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added compression rules

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davotoula
2025-09-22 18:20:30 +02:00
parent 96b8c77bcd
commit 931c6681c6
1 changed files with 44 additions and 0 deletions
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44
amethyst/src/main/java/com/vitorpamplona/amethyst/service/uploads/MediaCompressor.kt
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@@ -49,6 +49,50 @@ class MediaCompressorResult(
val size: Long?, val size: Long?,
) )
data class CompressionRule(
val width: Int,
val height: Int,
val bitrateMbps: Float,
val description: String,
)
private val compressionRules =
mapOf(
CompressorQuality.LOW to
mapOf(
"4K" to CompressionRule(1280, 720, 2f, "4K→720p, 2Mbps"),
"1440p" to CompressionRule(1280, 720, 2f, "1440p→720p, 2Mbps"),
"1080p" to CompressionRule(854, 480, 1f, "1080p→480p, 1Mbps"),
"720p" to CompressionRule(640, 360, 1f, "720p→360p, 1Mbps"),
"480p" to CompressionRule(426, 240, 1f, "480p→240p, 1Mbps"),
"360p" to CompressionRule(426, 240, 0.3f, "360p→240p, 0.3Mbps"),
"240p" to CompressionRule(320, 180, 0.2f, "240p→180p, 0.2Mbps"),
"default" to CompressionRule(854, 480, 1f, "Low quality fallback, 1Mbps"),
),
CompressorQuality.MEDIUM to
mapOf(
"4K" to CompressionRule(1920, 1080, 6f, "4K→1080p, 6Mbps"),
"1440p" to CompressionRule(1920, 1080, 6f, "1440p→1080p, 6Mbps"),
"1080p" to CompressionRule(1280, 720, 3f, "1080p→720p, 3Mbps"),
"720p" to CompressionRule(854, 480, 2f, "720p→480p, 2Mbps"),
"480p" to CompressionRule(640, 360, 1f, "480p→360p, 1Mbps"),
"360p" to CompressionRule(426, 240, 0.5f, "360p→240p, 0.5Mbps"),
"240p" to CompressionRule(320, 180, 0.3f, "240p→180p, 0.3Mbps"),
"default" to CompressionRule(1280, 720, 2f, "Medium quality fallback, 2Mbps"),
),
CompressorQuality.HIGH to
mapOf(
"4K" to CompressionRule(3840, 2160, 16f, "4K→4K, 16Mbps"),
"1440p" to CompressionRule(1920, 1080, 8f, "1440p→1080p, 8Mbps"),
"1080p" to CompressionRule(1920, 1080, 6f, "1080p→1080p, 6Mbps"),
"720p" to CompressionRule(1280, 720, 3f, "720p→720p, 3Mbps"),
"480p" to CompressionRule(854, 480, 2f, "480p→480p, 2Mbps"),
"360p" to CompressionRule(640, 360, 1f, "360p→360p, 1Mbps"),
"240p" to CompressionRule(426, 240, 0.5f, "240p→240p, 0.5Mbps"),
"default" to CompressionRule(1920, 1080, 3f, "High quality fallback, 3Mbps"),
),
)
/** The plan /** The plan
* 1. Check input resolution and input fps * 1. Check input resolution and input fps
* 2. Create configuration matrix: for each quality level, set bitrate based on input resolution * 2. Create configuration matrix: for each quality level, set bitrate based on input resolution