mirror of https://github.com/mpv-player/mpv
add support for sgi files to mencoder patch by (Todd Kirby <slapcat at pacbell dot net>)
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9535 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael
parent
1815f7c64e
commit
b749836b08
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@ -68,6 +68,15 @@ videocodec mtga
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driver mtga
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out BGR32,BGR24
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videocodec sgi
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info "SGI images decoder"
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status working
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comment "SGI1 is an internal MPlayer FOURCC"
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fourcc SGI1
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driver sgi
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out BGR24
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videocodec fli
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info "Autodesk FLI/FLC Animation"
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status working
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@ -10,7 +10,7 @@ AUDIO_SRCS_OPT=ad_acm.c ad_dshow.c ad_dmo.c ad_qtaudio.c ad_ffmpeg.c ad_faad.c a
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AUDIO_SRCS=dec_audio.c ad.c $(AUDIO_SRCS_LIB) $(AUDIO_SRCS_NAT) $(AUDIO_SRCS_OPT)
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VIDEO_SRCS_LIB=vd_libmpeg2.c vd_nuv.c vd_lzo.c
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VIDEO_SRCS_NAT=vd_null.c vd_cinepak.c vd_qtrpza.c vd_raw.c vd_msvidc.c vd_fli.c vd_qtrle.c vd_qtsmc.c vd_roqvideo.c vd_cyuv.c vd_msrle.c vd_huffyuv.c vd_mpegpes.c vd_svq1.c vd_lcl.c vd_mtga.c
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VIDEO_SRCS_NAT=vd_null.c vd_cinepak.c vd_qtrpza.c vd_raw.c vd_msvidc.c vd_fli.c vd_qtrle.c vd_qtsmc.c vd_roqvideo.c vd_cyuv.c vd_msrle.c vd_huffyuv.c vd_mpegpes.c vd_svq1.c vd_lcl.c vd_mtga.c vd_sgi.c
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VIDEO_SRCS_OPT=vd_realvid.c vd_ffmpeg.c vd_dshow.c vd_dmo.c vd_vfw.c vd_vfwex.c vd_odivx.c vd_divx4.c vd_xanim.c vd_xvid.c vd_libdv.c vd_qtvideo.c
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VIDEO_SRCS=dec_video.c vd.c $(VIDEO_SRCS_NAT) $(VIDEO_SRCS_LIB) $(VIDEO_SRCS_OPT)
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@ -48,6 +48,7 @@ extern vd_functions_t mpcodecs_vd_nuv;
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extern vd_functions_t mpcodecs_vd_mpng;
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extern vd_functions_t mpcodecs_vd_ijpg;
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extern vd_functions_t mpcodecs_vd_mtga;
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extern vd_functions_t mpcodecs_vd_sgi;
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extern vd_functions_t mpcodecs_vd_libmpeg2;
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extern vd_functions_t mpcodecs_vd_huffyuv;
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extern vd_functions_t mpcodecs_vd_mpegpes;
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@ -100,6 +101,7 @@ vd_functions_t* mpcodecs_vd_drivers[] = {
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&mpcodecs_vd_ijpg,
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#endif
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&mpcodecs_vd_mtga,
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&mpcodecs_vd_sgi,
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#ifdef USE_LIBMPEG2
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&mpcodecs_vd_libmpeg2,
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#endif
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@ -0,0 +1,327 @@
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/*
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* author: Todd Kirby <slapcat@pacbell.net>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "bswap.h"
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#include "vd_internal.h"
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#define SGI_HEADER_LEN 512
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#define SGI_MAGIC 474
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#define SGI_GRAYSCALE_IMAGE 1
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#define SGI_RGB_IMAGE 3
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#define SGI_RGBA_IMAGE 4
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#define OUT_PIXEL_STRIDE 3 /* RGB */
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static vd_info_t info =
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{
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"SGI Image decoder",
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"sgi",
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"Todd Kirby",
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"Todd Kirby",
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""
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};
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LIBVD_EXTERN(sgi)
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typedef struct {
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short magic;
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char rle;
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char bytes_per_channel;
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unsigned short dimension;
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unsigned short xsize;
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unsigned short ysize;
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unsigned short zsize;
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} SGIInfo;
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static unsigned int outfmt = IMGFMT_BGR24;
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static unsigned short last_x = -1;
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static unsigned short last_y = -1;
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/* to set/get/query special features/parameters */
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static int
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control(sh_video_t* sh, int cmd, void *arg, ...)
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{
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switch (cmd)
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{
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case VDCTRL_QUERY_FORMAT:
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if (*((unsigned int *) arg) == outfmt) {
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return CONTROL_TRUE;
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}
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return CONTROL_FALSE;
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}
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return CONTROL_UNKNOWN;
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}
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/* init driver */
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static int
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init(sh_video_t *sh)
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{
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sh->context = (SGIInfo *) calloc(1, sizeof(SGIInfo));
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last_x = -1;
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return 1;
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}
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/* uninit driver */
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static void
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uninit(sh_video_t *sh)
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{
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SGIInfo *info = sh->context;
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free(info);
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}
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/* expand an rle row into a channel */
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static void
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expandrow(unsigned char *optr, unsigned char *iptr, int chan_offset)
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{
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unsigned char pixel, count;
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optr += chan_offset;
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while (1) {
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pixel = *iptr++;
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if (!(count = (pixel & 0x7f))) {
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return;
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}
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if(pixel & 0x80) {
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while (count--) {
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*optr = *iptr;
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optr += OUT_PIXEL_STRIDE;
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iptr++;
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}
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} else {
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pixel = *iptr++;
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while (count--) {
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*optr = pixel;
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optr += OUT_PIXEL_STRIDE;
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}
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}
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}
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}
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/* expand an rle row into all 3 channels.
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a separate function for grayscale so we don't slow down the
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more common case rgb function with a bunch of ifs. */
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static void
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expandrow_gs(unsigned char *optr, unsigned char *iptr)
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{
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unsigned char pixel, count;
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while (1) {
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pixel = *iptr++;
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if (!(count = (pixel & 0x7f))) {
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return;
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}
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if(pixel & 0x80) {
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while (count--) {
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optr[0] = *iptr;
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optr[1] = *iptr;
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optr[2] = *iptr;
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optr += OUT_PIXEL_STRIDE;
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iptr++;
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}
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} else {
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pixel = *iptr++;
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while (count--) {
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optr[0] = pixel;
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optr[1] = pixel;
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optr[2] = pixel;
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optr += OUT_PIXEL_STRIDE;
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}
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}
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}
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}
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/* decode a run length encoded sgi image */
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static void
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decode_rle_sgi(SGIInfo *info, unsigned char *data, mp_image_t *mpi)
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{
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unsigned char *rle_data, *dest_row;
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unsigned long *starttab;
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int y, z, xsize, ysize, zsize, chan_offset;
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long start_offset;
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xsize = info->xsize;
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ysize = info->ysize;
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zsize = info->zsize;
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/* rle offset table is right after the header */
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starttab = (long*)(data + SGI_HEADER_LEN);
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for (z = 0; z < zsize; z++) {
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/* set chan_offset so RGB ends up BGR */
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chan_offset = (zsize - 1) - z;
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/* The origin for SGI images is the lower-left corner
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so read scan lines from bottom to top */
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for (y = ysize - 1; y >= 0; y--) {
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dest_row = mpi->planes[0] + mpi->stride[0] * (ysize - 1 - y);
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/* set start of next run (offsets are from start of header) */
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start_offset = be2me_32(*(unsigned long*) &starttab[y + z * ysize]);
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rle_data = &data[start_offset];
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if(info->zsize == SGI_GRAYSCALE_IMAGE) {
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expandrow_gs(dest_row, rle_data);
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} else {
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expandrow(dest_row, rle_data, chan_offset);
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}
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}
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}
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}
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/* decode an sgi image */
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static void
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decode_uncompressed_sgi(SGIInfo *info, unsigned char *data, mp_image_t *mpi)
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{
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unsigned char *src_row, *dest_row;
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int x, y, z, xsize, ysize, zsize, chan_offset;
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xsize = info->xsize;
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ysize = info->ysize;
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zsize = info->zsize;
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/* skip header */
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data += SGI_HEADER_LEN;
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for (z = 0; z < zsize; z++) {
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/* set row ptr to start of current plane */
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src_row = data + (xsize * ysize * z);
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/* set chan_offset for RGB -> BGR */
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chan_offset = (zsize - 1) - z;
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/* the origin for SGI images is the lower-left corner
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so read scan lines from bottom to top. */
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for (y = ysize - 1; y >= 0; y--) {
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dest_row = mpi->planes[0] + mpi->stride[0] * y;
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for (x = 0; x < xsize; x++) {
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/* we only do 24 bit output so promote 8 bit pixels to 24 */
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if (zsize == SGI_GRAYSCALE_IMAGE) {
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/* write greyscale value into all channels */
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dest_row[0] = src_row[x];
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dest_row[1] = src_row[x];
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dest_row[2] = src_row[x];
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} else {
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dest_row[chan_offset] = src_row[x];
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}
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dest_row += OUT_PIXEL_STRIDE;
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}
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/* move to next row of the current source plane */
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src_row += xsize;
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}
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}
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}
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/* read sgi header fields */
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static void
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read_sgi_header(unsigned char *buf, SGIInfo *info)
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{
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/* sgi data is always stored in big endian byte order */
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info->magic = be2me_16(*(unsigned short *) &buf[0]);
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info->rle = buf[2];
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info->bytes_per_channel = buf[3];
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info->dimension = be2me_16(*(unsigned short *) &buf[4]);
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info->xsize = be2me_16(*(unsigned short *) &buf[6]);
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info->ysize = be2me_16(*(unsigned short *) &buf[8]);
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info->zsize = be2me_16(*(unsigned short *) &buf[10]);
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}
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/* decode a frame */
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static
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mp_image_t *decode(sh_video_t *sh, void *raw, int len, int flags)
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{
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SGIInfo *info = sh->context;
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unsigned char *data = raw;
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mp_image_t *mpi;
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if (len <= 0) {
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return NULL; /* skip frame */
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}
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read_sgi_header(data, info);
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/* make sure this is an SGI image file */
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if (info->magic != SGI_MAGIC) {
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mp_msg(MSGT_DECVIDEO, MSGL_INFO, "Bad magic number in image.\n");
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return NULL;
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}
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/* check image depth */
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if (info->bytes_per_channel != 1) {
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mp_msg(MSGT_DECVIDEO, MSGL_INFO,
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"Unsupported bytes per channel value %i.\n", info->bytes_per_channel);
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return NULL;
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}
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/* check image dimension */
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if (info->dimension != 2 && info->dimension != 3) {
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mp_msg(MSGT_DECVIDEO, MSGL_INFO, "Unsupported image dimension %i.\n",
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info->dimension);
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return NULL;
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}
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/* change rgba images to rgb so alpha channel will be ignored */
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if (info->zsize == SGI_RGBA_IMAGE) {
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info->zsize = SGI_RGB_IMAGE;
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}
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/* check image depth */
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if (info->zsize != SGI_RGB_IMAGE && info->zsize != SGI_GRAYSCALE_IMAGE) {
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mp_msg(MSGT_DECVIDEO, MSGL_INFO, "Unsupported image depth.\n");
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return NULL;
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}
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/* (re)init libvo if image size is changed */
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if (last_x != info->xsize || last_y != info->ysize)
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{
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last_x = info->xsize;
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last_y = info->ysize;
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if (!mpcodecs_config_vo(sh, info->xsize, info->ysize, outfmt)) {
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mp_msg(MSGT_DECVIDEO, MSGL_INFO, "Config vo failed:\n");
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return NULL;
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}
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}
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if (!(mpi = mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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info->xsize, info->ysize))) {
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return NULL;
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}
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if (info->rle) {
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decode_rle_sgi(info, data, mpi);
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} else {
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decode_uncompressed_sgi(info, data, mpi);
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}
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return mpi;
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}
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@ -98,7 +98,9 @@ demuxer_t* demux_open_mf(demuxer_t* demuxer){
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if ( !strcasecmp( mf_type,"png" )) sh_video->format = mmioFOURCC('M', 'P', 'N', 'G' );
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else
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if ( !strcasecmp( mf_type,"tga" )) sh_video->format = mmioFOURCC('M', 'T', 'G', 'A' );
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else { mp_msg(MSGT_DEMUX, MSGL_INFO, "[demux_mf] unknow input file type.\n" ); free( mf ); return NULL; }
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else
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if (!strcasecmp( mf_type,"sgi" )) sh_video->format = mmioFOURCC('S', 'G', 'I', '1');
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else { mp_msg(MSGT_DEMUX, MSGL_INFO, "[demux_mf] unknown input file type.\n" ); free( mf ); return NULL; }
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sh_video->disp_w = mf_w;
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sh_video->disp_h = mf_h;
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