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232 lines
5.3 KiB
232 lines
5.3 KiB
/*
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* probe_stream.c
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*
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* Copyright (C) Thomas Oestreich - June 2001
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*
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* This file is part of transcode, a video stream processing tool
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*
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* transcode is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* transcode is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include "transcode.h"
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#include "tcinfo.h"
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#include "ioaux.h"
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#include "probe_stream.h"
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#include "libtc/libtc.h"
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#include "libtc/ratiocodes.h"
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static ProbeInfo probe_info;
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static void guess_asr(ProbeInfo *info)
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{
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if (info != NULL && info->width != 0 && info->height != 0) {
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double r = (double)info->width/(double)info->height;
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tc_asr_code_from_value(&(info->asr), r);
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}
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}
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void probe_file(info_t *ipipe)
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{
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switch (ipipe->magic) {
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case TC_MAGIC_AVI:
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probe_avi(ipipe);
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break;
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case TC_MAGIC_TIFF1: /* image formats (multiple fallbacks) */
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case TC_MAGIC_TIFF2:
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case TC_MAGIC_JPEG:
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case TC_MAGIC_BMP:
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case TC_MAGIC_PNG:
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case TC_MAGIC_GIF:
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case TC_MAGIC_PPM:
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case TC_MAGIC_PGM:
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case TC_MAGIC_SGI:
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probe_im(ipipe); /* ImageMagick serve all */
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break;
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case TC_MAGIC_MXF:
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probe_mxf(ipipe);
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break;
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case TC_MAGIC_OGG:
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probe_ogg(ipipe);
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break;
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case TC_MAGIC_CDXA:
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probe_pes(ipipe);
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break;
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case TC_MAGIC_MPEG_PS: /* MPEG Program Stream */
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case TC_MAGIC_VOB: /* backward compatibility fallback */
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probe_pes(ipipe);
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break;
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case TC_MAGIC_MPEG_ES: /* MPEG Elementary Stream */
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case TC_MAGIC_M2V: /* backward compatibility fallback */
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probe_pes(ipipe);
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break;
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case TC_MAGIC_MPEG_PES:/* MPEG Packetized Elementary Stream */
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case TC_MAGIC_MPEG: /* backward compatibility fallback */
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probe_pes(ipipe);
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break;
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case TC_MAGIC_YUV4MPEG:
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probe_yuv(ipipe);
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break;
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case TC_MAGIC_NUV:
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probe_nuv(ipipe);
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break;
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case TC_MAGIC_MOV:
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probe_mov(ipipe);
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break;
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case TC_MAGIC_WAV:
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probe_wav(ipipe);
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break;
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case TC_MAGIC_DTS:
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probe_dts(ipipe);
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break;
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case TC_MAGIC_AC3:
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probe_ac3(ipipe);
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break;
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case TC_MAGIC_MP3:
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case TC_MAGIC_MP3_2:
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case TC_MAGIC_MP3_2_5:
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case TC_MAGIC_MP2:
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probe_mp3(ipipe);
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break;
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case TC_MAGIC_DV_PAL:
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case TC_MAGIC_DV_NTSC:
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probe_dv(ipipe);
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break;
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case TC_MAGIC_PV3:
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probe_pv3(ipipe);
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break;
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case TC_MAGIC_PVN:
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probe_pvn(ipipe);
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break;
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default:
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/* libavcodec/libavformat it's a catchall too */
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probe_ffmpeg(ipipe);
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}
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return;
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}
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void probe_stream(info_t *ipipe)
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{
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verbose = ipipe->verbose;
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ipipe->probe_info = &probe_info;
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ipipe->probe = 1;
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/* data structure will be filled by subroutines */
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memset(&probe_info, 0, sizeof(ProbeInfo));
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probe_info.magic = ipipe->magic;
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/* ------------------------------------------------------------
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* check file type/magic and take action to probe for contents
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* ------------------------------------------------------------*/
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/* not-plain-old-file stuff */
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switch (ipipe->magic) {
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case TC_MAGIC_MPLAYER:
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probe_mplayer(ipipe);
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break;
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case TC_MAGIC_VNC:
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probe_vnc(ipipe);
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break;
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case TC_MAGIC_V4L_VIDEO:
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case TC_MAGIC_V4L_AUDIO:
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probe_v4l(ipipe);
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break;
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case TC_MAGIC_BKTR_VIDEO:
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probe_bktr(ipipe);
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break;
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case TC_MAGIC_SUNAU_AUDIO:
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probe_sunau(ipipe);
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break;
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case TC_MAGIC_BSDAV:
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probe_bsdav(ipipe);
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break;
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case TC_MAGIC_OSS_AUDIO:
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probe_oss(ipipe);
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break;
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case TC_MAGIC_DVD:
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case TC_MAGIC_DVD_PAL:
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case TC_MAGIC_DVD_NTSC:
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probe_dvd(ipipe);
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break;
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case TC_MAGIC_XML:
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probe_xml(ipipe);
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break;
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case TC_MAGIC_X11:
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probe_x11(ipipe);
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break;
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default: /* fallback to P.O.D. file... */
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probe_file(ipipe);
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break; /* for coherency */
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}
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if (ipipe->magic == TC_MAGIC_XML) {
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ipipe->probe_info->magic_xml = TC_MAGIC_XML;
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/*
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* used in transcode to load import_xml and to have
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* the correct type of the video/audio
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*/
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} else {
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ipipe->probe_info->magic_xml = ipipe->probe_info->magic;
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}
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if (!ipipe->probe_info->asr) {
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guess_asr(ipipe->probe_info);
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}
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return;
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}
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/*************************************************************************/
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/*
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* Local variables:
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* c-file-style: "stroustrup"
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* c-file-offsets: ((case-label . *) (statement-case-intro . *))
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* indent-tabs-mode: nil
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* End:
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*
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* vim: expandtab shiftwidth=4:
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*/
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