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[89.74.12.251]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-521f35ba80fsm307239e87.93.2024.05.09.07.02.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 May 2024 07:02:52 -0700 (PDT) From: =?UTF-8?q?Kacper=20Michaj=C5=82ow?= <kasper93@gmail.com> To: ffmpeg-devel@ffmpeg.org Date: Thu, 9 May 2024 16:02:09 +0200 Message-ID: <20240509140211.1296-1-kasper93@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] avformat/data_uri: Fix base64 decode buffer size calculation X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches <ffmpeg-devel.ffmpeg.org> List-Unsubscribe: <https://ffmpeg.org/mailman/options/ffmpeg-devel>, <mailto:ffmpeg-devel-request@ffmpeg.org?subject=unsubscribe> List-Archive: <https://ffmpeg.org/pipermail/ffmpeg-devel> List-Post: <mailto:ffmpeg-devel@ffmpeg.org> List-Help: <mailto:ffmpeg-devel-request@ffmpeg.org?subject=help> List-Subscribe: <https://ffmpeg.org/mailman/listinfo/ffmpeg-devel>, <mailto:ffmpeg-devel-request@ffmpeg.org?subject=subscribe> Reply-To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> Cc: =?UTF-8?q?Kacper=20Michaj=C5=82ow?= <kasper93@gmail.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org> Archived-At: <https://master.gitmailbox.com/ffmpegdev/20240509140211.1296-1-kasper93@gmail.com/> List-Archive: <https://master.gitmailbox.com/ffmpegdev/> List-Post: <mailto:ffmpegdev@gitmailbox.com> QWxzbyByZWplY3QgaW5wdXQgaWYgaXQgaXMgdG9vIHNob3J0LgoKRm91bmQgYnkgT1NTLUZ1enou CgpTaWduZWQtb2ZmLWJ5OiBLYWNwZXIgTWljaGFqxYJvdyA8a2FzcGVyOTNAZ21haWwuY29tPgot LS0KIGxpYmF2Zm9ybWF0L2RhdGFfdXJpLmMgfCA0ICsrLS0KIDEgZmlsZSBjaGFuZ2VkLCAyIGlu c2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvbGliYXZmb3JtYXQvZGF0 YV91cmkuYyBiL2xpYmF2Zm9ybWF0L2RhdGFfdXJpLmMKaW5kZXggMzg2OGExOTYzMC4uZjk3ZWNi YWIzNyAxMDA2NDQKLS0tIGEvbGliYXZmb3JtYXQvZGF0YV91cmkuYworKysgYi9saWJhdmZvcm1h dC9kYXRhX3VyaS5jCkBAIC03MywxMSArNzMsMTEgQEAgc3RhdGljIGF2X2NvbGQgaW50IGRhdGFf b3BlbihVUkxDb250ZXh0ICpoLCBjb25zdCBjaGFyICp1cmksIGludCBmbGFncykKICAgICBkYXRh Kys7CiAgICAgaW5fc2l6ZSA9IHN0cmxlbihkYXRhKTsKICAgICBpZiAoYmFzZTY0KSB7Ci0gICAg ICAgIHNpemVfdCBvdXRfc2l6ZSA9IDMgKiAoaW5fc2l6ZSAvIDQpICsgMTsKKyAgICAgICAgc2l6 ZV90IG91dF9zaXplID0gQVZfQkFTRTY0X0RFQ09ERV9TSVpFKGluX3NpemUpOwogCiAgICAgICAg IGlmIChvdXRfc2l6ZSA+IElOVF9NQVggfHwgIShkZGF0YSA9IGF2X21hbGxvYyhvdXRfc2l6ZSkp KQogICAgICAgICAgICAgcmV0dXJuIEFWRVJST1IoRU5PTUVNKTsKLSAgICAgICAgaWYgKChyZXQg PSBhdl9iYXNlNjRfZGVjb2RlKGRkYXRhLCBkYXRhLCBvdXRfc2l6ZSkpIDwgMCkgeworICAgICAg ICBpZiAoIW91dF9zaXplIHx8IChyZXQgPSBhdl9iYXNlNjRfZGVjb2RlKGRkYXRhLCBkYXRhLCBv dXRfc2l6ZSkpIDwgMCkgewogICAgICAgICAgICAgYXZfZnJlZShkZGF0YSk7CiAgICAgICAgICAg ICBhdl9sb2coaCwgQVZfTE9HX0VSUk9SLCAiSW52YWxpZCBiYXNlNjQgaW4gVVJJXG4iKTsKICAg ICAgICAgICAgIHJldHVybiByZXQ7Ci0tIAoyLjQzLjAKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCmZmbXBlZy1kZXZlbCBtYWlsaW5nIGxpc3QKZmZtcGVn LWRldmVsQGZmbXBlZy5vcmcKaHR0cHM6Ly9mZm1wZWcub3JnL21haWxtYW4vbGlzdGluZm8vZmZt cGVnLWRldmVsCgpUbyB1bnN1YnNjcmliZSwgdmlzaXQgbGluayBhYm92ZSwgb3IgZW1haWwKZmZt cGVnLWRldmVsLXJlcXVlc3RAZmZtcGVnLm9yZyB3aXRoIHN1YmplY3QgInVuc3Vic2NyaWJlIi4K