Video
- Eitan Dvir
- Ramya Raman
- Andrew Lochbaum
Video table consists of Events and Thresholds associated with the Program Video.
| ID | Name | Event Error | Description |
38 | Black Frame Detection | Video Black Frame | When the content on a freeze-frame is very dark, it is a Black frame. |
43 | Detect Decoding Errors | Decoding Error | This event is triggered if there is a segmentation fault in a decoder process or unable to decode due to other reasons. Decoding errors could be caused due to errors in the content in the stream or other issues. |
49 | Black Frame with Logo Detection | Logo Frame | Black frame with a corner logo detected for a longer period of time than configured. |
59 | Freeze Frame | Freeze Frame | Freeze frame compares two frames, which may or may not be consecutive to ensure no change. |
60 | No Video | No Video | No video on input. |
84 | Video Bitrate, Max Threshold | Video BR above Max | Detected video bitrate is greater than the configured maximum threshold. |
85 | Video Bitrate, Min Threshold | Video BR below Min | The detected video bitrate is smaller than the configured minimum threshold. |
116 | Detect Color-Space Mismatch (ex, YUV422 instead of YUV420) | Color Space Mismatch | YUV420 is used by devices such as set-top boxes. The quality of the color is a quarter of the luminance of the video, and there is a latency between the luminance and color. |
117 | Detect Video Codec Profile/Level Mismatch | Video Codec Profile | Received video profile or level does not match configured values. |
118 | Detect Video Aspect-Ratio Mismatch | Aspect Ratio Mismatch | It's a comparison of the received error value vs. the configuration. |
119 | Detect Resolution Mismatch | Video Resolution Mismatch | The received resolution does not match the configured resolution. |
123 | Detect Frame Rate Mismatch | Frame Rate Mismatch | Received frame rate does not match the configured frame rate. |
124 | Detect Video Codec Mismatch | Video Codec Mismatch | Detected H.264 when MPEG-2 is configured or vice versa. |
134 | Missing SPS | SPS Missing | SPS is the sequence header and part of the payload. It provides details about the resolution and the frame. The Decoder cannot decode without SPS. Generally, SPS is sent only once for a few frames, either in a group or once in a while. |
172 | Video Blocking Detection - Scene | Video Blocking | Video blocking measurement for multiple frames (~20) is considered as a scene event. For the scene event, the Encoder B/W issues are examined. This is a relative measurement 0-100, where 0 is the best. |
173 | Video Blocking Detection - Peak | Frame Blocking | The measurement for a single frame is considered as a Peak event. The artifacts and errors in the content are examined. This is a relative measurement 0-100, where 0 is the best. |
229 | HDR SEI data | HDR SEI | HDR is the metadata that enables higher quality of color decoding. |
230 | HDR SEI data missing | HDR missing | This event is triggered when HDR info is missing. |
234 | Video PTS variance detection | Video PTS missing | PTS is the frame rate interval. The maximum, minimum intervals and the average value is measured within a second. These three values are expected to be the same. If not, the event is triggered. |
320 | Missing AFD | Missing AFD | AFD defines the aspect ratio of the content. |
321 | AFD Value Change | AFD Change | Every time the file has changed, a notification with a previous value and the new value is sent. |
374 | Video Color Bars detected | Video Bars | Video Color Bars test signal is detected in the program. |
To better set Threshold event levels for Video Blocking (172 and 173), operators can view the graph of Video Blocking in the channel information.
