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rename AC3_MAX_FRAME_SIZE to AC3_FRAME_BUFFER_SIZE and increase the size

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Originally committed as revision 14858 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2008-08-20 00:08:59 +00:00
parent ba99cfc213
commit 8e33132bab
1 changed files with 4 additions and 4 deletions
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8
libavcodec/ac3dec.c
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@ -37,8 +37,8 @@
#include "ac3dec.h"
#include "ac3dec_data.h"
/** Maximum possible frame size when the specification limit is ignored */
#define AC3_MAX_FRAME_SIZE 21695
/** Large enough for maximum possible frame size when the specification limit is ignored */
#define AC3_FRAME_BUFFER_SIZE 32768
/**
* table for ungrouping 3 values in 7 bits.
@ -215,7 +215,7 @@ static av_cold int ac3_decode_init(AVCodecContext *avctx)
/* allocate context input buffer */
if (avctx->error_resilience >= FF_ER_CAREFUL) {
s->input_buffer = av_mallocz(AC3_MAX_FRAME_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
s->input_buffer = av_mallocz(AC3_FRAME_BUFFER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
if (!s->input_buffer)
return AVERROR_NOMEM;
}
@ -1042,7 +1042,7 @@ static int ac3_decode_frame(AVCodecContext * avctx, void *data, int *data_size,
if (s->input_buffer) {
/* copy input buffer to decoder context to avoid reading past the end
of the buffer, which can be caused by a damaged input stream. */
memcpy(s->input_buffer, buf, FFMIN(buf_size, AC3_MAX_FRAME_SIZE));
memcpy(s->input_buffer, buf, FFMIN(buf_size, AC3_FRAME_BUFFER_SIZE));
init_get_bits(&s->gbc, s->input_buffer, buf_size * 8);
} else {
init_get_bits(&s->gbc, buf, buf_size * 8);