functional part of the commit below

=====
Author: bcoudurier
Date: Sat Mar  3 15:33:55 2007
New Revision: 8204

Modified:
   trunk/libavformat/mov.c

   Log:
   cosmetics, cleanup tables, add pcm 24/32 le tags

Originally committed as revision 8207 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 1786 insertions, 0 deletions

diff --git a/libavformat/mov.c.tmp b/libavformat/mov.c.tmp
new file mode 100644
index 0000000000..bd1f30f47e
--- /dev/null
+++ b/libavformat/mov.c.tmp
@@ -0,0 +1,1786 @@
+/*
+ * MOV demuxer
+ * Copyright (c) 2001 Fabrice Bellard.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <limits.h>
+
+//#define DEBUG
+
+#include "avformat.h"
+#include "riff.h"
+#include "isom.h"
+#include "dv.h"
+
+#ifdef CONFIG_ZLIB
+#include <zlib.h>
+#endif
+
+/*
+ * First version by Francois Revol revol@free.fr
+ * Seek function by Gael Chardon gael.dev@4now.net
+ *
+ * Features and limitations:
+ * - reads most of the QT files I have (at least the structure),
+ *   the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
+ *   FIXED, Francois Revol, 07/17/2002
+ * - ffmpeg has nearly none of the usual QuickTime codecs,
+ *   although I succesfully dumped raw and mp3 audio tracks off .mov files.
+ *   Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
+ * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
+ *   (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
+ *   http://mpeg.telecomitalialab.com/faq.htm
+ * - the code is quite ugly... maybe I won't do it recursive next time :-)
+ * - seek is not supported with files that contain edit list
+ *
+ * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
+ * when coding this :) (it's a writer anyway)
+ *
+ * Reference documents:
+ * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
+ * Apple:
+ *  http://developer.apple.com/documentation/QuickTime/QTFF/
+ *  http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
+ * QuickTime is a trademark of Apple (AFAIK :))
+ */
+
+#include "qtpalette.h"
+
+
+#undef NDEBUG
+#include <assert.h>
+
+static const AVCodecTag mov_video_tags[] = {
+/*  { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
+    { CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
+/*  { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
+    { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */
+/* Graphics */
+/* Animation */
+/* Apple video */
+/* Kodak Photo CD */
+    { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
+    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
+    { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
+    { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
+    { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
+/*    { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
+    { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
+/* Sorenson video */
+    { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
+    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
+    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
+    { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
+    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
+    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
+    { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
+    { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
+/*    { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
+    { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
+    { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
+    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
+    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
+    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
+    { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
+    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
+    { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
+    { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
+    { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
+    { CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') },
+    { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
+    { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
+    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 produced by Sony HD camera */
+    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* HDV produced by FCP */
+    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
+    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
+    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
+    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
+    { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
+    { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'n') }, /* AVID IMX NTSC */
+    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
+    //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
+    //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
+    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
+    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
+    { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
+    //{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
+    { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
+    { CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
+    { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
+    { CODEC_ID_VC1,  MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
+    { CODEC_ID_PNG,  MKTAG('p', 'n', 'g', ' ') },
+    { CODEC_ID_NONE, 0 },
+};
+
+static const AVCodecTag mov_audio_tags[] = {
+    { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
+    { CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
+    { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
+    { CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
+    { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */
+    { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
+    { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
+    { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /*  */
+    { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /*  */
+    { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /*  */
+    { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
+    { CODEC_ID_ADPCM_MS, MKTAG('m', 's', 0x00, 0x02) }, /* MS ADPCM */
+    { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
+    { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
+
+    { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
+    { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
+    { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
+/*    { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
+/* MP4 tags */
+    { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
+    /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
+    { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
+    { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
+    { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */
+    { CODEC_ID_ALAC,MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
+    { CODEC_ID_QDM2,MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
+    { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
+    { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
+    { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
+    { CODEC_ID_NONE, 0 },
+};
+
+/* the QuickTime file format is quite convoluted...
+ * it has lots of index tables, each indexing something in another one...
+ * Here we just use what is needed to read the chunks
+ */
+
+typedef struct MOV_sample_to_chunk_tbl {
+    long first;
+    long count;
+    long id;
+} MOV_sample_to_chunk_tbl;
+
+typedef struct {
+    uint32_t type;
+    int64_t offset;
+    int64_t size; /* total size (excluding the size and type fields) */
+} MOV_atom_t;
+
+typedef struct {
+    int seed;
+    int flags;
+    int size;
+    void* clrs;
+} MOV_ctab_t;
+
+typedef struct MOV_mdat_atom_s {
+    offset_t offset;
+    int64_t size;
+} MOV_mdat_atom_t;
+
+typedef struct {
+    uint8_t  version;
+    uint32_t flags; // 24bit
+
+    /* 0x03 ESDescrTag */
+    uint16_t es_id;
+#define MP4ODescrTag                    0x01
+#define MP4IODescrTag                   0x02
+#define MP4ESDescrTag                   0x03
+#define MP4DecConfigDescrTag            0x04
+#define MP4DecSpecificDescrTag          0x05
+#define MP4SLConfigDescrTag             0x06
+#define MP4ContentIdDescrTag            0x07
+#define MP4SupplContentIdDescrTag       0x08
+#define MP4IPIPtrDescrTag               0x09
+#define MP4IPMPPtrDescrTag              0x0A
+#define MP4IPMPDescrTag                 0x0B
+#define MP4RegistrationDescrTag         0x0D
+#define MP4ESIDIncDescrTag              0x0E
+#define MP4ESIDRefDescrTag              0x0F
+#define MP4FileIODescrTag               0x10
+#define MP4FileODescrTag                0x11
+#define MP4ExtProfileLevelDescrTag      0x13
+#define MP4ExtDescrTagsStart            0x80
+#define MP4ExtDescrTagsEnd              0xFE
+    uint8_t  stream_priority;
+
+    /* 0x04 DecConfigDescrTag */
+    uint8_t  object_type_id;
+    uint8_t  stream_type;
+    /* XXX: really streamType is
+     * only 6bit, followed by:
+     * 1bit  upStream
+     * 1bit  reserved
+     */
+    uint32_t buffer_size_db; // 24
+    uint32_t max_bitrate;
+    uint32_t avg_bitrate;
+
+    /* 0x05 DecSpecificDescrTag */
+    uint8_t  decoder_cfg_len;
+    uint8_t *decoder_cfg;
+
+    /* 0x06 SLConfigDescrTag */
+    uint8_t  sl_config_len;
+    uint8_t *sl_config;
+} MOV_esds_t;
+
+struct MOVParseTableEntry;
+
+typedef struct MOVStreamContext {
+    int ffindex; /* the ffmpeg stream id */
+    long next_chunk;
+    unsigned int chunk_count;
+    int64_t *chunk_offsets;
+    unsigned int stts_count;
+    Time2Sample *stts_data;
+    unsigned int ctts_count;
+    Time2Sample *ctts_data;
+    unsigned int edit_count; /* number of 'edit' (elst atom) */
+    unsigned int sample_to_chunk_sz;
+    MOV_sample_to_chunk_tbl *sample_to_chunk;
+    int sample_to_ctime_index;
+    int sample_to_ctime_sample;
+    unsigned int sample_size;
+    unsigned int sample_count;
+    long *sample_sizes;
+    unsigned int keyframe_count;
+    long *keyframes;
+    int time_scale;
+    int time_rate;
+    long current_sample;
+    MOV_esds_t esds;
+    AVRational sample_size_v1;
+    int dv_audio_container;
+} MOVStreamContext;
+
+typedef struct MOVContext {
+    AVFormatContext *fc;
+    int time_scale;
+    int64_t duration; /* duration of the longest track */
+    int found_moov; /* when both 'moov' and 'mdat' sections has been found */
+    int found_mdat; /* we suppose we have enough data to read the file */
+    int64_t mdat_offset;
+    int total_streams;
+    MOVStreamContext *streams[MAX_STREAMS];
+
+    int ctab_size;
+    MOV_ctab_t **ctab;           /* color tables */
+    const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */
+    /* NOTE: for recursion save to/ restore from local variable! */
+
+    AVPaletteControl palette_control;
+    MOV_mdat_atom_t *mdat_list;
+    int mdat_count;
+    DVDemuxContext *dv_demux;
+    AVFormatContext *dv_fctx;
+    int isom; /* 1 if file is ISO Media (mp4/3gp) */
+} MOVContext;
+
+
+/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
+
+/* those functions parse an atom */
+/* return code:
+ 1: found what I wanted, exit
+ 0: continue to parse next atom
+ -1: error occured, exit
+ */
+typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
+
+/* links atom IDs to parse functions */
+typedef struct MOVParseTableEntry {
+    uint32_t type;
+    mov_parse_function func;
+} MOVParseTableEntry;
+
+static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    int64_t total_size = 0;
+    MOV_atom_t a;
+    int i;
+    int err = 0;
+
+    a.offset = atom.offset;
+
+    if (atom.size < 0)
+        atom.size = 0x7fffffffffffffffLL;
+    while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
+        a.size = atom.size;
+        a.type=0L;
+        if(atom.size >= 8) {
+            a.size = get_be32(pb);
+            a.type = get_le32(pb);
+        }
+        total_size += 8;
+        a.offset += 8;
+        dprintf("type: %08x  %.4s  sz: %"PRIx64"  %"PRIx64"   %"PRIx64"\n", a.type, (char*)&a.type, a.size, atom.size, total_size);
+        if (a.size == 1) { /* 64 bit extended size */
+            a.size = get_be64(pb) - 8;
+            a.offset += 8;
+            total_size += 8;
+        }
+        if (a.size == 0) {
+            a.size = atom.size - total_size;
+            if (a.size <= 8)
+                break;
+        }
+        for (i = 0; c->parse_table[i].type != 0L
+             && c->parse_table[i].type != a.type; i++)
+            /* empty */;
+
+        a.size -= 8;
+
+        if(a.size < 0)
+            break;
+
+        if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
+            url_fskip(pb, a.size);
+        } else {
+            offset_t start_pos = url_ftell(pb);
+            int64_t left;
+            err = (c->parse_table[i].func)(c, pb, a);
+            left = a.size - url_ftell(pb) + start_pos;
+            if (left > 0) /* skip garbage at atom end */
+                url_fskip(pb, left);
+        }
+
+        a.offset += a.size;
+        total_size += a.size;
+    }
+
+    if (!err && total_size < atom.size && atom.size < 0x7ffff) {
+        url_fskip(pb, atom.size - total_size);
+    }
+
+    return err;
+}
+
+static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+#if 1
+    url_fskip(pb, atom.size); // for now
+#else
+    VERY VERY BROKEN, NEVER execute this, needs rewrite
+    unsigned int len;
+    MOV_ctab_t *t;
+    c->ctab = av_realloc(c->ctab, ++c->ctab_size);
+    t = c->ctab[c->ctab_size];
+    t->seed = get_be32(pb);
+    t->flags = get_be16(pb);
+    t->size = get_be16(pb) + 1;
+    len = 2 * t->size * 4;
+    if (len > 0) {
+        t->clrs = av_malloc(len); // 16bit A R G B
+        if (t->clrs)
+            get_buffer(pb, t->clrs, len);
+    }
+#endif
+
+    return 0;
+}
+
+static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    uint32_t type;
+    uint32_t ctype;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+    /* component type */
+    ctype = get_le32(pb);
+    type = get_le32(pb); /* component subtype */
+
+    dprintf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
+    dprintf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
+    if(!ctype)
+        c->isom = 1;
+    if(type == MKTAG('v', 'i', 'd', 'e'))
+        st->codec->codec_type = CODEC_TYPE_VIDEO;
+    else if(type == MKTAG('s', 'o', 'u', 'n'))
+        st->codec->codec_type = CODEC_TYPE_AUDIO;
+    else if(type == MKTAG('m', '1', 'a', ' '))
+        st->codec->codec_id = CODEC_ID_MP2;
+    else if(type == MKTAG('s', 'u', 'b', 'p')) {
+        st->codec->codec_type = CODEC_TYPE_SUBTITLE;
+        st->codec->codec_id = CODEC_ID_DVD_SUBTITLE;
+    }
+    get_be32(pb); /* component  manufacture */
+    get_be32(pb); /* component flags */
+    get_be32(pb); /* component flags mask */
+
+    if(atom.size <= 24)
+        return 0; /* nothing left to read */
+
+    url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
+    return 0;
+}
+
+static int mov_mp4_read_descr_len(ByteIOContext *pb)
+{
+    int len = 0;
+    int count = 4;
+    while (count--) {
+        int c = get_byte(pb);
+        len = (len << 7) | (c & 0x7f);
+        if (!(c & 0x80))
+            break;
+    }
+    return len;
+}
+
+static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
+{
+    int len;
+    *tag = get_byte(pb);
+    len = mov_mp4_read_descr_len(pb);
+    dprintf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
+    return len;
+}
+
+static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    int tag, len;
+
+    /* Well, broken but suffisant for some MP4 streams */
+    get_be32(pb); /* version + flags */
+    len = mov_mp4_read_descr(pb, &tag);
+    if (tag == MP4ESDescrTag) {
+        get_be16(pb); /* ID */
+        get_byte(pb); /* priority */
+    } else
+        get_be16(pb); /* ID */
+
+    len = mov_mp4_read_descr(pb, &tag);
+    if (tag == MP4DecConfigDescrTag) {
+        sc->esds.object_type_id = get_byte(pb);
+        sc->esds.stream_type = get_byte(pb);
+        sc->esds.buffer_size_db = get_be24(pb);
+        sc->esds.max_bitrate = get_be32(pb);
+        sc->esds.avg_bitrate = get_be32(pb);
+
+        st->codec->codec_id= codec_get_id(ff_mov_obj_type, sc->esds.object_type_id);
+        dprintf("esds object type id %d\n", sc->esds.object_type_id);
+        len = mov_mp4_read_descr(pb, &tag);
+        if (tag == MP4DecSpecificDescrTag) {
+            dprintf("Specific MPEG4 header len=%d\n", len);
+            st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
+            if (st->codec->extradata) {
+                get_buffer(pb, st->codec->extradata, len);
+                st->codec->extradata_size = len;
+                /* from mplayer */
+                if ((*st->codec->extradata >> 3) == 29) {
+                    st->codec->codec_id = CODEC_ID_MP3ON4;
+                }
+            }
+        }
+    }
+    return 0;
+}
+
+/* this atom contains actual media data */
+static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    if(atom.size == 0) /* wrong one (MP4) */
+        return 0;
+    c->mdat_list = av_realloc(c->mdat_list, (c->mdat_count + 1) * sizeof(*c->mdat_list));
+    c->mdat_list[c->mdat_count].offset = atom.offset;
+    c->mdat_list[c->mdat_count].size = atom.size;
+    c->mdat_count++;
+    c->found_mdat=1;
+    c->mdat_offset = atom.offset;
+    if(c->found_moov)
+        return 1; /* found both, just go */
+    url_fskip(pb, atom.size);
+    return 0; /* now go for moov */
+}
+
+static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    uint32_t type = get_le32(pb);
+
+    if (type != MKTAG('q','t',' ',' '))
+        c->isom = 1;
+    av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
+    get_be32(pb); /* minor version */
+    url_fskip(pb, atom.size - 8);
+    return 0;
+}
+
+/* this atom should contain all header atoms */
+static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    int err;
+
+    err = mov_read_default(c, pb, atom);
+    /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
+    /* so we don't parse the whole file if over a network */
+    c->found_moov=1;
+    if(c->found_mdat)
+        return 1; /* found both, just go */
+    return 0; /* now go for mdat */
+}
+
+
+static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    int version = get_byte(pb);
+    int lang;
+
+    if (version > 1)
+        return 1; /* unsupported */
+
+    get_byte(pb); get_byte(pb);
+    get_byte(pb); /* flags */
+
+    if (version == 1) {
+        get_be64(pb);
+        get_be64(pb);
+    } else {
+        get_be32(pb); /* creation time */
+        get_be32(pb); /* modification time */
+    }
+
+    sc->time_scale = get_be32(pb);
+    st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
+
+    lang = get_be16(pb); /* language */
+    ff_mov_lang_to_iso639(lang, st->language);
+    get_be16(pb); /* quality */
+
+    return 0;
+}
+
+static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    int version = get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+    if (version == 1) {
+        get_be64(pb);
+        get_be64(pb);
+    } else {
+        get_be32(pb); /* creation time */
+        get_be32(pb); /* modification time */
+    }
+    c->time_scale = get_be32(pb); /* time scale */
+#ifdef DEBUG
+    av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale);
+#endif
+    c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
+    get_be32(pb); /* preferred scale */
+
+    get_be16(pb); /* preferred volume */
+
+    url_fskip(pb, 10); /* reserved */
+
+    url_fskip(pb, 36); /* display matrix */
+
+    get_be32(pb); /* preview time */
+    get_be32(pb); /* preview duration */
+    get_be32(pb); /* poster time */
+    get_be32(pb); /* selection time */
+    get_be32(pb); /* selection duration */
+    get_be32(pb); /* current time */
+    get_be32(pb); /* next track ID */
+
+    return 0;
+}
+
+static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+
+    if((uint64_t)atom.size > (1<<30))
+        return -1;
+
+    // currently SVQ3 decoder expect full STSD header - so let's fake it
+    // this should be fixed and just SMI header should be passed
+    av_free(st->codec->extradata);
+    st->codec->extradata_size = 0x5a + atom.size;
+    st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+
+    if (st->codec->extradata) {
+        memcpy(st->codec->extradata, "SVQ3", 4); // fake
+        get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
+        dprintf("Reading SMI %"PRId64"  %s\n", atom.size, st->codec->extradata + 0x5a);
+    } else
+        url_fskip(pb, atom.size);
+
+    return 0;
+}
+
+static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    int little_endian = get_be16(pb);
+
+    if (little_endian) {
+        switch (st->codec->codec_id) {
+        case CODEC_ID_PCM_S24BE:
+            st->codec->codec_id = CODEC_ID_PCM_S24LE;
+            break;
+        case CODEC_ID_PCM_S32BE:
+            st->codec->codec_id = CODEC_ID_PCM_S32LE;
+            break;
+        default:
+            break;
+        }
+    }
+    return 0;
+}
+
+/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
+static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    if((uint64_t)atom.size > (1<<30))
+        return -1;
+    av_free(st->codec->extradata);
+    st->codec->extradata_size = atom.size + 8;
+    st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    if (st->codec->extradata) {
+        AV_WL32(st->codec->extradata + 4, atom.type);
+        get_buffer(pb, st->codec->extradata + 8, atom.size);
+    } else
+        url_fskip(pb, atom.size);
+    return 0;
+}
+
+static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+
+    if((uint64_t)atom.size > (1<<30))
+        return -1;
+
+    if (st->codec->codec_id == CODEC_ID_QDM2) {
+        // pass all frma atom to codec, needed at least for QDM2
+        av_free(st->codec->extradata);
+        st->codec->extradata_size = atom.size;
+        st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+
+        if (st->codec->extradata) {
+            get_buffer(pb, st->codec->extradata, atom.size);
+        } else
+            url_fskip(pb, atom.size);
+    } else if (atom.size > 8) { /* to read frma, esds atoms */
+        mov_read_default(c, pb, atom);
+    } else
+        url_fskip(pb, atom.size);
+    return 0;
+}
+
+static int mov_read_avcC(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+
+    if((uint64_t)atom.size > (1<<30))
+        return -1;
+
+    av_free(st->codec->extradata);
+
+    st->codec->extradata_size = atom.size;
+    st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+
+    if (st->codec->extradata) {
+        get_buffer(pb, st->codec->extradata, atom.size);
+    } else
+        url_fskip(pb, atom.size);
+
+    return 0;
+}
+
+static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    unsigned int i, entries;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+    entries = get_be32(pb);
+
+    if(entries >= UINT_MAX/sizeof(int64_t))
+        return -1;
+
+    sc->chunk_count = entries;
+    sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
+    if (!sc->chunk_offsets)
+        return -1;
+    if (atom.type == MKTAG('s', 't', 'c', 'o')) {
+        for(i=0; i<entries; i++) {
+            sc->chunk_offsets[i] = get_be32(pb);
+        }
+    } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
+        for(i=0; i<entries; i++) {
+            sc->chunk_offsets[i] = get_be64(pb);
+        }
+    } else
+        return -1;
+
+    return 0;
+}
+
+static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    int entries, frames_per_sample;
+    uint32_t format;
+    uint8_t codec_name[32];
+
+    /* for palette traversal */
+    int color_depth;
+    int color_start;
+    int color_count;
+    int color_end;
+    int color_index;
+    int color_dec;
+    int color_greyscale;
+    unsigned char *color_table;
+    int j;
+    unsigned char r, g, b;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+    entries = get_be32(pb);
+
+    while(entries--) { //Parsing Sample description table
+        enum CodecID id;
+        MOV_atom_t a = { 0, 0, 0 };
+        offset_t start_pos = url_ftell(pb);
+        int size = get_be32(pb); /* size */
+        format = get_le32(pb); /* data format */
+
+        get_be32(pb); /* reserved */
+        get_be16(pb); /* reserved */
+        get_be16(pb); /* index */
+
+        if (st->codec->codec_tag) {
+            /* multiple fourcc, just skip for now */
+            url_fskip(pb, size - (url_ftell(pb) - start_pos));
+            continue;
+        }
+
+        st->codec->codec_tag = format;
+        id = codec_get_id(mov_audio_tags, format);
+        if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
+            st->codec->codec_type = CODEC_TYPE_AUDIO;
+        } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
+                   format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */
+            id = codec_get_id(mov_video_tags, format);
+            if (id <= 0)
+                id = codec_get_id(codec_bmp_tags, format);
+            if (id > 0)
+                st->codec->codec_type = CODEC_TYPE_VIDEO;
+        }
+
+        dprintf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
+                size,
+                (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, (format >> 24) & 0xff,
+                st->codec->codec_type);
+
+        if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
+            st->codec->codec_id = id;
+            get_be16(pb); /* version */
+            get_be16(pb); /* revision level */
+            get_be32(pb); /* vendor */
+            get_be32(pb); /* temporal quality */
+            get_be32(pb); /* spacial quality */
+
+            st->codec->width = get_be16(pb); /* width */
+            st->codec->height = get_be16(pb); /* height */
+
+            get_be32(pb); /* horiz resolution */
+            get_be32(pb); /* vert resolution */
+            get_be32(pb); /* data size, always 0 */
+            frames_per_sample = get_be16(pb); /* frames per samples */
+#ifdef DEBUG
+            av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample);
+#endif
+            get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
+            if (codec_name[0] <= 31) {
+                memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
+                st->codec->codec_name[codec_name[0]] = 0;
+            }
+
+            st->codec->bits_per_sample = get_be16(pb); /* depth */
+            st->codec->color_table_id = get_be16(pb); /* colortable id */
+
+            /* figure out the palette situation */
+            color_depth = st->codec->bits_per_sample & 0x1F;
+            color_greyscale = st->codec->bits_per_sample & 0x20;
+
+            /* if the depth is 2, 4, or 8 bpp, file is palettized */
+            if ((color_depth == 2) || (color_depth == 4) ||
+                (color_depth == 8)) {
+
+                if (color_greyscale) {
+
+                    /* compute the greyscale palette */
+                    color_count = 1 << color_depth;
+                    color_index = 255;
+                    color_dec = 256 / (color_count - 1);
+                    for (j = 0; j < color_count; j++) {
+                        r = g = b = color_index;
+                        c->palette_control.palette[j] =
+                            (r << 16) | (g << 8) | (b);
+                        color_index -= color_dec;
+                        if (color_index < 0)
+                            color_index = 0;
+                    }
+
+                } else if (st->codec->color_table_id & 0x08) {
+
+                    /* if flag bit 3 is set, use the default palette */
+                    color_count = 1 << color_depth;
+                    if (color_depth == 2)
+                        color_table = ff_qt_default_palette_4;
+                    else if (color_depth == 4)
+                        color_table = ff_qt_default_palette_16;
+                    else
+                        color_table = ff_qt_default_palette_256;
+
+                    for (j = 0; j < color_count; j++) {
+                        r = color_table[j * 4 + 0];
+                        g = color_table[j * 4 + 1];
+                        b = color_table[j * 4 + 2];
+                        c->palette_control.palette[j] =
+                            (r << 16) | (g << 8) | (b);
+                    }
+
+                } else {
+
+                    /* load the palette from the file */
+                    color_start = get_be32(pb);
+                    color_count = get_be16(pb);
+                    color_end = get_be16(pb);
+                    for (j = color_start; j <= color_end; j++) {
+                        /* each R, G, or B component is 16 bits;
+                         * only use the top 8 bits; skip alpha bytes
+                         * up front */
+                        get_byte(pb);
+                        get_byte(pb);
+                        r = get_byte(pb);
+                        get_byte(pb);
+                        g = get_byte(pb);
+                        get_byte(pb);
+                        b = get_byte(pb);
+                        get_byte(pb);
+                        c->palette_control.palette[j] =
+                            (r << 16) | (g << 8) | (b);
+                    }
+                }
+
+                st->codec->palctrl = &c->palette_control;
+                st->codec->palctrl->palette_changed = 1;
+            } else
+                st->codec->palctrl = NULL;
+        } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
+            int bits_per_sample;
+            uint16_t version = get_be16(pb);
+
+            st->codec->codec_id = id;
+            get_be16(pb); /* revision level */
+            get_be32(pb); /* vendor */
+
+            st->codec->channels = get_be16(pb);             /* channel count */
+            dprintf("audio channels %d\n", st->codec->channels);
+            st->codec->bits_per_sample = get_be16(pb);      /* sample size */
+            /* do we need to force to 16 for AMR ? */
+
+            /* handle specific s8 codec */
+            get_be16(pb); /* compression id = 0*/
+            get_be16(pb); /* packet size = 0 */
+
+            st->codec->sample_rate = ((get_be32(pb) >> 16));
+
+            switch (st->codec->codec_id) {
+            case CODEC_ID_PCM_S8:
+            case CODEC_ID_PCM_U8:
+                if (st->codec->bits_per_sample == 16)
+                    st->codec->codec_id = CODEC_ID_PCM_S16BE;
+                break;
+            case CODEC_ID_PCM_S16LE:
+            case CODEC_ID_PCM_S16BE:
+                if (st->codec->bits_per_sample == 8)
+                    st->codec->codec_id = CODEC_ID_PCM_S8;
+                else if (st->codec->bits_per_sample == 24)
+                    st->codec->codec_id = CODEC_ID_PCM_S24BE;
+                break;
+            default:
+                break;
+            }
+
+            //Read QT version 1 fields. In version 0 theese dont exist
+            dprintf("version =%d, isom =%d\n",version,c->isom);
+            if(!c->isom) {
+                if(version==1) {
+                    sc->sample_size_v1.den = get_be32(pb); /* samples per packet */
+                    get_be32(pb); /* bytes per packet */
+                    sc->sample_size_v1.num = get_be32(pb); /* bytes per frame */
+                    get_be32(pb); /* bytes per sample */
+                } else if(version==2) {
+                    get_be32(pb); /* sizeof struct only */
+                    st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
+                    st->codec->channels = get_be32(pb);
+                    get_be32(pb); /* always 0x7F000000 */
+                    get_be32(pb); /* bits per channel if sound is uncompressed */
+                    get_be32(pb); /* lcpm format specific flag */
+                    get_be32(pb); /* bytes per audio packet if constant */
+                    get_be32(pb); /* lpcm frames per audio packet if constant */
+                }
+            }
+
+            bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
+            if (bits_per_sample) {
+                st->codec->bits_per_sample = bits_per_sample;
+                sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
+            }
+        } else {
+            /* other codec type, just skip (rtp, mp4s, tmcd ...) */
+            url_fskip(pb, size - (url_ftell(pb) - start_pos));
+        }
+        /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
+        a.size = size - (url_ftell(pb) - start_pos);
+        if (a.size > 8)
+            mov_read_default(c, pb, a);
+        else if (a.size > 0)
+            url_fskip(pb, a.size);
+    }
+
+    if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) {
+        st->codec->sample_rate= sc->time_scale;
+    }
+
+    /* special codec parameters handling */
+    switch (st->codec->codec_id) {
+#ifdef CONFIG_H261_DECODER
+    case CODEC_ID_H261:
+#endif
+#ifdef CONFIG_H263_DECODER
+    case CODEC_ID_H263:
+#endif
+#ifdef CONFIG_MPEG4_DECODER
+    case CODEC_ID_MPEG4:
+#endif
+        st->codec->width= 0; /* let decoder init width/height */
+        st->codec->height= 0;
+        break;
+#ifdef CONFIG_LIBFAAD
+    case CODEC_ID_AAC:
+#endif
+#ifdef CONFIG_VORBIS_DECODER
+    case CODEC_ID_VORBIS:
+#endif
+    case CODEC_ID_MP3ON4:
+        st->codec->sample_rate= 0; /* let decoder init parameters properly */
+        break;
+#ifdef CONFIG_DV_DEMUXER
+    case CODEC_ID_DVAUDIO:
+        c->dv_fctx = av_alloc_format_context();
+        c->dv_demux = dv_init_demux(c->dv_fctx);
+        if (!c->dv_demux) {
+            av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
+            return -1;
+        }
+        sc->dv_audio_container = 1;
+        st->codec->codec_id = CODEC_ID_PCM_S16LE;
+        break;
+#endif
+    /* no ifdef since parameters are always those */
+    case CODEC_ID_AMR_WB:
+        st->codec->sample_rate= 16000;
+        st->codec->channels= 1; /* really needed */
+        break;
+    case CODEC_ID_AMR_NB:
+        st->codec->sample_rate= 8000;
+        st->codec->channels= 1; /* really needed */
+        break;
+    case CODEC_ID_MP2:
+        st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
+        st->need_parsing = 1;
+        break;
+    default:
+        break;
+    }
+
+    return 0;
+}
+
+static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    unsigned int i, entries;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+    entries = get_be32(pb);
+
+    if(entries >= UINT_MAX / sizeof(MOV_sample_to_chunk_tbl))
+        return -1;
+
+#ifdef DEBUG
+av_log(NULL, AV_LOG_DEBUG, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
+#endif
+    sc->sample_to_chunk_sz = entries;
+    sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
+    if (!sc->sample_to_chunk)
+        return -1;
+    for(i=0; i<entries; i++) {
+        sc->sample_to_chunk[i].first = get_be32(pb);
+        sc->sample_to_chunk[i].count = get_be32(pb);
+        sc->sample_to_chunk[i].id = get_be32(pb);
+    }
+    return 0;
+}
+
+static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    unsigned int i, entries;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+    entries = get_be32(pb);
+
+    if(entries >= UINT_MAX / sizeof(long))
+        return -1;
+
+    sc->keyframe_count = entries;
+#ifdef DEBUG
+    av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %d\n", sc->keyframe_count);
+#endif
+    sc->keyframes = av_malloc(entries * sizeof(long));
+    if (!sc->keyframes)
+        return -1;
+    for(i=0; i<entries; i++) {
+        sc->keyframes[i] = get_be32(pb);
+#ifdef DEBUG
+/*        av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */
+#endif
+    }
+    return 0;
+}
+
+static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    unsigned int i, entries, sample_size;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+    sample_size = get_be32(pb);
+    if (!sc->sample_size) /* do not overwrite value computed in stsd */
+        sc->sample_size = sample_size;
+    entries = get_be32(pb);
+    if(entries >= UINT_MAX / sizeof(long))
+        return -1;
+
+    sc->sample_count = entries;
+    if (sample_size)
+        return 0;
+
+#ifdef DEBUG
+    av_log(NULL, AV_LOG_DEBUG, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count);
+#endif
+    sc->sample_sizes = av_malloc(entries * sizeof(long));
+    if (!sc->sample_sizes)
+        return -1;
+    for(i=0; i<entries; i++) {
+        sc->sample_sizes[i] = get_be32(pb);
+#ifdef DEBUG
+        av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]);
+#endif
+    }
+    return 0;
+}
+
+static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    unsigned int i, entries;
+    int64_t duration=0;
+    int64_t total_sample_count=0;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+    entries = get_be32(pb);
+    if(entries >= UINT_MAX / sizeof(Time2Sample))
+        return -1;
+
+    sc->stts_count = entries;
+    sc->stts_data = av_malloc(entries * sizeof(Time2Sample));
+
+#ifdef DEBUG
+av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
+#endif
+
+    sc->time_rate=0;
+
+    for(i=0; i<entries; i++) {
+        int sample_duration;
+        int sample_count;
+
+        sample_count=get_be32(pb);
+        sample_duration = get_be32(pb);
+        sc->stts_data[i].count= sample_count;
+        sc->stts_data[i].duration= sample_duration;
+
+        sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
+
+        dprintf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
+
+        duration+=(int64_t)sample_duration*sample_count;
+        total_sample_count+=sample_count;
+    }
+
+    st->nb_frames= total_sample_count;
+    if(duration)
+        st->duration= duration;
+    return 0;
+}
+
+static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+    unsigned int i, entries;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+    entries = get_be32(pb);
+    if(entries >= UINT_MAX / sizeof(Time2Sample))
+        return -1;
+
+    sc->ctts_count = entries;
+    sc->ctts_data = av_malloc(entries * sizeof(Time2Sample));
+
+    dprintf("track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
+
+    for(i=0; i<entries; i++) {
+        int count    =get_be32(pb);
+        int duration =get_be32(pb);
+
+        if (duration < 0) {
+            av_log(c->fc, AV_LOG_ERROR, "negative ctts, ignoring\n");
+            sc->ctts_count = 0;
+            url_fskip(pb, 8 * (entries - i - 1));
+            break;
+        }
+        sc->ctts_data[i].count   = count;
+        sc->ctts_data[i].duration= duration;
+
+        sc->time_rate= ff_gcd(sc->time_rate, duration);
+    }
+    return 0;
+}
+
+static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st;
+    MOVStreamContext *sc;
+
+    st = av_new_stream(c->fc, c->fc->nb_streams);
+    if (!st) return -2;
+    sc = av_mallocz(sizeof(MOVStreamContext));
+    if (!sc) {
+        av_free(st);
+        return -1;
+    }
+
+    st->priv_data = sc;
+    st->codec->codec_type = CODEC_TYPE_DATA;
+    st->start_time = 0; /* XXX: check */
+    c->streams[c->fc->nb_streams-1] = sc;
+
+    return mov_read_default(c, pb, atom);
+}
+
+static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    int version = get_byte(pb);
+
+    get_byte(pb); get_byte(pb);
+    get_byte(pb); /* flags */
+    /*
+    MOV_TRACK_ENABLED 0x0001
+    MOV_TRACK_IN_MOVIE 0x0002
+    MOV_TRACK_IN_PREVIEW 0x0004
+    MOV_TRACK_IN_POSTER 0x0008
+    */
+
+    if (version == 1) {
+        get_be64(pb);
+        get_be64(pb);
+    } else {
+        get_be32(pb); /* creation time */
+        get_be32(pb); /* modification time */
+    }
+    st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
+    get_be32(pb); /* reserved */
+    st->start_time = 0; /* check */
+    (version == 1) ? get_be64(pb) : get_be32(pb); /* highlevel (considering edits) duration in movie timebase */
+    get_be32(pb); /* reserved */
+    get_be32(pb); /* reserved */
+
+    get_be16(pb); /* layer */
+    get_be16(pb); /* alternate group */
+    get_be16(pb); /* volume */
+    get_be16(pb); /* reserved */
+
+    url_fskip(pb, 36); /* display matrix */
+
+    /* those are fixed-point */
+    get_be32(pb); /* track width */
+    get_be32(pb); /* track height */
+
+    return 0;
+}
+
+/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
+/* like the files created with Adobe Premiere 5.0, for samples see */
+/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
+static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    int err;
+
+    if (atom.size < 8)
+        return 0; /* continue */
+    if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
+        url_fskip(pb, atom.size - 4);
+        return 0;
+    }
+    atom.type = get_le32(pb);
+    atom.offset += 8;
+    atom.size -= 8;
+    if (atom.type != MKTAG('m', 'd', 'a', 't')) {
+        url_fskip(pb, atom.size);
+        return 0;
+    }
+    err = mov_read_mdat(c, pb, atom);
+    return err;
+}
+
+static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+#ifdef CONFIG_ZLIB
+    ByteIOContext ctx;
+    uint8_t *cmov_data;
+    uint8_t *moov_data; /* uncompressed data */
+    long cmov_len, moov_len;
+    int ret;
+
+    get_be32(pb); /* dcom atom */
+    if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
+        return -1;
+    if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
+        av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
+        return -1;
+    }
+    get_be32(pb); /* cmvd atom */
+    if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
+        return -1;
+    moov_len = get_be32(pb); /* uncompressed size */
+    cmov_len = atom.size - 6 * 4;
+
+    cmov_data = av_malloc(cmov_len);
+    if (!cmov_data)
+        return -1;
+    moov_data = av_malloc(moov_len);
+    if (!moov_data) {
+        av_free(cmov_data);
+        return -1;
+    }
+    get_buffer(pb, cmov_data, cmov_len);
+    if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
+        return -1;
+    if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
+        return -1;
+    atom.type = MKTAG( 'm', 'o', 'o', 'v' );
+    atom.offset = 0;
+    atom.size = moov_len;
+#ifdef DEBUG
+//    { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
+#endif
+    ret = mov_read_default(c, &ctx, atom);
+    av_free(moov_data);
+    av_free(cmov_data);
+    return ret;
+#else
+    av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
+    return -1;
+#endif
+}
+
+/* edit list atom */
+static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+    int i, edit_count;
+
+    get_byte(pb); /* version */
+    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+    edit_count= c->streams[c->fc->nb_streams-1]->edit_count = get_be32(pb);     /* entries */
+
+    for(i=0; i<edit_count; i++){
+        get_be32(pb); /* Track duration */
+        get_be32(pb); /* Media time */
+        get_be32(pb); /* Media rate */
+    }
+    dprintf("track[%i].edit_count = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->edit_count);
+    return 0;
+}
+
+static const MOVParseTableEntry mov_default_parse_table[] = {
+/* mp4 atoms */
+{ MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
+{ MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */
+{ MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
+{ MKTAG( 'e', 'l', 's', 't' ), mov_read_elst },
+{ MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda },
+{ MKTAG( 'f', 'i', 'e', 'l' ), mov_read_extradata },
+{ MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp },
+{ MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
+{ MKTAG( 'j', 'p', '2', 'h' ), mov_read_extradata },
+{ MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
+{ MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
+{ MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
+{ MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
+{ MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
+{ MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
+{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
+{ MKTAG( 'a', 'l', 'a', 'c' ), mov_read_extradata }, /* alac specific atom */
+{ MKTAG( 'a', 'v', 'c', 'C' ), mov_read_avcC },
+{ MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
+{ MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
+{ MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
+{ MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
+{ MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
+{ MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
+{ MKTAG( 's', 't', 't', 's' ), mov_read_stts },
+{ MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
+{ MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
+{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave },
+{ MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
+{ MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
+{ MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
+{ MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
+{ 0L, NULL }
+};
+
+static void mov_free_stream_context(MOVStreamContext *sc)
+{
+    if(sc) {
+        av_freep(&sc->ctts_data);
+        av_freep(&sc);
+    }
+}
+
+/* XXX: is it sufficient ? */
+static int mov_probe(AVProbeData *p)
+{
+    unsigned int offset;
+    uint32_t tag;
+    int score = 0;
+
+    /* check file header */
+    if (p->buf_size <= 12)
+        return 0;
+    offset = 0;
+    for(;;) {
+        /* ignore invalid offset */
+        if ((offset + 8) > (unsigned int)p->buf_size)
+            return score;
+        tag = AV_RL32(p->buf + offset + 4);
+        switch(tag) {
+        /* check for obvious tags */
+        case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */
+        case MKTAG( 'm', 'o', 'o', 'v' ):
+        case MKTAG( 'm', 'd', 'a', 't' ):
+        case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
+        case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
+            return AVPROBE_SCORE_MAX;
+        /* those are more common words, so rate then a bit less */
+        case MKTAG( 'w', 'i', 'd', 'e' ):
+        case MKTAG( 'f', 'r', 'e', 'e' ):
+        case MKTAG( 'j', 'u', 'n', 'k' ):
+        case MKTAG( 'p', 'i', 'c', 't' ):
+            return AVPROBE_SCORE_MAX - 5;
+        case MKTAG( 'f', 't', 'y', 'p' ):
+        case MKTAG( 's', 'k', 'i', 'p' ):
+        case MKTAG( 'u', 'u', 'i', 'd' ):
+            offset = AV_RB32(p->buf+offset) + offset;
+            /* if we only find those cause probedata is too small at least rate them */
+            score = AVPROBE_SCORE_MAX - 50;
+            break;
+        default:
+            /* unrecognized tag */
+            return score;
+        }
+    }
+    return score;
+}
+
+static void mov_build_index(MOVContext *mov, AVStream *st)
+{
+    MOVStreamContext *sc = st->priv_data;
+    offset_t current_offset;
+    int64_t current_dts = 0;
+    unsigned int stts_index = 0;
+    unsigned int stsc_index = 0;
+    unsigned int stss_index = 0;
+    unsigned int i, j, k;
+
+    if (sc->sample_sizes || st->codec->codec_type == CODEC_TYPE_VIDEO || sc->dv_audio_container) {
+        unsigned int current_sample = 0;
+        unsigned int stts_sample = 0;
+        unsigned int keyframe, sample_size;
+        unsigned int distance = 0;
+
+        st->nb_frames = sc->sample_count;
+        for (i = 0; i < sc->chunk_count; i++) {
+            current_offset = sc->chunk_offsets[i];
+            if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
+                stsc_index++;
+            for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
+                if (current_sample >= sc->sample_count) {
+                    av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
+                    goto out;
+                }
+                keyframe = !sc->keyframe_count || current_sample + 1 == sc->keyframes[stss_index];
+                if (keyframe) {
+                    distance = 0;
+                    if (stss_index + 1 < sc->keyframe_count)
+                        stss_index++;
+                }
+                sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
+                dprintf("AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", size %d, distance %d, keyframe %d\n",
+                        st->index, current_sample, current_offset, current_dts, sample_size, distance, keyframe);
+                av_add_index_entry(st, current_offset, current_dts, sample_size, distance, keyframe ? AVINDEX_KEYFRAME : 0);
+                current_offset += sample_size;
+                assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
+                current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
+                distance++;
+                stts_sample++;
+                current_sample++;
+                if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
+                    stts_sample = 0;
+                    stts_index++;
+                }
+            }
+        }
+    } else { /* read whole chunk */
+        unsigned int chunk_samples, chunk_size, chunk_duration;
+
+        for (i = 0; i < sc->chunk_count; i++) {
+            current_offset = sc->chunk_offsets[i];
+            if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
+                stsc_index++;
+            chunk_samples = sc->sample_to_chunk[stsc_index].count;
+            /* get chunk size */
+            if (sc->sample_size > 1 || st->codec->codec_id == CODEC_ID_PCM_U8 || st->codec->codec_id == CODEC_ID_PCM_S8)
+                chunk_size = chunk_samples * sc->sample_size;
+            else if (sc->sample_size_v1.den > 0 && (chunk_samples * sc->sample_size_v1.num % sc->sample_size_v1.den == 0))
+                chunk_size = chunk_samples * sc->sample_size_v1.num / sc->sample_size_v1.den;
+            else { /* workaround to find nearest next chunk offset */
+                chunk_size = INT_MAX;
+                for (j = 0; j < mov->total_streams; j++) {
+                    MOVStreamContext *msc = mov->streams[j];
+
+                    for (k = msc->next_chunk; k < msc->chunk_count; k++) {
+                        if (msc->chunk_offsets[k] > current_offset && msc->chunk_offsets[k] - current_offset < chunk_size) {
+                            chunk_size = msc->chunk_offsets[k] - current_offset;
+                            msc->next_chunk = k;
+                            break;
+                        }
+                    }
+                }
+                /* check for last chunk */
+                if (chunk_size == INT_MAX)
+                    for (j = 0; j < mov->mdat_count; j++) {
+                        dprintf("mdat %d, offset %"PRIx64", size %"PRId64", current offset %"PRIx64"\n",
+                                j, mov->mdat_list[j].offset, mov->mdat_list[j].size, current_offset);
+                        if (mov->mdat_list[j].offset <= current_offset && mov->mdat_list[j].offset + mov->mdat_list[j].size > current_offset)
+                            chunk_size = mov->mdat_list[j].offset + mov->mdat_list[j].size - current_offset;
+                    }
+                assert(chunk_size != INT_MAX);
+                for (j = 0; j < mov->total_streams; j++) {
+                    mov->streams[j]->next_chunk = 0;
+                }
+            }
+            av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
+            /* get chunk duration */
+            chunk_duration = 0;
+            while (chunk_samples > 0) {
+                if (chunk_samples < sc->stts_data[stts_index].count) {
+                    chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
+                    sc->stts_data[stts_index].count -= chunk_samples;
+                    break;
+                } else {
+                    chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
+                    chunk_samples -= sc->stts_data[stts_index].count;
+                    if (stts_index + 1 < sc->stts_count) {
+                        stts_index++;
+                    }
+                }
+            }
+            dprintf("AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", size %d, duration %d\n",
+                    st->index, i, current_offset, current_dts, chunk_size, chunk_duration);
+            assert(chunk_duration % sc->time_rate == 0);
+            current_dts += chunk_duration / sc->time_rate;
+        }
+    }
+ out:
+    /* adjust sample count to avindex entries */
+    sc->sample_count = st->nb_index_entries;
+}
+
+static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
+{
+    MOVContext *mov = (MOVContext *) s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    int i, err;
+    MOV_atom_t atom = { 0, 0, 0 };
+
+    mov->fc = s;
+    mov->parse_table = mov_default_parse_table;
+
+    if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
+        atom.size = url_fsize(pb);
+    else
+        atom.size = 0x7FFFFFFFFFFFFFFFLL;
+
+    /* check MOV header */
+    err = mov_read_default(mov, pb, atom);
+    if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
+        av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%"PRId64"\n",
+                err, mov->found_moov, mov->found_mdat, url_ftell(pb));
+        return -1;
+    }
+    dprintf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
+
+    /* some cleanup : make sure we are on the mdat atom */
+    if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
+        url_fseek(pb, mov->mdat_offset, SEEK_SET);
+
+    mov->total_streams = s->nb_streams;
+
+    for(i=0; i<mov->total_streams; i++) {
+        MOVStreamContext *sc = mov->streams[i];
+        /* sanity checks */
+        if(!sc->stts_count || !sc->chunk_count || !sc->sample_to_chunk_sz ||
+           (!sc->sample_size && !sc->sample_count)){
+            av_log(s, AV_LOG_ERROR, "missing mandatory atoms, broken header\n");
+            return -1;
+        }
+        if(!sc->time_rate)
+            sc->time_rate=1;
+        if(!sc->time_scale)
+            sc->time_scale= mov->time_scale;
+        av_set_pts_info(s->streams[i], 64, sc->time_rate, sc->time_scale);
+
+        if(s->streams[i]->duration != AV_NOPTS_VALUE){
+            assert(s->streams[i]->duration % sc->time_rate == 0);
+            s->streams[i]->duration /= sc->time_rate;
+        }
+        sc->ffindex = i;
+        mov_build_index(mov, s->streams[i]);
+    }
+
+    for(i=0; i<mov->total_streams; i++) {
+        /* dont need those anymore */
+        av_freep(&mov->streams[i]->chunk_offsets);
+        av_freep(&mov->streams[i]->sample_to_chunk);
+        av_freep(&mov->streams[i]->sample_sizes);
+        av_freep(&mov->streams[i]->keyframes);
+        av_freep(&mov->streams[i]->stts_data);
+    }
+    av_freep(&mov->mdat_list);
+    return 0;
+}
+
+static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    MOVContext *mov = s->priv_data;
+    MOVStreamContext *sc = 0;
+    AVIndexEntry *sample = 0;
+    int64_t best_dts = INT64_MAX;
+    int i;
+
+    for (i = 0; i < mov->total_streams; i++) {
+        MOVStreamContext *msc = mov->streams[i];
+
+        if (s->streams[i]->discard != AVDISCARD_ALL && msc->current_sample < msc->sample_count) {
+            AVIndexEntry *current_sample = &s->streams[i]->index_entries[msc->current_sample];
+            int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate, AV_TIME_BASE, msc->time_scale);
+
+            dprintf("stream %d, sample %ld, dts %"PRId64"\n", i, msc->current_sample, dts);
+            if (dts < best_dts) {
+                sample = current_sample;
+                best_dts = dts;
+                sc = msc;
+            }
+        }
+    }
+    if (!sample)
+        return -1;
+    /* must be done just before reading, to avoid infinite loop on sample */
+    sc->current_sample++;
+    if (sample->pos >= url_fsize(&s->pb)) {
+        av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n", sc->ffindex, sample->pos);
+        return -1;
+    }
+#ifdef CONFIG_DV_DEMUXER
+    if (sc->dv_audio_container) {
+        dv_get_packet(mov->dv_demux, pkt);
+        dprintf("dv audio pkt size %d\n", pkt->size);
+    } else {
+#endif
+        url_fseek(&s->pb, sample->pos, SEEK_SET);
+        av_get_packet(&s->pb, pkt, sample->size);
+#ifdef CONFIG_DV_DEMUXER
+        if (mov->dv_demux) {
+            void *pkt_destruct_func = pkt->destruct;
+            dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
+            pkt->destruct = pkt_destruct_func;
+        }
+    }
+#endif
+    pkt->stream_index = sc->ffindex;
+    pkt->dts = sample->timestamp;
+    if (sc->ctts_data) {
+        assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
+        pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
+        /* update ctts context */
+        sc->sample_to_ctime_sample++;
+        if (sc->sample_to_ctime_index < sc->ctts_count && sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
+            sc->sample_to_ctime_index++;
+            sc->sample_to_ctime_sample = 0;
+        }
+    } else {
+        pkt->pts = pkt->dts;
+    }
+    pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
+    pkt->pos = sample->pos;
+    dprintf("stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n", pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
+    return 0;
+}
+
+static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
+{
+    MOVStreamContext *sc = st->priv_data;
+    int sample, time_sample;
+    int i;
+
+    sample = av_index_search_timestamp(st, timestamp, flags);
+    dprintf("stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
+    if (sample < 0) /* not sure what to do */
+        return -1;
+    sc->current_sample = sample;
+    dprintf("stream %d, found sample %ld\n", st->index, sc->current_sample);
+    /* adjust ctts index */
+    if (sc->ctts_data) {
+        time_sample = 0;
+        for (i = 0; i < sc->ctts_count; i++) {
+            time_sample += sc->ctts_data[i].count;
+            if (time_sample >= sc->current_sample) {
+                sc->sample_to_ctime_index = i;
+                sc->sample_to_ctime_sample = time_sample - sc->current_sample;
+                break;
+            }
+        }
+    }
+    return sample;
+}
+
+static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
+{
+    AVStream *st;
+    int64_t seek_timestamp, timestamp;
+    int sample;
+    int i;
+
+    if (stream_index >= s->nb_streams)
+        return -1;
+
+    st = s->streams[stream_index];
+    sample = mov_seek_stream(st, sample_time, flags);
+    if (sample < 0)
+        return -1;
+
+    /* adjust seek timestamp to found sample timestamp */
+    seek_timestamp = st->index_entries[sample].timestamp;
+
+    for (i = 0; i < s->nb_streams; i++) {
+        st = s->streams[i];
+        if (stream_index == i || st->discard == AVDISCARD_ALL)
+            continue;
+
+        timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
+        mov_seek_stream(st, timestamp, flags);
+    }
+    return 0;
+}
+
+static int mov_read_close(AVFormatContext *s)
+{
+    int i;
+    MOVContext *mov = (MOVContext *) s->priv_data;
+    for(i=0; i<mov->total_streams; i++)
+        mov_free_stream_context(mov->streams[i]);
+    /* free color tabs */
+    for(i=0; i<mov->ctab_size; i++)
+        av_freep(&mov->ctab[i]);
+    if(mov->dv_demux){
+        for(i=0; i<mov->dv_fctx->nb_streams; i++){
+            av_freep(&mov->dv_fctx->streams[i]->codec);
+            av_freep(&mov->dv_fctx->streams[i]);
+        }
+        av_freep(&mov->dv_fctx);
+        av_freep(&mov->dv_demux);
+    }
+    av_freep(&mov->ctab);
+    return 0;
+}
+
+AVInputFormat mov_demuxer = {
+    "mov,mp4,m4a,3gp,3g2,mj2",
+    "QuickTime/MPEG4/Motion JPEG 2000 format",
+    sizeof(MOVContext),
+    mov_probe,
+    mov_read_header,
+    mov_read_packet,
+    mov_read_close,
+    mov_read_seek,
+};