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authorAlexandra Hájková <alexandra@khirnov.net>2016-04-23 15:11:27 +0200
committerAlexandra Hájková <alexandra@khirnov.net>2016-05-22 16:47:59 +0200
commit28dcd1c6893783083e18957a0e019ec4cbd91395 (patch)
treec1f8b677d0c7f2c9f7a5b9e7ec4935db7b077264
parentc3ac98ee2be3f27f98fe25fe1e45d5061fd00034 (diff)
truemotion2: convert to the new bitstream reader
-rw-r--r--libavcodec/truemotion2.c40
1 files changed, 20 insertions, 20 deletions
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c
index 172644007c..99884be4bb 100644
--- a/libavcodec/truemotion2.c
+++ b/libavcodec/truemotion2.c
@@ -27,9 +27,9 @@
#include <inttypes.h>
#include "avcodec.h"
+#include "bitstream.h"
#include "bswapdsp.h"
#include "bytestream.h"
-#include "get_bits.h"
#include "internal.h"
#define TM2_ESCAPE 0x80000000
@@ -62,7 +62,7 @@ typedef struct TM2Context {
AVCodecContext *avctx;
AVFrame *pic;
- GetBitContext gb;
+ BitstreamContext bc;
BswapDSPContext bdsp;
/* TM2 streams */
@@ -117,7 +117,7 @@ static int tm2_read_tree(TM2Context *ctx, uint32_t prefix, int length, TM2Huff *
return AVERROR_INVALIDDATA;
}
- if (!get_bits1(&ctx->gb)) { /* literal */
+ if (!bitstream_read_bit(&ctx->bc)) { /* literal */
if (length == 0) {
length = 1;
}
@@ -125,7 +125,7 @@ static int tm2_read_tree(TM2Context *ctx, uint32_t prefix, int length, TM2Huff *
av_log(ctx->avctx, AV_LOG_DEBUG, "Too many literals\n");
return AVERROR_INVALIDDATA;
}
- huff->nums[huff->num] = get_bits_long(&ctx->gb, huff->val_bits);
+ huff->nums[huff->num] = bitstream_read(&ctx->bc, huff->val_bits);
huff->bits[huff->num] = prefix;
huff->lens[huff->num] = length;
huff->num++;
@@ -144,10 +144,10 @@ static int tm2_build_huff_table(TM2Context *ctx, TM2Codes *code)
TM2Huff huff;
int res = 0;
- huff.val_bits = get_bits(&ctx->gb, 5);
- huff.max_bits = get_bits(&ctx->gb, 5);
- huff.min_bits = get_bits(&ctx->gb, 5);
- huff.nodes = get_bits_long(&ctx->gb, 17);
+ huff.val_bits = bitstream_read(&ctx->bc, 5);
+ huff.max_bits = bitstream_read(&ctx->bc, 5);
+ huff.min_bits = bitstream_read(&ctx->bc, 5);
+ huff.nodes = bitstream_read(&ctx->bc, 17);
huff.num = 0;
/* check for correct codes parameters */
@@ -222,10 +222,10 @@ static void tm2_free_codes(TM2Codes *code)
ff_free_vlc(&code->vlc);
}
-static inline int tm2_get_token(GetBitContext *gb, TM2Codes *code)
+static inline int tm2_get_token(BitstreamContext *bc, TM2Codes *code)
{
int val;
- val = get_vlc2(gb, code->vlc.table, code->bits, 1);
+ val = bitstream_read_vlc(bc, code->vlc.table, code->bits, 1);
return code->recode[val];
}
@@ -254,8 +254,8 @@ static int tm2_read_deltas(TM2Context *ctx, int stream_id)
int d, mb;
int i, v;
- d = get_bits(&ctx->gb, 9);
- mb = get_bits(&ctx->gb, 5);
+ d = bitstream_read(&ctx->bc, 9);
+ mb = bitstream_read(&ctx->bc, 5);
if ((d < 1) || (d > TM2_DELTAS) || (mb < 1) || (mb > 32)) {
av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect delta table: %i deltas x %i bits\n", d, mb);
@@ -263,7 +263,7 @@ static int tm2_read_deltas(TM2Context *ctx, int stream_id)
}
for (i = 0; i < d; i++) {
- v = get_bits_long(&ctx->gb, mb);
+ v = bitstream_read(&ctx->bc, mb);
if (v & (1 << (mb - 1)))
ctx->deltas[stream_id][i] = v - (1 << mb);
else
@@ -306,10 +306,10 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
pos = bytestream2_tell(&gb);
if (skip <= pos)
return AVERROR_INVALIDDATA;
- init_get_bits(&ctx->gb, buf + pos, (skip - pos) * 8);
+ bitstream_init(&ctx->bc, buf + pos, (skip - pos) * 8);
if ((ret = tm2_read_deltas(ctx, stream_id)) < 0)
return ret;
- bytestream2_skip(&gb, ((get_bits_count(&ctx->gb) + 31) >> 5) << 2);
+ bytestream2_skip(&gb, ((bitstream_tell(&ctx->bc) + 31) >> 5) << 2);
}
}
/* skip unused fields */
@@ -323,10 +323,10 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
pos = bytestream2_tell(&gb);
if (skip <= pos)
return AVERROR_INVALIDDATA;
- init_get_bits(&ctx->gb, buf + pos, (skip - pos) * 8);
+ bitstream_init(&ctx->bc, buf + pos, (skip - pos) * 8);
if ((ret = tm2_build_huff_table(ctx, &codes)) < 0)
return ret;
- bytestream2_skip(&gb, ((get_bits_count(&ctx->gb) + 31) >> 5) << 2);
+ bytestream2_skip(&gb, ((bitstream_tell(&ctx->bc) + 31) >> 5) << 2);
toks >>= 1;
/* check if we have sane number of tokens */
@@ -342,13 +342,13 @@ static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, i
pos = bytestream2_tell(&gb);
if (skip <= pos)
return AVERROR_INVALIDDATA;
- init_get_bits(&ctx->gb, buf + pos, (skip - pos) * 8);
+ bitstream_init(&ctx->bc, buf + pos, (skip - pos) * 8);
for (i = 0; i < toks; i++) {
- if (get_bits_left(&ctx->gb) <= 0) {
+ if (bitstream_bits_left(&ctx->bc) <= 0) {
av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect number of tokens: %i\n", toks);
return AVERROR_INVALIDDATA;
}
- ctx->tokens[stream_id][i] = tm2_get_token(&ctx->gb, &codes);
+ ctx->tokens[stream_id][i] = tm2_get_token(&ctx->bc, &codes);
if (stream_id <= TM2_MOT && ctx->tokens[stream_id][i] >= TM2_DELTAS) {
av_log(ctx->avctx, AV_LOG_ERROR, "Invalid delta token index %d for type %d, n=%d\n",
ctx->tokens[stream_id][i], stream_id, i);