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support riscv64 builds #214

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Merged
WyattBlue merged 2 commits into from
Mar 16, 2026
Merged

support riscv64 builds #214

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122b14d
build-ffmpeg: enable riscv64
threexc Feb 5, 2026
ba38cac
ffmpeg.patch: include asm/unistd.h for libavutil
threexc Mar 16, 2026
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2 changes: 1 addition & 1 deletion .github/workflows/build-ffmpeg.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,7 @@ jobs:
matrix:
build: [ "manylinux_", "musllinux_" ]
# arch: [ "loongarch64", "ppc64le", "riscv64", "s390x" ]
arch: [ "ppc64le" ]
arch: [ "ppc64le", "riscv64" ]
steps:
- uses: actions/checkout@v6
- uses: actions/setup-python@v6
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20 changes: 16 additions & 4 deletions patches/ffmpeg.patch
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
diff --git a/configure b/configure
index 732de59292..136347a0d2 100755
index 8f9fb04115..a70c24378d 100755
--- a/configure
+++ b/configure
@@ -1886,8 +1886,6 @@ EXTERNAL_LIBRARY_GPL_LIST="
@@ -1996,8 +1996,6 @@ EXTERNAL_LIBRARY_GPL_LIST="
libdvdread
librubberband
libvidstab
Expand All @@ -11,12 +11,24 @@ index 732de59292..136347a0d2 100755
libxavs
libxavs2
libxvid
@@ -1900,6 +1898,8 @@ EXTERNAL_LIBRARY_NONFREE_LIST="
@@ -2010,6 +2008,8 @@ EXTERNAL_LIBRARY_NONFREE_LIST="
"

EXTERNAL_LIBRARY_VERSION3_LIST="
+ libx264
+ libx265
gmp
libaribb24
liblensfun
diff --git a/libavutil/riscv/cpu.c b/libavutil/riscv/cpu.c
index 8cc91625c7..481d63a39f 100644
--- a/libavutil/riscv/cpu.c
+++ b/libavutil/riscv/cpu.c
@@ -36,6 +36,7 @@
#include <sys/hwprobe.h>
#elif HAVE_ASM_HWPROBE_H
#include <asm/hwprobe.h>
+#include <asm/unistd.h>
#include <sys/syscall.h>
#include <unistd.h>

5 changes: 3 additions & 2 deletions scripts/build-ffmpeg.py
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Expand Up @@ -280,11 +280,12 @@ def main():

machine = platform.machine().lower()
is_arm = machine in {"arm64", "aarch64"}
is_riscv = machine in {"riscv64"}

use_alsa = plat == "Linux"
# CUDA, AMF, and Intel VPL are not available on ARM64 Windows
use_cuda = plat in {"Linux", "Windows"} and not is_arm
use_amf = plat in {"Linux", "Windows"} and not is_arm
use_cuda = plat in {"Linux", "Windows"} and not is_arm and not is_riscv
use_amf = plat in {"Linux", "Windows"} and not is_arm and not is_riscv

# Use Intel VPL (Video Processing Library) if supported to enable Intel QSV (Quick Sync Video)
# hardware encoders/decoders on modern integrated and discrete Intel GPUs.
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