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mimic: convert to bytestream2 API

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
This commit is contained in:
Paul B Mahol 2012-03-12 14:56:40 +00:00 committed by Ronald S. Bultje
parent 05d089a80b
commit dba425ad7a
1 changed files with 11 additions and 9 deletions
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20
libavcodec/mimic.c
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@ -306,6 +306,7 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
MimicContext *ctx = avctx->priv_data;
GetByteContext gb;
int is_pframe;
int width, height;
int quality, num_coeffs;
@ -316,14 +317,15 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
return -1;
}
buf += 2; /* some constant (always 256) */
quality = bytestream_get_le16(&buf);
width = bytestream_get_le16(&buf);
height = bytestream_get_le16(&buf);
buf += 4; /* some constant */
is_pframe = bytestream_get_le32(&buf);
num_coeffs = bytestream_get_byte(&buf);
buf += 3; /* some constant */
bytestream2_init(&gb, buf, MIMIC_HEADER_SIZE);
bytestream2_skip(&gb, 2); /* some constant (always 256) */
quality = bytestream2_get_le16u(&gb);
width = bytestream2_get_le16u(&gb);
height = bytestream2_get_le16u(&gb);
bytestream2_skip(&gb, 4); /* some constant */
is_pframe = bytestream2_get_le32u(&gb);
num_coeffs = bytestream2_get_byteu(&gb);
bytestream2_skip(&gb, 3); /* some constant */
if(!ctx->avctx) {
int i;
@ -373,7 +375,7 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
return AVERROR(ENOMEM);
ctx->dsp.bswap_buf(ctx->swap_buf,
(const uint32_t*) buf,
(const uint32_t*) (buf + MIMIC_HEADER_SIZE),
swap_buf_size>>2);
init_get_bits(&ctx->gb, ctx->swap_buf, swap_buf_size << 3);