ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinha...@outlook.com> | Fri Jul 4 14:31:13 2025 +0200| [ba2c9acedb13e32c5622cb5d49657b34940088bc] | committer: Andreas Rheinhardt
avcodec/get_bits: Remove GetBitContext.buffer_end It is unused. Furthermore, this automatically fixes the issue that init_get_bits() failure would lead to NULL + 0 (when setting buffer_end) which is UB before C23. This happened in the fic-avi and fic-avi-skip_cursor FATE-tests. This saved 7296B of .text here. Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ba2c9acedb13e32c5622cb5d49657b34940088bc --- libavcodec/get_bits.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/libavcodec/get_bits.h b/libavcodec/get_bits.h index c64540cf95..80a77f0ae3 100644 --- a/libavcodec/get_bits.h +++ b/libavcodec/get_bits.h @@ -107,7 +107,7 @@ typedef BitstreamContext GetBitContext; #else // CACHED_BITSTREAM_READER typedef struct GetBitContext { - const uint8_t *buffer, *buffer_end; + const uint8_t *buffer; int index; int size_in_bits; int size_in_bits_plus8; @@ -512,7 +512,6 @@ static inline unsigned int show_bits_long(GetBitContext *s, int n) static inline int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size) { - int buffer_size; int ret = 0; if (bit_size >= INT_MAX - FFMAX(7, AV_INPUT_BUFFER_PADDING_SIZE*8) || bit_size < 0 || !buffer) { @@ -521,12 +520,9 @@ static inline int init_get_bits(GetBitContext *s, const uint8_t *buffer, ret = AVERROR_INVALIDDATA; } - buffer_size = (bit_size + 7) >> 3; - s->buffer = buffer; s->size_in_bits = bit_size; s->size_in_bits_plus8 = bit_size + 8; - s->buffer_end = buffer + buffer_size; s->index = 0; return ret; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
