9 juillet

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 06:02
  av1 -colorspace bt709 Error reinitializing filters - Vox Newest 'ffmpeg' Questions - Stack Overflow
  ffmpeg 7.1.1 svt-av1 2.3.0 command: ./ffmpeg7 -y -i src.mp4 -c:v libsvtav1 -colorspace bt709 -an -f mp4 out.mp4 src.mp4: color_range=tv color_space=ycgco color_primaries=bt709 color_transfer=bt709 I get error: [vf#0:0 ⓐ 0x56391fc13e00] Error reinitializing filters! [vf#0:0 ⓐ 0x56391fc13e00] Task finished with error code: -22 (Invalid argument) [vf#0:0 ⓐ 0x56391fc13e00] Terminating thread with return code -22 (Invalid argument) [vost#0:0/libsvtav1 ⓐ 0x56391fc13fc0] Could not open encoder before EOF [vost#0:0/libsvtav1 ⓐ (...)
• 05:43
  Can I use t with drawbox to simulate a playhead over a waveform in a generated video? - terrorrussia-keeps-killing Newest 'ffmpeg' Questions - Stack Overflow
  I want to simulate a playhead moving over a waveform, like when playing a track in an audio editor. As far as I understand, I can generate this effect if I have both the audio file and an image of the waveform. declare -r DURATION=$(ffprobe -i audio.flac -show_entries format=duration -v quiet -of csv="p=0") ffmpeg -hide_banner -loop 1 -framerate 30 -i waveform.png -i audio.flac \\ -filter_complex " drawtext=text='%pts\\\\:hms -- %n -- %pts\\\\:flt':x=32:y=32:fontsize=24:fontcolor=blackⓐ0.75:box=1,  (...)
• 01:57
  UserWarning: x bytes wanted but 0 bytes read at frame index y (out of a total z frames), at time q sec. Using the last valid frame instead - Wiz Newest 'ffmpeg' Questions - Stack Overflow
  I have a script which subclips a larger video and then stitches needed parts together using concatenate and write video file in moviepy. But the problem is everytime i run the script i get the video but the audio is off sync, usually the audio starts normally, but over time becomes delayed. I suspect it is because i want to concatenate around 220 smaller mp4 videos into one big mp4 video, but every smaller clips receives the error:'UserWarning: In file test.mp4, 1555200 bytes wanted but 0 bytes read at frame index y (out of a total y+1 frames), at time x sec. Using the last (...)

8 juillet

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:07
  FFMPEG: Track Extraction (-c copy) does not work [closed] - Justus Newest 'ffmpeg' Questions - Stack Overflow
  Extract Audio without reencoding My ffmpeg command looks like this: ffmpeg -hide_banner -y -i test.mp4 -map 0 -c:a copy test1.mp3 It should: Extract Audio Tracks(Currently only one!) from a given Video File Write the data(very fast). No reencoding. <- This is the broken part Here is the ffmpeg output: [mp3 ⓐ 0000026cac583cc0] Invalid audio stream. Exactly one MP3 audio stream is required. [out#0/mp3 ⓐ 0000026cad12ae80] Could not write header (incorrect codec parameters ?): Invalid argument Invalid argument I tried(nothing is (...)
• 09:15
  How to add a time limit for ffmpeg multiple outputting download? [closed] - Nycelia Newest 'ffmpeg' Questions - Stack Overflow
  I've been trying to get multiple outputs with different duration of segments from a playlist url using ffmpeg. Example: 120 seconds of a live stream. One output must download 8 times 15 seconds segments. Other output must download 4 times 30 seconds segments. Both outputs will have the same content, but with different durations. It works fine when I use a single output, but with 2 outputs, it's not limited to 120 seconds. Instead it just keeps downloading. Note: I know I could get a single output and divide it into segments later, but I need this approach. ffmpeg -t 120 (...)
• 15:07
  No such filter in ffmpeg - sneha desai Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create the slideshow with below command. Here is the command I have executed: ffmpeg -loop 1 -t 1 -i /sdcard/input0.png -loop 1 -t 1 -i /sdcard/input1.png -loop 1 -t 1 -i /sdcard/input2.png -loop 1 -t 1 -i /sdcard/input3.png -loop 1 -t 1 -i /sdcard/input4.png -filter_complex "[0:v]trim=duration=15,fade=t=out:st=14.5:d=0.5[v0]; [1:v]trim=duration=15,fade=t=in:st=0:d=0.5,fade=t=out:st=14.5:d=0.5[v1]; [2:v]trim=duration=15,fade=t=in:st=0:d=0.5,fade=t=out:st=14.5:d=0.5[v2];  (...) -- https://github.com/WritingMinds/ffmpeg-android-java
• 10:38
  Why does increasing video bitrate with ffmpeg not improve quality - zahntheo Newest 'ffmpeg' Questions - Stack Overflow
  I downloaded a video from YouTube Shorts for testing. The original video has the following metadata for the video stream: [STREAM] index=0 codec_name=av1 codec_long_name=Alliance for Open Media AV1 profile=Main codec_type=video codec_tag_string=av01 codec_tag=0x31307661 width=608 height=1080 coded_width=608 coded_height=1080 closed_captions=0 film_grain=0 has_b_frames=0 sample_aspect_ratio=N/A display_aspect_ratio=N/A pix_fmt=yuv420p level=4 color_range=tv color_space=bt709 color_transfer=bt709 color_pr