Merge commit '5c31eaa9998b2185e0aa04d11adff128498dc14a'
[ffmpeg.git] / libavcodec / iff.c
index a186e31..ef9ce91 100644 (file)
@@ -1,28 +1,29 @@
 /*
- * IFF PBM/ILBM bitmap decoder
+ * IFF ACBM/ANIM/DEEP/ILBM/PBM/RGB8/RGBN bitmap decoder
  * Copyright (c) 2010 Peter Ross <pross@xvid.org>
  * Copyright (c) 2010 Sebastian Vater <cdgs.basty@googlemail.com>
+ * Copyright (c) 2016 Paul B Mahol
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * 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.
  *
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
  * @file
- * IFF PBM/ILBM bitmap decoder
+ * IFF ACBM/ANIM/DEEP/ILBM/PBM/RGB8/RGBN bitmap decoder
  */
 
 #include <stdint.h>
 #include "bytestream.h"
 #include "avcodec.h"
 #include "internal.h"
+#include "mathops.h"
+
+// TODO: masking bits
+typedef enum {
+    MASK_NONE,
+    MASK_HAS_MASK,
+    MASK_HAS_TRANSPARENT_COLOR,
+    MASK_LASSO
+} mask_type;
 
 typedef struct IffContext {
     AVFrame *frame;
     int planesize;
     uint8_t * planebuf;
+    uint8_t * ham_buf;      ///< temporary buffer for planar to chunky conversation
+    uint32_t *ham_palbuf;   ///< HAM decode table
+    uint32_t *mask_buf;     ///< temporary buffer for palette indices
+    uint32_t *mask_palbuf;  ///< masking palette table
+    unsigned  compression;  ///< delta compression method used
+    unsigned  is_short;     ///< short compression method used
+    unsigned  is_interlaced;///< video is interlaced
+    unsigned  is_brush;     ///< video is in ANBR format
+    unsigned  bpp;          ///< bits per plane to decode (differs from bits_per_coded_sample if HAM)
+    unsigned  ham;          ///< 0 if non-HAM or number of hold bits (6 for bpp > 6, 4 otherwise)
+    unsigned  flags;        ///< 1 for EHB, 0 is no extra half darkening
+    unsigned  transparency; ///< TODO: transparency color index in palette
+    unsigned  masking;      ///< TODO: masking method used
     int init; // 1 if buffer and palette data already initialized, 0 otherwise
+    int16_t   tvdc[16];     ///< TVDC lookup table
+    GetByteContext gb;
+    uint8_t *video[2];
+    unsigned video_size;
+    uint32_t *pal[2];
 } IffContext;
 
 #define LUT8_PART(plane, v)                             \
@@ -124,33 +152,229 @@ static av_always_inline uint32_t gray2rgb(const uint32_t x) {
  */
 static int cmap_read_palette(AVCodecContext *avctx, uint32_t *pal)
 {
+    IffContext *s = avctx->priv_data;
     int count, i;
+    const uint8_t *const palette = avctx->extradata + AV_RB16(avctx->extradata);
+    int palette_size = avctx->extradata_size - AV_RB16(avctx->extradata);
 
     if (avctx->bits_per_coded_sample > 8) {
-        av_log(avctx, AV_LOG_ERROR, "bit_per_coded_sample > 8 not supported\n");
+        av_log(avctx, AV_LOG_ERROR, "bits_per_coded_sample > 8 not supported\n");
         return AVERROR_INVALIDDATA;
     }
 
     count = 1 << avctx->bits_per_coded_sample;
     // If extradata is smaller than actually needed, fill the remaining with black.
-    count = FFMIN(avctx->extradata_size / 3, count);
+    count = FFMIN(palette_size / 3, count);
     if (count) {
         for (i = 0; i < count; i++)
-            pal[i] = 0xFF000000 | AV_RB24(avctx->extradata + i * 3);
+            pal[i] = 0xFF000000 | AV_RB24(palette + i*3);
+        if (s->flags && count >= 32) { // EHB
+            for (i = 0; i < 32; i++)
+                pal[i + 32] = 0xFF000000 | (AV_RB24(palette + i*3) & 0xFEFEFE) >> 1;
+            count = FFMAX(count, 64);
+        }
     } else { // Create gray-scale color palette for bps < 8
         count = 1 << avctx->bits_per_coded_sample;
 
         for (i = 0; i < count; i++)
             pal[i] = 0xFF000000 | gray2rgb((i * 255) >> avctx->bits_per_coded_sample);
     }
+    if (s->masking == MASK_HAS_MASK) {
+        memcpy(pal + (1 << avctx->bits_per_coded_sample), pal, count * 4);
+        for (i = 0; i < count; i++)
+            pal[i] &= 0xFFFFFF;
+    } else if (s->masking == MASK_HAS_TRANSPARENT_COLOR &&
+        s->transparency < 1 << avctx->bits_per_coded_sample)
+        pal[s->transparency] &= 0xFFFFFF;
+    return 0;
+}
+
+/**
+ * Extracts the IFF extra context and updates internal
+ * decoder structures.
+ *
+ * @param avctx the AVCodecContext where to extract extra context to
+ * @param avpkt the AVPacket to extract extra context from or NULL to use avctx
+ * @return >= 0 in case of success, a negative error code otherwise
+ */
+static int extract_header(AVCodecContext *const avctx,
+                          const AVPacket *const avpkt)
+{
+    IffContext *s = avctx->priv_data;
+    const uint8_t *buf;
+    unsigned buf_size = 0;
+    int i, palette_size;
+
+    if (avctx->extradata_size < 2) {
+        av_log(avctx, AV_LOG_ERROR, "not enough extradata\n");
+        return AVERROR_INVALIDDATA;
+    }
+    palette_size = avctx->extradata_size - AV_RB16(avctx->extradata);
+
+    if (avpkt && avctx->codec_tag == MKTAG('A', 'N', 'I', 'M')) {
+        uint32_t chunk_id;
+        uint64_t data_size;
+        GetByteContext *gb = &s->gb;
+
+        bytestream2_skip(gb, 4);
+        while (bytestream2_get_bytes_left(gb) >= 1) {
+            chunk_id  = bytestream2_get_le32(gb);
+            data_size = bytestream2_get_be32(gb);
+
+            if (chunk_id == MKTAG('B', 'M', 'H', 'D')) {
+                bytestream2_skip(gb, data_size + (data_size & 1));
+            } else if (chunk_id == MKTAG('A', 'N', 'H', 'D')) {
+                unsigned extra;
+                if (data_size < 40)
+                    return AVERROR_INVALIDDATA;
+
+                s->compression = (bytestream2_get_byte(gb) << 8) | (s->compression & 0xFF);
+                bytestream2_skip(gb, 19);
+                extra = bytestream2_get_be32(gb);
+                s->is_short = !(extra & 1);
+                s->is_brush = extra == 2;
+                s->is_interlaced = !!(extra & 0x40);
+                data_size -= 24;
+                bytestream2_skip(gb, data_size + (data_size & 1));
+            } else if (chunk_id == MKTAG('D', 'L', 'T', 'A') ||
+                       chunk_id == MKTAG('B', 'O', 'D', 'Y')) {
+                if (chunk_id == MKTAG('B','O','D','Y'))
+                    s->compression &= 0xFF;
+                break;
+            } else if (chunk_id == MKTAG('C', 'M', 'A', 'P')) {
+                int count = data_size / 3;
+                uint32_t *pal = s->pal[0];
+
+                if (count > 256)
+                    return AVERROR_INVALIDDATA;
+                if (s->ham) {
+                    for (i = 0; i < count; i++)
+                        pal[i] = 0xFF000000 | bytestream2_get_le24(gb);
+                } else {
+                    for (i = 0; i < count; i++)
+                        pal[i] = 0xFF000000 | bytestream2_get_be24(gb);
+                }
+                bytestream2_skip(gb, data_size & 1);
+            } else {
+                bytestream2_skip(gb, data_size + (data_size&1));
+            }
+        }
+    } else if (!avpkt) {
+        buf = avctx->extradata;
+        buf_size = bytestream_get_be16(&buf);
+        if (buf_size <= 1 || palette_size < 0) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "Invalid palette size received: %u -> palette data offset: %d\n",
+                   buf_size, palette_size);
+            return AVERROR_INVALIDDATA;
+        }
+    }
+
+    if (buf_size >= 41) {
+        s->compression  = bytestream_get_byte(&buf);
+        s->bpp          = bytestream_get_byte(&buf);
+        s->ham          = bytestream_get_byte(&buf);
+        s->flags        = bytestream_get_byte(&buf);
+        s->transparency = bytestream_get_be16(&buf);
+        s->masking      = bytestream_get_byte(&buf);
+        for (i = 0; i < 16; i++)
+            s->tvdc[i] = bytestream_get_be16(&buf);
+
+        if (s->masking == MASK_HAS_MASK) {
+            if (s->bpp >= 8 && !s->ham) {
+                avctx->pix_fmt = AV_PIX_FMT_RGB32;
+                av_freep(&s->mask_buf);
+                av_freep(&s->mask_palbuf);
+                s->mask_buf = av_malloc((s->planesize * 32) + AV_INPUT_BUFFER_PADDING_SIZE);
+                if (!s->mask_buf)
+                    return AVERROR(ENOMEM);
+                if (s->bpp > 16) {
+                    av_log(avctx, AV_LOG_ERROR, "bpp %d too large for palette\n", s->bpp);
+                    av_freep(&s->mask_buf);
+                    return AVERROR(ENOMEM);
+                }
+                s->mask_palbuf = av_malloc((2 << s->bpp) * sizeof(uint32_t) + AV_INPUT_BUFFER_PADDING_SIZE);
+                if (!s->mask_palbuf) {
+                    av_freep(&s->mask_buf);
+                    return AVERROR(ENOMEM);
+                }
+            }
+            s->bpp++;
+        } else if (s->masking != MASK_NONE && s->masking != MASK_HAS_TRANSPARENT_COLOR) {
+            av_log(avctx, AV_LOG_ERROR, "Masking not supported\n");
+            return AVERROR_PATCHWELCOME;
+        }
+        if (!s->bpp || s->bpp > 32) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid number of bitplanes: %u\n", s->bpp);
+            return AVERROR_INVALIDDATA;
+        } else if (s->ham >= 8) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid number of hold bits for HAM: %u\n", s->ham);
+            return AVERROR_INVALIDDATA;
+        }
+
+        av_freep(&s->ham_buf);
+        av_freep(&s->ham_palbuf);
+
+        if (s->ham) {
+            int i, count = FFMIN(palette_size / 3, 1 << s->ham);
+            int ham_count;
+            const uint8_t *const palette = avctx->extradata + AV_RB16(avctx->extradata);
+
+            s->ham_buf = av_malloc((s->planesize * 8) + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (!s->ham_buf)
+                return AVERROR(ENOMEM);
+
+            ham_count = 8 * (1 << s->ham);
+            s->ham_palbuf = av_malloc((ham_count << !!(s->masking == MASK_HAS_MASK)) * sizeof (uint32_t) + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (!s->ham_palbuf) {
+                av_freep(&s->ham_buf);
+                return AVERROR(ENOMEM);
+            }
+
+            if (count) { // HAM with color palette attached
+                // prefill with black and palette and set HAM take direct value mask to zero
+                memset(s->ham_palbuf, 0, (1 << s->ham) * 2 * sizeof (uint32_t));
+                for (i=0; i < count; i++) {
+                    s->ham_palbuf[i*2+1] = 0xFF000000 | AV_RL24(palette + i*3);
+                }
+                count = 1 << s->ham;
+            } else { // HAM with grayscale color palette
+                count = 1 << s->ham;
+                for (i=0; i < count; i++) {
+                    s->ham_palbuf[i*2]   = 0xFF000000; // take direct color value from palette
+                    s->ham_palbuf[i*2+1] = 0xFF000000 | av_le2ne32(gray2rgb((i * 255) >> s->ham));
+                }
+            }
+            for (i=0; i < count; i++) {
+                uint32_t tmp = i << (8 - s->ham);
+                tmp |= tmp >> s->ham;
+                s->ham_palbuf[(i+count)*2]     = 0xFF00FFFF; // just modify blue color component
+                s->ham_palbuf[(i+count*2)*2]   = 0xFFFFFF00; // just modify red color component
+                s->ham_palbuf[(i+count*3)*2]   = 0xFFFF00FF; // just modify green color component
+                s->ham_palbuf[(i+count)*2+1]   = 0xFF000000 | tmp << 16;
+                s->ham_palbuf[(i+count*2)*2+1] = 0xFF000000 | tmp;
+                s->ham_palbuf[(i+count*3)*2+1] = 0xFF000000 | tmp << 8;
+            }
+            if (s->masking == MASK_HAS_MASK) {
+                for (i = 0; i < ham_count; i++)
+                    s->ham_palbuf[(1 << s->bpp) + i] = s->ham_palbuf[i] | 0xFF000000;
+            }
+        }
+    }
+
     return 0;
 }
 
 static av_cold int decode_end(AVCodecContext *avctx)
 {
     IffContext *s = avctx->priv_data;
-    av_frame_free(&s->frame);
     av_freep(&s->planebuf);
+    av_freep(&s->ham_buf);
+    av_freep(&s->ham_palbuf);
+    av_freep(&s->video[0]);
+    av_freep(&s->video[1]);
+    av_freep(&s->pal[0]);
+    av_freep(&s->pal[1]);
     return 0;
 }
 
@@ -160,11 +384,29 @@ static av_cold int decode_init(AVCodecContext *avctx)
     int err;
 
     if (avctx->bits_per_coded_sample <= 8) {
-        avctx->pix_fmt = (avctx->bits_per_coded_sample < 8 ||
-                          avctx->extradata_size) ? AV_PIX_FMT_PAL8
-                                                 : AV_PIX_FMT_GRAY8;
+        int palette_size;
+
+        if (avctx->extradata_size >= 2)
+            palette_size = avctx->extradata_size - AV_RB16(avctx->extradata);
+        else
+            palette_size = 0;
+        avctx->pix_fmt = (avctx->bits_per_coded_sample < 8) ||
+                         (avctx->extradata_size >= 2 && palette_size) ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
     } else if (avctx->bits_per_coded_sample <= 32) {
-        avctx->pix_fmt = AV_PIX_FMT_BGR32;
+        if (avctx->codec_tag == MKTAG('R', 'G', 'B', '8')) {
+            avctx->pix_fmt = AV_PIX_FMT_RGB32;
+        } else if (avctx->codec_tag == MKTAG('R', 'G', 'B', 'N')) {
+            avctx->pix_fmt = AV_PIX_FMT_RGB444;
+        } else if (avctx->codec_tag != MKTAG('D', 'E', 'E', 'P')) {
+            if (avctx->bits_per_coded_sample == 24) {
+                avctx->pix_fmt = AV_PIX_FMT_0BGR32;
+            } else if (avctx->bits_per_coded_sample == 32) {
+                avctx->pix_fmt = AV_PIX_FMT_BGR32;
+            } else {
+                avpriv_request_sample(avctx, "unknown bits_per_coded_sample");
+                return AVERROR_PATCHWELCOME;
+            }
+        }
     } else {
         return AVERROR_INVALIDDATA;
     }
@@ -176,12 +418,21 @@ static av_cold int decode_init(AVCodecContext *avctx)
     if (!s->planebuf)
         return AVERROR(ENOMEM);
 
-    s->frame = av_frame_alloc();
-    if (!s->frame) {
-        decode_end(avctx);
-        return AVERROR(ENOMEM);
+    s->bpp = avctx->bits_per_coded_sample;
+
+    if (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M')) {
+        s->video_size = FFALIGN(avctx->width, 2) * avctx->height * s->bpp;
+        s->video[0] = av_calloc(FFALIGN(avctx->width, 2) * avctx->height, s->bpp);
+        s->video[1] = av_calloc(FFALIGN(avctx->width, 2) * avctx->height, s->bpp);
+        s->pal[0] = av_calloc(256, sizeof(*s->pal[0]));
+        s->pal[1] = av_calloc(256, sizeof(*s->pal[1]));
+        if (!s->video[0] || !s->video[1] || !s->pal[0] || !s->pal[1])
+            return AVERROR(ENOMEM);
     }
 
+    if ((err = extract_header(avctx, NULL)) < 0)
+        return err;
+
     return 0;
 }
 
@@ -195,6 +446,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
 static void decodeplane8(uint8_t *dst, const uint8_t *buf, int buf_size, int plane)
 {
     const uint64_t *lut = plane8_lut[plane];
+    if (plane >= 8) {
+        av_log(NULL, AV_LOG_WARNING, "Ignoring extra planes beyond 8\n");
+        return;
+    }
     do {
         uint64_t v = AV_RN64A(dst) | lut[*buf++];
         AV_WN64A(dst, v);
@@ -227,6 +482,47 @@ static void decodeplane32(uint32_t *dst, const uint8_t *buf, int buf_size, int p
     } while (--buf_size);
 }
 
+#define DECODE_HAM_PLANE32(x)       \
+    first       = buf[x] << 1;      \
+    second      = buf[(x)+1] << 1;  \
+    delta      &= pal[first++];     \
+    delta      |= pal[first];       \
+    dst[x]      = delta;            \
+    delta      &= pal[second++];    \
+    delta      |= pal[second];      \
+    dst[(x)+1]  = delta
+
+/**
+ * Converts one line of HAM6/8-encoded chunky buffer to 24bpp.
+ *
+ * @param dst the destination 24bpp buffer
+ * @param buf the source 8bpp chunky buffer
+ * @param pal the HAM decode table
+ * @param buf_size the plane size in bytes
+ */
+static void decode_ham_plane32(uint32_t *dst, const uint8_t  *buf,
+                               const uint32_t *const pal, unsigned buf_size)
+{
+    uint32_t delta = pal[1]; /* first palette entry */
+    do {
+        uint32_t first, second;
+        DECODE_HAM_PLANE32(0);
+        DECODE_HAM_PLANE32(2);
+        DECODE_HAM_PLANE32(4);
+        DECODE_HAM_PLANE32(6);
+        buf += 8;
+        dst += 8;
+    } while (--buf_size);
+}
+
+static void lookup_pal_indicies(uint32_t *dst, const uint32_t *buf,
+                         const uint32_t *const pal, unsigned width)
+{
+    do {
+        *dst++ = pal[*buf++];
+    } while (--width);
+}
+
 /**
  * Decode one complete byterun1 encoded line.
  *
@@ -237,162 +533,1234 @@ static void decodeplane32(uint32_t *dst, const uint8_t *buf, int buf_size, int p
  * @return number of consumed bytes in byterun1 compressed bitstream
  */
 static int decode_byterun(uint8_t *dst, int dst_size,
-                          const uint8_t *buf, const uint8_t *const buf_end)
+                          GetByteContext *gb)
 {
-    const uint8_t *const buf_start = buf;
     unsigned x;
-    for (x = 0; x < dst_size && buf < buf_end;) {
+    for (x = 0; x < dst_size && bytestream2_get_bytes_left(gb) > 0;) {
         unsigned length;
-        const int8_t value = *buf++;
+        const int8_t value = bytestream2_get_byte(gb);
         if (value >= 0) {
-            length = value + 1;
-            memcpy(dst + x, buf, FFMIN3(length, dst_size - x, buf_end - buf));
-            buf += length;
+            length = FFMIN3(value + 1, dst_size - x, bytestream2_get_bytes_left(gb));
+            bytestream2_get_buffer(gb, dst + x, length);
+            if (length < value + 1)
+                bytestream2_skip(gb, value + 1 - length);
         } else if (value > -128) {
-            length = -value + 1;
-            memset(dst + x, *buf++, FFMIN(length, dst_size - x));
+            length = FFMIN(-value + 1, dst_size - x);
+            memset(dst + x, bytestream2_get_byte(gb), length);
         } else { // noop
             continue;
         }
         x += length;
     }
-    return buf - buf_start;
+    if (x < dst_size) {
+        av_log(NULL, AV_LOG_WARNING, "decode_byterun ended before plane size\n");
+        memset(dst+x, 0, dst_size - x);
+    }
+    return bytestream2_tell(gb);
 }
 
-static int decode_frame_ilbm(AVCodecContext *avctx,
-                             void *data, int *got_frame,
-                             AVPacket *avpkt)
+#define DECODE_RGBX_COMMON(type) \
+    if (!length) { \
+        length = bytestream2_get_byte(gb); \
+        if (!length) { \
+            length = bytestream2_get_be16(gb); \
+            if (!length) \
+                return; \
+        } \
+    } \
+    for (i = 0; i < length; i++) { \
+        *(type *)(dst + y*linesize + x * sizeof(type)) = pixel; \
+        x += 1; \
+        if (x >= width) { \
+            y += 1; \
+            if (y >= height) \
+                return; \
+            x = 0; \
+        } \
+    }
+
+/**
+ * Decode RGB8 buffer
+ * @param[out] dst Destination buffer
+ * @param width Width of destination buffer (pixels)
+ * @param height Height of destination buffer (pixels)
+ * @param linesize Line size of destination buffer (bytes)
+ */
+static void decode_rgb8(GetByteContext *gb, uint8_t *dst, int width, int height, int linesize)
 {
-    IffContext *s          = avctx->priv_data;
-    const uint8_t *buf     = avpkt->data;
-    int buf_size           = avpkt->size;
-    const uint8_t *buf_end = buf + buf_size;
-    int y, plane, res;
+    int x = 0, y = 0, i, length;
+    while (bytestream2_get_bytes_left(gb) >= 4) {
+        uint32_t pixel = 0xFF000000 | bytestream2_get_be24(gb);
+        length = bytestream2_get_byte(gb) & 0x7F;
+        DECODE_RGBX_COMMON(uint32_t)
+    }
+}
 
-    if ((res = ff_reget_buffer(avctx, s->frame)) < 0)
-        return res;
+/**
+ * Decode RGBN buffer
+ * @param[out] dst Destination buffer
+ * @param width Width of destination buffer (pixels)
+ * @param height Height of destination buffer (pixels)
+ * @param linesize Line size of destination buffer (bytes)
+ */
+static void decode_rgbn(GetByteContext *gb, uint8_t *dst, int width, int height, int linesize)
+{
+    int x = 0, y = 0, i, length;
+    while (bytestream2_get_bytes_left(gb) >= 2) {
+        uint32_t pixel = bytestream2_get_be16u(gb);
+        length = pixel & 0x7;
+        pixel >>= 4;
+        DECODE_RGBX_COMMON(uint16_t)
+    }
+}
 
-    if (!s->init && avctx->bits_per_coded_sample <= 8 &&
-        avctx->pix_fmt != AV_PIX_FMT_GRAY8) {
-        if ((res = cmap_read_palette(avctx, (uint32_t *)s->frame->data[1])) < 0)
-            return res;
+/**
+ * Decode DEEP RLE 32-bit buffer
+ * @param[out] dst Destination buffer
+ * @param[in] src Source buffer
+ * @param src_size Source buffer size (bytes)
+ * @param width Width of destination buffer (pixels)
+ * @param height Height of destination buffer (pixels)
+ * @param linesize Line size of destination buffer (bytes)
+ */
+static void decode_deep_rle32(uint8_t *dst, const uint8_t *src, int src_size, int width, int height, int linesize)
+{
+    const uint8_t *src_end = src + src_size;
+    int x = 0, y = 0, i;
+    while (src + 5 <= src_end) {
+        int opcode;
+        opcode = *(int8_t *)src++;
+        if (opcode >= 0) {
+            int size = opcode + 1;
+            for (i = 0; i < size; i++) {
+                int length = FFMIN(size - i, width);
+                memcpy(dst + y*linesize + x * 4, src, length * 4);
+                src += length * 4;
+                x += length;
+                i += length;
+                if (x >= width) {
+                    x = 0;
+                    y += 1;
+                    if (y >= height)
+                        return;
+                }
+            }
+        } else {
+            int size = -opcode + 1;
+            uint32_t pixel = AV_RN32(src);
+            for (i = 0; i < size; i++) {
+                *(uint32_t *)(dst + y*linesize + x * 4) = pixel;
+                x += 1;
+                if (x >= width) {
+                    x = 0;
+                    y += 1;
+                    if (y >= height)
+                        return;
+                }
+            }
+            src += 4;
+        }
     }
-    s->init = 1;
+}
 
-    if (avctx->codec_tag == MKTAG('I', 'L', 'B', 'M')) { // interleaved
-        if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
-            for (y = 0; y < avctx->height; y++) {
-                uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
-                memset(row, 0, avctx->width);
-                for (plane = 0; plane < avctx->bits_per_coded_sample && buf < buf_end;
-                     plane++) {
-                    decodeplane8(row, buf, FFMIN(s->planesize, buf_end - buf), plane);
-                    buf += s->planesize;
+/**
+ * Decode DEEP TVDC 32-bit buffer
+ * @param[out] dst Destination buffer
+ * @param[in] src Source buffer
+ * @param src_size Source buffer size (bytes)
+ * @param width Width of destination buffer (pixels)
+ * @param height Height of destination buffer (pixels)
+ * @param linesize Line size of destination buffer (bytes)
+ * @param[int] tvdc TVDC lookup table
+ */
+static void decode_deep_tvdc32(uint8_t *dst, const uint8_t *src, int src_size, int width, int height, int linesize, const int16_t *tvdc)
+{
+    int x = 0, y = 0, plane = 0;
+    int8_t pixel = 0;
+    int i, j;
+
+    for (i = 0; i < src_size * 2;) {
+#define GETNIBBLE ((i & 1) ?  (src[i>>1] & 0xF) : (src[i>>1] >> 4))
+        int d = tvdc[GETNIBBLE];
+        i++;
+        if (d) {
+            pixel += d;
+            dst[y * linesize + x*4 + plane] = pixel;
+            x++;
+        } else {
+            if (i >= src_size * 2)
+                return;
+            d = GETNIBBLE + 1;
+            i++;
+            d = FFMIN(d, width - x);
+            for (j = 0; j < d; j++) {
+                dst[y * linesize + x*4 + plane] = pixel;
+                x++;
+            }
+        }
+        if (x >= width) {
+            plane++;
+            if (plane >= 4) {
+                y++;
+                if (y >= height)
+                    return;
+                plane = 0;
+            }
+            x = 0;
+            pixel = 0;
+            i = (i + 1) & ~1;
+        }
+    }
+}
+
+static void decode_short_horizontal_delta(uint8_t *dst,
+                                          const uint8_t *buf, const uint8_t *buf_end,
+                                          int w, int bpp, int dst_size)
+{
+    int planepitch = FFALIGN(w, 16) >> 3;
+    int pitch = planepitch * bpp;
+    GetByteContext ptrs, gb;
+    PutByteContext pb;
+    unsigned ofssrc, pos;
+    int i, k;
+
+    bytestream2_init(&ptrs, buf, buf_end - buf);
+    bytestream2_init_writer(&pb, dst, dst_size);
+
+    for (k = 0; k < bpp; k++) {
+        ofssrc = bytestream2_get_be32(&ptrs);
+        pos = 0;
+
+        if (!ofssrc)
+            continue;
+
+        if (ofssrc >= buf_end - buf)
+            continue;
+
+        bytestream2_init(&gb, buf + ofssrc, buf_end - (buf + ofssrc));
+        while (bytestream2_peek_be16(&gb) != 0xFFFF && bytestream2_get_bytes_left(&gb) > 3) {
+            int16_t offset = bytestream2_get_be16(&gb);
+            unsigned noffset;
+
+            if (offset >= 0) {
+                unsigned data = bytestream2_get_be16(&gb);
+
+                pos += offset * 2;
+                noffset = (pos / planepitch) * pitch + (pos % planepitch) + k * planepitch;
+                bytestream2_seek_p(&pb, noffset, SEEK_SET);
+                bytestream2_put_be16(&pb, data);
+            } else {
+                uint16_t count = bytestream2_get_be16(&gb);
+
+                pos += 2 * -(offset + 2);
+                for (i = 0; i < count; i++) {
+                    uint16_t data = bytestream2_get_be16(&gb);
+
+                    pos += 2;
+                    noffset = (pos / planepitch) * pitch + (pos % planepitch) + k * planepitch;
+                    bytestream2_seek_p(&pb, noffset, SEEK_SET);
+                    bytestream2_put_be16(&pb, data);
                 }
             }
-        } else { // AV_PIX_FMT_BGR32
-            for (y = 0; y < avctx->height; y++) {
-                uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
-                memset(row, 0, avctx->width << 2);
-                for (plane = 0; plane < avctx->bits_per_coded_sample && buf < buf_end;
-                     plane++) {
-                    decodeplane32((uint32_t *)row, buf,
-                                  FFMIN(s->planesize, buf_end - buf), plane);
-                    buf += s->planesize;
+        }
+    }
+}
+
+static void decode_byte_vertical_delta(uint8_t *dst,
+                                       const uint8_t *buf, const uint8_t *buf_end,
+                                       int w, int xor, int bpp, int dst_size)
+{
+    int ncolumns = ((w + 15) / 16) * 2;
+    int dstpitch = ncolumns * bpp;
+    unsigned ofsdst, ofssrc, opcode, x;
+    GetByteContext ptrs, gb;
+    PutByteContext pb;
+    int i, j, k;
+
+    bytestream2_init(&ptrs, buf, buf_end - buf);
+    bytestream2_init_writer(&pb, dst, dst_size);
+
+    for (k = 0; k < bpp; k++) {
+        ofssrc = bytestream2_get_be32(&ptrs);
+
+        if (!ofssrc)
+            continue;
+
+        if (ofssrc >= buf_end - buf)
+            continue;
+
+        bytestream2_init(&gb, buf + ofssrc, buf_end - (buf + ofssrc));
+        for (j = 0; j < ncolumns; j++) {
+            ofsdst = j + k * ncolumns;
+
+            i = bytestream2_get_byte(&gb);
+            while (i > 0) {
+                opcode = bytestream2_get_byte(&gb);
+
+                if (opcode == 0) {
+                    opcode  = bytestream2_get_byte(&gb);
+                    x = bytestream2_get_byte(&gb);
+
+                    while (opcode) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        if (xor && ofsdst < dst_size) {
+                            bytestream2_put_byte(&pb, dst[ofsdst] ^ x);
+                        } else {
+                            bytestream2_put_byte(&pb, x);
+                        }
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                } else if (opcode < 0x80) {
+                    ofsdst += opcode * dstpitch;
+                } else {
+                    opcode &= 0x7f;
+
+                    while (opcode) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        if (xor && ofsdst < dst_size) {
+                            bytestream2_put_byte(&pb, dst[ofsdst] ^ bytestream2_get_byte(&gb));
+                        } else {
+                            bytestream2_put_byte(&pb, bytestream2_get_byte(&gb));
+                        }
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
                 }
+                i--;
             }
         }
-    } else if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) { // IFF-PBM
-        for (y = 0; y < avctx->height && buf < buf_end; y++) {
-            uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
-            memcpy(row, buf, FFMIN(avctx->width, buf_end - buf));
-            buf += avctx->width + (avctx->width % 2); // padding if odd
+    }
+}
+
+static void decode_delta_j(uint8_t *dst,
+                           const uint8_t *buf, const uint8_t *buf_end,
+                           int w, int h, int bpp, int dst_size)
+{
+    int32_t pitch;
+    uint8_t *ptr;
+    uint32_t type, flag, cols, groups, rows, bytes;
+    uint32_t offset;
+    int planepitch_byte = (w + 7) / 8;
+    int planepitch = ((w + 15) / 16) * 2;
+    int kludge_j, b, g, r, d;
+    GetByteContext gb;
+
+    pitch = planepitch * bpp;
+    kludge_j = w < 320 ? (320 - w) / 8 / 2 : 0;
+
+    bytestream2_init(&gb, buf, buf_end - buf);
+
+    while (bytestream2_get_bytes_left(&gb) >= 2) {
+        type = bytestream2_get_be16(&gb);
+
+        switch (type) {
+        case 0:
+            return;
+        case 1:
+            flag   = bytestream2_get_be16(&gb);
+            cols   = bytestream2_get_be16(&gb);
+            groups = bytestream2_get_be16(&gb);
+
+            for (g = 0; g < groups; g++) {
+                offset = bytestream2_get_be16(&gb);
+
+                if (bytestream2_get_bytes_left(&gb) < 1)
+                    return;
+
+                if (kludge_j)
+                    offset = ((offset / (320 / 8)) * pitch) + (offset % (320 / 8)) - kludge_j;
+                else
+                    offset = ((offset / planepitch_byte) * pitch) + (offset % planepitch_byte);
+
+                for (b = 0; b < cols; b++) {
+                    for (d = 0; d < bpp; d++) {
+                        uint8_t value = bytestream2_get_byte(&gb);
+
+                        if (offset >= dst_size)
+                            return;
+                        ptr = dst + offset;
+
+                        if (flag)
+                            ptr[0] ^= value;
+                        else
+                            ptr[0]  = value;
+
+                        offset += planepitch;
+                    }
+                }
+                if ((cols * bpp) & 1)
+                    bytestream2_skip(&gb, 1);
+            }
+            break;
+        case 2:
+            flag   = bytestream2_get_be16(&gb);
+            rows   = bytestream2_get_be16(&gb);
+            bytes  = bytestream2_get_be16(&gb);
+            groups = bytestream2_get_be16(&gb);
+
+            for (g = 0; g < groups; g++) {
+                offset = bytestream2_get_be16(&gb);
+
+                if (kludge_j)
+                    offset = ((offset / (320 / 8)) * pitch) + (offset % (320/ 8)) - kludge_j;
+                else
+                    offset = ((offset / planepitch_byte) * pitch) + (offset % planepitch_byte);
+
+                for (r = 0; r < rows; r++) {
+                    for (d = 0; d < bpp; d++) {
+                        unsigned noffset = offset + (r * pitch) + d * planepitch;
+
+                        if (bytestream2_get_bytes_left(&gb) < 1)
+                            return;
+
+                        for (b = 0; b < bytes; b++) {
+                            uint8_t value = bytestream2_get_byte(&gb);
+
+                            if (noffset >= dst_size)
+                                return;
+                            ptr = dst + noffset;
+
+                            if (flag)
+                                ptr[0] ^= value;
+                            else
+                                ptr[0]  = value;
+
+                            noffset++;
+                        }
+                    }
+                }
+                if ((rows * bytes * bpp) & 1)
+                    bytestream2_skip(&gb, 1);
+            }
+            break;
+        default:
+            return;
         }
     }
+}
 
-    if ((res = av_frame_ref(data, s->frame)) < 0)
-        return res;
+static void decode_short_vertical_delta(uint8_t *dst,
+                                        const uint8_t *buf, const uint8_t *buf_end,
+                                        int w, int bpp, int dst_size)
+{
+    int ncolumns = (w + 15) >> 4;
+    int dstpitch = ncolumns * bpp * 2;
+    unsigned ofsdst, ofssrc, ofsdata, opcode, x;
+    GetByteContext ptrs, gb, dptrs, dgb;
+    PutByteContext pb;
+    int i, j, k;
 
-    *got_frame = 1;
+    if (buf_end - buf <= 64)
+        return;
 
-    return buf_size;
+    bytestream2_init(&ptrs, buf, buf_end - buf);
+    bytestream2_init(&dptrs, buf + 32, (buf_end - buf) - 32);
+    bytestream2_init_writer(&pb, dst, dst_size);
+
+    for (k = 0; k < bpp; k++) {
+        ofssrc = bytestream2_get_be32(&ptrs);
+        ofsdata = bytestream2_get_be32(&dptrs);
+
+        if (!ofssrc)
+            continue;
+
+        if (ofssrc >= buf_end - buf)
+            return;
+
+        if (ofsdata >= buf_end - buf)
+            return;
+
+        bytestream2_init(&gb, buf + ofssrc, buf_end - (buf + ofssrc));
+        bytestream2_init(&dgb, buf + ofsdata, buf_end - (buf + ofsdata));
+        for (j = 0; j < ncolumns; j++) {
+            ofsdst = (j + k * ncolumns) * 2;
+
+            i = bytestream2_get_byte(&gb);
+            while (i > 0) {
+                opcode = bytestream2_get_byte(&gb);
+
+                if (opcode == 0) {
+                    opcode = bytestream2_get_byte(&gb);
+                    x = bytestream2_get_be16(&dgb);
+
+                    while (opcode) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        bytestream2_put_be16(&pb, x);
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                } else if (opcode < 0x80) {
+                    ofsdst += opcode * dstpitch;
+                } else {
+                    opcode &= 0x7f;
+
+                    while (opcode) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        bytestream2_put_be16(&pb, bytestream2_get_be16(&dgb));
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                }
+                i--;
+            }
+        }
+    }
 }
 
-static int decode_frame_byterun1(AVCodecContext *avctx,
-                                 void *data, int *got_frame,
-                                 AVPacket *avpkt)
+static void decode_long_vertical_delta(uint8_t *dst,
+                                       const uint8_t *buf, const uint8_t *buf_end,
+                                       int w, int bpp, int dst_size)
+{
+    int ncolumns = (w + 31) >> 5;
+    int dstpitch = ((w + 15) / 16 * 2) * bpp;
+    unsigned ofsdst, ofssrc, ofsdata, opcode, x;
+    GetByteContext ptrs, gb, dptrs, dgb;
+    PutByteContext pb;
+    int i, j, k, h;
+
+    if (buf_end - buf <= 64)
+        return;
+
+    h = (((w + 15) / 16 * 2) != ((w + 31) / 32 * 4)) ? 1 : 0;
+    bytestream2_init(&ptrs, buf, buf_end - buf);
+    bytestream2_init(&dptrs, buf + 32, (buf_end - buf) - 32);
+    bytestream2_init_writer(&pb, dst, dst_size);
+
+    for (k = 0; k < bpp; k++) {
+        ofssrc = bytestream2_get_be32(&ptrs);
+        ofsdata = bytestream2_get_be32(&dptrs);
+
+        if (!ofssrc)
+            continue;
+
+        if (ofssrc >= buf_end - buf)
+            return;
+
+        if (ofsdata >= buf_end - buf)
+            return;
+
+        bytestream2_init(&gb, buf + ofssrc, buf_end - (buf + ofssrc));
+        bytestream2_init(&dgb, buf + ofsdata, buf_end - (buf + ofsdata));
+        for (j = 0; j < ncolumns; j++) {
+            ofsdst = (j + k * ncolumns) * 4 - h * (2 * k);
+
+            i = bytestream2_get_byte(&gb);
+            while (i > 0) {
+                opcode = bytestream2_get_byte(&gb);
+
+                if (opcode == 0) {
+                    opcode = bytestream2_get_byte(&gb);
+                    if (h && (j == (ncolumns - 1))) {
+                        x = bytestream2_get_be16(&dgb);
+                        bytestream2_skip(&dgb, 2);
+                    } else {
+                        x = bytestream2_get_be32(&dgb);
+                    }
+
+                    while (opcode) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        if (h && (j == (ncolumns - 1))) {
+                            bytestream2_put_be16(&pb, x);
+                        } else {
+                            bytestream2_put_be32(&pb, x);
+                        }
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                } else if (opcode < 0x80) {
+                    ofsdst += opcode * dstpitch;
+                } else {
+                    opcode &= 0x7f;
+
+                    while (opcode) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        if (h && (j == (ncolumns - 1))) {
+                            bytestream2_put_be16(&pb, bytestream2_get_be16(&dgb));
+                            bytestream2_skip(&dgb, 2);
+                        } else {
+                            bytestream2_put_be32(&pb, bytestream2_get_be32(&dgb));
+                        }
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                }
+                i--;
+            }
+        }
+    }
+}
+
+static void decode_short_vertical_delta2(uint8_t *dst,
+                                         const uint8_t *buf, const uint8_t *buf_end,
+                                         int w, int bpp, int dst_size)
+{
+    int ncolumns = (w + 15) >> 4;
+    int dstpitch = ncolumns * bpp * 2;
+    unsigned ofsdst, ofssrc, opcode, x;
+    GetByteContext ptrs, gb;
+    PutByteContext pb;
+    int i, j, k;
+
+    bytestream2_init(&ptrs, buf, buf_end - buf);
+    bytestream2_init_writer(&pb, dst, dst_size);
+
+    for (k = 0; k < bpp; k++) {
+        ofssrc = bytestream2_get_be32(&ptrs);
+
+        if (!ofssrc)
+            continue;
+
+        if (ofssrc >= buf_end - buf)
+            continue;
+
+        bytestream2_init(&gb, buf + ofssrc, buf_end - (buf + ofssrc));
+        for (j = 0; j < ncolumns; j++) {
+            ofsdst = (j + k * ncolumns) * 2;
+
+            i = bytestream2_get_be16(&gb);
+            while (i > 0 && bytestream2_get_bytes_left(&gb) > 4) {
+                opcode = bytestream2_get_be16(&gb);
+
+                if (opcode == 0) {
+                    opcode = bytestream2_get_be16(&gb);
+                    x = bytestream2_get_be16(&gb);
+
+                    while (opcode && bytestream2_get_bytes_left_p(&pb) > 1) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        bytestream2_put_be16(&pb, x);
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                } else if (opcode < 0x8000) {
+                    ofsdst += opcode * dstpitch;
+                } else {
+                    opcode &= 0x7fff;
+
+                    while (opcode && bytestream2_get_bytes_left(&gb) > 1 &&
+                           bytestream2_get_bytes_left_p(&pb) > 1) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        bytestream2_put_be16(&pb, bytestream2_get_be16(&gb));
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                }
+                i--;
+            }
+        }
+    }
+}
+
+static void decode_long_vertical_delta2(uint8_t *dst,
+                                        const uint8_t *buf, const uint8_t *buf_end,
+                                        int w, int bpp, int dst_size)
+{
+    int ncolumns = (w + 31) >> 5;
+    int dstpitch = ((w + 15) / 16 * 2) * bpp;
+    unsigned ofsdst, ofssrc, opcode, x;
+    unsigned skip = 0x80000000, mask = skip - 1;
+    GetByteContext ptrs, gb;
+    PutByteContext pb;
+    int i, j, k, h;
+
+    h = (((w + 15) / 16 * 2) != ((w + 31) / 32 * 4)) ? 1 : 0;
+    bytestream2_init(&ptrs, buf, buf_end - buf);
+    bytestream2_init_writer(&pb, dst, dst_size);
+
+    for (k = 0; k < bpp; k++) {
+        ofssrc = bytestream2_get_be32(&ptrs);
+
+        if (!ofssrc)
+            continue;
+
+        if (ofssrc >= buf_end - buf)
+            continue;
+
+        bytestream2_init(&gb, buf + ofssrc, buf_end - (buf + ofssrc));
+        for (j = 0; j < ncolumns; j++) {
+            ofsdst = (j + k * ncolumns) * 4 - h * (2 * k);
+
+            if (h && (j == (ncolumns - 1))) {
+                skip = 0x8000;
+                mask = skip - 1;
+            }
+
+            i = bytestream2_get_be32(&gb);
+            while (i > 0 && bytestream2_get_bytes_left(&gb) > 4) {
+                opcode = bytestream2_get_be32(&gb);
+
+                if (opcode == 0) {
+                    if (h && (j == ncolumns - 1)) {
+                        opcode = bytestream2_get_be16(&gb);
+                        x = bytestream2_get_be16(&gb);
+                    } else {
+                        opcode = bytestream2_get_be32(&gb);
+                        x = bytestream2_get_be32(&gb);
+                    }
+
+                    while (opcode && bytestream2_get_bytes_left_p(&pb) > 1) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        if (h && (j == ncolumns - 1))
+                            bytestream2_put_be16(&pb, x);
+                        else
+                            bytestream2_put_be32(&pb, x);
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                } else if (opcode < skip) {
+                    ofsdst += opcode * dstpitch;
+                } else {
+                    opcode &= mask;
+
+                    while (opcode && bytestream2_get_bytes_left(&gb) > 1 &&
+                           bytestream2_get_bytes_left_p(&pb) > 1) {
+                        bytestream2_seek_p(&pb, ofsdst, SEEK_SET);
+                        if (h && (j == ncolumns - 1)) {
+                            bytestream2_put_be16(&pb, bytestream2_get_be16(&gb));
+                        } else {
+                            bytestream2_put_be32(&pb, bytestream2_get_be32(&gb));
+                        }
+                        ofsdst += dstpitch;
+                        opcode--;
+                    }
+                }
+                i--;
+            }
+        }
+    }
+}
+
+static void decode_delta_d(uint8_t *dst,
+                           const uint8_t *buf, const uint8_t *buf_end,
+                           int w, int flag, int bpp, int dst_size)
+{
+    int planepitch = FFALIGN(w, 16) >> 3;
+    int pitch = planepitch * bpp;
+    int planepitch_byte = (w + 7) / 8;
+    unsigned entries, ofssrc;
+    GetByteContext gb, ptrs;
+    PutByteContext pb;
+    int k;
+
+    if (buf_end - buf <= 4 * bpp)
+        return;
+
+    bytestream2_init_writer(&pb, dst, dst_size);
+    bytestream2_init(&ptrs, buf, bpp * 4);
+
+    for (k = 0; k < bpp; k++) {
+        ofssrc = bytestream2_get_be32(&ptrs);
+
+        if (!ofssrc)
+            continue;
+
+        if (ofssrc >= buf_end - buf)
+            continue;
+
+        bytestream2_init(&gb, buf + ofssrc, buf_end - (buf + ofssrc));
+
+        entries = bytestream2_get_be32(&gb);
+        while (entries && bytestream2_get_bytes_left(&gb) >= 8) {
+            int32_t opcode  = bytestream2_get_be32(&gb);
+            unsigned offset = bytestream2_get_be32(&gb);
+
+            bytestream2_seek_p(&pb, (offset / planepitch_byte) * pitch + (offset % planepitch_byte) + k * planepitch, SEEK_SET);
+            if (opcode >= 0) {
+                uint32_t x = bytestream2_get_be32(&gb);
+                while (opcode && bytestream2_get_bytes_left_p(&pb) > 0) {
+                    bytestream2_put_be32(&pb, x);
+                    bytestream2_skip_p(&pb, pitch - 4);
+                    opcode--;
+                }
+            } else {
+                opcode = -opcode;
+                while (opcode && bytestream2_get_bytes_left(&gb) > 0) {
+                    bytestream2_put_be32(&pb, bytestream2_get_be32(&gb));
+                    bytestream2_skip_p(&pb, pitch - 4);
+                    opcode--;
+                }
+            }
+            entries--;
+        }
+    }
+}
+
+static void decode_delta_e(uint8_t *dst,
+                           const uint8_t *buf, const uint8_t *buf_end,
+                           int w, int flag, int bpp, int dst_size)
+{
+    int planepitch = FFALIGN(w, 16) >> 3;
+    int pitch = planepitch * bpp;
+    int planepitch_byte = (w + 7) / 8;
+    unsigned entries, ofssrc;
+    GetByteContext gb, ptrs;
+    PutByteContext pb;
+    int k;
+
+    if (buf_end - buf <= 4 * bpp)
+        return;
+
+    bytestream2_init_writer(&pb, dst, dst_size);
+    bytestream2_init(&ptrs, buf, bpp * 4);
+
+    for (k = 0; k < bpp; k++) {
+        ofssrc = bytestream2_get_be32(&ptrs);
+
+        if (!ofssrc)
+            continue;
+
+        if (ofssrc >= buf_end - buf)
+            continue;
+
+        bytestream2_init(&gb, buf + ofssrc, buf_end - (buf + ofssrc));
+
+        entries = bytestream2_get_be16(&gb);
+        while (entries && bytestream2_get_bytes_left(&gb) >= 6) {
+            int16_t opcode  = bytestream2_get_be16(&gb);
+            unsigned offset = bytestream2_get_be32(&gb);
+
+            bytestream2_seek_p(&pb, (offset / planepitch_byte) * pitch + (offset % planepitch_byte) + k * planepitch, SEEK_SET);
+            if (opcode >= 0) {
+                uint16_t x = bytestream2_get_be16(&gb);
+                while (opcode && bytestream2_get_bytes_left_p(&pb) > 0) {
+                    bytestream2_put_be16(&pb, x);
+                    bytestream2_skip_p(&pb, pitch - 2);
+                    opcode--;
+                }
+            } else {
+                opcode = -opcode;
+                while (opcode && bytestream2_get_bytes_left(&gb) > 0) {
+                    bytestream2_put_be16(&pb, bytestream2_get_be16(&gb));
+                    bytestream2_skip_p(&pb, pitch - 2);
+                    opcode--;
+                }
+            }
+            entries--;
+        }
+    }
+}
+
+static void decode_delta_l(uint8_t *dst,
+                           const uint8_t *buf, const uint8_t *buf_end,
+                           int w, int flag, int bpp, int dst_size)
+{
+    GetByteContext off0, off1, dgb, ogb;
+    PutByteContext pb;
+    unsigned poff0, poff1;
+    int i, k, dstpitch;
+    int planepitch_byte = (w + 7) / 8;
+    int planepitch = ((w + 15) / 16) * 2;
+    int pitch = planepitch * bpp;
+
+    if (buf_end - buf <= 64)
+        return;
+
+    bytestream2_init(&off0, buf, buf_end - buf);
+    bytestream2_init(&off1, buf + 32, buf_end - (buf + 32));
+    bytestream2_init_writer(&pb, dst, dst_size);
+
+    dstpitch = flag ? (((w + 7) / 8) * bpp): 2;
+
+    for (k = 0; k < bpp; k++) {
+        poff0 = bytestream2_get_be32(&off0);
+        poff1 = bytestream2_get_be32(&off1);
+
+        if (!poff0)
+            continue;
+
+        if (2LL * poff0 >= buf_end - buf)
+            return;
+
+        if (2LL * poff1 >= buf_end - buf)
+            return;
+
+        bytestream2_init(&dgb, buf + 2 * poff0, buf_end - (buf + 2 * poff0));
+        bytestream2_init(&ogb, buf + 2 * poff1, buf_end - (buf + 2 * poff1));
+
+        while ((bytestream2_peek_be16(&ogb)) != 0xFFFF && bytestream2_get_bytes_left(&ogb) >= 4) {
+            uint32_t offset = bytestream2_get_be16(&ogb);
+            int16_t cnt = bytestream2_get_be16(&ogb);
+            uint16_t data;
+
+            offset = ((2 * offset) / planepitch_byte) * pitch + ((2 * offset) % planepitch_byte) + k * planepitch;
+            if (cnt < 0) {
+                bytestream2_seek_p(&pb, offset, SEEK_SET);
+                cnt = -cnt;
+                data = bytestream2_get_be16(&dgb);
+                for (i = 0; i < cnt; i++) {
+                    bytestream2_put_be16(&pb, data);
+                    bytestream2_skip_p(&pb, dstpitch - 2);
+                }
+            } else {
+                bytestream2_seek_p(&pb, offset, SEEK_SET);
+                for (i = 0; i < cnt; i++) {
+                    data = bytestream2_get_be16(&dgb);
+                    bytestream2_put_be16(&pb, data);
+                    bytestream2_skip_p(&pb, dstpitch - 2);
+                }
+            }
+        }
+    }
+}
+
+static int unsupported(AVCodecContext *avctx)
+{
+    IffContext *s = avctx->priv_data;
+    avpriv_request_sample(avctx, "bitmap (compression 0x%0x, bpp %i, ham %i, interlaced %i)", s->compression, s->bpp, s->ham, s->is_interlaced);
+    return AVERROR_INVALIDDATA;
+}
+
+static int decode_frame(AVCodecContext *avctx,
+                        void *data, int *got_frame,
+                        AVPacket *avpkt)
 {
     IffContext *s          = avctx->priv_data;
+    AVFrame *frame         = data;
     const uint8_t *buf     = avpkt->data;
     int buf_size           = avpkt->size;
     const uint8_t *buf_end = buf + buf_size;
     int y, plane, res;
+    GetByteContext *gb = &s->gb;
+    const AVPixFmtDescriptor *desc;
 
-    if ((res = ff_reget_buffer(avctx, s->frame)) < 0)
+    bytestream2_init(gb, avpkt->data, avpkt->size);
+
+    if ((res = extract_header(avctx, avpkt)) < 0)
+        return res;
+
+    if ((res = ff_get_buffer(avctx, frame, 0)) < 0)
         return res;
+    s->frame = frame;
+
+    buf      += bytestream2_tell(gb);
+    buf_size -= bytestream2_tell(gb);
+    desc = av_pix_fmt_desc_get(avctx->pix_fmt);
 
     if (!s->init && avctx->bits_per_coded_sample <= 8 &&
-        avctx->pix_fmt != AV_PIX_FMT_GRAY8) {
-        if ((res = cmap_read_palette(avctx, (uint32_t *)s->frame->data[1])) < 0)
+        avctx->pix_fmt == AV_PIX_FMT_PAL8) {
+        if ((res = cmap_read_palette(avctx, (uint32_t *)frame->data[1])) < 0)
+            return res;
+    } else if (!s->init && avctx->bits_per_coded_sample <= 8 &&
+               avctx->pix_fmt == AV_PIX_FMT_RGB32) {
+        if ((res = cmap_read_palette(avctx, s->mask_palbuf)) < 0)
             return res;
     }
     s->init = 1;
 
-    if (avctx->codec_tag == MKTAG('I', 'L', 'B', 'M')) { // interleaved
+    if (s->compression <= 0xff && (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M'))) {
+        if (avctx->pix_fmt == AV_PIX_FMT_PAL8)
+            memcpy(s->pal[0], s->frame->data[1], 256 * 4);
+    }
+
+    switch (s->compression) {
+    case 0x0:
+        if (avctx->codec_tag == MKTAG('A', 'C', 'B', 'M')) {
+            if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
+                memset(frame->data[0], 0, avctx->height * frame->linesize[0]);
+                for (plane = 0; plane < s->bpp; plane++) {
+                    for (y = 0; y < avctx->height && buf < buf_end; y++) {
+                        uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                        decodeplane8(row, buf, FFMIN(s->planesize, buf_end - buf), plane);
+                        buf += s->planesize;
+                    }
+                }
+            } else if (s->ham) { // HAM to AV_PIX_FMT_BGR32
+                memset(frame->data[0], 0, avctx->height * frame->linesize[0]);
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memset(s->ham_buf, 0, s->planesize * 8);
+                    for (plane = 0; plane < s->bpp; plane++) {
+                        const uint8_t * start = buf + (plane * avctx->height + y) * s->planesize;
+                        if (start >= buf_end)
+                            break;
+                        decodeplane8(s->ham_buf, start, FFMIN(s->planesize, buf_end - start), plane);
+                    }
+                    decode_ham_plane32((uint32_t *)row, s->ham_buf, s->ham_palbuf, s->planesize);
+                }
+            } else
+                return unsupported(avctx);
+        } else if (avctx->codec_tag == MKTAG('D', 'E', 'E', 'P')) {
+            int raw_width = avctx->width * (av_get_bits_per_pixel(desc) >> 3);
+            int x;
+            for (y = 0; y < avctx->height && buf < buf_end; y++) {
+                uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                memcpy(row, buf, FFMIN(raw_width, buf_end - buf));
+                buf += raw_width;
+                if (avctx->pix_fmt == AV_PIX_FMT_BGR32) {
+                    for (x = 0; x < avctx->width; x++)
+                        row[4 * x + 3] = row[4 * x + 3] & 0xF0 | (row[4 * x + 3] >> 4);
+                }
+            }
+        } else if (avctx->codec_tag == MKTAG('I', 'L', 'B', 'M') || // interleaved
+                   avctx->codec_tag == MKTAG('A', 'N', 'I', 'M')) {
+            if (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M'))
+                memcpy(s->video[0], buf, FFMIN(buf_end - buf, s->video_size));
+            if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memset(row, 0, avctx->width);
+                    for (plane = 0; plane < s->bpp && buf < buf_end; plane++) {
+                        decodeplane8(row, buf, FFMIN(s->planesize, buf_end - buf), plane);
+                        buf += s->planesize;
+                    }
+                }
+            } else if (s->ham) { // HAM to AV_PIX_FMT_BGR32
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memset(s->ham_buf, 0, s->planesize * 8);
+                    for (plane = 0; plane < s->bpp && buf < buf_end; plane++) {
+                        decodeplane8(s->ham_buf, buf, FFMIN(s->planesize, buf_end - buf), plane);
+                        buf += s->planesize;
+                    }
+                    decode_ham_plane32((uint32_t *)row, s->ham_buf, s->ham_palbuf, s->planesize);
+                }
+            } else { // AV_PIX_FMT_BGR32
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memset(row, 0, avctx->width << 2);
+                    for (plane = 0; plane < s->bpp && buf < buf_end; plane++) {
+                        decodeplane32((uint32_t *)row, buf,
+                                      FFMIN(s->planesize, buf_end - buf), plane);
+                        buf += s->planesize;
+                    }
+                }
+            }
+        } else if (avctx->codec_tag == MKTAG('P', 'B', 'M', ' ')) { // IFF-PBM
+            if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
+                for (y = 0; y < avctx->height && buf_end > buf; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memcpy(row, buf, FFMIN(avctx->width, buf_end - buf));
+                    buf += avctx->width + (avctx->width % 2); // padding if odd
+                }
+            } else if (s->ham) { // IFF-PBM: HAM to AV_PIX_FMT_BGR32
+                for (y = 0; y < avctx->height && buf_end > buf; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memcpy(s->ham_buf, buf, FFMIN(avctx->width, buf_end - buf));
+                    buf += avctx->width + (avctx->width & 1); // padding if odd
+                    decode_ham_plane32((uint32_t *)row, s->ham_buf, s->ham_palbuf, s->planesize);
+                }
+            } else
+                return unsupported(avctx);
+        }
+        break;
+    case 0x1:
+        if (avctx->codec_tag == MKTAG('I', 'L', 'B', 'M') || // interleaved
+            avctx->codec_tag == MKTAG('A', 'N', 'I', 'M')) {
+            if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
+                uint8_t *video = s->video[0];
+
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memset(row, 0, avctx->width);
+                    for (plane = 0; plane < s->bpp; plane++) {
+                        buf += decode_byterun(s->planebuf, s->planesize, gb);
+                        if (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M')) {
+                            memcpy(video, s->planebuf, s->planesize);
+                            video += s->planesize;
+                        }
+                        decodeplane8(row, s->planebuf, s->planesize, plane);
+                    }
+                }
+            } else if (avctx->bits_per_coded_sample <= 8) { //8-bit (+ mask) to AV_PIX_FMT_BGR32
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memset(s->mask_buf, 0, avctx->width * sizeof(uint32_t));
+                    for (plane = 0; plane < s->bpp; plane++) {
+                        buf += decode_byterun(s->planebuf, s->planesize, gb);
+                        decodeplane32(s->mask_buf, s->planebuf, s->planesize, plane);
+                    }
+                    lookup_pal_indicies((uint32_t *)row, s->mask_buf, s->mask_palbuf, avctx->width);
+                }
+            } else if (s->ham) { // HAM to AV_PIX_FMT_BGR32
+                uint8_t *video = s->video[0];
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memset(s->ham_buf, 0, s->planesize * 8);
+                    for (plane = 0; plane < s->bpp; plane++) {
+                        buf += decode_byterun(s->planebuf, s->planesize, gb);
+                        if (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M')) {
+                            memcpy(video, s->planebuf, s->planesize);
+                            video += s->planesize;
+                        }
+                        decodeplane8(s->ham_buf, s->planebuf, s->planesize, plane);
+                    }
+                    decode_ham_plane32((uint32_t *)row, s->ham_buf, s->ham_palbuf, s->planesize);
+                }
+            } else { // AV_PIX_FMT_BGR32
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    memset(row, 0, avctx->width << 2);
+                    for (plane = 0; plane < s->bpp; plane++) {
+                        buf += decode_byterun(s->planebuf, s->planesize, gb);
+                        decodeplane32((uint32_t *)row, s->planebuf, s->planesize, plane);
+                    }
+                }
+            }
+        } else if (avctx->codec_tag == MKTAG('P', 'B', 'M', ' ')) { // IFF-PBM
+            if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    buf += decode_byterun(row, avctx->width, gb);
+                }
+            } else if (s->ham) { // IFF-PBM: HAM to AV_PIX_FMT_BGR32
+                for (y = 0; y < avctx->height; y++) {
+                    uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                    buf += decode_byterun(s->ham_buf, avctx->width, gb);
+                    decode_ham_plane32((uint32_t *)row, s->ham_buf, s->ham_palbuf, s->planesize);
+                }
+            } else
+                return unsupported(avctx);
+        } else if (avctx->codec_tag == MKTAG('D', 'E', 'E', 'P')) { // IFF-DEEP
+            if (av_get_bits_per_pixel(desc) == 32)
+                decode_deep_rle32(frame->data[0], buf, buf_size, avctx->width, avctx->height, frame->linesize[0]);
+            else
+                return unsupported(avctx);
+        }
+        break;
+    case 0x4:
+        if (avctx->codec_tag == MKTAG('R', 'G', 'B', '8') && avctx->pix_fmt == AV_PIX_FMT_RGB32)
+            decode_rgb8(gb, frame->data[0], avctx->width, avctx->height, frame->linesize[0]);
+        else if (avctx->codec_tag == MKTAG('R', 'G', 'B', 'N') && avctx->pix_fmt == AV_PIX_FMT_RGB444)
+            decode_rgbn(gb, frame->data[0], avctx->width, avctx->height, frame->linesize[0]);
+        else
+            return unsupported(avctx);
+        break;
+    case 0x5:
+        if (avctx->codec_tag == MKTAG('D', 'E', 'E', 'P')) {
+            if (av_get_bits_per_pixel(desc) == 32)
+                decode_deep_tvdc32(frame->data[0], buf, buf_size, avctx->width, avctx->height, frame->linesize[0], s->tvdc);
+            else
+                return unsupported(avctx);
+        } else
+            return unsupported(avctx);
+        break;
+    case 0x300:
+    case 0x301:
+        decode_short_horizontal_delta(s->video[0], buf, buf_end, avctx->width, s->bpp, s->video_size);
+        break;
+    case 0x500:
+    case 0x501:
+        decode_byte_vertical_delta(s->video[0], buf, buf_end, avctx->width, s->is_brush, s->bpp, s->video_size);
+        break;
+    case 0x700:
+    case 0x701:
+        if (s->is_short)
+            decode_short_vertical_delta(s->video[0], buf, buf_end, avctx->width, s->bpp, s->video_size);
+        else
+            decode_long_vertical_delta(s->video[0], buf, buf_end, avctx->width, s->bpp, s->video_size);
+        break;
+    case 0x800:
+    case 0x801:
+        if (s->is_short)
+            decode_short_vertical_delta2(s->video[0], buf, buf_end, avctx->width, s->bpp, s->video_size);
+        else
+            decode_long_vertical_delta2(s->video[0], buf, buf_end, avctx->width, s->bpp, s->video_size);
+        break;
+    case 0x4a00:
+    case 0x4a01:
+        decode_delta_j(s->video[0], buf, buf_end, avctx->width, avctx->height, s->bpp, s->video_size);
+        break;
+    case 0x6400:
+    case 0x6401:
+        if (s->is_interlaced)
+            return unsupported(avctx);
+        decode_delta_d(s->video[0], buf, buf_end, avctx->width, s->is_interlaced, s->bpp, s->video_size);
+        break;
+    case 0x6500:
+    case 0x6501:
+        if (s->is_interlaced)
+            return unsupported(avctx);
+        decode_delta_e(s->video[0], buf, buf_end, avctx->width, s->is_interlaced, s->bpp, s->video_size);
+        break;
+    case 0x6c00:
+    case 0x6c01:
+        decode_delta_l(s->video[0], buf, buf_end, avctx->width, s->is_short, s->bpp, s->video_size);
+        break;
+    default:
+        return unsupported(avctx);
+    }
+
+    if (s->compression <= 0xff && (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M'))) {
+        memcpy(s->pal[1], s->pal[0], 256 * 4);
+        memcpy(s->video[1], s->video[0], s->video_size);
+    }
+
+    if (s->compression > 0xff) {
         if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
+            buf = s->video[0];
             for (y = 0; y < avctx->height; y++) {
-                uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
+                uint8_t *row = &frame->data[0][y * frame->linesize[0]];
                 memset(row, 0, avctx->width);
-                for (plane = 0; plane < avctx->bits_per_coded_sample; plane++) {
-                    buf += decode_byterun(s->planebuf, s->planesize, buf, buf_end);
-                    decodeplane8(row, s->planebuf, s->planesize, plane);
+                for (plane = 0; plane < s->bpp; plane++) {
+                    decodeplane8(row, buf, s->planesize, plane);
+                    buf += s->planesize;
                 }
             }
-        } else { // AV_PIX_FMT_BGR32
+            memcpy(frame->data[1], s->pal[0], 256 * 4);
+        } else if (s->ham) {
+            int i, count = 1 << s->ham;
+
+            buf = s->video[0];
+            memset(s->ham_palbuf, 0, (1 << s->ham) * 2 * sizeof(uint32_t));
+            for (i = 0; i < count; i++) {
+                s->ham_palbuf[i*2+1] = s->pal[0][i];
+            }
+            for (i = 0; i < count; i++) {
+                uint32_t tmp = i << (8 - s->ham);
+                tmp |= tmp >> s->ham;
+                s->ham_palbuf[(i+count)*2]     = 0xFF00FFFF;
+                s->ham_palbuf[(i+count*2)*2]   = 0xFFFFFF00;
+                s->ham_palbuf[(i+count*3)*2]   = 0xFFFF00FF;
+                s->ham_palbuf[(i+count)*2+1]   = 0xFF000000 | tmp << 16;
+                s->ham_palbuf[(i+count*2)*2+1] = 0xFF000000 | tmp;
+                s->ham_palbuf[(i+count*3)*2+1] = 0xFF000000 | tmp << 8;
+            }
+            if (s->masking == MASK_HAS_MASK) {
+                for (i = 0; i < 8 * (1 << s->ham); i++)
+                    s->ham_palbuf[(1 << s->bpp) + i] = s->ham_palbuf[i] | 0xFF000000;
+            }
             for (y = 0; y < avctx->height; y++) {
-                uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
-                memset(row, 0, avctx->width << 2);
-                for (plane = 0; plane < avctx->bits_per_coded_sample; plane++) {
-                    buf += decode_byterun(s->planebuf, s->planesize, buf, buf_end);
-                    decodeplane32((uint32_t *)row, s->planebuf, s->planesize, plane);
+                uint8_t *row = &frame->data[0][y * frame->linesize[0]];
+                memset(s->ham_buf, 0, s->planesize * 8);
+                for (plane = 0; plane < s->bpp; plane++) {
+                    decodeplane8(s->ham_buf, buf, s->planesize, plane);
+                    buf += s->planesize;
                 }
+                decode_ham_plane32((uint32_t *)row, s->ham_buf, s->ham_palbuf, s->planesize);
             }
+        } else {
+            return unsupported(avctx);
         }
-    } else {
-        for (y = 0; y < avctx->height; y++) {
-            uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
-            buf += decode_byterun(row, avctx->width, buf, buf_end);
+
+        if (!s->is_brush) {
+            FFSWAP(uint8_t *, s->video[0], s->video[1]);
+            FFSWAP(uint32_t *, s->pal[0], s->pal[1]);
         }
     }
 
-    if ((res = av_frame_ref(data, s->frame)) < 0)
-        return res;
+    if (avpkt->flags & AV_PKT_FLAG_KEY) {
+        frame->key_frame = 1;
+        frame->pict_type = AV_PICTURE_TYPE_I;
+    } else {
+        frame->key_frame = 0;
+        frame->pict_type = AV_PICTURE_TYPE_P;
+    }
 
     *got_frame = 1;
 
     return buf_size;
 }
 
+#if CONFIG_IFF_ILBM_DECODER
 AVCodec ff_iff_ilbm_decoder = {
-    .name           = "iff_ilbm",
-    .long_name      = NULL_IF_CONFIG_SMALL("IFF ILBM"),
+    .name           = "iff",
+    .long_name      = NULL_IF_CONFIG_SMALL("IFF ACBM/ANIM/DEEP/ILBM/PBM/RGB8/RGBN"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_IFF_ILBM,
     .priv_data_size = sizeof(IffContext),
     .init           = decode_init,
     .close          = decode_end,
-    .decode         = decode_frame_ilbm,
-    .capabilities   = AV_CODEC_CAP_DR1,
-};
-
-AVCodec ff_iff_byterun1_decoder = {
-    .name           = "iff_byterun1",
-    .long_name      = NULL_IF_CONFIG_SMALL("IFF ByteRun1"),
-    .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = AV_CODEC_ID_IFF_BYTERUN1,
-    .priv_data_size = sizeof(IffContext),
-    .init           = decode_init,
-    .close          = decode_end,
-    .decode         = decode_frame_byterun1,
+    .decode         = decode_frame,
     .capabilities   = AV_CODEC_CAP_DR1,
 };
+#endif