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Implement pipeless scene detection for basic video inputs #847

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merged 1 commit into from
May 27, 2024
Merged

Implement pipeless scene detection for basic video inputs #847

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5 changes: 3 additions & 2 deletions Cargo.lock
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3 changes: 2 additions & 1 deletion av1an-core/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,8 @@ crossbeam-channel = "0.5.1"
crossbeam-utils = "0.8.5"
textwrap = "0.16.0"
path_abs = "0.5.1"
av-scenechange = { version = "0.11.0", default-features = false, features = [
av-scenechange = { version = "0.12.0", default-features = false, features = [
"ffmpeg",
"vapoursynth",
] }
y4m = "0.8.0"
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31 changes: 18 additions & 13 deletions av1an-core/src/scene_detect.rs
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Expand Up @@ -5,6 +5,7 @@ use std::thread;
use ansi_term::Style;
use anyhow::bail;
use av_scenechange::decoder::Decoder;
use av_scenechange::ffmpeg::FfmpegDecoder;
use av_scenechange::vapoursynth::VapoursynthDecoder;
use av_scenechange::{detect_scene_changes, DetectionOptions, SceneDetectionSpeed};
use ffmpeg::format::Pixel;
Expand Down Expand Up @@ -263,19 +264,23 @@ fn build_decoder(
let input_pix_format = crate::ffmpeg::get_pixel_format(path.as_ref())
.unwrap_or_else(|e| panic!("FFmpeg failed to get pixel format for input video: {e:?}"));
bit_depth = encoder.get_format_bit_depth(sc_pix_format.unwrap_or(input_pix_format))?;
Decoder::Y4m(y4m::Decoder::new(
Command::new("ffmpeg")
.args(["-r", "1", "-i"])
.arg(path)
.args(filters.as_ref())
.args(["-f", "yuv4mpegpipe", "-strict", "-1", "-"])
.stdin(Stdio::null())
.stdout(Stdio::piped())
.stderr(Stdio::null())
.spawn()?
.stdout
.unwrap(),
)?)
if !filters.is_empty() {
Decoder::Y4m(y4m::Decoder::new(
Command::new("ffmpeg")
.args(["-r", "1", "-i"])
.arg(path)
.args(filters.as_ref())
.args(["-f", "yuv4mpegpipe", "-strict", "-1", "-"])
.stdin(Stdio::null())
.stdout(Stdio::piped())
.stderr(Stdio::null())
.spawn()?
.stdout
.unwrap(),
)?)
} else {
Decoder::Ffmpeg(FfmpegDecoder::new(path)?)
}
}
};

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