* [FFmpeg-devel] [PATCH 2/2] avcodec/hevc_parser: fix missing zero_byte at frame beginning [not found] <20231227124924.629396-1-quinkblack@foxmail.com> @ 2023-12-27 12:49 ` Zhao Zhili 2023-12-27 15:30 ` [FFmpeg-devel] [PATCH v2 " Zhao Zhili 0 siblings, 1 reply; 2+ messages in thread From: Zhao Zhili @ 2023-12-27 12:49 UTC (permalink / raw) To: ffmpeg-devel; +Cc: Zhao Zhili From: Zhao Zhili <zhilizhao@tencent.com> The start code is matched against 0x000001, zero_byte was treated as last byte of last frame rather than the beginning of next frame. --- libavcodec/hevc_parser.c | 4 ++++ tests/fate/hevc.mak | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/libavcodec/hevc_parser.c b/libavcodec/hevc_parser.c index 87270cffb4..32828c5014 100644 --- a/libavcodec/hevc_parser.c +++ b/libavcodec/hevc_parser.c @@ -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 (!buf[i - 6]) + 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 (!buf[i - 6]) + return i - 6; return i - 5; } } diff --git a/tests/fate/hevc.mak b/tests/fate/hevc.mak index b3c6792140..4889ee8237 100644 --- a/tests/fate/hevc.mak +++ b/tests/fate/hevc.mak @@ -222,7 +222,7 @@ FATE_HEVC-$(call ALLYES, HEVC_DEMUXER MOV_DEMUXER HEVC_PARSER HEVC_MP4TOANNEXB_B fate-hevc-bsf-mp4toannexb: tests/data/hevc-mp4.mov fate-hevc-bsf-mp4toannexb: CMD = md5 -i $(TARGET_PATH)/tests/data/hevc-mp4.mov -c:v copy -fflags +bitexact -f hevc fate-hevc-bsf-mp4toannexb: CMP = oneline -fate-hevc-bsf-mp4toannexb: REF = 1873662a3af1848c37e4eb25722c8df9 +fate-hevc-bsf-mp4toannexb: REF = 73019329ed7f81c24f9af67c34c640c0 fate-hevc-skiploopfilter: CMD = framemd5 -skip_loop_filter nokey -i $(TARGET_SAMPLES)/hevc-conformance/SAO_D_Samsung_5.bit -sws_flags bitexact FATE_HEVC-$(call FRAMEMD5, HEVC, HEVC, HEVC_PARSER) += fate-hevc-skiploopfilter -- 2.25.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 2+ messages in thread
* [FFmpeg-devel] [PATCH v2 2/2] avcodec/hevc_parser: fix missing zero_byte at frame beginning 2023-12-27 12:49 ` [FFmpeg-devel] [PATCH 2/2] avcodec/hevc_parser: fix missing zero_byte at frame beginning Zhao Zhili @ 2023-12-27 15:30 ` Zhao Zhili 0 siblings, 0 replies; 2+ messages in thread From: Zhao Zhili @ 2023-12-27 15:30 UTC (permalink / raw) To: ffmpeg-devel; +Cc: Zhao Zhili From: Zhao Zhili <zhilizhao@tencent.com> The start code is matched against 0x000001, zero_byte was treated as last byte of last frame rather than the beginning of next frame. --- libavcodec/hevc_parser.c | 4 ++++ tests/fate/hevc.mak | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/libavcodec/hevc_parser.c b/libavcodec/hevc_parser.c index 87270cffb4..99a4272fad 100644 --- a/libavcodec/hevc_parser.c +++ b/libavcodec/hevc_parser.c @@ -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; } } diff --git a/tests/fate/hevc.mak b/tests/fate/hevc.mak index b3c6792140..4889ee8237 100644 --- a/tests/fate/hevc.mak +++ b/tests/fate/hevc.mak @@ -222,7 +222,7 @@ FATE_HEVC-$(call ALLYES, HEVC_DEMUXER MOV_DEMUXER HEVC_PARSER HEVC_MP4TOANNEXB_B fate-hevc-bsf-mp4toannexb: tests/data/hevc-mp4.mov fate-hevc-bsf-mp4toannexb: CMD = md5 -i $(TARGET_PATH)/tests/data/hevc-mp4.mov -c:v copy -fflags +bitexact -f hevc fate-hevc-bsf-mp4toannexb: CMP = oneline -fate-hevc-bsf-mp4toannexb: REF = 1873662a3af1848c37e4eb25722c8df9 +fate-hevc-bsf-mp4toannexb: REF = 73019329ed7f81c24f9af67c34c640c0 fate-hevc-skiploopfilter: CMD = framemd5 -skip_loop_filter nokey -i $(TARGET_SAMPLES)/hevc-conformance/SAO_D_Samsung_5.bit -sws_flags bitexact FATE_HEVC-$(call FRAMEMD5, HEVC, HEVC, HEVC_PARSER) += fate-hevc-skiploopfilter -- 2.25.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-12-27 12:49 ` [FFmpeg-devel] [PATCH 2/2] avcodec/hevc_parser: fix missing zero_byte at frame beginning Zhao Zhili
2023-12-27 15:30 ` [FFmpeg-devel] [PATCH v2 " Zhao Zhili
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