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Code Issues Releases Activity

avcodec/hevc_parser: fix missing zero_byte at frame beginning

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The start code is matched against 0x000001, zero_byte was treated
as last byte of last frame rather than the beginning of next frame.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This commit is contained in:
Zhao Zhili
2023-12-27 23:30:16 +08:00
parent b7ac1f9856
commit 0f824d792d
2 changed files with 5 additions and 1 deletions
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4
libavcodec/hevc_parser.c
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@ -278,6 +278,8 @@ static int hevc_find_frame_end(AVCodecParserContext *s, const uint8_t *buf,
(nut >= 41 && nut <= 44) || (nut >= 48 && nut <= 55)) {
if (pc->frame_start_found) {
pc->frame_start_found = 0;
if (!((pc->state64 >> 6 * 8) & 0xFF))
return i - 6;
return i - 5;
}
} else if (nut <= HEVC_NAL_RASL_R ||
@ -288,6 +290,8 @@ static int hevc_find_frame_end(AVCodecParserContext *s, const uint8_t *buf,
pc->frame_start_found = 1;
} else { // First slice of next frame found
pc->frame_start_found = 0;
if (!((pc->state64 >> 6 * 8) & 0xFF))
return i - 6;
return i - 5;
}
}