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-rw-r--r--Changelog1
-rw-r--r--MAINTAINERS1
-rw-r--r--doc/ffmpeg-doc.texi1
-rw-r--r--libavcodec/Makefile1
-rw-r--r--libavcodec/allcodecs.c3
-rw-r--r--libavcodec/avcodec.h6
-rw-r--r--libavcodec/vmnc.c326
-rw-r--r--libavformat/riff.c1
8 files changed, 338 insertions, 2 deletions
diff --git a/Changelog b/Changelog
index bfccb866ae..801cf2cddb 100644
--- a/Changelog
+++ b/Changelog
@@ -55,6 +55,7 @@ version <next>
- VC-1/WMV3/WMV9 video decoder
- MacIntel support
- AVISynth support
+- VMware video decoder
version 0.4.9-pre1:
diff --git a/MAINTAINERS b/MAINTAINERS
index 4523e41777..db28f29489 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -162,6 +162,7 @@ Codecs:
ulti* Kostya Shishkov
vc1* Kostya Shishkov
vcr1.c Michael Niedermayer
+ vmnc.c Kostya Shishkov
vp3* Mike Melanson
vqavideo.c Mike Melanson
wmv2.c Michael Niedermayer
diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi
index 6167fd83ac..2fd034d164 100644
--- a/doc/ffmpeg-doc.texi
+++ b/doc/ffmpeg-doc.texi
@@ -815,6 +815,7 @@ following image formats are supported:
@item Smacker Video @tab @tab X @tab Video encoding used in Smacker.
@item RTjpeg @tab @tab X @tab Video encoding used in NuppelVideo files.
@item KMVC @tab @tab X @tab Codec used in Worms games.
+@item VMware Video @tab @tab X @tab Codec used in videos captured by VMware.
@end multitable
@code{X} means that encoding (resp. decoding) is supported.
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 141cec61f8..2c8bb59aaa 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -120,6 +120,7 @@ OBJS-$(CONFIG_VCR1_DECODER) += vcr1.o
OBJS-$(CONFIG_VCR1_ENCODER) += vcr1.o
OBJS-$(CONFIG_VMDAUDIO_DECODER) += vmdav.o
OBJS-$(CONFIG_VMDVIDEO_DECODER) += vmdav.o
+OBJS-$(CONFIG_VMNC_DECODER) += vmnc.o
OBJS-$(CONFIG_VORBIS_DECODER) += vorbis.o
OBJS-$(CONFIG_VP3_DECODER) += vp3.o
OBJS-$(CONFIG_VQA_DECODER) += vqavideo.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 1f0e101fe0..98fa296780 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -528,6 +528,9 @@ void avcodec_register_all(void)
#ifdef CONFIG_FLASHSV_DECODER
register_avcodec(&flashsv_decoder);
#endif //CONFIG_FLASHSV_DECODER
+#ifdef CONFIG_VMNC_DECODER
+ register_avcodec(&vmnc_decoder);
+#endif //CONFIG_VMNC_DECODER
#endif /* CONFIG_DECODERS */
#if defined(CONFIG_AMR_NB) || defined(CONFIG_AMR_NB_FIXED)
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 195c258b04..9c1acbf4f3 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -17,8 +17,8 @@ extern "C" {
#define AV_STRINGIFY(s) AV_TOSTRING(s)
#define AV_TOSTRING(s) #s
-#define LIBAVCODEC_VERSION_INT ((51<<16)+(12<<8)+0)
-#define LIBAVCODEC_VERSION 51.12.0
+#define LIBAVCODEC_VERSION_INT ((51<<16)+(13<<8)+0)
+#define LIBAVCODEC_VERSION 51.13.0
#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
@@ -120,6 +120,7 @@ enum CodecID {
CODEC_ID_FLASHSV,
CODEC_ID_CAVS,
CODEC_ID_JPEG2000,
+ CODEC_ID_VMNC,
/* various pcm "codecs" */
CODEC_ID_PCM_S16LE= 0x10000,
@@ -2259,6 +2260,7 @@ extern AVCodec smackaud_decoder;
extern AVCodec kmvc_decoder;
extern AVCodec flashsv_decoder;
extern AVCodec cavs_decoder;
+extern AVCodec vmnc_decoder;
/* pcm codecs */
#define PCM_CODEC(id, name) \
diff --git a/libavcodec/vmnc.c b/libavcodec/vmnc.c
new file mode 100644
index 0000000000..8771891706
--- /dev/null
+++ b/libavcodec/vmnc.c
@@ -0,0 +1,326 @@
+/*
+ * VMware Screen Codec (VMnc) decoder
+ * Copyright (c) 2006 Konstantin Shishkov
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+/**
+ * @file vmnc.c
+ * VMware Screen Codec (VMnc) decoder
+ * As Alex Beregszaszi discovered, this is effectively RFB data dump
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "common.h"
+#include "avcodec.h"
+
+#define MAGIC_WMVi 0x574D5669
+
+enum HexTile_Flags {
+ HT_RAW = 1, // tile is raw
+ HT_BKG = 2, // background color is present
+ HT_FG = 4, // foreground color is present
+ HT_SUB = 8, // subrects are present
+ HT_CLR = 16 // each subrect has own color
+};
+
+/*
+ * Decoder context
+ */
+typedef struct VmncContext {
+ AVCodecContext *avctx;
+ AVFrame pic;
+
+ int bpp;
+ int bpp2;
+ int bigendian;
+ uint8_t pal[768];
+ int width, height;
+} VmncContext;
+
+/* read pixel value from stream */
+static always_inline int vmnc_get_pixel(uint8_t* buf, int bpp, int be) {
+ switch(bpp * 2 + be) {
+ case 2:
+ case 3: return *buf;
+ case 4: return LE_16(buf);
+ case 5: return BE_16(buf);
+ case 8: return LE_32(buf);
+ case 9: return BE_32(buf);
+ default: return 0;
+ }
+}
+
+/* fill rectangle with given colour */
+static always_inline void paint_rect(uint8_t *dst, int dx, int dy, int w, int h, int color, int bpp, int stride)
+{
+ int i, j;
+ dst += dx * bpp + dy * stride;
+ if(bpp == 1){
+ for(j = 0; j < h; j++) {
+ memset(dst, color, w);
+ dst += stride;
+ }
+ }else if(bpp == 2){
+ uint16_t* dst2;
+ for(j = 0; j < h; j++) {
+ dst2 = (uint16_t*)dst;
+ for(i = 0; i < w; i++) {
+ *dst2++ = color;
+ }
+ dst += stride;
+ }
+ }else if(bpp == 4){
+ uint32_t* dst2;
+ for(j = 0; j < h; j++) {
+ dst2 = (uint32_t*)dst;
+ for(i = 0; i < w; i++) {
+ dst2[i] = color;
+ }
+ dst += stride;
+ }
+ }
+}
+
+static always_inline void paint_raw(uint8_t *dst, int w, int h, uint8_t* src, int bpp, int be, int stride)
+{
+ int i, j, p;
+ for(j = 0; j < h; j++) {
+ for(i = 0; i < w; i++) {
+ p = vmnc_get_pixel(src, bpp, be);
+ src += bpp;
+ memcpy(dst + i*bpp, &p, bpp);
+ }
+ dst += stride;
+ }
+}
+
+static int decode_hextile(VmncContext *c, uint8_t* dst, uint8_t* src, int w, int h, int stride)
+{
+ int i, j, k;
+ int bg = 0, fg = 0, rects, color, flags, xy, wh;
+ const int bpp = c->bpp2;
+ uint8_t *dst2;
+ int bw = 16, bh = 16;
+ uint8_t *ssrc=src;
+
+ for(j = 0; j < h; j += 16) {
+ dst2 = dst;
+ bw = 16;
+ if(j + 16 > h) bh = h - j;
+ for(i = 0; i < w; i += 16, dst2 += 16 * bpp) {
+ if(i + 16 > w) bw = w - i;
+ flags = *src++;
+ if(flags & HT_RAW) {
+ paint_raw(dst2, bw, bh, src, bpp, c->bigendian, stride);
+ } else {
+ if(flags & HT_BKG) {
+ bg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
+ }
+ if(flags & HT_FG) {
+ fg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
+ }
+ rects = 0;
+ if(flags & HT_SUB)
+ rects = *src++;
+ color = (flags & HT_CLR);
+
+ paint_rect(dst2, 0, 0, bw, bh, bg, bpp, stride);
+
+ for(k = 0; k < rects; k++) {
+ if(color) {
+ fg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
+ }
+ xy = *src++;
+ wh = *src++;
+ paint_rect(dst2, xy >> 4, xy & 0xF, (wh>>4)+1, (wh & 0xF)+1, fg, bpp, stride);
+ }
+ }
+ }
+ dst += stride * 16;
+ }
+ return src - ssrc;
+}
+
+static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
+{
+ VmncContext * const c = (VmncContext *)avctx->priv_data;
+ uint8_t *outptr;
+ uint8_t *src = buf;
+ int t, dx, dy, w, h, enc, chunks, res;
+
+ c->pic.reference = 1;
+ c->pic.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
+ if(avctx->reget_buffer(avctx, &c->pic) < 0){
+ av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
+ return -1;
+ }
+
+ t = BE_32(src);
+ src += 4;
+
+ chunks = t & 0xFF;
+ if(chunks > 8) {
+ av_log(avctx, AV_LOG_ERROR, "Frame decoding is not possible. Please report sample to developers.\n");
+ return -1;
+ }
+ if(chunks == 8) {
+ int w, h, depth;
+ c->pic.key_frame = 1;
+ c->pic.pict_type = FF_I_TYPE;
+
+ /* parse ServerInitialization struct */
+ src += 4;
+ w = BE_16(src); src += 2;
+ h = BE_16(src); src += 2;
+ t = BE_32(src); src += 4;
+ if(t != MAGIC_WMVi) {
+ av_log(avctx, AV_LOG_INFO, "Invalid header: magic not found\n");
+ return -1;
+ }
+ depth = *src++;
+ if(depth != c->bpp) {
+ av_log(avctx, AV_LOG_INFO, "Depth mismatch. Container %i bpp, Frame data: %i bpp\n", c->bpp, depth);
+ }
+ src++;
+ c->bigendian = *src++;
+ if(c->bigendian & (~1)) {
+ av_log(avctx, AV_LOG_INFO, "Invalid header: bigendian flag = %i\n", c->bigendian);
+ return -1;
+ }
+ //skip pixel format data
+ src += 13;
+ chunks = 1; // there should be one chunk with the whole frame, rest could be ignored
+ } else {
+ c->pic.key_frame = 0;
+ c->pic.pict_type = FF_P_TYPE;
+ }
+ while(chunks--) {
+ // decode FramebufferUpdate struct
+ dx = BE_16(src); src += 2;
+ dy = BE_16(src); src += 2;
+ w = BE_16(src); src += 2;
+ h = BE_16(src); src += 2;
+ if((dx + w > c->width) || (dy + h > c->height)) {
+ av_log(avctx, AV_LOG_ERROR, "Incorrect frame size: %ix%i+%ix%i of %ix%i\n", w, h, dx, dy, c->width, c->height);
+ return -1;
+ }
+ enc = BE_32(src); src += 4;
+ if(enc != 0x00000005) {
+ av_log(avctx, AV_LOG_ERROR, "Only hextile decoding is supported for now\n");
+ switch(enc) {
+ case 0:
+ av_log(avctx, AV_LOG_INFO, "And this is raw encoding\n");
+ break;
+ case 1:
+ av_log(avctx, AV_LOG_INFO, "And this is CopyRect encoding\n");
+ break;
+ case 2:
+ av_log(avctx, AV_LOG_INFO, "And this is RRE encoding\n");
+ break;
+ case 3:
+ av_log(avctx, AV_LOG_INFO, "And this is CoRRE encoding\n");
+ break;
+ default:
+ av_log(avctx, AV_LOG_INFO, "And this is unknown encoding (%i)\n", enc);
+ }
+ return -1;
+ }
+ outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
+ res = decode_hextile(c, outptr, src, w, h, c->pic.linesize[0]);
+ if(res < 0)
+ return -1;
+ src += res;
+ }
+ *data_size = sizeof(AVFrame);
+ *(AVFrame*)data = c->pic;
+
+ /* always report that the buffer was completely consumed */
+ return buf_size;
+}
+
+
+
+/*
+ *
+ * Init VMnc decoder
+ *
+ */
+static int decode_init(AVCodecContext *avctx)
+{
+ VmncContext * const c = (VmncContext *)avctx->priv_data;
+
+ c->avctx = avctx;
+ avctx->has_b_frames = 0;
+
+ c->pic.data[0] = NULL;
+ c->width = avctx->width;
+ c->height = avctx->height;
+
+ if (avcodec_check_dimensions(avctx, avctx->height, avctx->width) < 0) {
+ return 1;
+ }
+ c->bpp = avctx->bits_per_sample;
+ c->bpp2 = c->bpp/8;
+
+ switch(c->bpp){
+ case 8:
+ avctx->pix_fmt = PIX_FMT_PAL8;
+ break;
+ case 16:
+ avctx->pix_fmt = PIX_FMT_RGB555;
+ break;
+ case 32:
+ avctx->pix_fmt = PIX_FMT_RGB32;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "Unsupported bitdepth %i\n", c->bpp);
+ }
+
+ return 0;
+}
+
+
+
+/*
+ *
+ * Uninit VMnc decoder
+ *
+ */
+static int decode_end(AVCodecContext *avctx)
+{
+ VmncContext * const c = (VmncContext *)avctx->priv_data;
+
+ if (c->pic.data[0])
+ avctx->release_buffer(avctx, &c->pic);
+
+ return 0;
+}
+
+AVCodec vmnc_decoder = {
+ "VMware video",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_VMNC,
+ sizeof(VmncContext),
+ decode_init,
+ NULL,
+ decode_end,
+ decode_frame
+};
+
diff --git a/libavformat/riff.c b/libavformat/riff.c
index 128323ad45..c89da5c00b 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -155,6 +155,7 @@ const CodecTag codec_bmp_tags[] = {
{ CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
{ CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
{ CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
+ { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
{ CODEC_ID_RAWVIDEO, 0 },
{ CODEC_ID_NONE, 0 },
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-28 01:15:04 +0000