lavc/tiff: add support for LZMA compression

Derived from deflate code.
Requires liblzma.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
pull/84/merge
James Almer 10 years ago committed by Michael Niedermayer
parent 2e3c1699ae
commit b140b51ebb
  1. 1
      Changelog
  2. 5
      configure
  3. 85
      libavcodec/tiff.c

@ -7,6 +7,7 @@ version <next>:
- large optimizations in dctdnoiz to make it usable
- request icecast metadata by default
- support for using metadata in stream specifiers in fftools
- LZMA compression support in TIFF decoder
version 2.3:

5
configure vendored

@ -254,6 +254,7 @@ External library support:
native MPEG-4/Xvid encoder exists [no]
--enable-libzmq enable message passing via libzmq [no]
--enable-libzvbi enable teletext support via libzvbi [no]
--disable-lzma disable lzma [autodetect]
--enable-decklink enable Blackmagick DeckLink output [no]
--enable-openal enable OpenAL 1.1 capture support [no]
--enable-opencl enable OpenCL code
@ -1381,6 +1382,7 @@ EXTERNAL_LIBRARY_LIST="
libxvid
libzmq
libzvbi
lzma
openal
opencl
opengl
@ -2188,7 +2190,7 @@ svq3_decoder_suggest="zlib"
tak_decoder_select="audiodsp"
theora_decoder_select="vp3_decoder"
thp_decoder_select="mjpeg_decoder"
tiff_decoder_suggest="zlib"
tiff_decoder_suggest="zlib lzma"
tiff_encoder_suggest="zlib"
truehd_decoder_select="mlp_parser"
truemotion2_decoder_select="bswapdsp"
@ -4759,6 +4761,7 @@ fi
disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
disabled lzma || check_lib2 lzma.h lzma_version_number -llzma || disable lzma
check_lib math.h sin -lm && LIBM="-lm"
disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

@ -28,6 +28,9 @@
#if CONFIG_ZLIB
#include <zlib.h>
#endif
#if CONFIG_LZMA
#include <lzma.h>
#endif
#include "libavutil/attributes.h"
#include "libavutil/avstring.h"
@ -378,6 +381,70 @@ static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride
}
#endif
#if CONFIG_LZMA
static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
int size)
{
lzma_stream stream = LZMA_STREAM_INIT;
lzma_ret ret;
stream.next_in = (uint8_t *)src;
stream.avail_in = size;
stream.next_out = dst;
stream.avail_out = *len;
ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
if (ret != LZMA_OK) {
av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
return ret;
}
ret = lzma_code(&stream, LZMA_RUN);
lzma_end(&stream);
*len = stream.total_out;
return ret == LZMA_STREAM_END ? LZMA_OK : ret;
}
static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
const uint8_t *src, int size, int width, int lines,
int strip_start, int is_yuv)
{
uint64_t outlen = width * lines;
int ret, line;
uint8_t *buf = av_malloc(outlen);
if (!buf)
return AVERROR(ENOMEM);
if (s->fill_order) {
if ((ret = deinvert_buffer(s, src, size)) < 0) {
av_free(buf);
return ret;
}
src = s->deinvert_buf;
}
ret = tiff_uncompress_lzma(buf, &outlen, src, size);
if (ret != LZMA_OK) {
av_log(s->avctx, AV_LOG_ERROR,
"Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
(uint64_t)width * lines, ret);
av_free(buf);
return AVERROR_UNKNOWN;
}
src = buf;
for (line = 0; line < lines; line++) {
if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
} else {
memcpy(dst, src, width);
}
if (is_yuv) {
unpack_yuv(s, p, dst, strip_start + line);
line += s->subsampling[1] - 1;
}
dst += stride;
src += width;
}
av_free(buf);
return 0;
}
#endif
static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
const uint8_t *src, int size, int width, int lines)
@ -455,6 +522,16 @@ static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int strid
"zlib support not enabled, "
"deflate compression not supported\n");
return AVERROR(ENOSYS);
#endif
}
if (s->compr == TIFF_LZMA) {
#if CONFIG_LZMA
return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
strip_start, is_yuv);
#else
av_log(s->avctx, AV_LOG_ERROR,
"LZMA support not enabled\n");
return AVERROR(ENOSYS);
#endif
}
if (s->compr == TIFF_LZW) {
@ -783,8 +860,12 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
avpriv_report_missing_feature(s->avctx, "JPEG compression");
return AVERROR_PATCHWELCOME;
case TIFF_LZMA:
avpriv_report_missing_feature(s->avctx, "LZMA compression");
return AVERROR_PATCHWELCOME;
#if CONFIG_LZMA
break;
#else
av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
return AVERROR(ENOSYS);
#endif
default:
av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
s->compr);

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