diff options
Diffstat (limited to 'libavcodec/dvdata.c')
| -rw-r--r-- | libavcodec/dvdata.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/libavcodec/dvdata.c b/libavcodec/dvdata.c index 3a135a9ac7..b29f5ce53f 100644 --- a/libavcodec/dvdata.c +++ b/libavcodec/dvdata.c @@ -2,20 +2,20 @@ * Constants for DV codec * Copyright (c) 2002 Fabrice Bellard * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg 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 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -25,6 +25,7 @@ */ #include "libavutil/rational.h" +#include "libavutil/intreadwrite.h" #include "avcodec.h" #include "dvdata.h" @@ -245,20 +246,25 @@ static const DVprofile dv_profiles[] = { } }; -const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys, +const DVprofile* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile *sys, const uint8_t* frame, unsigned buf_size) { - int i; + int i, dsf, stype; - int dsf = (frame[3] & 0x80) >> 7; + if(buf_size < DV_PROFILE_BYTES) + return NULL; - int stype = frame[80*5 + 48 + 3] & 0x1f; + dsf = (frame[3] & 0x80) >> 7; + stype = frame[80*5 + 48 + 3] & 0x1f; /* 576i50 25Mbps 4:1:1 is a special case */ if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) { return &dv_profiles[2]; } + if(codec && codec->codec_tag==AV_RL32("dvsd") && codec->width==720 && codec->height==576) + return &dv_profiles[1]; + for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++) if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype) return &dv_profiles[i]; @@ -270,6 +276,12 @@ const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys, return NULL; } +const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys, + const uint8_t* frame, unsigned buf_size) +{ + return avpriv_dv_frame_profile2(NULL, sys, frame, buf_size); +} + const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec) { int i; |