Technique | Transcoding |
---|---|
Document | NXXX MPEG-7 Comittee Draft MDS |
Name | Peter M. Kuhn (Sony Japan), Teruhiko Suzuki (Sony Japan), Anthony Vetro (Mitsubishi MERL) |
pkuhn@av.crl.sony.co.jp | |
Contact | pkuhn@av.crl.sony.co.jp |
Type | Application |
External Libraries | libklt |
Related Ds/DSs | ?? |
Used Ds/DSs | none |
Input | MPEG-Video (foo.mpg) |
Output | Extraction: Transcoding Metadata (DDL file) Transcoding: Transcoded Bitstream (foo.mpg) |
Extraction | Yes |
Client Appl | Transcoding Application |
Summary | This component computes metadata for use in transcoding. This component provides a baseband transcoder, which transcodes video between different MPEG-1, MPEG-2, and MPEG-4 (as a separate component) formats. Strong Points Reduction of transcoding complexity while preserving the visual quality. Insertion of I-frames at arbitrary location, e.g. at scene changes. |
Limitations | NONE |
Known Problems | NONE |
Parameters | /* default application name*/ Application TransServer /* default database file name*/ ListFile Trans.lst /* default bitstream file*/ Bitstream Trans.ddl /* parmeter file for extraction*/ /*Extractparfile Trans.par*/ /* Parameter files for the reencoder */ Encoding_par_filename news1_1000.par Difficulty_par_filename news1_diff_1000.par Sim_Dir_filename . /* stat.out.bits location (generated by xmpg2enc) */ Difficulty_bits_filename stat.out.q1.bits /* decoding startframe */ startframe 8 /* number of frames to be decoded */ frames 1000 /* */ seg_frames 0 /* number of featurepoints for which a new segment is started 100 */ fp_new_me_seg 50 /* minimum length of segment */ segmin 12 /* maximum lenght of segment */ me_segmax 400 /* 1: fixed search range with me_max, 0: variable search range */ me_fix 0 /* maximum search range */ me_max 15 /* minimum search range */ me_min 8 /* time base*/ nnfraction 30 nn 1 /* which difficulty hints to be used */ m_use_me_search_range 1 m_use_motion_uncompensability 1 m_use_difficulty 1 |