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h264_metadata: Avoid integer overflow in bitrate

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Fixes CID #1439664.
This commit is contained in:
Mark Thompson 2018-09-24 22:45:50 +01:00
parent 581b4125aa
commit 321294adb7
1 changed files with 2 additions and 2 deletions
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4
libavcodec/h264_metadata_bsf.c
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@ -226,10 +226,10 @@ static int h264_metadata_update_sps(AVBSFContext *bsf,
if (sps->vui.nal_hrd_parameters_present_flag) { if (sps->vui.nal_hrd_parameters_present_flag) {
bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) * bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) *
(1 << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6)); (INT64_C(1) << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6));
} else if (sps->vui.vcl_hrd_parameters_present_flag) { } else if (sps->vui.vcl_hrd_parameters_present_flag) {
bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) * bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) *
(1 << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6)); (INT64_C(1) << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6));
// Adjust for VCL vs. NAL limits. // Adjust for VCL vs. NAL limits.
bit_rate = bit_rate * 6 / 5; bit_rate = bit_rate * 6 / 5;
} else { } else {