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jxl speedup?

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yggdrasil75
2025-11-06 10:52:52 -05:00
parent 7462c87d6d
commit ed37d8bb9b
1 changed files with 7 additions and 3 deletions
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8
util/jxlwriter.hpp
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@@ -103,6 +103,7 @@ public:
static bool saveJXL(const std::string& filename, const std::vector<uint8_t>& pixels,
int width, int height, float quality = 90.0f, int effort = 7) {
TIME_FUNCTION;
effort = 1; //forced 1 to test speed
if (pixels.size() != width * height * 3) {
return false;
}
@@ -130,7 +131,7 @@ public:
JxlEncoderFrameSettings* options = JxlEncoderFrameSettingsCreate(enc, nullptr);
// Set quality/distance (distance = 0 is lossless, higher = more lossy)
float distance = (100.0f - quality) / 10.0f; // Convert quality to distance
float distance = (100.0f - quality) / 5.0f;
if (quality >= 100.0f) {
JxlEncoderSetFrameLossless(options, JXL_TRUE);
} else {
@@ -147,6 +148,7 @@ public:
basic_info.bits_per_sample = 8;
basic_info.exponent_bits_per_sample = 0;
basic_info.uses_original_profile = JXL_FALSE;
//basic_info.uses_original_profile = JXL_TRUE;
if (JxlEncoderSetBasicInfo(enc, &basic_info) != JXL_ENC_SUCCESS) {
JxlThreadParallelRunnerDestroy(runner);
@@ -180,7 +182,9 @@ public:
// Compress to buffer
std::vector<uint8_t> compressed;
compressed.resize(4096); // Start with 4KB
// compressed.resize(4096); // Start with 4KB
size_t initial_size = width * height / 4;
compressed.resize(initial_size);
uint8_t* next_out = compressed.data();
size_t avail_out = compressed.size();
JxlEncoderStatus process_result = JXL_ENC_NEED_MORE_OUTPUT;