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| author | Tomas Härdin <git@haerdin.se> | 2022-05-20 14:50:00 +0200 |
|---|---|---|
| committer | Tomas Härdin <git@haerdin.se> | 2022-06-10 10:50:12 +0200 |
| commit | cb204f007be4b0cb32ec32b08f2fdfd798d339ea (patch) | |
| tree | 35c40814ed47084bd67cb187398347cd2b97056d | |
| parent | ffc2d956746eeba88b787d985a44f0b77b9d9a15 (diff) | |
| download | ffmpeg-cb204f007be4b0cb32ec32b08f2fdfd798d339ea.tar.gz | |
libavcodec/jpeg2000_parser: Localize m->bytes_read
Another 6%
| -rw-r--r-- | libavcodec/jpeg2000_parser.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libavcodec/jpeg2000_parser.c b/libavcodec/jpeg2000_parser.c index 7725d4d252..e96efc28ed 100644 --- a/libavcodec/jpeg2000_parser.c +++ b/libavcodec/jpeg2000_parser.c @@ -95,6 +95,7 @@ static int find_frame_end(JPEG2000ParserContext *m, const uint8_t *buf, int buf_ ParseContext *pc= &m->pc; int i; uint64_t state64 = pc->state64; + uint64_t bytes_read = m->bytes_read; if (buf_size == 0) { return 0; @@ -102,7 +103,7 @@ static int find_frame_end(JPEG2000ParserContext *m, const uint8_t *buf, int buf_ for (i = 0; i < buf_size; i++) { state64 = state64 << 8 | buf[i]; - m->bytes_read++; + bytes_read++; if (m->skip_bytes) { // handle long skips if (m->skip_bytes > 8) { @@ -112,7 +113,7 @@ static int find_frame_end(JPEG2000ParserContext *m, const uint8_t *buf, int buf_ if (skip > 0) { m->skip_bytes -= skip; i += skip; - m->bytes_read += skip; + bytes_read += skip; } } m->skip_bytes--; @@ -141,7 +142,7 @@ static int find_frame_end(JPEG2000ParserContext *m, const uint8_t *buf, int buf_ } m->fheader_read--; } - if ((state64 & 0xFFFFFFFF) == 0x0000000C && m->bytes_read >= 3) { // Indicates start of JP2 file. Check signature next. + if ((state64 & 0xFFFFFFFF) == 0x0000000C && bytes_read >= 3) { // Indicates start of JP2 file. Check signature next. m->fheader_read = 8; } else if ((state64 & 0xFFFF) == 0xFF4F) { m->in_codestream = 1; @@ -180,6 +181,7 @@ static int find_frame_end(JPEG2000ParserContext *m, const uint8_t *buf, int buf_ } pc->state64 = state64; + m->bytes_read = bytes_read; return END_NOT_FOUND; } |