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  • warning on compilation of ffmpeg on android

    21 août 2012, par swapnil adsure

    hey guys i am going to share my script and error please help me to solve it
    i want to compile ffmpeg on android

    '# !/bin/bash
    # Author : Dmitry Dzakhov (based on Guo Mingyu's script)

    # Creating conf.sh in ffmpeg directory
    
NDK=~/android-ndk
    
PLATFORM=$NDK/platforms/android-14/arch-arm
    
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86
    
output="conf.sh"
    

    
[ -f conf.sh ] && echo "Old $output has been removed."
    
echo '#!/bin/bash' > $output
    
echo "PREBUILT=$PREBUILT" >> $output
    
echo "PLATFORM=$PLATFORM" >> $output
    
echo './configure --target-os=linux \
    
    --prefix=./android/armv7-a \
    
    --enable-cross-compile \
    
    --extra-libs="-lgcc" \
    
    --arch=arm \
    
    --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
    
    --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
    
    --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
    
    --sysroot=$PLATFORM \
    
    --extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 -mfloat-abi=softfp -mfpu=neon -marm -march=armv7-a -mtune=cortex-a8 " \
    
    --disable-shared \
    
    --enable-static \
    
    --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog" \
    
    --enable-parsers \
    
    --enable-encoders \
    
    --enable-decoders \
    
    --enable-muxers \
    
    --enable-demuxers \
    
    --enable-swscale \
    
    --enable-swscale-alpha \
    
    --disable-ffplay \
    
    --disable-ffprobe \
    
    --enable-ffserver \
    
    --enable-network \
    
    --enable-indevs \
    
    --disable-bsfs \
    
    --enable-filters \
    
    --enable-avfilter \
    
    --enable-protocols \
    
    --disable-asm \
    
    --enable-neon' >> $output
    

    
# start configure
    
sudo chmod +x $output
    
echo "configuring..."
    
./$output || (echo configure failed && exit 1)
    

    
# modify the config.h
    
echo "modifying the config.h..."
    
sed -i "s/#define restrict restrict/#define restrict/g" config.h
    

    
# remove static functions in libavutil/libm.h
    
echo "removing static functions in libavutil/libm.h..."
    
sed -i "/static/,/}/d" libavutil/libm.h
    

    
# modify Makefiles
    
echo "modifying Makefiles..."
    
sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libavcodec/Makefile
    
sed -i "/include \$(SUBDIR)..\/config.mak/d" libavcodec/Makefile
    
sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libavfilter/Makefile
    
sed -i "/include \$(SUBDIR)..\/config.mak/d" libavfilter/Makefile
    
sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libavformat/Makefile
    
sed -i "/include \$(SUBDIR)..\/config.mak/d" libavformat/Makefile
    
sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libavutil/Makefile
    
sed -i "/include \$(SUBDIR)..\/config.mak/d" libavutil/Makefile
    
sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libpostproc/Makefile
    
sed -i "/include \$(SUBDIR)..\/config.mak/d" libpostproc/Makefile
    
sed -i "/include \$(SUBDIR)..\/subdir.mak/d" libswscale/Makefile
    
sed -i "/include \$(SUBDIR)..\/config.mak/d" libswscale/Makefile
    

    
# generate av.mk in ffmpeg
    
echo "generating av.mk in ffmpeg..."
    
echo '# LOCAL_PATH is one of libavutil, libavcodec, libavformat, or libswscale
    

    
#include $(LOCAL_PATH)/../config-$(TARGET_ARCH).mak
    
include $(LOCAL_PATH)/../config.mak
    

    
OBJS :=
    
OBJS-yes :=
    
MMX-OBJS-yes :=
    
include $(LOCAL_PATH)/Makefile
    

    
# collect objects
    
OBJS-$(HAVE_MMX) += $(MMX-OBJS-yes)
    
OBJS += $(OBJS-yes)
    

    
FFNAME := lib$(NAME)
    
FFLIBS := $(foreach,NAME,$(FFLIBS),lib$(NAME))
    
FFCFLAGS  = -DHAVE_AV_CONFIG_H -Wno-sign-compare -Wno-switch -Wno-pointer-sign
    
FFCFLAGS += -DTARGET_CONFIG=\"config-$(TARGET_ARCH).h\"
    

    
ALL_S_FILES := $(wildcard $(LOCAL_PATH)/$(TARGET_ARCH)/*.S)
    
ALL_S_FILES := $(addprefix $(TARGET_ARCH)/, $(notdir $(ALL_S_FILES)))
    

    
ifneq ($(ALL_S_FILES),)
    
ALL_S_OBJS := $(patsubst %.S,%.o,$(ALL_S_FILES))
    
C_OBJS := $(filter-out $(ALL_S_OBJS),$(OBJS))
    
S_OBJS := $(filter $(ALL_S_OBJS),$(OBJS))
    
else
    
C_OBJS := $(OBJS)
    
S_OBJS :=
    
endif
    

    
C_FILES := $(patsubst %.o,%.c,$(C_OBJS))
    
S_FILES := $(patsubst %.o,%.S,$(S_OBJS))
    

    
FFFILES := $(sort $(S_FILES)) $(sort $(C_FILES))' > av.mk
    

    
echo 'include $(all-subdir-makefiles)' > ../Android.mk
    

    
echo 'LOCAL_PATH := $(call my-dir)
    
include $(CLEAR_VARS)
    
LOCAL_STATIC_LIBRARIES := libavformat libavcodec libavutil libpostproc libswscale
    
LOCAL_MODULE := ffmpeg
    
include $(BUILD_SHARED_LIBRARY)
    
include $(call all-makefiles-under,$(LOCAL_PATH))' > Android.mk
    

    
echo 'LOCAL_PATH := $(call my-dir)
    
include $(CLEAR_VARS)
    
include $(LOCAL_PATH)/../av.mk
    
LOCAL_SRC_FILES := $(FFFILES)
    
LOCAL_C_INCLUDES :=        \
    
    $(LOCAL_PATH)        \
    
    $(LOCAL_PATH)/..
    
LOCAL_CFLAGS += $(FFCFLAGS)
    
LOCAL_CFLAGS += -include "string.h" -Dipv6mr_interface=ipv6mr_ifindex
    
LOCAL_LDLIBS := -lz
    
LOCAL_STATIC_LIBRARIES := $(FFLIBS)
    
LOCAL_MODULE := $(FFNAME)
    
include $(BUILD_STATIC_LIBRARY)' > libavformat/Android.mk
    

    
echo 'LOCAL_PATH := $(call my-dir)
    
include $(CLEAR_VARS)
    
include $(LOCAL_PATH)/../av.mk
    
LOCAL_SRC_FILES := $(FFFILES)
    
LOCAL_C_INCLUDES :=        \
    
    $(LOCAL_PATH)        \
    
    $(LOCAL_PATH)/..
    
LOCAL_CFLAGS += $(FFCFLAGS)
    
LOCAL_CFLAGS += -std=c99
    
LOCAL_LDLIBS := -lz
    
LOCAL_STATIC_LIBRARIES := $(FFLIBS)
    
LOCAL_MODULE := $(FFNAME)
    
include $(BUILD_STATIC_LIBRARY)' > libavcodec/Android.mk
    

    
echo 'LOCAL_PATH := $(call my-dir)
    
include $(CLEAR_VARS)
    
include $(LOCAL_PATH)/../av.mk
    
LOCAL_SRC_FILES := $(FFFILES)
    
LOCAL_C_INCLUDES :=        \
    
    $(LOCAL_PATH)        \
    
    $(LOCAL_PATH)/..
    
LOCAL_CFLAGS += $(FFCFLAGS)
    
LOCAL_STATIC_LIBRARIES := $(FFLIBS)
    
LOCAL_MODULE := $(FFNAME)
    
include $(BUILD_STATIC_LIBRARY)' > libavfilter/Android.mk
    

    
echo 'LOCAL_PATH := $(call my-dir)
    
include $(CLEAR_VARS)
    
include $(LOCAL_PATH)/../av.mk
    
LOCAL_SRC_FILES := $(FFFILES)
    
LOCAL_C_INCLUDES :=        \
    
    $(LOCAL_PATH)        \
    
    $(LOCAL_PATH)/..
    
LOCAL_CFLAGS += $(FFCFLAGS)
    
LOCAL_STATIC_LIBRARIES := $(FFLIBS)
    
LOCAL_MODULE := $(FFNAME)
    
include $(BUILD_STATIC_LIBRARY)' > libavutil/Android.mk
    

    
echo 'LOCAL_PATH := $(call my-dir)
    
include $(CLEAR_VARS)
    
include $(LOCAL_PATH)/../av.mk
    
LOCAL_SRC_FILES := $(FFFILES)
    
LOCAL_C_INCLUDES :=        \
    
    $(LOCAL_PATH)        \
    
    $(LOCAL_PATH)/..
    
LOCAL_CFLAGS += $(FFCFLAGS)
    
LOCAL_STATIC_LIBRARIES := $(FFLIBS)
    
LOCAL_MODULE := $(FFNAME)
    
include $(BUILD_STATIC_LIBRARY)' > libpostproc/Android.mk
    

    
echo 'LOCAL_PATH := $(call my-dir)
    
include $(CLEAR_VARS)
    
include $(LOCAL_PATH)/../av.mk
    
LOCAL_SRC_FILES := $(FFFILES)
    
LOCAL_C_INCLUDES :=        \
    
    $(LOCAL_PATH)        \
    
    $(LOCAL_PATH)/..
    
LOCAL_CFLAGS += $(FFCFLAGS)
    
LOCAL_STATIC_LIBRARIES := $(FFLIBS)
    
LOCAL_MODULE := $(FFNAME)
    
include $(BUILD_STATIC_LIBRARY)' > libswscale/Android.mk
    

    
# start build!
    
echo "start ndk-building..."
    
cd ../..
    
$NDK/ndk-build
    
# Change previous line to "$NDK/ndk-build V=1" if you'll get errors. This will give some more information.'

    and here is the error i got

    WARNING : /Users/swapnil/android-ndk/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.
    WARNING : Compiler does not indicate floating-point ABI, guessing soft.
    modifying the config.h

  • Multicast video stream from Dahua IP surveillance camera - ffmpeg etc [closed]

    23 mai, par Jaroslav Mazurak

    I have a Dahua IP surveillance camera and want to get the video via a multicast stream.

    


    In the camera settings, I enabled Multicast streaming, IP 239.240.1.2, and port 40000 (the default). The RTSP port is 554 (the default).

    


    Neither VLC 3.0.21 nor ffmpeg 7.1.1 work when I try to use multicast. Both of them work when I use a unicast. OS is Windows 11 x64. Both applications are allowed in the Windows firewall (any protocol, all networks ; same result if the firewall is disabled completely). I have Wireshark installed, and I see that when a client requests the stream via RTSP, the multicast traffic from the camera is present ; ffmpeg determines the stream but doesn't capture any video, and the output file is empty (it contains only the header and no video). When I use unicast, the correct output video file is saved.

    


    I have no idea what I'm doing wrong, and why ffmpeg (and VLC) doesn't capture anything in the multicast mode.

    


    Here are the ffmpeg logs for multicast and unicast modes.

    


    Multicast :

    


    ffmpeg -fflags nobuffer -flags low_delay -timeout 10M -stats -rtsp_transport udp_multicast -i "rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0&unicast=false" -acodec copy -vcodec copy -y output.mkv

ffmpeg version 7.1.1-full_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 14.2.0 (Rev1, Built by MSYS2 projffmpeg -fflags nobuffer -flags low_delay -timeout 10M -stats -i "rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0" -acodec copy -vcodec copy -y output.mkv

ffmpeg version 7.1.1-full_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, rtsp, from 'rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0':
  Metadata:
    title           : Media Server
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, 25 fps, 25 tbr, 90k tbn
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Output #0, matroska, to 'output.mkv':
  Metadata:
    title           : Media Server
    encoder         : Lavf61.7.100
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, q=2-31, 25 fps, 25 tbr, 1k tbn
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=00:00:01.32 bitrate=   0.0kbits/s speed= 2.6x    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=00:00:01.84 bitrate=   0.0kbits/s speed=1.81x    
frame=   10 fps=6.5 q=-1.0 size=       1KiB time=00:00:02.36 bitrate=   2.2kbits/s speed=1.53x    
frame=   23 fps= 11 q=-1.0 size=       1KiB time=00:00:02.88 bitrate=   1.8kbits/s speed= 1.4x    
frame=   36 fps= 14 q=-1.0 size=       1KiB time=00:00:03.40 bitrate=   1.5kbits/s speed=1.33x    
frame=   49 fps= 16 q=-1.0 size=       1KiB time=00:00:03.92 bitrate=   1.3kbits/s speed=1.27x    
frame=   62 fps= 17 q=-1.0 size=     256KiB time=00:00:04.44 bitrate= 472.3kbits/s speed=1.23x    
frame=   75 fps= 18 q=-1.0 size=     256KiB time=00:00:04.96 bitrate= 422.8kbits/s speed= 1.2x    
frame=   88 fps= 19 q=-1.0 size=     256KiB time=00:00:05.48 bitrate= 382.7kbits/s speed=1.18x    
frame=  100 fps= 19 q=-1.0 size=     256KiB time=00:00:05.96 bitrate= 351.9kbits/s speed=1.16x    
frame=  113 fps= 20 q=-1.0 size=     768KiB time=00:00:06.48 bitrate= 970.9kbits/s speed=1.14x    
frame=  126 fps= 20 q=-1.0 size=     768KiB time=00:00:07.00 bitrate= 898.8kbits/s speed=1.13x    
frame=  139 fps= 21 q=-1.0 size=     768KiB time=00:00:07.52 bitrate= 836.6kbits/s speed=1.12x    
frame=  152 fps= 21 q=-1.0 size=    1280KiB time=00:00:08.04 bitrate=1304.2kbits/s speed=1.11x    
frame=  165 fps= 21 q=-1.0 size=    1280KiB time=00:00:08.56 bitrate=1225.0kbits/s speed=1.11x    
frame=  178 fps= 22 q=-1.0 size=    1280KiB time=00:00:09.08 bitrate=1154.8kbits/s speed= 1.1x    
frame=  191 fps= 22 q=-1.0 size=    1280KiB time=00:00:09.60 bitrate=1092.3kbits/s speed= 1.1x    
frame=  203 fps= 22 q=-1.0 size=    1792KiB time=00:00:10.08 bitrate=1456.4kbits/s speed=1.09x    
frame=  217 fps= 22 q=-1.0 size=    1792KiB time=00:00:10.64 bitrate=1379.7kbits/s speed=1.09x    


[q] command received. Exiting.

[out#0/matroska @ 000001e0329cad80] video:2377KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.100389%
frame=  230 fps= 22 q=-1.0 Lsize=    2380KiB time=00:00:11.16 bitrate=1746.9kbits/s speed=1.08x    
ect)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, rtsp, from 'rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0&unicast=false':
  Metadata:
    title           : Media Server
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, 25 tbr, 90k tbn
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Output #0, matroska, to 'output.mkv':
  Metadata:
    title           : Media Server
    encoder         : Lavf61.7.100
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, q=2-31, 25 tbr, 1k tbn
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
[in#0/rtsp @ 0000014b1a80a580] Error during demuxing: Error number -138 occurred
[out#0/matroska @ 0000014b1a7ee700] video:0KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
[out#0/matroska @ 0000014b1a7ee700] Output file is empty, nothing was encoded
frame=    0 fps=0.0 q=-1.0 Lsize=       1KiB time=N/A bitrate=N/A speed=N/A    


    


    Unicast :

    


    ffmpeg -fflags nobuffer -flags low_delay -timeout 10M -stats -i "rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0" -acodec copy -vcodec copy -y output.mkv

ffmpeg version 7.1.1-full_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, rtsp, from 'rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0':
  Metadata:
    title           : Media Server
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, 25 fps, 25 tbr, 90k tbn
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Output #0, matroska, to 'output.mkv':
  Metadata:
    title           : Media Server
    encoder         : Lavf61.7.100
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, q=2-31, 25 fps, 25 tbr, 1k tbn
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=00:00:01.32 bitrate=   0.0kbits/s speed= 2.6x    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=00:00:01.84 bitrate=   0.0kbits/s speed=1.81x    
frame=   10 fps=6.5 q=-1.0 size=       1KiB time=00:00:02.36 bitrate=   2.2kbits/s speed=1.53x    
frame=   23 fps= 11 q=-1.0 size=       1KiB time=00:00:02.88 bitrate=   1.8kbits/s speed= 1.4x    
frame=   36 fps= 14 q=-1.0 size=       1KiB time=00:00:03.40 bitrate=   1.5kbits/s speed=1.33x    
frame=   49 fps= 16 q=-1.0 size=       1KiB time=00:00:03.92 bitrate=   1.3kbits/s speed=1.27x    
frame=   62 fps= 17 q=-1.0 size=     256KiB time=00:00:04.44 bitrate= 472.3kbits/s speed=1.23x    
frame=   75 fps= 18 q=-1.0 size=     256KiB time=00:00:04.96 bitrate= 422.8kbits/s speed= 1.2x    
frame=   88 fps= 19 q=-1.0 size=     256KiB time=00:00:05.48 bitrate= 382.7kbits/s speed=1.18x    
frame=  100 fps= 19 q=-1.0 size=     256KiB time=00:00:05.96 bitrate= 351.9kbits/s speed=1.16x    
frame=  113 fps= 20 q=-1.0 size=     768KiB time=00:00:06.48 bitrate= 970.9kbits/s speed=1.14x    
frame=  126 fps= 20 q=-1.0 size=     768KiB time=00:00:07.00 bitrate= 898.8kbits/s speed=1.13x    
frame=  139 fps= 21 q=-1.0 size=     768KiB time=00:00:07.52 bitrate= 836.6kbits/s speed=1.12x    
frame=  152 fps= 21 q=-1.0 size=    1280KiB time=00:00:08.04 bitrate=1304.2kbits/s speed=1.11x    
frame=  165 fps= 21 q=-1.0 size=    1280KiB time=00:00:08.56 bitrate=1225.0kbits/s speed=1.11x    
frame=  178 fps= 22 q=-1.0 size=    1280KiB time=00:00:09.08 bitrate=1154.8kbits/s speed= 1.1x    
frame=  191 fps= 22 q=-1.0 size=    1280KiB time=00:00:09.60 bitrate=1092.3kbits/s speed= 1.1x    
frame=  203 fps= 22 q=-1.0 size=    1792KiB time=00:00:10.08 bitrate=1456.4kbits/s speed=1.09x    
frame=  217 fps= 22 q=-1.0 size=    1792KiB time=00:00:10.64 bitrate=1379.7kbits/s speed=1.09x    


[q] command received. Exiting.

[out#0/matroska @ 000001e0329cad80] video:2377KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.100389%
frame=  230 fps= 22 q=-1.0 Lsize=    2380KiB time=00:00:11.16 bitrate=1746.9kbits/s speed=1.08x    


    


  • How to stream from camera to browser using ffmpeg [closed]

    7 juin, par Gabriel Furstenheim

    FFMpeg just merged support for WebRTC.

    


    If I understand correctly, this should allow to stream directly from ffmpeg to a website without the use of a server.

    


    How does this work ?

    


    ffmpeg -f dshow -i video=MyCamera ???


    


    I guess something similar to

    


    I'm guessing something like

    


    ffmpeg -f dshow -i video=MyCamera -f webrtc udp://localhost:6666


    


    Also, how would the website look like ?

    


    For simplicity, assume that everything happens in localhost

    


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