[FFmpeg-devel] [PATCH 2/6] avcodec/codec_internal: add cap for ICC profile support

[Niklas Haas <ffmpeg@haasn.xyz>]

From: Niklas Haas <git@haasn.dev>

Codecs that can read/write ICC profiles deserve a special capability so
the common logic in encode.c/decode.c can decide whether or not there
needs to be any special handling for ICC profiles. The motivation here
is to be able to use it to decide whether or not an ICC profile needs to
be generated in the encode path, but it might as well get added to
decoders as well for purely informative reasons.

It's not entirely clear to me whether the "thp" and "smvjpeg" variants
of "mjpeg" should have this capability set or not, given that the code
technically supports it but I somehow doubt these files may contain
them. In either case, this cap is purely informative for decoders so it
doesn't matter too much either way.

It's also not entirely clear whether the "amv" encoder should signal ICC
profile support, but again erring on the side of caution, we probably
*shouldn't* be generating (and encoding!) ICC profiles for this type of
media file.

Signed-off-by: Niklas Haas <git@haasn.dev>
---
 libavcodec/codec_internal.h | 4 ++++
 libavcodec/libjxldec.c      | 3 ++-
 libavcodec/libjxlenc.c      | 3 ++-
 libavcodec/mjpegdec.c       | 3 ++-
 libavcodec/mjpegenc.c       | 3 ++-
 libavcodec/pngdec.c         | 5 +++--
 libavcodec/pngenc.c         | 4 ++--
 libavcodec/tiff.c           | 3 ++-
 libavcodec/webp.c           | 2 +-
 9 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/libavcodec/codec_internal.h b/libavcodec/codec_internal.h
index 5df286ce52..b4e3813353 100644
--- a/libavcodec/codec_internal.h
+++ b/libavcodec/codec_internal.h
@@ -73,6 +73,10 @@
  * internal logic derive them from AVCodecInternal.last_pkt_props.
  */
 #define FF_CODEC_CAP_SETS_FRAME_PROPS       (1 << 8)
+/**
+ * Codec supports embedded ICC profiles (AV_FRAME_DATA_ICC_PROFILE).
+ */
+#define FF_CODEC_CAP_ICC_PROFILES           (1 << 9)
 
 /**
  * FFCodec.codec_tags termination value
diff --git a/libavcodec/libjxldec.c b/libavcodec/libjxldec.c
index d516d3b0ac..7c78627037 100644
--- a/libavcodec/libjxldec.c
+++ b/libavcodec/libjxldec.c
@@ -455,6 +455,7 @@ const FFCodec ff_libjxl_decoder = {
     FF_CODEC_DECODE_CB(libjxl_decode_frame),
     .close            = libjxl_decode_close,
     .p.capabilities   = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_OTHER_THREADS,
-    .caps_internal    = FF_CODEC_CAP_AUTO_THREADS | FF_CODEC_CAP_INIT_CLEANUP,
+    .caps_internal    = FF_CODEC_CAP_AUTO_THREADS | FF_CODEC_CAP_INIT_CLEANUP |
+                        FF_CODEC_CAP_ICC_PROFILES,
     .p.wrapper_name   = "libjxl",
 };
diff --git a/libavcodec/libjxlenc.c b/libavcodec/libjxlenc.c
index 6a948cc3ae..3a533db8a1 100644
--- a/libavcodec/libjxlenc.c
+++ b/libavcodec/libjxlenc.c
@@ -463,7 +463,8 @@ const FFCodec ff_libjxl_encoder = {
     FF_CODEC_ENCODE_CB(libjxl_encode_frame),
     .close            = libjxl_encode_close,
     .p.capabilities   = AV_CODEC_CAP_OTHER_THREADS,
-    .caps_internal    = FF_CODEC_CAP_AUTO_THREADS | FF_CODEC_CAP_INIT_CLEANUP,
+    .caps_internal    = FF_CODEC_CAP_AUTO_THREADS | FF_CODEC_CAP_INIT_CLEANUP |
+                        FF_CODEC_CAP_ICC_PROFILES,
     .p.pix_fmts       = (const enum AVPixelFormat[]) {
         AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA,
         AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64,
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 32874a5a19..8e5878e9ee 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -3027,7 +3027,8 @@ const FFCodec ff_mjpeg_decoder = {
     .p.priv_class   = &mjpegdec_class,
     .p.profiles     = NULL_IF_CONFIG_SMALL(ff_mjpeg_profiles),
     .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
-                      FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_SETS_PKT_DTS,
+                      FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_SETS_PKT_DTS |
+                      FF_CODEC_CAP_ICC_PROFILES,
     .hw_configs     = (const AVCodecHWConfigInternal *const []) {
 #if CONFIG_MJPEG_NVDEC_HWACCEL
                         HWACCEL_NVDEC(mjpeg),
diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c
index 27217441a3..8787528b3e 100644
--- a/libavcodec/mjpegenc.c
+++ b/libavcodec/mjpegenc.c
@@ -652,7 +652,8 @@ const FFCodec ff_mjpeg_encoder = {
     FF_CODEC_ENCODE_CB(ff_mpv_encode_picture),
     .close          = mjpeg_encode_close,
     .p.capabilities = AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,
-    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
+                      FF_CODEC_CAP_ICC_PROFILES,
     .p.pix_fmts     = (const enum AVPixelFormat[]) {
         AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P,
         AV_PIX_FMT_YUV420P,  AV_PIX_FMT_YUV422P,  AV_PIX_FMT_YUV444P,
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 6b44af59f2..5cd8a176fd 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -1727,7 +1727,7 @@ const FFCodec ff_apng_decoder = {
     .update_thread_context = ONLY_IF_THREADS_ENABLED(update_thread_context),
     .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS /*| AV_CODEC_CAP_DRAW_HORIZ_BAND*/,
     .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
-                      FF_CODEC_CAP_ALLOCATE_PROGRESS,
+                      FF_CODEC_CAP_ALLOCATE_PROGRESS | FF_CODEC_CAP_ICC_PROFILES,
 };
 #endif
 
@@ -1744,6 +1744,7 @@ const FFCodec ff_png_decoder = {
     .update_thread_context = ONLY_IF_THREADS_ENABLED(update_thread_context),
     .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS /*| AV_CODEC_CAP_DRAW_HORIZ_BAND*/,
     .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_THREADSAFE |
-                      FF_CODEC_CAP_ALLOCATE_PROGRESS | FF_CODEC_CAP_INIT_CLEANUP,
+                      FF_CODEC_CAP_ALLOCATE_PROGRESS | FF_CODEC_CAP_INIT_CLEANUP |
+                      FF_CODEC_CAP_ICC_PROFILES,
 };
 #endif
diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
index d79b4e3895..b23ff84787 100644
--- a/libavcodec/pngenc.c
+++ b/libavcodec/pngenc.c
@@ -1210,7 +1210,7 @@ const FFCodec ff_png_encoder = {
         AV_PIX_FMT_MONOBLACK, AV_PIX_FMT_NONE
     },
     .p.priv_class   = &pngenc_class,
-    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_ICC_PROFILES,
 };
 
 const FFCodec ff_apng_encoder = {
@@ -1232,5 +1232,5 @@ const FFCodec ff_apng_encoder = {
         AV_PIX_FMT_NONE
     },
     .p.priv_class   = &pngenc_class,
-    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_ICC_PROFILES,
 };
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index e4a5d3c537..c369c12f71 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -2187,6 +2187,7 @@ const FFCodec ff_tiff_decoder = {
     .close          = tiff_end,
     FF_CODEC_DECODE_CB(decode_frame),
     .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
-    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
+                      FF_CODEC_CAP_ICC_PROFILES,
     .p.priv_class   = &tiff_decoder_class,
 };
diff --git a/libavcodec/webp.c b/libavcodec/webp.c
index 1b5e943a6e..2b1242615d 100644
--- a/libavcodec/webp.c
+++ b/libavcodec/webp.c
@@ -1565,5 +1565,5 @@ const FFCodec ff_webp_decoder = {
     FF_CODEC_DECODE_CB(webp_decode_frame),
     .close          = webp_decode_close,
     .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
-    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_ICC_PROFILES,
 };
-- 
2.36.1

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