code from www.metakine.com.
CAUTION : the code is currently very ugly, with static variables, no
code convention, etc. I check it in "as is" because it may be useful
to some people.
Don't expect a bitrate reduction of more than 30 % with acceptable
quality.
* modules/demux/mpeg/ts.c: Useful debug message
dnl Autoconf settings for vlc
-dnl $Id: configure.ac,v 1.105 2003/11/06 16:36:40 nitrox Exp $
+dnl $Id: configure.ac,v 1.106 2003/11/07 21:30:52 massiot Exp $
AC_INIT(vlc,0.6.3-cvs)
AX_ADD_LDFLAGS([adjust distort a52tofloat32],[-lm])
])
AC_CHECK_LIB(m,pow,[
- AX_ADD_LDFLAGS([ffmpeg stream_out_transcode i420_rgb faad],[-lm])
+ AX_ADD_LDFLAGS([ffmpeg stream_out_transcode stream_out_transrate i420_rgb faad],[-lm])
])
AC_CHECK_LIB(m,sqrt,[
AX_ADD_LDFLAGS([headphone_channel_mixer],[-lm])
AX_ADD_PLUGINS([stream_out_dummy stream_out_standard stream_out_es stream_out_rtp])
AX_ADD_PLUGINS([stream_out_duplicate stream_out_display stream_out_gather])
+ AX_ADD_PLUGINS([stream_out_transrate])
dnl Ogg and vorbis are handled in their respective section
fi
modules/mux/mpeg/Makefile
modules/packetizer/Makefile
modules/stream_out/Makefile
+ modules/stream_out/transrate/Makefile
modules/video_chroma/Makefile
modules/video_filter/Makefile
modules/video_filter/deinterlace/Makefile
* mpeg_ts.c : Transport Stream input module for vlc
*****************************************************************************
* Copyright (C) 2000-2001 VideoLAN
- * $Id: ts.c,v 1.41 2003/11/06 20:12:37 gbazin Exp $
+ * $Id: ts.c,v 1.42 2003/11/07 21:30:52 massiot Exp $
*
* Authors: Henri Fallon <henri@via.ecp.fr>
* Johan Bilien <jobi@via.ecp.fr>
memset( &demux_data, 0, sizeof(es_ts_data_t) );
*psz_desc = 0;
+ msg_Dbg( p_input, "new PID 0x%x stream type 0x%x",
+ p_es->i_pid, p_es->i_type );
switch( p_es->i_type )
{
--- /dev/null
+SOURCES_stream_out_transrate = transrate.c
--- /dev/null
+
+/* macroblock modes */
+#define MACROBLOCK_INTRA 1
+#define MACROBLOCK_PATTERN 2
+#define MACROBLOCK_MOTION_BACKWARD 4
+#define MACROBLOCK_MOTION_FORWARD 8
+#define MACROBLOCK_QUANT 16
+#define DCT_TYPE_INTERLACED 32
+
+/* motion_type */
+#define MOTION_TYPE_MASK (3*64)
+#define MOTION_TYPE_BASE 64
+#define MC_FIELD (1*64)
+#define MC_FRAME (2*64)
+#define MC_16X8 (2*64)
+#define MC_DMV (3*64)
+
+/* picture structure */
+#define TOP_FIELD 1
+#define BOTTOM_FIELD 2
+#define FRAME_PICTURE 3
+
+/* remove num valid bits from bit_buf */
+#define DUMPBITS(bit_buf,bits,num) Flush_Bits(num)
+#define COPYBITS(bit_buf,bits,num) Copy_Bits(num)
+
+/* take num bits from the high part of bit_buf and zero extend them */
+#define UBITS(bit_buf,num) (((uint32_t)(inbitbuf)) >> (32 - (num)))
+
+/* take num bits from the high part of bit_buf and sign extend them */
+#define SBITS(bit_buf,num) (((int32_t)(inbitbuf)) >> (32 - (num)))
+
+typedef struct {
+ uint8_t modes;
+ uint8_t len;
+} MBtab;
+
+typedef struct {
+ uint8_t delta;
+ uint8_t len;
+} MVtab;
+
+typedef struct {
+ int8_t dmv;
+ uint8_t len;
+} DMVtab;
+
+typedef struct {
+ uint8_t cbp;
+ uint8_t len;
+} CBPtab;
+
+typedef struct {
+ uint8_t size;
+ uint8_t len;
+} DCtab;
+
+typedef struct {
+ uint8_t run;
+ uint8_t level;
+ uint8_t len;
+} DCTtab;
+
+typedef struct {
+ uint8_t mba;
+ uint8_t len;
+} MBAtab;
+
+
+#define INTRA MACROBLOCK_INTRA
+#define QUANT MACROBLOCK_QUANT
+
+static const MBtab MB_I [] = {
+ {INTRA|QUANT, 2}, {INTRA, 1}
+};
+
+#define MC MACROBLOCK_MOTION_FORWARD
+#define CODED MACROBLOCK_PATTERN
+
+static const MBtab MB_P [] = {
+ {INTRA|QUANT, 6}, {CODED|QUANT, 5}, {MC|CODED|QUANT, 5}, {INTRA, 5},
+ {MC, 3}, {MC, 3}, {MC, 3}, {MC, 3},
+ {CODED, 2}, {CODED, 2}, {CODED, 2}, {CODED, 2},
+ {CODED, 2}, {CODED, 2}, {CODED, 2}, {CODED, 2},
+ {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1},
+ {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1},
+ {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1},
+ {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}
+};
+
+#define FWD MACROBLOCK_MOTION_FORWARD
+#define BWD MACROBLOCK_MOTION_BACKWARD
+#define INTER MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD
+
+static const MBtab MB_B [] = {
+ {0, 0}, {INTRA|QUANT, 6},
+ {BWD|CODED|QUANT, 6}, {FWD|CODED|QUANT, 6},
+ {INTER|CODED|QUANT, 5}, {INTER|CODED|QUANT, 5},
+ {INTRA, 5}, {INTRA, 5},
+ {FWD, 4}, {FWD, 4}, {FWD, 4}, {FWD, 4},
+ {FWD|CODED, 4}, {FWD|CODED, 4}, {FWD|CODED, 4}, {FWD|CODED, 4},
+ {BWD, 3}, {BWD, 3}, {BWD, 3}, {BWD, 3},
+ {BWD, 3}, {BWD, 3}, {BWD, 3}, {BWD, 3},
+ {BWD|CODED, 3}, {BWD|CODED, 3}, {BWD|CODED, 3}, {BWD|CODED, 3},
+ {BWD|CODED, 3}, {BWD|CODED, 3}, {BWD|CODED, 3}, {BWD|CODED, 3},
+ {INTER, 2}, {INTER, 2}, {INTER, 2}, {INTER, 2},
+ {INTER, 2}, {INTER, 2}, {INTER, 2}, {INTER, 2},
+ {INTER, 2}, {INTER, 2}, {INTER, 2}, {INTER, 2},
+ {INTER, 2}, {INTER, 2}, {INTER, 2}, {INTER, 2},
+ {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2},
+ {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2},
+ {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2},
+ {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}
+};
+
+#undef INTRA
+#undef QUANT
+#undef MC
+#undef CODED
+#undef FWD
+#undef BWD
+#undef INTER
+
+
+static const MVtab MV_4 [] = {
+ { 3, 6}, { 2, 4}, { 1, 3}, { 1, 3}, { 0, 2}, { 0, 2}, { 0, 2}, { 0, 2}
+};
+
+static const MVtab MV_10 [] = {
+ { 0,10}, { 0,10}, { 0,10}, { 0,10}, { 0,10}, { 0,10}, { 0,10}, { 0,10},
+ { 0,10}, { 0,10}, { 0,10}, { 0,10}, {15,10}, {14,10}, {13,10}, {12,10},
+ {11,10}, {10,10}, { 9, 9}, { 9, 9}, { 8, 9}, { 8, 9}, { 7, 9}, { 7, 9},
+ { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7},
+ { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7},
+ { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}
+};
+
+
+static const DMVtab DMV_2 [] = {
+ { 0, 1}, { 0, 1}, { 1, 2}, {-1, 2}
+};
+
+
+static const CBPtab CBP_7 [] = {
+ {0x22, 7}, {0x12, 7}, {0x0a, 7}, {0x06, 7},
+ {0x21, 7}, {0x11, 7}, {0x09, 7}, {0x05, 7},
+ {0x3f, 6}, {0x3f, 6}, {0x03, 6}, {0x03, 6},
+ {0x24, 6}, {0x24, 6}, {0x18, 6}, {0x18, 6},
+ {0x3e, 5}, {0x3e, 5}, {0x3e, 5}, {0x3e, 5},
+ {0x02, 5}, {0x02, 5}, {0x02, 5}, {0x02, 5},
+ {0x3d, 5}, {0x3d, 5}, {0x3d, 5}, {0x3d, 5},
+ {0x01, 5}, {0x01, 5}, {0x01, 5}, {0x01, 5},
+ {0x38, 5}, {0x38, 5}, {0x38, 5}, {0x38, 5},
+ {0x34, 5}, {0x34, 5}, {0x34, 5}, {0x34, 5},
+ {0x2c, 5}, {0x2c, 5}, {0x2c, 5}, {0x2c, 5},
+ {0x1c, 5}, {0x1c, 5}, {0x1c, 5}, {0x1c, 5},
+ {0x28, 5}, {0x28, 5}, {0x28, 5}, {0x28, 5},
+ {0x14, 5}, {0x14, 5}, {0x14, 5}, {0x14, 5},
+ {0x30, 5}, {0x30, 5}, {0x30, 5}, {0x30, 5},
+ {0x0c, 5}, {0x0c, 5}, {0x0c, 5}, {0x0c, 5},
+ {0x20, 4}, {0x20, 4}, {0x20, 4}, {0x20, 4},
+ {0x20, 4}, {0x20, 4}, {0x20, 4}, {0x20, 4},
+ {0x10, 4}, {0x10, 4}, {0x10, 4}, {0x10, 4},
+ {0x10, 4}, {0x10, 4}, {0x10, 4}, {0x10, 4},
+ {0x08, 4}, {0x08, 4}, {0x08, 4}, {0x08, 4},
+ {0x08, 4}, {0x08, 4}, {0x08, 4}, {0x08, 4},
+ {0x04, 4}, {0x04, 4}, {0x04, 4}, {0x04, 4},
+ {0x04, 4}, {0x04, 4}, {0x04, 4}, {0x04, 4},
+ {0x3c, 3}, {0x3c, 3}, {0x3c, 3}, {0x3c, 3},
+ {0x3c, 3}, {0x3c, 3}, {0x3c, 3}, {0x3c, 3},
+ {0x3c, 3}, {0x3c, 3}, {0x3c, 3}, {0x3c, 3},
+ {0x3c, 3}, {0x3c, 3}, {0x3c, 3}, {0x3c, 3}
+};
+
+static const CBPtab CBP_9 [] = {
+ {0, 0}, {0x00, 9}, {0x27, 9}, {0x1b, 9},
+ {0x3b, 9}, {0x37, 9}, {0x2f, 9}, {0x1f, 9},
+ {0x3a, 8}, {0x3a, 8}, {0x36, 8}, {0x36, 8},
+ {0x2e, 8}, {0x2e, 8}, {0x1e, 8}, {0x1e, 8},
+ {0x39, 8}, {0x39, 8}, {0x35, 8}, {0x35, 8},
+ {0x2d, 8}, {0x2d, 8}, {0x1d, 8}, {0x1d, 8},
+ {0x26, 8}, {0x26, 8}, {0x1a, 8}, {0x1a, 8},
+ {0x25, 8}, {0x25, 8}, {0x19, 8}, {0x19, 8},
+ {0x2b, 8}, {0x2b, 8}, {0x17, 8}, {0x17, 8},
+ {0x33, 8}, {0x33, 8}, {0x0f, 8}, {0x0f, 8},
+ {0x2a, 8}, {0x2a, 8}, {0x16, 8}, {0x16, 8},
+ {0x32, 8}, {0x32, 8}, {0x0e, 8}, {0x0e, 8},
+ {0x29, 8}, {0x29, 8}, {0x15, 8}, {0x15, 8},
+ {0x31, 8}, {0x31, 8}, {0x0d, 8}, {0x0d, 8},
+ {0x23, 8}, {0x23, 8}, {0x13, 8}, {0x13, 8},
+ {0x0b, 8}, {0x0b, 8}, {0x07, 8}, {0x07, 8}
+};
+
+
+static const DCtab DC_lum_5 [] = {
+ {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
+ {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
+ {0, 3}, {0, 3}, {0, 3}, {0, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3},
+ {4, 3}, {4, 3}, {4, 3}, {4, 3}, {5, 4}, {5, 4}, {6, 5}
+};
+
+static const DCtab DC_chrom_5 [] = {
+ {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2},
+ {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
+ {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
+ {3, 3}, {3, 3}, {3, 3}, {3, 3}, {4, 4}, {4, 4}, {5, 5}
+};
+
+static const DCtab DC_long [] = {
+ {6, 5}, {6, 5}, {6, 5}, {6, 5}, {6, 5}, {6, 5}, { 6, 5}, { 6, 5},
+ {6, 5}, {6, 5}, {6, 5}, {6, 5}, {6, 5}, {6, 5}, { 6, 5}, { 6, 5},
+ {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, { 7, 6}, { 7, 6},
+ {8, 7}, {8, 7}, {8, 7}, {8, 7}, {9, 8}, {9, 8}, {10, 9}, {11, 9}
+};
+
+
+static const DCTtab DCT_16 [] = {
+ {129, 0, 0}, {129, 0, 0}, {129, 0, 0}, {129, 0, 0},
+ {129, 0, 0}, {129, 0, 0}, {129, 0, 0}, {129, 0, 0},
+ {129, 0, 0}, {129, 0, 0}, {129, 0, 0}, {129, 0, 0},
+ {129, 0, 0}, {129, 0, 0}, {129, 0, 0}, {129, 0, 0},
+ { 2,18, 0}, { 2,17, 0}, { 2,16, 0}, { 2,15, 0},
+ { 7, 3, 0}, { 17, 2, 0}, { 16, 2, 0}, { 15, 2, 0},
+ { 14, 2, 0}, { 13, 2, 0}, { 12, 2, 0}, { 32, 1, 0},
+ { 31, 1, 0}, { 30, 1, 0}, { 29, 1, 0}, { 28, 1, 0}
+};
+
+static const DCTtab DCT_15 [] = {
+ { 1,40,15}, { 1,39,15}, { 1,38,15}, { 1,37,15},
+ { 1,36,15}, { 1,35,15}, { 1,34,15}, { 1,33,15},
+ { 1,32,15}, { 2,14,15}, { 2,13,15}, { 2,12,15},
+ { 2,11,15}, { 2,10,15}, { 2, 9,15}, { 2, 8,15},
+ { 1,31,14}, { 1,31,14}, { 1,30,14}, { 1,30,14},
+ { 1,29,14}, { 1,29,14}, { 1,28,14}, { 1,28,14},
+ { 1,27,14}, { 1,27,14}, { 1,26,14}, { 1,26,14},
+ { 1,25,14}, { 1,25,14}, { 1,24,14}, { 1,24,14},
+ { 1,23,14}, { 1,23,14}, { 1,22,14}, { 1,22,14},
+ { 1,21,14}, { 1,21,14}, { 1,20,14}, { 1,20,14},
+ { 1,19,14}, { 1,19,14}, { 1,18,14}, { 1,18,14},
+ { 1,17,14}, { 1,17,14}, { 1,16,14}, { 1,16,14}
+};
+
+static const DCTtab DCT_13 [] = {
+ { 11, 2,13}, { 10, 2,13}, { 6, 3,13}, { 4, 4,13},
+ { 3, 5,13}, { 2, 7,13}, { 2, 6,13}, { 1,15,13},
+ { 1,14,13}, { 1,13,13}, { 1,12,13}, { 27, 1,13},
+ { 26, 1,13}, { 25, 1,13}, { 24, 1,13}, { 23, 1,13},
+ { 1,11,12}, { 1,11,12}, { 9, 2,12}, { 9, 2,12},
+ { 5, 3,12}, { 5, 3,12}, { 1,10,12}, { 1,10,12},
+ { 3, 4,12}, { 3, 4,12}, { 8, 2,12}, { 8, 2,12},
+ { 22, 1,12}, { 22, 1,12}, { 21, 1,12}, { 21, 1,12},
+ { 1, 9,12}, { 1, 9,12}, { 20, 1,12}, { 20, 1,12},
+ { 19, 1,12}, { 19, 1,12}, { 2, 5,12}, { 2, 5,12},
+ { 4, 3,12}, { 4, 3,12}, { 1, 8,12}, { 1, 8,12},
+ { 7, 2,12}, { 7, 2,12}, { 18, 1,12}, { 18, 1,12}
+};
+
+static const DCTtab DCT_B14_10 [] = {
+ { 17, 1,10}, { 6, 2,10}, { 1, 7,10}, { 3, 3,10},
+ { 2, 4,10}, { 16, 1,10}, { 15, 1,10}, { 5, 2,10}
+};
+
+static const DCTtab DCT_B14_8 [] = {
+ { 65, 0, 6}, { 65, 0, 6}, { 65, 0, 6}, { 65, 0, 6},
+ { 3, 2, 7}, { 3, 2, 7}, { 10, 1, 7}, { 10, 1, 7},
+ { 1, 4, 7}, { 1, 4, 7}, { 9, 1, 7}, { 9, 1, 7},
+ { 8, 1, 6}, { 8, 1, 6}, { 8, 1, 6}, { 8, 1, 6},
+ { 7, 1, 6}, { 7, 1, 6}, { 7, 1, 6}, { 7, 1, 6},
+ { 2, 2, 6}, { 2, 2, 6}, { 2, 2, 6}, { 2, 2, 6},
+ { 6, 1, 6}, { 6, 1, 6}, { 6, 1, 6}, { 6, 1, 6},
+ { 14, 1, 8}, { 1, 6, 8}, { 13, 1, 8}, { 12, 1, 8},
+ { 4, 2, 8}, { 2, 3, 8}, { 1, 5, 8}, { 11, 1, 8}
+};
+
+static const DCTtab DCT_B14AC_5 [] = {
+ { 1, 3, 5}, { 5, 1, 5}, { 4, 1, 5},
+ { 1, 2, 4}, { 1, 2, 4}, { 3, 1, 4}, { 3, 1, 4},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ {129, 0, 2}, {129, 0, 2}, {129, 0, 2}, {129, 0, 2},
+ {129, 0, 2}, {129, 0, 2}, {129, 0, 2}, {129, 0, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}
+};
+
+static const DCTtab DCT_B14DC_5 [] = {
+ { 1, 3, 5}, { 5, 1, 5}, { 4, 1, 5},
+ { 1, 2, 4}, { 1, 2, 4}, { 3, 1, 4}, { 3, 1, 4},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1},
+ { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1},
+ { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1},
+ { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}
+};
+
+static const DCTtab DCT_B15_10 [] = {
+ { 6, 2, 9}, { 6, 2, 9}, { 15, 1, 9}, { 15, 1, 9},
+ { 3, 4,10}, { 17, 1,10}, { 16, 1, 9}, { 16, 1, 9}
+};
+
+static const DCTtab DCT_B15_8 [] = {
+ { 65, 0, 6}, { 65, 0, 6}, { 65, 0, 6}, { 65, 0, 6},
+ { 8, 1, 7}, { 8, 1, 7}, { 9, 1, 7}, { 9, 1, 7},
+ { 7, 1, 7}, { 7, 1, 7}, { 3, 2, 7}, { 3, 2, 7},
+ { 1, 7, 6}, { 1, 7, 6}, { 1, 7, 6}, { 1, 7, 6},
+ { 1, 6, 6}, { 1, 6, 6}, { 1, 6, 6}, { 1, 6, 6},
+ { 5, 1, 6}, { 5, 1, 6}, { 5, 1, 6}, { 5, 1, 6},
+ { 6, 1, 6}, { 6, 1, 6}, { 6, 1, 6}, { 6, 1, 6},
+ { 2, 5, 8}, { 12, 1, 8}, { 1,11, 8}, { 1,10, 8},
+ { 14, 1, 8}, { 13, 1, 8}, { 4, 2, 8}, { 2, 4, 8},
+ { 3, 1, 5}, { 3, 1, 5}, { 3, 1, 5}, { 3, 1, 5},
+ { 3, 1, 5}, { 3, 1, 5}, { 3, 1, 5}, { 3, 1, 5},
+ { 2, 2, 5}, { 2, 2, 5}, { 2, 2, 5}, { 2, 2, 5},
+ { 2, 2, 5}, { 2, 2, 5}, { 2, 2, 5}, { 2, 2, 5},
+ { 4, 1, 5}, { 4, 1, 5}, { 4, 1, 5}, { 4, 1, 5},
+ { 4, 1, 5}, { 4, 1, 5}, { 4, 1, 5}, { 4, 1, 5},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
+ {129, 0, 4}, {129, 0, 4}, {129, 0, 4}, {129, 0, 4},
+ {129, 0, 4}, {129, 0, 4}, {129, 0, 4}, {129, 0, 4},
+ {129, 0, 4}, {129, 0, 4}, {129, 0, 4}, {129, 0, 4},
+ {129, 0, 4}, {129, 0, 4}, {129, 0, 4}, {129, 0, 4},
+ { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4},
+ { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4},
+ { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4},
+ { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
+ { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
+ { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
+ { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
+ { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
+ { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
+ { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
+ { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
+ { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
+ { 1, 4, 5}, { 1, 4, 5}, { 1, 4, 5}, { 1, 4, 5},
+ { 1, 4, 5}, { 1, 4, 5}, { 1, 4, 5}, { 1, 4, 5},
+ { 1, 5, 5}, { 1, 5, 5}, { 1, 5, 5}, { 1, 5, 5},
+ { 1, 5, 5}, { 1, 5, 5}, { 1, 5, 5}, { 1, 5, 5},
+ { 10, 1, 7}, { 10, 1, 7}, { 2, 3, 7}, { 2, 3, 7},
+ { 11, 1, 7}, { 11, 1, 7}, { 1, 8, 7}, { 1, 8, 7},
+ { 1, 9, 7}, { 1, 9, 7}, { 1,12, 8}, { 1,13, 8},
+ { 3, 3, 8}, { 5, 2, 8}, { 1,14, 8}, { 1,15, 8}
+};
+
+
+static const MBAtab MBA_5 [] = {
+ {6, 5}, {5, 5}, {4, 4}, {4, 4}, {3, 4}, {3, 4},
+ {2, 3}, {2, 3}, {2, 3}, {2, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3},
+ {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1},
+ {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}
+};
+
+static const MBAtab MBA_11 [] = {
+ {32, 11}, {31, 11}, {30, 11}, {29, 11},
+ {28, 11}, {27, 11}, {26, 11}, {25, 11},
+ {24, 11}, {23, 11}, {22, 11}, {21, 11},
+ {20, 10}, {20, 10}, {19, 10}, {19, 10},
+ {18, 10}, {18, 10}, {17, 10}, {17, 10},
+ {16, 10}, {16, 10}, {15, 10}, {15, 10},
+ {14, 8}, {14, 8}, {14, 8}, {14, 8},
+ {14, 8}, {14, 8}, {14, 8}, {14, 8},
+ {13, 8}, {13, 8}, {13, 8}, {13, 8},
+ {13, 8}, {13, 8}, {13, 8}, {13, 8},
+ {12, 8}, {12, 8}, {12, 8}, {12, 8},
+ {12, 8}, {12, 8}, {12, 8}, {12, 8},
+ {11, 8}, {11, 8}, {11, 8}, {11, 8},
+ {11, 8}, {11, 8}, {11, 8}, {11, 8},
+ {10, 8}, {10, 8}, {10, 8}, {10, 8},
+ {10, 8}, {10, 8}, {10, 8}, {10, 8},
+ { 9, 8}, { 9, 8}, { 9, 8}, { 9, 8},
+ { 9, 8}, { 9, 8}, { 9, 8}, { 9, 8},
+ { 8, 7}, { 8, 7}, { 8, 7}, { 8, 7},
+ { 8, 7}, { 8, 7}, { 8, 7}, { 8, 7},
+ { 8, 7}, { 8, 7}, { 8, 7}, { 8, 7},
+ { 8, 7}, { 8, 7}, { 8, 7}, { 8, 7},
+ { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7},
+ { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7},
+ { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7},
+ { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7}
+};
--- /dev/null
+// put blk
+
+/* type definitions for variable length code table entries */
+
+typedef struct
+{
+ unsigned char code; /* right justified */
+ char len;
+} VLCtable;
+
+/* for codes longer than 8 bits (excluding leading zeroes) */
+typedef struct
+{
+ unsigned short code; /* right justified */
+ char len;
+} sVLCtable;
+
+
+/* Table B-2, B-3, B-4 variable length codes for macroblock_type
+ *
+ * indexed by [macroblock_type]
+ */
+
+const static VLCtable mbtypetab[3][32]=
+{
+ /* I */
+ {
+ {0,0}, {1,1}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
+ {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
+ {0,0}, {1,2}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
+ {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}
+ },
+ /* P */
+ {
+ {0,0}, {3,5}, {1,2}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
+ {1,3}, {0,0}, {1,1}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
+ {0,0}, {1,6}, {1,5}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
+ {0,0}, {0,0}, {2,5}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}
+ },
+ /* B */
+ {
+ {0,0}, {3,5}, {0,0}, {0,0}, {2,3}, {0,0}, {3,3}, {0,0},
+ {2,4}, {0,0}, {3,4}, {0,0}, {2,2}, {0,0}, {3,2}, {0,0},
+ {0,0}, {1,6}, {0,0}, {0,0}, {0,0}, {0,0}, {2,6}, {0,0},
+ {0,0}, {0,0}, {3,6}, {0,0}, {0,0}, {0,0}, {2,5}, {0,0}
+ }
+};
+
+
+/* Table B-5 ... B-8 variable length codes for macroblock_type in
+ * scalable sequences
+ *
+ * not implemented
+ */
+
+/* Table B-9, variable length codes for coded_block_pattern
+ *
+ * indexed by [coded_block_pattern]
+ */
+
+const static VLCtable cbptable[64]=
+{
+ {0x01,9}, {0x0b,5}, {0x09,5}, {0x0d,6},
+ {0x0d,4}, {0x17,7}, {0x13,7}, {0x1f,8},
+ {0x0c,4}, {0x16,7}, {0x12,7}, {0x1e,8},
+ {0x13,5}, {0x1b,8}, {0x17,8}, {0x13,8},
+ {0x0b,4}, {0x15,7}, {0x11,7}, {0x1d,8},
+ {0x11,5}, {0x19,8}, {0x15,8}, {0x11,8},
+ {0x0f,6}, {0x0f,8}, {0x0d,8}, {0x03,9},
+ {0x0f,5}, {0x0b,8}, {0x07,8}, {0x07,9},
+ {0x0a,4}, {0x14,7}, {0x10,7}, {0x1c,8},
+ {0x0e,6}, {0x0e,8}, {0x0c,8}, {0x02,9},
+ {0x10,5}, {0x18,8}, {0x14,8}, {0x10,8},
+ {0x0e,5}, {0x0a,8}, {0x06,8}, {0x06,9},
+ {0x12,5}, {0x1a,8}, {0x16,8}, {0x12,8},
+ {0x0d,5}, {0x09,8}, {0x05,8}, {0x05,9},
+ {0x0c,5}, {0x08,8}, {0x04,8}, {0x04,9},
+ {0x07,3}, {0x0a,5}, {0x08,5}, {0x0c,6}
+};
+
+
+
+/* Table B-14, DCT coefficients table zero
+ *
+ * indexed by [run][level-1]
+ * split into two tables (dct_code_tab1, dct_code_tab2) to reduce size
+ * 'first DCT coefficient' condition and 'End of Block' are treated elsewhere
+ * codes do not include s (sign bit)
+ */
+
+const static VLCtable dct_code_tab1[2][40]=
+{
+ /* run = 0, level = 1...40 */
+ {
+ {0x03, 2}, {0x04, 4}, {0x05, 5}, {0x06, 7},
+ {0x26, 8}, {0x21, 8}, {0x0a,10}, {0x1d,12},
+ {0x18,12}, {0x13,12}, {0x10,12}, {0x1a,13},
+ {0x19,13}, {0x18,13}, {0x17,13}, {0x1f,14},
+ {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14},
+ {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14},
+ {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14},
+ {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15},
+ {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15},
+ {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15}
+ },
+ /* run = 1, level = 1...18 */
+ {
+ {0x03, 3}, {0x06, 6}, {0x25, 8}, {0x0c,10},
+ {0x1b,12}, {0x16,13}, {0x15,13}, {0x1f,15},
+ {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},
+ {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},
+ {0x11,16}, {0x10,16}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}
+ }
+};
+
+const static VLCtable dct_code_tab2[30][5]=
+{
+ /* run = 2...31, level = 1...5 */
+ {{0x05, 4}, {0x04, 7}, {0x0b,10}, {0x14,12}, {0x14,13}},
+ {{0x07, 5}, {0x24, 8}, {0x1c,12}, {0x13,13}, {0x00, 0}},
+ {{0x06, 5}, {0x0f,10}, {0x12,12}, {0x00, 0}, {0x00, 0}},
+ {{0x07, 6}, {0x09,10}, {0x12,13}, {0x00, 0}, {0x00, 0}},
+ {{0x05, 6}, {0x1e,12}, {0x14,16}, {0x00, 0}, {0x00, 0}},
+ {{0x04, 6}, {0x15,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x07, 7}, {0x11,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x05, 7}, {0x11,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x27, 8}, {0x10,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x23, 8}, {0x1a,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x22, 8}, {0x19,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x20, 8}, {0x18,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x0e,10}, {0x17,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x0d,10}, {0x16,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x08,10}, {0x15,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1f,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1a,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x19,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x17,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x16,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1f,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1e,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1d,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1c,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1b,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1f,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1e,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1d,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1c,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1b,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}}
+};
+
+
+/* Table B-15, DCT coefficients table one
+ *
+ * indexed by [run][level-1]
+ * split into two tables (dct_code_tab1a, dct_code_tab2a) to reduce size
+ * 'End of Block' is treated elsewhere
+ * codes do not include s (sign bit)
+ */
+
+const static VLCtable dct_code_tab1a[2][40]=
+{
+ /* run = 0, level = 1...40 */
+ {
+ {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5},
+ {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7},
+ {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8},
+ {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14},
+ {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14},
+ {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14},
+ {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14},
+ {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15},
+ {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15},
+ {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15}
+ },
+ /* run = 1, level = 1...18 */
+ {
+ {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8},
+ {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15},
+ {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},
+ {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},
+ {0x11,16}, {0x10,16}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0},
+ {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}
+ }
+};
+
+const static VLCtable dct_code_tab2a[30][5]=
+{
+ /* run = 2...31, level = 1...5 */
+ {{0x05, 5}, {0x07, 7}, {0xfc, 8}, {0x0c,10}, {0x14,13}},
+ {{0x07, 5}, {0x26, 8}, {0x1c,12}, {0x13,13}, {0x00, 0}},
+ {{0x06, 6}, {0xfd, 8}, {0x12,12}, {0x00, 0}, {0x00, 0}},
+ {{0x07, 6}, {0x04, 9}, {0x12,13}, {0x00, 0}, {0x00, 0}},
+ {{0x06, 7}, {0x1e,12}, {0x14,16}, {0x00, 0}, {0x00, 0}},
+ {{0x04, 7}, {0x15,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x05, 7}, {0x11,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x78, 7}, {0x11,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x7a, 7}, {0x10,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x21, 8}, {0x1a,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x25, 8}, {0x19,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x24, 8}, {0x18,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x05, 9}, {0x17,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x07, 9}, {0x16,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x0d,10}, {0x15,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1f,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1a,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x19,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x17,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x16,12}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1f,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1e,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1d,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1c,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1b,13}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1f,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1e,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1d,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1c,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
+ {{0x1b,16}, {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}}
+};
--- /dev/null
+/*****************************************************************************
+ * transrate.c
+ *****************************************************************************
+ * Copyright (C) 2003 VideoLAN
+ * Copyright (C) 2003 Freebox S.A.
+ * Copyright (C) 2003 Antoine Missout
+ * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
+ * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ * $Id: transrate.c,v 1.1 2003/11/07 21:30:52 massiot Exp $
+ *
+ * Authors: Christophe Massiot <massiot@via.ecp.fr>
+ * Antoine Missout
+ * Michel Lespinasse <walken@zoy.org>
+ * Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#define NDEBUG 1
+#include <assert.h>
+#include <unistd.h>
+#include <math.h>
+#include <fcntl.h>
+
+#include <vlc/vlc.h>
+#include <vlc/input.h>
+#include <vlc/sout.h>
+#include <vlc/vout.h>
+#include <vlc/decoder.h>
+
+/*****************************************************************************
+ * Exported prototypes
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close ( vlc_object_t * );
+
+static sout_stream_id_t *Add ( sout_stream_t *, sout_format_t * );
+static int Del ( sout_stream_t *, sout_stream_id_t * );
+static int Send( sout_stream_t *, sout_stream_id_t *, sout_buffer_t * );
+
+static int transrate_video_new ( sout_stream_t *, sout_stream_id_t * );
+static void transrate_video_close ( sout_stream_t *, sout_stream_id_t * );
+static int transrate_video_process( sout_stream_t *, sout_stream_id_t *, sout_buffer_t *, sout_buffer_t ** );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+ set_description( _("Transrate stream") );
+ set_capability( "sout stream", 50 );
+ add_shortcut( "transrate" );
+ set_callbacks( Open, Close );
+vlc_module_end();
+
+struct sout_stream_sys_t
+{
+ sout_stream_t *p_out;
+
+ int i_vbitrate;
+
+ mtime_t i_first_frame;
+ mtime_t i_dts, i_pts;
+};
+
+/*****************************************************************************
+ * Open:
+ *****************************************************************************/
+static int Open( vlc_object_t *p_this )
+{
+ sout_stream_t *p_stream = (sout_stream_t*)p_this;
+ sout_stream_sys_t *p_sys;
+ char *val;
+
+ p_sys = malloc( sizeof( sout_stream_sys_t ) );
+ p_sys->p_out = sout_stream_new( p_stream->p_sout, p_stream->psz_next );
+
+ p_sys->i_vbitrate = 0;
+
+ if( ( val = sout_cfg_find_value( p_stream->p_cfg, "vb" ) ) )
+ {
+ p_sys->i_vbitrate = atoi( val );
+ if( p_sys->i_vbitrate < 16000 )
+ {
+ p_sys->i_vbitrate *= 1000;
+ }
+ }
+ else
+ {
+ p_sys->i_vbitrate = 3000000;
+ }
+ p_sys->i_first_frame = 0;
+
+ msg_Dbg( p_stream, "codec video %dkb/s",
+ p_sys->i_vbitrate / 1024 );
+
+ if( !p_sys->p_out )
+ {
+ msg_Err( p_stream, "cannot create chain" );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ p_stream->pf_add = Add;
+ p_stream->pf_del = Del;
+ p_stream->pf_send = Send;
+
+ p_stream->p_sys = p_sys;
+
+ p_stream->p_sout->i_padding += 200;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Close:
+ *****************************************************************************/
+static void Close( vlc_object_t * p_this )
+{
+ sout_stream_t *p_stream = (sout_stream_t *)p_this;
+ sout_stream_sys_t *p_sys = p_stream->p_sys;
+
+ sout_stream_delete( p_sys->p_out );
+ free( p_sys );
+}
+
+struct sout_stream_id_t
+{
+ void *id;
+ vlc_bool_t b_transrate;
+
+ sout_buffer_t *p_current_buffer;
+ sout_buffer_t *p_next_gop;
+ mtime_t i_next_gop_duration;
+ size_t i_next_gop_size;
+};
+
+
+static sout_stream_id_t * Add( sout_stream_t *p_stream, sout_format_t *p_fmt )
+{
+ sout_stream_sys_t *p_sys = p_stream->p_sys;
+ sout_stream_id_t *id;
+
+ id = malloc( sizeof( sout_stream_id_t ) );
+ id->id = NULL;
+
+ if( p_fmt->i_cat == VIDEO_ES
+ && p_fmt->i_fourcc == VLC_FOURCC('m', 'p', 'g', 'v') )
+ {
+ msg_Dbg( p_stream,
+ "creating video transrating for fcc=`%4.4s'",
+ (char*)&p_fmt->i_fourcc );
+
+ /* build decoder -> filter -> encoder */
+ if( transrate_video_new( p_stream, id ) )
+ {
+ msg_Err( p_stream, "cannot create video chain" );
+ free( id );
+ return NULL;
+ }
+
+ /* open output stream */
+ id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
+ id->b_transrate = VLC_TRUE;
+ }
+ else
+ {
+ msg_Dbg( p_stream, "not transrating a stream (fcc=`%4.4s')", (char*)&p_fmt->i_fourcc );
+ id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
+ id->b_transrate = VLC_FALSE;
+
+ if( id->id == NULL )
+ {
+ free( id );
+ return NULL;
+ }
+ }
+
+ return id;
+}
+
+static int Del ( sout_stream_t *p_stream, sout_stream_id_t *id )
+{
+ sout_stream_sys_t *p_sys = p_stream->p_sys;
+
+ if( id->b_transrate )
+ {
+ transrate_video_close( p_stream, id );
+ }
+
+ if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
+ free( id );
+
+ return VLC_SUCCESS;
+}
+
+static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
+ sout_buffer_t *p_buffer )
+{
+ sout_stream_sys_t *p_sys = p_stream->p_sys;
+
+ if( id->b_transrate )
+ {
+ sout_buffer_t *p_buffer_out;
+ transrate_video_process( p_stream, id, p_buffer, &p_buffer_out );
+
+ if( p_buffer_out )
+ {
+ return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer_out );
+ }
+ return VLC_SUCCESS;
+ }
+ else if( id->id != NULL )
+ {
+ return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
+ }
+ else
+ {
+ sout_BufferDelete( p_stream->p_sout, p_buffer );
+ return VLC_EGENERIC;
+ }
+}
+
+/****************************************************************************
+ * transrater, code from M2VRequantizer http://www.metakine.com/
+ ****************************************************************************/
+
+// toggles:
+// #define NDEBUG // turns off asserts
+#define REMOVE_BYTE_STUFFING // removes 0x 00 00 00 00 00 00 used in cbr streams (look for 6 0x00 and remove 1 0x00)
+ /* 4 0x00 might be legit, for exemple:
+ 00 00 01 b5 14 82 00 01 00 00 00 00 01 b8 .. ..
+ these two: -- -- are part of the seq. header ext.
+ AFAIK 5 0x00 should never happen except for byte stuffing but to be safe look for 6 */
+
+/* This is awful magic --Meuuh */
+//#define REACT_DELAY (1024.0*128.0)
+#define REACT_DELAY (1024.0*4.0)
+
+// notes:
+//
+// - intra block:
+// - the quantiser is increment by one step
+//
+// - non intra block:
+// - in P_FRAME we keep the original quantiser but drop the last coefficient
+// if there is more than one
+// - in B_FRAME we multiply the quantiser by a factor
+//
+// - I_FRAME is recoded when we're 5.0 * REACT_DELAY late
+// - P_FRAME is recoded when we're 2.5 * REACT_DELAY late
+// - B_FRAME are always recoded
+
+// if we're getting *very* late (60 * REACT_DELAY)
+//
+// - intra blocks quantiser is incremented two step
+// - drop a few coefficients but always keep the first one
+
+// useful constants
+#define I_TYPE 1
+#define P_TYPE 2
+#define B_TYPE 3
+
+// gcc
+#ifdef HAVE_BUILTIN_EXPECT
+#define likely(x) __builtin_expect ((x) != 0, 1)
+#define unlikely(x) __builtin_expect ((x) != 0, 0)
+#else
+#define likely(x) (x)
+#define unlikely(x) (x)
+#endif
+
+// user defined types
+//typedef unsigned int uint;
+typedef unsigned char uint8;
+typedef unsigned short uint16;
+typedef unsigned int uint32;
+typedef unsigned long long uint64;
+
+typedef char int8;
+typedef short int16;
+typedef int int32;
+typedef long long int64;
+
+typedef signed int sint;
+typedef signed char sint8;
+typedef signed short sint16;
+typedef signed int sint32;
+typedef signed long long sint64;
+
+#define BITS_IN_BUF (8)
+
+// global variables
+static uint8 *cbuf, *rbuf, *wbuf, *orbuf, *owbuf, *rwbuf;
+static int inbitcnt, outbitcnt;
+static uint32 inbitbuf, outbitbuf;
+static uint32 inbytecnt, outbytecnt;
+
+ static struct sout_stream_sys_t * p_sys;
+// mpeg2 state
+ // seq header
+ static uint horizontal_size_value;
+ static uint vertical_size_value;
+
+ // pic header
+ static uint picture_coding_type;
+
+ // pic code ext
+ static uint f_code[2][2];
+ static uint intra_dc_precision;
+ static uint picture_structure;
+ static uint frame_pred_frame_dct;
+ static uint concealment_motion_vectors;
+ static uint q_scale_type;
+ static uint intra_vlc_format;
+ static uint alternate_scan;
+
+ // slice or mb
+ // quantizer_scale_code
+ static uint quantizer_scale;
+ static uint new_quantizer_scale;
+ static uint last_coded_scale;
+ static int h_offset, v_offset;
+
+ // mb
+ static double quant_corr, fact_x;
+
+ // block data
+ typedef struct
+ {
+ uint8 run;
+ short level;
+ } RunLevel;
+
+ static RunLevel block[6][65]; // terminated by level = 0, so we need 64+1
+// end mpeg2 state
+
+#define LOG(msg) fprintf (stderr, msg)
+#define LOGF(format, args...) fprintf (stderr, format, args)
+
+#define WRITE \
+ do { } while(0);
+
+#define LOCK(x) \
+ do { } while(0);
+
+#define COPY(x)\
+ assert(x > 0); \
+ memcpy(wbuf, cbuf, x);\
+ cbuf += x; \
+ wbuf += x;
+
+#define SEEKR(x)\
+ cbuf += x;
+
+#define SEEKW(x)\
+ wbuf += x;
+
+static inline void putbits(uint val, int n)
+{
+ assert(n < 32);
+ assert(!(val & (0xffffffffU << n)));
+
+ while (unlikely(n >= outbitcnt))
+ {
+ wbuf[0] = (outbitbuf << outbitcnt ) | (val >> (n - outbitcnt));
+ SEEKW(1);
+ n -= outbitcnt;
+ outbitbuf = 0;
+ val &= ~(0xffffffffU << n);
+ outbitcnt = BITS_IN_BUF;
+ }
+
+ if (likely(n))
+ {
+ outbitbuf = (outbitbuf << n) | val;
+ outbitcnt -= n;
+ }
+
+ assert(outbitcnt > 0);
+ assert(outbitcnt <= BITS_IN_BUF);
+}
+
+static inline void Refill_bits(void)
+{
+ assert((rbuf - cbuf) >= 1);
+ inbitbuf |= cbuf[0] << (24 - inbitcnt);
+ inbitcnt += 8;
+ SEEKR(1)
+}
+
+static inline void Flush_Bits(uint n)
+{
+ assert(inbitcnt >= n);
+
+ inbitbuf <<= n;
+ inbitcnt -= n;
+
+ assert( (!n) || ((n>0) && !(inbitbuf & 0x1)) );
+
+ while (unlikely(inbitcnt < 24)) Refill_bits();
+}
+
+static inline uint Show_Bits(uint n)
+{
+ return ((unsigned int)inbitbuf) >> (32 - n);
+}
+
+static inline uint Get_Bits(uint n)
+{
+ uint Val = Show_Bits(n);
+ Flush_Bits(n);
+ return Val;
+}
+
+static inline uint Copy_Bits(uint n)
+{
+ uint Val = Get_Bits(n);
+ putbits(Val, n);
+ return Val;
+}
+
+static inline void flush_read_buffer()
+{
+ int i = inbitcnt & 0x7;
+ if (i)
+ {
+ //uint val = Show_Bits(i);
+ //putbits(val, i);
+ assert(((unsigned int)inbitbuf) >> (32 - i) == 0);
+ inbitbuf <<= i;
+ inbitcnt -= i;
+ }
+ SEEKR(-1 * (inbitcnt >> 3));
+ inbitcnt = 0;
+}
+
+
+static inline void flush_write_buffer()
+{
+ if (outbitcnt != 8) putbits(0, outbitcnt);
+}
+
+/////---- begin ext mpeg code
+
+const uint8 non_linear_mquant_table[32] =
+{
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 8,10,12,14,16,18,20,22,
+ 24,28,32,36,40,44,48,52,
+ 56,64,72,80,88,96,104,112
+};
+const uint8 map_non_linear_mquant[113] =
+{
+ 0,1,2,3,4,5,6,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,
+ 16,17,17,17,18,18,18,18,19,19,19,19,20,20,20,20,21,21,21,21,22,22,
+ 22,22,23,23,23,23,24,24,24,24,24,24,24,25,25,25,25,25,25,25,26,26,
+ 26,26,26,26,26,26,27,27,27,27,27,27,27,27,28,28,28,28,28,28,28,29,
+ 29,29,29,29,29,29,29,29,29,30,30,30,30,30,30,30,31,31,31,31,31
+};
+
+static int scale_quant(double quant )
+{
+ int iquant;
+ if (q_scale_type)
+ {
+ iquant = (int) floor(quant+0.5);
+
+ /* clip mquant to legal (linear) range */
+ if (iquant<1) iquant = 1;
+ if (iquant>112) iquant = 112;
+
+ iquant = non_linear_mquant_table[map_non_linear_mquant[iquant]];
+ }
+ else
+ {
+ /* clip mquant to legal (linear) range */
+ iquant = (int)floor(quant+0.5);
+ if (iquant<2) iquant = 2;
+ if (iquant>62) iquant = 62;
+ iquant = (iquant/2)*2; // Must be *even*
+ }
+ return iquant;
+}
+
+static int increment_quant(int quant)
+{
+ if (q_scale_type)
+ {
+ assert(quant >= 1 && quant <= 112);
+ quant = map_non_linear_mquant[quant] + 1;
+ if (quant_corr < -60.0f) quant++;
+ if (quant > 31) quant = 31;
+ quant = non_linear_mquant_table[quant];
+ }
+ else
+ {
+ assert(!(quant & 1));
+ quant += 2;
+ if (quant_corr < -60.0f) quant += 2;
+ if (quant > 62) quant = 62;
+ }
+ return quant;
+}
+
+static inline int intmax( register int x, register int y )
+{ return x < y ? y : x; }
+
+static inline int intmin( register int x, register int y )
+{ return x < y ? x : y; }
+
+static int getNewQuant(int curQuant)
+{
+ double calc_quant, quant_to_use;
+ int mquant = 0;
+
+ quant_corr = (((inbytecnt - (rbuf - 4 - cbuf)) / fact_x) - (outbytecnt + (wbuf - owbuf))) / REACT_DELAY;
+ calc_quant = curQuant * fact_x;
+ quant_to_use = calc_quant - quant_corr;
+
+ switch (picture_coding_type)
+ {
+ case I_TYPE:
+ case P_TYPE:
+ mquant = increment_quant(curQuant);
+ break;
+
+ case B_TYPE:
+ mquant = intmax(scale_quant(quant_to_use), increment_quant(curQuant));
+ break;
+
+ default:
+ assert(0);
+ break;
+ }
+
+ /*
+ LOGF("type: %s orig_quant: %3i calc_quant: %7.1f quant_corr: %7.1f using_quant: %3i\n",
+ (picture_coding_type == I_TYPE ? "I_TYPE" : (picture_coding_type == P_TYPE ? "P_TYPE" : "B_TYPE")),
+ (int)curQuant, (float)calc_quant, (float)quant_corr, (int)mquant);
+ */
+
+ assert(mquant >= curQuant);
+
+ return mquant;
+}
+
+static inline int isNotEmpty(RunLevel *blk)
+{
+ return (blk->level);
+}
+
+#include "putvlc.h"
+
+void putAC(int run, int signed_level, int vlcformat)
+{
+ int level, len;
+ const VLCtable *ptab = NULL;
+
+ level = (signed_level<0) ? -signed_level : signed_level; /* abs(signed_level) */
+
+ assert(!(run<0 || run>63 || level==0 || level>2047));
+
+ len = 0;
+
+ if (run<2 && level<41)
+ {
+ if (vlcformat) ptab = &dct_code_tab1a[run][level-1];
+ else ptab = &dct_code_tab1[run][level-1];
+ len = ptab->len;
+ }
+ else if (run<32 && level<6)
+ {
+ if (vlcformat) ptab = &dct_code_tab2a[run-2][level-1];
+ else ptab = &dct_code_tab2[run-2][level-1];
+ len = ptab->len;
+ }
+
+ if (len) /* a VLC code exists */
+ {
+ putbits(ptab->code, len);
+ putbits(signed_level<0, 1); /* sign */
+ }
+ else
+ {
+ putbits(1l, 6); /* Escape */
+ putbits(run, 6); /* 6 bit code for run */
+ putbits(((uint)signed_level) & 0xFFF, 12);
+ }
+}
+
+
+static inline void putACfirst(int run, int val)
+{
+ if (run==0 && (val==1 || val==-1)) putbits(2|(val<0),2);
+ else putAC(run,val,0);
+}
+
+void putnonintrablk(RunLevel *blk)
+{
+ assert(blk->level);
+
+ putACfirst(blk->run, blk->level);
+ blk++;
+
+ while(blk->level)
+ {
+ putAC(blk->run, blk->level, 0);
+ blk++;
+ }
+
+ putbits(2,2);
+}
+
+static inline void putcbp(int cbp)
+{
+ putbits(cbptable[cbp].code,cbptable[cbp].len);
+}
+
+void putmbtype(int mb_type)
+{
+ putbits(mbtypetab[picture_coding_type-1][mb_type].code,
+ mbtypetab[picture_coding_type-1][mb_type].len);
+}
+
+#include <inttypes.h>
+#include "getvlc.h"
+
+static int non_linear_quantizer_scale [] =
+{
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 8, 10, 12, 14, 16, 18, 20, 22,
+ 24, 28, 32, 36, 40, 44, 48, 52,
+ 56, 64, 72, 80, 88, 96, 104, 112
+};
+
+static inline int get_macroblock_modes ()
+{
+ int macroblock_modes;
+ const MBtab * tab;
+
+ switch (picture_coding_type)
+ {
+ case I_TYPE:
+
+ tab = MB_I + UBITS (bit_buf, 1);
+ DUMPBITS (bit_buf, bits, tab->len);
+ macroblock_modes = tab->modes;
+
+ if ((! (frame_pred_frame_dct)) && (picture_structure == FRAME_PICTURE))
+ {
+ macroblock_modes |= UBITS (bit_buf, 1) * DCT_TYPE_INTERLACED;
+ DUMPBITS (bit_buf, bits, 1);
+ }
+
+ return macroblock_modes;
+
+ case P_TYPE:
+
+ tab = MB_P + UBITS (bit_buf, 5);
+ DUMPBITS (bit_buf, bits, tab->len);
+ macroblock_modes = tab->modes;
+
+ if (picture_structure != FRAME_PICTURE)
+ {
+ if (macroblock_modes & MACROBLOCK_MOTION_FORWARD)
+ {
+ macroblock_modes |= UBITS (bit_buf, 2) * MOTION_TYPE_BASE;
+ DUMPBITS (bit_buf, bits, 2);
+ }
+ return macroblock_modes;
+ }
+ else if (frame_pred_frame_dct)
+ {
+ if (macroblock_modes & MACROBLOCK_MOTION_FORWARD)
+ macroblock_modes |= MC_FRAME;
+ return macroblock_modes;
+ }
+ else
+ {
+ if (macroblock_modes & MACROBLOCK_MOTION_FORWARD)
+ {
+ macroblock_modes |= UBITS (bit_buf, 2) * MOTION_TYPE_BASE;
+ DUMPBITS (bit_buf, bits, 2);
+ }
+ if (macroblock_modes & (MACROBLOCK_INTRA | MACROBLOCK_PATTERN))
+ {
+ macroblock_modes |= UBITS (bit_buf, 1) * DCT_TYPE_INTERLACED;
+ DUMPBITS (bit_buf, bits, 1);
+ }
+ return macroblock_modes;
+ }
+
+ case B_TYPE:
+
+ tab = MB_B + UBITS (bit_buf, 6);
+ DUMPBITS (bit_buf, bits, tab->len);
+ macroblock_modes = tab->modes;
+
+ if (picture_structure != FRAME_PICTURE)
+ {
+ if (! (macroblock_modes & MACROBLOCK_INTRA))
+ {
+ macroblock_modes |= UBITS (bit_buf, 2) * MOTION_TYPE_BASE;
+ DUMPBITS (bit_buf, bits, 2);
+ }
+ return macroblock_modes;
+ }
+ else if (frame_pred_frame_dct)
+ {
+ /* if (! (macroblock_modes & MACROBLOCK_INTRA)) */
+ macroblock_modes |= MC_FRAME;
+ return macroblock_modes;
+ }
+ else
+ {
+ if (macroblock_modes & MACROBLOCK_INTRA) goto intra;
+ macroblock_modes |= UBITS (bit_buf, 2) * MOTION_TYPE_BASE;
+ DUMPBITS (bit_buf, bits, 2);
+ if (macroblock_modes & (MACROBLOCK_INTRA | MACROBLOCK_PATTERN))
+ {
+ intra:
+ macroblock_modes |= UBITS (bit_buf, 1) * DCT_TYPE_INTERLACED;
+ DUMPBITS (bit_buf, bits, 1);
+ }
+ return macroblock_modes;
+ }
+
+ default:
+ return 0;
+ }
+
+}
+
+static inline int get_quantizer_scale ()
+{
+ int quantizer_scale_code;
+
+ quantizer_scale_code = UBITS (bit_buf, 5);
+ DUMPBITS (bit_buf, bits, 5);
+
+ if (q_scale_type) return non_linear_quantizer_scale[quantizer_scale_code];
+ else return quantizer_scale_code << 1;
+}
+
+static inline int get_motion_delta (const int f_code)
+{
+#define bit_buf (inbitbuf)
+
+ int delta;
+ int sign;
+ const MVtab * tab;
+
+ if (bit_buf & 0x80000000)
+ {
+ COPYBITS (bit_buf, bits, 1);
+ return 0;
+ }
+ else if (bit_buf >= 0x0c000000)
+ {
+
+ tab = MV_4 + UBITS (bit_buf, 4);
+ delta = (tab->delta << f_code) + 1;
+ COPYBITS (bit_buf, bits, tab->len);
+
+ sign = SBITS (bit_buf, 1);
+ COPYBITS (bit_buf, bits, 1);
+
+ if (f_code) delta += UBITS (bit_buf, f_code);
+ COPYBITS (bit_buf, bits, f_code);
+
+ return (delta ^ sign) - sign;
+ }
+ else
+ {
+
+ tab = MV_10 + UBITS (bit_buf, 10);
+ delta = (tab->delta << f_code) + 1;
+ COPYBITS (bit_buf, bits, tab->len);
+
+ sign = SBITS (bit_buf, 1);
+ COPYBITS (bit_buf, bits, 1);
+
+ if (f_code)
+ {
+ delta += UBITS (bit_buf, f_code);
+ COPYBITS (bit_buf, bits, f_code);
+ }
+
+ return (delta ^ sign) - sign;
+ }
+}
+
+
+static inline int get_dmv ()
+{
+ const DMVtab * tab;
+
+ tab = DMV_2 + UBITS (bit_buf, 2);
+ COPYBITS (bit_buf, bits, tab->len);
+ return tab->dmv;
+}
+
+static inline int get_coded_block_pattern ()
+{
+#define bit_buf (inbitbuf)
+ const CBPtab * tab;
+
+ if (bit_buf >= 0x20000000)
+ {
+ tab = CBP_7 + (UBITS (bit_buf, 7) - 16);
+ DUMPBITS (bit_buf, bits, tab->len);
+ return tab->cbp;
+ }
+ else
+ {
+ tab = CBP_9 + UBITS (bit_buf, 9);
+ DUMPBITS (bit_buf, bits, tab->len);
+ return tab->cbp;
+ }
+}
+
+static inline int get_luma_dc_dct_diff ()
+{
+#define bit_buf (inbitbuf)
+ const DCtab * tab;
+ int size;
+ int dc_diff;
+
+ if (bit_buf < 0xf8000000)
+ {
+ tab = DC_lum_5 + UBITS (bit_buf, 5);
+ size = tab->size;
+ if (size)
+ {
+ COPYBITS (bit_buf, bits, tab->len);
+ //dc_diff = UBITS (bit_buf, size) - UBITS (SBITS (~bit_buf, 1), size);
+ dc_diff = UBITS (bit_buf, size); if (!(dc_diff >> (size - 1))) dc_diff = (dc_diff + 1) - (1 << size);
+ COPYBITS (bit_buf, bits, size);
+ return dc_diff;
+ }
+ else
+ {
+ COPYBITS (bit_buf, bits, 3);
+ return 0;
+ }
+ }
+ else
+ {
+ tab = DC_long + (UBITS (bit_buf, 9) - 0x1e0);
+ size = tab->size;
+ COPYBITS (bit_buf, bits, tab->len);
+ //dc_diff = UBITS (bit_buf, size) - UBITS (SBITS (~bit_buf, 1), size);
+ dc_diff = UBITS (bit_buf, size); if (!(dc_diff >> (size - 1))) dc_diff = (dc_diff + 1) - (1 << size);
+ COPYBITS (bit_buf, bits, size);
+ return dc_diff;
+ }
+}
+
+static inline int get_chroma_dc_dct_diff ()
+{
+#define bit_buf (inbitbuf)
+
+ const DCtab * tab;
+ int size;
+ int dc_diff;
+
+ if (bit_buf < 0xf8000000)
+ {
+ tab = DC_chrom_5 + UBITS (bit_buf, 5);
+ size = tab->size;
+ if (size)
+ {
+ COPYBITS (bit_buf, bits, tab->len);
+ //dc_diff = UBITS (bit_buf, size) - UBITS (SBITS (~bit_buf, 1), size);
+ dc_diff = UBITS (bit_buf, size); if (!(dc_diff >> (size - 1))) dc_diff = (dc_diff + 1) - (1 << size);
+ COPYBITS (bit_buf, bits, size);
+ return dc_diff;
+ } else
+ {
+ COPYBITS (bit_buf, bits, 2);
+ return 0;
+ }
+ }
+ else
+ {
+ tab = DC_long + (UBITS (bit_buf, 10) - 0x3e0);
+ size = tab->size;
+ COPYBITS (bit_buf, bits, tab->len + 1);
+ //dc_diff = UBITS (bit_buf, size) - UBITS (SBITS (~bit_buf, 1), size);
+ dc_diff = UBITS (bit_buf, size); if (!(dc_diff >> (size - 1))) dc_diff = (dc_diff + 1) - (1 << size);
+ COPYBITS (bit_buf, bits, size);
+ return dc_diff;
+ }
+}
+
+static void get_intra_block_B14 ()
+{
+#define bit_buf (inbitbuf)
+ int q = quantizer_scale, nq = new_quantizer_scale, tst;
+ int i, li;
+ int val;
+ const DCTtab * tab;
+
+ /* Basic sanity check --Meuuh */
+ if ( q == 0 )
+ return;
+
+ tst = (nq / q) + ((nq % q) ? 1 : 0);
+
+ li = i = 0;
+
+ while (1)
+ {
+ if (bit_buf >= 0x28000000)
+ {
+ tab = DCT_B14AC_5 + (UBITS (bit_buf, 5) - 5);
+
+ i += tab->run;
+ if (i >= 64) break; /* end of block */
+
+ normal_code:
+ DUMPBITS (bit_buf, bits, tab->len);
+ val = tab->level;
+ if (val >= tst)
+ {
+ val = (val ^ SBITS (bit_buf, 1)) - SBITS (bit_buf, 1);
+ putAC(i - li - 1, (val * q) / nq, 0);
+ li = i;
+ }
+
+ DUMPBITS (bit_buf, bits, 1);
+
+ continue;
+ }
+ else if (bit_buf >= 0x04000000)
+ {
+ tab = DCT_B14_8 + (UBITS (bit_buf, 8) - 4);
+
+ i += tab->run;
+ if (i < 64) goto normal_code;
+
+ /* escape code */
+ i += (UBITS (bit_buf, 12) & 0x3F) - 64;
+ if (i >= 64) break; /* illegal, check needed to avoid buffer overflow */
+
+ DUMPBITS (bit_buf, bits, 12);
+ val = SBITS (bit_buf, 12);
+ if (abs(val) >= tst)
+ {
+ putAC(i - li - 1, (val * q) / nq, 0);
+ li = i;
+ }
+
+ DUMPBITS (bit_buf, bits, 12);
+
+ continue;
+ }
+ else if (bit_buf >= 0x02000000)
+ {
+ tab = DCT_B14_10 + (UBITS (bit_buf, 10) - 8);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else if (bit_buf >= 0x00800000)
+ {
+ tab = DCT_13 + (UBITS (bit_buf, 13) - 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else if (bit_buf >= 0x00200000)
+ {
+ tab = DCT_15 + (UBITS (bit_buf, 15) - 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else
+ {
+ tab = DCT_16 + UBITS (bit_buf, 16);
+ DUMPBITS (bit_buf, bits, 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ break; /* illegal, check needed to avoid buffer overflow */
+ }
+
+ COPYBITS (bit_buf, bits, 2); /* end of block code */
+}
+
+static void get_intra_block_B15 ()
+{
+#define bit_buf (inbitbuf)
+ int q = quantizer_scale, nq = new_quantizer_scale, tst;
+ int i, li;
+ int val;
+ const DCTtab * tab;
+
+ /* Basic sanity check --Meuuh */
+ if ( q == 0 )
+ return;
+
+ tst = (nq / q) + ((nq % q) ? 1 : 0);
+
+ li = i = 0;
+
+ while (1)
+ {
+ if (bit_buf >= 0x04000000)
+ {
+ tab = DCT_B15_8 + (UBITS (bit_buf, 8) - 4);
+
+ i += tab->run;
+ if (i < 64)
+ {
+ normal_code:
+ DUMPBITS (bit_buf, bits, tab->len);
+
+ val = tab->level;
+ if (val >= tst)
+ {
+ val = (val ^ SBITS (bit_buf, 1)) - SBITS (bit_buf, 1);
+ putAC(i - li - 1, (val * q) / nq, 1);
+ li = i;
+ }
+
+ DUMPBITS (bit_buf, bits, 1);
+
+ continue;
+ }
+ else
+ {
+ i += (UBITS (bit_buf, 12) & 0x3F) - 64;
+
+ if (i >= 64) break; /* illegal, check against buffer overflow */
+
+ DUMPBITS (bit_buf, bits, 12);
+ val = SBITS (bit_buf, 12);
+ if (abs(val) >= tst)
+ {
+ putAC(i - li - 1, (val * q) / nq, 1);
+ li = i;
+ }
+
+ DUMPBITS (bit_buf, bits, 12);
+
+ continue;
+ }
+ }
+ else if (bit_buf >= 0x02000000)
+ {
+ tab = DCT_B15_10 + (UBITS (bit_buf, 10) - 8);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else if (bit_buf >= 0x00800000)
+ {
+ tab = DCT_13 + (UBITS (bit_buf, 13) - 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else if (bit_buf >= 0x00200000)
+ {
+ tab = DCT_15 + (UBITS (bit_buf, 15) - 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else
+ {
+ tab = DCT_16 + UBITS (bit_buf, 16);
+ DUMPBITS (bit_buf, bits, 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ break; /* illegal, check needed to avoid buffer overflow */
+ }
+
+ COPYBITS (bit_buf, bits, 4); /* end of block code */
+}
+
+
+static int get_non_intra_block_drop (RunLevel *blk)
+{
+#define bit_buf (inbitbuf)
+
+ int i, li;
+ int val;
+ const DCTtab * tab;
+ RunLevel *sblk = blk + 1;
+
+ li = i = -1;
+
+ if (bit_buf >= 0x28000000)
+ {
+ tab = DCT_B14DC_5 + (UBITS (bit_buf, 5) - 5);
+ goto entry_1;
+ }
+ else goto entry_2;
+
+ while (1)
+ {
+ if (bit_buf >= 0x28000000)
+ {
+ tab = DCT_B14AC_5 + (UBITS (bit_buf, 5) - 5);
+
+ entry_1:
+ i += tab->run;
+ if (i >= 64) break; /* end of block */
+
+ normal_code:
+
+ DUMPBITS (bit_buf, bits, tab->len);
+ val = tab->level;
+ val = (val ^ SBITS (bit_buf, 1)) - SBITS (bit_buf, 1); /* if (bitstream_get (1)) val = -val; */
+
+ blk->level = val;
+ blk->run = i - li - 1;
+ li = i;
+ blk++;
+
+ DUMPBITS (bit_buf, bits, 1);
+
+ continue;
+ }
+
+ entry_2:
+
+ if (bit_buf >= 0x04000000)
+ {
+ tab = DCT_B14_8 + (UBITS (bit_buf, 8) - 4);
+
+ i += tab->run;
+ if (i < 64) goto normal_code;
+
+ /* escape code */
+
+ i += (UBITS (bit_buf, 12) & 0x3F) - 64;
+
+ if (i >= 64) break; /* illegal, check needed to avoid buffer overflow */
+
+ DUMPBITS (bit_buf, bits, 12);
+ val = SBITS (bit_buf, 12);
+
+ blk->level = val;
+ blk->run = i - li - 1;
+ li = i;
+ blk++;
+
+ DUMPBITS (bit_buf, bits, 12);
+
+ continue;
+ }
+ else if (bit_buf >= 0x02000000)
+ {
+ tab = DCT_B14_10 + (UBITS (bit_buf, 10) - 8);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else if (bit_buf >= 0x00800000)
+ {
+ tab = DCT_13 + (UBITS (bit_buf, 13) - 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else if (bit_buf >= 0x00200000)
+ {
+ tab = DCT_15 + (UBITS (bit_buf, 15) - 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else
+ {
+ tab = DCT_16 + UBITS (bit_buf, 16);
+ DUMPBITS (bit_buf, bits, 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ break; /* illegal, check needed to avoid buffer overflow */
+ }
+ DUMPBITS (bit_buf, bits, 2); /* dump end of block code */
+
+ // remove last coeff
+ if (blk != sblk)
+ {
+ blk--;
+ // remove more coeffs if very late
+ if ((quant_corr < -60.0f) && (blk != sblk))
+ {
+ blk--;
+ if ((quant_corr < -80.0f) && (blk != sblk))
+ {
+ blk--;
+ if ((quant_corr < -100.0f) && (blk != sblk))
+ {
+ blk--;
+ if ((quant_corr < -120.0f) && (blk != sblk))
+ blk--;
+ }
+ }
+ }
+ }
+
+ blk->level = 0;
+
+ return i;
+}
+
+static int get_non_intra_block_rq (RunLevel *blk)
+{
+#define bit_buf (inbitbuf)
+ int q = quantizer_scale, nq = new_quantizer_scale, tst;
+ int i, li;
+ int val;
+ const DCTtab * tab;
+
+ /* Basic sanity check --Meuuh */
+ if ( q == 0 )
+ return 0;
+
+ tst = (nq / q) + ((nq % q) ? 1 : 0);
+
+ li = i = -1;
+
+ if (bit_buf >= 0x28000000)
+ {
+ tab = DCT_B14DC_5 + (UBITS (bit_buf, 5) - 5);
+ goto entry_1;
+ }
+ else goto entry_2;
+
+ while (1)
+ {
+ if (bit_buf >= 0x28000000)
+ {
+ tab = DCT_B14AC_5 + (UBITS (bit_buf, 5) - 5);
+
+ entry_1:
+ i += tab->run;
+ if (i >= 64)
+ break; /* end of block */
+
+ normal_code:
+
+ DUMPBITS (bit_buf, bits, tab->len);
+ val = tab->level;
+ if (val >= tst)
+ {
+ val = (val ^ SBITS (bit_buf, 1)) - SBITS (bit_buf, 1);
+ blk->level = (val * q) / nq;
+ blk->run = i - li - 1;
+ li = i;
+ blk++;
+ }
+
+ //if ( ((val) && (tab->level < tst)) || ((!val) && (tab->level >= tst)) )
+ // LOGF("level: %i val: %i tst : %i q: %i nq : %i\n", tab->level, val, tst, q, nq);
+
+ DUMPBITS (bit_buf, bits, 1);
+
+ continue;
+ }
+
+ entry_2:
+ if (bit_buf >= 0x04000000)
+ {
+ tab = DCT_B14_8 + (UBITS (bit_buf, 8) - 4);
+
+ i += tab->run;
+ if (i < 64) goto normal_code;
+
+ /* escape code */
+
+ i += (UBITS (bit_buf, 12) & 0x3F) - 64;
+
+ if (i >= 64) break; /* illegal, check needed to avoid buffer overflow */
+
+ DUMPBITS (bit_buf, bits, 12);
+ val = SBITS (bit_buf, 12);
+ if (abs(val) >= tst)
+ {
+ blk->level = (val * q) / nq;
+ blk->run = i - li - 1;
+ li = i;
+ blk++;
+ }
+
+ DUMPBITS (bit_buf, bits, 12);
+
+ continue;
+ }
+ else if (bit_buf >= 0x02000000)
+ {
+ tab = DCT_B14_10 + (UBITS (bit_buf, 10) - 8);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else if (bit_buf >= 0x00800000)
+ {
+ tab = DCT_13 + (UBITS (bit_buf, 13) - 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else if (bit_buf >= 0x00200000)
+ {
+ tab = DCT_15 + (UBITS (bit_buf, 15) - 16);
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ else
+ {
+ tab = DCT_16 + UBITS (bit_buf, 16);
+ DUMPBITS (bit_buf, bits, 16);
+
+ i += tab->run;
+ if (i < 64) goto normal_code;
+ }
+ break; /* illegal, check needed to avoid buffer overflow */
+ }
+ DUMPBITS (bit_buf, bits, 2); /* dump end of block code */
+
+ blk->level = 0;
+
+ return i;
+}
+
+static inline void slice_intra_DCT (const int cc)
+{
+ if (cc == 0) get_luma_dc_dct_diff ();
+ else get_chroma_dc_dct_diff ();
+
+ if (intra_vlc_format) get_intra_block_B15 ();
+ else get_intra_block_B14 ();
+}
+
+static inline void slice_non_intra_DCT (int cur_block)
+{
+ if (picture_coding_type == P_TYPE) get_non_intra_block_drop(block[cur_block]);
+ else get_non_intra_block_rq(block[cur_block]);
+}
+
+static void motion_fr_frame ( uint f_code[2] )
+{
+ get_motion_delta (f_code[0]);
+ get_motion_delta (f_code[1]);
+}
+
+static void motion_fr_field ( uint f_code[2] )
+{
+ COPYBITS (bit_buf, bits, 1);
+
+ get_motion_delta (f_code[0]);
+ get_motion_delta (f_code[1]);
+
+ COPYBITS (bit_buf, bits, 1);
+
+ get_motion_delta (f_code[0]);
+ get_motion_delta (f_code[1]);
+}
+
+static void motion_fr_dmv ( uint f_code[2] )
+{
+ get_motion_delta (f_code[0]);
+ get_dmv ();
+
+ get_motion_delta (f_code[1]);
+ get_dmv ();
+}
+
+/* like motion_frame, but parsing without actual motion compensation */
+static void motion_fr_conceal ( )
+{
+ get_motion_delta (f_code[0][0]);
+ get_motion_delta (f_code[0][1]);
+
+ COPYBITS (bit_buf, bits, 1); /* remove marker_bit */
+}
+
+static void motion_fi_field ( uint f_code[2] )
+{
+ COPYBITS (bit_buf, bits, 1);
+
+ get_motion_delta (f_code[0]);
+ get_motion_delta (f_code[1]);
+}
+
+static void motion_fi_16x8 ( uint f_code[2] )
+{
+ COPYBITS (bit_buf, bits, 1);
+
+ get_motion_delta (f_code[0]);
+ get_motion_delta (f_code[1]);
+
+ COPYBITS (bit_buf, bits, 1);
+
+ get_motion_delta (f_code[0]);
+ get_motion_delta (f_code[1]);
+}
+
+static void motion_fi_dmv ( uint f_code[2] )
+{
+ get_motion_delta (f_code[0]);
+ get_dmv ();
+
+ get_motion_delta (f_code[1]);
+ get_dmv ();
+}
+
+static void motion_fi_conceal ()
+{
+ COPYBITS (bit_buf, bits, 1); /* remove field_select */
+
+ get_motion_delta (f_code[0][0]);
+ get_motion_delta (f_code[0][1]);
+
+ COPYBITS (bit_buf, bits, 1); /* remove marker_bit */
+}
+
+#define MOTION_CALL(routine,direction) \
+do { \
+ if ((direction) & MACROBLOCK_MOTION_FORWARD) \
+ routine (f_code[0]); \
+ if ((direction) & MACROBLOCK_MOTION_BACKWARD) \
+ routine (f_code[1]); \
+} while (0)
+
+#define NEXT_MACROBLOCK \
+do { \
+ h_offset += 16; \
+ if (h_offset == horizontal_size_value) \
+ { \
+ v_offset += 16; \
+ if (v_offset > (vertical_size_value - 16)) return; \
+ h_offset = 0; \
+ } \
+} while (0)
+
+void putmbdata(int macroblock_modes)
+{
+ putmbtype(macroblock_modes & 0x1F);
+
+ switch (picture_coding_type)
+ {
+ case I_TYPE:
+ if ((! (frame_pred_frame_dct)) && (picture_structure == FRAME_PICTURE))
+ putbits(macroblock_modes & DCT_TYPE_INTERLACED ? 1 : 0, 1);
+ break;
+
+ case P_TYPE:
+ if (picture_structure != FRAME_PICTURE)
+ {
+ if (macroblock_modes & MACROBLOCK_MOTION_FORWARD)
+ putbits((macroblock_modes & MOTION_TYPE_MASK) / MOTION_TYPE_BASE, 2);
+ break;
+ }
+ else if (frame_pred_frame_dct) break;
+ else
+ {
+ if (macroblock_modes & MACROBLOCK_MOTION_FORWARD)
+ putbits((macroblock_modes & MOTION_TYPE_MASK) / MOTION_TYPE_BASE, 2);
+ if (macroblock_modes & (MACROBLOCK_INTRA | MACROBLOCK_PATTERN))
+ putbits(macroblock_modes & DCT_TYPE_INTERLACED ? 1 : 0, 1);
+ break;
+ }
+
+ case B_TYPE:
+ if (picture_structure != FRAME_PICTURE)
+ {
+ if (! (macroblock_modes & MACROBLOCK_INTRA))
+ putbits((macroblock_modes & MOTION_TYPE_MASK) / MOTION_TYPE_BASE, 2);
+ break;
+ }
+ else if (frame_pred_frame_dct) break;
+ else
+ {
+ if (macroblock_modes & MACROBLOCK_INTRA) goto intra;
+ putbits((macroblock_modes & MOTION_TYPE_MASK) / MOTION_TYPE_BASE, 2);
+ if (macroblock_modes & (MACROBLOCK_INTRA | MACROBLOCK_PATTERN))
+ {
+ intra:
+ putbits(macroblock_modes & DCT_TYPE_INTERLACED ? 1 : 0, 1);
+ }
+ break;
+ }
+ }
+
+}
+
+static inline void put_quantiser(int quantiser)
+{
+ putbits(q_scale_type ? map_non_linear_mquant[quantiser] : quantiser >> 1, 5);
+ last_coded_scale = quantiser;
+}
+
+static int slice_init (int code)
+{
+#define bit_buf (inbitbuf)
+
+ int offset;
+ const MBAtab * mba;
+
+ v_offset = (code - 1) * 16;
+
+ quantizer_scale = get_quantizer_scale ();
+ if (picture_coding_type == P_TYPE) new_quantizer_scale = quantizer_scale;
+ else new_quantizer_scale = getNewQuant(quantizer_scale);
+ put_quantiser(new_quantizer_scale);
+
+ /*LOGF("************************\nstart of slice %i in %s picture. ori quant: %i new quant: %i\n", code,
+ (picture_coding_type == I_TYPE ? "I_TYPE" : (picture_coding_type == P_TYPE ? "P_TYPE" : "B_TYPE")),
+ quantizer_scale, new_quantizer_scale);*/
+
+ /* ignore intra_slice and all the extra data */
+ while (bit_buf & 0x80000000)
+ {
+ DUMPBITS (bit_buf, bits, 9);
+ }
+
+ /* decode initial macroblock address increment */
+ offset = 0;
+ while (1)
+ {
+ if (bit_buf >= 0x08000000)
+ {
+ mba = MBA_5 + (UBITS (bit_buf, 6) - 2);
+ break;
+ }
+ else if (bit_buf >= 0x01800000)
+ {
+ mba = MBA_11 + (UBITS (bit_buf, 12) - 24);
+ break;
+ }
+ else switch (UBITS (bit_buf, 12))
+ {
+ case 8: /* macroblock_escape */
+ offset += 33;
+ COPYBITS (bit_buf, bits, 11);
+ continue;
+ default: /* error */
+ return 1;
+ }
+ }
+
+ COPYBITS (bit_buf, bits, mba->len + 1);
+ h_offset = (offset + mba->mba) << 4;
+
+ while (h_offset - (int)horizontal_size_value >= 0)
+ {
+ h_offset -= horizontal_size_value;
+ v_offset += 16;
+ }
+
+ if (v_offset > (vertical_size_value - 16)) return 1;
+
+ return 0;
+
+}
+
+void mpeg2_slice ( const int code )
+{
+#define bit_buf (inbitbuf)
+
+ if (slice_init (code)) return;
+
+ while (1)
+ {
+ int macroblock_modes;
+ int mba_inc;
+ const MBAtab * mba;
+
+ macroblock_modes = get_macroblock_modes ();
+ if (macroblock_modes & MACROBLOCK_QUANT) quantizer_scale = get_quantizer_scale ();
+
+ //LOGF("blk %i : ", h_offset >> 4);
+
+ if (macroblock_modes & MACROBLOCK_INTRA)
+ {
+ //LOG("intra "); if (macroblock_modes & MACROBLOCK_QUANT) LOGF("got new quant: %i ", quantizer_scale);
+
+ new_quantizer_scale = increment_quant(quantizer_scale);
+ if (last_coded_scale == new_quantizer_scale) macroblock_modes &= 0xFFFFFFEF; // remove MACROBLOCK_QUANT
+ else macroblock_modes |= MACROBLOCK_QUANT; //add MACROBLOCK_QUANT
+ putmbdata(macroblock_modes);
+ if (macroblock_modes & MACROBLOCK_QUANT) put_quantiser(new_quantizer_scale);
+
+ //if (macroblock_modes & MACROBLOCK_QUANT) LOGF("put new quant: %i ", new_quantizer_scale);
+
+ if (concealment_motion_vectors)
+ {
+ if (picture_structure == FRAME_PICTURE) motion_fr_conceal ();
+ else motion_fi_conceal ();
+ }
+
+ slice_intra_DCT ( 0);
+ slice_intra_DCT ( 0);
+ slice_intra_DCT ( 0);
+ slice_intra_DCT ( 0);
+ slice_intra_DCT ( 1);
+ slice_intra_DCT ( 2);
+ }
+ else
+ {
+ int new_coded_block_pattern = 0;
+
+ // begin saving data
+ int batb;
+ uint8 n_owbuf[32], *n_wbuf,
+ *o_owbuf = owbuf, *o_wbuf = wbuf;
+ uint32 n_outbitcnt, n_outbitbuf,
+ o_outbitcnt = outbitcnt, o_outbitbuf = outbitbuf;
+
+ outbitbuf = 0; outbitcnt = BITS_IN_BUF;
+ owbuf = wbuf = n_owbuf;
+
+ if (picture_structure == FRAME_PICTURE)
+ switch (macroblock_modes & MOTION_TYPE_MASK)
+ {
+ case MC_FRAME: MOTION_CALL (motion_fr_frame, macroblock_modes); break;
+ case MC_FIELD: MOTION_CALL (motion_fr_field, macroblock_modes); break;
+ case MC_DMV: MOTION_CALL (motion_fr_dmv, MACROBLOCK_MOTION_FORWARD); break;
+ }
+ else
+ switch (macroblock_modes & MOTION_TYPE_MASK)
+ {
+ case MC_FIELD: MOTION_CALL (motion_fi_field, macroblock_modes); break;
+ case MC_16X8: MOTION_CALL (motion_fi_16x8, macroblock_modes); break;
+ case MC_DMV: MOTION_CALL (motion_fi_dmv, MACROBLOCK_MOTION_FORWARD); break;
+ }
+
+ assert(wbuf - owbuf < 32);
+
+ n_wbuf = wbuf;
+ n_outbitcnt = outbitcnt;
+ n_outbitbuf = outbitbuf;
+ assert(owbuf == n_owbuf);
+
+ outbitcnt = o_outbitcnt;
+ outbitbuf = o_outbitbuf;
+ owbuf = o_owbuf;
+ wbuf = o_wbuf;
+ // end saving data
+
+ if (picture_coding_type == P_TYPE) new_quantizer_scale = quantizer_scale;
+ else new_quantizer_scale = getNewQuant(quantizer_scale);
+
+ //LOG("non intra "); if (macroblock_modes & MACROBLOCK_QUANT) LOGF("got new quant: %i ", quantizer_scale);
+
+ if (macroblock_modes & MACROBLOCK_PATTERN)
+ {
+ int coded_block_pattern = get_coded_block_pattern ();
+
+ if (coded_block_pattern & 0x20) slice_non_intra_DCT(0);
+ if (coded_block_pattern & 0x10) slice_non_intra_DCT(1);
+ if (coded_block_pattern & 0x08) slice_non_intra_DCT(2);
+ if (coded_block_pattern & 0x04) slice_non_intra_DCT(3);
+ if (coded_block_pattern & 0x02) slice_non_intra_DCT(4);
+ if (coded_block_pattern & 0x01) slice_non_intra_DCT(5);
+
+ if (picture_coding_type == B_TYPE)
+ {
+ if (coded_block_pattern & 0x20) if (isNotEmpty(block[0])) new_coded_block_pattern |= 0x20;
+ if (coded_block_pattern & 0x10) if (isNotEmpty(block[1])) new_coded_block_pattern |= 0x10;
+ if (coded_block_pattern & 0x08) if (isNotEmpty(block[2])) new_coded_block_pattern |= 0x08;
+ if (coded_block_pattern & 0x04) if (isNotEmpty(block[3])) new_coded_block_pattern |= 0x04;
+ if (coded_block_pattern & 0x02) if (isNotEmpty(block[4])) new_coded_block_pattern |= 0x02;
+ if (coded_block_pattern & 0x01) if (isNotEmpty(block[5])) new_coded_block_pattern |= 0x01;
+ if (!new_coded_block_pattern) macroblock_modes &= 0xFFFFFFED; // remove MACROBLOCK_PATTERN and MACROBLOCK_QUANT flag
+ }
+ else new_coded_block_pattern = coded_block_pattern;
+ }
+
+ if (last_coded_scale == new_quantizer_scale) macroblock_modes &= 0xFFFFFFEF; // remove MACROBLOCK_QUANT
+ else if (macroblock_modes & MACROBLOCK_PATTERN) macroblock_modes |= MACROBLOCK_QUANT; //add MACROBLOCK_QUANT
+ assert( (macroblock_modes & MACROBLOCK_PATTERN) || !(macroblock_modes & MACROBLOCK_QUANT) );
+
+ putmbdata(macroblock_modes);
+ if (macroblock_modes & MACROBLOCK_QUANT) put_quantiser(new_quantizer_scale);
+
+ //if (macroblock_modes & MACROBLOCK_PATTERN) LOG("coded ");
+ //if (macroblock_modes & MACROBLOCK_QUANT) LOGF("put new quant: %i ", new_quantizer_scale);
+
+ // put saved motion data...
+ for (batb = 0; batb < (n_wbuf - n_owbuf); batb++) putbits(n_owbuf[batb], 8);
+ putbits(n_outbitbuf, BITS_IN_BUF - n_outbitcnt);
+ // end saved motion data...
+
+ if (macroblock_modes & MACROBLOCK_PATTERN)
+ {
+ putcbp(new_coded_block_pattern);
+
+ if (new_coded_block_pattern & 0x20) putnonintrablk(block[0]);
+ if (new_coded_block_pattern & 0x10) putnonintrablk(block[1]);
+ if (new_coded_block_pattern & 0x08) putnonintrablk(block[2]);
+ if (new_coded_block_pattern & 0x04) putnonintrablk(block[3]);
+ if (new_coded_block_pattern & 0x02) putnonintrablk(block[4]);
+ if (new_coded_block_pattern & 0x01) putnonintrablk(block[5]);
+ }
+ }
+
+ //LOGF("\n\to: %i c: %i n: %i\n", quantizer_scale, last_coded_scale, new_quantizer_scale);
+
+ NEXT_MACROBLOCK;
+
+ mba_inc = 0;
+ while (1)
+ {
+ if (bit_buf >= 0x10000000)
+ {
+ mba = MBA_5 + (UBITS (bit_buf, 5) - 2);
+ break;
+ }
+ else if (bit_buf >= 0x03000000)
+ {
+ mba = MBA_11 + (UBITS (bit_buf, 11) - 24);
+ break;
+ }
+ else
+ switch (UBITS (bit_buf, 11))
+ {
+ case 8: /* macroblock_escape */
+ mba_inc += 33;
+ COPYBITS (bit_buf, bits, 11);
+ continue;
+ default: /* end of slice, or error */
+ return;
+ }
+ }
+ COPYBITS (bit_buf, bits, mba->len);
+ mba_inc += mba->mba;
+
+ if (mba_inc) do { NEXT_MACROBLOCK; } while (--mba_inc);
+ }
+
+}
+
+/////---- end ext mpeg code
+
+static int do_next_start_code(void)
+{
+ uint8 ID;
+
+ // get start code
+ LOCK(1)
+ ID = cbuf[0];
+ COPY(1)
+
+ if (ID == 0x00) // pic header
+ {
+ LOCK(4)
+ picture_coding_type = (cbuf[1] >> 3) & 0x7;
+ cbuf[1] |= 0x7; cbuf[2] = 0xFF; cbuf[3] |= 0xF8; // vbv_delay is now 0xFFFF
+ COPY(4)
+ }
+ else if (ID == 0xB3) // seq header
+ {
+ LOCK(8)
+ horizontal_size_value = (cbuf[0] << 4) | (cbuf[1] >> 4);
+ vertical_size_value = ((cbuf[1] & 0xF) << 8) | cbuf[2];
+ if (!horizontal_size_value || !vertical_size_value)
+ return -1;
+ COPY(8)
+ }
+ else if (ID == 0xB5) // extension
+ {
+ LOCK(1)
+ if ((cbuf[0] >> 4) == 0x8) // pic coding ext
+ {
+ LOCK(5)
+
+ f_code[0][0] = (cbuf[0] & 0xF) - 1;
+ f_code[0][1] = (cbuf[1] >> 4) - 1;
+ f_code[1][0] = (cbuf[1] & 0xF) - 1;
+ f_code[1][1] = (cbuf[2] >> 4) - 1;
+
+ intra_dc_precision = (cbuf[2] >> 2) & 0x3;
+ picture_structure = cbuf[2] & 0x3;
+ frame_pred_frame_dct = (cbuf[3] >> 6) & 0x1;
+ concealment_motion_vectors = (cbuf[3] >> 5) & 0x1;
+ q_scale_type = (cbuf[3] >> 4) & 0x1;
+ intra_vlc_format = (cbuf[3] >> 3) & 0x1;
+ alternate_scan = (cbuf[3] >> 2) & 0x1;
+ COPY(5)
+ }
+ else
+ {
+ COPY(1)
+ }
+ }
+ else if (ID == 0xB8) // gop header
+ {
+ LOCK(4)
+ COPY(4)
+ }
+ else if ((ID >= 0x01) && (ID <= 0xAF)) // slice
+ {
+ uint8 *outTemp = wbuf, *inTemp = cbuf;
+
+ if ( ((picture_coding_type == B_TYPE) && (quant_corr < 2.5f)) // don't recompress if we're in advance!
+ || ((picture_coding_type == P_TYPE) && (quant_corr < -2.5f))
+ || ((picture_coding_type == I_TYPE) && (quant_corr < -5.0f))
+ )
+ {
+ uint8 *nsc = cbuf;
+ int fsc = 0, toLock;
+
+ if (!horizontal_size_value || !vertical_size_value)
+ return -1;
+
+ // lock all the slice
+ while (!fsc)
+ {
+ toLock = nsc - cbuf + 3;
+ LOCK(toLock)
+
+ if ( (nsc[0] == 0) && (nsc[1] == 0) && (nsc[2] == 1) ) fsc = 1; // start code !
+ else nsc++; // continue search
+ }
+
+ // init bit buffer
+ inbitbuf = 0; inbitcnt = 0;
+ outbitbuf = 0; outbitcnt = BITS_IN_BUF;
+
+ // get 32 bits
+ Refill_bits();
+ Refill_bits();
+ Refill_bits();
+ Refill_bits();
+
+ // begin bit level recoding
+ mpeg2_slice(ID);
+ flush_read_buffer();
+ flush_write_buffer();
+ // end bit level recoding
+
+ /* Basic sanity checks --Meuuh */
+ if (cbuf > rbuf || wbuf > rwbuf)
+ return -1;
+
+ /*LOGF("type: %s code: %02i in : %6i out : %6i diff : %6i fact: %2.2f\n",
+ (picture_coding_type == I_TYPE ? "I_TYPE" : (picture_coding_type == P_TYPE ? "P_TYPE" : "B_TYPE")),
+ ID, cbuf - inTemp, wbuf - outTemp, (wbuf - outTemp) - (cbuf - inTemp), (float)(cbuf - inTemp) / (float)(wbuf - outTemp));*/
+
+ if (wbuf - outTemp > cbuf - inTemp) // yes that might happen, rarely
+ {
+ /*LOGF("*** slice bigger than before !! (type: %s code: %i in : %i out : %i diff : %i)\n",
+ (picture_coding_type == I_TYPE ? "I_TYPE" : (picture_coding_type == P_TYPE ? "P_TYPE" : "B_TYPE")),
+ ID, cbuf - inTemp, wbuf - outTemp, (wbuf - outTemp) - (cbuf - inTemp));*/
+
+ // in this case, we'll just use the original slice !
+ memcpy(outTemp, inTemp, cbuf - inTemp);
+ wbuf = outTemp + (cbuf - inTemp);
+
+ // adjust outbytecnt
+ outbytecnt -= (wbuf - outTemp) - (cbuf - inTemp);
+ }
+ }
+ }
+ return 0;
+}
+
+static void process_frame( sout_stream_t *p_stream,
+ sout_stream_id_t *id, sout_buffer_t *in, sout_buffer_t **out )
+{
+ uint8_t found;
+ sout_buffer_t *p_out;
+
+ /* The output buffer can't be bigger than the input buffer. */
+ p_out = sout_BufferNew( p_stream->p_sout, in->i_size );
+
+ p_out->i_length = in->i_length;
+ p_out->i_dts = in->i_dts;
+ p_out->i_pts = in->i_pts;
+
+ sout_BufferChain( out, p_out );
+
+ rwbuf = owbuf = wbuf = p_out->p_buffer;
+ cbuf = rbuf = in->p_buffer;
+ rbuf += in->i_size + 4;
+ rwbuf += in->i_size;
+ *(in->p_buffer + in->i_size) = 0;
+ *(in->p_buffer + in->i_size + 1) = 0;
+ *(in->p_buffer + in->i_size + 2) = 1;
+ *(in->p_buffer + in->i_size + 3) = 0;
+ inbytecnt += in->i_size;
+
+ for ( ; ; )
+ {
+ // get next start code prefix
+ found = 0;
+ while (!found)
+ {
+#ifndef REMOVE_BYTE_STUFFING
+ LOCK(3)
+#else
+ LOCK(6)
+ if ( (cbuf[0] == 0) && (cbuf[1] == 0) && (cbuf[2] == 0) && (cbuf[3] == 0) && (cbuf[4] == 0) && (cbuf[5] == 0) ) { SEEKR(1) }
+ else
+#endif
+ if ( (cbuf[0] == 0) && (cbuf[1] == 0) && (cbuf[2] == 1) ) found = 1; // start code !
+ else { COPY(1) } // continue search
+
+ if (cbuf >= in->p_buffer + in->i_size)
+ break;
+ }
+ if (cbuf >= in->p_buffer + in->i_size)
+ break;
+ COPY(3)
+
+ if (do_next_start_code() == -1)
+ break;
+
+ quant_corr = (((inbytecnt - (rbuf - 4 - cbuf)) / fact_x) - (outbytecnt + (wbuf - owbuf))) / REACT_DELAY;
+ }
+
+ outbytecnt += wbuf - owbuf;
+ p_out->i_size = wbuf - owbuf;
+}
+
+static int transrate_video_process( sout_stream_t *p_stream,
+ sout_stream_id_t *id, sout_buffer_t *in, sout_buffer_t **out )
+{
+ *out = NULL;
+
+ if ( in->i_flags & SOUT_BUFFER_FLAGS_GOP )
+ {
+ while ( id->p_current_buffer != NULL )
+ {
+ sout_buffer_t * p_next = id->p_current_buffer->p_next;
+ if ( fact_x == 1.0 )
+ {
+ outbytecnt += id->p_current_buffer->i_size;
+ id->p_current_buffer->p_next = NULL;
+ sout_BufferChain( out, id->p_current_buffer );
+ }
+ else
+ {
+ process_frame( p_stream, id, id->p_current_buffer, out );
+ sout_BufferDelete(p_stream->p_sout, id->p_current_buffer);
+ }
+ id->p_current_buffer = p_next;
+ }
+
+ if ( id->i_next_gop_duration )
+ {
+ mtime_t i_bitrate = (mtime_t)id->i_next_gop_size * 8000
+ / (id->i_next_gop_duration / 1000);
+ static mtime_t i_old_bitrate = 0;
+ static mtime_t i_old_duration = 0;
+ if (i_old_bitrate)
+ {
+ msg_Dbg(p_stream, "bitrate = %lld -> %lld", i_old_bitrate,
+ (mtime_t)outbytecnt * 8000 / (i_old_duration / 1000));
+ }
+ i_old_bitrate = i_bitrate;
+ i_old_duration = id->i_next_gop_duration;
+ if ( i_bitrate > p_sys->i_vbitrate )
+ {
+ fact_x = (double)i_bitrate / p_sys->i_vbitrate;
+ }
+ else
+ {
+ fact_x = 1.0;
+ }
+ msg_Dbg(p_stream, "new fact_x = %f", fact_x);
+
+ id->p_current_buffer = id->p_next_gop;
+ id->p_next_gop = NULL;
+ id->i_next_gop_duration = 0;
+ id->i_next_gop_size = 0;
+ inbytecnt = 0;
+ outbytecnt = 0;
+ }
+ }
+
+ /* Store the buffer for the next GOP. */
+ sout_BufferChain( &id->p_next_gop, in );
+ id->i_next_gop_duration += in->i_length;
+ id->i_next_gop_size += in->i_size;
+
+ if ( id->p_current_buffer != NULL )
+ {
+ sout_buffer_t * p_next = id->p_current_buffer->p_next;
+ if ( fact_x == 1.0 )
+ {
+ outbytecnt += id->p_current_buffer->i_size;
+ id->p_current_buffer->p_next = NULL;
+ sout_BufferChain( out, id->p_current_buffer );
+ }
+ else
+ {
+ process_frame( p_stream, id, id->p_current_buffer, out );
+ sout_BufferDelete(p_stream->p_sout, id->p_current_buffer);
+ }
+ id->p_current_buffer = p_next;
+ }
+
+ return VLC_SUCCESS;
+}
+
+static int transrate_video_new( sout_stream_t *p_stream,
+ sout_stream_id_t *id )
+{
+ id->p_current_buffer = NULL;
+ id->p_next_gop = NULL;
+ id->i_next_gop_duration = 0;
+ id->i_next_gop_size = 0;
+
+ p_sys = p_stream->p_sys;
+
+ inbytecnt = outbytecnt = 0;
+
+ quant_corr = 0.0;
+ fact_x = 1.0;
+
+ return VLC_SUCCESS;
+}
+
+static void transrate_video_close ( sout_stream_t *p_stream, sout_stream_id_t *id )
+{
+}
projects / vlc / commitdiff