US 9,317,504 B2Granted

Method for searching for flash video tag in bitstream and searching apparatus thereof

AssigneeMediaTek Singapore Pte. Ltd.

InventorJun Cui

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Abstract

A method for searching for a flash video (FLV) tag in a bitstream includes the following steps: setting a first start position and a first search length related to a first search process, wherein the first search length indicates a bitstream length of the first search process performed upon the bitstream; starting the first search process upon the bitstream from the first start position to search for the FLV tag; when the FLV tag is not found in the first search length, setting a second start position related to a second search process immediately following the first search process, wherein the first start position and the second start position are separated by a time period equaling a sum of the first search length and a first skip length corresponding to the first search process; and starting the second search process upon the bitstream from the second start position to search for the FLV tag.

Claims25

Dependent claims

A method for searching for a flash video (FLV) tag in a bitstream, comprising:

setting a first start position and a first search length related to a first search process, wherein the first search length indicates a bitstream length of the first search process performed upon the bitstream and corresponds to a minimum bitstream length in which an FLV tag should exist;
starting the first search process upon the bitstream from the first start position in order to search for the FLV tag;
when no FLV tag is found in the first search length, setting a second start position related to a second search process following the first search process, wherein the first start position and the second start position are separated by a time period equaling a sum of the first search length and a first skip length set according to the first search process, the first skip length being different from the first search length;
and
starting the second search process upon the bitstream from the second start position in order to search for the FLV tag;
wherein the step of setting the first start position and the first search length, the step of starting the first search process, the step of setting the second start position, and the step of starting the second search process are performed by a searching apparatus.

3 more elements

A searching apparatus for searching for a flash video (FLV) tag in a bitstream, comprising:

a hardware setting module, for setting a first start position and a first search length related to a first search process, wherein the first search length indicates a bitstream length of the first search process performed upon the bitstream and corresponds to a minimum bitstream length in which an FLV tag should exist;
and
a hardware searching module, for starting the first search process upon the bitstream from the first start position in order to search for the FLV tag;
wherein when no FLV tag is found in the first search length, the setting module is further used for setting a second start position related to a second search process immediately following the first search process, where the first start position and the second start position are separated by a time period equaling a sum of the first search length and a first skip length set according to the first search process, the first skip length being different from the first search length;
and the searching module is further used for starting the second search process upon the bitstream from the second start position in order to search for the FLV tag.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/810,209Filed 15 Jul 2010
Published: US 2013/0117295 A19 May 2013
Granted: 19 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06F 16/48
Of multimedia data, e.g. slideshows comprising image and additional audio data: retrieval characterised by using metadata, e.g. metadata not…
G06F 16/40
Information retrieval; Database structures therefor; File system structures therefor: of multimedia data, e.g. slideshows comprising image and…
G11B 27/105
Programmed access in sequence to addressed parts of tracks of operating record carriers: of operating discs
G11B 27/3027
On the same track as the main recording: used signal is digitally coded