diff options
| -rw-r--r-- | libavformat/avformat.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/libavformat/avformat.c b/libavformat/avformat.c index 9cacaef87d..ae79ee6ef7 100644 --- a/libavformat/avformat.c +++ b/libavformat/avformat.c @@ -875,20 +875,28 @@ const AVCodec *ff_find_decoder(AVFormatContext *s, const AVStream *st, int ff_copy_whiteblacklists(AVFormatContext *dst, const AVFormatContext *src) { +#define OFF(field) offsetof(AVFormatContext, field) + static const unsigned offsets[] = { + OFF(codec_whitelist), OFF(format_whitelist), + OFF(protocol_whitelist), OFF(protocol_blacklist), + }; +#undef OFF av_assert0(!dst->codec_whitelist && !dst->format_whitelist && !dst->protocol_whitelist && !dst->protocol_blacklist); - dst-> codec_whitelist = av_strdup(src->codec_whitelist); - dst->format_whitelist = av_strdup(src->format_whitelist); - dst->protocol_whitelist = av_strdup(src->protocol_whitelist); - dst->protocol_blacklist = av_strdup(src->protocol_blacklist); - if ( (src-> codec_whitelist && !dst-> codec_whitelist) - || (src-> format_whitelist && !dst-> format_whitelist) - || (src->protocol_whitelist && !dst->protocol_whitelist) - || (src->protocol_blacklist && !dst->protocol_blacklist)) { - av_log(dst, AV_LOG_ERROR, "Failed to duplicate black/whitelist\n"); - return AVERROR(ENOMEM); + for (unsigned i = 0; i < FF_ARRAY_ELEMS(offsets); i++) { + const char *src_str = *(char *const*)((const char*)src + offsets[i]); + + if (src_str) { + char *dst_str = av_strdup(src_str); + if (!dst_str) { + av_log(dst, AV_LOG_ERROR, "Failed to duplicate black/whitelist\n"); + return AVERROR(ENOMEM); + } + + *(char **)((char*)dst + offsets[i]) = dst_str; + } } return 0; } |