* The functionality is now available in dv.[ch].

Originally committed as revision 2320 to svn://svn.ffmpeg.org/ffmpeg/trunk

2 files changed, 0 insertions, 741 deletions

diff --git a/libavformat/dvcore.c b/libavformat/dvcore.c
deleted file mode 100644
index e14f338008..0000000000
--- a/libavformat/dvcore.c
+++ /dev/null
@@ -1,668 +0,0 @@
-/* 
- * DV format muxer/demuxer
- * Copyright (c) 2003 Roman Shaposhnik
- *
- * Many thanks to Dan Dennedy <dan@dennedy.org> for providing wealth
- * of DV technical info.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#include "avformat.h"
-#include "dvcore.h"
-
-/*
- * The reason why the following three big ugly looking tables are
- * here is my lack of DV spec IEC 61834. The tables were basically 
- * constructed to make code that places packs in SSYB, VAUX and 
- * AAUX blocks very simple and table-driven. They conform to the
- * SMPTE 314M and the output of my personal DV camcorder, neither
- * of which is sufficient for a reliable DV stream producing. Thus
- * while code is still in development I'll be gathering input from
- * people with different DV equipment and modifying the tables to
- * accommodate all the quirks. Later on, if possible, some of them
- * will be folded into smaller tables and/or switch-if logic. For 
- * now, my only excuse is -- they don't eat up that much of a space.
- */
-
-static const int dv_ssyb_packs_dist[12][6] = {
-    { 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 },
-    { 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 },
-    { 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 },
-    { 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 },
-    { 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 },
-    { 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 },
-    { 0x13, 0x62, 0x63, 0x13, 0x62, 0x63 },
-    { 0x13, 0x62, 0x63, 0x13, 0x62, 0x63 },
-    { 0x13, 0x62, 0x63, 0x13, 0x62, 0x63 },
-    { 0x13, 0x62, 0x63, 0x13, 0x62, 0x63 },
-    { 0x13, 0x62, 0x63, 0x13, 0x62, 0x63 },
-    { 0x13, 0x62, 0x63, 0x13, 0x62, 0x63 },
-};
-
-static const int dv_vaux_packs_dist[12][15] = {
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-    { 0x60, 0x61, 0x62, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 
-      0x60, 0x61, 0x62, 0x63, 0xff, 0xff },
-};
-
-static const int dv_aaux_packs_dist[12][9] = {
-    { 0xff, 0xff, 0xff, 0x50, 0x51, 0x52, 0x53, 0xff, 0xff },
-    { 0x50, 0x51, 0x52, 0x53, 0xff, 0xff, 0xff, 0xff, 0xff },
-    { 0xff, 0xff, 0xff, 0x50, 0x51, 0x52, 0x53, 0xff, 0xff },
-    { 0x50, 0x51, 0x52, 0x53, 0xff, 0xff, 0xff, 0xff, 0xff },
-    { 0xff, 0xff, 0xff, 0x50, 0x51, 0x52, 0x53, 0xff, 0xff },
-    { 0x50, 0x51, 0x52, 0x53, 0xff, 0xff, 0xff, 0xff, 0xff },
-    { 0xff, 0xff, 0xff, 0x50, 0x51, 0x52, 0x53, 0xff, 0xff },
-    { 0x50, 0x51, 0x52, 0x53, 0xff, 0xff, 0xff, 0xff, 0xff },
-    { 0xff, 0xff, 0xff, 0x50, 0x51, 0x52, 0x53, 0xff, 0xff },
-    { 0x50, 0x51, 0x52, 0x53, 0xff, 0xff, 0xff, 0xff, 0xff },
-    { 0xff, 0xff, 0xff, 0x50, 0x51, 0x52, 0x53, 0xff, 0xff },
-    { 0x50, 0x51, 0x52, 0x53, 0xff, 0xff, 0xff, 0xff, 0xff },
-};
-
-enum dv_section_type {
-     dv_sect_header  = 0x1f,
-     dv_sect_subcode = 0x3f,
-     dv_sect_vaux    = 0x56,
-     dv_sect_audio   = 0x76,
-     dv_sect_video   = 0x96,
-};
-
-enum dv_pack_type {
-     dv_header525     = 0x3f, /* see dv_write_pack for important details on */ 
-     dv_header625     = 0xbf, /* these two packs */
-     dv_timecode      = 0x13,
-     dv_audio_source  = 0x50,
-     dv_audio_control = 0x51,
-     dv_audio_recdate = 0x52,
-     dv_audio_rectime = 0x53,
-     dv_video_source  = 0x60,
-     dv_video_control = 0x61,
-     dv_viedo_recdate = 0x62,
-     dv_video_rectime = 0x63,
-     dv_unknown_pack  = 0xff,
-};
-
-static const uint16_t dv_audio_shuffle525[10][9] = {
-  {  0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
-  {  6, 36, 66, 26, 56, 86, 16, 46, 76 },
-  { 12, 42, 72,  2, 32, 62, 22, 52, 82 },
-  { 18, 48, 78,  8, 38, 68, 28, 58, 88 },
-  { 24, 54, 84, 14, 44, 74,  4, 34, 64 },
-  
-  {  1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
-  {  7, 37, 67, 27, 57, 87, 17, 47, 77 },
-  { 13, 43, 73,  3, 33, 63, 23, 53, 83 },
-  { 19, 49, 79,  9, 39, 69, 29, 59, 89 },
-  { 25, 55, 85, 15, 45, 75,  5, 35, 65 },
-};
-
-static const uint16_t dv_audio_shuffle625[12][9] = {
-  {   0,  36,  72,  26,  62,  98,  16,  52,  88}, /* 1st channel */
-  {   6,  42,  78,  32,  68, 104,  22,  58,  94},
-  {  12,  48,  84,   2,  38,  74,  28,  64, 100},
-  {  18,  54,  90,   8,  44,  80,  34,  70, 106},
-  {  24,  60,  96,  14,  50,  86,   4,  40,  76},  
-  {  30,  66, 102,  20,  56,  92,  10,  46,  82},
-	
-  {   1,  37,  73,  27,  63,  99,  17,  53,  89}, /* 2nd channel */
-  {   7,  43,  79,  33,  69, 105,  23,  59,  95},
-  {  13,  49,  85,   3,  39,  75,  29,  65, 101},
-  {  19,  55,  91,   9,  45,  81,  35,  71, 107},
-  {  25,  61,  97,  15,  51,  87,   5,  41,  77},  
-  {  31,  67, 103,  21,  57,  93,  11,  47,  83},
-};
-
-static const int dv_audio_frequency[3] = {
-    48000, 44100, 32000,
-};
-    
-const DVprofile dv_profiles[2] = {
-    { .dsf = 0,
-      .frame_size = 120000,        /* 525/60 system (NTSC) */
-      .difseg_size = 10,
-      .frame_rate = 30000,
-      .ltc_divisor = 30,
-      .frame_rate_base = 1001,
-      .height = 480,
-/*    .video_place = dv_place_411, */
-      .audio_stride = 90,
-      .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32Khz */
-      .audio_samples_dist = { 1602, 1601, 1602, 1601, 1602 },
-      .audio_shuffle = dv_audio_shuffle525,
-    }, 
-    { .dsf = 1,
-      .frame_size = 144000,        /* 625/50 system (PAL) */
-      .difseg_size = 12,
-      .frame_rate = 25,
-      .frame_rate_base = 1,
-      .ltc_divisor = 25,
-      .height = 576,
-/*    .video_place = dv_place_420, */
-      .audio_stride = 108,
-      .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32Khz */
-      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
-      .audio_shuffle = dv_audio_shuffle525,
-     }
-};
-
-static inline uint16_t dv_audio_12to16(uint16_t sample)
-{
-    uint16_t shift, result;
-    
-    sample = (sample < 0x800) ? sample : sample | 0xf000;
-    shift = (sample & 0xf00) >> 8;
-
-    if (shift < 0x2 || shift > 0xd) {
-	result = sample;
-    } else if (shift < 0x8) {
-        shift--;
-	result = (sample - (256 * shift)) << shift;
-    } else {
-	shift = 0xe - shift;
-	result = ((sample + ((256 * shift) + 1)) << shift) - 1;
-    }
-
-    return result;
-}
-
-static int dv_write_pack(enum dv_pack_type pack_id, DVMuxContext *c, uint8_t* buf)
-{
-    struct tm tc;
-    time_t ct;
-    int ltc_frame;
-
-    buf[0] = (uint8_t)pack_id;
-    switch (pack_id) {
-    case dv_header525: /* I can't imagine why these two weren't defined as real */
-    case dv_header625: /* packs in SMPTE314M -- they definitely look like ones */
-          buf[1] = 0xf8 |               /* reserved -- always 1 */
-	           (0 & 0x07);          /* APT: Track application ID */
-          buf[2] = (0 << 7)    | /* TF1: audio data is 0 - valid; 1 - invalid */
-	           (0x0f << 3) | /* reserved -- always 1 */
-		   (0 & 0x07);   /* AP1: Audio application ID */
-          buf[3] = (0 << 7)    | /* TF2: video data is 0 - valid; 1 - invalid */  
-	           (0x0f << 3) | /* reserved -- always 1 */
-		   (0 & 0x07);   /* AP2: Video application ID */
-          buf[4] = (0 << 7)    | /* TF3: subcode(SSYB) is 0 - valid; 1 - invalid */ 
-	           (0x0f << 3) | /* reserved -- always 1 */
-		   (0 & 0x07);   /* AP3: Subcode application ID */
-	  break;
-    case dv_timecode:
-          ct = (time_t)(c->frames / ((float)c->sys->frame_rate / 
-                                     (float)c->sys->frame_rate_base));
-          localtime_r(&ct, &tc);
-          /* 
-           * LTC drop-frame frame counter drops two frames (0 and 1) every 
-           * minute, unless it is exactly divisible by 10
-           */
-          ltc_frame = (c->frames + 2*ct/60 - 2*ct/600) % c->sys->ltc_divisor;
-	  buf[1] = (0 << 7) | /* Color fame: 0 - unsync; 1 - sync mode */
-		   (1 << 6) | /* Drop frame timecode: 0 - nondrop; 1 - drop */
-		   ((ltc_frame / 10) << 4) | /* Tens of frames */
-		   (ltc_frame % 10);         /* Units of frames */
-	  buf[2] = (1 << 7) | /* Biphase mark polarity correction: 0 - even; 1 - odd */
-		   ((tc.tm_sec / 10) << 4) | /* Tens of seconds */
-		   (tc.tm_sec % 10);         /* Units of seconds */
-	  buf[3] = (1 << 7) | /* Binary group flag BGF0 */
-		   ((tc.tm_min / 10) << 4) | /* Tens of minutes */
-		   (tc.tm_min % 10);         /* Units of minutes */
-	  buf[4] = (1 << 7) | /* Binary group flag BGF2 */
-		   (1 << 6) | /* Binary group flag BGF1 */
-	           ((tc.tm_hour / 10) << 4) | /* Tens of hours */
-		   (tc.tm_hour % 10);         /* Units of hours */
-          break;
-    case dv_audio_source:  /* AAUX source pack */
-          buf[1] = (0 << 7) | /* locked mode       */
-                   (1 << 6) | /* reserved -- always 1 */
-	           (dv_audio_frame_size(c->sys, c->frames) -
-		    c->sys->audio_min_samples[0]);
-	                      /* # of samples      */
-          buf[2] = (0 << 7) | /* multi-stereo      */
-                   (0 << 5) | /* #of audio channels per block: 0 -- 1 channel */
-                   (0 << 4) | /* pair bit: 0 -- one pair of channels */
-	            0;        /* audio mode        */
-          buf[3] = (1 << 7) | /* res               */
-                   (1 << 6) | /* multi-language flag */
-	           (c->sys->dsf << 5) | /*  system: 60fields/50fields */
-	            0;        /* definition: 0 -- SD (525/625) */
-          buf[4] = (1 << 7) | /* emphasis: 1 -- off */
-                   (0 << 6) | /* emphasis time constant: 0 -- reserved */
-	           (0 << 3) | /* frequency: 0 -- 48Khz, 1 -- 44,1Khz, 2 -- 32Khz */
-                    0;        /* quantization: 0 -- 16bit linear, 1 -- 12bit nonlinear */			    
-          break;
-    case dv_audio_control:
-          buf[1] = (0 << 6) | /* copy protection: 0 -- unrestricted */
-                   (1 << 4) | /* input source: 1 -- digital input */
-	           (3 << 2) | /* compression: 3 -- no information */
-	            0;        /* misc. info/SMPTE emphasis off */
-          buf[2] = (1 << 7) | /* recording start point: 1 -- no */
-                   (1 << 6) | /* recording end point: 1 -- no */
-	           (1 << 3) | /* recording mode: 1 -- original */
-	            7;         
-          buf[3] = (1 << 7) | /* direction: 1 -- forward */
-                    0x20;     /* speed */
-          buf[4] = (1 << 7) | /* reserved -- always 1 */
-                    0x7f;     /* genre category */
-	  break;
-    case dv_audio_recdate:
-    case dv_viedo_recdate:  /* VAUX recording date */
-          ct = c->start_time + (time_t)(c->frames / 
-	       ((float)c->sys->frame_rate / (float)c->sys->frame_rate_base));
-          localtime_r(&ct, &tc);
-	  buf[1] = 0xff; /* ds, tm, tens of time zone, units of time zone */
-	                 /* 0xff is very likely to be "unknown" */
-	  buf[2] = (3 << 6) | /* reserved -- always 1 */
-		   ((tc.tm_mday / 10) << 4) | /* Tens of day */
-		   (tc.tm_mday % 10);         /* Units of day */
-	  buf[3] = /* we set high 4 bits to 0, shouldn't we set them to week? */
-		   (tc.tm_mon % 10);         /* Units of month */
-	  buf[4] = (((tc.tm_year % 100) / 10) << 4) | /* Tens of year */
-		   (tc.tm_year % 10);                 /* Units of year */
-          break;
-    case dv_audio_rectime:  /* AAUX recording time */
-    case dv_video_rectime:  /* VAUX recording time */
-          ct = c->start_time + (time_t)(c->frames / 
-	       ((float)c->sys->frame_rate / (float)c->sys->frame_rate_base));
-          localtime_r(&ct, &tc);
-	  buf[1] = (3 << 6) | /* reserved -- always 1 */
-		   0x3f; /* tens of frame, units of frame: 0x3f - "unknown" ? */
-	  buf[2] = (1 << 7) | /* reserved -- always 1 */ 
-		   ((tc.tm_sec / 10) << 4) | /* Tens of seconds */
-		   (tc.tm_sec % 10);         /* Units of seconds */
-	  buf[3] = (1 << 7) | /* reserved -- always 1 */
-		   ((tc.tm_min / 10) << 4) | /* Tens of minutes */
-		   (tc.tm_min % 10);         /* Units of minutes */
-	  buf[4] = (3 << 6) | /* reserved -- always 1 */ 
-	           ((tc.tm_hour / 10) << 4) | /* Tens of hours */
-		   (tc.tm_hour % 10);         /* Units of hours */
-	  break;
-    case dv_video_source:
-	  buf[1] = 0xff; /* reserved -- always 1 */
-	  buf[2] = (1 << 7) | /* B/W: 0 - b/w, 1 - color */
-		   (1 << 6) | /* following CLF is valid - 0, invalid - 1 */
-		   (3 << 4) | /* CLF: color frames id (see ITU-R BT.470-4) */
-		   0xf; /* reserved -- always 1 */
-	  buf[3] = (3 << 6) | /* reserved -- always 1 */
-		   (c->sys->dsf << 5) | /*  system: 60fields/50fields */
-		   0; /* signal type video compression */
-	  buf[4] = 0xff; /* VISC: 0xff -- no information */
-          break;
-    case dv_video_control:
-	  buf[1] = (0 << 6) | /* Copy generation management (CGMS) 0 -- free */
-		   0x3f; /* reserved -- always 1 */
-	  buf[2] = 0xc8 | /* reserved -- always b11001xxx */
-		   c->aspect;
-	  buf[3] = (1 << 7) | /* Frame/field flag 1 -- frame, 0 -- field */
-		   (1 << 6) | /* First/second field flag 0 -- field 2, 1 -- field 1 */
-		   (1 << 5) | /* Frame change flag 0 -- same picture as before, 1 -- different */
-		   (1 << 4) | /* 1 - interlaced, 0 - noninterlaced */
-		   0xc; /* reserved -- always b1100 */
-	  buf[4] = 0xff; /* reserved -- always 1 */
-          break;
-    default:
-          buf[1] = buf[2] = buf[3] = buf[4] = 0xff;
-    }
-    return 5;
-}
-
-static inline int dv_write_dif_id(enum dv_section_type t, uint8_t seq_num, 
-                                  uint8_t dif_num, uint8_t* buf)
-{
-    buf[0] = (uint8_t)t;    /* Section type */
-    buf[1] = (seq_num<<4) | /* DIF seq number 0-9 for 525/60; 0-11 for 625/50 */
-	     (0 << 3) |     /* FSC: for 50Mb/s 0 - first channel; 1 - second */
-	     7;             /* reserved -- always 1 */
-    buf[2] = dif_num;       /* DIF block number Video: 0-134, Audio: 0-8 */
-    return 3;
-}
-
-static inline int dv_write_ssyb_id(uint8_t syb_num, uint8_t fr, uint8_t* buf)
-{
-    if (syb_num == 0 || syb_num == 6) {
-	buf[0] = (fr<<7) | /* FR ID 1 - first half of each channel; 0 - second */
-		 (0<<4)  | /* AP3 (Subcode application ID) */
-		 0x0f;     /* reserved -- always 1 */
-    } 
-    else if (syb_num == 11) {
-	buf[0] = (fr<<7) | /* FR ID 1 - first half of each channel; 0 - second */
-                 0x7f;     /* reserved -- always 1 */
-    }
-    else {
-	buf[0] = (fr<<7) | /* FR ID 1 - first half of each channel; 0 - second */
-                 (0<<4)  | /* APT (Track application ID) */
-		 0x0f;     /* reserved -- always 1 */
-    }
-    buf[1] = 0xf0 |            /* reserved -- always 1 */
-             (syb_num & 0x0f); /* SSYB number 0 - 11   */
-    buf[2] = 0xff;             /* reserved -- always 1 */
-    return 3;
-}
-
-void dv_format_frame(DVMuxContext *c, uint8_t* buf)
-{
-    int i, j, k;
-    
-    for (i = 0; i < c->sys->difseg_size; i++) {
-       memset(buf, 0xff, 80 * 6); /* First 6 DIF blocks are for control data */
-       
-       /* DV header: 1DIF */
-       buf += dv_write_dif_id(dv_sect_header, i, 0, buf);
-       buf += dv_write_pack((c->sys->dsf ? dv_header625 : dv_header525), c, buf);
-       buf += 72; /* unused bytes */
-				   
-       /* DV subcode: 2DIFs */
-       for (j = 0; j < 2; j++) {
-          buf += dv_write_dif_id( dv_sect_subcode, i, j, buf);
-	  for (k = 0; k < 6; k++) {
-	     buf += dv_write_ssyb_id(k, (i < c->sys->difseg_size/2), buf);
-	     buf += dv_write_pack(dv_ssyb_packs_dist[i][k], c, buf);
-	  }
-	  buf += 29; /* unused bytes */
-       }
-       
-       /* DV VAUX: 3DIFs */
-       for (j = 0; j < 3; j++) {
-	  buf += dv_write_dif_id(dv_sect_vaux, i, j, buf);
-	  for (k = 0; k < 15 ; k++)
-	     buf += dv_write_pack(dv_vaux_packs_dist[i][k], c, buf);
-	  buf += 2; /* unused bytes */
-       } 
-       
-       /* DV Audio/Video: 135 Video DIFs + 9 Audio DIFs */
-       for (j = 0; j < 135; j++) {
-            if (j%15 == 0) {
-	        buf += dv_write_dif_id(dv_sect_audio, i, j/15, buf);
-	        buf += dv_write_pack(dv_aaux_packs_dist[i][j/15], c, buf);
-		buf += 72; /* shuffled PCM audio */
-	    }
-	    buf += dv_write_dif_id(dv_sect_video, i, j, buf);
-	    buf += 77; /* 1 video macro block: 1 bytes control
-			                       4 * 14 bytes Y 8x8 data
-			                           10 bytes Cr 8x8 data
-						   10 bytes Cb 8x8 data */
-       }
-    }
-}
-
-void dv_inject_audio(DVMuxContext *c, const uint8_t* pcm, uint8_t* frame_ptr)
-{
-    int i, j, d, of;
-    for (i = 0; i < c->sys->difseg_size; i++) {
-       frame_ptr += 6 * 80; /* skip DIF segment header */
-       for (j = 0; j < 9; j++) {
-          for (d = 8; d < 80; d+=2) {
-	     of = c->sys->audio_shuffle[i][j] + (d - 8)/2 * c->sys->audio_stride;
-	     frame_ptr[d] = pcm[of*2+1]; // FIXME: may be we have to admit
-	     frame_ptr[d+1] = pcm[of*2]; //        that DV is a big endian PCM       
-          }
-          frame_ptr += 16 * 80; /* 15 Video DIFs + 1 Audio DIF */
-       }
-    }
-}
-
-void dv_inject_video(DVMuxContext *c, const uint8_t* video_data, uint8_t* frame_ptr)
-{
-    int i, j;
-    int ptr = 0;
-
-    for (i = 0; i < c->sys->difseg_size; i++) {
-       ptr += 6 * 80; /* skip DIF segment header */
-       for (j = 0; j < 135; j++) {
-            if (j%15 == 0)
-	        ptr += 80; /* skip Audio DIF */
-	    ptr += 3;
-	    memcpy(frame_ptr + ptr, video_data + ptr, 77);
-	    ptr += 77;
-       }
-    }
-}
-
-int dv_audio_frame_size(const DVprofile* sys, int frame)
-{
-    return sys->audio_samples_dist[frame % (sizeof(sys->audio_samples_dist)/
-		                            sizeof(sys->audio_samples_dist[0]))];
-}
-
-const DVprofile* dv_frame_profile(uint8_t* frame)
-{
-    return &dv_profiles[!!(frame[3] & 0x80)]; /* Header, DSF flag */
-}
-
-/* 
- * This is the dumbest implementation of all -- it simply looks at
- * a fixed offset and if pack isn't there -- fails. We might want
- * to have a fallback mechanism for complete search of missing packs.
- */
-const uint8_t* dv_extract_pack(uint8_t* frame, enum dv_pack_type t)
-{
-    int offs;
-    
-    switch (t) {
-    case dv_audio_source:
-          offs = (80*6 + 80*16*3 + 3);
-	  break;
-    case dv_audio_control:
-          offs = (80*6 + 80*16*4 + 3);
-	  break;
-    case dv_video_control:
-          offs = (80*5 + 48 + 5);
-          break;
-    default:
-          return NULL;
-    }   
-
-    return (frame[offs] == t ? &frame[offs] : NULL);
-}
-
-/* 
- * There's a couple of assumptions being made here:
- * 1. By default we silence erroneous (0x8000/16bit 0x800/12bit) audio samples.
- *    We can pass them upwards when ffmpeg will be ready to deal with them.
- * 2. We don't do software emphasis.
- * 3. Audio is always returned as 16bit linear samples: 12bit nonlinear samples
- *    are converted into 16bit linear ones.
- */
-int dv_extract_audio(uint8_t* frame, uint8_t* pcm, AVCodecContext* avctx)
-{
-    int size, i, j, d, of, smpls, freq, quant;
-    uint16_t lc, rc;
-    const DVprofile* sys;
-    const uint8_t* as_pack;
-    
-    as_pack = dv_extract_pack(frame, dv_audio_source);
-    if (!as_pack)    /* No audio ? */
-	return 0;
-   
-    sys = dv_frame_profile(frame);
-    smpls = as_pack[1] & 0x3f; /* samples in this frame - min. samples */
-    freq = (as_pack[4] >> 3) & 0x07; /* 0 - 48KHz, 1 - 44,1kHz, 2 - 32 kHz */
-    quant = as_pack[4] & 0x07; /* 0 - 16bit linear, 1 - 12bit nonlinear */
-    
-    if (quant > 1)
-	return -1; /* Unsupported quantization */
-
-    avctx->sample_rate = dv_audio_frequency[freq];
-    avctx->channels = 2;
-    avctx->bit_rate = avctx->channels * avctx->sample_rate * 16;
-    // What about:
-    // avctx->frame_size =
-   
-    size = (sys->audio_min_samples[freq] + smpls) * 4; /* 2ch, 2bytes */
-
-    /* for each DIF segment */
-    for (i = 0; i < sys->difseg_size; i++) {
-       frame += 6 * 80; /* skip DIF segment header */
-       for (j = 0; j < 9; j++) {
-          for (d = 8; d < 80; d += 2) {
-	     if (quant == 0) {  /* 16bit quantization */
-		 of = sys->audio_shuffle[i][j] + (d - 8)/2 * sys->audio_stride;
-		 pcm[of*2] = frame[d+1]; // FIXME: may be we have to admit
-		 pcm[of*2+1] = frame[d]; //        that DV is a big endian PCM
-		 if (pcm[of*2+1] == 0x80 && pcm[of*2] == 0x00)
-		     pcm[of*2+1] = 0;
-	      } else {           /* 12bit quantization */
-		 if (i >= sys->difseg_size/2)
-	             goto out;  /* We're not doing 4ch at this time */
-		       
-		 lc = ((uint16_t)frame[d] << 4) | 
-		      ((uint16_t)frame[d+2] >> 4);
-		 rc = ((uint16_t)frame[d+1] << 4) |
-	              ((uint16_t)frame[d+2] & 0x0f);
-		 lc = (lc == 0x800 ? 0 : dv_audio_12to16(lc));
-		 rc = (rc == 0x800 ? 0 : dv_audio_12to16(rc));
-
-		 of = sys->audio_shuffle[i][j] + (d - 8)/3 * sys->audio_stride;
-		 pcm[of*2] = lc & 0xff; // FIXME: may be we have to admit
-		 pcm[of*2+1] = lc >> 8; //        that DV is a big endian PCM
-		 of = sys->audio_shuffle[i+sys->difseg_size/2][j] + 
-		      (d - 8)/3 * sys->audio_stride;
-		 pcm[of*2] = rc & 0xff; // FIXME: may be we have to admit
-		 pcm[of*2+1] = rc >> 8; //        that DV is a big endian PCM
-		 ++d;
-	      }
-	  }
-		
-	  frame += 16 * 80; /* 15 Video DIFs + 1 Audio DIF */
-        }
-    }
-
-out:
-    return size;
-}
-
-/* FIXME: The following three functions could be underengineered ;-) */
-void dv_assemble_frame(DVMuxContext *c, const uint8_t* video, const uint8_t* audio, int asize)
-{
-    uint8_t pcm[8192];
-    uint8_t* frame = &c->frame_buf[0];
-    int fsize, reqasize;
-   
-    if (c->has_audio && c->has_video) {  /* must be a stale frame */
-        dv_format_frame(c, frame);
-	c->frames++;
-	c->has_audio = c->has_video = 0;
-    }
-    
-    if (video) {
-        /* FIXME: we have to have more sensible approach than this one */
-	if (c->has_video)
-	    fprintf(stderr, "Can't process DV frame #%d. Insufficient audio data or severe sync problem.\n", c->frames);
-	    
-        dv_inject_video(c, video, frame);
-	c->has_video = 1;
-    } 
-    if (audio) {
-        reqasize = 4 * dv_audio_frame_size(c->sys, c->frames);
-        fsize = fifo_size(&c->audio_data, c->audio_data.rptr);
-	if (fsize + asize >= reqasize) {
-            if (fsize >= reqasize) {
-	        fifo_read(&c->audio_data, &pcm[0], reqasize, &c->audio_data.rptr);
-            } else {
-	        fifo_read(&c->audio_data, &pcm[0], fsize, &c->audio_data.rptr);
-                memcpy(&pcm[fsize], &audio[0], reqasize - fsize);
-		audio += reqasize - fsize;
-		asize -= reqasize - fsize;
-	    }
-	    dv_inject_audio(c, &pcm[0], frame);
-	    c->has_audio = 1;
-	}
-    
-        /* FIXME: we have to have more sensible approach than this one */
-        if (fifo_size(&c->audio_data, c->audio_data.rptr) + asize >= AVCODEC_MAX_AUDIO_FRAME_SIZE)
-	    fprintf(stderr, "Can't process DV frame #%d. Insufficient video data or severe sync problem.\n", c->frames);
-	fifo_write(&c->audio_data, (uint8_t *)audio, asize, &c->audio_data.wptr);
-    }
-}
-
-int dv_core_init(DVMuxContext *c, AVStream *streams[])
-{
-    /* We have to sort out where audio and where video stream is */
-    if (streams[0]->codec.codec_type == CODEC_TYPE_VIDEO &&
-        streams[1]->codec.codec_type == CODEC_TYPE_AUDIO) {
-       c->vst = 0;
-       c->ast = 1;
-    }
-    else if (streams[1]->codec.codec_type == CODEC_TYPE_VIDEO &&
-             streams[0]->codec.codec_type == CODEC_TYPE_AUDIO) {
-	    c->vst = 1;
- 	    c->ast = 0;
-    } else
-        goto bail_out;
-  
-    /* Some checks -- DV format is very picky about its incoming streams */
-    if (streams[c->vst]->codec.codec_id != CODEC_ID_DVVIDEO ||
-	streams[c->ast]->codec.codec_id != CODEC_ID_PCM_S16LE)
-       goto bail_out;
-    if (streams[c->ast]->codec.sample_rate != 48000 ||
-	streams[c->ast]->codec.channels != 2)
-       goto bail_out;
-	
-    if (streams[c->vst]->codec.frame_rate == 25 &&
-        streams[c->vst]->codec.frame_rate_base == 1) {
-        /* May be we have to pick sys for every frame */
-	c->sys = &dv_profiles[1];
-    }
-    else if (streams[c->vst]->codec.frame_rate == 30000 &&
-             streams[c->vst]->codec.frame_rate_base == 1001) {
-	/* May be we have to pick sys for every frame */
-	c->sys = &dv_profiles[0];
-    } else
-        goto bail_out;
-    
-    /* Ok, everything seems to be in working order */
-    c->frames = 0;
-    c->has_audio = c->has_video = 0;
-    c->start_time = time(NULL);
-    c->aspect = 0; /* 4:3 is the default */
-    if (streams[c->vst]->codec.aspect_ratio == 16.0 / 9.0)
-        c->aspect = 0x07;
-
-    if (fifo_init(&c->audio_data, AVCODEC_MAX_AUDIO_FRAME_SIZE) < 0)
-        goto bail_out;
-
-    dv_format_frame(c, &c->frame_buf[0]);
-
-    return 0;
-    
-bail_out:
-    return -1;
-}
-
-void dv_core_delete(DVMuxContext *c)
-{    
-    fifo_free(&c->audio_data);
-}
diff --git a/libavformat/dvcore.h b/libavformat/dvcore.h
deleted file mode 100644
index b492cc5995..0000000000
--- a/libavformat/dvcore.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/* 
- * DV format muxer/demuxer
- * Copyright (c) 2003 Roman Shaposhnik
- *
- * Many thanks to Dan Dennedy <dan@dennedy.org> for providing wealth
- * of DV technical info.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#include <time.h>
-#include "avformat.h"
-
-/* 
- * DVprofile is used to express the differences between various 
- * DV flavors. For now it's primarily used for differentiating
- * 525/60 and 625/50, but the plans are to use it for various
- * DV specs as well (e.g. SMPTE314M vs. IEC 61834).
- */
-typedef struct DVprofile {
-    int            dsf;                  /* value of the dsf in the DV header */
-    int            frame_size;           /* total size of one frame in bytes */
-    int            difseg_size;          /* number of DIF segments */
-    int            frame_rate;      
-    int            frame_rate_base;
-    int            ltc_divisor;          /* FPS from the LTS standpoint */
-    int            height;               /* picture height in pixels */
-    uint16_t       *video_place;         /* positions of all DV macro blocks */
-    
-    int            audio_stride;         /* size of audio_shuffle table */
-    int            audio_min_samples[3]; /* min ammount of audio samples */
-                                         /* for 48Khz, 44.1Khz and 32Khz */
-    int            audio_samples_dist[5];/* how many samples are supposed to be */
-                                         /* in each frame in a 5 frames window */
-    const uint16_t (*audio_shuffle)[9];  /* PCM shuffling table */
-} DVprofile;
-
-typedef struct DVMuxContext {
-    const DVprofile*  sys;    /* Current DV profile. E.g.: 525/60, 625/50 */
-    uint8_t     frame_buf[144000]; /* frame under contruction */
-    FifoBuffer  audio_data;   /* Fifo for storing excessive amounts of PCM */
-    int         frames;       /* Number of a current frame */
-    time_t      start_time;   /* Start time of recording */
-    uint8_t     aspect;       /* Aspect ID 0 - 4:3, 7 - 16:9 */
-    int         ast, vst;     /* Audio and Video stream indecies */
-    int         has_audio;    /* frame under contruction has audio */
-    int         has_video;    /* frame under contruction has video */
-} DVMuxContext;
-
-void dv_format_frame(DVMuxContext *, uint8_t*);
-void dv_inject_audio(DVMuxContext *, const uint8_t*, uint8_t*);
-void dv_inject_video(DVMuxContext *, const uint8_t*, uint8_t*);
-
-int  dv_extract_audio(uint8_t*, uint8_t*, AVCodecContext*);
-
-int  dv_audio_frame_size(const DVprofile*, int);
-
-void dv_assemble_frame(DVMuxContext *c, const uint8_t*, const uint8_t*, int);
-int  dv_core_init(DVMuxContext *, AVStream*[]);
-void dv_core_delete(DVMuxContext *);
-
-const DVprofile* dv_frame_profile(uint8_t*);