568 commits

Author	SHA1	Message	Date
SABITHSAHEB	8260aefeb9	fix oob chroma source read in ihevcd_fmt_conv_422sp_to_420p	2026-06-23 09:21:08 +05:30
Harish Mahendrakar	a3336a27f4	Include ihevcd_defs.h and ihevcd_structs.h in risc function selector	2026-06-22 20:01:44 -07:00
Harish Mahendrakar	86c57003fe	Add required typecasts to fix warnings	2026-06-20 16:59:17 -07:00
SABITHSAHEB	5ad6b71310	hevcdec: avoid signed left shift overflow building coeff bitmasks	2026-06-20 10:34:06 -07:00
Sushant	646ee99888	libhevc: Direct memcpy and memset calls to enable _FORTIFY_SOURCE ... Bypass wrappers functions for memcpy and memset, calling standard C library functions directly. This allows _FORTIFY_SOURCE to perform compile-time safety checks. Bug: 514722372 Test: ./hevcdec Change-Id: Id9faf0919ecedfd1833d40a7fbf6ddac454628b4	2026-06-18 06:44:56 -07:00
Vivek R Jadhav	e7d529d271	hevcdec: add support for chroma qp offset list ... Test: ./hevcdec Change-Id: I40411c04ab00d7e23843eb1d033c4943e3ec86e8	2026-06-18 06:42:01 -07:00
Vivek R Jadhav	a0296d9951	libhevcdec: Fix number of TU's allocated for YUV422 ... Fixed num of TU and subTU allocated for YUV422 Test: ./hevcdec Change-Id: I40411c04ab00d7e23843ea1d033c4943e4ec66e5	2026-06-16 22:04:47 -07:00
Harish Mahendrakar	0d2132c3ac	Revert "Revert "libhevcdec: allow YUV422 format for decoding"" ... This reverts commit 97c1736f2d.	2026-06-11 22:48:24 -07:00
Vivek R Jadhav	df5c27d45d	libhevcdec: Add SAO boundary checks ... For 16x16 CTB sizes in chroma processing, au4_idx_tl[5] and au4_idx_tl[6] can be set to -1 at picture boundaries. Added guards to check that the index is valid (> idx_tl) before dereferencing the slice header list. Bug: 516422427 Test: ./hevc_dec_fuzzer Change-Id: I40411c04ab00d7e23843eb1d033c6953e3ec76e9	2026-06-11 22:33:05 -07:00
Vivek R Jadhav	091042fa3e	libhevcdec: Update static allocation for SAO context ... Corrected the static SAO buffer size calculation to match the partitioned buffer bounds. Luma requires 4x and Chroma requires 8x MAX_CTB_SIZE * MAX_CTB_SIZE, which is now correctly summed to allocate 12x MAX_CTB_SIZE * MAX_CTB_SIZE bytes per process thread. Bug: 484436016 Test: ./hevc_dec_fuzzer Change-Id: I40411c04ab00d7e23843eb1d033d4943e3ec76a9	2026-06-11 21:46:30 -07:00
Ram Mohan M	57d79be23a	updates to odd dimensions support - 2 ... - reduce unused memory allocations - revert unrequired alignments done to widths and height in format conversion leaf functions - pass correct strides and base address to leaf functions fixes oss-fuzz-520748344 Change-Id: I8b783d1dae8c53b68a6d3a32dbc3ffb16376851e	2026-06-07 16:06:11 -07:00
Harish Mahendrakar	1fac8cc5fe	Updates to odd dimension support. ... Reverted some of the unnecessary changes from commit: f6ef16b0f9 - Restored the format conversion structure prior to f6ef16b0f9 - No need to handle odd stride for 420 and 422 output. - Dimensions for output format 444 and 400 format can be odd Tested with few YUV444 and YUV400 odd dimension clips To generate: $ ffmpeg -f lavfi -i testsrc=s=511x511 -c:v libx265 -pix_fmt yuv444p -t 1 -tag:v hvc1 y444_511x511.hevc $ ffmpeg -f lavfi -i testsrc=s=511x511 -c:v libx265 -pix_fmt gray -t 1 -tag:v hvc1 y400_511x511.hevc To decode using hevcdec for YUV420 output format $ hevcdec -i y444_511x511.hevc -o y444_511x511.yuv --save_output 1 --num_frames -1 --chroma_format YUV_420P --enable_yuv_format 31 $ hevcdec -i y400_511x511.hevc -o y400_511x511.yuv --save_output 1 --num_frames -1 --chroma_format YUV_420P --enable_yuv_format 31 To decode using hevcdec for YUV444 output format $ hevcdec -i y444_511x511.hevc -o y444_511x511.yuv --save_output 1 --num_frames -1 --chroma_format YUV_444P --enable_yuv_format 31 To decode using hevcdec for YUV400 output format $ hevcdec -i y400_511x511.hevc -o y400_511x511.yuv --save_output 1 --num_frames -1 --chroma_format GRAY --enable_yuv_format 31 Display resulting output using ffplay by passing `-f rawvideo -pixel_format yuv420p -video_size 511x511` Change pixel_format to yuv420p/yuv444p/gray based on decoder chroma_format argument	2026-06-05 11:42:40 -07:00
Vivek R Jadhav	f6ef16b0f9	libhevcdec: Add support for odd dimensions ... Decoding streams with odd resolutions previously caused integer truncation during right-shift or division operations, leading to incorrect buffer size and stride calculations. This is fixed by applying the ALIGN2 macro to width and height across buffer metrics, dimension queries, and outargs to safely pad boundaries. Test: ./hevcdec Change-Id: I5c432aa63b0975b76baa5e59a816278087b65215	2026-06-05 10:53:38 -07:00
Vivek R Jadhav	1f0d11ce8f	libhevcdec: update chroma deblocking masks and BS shifts for YUV422/YUV444 ... Apply 0xAAAAAAAA mask for vertical chroma deblocking on YUV422 and YUV444. Apply 0xAAAAAAAA mask for horizontal chroma deblocking on YUV444. Add array indexing shifts for YUV422/YUV444 when log2_ctb_size != 6. Test: ./hevcdec Change-Id: I40411c04ab00d7e23843eb1d033c5943e3ec75e9	2026-06-03 09:40:02 -07:00
Harish Mahendrakar	97c1736f2d	Revert "libhevcdec: allow YUV422 format for decoding" ... This reverts commit a4a80bc48e.	2026-05-27 07:59:18 -07:00
Harish Mahendrakar	a2a98baa6e	refactor: clean up SAO and ILF padding code ... - Deleted ihevcd_sao_ctb implementation and declaration. - Removed code under #else of SAO_PROCESS_SHIFT_CTB in ihevcd_process_slice.c. - Removed code under #if FRAME_ILF_PAD and simplified checks assuming FRAME_ILF_PAD is 0. - Deleted ihevcd_ilf_padding.c and removed it from Android.bp and libhevcdec.cmake. - Removed SAO_PROCESS_SHIFT_CTB definition in ihevcd_defs.h. - Removed FRAME_ILF_PAD definition in ihevcd_defs.h. TAG=agy CONV=ceba65ba-1766-4f4d-84f0-f7c3804a90fe	2026-05-24 10:11:19 -07:00
Harish Mahendrakar	cdd7c565e0	Fix OOB access in ihevcd_fmt_conv_422sp_to_420p ... The function was processing all rows of chroma, while 420p only requires half the rows. This caused an OOB write when writing to the destination buffer. Fixed by skipping every other row of source chroma. TAG=agy Bug: ossfuzz:515832483 CONV=731dcda4-96d6-4402-b14c-f727e9983c85	2026-05-23 21:15:32 -07:00
Vivek R Jadhav	a4a80bc48e	libhevcdec: allow YUV422 format for decoding ... Test: ./hevcdec Change-Id: I40411c04ab00d7e23843eb1d033c4543e4ec63e9	2026-05-21 08:23:13 -07:00
Vivek R Jadhav	2f827d5db0	libhevcdec: Update deblock modules for yuv422 format ... Test: ./hevcdec Change-Id: I40411c04ab00d7e23843eb1d033c4543e3ec66e9	2026-05-21 08:22:42 -07:00
Vivek R Jadhav	f990e295bd	hevcdec: add support for frext profile ... Test: ./hevcdec Change-Id: I013e44e024258f2f84690fdc0109200109012026	2026-05-13 07:23:03 -07:00
Vivek R Jadhav	70ee4f3d29	libhevcdec: add support for deblock filter for yuv 444 format ... Test: ./hevcdec Change-Id: I013e44e024258f2f84690fdcc01b4cd56f0fbd19	2026-05-13 07:22:18 -07:00
Vivek R Jadhav	b6ad1290f0	hevcdec: update sao modules for chroma format idc 444 ... Test: ./hevcdec Change-Id: I013e44e024258f2f84690fdcc01b4cd52f0fbd16	2026-05-08 08:16:51 -07:00
Vivek R Jadhav	944771fb1b	libhevcdec: disable simd optimizations during 422/444 decoding. ... Test: ./hevcdec Change-Id: I40411c04ab00d7e23843eb1d033c4943e4ec86e5	2026-05-07 07:00:35 -07:00
Vivek R Jadhav	98462a6e46	libhevcdec: Unify ihevcd_function_selector_generic.c and ihevcd_function_selector_noneon.c ... Test: ./hevcdec Change-Id: I40411c04ab00d7e23843eb1d033c4943e3ec56e5	2026-05-07 07:00:35 -07:00
Vivek R Jadhav	37e4bc2135	libhevcdec: Add inter pred support for yuv422 format ... Bug: Test: ./hevcdec Change-Id: I40411c04ab00d7e23843eb1d033c4945e3ec66e9	2026-05-06 10:30:26 -07:00
Rakesh Kumar	5da3d44aef	libhevc: added BTI and PAC support in libhevc ... Test: readelf -nw libhevcdec.a Test: readelf -nW libhevcenc.a Test: atest MctsMediaV2TestCases atest MctsMediaDecoderTestCases atest MctsMediaEncoderTestCases atest MctsMediaCodecTestCases Test: hevc_dec_fuzzer hevc_enc_fuzzer Bug: 485868924 Change-Id: I7eb3c915662654d649ba4aa5793f71afff8c47e7	2026-04-02 08:34:07 -07:00
Ram Mohan M	a960c019e0	hevcdec: add support for persistent rice adaptation flag ... Test: ./hevcdec Change-Id: I835753e513b757330a4905ac29340422fc8d1590	2026-03-16 10:03:26 -07:00
Ram Mohan M	e0aec79c0d	hevcdec: add support for explicit rdpcm ... Test: ./hevcdec Change-Id: I89365bb544c3a9dc6ffc25f86f3cbf568dd2ecf4	2026-03-06 14:33:49 -08:00
Ram Mohan M	e8624b5c8f	hevcdec: add support for implicit rdpcm ... Test: ./hevcdec Change-Id: I703bdc92aaef2fed615fe1650249e6248768ddce	2026-03-06 14:33:49 -08:00
Ram Mohan M	811fa89f0e	hevcdec: fix missing initialization of during subtu's processing ... Test: ./hevcdec Change-Id: I5ab746bb2ba28bee8ea2869112db63dec0363264	2026-03-06 14:32:33 -08:00
Ram Mohan M	38e622bf6a	hevcdec: update lib for chroma format idc 422 ... - updated parser for 422 specific syntax elements - updated iqitrecon module to handle 422 subtu's. Verified functionality for intra only slices - add support 422 i/o - restrict combinations of output chroma format and internal chroma format allowed. That is, for a given chroma format idc not all output color formats are supported. The output format can now be either same as internal color format or 420p. Test: ./hevcdec Change-Id: I9dbf5c141aceb8ffcbe063aa35856eeed11e3d4f	2026-03-04 15:39:55 -08:00
Ram Mohan M	c8327aa960	hevcdec: remove unused memory allocations ... while computing chroma residue, the same buffer is used for both cb and cr. So remove allocation made for cr. Further guard the memory allocation for rext toolsets under the macro ENABLE_MAIN_REXT_PROFILE Test: ./hevcdec Change-Id: I773c9413d262a4b84bcc7ec71ac11ceaadfd839d	2026-03-04 14:11:33 -08:00
Ram Mohan M	87962d6818	hevcdec: add support for cross component prediction ... Test: ./hevcdec Change-Id: I84b76bdd7a8f0611be42fbe08bb0dca46bc40df7	2026-03-04 12:32:03 -08:00
Ram Mohan M	90f29517ee	hevcdec: add support for transform_skip_rotation_enabled_flag ... Test: ./hevcdec Change-Id: Icc083c3bf08b23a6b91c230aace3aae148cb3ec9	2026-03-04 12:32:03 -08:00
Ram Mohan M	ad0a6d8688	hevcdec: add itrans residue functions ... These functions are similar to ihevc_itrans_recon_* with the exception that instead of computing recon directly they store residue to the destination buffer. This helps with additional transformation of the residue coefficients (rotation, rdpcm, ccp) before adding to the prediction data to generate the final recon. Test: Build Change-Id: I9f84e66f5e9595162335cb152a6329a0f8d23337	2026-03-04 12:32:03 -08:00
Harish Mahendrakar	aea272ecb6	expose inter pred filter coefficients ... In subsequent commits, the unit tests will use these filter coefficients instead of defining a copy.	2026-02-28 22:40:12 +05:30
Harish Mahendrakar	2cf1cc917d	decoder: Change function pointer argument to avoid passing codec_t	2026-02-28 22:39:33 +05:30
Sushant	ab4dd06386	hevcdec: add support for scaling lists ... Test: ./hevcdec	2026-02-27 08:33:45 -08:00
Ram Mohan M	d3beb01a0d	hevcdec: integrate 32x32 chroma itrans function ... Test: ./hevcdec	2026-02-23 11:55:55 -08:00
Ram Mohan M	3d63430b77	hevcdec: improve sample app config file ... Test: ./hevcdec Change-Id: I51021c7b43f6b208db9c6dd6f9278d52ffe40eac	2026-02-23 11:55:55 -08:00
Ram Mohan M	2626e0b4d6	hevcdec: refactor iq it recon ... This change moves duplicate code to a reusable method Change-Id: Ib91ae12cd41934b8c6917d5971ea1e873f02787a	2026-02-23 11:55:55 -08:00
Ram Mohan M	e563dd60af	hevcdec: add support for transform_skip_context_enabled_flag ... Change-Id: I6655bb256d5de456a210b54d8b38a06c5ddeaee1	2026-02-23 10:59:08 -08:00
Ram Mohan M	934d05f42b	hevcdec: add support for log2 max transform skip size ... Change-Id: If72ce05af2c67dc1fbd81766cebcadfcb132983d	2026-02-23 10:59:08 -08:00
Sushant	092312e4d7	hevcdec: add intra pred chroma filter for yuv444 ... Change-Id: I013e44e024258f2f84690fdc0509200109012026	2026-02-23 10:59:08 -08:00
Rakesh Kumar	29611400fa	hevcdec: add support for internal color format 444 ... Change-Id: I013e44e024258f2f84690fdcc01b4cd52f0fbd18	2026-02-23 10:59:08 -08:00
Rakesh Kumar	135285ae8a	hevcdec: update inter prediction module for chroma format idc 444 ... Test: ./hevcdec Change-Id: I40411c04ab00d7e23843eb1d033c4943e3ec76e9	2026-02-23 10:45:25 -08:00
Ram Mohan M	546576fa3d	hevcdec: fix incorrect error checks added in sps/pps parsing ... range extension profile toolsets were guarded based on chroma format information instead of profile. This is fixed. Test: ./hevcdec -c test.cfg Change-Id: I484b07f367d46a60112d3ef7c4a431bf72047e6e	2026-02-20 11:12:39 -08:00
Ram Mohan M	4e7799d665	hevcdec: fix incorrect sampling factor used for 422 ... for 422 chroma format, the horizontal and vertical subsampling factors chosen are incorrect. This is fixed. Test: Build Change-Id: Ie82c029da6e86225f202a366c41af447b7d76ab2	2026-02-20 10:28:18 -08:00
Rakesh Kumar	04e7eb5698	hevcdec: add i/o support for color format yuv444 ... This change adds supports for handling color format yuv444 at input output level. At the input level, it ensures the bitstream buffer allocation is modified to cover 444 encoded streams and at the output level it ensures the allocation is such that decoded output can be written to 444 format. Test: ./hevcdec Change-Id: Icac7ca76a95c4140d7ef11189cdb6321961d88cc	2026-02-17 09:26:00 -08:00
Vivek Jadhav	8cbcc58d4a	libhevcdec: Remove support for YUV422 ile, RGB565 and RGBA8888 output formats ... These color formats are no longer supported. The decoder now returns an error if configured for any of these output formats Test: ./hevcdec Change-Id: I944c539000f26898d5985cd6806f2968d4365f63	2026-02-14 12:54:18 -08:00