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-rw-r--r--Lua/src/lib/ffmpeg/avutil.pas276
1 files changed, 188 insertions, 88 deletions
diff --git a/Lua/src/lib/ffmpeg/avutil.pas b/Lua/src/lib/ffmpeg/avutil.pas
index b4fae422..55bab601 100644
--- a/Lua/src/lib/ffmpeg/avutil.pas
+++ b/Lua/src/lib/ffmpeg/avutil.pas
@@ -29,14 +29,21 @@
*
* libavutil/avutil.h:
* Min. version: 49.0.1, revision 6577, Sat Oct 7 15:30:46 2006 UTC
- * Max. version: 49.11.0, revision 15415, Thu Sep 25 19:23:13 2008 UTC
+ * Max. version: 49.14.0, revision 16912, Sun Feb 1 02:00:19 2009 UTC
*
* libavutil/mem.h:
- * revision 15120, Sun Aug 31 07:39:47 2008 UTC
+ * revision 16590, Tue Jan 13 23:44:16 2009 UTC
*
* libavutil/log.h:
- * revision 15120, Sun Aug 31 07:39:47 2008 UTC
+ * revision 16571, Tue Jan 13 00:14:43 2009 UTC
*)
+{
+ Update changes auf avutil.h, mem.h and log.h
+ Max. version 50.05.1, Sun, Dec 6 24:00:00 2009 UTC
+ include/keep pixfmt.h (change in revision 50.01.0)
+ Maybe, the pixelformats are not needed, but it has not been checked.
+ log.h is only partial.
+}
unit avutil;
@@ -62,9 +69,9 @@ uses
const
(* Max. supported version by this header *)
- LIBAVUTIL_MAX_VERSION_MAJOR = 49;
- LIBAVUTIL_MAX_VERSION_MINOR = 11;
- LIBAVUTIL_MAX_VERSION_RELEASE = 0;
+ LIBAVUTIL_MAX_VERSION_MAJOR = 50;
+ LIBAVUTIL_MAX_VERSION_MINOR = 5;
+ LIBAVUTIL_MAX_VERSION_RELEASE = 1;
LIBAVUTIL_MAX_VERSION = (LIBAVUTIL_MAX_VERSION_MAJOR * VERSION_MAJOR) +
(LIBAVUTIL_MAX_VERSION_MINOR * VERSION_MINOR) +
(LIBAVUTIL_MAX_VERSION_RELEASE * VERSION_RELEASE);
@@ -94,88 +101,179 @@ function avutil_version(): cuint;
cdecl; external av__format;
{$IFEND}
+{$IF LIBAVUTIL_VERSION >= 50004000} // >= 50.4.0
+(**
+ * Returns the libavutil build-time configuration.
+ *)
+function avutil_configuration(): PAnsiChar;
+ cdecl; external av__format;
+
+(**
+ * Returns the libavutil license.
+ *)
+function avutil_license(): PAnsiChar;
+ cdecl; external av__format;
+{$IFEND}
+
type
(**
* Pixel format. Notes:
*
- * PIX_FMT_RGB32 is handled in an endian-specific manner. A RGBA
+ * PIX_FMT_RGB32 is handled in an endian-specific manner. An RGBA
* color is put together as:
* (A << 24) | (R << 16) | (G << 8) | B
- * This is stored as BGRA on little endian CPU architectures and ARGB on
- * big endian CPUs.
+ * This is stored as BGRA on little-endian CPU architectures and ARGB on
+ * big-endian CPUs.
*
* When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
* image data is stored in AVFrame.data[0]. The palette is transported in
- * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
+ * AVFrame.data[1], is 1024 bytes long (256 4-byte entries) and is
* formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
* also endian-specific). Note also that the individual RGB palette
* components stored in AVFrame.data[1] should be in the range 0..255.
* This is important as many custom PAL8 video codecs that were designed
* to run on the IBM VGA graphics adapter use 6-bit palette components.
+ *
+ * For all the 8bit per pixel formats, an RGB32 palette is in data[1] like
+ * for pal8. This palette is filled in automatically by the function
+ * allocating the picture.
+ *
+ * Note, make sure that all newly added big endian formats have pix_fmt&1==1
+ * and that all newly added little endian formats have pix_fmt&1==0
+ * this allows simpler detection of big vs little endian.
*)
PAVPixelFormat = ^TAVPixelFormat;
TAVPixelFormat = (
PIX_FMT_NONE= -1,
- PIX_FMT_YUV420P, ///< Planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
- PIX_FMT_YUYV422, ///< Packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
- PIX_FMT_RGB24, ///< Packed RGB 8:8:8, 24bpp, RGBRGB...
- PIX_FMT_BGR24, ///< Packed RGB 8:8:8, 24bpp, BGRBGR...
- PIX_FMT_YUV422P, ///< Planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
- PIX_FMT_YUV444P, ///< Planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
- PIX_FMT_RGB32, ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in cpu endianness
- PIX_FMT_YUV410P, ///< Planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
- PIX_FMT_YUV411P, ///< Planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
- PIX_FMT_RGB565, ///< Packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), in cpu endianness
- PIX_FMT_RGB555, ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in cpu endianness most significant bit to 1
+ PIX_FMT_YUV420P, ///< planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
+ PIX_FMT_YUYV422, ///< packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
+ PIX_FMT_RGB24, ///< packed RGB 8:8:8, 24bpp, RGBRGB...
+ PIX_FMT_BGR24, ///< packed RGB 8:8:8, 24bpp, BGRBGR...
+ PIX_FMT_YUV422P, ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
+ PIX_FMT_YUV444P, ///< planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
+{$IF LIBAVUTIL_VERSION <= 50001000} // 50.01.0
+ PIX_FMT_RGB32, ///< packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in CPU endianness
+{$IFEND}
+ PIX_FMT_YUV410P, ///< planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
+ PIX_FMT_YUV411P, ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
+{$IF LIBAVUTIL_VERSION <= 50000000} // 50.00.0
+ PIX_FMT_RGB565, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), in CPU endianness
+ PIX_FMT_RGB555, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in CPU endianness, most significant bit to 0
+{$IFEND}
PIX_FMT_GRAY8, ///< Y , 8bpp
PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black
PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white
PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
- PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0, 12bpp, full scale (jpeg)
- PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2, 16bpp, full scale (jpeg)
- PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4, 24bpp, full scale (jpeg)
- PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
+ PIX_FMT_YUVJ420P, ///< planar YUV 4:2:0, 12bpp, full scale (JPEG)
+ PIX_FMT_YUVJ422P, ///< planar YUV 4:2:2, 16bpp, full scale (JPEG)
+ PIX_FMT_YUVJ444P, ///< planar YUV 4:4:4, 24bpp, full scale (JPEG)
+ PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing
PIX_FMT_XVMC_MPEG2_IDCT,
- PIX_FMT_UYVY422, ///< Packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
- PIX_FMT_UYYVYY411, ///< Packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
- PIX_FMT_BGR32, ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8B 8G 8R(lsb), in cpu endianness
- PIX_FMT_BGR565, ///< Packed RGB 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), in cpu endianness
- PIX_FMT_BGR555, ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), in cpu endianness most significant bit to 1
- PIX_FMT_BGR8, ///< Packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
- PIX_FMT_BGR4, ///< Packed RGB 1:2:1, 4bpp, (msb)1B 2G 1R(lsb)
- PIX_FMT_BGR4_BYTE, ///< Packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
- PIX_FMT_RGB8, ///< Packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
- PIX_FMT_RGB4, ///< Packed RGB 1:2:1, 4bpp, (msb)1R 2G 1B(lsb)
- PIX_FMT_RGB4_BYTE, ///< Packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
- PIX_FMT_NV12, ///< Planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 for UV
+ PIX_FMT_UYVY422, ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
+ PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
+{$IF LIBAVUTIL_VERSION <= 50001000} // 50.01.0
+ PIX_FMT_BGR32, ///< packed RGB 8:8:8, 32bpp, (msb)8A 8B 8G 8R(lsb), in CPU endianness
+{$IFEND}
+{$IF LIBAVUTIL_VERSION <= 50000000} // 50.00.0
+ PIX_FMT_BGR565, ///< packed RGB 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), in CPU endianness
+ PIX_FMT_BGR555, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), in CPU endianness, most significant bit to 1
+{$IFEND}
+ PIX_FMT_BGR8, ///< packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
+ PIX_FMT_BGR4, ///< packed RGB 1:2:1, 4bpp, (msb)1B 2G 1R(lsb)
+ PIX_FMT_BGR4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
+ PIX_FMT_RGB8, ///< packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
+ PIX_FMT_RGB4, ///< packed RGB 1:2:1, 4bpp, (msb)1R 2G 1B(lsb)
+ PIX_FMT_RGB4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
+ PIX_FMT_NV12, ///< planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 for UV
PIX_FMT_NV21, ///< as above, but U and V bytes are swapped
-
- PIX_FMT_RGB32_1, ///< Packed RGB 8:8:8, 32bpp, (msb)8R 8G 8B 8A(lsb), in cpu endianness
- PIX_FMT_BGR32_1, ///< Packed RGB 8:8:8, 32bpp, (msb)8B 8G 8R 8A(lsb), in cpu endianness
-
+{$IF LIBAVUTIL_VERSION <= 50001000} // 50.01.0
+ PIX_FMT_RGB32_1, ///< packed RGB 8:8:8, 32bpp, (msb)8R 8G 8B 8A(lsb), in CPU endianness
+ PIX_FMT_BGR32_1, ///< packed RGB 8:8:8, 32bpp, (msb)8B 8G 8R 8A(lsb), in CPU endianness
+{$ELSE} // 50.02.0
+ PIX_FMT_ARGB, ///< packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
+ PIX_FMT_RGBA, ///< packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
+ PIX_FMT_ABGR, ///< packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
+ PIX_FMT_BGRA, ///< packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
+{$IFEND}
PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian
PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian
- PIX_FMT_YUV440P, ///< Planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
- PIX_FMT_YUVJ440P, ///< Planar YUV 4:4:0 full scale (jpeg)
- PIX_FMT_YUVA420P, ///< Planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
+ PIX_FMT_YUV440P, ///< planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
+ PIX_FMT_YUVJ440P, ///< planar YUV 4:4:0 full scale (JPEG)
+ PIX_FMT_YUVA420P, ///< planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
+ PIX_FMT_VDPAU_H264,///< H.264 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_VDPAU_MPEG1,///< MPEG-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_VDPAU_MPEG2,///< MPEG-2 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_VDPAU_WMV3,///< WMV3 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_VDPAU_VC1, ///< VC-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+{$IF LIBAVUTIL_VERSION >= 49015000} // 49.15.0
+ PIX_FMT_RGB48BE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, big-endian
+ PIX_FMT_RGB48LE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, little-endian
+{$IFEND}
+{$IF LIBAVUTIL_VERSION >= 50001000} // 50.01.0
+ PIX_FMT_RGB565BE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
+ PIX_FMT_RGB565LE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
+ PIX_FMT_RGB555BE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), big-endian, most significant bit to 0
+ PIX_FMT_RGB555LE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), little-endian, most significant bit to 0
+
+ PIX_FMT_BGR565BE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
+ PIX_FMT_BGR565LE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
+ PIX_FMT_BGR555BE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), big-endian, most significant bit to 1
+ PIX_FMT_BGR555LE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), little-endian, most significant bit to 1
+
+ PIX_FMT_VAAPI_MOCO, ///< HW acceleration through VA API at motion compensation entry-point, Picture.data[3] contains a vaapi_render_state struct which contains macroblocks as well as various fields extracted from headers
+ PIX_FMT_VAAPI_IDCT, ///< HW acceleration through VA API at IDCT entry-point, Picture.data[3] contains a vaapi_render_state struct which contains fields extracted from headers
+ PIX_FMT_VAAPI_VLD, ///< HW decoding through VA API, Picture.data[3] contains a vaapi_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+{$IFEND}
PIX_FMT_NB ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
);
const
{$ifdef WORDS_BIGENDIAN}
- PIX_FMT_RGBA = PIX_FMT_RGB32_1;
- PIX_FMT_BGRA = PIX_FMT_BGR32_1;
- PIX_FMT_ARGB = PIX_FMT_RGB32;
- PIX_FMT_ABGR = PIX_FMT_BGR32;
- PIX_FMT_GRAY16 = PIX_FMT_GRAY16BE;
+ {$IF LIBAVUTIL_VERSION <= 50001000} // 50.01.0
+ PIX_FMT_RGBA = PIX_FMT_RGB32_1;
+ PIX_FMT_BGRA = PIX_FMT_BGR32_1;
+ PIX_FMT_ARGB = PIX_FMT_RGB32;
+ PIX_FMT_ABGR = PIX_FMT_BGR32;
+ {$ELSE} // 50.02.0
+ PIX_FMT_RGB32 = PIX_FMT_ARGB;
+ PIX_FMT_RGB32_1 = PIX_FMT_RGBA;
+ PIX_FMT_BGR32 = PIX_FMT_ABGR;
+ PIX_FMT_BGR32_1 = PIX_FMT_BGRA;
+ {$IFEND}
+ PIX_FMT_GRAY16 = PIX_FMT_GRAY16BE;
+ {$IF LIBAVUTIL_VERSION >= 49015000} // 49.15.0
+ PIX_FMT_RGB48 = PIX_FMT_RGB48BE;
+ {$IFEND}
+ {$IF LIBAVUTIL_VERSION >= 50001000} // 50.01.0
+ PIX_FMT_RGB565 = PIX_FMT_RGB565BE;
+ PIX_FMT_RGB555 = PIX_FMT_RGB555BE;
+ PIX_FMT_BGR565 = PIX_FMT_BGR565BE;
+ PIX_FMT_BGR555 = PIX_FMT_BGR555BE
+ {$IFEND}
{$else}
- PIX_FMT_RGBA = PIX_FMT_BGR32;
- PIX_FMT_BGRA = PIX_FMT_RGB32;
- PIX_FMT_ARGB = PIX_FMT_BGR32_1;
- PIX_FMT_ABGR = PIX_FMT_RGB32_1;
- PIX_FMT_GRAY16 = PIX_FMT_GRAY16LE;
-{$endif}
+ {$IF LIBAVUTIL_VERSION <= 50001000} // 50.01.0
+ PIX_FMT_RGBA = PIX_FMT_BGR32;
+ PIX_FMT_BGRA = PIX_FMT_RGB32;
+ PIX_FMT_ARGB = PIX_FMT_BGR32_1;
+ PIX_FMT_ABGR = PIX_FMT_RGB32_1;
+ {$ELSE} // 50.02.0
+ PIX_FMT_RGB32 = PIX_FMT_BGRA;
+ PIX_FMT_RGB32_1 = PIX_FMT_ABGR;
+ PIX_FMT_BGR32 = PIX_FMT_RGBA;
+ PIX_FMT_BGR32_1 = PIX_FMT_ARGB;
+ {$IFEND}
+ PIX_FMT_GRAY16 = PIX_FMT_GRAY16LE;
+ {$IF LIBAVUTIL_VERSION >= 49015000} // 49.15.0
+ PIX_FMT_RGB48 = PIX_FMT_RGB48LE;
+ {$IFEND}
+ {$IF LIBAVUTIL_VERSION >= 50001000} // 50.01.0
+ PIX_FMT_RGB565 = PIX_FMT_RGB565LE;
+ PIX_FMT_RGB555 = PIX_FMT_RGB555LE;
+ PIX_FMT_BGR565 = PIX_FMT_BGR565LE;
+ PIX_FMT_BGR555 = PIX_FMT_BGR555LE;
+ {$IFEND}
+{$ENDIF}
{$IF LIBAVUTIL_VERSION_MAJOR < 50} // 50.0.0
PIX_FMT_UYVY411 = PIX_FMT_UYYVYY411;
@@ -183,40 +281,41 @@ const
PIX_FMT_YUV422 = PIX_FMT_YUYV422;
{$IFEND}
-(* common.h *)
+(* libavutil/common.h *) // until now MKTAG is all from common.h KMS 9/6/2009
-function MKTAG(a,b,c,d: char): integer;
+function MKTAG(a, b, c, d: AnsiChar): integer;
-(* mem.h *)
+(* libavutil/mem.h *)
+(* memory handling functions *)
(**
- * Allocate a block of \p size bytes with alignment suitable for all
+ * Allocates a block of size bytes with alignment suitable for all
* memory accesses (including vectors if available on the CPU).
* @param size Size in bytes for the memory block to be allocated.
- * @return Pointer to the allocated block, NULL if it cannot allocate
- * it.
+ * @return Pointer to the allocated block, NULL if the block cannot
+ * be allocated.
* @see av_mallocz()
*)
function av_malloc(size: cuint): pointer;
cdecl; external av__util; {av_malloc_attrib av_alloc_size(1)}
(**
- * Allocate or reallocate a block of memory.
- * If \p ptr is NULL and \p size > 0, allocate a new block. If \p
- * size is zero, free the memory block pointed by \p ptr.
+ * Allocates or reallocates a block of memory.
+ * If ptr is NULL and size > 0, allocates a new block. If
+ * size is zero, frees the memory block pointed to by ptr.
* @param size Size in bytes for the memory block to be allocated or
* reallocated.
* @param ptr Pointer to a memory block already allocated with
* av_malloc(z)() or av_realloc() or NULL.
- * @return Pointer to a newly reallocated block or NULL if it cannot
- * reallocate or the function is used to free the memory block.
+ * @return Pointer to a newly reallocated block or NULL if the block
+ * cannot be allocated or the function is used to free the memory block.
* @see av_fast_realloc()
*)
function av_realloc(ptr: pointer; size: cuint): pointer;
cdecl; external av__util; {av_alloc_size(2)}
(**
- * Free a memory block which has been allocated with av_malloc(z)() or
+ * Frees a memory block which has been allocated with av_malloc(z)() or
* av_realloc().
* @param ptr Pointer to the memory block which should be freed.
* @note ptr = NULL is explicitly allowed.
@@ -227,29 +326,28 @@ procedure av_free(ptr: pointer);
cdecl; external av__util;
(**
- * Allocate a block of \p size bytes with alignment suitable for all
+ * Allocates a block of size bytes with alignment suitable for all
* memory accesses (including vectors if available on the CPU) and
- * set to zeroes all the bytes of the block.
+ * zeroes all the bytes of the block.
* @param size Size in bytes for the memory block to be allocated.
- * @return Pointer to the allocated block, NULL if it cannot allocate
- * it.
+ * @return Pointer to the allocated block, NULL if it cannot be allocated.
* @see av_malloc()
*)
function av_mallocz(size: cuint): pointer;
cdecl; external av__util; {av_malloc_attrib av_alloc_size(1)}
(**
- * Duplicate the string \p s.
- * @param s String to be duplicated.
+ * Duplicates the string s.
+ * @param s string to be duplicated.
* @return Pointer to a newly allocated string containing a
- * copy of \p s or NULL if it cannot be allocated.
+ * copy of s or NULL if the string cannot be allocated.
*)
-function av_strdup({const} s: PChar): PChar;
+function av_strdup({const} s: PAnsiChar): PAnsiChar;
cdecl; external av__util; {av_malloc_attrib}
(**
- * Free a memory block which has been allocated with av_malloc(z)() or
- * av_realloc() and set to NULL the pointer to it.
+ * Frees a memory block which has been allocated with av_malloc(z)() or
+ * av_realloc() and set the pointer pointing to it to NULL.
* @param ptr Pointer to the pointer to the memory block which should
* be freed.
* @see av_free()
@@ -257,7 +355,7 @@ function av_strdup({const} s: PChar): PChar;
procedure av_freep (ptr: pointer);
cdecl; external av__util;
-(* log.h *)
+(* libavutil/log.h *)
const
{$IF LIBAVUTIL_VERSION_MAJOR < 50}
@@ -272,26 +370,26 @@ const
AV_LOG_QUIET = -8;
(**
- * something went really wrong and we will crash now
+ * Something went really wrong and we will crash now.
*)
AV_LOG_PANIC = 0;
(**
- * something went wrong and recovery is not possible
- * like no header in a format which depends on it or a combination
- * of parameters which are not allowed
+ * Something went wrong and recovery is not possible.
+ * For example, no header was found for a format which depends
+ * on headers or an illegal combination of parameters is used.
*)
AV_LOG_FATAL = 8;
(**
- * something went wrong and cannot losslessly be recovered
- * but not all future data is affected
+ * Something went wrong and cannot losslessly be recovered.
+ * However, not all future data is affected.
*)
AV_LOG_ERROR = 16;
(**
- * something somehow does not look correct / something which may or may not
- * lead to some problems like use of -vstrict -2
+ * Something somehow does not look correct. This may or may not
+ * lead to problems. An example would be the use of '-vstrict -2'.
*)
AV_LOG_WARNING = 24;
@@ -299,7 +397,7 @@ const
AV_LOG_VERBOSE = 40;
(**
- * stuff which is only useful for libav* developers
+ * Stuff which is only useful for libav* developers.
*)
AV_LOG_DEBUG = 48;
{$IFEND}
@@ -312,7 +410,9 @@ procedure av_log_set_level(level: cint);
implementation
-function MKTAG(a,b,c,d: char): integer;
+(* libavutil/common.h *)
+
+function MKTAG(a, b, c, d: AnsiChar): integer;
begin
Result := (ord(a) or (ord(b) shl 8) or (ord(c) shl 16) or (ord(d) shl 24));
end;