hqx: Convert to the new bitstream header

Signed-off-by: Anton Khirnov <anton@khirnov.net>

2 files changed, 35 insertions, 34 deletions

diff --git a/libavcodec/hqx.c b/libavcodec/hqx.c
index 7411d3f252..3c359e3863 100644
--- a/libavcodec/hqx.c
+++ b/libavcodec/hqx.c
@@ -24,8 +24,8 @@
 #include "libavutil/intreadwrite.h"
 
 #include "avcodec.h"
+#include "bitstream.h"
 #include "canopus.h"
-#include "get_bits.h"
 #include "internal.h"
 
 #include "hqx.h"
@@ -95,23 +95,23 @@ static inline void put_blocks(HQXContext *ctx, int plane,
                          lsize * fields, block1, quant);
 }
 
-static inline void hqx_get_ac(GetBitContext *gb, const HQXAC *ac,
+static inline void hqx_get_ac(BitstreamContext *bc, const HQXAC *ac,
                               int *run, int *lev)
 {
     int val;
 
-    val = show_bits(gb, ac->lut_bits);
+    val = bitstream_peek(bc, ac->lut_bits);
     if (ac->lut[val].bits == -1) {
-        GetBitContext gb2 = *gb;
-        skip_bits(&gb2, ac->lut_bits);
-        val = ac->lut[val].lev + show_bits(&gb2, ac->extra_bits);
+        BitstreamContext bc2 = *bc;
+        bitstream_skip(&bc2, ac->lut_bits);
+        val = ac->lut[val].lev + bitstream_peek(&bc2, ac->extra_bits);
     }
     *run = ac->lut[val].run;
     *lev = ac->lut[val].lev;
-    skip_bits(gb, ac->lut[val].bits);
+    bitstream_skip(bc, ac->lut[val].bits);
 }
 
-static int decode_block(GetBitContext *gb, VLC *vlc,
+static int decode_block(BitstreamContext *bc, VLC *vlc,
                         const int *quants, int dcb,
                         int16_t block[64], int *last_dc)
 {
@@ -120,14 +120,14 @@ static int decode_block(GetBitContext *gb, VLC *vlc,
     int run, lev, pos = 1;
 
     memset(block, 0, 64 * sizeof(*block));
-    dc = get_vlc2(gb, vlc->table, HQX_DC_VLC_BITS, 2);
+    dc = bitstream_read_vlc(bc, vlc->table, HQX_DC_VLC_BITS, 2);
     if (dc < 0)
         return AVERROR_INVALIDDATA;
     *last_dc += dc;
 
     block[0] = sign_extend(*last_dc << (12 - dcb), 12);
 
-    q = quants[get_bits(gb, 2)];
+    q = quants[bitstream_read(bc, 2)];
     if (q >= 128)
         ac_idx = HQX_AC_Q128;
     else if (q >= 64)
@@ -142,7 +142,7 @@ static int decode_block(GetBitContext *gb, VLC *vlc,
         ac_idx = HQX_AC_Q0;
 
     do {
-        hqx_get_ac(gb, &ff_hqx_ac[ac_idx], &run, &lev);
+        hqx_get_ac(bc, &ff_hqx_ac[ac_idx], &run, &lev);
         pos += run;
         if (pos >= 64)
             break;
@@ -155,24 +155,24 @@ static int decode_block(GetBitContext *gb, VLC *vlc,
 static int hqx_decode_422(HQXContext *ctx, int slice_no, int x, int y)
 {
     HQXSlice *slice = &ctx->slice[slice_no];
-    GetBitContext *gb = &slice->gb;
+    BitstreamContext *bc = &slice->bc;
     const int *quants;
     int flag;
     int last_dc;
     int i, ret;
 
     if (ctx->interlaced)
-        flag = get_bits1(gb);
+        flag = bitstream_read_bit(bc);
     else
         flag = 0;
 
-    quants = hqx_quants[get_bits(gb, 4)];
+    quants = hqx_quants[bitstream_read(bc, 4)];
 
     for (i = 0; i < 8; i++) {
         int vlc_index = ctx->dcb - 9;
         if (i == 0 || i == 4 || i == 6)
             last_dc = 0;
-        ret = decode_block(gb, &ctx->dc_vlc[vlc_index], quants,
+        ret = decode_block(bc, &ctx->dc_vlc[vlc_index], quants,
                            ctx->dcb, slice->block[i], &last_dc);
         if (ret < 0)
             return ret;
@@ -189,14 +189,14 @@ static int hqx_decode_422(HQXContext *ctx, int slice_no, int x, int y)
 static int hqx_decode_422a(HQXContext *ctx, int slice_no, int x, int y)
 {
     HQXSlice *slice = &ctx->slice[slice_no];
-    GetBitContext *gb = &slice->gb;
+    BitstreamContext *bc = &slice->bc;
     const int *quants;
     int flag = 0;
     int last_dc;
     int i, ret;
     int cbp;
 
-    cbp = get_vlc2(gb, ctx->cbp_vlc.table, ctx->cbp_vlc.bits, 1);
+    cbp = bitstream_read_vlc(bc, ctx->cbp_vlc.table, ctx->cbp_vlc.bits, 1);
 
     for (i = 0; i < 12; i++)
         memset(slice->block[i], 0, sizeof(**slice->block) * 64);
@@ -204,9 +204,9 @@ static int hqx_decode_422a(HQXContext *ctx, int slice_no, int x, int y)
         slice->block[i][0] = -0x800;
     if (cbp) {
         if (ctx->interlaced)
-            flag = get_bits1(gb);
+            flag = bitstream_read_bit(bc);
 
-        quants = hqx_quants[get_bits(gb, 4)];
+        quants = hqx_quants[bitstream_read(bc, 4)];
 
         cbp |= cbp << 4; // alpha CBP
         if (cbp & 0x3)   // chroma CBP - top
@@ -218,7 +218,7 @@ static int hqx_decode_422a(HQXContext *ctx, int slice_no, int x, int y)
                 last_dc = 0;
             if (cbp & (1 << i)) {
                 int vlc_index = ctx->dcb - 9;
-                ret = decode_block(gb, &ctx->dc_vlc[vlc_index], quants,
+                ret = decode_block(bc, &ctx->dc_vlc[vlc_index], quants,
                                    ctx->dcb, slice->block[i], &last_dc);
                 if (ret < 0)
                     return ret;
@@ -239,24 +239,24 @@ static int hqx_decode_422a(HQXContext *ctx, int slice_no, int x, int y)
 static int hqx_decode_444(HQXContext *ctx, int slice_no, int x, int y)
 {
     HQXSlice *slice = &ctx->slice[slice_no];
-    GetBitContext *gb = &slice->gb;
+    BitstreamContext *bc = &slice->bc;
     const int *quants;
     int flag;
     int last_dc;
     int i, ret;
 
     if (ctx->interlaced)
-        flag = get_bits1(gb);
+        flag = bitstream_read_bit(bc);
     else
         flag = 0;
 
-    quants = hqx_quants[get_bits(gb, 4)];
+    quants = hqx_quants[bitstream_read(bc, 4)];
 
     for (i = 0; i < 12; i++) {
         int vlc_index = ctx->dcb - 9;
         if (i == 0 || i == 4 || i == 8)
             last_dc = 0;
-        ret = decode_block(gb, &ctx->dc_vlc[vlc_index], quants,
+        ret = decode_block(bc, &ctx->dc_vlc[vlc_index], quants,
                            ctx->dcb, slice->block[i], &last_dc);
         if (ret < 0)
             return ret;
@@ -275,14 +275,14 @@ static int hqx_decode_444(HQXContext *ctx, int slice_no, int x, int y)
 static int hqx_decode_444a(HQXContext *ctx, int slice_no, int x, int y)
 {
     HQXSlice *slice = &ctx->slice[slice_no];
-    GetBitContext *gb = &slice->gb;
+    BitstreamContext *bc = &slice->bc;
     const int *quants;
     int flag = 0;
     int last_dc;
     int i, ret;
     int cbp;
 
-    cbp = get_vlc2(gb, ctx->cbp_vlc.table, ctx->cbp_vlc.bits, 1);
+    cbp = bitstream_read_vlc(bc, ctx->cbp_vlc.table, ctx->cbp_vlc.bits, 1);
 
     for (i = 0; i < 16; i++)
         memset(slice->block[i], 0, sizeof(**slice->block) * 64);
@@ -290,9 +290,9 @@ static int hqx_decode_444a(HQXContext *ctx, int slice_no, int x, int y)
         slice->block[i][0] = -0x800;
     if (cbp) {
         if (ctx->interlaced)
-            flag = get_bits1(gb);
+            flag = bitstream_read_bit(bc);
 
-        quants = hqx_quants[get_bits(gb, 4)];
+        quants = hqx_quants[bitstream_read(bc, 4)];
 
         cbp |= cbp << 4; // alpha CBP
         cbp |= cbp << 8; // chroma CBP
@@ -301,7 +301,7 @@ static int hqx_decode_444a(HQXContext *ctx, int slice_no, int x, int y)
                 last_dc = 0;
             if (cbp & (1 << i)) {
                 int vlc_index = ctx->dcb - 9;
-                ret = decode_block(gb, &ctx->dc_vlc[vlc_index], quants,
+                ret = decode_block(bc, &ctx->dc_vlc[vlc_index], quants,
                                    ctx->dcb, slice->block[i], &last_dc);
                 if (ret < 0)
                     return ret;
@@ -392,9 +392,9 @@ static int decode_slice_thread(AVCodecContext *avctx, void *arg,
         return AVERROR_INVALIDDATA;
     }
 
-    ret = init_get_bits8(&ctx->slice[slice_no].gb,
-                         ctx->src + slice_off[slice_no],
-                         slice_off[slice_no + 1] - slice_off[slice_no]);
+    ret = bitstream_init8(&ctx->slice[slice_no].bc,
+                          ctx->src + slice_off[slice_no],
+                          slice_off[slice_no + 1] - slice_off[slice_no]);
     if (ret < 0)
         return ret;
 
diff --git a/libavcodec/hqx.h b/libavcodec/hqx.h
index 7f329712fd..e8f7c627fb 100644
--- a/libavcodec/hqx.h
+++ b/libavcodec/hqx.h
@@ -25,7 +25,8 @@
 
 #include "libavutil/frame.h"
 #include "libavutil/mem.h"
-#include "get_bits.h"
+
+#include "bitstream.h"
 #include "hqxdsp.h"
 
 enum HQXACMode {
@@ -55,7 +56,7 @@ typedef int (*mb_decode_func)(struct HQXContext *ctx,
                               int slice_no, int x, int y);
 
 typedef struct HQXSlice {
-    GetBitContext gb;
+    BitstreamContext bc;
     DECLARE_ALIGNED(16, int16_t, block)[16][64];
 } HQXSlice;