From d2a25dc2bfcd3b0372f0aaa4b3589057d9657c6f Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 26 Jun 2024 13:40:53 +0200 Subject: [PATCH] add tools/target_swr_fuzzer Signed-off-by: Michael Niedermayer --- Makefile | 2 + tools/Makefile | 3 + tools/target_swr_fuzzer.c | 146 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 151 insertions(+) create mode 100644 tools/target_swr_fuzzer.c diff --git a/Makefile b/Makefile index 4c3af09fec..b350d7748f 100644 --- a/Makefile +++ b/Makefile @@ -70,6 +70,8 @@ tools/target_io_dem_fuzzer$(EXESUF): tools/target_io_dem_fuzzer.o $(FF_DEP_LIBS) tools/target_sws_fuzzer$(EXESUF): tools/target_sws_fuzzer.o $(FF_DEP_LIBS) $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH) +tools/target_swr_fuzzer$(EXESUF): tools/target_swr_fuzzer.o $(FF_DEP_LIBS) + $(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH) tools/enum_options$(EXESUF): ELIBS = $(FF_EXTRALIBS) tools/enum_options$(EXESUF): $(FF_DEP_LIBS) diff --git a/tools/Makefile b/tools/Makefile index 2a11fa0ae6..7ae6e3cb75 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -23,6 +23,9 @@ tools/target_io_dem_fuzzer.o: tools/target_dem_fuzzer.c tools/target_sws_fuzzer.o: tools/target_sws_fuzzer.c $(COMPILE_C) +tools/target_swr_fuzzer.o: tools/target_swr_fuzzer.c + $(COMPILE_C) + tools/enc_recon_frame_test$(EXESUF): tools/decode_simple.o tools/venc_data_dump$(EXESUF): tools/decode_simple.o tools/scale_slice_test$(EXESUF): tools/decode_simple.o diff --git a/tools/target_swr_fuzzer.c b/tools/target_swr_fuzzer.c new file mode 100644 index 0000000000..f2d8ec49c0 --- /dev/null +++ b/tools/target_swr_fuzzer.c @@ -0,0 +1,146 @@ +/* + * Copyright (c) 2024 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * 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. + * + * 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" +#include "libavutil/avassert.h" +#include "libavutil/avstring.h" +#include "libavutil/cpu.h" +#include "libavutil/imgutils.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/mem.h" +#include "libavutil/opt.h" + +#include "libavcodec/bytestream.h" + +#include "libswresample/swresample.h" + +#define SWR_CH_MAX 32 + +int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size); + +static const enum AVSampleFormat formats[] = { + AV_SAMPLE_FMT_U8, + AV_SAMPLE_FMT_U8P, + AV_SAMPLE_FMT_S16, + AV_SAMPLE_FMT_S16P, + AV_SAMPLE_FMT_S32, + AV_SAMPLE_FMT_S32P, + AV_SAMPLE_FMT_FLT, + AV_SAMPLE_FMT_FLTP, + AV_SAMPLE_FMT_DBL, + AV_SAMPLE_FMT_DBLP, +}; + +static const AVChannelLayout layouts[]={ + AV_CHANNEL_LAYOUT_MONO , + AV_CHANNEL_LAYOUT_STEREO , + AV_CHANNEL_LAYOUT_2_1 , + AV_CHANNEL_LAYOUT_SURROUND , + AV_CHANNEL_LAYOUT_4POINT0 , + AV_CHANNEL_LAYOUT_2_2 , + AV_CHANNEL_LAYOUT_QUAD , + AV_CHANNEL_LAYOUT_5POINT0 , + AV_CHANNEL_LAYOUT_5POINT1 , + AV_CHANNEL_LAYOUT_5POINT0_BACK , + AV_CHANNEL_LAYOUT_5POINT1_BACK , + AV_CHANNEL_LAYOUT_7POINT0 , + AV_CHANNEL_LAYOUT_7POINT1 , + AV_CHANNEL_LAYOUT_7POINT1_WIDE , + AV_CHANNEL_LAYOUT_22POINT2 , + AV_CHANNEL_LAYOUT_5POINT1POINT2_BACK , +}; + +int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { + struct SwrContext * swr= NULL; + AVChannelLayout in_ch_layout = AV_CHANNEL_LAYOUT_MONO, out_ch_layout = AV_CHANNEL_LAYOUT_MONO; + enum AVSampleFormat in_sample_fmt = AV_SAMPLE_FMT_S16P; + enum AVSampleFormat out_sample_fmt = AV_SAMPLE_FMT_S16P; + int in_sample_rate = 44100; + int out_sample_rate = 44100; + int in_ch_count, out_ch_count; + char in_layout_string[256]; + char out_layout_string[256]; + uint8_t * ain[SWR_CH_MAX]; + uint8_t *aout[SWR_CH_MAX]; + uint8_t *out_data; + int in_sample_nb; + int out_sample_nb = size; + int count; + + if (size > 128) { + GetByteContext gbc; + int64_t flags64; + + size -= 128; + bytestream2_init(&gbc, data + size, 128); + in_sample_rate = bytestream2_get_le16(&gbc) + 1; + out_sample_rate = bytestream2_get_le16(&gbc) + 1; + in_sample_fmt = formats[bytestream2_get_byte(&gbc) % FF_ARRAY_ELEMS(formats)]; + out_sample_fmt = formats[bytestream2_get_byte(&gbc) % FF_ARRAY_ELEMS(formats)]; + av_channel_layout_copy(& in_ch_layout, &layouts[bytestream2_get_byte(&gbc) % FF_ARRAY_ELEMS(layouts)]); + av_channel_layout_copy(&out_ch_layout, &layouts[bytestream2_get_byte(&gbc) % FF_ARRAY_ELEMS(layouts)]); + + out_sample_nb = bytestream2_get_le32(&gbc); + + flags64 = bytestream2_get_le64(&gbc); + if (flags64 & 0x10) + av_force_cpu_flags(0); + } + + in_ch_count= in_ch_layout.nb_channels; + out_ch_count= out_ch_layout.nb_channels; + av_channel_layout_describe(& in_ch_layout, in_layout_string, sizeof( in_layout_string)); + av_channel_layout_describe(&out_ch_layout, out_layout_string, sizeof(out_layout_string)); + + fprintf(stderr, "%s %d %s -> %s %d %s\n", + av_get_sample_fmt_name( in_sample_fmt), in_sample_rate, in_layout_string, + av_get_sample_fmt_name(out_sample_fmt), out_sample_rate, out_layout_string); + + if (swr_alloc_set_opts2(&swr, &out_ch_layout, out_sample_fmt, out_sample_rate, + &in_ch_layout, in_sample_fmt, in_sample_rate, + 0, 0) < 0) { + fprintf(stderr, "Failed swr_alloc_set_opts2()\n"); + goto end; + } + + if (swr_init(swr) < 0) { + fprintf(stderr, "Failed swr_init()\n"); + goto end; + } + + in_sample_nb = size / (in_ch_count * av_get_bytes_per_sample(in_sample_fmt)); + out_sample_nb = out_sample_nb % (av_rescale(in_sample_nb, 2*out_sample_rate, in_sample_rate) + 1); + + out_data = av_malloc(out_sample_nb * out_ch_count * av_get_bytes_per_sample(out_sample_fmt)); + if (!out_data) + goto end; + + av_samples_fill_arrays(ain , NULL, data, in_ch_count, in_sample_nb, in_sample_fmt, 1); + av_samples_fill_arrays(aout, NULL, out_data, out_ch_count, out_sample_nb, out_sample_fmt, 1); + + count = swr_convert(swr, aout, out_sample_nb, (const uint8_t **)ain, in_sample_nb); + + av_freep(&out_data); + +end: + swr_free(&swr); + + return 0; +}