From 9a77ac6e2623eaf9685320b5f37242c1f76af896 Mon Sep 17 00:00:00 2001
From: Minecon724 <git@m724.eu>
Date: Mon, 11 Nov 2024 15:29:44 +0100
Subject: [PATCH] Copy metadata Without cover art yet

---
 include/audiofile.h |  2 ++
 src/audiofile.c     | 27 +++++++++++++++++++++++++++
 src/main.c          | 10 ++++++----
 3 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/include/audiofile.h b/include/audiofile.h
index 4bc8e7e..667065c 100644
--- a/include/audiofile.h
+++ b/include/audiofile.h
@@ -2,8 +2,10 @@
 #define AUDIOFILE_H
 
 #include <sndfile.h>
+#include <stdlib.h>
 
 SNDFILE *audiofile_read(const char *path, SF_INFO *sfinfo);
 SNDFILE *audiofile_open_for_write(const char *path, SF_INFO *og_info);
+int audiofile_copy_metadata(SNDFILE *source, SNDFILE *target);
 
 #endif
\ No newline at end of file
diff --git a/src/audiofile.c b/src/audiofile.c
index 97260dd..20727d8 100644
--- a/src/audiofile.c
+++ b/src/audiofile.c
@@ -38,4 +38,31 @@ SNDFILE *audiofile_open_for_write(const char *path, SF_INFO *og_info) {
     }
 
     return sndfile;
+}
+
+int audiofile_copy_metadata(SNDFILE *source, SNDFILE *target) {
+    int err;
+    SF_BROADCAST_INFO binfo;
+
+    if ((err = sf_command(source, SFC_GET_BROADCAST_INFO, &binfo, sizeof(binfo))) != 0) {
+        printf("Failed reading BROADCAST_INFO: %s\n", sf_error_number(err));
+        return 1;
+    }
+    if ((err = sf_command(target, SFC_SET_BROADCAST_INFO, &binfo, sizeof(binfo))) != 0) {
+        printf("Failed writing BROADCAST_INFO: %s\n", sf_error_number(err));
+        return 1;
+    }
+    
+
+    for (int i=SF_STR_FIRST; i<=SF_STR_LAST; i++) {
+        const char *data = sf_get_string(source, i);
+        if (data != NULL) {
+            if ((err = sf_set_string(target, i, data)) != 0) {
+                printf("Failed writing metadata %d (%s): %s\n", i, data, sf_error_number(err));
+                return 1;
+            }
+        }
+    }
+
+    return 0;
 }
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index a564045..07e9164 100644
--- a/src/main.c
+++ b/src/main.c
@@ -38,8 +38,8 @@ int main(int argc, char *argv[]) {
     // load audio file
 
     SF_INFO sfinfo = {0};
-    SNDFILE *sndfile;
-    if ((sndfile = audiofile_read(input_filename, &sfinfo)) == NULL) {
+    SNDFILE *in_sndfile;
+    if ((in_sndfile = audiofile_read(input_filename, &sfinfo)) == NULL) {
         return 1;
     }
 
@@ -47,6 +47,8 @@ int main(int argc, char *argv[]) {
     if ((out_sndfile = audiofile_open_for_write(output_filename, &sfinfo)) == NULL) {
         return 1;
     }
+
+    audiofile_copy_metadata(in_sndfile, out_sndfile);
     
     // load lilv plugin
 
@@ -90,7 +92,7 @@ int main(int argc, char *argv[]) {
     float input_buffer[BUFFER_SIZE * 2];
     float output_buffer[BUFFER_SIZE * 2];
     int frames_read;
-    while ((frames_read = sf_readf_float(sndfile, input_buffer, BUFFER_SIZE))) {
+    while ((frames_read = sf_readf_float(in_sndfile, input_buffer, BUFFER_SIZE))) {
         // a frame is 2 samples and a sample is a number basically and it go left right left right (or how many channels)
         for (sf_count_t i = 0; i < frames_read; i++) {
             input_left[i] = input_buffer[i * 2];
@@ -117,7 +119,7 @@ int main(int argc, char *argv[]) {
 
     lilv_world_free(world);
 
-    sf_close(sndfile);
+    sf_close(in_sndfile);
     sf_close(out_sndfile);
 }