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Use bytestream functions for reading frame header.

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Originally committed as revision 12929 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ramiro Polla 2008-04-22 20:24:07 +00:00
parent 904bc6b80a
commit fc22c00935
1 changed files with 9 additions and 7 deletions
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16
libavcodec/mimic.c
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@ -25,6 +25,7 @@
#include "avcodec.h"
#include "bitstream.h"
#include "bytestream.h"
#include "dsputil.h"
#define MIMIC_HEADER_SIZE 20
@ -297,8 +298,13 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
return -1;
}
width = AV_RL16(buf + 4);
height = AV_RL16(buf + 6);
buf += 2;
quality = bytestream_get_le16(&buf);
width = bytestream_get_le16(&buf);
height = bytestream_get_le16(&buf);
buf += 4;
is_pframe = bytestream_get_le32(&buf);
num_coeffs = bytestream_get_le32(&buf);
if(!ctx->avctx) {
int i;
@ -322,10 +328,6 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
return -1;
}
quality = AV_RL16(buf + 2);
is_pframe = AV_RL32(buf + 12);
num_coeffs = buf[16];
if(is_pframe && !ctx->buf_ptrs[ctx->prev_index].data[0]) {
av_log(avctx, AV_LOG_ERROR, "decoding must start with keyframe\n");
return -1;
@ -346,7 +348,7 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
return AVERROR_NOMEM;
ctx->dsp.bswap_buf((uint32_t*)ctx->swap_buf,
(const uint32_t*) (buf + MIMIC_HEADER_SIZE),
(const uint32_t*) buf,
swap_buf_size>>2);
init_get_bits(&ctx->gb, ctx->swap_buf, swap_buf_size << 3);