* init s->current_picture.qscale_table from s->lambda_table */

* Destroy IntraX8 frame structure. * @param w pointer to IntraX8Context */

* Initialize IntraX8 frame decoder. * Requires valid MpegEncContext with valid s->mb_width before calling. * @param w pointer to IntraX8Context * @

* Decode single IntraX8 frame. * The parent codec must fill s->loopfilter and s->gb (bitstream). * The parent codec must call MPV_frame_start(), ff_

* Calculate quantized gradient value, used for context determination */

* Calculate LPC coefficients for multiple orders * * @param use_lpc LPC method for determining coefficients * 0 = LPC with fixed pre-defined coeff

* Decode given number of bytes * NOTE: the algorithm here is inspired from the LZW GIF decoder * written by Steven A. Bennett in 1987. * * @param

* Initialize LZW decoder * @param s LZW context * @param csize initial code size in bits * @param buf input data * @param buf_size input data size

* LZW main compress function * @param s LZW state * @param inbuf Input buffer * @param insize Size of input buffer * @return Number of bytes writt

* Write end code and flush bitstream * @param s LZW state * @return Number of bytes written or -1 on error */

* Initialize LZW encoder. Please set s->clear_code, s->end_code and s->maxbits before run. * @param s LZW state * @param outbuf Output buffer * @pa

isn't this function nicer than the one in the libjpeg ? */

quantize tables */

* Compute codec id for 'lpcm' tag. * See CoreAudioTypes and AudioStreamBasicDescription at Apple. */

useful helper to get mpeg audio stream infos. Return -1 if error in header, otherwise the coded frame size in bytes */

bitrate is in kb/s */

* Finds the end of the current frame in the bitstream. * @return the position of the first byte of the next frame, or -1 */

* decode mpeg4 headers * @return <0 if no VOP found (or a damaged one) * FRAME_SKIPPED if a not coded VOP is found * 0 if a VOP is

init all vlc decoding tables */

Encoding of a block. Very similar to MPEG4 except for a different escape coding (same as H263) and more vlc tables. */

* Parse MPEG-PES five-byte timestamp */

* Perform 4-bit block reordering for SIPR data. * @todo This can be optimized, e.g. use memcpy() if data blocks are aligned */

skip a RTP/TCP interleaved packet */

* Initialize decoder. */

* Decode starting slice position. * @todo Maybe replace with ff_h263_decode_mba() ? */