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  • Blank video as the result of converting from bmp ffmpeg [duplicate]

    1er juin 2021, par Артур Клочко
    


    Update

    


    I'm sorry, as I wrote I tried to play video via different variants and got nothing, but now I send it to myself via Telegram app, and it displays there correctly. It plays via Chrome also. Seems it is not the ffmpeg problem.

    


    I uploaded it to my site, if you are not aware, please check it via stupid uwp app or Windows Media player if you are using Windows, and if you have the same problem, please feedback and I will report it as a bug

    


    https://okumaima.com/cave.mp4

    


    


    Recently I have been using ffmpeg to convert jpg file set to mp4, and it was successfully. I used the next .bat file to do it :

    


    ffmpeg -framerate 60 -i out\%%d.jpg render.mp4


    


    Now, I am trying to do the same, but with bmp files, generated as screenshots using WinApi. Images as themselves are absolutely correct - I can open them via photos app, or anything else. Images resolution is constant and equals 2002x773.

    


    So now I am using the same .bat to make video :

    


    ffmpeg -framerate 60 -i out\%%d.bmp render.mp4


    


    It generates a tiny-size video (17 kb, for 10 bmp images, 5 mb each), that is opening by UWP video app or Windows Media program, but nothing is happening - no errors, yet no video length. If there are more images, the result video size also increases, but the video still doesn't play.

    


    Full output from ffmpeg :

    


    ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, image2, from 'rnd\%d.bmp':
  Duration: 00:00:00.17, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: bmp, bgra, 2002x773, 60 tbr, 60 tbn, 60 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (bmp (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 052fed40] using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2
[libx264 @ 052fed40] profile High 4:4:4 Predictive, level 4.2, 4:4:4, 8-bit
[libx264 @ 052fed40] 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'caev.mp4':
  Metadata:
    encoder         : Lavf58.29.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 2002x773, q=-1--1, 60 fps, 15360 tbn, 60 tbc
    Metadata:
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=   10 fps=0.0 q=-1.0 Lsize=      16kB time=00:00:00.11 bitrate=1142.4kbits/s speed=0.151x
video:15kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 6.097639%
[libx264 @ 052fed40] frame I:1     Avg QP:18.80  size:  6840
[libx264 @ 052fed40] frame P:4     Avg QP:25.73  size:  1517
[libx264 @ 052fed40] frame B:5     Avg QP:35.54  size:   426
[libx264 @ 052fed40] consecutive B-frames: 20.0% 40.0%  0.0% 40.0%
[libx264 @ 052fed40] mb I  I16..4: 21.1% 76.3%  2.6%
[libx264 @ 052fed40] mb P  I16..4:  0.6%  0.3%  0.3%  P16..4:  0.9%  0.6%  0.1%  0.0%  0.0%    skip:97.0%
[libx264 @ 052fed40] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  4.0%  0.2%  0.0%  direct: 0.0%  skip:95.6%  L0:34.5% L1:64.6% BI: 0.9%
[libx264 @ 052fed40] 8x8 transform intra:73.8% inter:10.2%
[libx264 @ 052fed40] coded y,u,v intra: 1.8% 1.5% 1.5% inter: 0.1% 0.1% 0.1%
[libx264 @ 052fed40] i16 v,h,dc,p: 52% 47%  1%  0%
[libx264 @ 052fed40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 47% 45%  8%  0%  0%  0%  0%  0%  0%
[libx264 @ 052fed40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 31% 32%  3%  0%  1%  2%  5%  2%
[libx264 @ 052fed40] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 052fed40] ref P L0: 75.8%  4.1% 15.8%  4.3%
[libx264 @ 052fed40] ref B L0: 63.5% 34.8%  1.7%
[libx264 @ 052fed40] ref B L1: 97.6%  2.4%
[libx264 @ 052fed40] kb/s:721.78


    


  • ffmpeg - android ndk build assembler messages bad instruction

    17 septembre 2016, par Madhavan Malolan

    I have compiled the latest ffmpeg source using the following build script adapted from Telegram :

    #!/bin/bash
    
#apply fix http://permalink.gmane.org/gmane.comp.video.ffmpeg.devel/203198
    

    
function build_one {
    

    
echo "Cleaning..."
    
make clean
    

    
echo "Configuring..."
    

    
./configure \
    
--cc=$CC \
    
--nm=$NM \
    
--enable-stripping \
    
--arch=$ARCH \
    
--cpu=$CPU \
    
--target-os=linux \
    
--enable-cross-compile \
    
--yasmexe=$NDK/prebuilt/darwin-x86_64/bin/yasm \
    
--prefix=$PREFIX \
    
--enable-pic \
    
--disable-shared \
    
--enable-static \
    
--cross-prefix=$CROSS_PREFIX \
    
--sysroot=$PLATFORM \
    
--extra-cflags="-Os -DANDROID $OPTIMIZE_CFLAGS -fPIE -pie --static" \
    
--extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl" \
    
--extra-libs="-lgcc" \
    
\
    
--enable-version3 \
    
--enable-gpl \
    
\
    
--disable-doc \
    
--disable-avx \
    
\
    
--disable-everything \
    
--disable-network \
    
--disable-zlib \
    
--disable-debug \
    
--disable-programs \
    
--disable-network \
    
\
    
--enable-pthreads \
    
--enable-protocol=file \
    
--enable-decoder=h264 \
    
--enable-decoder=gif \
    
--enable-demuxer=mov \
    
--enable-demuxer=gif \
    
--enable-hwaccels \
    
--enable-runtime-cpudetect \
    
--enable-asm \
    
$ADDITIONAL_CONFIGURE_FLAG
    

    
#echo "continue?"
    
#read
    
make -j8 install
    

    
}
    

    
NDK=~/Downloads/android-ndk-r12b/
    

    
#arm platform
    
PLATFORM=$NDK/platforms/android-9/arch-arm
    
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
    
LD=$PREBUILT/bin/arm-linux-androideabi-ld
    
AR=$PREBUILT/bin/arm-linux-androideabi-ar
    
NM=$PREBUILT/bin/arm-linux-androideabi-nm
    
GCCLIB=$PREBUILT/lib/gcc/arm-linux-androideabi/4.9/libgcc.a
    
ARCH=arm
    
CC=$PREBUILT/bin/arm-linux-androideabi-gcc
    
CROSS_PREFIX=$PREBUILT/bin/arm-linux-androideabi-
    

    
#arm v5
    
CPU=armv5te
    
OPTIMIZE_CFLAGS="-marm -march=$CPU"
    
PREFIX=./android/$CPU
    
ADDITIONAL_CONFIGURE_FLAG="--disable-armv6 --disable-armv6t2 --disable-vfp --disable-neon"
    
build_one
    

    
#arm v7n
    
CPU=armv7-a
    
OPTIMIZE_CFLAGS="-marm -march=$CPU"
    
PREFIX=./android/$CPU
    
ADDITIONAL_CONFIGURE_FLAG=--enable-neon
    
build_one
    

    
#x86 platform
    
PLATFORM=$NDK/platforms/android-9/arch-x86
    
PREBUILT=$NDK/toolchains/x86-4.9/prebuilt/darwin-x86_64
    
LD=$PREBUILT/bin/i686-linux-android-ld
    
AR=$PREBUILT/bin/i686-linux-android-ar
    
NM=$PREBUILT/bin/i686-linux-android-nm
    
GCCLIB=$PREBUILT/lib/gcc/i686-linux-android/4.9/libgcc.a
    
ARCH=x86
    
CC=$PREBUILT/bin/i686-linux-android-gcc
    
CROSS_PREFIX=$PREBUILT/bin/i686-linux-android-
    

    
CPU=i686
    
OPTIMIZE_CFLAGS="-march=$CPU"
    
PREFIX=./android/$CPU
    
ADDITIONAL_CONFIGURE_FLAG="--disable-mmx --disable-yasm"
    
build_one

    I copied the contents of the android/ folder generated to jni/ffmpeg/.
    I then tried to do a ndk-build, which fails with an error.

    The Android.mk file is as follows :

    LOCAL_PATH := $(call my-dir)
    

    
LOCAL_MODULE    := avutil
    
LOCAL_MODULE_FILENAME := libavutil
    
LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavutil.a
    
include $(PREBUILT_STATIC_LIBRARY)
    

    
include $(CLEAR_VARS)
    

    
LOCAL_MODULE    := avformat
    
LOCAL_MODULE_FILENAME := libavformat
    
    LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavformat.a
    
include $(PREBUILT_STATIC_LIBRARY)
    

    
include $(CLEAR_VARS)
    

    
LOCAL_MODULE    := avcodec
    
LOCAL_MODULE_FILENAME := libavcodec
    
LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavcodec.a
    
include $(PREBUILT_STATIC_LIBRARY)
    

    
include $(CLEAR_VARS)
    
LOCAL_MODULE    := avdevice
    
LOCAL_MODULE_FILENAME := libavdevice
    
LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavdevice.a
    
include $(PREBUILT_STATIC_LIBRARY)
    

    

    
include $(CLEAR_VARS)
    
LOCAL_MODULE    := avfilter
    
LOCAL_MODULE_FILENAME := libavfilter
    
LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavfilter.a
    
include $(PREBUILT_STATIC_LIBRARY)
    

    
include $(CLEAR_VARS)
    
LOCAL_MODULE    := postproc
    
LOCAL_MODULE_FILENAME := libpostproc
    
LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libpostproc.a
    
include $(PREBUILT_STATIC_LIBRARY)
    

    

    
include $(CLEAR_VARS)
    
LOCAL_MODULE    := swresample
    
LOCAL_MODULE_FILENAME := libswresample
    
LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libswresample.a
    
include $(PREBUILT_STATIC_LIBRARY)
    

    

    
include $(CLEAR_VARS)
    
LOCAL_MODULE    := swscale
    
LOCAL_MODULE_FILENAME := libswscale
    
LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libswscale.a
    
include $(PREBUILT_STATIC_LIBRARY)
    

    

    
include $(CLEAR_VARS)
    
LOCAL_PRELINK_MODULE := false
    

    
LOCAL_MODULE    := ffmpeg
    
LOCAL_CFLAGS    := -w -std=c11 -Os -DNULL=0 -DSOCKLEN_T=socklen_t -DLOCALE_NOT_USED -D_LARGEFILE_SOURCE=1 -D_FILE_OFFSET_BITS=64
    
LOCAL_CFLAGS    += -Drestrict='' -D__EMX__ -DOPUS_BUILD -DFIXED_POINT -DUSE_ALLOCA -DHAVE_LRINT -DHAVE_LRINTF -fno-math-errno
    
LOCAL_CFLAGS    += -DANDROID_NDK -DDISABLE_IMPORTGL -fno-strict-aliasing -fprefetch-loop-arrays -DAVOID_TABLES -DANDROID_TILE_BASED_DECODE -DANDROID_ARMV6_IDCT -ffast-math -D__STDC_CONSTANT_MACROS
    
LOCAL_CPPFLAGS  := -DBSD=1 -ffast-math -Os -funroll-loops -std=c++11
    
LOCAL_LDLIBS    := -ljnigraphics -llog -lz -latomic
    
LOCAL_STATIC_LIBRARIES := avformat avcodec avutil avfilter avdevice postproc swresample swscale
    
LOCAL_SRC_FILES := ffmpeg.c
    

    
include $(BUILD_SHARED_LIBRARY)

    The error thrown is :

    [armeabi-v7a] Compile thumb : ffmpeg <= ffmpeg.c
    /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s :
    Assembler messages :
    /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s:4421 :
    Error : bad instruction

    cmovg r3,r8'
     /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s:4422:
     Error: bad instruction

    cmovg r2,r3’
    /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s:4424 :
    Error : bad instruction

    cmovl r1,r3'
     /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s:4426:
     Error: bad instruction

    cmovg r3,r8’ make : ***
    [path/to/app/obj/local/armeabi-v7a/objs/ffmpeg/ffmpeg.o]
    Error 1

    I am guessing i got the compiler wrong somewhere. I am trying to build on a mac. Is there something i am missing ? I am trying to build only for armeabi-v7a.

  • Reduce latency in ffmpeg snapshot

    3 décembre 2015, par Acorian0

    I have a latency problem with FFMPEG.

    I have a streaming server running and I occasionally need to take multiple snapshots over a period of time (in the example below, 5s), and then examine the snapshots taken. Time is critical.

    With this command I take 25 frames per second over 5 seconds, meaning I will have 125 snapshots in my folder.

    ffmpeg.exe -ss 0.05 -re -i udp://239.255.0.xx:xxxx -ss 0 -vf fps=25 -to 5 -y \Test\%5d.jpg

    The -vf fps is forcing the 25 frames per second even if the server can’t provide them.

    The problem is that -ss 0.05 is not doing its job. It is supposed to delay the initial snapshot for 50 milliseconds but FFMPEG takes around 200ms to "start" the service on itself :/. This means the first snapshot is taken after around 200ms after I called the service. (200ms is way too big of a latency for my purpose... I can survive with 100ms)

    How can I force FFMPEG to start taking snapshots earlier ? Or is there a way to get snapshots, let’s say, from the buffer (e.g. start taking snapshots 150ms in the past) ?

    PS : Changing the -ss from 0.05 to 0.00 is not doing anything, I can only see the -ss doing something if the value is bigger than 0.2/0.25. Another thing, using a newer version of FFMPEG is by now impossible

    Sample OUTPUT :

    ffmpeg version 2.4.5 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Dec 30 2014 14:53:50 with gcc 4.9.2 (GCC)
    
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32thread
    
s --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-icon
    
v --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable
    
-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencor
    
e-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-l
    
ibschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-li
    
bvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-l
    
ibwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --ena
    
ble-lzma --enable-decklink --enable-zlib
    
  libavutil      54.  7.100 / 54.  7.100
    
  libavcodec     56.  1.100 / 56.  1.100
    
  libavformat    56.  4.101 / 56.  4.101
    
  libavdevice    56.  0.100 / 56.  0.100
    
  libavfilter     5.  1.100 /  5.  1.100
    
  libswscale      3.  0.100 /  3.  0.100
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  0.100 / 53.  0.100
    
[mpeg2video @ 01d77120] Invalid frame dimensions 0x0.
    
Input #0, mpegts, from 'udp://239.255.0.14:5014':
    
  Duration: N/A, start: 159.051978, bitrate: 105241 kb/s
    
  Program 1
    
    Metadata:
    
      service_name    : Service01
    
      service_provider: FFmpeg
    
    Stream #0:0[0x100]: Video: mpeg1video ([2][0][0][0] / 0x0002), yuv420p(tv), 1920x1080 [SAR 1:1 D
    
AR 16:9], 104857 kb/s, 50 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x101]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 384 kb/s
    
[swscaler @ 01d70060] deprecated pixel format used, make sure you did set range correctly
    
Output #0, image2, to 'C:\Test\%5d.jpg':
    
  Metadata:
    
    encoder         : Lavf56.4.101
    
    Stream #0:0: Video: mjpeg, yuvj420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25
    
tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc56.1.100 mjpeg
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg1video (native) -> mjpeg (native))
    
Press [q] to stop, [?] for help
    
frame=  125 fps= 25 q=24.8 Lsize=N/A time=00:00:05.00 bitrate=N/A dup=1 drop=0
    
video:9710kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

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