* Subtract a doubled value from another value with saturation at both stages. * * @param a first value * @param b value doubled and subtracted fr

* Subtract two signed 32-bit values with saturation. * * @param a one value * @param b another value * @return difference with signed saturation

* Convert a SoftFloat to a double precision float. */

* Converts a SoftFloat to an integer. * Rounding is to -inf. */

Convert the softfloat to integer */

* Multiply two `size_t` values checking for overflow. * * @param[in] a,b Operands of multiplication * @param[out] r Pointer to the result of the

* Get the count of continuous non zero chars starting from the beginning. * * @param len maximum number of characters to check in the string, that

* @returns the difference of 2 SoftFloats. */

* Locale-independent conversion of ASCII characters to uppercase. */

* Fill the provided buffer with a string containing a timestamp * representation. * * @param buf a buffer with size in bytes of at least AV_TS_MAX_

* Fill the provided buffer with a string containing a timestamp time * representation. * * @param buf a buffer with size in bytes of at least AV_TS

* Return x default pointer in case p is NULL. */

* ftell() equivalent for AVIOContext. * @return position or AVERROR. */

Used in codec2raw demuxer and libcodec2 encoder

Returns version as a 16-bit value. 0.8 -> 0x0008

Note: these do not follow the BSD/Apple/GNU convention of returning -1 for -Inf, +1 for Inf, 0 otherwise, but merely follow the POSIX/ISO mandated spe

* Shift value left or right depending on sign of offset parameter. * @param value value to shift * @param offset shift offset * * @return value <<

* approximates exp10f(-3.0f*(0.5f + 0.5f * cosf(FFMIN(b,15.5f) / 15.5f))) */

LCG for noise generation */

Return the maximum scalefactor where the quantized coef is not zero. */

* Schur recursion. * Produces reflection coefficients from autocorrelation data. */

* decodes a P_SKIP or B_SKIP macroblock */

* Empty mmx state. * this must be called between any dsp function and float/double code. * for example sin(); dsp->idct_put(); emms_c(); cos() * No

* erf function * Algorithm taken from the Boost project, source: * http://www.boost.org/doc/libs/1_46_1/boost/math/special_functions/erf.hpp * Use,

* Fill the frame structure variables from bitstream by parsing the * given reordering table that uses the following format: * * Each field (16 bits

* Add a buffer to the queue. * * If the queue is already full, then the current last buffer is dropped * (and unrefed) with a warning before adding

* Unref and remove all buffers from the queue. */

* Get a buffer from the queue without altering it. * * Buffer with index 0 is the first buffer in the queue. * Return NULL if the queue has not eno

we lack some functions on all host platforms, and we don't care about performance and/or strict ISO C semantics as it's performed at build time

* Trailing zero bit count. * * @param v input value. If v is 0, the result is undefined. * @return the number of trailing 0-bits */ We use the

We use the De-Bruijn method outlined in: * http://supertech.csail.mit.edu/papers/debruijn.pdf. */

Returns true if data identifier matches a teletext stream according to EN * 301 775 section 4.4.2 */

Returns true if data unit id matches EBU teletext data according to * EN 301 775 section 4.4.2 */