Add Apple Pixlet decoder

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Changelog

@@ -8,6 +8,7 @@ version <next>:
 - VAAPI-accelerated deinterlacing
 - config.log and other configuration files moved into avbuild/ directory
 - VAAPI-accelerated MPEG-2 and VP8 encoding
+- Apple Pixlet decoder
 
 
 version 12:

doc/general.texi

@@ -590,6 +590,7 @@ following image formats are supported:
 @item ANSI/ASCII art         @tab     @tab  X
 @item Apple Intermediate Codec @tab     @tab  X
 @item Apple MJPEG-B          @tab     @tab  X
+@item Apple Pixlet           @tab     @tab  X
 @item Apple ProRes           @tab  X  @tab  X
 @item Apple QuickDraw        @tab     @tab  X
     @tab fourcc: qdrw

libavcodec/Makefile

@@ -375,6 +375,7 @@ OBJS-$(CONFIG_PGMYUV_DECODER)          += pnmdec.o pnm.o
 OBJS-$(CONFIG_PGMYUV_ENCODER)          += pnmenc.o
 OBJS-$(CONFIG_PGSSUB_DECODER)          += pgssubdec.o
 OBJS-$(CONFIG_PICTOR_DECODER)          += pictordec.o cga_data.o
+OBJS-$(CONFIG_PIXLET_DECODER)          += pixlet.o
 OBJS-$(CONFIG_PNG_DECODER)             += png.o pngdec.o pngdsp.o
 OBJS-$(CONFIG_PNG_ENCODER)             += png.o pngenc.o
 OBJS-$(CONFIG_PPM_DECODER)             += pnmdec.o pnm.o

libavcodec/allcodecs.c

@@ -231,6 +231,7 @@ void avcodec_register_all(void)
     REGISTER_ENCDEC (PGM,               pgm);
     REGISTER_ENCDEC (PGMYUV,            pgmyuv);
     REGISTER_DECODER(PICTOR,            pictor);
+    REGISTER_DECODER(PIXLET,            pixlet);
     REGISTER_ENCDEC (PNG,               png);
     REGISTER_ENCDEC (PPM,               ppm);
     REGISTER_ENCDEC (PRORES,            prores);

libavcodec/avcodec.h

@@ -392,6 +392,7 @@ enum AVCodecID {
     AV_CODEC_ID_MAGICYUV,
     AV_CODEC_ID_TRUEMOTION2RT,
     AV_CODEC_ID_AV1,
+    AV_CODEC_ID_PIXLET,
 
     /* various PCM "codecs" */
     AV_CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs

libavcodec/codec_desc.c

@@ -1212,6 +1212,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .long_name = NULL_IF_CONFIG_SMALL("Alliance for Open Media AV1"),
         .props     = AV_CODEC_PROP_LOSSY,
     },
+    {
+        .id        = AV_CODEC_ID_PIXLET,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "pixlet",
+        .long_name = NULL_IF_CONFIG_SMALL("Apple Pixlet"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
 
     /* image codecs */
     {

libavcodec/version.h

@@ -28,7 +28,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 57
-#define LIBAVCODEC_VERSION_MINOR 34
+#define LIBAVCODEC_VERSION_MINOR 35
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

libavformat/isom.c

@@ -265,6 +265,8 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '4') },
     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', 'A') },
 
+    { AV_CODEC_ID_PIXLET, MKTAG('p', 'x', 'l', 't') },
+
     { AV_CODEC_ID_NONE, 0 },
 };
 

tests/fate/video.mak

@@ -246,6 +246,9 @@ fate-nuv: $(FATE_NUV)
 FATE_SAMPLES_AVCONV-$(call DEMDEC, PAF, PAF_VIDEO) += fate-paf-video
 fate-paf-video: CMD = framecrc -i $(TARGET_SAMPLES)/paf/hod1-partial.paf -pix_fmt rgb24 -an
 
+FATE_SAMPLES_AVCONV-$(call DEMDEC, MOV, PIXLET) += fate-pixlet
+fate-pixlet: CMD = framecrc -i $(TARGET_SAMPLES)/pxlt/pixlet.mov -an
+
 FATE_SAMPLES_AVCONV-$(call DEMDEC, AVI, QPEG) += fate-qpeg
 fate-qpeg: CMD = framecrc -i $(TARGET_SAMPLES)/qpeg/Clock.avi -an -pix_fmt rgb24
 

tests/ref/fate/pixlet

+#tb 0: 1/25
+0,          0,          0,        1,  2764800, 0xd0b6bf48