From 13129f1af4340944291e0e291cb38d1c1ea3aad2 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Sat, 26 Oct 2024 11:23:49 +0200
Subject: [PATCH] lavc: deprecate the omx encoders

They have not been relevant for a long time, and support for this API is
also being dropped from other projects.
---
 Changelog                  | 1 +
 configure                  | 4 +++-
 libavcodec/omx.c           | 4 ++++
 libavcodec/version_major.h | 3 +++
 4 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/Changelog b/Changelog
index 50bffec41c..a744faeb29 100644
--- a/Changelog
+++ b/Changelog
@@ -5,6 +5,7 @@ version <next>:
 - yasm support dropped, users need to use nasm
 - VVC VAAPI decoder
 - RealVideo 6.0 decoder
+- OpenMAX encoders deprecated
 
 version 7.1:
 - Raw Captions with Time (RCWT) closed caption demuxer
diff --git a/configure b/configure
index 90bb535ea1..0e9ed6dc3c 100755
--- a/configure
+++ b/configure
@@ -7110,7 +7110,9 @@ enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoR
                                  test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame; } ||
                                die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
                              enable omx
-enabled omx               && require_headers OMX_Core.h
+enabled omx               && require_headers OMX_Core.h && \
+    warn "The OpenMAX encoders are deprecated and will be removed in future versions"
+
 enabled openssl           && { { check_pkg_config openssl "openssl >= 3.0.0" openssl/ssl.h OPENSSL_init_ssl &&
                                  { enabled gplv3 || ! enabled gpl || enabled nonfree || die "ERROR: OpenSSL >=3.0.0 requires --enable-version3"; }; } ||
                                { enabled gpl && ! enabled nonfree && die "ERROR: OpenSSL <3.0.0 is incompatible with the gpl"; } ||
diff --git a/libavcodec/omx.c b/libavcodec/omx.c
index 2c3865506f..2855aff8f2 100644
--- a/libavcodec/omx.c
+++ b/libavcodec/omx.c
@@ -648,6 +648,10 @@ static av_cold int omx_encode_init(AVCodecContext *avctx)
     OMX_BUFFERHEADERTYPE *buffer;
     OMX_ERRORTYPE err;
 
+    av_log(avctx, AV_LOG_WARNING,
+           "The %s encoder is deprecated and will be removed in future versions\n",
+           avctx->codec->name);
+
     /* cleanup relies on the mutexes/conditions being initialized first. */
     ret = ff_pthread_init(s, omx_codec_context_offsets);
     if (ret < 0)
diff --git a/libavcodec/version_major.h b/libavcodec/version_major.h
index 37f243f868..7ab2b67c2f 100644
--- a/libavcodec/version_major.h
+++ b/libavcodec/version_major.h
@@ -50,4 +50,7 @@
 #define FF_API_QUALITY_FACTOR      (LIBAVCODEC_VERSION_MAJOR < 62)
 #define FF_API_V408_CODECID        (LIBAVCODEC_VERSION_MAJOR < 62)
 
+// reminder to remove the OMX encoder on next major bump
+#define FF_CODEC_OMX               (LIBAVCODEC_VERSION_MAJOR < 62)
+
 #endif /* AVCODEC_VERSION_MAJOR_H */