diff options
Diffstat (limited to 'debian/transcode/transcode-1.1.7/import/extract_lzo.c')
| -rw-r--r-- | debian/transcode/transcode-1.1.7/import/extract_lzo.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/debian/transcode/transcode-1.1.7/import/extract_lzo.c b/debian/transcode/transcode-1.1.7/import/extract_lzo.c new file mode 100644 index 00000000..a7a0af97 --- /dev/null +++ b/debian/transcode/transcode-1.1.7/import/extract_lzo.c @@ -0,0 +1,133 @@ +/* + * extract_lzo.c + * + * Copyright (C) Tilmann Bitterberg - 2003 + * + * This file is part of transcode, a video stream processing tool + * + * transcode 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, or (at your option) + * any later version. + * + * transcode 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 GNU Make; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include "transcode.h" +#include "libtc/libtc.h" +#include "tcinfo.h" + +#include "ioaux.h" +#include "avilib/avilib.h" +#include "tc.h" + +#ifdef HAVE_LZO + +#include "libtc/tc_lzo.h" + +#define BUFFER_SIZE SIZE_RGB_FRAME<<1 + +inline static void long2str(long a, unsigned char *b) +{ + b[0] = (a&0xff000000)>>24; + b[1] = (a&0x00ff0000)>>16; + b[2] = (a&0x0000ff00)>>8; + b[3] = (a&0x000000ff); +} + +void extract_lzo(info_t *ipipe) +{ + + avi_t *avifile=NULL; + char *video; + + int key, error=0; + + long frames, bytes, n; + + switch(ipipe->magic) { + + case TC_MAGIC_AVI: + + // scan file + if (ipipe->nav_seek_file) { + if(NULL == (avifile = AVI_open_indexfd(ipipe->fd_in,0,ipipe->nav_seek_file))) { + AVI_print_error("AVI open"); + import_exit(1); + } + } else { + if(NULL == (avifile = AVI_open_fd(ipipe->fd_in,1))) { + AVI_print_error("AVI open"); + import_exit(1); + } + } + + // read video info; + + frames = AVI_video_frames(avifile); + if (ipipe->frame_limit[1] < frames) + { + frames=ipipe->frame_limit[1]; + } + + + if(ipipe->verbose & TC_STATS) + tc_log_msg(__FILE__, "%ld video frames", frames); + + // allocate space, assume max buffer size + if((video = tc_zalloc(SIZE_RGB_FRAME))==NULL) { + tc_log_msg(__FILE__, "out of memory"); + error=1; + break; + } + + (int)AVI_set_video_position(avifile,ipipe->frame_limit[0]); + for (n=ipipe->frame_limit[0]; n<=frames; ++n) { + // video + if((bytes = AVI_read_frame(avifile, video, &key))<0) { + error=1; + break; + } + if(tc_pwrite(ipipe->fd_out, video, bytes)!=bytes) { + error=1; + break; + } + } + + free(video); + + break; + + case TC_MAGIC_RAW: + default: + + if(ipipe->magic == TC_MAGIC_UNKNOWN) + tc_log_warn(__FILE__, "no file type specified, assuming %s", + filetype(TC_MAGIC_RAW)); + + error = tc_preadwrite(ipipe->fd_in, ipipe->fd_out); + if (error < 0) + error = 1; + + break; + } + + import_exit(error); +} + +#else +void extract_lzo(info_t *ipipe) +{ + tc_log_error(__FILE__, "No support for LZO configured -- exiting"); + import_exit(1); +} +#endif + |
