qdm2: Allow hard-coding VLC tables.

Also adds a lot of infrastructure necessary for it.
Some of it is a bit ugly though.
Increases binary size for hardcoded tables by about 12 kB,
which is about 15 kB from qdm2_table minus data and code
saved that was only used for creating it.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

1 files changed, 2 insertions, 165 deletions

diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c
index 339fe4b70a..55d9e3f31d 100644
--- a/libavcodec/qdm2.c
+++ b/libavcodec/qdm2.c
@@ -44,7 +44,6 @@
 #include "mpegaudiodsp.h"
 #include "mpegaudio.h"
 
-#include "qdm2data.h"
 #include "qdm2_tablegen.h"
 
 #undef NDEBUG
@@ -197,173 +196,11 @@ typedef struct {
     int noise_idx; ///< index for dithering noise table
 } QDM2Context;
 
-
-static VLC vlc_tab_level;
-static VLC vlc_tab_diff;
-static VLC vlc_tab_run;
-static VLC fft_level_exp_alt_vlc;
-static VLC fft_level_exp_vlc;
-static VLC fft_stereo_exp_vlc;
-static VLC fft_stereo_phase_vlc;
-static VLC vlc_tab_tone_level_idx_hi1;
-static VLC vlc_tab_tone_level_idx_mid;
-static VLC vlc_tab_tone_level_idx_hi2;
-static VLC vlc_tab_type30;
-static VLC vlc_tab_type34;
-static VLC vlc_tab_fft_tone_offset[5];
-
-static const uint16_t qdm2_vlc_offs[] = {
-    0,260,566,598,894,1166,1230,1294,1678,1950,2214,2278,2310,2570,2834,3124,3448,3838,
-};
-
 static const int switchtable[23] = {
     0, 5, 1, 5, 5, 5, 5, 5, 2, 5, 5, 5, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 4
 };
 
-static av_cold void qdm2_init_vlc(void)
-{
-    static VLC_TYPE qdm2_table[3838][2];
-
-    vlc_tab_level.table           = &qdm2_table[qdm2_vlc_offs[0]];
-    vlc_tab_level.table_allocated = qdm2_vlc_offs[1] - qdm2_vlc_offs[0];
-    init_vlc(&vlc_tab_level, 8, 24,
-             vlc_tab_level_huffbits, 1, 1,
-             vlc_tab_level_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_diff.table           = &qdm2_table[qdm2_vlc_offs[1]];
-    vlc_tab_diff.table_allocated = qdm2_vlc_offs[2] - qdm2_vlc_offs[1];
-    init_vlc(&vlc_tab_diff, 8, 37,
-             vlc_tab_diff_huffbits, 1, 1,
-             vlc_tab_diff_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_run.table           = &qdm2_table[qdm2_vlc_offs[2]];
-    vlc_tab_run.table_allocated = qdm2_vlc_offs[3] - qdm2_vlc_offs[2];
-    init_vlc(&vlc_tab_run, 5, 6,
-             vlc_tab_run_huffbits, 1, 1,
-             vlc_tab_run_huffcodes, 1, 1,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    fft_level_exp_alt_vlc.table           = &qdm2_table[qdm2_vlc_offs[3]];
-    fft_level_exp_alt_vlc.table_allocated = qdm2_vlc_offs[4] -
-                                            qdm2_vlc_offs[3];
-    init_vlc(&fft_level_exp_alt_vlc, 8, 28,
-             fft_level_exp_alt_huffbits, 1, 1,
-             fft_level_exp_alt_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    fft_level_exp_vlc.table           = &qdm2_table[qdm2_vlc_offs[4]];
-    fft_level_exp_vlc.table_allocated = qdm2_vlc_offs[5] - qdm2_vlc_offs[4];
-    init_vlc(&fft_level_exp_vlc, 8, 20,
-             fft_level_exp_huffbits, 1, 1,
-             fft_level_exp_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    fft_stereo_exp_vlc.table           = &qdm2_table[qdm2_vlc_offs[5]];
-    fft_stereo_exp_vlc.table_allocated = qdm2_vlc_offs[6] -
-                                         qdm2_vlc_offs[5];
-    init_vlc(&fft_stereo_exp_vlc, 6, 7,
-             fft_stereo_exp_huffbits, 1, 1,
-             fft_stereo_exp_huffcodes, 1, 1,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    fft_stereo_phase_vlc.table           = &qdm2_table[qdm2_vlc_offs[6]];
-    fft_stereo_phase_vlc.table_allocated = qdm2_vlc_offs[7] -
-                                           qdm2_vlc_offs[6];
-    init_vlc(&fft_stereo_phase_vlc, 6, 9,
-             fft_stereo_phase_huffbits, 1, 1,
-             fft_stereo_phase_huffcodes, 1, 1,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_tone_level_idx_hi1.table =
-        &qdm2_table[qdm2_vlc_offs[7]];
-    vlc_tab_tone_level_idx_hi1.table_allocated = qdm2_vlc_offs[8] -
-                                                 qdm2_vlc_offs[7];
-    init_vlc(&vlc_tab_tone_level_idx_hi1, 8, 20,
-             vlc_tab_tone_level_idx_hi1_huffbits, 1, 1,
-             vlc_tab_tone_level_idx_hi1_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_tone_level_idx_mid.table =
-        &qdm2_table[qdm2_vlc_offs[8]];
-    vlc_tab_tone_level_idx_mid.table_allocated = qdm2_vlc_offs[9] -
-                                                 qdm2_vlc_offs[8];
-    init_vlc(&vlc_tab_tone_level_idx_mid, 8, 24,
-             vlc_tab_tone_level_idx_mid_huffbits, 1, 1,
-             vlc_tab_tone_level_idx_mid_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_tone_level_idx_hi2.table =
-        &qdm2_table[qdm2_vlc_offs[9]];
-    vlc_tab_tone_level_idx_hi2.table_allocated = qdm2_vlc_offs[10] -
-                                                 qdm2_vlc_offs[9];
-    init_vlc(&vlc_tab_tone_level_idx_hi2, 8, 24,
-             vlc_tab_tone_level_idx_hi2_huffbits, 1, 1,
-             vlc_tab_tone_level_idx_hi2_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_type30.table           = &qdm2_table[qdm2_vlc_offs[10]];
-    vlc_tab_type30.table_allocated = qdm2_vlc_offs[11] - qdm2_vlc_offs[10];
-    init_vlc(&vlc_tab_type30, 6, 9,
-             vlc_tab_type30_huffbits, 1, 1,
-             vlc_tab_type30_huffcodes, 1, 1,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_type34.table           = &qdm2_table[qdm2_vlc_offs[11]];
-    vlc_tab_type34.table_allocated = qdm2_vlc_offs[12] - qdm2_vlc_offs[11];
-    init_vlc(&vlc_tab_type34, 5, 10,
-             vlc_tab_type34_huffbits, 1, 1,
-             vlc_tab_type34_huffcodes, 1, 1,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_fft_tone_offset[0].table =
-        &qdm2_table[qdm2_vlc_offs[12]];
-    vlc_tab_fft_tone_offset[0].table_allocated = qdm2_vlc_offs[13] -
-                                                 qdm2_vlc_offs[12];
-    init_vlc(&vlc_tab_fft_tone_offset[0], 8, 23,
-             vlc_tab_fft_tone_offset_0_huffbits, 1, 1,
-             vlc_tab_fft_tone_offset_0_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_fft_tone_offset[1].table =
-        &qdm2_table[qdm2_vlc_offs[13]];
-    vlc_tab_fft_tone_offset[1].table_allocated = qdm2_vlc_offs[14] -
-                                                 qdm2_vlc_offs[13];
-    init_vlc(&vlc_tab_fft_tone_offset[1], 8, 28,
-             vlc_tab_fft_tone_offset_1_huffbits, 1, 1,
-             vlc_tab_fft_tone_offset_1_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_fft_tone_offset[2].table =
-        &qdm2_table[qdm2_vlc_offs[14]];
-    vlc_tab_fft_tone_offset[2].table_allocated = qdm2_vlc_offs[15] -
-                                                 qdm2_vlc_offs[14];
-    init_vlc(&vlc_tab_fft_tone_offset[2], 8, 32,
-             vlc_tab_fft_tone_offset_2_huffbits, 1, 1,
-             vlc_tab_fft_tone_offset_2_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_fft_tone_offset[3].table =
-        &qdm2_table[qdm2_vlc_offs[15]];
-    vlc_tab_fft_tone_offset[3].table_allocated = qdm2_vlc_offs[16] -
-                                                 qdm2_vlc_offs[15];
-    init_vlc(&vlc_tab_fft_tone_offset[3], 8, 35,
-             vlc_tab_fft_tone_offset_3_huffbits, 1, 1,
-             vlc_tab_fft_tone_offset_3_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-
-    vlc_tab_fft_tone_offset[4].table =
-        &qdm2_table[qdm2_vlc_offs[16]];
-    vlc_tab_fft_tone_offset[4].table_allocated = qdm2_vlc_offs[17] -
-                                                 qdm2_vlc_offs[16];
-    init_vlc(&vlc_tab_fft_tone_offset[4], 8, 38,
-             vlc_tab_fft_tone_offset_4_huffbits, 1, 1,
-             vlc_tab_fft_tone_offset_4_huffcodes, 2, 2,
-             INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
-}
-
-static int qdm2_get_vlc(GetBitContext *gb, VLC *vlc, int flag, int depth)
+static int qdm2_get_vlc(GetBitContext *gb, const VLC *vlc, int flag, int depth)
 {
     int value;
 
@@ -392,7 +229,7 @@ static int qdm2_get_vlc(GetBitContext *gb, VLC *vlc, int flag, int depth)
     return value;
 }
 
-static int qdm2_get_se_vlc(VLC *vlc, GetBitContext *gb, int depth)
+static int qdm2_get_se_vlc(const VLC *vlc, GetBitContext *gb, int depth)
 {
     int value = qdm2_get_vlc(gb, vlc, 0, depth);