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Ayoub Nabil Boubagrat 5c395992f9 swresample/rematrix: handle top-back channels 
top-back channels are currently left unaccounted and can be dropped during downmixing.

when the output retains top-front channels, follow IAMF 1.1.0 and fold top-back into top-front at 0.707. prefer this path over ear-level rear channels to preserve the height layer in x.1.4 to x.1.2 downmixes.

when no matching height output remains, map top-back to back or side channels, then fall back to front or mono outputs. handle top-back center separately and add direct tests for every matrix path.

Signed-off-by: Ayoub Nabil Boubagrat <237098474+ayoubnabil@users.noreply.github.com>
2026-08-07 02:33:33 +00:00
..
aarch64
aarch64: Fix a few misindented lines
2025-02-28 23:23:09 +02:00
arm
libswresample/arm: Change to the common indentation size
2026-04-29 13:49:27 +03:00
tests
swresample/rematrix: handle top-back channels
2026-08-07 02:33:33 +00:00
x86
swresample/x86/resample: write only int16 in the int16 resampler
2026-06-14 15:34:43 +00:00
audioconvert.c
swresample/{audioconvert,rematrix}: Don't check for HAVE_MMX
2026-02-13 09:21:33 +01:00
audioconvert.h
avutil/internal, swresample/audioconvert: Remove cpu.h inclusions
2021-07-22 14:33:45 +02:00
dither_template.c
…
dither.c
avutil/common: Don't auto-include mem.h
2024-03-31 00:08:43 +01:00
libswresample.v
…
log2_tab.c
…
Makefile
swresample/rematrix: handle top-back channels
2026-08-07 02:33:33 +00:00
noise_shaping_data.c
swresample/noise_shaping_data: Remove unused tables
2022-06-15 04:58:14 +02:00
options.c
avutil/common: Don't auto-include mem.h
2024-03-31 00:08:43 +01:00
rematrix_template.c
swresample/rematrix_template: Constify get_mix_any_func
2025-09-15 17:52:22 +02:00
rematrix.c
swresample/rematrix: handle top-back channels
2026-08-07 02:33:33 +00:00
resample_dsp.c
swresample/x86/Makefile: Only compile ASM init files when X86ASM is enabled
2025-11-30 22:20:13 +01:00
resample_template.c
swresample/resample_template: add casts to avoid undefined overflows
2026-03-02 18:11:58 +01:00
resample.c
swresample/resample, soxr_resample: Use designated initializers
2025-09-13 21:25:40 +00:00
resample.h
…
soxr_resample.c
swresample/soxr_resample: pass initialized data to soxr_process() in flush()
2025-12-08 21:31:13 +00:00
swresample_frame.c
all: fix whitespace/new-line issues
2025-08-03 13:48:47 +02:00
swresample_internal.h
swresample: Check user chlayout in swr_set_matrix()
2026-02-15 20:16:11 +01:00
swresample.c
swresample: Check ch layouts in swr_alloc_set_opts2()
2026-02-15 20:16:12 +01:00
swresample.h
all: fix typos found by codespell
2025-08-03 13:48:47 +02:00
swresampleres.rc
…
version_major.h
libs: Bump major version of all libraries
2026-06-23 19:15:57 +02:00
version.c
all: fix whitespace/new-line issues
2025-08-03 13:48:47 +02:00
version.h
Bump minor after release/9.0 branch on master
2026-06-26 02:47:51 +02:00