BRender PIX image decoder

Further enhancements by Vittorio Giovara and Paul B Mahol.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Changelog

@@ -6,6 +6,7 @@ version <next>:
 - shuffleplanes filter
 - replaygain data export
 - Alias PIX image encoder and decoder
+- BRender PIX image decoder
 
 
 version 10:

doc/general.texi

@@ -430,6 +430,8 @@ following image formats are supported:
     @tab Only uncompressed GIFs are generated.
 @item BMP          @tab X @tab X
     @tab Microsoft BMP image
+@item BRender PIX  @tab   @tab X
+    @tab Argonaut BRender 3D engine image format.
 @item DPX          @tab X @tab X
     @tab Digital Picture Exchange
 @item JPEG         @tab X @tab X

libavcodec/Makefile

@@ -126,6 +126,7 @@ OBJS-$(CONFIG_BMP_DECODER)             += bmp.o msrledec.o
 OBJS-$(CONFIG_BMP_ENCODER)             += bmpenc.o
 OBJS-$(CONFIG_BMV_VIDEO_DECODER)       += bmv.o
 OBJS-$(CONFIG_BMV_AUDIO_DECODER)       += bmv.o
+OBJS-$(CONFIG_BRENDER_PIX_DECODER)     += brenderpix.o
 OBJS-$(CONFIG_C93_DECODER)             += c93.o
 OBJS-$(CONFIG_CAVS_DECODER)            += cavs.o cavsdec.o cavsdsp.o \
                                           cavsdata.o mpeg12data.o

libavcodec/allcodecs.c

@@ -112,6 +112,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER(BINK,              bink);
     REGISTER_ENCDEC (BMP,               bmp);
     REGISTER_DECODER(BMV_VIDEO,         bmv_video);
+    REGISTER_DECODER(BRENDER_PIX,       brender_pix);
     REGISTER_DECODER(C93,               c93);
     REGISTER_DECODER(CAVS,              cavs);
     REGISTER_DECODER(CDGRAPHICS,        cdgraphics);

libavcodec/avcodec.h

@@ -285,6 +285,7 @@ enum AVCodecID {
     AV_CODEC_ID_HEVC,
     AV_CODEC_ID_FIC,
     AV_CODEC_ID_ALIAS_PIX,
+    AV_CODEC_ID_BRENDER_PIX,
 
     /* various PCM "codecs" */
     AV_CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs

libavcodec/codec_desc.c

@@ -1108,6 +1108,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .long_name = NULL_IF_CONFIG_SMALL("ASCII/ANSI art"),
         .props     = AV_CODEC_PROP_LOSSY,
     },
+    {
+        .id        = AV_CODEC_ID_BRENDER_PIX,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "brender_pix",
+        .long_name = NULL_IF_CONFIG_SMALL("BRender PIX image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
     {
         .id        = AV_CODEC_ID_DPX,
         .type      = AVMEDIA_TYPE_VIDEO,

libavcodec/version.h

@@ -29,7 +29,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 55
-#define LIBAVCODEC_VERSION_MINOR 37
+#define LIBAVCODEC_VERSION_MINOR 38
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

libavformat/img2.c

@@ -56,6 +56,7 @@ static const IdStrMap img_tags[] = {
     { AV_CODEC_ID_TIFF,       "tif"      },
     { AV_CODEC_ID_SGI,        "sgi"      },
     { AV_CODEC_ID_PTX,        "ptx"      },
+    { AV_CODEC_ID_BRENDER_PIX,"pix"      },
     { AV_CODEC_ID_PCX,        "pcx"      },
     { AV_CODEC_ID_SUNRAST,    "sun"      },
     { AV_CODEC_ID_SUNRAST,    "ras"      },