* Returns the optimal value (0 or 1) for the ac_pred element for the given MB in mpeg4. * This function will also update s->block_last_index and s->a

* Decode a 10-bit algebraic codebook index from a 10.2 kbit/s frame. */

* Decode the algebraic codebook index to pulse positions and signs and * construct the algebraic codebook vector for MODE_10k2. * * @param fixed_in

* Decode a single audio block from the AC-3 bitstream. */

* Decode audio specific configuration; reference: table 1.13. * * @param data pointer to AVCodecContext extradata * @param data_size s

* Decodes an Indeo5 band. * * @param ctx [in,out] ptr to the decoder context * @param band [in,out] ptr to the band descriptor * @par

* Decodes Indeo5 band header. * * @param ctx [in,out] ptr to the decoder context * @param band [in,out] ptr to the band descriptor *

* Decode band structure for coupling, spectral extension, or enhanced coupling. * The band structure defines how many subbands are in each band. For

* Decode band types (section_data payload); reference: table 4.46. * * @param band_type array of the used band type * @param band_typ

decode block and dequantize */

* Decode Bink Audio block * @param[out] out Output buffer (must contain s->block_size elements) */

decode block and dequantize - progressive JPEG version */

decode block and dequantize - progressive JPEG refinement pass */

Very compact version of the block code decoder that does not use table * look-up but is slightly slower */

Decodes blocks dependently. */

Decodes blocks independently. */

* Decode coupling_channel_element; reference: table 4.8. * * @param elem_id Identifies the instance of a syntax element. * * @return Returns er

* Decode an array of 4 bit element IDs, optionally interleaved with a stereo/mono switching bit. * * @param cpe_map Stereo (Channel Pair Element) ma

*@brief Decode channel transformation parameters *@param s codec context *@return 0 in case of success, < 0 in case of bitstream errors */

* Get one coefficient value from the bistream and store it. */

*@brief Extract the coefficients from the bitstream. *@param s codec context *@param c current channel number *@return 0 on success, < 0 in case of

Decode columns by checking if they are skipped * @param plane Buffer to store decoded bits * @param[in] width Width of this buffer * @param[in] hei

Decodes the block data for a constant block */

* Decode a channel_pair_element; reference: table 4.4. * * @param elem_id Identifies the instance of a syntax element. * * @return Returns erro

*@brief Calculate a decorrelation matrix from the bitstream parameters. *@param s codec context *@param chgroup channel group for which the matrix n

* Parse whether channels are to be excluded from Dynamic Range Compression; reference: table 4.53. * * @return Returns number of bytes consumed. *

* Decode dynamic range information; reference: table 4.52. * * @param cnt length of TYPE_FIL syntactic element in bytes * * @return Returns num

Uninitializes the ALS decoder. */

* decode exponents coded with LSP coefficients (same idea as Vorbis) */

* decode exponents coded with VLC codes */

* Decode the grouped exponents according to exponent strategy. * reference: Section 7.1.3 Exponent Decoding */

* Decode extension data (incomplete); reference: table 4.51. * * @param cnt length of TYPE_FIL syntactic element in bytes * * @return Returns nu

* Decode the algebraic codebook index to pulse positions and signs, * then construct the algebraic codebook vector. * *

*@brief Decode one WMA frame. *@param s codec context *@return 0 if the trailer bit indicates that this is the last frame, * 1 if there are

* Validate and decode a frame header. * @param avctx AVCodecContext to use as av_log() context * @param gb GetBitContext from which to

* Decode GA "General Audio" specific configuration; reference: table 4.1. * * @return Returns error status. 0 - OK, !0 - error */

* Converts codebook transmission codes to GAIN and INDEX. * * @param q the context * @param gain array holding the decoded gain * * TIA/EIA/IS-73

* Decode pitch gain and fixed gain factor (part of section 6.1.3). * * @param p the context * @param amr_subframe unpacked amr subframe * @param m

* Decodes Indeo5 GOP (Group of pictures) header. * This header is present in key frames only. * It defines parameters for all frames in a GOP. *

* decode block and dequantize. * Note this is almost identical to MJPEG. */

* Decodes the 10 quantized LSP frequencies from the LSPV/LSP * transmission codes of any bitrate and checks for badly received packets. * * @param