JP2011003962A5 - - Google Patents
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- JP2011003962A5 JP2011003962A5 JP2009143195A JP2009143195A JP2011003962A5 JP 2011003962 A5 JP2011003962 A5 JP 2011003962A5 JP 2009143195 A JP2009143195 A JP 2009143195A JP 2009143195 A JP2009143195 A JP 2009143195A JP 2011003962 A5 JP2011003962 A5 JP 2011003962A5
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この発明に係る請求項１記載の映像音声復号装置は、符号化された受信映像音声信号に対し、映像・音声を復号する信号復号処理を実行する信号復号部と、前記信号復号部による前記信号復号処理の実行制御処理である正規タスクを実行する制御部と、前記信号復号部及び前記制御部の動作内容に基づき、実行中の正規タスクの異常に関する異常情報を得る監視部とを備え、前記制御部は、前記受信映像音声信号に対し、少なくとも映像を復号する処理を有する縮退復号処理の実行制御処理である縮退タスクが実行可能であり、前記監視部が検出した前記異常情報に基づき、前記正規タスクに関する異常レベルが所定の異常レベル以上である判定した場合、異常が検出された前記正規タスクである異常タスクに代えて前記縮退タスクを実行し、前記正規タスクは所定のＣＰＵがメモリを使用して実行する少なくとも一つのソフトウェア処理によって実現され、前記信号復号部及び前記制御部の動作内容は、前記信号復号部の実行による前記信号復号処理における音声・映像の復号時のエラー発生状況、及び前記少なくとも一つのソフトウェア処理の処理状態を含んでいる。
According to a first aspect of the present invention, there is provided a video / audio decoding apparatus according to the first aspect, wherein a signal decoding unit that performs a video / audio decoding process on the encoded received video / audio signal, and the signal by the signal decoding unit. A control unit that executes a normal task that is an execution control process of the decoding process, and a monitoring unit that obtains abnormality information regarding an abnormality of the normal task being executed based on the operation contents of the signal decoding unit and the control unit, The control unit is capable of executing a degeneration task that is an execution control process of a degenerate decoding process having at least a process of decoding a video with respect to the received video / audio signal, and based on the abnormality information detected by the monitoring unit, If abnormal level on regular task determines at least a predetermined abnormal level, performs the degeneracy task instead of abnormal task is abnormal is detected the normal task The regular task is realized by at least one software process executed by a predetermined CPU using a memory, and the operation contents of the signal decoding unit and the control unit are voices in the signal decoding process executed by the signal decoding unit. It includes the error occurrence status during video decoding and the processing status of the at least one software process.
Claims (9)
前記信号復号部による前記信号復号処理の実行制御処理である正規タスクを実行する制御部と、
前記信号復号部及び前記制御部の動作内容に基づき、実行中の正規タスクの異常に関する異常情報を得る監視部とを備え、
前記制御部は、
前記受信映像音声信号に対し、少なくとも映像を復号する処理を有する縮退復号処理の実行制御処理である縮退タスクが実行可能であり、
前記監視部が検出した前記異常情報に基づき、前記正規タスクに関する異常レベルが所定の異常レベル以上である判定した場合、異常が検出された前記正規タスクである異常タスクに代えて前記縮退タスクを実行し、
前記正規タスクは所定のＣＰＵがメモリを使用して実行する少なくとも一つのソフトウェア処理によって実現され、
前記信号復号部及び前記制御部の動作内容は、前記信号復号部の実行による前記信号復号処理における音声・映像の復号時のエラー発生状況、及び前記少なくとも一つのソフトウェア処理の処理状態を含む、
映像音声復号装置。 A signal decoding unit that performs a signal decoding process for decoding video / audio with respect to the encoded received video / audio signal;
A control unit that executes a regular task that is an execution control process of the signal decoding process by the signal decoding unit;
Based on the operation contents of the signal decoding unit and the control unit, a monitoring unit that obtains abnormality information related to abnormality of the regular task being executed,
The controller is
For the received video / audio signal, a degeneration task that is an execution control process of a degenerate decoding process having a process of decoding at least a video can be executed,
Based on the abnormality information detected by the monitoring unit, when it is determined that an abnormality level related to the regular task is equal to or higher than a predetermined abnormality level, the degenerate task is executed instead of the abnormal task that is the regular task in which an abnormality is detected. And
The regular task is realized by at least one software process executed by a predetermined CPU using a memory,
The operation content of the signal decoding unit and the control unit includes an error occurrence state at the time of decoding audio / video in the signal decoding process executed by the signal decoding unit, and a processing state of the at least one software process.
Video / audio decoding device.
前記監視部は、検出した異常情報を異常履歴として所定の記録部に記録し、
前記異常情報は、前記所定の記録部に記録した過去の前記異常情報の履歴である異常履歴情報を含む、
映像音声復号装置。 The video / audio decoding device according to claim 1,
The monitoring unit records the detected abnormality information as a history of abnormality in a predetermined recording unit,
The abnormality information includes abnormality history information that is a history of the past abnormality information recorded in the predetermined recording unit,
Video / audio decoding device.
前記異常情報は異常発生の元になる前記正規タスクの部分的な処理を指示する情報を含み、
前記制御部は、
前記正規タスクの前記部分的な処理を再度実行させるリトライ制御処理がさらに実行可能であり、
前記監視部が検出した前記異常情報に基づき、前記正規タスクに関する異常レベルが前記所定の異常レベルも異常度合が低い低度異常レベルである判定した場合、前記リトライ制御処理を実行する、
映像音声復号装置。 The video / audio decoding device according to claim 1 or 2,
The abnormality information includes information instructing partial processing of the regular task that is the source of the abnormality,
The controller is
Retry control processing for executing again the partial processing of the regular task can be further executed,
Based on the abnormality information detected by the monitoring unit, when it is determined that the abnormality level related to the regular task is a low-level abnormality level with the predetermined abnormality level being low, the retry control process is executed.
Video / audio decoding device.
前記制御部は、
装置全体を再起動するリセット制御処理がさらに実行可能であり、
前記異常情報に基づき、前記正規タスクに関する異常レベルが前記所定の異常レベルであると判定した場合、前記異常タスクが正常に再開されるまで、前記縮退タスクを実行し、
前記異常情報に基づき、前記正規タスクに関する異常レベルが前記所定の異常レベルよりも異常度合が高い高度異常レベルであると判定した場合、前記リセット制御処理を実行しつつ、装置全体が再起動されるまでの期間、前記縮退タスクを実行する、
映像音声復号装置。 The video / audio decoding device according to any one of claims 1 to 3,
The controller is
A reset control process that restarts the entire device can be further executed,
If it is determined that the abnormal level related to the regular task is the predetermined abnormal level based on the abnormal information, the degenerate task is executed until the abnormal task is resumed normally,
Based on the abnormality information, when it is determined that the abnormality level related to the regular task is an advanced abnormality level having an abnormality degree higher than the predetermined abnormality level, the entire apparatus is restarted while executing the reset control process. Execute the degenerate task for a period of time until
Video / audio decoding device.
前記受信映像音声信号はスクランブルされたスクランブル信号を含み、
前記信号復号部は前記スクランブル信号をデスクランブル処理するデスクランブラを含み、
前記縮退復号処理は、前記スクランブル信号に対しデスクランブルする縮退用デスクランブル処理を含む、
映像音声復号装置。 The video / audio decoding device according to any one of claims 1 to 4,
The received video / audio signal includes a scrambled scrambled signal;
The signal decoding unit includes a descrambler that descrambles the scrambled signal,
The degeneracy decoding process includes a degeneration descrambling process for descrambling the scramble signal,
Video / audio decoding device.
前記信号復号部は前記デスクランブラ処理に必要な鍵情報を正規状態引継情報として所定の記憶部に逐次記憶し、
前記縮退復号処理は前記正規状態引継情報から前記鍵情報を取得して前記縮退用スクランブル処理を実行する、
映像音声復号装置。 The video / audio decoding device according to claim 5,
The signal decryption unit sequentially stores key information necessary for the descrambler processing in a predetermined storage unit as normal state takeover information,
The degenerate decryption process acquires the key information from the normal state takeover information and executes the degenerate scramble process;
Video / audio decoding device.
前記正規状態引継情報は同一内容の複数の正規状態引継情報を含み、前記複数の正規状態引継情報はそれぞれ異なる記録領域に保存される、
映像音声復号装置。 The video / audio decoding device according to claim 6,
The normal state takeover information includes a plurality of normal state takeover information of the same content, and the plurality of normal state takeover information is stored in different recording areas, respectively.
Video / audio decoding device.
前記縮退復号処理は、前記受信映像音声信号に基づく字幕信号の復号処理を含み、
前記縮退復号処理は、前記異常タスクであると判定された正規タスクが音声タスクの場合、前記音声信号の復号に代えて字幕信号の復号を行う、
映像音声復号装置。 The video / audio decoding device according to any one of claims 1 to 7,
The degenerate decoding process includes a decoding process of a caption signal based on the received video / audio signal,
In the degenerate decoding process, when the regular task determined to be the abnormal task is an audio task, the subtitle signal is decoded instead of the audio signal.
Video / audio decoding device.
(a)通常時に、前記信号復号部による前記信号復号処理の実行制御処理である正規タスクを実行させるステップと、
(b)前記信号復号部及び前記ステップ(a)の動作内容に基づき、実行中の正規タスクの異常に関する異常情報を得るステップと、
(c)前記ステップ(b)で検出した前記異常情報に基づき、前記正規タスクに関する異常レベルが所定の異常レベル以上である判定した場合、前記ステップ(a)の処理を停止させ、代わりに縮退タスクを実行するステップとを備え、前記縮退タスクは、前記受信映像音声信号から少なくとも映像信号に復号する処理を有する縮退復号処理の実行制御処理を含み、
前記正規タスクは所定のＣＰＵがメモリを使用して実行する少なくとも一つのソフトウェア処理によって実現され、
前記ステップ(a) の動作内容は、前記信号復号部の実行による前記信号復号処理における前記音声・映像信号復号時のエラー発生状況、及び前記少なくとも一つのソフトウェア処理の処理状態を含む、
映像音声復号方法。 A video / audio decoding method in a video / audio decoding apparatus having a signal decoding unit that executes a signal decoding process for decoding video / audio with respect to an encoded received video / audio signal,
(a) executing a regular task that is an execution control process of the signal decoding process by the signal decoding unit at a normal time;
(b) Based on the operation content of the signal decoding unit and the step (a), obtaining abnormal information regarding abnormality of the regular task being executed;
(c) Based on the abnormality information detected in the step (b), when it is determined that the abnormality level related to the regular task is equal to or higher than a predetermined abnormality level, the processing of the step (a) is stopped, and instead the degenerate task The degeneration task includes an execution control process of a degenerate decoding process including a process of decoding the received video / audio signal into at least a video signal,
The regular task is realized by at least one software process executed by a predetermined CPU using a memory,
The operation content of the step (a) includes an error occurrence situation at the time of decoding the audio / video signal in the signal decoding process by the execution of the signal decoding unit, and a processing state of the at least one software process.
Video / audio decoding method .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009143195A JP2011003962A (en) | 2009-06-16 | 2009-06-16 | Video voice decoder and video voice decoding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009143195A JP2011003962A (en) | 2009-06-16 | 2009-06-16 | Video voice decoder and video voice decoding method |
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| Publication Number | Publication Date |
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| JP2011003962A JP2011003962A (en) | 2011-01-06 |
| JP2011003962A5 true JP2011003962A5 (en) | 2012-07-26 |
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| JP2009143195A Pending JP2011003962A (en) | 2009-06-16 | 2009-06-16 | Video voice decoder and video voice decoding method |
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| JP6923177B2 (en) * | 2017-12-05 | 2021-08-18 | Ｔｖｓ Ｒｅｇｚａ株式会社 | Broadcast receiving device and broadcasting receiving method |
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| JPH10214208A (en) * | 1997-01-31 | 1998-08-11 | Meidensha Corp | System for monitoring abnormality of software |
| JP2003115775A (en) * | 2001-10-09 | 2003-04-18 | Matsushita Electric Ind Co Ltd | Digital broadcast receiver |
| JP4453367B2 (en) * | 2004-01-13 | 2010-04-21 | カシオ計算機株式会社 | TV broadcast receiver |
| JP2006085324A (en) * | 2004-09-15 | 2006-03-30 | Hitachi Ltd | Replication system |
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