[FFmpeg-devel] [PATCH v3 4/6] avcodec: add common fflcms2 boilerplate

[Niklas Haas]

From: Niklas Haas <git at haasn.dev>

Handling this in general code makes more sense than handling it in
individual codec files, because it would be a lot of unnecessary code
duplication for the plenty of formats that support exporting ICC
profiles (jpg, png, tiff, webp, jxl, ...).

encode.c and decode.c will be in charge of initializing this state as
needed, so we merely need to make sure to uninit it afterwards from the
common destructor path.

Signed-off-by: Niklas Haas <git at haasn.dev>
---
 configure             | 2 +-
 libavcodec/Makefile   | 1 +
 libavcodec/avcodec.c  | 4 ++++
 libavcodec/decode.c   | 4 ++++
 libavcodec/internal.h | 8 ++++++++
 5 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 91444cdc53..f7dbe29bfb 100755
--- a/configure
+++ b/configure
@@ -3813,7 +3813,7 @@ swresample_suggest="libm libsoxr stdatomic"
 swscale_deps="avutil"
 swscale_suggest="libm stdatomic"
 
-avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
+avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs lcms2_extralibs"
 avfilter_extralibs="pthreads_extralibs"
 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
 
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index ac9fb575c5..b9a612558d 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -114,6 +114,7 @@ OBJS-$(CONFIG_INTRAX8)                 += intrax8.o intrax8dsp.o msmpeg4data.o
 OBJS-$(CONFIG_IVIDSP)                  += ivi_dsp.o
 OBJS-$(CONFIG_JNI)                     += ffjni.o jni.o
 OBJS-$(CONFIG_JPEGTABLES)              += jpegtables.o
+OBJS-$(CONFIG_LCMS2)                   += fflcms2.o
 OBJS-$(CONFIG_LLAUDDSP)                += lossless_audiodsp.o
 OBJS-$(CONFIG_LLVIDDSP)                += lossless_videodsp.o
 OBJS-$(CONFIG_LLVIDENCDSP)             += lossless_videoencdsp.o
diff --git a/libavcodec/avcodec.c b/libavcodec/avcodec.c
index fb11440e5d..7098a28b76 100644
--- a/libavcodec/avcodec.c
+++ b/libavcodec/avcodec.c
@@ -481,6 +481,10 @@ av_cold int avcodec_close(AVCodecContext *avctx)
 
         av_channel_layout_uninit(&avci->initial_ch_layout);
 
+#if CONFIG_LCMS2
+        ff_icc_context_uninit(&avci->icc);
+#endif
+
         av_freep(&avctx->internal);
     }
 
diff --git a/libavcodec/decode.c b/libavcodec/decode.c
index 14ce4c2e2f..cc4fe3b1d5 100644
--- a/libavcodec/decode.c
+++ b/libavcodec/decode.c
@@ -49,6 +49,10 @@
 #include "internal.h"
 #include "thread.h"
 
+#if CONFIG_LCMS2
+# include "fflcms2.h"
+#endif
+
 static int apply_param_change(AVCodecContext *avctx, const AVPacket *avpkt)
 {
     int ret;
diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index 17e1de8127..e284816705 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -33,6 +33,10 @@
 #include "avcodec.h"
 #include "config.h"
 
+#if CONFIG_LCMS2
+# include "fflcms2.h"
+#endif
+
 #define FF_SANE_NB_CHANNELS 512U
 
 #if HAVE_SIMD_ALIGN_64
@@ -148,6 +152,10 @@ typedef struct AVCodecInternal {
     uint64_t initial_channel_layout;
 #endif
     AVChannelLayout initial_ch_layout;
+
+#if CONFIG_LCMS2
+    FFIccContext icc; /* used to read and write embedded ICC profiles */
+#endif
 } AVCodecInternal;
 
 /**
-- 
2.37.1