From 2f63440c59bf8c4a2e90280e23e8cadb235a42e6 Mon Sep 17 00:00:00 2001 From: Dustin Brody Date: Sat, 6 Aug 2011 04:42:34 +0000 Subject: lavf: add support for error_recognition, use it in avidec, and bump minor API version Signed-off-by: Anton Khirnov --- libavformat/avformat.h | 8 ++++++++ libavformat/avidec.c | 6 ++++-- libavformat/options.c | 3 +++ libavformat/version.h | 2 +- 4 files changed, 16 insertions(+), 3 deletions(-) diff --git a/libavformat/avformat.h b/libavformat/avformat.h index 2f68abab25..957039f64e 100644 --- a/libavformat/avformat.h +++ b/libavformat/avformat.h @@ -854,6 +854,14 @@ typedef struct AVFormatContext { * decoding: number of frames used to probe fps */ int fps_probe_size; + + /** + * Error recognition; higher values will detect more errors but may + * misdetect some more or less valid parts as errors. + * - encoding: unused + * - decoding: Set by user. + */ + int error_recognition; } AVFormatContext; typedef struct AVPacketList { diff --git a/libavformat/avidec.c b/libavformat/avidec.c index 0ea093c6d7..8c0ef13b14 100644 --- a/libavformat/avidec.c +++ b/libavformat/avidec.c @@ -667,8 +667,9 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap) break; case MKTAG('i', 'n', 'd', 'x'): i= avio_tell(pb); - if(pb->seekable && !(s->flags & AVFMT_FLAG_IGNIDX)){ - read_braindead_odml_indx(s, 0); + if(pb->seekable && !(s->flags & AVFMT_FLAG_IGNIDX) && + read_braindead_odml_indx(s, 0) < 0 && s->error_recognition >= FF_ER_EXPLODE){ + goto fail; } avio_seek(pb, i+size, SEEK_SET); break; @@ -706,6 +707,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap) if(size > 1000000){ av_log(s, AV_LOG_ERROR, "Something went wrong during header parsing, " "I will ignore it and try to continue anyway.\n"); + if (s->error_recognition >= FF_ER_EXPLODE) goto fail; avi->movi_list = avio_tell(pb) - 4; avi->movi_end = avio_size(pb); goto end_of_header; diff --git a/libavformat/options.c b/libavformat/options.c index 961162876f..3ca8c83480 100644 --- a/libavformat/options.c +++ b/libavformat/options.c @@ -87,6 +87,9 @@ static const AVOption options[]={ {"fdebug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, INT_MAX, E|D, "fdebug"}, {"ts", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_FDEBUG_TS }, INT_MIN, INT_MAX, E|D, "fdebug"}, {"max_delay", "maximum muxing or demuxing delay in microseconds", OFFSET(max_delay), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, E|D}, +{"fer", "set error detection aggressivity", OFFSET(error_recognition), FF_OPT_TYPE_INT, {.dbl = FF_ER_CAREFUL }, INT_MIN, INT_MAX, D, "fer"}, +{"careful", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_ER_CAREFUL }, INT_MIN, INT_MAX, D, "fer"}, +{"explode", "abort decoding on error recognition", 0, FF_OPT_TYPE_CONST, {.dbl = FF_ER_EXPLODE }, INT_MIN, INT_MAX, D, "fer"}, {"fpsprobesize", "number of frames used to probe fps", OFFSET(fps_probe_size), FF_OPT_TYPE_INT, {.dbl = -1}, -1, INT_MAX-1, D}, {NULL}, }; diff --git a/libavformat/version.h b/libavformat/version.h index bb12b5137a..4473717fd7 100644 --- a/libavformat/version.h +++ b/libavformat/version.h @@ -24,7 +24,7 @@ #include "libavutil/avutil.h" #define LIBAVFORMAT_VERSION_MAJOR 53 -#define LIBAVFORMAT_VERSION_MINOR 3 +#define LIBAVFORMAT_VERSION_MINOR 4 #define LIBAVFORMAT_VERSION_MICRO 0 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ -- cgit v1.2.3