tiff encoder by (Bartlomiej Wolowiec b.wolowiec students mimuw edu pl)

Originally committed as revision 8608 to svn://svn.ffmpeg.org/ffmpeg/trunk

Changelog

@@ -63,7 +63,7 @@ version <next>
 - Delphine Software .cin demuxer/audio and video decoder
 - Tiertex .seq demuxer/video decoder
 - MTV demuxer
-- TIFF picture decoder
+- TIFF picture encoder and decoder
 - GIF picture decoder
 - Intel Music decoder
 - Musepack decoder

doc/ffmpeg-doc.texi

@@ -922,7 +922,7 @@ following image formats are supported:
 @item animated GIF @tab X @tab X @tab Only uncompressed GIFs are generated.
 @item PNG          @tab X @tab X @tab 2 bit and 4 bit/pixel not supported yet.
 @item Targa        @tab   @tab X @tab Targa (.TGA) image format.
-@item TIFF         @tab   @tab X @tab Only 24 bit/pixel images are supported.
+@item TIFF         @tab X @tab X @tab YUV, JPEG and some extension is not supported yet.
 @item SGI          @tab X @tab X @tab SGI RGB image format
 @end multitable
 

libavcodec/Makefile

@@ -144,6 +144,7 @@ OBJS-$(CONFIG_TARGA_ENCODER)           += targaenc.o rle.o
 OBJS-$(CONFIG_THEORA_DECODER)          += vp3.o xiph.o
 OBJS-$(CONFIG_TIERTEXSEQVIDEO_DECODER) += tiertexseqv.o
 OBJS-$(CONFIG_TIFF_DECODER)            += tiff.o lzw.o
+OBJS-$(CONFIG_TIFF_ENCODER)            += tiffenc.o rle.o
 OBJS-$(CONFIG_TRUEMOTION1_DECODER)     += truemotion1.o
 OBJS-$(CONFIG_TRUEMOTION2_DECODER)     += truemotion2.o
 OBJS-$(CONFIG_TRUESPEECH_DECODER)      += truespeech.o

libavcodec/allcodecs.c

@@ -132,7 +132,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER(THEORA, theora);
     REGISTER_DECODER(THP, thp);
     REGISTER_DECODER(TIERTEXSEQVIDEO, tiertexseqvideo);
-    REGISTER_DECODER(TIFF, tiff);
+    REGISTER_ENCDEC (TIFF, tiff);
     REGISTER_DECODER(TRUEMOTION1, truemotion1);
     REGISTER_DECODER(TRUEMOTION2, truemotion2);
     REGISTER_DECODER(TSCC, tscc);

libavcodec/avcodec.h

@@ -2222,6 +2222,7 @@ extern AVCodec sonic_encoder;
 extern AVCodec sonic_ls_encoder;
 extern AVCodec svq1_encoder;
 extern AVCodec targa_encoder;
+extern AVCodec tiff_encoder;
 extern AVCodec vcr1_encoder;
 extern AVCodec vorbis_encoder;
 extern AVCodec wmav1_encoder;

libavcodec/tiff.c

@@ -24,49 +24,8 @@
 #include <zlib.h>
 #endif
 #include "lzw.h"
+#include "tiff.h"
 
-/* abridged list of TIFF tags */
-enum TiffTags{
-    TIFF_WIDTH = 0x100,
-    TIFF_HEIGHT,
-    TIFF_BPP,
-    TIFF_COMPR,
-    TIFF_INVERT = 0x106,
-    TIFF_STRIP_OFFS = 0x111,
-    TIFF_ROWSPERSTRIP = 0x116,
-    TIFF_STRIP_SIZE,
-    TIFF_PLANAR = 0x11C,
-    TIFF_XPOS = 0x11E,
-    TIFF_YPOS = 0x11F,
-    TIFF_PREDICTOR = 0x13D,
-    TIFF_PAL = 0x140
-};
-
-enum TiffCompr{
-    TIFF_RAW = 1,
-    TIFF_CCITT_RLE,
-    TIFF_G3,
-    TIFF_G4,
-    TIFF_LZW,
-    TIFF_JPEG,
-    TIFF_NEWJPEG,
-    TIFF_ADOBE_DEFLATE,
-    TIFF_PACKBITS = 0x8005,
-    TIFF_DEFLATE = 0x80B2
-};
-
-enum TiffTypes{
-    TIFF_BYTE = 1,
-    TIFF_STRING,
-    TIFF_SHORT,
-    TIFF_LONG,
-    TIFF_LONGLONG
-};
-
-/** sizes of various TIFF field types */
-static const int type_sizes[6] = {
-    0, 1, 100, 2, 4, 8
-};
 
 typedef struct TiffContext {
     AVCodecContext *avctx;

libavcodec/tiff.h

+/*
+ * TIFF tables
+ * Copyright (c) 2006 Konstantin Shishkov
+ *
+ * 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
+ *
+ */
+
+#ifndef TIFF_H
+#define TIFF_H
+
+/* abridged list of TIFF tags */
+enum TiffTags{
+    TIFF_SUBFILE = 0xfe,
+    TIFF_WIDTH = 0x100,
+    TIFF_HEIGHT,
+    TIFF_BPP,
+    TIFF_COMPR,
+    TIFF_INVERT = 0x106,
+    TIFF_STRIP_OFFS = 0x111,
+    TIFF_SAMPLES_PER_PIXEL = 0x115,
+    TIFF_ROWSPERSTRIP = 0x116,
+    TIFF_STRIP_SIZE,
+    TIFF_XRES = 0x11A,
+    TIFF_YRES = 0x11B,
+    TIFF_PLANAR = 0x11C,
+    TIFF_XPOS = 0x11E,
+    TIFF_YPOS = 0x11F,
+    TIFF_RES_UNIT = 0x128,
+    TIFF_SOFTWARE_NAME = 0x131,
+    TIFF_PREDICTOR = 0x13D,
+    TIFF_PAL = 0x140,
+    TIFF_YCBCR_COEFFICIENTS = 0x211,
+    TIFF_YCBCR_SUBSAMPLING = 0x212,
+    TIFF_YCBCR_POSITIONING = 0x213,
+    TIFF_REFERENCE_BW = 0x214,
+};
+
+enum TiffCompr{
+    TIFF_RAW = 1,
+    TIFF_CCITT_RLE,
+    TIFF_G3,
+    TIFF_G4,
+    TIFF_LZW,
+    TIFF_JPEG,
+    TIFF_NEWJPEG,
+    TIFF_ADOBE_DEFLATE,
+    TIFF_PACKBITS = 0x8005,
+    TIFF_DEFLATE = 0x80B2
+};
+
+enum TiffTypes{
+    TIFF_BYTE = 1,
+    TIFF_STRING,
+    TIFF_SHORT,
+    TIFF_LONG,
+    TIFF_RATIONAL,
+};
+
+/** sizes of various TIFF field types (string size = 100)*/
+static const uint8_t type_sizes[6] = {
+    0, 1, 100, 2, 4, 8
+};
+
+#endif                          /* TIFF_H */

libavcodec/tiffenc.c

+/*
+ * TIFF image encoder
+ * Copyright (c) 2007 Bartlomiej Wolowiec
+ *
+ * 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
+ *
+ */
+
+#include "avcodec.h"
+#ifdef CONFIG_ZLIB
+#include <zlib.h>
+#endif
+#include "bytestream.h"
+#include "tiff.h"
+#include "rle.h"
+
+#define TIFF_MAX_ENTRY 32
+
+/** sizes of various TIFF field types (string size = 1)*/
+static const uint8_t type_sizes2[6] = {
+    0, 1, 1, 2, 4, 8
+};
+
+typedef struct TiffEncoderContext {
+    AVCodecContext *avctx;
+    AVFrame picture;
+
+    int width;                          ///< picture width
+    int height;                         ///< picture height
+    unsigned int bpp;                   ///< bits per pixel
+    int compr;                          ///< compression level
+    int bpp_tab_size;                   ///< bpp_tab size
+    int invert;                         ///< photometric interpretation
+    int strips;                         ///< number of strips
+    int rps;                            ///< row per strip
+    uint8_t entries[TIFF_MAX_ENTRY*12]; ///< entires in header
+    int num_entries;                    ///< number of entires
+    uint8_t **buf;                      ///< actual position in buffer
+    uint8_t *buf_start;                 ///< pointer to first byte in buffer
+    int buf_size;                       ///< buffer size
+} TiffEncoderContext;
+
+
+/**
+ * Check free space in buffer
+ * @param s Tiff context
+ * @param need Needed bytes
+ * @return 0 - ok, 1 - no free space
+ */
+inline static int check_size(TiffEncoderContext * s, uint64_t need)
+{
+    if (s->buf_size < *s->buf - s->buf_start + need) {
+        *s->buf = s->buf_start + s->buf_size + 1;
+        av_log(s->avctx, AV_LOG_ERROR, "Buffer is too small\n");
+        return 1;
+    }
+    return 0;
+}
+
+/**
+ * Put n values to buffer
+ *
+ * @param p Pointer to pointer to output buffer
+ * @param n Number of values
+ * @param val Pointer to values
+ * @param type Type of values
+ * @param flip =0 - normal copy, >0 - flip
+ */
+static void tnput(uint8_t ** p, int n, const uint8_t * val, enum TiffTypes type,
+                  int flip)
+{
+    int i;
+#ifdef WORDS_BIGENDIAN
+    flip ^= ((int[]) {0, 0, 0, 1, 3, 3})[type];
+#endif
+    for (i = 0; i < n * type_sizes2[type]; i++)
+        *(*p)++ = val[i ^ flip];
+}
+
+/**
+ * Add entry to directory in tiff header.
+ * @param s Tiff context
+ * @param tag Tag that identifies the entry
+ * @param type Entry type
+ * @param count The number of values
+ * @param ptr_val Pointer to values
+ */
+static void add_entry(TiffEncoderContext * s,
+                      enum TiffTags tag, enum TiffTypes type, int count,
+                      const void *ptr_val)
+{
+    uint8_t *entries_ptr = s->entries + 12 * s->num_entries;
+
+    assert(s->num_entries < TIFF_MAX_ENTRY);
+
+    bytestream_put_le16(&entries_ptr, tag);
+    bytestream_put_le16(&entries_ptr, type);
+    bytestream_put_le32(&entries_ptr, count);
+
+    if (type_sizes[type] * count <= 4) {
+        tnput(&entries_ptr, count, ptr_val, type, 0);
+    } else {
+        bytestream_put_le32(&entries_ptr, *s->buf - s->buf_start);
+        check_size(s, count * type_sizes2[type]);
+        tnput(s->buf, count, ptr_val, type, 0);
+    }
+
+    s->num_entries++;
+}
+
+/**
+ * Encode one strip in tiff file
+ *
+ * @param s Tiff context
+ * @param src Input buffer
+ * @param dst Output buffer
+ * @param n Size of input buffer
+ * @param compr Compression method
+ * @return Number of output bytes. If an output error is encountered, -1 returned
+ */
+static int encode_strip(TiffEncoderContext * s, const int8_t * src,
+                        uint8_t * dst, int n, int compr)
+{
+
+    switch (compr) {
+#ifdef CONFIG_ZLIB
+    case TIFF_DEFLATE:
+    case TIFF_ADOBE_DEFLATE:
+        {
+            unsigned long zlen = s->buf_size - (*s->buf - s->buf_start);
+            if (compress(dst, &zlen, src, n) != Z_OK) {
+                av_log(s->avctx, AV_LOG_ERROR, "Compressing failed\n");
+                return -1;
+            }
+            return zlen;
+        }
+#endif
+    case TIFF_RAW:
+        if (check_size(s, n))
+            return -1;
+        memcpy(dst, src, n);
+        return n;
+    case TIFF_PACKBITS:
+        return ff_rle_encode(dst, s->buf_size - (*s->buf - s->buf_start), src, 1, n, 2, 0xff, -1, 0);
+    default:
+        return -1;
+    }
+}
+
+static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
+                        int buf_size, void *data)
+{
+    TiffEncoderContext *s = avctx->priv_data;
+    AVFrame *pict = data;
+    AVFrame *const p = (AVFrame *) & s->picture;
+    int i;
+    int n;
+    uint8_t *ptr = buf;
+    uint8_t *offset;
+    uint32_t strips;
+    uint32_t *strip_sizes = NULL;
+    uint32_t *strip_offsets = NULL;
+    int bytes_per_row;
+    uint32_t res[2] = { 72, 1 };        // image resolution (72/1)
+    static const uint16_t bpp_tab[] = { 8, 8, 8, 8 };
+    int ret = -1;
+
+    s->buf_start = buf;
+    s->buf = &ptr;
+    s->buf_size = buf_size;
+
+    *p = *pict;
+    p->pict_type = FF_I_TYPE;
+    p->key_frame = 1;
+
+    s->compr = TIFF_PACKBITS;
+    if (avctx->compression_level == 0) {
+        s->compr = TIFF_RAW;
+#ifdef CONFIG_ZLIB
+    } else if ((avctx->compression_level > 2)) {
+        s->compr = TIFF_DEFLATE;
+#endif
+    }
+
+    s->width = avctx->width;
+    s->height = avctx->height;
+
+    switch (avctx->pix_fmt) {
+    case PIX_FMT_RGB24:
+        s->bpp = 24;
+        s->invert = 2;
+        break;
+    case PIX_FMT_GRAY8:
+        s->bpp = 8;
+        s->invert = 1;
+        break;
+    case PIX_FMT_PAL8:
+        s->bpp = 8;
+        s->invert = 3;
+        break;
+    case PIX_FMT_MONOBLACK:
+        s->bpp = 1;
+        s->invert = 1;
+        break;
+    case PIX_FMT_MONOWHITE:
+        s->bpp = 1;
+        s->invert = 0;
+        break;
+    default:
+        av_log(s->avctx, AV_LOG_ERROR,
+               "This colors format is not supported\n");
+        return -1;
+    }
+    s->bpp_tab_size = (s->bpp >> 3);
+
+    if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE)
+        //best choose for DEFLATE
+        s->rps = s->height;
+    else
+        s->rps = FFMAX(8192 / (((s->width * s->bpp) >> 3) + 1), 1);     // suggest size of strip
+
+    strips = (s->height - 1) / s->rps + 1;
+
+    if (check_size(s, 8))
+        goto fail;
+
+    // write header
+    bytestream_put_le16(&ptr, 0x4949);
+    bytestream_put_le16(&ptr, 42);
+
+    offset = ptr;
+    bytestream_put_le32(&ptr, 0);
+
+    strip_sizes = av_mallocz(sizeof(*strip_sizes) * strips);
+    strip_offsets = av_mallocz(sizeof(*strip_offsets) * strips);
+
+    bytes_per_row = (s->width * s->bpp + 7) >> 3;
+
+#ifdef CONFIG_ZLIB
+    if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
+        uint8_t *zbuf;
+        int zlen, zn;
+        int j;
+
+        zlen = bytes_per_row * s->rps;
+        zbuf = av_malloc(zlen);
+        strip_offsets[0] = ptr - buf;
+        zn = 0;
+        for (j = 0; j < s->rps; j++) {
+            memcpy(zbuf + j * bytes_per_row,
+                   p->data[0] + j * p->linesize[0], bytes_per_row);
+            zn += bytes_per_row;
+        }
+        n = encode_strip(s, zbuf, ptr, zn, s->compr);
+        av_free(zbuf);
+        if (n<0) {
+            av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
+            goto fail;
+        }
+        ptr += n;
+        strip_sizes[0] = ptr - buf - strip_offsets[0];
+    } else
+#endif
+    {
+        for (i = 0; i < s->height; i++) {
+            if (strip_sizes[i / s->rps] == 0) {
+                strip_offsets[i / s->rps] = ptr - buf;
+            }
+            if ((n = encode_strip(s, p->data[0] + i * p->linesize[0]
+                                  , ptr, bytes_per_row, s->compr)) < 0) {
+                av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
+                goto fail;
+            }
+            strip_sizes[i / s->rps] += n;
+            ptr += n;
+        }
+    }
+
+    s->num_entries = 0;
+
+    add_entry(s, TIFF_SUBFILE,           TIFF_LONG,     1,      (uint32_t[]) {0});
+    add_entry(s, TIFF_WIDTH,             TIFF_LONG,     1,      (uint32_t[]) {s->width});
+    add_entry(s, TIFF_HEIGHT,            TIFF_LONG,     1,      (uint32_t[]) {s->height});
+
+    if (s->bpp_tab_size)
+    add_entry(s, TIFF_BPP,               TIFF_SHORT,    s->bpp_tab_size, bpp_tab);
+
+    add_entry(s, TIFF_COMPR,             TIFF_SHORT,    1,      (uint16_t[]) {s->compr});
+    add_entry(s, TIFF_INVERT,            TIFF_SHORT,    1,      (uint16_t[]) {s->invert});
+    add_entry(s, TIFF_STRIP_OFFS,        TIFF_LONG,     strips, strip_offsets);
+
+    if (s->bpp_tab_size)
+    add_entry(s, TIFF_SAMPLES_PER_PIXEL, TIFF_SHORT,    1,      (uint16_t[]) {s->bpp_tab_size});
+
+    add_entry(s, TIFF_ROWSPERSTRIP,      TIFF_LONG,     1,      (uint32_t[]) {s->rps});
+    add_entry(s, TIFF_STRIP_SIZE,        TIFF_LONG,     strips, strip_sizes);
+    add_entry(s, TIFF_XRES,              TIFF_RATIONAL, 1,      res);
+    add_entry(s, TIFF_YRES,              TIFF_RATIONAL, 1,      res);
+    add_entry(s, TIFF_RES_UNIT,          TIFF_SHORT,    1,      (uint16_t[]) {2});
+    add_entry(s, TIFF_SOFTWARE_NAME,     TIFF_STRING,
+              strlen(LIBAVCODEC_IDENT) + 1, LIBAVCODEC_IDENT);
+
+    if (avctx->pix_fmt == PIX_FMT_PAL8) {
+        uint16_t pal[256 * 3];
+        for (i = 0; i < 256; i++) {
+            uint32_t rgb = *(uint32_t *) (p->data[1] + i * 4);
+            pal[i]       = ((rgb >> 16) & 0xff) * 257;
+            pal[i + 256] = ((rgb >> 8 ) & 0xff) * 257;
+            pal[i + 512] = ( rgb        & 0xff) * 257;
+        }
+        add_entry(s, TIFF_PAL, TIFF_SHORT, 256 * 3, pal);
+    }
+    bytestream_put_le32(&offset, ptr - buf);    // write offset to dir
+
+    if (check_size(s, 6 + s->num_entries * 12))
+        goto fail;
+    bytestream_put_le16(&ptr, s->num_entries);  // write tag count
+    bytestream_put_buffer(&ptr, s->entries, s->num_entries * 12);
+    bytestream_put_le32(&ptr, 0);
+
+    ret = ptr - buf;
+
+fail:
+    av_free(strip_sizes);
+    av_free(strip_offsets);
+    return ret;
+}
+
+AVCodec tiff_encoder = {
+    "tiff",
+    CODEC_TYPE_VIDEO,
+    CODEC_ID_TIFF,
+    sizeof(TiffEncoderContext),
+    NULL,
+    encode_frame,
+    NULL,
+    NULL,
+    0,
+    NULL,
+    .pix_fmts =
+        (enum PixelFormat[]) {PIX_FMT_RGB24, PIX_FMT_PAL8, PIX_FMT_GRAY8,
+                              PIX_FMT_MONOBLACK, PIX_FMT_MONOWHITE,
+                              -1}
+
+};