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avcodec/jpeglsenc: Remove redundant implicit checks

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Now that the proper buffer size is calculated (and checked) before
allocating the buffer, it is known that the buffer always suffices.
So use the unchecked PutBit-API; and also use an unchecked bitstream
reader as we check ourselves.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-04-29 15:31:46 +02:00
parent f249c32eff
commit 83cb9be1d2
1 changed files with 4 additions and 9 deletions
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13
libavcodec/jpeglsenc.c
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@ -25,6 +25,7 @@
* JPEG-LS encoder.
*/
#define UNCHECKED_BITSTREAM_READER 1
#include "avcodec.h"
#include "bytestream.h"
#include "encode.h"
@ -53,12 +54,6 @@ static inline void put_marker_byteu(PutByteContext *pb, enum JpegMarker code)
bytestream2_put_byteu(pb, code);
}
static inline void put_marker_byte(PutByteContext *pb, enum JpegMarker code)
{
bytestream2_put_byte(pb, 0xff);
bytestream2_put_byte(pb, code);
}
/**
* Encode error from regular symbol
*/
@ -408,15 +403,15 @@ static int encode_picture_ls(AVCodecContext *avctx, AVPacket *pkt,
while (get_bits_count(&gb) < size_in_bits) {
int v;
v = get_bits(&gb, 8);
bytestream2_put_byte(&pb, v);
bytestream2_put_byteu(&pb, v);
if (v == 0xFF) {
v = get_bits(&gb, 7);
bytestream2_put_byte(&pb, v);
bytestream2_put_byteu(&pb, v);
}
}
/* End of image */
put_marker_byte(&pb, EOI);
put_marker_byteu(&pb, EOI);
emms_c();