:33:49.297: WASAPI: Device 'Speakers (3- High Definition Audio Device)' Terminated
155. 15:33:49.302: WASAPI: Device 'Microphone (HD Pro Webcam C920)' Terminated
156. 15:33:49.328: All scene data cleared
157. 15:33:49.328: ------------------------------------------------
158. 15:33:49.368: Freeing OBS context data
159. 15:33:49.420: == Profiler Results =============================
160. 15:33:49.420: run_program_init: 3557.21 ms
161. 15:33:49.420: ┣OBSApp::AppInit: 15.673 ms
162. 15:33:49.420: ┃ ┗OBSApp::InitLocale: 1.52 ms
163. 15:33:49.420: ┗OBSApp::OBSInit: 3532.03 ms
164. 15:33:49.420: ┣obs_startup: 2.016 ms
165. 15:33:49.420: ┗OBSBasic::OBSInit: 3495.15 ms
166. 15:33:49.420: ┣OBSBasic::InitBasicConfig: 0.516 ms
167. 15:33:49.420: ┣OBSBasic::ResetAudio: 0.263 ms
168. 15:33:49.420: ┣OBSBasic::ResetVideo: 962.767 ms
169. 15:33:49.420: ┣OBSBasic::InitOBSCallbacks: 0.005 ms
170. 15:33:49.420: ┣OBSBasic::InitHotkeys: 1.106 ms
171. 15:33:49.420: ┣obs_load_all_modules: 891.068 ms
172. 15:33:49.420: ┃ ┣obs_init_module(coreaudio-encoder.dll): 57.467 ms
173. 15:33:49.420: ┃ ┣obs_init_module(enc-amf.dll): 146.115 ms
174. 15:33:49.420: ┃ ┣obs_init_module(frontend-tools.dll): 3.766 ms
175. 15:33:49.420: ┃ ┣obs_init_module(image-source.dll): 0.012 ms
176. 15:33:49.420: ┃ ┣obs_init_module(obs-browser.dll): 1.124 ms
177. 15:33:49.420: ┃ ┣obs_init_module(obs-ffmpeg.dll): 27.899 ms
178. 15:33:49.420: ┃ ┣obs_init_module(obs-filters.dll): 0.068 ms
179. 15:33:49.420: ┃ ┣obs_init_module(obs-outputs.dll): 0.016 ms
180. 15:33:49.420: ┃ ┣obs_init_module(obs-qsv11.dll): 246.715 ms
181. 15:33:49.420: ┃ ┣obs_init_module(obs-text.dll): 3.132 ms
182. 15:33:49.420: ┃ ┣obs_init_module(obs-transitions.dll): 0.005 ms
183. 15:33:49.420: ┃ ┣obs_init_module(obs-vst.dll): 0.001 ms
184. 15:33:49.420: ┃ ┣obs_init_module(obs-x264.dll): 0.001 ms
185. 15:33:49.420: ┃ ┣obs_init_module(rtmp-services.dll): 3.143 ms
186. 15:33:49.420: ┃ ┣obs_init_module(text-freetype2.dll): 0.197 ms
187. 15:33:49.420: ┃ ┣obs_init_module(vlc-video.dll): 0.035 ms
188. 15:33:49.420: ┃ ┣obs_init_module(win-capture.dll): 0.198 ms
189. 15:33:49.420: ┃ ┣obs_init_module(win-decklink.dll): 2.728 ms
190. 15:33:49.420: ┃ ┣obs_init_module(win-dshow.dll): 5.039 ms
191. 15:33:49.420: ┃ ┣obs_init_module(win-mf.dll): 171.879 ms
192. 15:33:49.420: ┃ ┣obs_init_module(win-wasapi.dll): 0.008 ms
193. 15:33:49.420: ┃ ┗reset_win32_symbol_paths: 0.193 ms
194. 15:33:49.420: ┣OBSBasic::ResetOutputs: 36.813 ms
195. 15:33:49.420: ┣OBSBasic::CreateHotkeys: 0.267 ms
196. 15:33:49.420: ┣OBSBasic::InitService: 1.977 ms
197. 15:33:49.420: ┣OBSBasic::InitPrimitives: 2.812 ms
198. 15:33:49.420: ┗OBSBasic::Load: 1501.04 ms
199. 15:33:49.420: obs_hotkey_thread(25 ms): min=0.003 ms, median=0.006 ms, max=7.019 ms, 99th percentile=0.07 ms, 100% below 25 ms
200. 15:33:49.420: audio_thread(Audio): min=0 ms, median=0.088 ms, max=11.729 ms, 99th percentile=0.681 ms
201. 15:33:49.420: obs_video_thread(33.3333 ms): min=0.428 ms, median=2.526 ms, max=1341.6 ms, 99th percentile=10.59 ms, 99.639% below 33.333 ms
202. 15:33:49.420: ┣tick_sources: min=0.001 ms, median=0.017 ms, max=1338.94 ms, 99th percentile=1.366 ms
203. 15:33:49.420: ┣render_displays: min=0.001 ms, median=1.895 ms, max=34.043 ms, 99th percentile=9.77 ms
204. 15:33:49.421: ┗output_frame: min=0.421 ms, median=0.606 ms, max=6.058 ms, 99th percentile=1.516 ms
205. 15:33:49.421: ┣gs_context(video->graphics): min=0.149 ms, median=0.228 ms, max=5.611 ms, 99th percentile=0.98 ms
206. 15:33:49.421: ┃ ┣render_video: min=0.045 ms, median=0.093 ms, max=0.61 ms, 99th percentile=0.384 ms
207. 15:33:49.421: ┃ ┃ ┣render_main_texture: min=0.003 ms, median=0.052 ms, max=0.595 ms, 99th percentile=0.279 ms
208. 15:33:49.421: ┃ ┃ ┣render_output_texture: min=0.004 ms, median=0.014 ms, max=0.329 ms, 99th percentile=0.053 ms
209. 15:33:49.421: ┃ ┃ ┣render_convert_texture: min=0.001 ms, median=0.015 ms, max=0.173 ms, 99th percentile=0.039 ms
210. 15:33:49.421: ┃ ┃ ┗stage_output_texture: min=0 ms, median=0.008 ms, max=0.201 ms, 99th percentile=0.026 ms
211. 15:33:49.421: ┃ ┣download_frame: min=0 ms, median=0.006 ms, max=3.18 ms, 99th percentile=0.025 ms
212. 15:33:49.421: ┃ ┗gs_flush: min=0.03 ms, median=0.125 ms, max=1.616 ms, 99th percentile=0.426 ms
213. 15:33:49.421: ┗output_video_data: min=0.294 ms, median=0.379 ms, max=1.207 ms, 99th percentile=0.858 ms
214. 15:33:49.421: video_thread(video): min=0.001 ms, median=0.001 ms, max=0.032 ms, 99th percentile=0.005 ms
215. 15:33:49.421: =================================================
216. 15:33:49.421: == Profiler Time Between Calls ==================
217. 15:33:49.421: obs_hotkey_thread(25 ms): min=24.225 ms, median=25.106 ms, max=43.398 ms, 66.3403% within ±2% of 25 ms (0.244798% lower, 33.4149% higher)
218. 15:33:49.421: obs_video_thread(33.3333 ms): min=25.577 ms, median=33.333 ms, max=1341.61 ms, 97.83% within ±2% of 33.333 ms (0.904159% lower, 1.26582% higher)
219. 15:33:49.421: =================================================
220. 15:33:49.436: Number of memory leaks: 17

I have included a second log, which went over into the next day as the stream was over 8 hours:

https://pastebin.com/tzHPdZB1

I have also included a highlight of what I mean -

https://www.twitch.tv/videos/184445798

Please let me know if you need anymore info, this issue is driving me mad :(

 

[Delcady]

Anyone :(?