FFmpeg's x265 encoder on Termux is improved and faster than Debian/Android in the arm64 builds.

Subject: FFmpeg's x265 encoder on Termux is improved and faster than Debian/Android in the arm64 builds.

From: Sam Quillopas <sam.quillopas@gmail.com>

Date: Fri, 14 Apr 2023 10:18:29 +0800

Message-id: <[🔎] CACZRFQDtOhFriw=4PeeOC5Pypfio2ongF83Jm9QbZ13K4PSYrg@mail.gmail.com>

I would like to report this results of what FFmpeg's x265 encoder on Termux improves encoding performance on arm64.

I tried three programs to encode a 720p video, 60 fps with 25 seconds duration. And I got the results of how long it takes.

Termux: 3 min 12 sec

prooted Debian: 19 min 50 sec

FFmpeg Media Encoder: 8 min 38 sec

Termux's FFmpeg and x265 package gains improvements, while on Debian (unstable branch) and FFmpeg Media Encoder on Android are completely slow with an unoptimized binary (32-bit arm, noasm, see the logs). All three of them using a mobile phone with 64-bit ARM.

I uploaded three logs to compare the results.

~ $ proot-distro login debian -- ffmpeg -y -i "/storage/emulated/0/SCR_2022_06_13_21_29_39_trim.mp4" -map_metadata -1 -threads 9 -r 60 -c:v libx265 -vprofile main -preset fast -pix_fmt yuv420p -crf 15 -c:a copy "/storage/emulated/0/FFMPEG/kokomi-yuanshen-debian.mp4" ffmpeg version 5.1.3-1 Copyright (c) 2000-2022 the FFmpeg developers built with gcc 12 (Debian 12.2.0-14) configuration: --prefix=/usr --extra-version=1 --toolchain=hardened --libdir=/usr/lib/aarch64-linux-gnu --incdir=/usr/include/aarch64-linux-gnu --arch=arm64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librist --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --disable-sndio --enable-libjxl --enable-pocketsphinx --enable-librsvg --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo --enable-librav1e --enable-shared libavutil 57. 28.100 / 57. 28.100 libavcodec 59. 37.100 / 59. 37.100 libavformat 59. 27.100 / 59. 27.100 libavdevice 59. 7.100 / 59. 7.100 libavfilter 8. 44.100 / 8. 44.100 libswscale 6. 7.100 / 6. 7.100 libswresample 4. 7.100 / 4. 7.100 libpostproc 56. 6.100 / 56. 6.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/SCR_2022_06_13_21_29_39_trim.mp4': Metadata: major_brand : iso6 minor_version : 1 compatible_brands: mp42iso6avc1isom creation_time : 2022-06-13T13:29:39.000000Z Duration: 00:00:25.45, start: 0.000000, bitrate: 14758 kb/s Stream #0:0[0x1](eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown, progressive), 1520x720, 14755 kb/s, SAR 1:1 DAR 19:9, 37.72 fps, 90k tbr, 90k tbn (default) Metadata: creation_time : 2022-06-13T13:22:21.000000Z vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265)) Press [q] to stop, [?] for help x265 [info]: HEVC encoder version 3.5+1-f0c1022b6 x265 [info]: build info [Linux][GCC 12.2.0][32 bit][noasm] 8bit+10bit+12bit x265 [info]: using cpu capabilities: NEON x265 [info]: Main profile, Level-4 (Main tier) x265 [warning]: No thread pool allocated, --wpp disabled x265 [warning]: No thread pool allocated, --lookahead-slices disabled x265 [info]: Slices : 1 x265 [info]: frame threads / pool features : 9 / none x265 [info]: Coding QT: max CU size, min CU size : 64 / 8 x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra x265 [info]: ME / range / subpel / merge : hex / 57 / 2 / 2 x265 [info]: Keyframe min / max / scenecut / bias : 25 / 250 / 40 / 5.00 x265 [info]: Lookahead / bframes / badapt : 15 / 4 / 0 x265 [info]: b-pyramid / weightp / weightb : 1 / 1 / 0 x265 [info]: References / ref-limit cu / depth : 3 / on / on x265 [info]: AQ: mode / str / qg-size / cu-tree : 2 / 1.0 / 32 / 1 x265 [info]: Rate Control / qCompress : CRF-15.0 / 0.60 x265 [info]: tools: rd=2 psy-rd=2.00 rskip mode=1 signhide tmvp fast-intra x265 [info]: tools: strong-intra-smoothing deblock sao Output #0, mp4, to '/storage/emulated/0/FFMPEG/kokomi-yuanshen-debian.mp4': Metadata: encoder : Lavf59.27.100 Stream #0:0: Video: hevc (hev1 / 0x31766568), yuv420p(tv, unknown/bt470bg/unknown, progressive), 1520x720 [SAR 1:1 DAR 19:9], q=2-31, 60 fps, 15360 tbn (default) Metadata: encoder : Lavc59.37.100 libx265 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A frame= 1527 fps=1.3 q=20.5 Lsize= 19958kB time=00:00:25.40 bitrate=6436.8kbits/s dup=567 drop=0 speed=0.0213x video:19937kB audio:0kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.102910% x265 [info]: frame I: 7, Avg QP:15.20 kb/s: 64142.19 x265 [info]: frame P: 300, Avg QP:16.68 kb/s: 29124.70 x265 [info]: frame B: 1220, Avg QP:23.94 kb/s: 500.26 x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0% x265 [info]: consecutive B-frames: 0.7% 0.0% 0.0% 0.0% 99.3% encoded 1527 frames in 1190.15s (1.28 fps), 6415.67 kb/s, Avg QP:22.48 ~ $

~ $ ffmpeg -y -i "/storage/emulated/0/SCR_2022_06_13_21_29_39_trim.mp4" -map_metadata -1 -threads 9 -r 60 -c:v libx265 -vprofile main -preset fast -pix_fmt yuv420p -crf 15 -c:a copy "/storage/emulated/0/FFMPEG/kokomi-yuanshen-termux.mp4" ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers built with Android (9352603, based on r450784d1) clang version 14.0.7 (https://android.googlesource.com/toolchain/llvm-project 4c603efb0cca074e9238af8b4106c30add4418f6) configuration: --arch=aarch64 --as=aarch64-linux-android-clang --cc=aarch64-linux-android-clang --cxx=aarch64-linux-android-clang++ --nm=llvm-nm --pkg-config=/home/builder/.termux-build/_cache/android-r25c-api-24-v1/bin/pkg-config --strip=llvm-strip --cross-prefix=aarch64-linux-android- --disable-indevs --disable-outdevs --enable-indev=lavfi --disable-static --disable-symver --enable-cross-compile --enable-gnutls --enable-gpl --enable-lcms2 --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgme --enable-libmp3lame --enable-libopus --enable-librav1e --enable-libsoxr --enable-libssh --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-opencl --enable-shared --prefix=/data/data/com.termux/files/usr --target-os=android --extra-libs=-landroid-glob --disable-vulkan --enable-neon --disable-libfdk-aac libavutil 58. 2.100 / 58. 2.100 libavcodec 60. 3.100 / 60. 3.100 libavformat 60. 3.100 / 60. 3.100 libavdevice 60. 1.100 / 60. 1.100 libavfilter 9. 3.100 / 9. 3.100 libswscale 7. 1.100 / 7. 1.100 libswresample 4. 10.100 / 4. 10.100 libpostproc 57. 1.100 / 57. 1.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/SCR_2022_06_13_21_29_39_trim.mp4': Metadata: major_brand : iso6 minor_version : 1 compatible_brands: mp42iso6avc1isom creation_time : 2022-06-13T13:29:39.000000Z Duration: 00:00:25.45, start: 0.000000, bitrate: 14758 kb/s Stream #0:0[0x1](eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown, progressive), 1520x720, 14755 kb/s, SAR 1:1 DAR 19:9, 37.72 fps, 45k tbr, 90k tbn (default) Metadata: creation_time : 2022-06-13T13:22:21.000000Z vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265)) Press [q] to stop, [?] for help x265 [info]: HEVC encoder version 3.5+95-38cf1c379 x265 [info]: build info [Linux][clang 14.0.7][64 bit] 8bit x265 [info]: using cpu capabilities: NEON x265 [info]: Main profile, Level-4 (Main tier) x265 [info]: Thread pool created using 8 threads x265 [info]: Slices : 1 x265 [info]: frame threads / pool features : 9 / wpp(12 rows) x265 [info]: Coding QT: max CU size, min CU size : 64 / 8 x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra x265 [info]: ME / range / subpel / merge : hex / 57 / 2 / 2 x265 [info]: Keyframe min / max / scenecut / bias : 25 / 250 / 40 / 5.00 x265 [info]: Lookahead / bframes / badapt : 15 / 4 / 0 x265 [info]: b-pyramid / weightp / weightb : 1 / 1 / 0 x265 [info]: References / ref-limit cu / depth : 3 / on / on x265 [info]: AQ: mode / str / qg-size / cu-tree : 2 / 1.0 / 32 / 1 x265 [info]: Rate Control / qCompress : CRF-15.0 / 0.60 x265 [info]: tools: rd=2 psy-rd=2.00 rskip mode=1 signhide tmvp fast-intra x265 [info]: tools: strong-intra-smoothing lslices=4 deblock sao Output #0, mp4, to '/storage/emulated/0/FFMPEG/kokomi-yuanshen-termux.mp4': Metadata: encoder : Lavf60.3.100 Stream #0:0(eng): Video: hevc (hev1 / 0x31766568), yuv420p(tv, unknown/bt470bg/unknown, progressive), 1520x720 [SAR 1:1 DAR 19:9], q=2-31, 60 fps, 15360 tbn (default) Metadata: creation_time : 2022-06-13T13:22:21.000000Z vendor_id : [0][0][0][0] encoder : Lavc60.3.100 libx265 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A frame= 1527 fps=7.9 q=20.5 Lsize= 19952kB time=00:00:25.40 bitrate=6434.8kbits/s dup=567 drop=0 speed=0.132x video:19931kB audio:0kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.102878% x265 [info]: frame I: 7, Avg QP:15.21 kb/s: 64132.05 x265 [info]: frame P: 300, Avg QP:16.84 kb/s: 29061.07 x265 [info]: frame B: 1220, Avg QP:25.02 kb/s: 513.47 x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0% encoded 1527 frames in 192.30s (7.94 fps), 6413.67 kb/s, Avg QP:23.37 ~ $

## Termux App Info **APP_NAME**: `Termux` **PACKAGE_NAME**: `com.termux` **VERSION_NAME**: `0.118.0+9b274f9` **VERSION_CODE**: `118` **UID**: `10410` **TARGET_SDK**: `28` **IS_DEBUGGABLE_BUILD**: `true` **SE_PROCESS_CONTEXT**: `u:r:untrusted_app:s0:c154,c257,c512,c768` **SE_FILE_CONTEXT**: `u:object_r:app_data_file:s0:c154,c257,c512,c768` **SE_INFO**: `default:targetSdkVersion=28:complete` **TERMUX_APP_PACKAGE_MANAGER**: `APT` **TERMUX_APP_PACKAGE_VARIANT**: `APT_ANDROID_7` **APK_RELEASE**: `Github` **SIGNING_CERTIFICATE_SHA256_DIGEST**: `B6DA01480EEFD5FBF2CD3771B8D1021EC791304BDD6C4BF41D3FAABAD48EE5E1` ## ## Device Info ### Software **OS_VERSION**: `4.4.146` **SDK_INT**: `28` **RELEASE**: `9` **ID**: `PPR1.180610.011` **DISPLAY**: `Cherry_X960_Omega_X_03182021_v1` **INCREMENTAL**: `0318223726` **SECURITY_PATCH**: `2021-02-05` **IS_DEBUGGABLE**: `0` **IS_TREBLE_ENABLED**: `true` **TYPE**: `user` **TAGS**: `release-keys` ### Hardware **MANUFACTURER**: `Cherry_Mobile` **BRAND**: `Cherry_Mobile` **MODEL**: `Omega X` **PRODUCT**: `Omega_X` **BOARD**: `g1860ps_v2_gt_fng_g31scr_p` **HARDWARE**: `mt6763` **DEVICE**: `X960` **SUPPORTED_ABIS**: `arm64-v8a, armeabi-v7a, armeabi` ## ## Important Links ### GitHub [Termux](https://github.com/termux/termux-app) [Termux:API](https://github.com/termux/termux-api) [Termux:Boot](https://github.com/termux/termux-boot) [Termux:Float](https://github.com/termux/termux-float) [Termux:Styling](https://github.com/termux/termux-styling) [Termux:Tasker](https://github.com/termux/termux-tasker) [Termux:Widget](https://github.com/termux/termux-widget) [termux-packages](https://github.com/termux/termux-packages) ### Email [support@termux.dev](mailto:support@termux.dev) ### Reddit [r/termux](https://www.reddit.com/r/termux) ### Wiki [Termux Wiki](https://wiki.termux.com) [Termux](https://github.com/termux/termux-app/wiki) [termux-packages](https://github.com/termux/termux-packages/wiki) ##

ffmpeg -y -i "/storage/emulated/0/SCR_2022_06_13_21_29_39_trim.mp4" -map_metadata -1 -threads 9 -r 60 -c:v libx265 -vprofile main -preset fast -pix_fmt yuv420p -crf 15 -c:a copy "/storage/emulated/0/FFMPEG/kokomi-yuanshen-mediaencoder.mp4" ffmpeg version N-105291-gdcc9454ab9 Copyright (c) 2000-2022 the FFmpeg developers built with gcc 4.9.x (GCC) 20150123 (prerelease) configuration: --enable-version3 --enable-gpl --enable-nonfree --disable-indev=v4l2 --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libvpx --enable-libvorbis --enable-libtheora --enable-libopus --enable-libfdk-aac --enable-libfreetype --enable-libass --enable-libfribidi --enable-fontconfig --enable-pthreads --enable-libxvid --enable-filters --enable-openssl --enable-librtmp --disable-protocol='udp,udplite' --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libvo-amrwbenc --enable-libspeex --enable-libsoxr --enable-libwebp --enable-libxml2 --enable-libopenh264 --enable-mediacodec --enable-jni --prefix=/home/silentlexx/AndroidstudioProjects/ffmpeg/ffmpeg/build/arm64-api21-r13b --sysroot=/home/silentlexx/Android/android-ndk-r13b/platforms/android-21/arch-arm64 --arch=arm64 --disable-shared --enable-static --enable-pic --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffnvcodec --disable-avdevice --disable-debug --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-symver --cross-prefix=/home/silentlexx/Android/android-ndk-r13b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- --target-os=android --enable-cross-compile --pkg-config-flags=--static --extra-libs='-lgnustl_static -lm -lpng -l:libz.so -lpthread' --enable-asm --enable-neon --enable-libxavs2 --enable-libdav1d --enable-libaom --enable-small libavutil 57. 18.100 / 57. 18.100 libavcodec 59. 20.100 / 59. 20.100 libavformat 59. 17.101 / 59. 17.101 libavfilter 8. 25.100 / 8. 25.100 libswscale 6. 5.100 / 6. 5.100 libswresample 4. 4.100 / 4. 4.100 libpostproc 56. 4.100 / 56. 4.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/SCR_2022_06_13_21_29_39_trim.mp4': Metadata: major_brand : iso6 minor_version : 1 compatible_brands: mp42iso6avc1isom creation_time : 2022-06-13T13:29:39.000000Z Duration: 00:00:25.45, start: 0.000000, bitrate: 14758 kb/s Stream #0:0[0x1](eng): Video: h264 (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown, progressive), 1520x720, 14755 kb/s, SAR 1:1 DAR 19:9, 37.72 fps, 90k tbr, 90k tbn (default) Metadata: creation_time : 2022-06-13T13:22:21.000000Z vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265)) Press [q] to stop, [?] for help x265 [info]: HEVC encoder version 3.5+1-f0c1022b6 x265 [info]: build info [Linux][GCC 4.9.0][32 bit][noasm] 8bit x265 [info]: using cpu capabilities: ARMv6 NEON x265 [info]: Main profile, Level-4 (Main tier) x265 [info]: Thread pool created using 8 threads x265 [info]: Slices : 1 x265 [info]: frame threads / pool features : 9 / wpp(12 rows) x265 [info]: Coding QT: max CU size, min CU size : 64 / 8 x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra x265 [info]: ME / range / subpel / merge : hex / 57 / 2 / 2 x265 [info]: Keyframe min / max / scenecut / bias : 25 / 250 / 40 / 5.00 x265 [info]: Lookahead / bframes / badapt : 15 / 4 / 0 x265 [info]: b-pyramid / weightp / weightb : 1 / 1 / 0 x265 [info]: References / ref-limit cu / depth : 3 / on / on x265 [info]: AQ: mode / str / qg-size / cu-tree : 2 / 1.0 / 32 / 1 x265 [info]: Rate Control / qCompress : CRF-15.0 / 0.60 x265 [info]: tools: rd=2 psy-rd=2.00 rskip mode=1 signhide tmvp fast-intra x265 [info]: tools: strong-intra-smoothing lslices=4 deblock sao Output #0, mp4, to '/storage/emulated/0/FFMPEG/kokomi-yuanshen-mediaencoder.mp4': Metadata: encoder : Lavf59.17.101 Stream #0:0: Video: hevc (hev1 / 0x31766568), yuv420p(tv, unknown/bt470bg/unknown, progressive), 1520x720 [SAR 1:1 DAR 19:9], q=2-31, 60 fps, 15360 tbn (default) Metadata: encoder : Lavc59.20.100 libx265 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A frame= 2 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A dup=1 drop=0 speed= 0x frame= 25 fps= 23 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A dup=9 drop=0 speed= 0x frame= 32 fps= 16 q=16.0 size= 0kB time=-00:00:00.01 bitrate=N/A dup=12 drop=0 speed=N/A frame= 34 fps= 12 q=25.5 size= 0kB time=00:00:00.01 bitrate= 21.0kbits/s dup=13 drop=0 speed=0.00584x frame= 35 fps=8.8 q=25.4 size= 0kB time=00:00:00.03 bitrate= 10.5kbits/s dup=13 drop=0 speed=0.00839x … … frame= 1514 fps=3.0 q=25.8 size= 19456kB time=00:00:24.68 bitrate=6457.1kbits/s dup=564 drop=0 speed=0.0485x frame= 1520 fps=3.0 q=25.8 size= 19456kB time=00:00:24.78 bitrate=6431.1kbits/s dup=566 drop=0 speed=0.0486x frame= 1524 fps=3.0 q=25.8 size= 19456kB time=00:00:24.85 bitrate=6413.8kbits/s dup=566 drop=0 speed=0.0487x frame= 1527 fps=3.0 q=13.1 size= 19712kB time=00:00:24.90 bitrate=6485.2kbits/s dup=567 drop=0 speed=0.0487x frame= 1527 fps=2.9 q=20.5 Lsize= 19952kB time=00:00:25.40 bitrate=6434.8kbits/s dup=567 drop=0 speed=0.049x video:19931kB audio:0kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.102917% x265 [info]: frame I: 7, Avg QP:15.21 kb/s: 64132.05 x265 [info]: frame P: 300, Avg QP:16.84 kb/s: 29061.07 x265 [info]: frame B: 1220, Avg QP:25.02 kb/s: 513.47 x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0% x265 [info]: consecutive B-frames: 0.7% 0.0% 0.0% 0.0% 99.3% encoded 1527 frames in 518.28s (2.95 fps), 6413.67 kb/s, Avg QP:23.37

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