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-rw-r--r--libavcodec/tiffenc.c237
1 files changed, 137 insertions, 100 deletions
diff --git a/libavcodec/tiffenc.c b/libavcodec/tiffenc.c
index 8162c407d6..61294b9207 100644
--- a/libavcodec/tiffenc.c
+++ b/libavcodec/tiffenc.c
@@ -2,20 +2,20 @@
* TIFF image encoder
* Copyright (c) 2007 Bartlomiej Wolowiec
*
- * 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
*/
@@ -25,6 +25,7 @@
* @author Bartlomiej Wolowiec
*/
+#include "libavutil/imgutils.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
@@ -35,6 +36,7 @@
#include <zlib.h>
#endif
#include "bytestream.h"
+#include "internal.h"
#include "tiff.h"
#include "rle.h"
#include "lzw.h"
@@ -43,8 +45,8 @@
#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
+static const uint8_t type_sizes2[14] = {
+ 0, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8, 4
};
typedef struct TiffEncoderContext {
@@ -59,6 +61,12 @@ typedef struct TiffEncoderContext {
int bpp_tab_size; ///< bpp_tab size
int photometric_interpretation; ///< photometric interpretation
int strips; ///< number of strips
+ uint32_t *strip_sizes;
+ unsigned int strip_sizes_size;
+ uint32_t *strip_offsets;
+ unsigned int strip_offsets_size;
+ uint8_t *yuv_line;
+ unsigned int yuv_line_size;
int rps; ///< row per strip
uint8_t entries[TIFF_MAX_ENTRY*12]; ///< entires in header
int num_entries; ///< number of entires
@@ -67,11 +75,13 @@ typedef struct TiffEncoderContext {
int buf_size; ///< buffer size
uint16_t subsampling[2]; ///< YUV subsampling factors
struct LZWEncodeState *lzws; ///< LZW Encode state
+ uint32_t dpi; ///< image resolution in DPI
} TiffEncoderContext;
/**
- * Check free space in buffer
+ * Check free space in buffer.
+ *
* @param s Tiff context
* @param need Needed bytes
* @return 0 - ok, 1 - no free space
@@ -87,13 +97,13 @@ static inline int check_size(TiffEncoderContext * s, uint64_t need)
}
/**
- * Put n values to buffer
+ * 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
+ * @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)
@@ -108,11 +118,12 @@ static void tnput(uint8_t ** p, int n, const uint8_t * val, enum TiffTypes type,
/**
* 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
+ * @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,
@@ -120,17 +131,17 @@ static void add_entry(TiffEncoderContext * s,
{
uint8_t *entries_ptr = s->entries + 12 * s->num_entries;
- assert(s->num_entries < TIFF_MAX_ENTRY);
+ av_assert0(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) {
+ if (type_sizes[type] * (int64_t)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]);
+ check_size(s, count * (int64_t)type_sizes2[type]);
tnput(s->buf, count, ptr_val, type, 0);
}
@@ -145,14 +156,14 @@ static void add_entry1(TiffEncoderContext * s,
}
/**
- * Encode one strip in tiff file
+ * 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
+ * @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 is returned
*/
static int encode_strip(TiffEncoderContext * s, const int8_t * src,
uint8_t * dst, int n, int compr)
@@ -192,90 +203,99 @@ static void pack_yuv(TiffEncoderContext * s, uint8_t * dst, int lnum)
int w = (s->width - 1) / s->subsampling[0] + 1;
uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
- for (i = 0; i < w; i++){
- for (j = 0; j < s->subsampling[1]; j++)
- for (k = 0; k < s->subsampling[0]; k++)
- *dst++ = p->data[0][(lnum + j) * p->linesize[0] +
- i * s->subsampling[0] + k];
- *dst++ = *pu++;
- *dst++ = *pv++;
+ if(s->width % s->subsampling[0] || s->height % s->subsampling[1]){
+ for (i = 0; i < w; i++){
+ for (j = 0; j < s->subsampling[1]; j++)
+ for (k = 0; k < s->subsampling[0]; k++)
+ *dst++ = p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
+ FFMIN(i * s->subsampling[0] + k, s->width-1)];
+ *dst++ = *pu++;
+ *dst++ = *pv++;
+ }
+ }else{
+ for (i = 0; i < w; i++){
+ for (j = 0; j < s->subsampling[1]; j++)
+ for (k = 0; k < s->subsampling[0]; k++)
+ *dst++ = p->data[0][(lnum + j) * p->linesize[0] +
+ i * s->subsampling[0] + k];
+ *dst++ = *pu++;
+ *dst++ = *pv++;
+ }
}
}
+static av_cold int encode_init(AVCodecContext *avctx)
+{
+ TiffEncoderContext *s = avctx->priv_data;
+
+ avctx->coded_frame= &s->picture;
+ avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
+ avctx->coded_frame->key_frame = 1;
+ s->avctx = avctx;
+
+ return 0;
+}
+
static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
const AVFrame *pict, int *got_packet)
{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
TiffEncoderContext *s = avctx->priv_data;
AVFrame *const p = &s->picture;
int i;
uint8_t *ptr;
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)
- uint16_t bpp_tab[] = { 8, 8, 8, 8 };
- int ret;
- int is_yuv = 0;
- uint8_t *yuv_line = NULL;
+ uint32_t res[2] = { s->dpi, 1 }; // image resolution (72/1)
+ uint16_t bpp_tab[4];
+ int ret = -1;
+ int is_yuv = 0, alpha = 0;
int shift_h, shift_v;
- const AVPixFmtDescriptor* pfd;
-
- s->avctx = avctx;
*p = *pict;
- p->pict_type = AV_PICTURE_TYPE_I;
- p->key_frame = 1;
- avctx->coded_frame= &s->picture;
s->width = avctx->width;
s->height = avctx->height;
s->subsampling[0] = 1;
s->subsampling[1] = 1;
+ avctx->bits_per_coded_sample =
+ s->bpp = av_get_bits_per_pixel(desc);
+ s->bpp_tab_size = desc->nb_components;
+
switch (avctx->pix_fmt) {
+ case AV_PIX_FMT_RGBA64LE:
+ case AV_PIX_FMT_RGBA:
+ alpha = 1;
case AV_PIX_FMT_RGB48LE:
- case AV_PIX_FMT_GRAY16LE:
case AV_PIX_FMT_RGB24:
- case AV_PIX_FMT_GRAY8:
- case AV_PIX_FMT_PAL8:
- pfd = av_pix_fmt_desc_get(avctx->pix_fmt);
- s->bpp = av_get_bits_per_pixel(pfd);
- if (pfd->flags & PIX_FMT_PAL) {
- s->photometric_interpretation = 3;
- } else if (pfd->flags & PIX_FMT_RGB) {
- s->photometric_interpretation = 2;
- } else {
- s->photometric_interpretation = 1;
- }
- s->bpp_tab_size = pfd->nb_components;
- for (i = 0; i < s->bpp_tab_size; i++) {
- bpp_tab[i] = s->bpp / s->bpp_tab_size;
- }
+ s->photometric_interpretation = 2;
break;
+ case AV_PIX_FMT_GRAY8:
+ avctx->bits_per_coded_sample = 0x28;
+ case AV_PIX_FMT_GRAY8A:
+ alpha = avctx->pix_fmt == AV_PIX_FMT_GRAY8A;
+ case AV_PIX_FMT_GRAY16LE:
case AV_PIX_FMT_MONOBLACK:
- s->bpp = 1;
s->photometric_interpretation = 1;
- s->bpp_tab_size = 0;
+ break;
+ case AV_PIX_FMT_PAL8:
+ s->photometric_interpretation = 3;
break;
case AV_PIX_FMT_MONOWHITE:
- s->bpp = 1;
s->photometric_interpretation = 0;
- s->bpp_tab_size = 0;
break;
case AV_PIX_FMT_YUV420P:
case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV440P:
case AV_PIX_FMT_YUV444P:
case AV_PIX_FMT_YUV410P:
case AV_PIX_FMT_YUV411P:
s->photometric_interpretation = 6;
- av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
- &shift_h, &shift_v);
- s->bpp = 8 + (16 >> (shift_h + shift_v));
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &shift_h, &shift_v);
s->subsampling[0] = 1 << shift_h;
s->subsampling[1] = 1 << shift_v;
- s->bpp_tab_size = 3;
is_yuv = 1;
break;
default:
@@ -284,6 +304,9 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
return -1;
}
+ for (i = 0; i < s->bpp_tab_size; i++)
+ bpp_tab[i] = desc->comp[i].depth_minus1 + 1;
+
if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE || s->compr == TIFF_LZW)
//best choose for DEFLATE
s->rps = s->height;
@@ -293,12 +316,9 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
strips = (s->height - 1) / s->rps + 1;
- if (!pkt->data &&
- (ret = av_new_packet(pkt, avctx->width * avctx->height * s->bpp * 2 +
- avctx->height * 4 + FF_MIN_BUFFER_SIZE)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+ if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * s->bpp * 2 +
+ avctx->height * 4 + FF_MIN_BUFFER_SIZE)) < 0)
return ret;
- }
ptr = pkt->data;
s->buf_start = pkt->data;
s->buf = &ptr;
@@ -314,9 +334,10 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
offset = ptr;
bytestream_put_le32(&ptr, 0);
- strip_sizes = av_mallocz(sizeof(*strip_sizes) * strips);
- strip_offsets = av_mallocz(sizeof(*strip_offsets) * strips);
- if (!strip_sizes || !strip_offsets) {
+ av_fast_padded_mallocz(&s->strip_sizes, &s->strip_sizes_size, sizeof(s->strip_sizes[0]) * strips);
+ av_fast_padded_mallocz(&s->strip_offsets, &s->strip_offsets_size, sizeof(s->strip_offsets[0]) * strips);
+
+ if (!s->strip_sizes || !s->strip_offsets) {
ret = AVERROR(ENOMEM);
goto fail;
}
@@ -324,8 +345,8 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
bytes_per_row = (((s->width - 1)/s->subsampling[0] + 1) * s->bpp
* s->subsampling[0] * s->subsampling[1] + 7) >> 3;
if (is_yuv){
- yuv_line = av_malloc(bytes_per_row);
- if (yuv_line == NULL){
+ av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
+ if (s->yuv_line == NULL){
av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
ret = AVERROR(ENOMEM);
goto fail;
@@ -344,12 +365,12 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
ret = AVERROR(ENOMEM);
goto fail;
}
- strip_offsets[0] = ptr - pkt->data;
+ s->strip_offsets[0] = ptr - pkt->data;
zn = 0;
for (j = 0; j < s->rps; j++) {
if (is_yuv){
- pack_yuv(s, yuv_line, j);
- memcpy(zbuf + zn, yuv_line, bytes_per_row);
+ pack_yuv(s, s->yuv_line, j);
+ memcpy(zbuf + zn, s->yuv_line, bytes_per_row);
j += s->subsampling[1] - 1;
}
else
@@ -364,7 +385,7 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
goto fail;
}
ptr += ret;
- strip_sizes[0] = ptr - pkt->data - strip_offsets[0];
+ s->strip_sizes[0] = ptr - pkt->data - s->strip_offsets[0];
} else
#endif
{
@@ -376,16 +397,16 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
}
}
for (i = 0; i < s->height; i++) {
- if (strip_sizes[i / s->rps] == 0) {
+ if (s->strip_sizes[i / s->rps] == 0) {
if(s->compr == TIFF_LZW){
ff_lzw_encode_init(s->lzws, ptr, s->buf_size - (*s->buf - s->buf_start),
12, FF_LZW_TIFF, put_bits);
}
- strip_offsets[i / s->rps] = ptr - pkt->data;
+ s->strip_offsets[i / s->rps] = ptr - pkt->data;
}
if (is_yuv){
- pack_yuv(s, yuv_line, i);
- ret = encode_strip(s, yuv_line, ptr, bytes_per_row, s->compr);
+ pack_yuv(s, s->yuv_line, i);
+ ret = encode_strip(s, s->yuv_line, ptr, bytes_per_row, s->compr);
i += s->subsampling[1] - 1;
}
else
@@ -395,11 +416,11 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
goto fail;
}
- strip_sizes[i / s->rps] += ret;
+ s->strip_sizes[i / s->rps] += ret;
ptr += ret;
if(s->compr == TIFF_LZW && (i==s->height-1 || i%s->rps == s->rps-1)){
ret = ff_lzw_encode_flush(s->lzws, flush_put_bits);
- strip_sizes[(i / s->rps )] += ret ;
+ s->strip_sizes[(i / s->rps )] += ret ;
ptr += ret;
}
}
@@ -418,13 +439,13 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
add_entry1(s,TIFF_COMPR, TIFF_SHORT, s->compr);
add_entry1(s,TIFF_INVERT, TIFF_SHORT, s->photometric_interpretation);
- add_entry(s, TIFF_STRIP_OFFS, TIFF_LONG, strips, strip_offsets);
+ add_entry(s, TIFF_STRIP_OFFS, TIFF_LONG, strips, s->strip_offsets);
if (s->bpp_tab_size)
add_entry1(s,TIFF_SAMPLES_PER_PIXEL, TIFF_SHORT, s->bpp_tab_size);
add_entry1(s,TIFF_ROWSPERSTRIP, TIFF_LONG, s->rps);
- add_entry(s, TIFF_STRIP_SIZE, TIFF_LONG, strips, strip_sizes);
+ add_entry(s, TIFF_STRIP_SIZE, TIFF_LONG, strips, s->strip_sizes);
add_entry(s, TIFF_XRES, TIFF_RATIONAL, 1, res);
add_entry(s, TIFF_YRES, TIFF_RATIONAL, 1, res);
add_entry1(s,TIFF_RES_UNIT, TIFF_SHORT, 2);
@@ -443,10 +464,14 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
}
add_entry(s, TIFF_PAL, TIFF_SHORT, 256 * 3, pal);
}
+ if (alpha)
+ add_entry1(s,TIFF_EXTRASAMPLES, TIFF_SHORT, 2);
if (is_yuv){
/** according to CCIR Recommendation 601.1 */
uint32_t refbw[12] = {15, 1, 235, 1, 128, 1, 240, 1, 128, 1, 240, 1};
add_entry(s, TIFF_YCBCR_SUBSAMPLING, TIFF_SHORT, 2, s->subsampling);
+ if (avctx->chroma_sample_location == AVCHROMA_LOC_TOPLEFT)
+ add_entry1(s, TIFF_YCBCR_POSITIONING, TIFF_SHORT, 2);
add_entry(s, TIFF_REFERENCE_BW, TIFF_RATIONAL, 6, refbw);
}
bytestream_put_le32(&offset, ptr - pkt->data); // write offset to dir
@@ -464,15 +489,24 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
*got_packet = 1;
fail:
- av_free(strip_sizes);
- av_free(strip_offsets);
- av_free(yuv_line);
- return ret;
+ return ret < 0 ? ret : 0;
+}
+
+static av_cold int encode_close(AVCodecContext *avctx)
+{
+ TiffEncoderContext *s = avctx->priv_data;
+
+ av_freep(&s->strip_sizes);
+ av_freep(&s->strip_offsets);
+ av_freep(&s->yuv_line);
+
+ return 0;
}
#define OFFSET(x) offsetof(TiffEncoderContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
+ {"dpi", "set the image resolution (in dpi)", OFFSET(dpi), AV_OPT_TYPE_INT, {.i64 = 72}, 1, 0x10000, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_ENCODING_PARAM},
{ "compression_algo", NULL, OFFSET(compr), AV_OPT_TYPE_INT, {.i64 = TIFF_PACKBITS}, TIFF_RAW, TIFF_DEFLATE, VE, "compression_algo" },
{ "packbits", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = TIFF_PACKBITS}, 0, 0, VE, "compression_algo" },
{ "raw", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = TIFF_RAW}, 0, 0, VE, "compression_algo" },
@@ -495,13 +529,16 @@ AVCodec ff_tiff_encoder = {
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_TIFF,
.priv_data_size = sizeof(TiffEncoderContext),
+ .init = encode_init,
.encode2 = encode_frame,
+ .close = encode_close,
.pix_fmts = (const enum AVPixelFormat[]) {
- AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48LE, AV_PIX_FMT_PAL8,
- AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16LE,
+ AV_PIX_FMT_RGB24, AV_PIX_FMT_PAL8, AV_PIX_FMT_GRAY8,
+ AV_PIX_FMT_GRAY8A, AV_PIX_FMT_GRAY16LE,
AV_PIX_FMT_MONOBLACK, AV_PIX_FMT_MONOWHITE,
- AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
- AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
+ AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
+ AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_RGB48LE,
+ AV_PIX_FMT_RGBA, AV_PIX_FMT_RGBA64LE,
AV_PIX_FMT_NONE
},
.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
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