* newdev/master:
ac3enc: move compute_mantissa_size() to ac3dsp
ac3enc: move mant*_cnt and qmant*_ptr out of AC3EncodeContext
Remove support for stripping executables
ac3enc: NEON optimised float_to_fixed24
ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp
dfa: protect pointer range checks against overflows.
Duplicate: mimic: implement multithreading.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
| ... | ... |
@@ -10,7 +10,6 @@ PROGS-$(CONFIG_FFPROBE) += ffprobe |
| 10 | 10 |
PROGS-$(CONFIG_FFSERVER) += ffserver |
| 11 | 11 |
|
| 12 | 12 |
PROGS := $(PROGS-yes:%=%$(EXESUF)) |
| 13 |
-PROGS_G = $(PROGS-yes:%=%_g$(EXESUF)) |
|
| 14 | 13 |
OBJS = $(PROGS-yes:%=%.o) cmdutils.o |
| 15 | 14 |
MANPAGES = $(PROGS-yes:%=doc/%.1) |
| 16 | 15 |
PODPAGES = $(PROGS-yes:%=doc/%.pod) |
| ... | ... |
@@ -21,7 +20,6 @@ HOSTPROGS := $(TESTTOOLS:%=tests/%) |
| 21 | 21 |
|
| 22 | 22 |
BASENAMES = ffmpeg ffplay ffprobe ffserver |
| 23 | 23 |
ALLPROGS = $(BASENAMES:%=%$(EXESUF)) |
| 24 |
-ALLPROGS_G = $(BASENAMES:%=%_g$(EXESUF)) |
|
| 25 | 24 |
ALLMANPAGES = $(BASENAMES:%=%.1) |
| 26 | 25 |
|
| 27 | 26 |
FFLIBS-$(CONFIG_AVDEVICE) += avdevice |
| ... | ... |
@@ -53,10 +51,6 @@ INSTALL_PROGS_TARGETS-$(CONFIG_SHARED) = install-libs |
| 53 | 53 |
|
| 54 | 54 |
all: $(FF_DEP_LIBS) $(PROGS) $(ALL_TARGETS-yes) |
| 55 | 55 |
|
| 56 |
-$(PROGS): %$(EXESUF): %_g$(EXESUF) |
|
| 57 |
- $(CP) $< $@ |
|
| 58 |
- $(STRIP) $@ |
|
| 59 |
- |
|
| 60 | 56 |
config.h: .config |
| 61 | 57 |
.config: $(wildcard $(FFLIBS:%=$(SRC_DIR)/lib%/all*.c)) |
| 62 | 58 |
@-tput bold 2>/dev/null |
| ... | ... |
@@ -80,10 +74,10 @@ endef |
| 80 | 80 |
|
| 81 | 81 |
$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D)))) |
| 82 | 82 |
|
| 83 |
-ffplay_g$(EXESUF): FF_EXTRALIBS += $(SDL_LIBS) |
|
| 84 |
-ffserver_g$(EXESUF): FF_LDFLAGS += $(FFSERVERLDFLAGS) |
|
| 83 |
+ffplay$(EXESUF): FF_EXTRALIBS += $(SDL_LIBS) |
|
| 84 |
+ffserver$(EXESUF): FF_LDFLAGS += $(FFSERVERLDFLAGS) |
|
| 85 | 85 |
|
| 86 |
-%_g$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS) |
|
| 86 |
+%$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS) |
|
| 87 | 87 |
$(LD) $(FF_LDFLAGS) -o $@ $< cmdutils.o $(FF_EXTRALIBS) |
| 88 | 88 |
|
| 89 | 89 |
tools/%$(EXESUF): tools/%.o |
| ... | ... |
@@ -165,7 +159,7 @@ testclean: |
| 165 | 165 |
$(RM) $(TESTTOOLS:%=tests/%$(HOSTEXESUF)) |
| 166 | 166 |
|
| 167 | 167 |
clean:: testclean |
| 168 |
- $(RM) $(ALLPROGS) $(ALLPROGS_G) |
|
| 168 |
+ $(RM) $(ALLPROGS) |
|
| 169 | 169 |
$(RM) $(CLEANSUFFIXES) |
| 170 | 170 |
$(RM) doc/*.html doc/*.pod doc/*.1 |
| 171 | 171 |
$(RM) $(TOOLS) |
| ... | ... |
@@ -243,7 +243,6 @@ Developer options (useful when working on FFmpeg itself): |
| 243 | 243 |
--enable-debug=LEVEL set the debug level [$debuglevel] |
| 244 | 244 |
--disable-optimizations disable compiler optimizations |
| 245 | 245 |
--enable-extra-warnings enable more compiler warnings |
| 246 |
- --disable-stripping disable stripping of executables and shared libraries |
|
| 247 | 246 |
--samples=PATH location of test samples for FATE, if not set use |
| 248 | 247 |
\$FATE_SAMPLES at make invocation time. |
| 249 | 248 |
|
| ... | ... |
@@ -1146,7 +1145,6 @@ CMDLINE_SELECT=" |
| 1146 | 1146 |
extra_warnings |
| 1147 | 1147 |
logging |
| 1148 | 1148 |
optimizations |
| 1149 |
- stripping |
|
| 1150 | 1149 |
symver |
| 1151 | 1150 |
yasm |
| 1152 | 1151 |
" |
| ... | ... |
@@ -1184,7 +1182,6 @@ CMDLINE_SET=" |
| 1184 | 1184 |
pkg_config |
| 1185 | 1185 |
samples |
| 1186 | 1186 |
source_path |
| 1187 |
- strip |
|
| 1188 | 1187 |
sysinclude |
| 1189 | 1188 |
sysroot |
| 1190 | 1189 |
target_exec |
| ... | ... |
@@ -1242,7 +1239,7 @@ rdft_select="fft" |
| 1242 | 1242 |
aac_decoder_select="mdct rdft sinewin" |
| 1243 | 1243 |
aac_encoder_select="mdct sinewin" |
| 1244 | 1244 |
aac_latm_decoder_select="aac_decoder aac_latm_parser" |
| 1245 |
-ac3_decoder_select="mdct ac3_parser" |
|
| 1245 |
+ac3_decoder_select="mdct ac3dsp ac3_parser" |
|
| 1246 | 1246 |
ac3_encoder_select="mdct ac3dsp" |
| 1247 | 1247 |
ac3_fixed_encoder_select="ac3dsp" |
| 1248 | 1248 |
alac_encoder_select="lpc" |
| ... | ... |
@@ -1624,7 +1621,6 @@ nm_default="nm" |
| 1624 | 1624 |
objformat="elf" |
| 1625 | 1625 |
pkg_config_default=pkg-config |
| 1626 | 1626 |
ranlib="ranlib" |
| 1627 |
-strip_default="strip" |
|
| 1628 | 1627 |
yasmexe="yasm" |
| 1629 | 1628 |
nogas=":" |
| 1630 | 1629 |
|
| ... | ... |
@@ -1657,7 +1653,6 @@ enable network |
| 1657 | 1657 |
enable optimizations |
| 1658 | 1658 |
enable protocols |
| 1659 | 1659 |
enable static |
| 1660 |
-enable stripping |
|
| 1661 | 1660 |
enable swscale |
| 1662 | 1661 |
enable swscale_alpha |
| 1663 | 1662 |
|
| ... | ... |
@@ -1834,11 +1829,10 @@ cc_default="${cross_prefix}${cc_default}"
|
| 1834 | 1834 |
nm_default="${cross_prefix}${nm_default}"
|
| 1835 | 1835 |
pkg_config_default="${cross_prefix}${pkg_config_default}"
|
| 1836 | 1836 |
ranlib="${cross_prefix}${ranlib}"
|
| 1837 |
-strip_default="${cross_prefix}${strip_default}"
|
|
| 1838 | 1837 |
|
| 1839 | 1838 |
sysinclude_default="${sysroot}/usr/include"
|
| 1840 | 1839 |
|
| 1841 |
-set_default cc nm pkg_config strip sysinclude |
|
| 1840 |
+set_default cc nm pkg_config sysinclude |
|
| 1842 | 1841 |
enabled cross_compile || host_cc_default=$cc |
| 1843 | 1842 |
set_default host_cc |
| 1844 | 1843 |
|
| ... | ... |
@@ -2397,7 +2391,6 @@ case $target_os in |
| 2397 | 2397 |
;; |
| 2398 | 2398 |
bsd/os) |
| 2399 | 2399 |
add_extralibs -lpoll -lgnugetopt |
| 2400 |
- strip="strip -d" |
|
| 2401 | 2400 |
;; |
| 2402 | 2401 |
darwin) |
| 2403 | 2402 |
enable malloc_aligned |
| ... | ... |
@@ -2405,7 +2398,6 @@ case $target_os in |
| 2405 | 2405 |
enabled ppc && add_asflags -force_cpusubtype_ALL |
| 2406 | 2406 |
SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)' |
| 2407 | 2407 |
enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress |
| 2408 |
- strip="${strip} -x"
|
|
| 2409 | 2408 |
add_ldflags -Wl,-dynamic,-search_paths_first |
| 2410 | 2409 |
SLIBSUF=".dylib" |
| 2411 | 2410 |
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)' |
| ... | ... |
@@ -2475,7 +2467,6 @@ case $target_os in |
| 2475 | 2475 |
ranlib="echo ignoring ranlib" |
| 2476 | 2476 |
;; |
| 2477 | 2477 |
os/2*) |
| 2478 |
- strip="lxlite -CS" |
|
| 2479 | 2478 |
ln_s="cp -f" |
| 2480 | 2479 |
add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap |
| 2481 | 2480 |
SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf' |
| ... | ... |
@@ -3130,7 +3121,6 @@ if enabled sparc; then |
| 3130 | 3130 |
echo "VIS enabled ${vis-no}"
|
| 3131 | 3131 |
fi |
| 3132 | 3132 |
echo "debug symbols ${debug-no}"
|
| 3133 |
-echo "strip symbols ${stripping-no}"
|
|
| 3134 | 3133 |
echo "optimizations ${optimizations-no}"
|
| 3135 | 3134 |
echo "static ${static-no}"
|
| 3136 | 3135 |
echo "shared ${shared-no}"
|
| ... | ... |
@@ -3226,8 +3216,6 @@ if enabled source_path_used; then |
| 3226 | 3226 |
map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES |
| 3227 | 3227 |
fi |
| 3228 | 3228 |
|
| 3229 |
-enabled stripping || strip="echo skipping strip" |
|
| 3230 |
- |
|
| 3231 | 3229 |
config_files="$TMPH config.mak" |
| 3232 | 3230 |
|
| 3233 | 3231 |
cat > config.mak <<EOF |
| ... | ... |
@@ -3255,9 +3243,7 @@ YASM=$yasmexe |
| 3255 | 3255 |
YASMDEP=$yasmexe |
| 3256 | 3256 |
AR=$ar |
| 3257 | 3257 |
RANLIB=$ranlib |
| 3258 |
-CP=cp -p |
|
| 3259 | 3258 |
LN_S=$ln_s |
| 3260 |
-STRIP=$strip |
|
| 3261 | 3259 |
CPPFLAGS=$CPPFLAGS |
| 3262 | 3260 |
CFLAGS=$CFLAGS |
| 3263 | 3261 |
ASFLAGS=$ASFLAGS |
| ... | ... |
@@ -31,7 +31,7 @@ |
| 31 | 31 |
/** |
| 32 | 32 |
* Starting frequency coefficient bin for each critical band. |
| 33 | 33 |
*/ |
| 34 |
-static const uint8_t band_start_tab[AC3_CRITICAL_BANDS+1] = {
|
|
| 34 |
+const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1] = {
|
|
| 35 | 35 |
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, |
| 36 | 36 |
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, |
| 37 | 37 |
20, 21, 22, 23, 24, 25, 26, 27, 28, 31, |
| ... | ... |
@@ -44,7 +44,7 @@ static const uint8_t band_start_tab[AC3_CRITICAL_BANDS+1] = {
|
| 44 | 44 |
/** |
| 45 | 45 |
* Map each frequency coefficient bin to the critical band that contains it. |
| 46 | 46 |
*/ |
| 47 |
-static const uint8_t bin_to_band_tab[253] = {
|
|
| 47 |
+const uint8_t ff_ac3_bin_to_band_tab[253] = {
|
|
| 48 | 48 |
0, |
| 49 | 49 |
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, |
| 50 | 50 |
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, |
| ... | ... |
@@ -70,7 +70,7 @@ static const uint8_t bin_to_band_tab[253] = {
|
| 70 | 70 |
}; |
| 71 | 71 |
|
| 72 | 72 |
#else /* CONFIG_HARDCODED_TABLES */ |
| 73 |
-static uint8_t bin_to_band_tab[253]; |
|
| 73 |
+uint8_t ff_ac3_bin_to_band_tab[253]; |
|
| 74 | 74 |
#endif |
| 75 | 75 |
|
| 76 | 76 |
static inline int calc_lowcomp1(int a, int b0, int b1, int c) |
| ... | ... |
@@ -106,10 +106,10 @@ void ff_ac3_bit_alloc_calc_psd(int8_t *exp, int start, int end, int16_t *psd, |
| 106 | 106 |
|
| 107 | 107 |
/* PSD integration */ |
| 108 | 108 |
bin = start; |
| 109 |
- band = bin_to_band_tab[start]; |
|
| 109 |
+ band = ff_ac3_bin_to_band_tab[start]; |
|
| 110 | 110 |
do {
|
| 111 | 111 |
int v = psd[bin++]; |
| 112 |
- int band_end = FFMIN(band_start_tab[band+1], end); |
|
| 112 |
+ int band_end = FFMIN(ff_ac3_band_start_tab[band+1], end); |
|
| 113 | 113 |
for (; bin < band_end; bin++) {
|
| 114 | 114 |
int max = FFMAX(v, psd[bin]); |
| 115 | 115 |
/* logadd */ |
| ... | ... |
@@ -117,7 +117,7 @@ void ff_ac3_bit_alloc_calc_psd(int8_t *exp, int start, int end, int16_t *psd, |
| 117 | 117 |
v = max + ff_ac3_log_add_tab[adr]; |
| 118 | 118 |
} |
| 119 | 119 |
band_psd[band++] = v; |
| 120 |
- } while (end > band_start_tab[band]); |
|
| 120 |
+ } while (end > ff_ac3_band_start_tab[band]); |
|
| 121 | 121 |
} |
| 122 | 122 |
|
| 123 | 123 |
int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd, |
| ... | ... |
@@ -132,8 +132,8 @@ int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd, |
| 132 | 132 |
int lowcomp, fastleak, slowleak; |
| 133 | 133 |
|
| 134 | 134 |
/* excitation function */ |
| 135 |
- band_start = bin_to_band_tab[start]; |
|
| 136 |
- band_end = bin_to_band_tab[end-1] + 1; |
|
| 135 |
+ band_start = ff_ac3_bin_to_band_tab[start]; |
|
| 136 |
+ band_end = ff_ac3_bin_to_band_tab[end-1] + 1; |
|
| 137 | 137 |
|
| 138 | 138 |
if (band_start == 0) {
|
| 139 | 139 |
lowcomp = 0; |
| ... | ... |
@@ -212,30 +212,6 @@ int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd, |
| 212 | 212 |
return 0; |
| 213 | 213 |
} |
| 214 | 214 |
|
| 215 |
-void ff_ac3_bit_alloc_calc_bap(int16_t *mask, int16_t *psd, int start, int end, |
|
| 216 |
- int snr_offset, int floor, |
|
| 217 |
- const uint8_t *bap_tab, uint8_t *bap) |
|
| 218 |
-{
|
|
| 219 |
- int bin, band; |
|
| 220 |
- |
|
| 221 |
- /* special case, if snr offset is -960, set all bap's to zero */ |
|
| 222 |
- if (snr_offset == -960) {
|
|
| 223 |
- memset(bap, 0, AC3_MAX_COEFS); |
|
| 224 |
- return; |
|
| 225 |
- } |
|
| 226 |
- |
|
| 227 |
- bin = start; |
|
| 228 |
- band = bin_to_band_tab[start]; |
|
| 229 |
- do {
|
|
| 230 |
- int m = (FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor; |
|
| 231 |
- int band_end = FFMIN(band_start_tab[band+1], end); |
|
| 232 |
- for (; bin < band_end; bin++) {
|
|
| 233 |
- int address = av_clip((psd[bin] - m) >> 5, 0, 63); |
|
| 234 |
- bap[bin] = bap_tab[address]; |
|
| 235 |
- } |
|
| 236 |
- } while (end > band_start_tab[band++]); |
|
| 237 |
-} |
|
| 238 |
- |
|
| 239 | 215 |
/** |
| 240 | 216 |
* Initialize some tables. |
| 241 | 217 |
* note: This function must remain thread safe because it is called by the |
| ... | ... |
@@ -244,12 +220,12 @@ void ff_ac3_bit_alloc_calc_bap(int16_t *mask, int16_t *psd, int start, int end, |
| 244 | 244 |
av_cold void ff_ac3_common_init(void) |
| 245 | 245 |
{
|
| 246 | 246 |
#if !CONFIG_HARDCODED_TABLES |
| 247 |
- /* compute bin_to_band_tab from band_start_tab */ |
|
| 247 |
+ /* compute ff_ac3_bin_to_band_tab from ff_ac3_band_start_tab */ |
|
| 248 | 248 |
int bin = 0, band; |
| 249 | 249 |
for (band = 0; band < AC3_CRITICAL_BANDS; band++) {
|
| 250 |
- int band_end = band_start_tab[band+1]; |
|
| 250 |
+ int band_end = ff_ac3_band_start_tab[band+1]; |
|
| 251 | 251 |
while (bin < band_end) |
| 252 |
- bin_to_band_tab[bin++] = band; |
|
| 252 |
+ ff_ac3_bin_to_band_tab[bin++] = band; |
|
| 253 | 253 |
} |
| 254 | 254 |
#endif /* !CONFIG_HARDCODED_TABLES */ |
| 255 | 255 |
} |
| ... | ... |
@@ -175,23 +175,4 @@ int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd, |
| 175 | 175 |
uint8_t *dba_lengths, uint8_t *dba_values, |
| 176 | 176 |
int16_t *mask); |
| 177 | 177 |
|
| 178 |
-/** |
|
| 179 |
- * Calculate bit allocation pointers. |
|
| 180 |
- * The SNR is the difference between the masking curve and the signal. AC-3 |
|
| 181 |
- * uses this value for each frequency bin to allocate bits. The snroffset |
|
| 182 |
- * parameter is a global adjustment to the SNR for all bins. |
|
| 183 |
- * |
|
| 184 |
- * @param[in] mask masking curve |
|
| 185 |
- * @param[in] psd signal power for each frequency bin |
|
| 186 |
- * @param[in] start starting bin location |
|
| 187 |
- * @param[in] end ending bin location |
|
| 188 |
- * @param[in] snr_offset SNR adjustment |
|
| 189 |
- * @param[in] floor noise floor |
|
| 190 |
- * @param[in] bap_tab look-up table for bit allocation pointers |
|
| 191 |
- * @param[out] bap bit allocation pointers |
|
| 192 |
- */ |
|
| 193 |
-void ff_ac3_bit_alloc_calc_bap(int16_t *mask, int16_t *psd, int start, int end, |
|
| 194 |
- int snr_offset, int floor, |
|
| 195 |
- const uint8_t *bap_tab, uint8_t *bap); |
|
| 196 |
- |
|
| 197 | 178 |
#endif /* AVCODEC_AC3_H */ |
| ... | ... |
@@ -184,6 +184,7 @@ static av_cold int ac3_decode_init(AVCodecContext *avctx) |
| 184 | 184 |
ff_mdct_init(&s->imdct_512, 9, 1, 1.0); |
| 185 | 185 |
ff_kbd_window_init(s->window, 5.0, 256); |
| 186 | 186 |
dsputil_init(&s->dsp, avctx); |
| 187 |
+ ff_ac3dsp_init(&s->ac3dsp, avctx->flags & CODEC_FLAG_BITEXACT); |
|
| 187 | 188 |
ff_fmt_convert_init(&s->fmt_conv, avctx); |
| 188 | 189 |
av_lfg_init(&s->dith_state, 0); |
| 189 | 190 |
|
| ... | ... |
@@ -1213,7 +1214,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk) |
| 1213 | 1213 |
/* Compute bit allocation */ |
| 1214 | 1214 |
const uint8_t *bap_tab = s->channel_uses_aht[ch] ? |
| 1215 | 1215 |
ff_eac3_hebap_tab : ff_ac3_bap_tab; |
| 1216 |
- ff_ac3_bit_alloc_calc_bap(s->mask[ch], s->psd[ch], |
|
| 1216 |
+ s->ac3dsp.bit_alloc_calc_bap(s->mask[ch], s->psd[ch], |
|
| 1217 | 1217 |
s->start_freq[ch], s->end_freq[ch], |
| 1218 | 1218 |
s->snr_offset[ch], |
| 1219 | 1219 |
s->bit_alloc_params.floor, |
| ... | ... |
@@ -52,6 +52,7 @@ |
| 52 | 52 |
|
| 53 | 53 |
#include "libavutil/lfg.h" |
| 54 | 54 |
#include "ac3.h" |
| 55 |
+#include "ac3dsp.h" |
|
| 55 | 56 |
#include "get_bits.h" |
| 56 | 57 |
#include "dsputil.h" |
| 57 | 58 |
#include "fft.h" |
| ... | ... |
@@ -192,6 +193,7 @@ typedef struct {
|
| 192 | 192 |
|
| 193 | 193 |
///@defgroup opt optimization |
| 194 | 194 |
DSPContext dsp; ///< for optimization |
| 195 |
+ AC3DSPContext ac3dsp; |
|
| 195 | 196 |
FmtConvertContext fmt_conv; ///< optimized conversion functions |
| 196 | 197 |
float mul_bias; ///< scaling for float_to_int16 conversion |
| 197 | 198 |
///@} |
| ... | ... |
@@ -20,6 +20,7 @@ |
| 20 | 20 |
*/ |
| 21 | 21 |
|
| 22 | 22 |
#include "avcodec.h" |
| 23 |
+#include "ac3.h" |
|
| 23 | 24 |
#include "ac3dsp.h" |
| 24 | 25 |
|
| 25 | 26 |
static void ac3_exponent_min_c(uint8_t *exp, int num_reuse_blocks, int nb_coefs) |
| ... | ... |
@@ -101,6 +102,53 @@ static void float_to_fixed24_c(int32_t *dst, const float *src, unsigned int len) |
| 101 | 101 |
} while (len > 0); |
| 102 | 102 |
} |
| 103 | 103 |
|
| 104 |
+static void ac3_bit_alloc_calc_bap_c(int16_t *mask, int16_t *psd, |
|
| 105 |
+ int start, int end, |
|
| 106 |
+ int snr_offset, int floor, |
|
| 107 |
+ const uint8_t *bap_tab, uint8_t *bap) |
|
| 108 |
+{
|
|
| 109 |
+ int bin, band; |
|
| 110 |
+ |
|
| 111 |
+ /* special case, if snr offset is -960, set all bap's to zero */ |
|
| 112 |
+ if (snr_offset == -960) {
|
|
| 113 |
+ memset(bap, 0, AC3_MAX_COEFS); |
|
| 114 |
+ return; |
|
| 115 |
+ } |
|
| 116 |
+ |
|
| 117 |
+ bin = start; |
|
| 118 |
+ band = ff_ac3_bin_to_band_tab[start]; |
|
| 119 |
+ do {
|
|
| 120 |
+ int m = (FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor; |
|
| 121 |
+ int band_end = FFMIN(ff_ac3_band_start_tab[band+1], end); |
|
| 122 |
+ for (; bin < band_end; bin++) {
|
|
| 123 |
+ int address = av_clip((psd[bin] - m) >> 5, 0, 63); |
|
| 124 |
+ bap[bin] = bap_tab[address]; |
|
| 125 |
+ } |
|
| 126 |
+ } while (end > ff_ac3_band_start_tab[band++]); |
|
| 127 |
+} |
|
| 128 |
+ |
|
| 129 |
+static int ac3_compute_mantissa_size_c(int mant_cnt[5], uint8_t *bap, |
|
| 130 |
+ int nb_coefs) |
|
| 131 |
+{
|
|
| 132 |
+ int bits, b, i; |
|
| 133 |
+ |
|
| 134 |
+ bits = 0; |
|
| 135 |
+ for (i = 0; i < nb_coefs; i++) {
|
|
| 136 |
+ b = bap[i]; |
|
| 137 |
+ if (b <= 4) {
|
|
| 138 |
+ // bap=1 to bap=4 will be counted in compute_mantissa_size_final |
|
| 139 |
+ mant_cnt[b]++; |
|
| 140 |
+ } else if (b <= 13) {
|
|
| 141 |
+ // bap=5 to bap=13 use (bap-1) bits |
|
| 142 |
+ bits += b - 1; |
|
| 143 |
+ } else {
|
|
| 144 |
+ // bap=14 uses 14 bits and bap=15 uses 16 bits |
|
| 145 |
+ bits += (b == 14) ? 14 : 16; |
|
| 146 |
+ } |
|
| 147 |
+ } |
|
| 148 |
+ return bits; |
|
| 149 |
+} |
|
| 150 |
+ |
|
| 104 | 151 |
av_cold void ff_ac3dsp_init(AC3DSPContext *c, int bit_exact) |
| 105 | 152 |
{
|
| 106 | 153 |
c->ac3_exponent_min = ac3_exponent_min_c; |
| ... | ... |
@@ -108,6 +156,8 @@ av_cold void ff_ac3dsp_init(AC3DSPContext *c, int bit_exact) |
| 108 | 108 |
c->ac3_lshift_int16 = ac3_lshift_int16_c; |
| 109 | 109 |
c->ac3_rshift_int32 = ac3_rshift_int32_c; |
| 110 | 110 |
c->float_to_fixed24 = float_to_fixed24_c; |
| 111 |
+ c->bit_alloc_calc_bap = ac3_bit_alloc_calc_bap_c; |
|
| 112 |
+ c->compute_mantissa_size = ac3_compute_mantissa_size_c; |
|
| 111 | 113 |
|
| 112 | 114 |
if (ARCH_ARM) |
| 113 | 115 |
ff_ac3dsp_init_arm(c, bit_exact); |
| ... | ... |
@@ -81,6 +81,30 @@ typedef struct AC3DSPContext {
|
| 81 | 81 |
* constraints: multiple of 32 greater than zero |
| 82 | 82 |
*/ |
| 83 | 83 |
void (*float_to_fixed24)(int32_t *dst, const float *src, unsigned int len); |
| 84 |
+ |
|
| 85 |
+ /** |
|
| 86 |
+ * Calculate bit allocation pointers. |
|
| 87 |
+ * The SNR is the difference between the masking curve and the signal. AC-3 |
|
| 88 |
+ * uses this value for each frequency bin to allocate bits. The snroffset |
|
| 89 |
+ * parameter is a global adjustment to the SNR for all bins. |
|
| 90 |
+ * |
|
| 91 |
+ * @param[in] mask masking curve |
|
| 92 |
+ * @param[in] psd signal power for each frequency bin |
|
| 93 |
+ * @param[in] start starting bin location |
|
| 94 |
+ * @param[in] end ending bin location |
|
| 95 |
+ * @param[in] snr_offset SNR adjustment |
|
| 96 |
+ * @param[in] floor noise floor |
|
| 97 |
+ * @param[in] bap_tab look-up table for bit allocation pointers |
|
| 98 |
+ * @param[out] bap bit allocation pointers |
|
| 99 |
+ */ |
|
| 100 |
+ void (*bit_alloc_calc_bap)(int16_t *mask, int16_t *psd, int start, int end, |
|
| 101 |
+ int snr_offset, int floor, |
|
| 102 |
+ const uint8_t *bap_tab, uint8_t *bap); |
|
| 103 |
+ |
|
| 104 |
+ /** |
|
| 105 |
+ * Calculate the number of bits needed to encode a set of mantissas. |
|
| 106 |
+ */ |
|
| 107 |
+ int (*compute_mantissa_size)(int mant_cnt[5], uint8_t *bap, int nb_coefs); |
|
| 84 | 108 |
} AC3DSPContext; |
| 85 | 109 |
|
| 86 | 110 |
void ff_ac3dsp_init (AC3DSPContext *c, int bit_exact); |
| ... | ... |
@@ -178,10 +178,6 @@ typedef struct AC3EncodeContext {
|
| 178 | 178 |
int frame_bits; ///< all frame bits except exponents and mantissas |
| 179 | 179 |
int exponent_bits; ///< number of bits used for exponents |
| 180 | 180 |
|
| 181 |
- /* mantissa encoding */ |
|
| 182 |
- int mant1_cnt, mant2_cnt, mant4_cnt; ///< mantissa counts for bap=1,2,4 |
|
| 183 |
- uint16_t *qmant1_ptr, *qmant2_ptr, *qmant4_ptr; ///< mantissa pointers for bap=1,2,4 |
|
| 184 |
- |
|
| 185 | 181 |
SampleType **planar_samples; |
| 186 | 182 |
uint8_t *bap_buffer; |
| 187 | 183 |
uint8_t *bap1_buffer; |
| ... | ... |
@@ -199,6 +195,10 @@ typedef struct AC3EncodeContext {
|
| 199 | 199 |
DECLARE_ALIGNED(16, SampleType, windowed_samples)[AC3_WINDOW_SIZE]; |
| 200 | 200 |
} AC3EncodeContext; |
| 201 | 201 |
|
| 202 |
+typedef struct AC3Mant {
|
|
| 203 |
+ uint16_t *qmant1_ptr, *qmant2_ptr, *qmant4_ptr; ///< mantissa pointers for bap=1,2,4 |
|
| 204 |
+ int mant1_cnt, mant2_cnt, mant4_cnt; ///< mantissa counts for bap=1,2,4 |
|
| 205 |
+} AC3Mant; |
|
| 202 | 206 |
|
| 203 | 207 |
#define CMIXLEV_NUM_OPTIONS 3 |
| 204 | 208 |
static const float cmixlev_options[CMIXLEV_NUM_OPTIONS] = {
|
| ... | ... |
@@ -928,31 +928,6 @@ static void count_frame_bits(AC3EncodeContext *s) |
| 928 | 928 |
|
| 929 | 929 |
|
| 930 | 930 |
/** |
| 931 |
- * Calculate the number of bits needed to encode a set of mantissas. |
|
| 932 |
- */ |
|
| 933 |
-static int compute_mantissa_size(int mant_cnt[5], uint8_t *bap, int nb_coefs) |
|
| 934 |
-{
|
|
| 935 |
- int bits, b, i; |
|
| 936 |
- |
|
| 937 |
- bits = 0; |
|
| 938 |
- for (i = 0; i < nb_coefs; i++) {
|
|
| 939 |
- b = bap[i]; |
|
| 940 |
- if (b <= 4) {
|
|
| 941 |
- // bap=1 to bap=4 will be counted in compute_mantissa_size_final |
|
| 942 |
- mant_cnt[b]++; |
|
| 943 |
- } else if (b <= 13) {
|
|
| 944 |
- // bap=5 to bap=13 use (bap-1) bits |
|
| 945 |
- bits += b - 1; |
|
| 946 |
- } else {
|
|
| 947 |
- // bap=14 uses 14 bits and bap=15 uses 16 bits |
|
| 948 |
- bits += (b == 14) ? 14 : 16; |
|
| 949 |
- } |
|
| 950 |
- } |
|
| 951 |
- return bits; |
|
| 952 |
-} |
|
| 953 |
- |
|
| 954 |
- |
|
| 955 |
-/** |
|
| 956 | 931 |
* Finalize the mantissa bit count by adding in the grouped mantissas. |
| 957 | 932 |
*/ |
| 958 | 933 |
static int compute_mantissa_size_final(int mant_cnt[5]) |
| ... | ... |
@@ -1047,12 +1022,12 @@ static int bit_alloc(AC3EncodeContext *s, int snr_offset) |
| 1047 | 1047 |
whenever we reuse exponents. */ |
| 1048 | 1048 |
block = s->blocks[blk].exp_ref_block[ch]; |
| 1049 | 1049 |
if (s->exp_strategy[ch][blk] != EXP_REUSE) {
|
| 1050 |
- ff_ac3_bit_alloc_calc_bap(block->mask[ch], block->psd[ch], 0, |
|
| 1050 |
+ s->ac3dsp.bit_alloc_calc_bap(block->mask[ch], block->psd[ch], 0, |
|
| 1051 | 1051 |
s->nb_coefs[ch], snr_offset, |
| 1052 | 1052 |
s->bit_alloc.floor, ff_ac3_bap_tab, |
| 1053 | 1053 |
block->bap[ch]); |
| 1054 | 1054 |
} |
| 1055 |
- mantissa_bits += compute_mantissa_size(mant_cnt, block->bap[ch], s->nb_coefs[ch]); |
|
| 1055 |
+ mantissa_bits += s->ac3dsp.compute_mantissa_size(mant_cnt, block->bap[ch], s->nb_coefs[ch]); |
|
| 1056 | 1056 |
} |
| 1057 | 1057 |
mantissa_bits += compute_mantissa_size_final(mant_cnt); |
| 1058 | 1058 |
} |
| ... | ... |
@@ -1248,7 +1223,7 @@ static inline int asym_quant(int c, int e, int qbits) |
| 1248 | 1248 |
/** |
| 1249 | 1249 |
* Quantize a set of mantissas for a single channel in a single block. |
| 1250 | 1250 |
*/ |
| 1251 |
-static void quantize_mantissas_blk_ch(AC3EncodeContext *s, int32_t *fixed_coef, |
|
| 1251 |
+static void quantize_mantissas_blk_ch(AC3Mant *s, int32_t *fixed_coef, |
|
| 1252 | 1252 |
uint8_t *exp, |
| 1253 | 1253 |
uint8_t *bap, uint16_t *qmant, int n) |
| 1254 | 1254 |
{
|
| ... | ... |
@@ -1350,12 +1325,11 @@ static void quantize_mantissas(AC3EncodeContext *s) |
| 1350 | 1350 |
for (blk = 0; blk < AC3_MAX_BLOCKS; blk++) {
|
| 1351 | 1351 |
AC3Block *block = &s->blocks[blk]; |
| 1352 | 1352 |
AC3Block *ref_block; |
| 1353 |
- s->mant1_cnt = s->mant2_cnt = s->mant4_cnt = 0; |
|
| 1354 |
- s->qmant1_ptr = s->qmant2_ptr = s->qmant4_ptr = NULL; |
|
| 1353 |
+ AC3Mant m = { 0 };
|
|
| 1355 | 1354 |
|
| 1356 | 1355 |
for (ch = 0; ch < s->channels; ch++) {
|
| 1357 | 1356 |
ref_block = block->exp_ref_block[ch]; |
| 1358 |
- quantize_mantissas_blk_ch(s, block->fixed_coef[ch], |
|
| 1357 |
+ quantize_mantissas_blk_ch(&m, block->fixed_coef[ch], |
|
| 1359 | 1358 |
ref_block->exp[ch], ref_block->bap[ch], |
| 1360 | 1359 |
block->qmant[ch], s->nb_coefs[ch]); |
| 1361 | 1360 |
} |
| ... | ... |
@@ -25,6 +25,12 @@ |
| 25 | 25 |
#include "libavutil/common.h" |
| 26 | 26 |
#include "ac3.h" |
| 27 | 27 |
|
| 28 |
+#if CONFIG_HARDCODED_TABLES |
|
| 29 |
+# define HCONST const |
|
| 30 |
+#else |
|
| 31 |
+# define HCONST |
|
| 32 |
+#endif |
|
| 33 |
+ |
|
| 28 | 34 |
extern const uint16_t ff_ac3_frame_size_tab[38][3]; |
| 29 | 35 |
extern const uint8_t ff_ac3_channels_tab[8]; |
| 30 | 36 |
extern const uint16_t ff_ac3_channel_layout_tab[8]; |
| ... | ... |
@@ -44,6 +50,8 @@ extern const uint16_t ff_ac3_db_per_bit_tab[4]; |
| 44 | 44 |
extern const int16_t ff_ac3_floor_tab[8]; |
| 45 | 45 |
extern const uint16_t ff_ac3_fast_gain_tab[8]; |
| 46 | 46 |
extern const uint16_t ff_eac3_default_chmap[8]; |
| 47 |
+extern const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1]; |
|
| 48 |
+extern HCONST uint8_t ff_ac3_bin_to_band_tab[253]; |
|
| 47 | 49 |
|
| 48 | 50 |
/** Custom channel map locations bitmask |
| 49 | 51 |
* Other channels described in documentation: |
| ... | ... |
@@ -27,6 +27,7 @@ void ff_ac3_exponent_min_neon(uint8_t *exp, int num_reuse_blocks, int nb_coefs); |
| 27 | 27 |
int ff_ac3_max_msb_abs_int16_neon(const int16_t *src, int len); |
| 28 | 28 |
void ff_ac3_lshift_int16_neon(int16_t *src, unsigned len, unsigned shift); |
| 29 | 29 |
void ff_ac3_rshift_int32_neon(int32_t *src, unsigned len, unsigned shift); |
| 30 |
+void ff_float_to_fixed24_neon(int32_t *dst, const float *src, unsigned int len); |
|
| 30 | 31 |
|
| 31 | 32 |
av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact) |
| 32 | 33 |
{
|
| ... | ... |
@@ -35,5 +36,6 @@ av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact) |
| 35 | 35 |
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_neon; |
| 36 | 36 |
c->ac3_lshift_int16 = ff_ac3_lshift_int16_neon; |
| 37 | 37 |
c->ac3_rshift_int32 = ff_ac3_rshift_int32_neon; |
| 38 |
+ c->float_to_fixed24 = ff_float_to_fixed24_neon; |
|
| 38 | 39 |
} |
| 39 | 40 |
} |
| ... | ... |
@@ -78,3 +78,17 @@ function ff_ac3_rshift_int32_neon, export=1 |
| 78 | 78 |
bgt 1b |
| 79 | 79 |
bx lr |
| 80 | 80 |
endfunc |
| 81 |
+ |
|
| 82 |
+function ff_float_to_fixed24_neon, export=1 |
|
| 83 |
+1: vld1.32 {q0-q1}, [r1,:128]!
|
|
| 84 |
+ vcvt.s32.f32 q0, q0, #24 |
|
| 85 |
+ vld1.32 {q2-q3}, [r1,:128]!
|
|
| 86 |
+ vcvt.s32.f32 q1, q1, #24 |
|
| 87 |
+ vcvt.s32.f32 q2, q2, #24 |
|
| 88 |
+ vst1.32 {q0-q1}, [r0,:128]!
|
|
| 89 |
+ vcvt.s32.f32 q3, q3, #24 |
|
| 90 |
+ vst1.32 {q2-q3}, [r0,:128]!
|
|
| 91 |
+ subs r2, r2, #16 |
|
| 92 |
+ bgt 1b |
|
| 93 |
+ bx lr |
|
| 94 |
+endfunc |
| ... | ... |
@@ -81,7 +81,7 @@ static int decode_tsw1(uint8_t *frame, int width, int height, |
| 81 | 81 |
v = bytestream_get_le16(&src); |
| 82 | 82 |
offset = (v & 0x1FFF) << 1; |
| 83 | 83 |
count = ((v >> 13) + 2) << 1; |
| 84 |
- if (frame - offset < frame_start || frame_end - frame < count) |
|
| 84 |
+ if (frame - frame_start < offset || frame_end - frame < count) |
|
| 85 | 85 |
return -1; |
| 86 | 86 |
av_memcpy_backptr(frame, offset, count); |
| 87 | 87 |
frame += count; |
| ... | ... |
@@ -117,7 +117,7 @@ static int decode_dsw1(uint8_t *frame, int width, int height, |
| 117 | 117 |
v = bytestream_get_le16(&src); |
| 118 | 118 |
offset = (v & 0x1FFF) << 1; |
| 119 | 119 |
count = ((v >> 13) + 2) << 1; |
| 120 |
- if (frame - offset < frame_start || frame_end - frame < count) |
|
| 120 |
+ if (frame - frame_start < offset || frame_end - frame < count) |
|
| 121 | 121 |
return -1; |
| 122 | 122 |
// can't use av_memcpy_backptr() since it can overwrite following pixels |
| 123 | 123 |
for (v = 0; v < count; v++) |
| ... | ... |
@@ -157,7 +157,7 @@ static int decode_dds1(uint8_t *frame, int width, int height, |
| 157 | 157 |
v = bytestream_get_le16(&src); |
| 158 | 158 |
offset = (v & 0x1FFF) << 2; |
| 159 | 159 |
count = ((v >> 13) + 2) << 1; |
| 160 |
- if (frame - offset < frame_start || frame_end - frame < count*2 + width) |
|
| 160 |
+ if (frame - frame_start < offset || frame_end - frame < count*2 + width) |
|
| 161 | 161 |
return -1; |
| 162 | 162 |
for (i = 0; i < count; i++) {
|
| 163 | 163 |
frame[0] = frame[1] = |
| ... | ... |
@@ -60,7 +60,6 @@ distclean:: clean |
| 60 | 60 |
install-lib$(NAME)-shared: $(SUBDIR)$(SLIBNAME) |
| 61 | 61 |
$(Q)mkdir -p "$(SHLIBDIR)" |
| 62 | 62 |
$$(INSTALL) -m 755 $$< "$(SHLIBDIR)/$(SLIBNAME_WITH_VERSION)" |
| 63 |
- $$(STRIP) "$(SHLIBDIR)/$(SLIBNAME_WITH_VERSION)" |
|
| 64 | 63 |
$(Q)cd "$(SHLIBDIR)" && \ |
| 65 | 64 |
$(LN_S) $(SLIBNAME_WITH_VERSION) $(SLIBNAME_WITH_MAJOR) |
| 66 | 65 |
$(Q)cd "$(SHLIBDIR)" && \ |