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Diffstat (limited to 'libmpcodecs/vd_zrmjpeg.c')
-rw-r--r--libmpcodecs/vd_zrmjpeg.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/libmpcodecs/vd_zrmjpeg.c b/libmpcodecs/vd_zrmjpeg.c
deleted file mode 100644
index 8dd460ab5b..0000000000
--- a/libmpcodecs/vd_zrmjpeg.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Copyright (C) 2005 Rik Snel <rsnel@cube.dyndns.org>
- * - based on vd_mpegpes.c by A'rpi (C) 2002-2003
- * - guess_mjpeg_type code stolen from lav_io.c (C) 2000 Rainer Johanni
- * <Rainer@Johanni.de> from the mjpegtools package
- *
- * This file is part of MPlayer.
- *
- * MPlayer is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * MPlayer 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with MPlayer; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "config.h"
-#include "mp_msg.h"
-#include "vfcap.h"
-
-/* some convenient #define's, is this portable enough? */
-#define VERBOSE(...) mp_msg(MSGT_DECVIDEO, MSGL_V, "vd_zrmjpeg: " __VA_ARGS__)
-#define ERROR(...) mp_msg(MSGT_DECVIDEO, MSGL_ERR, "vd_zrmjpeg: " __VA_ARGS__)
-#define WARNING(...) mp_msg(MSGT_DECVIDEO, MSGL_WARN, \
- "vd_zrmjpeg: " __VA_ARGS__)
-
-#include "vd_internal.h"
-
-static const vd_info_t info =
-{
- "Zoran MJPEG Video passthrough",
- "zrmjpeg",
- "Rik Snel <snel@phys.uu.nl>",
- "Rik Snel <snel@phys.uu.nl>",
- "for hw decoders (DC10(+)/buz/lml33)"
-};
-
-LIBVD_EXTERN(zrmjpeg)
-
-#include "libvo/video_out.h"
-
-typedef struct {
- int vo_initialized;
- unsigned int preferred_csp;
-} vd_zrmjpeg_ctx_t;
-
-static int query_format(sh_video_t *sh, unsigned int format) {
- vd_zrmjpeg_ctx_t *ctx = sh->context;
- if (format == ctx->preferred_csp) return VFCAP_CSP_SUPPORTED;
- return CONTROL_FALSE;
-}
-
-// to set/get/query special features/parameters
-static int control(sh_video_t *sh, int cmd, void* arg, ...) {
- switch (cmd) {
- case VDCTRL_QUERY_FORMAT:
- return query_format(sh, *((unsigned int*)arg));
- }
- return CONTROL_UNKNOWN;
-}
-
-// init driver
-static int init(sh_video_t *sh) {
- vd_zrmjpeg_ctx_t *ctx;
-
- VERBOSE("init called\n");
- ctx = malloc(sizeof(*ctx));
- if (!ctx) return 0;
- memset(ctx, 0, sizeof(*ctx));
- sh->context = ctx;
-
- /* defer init of vo until the first frame is known */
- return 1;
-#if 0
- return mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_ZRMJPEGIT);
-#endif
-}
-
-// uninit driver
-static void uninit(sh_video_t *sh) {
- free(sh->context);
-}
-
-/* parts directly stolen from scan_jpg() and lav_open_input_file */
-static int get_int2(unsigned char *buf) {
- return buf[0]*256 + buf[1];
-}
-
-#define M_SOF0 0xC0
-#define M_SOF1 0xC1
-#define M_DHT 0xC4
-#define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */
-#define M_EOI 0xD9 /* End Of Image (end of datastream) */
-#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */
-#define M_DQT 0xDB
-#define M_APP0 0xE0
-#define M_APP1 0xE1
-/* returns 0 in case of failure */
-static unsigned int guess_mjpeg_type(unsigned char *data, unsigned int size,
- int d_height) {
- unsigned int p;
- int marker, length, height, i, hf[3], vf[3];
- unsigned int app0 = 0, header = 0;
-
- /* The initial marker must be SIO */
- if (size < 2) {
- ERROR("JPEG data too short (%d bytes)\n", size);
- return 0;
- }
-
- if (data[0] != 0xFF || data[1] != M_SOI) {
- ERROR("JPEG data must start with FFD8, but doesn't\n");
- return 0;
- }
-
- p = 2; /* pointer within jpeg data */
-
- while (p < size) {
- /* search 0xFF */
- while(data[p] != 0xFF) {
- p++;
- if (p >= size) return 0;
- }
-
- /* get marker code, skip duplicate FF's */
- while(data[p] == 0xFF) {
- p++;
- if (p >= size) return 0;
- }
-
- marker = data[p++];
-
- /* marker may have an associated length */
- if (p <= size - 2) length = get_int2(data+p);
- else length = 0;
-
- switch (marker) {
- case M_SOF0:
- case M_SOF1:
- header = p-2;
- VERBOSE("found offset of header %u\n",
- header);
- break;
- case M_SOS:
- size = 0;
- continue;
- case M_APP0:
- app0 = p-2;
- VERBOSE("found offset of APP0 %u\n",
- app0);
- break;
- }
-
- /* these markers shouldn't have parameters,
- * i.e. we don't need to skip anaything */
- if (marker == 0 || marker == 1 ||
- (marker >= 0xd0 && marker < 0xd8))
- continue;
-
- if (p + length <= size) p += length;
- else {
- ERROR("input JPEG too short, data missing\n");
- return 0;
- }
- }
-
- if (!header) {
- ERROR("JPEG header (with resolution and sampling factors) not found\n");
- return 0;
- }
-
- if (data[header + 9] != 3) {
- ERROR("JPEG has wrong number of components\n");
- return 0;
- }
-
- /* get the horizontal and vertical sample factors */
- for (i = 0; i < 3; i++) {
- hf[i] = data[header + 10 + 3*i + 1]>>4;
- vf[i] = data[header + 10 + 3*i + 1]&0x0F;
- }
-
- if (hf[0] != 2 || hf[1] != 1 || hf[2] != 1 ||
- vf[0] != 1 || vf[1] != 1 || vf[2] != 1) {
- ERROR("JPEG has wrong internal image format\n");
- } else VERBOSE("JPEG has colorspace YUV422 with minimal sampling factors (good)\n");
-
- height = get_int2(data + header + 5);
- if (height == d_height) {
- VERBOSE("data is non interlaced\n");
- return IMGFMT_ZRMJPEGNI;
- }
-
- if (2*height != d_height) {
- ERROR("something very inconsistent happened\n");
- return 0;
- }
-
-
- if (app0 && get_int2(data + app0 + 2) >= 5 &&
- strncasecmp((char*)(data + app0 + 4), "AVI1", 4) == 0) {
- if (data[app0+8] == 1) {
- VERBOSE("data is interlaced, APP0: top-first (1)\n");
- return IMGFMT_ZRMJPEGIT;
- } else {
- VERBOSE("data is interlaced, APP0: bottom-first (%d)\n",
- data[app0+8]);
- return IMGFMT_ZRMJPEGIB;
- }
- } else {
- VERBOSE("data is interlaced, no (valid) APP0 marker, "
- "guessing top-first\n");
- return IMGFMT_ZRMJPEGIT;
- }
-
-
- return 0;
-}
-
-// decode a frame
-static mp_image_t* decode(sh_video_t *sh, void* data, int len, int flags) {
- mp_image_t* mpi;
- vd_zrmjpeg_ctx_t *ctx = sh->context;
-
- if (!ctx->vo_initialized) {
- ctx->preferred_csp = guess_mjpeg_type(data, len, sh->disp_h);
- if (ctx->preferred_csp == 0) return NULL;
- mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h,
- ctx->preferred_csp);
- ctx->vo_initialized = 1;
- }
-
- mpi = mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, 0,
- sh->disp_w, sh->disp_h);
- /* abuse of mpi */
- mpi->planes[0]=(uint8_t*)data;
- mpi->planes[1]=(uint8_t*)len;
- return mpi;
-}
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