From patchwork Sat Oct 10 15:41:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 22834 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id 6929644A024 for ; Sat, 10 Oct 2020 18:48:53 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 510C668BA85; Sat, 10 Oct 2020 18:48:53 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe01-2.mx.upcmail.net (vie01a-dmta-pe01-2.mx.upcmail.net [62.179.121.155]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 1C42868B844 for ; Sat, 10 Oct 2020 18:48:47 +0300 (EEST) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-pe01.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1kRH0u-0003Mw-0G for ffmpeg-devel@ffmpeg.org; Sat, 10 Oct 2020 17:42:28 +0200 Received: from localhost ([213.47.68.29]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id RGzvkidQRIr7GRGzvknD4W; Sat, 10 Oct 2020 17:41:28 +0200 X-Env-Mailfrom: michael@niedermayer.cc X-Env-Rcptto: ffmpeg-devel@ffmpeg.org X-SourceIP: 213.47.68.29 X-CNFS-Analysis: v=2.3 cv=QN4WuTDL c=1 sm=1 tr=0 a=2hcxjKEKjp0CzLx6oWAm4g==:117 a=2hcxjKEKjp0CzLx6oWAm4g==:17 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=ZZnuYtJkoWoA:10 a=tNTeGuMrPo1jOUFywO4A:9 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sat, 10 Oct 2020 17:41:26 +0200 Message-Id: <20201010154127.12792-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 X-CMAE-Envelope: MS4wfI+IvAIPMELZGjJXDyc+3DoZiAWgUU2hioQztZXzr37hn2y/dwcjR0gVqom+sYGD7Daexp0brJPZKDstoSWqHtJTcprkH7YZgHFVquFflW1PmasQT4S5 1ZmAxmtxXRQZKAbnfq9JmEbiJ6QynoXs4b+t7PgpldNyU3q+2fHif+GC Subject: [FFmpeg-devel] [PATCH 1/2] Add support for building fuzzer tools for an individual demuxer X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Signed-off-by: Michael Niedermayer --- Makefile | 4 ++++ tools/Makefile | 3 +++ tools/target_dem_fuzzer.c | 11 ++++++++++- 3 files changed, 17 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 6a0dabfc5a..c8b548d126 100644 --- a/Makefile +++ b/Makefile @@ -53,6 +53,9 @@ target_dec_%_fuzzer$(EXESUF): target_dec_%_fuzzer.o $(FF_DEP_LIBS) tools/target_bsf_%_fuzzer$(EXESUF): tools/target_bsf_%_fuzzer.o $(FF_DEP_LIBS) $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH) +target_dem_%_fuzzer$(EXESUF): target_dem_%_fuzzer.o $(FF_DEP_LIBS) + $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH) + tools/target_dem_fuzzer$(EXESUF): tools/target_dem_fuzzer.o $(FF_DEP_LIBS) $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH) @@ -63,6 +66,7 @@ tools/sofa2wavs$(EXESUF): ELIBS = $(FF_EXTRALIBS) tools/uncoded_frame$(EXESUF): $(FF_DEP_LIBS) tools/uncoded_frame$(EXESUF): ELIBS = $(FF_EXTRALIBS) tools/target_dec_%_fuzzer$(EXESUF): $(FF_DEP_LIBS) +tools/target_dem_%_fuzzer$(EXESUF): $(FF_DEP_LIBS) CONFIGURABLE_COMPONENTS = \ $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c)) \ diff --git a/tools/Makefile b/tools/Makefile index 88d64ce6d2..48fa131eeb 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -8,6 +8,9 @@ tools/target_dec_%_fuzzer.o: tools/target_dec_fuzzer.c tools/target_bsf_%_fuzzer.o: tools/target_bsf_fuzzer.c $(COMPILE_C) -DFFMPEG_BSF=$* +tools/target_dem_%_fuzzer.o: tools/target_dem_fuzzer.c + $(COMPILE_C) -DFFMPEG_DEMUXER=$* -DIO_FLAT=0 + tools/target_dem_fuzzer.o: tools/target_dem_fuzzer.c $(COMPILE_C) -DIO_FLAT=1 diff --git a/tools/target_dem_fuzzer.c b/tools/target_dem_fuzzer.c index eefb5c5fa3..b13ab526e4 100644 --- a/tools/target_dem_fuzzer.c +++ b/tools/target_dem_fuzzer.c @@ -34,6 +34,8 @@ typedef struct IOContext { int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size); +extern AVInputFormat * demuxer_list[]; + static void error(const char *err) { fprintf(stderr, "%s", err); @@ -103,8 +105,15 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { static int c; int seekable = 0; int ret; + AVInputFormat *fmt = NULL; if (!c) { +#ifdef FFMPEG_DEMUXER +#define DEMUXER_SYMBOL0(DEMUXER) ff_##DEMUXER##_demuxer +#define DEMUXER_SYMBOL(DEMUXER) DEMUXER_SYMBOL0(DEMUXER) + extern AVInputFormat DEMUXER_SYMBOL(FFMPEG_DEMUXER); + fmt = &DEMUXER_SYMBOL(FFMPEG_DEMUXER); +#endif av_register_all(); avcodec_register_all(); av_log_set_level(AV_LOG_PANIC); @@ -166,7 +175,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { avfmt->pb = fuzzed_pb; - ret = avformat_open_input(&avfmt, filename, NULL, NULL); + ret = avformat_open_input(&avfmt, filename, fmt, NULL); if (ret < 0) { av_freep(&fuzzed_pb->buffer); av_freep(&fuzzed_pb);