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-rw-r--r--Changelog5
-rw-r--r--doc/ffmpeg-doc.texi10
-rw-r--r--libavcodec/Makefile2
-rw-r--r--libavcodec/allcodecs.c1
-rw-r--r--libavcodec/avcodec.h2
-rw-r--r--libavcodec/flicvideo.c461
-rw-r--r--libavformat/Makefile2
-rw-r--r--libavformat/allformats.c1
-rw-r--r--libavformat/avformat.h3
-rw-r--r--libavformat/flic.c228
10 files changed, 711 insertions, 4 deletions
diff --git a/Changelog b/Changelog
index 112d537257..f639e42d5e 100644
--- a/Changelog
+++ b/Changelog
@@ -2,11 +2,14 @@ version <next>:
- DV encoder, DV muxer
- Microsoft RLE video decoder
- Microsoft Video-1 decoder
+- Apple Graphics (SMC) decoder
- Apple Video (RPZA) decoder
- Cinepak decoder
- Sega FILM (CPK) file demuxer
-- Westwood multimedia support (VQA/AUD file demuxer, audio decoder)
+- Westwood multimedia support (VQA & AUD files)
- Id Quake II CIN playback support
+- 8BPS video decoder
+- FLIC playback support
version 0.4.8:
diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi
index 2532709d89..ee19541099 100644
--- a/doc/ffmpeg-doc.texi
+++ b/doc/ffmpeg-doc.texi
@@ -613,6 +613,7 @@ library:
@item Raw MJPEG @tab X @tab X
@item Raw MPEG video @tab X @tab X
@item Raw PCM8/16 bits, mulaw/Alaw@tab X @tab X
+@item Raw CRI ADX audio @tab X @tab X
@item SUN AU format @tab X @tab X
@item NUT @tab X @tab X @tab NUT Open Container Format
@item Quicktime @tab X @tab X
@@ -635,6 +636,8 @@ library:
@tab Multimedia formats used in Westwood Studios games
@item Id Cinematic (.cin) @tab @tab X
@tab Used in Quake II
+@item FLIC format @tab @tab X
+@tab .fli/.flc files
@end multitable
@code{X} means that the encoding (resp. decoding) is supported.
@@ -695,6 +698,7 @@ following image formats are supported:
@item Id RoQ @tab @tab X @tab used in Quake III, Jedi Knight 2, other computer games
@item Xan/WC3 @tab @tab X @tab used in Wing Commander III .MVE files
@item Interplay Video @tab @tab X @tab used in Interplay .MVE files
+@item Apple Graphics @tab @tab X @tab fourcc: 'smc '
@item Apple Video @tab @tab X @tab fourcc: rpza
@item Cinepak @tab @tab X
@item Microsoft RLE @tab @tab X
@@ -702,6 +706,7 @@ following image formats are supported:
@item Westwood VQA @tab @tab X
@item Id Cinematic Video @tab @tab X @tab used in Quake II
@item Planar RGB @tab @tab X @tab fourcc: 8BPS
+@item FLIC video @tab @tab X
@end multitable
@code{X} means that the encoding (resp. decoding) is supported.
@@ -731,7 +736,10 @@ solutions.
@item Duck DK4 IMA ADPCM @tab @tab X
@tab used in some Sega Saturn console games
@item Westwood Studios IMA ADPCM @tab @tab X
-@tab used in Westwood Studios games likes Command and Conquer
+@tab used in Westwood Studios games like Command and Conquer
+@item CD-ROM XA ADPCM @tab @tab X
+@item CRI ADX ADPCM @tab X @tab X
+@tab used in Sega Dreamcast games
@item RA144 @tab @tab X
@tab Real 14400 bit/s codec
@item RA288 @tab @tab X
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 6271aa3ca9..d5accc2d05 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -19,7 +19,7 @@ OBJS= common.o utils.o mem.o allcodecs.o \
vp3.o asv1.o 4xm.o cabac.o ffv1.o ra144.o ra288.o vcr1.o cljr.o \
roqvideo.o dpcm.o interplayvideo.o xan.o rpza.o cinepak.o msrle.o \
msvideo1.o vqavideo.o idcinvideo.o adx.o rational.o faandct.o 8bps.o \
- smc.o parser.o
+ smc.o parser.o flicvideo.o
ifeq ($(AMR_NB),yes)
ifeq ($(AMR_NB_FIXED),yes)
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index f57ff0b509..b7af5bed96 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -137,6 +137,7 @@ void avcodec_register_all(void)
register_avcodec(&idcin_decoder);
register_avcodec(&eightbps_decoder);
register_avcodec(&smc_decoder);
+ register_avcodec(&flic_decoder);
#ifdef CONFIG_AC3
register_avcodec(&ac3_decoder);
#endif
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 64d0ce1644..0e5d1cd0f6 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -86,6 +86,7 @@ enum CodecID {
CODEC_ID_IDCIN,
CODEC_ID_8BPS,
CODEC_ID_SMC,
+ CODEC_ID_FLIC,
/* various pcm "codecs" */
CODEC_ID_PCM_S16LE,
@@ -1574,6 +1575,7 @@ extern AVCodec vqa_decoder;
extern AVCodec idcin_decoder;
extern AVCodec eightbps_decoder;
extern AVCodec smc_decoder;
+extern AVCodec flic_decoder;
extern AVCodec ra_144_decoder;
extern AVCodec ra_288_decoder;
extern AVCodec roq_dpcm_decoder;
diff --git a/libavcodec/flicvideo.c b/libavcodec/flicvideo.c
new file mode 100644
index 0000000000..b5cd366b96
--- /dev/null
+++ b/libavcodec/flicvideo.c
@@ -0,0 +1,461 @@
+/*
+ * FLI/FLC Animation Video Decoder
+ * Copyright (C) 2003 the ffmpeg project
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+/**
+ * @file flic.c
+ * Autodesk Animator FLI/FLC Video Decoder
+ * by Mike Melanson (melanson@pcisys.net)
+ * for more information on the .fli/.flc file format and all of its many
+ * variations, visit:
+ * http://www.compuphase.com/flic.htm
+ *
+ * This decoder outputs PAL8 colorspace data. To use this decoder, be
+ * sure that your demuxer sends the FLI file header to the decoder via
+ * the extradata chunk in AVCodecContext. The chunk should be 128 bytes
+ * large. The only exception is for FLI files from the game "Magic Carpet",
+ * in which the header is only 12 bytes.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "common.h"
+#include "avcodec.h"
+#include "bswap.h"
+
+#define FLI_256_COLOR 4
+#define FLI_DELTA 7
+#define FLI_COLOR 11
+#define FLI_LC 12
+#define FLI_BLACK 13
+#define FLI_BRUN 15
+#define FLI_COPY 16
+#define FLI_MINI 18
+
+#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
+#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
+ (((uint8_t*)(x))[2] << 16) | \
+ (((uint8_t*)(x))[1] << 8) | \
+ ((uint8_t*)(x))[0])
+
+typedef struct FlicDecodeContext {
+ AVCodecContext *avctx;
+ AVFrame frame;
+ AVFrame prev_frame;
+
+ unsigned int palette[256];
+ int new_palette;
+ int fli_type; /* either 0xAF11 or 0xAF12, affects palette resolution */
+} FlicDecodeContext;
+
+static int flic_decode_init(AVCodecContext *avctx)
+{
+ FlicDecodeContext *s = (FlicDecodeContext *)avctx->priv_data;
+ unsigned char *fli_header = (unsigned char *)avctx->extradata;
+
+ s->avctx = avctx;
+ avctx->pix_fmt = PIX_FMT_PAL8;
+ avctx->has_b_frames = 0;
+
+ if (s->avctx->extradata_size == 12) {
+ /* special case for magic carpet FLIs */
+ s->fli_type = 0xAF13;
+ } else if (s->avctx->extradata_size == 128) {
+ s->fli_type = LE_16(&fli_header[4]);
+ } else {
+ printf (" FLI video: expected extradata of 12 or 128 bytes\n");
+ return -1;
+ }
+
+ s->frame.data[0] = s->prev_frame.data[0] = NULL;
+ s->new_palette = 0;
+
+ return 0;
+}
+
+static int flic_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size)
+{
+ FlicDecodeContext *s = (FlicDecodeContext *)avctx->priv_data;
+
+ int stream_ptr = 0;
+ int stream_ptr_after_color_chunk;
+ int pixel_ptr;
+ int palette_ptr;
+ unsigned char palette_idx1;
+ unsigned char palette_idx2;
+
+ unsigned int frame_size;
+ int num_chunks;
+
+ unsigned int chunk_size;
+ int chunk_type;
+
+ int i, j;
+
+ int color_packets;
+ int color_changes;
+ int color_shift;
+ unsigned char r, g, b;
+
+ int lines;
+ int compressed_lines;
+ int starting_line;
+ signed short line_packets;
+ int y_ptr;
+ signed char byte_run;
+ int pixel_skip;
+ int pixel_countdown;
+ int height_countdown;
+ unsigned char *pixels;
+ unsigned char *prev_pixels;
+
+ s->frame.reference = 1;
+ if (avctx->get_buffer(avctx, &s->frame) < 0) {
+ fprintf(stderr, " FLI: get_buffer() failed\n");
+ return -1;
+ }
+
+ pixels = s->frame.data[0];
+ prev_pixels = s->prev_frame.data[0];
+
+ frame_size = LE_32(&buf[stream_ptr]);
+ stream_ptr += 6; /* skip the magic number */
+ num_chunks = LE_16(&buf[stream_ptr]);
+ stream_ptr += 10; /* skip padding */
+
+ frame_size -= 16;
+
+ /* if there is no data, copy previous frame */
+ if (frame_size == 0) {
+ memcpy(pixels, prev_pixels, s->frame.linesize[0] * s->avctx->height);
+ }
+
+ /* iterate through the chunks */
+ while ((frame_size > 0) && (num_chunks > 0)) {
+ chunk_size = LE_32(&buf[stream_ptr]);
+ stream_ptr += 4;
+ chunk_type = LE_16(&buf[stream_ptr]);
+ stream_ptr += 2;
+
+ switch (chunk_type) {
+ case FLI_256_COLOR:
+ case FLI_COLOR:
+ stream_ptr_after_color_chunk = stream_ptr + chunk_size - 6;
+ s->new_palette = 1;
+
+ /* check special case: If this file is from the Magic Carpet
+ * game and uses 6-bit colors even though it reports 256-color
+ * chunks in a 0xAF12-type file (fli_type is set to 0xAF13 during
+ * initialization) */
+ if ((chunk_type == FLI_256_COLOR) && (s->fli_type != 0xAF13))
+ color_shift = 0;
+ else
+ color_shift = 2;
+ /* set up the palette */
+ color_packets = LE_16(&buf[stream_ptr]);
+ stream_ptr += 2;
+ palette_ptr = 0;
+ for (i = 0; i < color_packets; i++) {
+ /* first byte is how many colors to skip */
+ palette_ptr += buf[stream_ptr++];
+
+ /* next byte indicates how many entries to change */
+ color_changes = buf[stream_ptr++];
+
+ /* if there are 0 color changes, there are actually 256 */
+ if (color_changes == 0)
+ color_changes = 256;
+
+ for (j = 0; j < color_changes; j++) {
+
+ /* wrap around, for good measure */
+ if (palette_ptr >= 256)
+ palette_ptr = 0;
+
+ r = buf[stream_ptr++] << color_shift;
+ g = buf[stream_ptr++] << color_shift;
+ b = buf[stream_ptr++] << color_shift;
+ s->palette[palette_ptr++] = (r << 16) | (g << 8) | b;
+ }
+ }
+
+ /* color chunks sometimes have weird 16-bit alignment issues;
+ * therefore, take the hardline approach and set the stream_ptr
+ * to the value calculated w.r.t. the size specified by the color
+ * chunk header */
+ stream_ptr = stream_ptr_after_color_chunk;
+
+ break;
+
+ case FLI_DELTA:
+ y_ptr = 0;
+ height_countdown = s->avctx->height;
+ compressed_lines = LE_16(&buf[stream_ptr]);
+ stream_ptr += 2;
+ while (compressed_lines > 0) {
+ line_packets = LE_16(&buf[stream_ptr]);
+ stream_ptr += 2;
+ if (line_packets < 0) {
+ line_packets = -line_packets;
+ /* height_countdown was already decremented once on
+ * this iteration */
+ height_countdown -= line_packets;
+ /* copy the skipped lines from the previous frame */
+ while (line_packets--) {
+ memcpy(&pixels[y_ptr], &prev_pixels[y_ptr],
+ s->avctx->width);
+ y_ptr += s->frame.linesize[0];
+ }
+ } else {
+ height_countdown--;
+ compressed_lines--;
+ pixel_ptr = y_ptr;
+ pixel_countdown = s->avctx->width;
+ for (i = 0; i < line_packets; i++) {
+ /* account for the skip bytes */
+ pixel_skip = buf[stream_ptr++];
+ memcpy(&pixels[pixel_ptr], &prev_pixels[pixel_ptr],
+ pixel_skip);
+ pixel_ptr += pixel_skip;
+ pixel_countdown -= pixel_skip;
+ byte_run = buf[stream_ptr++];
+ if (byte_run < 0) {
+ byte_run = -byte_run;
+ palette_idx1 = buf[stream_ptr++];
+ palette_idx2 = buf[stream_ptr++];
+ for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {
+ pixels[pixel_ptr++] = palette_idx1;
+ pixels[pixel_ptr++] = palette_idx2;
+ }
+ } else {
+ for (j = 0; j < byte_run * 2; j++, pixel_countdown--) {
+ palette_idx1 = buf[stream_ptr++];
+ pixels[pixel_ptr++] = palette_idx1;
+ }
+ }
+ }
+
+ /* copy the remaining pixels in the line from the
+ * previous frame */
+ memcpy(&pixels[pixel_ptr], &prev_pixels[pixel_ptr],
+ pixel_countdown);
+
+ y_ptr += s->frame.linesize[0];
+ }
+ }
+
+ /* copy the remainder of the lines from the previous frame */
+ while (height_countdown--) {
+ memcpy(&pixels[y_ptr], &prev_pixels[y_ptr], s->avctx->width);
+ y_ptr += s->frame.linesize[0];
+ }
+ break;
+
+ case FLI_LC:
+ /* line compressed */
+ height_countdown = s->avctx->height;
+ starting_line = LE_16(&buf[stream_ptr]);
+ stream_ptr += 2;
+
+ /* copy from the previous frame all of the lines prior to the
+ * starting line */
+ y_ptr = 0;
+ height_countdown -= starting_line;
+ while (starting_line--) {
+ memcpy(&pixels[y_ptr], &prev_pixels[y_ptr], s->avctx->width);
+ y_ptr += s->frame.linesize[0];
+ }
+
+ compressed_lines = LE_16(&buf[stream_ptr]);
+ stream_ptr += 2;
+ while (compressed_lines > 0) {
+ pixel_ptr = y_ptr;
+ pixel_countdown = s->avctx->width;
+ line_packets = buf[stream_ptr++];
+ if (line_packets > 0) {
+ for (i = 0; i < line_packets; i++) {
+ /* account for the skip bytes */
+ pixel_skip = buf[stream_ptr++];
+ memcpy(&pixels[pixel_ptr],
+ &prev_pixels[pixel_ptr], pixel_skip);
+ pixel_ptr += pixel_skip;
+ pixel_countdown -= pixel_skip;
+ byte_run = buf[stream_ptr++];
+ if (byte_run > 0) {
+ for (j = 0; j < byte_run; j++, pixel_countdown--) {
+ palette_idx1 = buf[stream_ptr++];
+ pixels[pixel_ptr++] = palette_idx1;
+ }
+ } else {
+ byte_run = -byte_run;
+ palette_idx1 = buf[stream_ptr++];
+ for (j = 0; j < byte_run; j++, pixel_countdown--) {
+ pixels[pixel_ptr++] = palette_idx1;
+ }
+ }
+ }
+ }
+
+ /* copy the remainder of the line from the previous frame */
+ memcpy(&pixels[pixel_ptr], &prev_pixels[pixel_ptr],
+ pixel_countdown);
+
+ y_ptr += s->frame.linesize[0];
+ compressed_lines--;
+ height_countdown--;
+ }
+
+ /* copy the remainder of the lines from the previous frame */
+ while (height_countdown--) {
+ memcpy(&pixels[y_ptr], &prev_pixels[y_ptr], s->avctx->width);
+ y_ptr += s->frame.linesize[0];
+ }
+ break;
+
+ case FLI_BLACK:
+ /* set the whole frame to color 0 (which is usually black) */
+ memset(pixels, 0,
+ s->frame.linesize[0] * s->avctx->height);
+ break;
+
+ case FLI_BRUN:
+ /* Byte run compression: This chunk type only occurs in the first
+ * FLI frame and it will update the entire frame. */
+ y_ptr = 0;
+ for (lines = 0; lines < s->avctx->height; lines++) {
+ pixel_ptr = y_ptr;
+ /* disregard the line packets; instead, iterate through all
+ * pixels on a row */
+ stream_ptr++;
+ pixel_countdown = s->avctx->width;
+ while (pixel_countdown > 0) {
+ byte_run = buf[stream_ptr++];
+ if (byte_run > 0) {
+ palette_idx1 = buf[stream_ptr++];
+ for (j = 0; j < byte_run; j++) {
+ pixels[pixel_ptr++] = palette_idx1;
+ pixel_countdown--;
+ if (pixel_countdown < 0)
+ printf ("fli warning: pixel_countdown < 0 (%d)\n",
+ pixel_countdown);
+ }
+ } else { /* copy bytes if byte_run < 0 */
+ byte_run = -byte_run;
+ for (j = 0; j < byte_run; j++) {
+ palette_idx1 = buf[stream_ptr++];
+ pixels[pixel_ptr++] = palette_idx1;
+ pixel_countdown--;
+ if (pixel_countdown < 0)
+ printf ("fli warning: pixel_countdown < 0 (%d)\n",
+ pixel_countdown);
+ }
+ }
+ }
+
+ y_ptr += s->frame.linesize[0];
+ }
+ break;
+
+ case FLI_COPY:
+ /* copy the chunk (uncompressed frame) to the ghost image and
+ * schedule the whole frame to be updated */
+ if (chunk_size - 6 > s->avctx->width * s->avctx->height) {
+ printf(
+ "FLI: in chunk FLI_COPY : source data (%d bytes) bigger than" \
+ " image, skipping chunk\n",
+ chunk_size - 6);
+ stream_ptr += chunk_size - 6;
+ } else {
+ for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;
+ y_ptr += s->frame.linesize[0]) {
+ memcpy(&pixels[y_ptr], &buf[stream_ptr],
+ s->avctx->width);
+ stream_ptr += s->avctx->width;
+ }
+ }
+ break;
+
+ case FLI_MINI:
+ /* some sort of a thumbnail? disregard this chunk... */
+ stream_ptr += chunk_size - 6;
+ break;
+
+ default:
+ printf ("FLI: Unrecognized chunk type: %d\n", chunk_type);
+ break;
+ }
+
+ frame_size -= chunk_size;
+ num_chunks--;
+ }
+
+ /* by the end of the chunk, the stream ptr should equal the frame
+ * size (minus 1, possibly); if it doesn't, issue a warning */
+ if ((stream_ptr != buf_size) && (stream_ptr != buf_size - 1))
+ printf (" warning: processed FLI chunk where chunk size = %d\n" \
+ " and final chunk ptr = %d\n",
+ buf_size, stream_ptr);
+
+ /* make the palette available on the way out */
+// if (s->new_palette) {
+ if (1) {
+ memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
+ s->frame.palette_has_changed = 1;
+ s->new_palette = 0;
+ }
+
+ if (s->prev_frame.data[0])
+ avctx->release_buffer(avctx, &s->prev_frame);
+
+ /* shuffle frames */
+ s->prev_frame = s->frame;
+
+ *data_size=sizeof(AVFrame);
+ *(AVFrame*)data = s->frame;
+
+ return buf_size;
+}
+
+static int flic_decode_end(AVCodecContext *avctx)
+{
+ FlicDecodeContext *s = avctx->priv_data;
+
+ if (s->prev_frame.data[0])
+ avctx->release_buffer(avctx, &s->prev_frame);
+
+ return 0;
+}
+
+AVCodec flic_decoder = {
+ "flic",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_FLIC,
+ sizeof(FlicDecodeContext),
+ flic_decode_init,
+ NULL,
+ flic_decode_end,
+ flic_decode_frame,
+ CODEC_CAP_DR1,
+ NULL
+};
diff --git a/libavformat/Makefile b/libavformat/Makefile
index bfda4761cb..0984c72a8d 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -15,7 +15,7 @@ PPOBJS=
OBJS+=mpeg.o mpegts.o mpegtsenc.o ffm.o crc.o img.o raw.o rm.o \
avienc.o avidec.o wav.o swf.o au.o gif.o mov.o mpjpeg.o dv.o \
yuv4mpeg.o 4xm.o flvenc.o flvdec.o movenc.o psxstr.o idroq.o ipmovie.o \
- nut.o wc3movie.o mp3.o westwood.o segafilm.o idcin.o
+ nut.o wc3movie.o mp3.o westwood.o segafilm.o idcin.o flic.o
ifeq ($(CONFIG_RISKY),yes)
OBJS+= asf.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index cc213f940a..9446c0c1a7 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -69,6 +69,7 @@ void av_register_all(void)
westwood_init();
film_init();
idcin_init();
+ flic_init();
#if defined(AMR_NB) || defined(AMR_NB_FIXED) || defined(AMR_WB)
amr_init();
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 8aaedeb319..cf81c88f7a 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -479,6 +479,9 @@ int film_init(void);
/* idcin.c */
int idcin_init(void);
+/* flic.c */
+int flic_init(void);
+
#include "rtp.h"
#include "rtsp.h"
diff --git a/libavformat/flic.c b/libavformat/flic.c
new file mode 100644
index 0000000000..cab689a8ef
--- /dev/null
+++ b/libavformat/flic.c
@@ -0,0 +1,228 @@
+/*
+ * FLI/FLC Animation File Demuxer
+ * Copyright (c) 2003 The ffmpeg Project
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/**
+ * @file flic.c
+ * FLI/FLC file demuxer
+ * by Mike Melanson (melanson@pcisys.net)
+ * for more information on the .fli/.flc file format and all of its many
+ * variations, visit:
+ * http://www.compuphase.com/flic.htm
+ *
+ * This demuxer handles standard 0xAF11- and 0xAF12-type FLIs. It also
+ * handles special FLIs from the PC game "Magic Carpet".
+ */
+
+#include "avformat.h"
+
+#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
+#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
+ (((uint8_t*)(x))[2] << 16) | \
+ (((uint8_t*)(x))[1] << 8) | \
+ ((uint8_t*)(x))[0])
+
+#define FLIC_FILE_MAGIC_1 0xAF11
+#define FLIC_FILE_MAGIC_2 0xAF12
+#define FLIC_CHUNK_MAGIC_1 0xF1FA
+#define FLIC_CHUNK_MAGIC_2 0xF5FA
+#define FLIC_MC_PTS_INC 6000 /* pts increment for Magic Carpet game FLIs */
+#define FLIC_DEFAULT_PTS_INC 6000 /* for FLIs that have 0 speed */
+
+#define FLIC_HEADER_SIZE 128
+#define FLIC_PREAMBLE_SIZE 6
+
+typedef struct FlicDemuxContext {
+ int frame_pts_inc;
+ int64_t pts;
+ int video_stream_index;
+} FlicDemuxContext;
+
+static int flic_probe(AVProbeData *p)
+{
+ int magic_number;
+
+ if (p->buf_size < 6)
+ return 0;
+
+ magic_number = LE_16(&p->buf[4]);
+ if ((magic_number != FLIC_FILE_MAGIC_1) &&
+ (magic_number != FLIC_FILE_MAGIC_2))
+ return 0;
+
+ return AVPROBE_SCORE_MAX;
+}
+
+static int flic_read_header(AVFormatContext *s,
+ AVFormatParameters *ap)
+{
+ FlicDemuxContext *flic = (FlicDemuxContext *)s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ unsigned char header[FLIC_HEADER_SIZE];
+ AVStream *st;
+ int speed;
+ int magic_number;
+
+ flic->pts = 0;
+
+ /* load the whole header and pull out the width and height */
+ if (get_buffer(pb, header, FLIC_HEADER_SIZE) != FLIC_HEADER_SIZE)
+ return -EIO;
+
+ magic_number = LE_16(&header[4]);
+ speed = LE_32(&header[0x10]);
+
+ /* initialize the decoder streams */
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR_NOMEM;
+ flic->video_stream_index = st->index;
+ st->codec.codec_type = CODEC_TYPE_VIDEO;
+ st->codec.codec_id = CODEC_ID_FLIC;
+ st->codec.codec_tag = 0; /* no fourcc */
+ st->codec.width = LE_16(&header[0x08]);
+ st->codec.height = LE_16(&header[0x0A]);
+
+ if (!st->codec.width || !st->codec.height)
+ return AVERROR_INVALIDDATA;
+
+ /* send over the whole 128-byte FLIC header */
+ st->codec.extradata_size = FLIC_HEADER_SIZE;
+ st->codec.extradata = av_malloc(FLIC_HEADER_SIZE);
+ memcpy(st->codec.extradata, header, FLIC_HEADER_SIZE);
+
+ /* set the pts reference (1 pts = 1/90000) */
+ s->pts_num = 1;
+ s->pts_den = 90000;
+
+ /* Time to figure out the framerate: If there is a FLIC chunk magic
+ * number at offset 0x10, assume this is from the Bullfrog game,
+ * Magic Carpet. */
+ if (LE_16(&header[0x10]) == FLIC_CHUNK_MAGIC_1) {
+
+ flic->frame_pts_inc = FLIC_MC_PTS_INC;
+
+ /* rewind the stream since the first chunk is at offset 12 */
+ url_fseek(pb, 12, SEEK_SET);
+
+ /* send over abbreviated FLIC header chunk */
+ av_free(st->codec.extradata);
+ st->codec.extradata_size = 12;
+ st->codec.extradata = av_malloc(12);
+ memcpy(st->codec.extradata, header, 12);
+
+ } else if (magic_number == FLIC_FILE_MAGIC_1) {
+ /*
+ * in this case, the speed (n) is number of 1/70s ticks between frames:
+ *
+ * pts n * frame #
+ * -------- = ----------- => pts = n * (90000/70) * frame #
+ * 90000 70
+ *
+ * therefore, the frame pts increment = n * 1285.7
+ */
+ flic->frame_pts_inc = speed * 1285.7;
+ } else if (magic_number == FLIC_FILE_MAGIC_2) {
+ /*
+ * in this case, the speed (n) is number of milliseconds between frames:
+ *
+ * pts n * frame #
+ * -------- = ----------- => pts = n * 90 * frame #
+ * 90000 1000
+ *
+ * therefore, the frame pts increment = n * 90
+ */
+ flic->frame_pts_inc = speed * 90;
+ } else
+ return AVERROR_INVALIDDATA;
+
+ if (flic->frame_pts_inc == 0)
+ flic->frame_pts_inc = FLIC_DEFAULT_PTS_INC;
+
+ return 0;
+}
+
+static int flic_read_packet(AVFormatContext *s,
+ AVPacket *pkt)
+{
+ FlicDemuxContext *flic = (FlicDemuxContext *)s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ int packet_read = 0;
+ unsigned int size;
+ int magic;
+ int ret = 0;
+ unsigned char preamble[FLIC_PREAMBLE_SIZE];
+
+ while (!packet_read) {
+
+ if ((ret = get_buffer(pb, preamble, FLIC_PREAMBLE_SIZE)) !=
+ FLIC_PREAMBLE_SIZE) {
+ ret = -EIO;
+ break;
+ }
+
+ size = LE_32(&preamble[0]);
+ magic = LE_16(&preamble[4]);
+
+ if ((magic == FLIC_CHUNK_MAGIC_1) || (magic == FLIC_CHUNK_MAGIC_2)) {
+ if (av_new_packet(pkt, size)) {
+ ret = -EIO;
+ break;
+ }
+ pkt->stream_index = flic->video_stream_index;
+ pkt->pts = flic->pts;
+ memcpy(pkt->data, preamble, FLIC_PREAMBLE_SIZE);
+ ret = get_buffer(pb, pkt->data + FLIC_PREAMBLE_SIZE,
+ size - FLIC_PREAMBLE_SIZE);
+ if (ret != size - FLIC_PREAMBLE_SIZE) {
+ av_free_packet(pkt);
+ ret = -EIO;
+ }
+ flic->pts += flic->frame_pts_inc;
+ packet_read = 1;
+ } else {
+ /* not interested in this chunk */
+ url_fseek(pb, size - 6, SEEK_CUR);
+ }
+ }
+
+ return ret;
+}
+
+static int flic_read_close(AVFormatContext *s)
+{
+// FlicDemuxContext *flic = (FlicDemuxContext *)s->priv_data;
+
+ return 0;
+}
+
+static AVInputFormat flic_iformat = {
+ "flic",
+ "FLI/FLC animation format",
+ sizeof(FlicDemuxContext),
+ flic_probe,
+ flic_read_header,
+ flic_read_packet,
+ flic_read_close,
+};
+
+int flic_init(void)
+{
+ av_register_input_format(&flic_iformat);
+ return 0;
+}