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gstreamer/ext/swfdec/gstswfdec.c
David I. Lehn 5daec672ad sanity check in case of symbol clashes with avifile 
Original commit message from CVS:
sanity check in case of symbol clashes with avifile
2002-12-05 00:26:19 +00:00

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#include "gstswfdec.h"
#include <string.h>
/* elementfactory information */
static GstElementDetails gst_swfdec_details = {
"SWF video decoder",
"Codec/Video/Decoder",
"LGPL",
"Uses libswfdec to decode Flash video streams",
VERSION,
"David Schleef <ds@schleef.org>",
"(C) 2002",
};
/* Swfdec signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_FRAME_RATE,
/* FILL ME */
};
GST_PAD_TEMPLATE_FACTORY (video_template_factory,
"video_%02d",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_CAPS_NEW (
"swfdec_src",
"video/raw",
"format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('R','G','B',' ')),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096)
)
);
GST_PAD_TEMPLATE_FACTORY (audio_template_factory,
"audio_%02d",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_CAPS_NEW (
"swfdec_audiosrc",
"audio/raw",
"format", GST_PROPS_STRING("int"),
"law", GST_PROPS_INT(0),
"endianness", GST_PROPS_INT(G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN(TRUE),
"width", GST_PROPS_INT(16),
"depth", GST_PROPS_INT(16),
"rate", GST_PROPS_INT(44100),
"channels", GST_PROPS_INT(1)
)
);
GST_PAD_TEMPLATE_FACTORY (sink_template_factory,
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"swfdec_sink",
"application/x-shockwave-flash",
"format", GST_PROPS_STRING("SWF")
)
);
static void gst_swfdec_class_init (GstSwfdecClass *klass);
static void gst_swfdec_init (GstSwfdec *swfdec);
static void gst_swfdec_dispose (GObject *object);
static void gst_swfdec_set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec);
static void gst_swfdec_get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec);
#if 0
static GstPad *
gst_swfdec_request_new_pad (GstElement *element, GstPadTemplate *templ,
const gchar *template);
#endif
#if 0
static gboolean gst_swfdec_src_event (GstPad *pad, GstEvent *event);
static gboolean gst_swfdec_src_query (GstPad *pad, GstPadQueryType type,
GstFormat *format, gint64 *value);
static gboolean gst_swfdec_convert_sink (GstPad *pad, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
static gboolean gst_swfdec_convert_src (GstPad *pad, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
#endif
static GstElementStateReturn
gst_swfdec_change_state (GstElement *element);
#if 0
static void gst_swfdec_chain (GstPad *pad, GstBuffer *buffer);
#endif
static GstElementClass *parent_class = NULL;
/*static guint gst_swfdec_signals[LAST_SIGNAL] = { 0 };*/
GType
gst_swfdec_get_type (void)
{
static GType swfdec_type = 0;
if (!swfdec_type) {
static const GTypeInfo swfdec_info = {
sizeof(GstSwfdecClass),
NULL,
NULL,
(GClassInitFunc)gst_swfdec_class_init,
NULL,
NULL,
sizeof(GstSwfdec),
0,
(GInstanceInitFunc)gst_swfdec_init,
};
swfdec_type = g_type_register_static(GST_TYPE_ELEMENT, "GstSwfdec", &swfdec_info, 0);
}
return swfdec_type;
}
static void
gst_swfdec_class_init(GstSwfdecClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAME_RATE,
g_param_spec_float ("frame_rate","frame_rate","frame_rate",
0.0, 1000.0, 0.0, G_PARAM_READABLE));
gobject_class->set_property = gst_swfdec_set_property;
gobject_class->get_property = gst_swfdec_get_property;
gobject_class->dispose = gst_swfdec_dispose;
gstelement_class->change_state = gst_swfdec_change_state;
//gstelement_class->request_new_pad = gst_swfdec_request_new_pad;
}
#if 0
static void
gst_swfdec_vo_frame_draw (vo_frame_t * frame)
{
gst_swfdec_vo_instance_t *_instance;
gst_swfdec_vo_frame_t *_frame;
GstSwfdec *swfdec;
gint64 pts = -1;
g_return_if_fail (frame != NULL);
g_return_if_fail (((gst_swfdec_vo_frame_t *)frame)->buffer != NULL);
_frame = (gst_swfdec_vo_frame_t *)frame;
_instance = (gst_swfdec_vo_instance_t *)frame->instance;
swfdec = GST_SWFDEC (_instance->swfdec);
/* we have to be carefull here. we do swf_close in the READY state
* but it can send a few frames still. We have to make sure we are playing
* when we send frames. we do have to free those last frames though */
if (GST_STATE (GST_ELEMENT (swfdec)) != GST_STATE_PLAYING) {
gst_buffer_unref (_frame->buffer);
/* pretend we have sent the frame */
_frame->sent = TRUE;
return;
}
if (swfdec->frame_rate_code != swfdec->decoder->frame_rate_code)
{
swfdec->frame_rate_code = swfdec->decoder->frame_rate_code;
g_object_notify (G_OBJECT (swfdec), "frame_rate");
}
pts = swfdec->next_time - 3 * (GST_SECOND / video_rates[swfdec->decoder->frame_rate_code]);
GST_BUFFER_TIMESTAMP (_frame->buffer) = pts;
GST_DEBUG (0, "out: %lld %d %lld", GST_BUFFER_TIMESTAMP (_frame->buffer),
swfdec->decoder->frame_rate_code,
(long long)(GST_SECOND / video_rates[swfdec->decoder->frame_rate_code]));
swfdec->next_time += (GST_SECOND / video_rates[swfdec->decoder->frame_rate_code]) + swfdec->adjust;
GST_BUFFER_FLAG_SET (_frame->buffer, GST_BUFFER_READONLY);
swfdec->frames_per_PTS++;
swfdec->first = FALSE;
_frame->sent = TRUE;
swfdec->total_frames++;
gst_pad_push (swfdec->videopad, _frame->buffer);
}
#endif
#if 0
static int
gst_swfdec_setup (GstSwfdec *swfdec, int width, int height)
{
g_return_val_if_fail (swfdec != NULL, -1);
GST_INFO (GST_CAT_PLUGIN_INFO, "VO: setup w=%d h=%d", width, height);
swfdec->width = width;
swfdec->height = height;
swfdec->total_frames = 0;
gst_pad_try_set_caps (swfdec->videopad,
gst_caps_new (
"swfdec_caps",
"video/raw",
gst_props_new (
"format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('R','G','B',' ')),
"width", GST_PROPS_INT (width),
"height", GST_PROPS_INT (height),
NULL)));
return 0;
}
#endif
#if 0
static void
gst_swfdec_close (GstSwfdec *swfdec)
{
GST_INFO (GST_CAT_PLUGIN_INFO, "VO: close");
/* FIXME */
}
#endif
#if 0
static vo_frame_t *
gst_swfdec_vo_get_frame (vo_instance_t * instance, int flags)
{
gst_swfdec_vo_instance_t * _instance;
gst_swfdec_vo_frame_t *frame;
size_t size0;
uint8_t *data = NULL;
GstSwfdec *swfdec;
g_return_val_if_fail (instance != NULL, NULL);
GST_INFO (GST_CAT_PLUGIN_INFO, "VO: get_frame");
_instance = (gst_swfdec_vo_instance_t *)instance;
swfdec = _instance->swfdec;
if (flags & VO_PREDICTION_FLAG) {
_instance->prediction_index ^= 1;
frame = &_instance->frames[_instance->prediction_index];
} else {
frame = &_instance->frames[2];
}
/* we are reusing this frame */
if (frame->buffer != NULL) {
/* if the frame wasn't sent, we have to unref twice */
if (!frame->sent)
gst_buffer_unref (frame->buffer);
gst_buffer_unref (frame->buffer);
frame->buffer = NULL;
}
size0 = swfdec->width * swfdec->height / 4;
if (swfdec->pool) {
frame->buffer = gst_buffer_new_from_pool (swfdec->pool, 0, 0);
} else {
size_t size = 6 * size0;
size_t offset;
GstBuffer *parent;
parent = gst_buffer_new ();
GST_BUFFER_SIZE(parent) = size + 0x10;
GST_BUFFER_DATA(parent) = data = g_new(uint8_t, size + 0x10);
offset = 0x10 - (((unsigned long)data) & 0xf);
frame->buffer = gst_buffer_create_sub(parent, offset, size);
gst_buffer_unref(parent);
}
data = GST_BUFFER_DATA(frame->buffer);
/* need ref=2 */
/* 1 - unref when reusing this frame */
/* 2 - unref when other elements done with buffer */
gst_buffer_ref (frame->buffer);
frame->vo.base[0] = data;
frame->vo.base[1] = data + 4 * size0;
frame->vo.base[2] = data + 5 * size0;
/*printf("base[0]=%p\n", frame->vo.base[0]); */
frame->sent = FALSE;
return (vo_frame_t *)frame;
}
#endif
#if 0
static void
gst_swfdec_vo_open (GstSwfdec *swfdec)
{
gst_swfdec_vo_instance_t * instance;
gint i,j;
GST_INFO (GST_CAT_PLUGIN_INFO, "VO: open");
instance = g_new (gst_swfdec_vo_instance_t, 1);
instance->vo.setup = gst_swfdec_vo_setup;
instance->vo.close = gst_swfdec_vo_close;
instance->vo.get_frame = gst_swfdec_vo_get_frame;
instance->swfdec = swfdec;
for (i=0; i<NUM_FRAMES; i++) {
for (j=0; j<3; j++) {
instance->frames[j].vo.base[j] = NULL;
}
instance->frames[i].vo.copy = NULL;
instance->frames[i].vo.field = NULL;
instance->frames[i].vo.draw = gst_swfdec_vo_frame_draw;
instance->frames[i].vo.instance = (vo_instance_t *)instance;
instance->frames[i].buffer = NULL;
}
swfdec->vo = (vo_instance_t *) instance;
}
#endif
#if 0
static void
gst_swfdec_vo_destroy (GstSwfdec *swfdec)
{
gst_swfdec_vo_instance_t * instance;
gint i;
GST_INFO (GST_CAT_PLUGIN_INFO, "VO: destroy");
instance = (gst_swfdec_vo_instance_t *) swfdec->vo;
for (i=0; i<NUM_FRAMES; i++) {
if (instance->frames[i].buffer) {
if (!instance->frames[i].sent) {
gst_buffer_unref (instance->frames[i].buffer);
}
gst_buffer_unref (instance->frames[i].buffer);
}
}
g_free (instance);
swfdec->vo = NULL;
}
#endif
#if 0
static GstPadConnectReturn
gst_swfdec_connect(GstPad *pad, GstCaps *caps)
{
return GST_PAD_CONNECT_DELAYED;
}
#endif
#if 0
static void
src_disconnected(GstPad *srcpad, GstPad *sinkpad, GstSwfdec *plugin)
{
GST_DEBUG(GST_CAT_PADS, "removing pad %s:%s",
GST_DEBUG_PAD_NAME(srcpad));
gst_element_remove_pad(GST_ELEMENT(plugin), srcpad);
if(plugin->videopad == srcpad) plugin->videopad = NULL;
if(plugin->audiopad == srcpad) plugin->audiopad = NULL;
}
#endif
#if 0
static GstPad *
gst_swfdec_request_new_pad (GstElement *element, GstPadTemplate *templ,
const gchar *template)
{
gchar *name;
GstPad *srcpad;
GstSwfdec *plugin;
plugin = GST_SWFDEC(element);
g_return_val_if_fail(plugin != NULL, NULL);
g_return_val_if_fail(GST_IS_SWFDEC(plugin), NULL);
if(templ->direction != GST_PAD_SRC){
g_warning("swfdec: request new pad that is not SRC pad.\n");
return NULL;
}
//printf("requesting pad %s %d\n",template,templ->name);
#if 0
if(strcmp("audio", template) == 0){
g_print("swfdec adding pad audio_00\n");
srcpad = gst_pad_new_from_template(templ, "audio_00");
gst_element_add_pad(GST_ELEMENT(plugin), srcpad);
g_signal_connect(G_OBJECT(srcpad), "disconnected",
G_CALLBACK(src_disconnected), plugin);
gst_pad_set_connect_function(srcpad, gst_swfdec_connect);
plugin->audiopad = srcpad;
}else if(strcmp("video", template) == 0){
#endif
if(1){
g_print("swfdec adding pad video_00\n");
srcpad = gst_pad_new_from_template(templ, "video_00");
gst_element_add_pad(GST_ELEMENT(plugin), srcpad);
g_signal_connect(G_OBJECT(srcpad), "disconnected",
G_CALLBACK(src_disconnected), plugin);
gst_pad_set_connect_function(srcpad, gst_swfdec_connect);
plugin->videopad = srcpad;
}else{
g_warning("swfdec: request new pad with bad template\n");
return NULL;
}
return srcpad;
}
#endif
static void
gst_swfdec_loop(GstElement *element)
{
GstSwfdec *swfdec;
GstBuffer *buf = NULL;
int ret;
g_return_if_fail(element != NULL);
g_return_if_fail(GST_IS_SWFDEC(element));
swfdec = GST_SWFDEC(element);
if(!swfdec->videopad){
printf("creating videopad\n");
swfdec->videopad =
gst_pad_new_from_template(
GST_PAD_TEMPLATE_GET(video_template_factory),
"video_00");
printf("videopad=%p\n",swfdec->videopad);
swfdec->audiopad =
gst_pad_new_from_template(
GST_PAD_TEMPLATE_GET(audio_template_factory),
"audio_00");
printf("setting caps\n");
#if 0
gst_pad_try_set_caps(swfdec->videopad,
gst_pad_get_pad_template_caps(swfdec->videopad));
#endif
gst_pad_try_set_caps (swfdec->videopad,
gst_caps_new (
"swfdec_caps",
"video/raw",
gst_props_new (
"format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('R','G','B',' ')),
"width", GST_PROPS_INT (640),
"height", GST_PROPS_INT (480),
NULL)));
gst_pad_try_set_caps (swfdec->audiopad,
gst_caps_new (
"swfdec_caps",
"audio/raw",
gst_props_new(
"format", GST_PROPS_STRING("int"),
"law", GST_PROPS_INT(0),
"endianness", GST_PROPS_INT(G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN(TRUE),
"width", GST_PROPS_INT(16),
"depth", GST_PROPS_INT(16),
"rate", GST_PROPS_INT (44100),
"channels", GST_PROPS_INT (1),
NULL)));
printf("adding pad\n");
gst_element_add_pad(element, swfdec->videopad);
gst_element_add_pad(element, swfdec->audiopad);
}
ret = swf_parse(swfdec->state);
if(ret==SWF_NEEDBITS){
buf = gst_pad_pull(swfdec->sinkpad);
if(GST_IS_EVENT(buf)){
switch (GST_EVENT_TYPE (buf)) {
case GST_EVENT_EOS:
printf("got eos\n");
break;
default:
printf("got event\n");
break;
}
}else{
if(!GST_BUFFER_DATA(buf)){
printf("expected non-null buffer\n");
}
ret = swf_addbits(swfdec->state,GST_BUFFER_DATA(buf),
GST_BUFFER_SIZE(buf));
}
}
if(ret==SWF_CHANGE){
swfdec->width = swfdec->state->width;
swfdec->height = swfdec->state->height;
swfdec->interval = GST_SECOND / swfdec->state->rate;
#if G_BYTE_ORDER == 4321
#define RED_MASK 0xff0000
#define GREEN_MASK 0x00ff00
#define BLUE_MASK 0x0000ff
#else
#define RED_MASK 0x0000ff
#define GREEN_MASK 0x00ff00
#define BLUE_MASK 0xff0000
#endif
#if 1
gst_pad_try_set_caps(swfdec->videopad,
gst_caps_new(
"swfdec_caps",
"video/raw",
gst_props_new(
"format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
"width", GST_PROPS_INT(swfdec->width),
"height", GST_PROPS_INT(swfdec->height),
"bpp", GST_PROPS_INT (24),
"depth", GST_PROPS_INT (24),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"red_mask", GST_PROPS_INT (RED_MASK),
"green_mask", GST_PROPS_INT (GREEN_MASK),
"blue_mask", GST_PROPS_INT (BLUE_MASK),
NULL)));
#else
gst_pad_try_set_caps(swfdec->videopad,
gst_caps_new(
"swfdec_caps",
"video/raw",
gst_props_new(
"format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
"width", GST_PROPS_INT(swfdec->width),
"height", GST_PROPS_INT(swfdec->height),
"bpp", GST_PROPS_INT (16),
"depth", GST_PROPS_INT (16),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
NULL)));
#endif
gst_pad_try_set_caps(swfdec->audiopad,
gst_caps_new(
"swfdec_caps",
"audio/raw",
gst_props_new(
"format", GST_PROPS_STRING("int"),
"law", GST_PROPS_INT(0),
"endianness", GST_PROPS_INT(G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN(TRUE),
"width", GST_PROPS_INT(16),
"depth", GST_PROPS_INT(16),
"rate", GST_PROPS_INT (44100),
"channels", GST_PROPS_INT (1),
NULL)));
return;
}
if(ret==SWF_IMAGE){
GstBuffer *newbuf = NULL;
int newsize = swfdec->state->width * swfdec->state->height * 3;
/* video stuff */
if(swfdec->pool){
newbuf = gst_buffer_new_from_pool(swfdec->pool, 0, 0);
}
if(!newbuf){
newbuf = gst_buffer_new();
GST_BUFFER_SIZE(newbuf) = newsize;
GST_BUFFER_DATA(newbuf) = g_malloc(newsize);
}
g_return_if_fail(GST_BUFFER_DATA(newbuf) != NULL);
memcpy(GST_BUFFER_DATA(newbuf),swfdec->state->buffer,newsize);
swfdec->timestamp += swfdec->interval;
GST_BUFFER_TIMESTAMP(newbuf) = swfdec->timestamp;
gst_pad_push(swfdec->videopad, newbuf);
/* audio stuff */
newbuf = gst_buffer_new();
newsize = 2*44100.0/swfdec->state->rate;
GST_BUFFER_SIZE(newbuf) = newsize;
GST_BUFFER_DATA(newbuf) = g_malloc(newsize);
memcpy(GST_BUFFER_DATA(newbuf),swfdec->state->sound_buffer,
newsize);
GST_BUFFER_TIMESTAMP(newbuf) = swfdec->timestamp;
gst_pad_push(swfdec->audiopad, newbuf);
}
if(ret==SWF_EOF){
gst_pad_push(swfdec->videopad, GST_BUFFER (gst_event_new (GST_EVENT_EOS)));
gst_pad_push(swfdec->audiopad, GST_BUFFER (gst_event_new (GST_EVENT_EOS)));
}
}
static void
gst_swfdec_init (GstSwfdec *swfdec)
{
/* create the sink and src pads */
swfdec->sinkpad = gst_pad_new_from_template (
GST_PAD_TEMPLATE_GET (sink_template_factory), "sink");
gst_element_add_pad (GST_ELEMENT (swfdec), swfdec->sinkpad);
//gst_pad_set_chain_function (swfdec->sinkpad, gst_swfdec_chain);
//gst_pad_set_convert_function (swfdec->sinkpad, gst_swfdec_convert_sink);
#if 0
swfdec->videopad = gst_pad_new_from_template (
GST_PAD_TEMPLATE_GET (video_template_factory), "video_00");
gst_element_add_pad (GST_ELEMENT (swfdec), swfdec->videopad);
#endif
//gst_pad_set_event_function (swfdec->videopad, GST_DEBUG_FUNCPTR (gst_swfdec_src_event));
//gst_pad_set_query_function (swfdec->videopad, GST_DEBUG_FUNCPTR (gst_swfdec_src_query));
//gst_pad_set_convert_function (swfdec->videopad, gst_swfdec_convert_src);
#if 0
swfdec->audiopad = gst_pad_new_from_template (
GST_PAD_TEMPLATE_GET (audio_template_factory), "audio_00");
gst_element_add_pad (GST_ELEMENT (swfdec), swfdec->audiopad);
#endif
gst_element_set_loop_function(GST_ELEMENT(swfdec), gst_swfdec_loop);
/* initialize the swfdec decoder state */
swfdec->state = swf_init();
g_return_if_fail(swfdec->state != NULL);
swfdec->state->colorspace = SWF_COLORSPACE_RGB888;
GST_FLAG_SET (GST_ELEMENT (swfdec), GST_ELEMENT_EVENT_AWARE);
}
static void
gst_swfdec_dispose (GObject *object)
{
//GstSwfdec *swfdec = GST_SWFDEC (object);
/* FIXME */
//swf_state_free(swfdec->state);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
#if 0
static void
gst_swfdec_chain (GstPad *pad, GstBuffer *buf)
{
GstSwfdec *swfdec = GST_SWFDEC (gst_pad_get_parent (pad));
guint32 size;
guchar *data;
gint ret;
gint64 pts;
GST_DEBUG (0, "SWFDEC: chain called");
if (GST_IS_EVENT (buf)) {
GstEvent *event = GST_EVENT (buf);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
{
//gint64 value = GST_EVENT_DISCONT_OFFSET (event, 0).value;
//swfdec->decoder->is_sequence_needed = 1;
GST_DEBUG (GST_CAT_EVENT, "swfdec: discont\n");
swfdec->first = TRUE;
swfdec->timestamp = 0;
gst_pad_event_default (pad, event);
return;
}
case GST_EVENT_EOS:
if (!swfdec->closed) {
/* close flushes the last few frames */
//swf_close (swfdec->state);
swfdec->closed = TRUE;
}
default:
gst_pad_event_default (pad, event);
return;
}
}
size = GST_BUFFER_SIZE (buf);
data = GST_BUFFER_DATA (buf);
pts = GST_BUFFER_TIMESTAMP (buf);
GST_DEBUG (GST_CAT_CLOCK, "swfdec: pts %llu\n", pts);
swfdec->timestamp += swfdec->interval;
/* fprintf(stderr, "SWFDEC: in timestamp=%llu\n",GST_BUFFER_TIMESTAMP(buf)); */
/* fprintf(stderr, "SWFDEC: have buffer of %d bytes\n",size); */
ret = swf_addbits(swfdec->state, data, size);
if(ret==SWF_IMAGE){
}
/*fprintf(stderr, "SWFDEC: decoded %d frames\n", num_frames);*/
gst_buffer_unref(buf);
}
#endif
#if 0
static gboolean
gst_swfdec_convert_sink (GstPad *pad, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value)
{
gboolean res = TRUE;
GstSwfdec *swfdec;
swfdec = GST_SWFDEC (gst_pad_get_parent (pad));
switch (src_format) {
case GST_FORMAT_BYTES:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
default:
res = FALSE;
}
break;
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_BYTES;
case GST_FORMAT_BYTES:
default:
res = FALSE;
}
break;
default:
res = FALSE;
}
return res;
}
#endif
#if 0
static gboolean
gst_swfdec_convert_src (GstPad *pad, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value)
{
gboolean res = TRUE;
GstSwfdec *swfdec;
swfdec = GST_SWFDEC (gst_pad_get_parent (pad));
switch (src_format) {
case GST_FORMAT_BYTES:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
default:
res = FALSE;
}
break;
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_BYTES;
case GST_FORMAT_BYTES:
*dest_value = src_value * 6 * (swfdec->width * swfdec->height >> 2) *
video_rates[swfdec->decoder->frame_rate_code] / GST_SECOND;
break;
case GST_FORMAT_UNITS:
*dest_value = src_value * video_rates[swfdec->decoder->frame_rate_code] / GST_SECOND;
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_UNITS:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
if (video_rates[swfdec->decoder->frame_rate_code] != 0.0) {
*dest_value = src_value * GST_SECOND /
video_rates[swfdec->decoder->frame_rate_code];
}
else
res = FALSE;
break;
case GST_FORMAT_BYTES:
*dest_value = src_value * 6 * (swfdec->width * swfdec->height >> 2);
break;
case GST_FORMAT_UNITS:
*dest_value = src_value;
break;
default:
res = FALSE;
}
break;
default:
res = FALSE;
}
return res;
}
#endif
#if 0
static gboolean
gst_swfdec_src_query (GstPad *pad, GstPadQueryType type,
GstFormat *format, gint64 *value)
{
gboolean res = TRUE;
GstSwfdec *swfdec;
static const GstFormat formats[] = { GST_FORMAT_TIME, GST_FORMAT_BYTES };
#define MAX_SEEK_FORMATS 1 /* we can only do time seeking for now */
gint i;
swfdec = GST_SWFDEC (gst_pad_get_parent (pad));
switch (type) {
case GST_PAD_QUERY_TOTAL:
{
switch (*format) {
case GST_FORMAT_DEFAULT:
*format = GST_FORMAT_TIME;
/* fallthrough */
case GST_FORMAT_TIME:
case GST_FORMAT_BYTES:
case GST_FORMAT_UNITS:
{
res = FALSE;
for (i = 0; i < MAX_SEEK_FORMATS && !res; i++) {
GstFormat peer_format;
gint64 peer_value;
peer_format = formats[i];
/* do the probe */
if (gst_pad_query (GST_PAD_PEER (swfdec->sinkpad), GST_PAD_QUERY_TOTAL,
&peer_format, &peer_value))
{
GstFormat conv_format;
/* convert to TIME */
conv_format = GST_FORMAT_TIME;
res = gst_pad_convert (swfdec->sinkpad,
peer_format, peer_value,
&conv_format, value);
/* and to final format */
res &= gst_pad_convert (pad,
GST_FORMAT_TIME, *value,
format, value);
}
}
break;
}
default:
res = FALSE;
break;
}
break;
}
case GST_PAD_QUERY_POSITION:
{
switch (*format) {
case GST_FORMAT_DEFAULT:
*format = GST_FORMAT_TIME;
/* fallthrough */
default:
res = gst_pad_convert (pad,
GST_FORMAT_TIME, swfdec->next_time,
format, value);
break;
}
break;
}
default:
res = FALSE;
break;
}
return res;
}
#endif
#if 0
static gboolean
gst_swfdec_src_event (GstPad *pad, GstEvent *event)
{
gboolean res = TRUE;
GstSwfdec *swfdec;
static const GstFormat formats[] = { GST_FORMAT_TIME, GST_FORMAT_BYTES };
#define MAX_SEEK_FORMATS 1 /* we can only do time seeking for now */
gint i;
swfdec = GST_SWFDEC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
/* the all-formats seek logic */
case GST_EVENT_SEEK:
{
gint64 src_offset;
gboolean flush;
GstFormat format;
format = GST_FORMAT_TIME;
/* first bring the src_format to TIME */
if (!gst_pad_convert (pad,
GST_EVENT_SEEK_FORMAT (event), GST_EVENT_SEEK_OFFSET (event),
&format, &src_offset))
{
/* didn't work, probably unsupported seek format then */
res = FALSE;
break;
}
/* shave off the flush flag, we'll need it later */
flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
/* assume the worst */
res = FALSE;
/* while we did not exhaust our seek formats without result */
for (i = 0; i < MAX_SEEK_FORMATS && !res; i++) {
gint64 desired_offset;
format = formats[i];
/* try to convert requested format to one we can seek with on the sinkpad */
if (gst_pad_convert (swfdec->sinkpad, GST_FORMAT_TIME, src_offset, &format, &desired_offset))
{
GstEvent *seek_event;
/* conversion succeeded, create the seek */
seek_event = gst_event_new_seek (formats[i] | GST_SEEK_METHOD_SET | flush, desired_offset);
/* do the seekk */
if (gst_pad_send_event (GST_PAD_PEER (swfdec->sinkpad), seek_event)) {
/* seek worked, we're done, loop will exit */
res = TRUE;
}
}
/* at this point, either the seek worked or res == FALSE */
}
break;
}
default:
res = FALSE;
break;
}
gst_event_unref (event);
return res;
}
#endif
static GstElementStateReturn
gst_swfdec_change_state (GstElement *element)
{
GstSwfdec *swfdec = GST_SWFDEC (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
break;
case GST_STATE_READY_TO_PAUSED:
{
//gst_swfdec_vo_open (swfdec);
//swf_init (swfdec->decoder, swfdec->accel, swfdec->vo);
//swfdec->decoder->is_sequence_needed = 1;
//swfdec->decoder->frame_rate_code = 0;
swfdec->timestamp = 0;
swfdec->pool = NULL;
swfdec->closed = FALSE;
/* reset the initial video state */
swfdec->format = -1;
swfdec->width = -1;
swfdec->height = -1;
swfdec->first = TRUE;
break;
}
case GST_STATE_PAUSED_TO_PLAYING:
/* try to get a bufferpool */
#if 0
swfdec->pool = gst_pad_get_bufferpool (swfdec->videopad);
if (swfdec->pool)
GST_INFO (GST_CAT_PLUGIN_INFO, "got pool %p", swfdec->pool);
#endif
break;
case GST_STATE_PLAYING_TO_PAUSED:
/* need to clear things we get from other plugins, since we could be reconnected */
if (swfdec->pool) {
gst_buffer_pool_unref (swfdec->pool);
swfdec->pool = NULL;
}
break;
case GST_STATE_PAUSED_TO_READY:
/* if we are not closed by an EOS event do so now, this cen send a few frames but
* we are prepared to not really send them (see above) */
if (!swfdec->closed) {
/*swf_close (swfdec->decoder); */
swfdec->closed = TRUE;
}
//gst_swfdec_vo_destroy (swfdec);
break;
case GST_STATE_READY_TO_NULL:
break;
default:
break;
}
GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
static void
gst_swfdec_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstSwfdec *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_SWFDEC (object));
src = GST_SWFDEC (object);
switch (prop_id) {
default:
break;
}
}
static void
gst_swfdec_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstSwfdec *swfdec;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_SWFDEC (object));
swfdec = GST_SWFDEC (object);
switch (prop_id) {
case ARG_FRAME_RATE:
g_value_set_float (value, swfdec->frame_rate);
break;
default:
break;
}
}
static GstCaps *
swf_type_find(GstBuffer *buf, gpointer private)
{
gchar *data = GST_BUFFER_DATA(buf);
if((data[0] != 'F' && data[0] != 'C') ||
data[1] != 'W' || data[2] != 'S')return NULL;
return gst_caps_new("swf_type_find","application/x-shockwave-flash",
NULL);
}
static GstTypeDefinition swftype_definition =
{ "swfdecode/x-shockwave-flash", "application/x-shockwave-flash",
".swf .swfl", swf_type_find };
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *factory;
GstTypeFactory *type;
/* create an elementfactory for the swfdec element */
factory = gst_element_factory_new("swfdec",GST_TYPE_SWFDEC,
&gst_swfdec_details);
g_return_val_if_fail(factory != NULL, FALSE);
gst_element_factory_set_rank (factory, GST_ELEMENT_RANK_PRIMARY);
gst_element_factory_add_pad_template (factory,
GST_PAD_TEMPLATE_GET (video_template_factory));
gst_element_factory_add_pad_template (factory,
GST_PAD_TEMPLATE_GET (audio_template_factory));
gst_element_factory_add_pad_template (factory,
GST_PAD_TEMPLATE_GET (sink_template_factory));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
type = gst_type_factory_new(&swftype_definition);
gst_plugin_add_feature(plugin, GST_PLUGIN_FEATURE(type));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"swfdec",
plugin_init
};
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