From 8893f7d815db4efed797101d7a94718554990706 Mon Sep 17 00:00:00 2001 From: Carl Eugen Hoyos Date: Thu, 4 Aug 2011 11:06:43 +0200 Subject: [PATCH] Fix possible crash when decoding mpeg streams. This reverts 2cf8355f98681bdd726b739008acd5483f82f8d7, fixes ticket 329. --- ffmpeg.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/ffmpeg.c b/ffmpeg.c index 857e02292e..ab628b2cbc 100644 --- a/ffmpeg.c +++ b/ffmpeg.c @@ -345,6 +345,7 @@ typedef struct AVInputFile { int eof_reached; /* true if eof reached */ int ist_index; /* index of first stream in ist_table */ int buffer_size; /* current total buffer size */ + int nb_streams; } AVInputFile; #if HAVE_TERMIOS_H @@ -2046,7 +2047,7 @@ static int transcode(AVFormatContext **output_files, int si = stream_maps[i].stream_index; if (fi < 0 || fi > nb_input_files - 1 || - si < 0 || si > input_files[fi].ctx->nb_streams - 1) { + si < 0 || si > input_files[fi].nb_streams - 1) { fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si); ret = AVERROR(EINVAL); goto fail; @@ -2732,7 +2733,7 @@ static int transcode(AVFormatContext **output_files, } /* the following test is needed in case new streams appear dynamically in stream : we ignore them */ - if (pkt.stream_index >= input_files[file_index].ctx->nb_streams) + if (pkt.stream_index >= input_files[file_index].nb_streams) goto discard_packet; ist_index = input_files[file_index].ist_index + pkt.stream_index; ist = &input_streams[ist_index]; @@ -3469,6 +3470,7 @@ static int opt_input_file(const char *opt, const char *filename) input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1); input_files[nb_input_files - 1].ctx = ic; input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams; + input_files[nb_input_files - 1].nb_streams = ic->nb_streams; top_field_first = -1; video_channel = 0;