avutil: Make LZO decoder code configure-time selectable

configure

@@ -120,6 +120,7 @@ Component options:
   --disable-dct            disable DCT code
   --disable-dwt            disable DWT code
   --disable-lsp            disable LSP code
+  --disable-lzo            disable LZO decoder code
   --disable-mdct           disable MDCT code
   --disable-rdft           disable RDFT code
   --disable-fft            disable FFT code
@@ -1029,6 +1030,7 @@ CONFIG_LIST="
     libxavs
     libxvid
     lsp
+    lzo
     mdct
     memalign_hack
     network
@@ -1437,6 +1439,7 @@ binkaudio_dct_decoder_select="mdct rdft dct sinewin"
 binkaudio_rdft_decoder_select="mdct rdft sinewin"
 cavs_decoder_select="golomb mpegvideo"
 cook_decoder_select="mdct sinewin"
+cscd_decoder_select="lzo"
 cscd_decoder_suggest="zlib"
 dca_decoder_select="mdct"
 dnxhd_encoder_select="aandcttables mpegvideoenc"
@@ -1516,6 +1519,7 @@ msmpeg4v3_encoder_select="h263_encoder"
 mss2_decoder_select="vc1_decoder"
 nellymoser_decoder_select="mdct sinewin"
 nellymoser_encoder_select="mdct sinewin"
+nuv_decoder_select="lzo"
 png_decoder_select="zlib"
 png_encoder_select="zlib"
 qcelp_decoder_select="lsp"
@@ -1628,7 +1632,7 @@ eac3_demuxer_select="ac3_parser"
 flac_demuxer_select="flac_parser"
 ipod_muxer_select="mov_muxer"
 matroska_audio_muxer_select="matroska_muxer"
-matroska_demuxer_suggest="zlib bzlib"
+matroska_demuxer_suggest="bzlib lzo zlib"
 mov_demuxer_suggest="zlib"
 mp3_demuxer_select="mpegaudio_parser"
 mp4_muxer_select="mov_muxer"

libavformat/matroskadec.c

@@ -1011,6 +1011,7 @@ static int matroska_decode_buffer(uint8_t** buf, int* buf_size,
         memcpy(pkt_data + header_size, data, isize);
         break;
     }
+#if CONFIG_LZO
     case MATROSKA_TRACK_ENCODING_COMP_LZO:
         do {
             olen = pkt_size *= 3;
@@ -1028,6 +1029,7 @@ static int matroska_decode_buffer(uint8_t** buf, int* buf_size,
         }
         pkt_size -= olen;
         break;
+#endif
 #if CONFIG_ZLIB
     case MATROSKA_TRACK_ENCODING_COMP_ZLIB: {
         z_stream zstream = {0};
@@ -1436,14 +1438,17 @@ static int matroska_read_header(AVFormatContext *s)
                    "Multiple combined encodings not supported");
         } else if (encodings_list->nb_elem == 1) {
             if (encodings[0].type ||
-                (encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP &&
+                (
 #if CONFIG_ZLIB
                  encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_ZLIB &&
 #endif
 #if CONFIG_BZLIB
                  encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_BZLIB &&
 #endif
-                 encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_LZO)) {
+#if CONFIG_LZO
+                 encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_LZO &&
+#endif
+                 encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP)) {
                 encodings[0].scope = 0;
                 av_log(matroska->ctx, AV_LOG_ERROR,
                        "Unsupported encoding type");

libavutil/Makefile

@@ -24,7 +24,6 @@ HEADERS = adler32.h                                                     \
           intreadwrite.h                                                \
           lfg.h                                                         \
           log.h                                                         \
-          lzo.h                                                         \
           mathematics.h                                                 \
           md5.h                                                         \
           mem.h                                                         \
@@ -42,6 +41,8 @@ HEADERS = adler32.h                                                     \
           version.h                                                     \
           xtea.h                                                        \
 
+HEADERS-$(CONFIG_LZO)                   += lzo.h
+
 ARCH_HEADERS = bswap.h                                                  \
                intmath.h                                                \
                intreadwrite.h                                           \
@@ -71,7 +72,6 @@ OBJS = adler32.o                                                        \
        log.o                                                            \
        log2.o                                                           \
        log2_tab.o                                                       \
-       lzo.o                                                            \
        mathematics.o                                                    \
        md5.o                                                            \
        mem.o                                                            \
@@ -89,6 +89,8 @@ OBJS = adler32.o                                                        \
        utils.o                                                          \
        xtea.o                                                           \
 
+OBJS-$(CONFIG_LZO)                      += lzo.o
+
 OBJS += $(COMPAT_OBJS:%=../compat/%)
 
 SKIPHEADERS          = old_pix_fmts.h