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author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2013-05-25 12:15:37 +0200 |
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committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2013-05-28 14:08:09 +0200 |
commit | 6647aa0426e73839b9b1d1c9d86188f469167531 (patch) | |
tree | c4877dfa1dec1188e72fbab4f0ab7e8d5b591977 /libavcodec/ivi_dsp.h | |
parent | 3b03d7e251ff6e65cb4e509c66ff0d02887c3247 (diff) | |
download | ffmpeg-6647aa0426e73839b9b1d1c9d86188f469167531.tar.gz |
indeo4: add missing Haar and slanted transforms
That involves fixing INV_HAAR4() macro and changing it to work with different
input and output like INV_HAAR8() instead of in-place transform.
Diffstat (limited to 'libavcodec/ivi_dsp.h')
-rw-r--r-- | libavcodec/ivi_dsp.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/libavcodec/ivi_dsp.h b/libavcodec/ivi_dsp.h index c46f8b2d8d..31d37e3f9f 100644 --- a/libavcodec/ivi_dsp.h +++ b/libavcodec/ivi_dsp.h @@ -66,6 +66,71 @@ void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags); /** + * one-dimensional inverse 8-point Haar transform on rows for Indeo 4 + * + * @param[in] in pointer to the vector of transform coefficients + * @param[out] out pointer to the output buffer (frame) + * @param[in] pitch pitch to move to the next y line + * @param[in] flags pointer to the array of column flags: + * != 0 - non_empty column, 0 - empty one + * (this array must be filled by caller) + */ +void ff_ivi_row_haar8(const int32_t *in, int16_t *out, uint32_t pitch, + const uint8_t *flags); + +/** + * one-dimensional inverse 8-point Haar transform on columns for Indeo 4 + * + * @param[in] in pointer to the vector of transform coefficients + * @param[out] out pointer to the output buffer (frame) + * @param[in] pitch pitch to move to the next y line + * @param[in] flags pointer to the array of column flags: + * != 0 - non_empty column, 0 - empty one + * (this array must be filled by caller) + */ +void ff_ivi_col_haar8(const int32_t *in, int16_t *out, uint32_t pitch, + const uint8_t *flags); + +/** + * two-dimensional inverse Haar 4x4 transform for Indeo 4 + * + * @param[in] in pointer to the vector of transform coefficients + * @param[out] out pointer to the output buffer (frame) + * @param[in] pitch pitch to move to the next y line + * @param[in] flags pointer to the array of column flags: + * != 0 - non_empty column, 0 - empty one + * (this array must be filled by caller) + */ +void ff_ivi_inverse_haar_4x4(const int32_t *in, int16_t *out, uint32_t pitch, + const uint8_t *flags); + +/** + * one-dimensional inverse 4-point Haar transform on rows for Indeo 4 + * + * @param[in] in pointer to the vector of transform coefficients + * @param[out] out pointer to the output buffer (frame) + * @param[in] pitch pitch to move to the next y line + * @param[in] flags pointer to the array of column flags: + * != 0 - non_empty column, 0 - empty one + * (this array must be filled by caller) + */ +void ff_ivi_row_haar4(const int32_t *in, int16_t *out, uint32_t pitch, + const uint8_t *flags); + +/** + * one-dimensional inverse 4-point Haar transform on columns for Indeo 4 + * + * @param[in] in pointer to the vector of transform coefficients + * @param[out] out pointer to the output buffer (frame) + * @param[in] pitch pitch to move to the next y line + * @param[in] flags pointer to the array of column flags: + * != 0 - non_empty column, 0 - empty one + * (this array must be filled by caller) + */ +void ff_ivi_col_haar4(const int32_t *in, int16_t *out, uint32_t pitch, + const uint8_t *flags); + +/** * DC-only two-dimensional inverse Haar transform for Indeo 4. * Performing the inverse transform in this case is equivalent to * spreading DC_coeff >> 3 over the whole block. @@ -142,6 +207,30 @@ void ff_ivi_col_slant8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags); /** + * inverse 1D row slant transform + * + * @param[in] in pointer to the vector of transform coefficients + * @param[out] out pointer to the output buffer (frame) + * @param[in] pitch pitch to move to the next y line + * @param[in] flags pointer to the array of column flags (unused here) + */ +void ff_ivi_row_slant4(const int32_t *in, int16_t *out, uint32_t pitch, + const uint8_t *flags); + +/** + * inverse 1D column slant transform + * + * @param[in] in pointer to the vector of transform coefficients + * @param[out] out pointer to the output buffer (frame) + * @param[in] pitch pitch to move to the next y line + * @param[in] flags pointer to the array of column flags: + * != 0 - non_empty column, 0 - empty one + * (this array must be filled by caller) + */ +void ff_ivi_col_slant4(const int32_t *in, int16_t *out, uint32_t pitch, + const uint8_t *flags); + +/** * DC-only inverse row slant transform */ void ff_ivi_dc_row_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |