200840356 九、發明說明： 【發明所屬之技術領域】 本發明係與數位錄影技術有關，尤指一種使用於數位錄影裝 置中之影像播放方法。 【先前技術】 在個人電腦或是其他數位資料處理及儲存的系統當中，均 需採用特定的檔案系統（file system)來進行其儲存空間之配置 及存取嘗理，目别車父常見的標案系統包含有如FATU (扒化200840356 IX. INSTRUCTIONS: [Technical Field of the Invention] The present invention relates to digital video technology, and more particularly to an image playback method for use in a digital video recording device. [Prior Art] In a personal computer or other digital data processing and storage system, a specific file system is needed to configure and access the storage space. The case system contains such as FATU
Allocation Table 32-bit version) ^ NTFS (New Technology File System)等規格。其中，符合湖2觀系統規格的標案，係 具有一 4Gbyte的職大小描，在過去這樣的難大小上限並 不會造成太多_儲存及讀取上_擾，畢竟在駐的電腦或資 訊商品的應用中’鮮少會發生單―個權案即包含有超過 4Gbyte之資料量的情形。 運算能力愈 來愈強 隨著半導體麟的進步，各種電子產品的處理 ，儲存m的單崎讀低，使得各 量資料成材能，因輯存及處理大 4個趨勢，其中發展最為_的領域即在 6 200840356 於多媒體影音規格方面，例如在影像規格上，即從過去的枳準圭 質（standard definition，SD)影像，發展到目前已經漸趨普遍的 同畫貝（highdefinition，HD)影像’而在硬體方面，則有儲如數 位電視（τν)、數位機上盒（set top b〇x，STB)、及數位°錄 影機（digital video recorder，DVR)等產品的問世，這些發展均 係挾科技發展讀，希魏解給視聽者更制概經驗及更便 利的使用模式。然而在這樣的發展趨勢中，如FAT32構案系統 對單-觀大小設有上限的情形即會造成職管理的不便以及 視聽旱受上的不悅’這是由於依照目前及未來的多媒體影音格 式’影音資驗存後所產生的:祕量_超過十數说辦， 而導致屬於同—内容的影音資訊（例如同-部電影）勢必得以複 數们個別的；}田案來進行儲存，導致槽案管理不便及讀取困難。同 樣的狀況也會發生在雜魏猶或是其他射雜影音處理 技術中，例如DivX 1Gbyte的大小上限， 影像編碼技術所產生之壓縮檔案即具有 同樣地也會造成如上述一般相同的結果。 目刖的數位影像裝置，如數位錄影機、朗建數位錄影及 播放力i之數位機上金或數位電卿產品，於欲減先前所錄 製、或是自他處下載下來的複數個具有大小上限 、但是實則為同 200840356 一内谷（如同—部電影）之影像檔案時，其所採取的方法僅只於 在播放完-倾案的時候’躺依照檔名字母順序之下一個構案 為何亚進仃_案之自賴放，這種處理方式實際上並非將屬於 同-内容之難作群減之_，故如果域名字调序在同_ 内容之複數靖案之間係存在—非屬於該内容的額外檔案，該系 統將無法將之排除而仍行播放;在欲對同-内容(如同—部電影） 進行循標（seeking)時，其循標的範圍也只能及於目前所播放的 檀案範_，而無法進行跨檔案之循標操作；而在結束前一權案 之播放與’下-觀之餘之間所產生之無可避免的影音停 頓及不連續，更是造成視聽者視聽經驗不佳的主因之一。 【發明内容】 因此’本發明的目的之-即在於提供一種數位影像裳置及 影像播放方法，其係將屬於同-内容之複數域案的相關資訊以 一資料結構進行紀錄，以達到順暢地播放影像的目的。 依據本發明之實施例，其係揭露一種數位錄影裝置，其包 含有一儲存裝置；一處理電路，耗接於該儲存裝置，用來接收 視訊訊號，並將該視訊訊號以複數個影像檔案的形式儲疒於* 200840356 =置中’以及用來產生—索弓丨資料結構’該索引資料結構係包 =數«料，分觸應於繼個影像槽案；以及一顯示裝 —^㈣贿個影像髓之視訊内 於齡該視軸料，减理電料依據―時間計數值 ==丨狐结魏行麟狀較，《枝所欲讀取之該複數個 邊⑽m版糊1輪中之_第_ 位置。 人康本^月之只知例’其另揭露-種數位影像系統，其包 有储存^置，用來儲存複數個影像檔案；一第一邏輯，轉接 二^存錢’用來維持—索引資料結構，該索引資料結構係包 S有複數筆資料，分別對應於該複數個影像職；以及—顯示裝 於該第-邏輯’用來自該第—邏輯接收並顯示該複數個 以像仏案之視訊内容；其中於顯示該視訊内容時，該第—邏輯係 依據日_植值對該索引資料結構進行麟及比較，以決定所 欲讀取之該複數個影像職中之-第-影像職以及該第—影 像檔案中之一第一位置。 〜 依據本發明之實施例，其更揭露一種影像播放方法，其包 9 200840356 含有產生一索引資料結構，其中該索弓丨資料結構係包含有複數筆 資料，分別對應於複數個影像檔案；維持一時間計數值，其中該 日守間5十數值係對應於所欲顯示之一視訊内容；依據該時間計數值 對該索引資料結構進行搜尋及比較’以決定所欲讀取之該複數個 影像檔案中之一第一影像檔案以及該第一影像檔案中之一第一 位置；以及讀取該第一影像檔案中之該第一位置，以顯示該視訊 内容。 【實施方式】 以下於進行本發明之實施例的說明時，係以數位錄影機及/ 或其中所包含之主要元件即數位錄影㈣晶片（dvr _福^ chip)為例來進行說明，但是熟習此領域技術的人應可理解，本 發明的應用領域並不以此為限，其他具有數位錄影/播放功能或 疋内建有上述數位錄影㈣晶狀綠影像裝置，如數位機上 盒、數位電視、遊戲主機料，乃至於其他有連續播放屬於同一 内容之複數個難之需求的電子/多媒體產品，均可採用本發明 之方法。 明蒼閱第1圖’其係顯示依據本發明—實施例之數位影像系 200840356 統（例如一數位錄影機、一數位機上盒、—數位電視、一遊戲主 機、前述各種裝置所内含之控制晶片、或是其他裝置或產品或其 控制晶片）的示意圖。於第1圖中，一數位影像裝置1〇〇之主要 構成元件係包含有一電視解碼器（TV decoder) 110、一微處理 裔120、及一電視編碼器（TVenc〇der) 13〇，在此須注意的是， 除了上述主要構成元件之外，數位影像裝置100更可依照應用領 域的不同，而另外包含有其他構成元件，諸如音訊輸出入介面、 乙太網路模組、IEEE1394介面、USB介面、DDR控制模組、快 閃記憶體控制模組、各種周邊介面模組（如Gpi〇、UART、i2c) 等等，由於這些元件並非本發明之重點，故將不在此贅述。 於本實施例中，數位影像裝置1〇〇係透過電視解碼器11〇 耦接於一影音資料源14〇 (例如透過網路傳送過來的影音串流、 或疋來自於局端的電視訊號），以接收來自於影音資料源1恥之 一視訊訊號。電視解碼器H0係用來對於所接收進來的視訊訊號 進仃解碼操作，例如將位於基頻之類比NTSC、pAL、及/或 SECAM視訊訊號解碼為數位YUV4:2:2的資料格式，於本實施 例中，電視解碼器i 10係包含有四組1〇位元之類比數位轉換器， 二匕έ有2D及3D梳形濾波器（c〇m|3 filter)以進行亮度/彩度 200840356 * 分離處理（YC separation)。微處理器120係耦接於電視解碼界 110、電視編碼器130、以及一大量資料儲存裝置，例如一硬碟 150，微處理器12〇係用來對電視解碼器110解碼後之視訊訊號 進行處理，並對硬碟150進行存取，以將處理後之視訊訊號傳送 至電視編碼器130,於本實施例中，微處理器12〇係由一個或多 個數位訊號處理（digital signal processing)電路及/或微處理電路 丨， (諸如MIPS)所組成。電視編碼器13〇則耦接於一顯示裝置16〇 (例如電視或一顯示器之平面顯示螢幕），用來對於經過微處 理器120處理後之視訊訊號進行編碼操作，例如將數位cR_y_cb 4:2:2格式之視訊資料編碼為各種標準電視訊號，如NTSC、PAL CVBS、S-video訊號、個別之yuv或RGB輸出訊號等等，於 本實例中，電視編碼H 13()係包含有六個12位元之數位類比轉 ， 換器。 明參閱第2圖，其係顯示依據本發明一實施例，第丨圖中 〜像衣置100播放所接收進來的視訊資料之處理路徑示 回/於第2圖中，各個方塊中所表示者係為第1圖中各個元件 ' 处理或彳木作，將於以下詳細說明。在數位影像裝置100 。日貝料源140之處接收視訊訊號之後，首先會利用電視解碼 12 200840356 為210進行一電視解碼操作2i〇，其操作内容如前所述，待電視 解碼操作210完成之後，電視解碼器21〇會將解碼操作後之視訊 訊號傳送至微處理器120之處，微處理器12〇則會先對該視訊訊 #u進行-視訊前置處理222，-般來說，前置處理(pre_pr〇cessing) 係會對視訊訊號精舰操作錢其他影像處職作，以將傳送 過程中所致生之祕縣減輕韻除。而在前置處理之後，視訊 訊號則會分別進入兩個不同的處理路徑，於第_路徑中，經過前 置處理後的視舰號會直接被傳送至電視編碼^⑽之處，以進 行一電視編碼操作23〇，其操作内容如前所述，而編碼操作後之 視職號則再被傳送至顯示裝置16〇之處進行播放操作26〇。而 於2 一路從中，經過前置處理後的視訊訊號另外會再同樣由微處 進仃MPEG2編碼操作、或其他資料壓縮操作，以對 其資料量進行壓縮，以利儲存於硬碟15〇當中（即視訊資料儲存 插作250) ’在有需要的時機點(以下將舉例說明) 的壓縮資料則會被讀取出 破儲存 饭貝取出來，由微處理器12〇對之 EG2解碼知作226，以還原為壓縮前之視訊訊號，再將解壓 之視^歧電視編碼操作23G及播放操作260之處理， 13 200840356 在此須注意的是，微處理器120在第二路徑中對視訊訊號 進行壓縮以利其儲存的同時，亦會對所儲存下來之視訊訊號加上 時間印記（timestamp)，以方便數位影像裝置1〇〇識別每部份影 像所位於之日輒點。於視訊訊财加人日_印記之技術係為熟習 此項技術的人所廣泛悉知者，故其細節將不在此贅述。 如别所述，本發明之實施例不似傳統之處理方式僅能以自 儲存衣置巾將先^儲細來之視訊資料讀取出來再行播放的做 法’將會導致有觀賞即時内容咖⑽顧）需求的使用者必須 忍受’著的時間上遲延（甚至可能長達數秒），_提供一視 祕就處理路徑（㈣述之第—雜），其在對視訊訊號進行一 前置處理後，在未經歷壓縮編碼操作·〉寫入硬碟_>讀取硬碟解 堡縮解碼#作的情形下，直接將視訊訊號輸出播放，以確保使用 者月b夠觀貝到「真正即時」的視訊内容，而不需忍受因為壓縮編 解碼知作及存取硬碟所花費的額外時間。這樣的功能，於使用者 ;守收視的而求非常在意的情形下（例如觀賞現場的運動賽 事、或是首_影），制具有顯著意義。 本I明之實施例除了提供即時播放的第一路徑之外，仍然提 14 200840356 供對前置處理後之視訊訊號進行壓縮及儲存之第二路徑，這是考 星使用者除了有收視即時内容的需求之外，同時也會有隨時暫停 收視再重新播放及/或對於已經播放過之内容進行倒轉（rewind) 或搜哥（seeking)的需求。舉例來說，當一使用者在觀賞一即時 内容的過程中，於暫停收視（例如按下暫停鈕「PAUSE」）一段 柃間之後打异繼續收視時，若其不希望錯失該内容中任何一刻的 細節，則可對數位影像裝置進行適當的操作（例如再按下再生鈕 「PLAY」），此時微處理器12〇即會產生一相對應之控制訊號 以k取（以多工裔228表示）自硬碟150中讀取出來並 經過MPEG2解碼㈣後之視龍號，以使得_放&來之影像 係緊接著先前暫料之内容。地，當—制者有對於已經播 ^過之内容進行倒轉（rewind)或搜尋（微㈣）的需求時，其 可對數位影像裝置進行適當的操作(例如按下倒轉紐「REWIND」 歧操作飛梭旋紐「shuttle」），鱗微處理器㈣即會產生」 一相對應之控制訊號CTRL，以選取自硬碟⑼中讀取出來並經 、MPEG2解碼操倾之視訊職，並舰細者之操作所對應 之守間點’輸出具有正確時間印記之播放内容。 在上述各種操作之餘，使用者亦可隨時選擇回到最 15 200840356 . _内容之收視，只要加崎當的操作（例如按下即時播放鈕 「腦」）’此時微處理器12〇即會產生一相對應之控制訊號 CTRL ’以再知取輕處理制產生、未經魏及儲存之視訊 訊號，而再次即時播放内容。 在此應庄思的疋，雖然於上述實施例中，電視解碼操作2⑴ 及私視、、扁馬“作23〇係分別以專用（祕⑽⑷之電視解碼器電 路及電視編碼☆電路在實現，而視訊前置處理222、啦編 碼“作、及MPEG2解碼操作係由微處理器uo配合軟體或軔體 私式碼之運算來實現，但是熟習此項技術者均應理解，本發明並 不以此為限’上述各項處理操作及所提供之功能均能以專用硬體 電路、軟體程式碼、或是以上二者之混合搭配來實作。再者，雖 祕本實施例中，數位影像裝置漏係包含有用來將類比視訊訊 號轉換成數位視訊訊號之電視解碼器11〇及用來將數位視訊訊 號轉換成數位視訊訊號之電視編碼II⑽，但是本發明並不以此 為限’於影音貢料源14〇所傳送過來之視訊訊號原本就是數位格 式的情形下，電視解碼H 11G即非必要元件，而於後端之顯示裝 置16〇具有數位訊號介面而能夠接受數位視訊訊號的情形下，電 * 視編碼器、130亦非必要元件。至於儲存裝置150，於本實施例中 16 200840356 雖然以喊或外接於數位影健置UK)之硬碟為例，但是本發明 並不以此為PH ’其他諸如透賴路連接之賴設備，亦為其一 例。又雖然於本實施例中，數位影像裝置i⑻於對視訊訊號進行 儲存時會先對其進行影像難，叫省存取頻寬·存空間，但 本兔月並不以此為限，於其他實施例中，亦可不對視訊訊號進 行壓縮而直接將之儲存至儲存裝置150中。 睛再茶閱第3 ® ’其軸示數位影職置⑽儲存於硬碟 ⑼中、或是經由網路或其他龍源所接收下來，屬於同一内容 (如同-部電影）之複數個影像檔案的示意圖。如第3圖所示， 屬於同-内容之—視蹄難触相存成五個職，分別為 2Gbyte 之「video.〇〇1」、娜加之「vide〇〇〇2」、〇观加之 「_〇施」、2Gbyte之「videG._」、咖％之「㈣⑺〇〇5」， 其中videaGG2中所儲存之資訊，係為於内容時間順序上接續在 video.001之後者，而videa⑻3中所儲存之資訊，係為於内容時 間順序上接、_在vKleaGG2之後者，其餘以此類推。該視訊資料 之所以會被儲存成複數個赌，可能是因為所使用之檔案系統 (如FAT32)、或是所使用的編碼技術（如心幻對單一槽案大 小所加之限制所致。而該複數個檔案，可能是從資料源傳送過來 17 200840356 的時候（例如透過網路傳送）即呈現個別槽案的形式、或是在微 處理器120進行壓縮編碼的時候’始麵咖序被_儲存成複 數個個別檔案，而被儲存在硬碟150當中。 於本發明之實施例中，數位影料置⑽在接收或形成上 述複數侧於同-内容之影像檔案時，除了將上述各個影像播幸 儲存於硬碟15〇巾之外’更會產生並儲存—用來指㈣些影像槽 案之索引資料結構（index data structure)，如第4圖所示，其係 顯示依據本發明一實施例之索引資料結構4〇〇與上述影像檔案 之間之對應_的示賴。於第4圖中，索引f料結構係包 含有複數筆資料（entry)，其中每-筆資料係分別對應於前述複 數個影像檔案其中之一，例如第一筆資料41〇係對應於 video— ’第二筆資料420係對應於videos，其餘以此類推。 請再參閱第5圖，其係顯示依據本發明一實施例，第4圖中之索 引資料結構400中所包含之内容的示意圖。於索引資料結構4〇〇 中，對應於每一筆資料，其係包含有一「檔案名稱」襴位46Q、 一「檔案大小」襴位470、以及選擇性地包含有一「累計槽案大 小」欄位480。 18 200840356 其中’「檔案名稱」欄位460係用來依照該視訊資料内容的 時間上順序’指示每—個個職案的檐名，例如於第5圖中，第 筆資料之指案名稱」欄位係為「vide〇〇〇i」，第二筆資料之 福案名稱」攔位係為「videa〇()2」，依此類推，第五筆資料之 「檔案名稱」欄位則為「video.005」。「槽案大小」搁位則用 來指示每-筆資射相對應之槽案名稱的_大小為何，例如於 第5圖中，第-筆資料之「檔案大小」欄位係為video001之大 小即2Gbyte ’第二筆資料之「槽案大小」攔位係為vid的撕之 大小即1Gbyte ’依此齡，第五筆㈣之「檔案大小」攔位則 為_α〇05之大小即1Gbyte。而如果選擇採用「累計檀案大小」 攔位的話，則該攔位係用來儲存自第一筆資料以來累計之構 案大小為何’例如於第5圖中，「科_大小」攔位依序儲存 2Gbyte > 3Gbyte > 3.5Gbyte > 5.5Gbyte ^ 6.5Gbyte 〇 於本實施例中，數位影像裝置1〇〇會於適當的時機點，例 如初始化時、狀__難目錄（fUe 時，對所 儲存之影像難進行搜尋，依照搜尋的結果找出具有同樣槽案特 被之各域案⑽咏本纽财，財_為「娜。」之槽 案），再將這些漏的相關資訊填入其所產生之索引資料結構 19 200840356 4⑻中’並糊:_#構·暫存於—記憶空間當中（例如一 鑛隨機存取記憶體，未顯示於財）。然而此處所揭露之引索 貧枓結構產生及轉方法並非本翻之_條件，其他熟習此項 技術的人·知__引索f料結纽轉方法，亦可應 用於本U田中’例如，該索引資料結構亦可以—檔案之形式被 儲存起來。再者，本實施例中之索引資料結構·中除了包含有 如上所述各侧位之:雜之外，更可再包含杨所減進來者之 訊號格式（例如其為職或PAL)、視訊位元率（vide。**)、 視訊長度（例如多少時間或多少侧框）等資訊，以利播放時之 搜尋定位之用。 由於依照本發明之實施例的數位影像裝置100係產生並維 持如第5圖所示之索引資料結構400，數位影像裝置1〇〇將可藉 由讀取索引資料結構400中所儲存的資訊，加上簡單的索引運 算，即可十分迅速地找到目前所欲播放的視訊内容係位於該些複 數個影像檔案當中的哪一個檔案的哪一個位置，然後再存取所指 定到的該檔案的該位置，以正確地播放該視訊内容。請參閱第6 圖，其係顯示依照本發明一實施例，操作數位影像裝置1〇〇時所 播放之視訊内容與該複數個影像檔案之間之對應關係示意圖。於 20 200840356 第6圖中，係顯示數位影像裝置100之操作介面51〇、遠端操作 ”面520、以及顯不晝面530 ’而於本實施例中，操作介面51〇 係包含有控制視訊播放所常見的操作功能，例如「再生」（play)、 「倒轉」（rewind)、「快轉」（fast forward)等按鈕、或是其他功 旎，而遠端操作介面520 (例如一遙控器）上，除了如前所述之 各種操作鈕之外’更包含有一可以用來快速尋找到所欲觀賞之視 訊内容片段的飛梭旋鈕（shuttle)。於第6圖中，更顯示了一時 間軸橫桿（timebar) 540 ’須注意的是，時間軸橫桿54〇可以是 貝際上屬於數位影像裝置100之播放操作介面的一部分，而可以 被施以拖氧操作（drag)以決定所欲播放_容時間點，或者其 亦可僅於本K⑻例巾用來代表所播放之視訊内容的時間指標 (time index)，而並未被實際上顯示於操作介面中。 〜當所欲減之視_容被正的日輪（例如#使用者 知下再生la) ’數位影像裝置丨㈣卩會持續轉—時間計數值， 用來指示目前正在播放之内容時間點，藉由不斷地遞增該時間計 數值’該視制容即得以被依序播放出來。由於該視訊内容之播 放時間點與該些影像職中所儲存的資料位置之間有一對應關 係，如第6圖中所示，用來作為時間指標的時間轴橫桿54〇及用 21 200840356 來表示各個槽案中之資料位置的内容指標（⑽tem55〇 係具有一一對應之關係。因此，數位影像裝置100所維持之該時 間計數值即可被換算為所對應之資料位置，而再經㈣第$圖中 之索引資料結構400進行搜尋及比較，即可決定目前正在播放的 時間點’其視訊内容係為於該複數個影像檔案中之哪一個檔案裏 的哪一個位置。 舉例來說，若使用者按下再生鈕時，所播放的時間點係位 於該視訊内容的-小時二十五分之處，朗時間點續料量的轉 換、以及對索引資料結構400的搜尋及比較（例如對「檔案大小」 搁位470進行搜尋及比較）之後，可以得到目前的時間點所對應 到的資料位置係位於（2Gbyte+ lGbyte + 0.5Gbyte) =35Gbyte 以及（2Gbyte + 1 Gbyte + 0.5Gbyte + 2Gbyte ) = 5.5Gbyte 之間（或 者，亦可直接對「累計槽案大小」攔位4⑽進行搜尋及比較）， 亦即位於video.004這個擋案中，而其於該檔案中之確切位置亦 了依知、換算公式或比例關係得出，如此，數位影像裝置1〇〇 即得以正確地存取位於video.004中之視訊資料並播出。而隨著 視訊内容依序播出，當所播放的時間點進入到下一個檔案所儲存 之資料位置中（例如該視訊内容的二小時十分之處），同樣經過 22 200840356 時間點/資料量的轉換、以及對索引資料結構彻的搜尋及比較 之後，亦可很迅速地得到目前的時間點所對應到的資料位置係位 於Vlde〇·005這個檔案中、以及其確切位置，數位影像裝置100 同樣地得以正確地存取位於_〇〇〇5中之視訊資料並播出。 而在對所播放之視訊内容進行如倒轉、搜尋等操作時，例 如按下倒轉鈕、操作遙控器520上之飛梭餘、或是拖输 橫桿540上之游標’更可顯現出本發明的好處，尤其是在跨槽案 的倒轉或搜尋操作上。與先前__子中，即所播放的時間點 係位於該視訊内容的-小時二十五分之處，姑所對應之資料位 置係位於videa_這個檔案巾，若這個時候倒轉或搜尋操作的 結果’使得所播放的時間點落於該視訊内容的—小時五分之處， 則經過時間點/資料量的轉換、以及對飩資料結構:的二 及比較之後，同樣可以很迅速地得到目前的時間點所對應到的資 料位置係位於video.，這個標案中、以及其確切位置，如此則 數位影像裝置励同樣地得以料地存取位於⑽中之視 訊資料並細。特雛得㈣岐，在本财關轉或搜尋操作 中’數位影像裝置100所存取的視訊資料原先係從vide_中 取出，到後來則變成從videa003中取出，如此的跨槽案取存視 23 200840356 況貝料的㈣’尤其是逆向（baekwai>d)的跨職取存視訊資料 的操作，於傳統作法中屬於無法達成，但是透過本發明之實施例 中所揭露及說明之索引資料結構的產生及使用，則僅需要一些簡 早的搜尋難内容及味的運算操作，即可輕胃地達到。 ~在此須注意的是，雖然於上述實施射，f㈣料結構 係儲存㈣大小（或累計槽案大小）的資訊，但是熟習此項技術 者亦應理解’本發明並不以此為限，索引f料結構彻中亦可以 儲存相對應於檔案内容起始及/或終結位置之時間印記（tlme stamp^)的方式來處理，亦可達到本發明之目的。再者，由於在 ㈣構中係以每—筆資料對應於—檔案名稱及其播 案(―印記）的方式來安排資訊，故於使用本發明之索 引貝枓結構的數位影像裝置中，其所儲存之複數個屬於同一内容 H门°卩絲）之影像檔案，其檔名並不需要具有任何特定 24 200840356 (seamless)的跨_规搜尋麟雜作，科會如習知技術 -般’導致使用者於跨槽案播放時必須忍受停頓或中斷等不悅的 視聽經驗、或是無法進行跨職的逆向搜尋·放操作等問題。 此外使用如本發明之實施例所述之索引資料結構的數位影像裝 置，與之配合_、職體之猶介面亦可設計賴對财引資料 結構進行管理及顯示’如此—來，使用者於此種朗軟體的介面 :就只需要接觸到以「内容」為單位（咖__)，而非以「播 案」為單位（flk如_的資訊，這將使得制軟體的介面管理 更加簡潔及直覺。 以上所述僅為本翻之較佳實_，凡依本發明申請專利範 圍所做之鱗難態飾，冑闕本發批涵蓋範圍。 【圖式簡單說明】 第1圖為依據本發明—實施例之數位影像系統的示意圖； 第2圖為依據本發明-實施例’數位影像裝置應播放所接收進 來的視訊資料之處理路徑示意圖； 釤圖為屬於同-内容之複數個影像權案的示意圖； 第4圖為依據本發明一實施例 緊弓丨貝料結構400與上述影像檔 200840356 .的示意圖； 第圖為依據本發明一實施例，帛4圖中之索引資料結構4〇〇 中所包含之内容的示意圖 ;以及 第6圖為依據本發明一實施例，操作數位影像裝置議時所播放 之視訊内容朗複數姆像_之間之對顧係示意圖。 【主要元件符號說明】 100 ' '-------- -- —-—-—— 數位影像裝置 110 電視解碼器 120 微處理器 130 — —一 電視編碼器 140 影音資料源 150 160 ^-----—-——-— 儲存裝置 ~ —^~______ 顯示裝置 210 -- 電視解碼操作 220 1 ----^一 微處理器操作 ~' 222 —_______ — 視訊如置處理 224 MPEG2編碼操作 226 MPEG2解碼操作 26 200840356 228 選擇操作 230 電視編碼操作 250 視訊資料儲存 260 播放操作 400 索引資料結構 410〜450 資料 460 檔案名稱欄位 470 檔案大小欄位 480 累計檔案大小欄位 510 操作介面 520 遠端操作介面 530 顯不晝面 540 時間軸橫桿（時間指標） 550 内容指標 27Allocation Table 32-bit version) ^ NTFS (New Technology File System) and other specifications. Among them, the standard that meets the specifications of the Lake 2 view system has a 4Gbyte job size description. In the past, such a difficult size limit would not cause too much _ storage and reading _ _ _ _ _ In the application of goods, it is rare that a single-rights case will contain more than 4 Gbytes of data. The computing power is getting stronger and stronger. With the advancement of semiconductor lining, the processing of various electronic products, the low reading of the storage m, makes the various materials into materials, due to the storage and processing of four trends, among which the most developed areas That is to say, in 6 200840356, in terms of multimedia audio and video specifications, for example, in image specifications, from the past standard definition (SD) images, to the current highdefinition (HD) images. On the hardware side, there are products such as digital TV (τν), digital set-top box (STB), and digital video recorder (DVR). The Department of Science and Technology develops and reads, and the Xiwei solution gives viewers more experience and more convenient usage patterns. However, in such a development trend, if the FAT32 construction system has an upper limit on the single-view size, it will cause inconvenience in job management and unpleasantness in audio-visual drought. This is due to the current and future multimedia audio and video formats. 'The production of audio and video assets after the deposit: the secret amount _ more than ten said to do, and the audio and video information (such as the same-part movie) that belongs to the same - content is bound to be able to be plural; The slot management is inconvenient and difficult to read. The same situation can occur in the Wei Wei or other video processing technology, such as the upper limit of DivX 1Gbyte size. The compressed file generated by the image coding technology will also have the same result as above. Targeted digital video devices, such as digital video recorders, digital video recorders, and digital video or digital audio products, are intended to reduce the number of previously recorded or downloaded from other sources. The upper limit, but in fact, is the same as the image file of 200840356, which is the same as the image file of the inner valley (as in the movie), the method adopted is only to lie down in the alphabetical order of the file name. In the case of 仃 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The extra file of the content, the system will not be able to exclude it and still play; when you want to seek the same content (like the movie), the scope of the standard can only be played now. The Tan case Fan _, and can not carry out the cross-file standard operation; and the inevitable video pause and discontinuity between the playback of the previous power and the 'under-view' is the result. Audiovisual experience is poor One of the main reason. SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a method for digital image display and video playback, which records related information of a complex domain belonging to the same content in a data structure to achieve smooth navigation. The purpose of playing the image. According to an embodiment of the present invention, a digital video recording device includes a storage device, and a processing circuit is coupled to the storage device for receiving a video signal and the video signal is in the form of a plurality of video files. Deposited in * 200840356 = centered 'and used to generate - cable bow data structure ' the index data structure package = number « material, points to the next image slot case; and a display device - ^ (four) bribe In the video of the video, the visual acuity is based on the "time count value == 丨 结 魏 行 行 魏 魏 魏 , , , , , , , , , , , , , , , , , , , , 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第_ location.人康本^月的知例's another disclosure - a digital image system, which contains storage settings for storing multiple image files; a first logic, transfer two ^ deposits 'used to maintain - An index data structure, the index data structure package S has a plurality of pieces of data corresponding to the plurality of image jobs; and - the display is installed in the first - logic 'from the first - logic to receive and display the plurality of images The video content of the case; wherein when the video content is displayed, the first logic is based on the date_physical value to compare and compare the index data structure to determine the plurality of image jobs to be read - the first The first position of the video job and the first image archive. According to an embodiment of the present invention, an image playback method is further disclosed. The package 9 200840356 includes generating an index data structure, wherein the data structure of the cable includes a plurality of data corresponding to the plurality of image files; a time count value, wherein the daytime defensive value corresponds to one of the video content to be displayed; the index data structure is searched and compared according to the time count value to determine the plurality of images to be read. a first image file in the file and a first location in the first image file; and reading the first location in the first image file to display the video content. [Embodiment] Hereinafter, in the description of the embodiment of the present invention, a digital video recorder and/or a main component included therein, that is, a digital video (d) chip (dvr_fu), will be described as an example, but familiar with Those skilled in the art should understand that the application field of the present invention is not limited thereto, and other digital video/playback functions or built-in digital video recording devices (such as digital on-board boxes and digital devices). The method of the present invention can be applied to televisions, game consoles, and other electronic/multimedia products that continuously play a plurality of difficult requirements belonging to the same content. Ming Cang, Fig. 1 shows a digital image system 200840356 according to the present invention (for example, a digital video recorder, a digital on-board box, a digital television, a game console, and various devices as described above). A schematic diagram of a control wafer, or other device or product or its control wafer. In FIG. 1, the main constituent elements of a digital video device 1A include a TV decoder 110, a microprocessor 120, and a TV encoder 13 〇. It should be noted that, in addition to the above-mentioned main constituent elements, the digital image device 100 may further include other constituent components, such as an audio input and output interface, an Ethernet module, an IEEE1394 interface, and a USB, depending on the application domain. Interfaces, DDR control modules, flash memory control modules, various peripheral interface modules (such as Gpi〇, UART, i2c), etc., since these components are not the focus of the present invention, they will not be described here. In this embodiment, the digital video device 1 is coupled to a video data source 14 via a television decoder 11 (for example, a video stream transmitted through a network, or a television signal from a central office). In order to receive a video signal from the audio and video source 1 shame. The television decoder H0 is used for decoding the received video signal, for example, decoding the NTSC, pAL, and/or SECAM video signals at the base frequency into a digital YUV 4:2:2 data format. In an embodiment, the television decoder i 10 includes four analog 1-bit converters, and a 2D and 3D comb filter (c〇m|3 filter) for brightness/chroma 200840356 * Separation treatment (YC separation). The microprocessor 120 is coupled to the television decoding interface 110, the television encoder 130, and a mass data storage device, such as a hard disk 150. The microprocessor 12 is configured to perform video signals decoded by the television decoder 110. Processing and accessing the hard disk 150 to transmit the processed video signal to the television encoder 130. In this embodiment, the microprocessor 12 is configured by one or more digital signal processing. A circuit and/or a microprocessor circuit, such as MIPS. The television encoder 13 is coupled to a display device 16 (for example, a flat display screen of a television or a display) for encoding the video signal processed by the microprocessor 120, for example, the digital cR_y_cb 4:2 : 2 format video data is encoded into various standard TV signals, such as NTSC, PAL CVBS, S-video signals, individual yuv or RGB output signals, etc. In this example, the TV code H 13 () system contains six 12-bit digital analog conversion, converter. Referring to Figure 2, there is shown a processing path of the video data received by the image-playing 100 playback in the first drawing according to an embodiment of the present invention. It is the processing or eucalyptus of each component in Figure 1, which will be described in detail below. In the digital video device 100. After receiving the video signal at the source 140, the television decoding operation 2i is first performed by using the television decoding 12 200840356 for 210. The operation content is as described above. After the television decoding operation 210 is completed, the television decoder 21〇 The video signal after the decoding operation is transmitted to the microprocessor 120, and the microprocessor 12 first performs the video pre-processing 222 on the video signal #u, in general, the pre-processing (pre_pr〇) Cessing) will work on the other video of the video signal fine ship operation to reduce the rhyme of the birth of the county. After the pre-processing, the video signal enters two different processing paths respectively. In the _ path, the pre-processed view number is directly transmitted to the TV code ^(10) to perform a The television encoding operation 23 is operated as described above, and the visual number after the encoding operation is transmitted to the display device 16 for playback operation 26〇. In the second way, the pre-processed video signal will be compressed into MPEG2 encoding operation or other data compression operation to compress the data volume for storage on the hard disk. (ie, the video data storage is inserted as 250) 'The compressed data at the time of the required time (as exemplified below) will be read out of the broken storage meal, and the microprocessor 12 will decode the EG2. To restore the video signal before compression, and then to decompress the video encoding operation 23G and the operation of the playback operation 260, 13 200840356 It should be noted here that the microprocessor 120 performs the video signal in the second path. When compressed for storage, a timestamp is also added to the stored video signal to facilitate the digital image device to identify the day-to-day point at which each portion of the image is located. The technical department of the Visionary Canada Day is widely known to those who are familiar with the technology, so the details will not be described here. As described above, the embodiment of the present invention does not resemble the conventional processing method, and only the method of reading and storing the video data stored in the first place can be read and played. (10) Gu) The user of the demand must endure the delay in time (or even up to several seconds), and provide a visual processing path ((4) to describe the path, which is pre-processing the video signal. After that, in the case where the compression encoding operation is not subjected to the operation of the hard disk encoding, the hard disk decoding is performed, the video signal is directly output and played to ensure that the user is able to view the Instant video content without having to endure the extra time spent on compressing codecs and accessing hard drives. Such a function is significant in the case where the user is very concerned about the situation (such as watching a sports event or a first film). In addition to providing the first path for instant play, the embodiment of the present invention provides a second path for compressing and storing the pre-processed video signal, which is a test star user in addition to viewing the instant content. In addition to the demand, there will also be a need to pause the viewing and then replay and/or rewind or seek the content that has already been played. For example, when a user pauses viewing (for example, pressing the pause button "PAUSE") during a viewing of an instant content, and then continues to view the video, if it does not wish to miss any moment in the content. The details can be used for the digital video device (for example, press the playback button "PLAY" again), then the microprocessor 12 will generate a corresponding control signal to take k (to work 228 The image is read from the hard disk 150 and decoded by the MPEG2 (4), so that the image is immediately followed by the contents of the previous data. When the system has the need to rewind or search (micro (4)) the content that has already been broadcasted, it can perform appropriate operations on the digital video device (for example, pressing the reverse button "REWIND" The shuttle spinner "shuttle"), the scale microprocessor (four) will produce a corresponding control signal CTRL, to select the self-hard disk (9) read out and the MPEG2 decoding operation video, and the ship fine The custodian point corresponding to the operation of the user's output has the content of the correct time stamp. In addition to the above various operations, the user can also choose to return to the most 15 200840356. _ content viewing, as long as the operation of the Kazaki (such as pressing the instant play button "brain") 'At this time the microprocessor 12 A corresponding control signal CTRL' is generated to re-visit the video signal generated by the light processing system without being transmitted and stored, and the content is played again immediately. In this case, in the above embodiment, the television decoding operation 2 (1) and the private video, and the flat horse "23" are implemented by dedicated (10 (4) TV decoder circuit and TV code ☆ circuit, respectively. The video pre-processing 222, the encoding "production, and the MPEG2 decoding operation are implemented by the operation of the microprocessor uo with the software or the private code of the body, but those skilled in the art should understand that the present invention does not This is limited to the above various processing operations and the functions provided can be implemented by a dedicated hardware circuit, a software program code, or a combination of the two. Further, although in the secret embodiment, the digital image The device leakage system includes a television decoder 11 for converting analog video signals into digital video signals and a television code II (10) for converting digital video signals into digital video signals, but the present invention is not limited thereto. In the case where the video signal transmitted by the source 14 is originally in the digital format, the television decoding H 11G is an unnecessary component, and the display device 16 at the back end has a digital signal. In the case of being able to receive a digital video signal, the optical encoder, 130 is also an unnecessary component. As for the storage device 150, in the present embodiment, 16 200840356 is a hard disk that is shouted or externally connected to the digital shadow. For example, the present invention is not intended to be a PH 'other device such as a connection device, and is also an example thereof. In addition, in the present embodiment, the digital video device i (8) may first perform image storage on the video signal, and save the bandwidth and storage space. However, the rabbit month is not limited thereto. In the embodiment, the video signal may be directly stored in the storage device 150 without being compressed. The third image of the same content (like a movie) is stored in the hard disk (9) or received via the Internet or other Longyuan. Schematic diagram. As shown in Figure 3, it belongs to the same-content--the hoof is difficult to touch into five positions, which are 2Gbyte of "video.〇〇1", Najia's "vide〇〇〇2", and 〇观加_〇", 2Gbyte "videG._", coffee% "(4)(7)〇〇5", where the information stored in videaGG2 is in the chronological order of content after video.001, and videa(8)3 The information stored is the time sequence of the content, _ after vKleaGG2, and so on. The reason why the video data is stored in a plurality of bets may be due to the file system used (such as FAT32) or the encoding technology used (such as the limitation of the size of the single slot). A plurality of files may be in the form of individual slots when transmitted from the data source (for example, via the network), or when the microprocessor 120 performs compression encoding. The plurality of individual files are stored in the hard disk 150. In the embodiment of the present invention, the digital video device (10) broadcasts or forms the video files of the same-side content in the same manner, except for broadcasting the above images. Fortunately, it is stored in the hard disk 15 〇 ' 'more will be generated and stored — used to refer to (4) index data structure of the image slot, as shown in Figure 4, which shows an implementation according to the present invention For example, in the fourth figure, the index f structure contains a plurality of entries, wherein each data is separately One of the above multiple image files, for example, the first data 41 corresponds to the video - 'the second data 420 corresponds to videos, and so on. Please refer to Figure 5, which shows the basis. A schematic diagram of the content included in the index data structure 400 in FIG. 4, in the index data structure 4, corresponding to each piece of data, including a "file name" field 46Q, A "file size" field 470, and optionally a "cumulative slot size" field 480. 18 200840356 wherein the "file name" field 460 is used to indicate the temporal order of the content of the video material. For each title of the case, for example, in Figure 5, the name of the reference to the first item is "vide〇〇〇i" and the name of the second item is "the name of the case". "videa〇()2", and so on, the "File Name" field of the fifth data is "video.005". The "Slot Size" position is used to indicate that each shot corresponds to the corresponding shot. What is the _ size of the slot name, for example in Figure 5 In the middle, the "file size" field of the first data is the size of video001, that is, 2Gbyte. The "slot size" of the second data is the size of the tear of the vid, that is, 1Gbyte. (4) The "File Size" block is 1Gbyte in size of _α〇05. If you choose to use the "Accumulated Tan Size" block, the block is used to store the accumulated structure since the first data. For example, in the fifth figure, the "section_size" block sequentially stores 2Gbyte > 3Gbyte > 3.5Gbyte > 5.5Gbyte ^ 6.5Gbyte. In this embodiment, the digital image device will be At the appropriate timing, such as initialization, __ difficult directory (fUe, it is difficult to search for the stored image, according to the results of the search to find the domain with the same slot case (10) 纽本纽财, Finance _ for "Na. "Slot case", and then fill in the relevant information of the leak into the resulting index data structure 19 200840356 4 (8) 'and paste: _# structure · temporary storage in the memory space (such as a mine random access memory , not shown in the financial). However, the method for generating and transferring the lean structure of the introduction of the invention is not a condition of the present invention. Other people who are familiar with the technology know that the method can be applied to the U field. The index data structure can also be stored in the form of an archive. Furthermore, the index data structure in this embodiment includes, in addition to the side bits as described above, a signal format (for example, a job or PAL), video, which is further reduced by Yang. Bit rate (vide.**), video length (such as how much time or how many side frames) and other information, in order to facilitate the search and positioning during playback. Since the digital image device 100 according to the embodiment of the present invention generates and maintains the index data structure 400 as shown in FIG. 5, the digital image device 1 can read the information stored in the index data structure 400. With a simple indexing operation, it is very quick to find out which of the plurality of image files the video content currently to be played is located in, and then access the specified file. Location to play the video content correctly. Please refer to FIG. 6 , which is a schematic diagram showing the correspondence between the video content played by the digital image device and the plurality of image files according to an embodiment of the invention. In FIG. 6 2008, the operating interface 51 〇, the remote operation “surface 520, and the display surface 530 ′′ of the digital image device 100 are displayed. In this embodiment, the operation interface 51 includes control video. Play back common operational functions such as "play", "rewind", "fast forward" buttons, or other functions, while the remote operation interface 520 (such as a remote control) In addition to the various operating buttons as described above, there is also a shuttle that can be used to quickly find a piece of video content to be viewed. In Fig. 6, a time axis 540 ' is further shown. It should be noted that the time axis rail 54 〇 may be part of the playback operation interface belonging to the digital image device 100 on the B, and may be Applying a drag to determine the desired time point, or it may be used only to represent the time index of the video content being played by the K(8) case, but not actually Displayed in the operation interface. ~ When you want to reduce the view _ Rong is the right day (for example, #user knows to regenerate la) 'Digital video device 丨 (4) 持续 will continue to turn - time count value, used to indicate the time point of the content currently being played, borrow By continuously incrementing the time count value, the view capacity is then played in sequence. Since there is a correspondence between the playing time point of the video content and the data position stored in the video jobs, as shown in FIG. 6, the time axis crossbar 54 used as the time index and 21 200840356 The content index indicating the location of the data in each slot case ((10)tem55 has a one-to-one correspondence. Therefore, the time count value maintained by the digital video device 100 can be converted into the corresponding data position, and then (4) The index data structure 400 in Fig. $ searches and compares to determine which position in the file of the plurality of image files is at the time point of the current playing time. For example, If the user presses the regeneration button, the time point of the playback is at the time of the hour-to-half of the video content, the conversion of the refill amount at the time of the sequel, and the search and comparison of the index data structure 400 (for example) After searching and comparing the "file size" shelf 470, you can get the data location corresponding to the current time point (2Gbyte+ lGbyte + 0.5Gbyte) = 35Gbyte and (2Gbyte + 1 Gbyte + 0.5Gbyte + 2Gbyte) = 5.5Gbyte (or, you can also directly search and compare the "Accumulate Slot Size" block 4 (10)), which is located in the video.004 file. And the exact position in the file is also obtained according to the knowledge, conversion formula or proportional relationship, so that the digital video device 1 can correctly access the video data located in video.004 and broadcast. As the video content is broadcasted in sequence, when the time point of playback enters the data location stored in the next file (for example, two hours of the video content), the same time passes 22 200840356 time point / data volume conversion After searching and comparing the index data structure, the data location corresponding to the current time point can be quickly obtained in the file Vlde〇.005 and its exact location, and the digital image device 100 is similarly The video data located in _〇〇〇5 can be correctly accessed and broadcasted, and when the video content being played is operated such as reverse, search, etc., for example, pressing reverse The advantages of the present invention may be manifested by the button, operating the shuttle on the remote control 520, or dragging the cursor on the crossbar 540, especially in the reverse or search operation of the cross-slot case. In the middle, that is, the time point of the broadcast is located at -25 minutes of the video content, and the data location corresponding to the video is located in the videa_ file towel, if this time reverses or searches for the result of the operation' The time point falls on the hour-and-five points of the video content. After the time point/data amount conversion and the data structure: the second and the comparison, the current time point can be obtained very quickly. The location of the data is located in video., in this standard, and in its exact location. Thus, the digital video device is equally capable of accessing the video data located in (10) and is fine. In the case of this financial transaction or search operation, the video data accessed by the digital video device 100 was originally taken out from the vide_, and later it was taken out from the videa003, so that the cross-slot case was taken.视23200840356 The fourth (in particular) reverse (baekwai>d) inter-service access to video data operations is not possible in the conventional practice, but through the index data disclosed and described in the embodiments of the present invention The generation and use of the structure requires only a few simple operations to search for difficult content and taste, and it can be achieved gently. ~ It should be noted here that although the above-mentioned implementation, the f (four) material structure stores information on the size of the (four) size (or the size of the accumulated trough case), those skilled in the art should also understand that the present invention is not limited thereto. The index f material structure can also be processed in a manner corresponding to the time stamp (tlme stamp^) corresponding to the start and/or end position of the file content, and can also achieve the object of the present invention. Furthermore, since the information is arranged in the (four) configuration in such a manner that each of the data corresponds to the file name and its broadcast ("imprint"), in the digital image device using the index shell structure of the present invention, The stored image files belonging to the same content H. , , , , , , , 其 其 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 This causes the user to endure unpleasant audio-visual experiences such as pauses or interruptions during playback of the inter-slot case, or problems such as reverse search and release operations that are not possible. In addition, the digital image device using the index data structure as described in the embodiment of the present invention can be used to manage and display the structure of the financial data. This kind of software interface: you only need to touch the "content" unit (coffee __) instead of the "broadcast" unit (flk such as _ information, which will make the software interface management more concise And the intuition. The above description is only the preferred embodiment of the present invention. The scales of the scales according to the scope of the patent application of the present invention are covered by the scope of the present invention. [Simplified description of the drawings] FIG. 1 is based on the present invention. - Figure 2 is a schematic diagram of a digital image system of an embodiment; Figure 2 is a schematic diagram of a processing path for a digital video device to play received video data in accordance with the present invention - a plurality of image rights belonging to the same content 4 is a schematic view of a tight bow and bun material structure 400 and the above image file 200840356 according to an embodiment of the present invention; and FIG. 4 is an index data knot in FIG. 4 according to an embodiment of the present invention; A schematic diagram of the content contained in the structure; and FIG. 6 is a schematic diagram of the relationship between the video content of the digital video device played by the digital image device in accordance with an embodiment of the present invention. Component Symbol Description 100 ' '-------- ------- Digital Video Device 110 TV Decoder 120 Microprocessor 130 — A TV Encoder 140 Video Source 150 160 ^-- -------- Storage device ~ —^~______ Display device 210 -- TV decoding operation 220 1 ----^Microprocessor operation ~' 222 —_______ — Video processing 224 MPEG2 encoding operation 226 MPEG2 Decoding Operation 26 200840356 228 Selection Operation 230 TV Encoding Operation 250 Video Data Storage 260 Play Operation 400 Index Data Structure 410~450 Data 460 File Name Field 470 File Size Field 480 Total File Size Field 510 Operation Interface 520 Remote Operation interface 530 is not visible 540 Timeline crossbar (time indicator) 550 Content indicator 27