Newest 'ffmpeg' Questions - Stack Overflow

http://stackoverflow.com/questions/tagged/ffmpeg

Les articles publiés sur le site

1 | ... | 4675 | 4676 | 4677 | 4678 | 4679 | 4680 | 4681 | 4682 | 4683 | ... | 9779

Hide or show overlay with sendcmd

28 janvier 2019, par Сергей Сергеев

Sendcmd in ffmpeg

Can I hide the overlay and then show it with sendcmd?

Sendcmd in ffmpeg

28 janvier 2019, par Makes

Why sendcmd in ffmpeg works with drawtext, but does not work with scale, rotation and other filters?

Example (this code works)

ffmpeg  -i testIN.mp4 -filter_complex "[0:v]sendcmd=f=testTXT.cmd,drawtext=fontfile=PF.ttf:text='': fontcolor=white:fontsize=150" testOUT.mp4

testTXT.cmd

0 drawtext reinit 'text=111';
1 drawtext reinit 'text=222';
2 drawtext reinit 'text=333';

Example (this code does not work)

ffmpeg -i testIN.mp4 -filter_complex "[0:v]sendcmd=f=testTXT.cmd,drawbox=x=10:y=10:w=100:h=100" testOUT.mp4

testTXT.cmd

0 drawbox reinit 'x=20:y=20:w=200:h=200';
1 drawbox reinit 'x=30:y=30:w=300:h=300';
2 drawbox reinit 'x=40:y=40:w=400:h=400';

Serving live stream by using ffmpeg via rtmp protocol

28 janvier 2019, par Yusufu
I have been trying to serve my rtmp stream to web, struggling with videojs I am able to serve my static video or live stream from android screen by using ffmpeg via this command:

ffmpeg -i video7.mp4 -c:v libx264 -g 25 -preset fast -b:v 4096k -c:a libfdk_aac -ar 44100 -f flv rtmp://127.0.0.1/media_server/video.flv

So can connect it via ffplay. This part works like a charm.
```
ffplay  rtmp://127.0.0.1/media_server/video.flv
```
But couldnt watch in web. My html file here. Copied from videojs offical example
1. question : Being able to watch via ffplay on rtmp means my nginx rtmp module works well ?
2. I have been serving httml via http-server and rtmp on rtmp://127.0.0.1 without port caused problem ?
3. Any other videoplayer advice ? I have already tried hls it works but in my case creating m3u8 manifest file not desired because I am streaming live video from mobile screen record so creating new ts files nut not updated m3u8 file not for me I guess ?
4. What else I can try as a protocol ? instead of rtmp
I can share about my screenrecord and ffmpeg commands to help me or you. Thanks

Concatenating slideshows and normal videos causes audio bleeding

28 janvier 2019, par Zurechtweiser

I noticed audio bleeding with concatenated videos containing alternating slideshows and normal videos.

My commands

ffmpeg -y -ss 00:00:04.391 -to 00:02:17.171 -i "test.MP4" -r 60 -c:v libx264 -af afade=t=in:ss=0:d=1,afade=t=out:st='00\:02\:11.780':d=1 25.mp4
ffmpeg -y -i 25.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts 25f.ts

ffmpeg -y -loop 1 -i "test.JPG" -t 2 -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -shortest -r 60 -c:v libx264 -c:a aac -pix_fmt yuv420p -vf scale=-2:1080,pad=width=1920:height=1080:x=240:y=0:color=black 26.mp4
ffmpeg -y -i 26.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts 26f.ts

ffmpeg -y -i "concat:25f.ts|26f.ts" -bsf:a aac_adtstoasc -movflags faststart -c copy "final.mp4"

The rest of audio of test.MP4 bleeds into the beginning of the test.JPG-single frame slideshow.

I presumed a different framerate to cause it, but adding -r 60 didn't solve the issue.

Also it seems that the video player interpretes the final video as a set of single videos, as whenever a "new" video shows up, it stutters slightly and loses framerate.

How do I concat them without bleeding and create a final video without stuttering?

ffprobe -show_streams 25.mp4:

ffprobe version N-92246-gc2ac3b8e6a Copyright (c) 2007-2018 the FFmpeg developers
  built with gcc 8.2.1 (GCC) 20181017
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --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
  libavutil      56. 19.101 / 56. 19.101
  libavcodec     58. 33.102 / 58. 33.102
  libavformat    58. 19.102 / 58. 19.102
  libavdevice    58.  4.106 / 58.  4.106
  libavfilter     7. 37.100 /  7. 37.100
  libswscale      5.  2.100 /  5.  2.100
  libswresample   3.  2.100 /  3.  2.100
  libpostproc    55.  2.100 / 55.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '25.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.19.102
  Duration: 00:00:12.65, start: 0.000000, bitrate: 2040 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1215:1216 DAR 135:76], 1903 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
    Metadata:
      handler_name    : VideoHandle
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandle
[STREAM]
index=0
codec_name=h264
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
profile=High
codec_type=video
codec_time_base=1/120
codec_tag_string=avc1
codec_tag=0x31637661
width=1920
height=1080
coded_width=1920
coded_height=1088
has_b_frames=2
sample_aspect_ratio=1215:1216
display_aspect_ratio=135:76
pix_fmt=yuv420p
level=42
color_range=unknown
color_space=unknown
color_transfer=unknown
color_primaries=unknown
chroma_location=left
field_order=unknown
timecode=N/A
refs=1
is_avc=true
nal_length_size=4
id=N/A
r_frame_rate=60/1
avg_frame_rate=60/1
time_base=1/15360
start_pts=0
start_time=0.000000
duration_ts=193792
duration=12.616667
bit_rate=1903528
max_bit_rate=N/A
bits_per_raw_sample=8
nb_frames=757
nb_read_frames=N/A
nb_read_packets=N/A
DISPOSITION:default=1
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
TAG:language=eng
TAG:handler_name=VideoHandle
[/STREAM]
[STREAM]
index=1
codec_name=aac
codec_long_name=AAC (Advanced Audio Coding)
profile=LC
codec_type=audio
codec_time_base=1/48000
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_fmt=fltp
sample_rate=48000
channels=2
channel_layout=stereo
bits_per_sample=0
id=N/A
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/48000
start_pts=0
start_time=0.000000
duration_ts=606192
duration=12.629000
bit_rate=128049
max_bit_rate=128049
bits_per_raw_sample=N/A
nb_frames=593
nb_read_frames=N/A
nb_read_packets=N/A
DISPOSITION:default=1
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
TAG:language=eng
TAG:handler_name=SoundHandle
[/STREAM]

ffprobe -show_streams 26.mp4:

ffprobe version N-92246-gc2ac3b8e6a Copyright (c) 2007-2018 the FFmpeg developers
  built with gcc 8.2.1 (GCC) 20181017
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --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
  libavutil      56. 19.101 / 56. 19.101
  libavcodec     58. 33.102 / 58. 33.102
  libavformat    58. 19.102 / 58. 19.102
  libavdevice    58.  4.106 / 58.  4.106
  libavfilter     7. 37.100 /  7. 37.100
  libswscale      5.  2.100 /  5.  2.100
  libswresample   3.  2.100 /  3.  2.100
  libpostproc    55.  2.100 / 55.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '26.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.19.102
  Duration: 00:00:03.95, start: 0.000000, bitrate: 1814 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 2272x4608 [SAR 1:1 DAR 71:144], 1798 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[STREAM]
index=0
codec_name=h264
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
profile=High
codec_type=video
codec_time_base=1/120
codec_tag_string=avc1
codec_tag=0x31637661
width=2272
height=4608
coded_width=2272
coded_height=4608
has_b_frames=2
sample_aspect_ratio=1:1
display_aspect_ratio=71:144
pix_fmt=yuv420p
level=60
color_range=unknown
color_space=unknown
color_transfer=unknown
color_primaries=unknown
chroma_location=left
field_order=unknown
timecode=N/A
refs=1
is_avc=true
nal_length_size=4
id=N/A
r_frame_rate=60/1
avg_frame_rate=60/1
time_base=1/15360
start_pts=0
start_time=0.000000
duration_ts=60672
duration=3.950000
bit_rate=1798815
max_bit_rate=N/A
bits_per_raw_sample=8
nb_frames=237
nb_read_frames=N/A
nb_read_packets=N/A
DISPOSITION:default=1
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
TAG:language=und
TAG:handler_name=VideoHandler
[/STREAM]
[STREAM]
index=1
codec_name=aac
codec_long_name=AAC (Advanced Audio Coding)
profile=LC
codec_type=audio
codec_time_base=1/44100
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_fmt=fltp
sample_rate=44100
channels=2
channel_layout=stereo
bits_per_sample=0
id=N/A
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/44100
start_pts=0
start_time=0.000000
duration_ts=132300
duration=3.000000
bit_rate=2124
max_bit_rate=128000
bits_per_raw_sample=N/A
nb_frames=131
nb_read_frames=N/A
nb_read_packets=N/A
DISPOSITION:default=1
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
TAG:language=und
TAG:handler_name=SoundHandler
[/STREAM]

Output FFMPEG segments to GCS

28 janvier 2019, par Terrabyte

Im trying to output an ffmpeg hls stream to google cloud storage after each segment is created or at least after the entire encoding is done. Doesn anyone know how to accomplish this?

This is what i have in my bash script:

$FFMPEG -hide_banner -i "$infile" \
    $PASSVAR \
    -y \
    -codec:v "$VIDEO_CODEC" \
    -codec:a "$AUDIO_CODEC" \
    -threads "$NUMTHREADS" \
    -map 0:v \
    -map 0:a \
    -flags \
    -global_header \
    -f segment \
    -segment_list "$playlist_name" \
    -segment_time "$SEGLENGTH" \
    -segment_format mpeg_ts \
    -g "$key_frames_interval" \
    -keyint_min "$key_frames_interval" \
    $resolution \
    $bitrate \
    $FFMPEG_ADDITIONAL \
    $FFMPEG_FLAGS \
    "$OUTPUT_DIRECTORY/$output_name" | gsutil -m mv "$OUTPUT_DIRECTORY/$output_name" gs://bucket-vod-example
}

does anyone know how to output the files to gsutls as it's being encoded? I can make the output the mounted storage point of google cloud storage but encoding directly to it is extremely slow so if possible is there way to encode locally then transfer as it's being encoded?

1 | ... | 4675 | 4676 | 4677 | 4678 | 4679 | 4680 | 4681 | 4682 | 4683 | ... | 9779

Newest 'ffmpeg' Questions - Stack Overflow

Les articles publiés sur le site

Hide or show overlay with sendcmd

Sendcmd in ffmpeg

Serving live stream by using ffmpeg via rtmp protocol

Concatenating slideshows and normal videos causes audio bleeding

Output FFMPEG segments to GCS

Se connecter

Se connecter

Navigation

Sites Web

Boussole SPIP