Attempt adding quality settings to pict-rs

defaults.toml

@@ -54,6 +54,9 @@ max_file_size = 40
 max_frame_count = 900
 video_codec = "vp9"
 
+[media.video.quality]
+crf_max = 32
+
 [repo]
 type = "sled"
 path = "/mnt/sled-repo"

pict-rs.toml

@@ -188,6 +188,53 @@ max_file_size = 40
 format = "webp"
 
 
+[media.image.quality]
+## Optional: set quality for AVIF images
+# environment variable : PICTRS__MEDIA__IMAGE__QUALITY__AVIF
+# default: empty
+#
+# availabe range: 0-100
+# 100 means best quality and 0 means worst quality. Playing with numbers between 40 and 100 makes
+# the most sense.
+avif = 100
+
+## Optional: set compression for PNG images
+# environment variable : PICTRS__MEDIA__IMAGE__QUALITY__PNG
+# default: empty
+#
+# availabe range: 0-100
+# 100 means best compression and 0 means worst compression. Since PNG is a lossless format, changing
+# this value will not change how the images look.
+png = 100
+
+## Optional: set quality for JPEG images
+# environment variable : PICTRS__MEDIA__IMAGE__QUALITY__JPEG
+# default: empty
+#
+# availabe range: 0-100
+# 100 means best quality and 0 means worst quality. Playing with numbers between 60 and 100 makes
+# the most sense.
+jpeg = 100
+
+## Optional: set quality for JXL images
+# environment variable : PICTRS__MEDIA__IMAGE__QUALITY__JXL
+# default: empty
+#
+# availabe range: 0-100
+# 100 means best quality and 0 means worst quality. Playing with numbers between 40 and 100 makes
+# the most sense.
+jxl = 100
+
+## Optional: set quality for WEBP images
+# environment variable : PICTRS__MEDIA__IMAGE__QUALITY__WEBP
+# default: empty
+#
+# availabe range: 0-100
+# 100 means best quality and 0 means worst quality. Playing with numbers between 50 and 100 makes
+# the most sense.
+webp = 100
+
+
 [media.animation]
 ## Optional: max animation width (in pixels)
 # environment variable: PICTRS__MEDIA__ANIMATION__MAX_WIDTH
@@ -235,6 +282,35 @@ max_frame_count = 100
 format = "webp"
 
 
+[media.animation.quality]
+## Optional: set compression for APNG animations
+# environment variable : PICTRS__MEDIA__ANIMATION__QUALITY__APNG
+# default: empty
+#
+# availabe range: 0-100
+# 100 means best compression and 0 means worst compression. Since APNG is a lossless format,
+# changing this value will not change how the animations look.
+apng = 100
+
+## Optional: set quality for AVIF animations
+# environment variable : PICTRS__MEDIA__ANIMATION__QUALITY__AVIF
+# default: empty
+#
+# availabe range: 0-100
+# 100 means best quality and 0 means worst quality. Playing with numbers between 40 and 100 makes
+# the most sense.
+avif = 100
+
+## Optional: set quality for WEBP animations
+# environment variable : PICTRS__MEDIA__ANIMATION__QUALITY__WEBP
+# default: empty
+#
+# availabe range: 0-100
+# 100 means best quality and 0 means worst quality. Playing with numbers between 50 and 100 makes
+# the most sense.
+webp = 100
+
+
 [media.video]
 ## Optional: enable MP4 and WEBM uploads (without sound)
 # environment variable: PICTRS__MEDIA__VIDEO__ENABLE
@@ -308,6 +384,88 @@ video_codec = "vp9"
 audio_codec = "opus"
 
 
+[media.video.quality]
+## Optional: set maximum quality for all videos
+# environment variable: PICTRS__MEDIA__VIDEO__QUALITY__CRF_MAX
+# default: 32
+#
+# This value means different things for different video codecs:
+# - it ranges from 0 to 63 for AV1
+# - it ranges from 4 to 63 for VP8
+# - it ranges from 0 to 63 for VP9
+# - it ranges from 0 to 51 for H265
+# - it ranges from 0 to 51 for 8bit H264
+# - it ranges from 0 to 63 for 10bit H264
+#
+# A lower value (closer to 0) is higher quality, while a higher value (closer to 63) is lower
+# quality. Generally acceptable ranges are 15-38, where lower values are preferred for larger
+# videos
+#
+# This value may be overridden for some videos depending on whether other crf configurations are set
+# For example, if crf_max is set to 32 and crf_720 is set to 34, then all videos smaller than or
+# equal to 720p video will be encoded with a `crf` of 34, while all videos larger than 720p will be
+# encoded with a `crf` of 32
+#
+# The example values here are taken from a google document about reasonable CRF values for VP9
+# video. More information about `crf` can be found on ffmpeg's wiki
+# 
+# - AV1: https://trac.ffmpeg.org/wiki/Encode/AV1#ConstantQuality
+# - H264: https://trac.ffmpeg.org/wiki/Encode/H.264#crf
+# - H265: https://trac.ffmpeg.org/wiki/Encode/H.265#ConstantRateFactorCRF
+# - VP8: https://trac.ffmpeg.org/wiki/Encode/H.265#ConstantRateFactorCRF
+# - VP9: https://trac.ffmpeg.org/wiki/Encode/VP9#constantq
+crf_max = 12
+
+## Optional: set quality for videos up to 240p
+# environment variable: PICTRS__MEDIA__VIDEO__QUALITY__CRF_240
+# default: empty
+#
+# This value overrides `crf_max` for videos with a smaller dimension of at most 240px (240p)
+crf_240 = 37
+
+## Optional: set quality for videos up to 360p
+# environment variable: PICTRS__MEDIA__VIDEO__QUALITY__CRF_360
+# default: empty
+#
+# This value overrides `crf_max` for videos with a smaller dimension of at most 360px (260p)
+crf_360 = 36
+
+## Optional: set quality for videos up to 480p
+# environment variable: PICTRS__MEDIA__VIDEO__QUALITY__CRF_480
+# default: empty
+#
+# This value overrides `crf_max` for videos with a smaller dimension of at most 480px (480p)
+crf_480 = 33
+
+## Optional: set quality for videos up to 720p
+# environment variable: PICTRS__MEDIA__VIDEO__QUALITY__CRF_720
+# default: empty
+#
+# This value overrides `crf_max` for videos with a smaller dimension of at most 720px (720p)
+crf_720 = 32
+
+## Optional: set quality for videos up to 1080p
+# environment variable: PICTRS__MEDIA__VIDEO__QUALITY__CRF_1080
+# default: empty
+#
+# This value overrides `crf_max` for videos with a smaller dimension of at most 1080px (1080p)
+crf_1080 = 31
+
+## Optional: set quality for videos up to 1440p
+# environment variable: PICTRS__MEDIA__VIDEO__QUALITY__CRF_1440
+# default: empty
+#
+# This value overrides `crf_max` for videos with a smaller dimension of at most 1440px (1440p)
+crf_1440 = 24
+
+## Optional: set quality for videos up to 4K
+# environment variable: PICTRS__MEDIA__VIDEO__QUALITY__CRF_2160
+# default: empty
+#
+# This value overrides `crf_max` for videos with a smaller dimension of at most 2160px (4K)
+crf_2160 = 15
+
+
 ## Database configuration
 [repo]
 ## Optional: database backend to use

src/config.rs

@@ -111,6 +111,8 @@ pub(crate) fn configure() -> color_eyre::Result<(Configuration, Operation)> {
         .add_source(config::Config::try_from(&config_format)?)
         .build()?;
 
+    println!("{built:?}");
+
     let config: Configuration = built.try_deserialize()?;
 
     if let Some(save_to) = save_to {

src/config/commandline.rs

@@ -55,12 +55,20 @@ impl Args {
                 media_image_max_area,
                 media_image_max_file_size,
                 media_image_format,
+                media_image_quality_avif,
+                media_image_quality_jpeg,
+                media_image_quality_jxl,
+                media_image_quality_png,
+                media_image_quality_webp,
                 media_animation_max_width,
                 media_animation_max_height,
                 media_animation_max_area,
                 media_animation_max_file_size,
                 media_animation_max_frame_count,
                 media_animation_format,
+                media_animation_quality_apng,
+                media_animation_quality_avif,
+                media_animation_quality_webp,
                 media_video_enable,
                 media_video_allow_audio,
                 media_video_max_width,
@@ -70,6 +78,14 @@ impl Args {
                 media_video_max_frame_count,
                 media_video_codec,
                 media_video_audio_codec,
+                media_video_quality_max,
+                media_video_quality_240,
+                media_video_quality_360,
+                media_video_quality_480,
+                media_video_quality_720,
+                media_video_quality_1080,
+                media_video_quality_1440,
+                media_video_quality_2160,
                 media_filters,
                 read_only,
                 store,
@@ -86,12 +102,27 @@ impl Args {
                     timeout: client_timeout,
                 };
 
+                let image_quality = ImageQuality {
+                    avif: media_image_quality_avif,
+                    jpeg: media_image_quality_jpeg,
+                    jxl: media_image_quality_jxl,
+                    png: media_image_quality_png,
+                    webp: media_image_quality_webp,
+                };
+
                 let image = Image {
                     max_file_size: media_image_max_file_size,
                     max_width: media_image_max_width,
                     max_height: media_image_max_height,
                     max_area: media_image_max_area,
                     format: media_image_format,
+                    quality: image_quality.set(),
+                };
+
+                let animation_quality = AnimationQuality {
+                    apng: media_animation_quality_apng,
+                    avif: media_animation_quality_avif,
+                    webp: media_animation_quality_webp,
                 };
 
                 let animation = Animation {
@@ -101,6 +132,18 @@ impl Args {
                     max_area: media_animation_max_area,
                     max_frame_count: media_animation_max_frame_count,
                     format: media_animation_format,
+                    quality: animation_quality.set(),
+                };
+
+                let video_quality = VideoQuality {
+                    crf_240: media_video_quality_240,
+                    crf_360: media_video_quality_360,
+                    crf_480: media_video_quality_480,
+                    crf_720: media_video_quality_720,
+                    crf_1080: media_video_quality_1080,
+                    crf_1440: media_video_quality_1440,
+                    crf_2160: media_video_quality_2160,
+                    crf_max: media_video_quality_max,
                 };
 
                 let video = Video {
@@ -113,6 +156,7 @@ impl Args {
                     max_frame_count: media_video_max_frame_count,
                     video_codec: media_video_codec,
                     audio_codec: media_video_audio_codec,
+                    quality: video_quality.set(),
                 };
 
                 let media = Media {
@@ -404,6 +448,8 @@ struct Image {
     max_file_size: Option<usize>,
     #[serde(skip_serializing_if = "Option::is_none")]
     format: Option<ImageFormat>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    quality: Option<ImageQuality>,
 }
 
 impl Image {
@@ -412,7 +458,38 @@ impl Image {
             || self.max_height.is_some()
             || self.max_area.is_some()
             || self.max_file_size.is_some()
-            || self.format.is_some();
+            || self.format.is_some()
+            || self.quality.is_some();
+
+        if any_set {
+            Some(self)
+        } else {
+            None
+        }
+    }
+}
+
+#[derive(Debug, Default, serde::Serialize)]
+struct ImageQuality {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    avif: Option<u8>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    jpeg: Option<u8>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    jxl: Option<u8>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    png: Option<u8>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    webp: Option<u8>,
+}
+
+impl ImageQuality {
+    fn set(self) -> Option<Self> {
+        let any_set = self.avif.is_some()
+            || self.jpeg.is_some()
+            || self.jxl.is_some()
+            || self.png.is_some()
+            || self.webp.is_some();
 
         if any_set {
             Some(self)
@@ -437,6 +514,8 @@ struct Animation {
     max_file_size: Option<usize>,
     #[serde(skip_serializing_if = "Option::is_none")]
     format: Option<AnimationFormat>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    quality: Option<AnimationQuality>,
 }
 
 impl Animation {
@@ -446,7 +525,31 @@ impl Animation {
             || self.max_area.is_some()
             || self.max_frame_count.is_some()
             || self.max_file_size.is_some()
-            || self.format.is_some();
+            || self.format.is_some()
+            || self.quality.is_some();
+
+        if any_set {
+            Some(self)
+        } else {
+            None
+        }
+    }
+}
+
+#[derive(Debug, Default, serde::Serialize)]
+#[serde(rename_all = "snake_case")]
+struct AnimationQuality {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    apng: Option<u8>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    avif: Option<u8>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    webp: Option<u8>,
+}
+
+impl AnimationQuality {
+    fn set(self) -> Option<Self> {
+        let any_set = self.apng.is_some() || self.avif.is_some() || self.webp.is_some();
 
         if any_set {
             Some(self)
@@ -477,6 +580,8 @@ struct Video {
     video_codec: Option<VideoCodec>,
     #[serde(skip_serializing_if = "Option::is_none")]
     audio_codec: Option<AudioCodec>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    quality: Option<VideoQuality>,
 }
 
 impl Video {
@@ -489,7 +594,41 @@ impl Video {
             || self.max_frame_count.is_some()
             || self.max_file_size.is_some()
             || self.video_codec.is_some()
-            || self.audio_codec.is_some();
+            || self.audio_codec.is_some()
+            || self.quality.is_some();
+
+        if any_set {
+            Some(self)
+        } else {
+            None
+        }
+    }
+}
+
+#[derive(Debug, Default, serde::Serialize)]
+#[serde(rename_all = "snake_case")]
+struct VideoQuality {
+    crf_240: Option<u8>,
+    crf_360: Option<u8>,
+    crf_480: Option<u8>,
+    crf_720: Option<u8>,
+    crf_1080: Option<u8>,
+    crf_1440: Option<u8>,
+    crf_2160: Option<u8>,
+    crf_max: Option<u8>,
+}
+
+impl VideoQuality {
+    fn set(self) -> Option<Self> {
+        let any_set = self.crf_240.is_some()
+            || self.crf_360.is_some()
+            || self.crf_480.is_some()
+            || self.crf_720.is_some()
+            || self.crf_1080.is_some()
+            || self.crf_1440.is_some()
+            || self.crf_1440.is_some()
+            || self.crf_2160.is_some()
+            || self.crf_max.is_some();
 
         if any_set {
             Some(self)
@@ -609,6 +748,31 @@ struct Run {
     /// Enforce a specific format for uploaded images
     #[arg(long)]
     media_image_format: Option<ImageFormat>,
+    /// Enforce a specific quality for AVIF images
+    ///
+    /// A higher number means better quality, with a minimum value of 0 and a maximum value of 100
+    #[arg(long)]
+    media_image_quality_avif: Option<u8>,
+    /// Enforce a specific compression level for PNG images
+    ///
+    /// A higher number means better compression. PNGs will look the same regardless
+    #[arg(long)]
+    media_image_quality_png: Option<u8>,
+    /// Enforce a specific quality for JPEG images
+    ///
+    /// A higher number means better quality, with a minimum value of 0 and a maximum value of 100
+    #[arg(long)]
+    media_image_quality_jpeg: Option<u8>,
+    /// Enforce a specific quality for JXL images
+    ///
+    /// A higher number means better quality, with a minimum value of 0 and a maximum value of 100
+    #[arg(long)]
+    media_image_quality_jxl: Option<u8>,
+    /// Enforce a specific quality for WEBP images
+    ///
+    /// A higher number means better quality, with a minimum value of 0 and a maximum value of 100
+    #[arg(long)]
+    media_image_quality_webp: Option<u8>,
 
     /// The maximum width, in pixels, for uploaded animations
     #[arg(long)]
@@ -628,6 +792,21 @@ struct Run {
     /// Enforce a specific format for uploaded animations
     #[arg(long)]
     media_animation_format: Option<AnimationFormat>,
+    /// Enforce a specific compression level for APNG animations
+    ///
+    /// A higher number means better compression, APNGs will look the same regardless
+    #[arg(long)]
+    media_animation_quality_apng: Option<u8>,
+    /// Enforce a specific quality for AVIF animations
+    ///
+    /// A higher number means better quality, with a minimum value of 0 and a maximum value of 100
+    #[arg(long)]
+    media_animation_quality_avif: Option<u8>,
+    /// Enforce a specific quality for WEBP animations
+    ///
+    /// A higher number means better quality, with a minimum value of 0 and a maximum value of 100
+    #[arg(long)]
+    media_animation_quality_webp: Option<u8>,
 
     /// Whether to enable video uploads
     #[arg(long)]
@@ -656,6 +835,42 @@ struct Run {
     /// Enforce a specific audio codec for uploaded videos
     #[arg(long)]
     media_video_audio_codec: Option<AudioCodec>,
+    /// Enforce a maximum quality level for uploaded videos
+    ///
+    /// This value means different things for different video codecs:
+    /// - it ranges from 0 to 63 for AV1
+    /// - it ranges from 4 to 63 for VP8
+    /// - it ranges from 0 to 63 for VP9
+    /// - it ranges from 0 to 51 for H265
+    /// - it ranges from 0 to 51 for 8bit H264
+    /// - it ranges from 0 to 63 for 10bit H264
+    ///
+    /// A lower value (closer to 0) is higher quality, while a higher value (closer to 63) is lower
+    /// quality. Generally acceptable ranges are 15-38, where lower values are preferred for larger
+    /// videos
+    #[arg(long)]
+    media_video_quality_max: Option<u8>,
+    /// Enforce a video quality for video with a smaller dimension less than 240px
+    #[arg(long)]
+    media_video_quality_240: Option<u8>,
+    /// Enforce a video quality for video with a smaller dimension less than 360px
+    #[arg(long)]
+    media_video_quality_360: Option<u8>,
+    /// Enforce a video quality for video with a smaller dimension less than 480px
+    #[arg(long)]
+    media_video_quality_480: Option<u8>,
+    /// Enforce a video quality for video with a smaller dimension less than 720px
+    #[arg(long)]
+    media_video_quality_720: Option<u8>,
+    /// Enforce a video quality for video with a smaller dimension less than 1080px
+    #[arg(long)]
+    media_video_quality_1080: Option<u8>,
+    /// Enforce a video quality for video with a smaller dimension less than 1440px
+    #[arg(long)]
+    media_video_quality_1440: Option<u8>,
+    /// Enforce a video quality for video with a smaller dimension less than 2160px
+    #[arg(long)]
+    media_video_quality_2160: Option<u8>,
 
     /// Don't permit ingesting media
     #[arg(long)]

src/config/defaults.rs

@@ -85,8 +85,13 @@ struct ImageDefaults {
     max_height: u16,
     max_area: u32,
     max_file_size: usize,
+    quality: ImageQualityDefaults,
 }
 
+#[derive(Clone, Debug, Default, serde::Serialize)]
+#[serde(rename_all = "snake_case")]
+struct ImageQualityDefaults {}
+
 #[derive(Clone, Debug, serde::Serialize)]
 #[serde(rename_all = "snake_case")]
 struct AnimationDefaults {
@@ -95,8 +100,13 @@ struct AnimationDefaults {
     max_area: u32,
     max_frame_count: u32,
     max_file_size: usize,
+    quality: AnimationQualityDefaults,
 }
 
+#[derive(Clone, Debug, Default, serde::Serialize)]
+#[serde(rename_all = "snake_case")]
+struct AnimationQualityDefaults {}
+
 #[derive(Clone, Debug, serde::Serialize)]
 #[serde(rename_all = "snake_case")]
 struct VideoDefaults {
@@ -108,6 +118,13 @@ struct VideoDefaults {
     max_frame_count: u32,
     max_file_size: usize,
     video_codec: VideoCodec,
+    quality: VideoQualityDefaults,
+}
+
+#[derive(Clone, Debug, serde::Serialize)]
+#[serde(rename_all = "snake_case")]
+struct VideoQualityDefaults {
+    crf_max: u8,
 }
 
 #[derive(Clone, Debug, serde::Serialize)]
@@ -232,6 +249,7 @@ impl Default for ImageDefaults {
             max_height: 10_000,
             max_area: 40_000_000,
             max_file_size: 40,
+            quality: ImageQualityDefaults {},
         }
     }
 }
@@ -244,6 +262,7 @@ impl Default for AnimationDefaults {
             max_area: 65_536,
             max_frame_count: 100,
             max_file_size: 40,
+            quality: AnimationQualityDefaults {},
         }
     }
 }
@@ -259,10 +278,17 @@ impl Default for VideoDefaults {
             max_frame_count: 900,
             max_file_size: 40,
             video_codec: VideoCodec::Vp9,
+            quality: VideoQualityDefaults::default(),
         }
     }
 }
 
+impl Default for VideoQualityDefaults {
+    fn default() -> Self {
+        VideoQualityDefaults { crf_max: 32 }
+    }
+}
+
 impl Default for RepoDefaults {
     fn default() -> Self {
         Self::Sled(SledDefaults::default())

src/config/file.rs

@@ -181,6 +181,42 @@ pub(crate) struct Image {
 
     #[serde(skip_serializing_if = "Option::is_none")]
     pub(crate) format: Option<ImageFormat>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub(crate) quality: Option<ImageQuality>,
+}
+
+impl Image {
+    pub(crate) fn quality_for(&self, format: ImageFormat) -> Option<u8> {
+        self.quality
+            .as_ref()
+            .and_then(|quality| match format {
+                ImageFormat::Avif => quality.avif,
+                ImageFormat::Jpeg => quality.jpeg,
+                ImageFormat::Jxl => quality.jxl,
+                ImageFormat::Png => quality.png,
+                ImageFormat::Webp => quality.webp,
+            })
+            .map(|quality| quality.min(100))
+    }
+}
+
+#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
+pub(crate) struct ImageQuality {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub(crate) avif: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub(crate) png: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub(crate) jpeg: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub(crate) jxl: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub(crate) webp: Option<u8>,
 }
 
 #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
@@ -197,6 +233,35 @@ pub(crate) struct Animation {
 
     #[serde(skip_serializing_if = "Option::is_none")]
     pub(crate) format: Option<AnimationFormat>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub(crate) quality: Option<AnimationQuality>,
+}
+
+impl Animation {
+    pub(crate) fn quality_for(&self, format: AnimationFormat) -> Option<u8> {
+        self.quality
+            .as_ref()
+            .and_then(|quality| match format {
+                AnimationFormat::Apng => quality.apng,
+                AnimationFormat::Avif => quality.avif,
+                AnimationFormat::Gif => None,
+                AnimationFormat::Webp => quality.webp,
+            })
+            .map(|quality| quality.min(100))
+    }
+}
+
+#[derive(Clone, Debug, Default, serde::Deserialize, serde::Serialize)]
+pub(crate) struct AnimationQuality {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    apng: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    avif: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    webp: Option<u8>,
 }
 
 #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
@@ -217,10 +282,73 @@ pub(crate) struct Video {
 
     pub(crate) video_codec: VideoCodec,
 
+    pub(crate) quality: VideoQuality,
+
     #[serde(skip_serializing_if = "Option::is_none")]
     pub(crate) audio_codec: Option<AudioCodec>,
 }
 
+impl Video {
+    pub(crate) fn crf_for(&self, width: u16, height: u16) -> u8 {
+        let smaller_dimension = width.min(height);
+
+        let dimension_cutoffs = [240, 360, 480, 720, 1080, 1440, 2160];
+        let crfs = [
+            self.quality.crf_240,
+            self.quality.crf_360,
+            self.quality.crf_480,
+            self.quality.crf_720,
+            self.quality.crf_1080,
+            self.quality.crf_1440,
+            self.quality.crf_2160,
+        ];
+
+        let index = dimension_cutoffs
+            .into_iter()
+            .enumerate()
+            .find_map(|(index, dim)| {
+                if smaller_dimension <= dim {
+                    Some(index)
+                } else {
+                    None
+                }
+            })
+            .unwrap_or(crfs.len());
+
+        crfs.into_iter()
+            .skip(index)
+            .find_map(|opt| opt)
+            .unwrap_or(self.quality.crf_max)
+            .min(63)
+    }
+}
+
+#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
+pub(crate) struct VideoQuality {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    crf_240: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    crf_360: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    crf_480: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    crf_720: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    crf_1080: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    crf_1440: Option<u8>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    crf_2160: Option<u8>,
+
+    crf_max: u8,
+}
+
 impl Media {
     pub(crate) fn preprocess_steps(&self) -> Option<&[(String, String)]> {
         static PREPROCESS_STEPS: OnceCell<Vec<(String, String)>> = OnceCell::new();

src/validate.rs

@@ -119,7 +119,9 @@ async fn process_image(
     } = input.build_output(validations.format);
 
     let read = if needs_transcode {
-        Either::left(magick::convert_image(input.format, format, bytes).await?)
+        let quality = validations.quality_for(format);
+
+        Either::left(magick::convert_image(input.format, format, quality, bytes).await?)
     } else {
         Either::right(exiftool::clear_metadata_bytes_read(bytes)?)
     };
@@ -170,27 +172,31 @@ async fn process_animation(
             } = input.build_output(validations.animation.format);
 
             let read = if needs_transcode {
-                Either::left(magick::convert_animation(input, format, bytes).await?)
+                let quality = validations.animation.quality_for(format);
+
+                Either::left(magick::convert_animation(input, format, quality, bytes).await?)
             } else {
                 Either::right(Either::left(exiftool::clear_metadata_bytes_read(bytes)?))
             };
 
             Ok((InternalFormat::Animation(format), read))
         }
-        Err(_) if validate_video(bytes.len(), width, height, frames, validations.video).is_ok() => {
-            let output = OutputVideoFormat::from_parts(
-                validations.video.video_codec,
-                validations.video.audio_codec,
-                validations.video.allow_audio,
-            );
+        Err(_) => match validate_video(bytes.len(), width, height, frames, validations.video) {
+            Ok(()) => {
+                let output = OutputVideoFormat::from_parts(
+                    validations.video.video_codec,
+                    validations.video.audio_codec,
+                    validations.video.allow_audio,
+                );
 
-            let read = Either::right(Either::right(
-                magick::convert_video(input, output, bytes).await?,
-            ));
+                let read = Either::right(Either::right(
+                    magick::convert_video(input, output, bytes).await?,
+                ));
 
-            Ok((InternalFormat::Video(output.internal_format()), read))
-        }
-        Err(e) => Err(e.into()),
+                Ok((InternalFormat::Video(output.internal_format()), read))
+            }
+            Err(e) => Err(e.into()),
+        },
     }
 }
 
@@ -240,7 +246,9 @@ async fn process_video(
         validations.allow_audio,
     );
 
-    let read = ffmpeg::transcode_bytes(input, output, bytes).await?;
+    let crf = validations.crf_for(width, height);
+
+    let read = ffmpeg::transcode_bytes(input, output, crf, bytes).await?;
 
     Ok((InternalFormat::Video(output.internal_format()), read))
 }

src/validate/ffmpeg.rs

@@ -10,6 +10,7 @@ use crate::{
 pub(super) async fn transcode_bytes(
     input_format: VideoFormat,
     output_format: OutputVideoFormat,
+    crf: u8,
     bytes: Bytes,
 ) -> Result<impl AsyncRead + Unpin, FfMpegError> {
     let input_file = crate::tmp_file::tmp_file(None);
@@ -30,7 +31,14 @@ pub(super) async fn transcode_bytes(
     let output_file = crate::tmp_file::tmp_file(None);
     let output_file_str = output_file.to_str().ok_or(FfMpegError::Path)?;
 
-    transcode_files(input_file_str, input_format, output_file_str, output_format).await?;
+    transcode_files(
+        input_file_str,
+        input_format,
+        output_file_str,
+        output_format,
+        crf,
+    )
+    .await?;
 
     let tmp_two = crate::file::File::open(&output_file)
         .await
@@ -50,6 +58,7 @@ async fn transcode_files(
     input_format: VideoFormat,
     output_path: &str,
     output_format: OutputVideoFormat,
+    crf: u8,
 ) -> Result<(), FfMpegError> {
     if let Some(audio_codec) = output_format.ffmpeg_audio_codec() {
         Process::run(
@@ -70,6 +79,10 @@ async fn transcode_files(
                 audio_codec,
                 "-c:v",
                 output_format.ffmpeg_video_codec(),
+                "-b:v",
+                "0",
+                "-crf",
+                &crf.to_string(),
                 "-f",
                 output_format.ffmpeg_format(),
                 output_path,
@@ -95,6 +108,10 @@ async fn transcode_files(
                 "-an",
                 "-c:v",
                 output_format.ffmpeg_video_codec(),
+                "-b:v",
+                "0",
+                "-crf",
+                &crf.to_string(),
                 "-f",
                 output_format.ffmpeg_format(),
                 output_path,

src/validate/magick.rs

@@ -10,17 +10,33 @@ use crate::{
 pub(super) async fn convert_image(
     input: ImageFormat,
     output: ImageFormat,
+    quality: Option<u8>,
     bytes: Bytes,
 ) -> Result<impl AsyncRead + Unpin, MagickError> {
-    convert(input.magick_format(), output.magick_format(), false, bytes).await
+    convert(
+        input.magick_format(),
+        output.magick_format(),
+        false,
+        quality,
+        bytes,
+    )
+    .await
 }
 
 pub(super) async fn convert_animation(
     input: AnimationFormat,
     output: AnimationFormat,
+    quality: Option<u8>,
     bytes: Bytes,
 ) -> Result<impl AsyncRead + Unpin, MagickError> {
-    convert(input.magick_format(), output.magick_format(), true, bytes).await
+    convert(
+        input.magick_format(),
+        output.magick_format(),
+        true,
+        quality,
+        bytes,
+    )
+    .await
 }
 
 pub(super) async fn convert_video(
@@ -28,13 +44,21 @@ pub(super) async fn convert_video(
     output: OutputVideoFormat,
     bytes: Bytes,
 ) -> Result<impl AsyncRead + Unpin, MagickError> {
-    convert(input.magick_format(), output.magick_format(), true, bytes).await
+    convert(
+        input.magick_format(),
+        output.magick_format(),
+        true,
+        None,
+        bytes,
+    )
+    .await
 }
 
 async fn convert(
     input: &'static str,
     output: &'static str,
     coalesce: bool,
+    quality: Option<u8>,
     bytes: Bytes,
 ) -> Result<impl AsyncRead + Unpin, MagickError> {
     let input_file = crate::tmp_file::tmp_file(None);
@@ -57,6 +81,34 @@ async fn convert(
     let output_arg = format!("{output}:-");
 
     let process = if coalesce {
+        if let Some(quality) = quality {
+            Process::run(
+                "magick",
+                &[
+                    "convert",
+                    "-strip",
+                    "-auto-orient",
+                    &input_arg,
+                    "-quality",
+                    &quality.to_string(),
+                    "-coalesce",
+                    &output_arg,
+                ],
+            )?
+        } else {
+            Process::run(
+                "magick",
+                &[
+                    "convert",
+                    "-strip",
+                    "-auto-orient",
+                    &input_arg,
+                    "-coalesce",
+                    &output_arg,
+                ],
+            )?
+        }
+    } else if let Some(quality) = quality {
         Process::run(
             "magick",
             &[
@@ -64,7 +116,8 @@ async fn convert(
                 "-strip",
                 "-auto-orient",
                 &input_arg,
-                "-coalesce",
+                "-quality",
+                &quality.to_string(),
                 &output_arg,
             ],
         )?