SRC_PATH)/share/default.cfg $(DESTDIR)$(prefix)/share/gpac/
+ 
++ifeq ($(CONFIG_X11),yes)
++	$(INSTALL) -d "$(DESTDIR)$(prefix)/share/gpac/gui"
++	$(INSTALL) -d "$(DESTDIR)$(prefix)/share/gpac/gui/icons"
++	$(INSTALL) -d "$(DESTDIR)$(prefix)/share/gpac/gui/extensions"
+ ifneq ($(CONFIG_DARWIN),yes)
+ 	$(INSTALL) -d "$(DESTDIR)$(prefix)/share/icons/hicolor/128x128/apps"
+ 	$(INSTALL) -d "$(DESTDIR)$(prefix)/share/applications"
+@@ -155,28 +156,32 @@ endif
+ 	$(INSTALL) $(INSTFLAGS) -m 644 $(SRC_PATH)/share/res/gpac.png "$(DESTDIR)$(prefix)/share/icons/hicolor/128x128/apps/"
+ 	$(INSTALL) $(INSTFLAGS) -m 644 $(SRC_PATH)/share/gpac.desktop "$(DESTDIR)$(prefix)/share/applications/"
+ endif
+-
+ 	$(INSTALL) $(INSTFLAGS) -m 644 $(SRC_PATH)/share/gui/gui.bt "$(DESTDIR)$(prefix)/share/gpac/gui/"
+ 	$(INSTALL) $(INSTFLAGS) -m 644 $(SRC_PATH)/share/gui/gui.js "$(DESTDIR)$(prefix)/share/gpac/gui/"
+ 	$(INSTALL) $(INSTFLAGS) -m 644 $(SRC_PATH)/share/gui/gwlib.js "$(DESTDIR)$(prefix)/share/gpac/gui/"
++endif
+ 
+ 
+-ifeq ($(CONFIG_DARWIN),yes)
+-	cp $(SRC_PATH)/share/gui/icons/* "$(DESTDIR)$(prefix)/share/gpac/gui/icons/"
+-	cp -R $(SRC_PATH)/share/gui/extensions/* "$(DESTDIR)$(prefix)/share/gpac/gui/extensions/"
++ifneq (,$(filter yes,$(CONFIG_DARWIN) $(CONFIG_FREEBSD)))
+ 	cp $(SRC_PATH)/share/shaders/* "$(DESTDIR)$(prefix)/share/gpac/shaders/"
+ 	cp -R $(SRC_PATH)/share/scripts/* "$(DESTDIR)$(prefix)/share/gpac/scripts/"
+ 	cp -R $(SRC_PATH)/share/python/* "$(DESTDIR)$(prefix)/share/gpac/python/"
+ 	cp $(SRC_PATH)/share/res/* "$(DESTDIR)$(prefix)/share/gpac/res/"
+ 	cp -R $(SRC_PATH)/share/vis/* "$(DESTDIR)$(prefix)/share/gpac/vis/"
++ifeq ($(CONFIG_X11),yes)
++	cp $(SRC_PATH)/share/gui/icons/* "$(DESTDIR)$(prefix)/share/gpac/gui/icons/"
++	cp -R $(SRC_PATH)/share/gui/extensions/* "$(DESTDIR)$(prefix)/share/gpac/gui/extensions/"
++endif
+ else
+-	cp --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/gui/icons/* $(DESTDIR)$(prefix)/share/gpac/gui/icons/
+-	cp -R --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/gui/extensions/* $(DESTDIR)$(prefix)/share/gpac/gui/extensions/
+ 	cp --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/shaders/* $(DESTDIR)$(prefix)/share/gpac/shaders/
+ 	cp -R --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/scripts/* $(DESTDIR)$(prefix)/share/gpac/scripts/
+ 	cp -R --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/python/* $(DESTDIR)$(prefix)/share/gpac/python/
+ 	cp --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/res/* $(DESTDIR)$(prefix)/share/gpac/res/
+ 	cp -R --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/vis/* $(DESTDIR)$(prefix)/share/gpac/vis/
++ifeq ($(CONFIG_X11),yes)
++	cp --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/gui/icons/* $(DESTDIR)$(prefix)/share/gpac/gui/icons/
++	cp -R --no-preserve=mode,ownership,timestamp $(SRC_PATH)/share/gui/extensions/* $(DESTDIR)$(prefix)/share/gpac/gui/extensions/
++endif
+ endif
+ 
+ lninstall:
diff --git a/multimedia/gpac/files/patch-configure b/multimedia/gpac/files/patch-configure
new file mode 100644
index 000000000000..ed25fb3395a5
--- /dev/null
+++ b/multimedia/gpac/files/patch-configure
@@ -0,0 +1,11 @@
+--- configure.orig	2026-01-10 11:12:40 UTC
++++ configure
+@@ -942,7 +942,7 @@ EOF
+ 
+     FreeBSD)
+         make="gmake"
+-        LDFLAGS="$LDFLAGS -export-dynamic"
++	LDFLAGS="$LDFLAGS -rdynamic"
+         PTHREAD_CFLAGS=-pthread
+         PTHREAD_LDFLAGS=-pthread
+         freebsd="yes"
diff --git a/multimedia/gpac/files/patch-src_filters_ff__avf.c b/multimedia/gpac/files/patch-src_filters_ff__avf.c
new file mode 100644
index 000000000000..2441ff4a4d3c
--- /dev/null
+++ b/multimedia/gpac/files/patch-src_filters_ff__avf.c
@@ -0,0 +1,17 @@
+--- src/filters/ff_avf.c.orig	2024-04-17 17:18:21 UTC
++++ src/filters/ff_avf.c
+@@ -722,9 +722,13 @@ static GF_Err ffavf_process(GF_Filter *filter)
+ 					memcpy(buffer + j*opid->stride, frame->data[3] + j*frame->linesize[3], opid->width*opid->bpp);
+ 				}
+ 			}
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 			if (frame->interlaced_frame)
+ 				gf_filter_pck_set_interlaced(pck, frame->top_field_first ? 1 : 2);
+-
++#else
++			if (frame->flags & AV_FRAME_FLAG_INTERLACED)
++				gf_filter_pck_set_interlaced(pck, frame->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST ? 1 : 2);
++#endif
+ 			gf_filter_pck_set_sap(pck, GF_FILTER_SAP_1);
+ 			gf_filter_pck_set_cts(pck, frame->pts * opid->tb_num);
+ 			gf_filter_pck_send(pck);
diff --git a/multimedia/gpac/files/patch-src_filters_ff__dec.c b/multimedia/gpac/files/patch-src_filters_ff__dec.c
new file mode 100644
index 000000000000..a4cea3d2ef1d
--- /dev/null
+++ b/multimedia/gpac/files/patch-src_filters_ff__dec.c
@@ -0,0 +1,16 @@
+--- src/filters/ff_dec.c.orig	2024-04-17 17:18:21 UTC
++++ src/filters/ff_dec.c
+@@ -535,8 +535,13 @@ restart:
+ 
+ 	gf_filter_pck_set_seek_flag(dst_pck, GF_FALSE);
+ 
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 	if (frame->interlaced_frame)
+ 		gf_filter_pck_set_interlaced(dst_pck, frame->top_field_first ? 2 : 1);
++#else
++	if (frame->flags & AV_FRAME_FLAG_INTERLACED)
++		gf_filter_pck_set_interlaced(dst_pck, frame->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST ? 2 : 1);
++#endif
+ 
+ 	gf_filter_pck_send(dst_pck);
+ 
diff --git a/multimedia/gpac/files/patch-src_filters_ff__dmx.c b/multimedia/gpac/files/patch-src_filters_ff__dmx.c
new file mode 100644
index 000000000000..c3c011b6b945
--- /dev/null
+++ b/multimedia/gpac/files/patch-src_filters_ff__dmx.c
@@ -0,0 +1,18 @@
+--- src/filters/ff_dmx.c.orig	2024-04-17 17:18:21 UTC
++++ src/filters/ff_dmx.c
+@@ -1255,9 +1255,15 @@ GF_Err ffdmx_init_common(GF_Filter *filter, GF_FFDemux
+ 		}
+ 		gf_filter_pid_set_property(pid, GF_PROP_PID_MUX_INDEX, &PROP_UINT(i+1));
+ 
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 		for (j=0; j<(u32) stream->nb_side_data; j++) {
+ 			ffdmx_parse_side_data(&stream->side_data[j], pid);
+ 		}
++#else
++		for (j=0; j<(u32) stream->codecpar->nb_coded_side_data; j++) {
++			ffdmx_parse_side_data(&stream->codecpar->coded_side_data[j], pid);
++		}
++#endif
+ 
+ 		if (ctx->demuxer->nb_chapters) {
+ 			GF_PropertyValue p;
diff --git a/multimedia/gpac/files/patch-src_filters_ff__enc.c b/multimedia/gpac/files/patch-src_filters_ff__enc.c
new file mode 100644
index 000000000000..d2ad49579a29
--- /dev/null
+++ b/multimedia/gpac/files/patch-src_filters_ff__enc.c
@@ -0,0 +1,37 @@
+--- src/filters/ff_enc.c.orig	2024-04-17 17:18:21 UTC
++++ src/filters/ff_enc.c
+@@ -588,12 +588,25 @@ static GF_Err ffenc_process_video(GF_Filter *filter, s
+ 		}
+ 		if (pck) {
+ 			ilaced = gf_filter_pck_get_interlaced(pck);
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 			if (!ilaced) {
+ 				ctx->frame->interlaced_frame = 0;
+ 			} else {
+ 				ctx->frame->interlaced_frame = 1;
+ 				ctx->frame->top_field_first = (ilaced==2) ? 1 : 0;
+ 			}
++#else
++			if (!ilaced) {
++				ctx->frame->flags &= ~AV_FRAME_FLAG_INTERLACED;
++			} else {
++				ctx->frame->flags |= AV_FRAME_FLAG_INTERLACED;
++				if (ilaced==2) {
++					ctx->frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST;
++				} else {
++					ctx->frame->flags &= ~AV_FRAME_FLAG_TOP_FIELD_FIRST;
++				}
++			}
++#endif
+ 			ctx->frame->pts = ffenc_get_cts(ctx, pck);
+ 			ctx->frame->_avf_dur = gf_filter_pck_get_duration(pck);
+ 		}
+@@ -706,7 +719,7 @@ static GF_Err ffenc_process_video(GF_Filter *filter, s
+ 				ctx->reconfig_pending = GF_FALSE;
+ 				ctx->force_reconfig = GF_FALSE;
+ 				GF_LOG(GF_LOG_DEBUG, GF_LOG_CODEC, ("[FFEnc] codec flush done, triggering reconfiguration\n"));
+-				avcodec_close(ctx->encoder);
++				avcodec_free_context(&ctx->encoder);
+ 				ctx->encoder = NULL;
+ 				ctx->setup_failed = 0;
+ 				e = ffenc_configure_pid_ex(filter, ctx->in_pid, GF_FALSE, GF_TRUE);
diff --git a/multimedia/gpac/files/patch-src_filters_ff__mx.c b/multimedia/gpac/files/patch-src_filters_ff__mx.c
new file mode 100644
index 000000000000..a5ddd4da0de5
--- /dev/null
+++ b/multimedia/gpac/files/patch-src_filters_ff__mx.c
@@ -0,0 +1,77 @@
+--- src/filters/ff_mx.c.orig	2024-04-17 17:18:21 UTC
++++ src/filters/ff_mx.c
+@@ -1330,7 +1330,14 @@ static GF_Err ffmx_configure_pid(GF_Filter *filter, GF
+ 		u8 *data = av_malloc(sizeof(u32) * 9);
+ 		if (data) {
+ 			memcpy(data, p->value.uint_list.vals, sizeof(u32)*9);
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 			av_stream_add_side_data(st->stream, AV_PKT_DATA_DISPLAYMATRIX, data, 32*9);
++#else
++			av_packet_side_data_add(&st->stream->codecpar->coded_side_data,
++									&st->stream->codecpar->nb_coded_side_data,
++									AV_PKT_DATA_DISPLAYMATRIX,
++									data, 32 * 9, 0);
++#endif
+ 		}
+ 	}
+ #if (LIBAVCODEC_VERSION_MAJOR>58)
+@@ -1340,7 +1347,14 @@ static GF_Err ffmx_configure_pid(GF_Filter *filter, GF
+ 		u8 *data = av_malloc(p->value.data.size);
+ 		if (data) {
+ 			memcpy(data, p->value.data.ptr, p->value.data.size);
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 			av_stream_add_side_data(st->stream, AV_PKT_DATA_ICC_PROFILE, data, p->value.data.size);
++#else
++			av_packet_side_data_add(&st->stream->codecpar->coded_side_data,
++									&st->stream->codecpar->nb_coded_side_data,
++									AV_PKT_DATA_ICC_PROFILE,
++									data, p->value.data.size, 0);
++#endif
+ 		}
+ 	}
+ 	//clli
+@@ -1351,7 +1365,14 @@ static GF_Err ffmx_configure_pid(GF_Filter *filter, GF
+ 		if (data) {
+ 			data->MaxCLL = gf_bs_read_u16(bs);
+ 			data->MaxFALL = gf_bs_read_u16(bs);
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 			av_stream_add_side_data(st->stream, AV_PKT_DATA_CONTENT_LIGHT_LEVEL, (u8*) data, sizeof(AVContentLightMetadata));
++#else
++			av_packet_side_data_add(&st->stream->codecpar->coded_side_data,
++									&st->stream->codecpar->nb_coded_side_data,
++									AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
++									(u8*) data, sizeof(AVContentLightMetadata), 0);
++#endif
+ 		}
+ 		gf_bs_del(bs);
+ 	}
+@@ -1385,7 +1406,14 @@ static GF_Err ffmx_configure_pid(GF_Filter *filter, GF
+ 			data->max_luminance.den = luma_den;
+ 			data->min_luminance.num = gf_bs_read_u32(bs);
+ 			data->min_luminance.den = luma_den;
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 			av_stream_add_side_data(st->stream, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, (u8*) data, sizeof(AVMasteringDisplayMetadata));
++#else
++			av_packet_side_data_add(&st->stream->codecpar->coded_side_data,
++				&st->stream->codecpar->nb_coded_side_data,
++				AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
++				(u8*) data, sizeof(AVMasteringDisplayMetadata), 0);
++#endif
+     	}
+     	gf_bs_del(bs);
+ 	}
+@@ -1403,7 +1431,14 @@ static GF_Err ffmx_configure_pid(GF_Filter *filter, GF
+ 			data->el_present_flag = gf_bs_read_int(bs, 1);
+ 			data->bl_present_flag = gf_bs_read_int(bs, 1);
+ 			data->dv_bl_signal_compatibility_id = gf_bs_read_int(bs, 4);
++#if (LIBAVFORMAT_VERSION_MAJOR < 62)
+ 			av_stream_add_side_data(st->stream, AV_PKT_DATA_DOVI_CONF, (u8*) data, sizeof(Ref_FFAVDoviRecord));
++#else
++			av_packet_side_data_add(&st->stream->codecpar->coded_side_data,
++									&st->stream->codecpar->nb_coded_side_data,
++									AV_PKT_DATA_DOVI_CONF,
++									(u8*) data, sizeof(Ref_FFAVDoviRecord), 0);
++#endif
+ 		}
+ 		gf_bs_del(bs);
+ 	}
diff --git a/multimedia/gpac/files/patch-src_utils_os__config__init.c b/multimedia/gpac/files/patch-src_utils_os__config__init.c
new file mode 100644
index 000000000000..08e7e4df83c5
--- /dev/null
+++ b/multimedia/gpac/files/patch-src_utils_os__config__init.c
@@ -0,0 +1,38 @@
+--- src/utils/os_config_init.c.orig	2026-01-10 11:13:13 UTC
++++ src/utils/os_config_init.c
+@@ -335,7 +335,7 @@ static Bool get_default_install_path(char *file_path, 
+ #else
+ 
+ //dlinfo
+-#if defined(__DARWIN__) || defined(__APPLE__)
++#if defined(__DARWIN__) || defined(__APPLE__) || defined(__FreeBSD__)
+ #include <dlfcn.h>
+ 
+ typedef Dl_info _Dl_info;
+@@ -357,7 +357,7 @@ static Bool get_default_install_path(char *file_path, 
+ {
+ 	char app_path[GF_MAX_PATH];
+ 	char *sep;
+-#if (defined(__DARWIN__) || defined(__APPLE__) || defined(GPAC_CONFIG_LINUX))
++#if (defined(__DARWIN__) || defined(__APPLE__) || defined(GPAC_CONFIG_LINUX) || defined(__FreeBSD__))
+ 	u32 size;
+ #endif
+ 
+@@ -419,7 +419,7 @@ static Bool get_default_install_path(char *file_path, 
+ 			return 1;
+ 		}
+ 
+-#elif defined(GPAC_CONFIG_LINUX)
++#elif defined(GPAC_CONFIG_LINUX) || defined(__FreeBSD__)
+ 		size = readlink("/proc/self/exe", file_path, GF_MAX_PATH-1);
+ 		if (size>0) {
+ 			file_path[size] = 0;
+@@ -456,7 +456,7 @@ static Bool get_default_install_path(char *file_path, 
+ 	}
+ 
+ 	if (path_type==GF_PATH_LIB) {
+-#if defined(__DARWIN__) || defined(__APPLE__) || defined(GPAC_CONFIG_LINUX)
++#if defined(__DARWIN__) || defined(__APPLE__) || defined(GPAC_CONFIG_LINUX) || defined(__FreeBSD__)
+ 		_Dl_info dl_info;
+ 		dl_info.dli_fname = NULL;
+ 		if (dladdr((void *)get_default_install_path, &dl_info)
diff --git a/multimedia/gpac/files/patch-src_utils_os__divers.c b/multimedia/gpac/files/patch-src_utils_os__divers.c
new file mode 100644
index 000000000000..852b8c643aa7
--- /dev/null
+++ b/multimedia/gpac/files/patch-src_utils_os__divers.c
@@ -0,0 +1,12 @@
+--- src/utils/os_divers.c.orig	2026-01-10 11:14:36 UTC
++++ src/utils/os_divers.c
+@@ -2301,6 +2301,9 @@ Bool gf_sys_get_rti_os(u32 refresh_time_ms, GF_SystemR
*** 373 LINES SKIPPED ***