ffmpeg -hwaccel auto -y -i "/storage/emulated/0/Android/data/com.silentlexx.ffmpeggui/files/sample.mp4" -c:v libopenh264 -q:v 5 -c:a aac -ab 128k -ar 44100 "/storage/emulated/0/Download/sample.mp4"

ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 4.9.x (GCC) 20150123 (prerelease)
configuration: --enable-gpl --enable-nonfree --disable-indev=v4l2 --disable-protocol='udp,udplite' --enable-libmp3lame --enable-libopenh264 --enable-pthreads --enable-filters --enable-libvo-amrwbenc --disable-network --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 --disable-runtime-cpudetect --enable-small --enable-version3
libavutil 58. 2.100 / 58. 2.100
libavcodec 60. 3.100 / 60. 3.100
libavformat 60. 3.100 / 60. 3.100
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/Android/data/com.silentlexx.ffmpeggui/files/sample.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
creation_time : 2010-03-20T21:29:11.000000Z
encoder : HandBrake 0.9.4 2009112300
Duration: 00:00:05.57, start: 0.000000, bitrate: 551 kb/s
Stream #0:0 0x1 : Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 560x320, 465 kb/s, 30 fps, 30 tbr, 90k tbn (default)
Metadata:
creation_time : 2010-03-20T21:29:11.000000Z
vendor_id : [0][0][0][0]
encoder : JVT/AVC Coding
Stream #0:1 0x2 : Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 83 kb/s (default)
Metadata:
creation_time : 2010-03-20T21:29:11.000000Z
vendor_id : [0][0][0][0]
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libopenh264))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libopenh264 @ 0xb400007e381096e0] [OpenH264] this = 0x0xb400007d68104090, Warning:layerId(0) doesn't support profile(578), change to UNSPECIFIC profile
[libopenh264 @ 0xb400007e381096e0] [OpenH264] this = 0x0xb400007d68104090, Warning:bEnableFrameSkip = 0,bitrate can't be controlled for RC_QUALITY_MODE,RC_BITRATE_MODE and RC_TIMESTAMP_MODE without enabling skip frame.
[libopenh264 @ 0xb400007e381096e0] [OpenH264] this = 0x0xb400007d68104090, Warning:Change QP Range from(0,51) to (12,42)
Output #0, mp4, to '/storage/emulated/0/Download/sample.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
encoder : Lavf60.3.100
Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 560x320, q=2-31, 30 fps, 15360 tbn (default)
Metadata:
creation_time : 2010-03-20T21:29:11.000000Z
vendor_id : [0][0][0][0]
encoder : Lavc60.3.100 libopenh264
Side data:
cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 0 vbv_delay: N/A
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 128 kb/s (default)
Metadata:
creation_time : 2010-03-20T21:29:11.000000Z
vendor_id : [0][0][0][0]
encoder : Lavc60.3.100 aac
frame= 0 fps=0.0 q=-0.0 size= 0kB time=00:00:00.06 bitrate= 5.7kbits/s speed=0.434x
frame= 40 fps=0.0 q=-0.0 size= 0kB time=00:00:01.30 bitrate= 0.3kbits/s speed=1.97x
frame= 78 fps= 67 q=-0.0 size= 256kB time=00:00:02.60 bitrate= 806.7kbits/s speed=2.23x
frame= 120 fps= 72 q=-0.0 size= 512kB time=00:00:03.96 bitrate=1056.9kbits/s speed=2.38x
frame= 159 fps= 73 q=-0.0 size= 768kB time=00:00:05.31 bitrate=1183.7kbits/s speed=2.44x
frame= 166 fps= 73 q=-0.0 Lsize= 826kB time=00:00:05.54 bitrate=1219.9kbits/s speed=2.45x
video:733kB audio:87kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.724037%
[aac @ 0xb400007e3810e030] Qavg: 310.816