We are currently experiencing downtime impacting viewing & cloning the Mesa repo, and some GitLab pages returning 503. Please see #freedesktop on IRC for more updates.

qtdemux.c 120 KB
Newer Older
Artyom Baginski's avatar
Artyom Baginski committed
1 2
/* GStreamer
 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3
 * Copyright (C) <2003> David A. Schleef <ds@schleef.org>
4
 * Copyright (C) <2006> Wim Taymans <wim@fluendo.com>
Artyom Baginski's avatar
Artyom Baginski committed
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library 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.
 */

22 23 24
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
25
#include "qtdemux.h"
26

27
#include <stdlib.h>
Artyom Baginski's avatar
Artyom Baginski committed
28
#include <string.h>
29 30
#include <zlib.h>

31 32
GST_DEBUG_CATEGORY_EXTERN (qtdemux_debug);
#define GST_CAT_DEFAULT qtdemux_debug
33

34
/* temporary hack */
35
#define gst_util_dump_mem(a,b)  /* */
36

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
37 38 39
#define QTDEMUX_GUINT32_GET(a)  (GST_READ_UINT32_BE(a))
#define QTDEMUX_GUINT24_GET(a)  (GST_READ_UINT32_BE(a) >> 8)
#define QTDEMUX_GUINT16_GET(a)  (GST_READ_UINT16_BE(a))
40
#define QTDEMUX_GUINT8_GET(a) (*(guint8 *)(a))
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
41 42 43
#define QTDEMUX_FP32_GET(a)     ((GST_READ_UINT32_BE(a))/65536.0)
#define QTDEMUX_FP16_GET(a)     ((GST_READ_UINT16_BE(a))/256.0)
#define QTDEMUX_FOURCC_GET(a)   (GST_READ_UINT32_LE(a))
44 45

#define QTDEMUX_GUINT64_GET(a) ((((guint64)QTDEMUX_GUINT32_GET(a))<<32)|QTDEMUX_GUINT32_GET(((void *)a)+4))
Artyom Baginski's avatar
Artyom Baginski committed
46

47 48 49
typedef struct _QtNode QtNode;
typedef struct _QtNodeType QtNodeType;
typedef struct _QtDemuxSample QtDemuxSample;
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
50

51 52
//typedef struct _QtDemuxStream QtDemuxStream;

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
53 54
struct _QtNode
{
55 56
  guint32 type;
  gpointer data;
57
  gint len;
58 59
};

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
60 61
struct _QtNodeType
{
62
  guint32 fourcc;
63 64
  gchar *name;
  gint flags;
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
65
  void (*dump) (GstQTDemux * qtdemux, void *buffer, int depth);
66 67
};

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
68 69
struct _QtDemuxSample
{
70 71 72
  gint sample_index;
  gint chunk;
  gint size;
73
  guint64 offset;
74 75
  guint64 timestamp;            /* In GstClockTime */
  guint32 duration;             /* in stream->timescale units */
76
  gboolean keyframe;            /* TRUE when this packet is a keyframe */
77 78
};

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
79 80
struct _QtDemuxStream
{
81 82
  guint32 subtype;
  GstCaps *caps;
83
  guint32 fourcc;
84
  GstPad *pad;
85
  gint n_samples;
86
  QtDemuxSample *samples;
87
  gint timescale;
88
  gboolean all_keyframe;        /* TRUE when all packets are keyframes (no stss) */
89

90
  gint sample_index;
91

92 93
  gint width;
  gint height;
94 95 96
  /* Numerator/denominator framerate */
  gint fps_n;
  gint fps_d;
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
97

98 99
  gdouble rate;
  gint n_channels;
100
  guint bytes_per_frame;
101
  guint compression;
102
  guint samples_per_packet;
103 104
  guint16 bits_per_sample;
  guint16 color_table_id;
105 106 107

  /* when a discontinuity is pending */
  gboolean discont;
108 109
};

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
110 111
enum QtDemuxState
{
112 113 114
  QTDEMUX_STATE_INITIAL,        /* Initial state (haven't got the header yet) */
  QTDEMUX_STATE_HEADER,         /* Parsing the header */
  QTDEMUX_STATE_MOVIE,          /* Parsing/Playing the media data */
115
  QTDEMUX_STATE_BUFFER_MDAT     /* Buffering the mdat atom */
116 117
};

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
118 119
static GNode *qtdemux_tree_get_child_by_type (GNode * node, guint32 fourcc);
static GNode *qtdemux_tree_get_sibling_by_type (GNode * node, guint32 fourcc);
120

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
121
static GstElementDetails gst_qtdemux_details = {
122 123 124
  "QuickTime Demuxer",
  "Codec/Demuxer",
  "Demultiplex a QuickTime file into audio and video streams",
125
  "David Schleef <ds@schleef.org>"
Artyom Baginski's avatar
Artyom Baginski committed
126 127
};

David Schleef's avatar
David Schleef committed
128
static GstStaticPadTemplate gst_qtdemux_sink_template =
129
    GST_STATIC_PAD_TEMPLATE ("sink",
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
130
    GST_PAD_SINK,
131
    GST_PAD_ALWAYS,
132
    GST_STATIC_CAPS ("video/quicktime; audio/x-m4a; application/x-3gp")
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
133
    );
David Schleef's avatar
David Schleef committed
134 135

static GstStaticPadTemplate gst_qtdemux_videosrc_template =
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
136 137 138 139
GST_STATIC_PAD_TEMPLATE ("audio_%02d",
    GST_PAD_SRC,
    GST_PAD_SOMETIMES,
    GST_STATIC_CAPS_ANY);
David Schleef's avatar
David Schleef committed
140 141

static GstStaticPadTemplate gst_qtdemux_audiosrc_template =
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
142 143 144 145
GST_STATIC_PAD_TEMPLATE ("video_%02d",
    GST_PAD_SRC,
    GST_PAD_SOMETIMES,
    GST_STATIC_CAPS_ANY);
Artyom Baginski's avatar
Artyom Baginski committed
146

147
static GstElementClass *parent_class = NULL;
Artyom Baginski's avatar
Artyom Baginski committed
148

149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236
/* we could generate these programmatically, but the generation code
 * is only a few lines shorter than the tables, and much uglier */
static const guint32 ff_qt_default_palette_256[256] = {
  0xFFFFFF, 0xFFFFCC, 0xFFFF99, 0xFFFF66, 0xFFFF33, 0xFFFF00,
  0xFFCCFF, 0xFFCCCC, 0xFFCC99, 0xFFCC66, 0xFFCC33, 0xFFCC00,
  0xFF99FF, 0xFF99CC, 0xFF9999, 0xFF9966, 0xFF9933, 0xFF9900,
  0xFF66FF, 0xFF66CC, 0xFF6699, 0xFF6666, 0xFF6633, 0xFF6600,
  0xFF33FF, 0xFF33CC, 0xFF3399, 0xFF3366, 0xFF3333, 0xFF3300,
  0xFF00FF, 0xFF00CC, 0xFF0099, 0xFF0066, 0xFF0033, 0xFF0000,
  0xCCFFFF, 0xCCFFCC, 0xCCFF99, 0xCCFF66, 0xCCFF33, 0xCCFF00,
  0xCCCCFF, 0xCCCCCC, 0xCCCC99, 0xCCCC66, 0xCCCC33, 0xCCCC00,
  0xCC99FF, 0xCC99CC, 0xCC9999, 0xCC9966, 0xCC9933, 0xCC9900,
  0xCC66FF, 0xCC66CC, 0xCC6699, 0xCC6666, 0xCC6633, 0xCC6600,
  0xCC33FF, 0xCC33CC, 0xCC3399, 0xCC3366, 0xCC3333, 0xCC3300,
  0xCC00FF, 0xCC00CC, 0xCC0099, 0xCC0066, 0xCC0033, 0xCC0000,
  0x99FFFF, 0x99FFCC, 0x99FF99, 0x99FF66, 0x99FF33, 0x99FF00,
  0x99CCFF, 0x99CCCC, 0x99CC99, 0x99CC66, 0x99CC33, 0x99CC00,
  0x9999FF, 0x9999CC, 0x999999, 0x999966, 0x999933, 0x999900,
  0x9966FF, 0x9966CC, 0x996699, 0x996666, 0x996633, 0x996600,
  0x9933FF, 0x9933CC, 0x993399, 0x993366, 0x993333, 0x993300,
  0x9900FF, 0x9900CC, 0x990099, 0x990066, 0x990033, 0x990000,
  0x66FFFF, 0x66FFCC, 0x66FF99, 0x66FF66, 0x66FF33, 0x66FF00,
  0x66CCFF, 0x66CCCC, 0x66CC99, 0x66CC66, 0x66CC33, 0x66CC00,
  0x6699FF, 0x6699CC, 0x669999, 0x669966, 0x669933, 0x669900,
  0x6666FF, 0x6666CC, 0x666699, 0x666666, 0x666633, 0x666600,
  0x6633FF, 0x6633CC, 0x663399, 0x663366, 0x663333, 0x663300,
  0x6600FF, 0x6600CC, 0x660099, 0x660066, 0x660033, 0x660000,
  0x33FFFF, 0x33FFCC, 0x33FF99, 0x33FF66, 0x33FF33, 0x33FF00,
  0x33CCFF, 0x33CCCC, 0x33CC99, 0x33CC66, 0x33CC33, 0x33CC00,
  0x3399FF, 0x3399CC, 0x339999, 0x339966, 0x339933, 0x339900,
  0x3366FF, 0x3366CC, 0x336699, 0x336666, 0x336633, 0x336600,
  0x3333FF, 0x3333CC, 0x333399, 0x333366, 0x333333, 0x333300,
  0x3300FF, 0x3300CC, 0x330099, 0x330066, 0x330033, 0x330000,
  0x00FFFF, 0x00FFCC, 0x00FF99, 0x00FF66, 0x00FF33, 0x00FF00,
  0x00CCFF, 0x00CCCC, 0x00CC99, 0x00CC66, 0x00CC33, 0x00CC00,
  0x0099FF, 0x0099CC, 0x009999, 0x009966, 0x009933, 0x009900,
  0x0066FF, 0x0066CC, 0x006699, 0x006666, 0x006633, 0x006600,
  0x0033FF, 0x0033CC, 0x003399, 0x003366, 0x003333, 0x003300,
  0x0000FF, 0x0000CC, 0x000099, 0x000066, 0x000033, 0xEE0000,
  0xDD0000, 0xBB0000, 0xAA0000, 0x880000, 0x770000, 0x550000,
  0x440000, 0x220000, 0x110000, 0x00EE00, 0x00DD00, 0x00BB00,
  0x00AA00, 0x008800, 0x007700, 0x005500, 0x004400, 0x002200,
  0x001100, 0x0000EE, 0x0000DD, 0x0000BB, 0x0000AA, 0x000088,
  0x000077, 0x000055, 0x000044, 0x000022, 0x000011, 0xEEEEEE,
  0xDDDDDD, 0xBBBBBB, 0xAAAAAA, 0x888888, 0x777777, 0x555555,
  0x444444, 0x222222, 0x111111, 0x000000
};

static const guint32 ff_qt_grayscale_palette_256[256] = {
  0xffffff, 0xfefefe, 0xfdfdfd, 0xfcfcfc, 0xfbfbfb, 0xfafafa, 0xf9f9f9,
  0xf8f8f8, 0xf7f7f7, 0xf6f6f6, 0xf5f5f5, 0xf4f4f4, 0xf3f3f3, 0xf2f2f2,
  0xf1f1f1, 0xf0f0f0, 0xefefef, 0xeeeeee, 0xededed, 0xececec, 0xebebeb,
  0xeaeaea, 0xe9e9e9, 0xe8e8e8, 0xe7e7e7, 0xe6e6e6, 0xe5e5e5, 0xe4e4e4,
  0xe3e3e3, 0xe2e2e2, 0xe1e1e1, 0xe0e0e0, 0xdfdfdf, 0xdedede, 0xdddddd,
  0xdcdcdc, 0xdbdbdb, 0xdadada, 0xd9d9d9, 0xd8d8d8, 0xd7d7d7, 0xd6d6d6,
  0xd5d5d5, 0xd4d4d4, 0xd3d3d3, 0xd2d2d2, 0xd1d1d1, 0xd0d0d0, 0xcfcfcf,
  0xcecece, 0xcdcdcd, 0xcccccc, 0xcbcbcb, 0xcacaca, 0xc9c9c9, 0xc8c8c8,
  0xc7c7c7, 0xc6c6c6, 0xc5c5c5, 0xc4c4c4, 0xc3c3c3, 0xc2c2c2, 0xc1c1c1,
  0xc0c0c0, 0xbfbfbf, 0xbebebe, 0xbdbdbd, 0xbcbcbc, 0xbbbbbb, 0xbababa,
  0xb9b9b9, 0xb8b8b8, 0xb7b7b7, 0xb6b6b6, 0xb5b5b5, 0xb4b4b4, 0xb3b3b3,
  0xb2b2b2, 0xb1b1b1, 0xb0b0b0, 0xafafaf, 0xaeaeae, 0xadadad, 0xacacac,
  0xababab, 0xaaaaaa, 0xa9a9a9, 0xa8a8a8, 0xa7a7a7, 0xa6a6a6, 0xa5a5a5,
  0xa4a4a4, 0xa3a3a3, 0xa2a2a2, 0xa1a1a1, 0xa0a0a0, 0x9f9f9f, 0x9e9e9e,
  0x9d9d9d, 0x9c9c9c, 0x9b9b9b, 0x9a9a9a, 0x999999, 0x989898, 0x979797,
  0x969696, 0x959595, 0x949494, 0x939393, 0x929292, 0x919191, 0x909090,
  0x8f8f8f, 0x8e8e8e, 0x8d8d8d, 0x8c8c8c, 0x8b8b8b, 0x8a8a8a, 0x898989,
  0x888888, 0x878787, 0x868686, 0x858585, 0x848484, 0x838383, 0x828282,
  0x818181, 0x808080, 0x7f7f7f, 0x7e7e7e, 0x7d7d7d, 0x7c7c7c, 0x7b7b7b,
  0x7a7a7a, 0x797979, 0x787878, 0x777777, 0x767676, 0x757575, 0x747474,
  0x737373, 0x727272, 0x717171, 0x707070, 0x6f6f6f, 0x6e6e6e, 0x6d6d6d,
  0x6c6c6c, 0x6b6b6b, 0x6a6a6a, 0x696969, 0x686868, 0x676767, 0x666666,
  0x656565, 0x646464, 0x636363, 0x626262, 0x616161, 0x606060, 0x5f5f5f,
  0x5e5e5e, 0x5d5d5d, 0x5c5c5c, 0x5b5b5b, 0x5a5a5a, 0x595959, 0x585858,
  0x575757, 0x565656, 0x555555, 0x545454, 0x535353, 0x525252, 0x515151,
  0x505050, 0x4f4f4f, 0x4e4e4e, 0x4d4d4d, 0x4c4c4c, 0x4b4b4b, 0x4a4a4a,
  0x494949, 0x484848, 0x474747, 0x464646, 0x454545, 0x444444, 0x434343,
  0x424242, 0x414141, 0x404040, 0x3f3f3f, 0x3e3e3e, 0x3d3d3d, 0x3c3c3c,
  0x3b3b3b, 0x3a3a3a, 0x393939, 0x383838, 0x373737, 0x363636, 0x353535,
  0x343434, 0x333333, 0x323232, 0x313131, 0x303030, 0x2f2f2f, 0x2e2e2e,
  0x2d2d2d, 0x2c2c2c, 0x2b2b2b, 0x2a2a2a, 0x292929, 0x282828, 0x272727,
  0x262626, 0x252525, 0x242424, 0x232323, 0x222222, 0x212121, 0x202020,
  0x1f1f1f, 0x1e1e1e, 0x1d1d1d, 0x1c1c1c, 0x1b1b1b, 0x1a1a1a, 0x191919,
  0x181818, 0x171717, 0x161616, 0x151515, 0x141414, 0x131313, 0x121212,
  0x111111, 0x101010, 0x0f0f0f, 0x0e0e0e, 0x0d0d0d, 0x0c0c0c, 0x0b0b0b,
  0x0a0a0a, 0x090909, 0x080808, 0x070707, 0x060606, 0x050505, 0x040404,
  0x030303, 0x020202, 0x010101, 0x000000
};

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
237 238 239
static void gst_qtdemux_class_init (GstQTDemuxClass * klass);
static void gst_qtdemux_base_init (GstQTDemuxClass * klass);
static void gst_qtdemux_init (GstQTDemux * quicktime_demux);
240
static void gst_qtdemux_dispose (GObject * object);
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
241 242
static GstStateChangeReturn gst_qtdemux_change_state (GstElement * element,
    GstStateChange transition);
243
static void gst_qtdemux_loop (GstPad * pad);
244
static GstFlowReturn gst_qtdemux_chain (GstPad * sinkpad, GstBuffer * inbuf);
245 246
static gboolean qtdemux_sink_activate (GstPad * sinkpad);
static gboolean qtdemux_sink_activate_pull (GstPad * sinkpad, gboolean active);
247 248
static gboolean qtdemux_sink_activate_push (GstPad * sinkpad, gboolean active);
static gboolean gst_qtdemux_handle_sink_event (GstPad * pad, GstEvent * event);
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
249 250 251 252 253 254 255

static void qtdemux_parse_moov (GstQTDemux * qtdemux, void *buffer, int length);
static void qtdemux_parse (GstQTDemux * qtdemux, GNode * node, void *buffer,
    int length);
static QtNodeType *qtdemux_type_get (guint32 fourcc);
static void qtdemux_node_dump (GstQTDemux * qtdemux, GNode * node);
static void qtdemux_parse_tree (GstQTDemux * qtdemux);
256
static void qtdemux_parse_udta (GstQTDemux * qtdemux, GNode * udta);
257
static void qtdemux_tag_add_str (GstQTDemux * qtdemux, const char *tag,
258
    GNode * node);
259 260 261 262 263
static void qtdemux_tag_add_num (GstQTDemux * qtdemux, const char *tag1,
    const char *tag2, GNode * node);
static void qtdemux_tag_add_gnre (GstQTDemux * qtdemux, const char *tag,
    GNode * node);

264 265
static void gst_qtdemux_handle_esds (GstQTDemux * qtdemux,
    QtDemuxStream * stream, GNode * esds);
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
266
static GstCaps *qtdemux_video_caps (GstQTDemux * qtdemux, guint32 fourcc,
267
    const guint8 * stsd_data, const gchar ** codec_name);
268 269 270
static GstCaps *qtdemux_audio_caps (GstQTDemux * qtdemux,
    QtDemuxStream * stream, guint32 fourcc, const guint8 * data, int len,
    const gchar ** codec_name);
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
271 272 273

static GType
gst_qtdemux_get_type (void)
Artyom Baginski's avatar
Artyom Baginski committed
274 275 276 277 278
{
  static GType qtdemux_type = 0;

  if (!qtdemux_type) {
    static const GTypeInfo qtdemux_info = {
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
279 280 281 282 283
      sizeof (GstQTDemuxClass),
      (GBaseInitFunc) gst_qtdemux_base_init, NULL,
      (GClassInitFunc) gst_qtdemux_class_init,
      NULL, NULL, sizeof (GstQTDemux), 0,
      (GInstanceInitFunc) gst_qtdemux_init,
Artyom Baginski's avatar
Artyom Baginski committed
284
    };
285

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
286
    qtdemux_type =
287 288
        g_type_register_static (GST_TYPE_ELEMENT, "GstQTDemux", &qtdemux_info,
        0);
Artyom Baginski's avatar
Artyom Baginski committed
289 290 291 292
  }
  return qtdemux_type;
}

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
293 294
static void
gst_qtdemux_base_init (GstQTDemuxClass * klass)
295 296 297 298
{
  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);

  gst_element_class_add_pad_template (element_class,
David Schleef's avatar
David Schleef committed
299 300 301 302 303
      gst_static_pad_template_get (&gst_qtdemux_sink_template));
  gst_element_class_add_pad_template (element_class,
      gst_static_pad_template_get (&gst_qtdemux_videosrc_template));
  gst_element_class_add_pad_template (element_class,
      gst_static_pad_template_get (&gst_qtdemux_audiosrc_template));
304
  gst_element_class_set_details (element_class, &gst_qtdemux_details);
David Schleef's avatar
David Schleef committed
305

306 307
}

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
308 309
static void
gst_qtdemux_class_init (GstQTDemuxClass * klass)
Artyom Baginski's avatar
Artyom Baginski committed
310 311 312 313
{
  GObjectClass *gobject_class;
  GstElementClass *gstelement_class;

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
314 315
  gobject_class = (GObjectClass *) klass;
  gstelement_class = (GstElementClass *) klass;
Artyom Baginski's avatar
Artyom Baginski committed
316

317
  parent_class = g_type_class_peek_parent (klass);
318

319 320
  gobject_class->dispose = gst_qtdemux_dispose;

Artyom Baginski's avatar
Artyom Baginski committed
321 322 323
  gstelement_class->change_state = gst_qtdemux_change_state;
}

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
324 325
static void
gst_qtdemux_init (GstQTDemux * qtdemux)
Artyom Baginski's avatar
Artyom Baginski committed
326
{
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
327
  qtdemux->sinkpad =
328
      gst_pad_new_from_static_template (&gst_qtdemux_sink_template, "sink");
329 330 331
  gst_pad_set_activate_function (qtdemux->sinkpad, qtdemux_sink_activate);
  gst_pad_set_activatepull_function (qtdemux->sinkpad,
      qtdemux_sink_activate_pull);
332 333 334 335
  gst_pad_set_activatepush_function (qtdemux->sinkpad,
      qtdemux_sink_activate_push);
  gst_pad_set_chain_function (qtdemux->sinkpad, gst_qtdemux_chain);
  gst_pad_set_event_function (qtdemux->sinkpad, gst_qtdemux_handle_sink_event);
Artyom Baginski's avatar
Artyom Baginski committed
336
  gst_element_add_pad (GST_ELEMENT (qtdemux), qtdemux->sinkpad);
337

338
  qtdemux->state = QTDEMUX_STATE_INITIAL;
339
  qtdemux->last_ts = GST_CLOCK_TIME_NONE;
340 341 342 343
  qtdemux->pullbased = FALSE;
  qtdemux->neededbytes = 16;
  qtdemux->todrop = 0;
  qtdemux->adapter = gst_adapter_new ();
344 345 346
  qtdemux->offset = 0;
  qtdemux->mdatoffset = GST_CLOCK_TIME_NONE;
  qtdemux->mdatbuffer = NULL;
347
  gst_segment_init (&qtdemux->segment, GST_FORMAT_TIME);
Artyom Baginski's avatar
Artyom Baginski committed
348 349
}

350 351 352 353 354 355 356 357 358
static void
gst_qtdemux_dispose (GObject * object)
{
  GstQTDemux *qtdemux = GST_QTDEMUX (object);

  if (qtdemux->adapter) {
    g_object_unref (G_OBJECT (qtdemux->adapter));
    qtdemux->adapter = NULL;
  }
359 360

  G_OBJECT_CLASS (parent_class)->dispose (object);
361 362
}

363
#if 0
364
static gboolean
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
365 366
gst_qtdemux_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
    GstFormat * dest_format, gint64 * dest_value)
367 368
{
  gboolean res = TRUE;
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
369
  QtDemuxStream *stream = gst_pad_get_element_private (pad);
370

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
371
  if (stream->subtype == GST_MAKE_FOURCC ('v', 'i', 'd', 'e') &&
372 373 374 375 376 377
      (src_format == GST_FORMAT_BYTES || *dest_format == GST_FORMAT_BYTES))
    return FALSE;

  switch (src_format) {
    case GST_FORMAT_TIME:
      switch (*dest_format) {
378 379 380 381 382 383 384 385 386
        case GST_FORMAT_BYTES:
          *dest_value = src_value * 1;  /* FIXME */
          break;
        case GST_FORMAT_DEFAULT:
          *dest_value = src_value * 1;  /* FIXME */
          break;
        default:
          res = FALSE;
          break;
387 388 389 390
      }
      break;
    case GST_FORMAT_BYTES:
      switch (*dest_format) {
391 392 393 394 395 396
        case GST_FORMAT_TIME:
          *dest_value = src_value * 1;  /* FIXME */
          break;
        default:
          res = FALSE;
          break;
397 398 399 400
      }
      break;
    case GST_FORMAT_DEFAULT:
      switch (*dest_format) {
401 402 403 404 405 406
        case GST_FORMAT_TIME:
          *dest_value = src_value * 1;  /* FIXME */
          break;
        default:
          res = FALSE;
          break;
407 408 409 410 411 412 413 414
      }
      break;
    default:
      res = FALSE;
  }

  return res;
}
415
#endif
416 417

static const GstQueryType *
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
418
gst_qtdemux_get_src_query_types (GstPad * pad)
419 420 421
{
  static const GstQueryType src_types[] = {
    GST_QUERY_POSITION,
Wim Taymans's avatar
Wim Taymans committed
422
    GST_QUERY_DURATION,
423 424 425 426 427 428 429
    0
  };

  return src_types;
}

static gboolean
430
gst_qtdemux_handle_src_query (GstPad * pad, GstQuery * query)
431
{
432 433
  gboolean res = FALSE;
  GstQTDemux *qtdemux = GST_QTDEMUX (gst_pad_get_parent (pad));
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
434

435
  switch (GST_QUERY_TYPE (query)) {
436
    case GST_QUERY_POSITION:
Wim Taymans's avatar
Wim Taymans committed
437 438 439 440 441 442
      if (GST_CLOCK_TIME_IS_VALID (qtdemux->last_ts)) {
        gst_query_set_position (query, GST_FORMAT_TIME, qtdemux->last_ts);
        res = TRUE;
      }
      break;
    case GST_QUERY_DURATION:
443 444
      if (qtdemux->pullbased && qtdemux->duration != 0
          && qtdemux->timescale != 0) {
445 446 447 448 449 450
        gint64 duration;

        duration = gst_util_uint64_scale_int (qtdemux->duration,
            GST_SECOND, qtdemux->timescale);

        gst_query_set_duration (query, GST_FORMAT_TIME, duration);
451
        res = TRUE;
452 453 454 455 456 457 458
      }
      break;
    default:
      res = FALSE;
      break;
  }

459 460
  gst_object_unref (qtdemux);

461 462 463
  return res;
}

464
/* push event on all source pads; takes ownership of the event */
465
static void
466
gst_qtdemux_push_event (GstQTDemux * qtdemux, GstEvent * event)
467 468 469 470 471 472 473
{
  guint n;

  GST_DEBUG_OBJECT (qtdemux, "pushing %s event on all source pads",
      GST_EVENT_TYPE_NAME (event));

  for (n = 0; n < qtdemux->n_streams; n++) {
474
    gst_pad_push_event (qtdemux->streams[n]->pad, gst_event_ref (event));
475 476 477 478
  }
  gst_event_unref (event);
}

479
/* move all streams back on the keyframe before @offset.
480
 * 
481 482 483 484
 * If @end is FALSE, the search is started from the current 
 * sample_index position of each stream.
 * If @end is TRUE, the search is started from the last sample
 * of each stream.
485
 *
486
 * Returns: the minimum of the timestamps of the positions of all streams.
487
 */
488
/* FIXME, binary search would be nice here */
489 490 491 492 493 494 495 496 497 498
static guint64
gst_qtdemux_go_back (GstQTDemux * qtdemux, gboolean end, guint64 offset)
{
  gint n;
  guint64 min_time = G_MAXUINT64;

  /* resync to new time */
  for (n = 0; n < qtdemux->n_streams; n++) {
    QtDemuxStream *str;
    gboolean keyframe;
499
    gint search;
500 501 502 503

    str = qtdemux->streams[n];
    keyframe = str->all_keyframe;

504 505 506 507 508 509 510 511
    /* start from the last sample if @end == TRUE */
    if (end) {
      if (str->n_samples == 0)
        search = 0;
      else
        search = str->n_samples - 1;
    } else
      search = str->sample_index;
512

513
    for (; search > 0; search--) {
514 515
      guint64 timestamp;

516
      timestamp = str->samples[search].timestamp;
517 518 519 520 521

      /* Seek to the sample just before the desired offset and
       * let downstream throw away bits outside of the segment */
      if (timestamp <= offset) {
        /* update the keyframe flag */
522
        keyframe = keyframe | str->samples[search].keyframe;
523 524
        if (keyframe) {
          GST_DEBUG_OBJECT (qtdemux,
525
              "found keyframe at sample %d, %" GST_TIME_FORMAT, search,
526
              GST_TIME_ARGS (timestamp));
527
          /* update min_time */
528 529 530 531 532 533 534
          if (timestamp < min_time)
            min_time = timestamp;
          break;
        }
      }
    }

535 536 537
    /* did not find anything or we're at the beginning, position to beginning */
    if (search <= 0) {
      search = 0;
538 539
      min_time = 0;
    }
540 541 542 543 544 545
    /* and set stream to the index */
    if (search != str->sample_index) {
      str->sample_index = search;
      /* position changed, we have a discont */
      str->discont = TRUE;
    }
546 547 548 549 550 551 552
  }
  return min_time;
}

/* perform the seek.
 *
 * We always go to the keyframe before the desired seek position. If
553 554 555 556
 * the seek was to a keyframe, we update the last_stop and time with 
 * the position of the keyframe, else we leve the event as-is and it 
 * will be clipped automatically to the right segment boundaries by 
 * downstream elements.
557
 */
558
static gboolean
559
gst_qtdemux_perform_seek (GstQTDemux * qtdemux, GstSegment * segment)
560
{
561 562
  gint64 desired_offset;
  guint64 min;
563

564
  desired_offset = segment->last_stop;
565

566 567
  GST_DEBUG_OBJECT (qtdemux, "seeking to %" GST_TIME_FORMAT,
      GST_TIME_ARGS (desired_offset));
568

569 570 571
  /* position all streams to key unit before the desired time,
   * start searching from the last sample in the stream. */
  min = gst_qtdemux_go_back (qtdemux, TRUE, desired_offset);
572

573 574 575 576 577 578
  if (segment->flags & GST_SEEK_FLAG_KEY_UNIT) {
    GST_DEBUG_OBJECT (qtdemux, "keyframe seek, align to %" GST_TIME_FORMAT,
        GST_TIME_ARGS (min));
    /* key unit, we seek to min, so back off streams to this new
     * position. We start from our current position. */
    gst_qtdemux_go_back (qtdemux, FALSE, min);
579

580
    /* update the segment values to the position of the keyframes */
581 582 583 584 585
    segment->last_stop = min;
    segment->time = min;
  }
  return TRUE;
}
586

587
/* do a seek in pull based mode */
588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627
static gboolean
gst_qtdemux_do_seek (GstQTDemux * qtdemux, GstPad * pad, GstEvent * event)
{
  gdouble rate;
  GstFormat format;
  GstSeekFlags flags;
  GstSeekType cur_type, stop_type;
  gint64 cur, stop;
  gboolean flush;
  gboolean res;
  gboolean update;
  GstSegment seeksegment;
  GstEvent *newsegment;

  if (event) {
    GST_DEBUG_OBJECT (qtdemux, "doing seek with event");

    gst_event_parse_seek (event, &rate, &format, &flags,
        &cur_type, &cur, &stop_type, &stop);

    /* we have to have a format as the segment format. Try to convert
     * if not. */
    if (format != GST_FORMAT_TIME) {
      GstFormat fmt;

      fmt = GST_FORMAT_TIME;
      res = TRUE;
      if (cur_type != GST_SEEK_TYPE_NONE)
        res = gst_pad_query_convert (pad, format, cur, &fmt, &cur);
      if (res && stop_type != GST_SEEK_TYPE_NONE)
        res = gst_pad_query_convert (pad, format, stop, &fmt, &stop);
      if (!res)
        goto no_format;

      format = fmt;
    }
  } else {
    GST_DEBUG_OBJECT (qtdemux, "doing seek without event");
    flags = 0;
  }
628

629
  flush = flags & GST_SEEK_FLAG_FLUSH;
630

631
  GST_DEBUG_OBJECT (qtdemux, "seek format %d", format);
632

633
  /* stop streaming, either by flushing or by pausing the task */
634 635 636 637 638 639
  if (flush) {
    /* unlock upstream pull_range */
    gst_pad_push_event (qtdemux->sinkpad, gst_event_new_flush_start ());
    /* make sure out loop function exits */
    gst_qtdemux_push_event (qtdemux, gst_event_new_flush_start ());
  } else {
640
    /* non flushing seek, pause the task */
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658
    qtdemux->segment_running = FALSE;
    gst_pad_pause_task (qtdemux->sinkpad);
  }

  /* wait for streaming to finish */
  GST_PAD_STREAM_LOCK (qtdemux->sinkpad);

  /* copy segment, we need this because we still need the old
   * segment when we close the current segment. */
  memcpy (&seeksegment, &qtdemux->segment, sizeof (GstSegment));

  if (event) {
    /* configure the segment with the seek variables */
    GST_DEBUG_OBJECT (qtdemux, "configuring seek");
    gst_segment_set_seek (&seeksegment, rate, format, flags,
        cur_type, cur, stop_type, stop, &update);
  }

659
  /* now do the seek, this actually never returns FALSE */
660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679
  res = gst_qtdemux_perform_seek (qtdemux, &seeksegment);

  /* prepare for streaming again */
  if (flush) {
    gst_pad_push_event (qtdemux->sinkpad, gst_event_new_flush_stop ());
    gst_qtdemux_push_event (qtdemux, gst_event_new_flush_stop ());
  } else if (qtdemux->segment_running) {
    /* we are running the current segment and doing a non-flushing seek,
     * close the segment first based on the last_stop. */
    GST_DEBUG_OBJECT (qtdemux, "closing running segment %" G_GINT64_FORMAT
        " to %" G_GINT64_FORMAT, qtdemux->segment.start,
        qtdemux->segment.last_stop);

    gst_qtdemux_push_event (qtdemux,
        gst_event_new_new_segment (TRUE,
            qtdemux->segment.rate, qtdemux->segment.format,
            qtdemux->segment.start, qtdemux->segment.last_stop,
            qtdemux->segment.time));
  }

680
  /* commit the new segment */
681 682 683 684 685 686 687 688
  memcpy (&qtdemux->segment, &seeksegment, sizeof (GstSegment));

  if (qtdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
    gst_element_post_message (GST_ELEMENT_CAST (qtdemux),
        gst_message_new_segment_start (GST_OBJECT_CAST (qtdemux),
            qtdemux->segment.format, qtdemux->segment.last_stop));
  }

689
  /* send the newsegment */
690 691 692 693 694 695 696 697 698 699
  GST_DEBUG_OBJECT (qtdemux, "Sending newsegment from %" G_GINT64_FORMAT
      " to %" G_GINT64_FORMAT, qtdemux->segment.start, stop);

  newsegment =
      gst_event_new_new_segment (FALSE, qtdemux->segment.rate,
      qtdemux->segment.format, qtdemux->segment.last_stop,
      qtdemux->segment.stop, qtdemux->segment.time);

  gst_qtdemux_push_event (qtdemux, newsegment);

700
  /* restart streaming */
701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725
  qtdemux->segment_running = TRUE;
  gst_pad_start_task (qtdemux->sinkpad, (GstTaskFunction) gst_qtdemux_loop,
      qtdemux->sinkpad);

  GST_PAD_STREAM_UNLOCK (qtdemux->sinkpad);

  return TRUE;

  /* ERRORS */
no_format:
  {
    GST_DEBUG_OBJECT (qtdemux, "unsupported format given, seek aborted.");
    return FALSE;
  }
}

static gboolean
gst_qtdemux_handle_src_event (GstPad * pad, GstEvent * event)
{
  gboolean res = TRUE;
  GstQTDemux *qtdemux = GST_QTDEMUX (gst_pad_get_parent (pad));

  switch (GST_EVENT_TYPE (event)) {
    case GST_EVENT_SEEK:
      res = gst_qtdemux_do_seek (qtdemux, pad, event);
726
      break;
727 728 729 730 731
    default:
      res = FALSE;
      break;
  }

732 733
  gst_object_unref (qtdemux);

734 735 736 737 738
  gst_event_unref (event);

  return res;
}

739 740
GST_DEBUG_CATEGORY (qtdemux_debug);

Artyom Baginski's avatar
Artyom Baginski committed
741
static gboolean
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
742
plugin_init (GstPlugin * plugin)
Artyom Baginski's avatar
Artyom Baginski committed
743
{
744
  GST_DEBUG_CATEGORY_INIT (qtdemux_debug, "qtdemux", 0, "qtdemux plugin");
745

746
  return gst_element_register (plugin, "qtdemux",
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
747
      GST_RANK_PRIMARY, GST_TYPE_QTDEMUX);
Artyom Baginski's avatar
Artyom Baginski committed
748 749
}

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
750 751 752 753
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
    GST_VERSION_MINOR,
    "qtdemux",
    "Quicktime stream demuxer",
754
    plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
755

756
static gboolean
757
gst_qtdemux_handle_sink_event (GstPad * sinkpad, GstEvent * event)
Artyom Baginski's avatar
Artyom Baginski committed
758
{
759 760 761 762 763 764
  GstQTDemux *demux = GST_QTDEMUX (GST_PAD_PARENT (sinkpad));
  gboolean res = FALSE;

  switch (GST_EVENT_TYPE (event)) {
    case GST_EVENT_NEWSEGMENT:
      /* We need to convert it to a GST_FORMAT_TIME new segment */
Artyom Baginski's avatar
Artyom Baginski committed
765
    default:
766
      gst_pad_event_default (demux->sinkpad, event);
767
      return TRUE;
Artyom Baginski's avatar
Artyom Baginski committed
768
  }
769

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
770
  gst_event_unref (event);
771
  return res;
Artyom Baginski's avatar
Artyom Baginski committed
772 773
}

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
774 775
static GstStateChangeReturn
gst_qtdemux_change_state (GstElement * element, GstStateChange transition)
776
{
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
777
  GstQTDemux *qtdemux = GST_QTDEMUX (element);
778 779
  GstStateChangeReturn result = GST_STATE_CHANGE_FAILURE;

780 781 782 783 784 785 786
  switch (transition) {
    case GST_STATE_CHANGE_PAUSED_TO_READY:
      break;
    default:
      break;
  }

787
  result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
Artyom Baginski's avatar
Artyom Baginski committed
788

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
789 790
  switch (transition) {
    case GST_STATE_CHANGE_PAUSED_TO_READY:{
791 792
      gint n;

793
      qtdemux->state = QTDEMUX_STATE_INITIAL;
794
      qtdemux->last_ts = GST_CLOCK_TIME_NONE;
795 796 797 798
      qtdemux->neededbytes = 16;
      qtdemux->todrop = 0;
      qtdemux->pullbased = FALSE;
      qtdemux->offset = 0;
799 800 801 802
      qtdemux->mdatoffset = GST_CLOCK_TIME_NONE;
      if (qtdemux->mdatbuffer)
        gst_buffer_unref (qtdemux->mdatbuffer);
      qtdemux->mdatbuffer = NULL;
803
      gst_adapter_clear (qtdemux->adapter);
804 805 806
      for (n = 0; n < qtdemux->n_streams; n++) {
        gst_element_remove_pad (element, qtdemux->streams[n]->pad);
        g_free (qtdemux->streams[n]->samples);
807 808
        if (qtdemux->streams[n]->caps)
          gst_caps_unref (qtdemux->streams[n]->caps);
809 810 811
        g_free (qtdemux->streams[n]);
      }
      qtdemux->n_streams = 0;
812
      gst_segment_init (&qtdemux->segment, GST_FORMAT_TIME);
813
      break;
814
    }
815 816 817
    default:
      break;
  }
Artyom Baginski's avatar
Artyom Baginski committed
818

819
  return result;
820
}
Artyom Baginski's avatar
Artyom Baginski committed
821

Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
822
static void
823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858
extract_initial_length_and_fourcc (guint8 * data, guint32 * plength,
    guint32 * pfourcc)
{
  guint32 length;
  guint32 fourcc;

  length = GST_READ_UINT32_BE (data);
  GST_DEBUG ("length %08x", length);
  fourcc = GST_READ_UINT32_LE (data + 4);
  GST_DEBUG ("atom type %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));

  if (length == 0) {
    length = G_MAXUINT32;
  }
  if (length == 1) {
    /* this means we have an extended size, which is the 64 bit value of
     * the next 8 bytes */
    guint32 length1, length2;

    length1 = GST_READ_UINT32_BE (data + 8);
    GST_DEBUG ("length1 %08x", length1);
    length2 = GST_READ_UINT32_BE (data + 12);
    GST_DEBUG ("length2 %08x", length2);

    /* FIXME: I guess someone didn't want to make 64 bit size work :) */
    length = length2;
  }

  if (plength)
    *plength = length;
  if (pfourcc)
    *pfourcc = fourcc;
}

static GstFlowReturn
gst_qtdemux_loop_state_header (GstQTDemux * qtdemux)
859 860 861
{
  guint32 length;
  guint32 fourcc;
862
  GstBuffer *buf = NULL;
863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885
  GstFlowReturn ret = GST_FLOW_OK;
  guint64 cur_offset = qtdemux->offset;

  ret = gst_pad_pull_range (qtdemux->sinkpad, cur_offset, 16, &buf);
  if (ret != GST_FLOW_OK)
    goto beach;
  extract_initial_length_and_fourcc (GST_BUFFER_DATA (buf), &length, &fourcc);
  gst_buffer_unref (buf);


  switch (fourcc) {
    case GST_MAKE_FOURCC ('m', 'd', 'a', 't'):
    case GST_MAKE_FOURCC ('f', 'r', 'e', 'e'):
    case GST_MAKE_FOURCC ('w', 'i', 'd', 'e'):
    case GST_MAKE_FOURCC ('P', 'I', 'C', 'T'):
    case GST_MAKE_FOURCC ('p', 'n', 'o', 't'):
      goto ed_edd_and_eddy;
    case GST_MAKE_FOURCC ('m', 'o', 'o', 'v'):{
      GstBuffer *moov;

      ret = gst_pad_pull_range (qtdemux->sinkpad, cur_offset, length, &moov);
      if (ret != GST_FLOW_OK)
        goto beach;
886 887 888 889 890 891 892
      if (length != GST_BUFFER_SIZE (moov)) {
        GST_WARNING_OBJECT (qtdemux,
            "We got less than expected (received %d, wanted %d)",
            GST_BUFFER_SIZE (moov), length);
        ret = GST_FLOW_ERROR;
        goto beach;
      }
893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929
      cur_offset += length;
      qtdemux->offset += length;

      qtdemux_parse_moov (qtdemux, GST_BUFFER_DATA (moov), length);
      if (1) {
        qtdemux_node_dump (qtdemux, qtdemux->moov_node);
      }
      qtdemux_parse_tree (qtdemux);
      g_node_destroy (qtdemux->moov_node);
      gst_buffer_unref (moov);
      qtdemux->moov_node = NULL;
      qtdemux->state = QTDEMUX_STATE_MOVIE;
      GST_DEBUG_OBJECT (qtdemux, "switching state to STATE_MOVIE (%d)",
          qtdemux->state);
    }
      break;
    ed_edd_and_eddy:
    default:{
      GST_LOG ("unknown %08x '%" GST_FOURCC_FORMAT "' at %d",
          fourcc, GST_FOURCC_ARGS (fourcc), cur_offset);
      cur_offset += length;
      qtdemux->offset += length;
      break;
    }
  }

beach:
  return ret;
}

static GstFlowReturn
gst_qtdemux_loop_state_movie (GstQTDemux * qtdemux)
{
  GstFlowReturn ret = GST_FLOW_OK;
  GstBuffer *buf = NULL;
  QtDemuxStream *stream;
  guint64 min_time;
930
  guint64 offset;
931 932 933 934
  guint64 timestamp;
  gint size;
  gint index = -1;
  gint i;
935 936 937

  /* Figure out the next stream sample to output */
  min_time = G_MAXUINT64;
938

939 940
  for (i = 0; i < qtdemux->n_streams; i++) {
    stream = qtdemux->streams[i];
941
    if (stream->sample_index < stream->n_samples) {
942 943 944

      timestamp = stream->samples[stream->sample_index].timestamp;

945 946
      GST_LOG_OBJECT (qtdemux,
          "stream %d: sample_index %d, timestamp %" GST_TIME_FORMAT, i,
947
          stream->sample_index, GST_TIME_ARGS (timestamp));
948

949 950
      if (timestamp < min_time) {
        min_time = timestamp;
951 952
        index = i;
      }
953 954 955 956 957
    }
  }
  if (index == -1) {
    GST_DEBUG_OBJECT (qtdemux, "No samples left for any streams - EOS");
    gst_pad_event_default (qtdemux->sinkpad, gst_event_new_eos ());
958
    ret = GST_FLOW_UNEXPECTED;
959 960 961 962 963 964 965
    goto beach;
  }

  stream = qtdemux->streams[index];

  offset = stream->samples[stream->sample_index].offset;
  size = stream->samples[stream->sample_index].size;
966
  timestamp = stream->samples[stream->sample_index].timestamp;
967 968 969 970

  GST_LOG_OBJECT (qtdemux,
      "pushing from stream %d, sample_index=%d offset=%" G_GUINT64_FORMAT
      ",size=%d timestamp=%" GST_TIME_FORMAT,
971
      index, stream->sample_index, offset, size, GST_TIME_ARGS (timestamp));
972

973 974
  if (G_UNLIKELY (size <= 0))
    goto beach;
975

976 977
  GST_LOG_OBJECT (qtdemux, "reading %d bytes @ %" G_GUINT64_FORMAT, size,
      offset);
978

979 980 981
  ret = gst_pad_pull_range (qtdemux->sinkpad, offset, size, &buf);
  if (ret != GST_FLOW_OK)
    goto beach;
982

983
  buf = gst_buffer_make_metadata_writable (buf);
984

985 986 987 988 989 990 991 992 993 994
#if 0
  /* hum... FIXME changing framerate breaks horribly, better set
   * an average framerate, or get rid of the framerate property. */
  if (stream->subtype == GST_MAKE_FOURCC ('v', 'i', 'd', 'e')) {
    float fps =
        1. * GST_SECOND / stream->samples[stream->sample_index].duration;
    if (fps != stream->fps) {
      gst_caps_set_simple (stream->caps, "framerate", G_TYPE_DOUBLE, fps, NULL);
      stream->fps = fps;
      gst_pad_set_explicit_caps (stream->pad, stream->caps);
995
    }
996 997
  }
#endif
998

999 1000 1001 1002 1003 1004
  /* first buffer? */
  if (qtdemux->last_ts == GST_CLOCK_TIME_NONE) {
    gst_qtdemux_push_event (qtdemux,
        gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME,
            0, GST_CLOCK_TIME_NONE, 0));
  }
1005

1006 1007 1008 1009
  if (stream->discont) {
    GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
    stream->discont = FALSE;
  }
1010

1011 1012 1013 1014 1015 1016 1017 1018 1019 1020
  /* timestamps of AMR aren't known... */
  if (stream->fourcc == GST_MAKE_FOURCC ('s', 'a', 'm', 'r')) {
    if (stream->sample_index == 0)
      GST_BUFFER_TIMESTAMP (buf) = 0;
  } else {
    GST_BUFFER_TIMESTAMP (buf) = timestamp;
    qtdemux->last_ts = GST_BUFFER_TIMESTAMP (buf);
    GST_BUFFER_DURATION (buf) = gst_util_uint64_scale_int
        (stream->samples[stream->sample_index].duration, GST_SECOND,
        stream->timescale);
1021
  }
1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033
  gst_segment_set_last_stop (&qtdemux->segment, GST_FORMAT_TIME,
      qtdemux->last_ts);

  if (!(stream->all_keyframe || stream->samples[stream->sample_index].keyframe))
    GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);

  GST_LOG_OBJECT (qtdemux,
      "Pushing buffer with time %" GST_TIME_FORMAT " on pad %p",
      GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), stream->pad);
  gst_buffer_set_caps (buf, stream->caps);

  ret = gst_pad_push (stream->pad, buf);
1034 1035 1036 1037 1038 1039 1040 1041

  stream->sample_index++;

beach:
  return ret;
}

static void
1042
gst_qtdemux_loop (GstPad * pad)
1043
{
1044
  GstQTDemux *qtdemux;
1045
  guint64 cur_offset;
1046 1047 1048
  GstFlowReturn ret;

  qtdemux = GST_QTDEMUX (gst_pad_get_parent (pad));
1049

1050
  cur_offset = qtdemux->offset;
1051
  GST_LOG_OBJECT (qtdemux, "loop at position %" G_GUINT64_FORMAT ", state %d",
1052
      cur_offset, qtdemux->state);
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
1053 1054

  switch (qtdemux->state) {
1055 1056 1057 1058 1059 1060 1061 1062
    case QTDEMUX_STATE_INITIAL:
    case QTDEMUX_STATE_HEADER:
      ret = gst_qtdemux_loop_state_header (qtdemux);
      break;
    case QTDEMUX_STATE_MOVIE:
      ret = gst_qtdemux_loop_state_movie (qtdemux);
      break;
    default:
1063 1064
      /* ouch */
      goto invalid_state;
1065
  }
Thomas Vander Stichele's avatar
Thomas Vander Stichele committed
1066

1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094
  /* if all is fine, continue */
  if (G_LIKELY (ret == GST_FLOW_OK))
    goto done;

  /* we don't care about unlinked pads */
  if (ret == GST_FLOW_NOT_LINKED)
    goto done;

  /* other errors make us stop */
  GST_LOG_OBJECT (qtdemux, "pausing task, reason %s", gst_flow_get_name (ret));

  qtdemux->segment_running = FALSE;
  gst_pad_pause_task (qtdemux->sinkpad);

  /* fatal errors need special actions */
  if (GST_FLOW_IS_FATAL (ret)) {
    /* check EOS */
    if (ret == GST_FLOW_UNEXPECTED) {
      if (qtdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
        GST_LOG_OBJECT (qtdemux, "Sending segment done, at end of segment");
        gst_element_post_message (GST_ELEMENT_CAST (qtdemux),
            gst_message_new_segment_done (GST_OBJECT_CAST (qtdemux),
                GST_FORMAT_TIME, qtdemux->last_ts));
      } else {
        GST_LOG_OBJECT (qtdemux, "Sending EOS at end of segment");
        gst_qtdemux_push_event (qtdemux, gst_event_new_eos ());
      }
    } else {
1095
      gst_qtdemux_push_event (qtdemux, gst_event_new_eos ());
1096
      GST_ELEMENT_ERROR (qtdemux, STREAM, FAILED,
1097
          (NULL), ("streaming stopped, reason %s", gst_flow_get_name (ret)));
1098 1099
    }
  }
1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110