[FFmpeg-devel] [PATCH 1/7] avutil/avutil: move some definitions to a new header

* [FFmpeg-devel] [PATCH 1/7] avutil/avutil: move some definitions to a new header
@ 2025-01-22  2:53 James Almer
  2025-01-22  2:53 ` [FFmpeg-devel] [PATCH 2/7] avcodec/packet: move AVSideDataParamChangeFlags to libavutil/defs.h James Almer
                   ` (6 more replies)
  0 siblings, 7 replies; 21+ messages in thread
From: James Almer @ 2025-01-22  2:53 UTC (permalink / raw)
  To: ffmpeg-devel

They don't belong anywhere in particular, so move them to a new generic header
called defs.h, following the same idea as the one from lavc.

Signed-off-by: James Almer <jamrial@gmail.com>
---
 libavutil/avutil.h |  94 +++-------------------------
 libavutil/defs.h   | 149 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 159 insertions(+), 84 deletions(-)
 create mode 100644 libavutil/defs.h

diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index ee709fbb2a..1cf562c73f 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -191,100 +191,36 @@ const char *avutil_license(void);
  * @}
  */
 
+#include "common.h"
+#include "defs.h"
+#include "rational.h"
+#include "version.h"
+#include "macros.h"
+#include "mathematics.h"
+#include "log.h"
+#include "pixfmt.h"
+
 /**
  * @addtogroup lavu_media Media Type
  * @brief Media Type
+ * @{
  */
 
-enum AVMediaType {
-    AVMEDIA_TYPE_UNKNOWN = -1,  ///< Usually treated as AVMEDIA_TYPE_DATA
-    AVMEDIA_TYPE_VIDEO,
-    AVMEDIA_TYPE_AUDIO,
-    AVMEDIA_TYPE_DATA,          ///< Opaque data information usually continuous
-    AVMEDIA_TYPE_SUBTITLE,
-    AVMEDIA_TYPE_ATTACHMENT,    ///< Opaque data information usually sparse
-    AVMEDIA_TYPE_NB
-};
-
 /**
  * Return a string describing the media_type enum, NULL if media_type
  * is unknown.
  */
 const char *av_get_media_type_string(enum AVMediaType media_type);
 
-/**
- * @defgroup lavu_const Constants
- * @{
- *
- * @defgroup lavu_enc Encoding specific
- *
- * @note those definition should move to avcodec
- * @{
- */
-
-#define FF_LAMBDA_SHIFT 7
-#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
-#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
-#define FF_LAMBDA_MAX (256*128-1)
-
-#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
-
 /**
  * @}
- * @defgroup lavu_time Timestamp specific
- *
- * FFmpeg internal timebase and timestamp definitions
- *
- * @{
- */
-
-/**
- * @brief Undefined timestamp value
- *
- * Usually reported by demuxer that work on containers that do not provide
- * either pts or dts.
  */
 
-#define AV_NOPTS_VALUE          ((int64_t)UINT64_C(0x8000000000000000))
-
 /**
- * Internal time base represented as integer
- */
-
-#define AV_TIME_BASE            1000000
-
-/**
- * Internal time base represented as fractional value
- */
-
-#ifdef __cplusplus
-/* ISO C++ forbids compound-literals. */
-#define AV_TIME_BASE_Q          av_make_q(1, AV_TIME_BASE)
-#else
-#define AV_TIME_BASE_Q          (AVRational){1, AV_TIME_BASE}
-#endif
-
-/**
- * @}
- * @}
  * @defgroup lavu_picture Image related
- *
- * AVPicture types, pixel formats and basic image planes manipulation.
- *
  * @{
  */
 
-enum AVPictureType {
-    AV_PICTURE_TYPE_NONE = 0, ///< Undefined
-    AV_PICTURE_TYPE_I,     ///< Intra
-    AV_PICTURE_TYPE_P,     ///< Predicted
-    AV_PICTURE_TYPE_B,     ///< Bi-dir predicted
-    AV_PICTURE_TYPE_S,     ///< S(GMC)-VOP MPEG-4
-    AV_PICTURE_TYPE_SI,    ///< Switching Intra
-    AV_PICTURE_TYPE_SP,    ///< Switching Predicted
-    AV_PICTURE_TYPE_BI,    ///< BI type
-};
-
 /**
  * Return a single letter to describe the given picture type
  * pict_type.
@@ -298,14 +234,6 @@ char av_get_picture_type_char(enum AVPictureType pict_type);
  * @}
  */
 
-#include "common.h"
-#include "rational.h"
-#include "version.h"
-#include "macros.h"
-#include "mathematics.h"
-#include "log.h"
-#include "pixfmt.h"
-
 /**
  * Return x default pointer in case p is NULL.
  */
@@ -343,8 +271,6 @@ unsigned av_int_list_length_for_size(unsigned elsize,
  */
 AVRational av_get_time_base_q(void);
 
-#define AV_FOURCC_MAX_STRING_SIZE 32
-
 #define av_fourcc2str(fourcc) av_fourcc_make_string((char[AV_FOURCC_MAX_STRING_SIZE]){0}, fourcc)
 
 /**
diff --git a/libavutil/defs.h b/libavutil/defs.h
new file mode 100644
index 0000000000..9e9bb8bcc5
--- /dev/null
+++ b/libavutil/defs.h
@@ -0,0 +1,149 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_DEFS_H
+#define AVUTIL_DEFS_H
+
+/**
+ * @file
+ * @ingroup lavu
+ * Misc types and constants that do not belong anywhere else.
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+
+/**
+ * @addtogroup lavu_misc Other
+ * @{
+ *
+ * @defgroup preproc_misc Preprocessor String Macros
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup version_utils Library Version Macros
+ *
+ * @{
+ *
+ * @}
+ */
+
+/**
+ * @addtogroup lavu_media Media Type
+ * @{
+ */
+enum AVMediaType {
+    AVMEDIA_TYPE_UNKNOWN = -1,  ///< Usually treated as AVMEDIA_TYPE_DATA
+    AVMEDIA_TYPE_VIDEO,
+    AVMEDIA_TYPE_AUDIO,
+    AVMEDIA_TYPE_DATA,          ///< Opaque data information usually continuous
+    AVMEDIA_TYPE_SUBTITLE,
+    AVMEDIA_TYPE_ATTACHMENT,    ///< Opaque data information usually sparse
+    AVMEDIA_TYPE_NB
+};
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavu_const Constants
+ * @{
+ *
+ * @defgroup lavu_enc Encoding specific
+ *
+ * @note those definition should move to avcodec
+ * @{
+ */
+
+#define FF_LAMBDA_SHIFT 7
+#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
+#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
+#define FF_LAMBDA_MAX (256*128-1)
+
+#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
+
+#define AV_FOURCC_MAX_STRING_SIZE 32
+
+/**
+ * @}
+ * @defgroup lavu_time Timestamp specific
+ *
+ * FFmpeg internal timebase and timestamp definitions
+ *
+ * @{
+ */
+
+/**
+ * @brief Undefined timestamp value
+ *
+ * Usually reported by demuxer that work on containers that do not provide
+ * either pts or dts.
+ */
+
+#define AV_NOPTS_VALUE          ((int64_t)UINT64_C(0x8000000000000000))
+
+/**
+ * Internal time base represented as integer
+ */
+
+#define AV_TIME_BASE            1000000
+
+/**
+ * Internal time base represented as fractional value
+ */
+
+#ifdef __cplusplus
+/* ISO C++ forbids compound-literals. */
+#define AV_TIME_BASE_Q          av_make_q(1, AV_TIME_BASE)
+#else
+#define AV_TIME_BASE_Q          (AVRational){1, AV_TIME_BASE}
+#endif
+
+/**
+ * @}
+ * @}
+ */
+
+/**
+ * @addtogroup lavu_picture Image related
+ *
+ * AVPicture types, pixel formats and basic image planes manipulation.
+ *
+ * @{
+ */
+
+enum AVPictureType {
+    AV_PICTURE_TYPE_NONE = 0, ///< Undefined
+    AV_PICTURE_TYPE_I,     ///< Intra
+    AV_PICTURE_TYPE_P,     ///< Predicted
+    AV_PICTURE_TYPE_B,     ///< Bi-dir predicted
+    AV_PICTURE_TYPE_S,     ///< S(GMC)-VOP MPEG-4
+    AV_PICTURE_TYPE_SI,    ///< Switching Intra
+    AV_PICTURE_TYPE_SP,    ///< Switching Predicted
+    AV_PICTURE_TYPE_BI,    ///< BI type
+};
+
+/**
+ * @}
+ * @}
+ */
+
+#endif // AVUTIL_DEFS_H
-- 
2.48.1

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