업데이트:
도움을 주신 모든 분들 덕분에 드디어 작업을 완료할 수 있었습니다. 제가 가장 잘 이해한 바는 원본 스크립트의 스레딩에 문제가 있었고 단일(또는 소수) 사진만 캡처되었을 때 비디오 생성 명령이 실행되었다는 것입니다. 영향을 받는 기능을 변경한 방법은 다음과 같습니다. 감사합니다!
def capture_image():
try:
global image_number
total_images, interval = config["total_images"], config["interval"]
while image_number < total_images:
# Start up the camera.
camera = PiCamera()
set_camera_options(camera)
# Capture a picture.
camera.capture(dir + "/image{0:05d}.jpg".format(image_number))
camera.close()
# if image_number < (config["total_images"] - 1):
image_number += 1
print(time.localtime(), image_number, total_images)
time.sleep(interval)
# else:
print("\nTime-lapse capture complete!\n")
# TODO: This doesn't pop user into the except block below :(.
sys.exit()
except (KeyboardInterrupt, SystemExit):
print("\nTime-lapse capture cancelled.\n")
원래 질문:
저는 ffmpeg를 사용하여 Raspberry Pi 3 B의 Python 스크립트 내에서 일련의 jpg 스틸을 mp4로 컴파일하려고 합니다. 제가 실행하려는 명령은 다음과 같습니다.
ffmpeg -r 24 -i /home/pi/pi-timelapse/series-2020-11-03_19-54-33/image%05d.jpg -c:v libx264 -vf fps=25 /home/pi/pi-timelapse/series-2020-11-03_19-54-33-timelapse.mp4
Pi(또는 Mac 노트북)의 명령줄에서 해당 명령을 실행하면 완벽하게 작동하고 ~8.6MB mp4 파일을 출력합니다.
해당 명령을 호출하는 것으로 생각되는 Python 스크립트는 다음과 같습니다.
if config['create_video']:
print '\nCreating video.\n'
# os.system('avconv -framerate 20 -i ' + dir + '/image%05d.jpg -vf format=yuv420p ' + dir + '/timelapse.mp4') # noqa
command = (
"ffmpeg -r 24 -i "
+ dir
+ "/image%05d.jpg"
+ " -c:v libx264 -vf fps=25 "
+ dir
+ "-timelapse.mp4"
)
subprocess.check_output(command, shell=True)
이것을 실행하면 (VLC에서) 실제로 재생되지 않는 ~200KB mp4 파일이 지속적으로 출력됩니다. 내 추측으로는 첫 번째 스틸 이미지만 캡처하고 1/24초 길이의 단일 프레임 '비디오'라는 것입니다. pi-timelapse 폴더에서 스크립트를 실행하고 있으며 전체 경로로 실행함에도 불구하고 문제는 하위 폴더에서 모든 이미지를 가져와야 하는 %05 부분에 있다고 생각합니다. 스크립트의 cwd입니다.
터미널 출력은 다음과 같습니다.
pi@pi-timelapse:~/pi-timelapse $ python timelapse.py
Creating video.
ffmpeg version 4.1.6-1~deb10u1+rpt1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 8 (Raspbian 8.3.0-6+rpi1)
configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --libdir=/usr/lib/arm-linux-gnueabihf --cpu=arm1176jzf-s --arch=arm
WARNING: library configuration mismatch
avutil configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
avcodec configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
avformat configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
avdevice configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
avfilter configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
avresample configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
swscale configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
swresample configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
postproc configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, image2, from '/home/pi/pi-timelapse/series-2020-11-03_22-25-56/image%05d.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x10cb220] using cpu capabilities: ARMv6 NEON
[libx264 @ 0x10cb220] profile High, level 4.0
[libx264 @ 0x10cb220] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=-2 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 '/home/pi/pi-timelapse/series-2020-11-03_22-25-56-timelapse.mp4':
Metadata:
encoder : Lavf58.20.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc), 1920x1080, q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.35.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 1 fps=0.9 q=28.0 Lsize= 158kB time=00:00:00.00 bitrate=16562359.0kbits/s speed=6.84e-05x
video:157kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.498500%
[libx264 @ 0x10cb220] frame I:1 Avg QP:27.13 size:159993
[libx264 @ 0x10cb220] mb I I16..4: 3.6% 88.8% 7.6%
[libx264 @ 0x10cb220] 8x8 transform intra:88.8%
[libx264 @ 0x10cb220] coded y,uvDC,uvAC intra: 86.6% 27.3% 2.1%
[libx264 @ 0x10cb220] i16 v,h,dc,p: 4% 4% 60% 32%
[libx264 @ 0x10cb220] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 8% 5% 54% 7% 6% 5% 5% 7% 4%
[libx264 @ 0x10cb220] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 6% 41% 10% 8% 7% 6% 6% 4%
[libx264 @ 0x10cb220] i8c dc,h,v,p: 73% 9% 16% 1%
[libx264 @ 0x10cb220] kb/s:31998.60
ffmpeg -r 24 -i /home/pi/pi-timelapse/series-2020-11-03_22-25-56/image%05d.jpg -c:v libx264 -vf fps=25 /home/pi/pi-timelapse/series-2020-11-03_22-25-56-timelapse.mp4
Time-lapse capture complete!
그리고 이것은 전체 스크립트입니다(주로 다른 사람이 작성했습니다. 비디오 작성 기능을 avconv에서 ffmpeg로 변환하려고 합니다).
from picamera import PiCamera
import errno
import os
import sys
import threading
from datetime import datetime
from time import sleep
import yaml
import shlex
import pipes
from subprocess import check_call
import subprocess
config = yaml.safe_load(open(os.path.join(sys.path[0], "config.yml")))
image_number = 0
def create_timestamped_dir(dir):
try:
os.makedirs(dir)
except OSError as e:
if e.errno != errno.EEXIST:
raise
def set_camera_options(camera):
# Set camera resolution.
if config['resolution']:
camera.resolution = (
config['resolution']['width'],
config['resolution']['height']
)
# Set ISO.
if config['iso']:
camera.iso = config['iso']
# Set shutter speed.
if config['shutter_speed']:
camera.shutter_speed = config['shutter_speed']
# Sleep to allow the shutter speed to take effect correctly.
sleep(1)
camera.exposure_mode = 'off'
# Set white balance.
if config['white_balance']:
camera.awb_mode = 'off'
camera.awb_gains = (
config['white_balance']['red_gain'],
config['white_balance']['blue_gain']
)
# Set camera rotation
if config['rotation']:
camera.rotation = config['rotation']
return camera
def capture_image():
try:
global image_number
# Set a timer to take another picture at the proper interval after this
# picture is taken.
if (image_number < (config['total_images'] - 1)):
thread = threading.Timer(config['interval'], capture_image).start()
# Start up the camera.
camera = PiCamera()
set_camera_options(camera)
# Capture a picture.
camera.capture(dir + '/image{0:05d}.jpg'.format(image_number))
camera.close()
if (image_number < (config['total_images'] - 1)):
image_number += 1
else:
print '\nTime-lapse capture complete!\n'
# TODO: This doesn't pop user into the except block below :(.
sys.exit()
except KeyboardInterrupt, SystemExit:
print '\nTime-lapse capture cancelled.\n'
# Create directory based on current timestamp.
dir = os.path.join(
sys.path[0],
'series-' + datetime.now().strftime('%Y-%m-%d_%H-%M-%S')
)
create_timestamped_dir(dir)
# Kick off the capture process.
capture_image()
# TODO: These may not get called after the end of the threading process...
# Create an animated gif (Requires ImageMagick).
if config['create_gif']:
print '\nCreating animated gif.\n'
os.system('convert -delay 10 -loop 0 ' + dir + '/image*.jpg ' + dir + '-timelapse.gif') # noqa
# Create a video (Requires avconv - which is basically ffmpeg).
if config['create_video']:
print '\nCreating video.\n'
# os.system('avconv -framerate 20 -i ' + dir + '/image%05d.jpg -vf format=yuv420p ' + dir + '/timelapse.mp4') # noqa
command = (
"ffmpeg -r 24 -i "
+ dir
+ "/image%05d.jpg"
+ " -c:v libx264 -vf fps=25 "
+ dir
+ "-timelapse.mp4"
)
subprocess.check_output(command, shell=True)
print("\n" + command + "\n")
답변1
python3을 사용하는 RPi 2B에서 다음 명령으로 성공했습니다.
command = [
"ffmpeg", "-r", "24",
"-pattern_type", "glob", "-i", dir + "/20160205_1730???.JPG",
"-c:v", "libx264", "-vf", "fps=25",
"/tmp/" + "timelapse.mp4"
]
"20160205_1730430.JPG"와 같은 파일이 존재하는데도 "%03d" 패턴을 시도했을 때 ffmpeg가 내 파일을 찾을 수 없습니다. 그러나 해당 오류는 숨겨지지 않고 빨간색으로 보고되었습니다.
브라우저에서 영화를 볼 수 없었지만 mplayer에는 문제가 없었으며 다음과 같이 보고했습니다.
Clip info:
major_brand: isom
minor_version: 512
compatible_brands: isomiso2avc1mp41
encoder: Lavf57.71.100
Load subtitles in /tmp/
Audio: no sound
Starting playback...
Movie-Aspect is undefined - no prescaling applied.
VO: [x11] 2592x1944 => 2592x1944 Planar YV12
[swscaler @ 0x55f9ace4d420]bicubic scaler, from yuv420p to bgra using MMXEXT
[swscaler @ 0x55f9ace4d420]using unscaled yuv420p -> bgra special converter