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gst/qtdemux/qtdemux.c: Hacked up qtdemux to make it spit out codec_data. Do _not_ look at this code; you will no lon...

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Original commit message from CVS:
* gst/qtdemux/qtdemux.c: (gst_qtdemux_add_stream), (qtdemux_parse),
(qtdemux_parse_trak), (get_size), (gst_qtdemux_handle_esds): Hacked
up qtdemux to make it spit out codec_data.  Do _not_ look at this
code; you will no longer respect me.
This commit is contained in:
David Schleef 2004-04-30 02:19:16 +00:00
parent 2f8542caab
commit 971c2a18cd
2 changed files with 152 additions and 0 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2004-04-29 David Schleef <ds@schleef.org>
* gst/qtdemux/qtdemux.c: (gst_qtdemux_add_stream), (qtdemux_parse),
(qtdemux_parse_trak), (get_size), (gst_qtdemux_handle_esds): Hacked
up qtdemux to make it spit out codec_data. Do _not_ look at this
code; you will no longer respect me.
2004-04-29 Stephane Loeuillet <stephane.loeuillet@tiscali.fr>
* ext/alsa/gstalsa.c : (gst_alsa_class_probe_devices)

145
gst/qtdemux/qtdemux.c
View file

@ -31,6 +31,7 @@ GST_DEBUG_CATEGORY_EXTERN (qtdemux_debug);
#define GST_CAT_DEFAULT qtdemux_debug
#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))
#define QTDEMUX_GUINT8_GET(a) (*(guint8 *)(a))
#define QTDEMUX_FP32_GET(a) ((GST_READ_UINT32_BE(a))/65536.0)
@ -157,6 +158,8 @@ static void qtdemux_parse (GstQTDemux * qtdemux, GNode * node, void *buffer,
static QtNodeType *qtdemux_type_get (guint32 fourcc);
static void qtdemux_node_dump (GstQTDemux * qtdemux, GNode * node);
static void qtdemux_parse_tree (GstQTDemux * qtdemux);
static void gst_qtdemux_handle_esds (GstQTDemux * qtdemux,
QtDemuxStream * stream, GNode * esds);
static GstCaps *qtdemux_video_caps (GstQTDemux * qtdemux, guint32 fourcc,
const guint8 * stsd_data);
static GstCaps *qtdemux_audio_caps (GstQTDemux * qtdemux, guint32 fourcc,
@ -754,6 +757,7 @@ gst_qtdemux_add_stream (GstQTDemux * qtdemux, QtDemuxStream * stream)
gst_pad_set_formats_function (stream->pad, gst_qtdemux_get_src_formats);
gst_pad_set_convert_function (stream->pad, gst_qtdemux_src_convert);
g_print ("setting caps %s\n", gst_caps_to_string (stream->caps));
gst_pad_set_explicit_caps (stream->pad, stream->caps);
GST_DEBUG ("adding pad %p to qtdemux %p", stream->pad, qtdemux);
@ -805,7 +809,9 @@ gst_qtdemux_add_stream (GstQTDemux * qtdemux, QtDemuxStream * stream)
#define FOURCC_cmvd GST_MAKE_FOURCC('c','m','v','d')
#define FOURCC_hint GST_MAKE_FOURCC('h','i','n','t')
#define FOURCC_mp4a GST_MAKE_FOURCC('m','p','4','a')
#define FOURCC_mp4v GST_MAKE_FOURCC('m','p','4','v')
#define FOURCC_wave GST_MAKE_FOURCC('w','a','v','e')
#define FOURCC_appl GST_MAKE_FOURCC('a','p','p','l')
#define FOURCC_esds GST_MAKE_FOURCC('e','s','d','s')
@ -886,7 +892,9 @@ QtNodeType qt_node_types[] = {
qtdemux_dump_cmvd},
{FOURCC_hint, "hint", 0, qtdemux_dump_unknown},
{FOURCC_mp4a, "mp4a", 0, qtdemux_dump_unknown},
{FOURCC_mp4v, "mp4v", 0, qtdemux_dump_unknown},
{FOURCC_wave, "wave", QT_CONTAINER},
{FOURCC_appl, "appl", QT_CONTAINER},
{0, "unknown", 0},
};
static int n_qt_node_types = sizeof (qt_node_types) / sizeof (qt_node_types[0]);
@ -1032,6 +1040,7 @@ qtdemux_parse (GstQTDemux * qtdemux, GNode * node, void *buffer, int length)
void *buf;
guint32 len;
gst_util_dump_mem (buffer, length);
GST_DEBUG_OBJECT (qtdemux,
"parsing stsd (sample table, sample description) atom");
buf = buffer + 16;
@ -1073,6 +1082,46 @@ qtdemux_parse (GstQTDemux * qtdemux, GNode * node, void *buffer, int length)
g_node_append (node, child);
qtdemux_parse (qtdemux, child, buf, len);
buf += len;
}
}
} else if (fourcc == FOURCC_mp4v) {
void *buf;
guint32 len;
guint32 version;
int tlen;
g_print ("parsing in mp4v\n");
version = QTDEMUX_GUINT32_GET (buffer + 16);
g_print ("version %08x\n", version);
if (1 || version == 0x00000000) {
buf = buffer + 0x32;
end = buffer + length;
tlen = QTDEMUX_GUINT8_GET (buf);
g_print ("tlen = %d\n", tlen);
buf++;
g_print ("string = %.*s\n", tlen, (char *) buf);
buf += tlen;
buf += 23;
gst_util_dump_mem (buf, end - buf);
while (buf < end) {
GNode *child;
if (buf + 8 >= end) {
/* FIXME: get annoyed */
GST_LOG ("buffer overrun");
}
len = QTDEMUX_GUINT32_GET (buf);
if (len == 0)
break;
child = g_node_new (buf);
g_node_append (node, child);
qtdemux_parse (qtdemux, child, buf, len);
buf += len;
}
}
@ -1603,6 +1652,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
GNode *co64;
GNode *stts;
GNode *mp4a;
GNode *mp4v;
GNode *wave;
GNode *esds;
int n_samples;
@ -1667,6 +1717,15 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
fourcc = QTDEMUX_FOURCC_GET (stsd->data + offset + 4);
stream->caps = qtdemux_video_caps (qtdemux, fourcc, stsd->data);
mp4v = qtdemux_tree_get_child_by_type (stsd, FOURCC_mp4v);
esds = NULL;
if (mp4v)
esds = qtdemux_tree_get_child_by_type (mp4v, FOURCC_esds);
if (esds) {
gst_qtdemux_handle_esds (qtdemux, stream, esds);
}
GST_INFO ("type " GST_FOURCC_FORMAT " caps %" GST_PTR_FORMAT,
GST_FOURCC_ARGS (QTDEMUX_FOURCC_GET (stsd->data + offset + 4)),
stream->caps);
@ -1741,6 +1800,8 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
if (wave)
esds = qtdemux_tree_get_child_by_type (wave, FOURCC_esds);
if (esds) {
gst_qtdemux_handle_esds (qtdemux, stream, esds);
#if 0
GstBuffer *buffer;
int len = QTDEMUX_GUINT32_GET (esds->data);
@ -1749,6 +1810,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
gst_caps_set_simple (stream->caps, "codec_data",
GST_TYPE_BUFFER, buffer, NULL);
#endif
}
GST_INFO ("type " GST_FOURCC_FORMAT " caps %" GST_PTR_FORMAT,
GST_FOURCC_ARGS (QTDEMUX_FOURCC_GET (stsd->data + 16 + 4)),
@ -1938,6 +2000,89 @@ done2:
gst_qtdemux_add_stream (qtdemux, stream);
}
/* taken from ffmpeg */
static unsigned int
get_size (guint8 * ptr, guint8 ** end)
{
int count = 4;
int len = 0;
while (count--) {
int c = *ptr;
ptr++;
len = (len << 7) | (c & 0x7f);
if (!(c & 0x80))
break;
}
if (end)
*end = ptr;
return len;
}
static void
gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
GNode * esds)
{
int len = QTDEMUX_GUINT32_GET (esds->data);
guint8 *ptr = esds->data;
guint8 *end = ptr + len;
int tag;
guint8 *data_ptr = NULL;
int data_len = 0;
gst_util_dump_mem (ptr, len);
ptr += 8;
g_print ("version/flags = %08x\n", QTDEMUX_GUINT32_GET (ptr));
ptr += 4;
while (ptr < end) {
tag = QTDEMUX_GUINT8_GET (ptr);
g_print ("tag = %02x\n", tag);
ptr++;
len = get_size (ptr, &ptr);
g_print ("len = %d\n", len);
switch (tag) {
case 0x03:
g_print ("ID %04x\n", QTDEMUX_GUINT16_GET (ptr));
g_print ("priority %04x\n", QTDEMUX_GUINT8_GET (ptr + 2));
ptr += 3;
break;
case 0x04:
g_print ("object_type_id %02x\n", QTDEMUX_GUINT8_GET (ptr));
g_print ("stream_type %02x\n", QTDEMUX_GUINT8_GET (ptr + 1));
g_print ("buffer_size_db %02x\n", QTDEMUX_GUINT24_GET (ptr + 2));
g_print ("max bitrate %d\n", QTDEMUX_GUINT32_GET (ptr + 5));
g_print ("avg bitrate %d\n", QTDEMUX_GUINT32_GET (ptr + 9));
ptr += 13;
break;
case 0x05:
g_print ("data:\n");
gst_util_dump_mem (ptr, len);
data_ptr = ptr;
data_len = len;
ptr += len;
break;
case 0x06:
g_print ("data %02x\n", QTDEMUX_GUINT8_GET (ptr));
ptr += 1;
break;
default:
g_print ("parse error\n");
}
}
if (data_ptr) {
GstBuffer *buffer;
buffer = gst_buffer_new_and_alloc (data_len);
memcpy (GST_BUFFER_DATA (buffer), data_ptr, data_len);
gst_util_dump_mem (GST_BUFFER_DATA (buffer), data_len);
gst_caps_set_simple (stream->caps, "codec_data", GST_TYPE_BUFFER,
buffer, NULL);
}
}
static GstCaps *
qtdemux_video_caps (GstQTDemux * qtdemux, guint32 fourcc,