Merge commit 'b047c687'

* commit 'b047c687':
  4xm: don't rely on get_buffer() initializing the frame.
  huffyuv: split encoder and decoder into separate files.
  lavc: make pkt_{p,d}ts doxy less confusing

Conflicts:
	libavcodec/Makefile
	libavcodec/huffyuv.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/4xm.c

@@ -901,6 +901,8 @@ static int decode_frame(AVCodecContext *avctx, void *data,
                 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
                 return -1;
             }
+            for (i=0; i<avctx->height; i++)
+                memset(f->last_picture.data[0] + i*f->last_picture.linesize[0], 0, 2*avctx->width);
         }
 
         p->pict_type = AV_PICTURE_TYPE_P;

libavcodec/Makefile

@@ -190,8 +190,8 @@ OBJS-$(CONFIG_ESCAPE130_DECODER)       += escape130.o
 OBJS-$(CONFIG_EXR_DECODER)             += exr.o
 OBJS-$(CONFIG_FFV1_DECODER)            += ffv1dec.o ffv1.o
 OBJS-$(CONFIG_FFV1_ENCODER)            += ffv1enc.o ffv1.o
-OBJS-$(CONFIG_FFVHUFF_DECODER)         += huffyuv.o
-OBJS-$(CONFIG_FFVHUFF_ENCODER)         += huffyuv.o
+OBJS-$(CONFIG_FFVHUFF_DECODER)         += huffyuv.o huffyuvdec.o
+OBJS-$(CONFIG_FFVHUFF_ENCODER)         += huffyuv.o huffyuvenc.o
 OBJS-$(CONFIG_FFWAVESYNTH_DECODER)     += ffwavesynth.o
 OBJS-$(CONFIG_FLAC_DECODER)            += flacdec.o flacdata.o flac.o flacdsp.o
 OBJS-$(CONFIG_FLAC_ENCODER)            += flacenc.o flacdata.o flac.o flacdsp.o vorbis_data.o
@@ -227,8 +227,8 @@ OBJS-$(CONFIG_H264_DXVA2_HWACCEL)      += dxva2_h264.o
 OBJS-$(CONFIG_H264_VAAPI_HWACCEL)      += vaapi_h264.o
 OBJS-$(CONFIG_H264_VDA_HWACCEL)        += vda_h264.o
 OBJS-$(CONFIG_H264_VDA_DECODER)        += vda_h264_dec.o
-OBJS-$(CONFIG_HUFFYUV_DECODER)         += huffyuv.o
-OBJS-$(CONFIG_HUFFYUV_ENCODER)         += huffyuv.o
+OBJS-$(CONFIG_HUFFYUV_DECODER)         += huffyuv.o huffyuvdec.o
+OBJS-$(CONFIG_HUFFYUV_ENCODER)         += huffyuv.o huffyuvenc.o
 OBJS-$(CONFIG_IAC_DECODER)             += imc.o
 OBJS-$(CONFIG_IDCIN_DECODER)           += idcinvideo.o
 OBJS-$(CONFIG_IDF_DECODER)             += bintext.o cga_data.o

libavcodec/avcodec.h

@@ -1193,7 +1193,7 @@ typedef struct AVFrame {
     int64_t pts;
 
     /**
-     * reordered pts from the last AVPacket that has been input into the decoder
+     * pts copied from the AVPacket that was decoded to produce this frame
      * - encoding: unused
      * - decoding: Read by user.
      */

libavcodec/huffyuv.h

+/*
+ * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
+ * the algorithm used
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * huffyuv codec for libavcodec.
+ */
+
+#ifndef AVCODEC_HUFFYUV_H
+#define AVCODEC_HUFFYUV_H
+
+#include <stdint.h>
+
+#include "avcodec.h"
+#include "dsputil.h"
+#include "get_bits.h"
+#include "put_bits.h"
+
+#define VLC_BITS 11
+
+#if HAVE_BIGENDIAN
+#define B 3
+#define G 2
+#define R 1
+#define A 0
+#else
+#define B 0
+#define G 1
+#define R 2
+#define A 3
+#endif
+
+typedef enum Predictor {
+    LEFT = 0,
+    PLANE,
+    MEDIAN,
+} Predictor;
+
+typedef struct HYuvContext {
+    AVCodecContext *avctx;
+    Predictor predictor;
+    GetBitContext gb;
+    PutBitContext pb;
+    int interlaced;
+    int decorrelate;
+    int bitstream_bpp;
+    int version;
+    int yuy2;                               //use yuy2 instead of 422P
+    int bgr32;                              //use bgr32 instead of bgr24
+    int width, height;
+    int flags;
+    int context;
+    int picture_number;
+    int last_slice_end;
+    uint8_t *temp[3];
+    uint64_t stats[3][256];
+    uint8_t len[3][256];
+    uint32_t bits[3][256];
+    uint32_t pix_bgr_map[1<<VLC_BITS];
+    VLC vlc[6];                             //Y,U,V,YY,YU,YV
+    AVFrame picture;
+    uint8_t *bitstream_buffer;
+    unsigned int bitstream_buffer_size;
+    DSPContext dsp;
+} HYuvContext;
+
+void ff_huffyuv_common_init(AVCodecContext *s);
+void ff_huffyuv_common_end(HYuvContext *s);
+int  ff_huffyuv_alloc_temp(HYuvContext *s);
+int ff_huffyuv_generate_bits_table(uint32_t *dst, const uint8_t *len_table);
+
+#endif /* AVCODEC_HUFFYUV_H */