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Second attempt at committing a working dvdec element.

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Original commit message from CVS:
Second attempt at committing a working dvdec element.
This commit is contained in:
Jan Schmidt 2004-02-07 13:04:09 +00:00
parent f1d84d8ae7
commit dd989ba993
2 changed files with 164 additions and 106 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2004-02-07 Jan Schmidt <thaytan@mad.scientist.com>
* ext/dv/gstdvdec.c: (gst_dvdec_init), (gst_dvdec_src_convert),
(gst_dvdec_sink_convert), (gst_dvdec_handle_sink_event),
(gst_dvdec_video_getcaps), (gst_dvdec_video_link),
(gst_dvdec_loop), (gst_dvdec_change_state):
Second attempt at committing a working dvdec element.
2004-02-06 David Schleef <ds@schleef.org>
Build fixes for OS X: (see #129600)

262
ext/dv/gstdvdec.c
View file

@ -93,12 +93,12 @@ GST_STATIC_PAD_TEMPLATE
"format = (fourcc) YUY2, "
"width = (int) 720, "
"height = (int) { "
G_STRINGIFY(NTSC_HEIGHT) ", "
G_STRINGIFY(PAL_HEIGHT)
G_STRINGIFY(NTSC_HEIGHT) ", "
G_STRINGIFY(PAL_HEIGHT)
" }, "
"framerate = (double) { "
G_STRINGIFY(PAL_FRAMERATE) ", "
G_STRINGIFY(NTSC_FRAMERATE)
G_STRINGIFY(PAL_FRAMERATE) ", "
G_STRINGIFY(NTSC_FRAMERATE)
" }; "
"video/x-raw-rgb, "
@ -132,7 +132,7 @@ GST_STATIC_PAD_TEMPLATE
" }, "
"framerate = (double) { "
G_STRINGIFY(PAL_FRAMERATE) ", "
G_STRINGIFY(NTSC_FRAMERATE)
G_STRINGIFY(NTSC_FRAMERATE)
" }"
)
);
@ -186,6 +186,10 @@ static gboolean gst_dvdec_sink_convert (GstPad *pad, GstFormat src_format, gi
static gboolean gst_dvdec_src_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
static GstPadLinkReturn gst_dvdec_video_link (GstPad *pad,
const GstCaps *caps);
static GstCaps* gst_dvdec_video_getcaps (GstPad *pad);
static const GstEventMask*
gst_dvdec_get_event_masks (GstPad *pad);
static gboolean gst_dvdec_handle_src_event (GstPad *pad, GstEvent *event);
@ -302,6 +306,7 @@ static void
gst_dvdec_init(GstDVDec *dvdec)
{
gint i;
dvdec->found_header = FALSE;
dvdec->sinkpad = gst_pad_new_from_template (gst_static_pad_template_get (&sink_temp), "sink");
gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->sinkpad);
@ -310,22 +315,25 @@ gst_dvdec_init(GstDVDec *dvdec)
gst_pad_set_formats_function (dvdec->sinkpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_formats));
dvdec->videosrcpad = gst_pad_new_from_template (gst_static_pad_template_get (&video_src_temp), "video");
gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->videosrcpad);
gst_pad_set_query_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_src_query));
gst_pad_set_query_type_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_src_query_types));
gst_pad_set_event_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_handle_src_event));
gst_pad_set_event_mask_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_event_masks));
gst_pad_set_convert_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_src_convert));
gst_pad_set_formats_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_formats));
gst_pad_set_getcaps_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_video_getcaps));
gst_pad_set_link_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_video_link));
gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->videosrcpad);
dvdec->audiosrcpad = gst_pad_new_from_template (gst_static_pad_template_get (&audio_src_temp), "audio");
gst_element_add_pad(GST_ELEMENT(dvdec),dvdec->audiosrcpad);
gst_pad_set_query_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_src_query));
gst_pad_set_query_type_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_src_query_types));
gst_pad_set_event_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_handle_src_event));
gst_pad_set_event_mask_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_event_masks));
gst_pad_set_convert_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_src_convert));
gst_pad_set_formats_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_formats));
gst_pad_use_explicit_caps (dvdec->audiosrcpad);
gst_element_add_pad (GST_ELEMENT(dvdec), dvdec->audiosrcpad);
gst_element_set_loop_function (GST_ELEMENT (dvdec), gst_dvdec_loop);
@ -335,11 +343,14 @@ gst_dvdec_init(GstDVDec *dvdec)
dvdec->need_discont = FALSE;
dvdec->framerate = 0;
dvdec->height = 0;
dvdec->frequency = 0;
dvdec->channels = 0;
dvdec->clamp_luma = FALSE;
dvdec->clamp_chroma = FALSE;
dvdec->quality = DV_QUALITY_BEST;
dvdec->loop = FALSE;
for (i = 0; i <4; i++) {
dvdec->audio_buffers[i] = (gint16 *)g_malloc (DV_AUDIO_MAX_SAMPLES * sizeof (gint16));
}
@ -397,7 +408,7 @@ gst_dvdec_src_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
/* fallthrough */
case GST_FORMAT_DEFAULT:
if (pad == dvdec->videosrcpad)
*dest_value = src_value * dvdec->framerate * scale / (GST_SECOND*100);
*dest_value = src_value * dvdec->framerate * scale / GST_SECOND;
else if (pad == dvdec->audiosrcpad)
*dest_value = src_value * dvdec->decoder->audio->frequency * scale / GST_SECOND;
break;
@ -432,7 +443,7 @@ gst_dvdec_sink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
/* get frame number */
frame = src_value / dvdec->length;
*dest_value = (frame * GST_SECOND * 100) / dvdec->framerate;
*dest_value = (frame * GST_SECOND) / dvdec->framerate;
break;
}
default:
@ -445,7 +456,7 @@ gst_dvdec_sink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
{
guint64 frame;
/* calculate the frame */
frame = src_value * dvdec->framerate / (GST_SECOND*100);
frame = src_value * dvdec->framerate / GST_SECOND;
/* calculate the offset */
*dest_value = frame * dvdec->length;
break;
@ -548,9 +559,6 @@ gst_dvdec_handle_sink_event (GstDVDec *dvdec)
type = event? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
switch (type) {
case GST_EVENT_EOS:
gst_pad_event_default (dvdec->sinkpad, event);
return TRUE;
case GST_EVENT_FLUSH:
break;
case GST_EVENT_DISCONTINUOUS:
@ -579,7 +587,7 @@ gst_dvdec_handle_sink_event (GstDVDec *dvdec)
break;
}
default:
g_warning ("unhandled event %d\n", type);
return gst_pad_event_default (dvdec->sinkpad, event);
break;
}
gst_event_unref (event);
@ -657,6 +665,84 @@ gst_dvdec_handle_src_event (GstPad *pad, GstEvent *event)
return res;
}
static GstCaps*
gst_dvdec_video_getcaps (GstPad *pad)
{
GstDVDec *dvdec;
GstCaps *caps;
GstPadTemplate *src_pad_template;
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
src_pad_template = gst_static_pad_template_get (&video_src_temp);
caps = gst_caps_copy(gst_pad_template_get_caps (src_pad_template));
if (dvdec->found_header)
{
int i;
/* set the height */
for (i = 0; i < gst_caps_get_size (caps); i++)
{
GstStructure *structure = gst_caps_get_structure (caps, i);
gst_structure_set(structure,
"height", G_TYPE_INT, dvdec->height,
"framerate", G_TYPE_DOUBLE, dvdec->framerate, NULL
);
}
}
return caps;
}
static GstPadLinkReturn
gst_dvdec_video_link (GstPad *pad, const GstCaps *caps)
{
GstDVDec *dvdec;
GstStructure *structure;
guint32 fourcc;
gint height;
gdouble framerate;
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
/* if we did not find a header yet, return delayed */
if (!dvdec->found_header)
{
return GST_PAD_LINK_DELAYED;
}
structure = gst_caps_get_structure (caps, 0);
/* it worked, try to find what it was again */
if (!gst_structure_get_fourcc (structure, "format", &fourcc) ||
!gst_structure_get_int (structure, "height", &height) ||
!gst_structure_get_double (structure, "framerate", &framerate))
return GST_PAD_LINK_REFUSED;
if ((height != dvdec->height) || (framerate != dvdec->framerate))
return GST_PAD_LINK_REFUSED;
if (fourcc == GST_STR_FOURCC ("RGB ")) {
gint bpp;
gst_structure_get_int (structure, "bpp", &bpp);
if (bpp == 24) {
dvdec->space = e_dv_color_rgb;
dvdec->bpp = 3;
}
else {
dvdec->space = e_dv_color_bgr0;
dvdec->bpp = 4;
}
}
else {
dvdec->space = e_dv_color_yuv;
dvdec->bpp = 2;
}
return GST_PAD_LINK_OK;
}
static void
gst_dvdec_push (GstDVDec *dvdec, GstBuffer *outbuf, GstPad *pad, GstClockTime ts)
{
@ -690,7 +776,7 @@ gst_dvdec_loop (GstElement *element)
guint32 length, got_bytes;
GstFormat format;
guint64 ts;
gfloat fps;
gdouble fps;
dvdec = GST_DVDEC (element);
@ -700,15 +786,33 @@ gst_dvdec_loop (GstElement *element)
gst_dvdec_handle_sink_event (dvdec);
return;
}
dv_parse_header (dvdec->decoder, inframe);
/* after parsing the header we know the size of the data */
if (dv_parse_header (dvdec->decoder, inframe) < 0)
{
GST_ELEMENT_ERROR (dvdec, STREAM, DECODE, (NULL), (NULL));
return;
}
/* after parsing the header we know the length of the data */
dvdec->PAL = dv_system_50_fields (dvdec->decoder);
dvdec->framerate = (dvdec->PAL ? 2500 : 2997);
dvdec->found_header = TRUE;
fps = (dvdec->PAL ? PAL_FRAMERATE : NTSC_FRAMERATE);
dvdec->height = height = (dvdec->PAL ? PAL_HEIGHT : NTSC_HEIGHT);
height = (dvdec->PAL ? PAL_HEIGHT : NTSC_HEIGHT);
length = (dvdec->PAL ? PAL_BUFFER : NTSC_BUFFER);
if ((dvdec->framerate != fps) ||
(dvdec->height != height))
{
dvdec->height = height;
dvdec->framerate = fps;
if (GST_PAD_LINK_FAILED (gst_pad_renegotiate (dvdec->videosrcpad)))
{
GST_ELEMENT_ERROR (dvdec, CORE, NEGOTIATION, (NULL), (NULL));
return;
}
}
if (length != dvdec->length) {
dvdec->length = length;
gst_bytestream_size_hint (dvdec->bs, length);
@ -721,77 +825,12 @@ gst_dvdec_loop (GstElement *element)
return;
}
/* if we did not negotiate yet, do it now */
if (!GST_PAD_CAPS (dvdec->videosrcpad)) {
GstCaps *caps = NULL;
GstCaps *negotiated_caps = NULL;
GstPadTemplate *src_pad_template;
int i;
/* try to fix our height */
src_pad_template = gst_static_pad_template_get (&video_src_temp);
caps = gst_caps_copy(gst_pad_template_get_caps (src_pad_template));
for (i = 0; i < gst_caps_get_size (caps); i++)
{
GstStructure *structure = gst_caps_get_structure (caps, i);
gst_structure_set(structure,
"height", G_TYPE_INT, height,
"framerate", G_TYPE_INT, fps, NULL
);
}
for (i=0; i < gst_caps_get_size(caps); i++) {
GstStructure *to_try_struct = gst_caps_get_structure (caps, i);
GstCaps *try_caps =
gst_caps_new_full (gst_structure_copy(to_try_struct), NULL);
/* try each format */
if (gst_pad_try_set_caps (dvdec->videosrcpad, try_caps) > 0) {
negotiated_caps = try_caps;
break;
}
gst_caps_free(try_caps);
}
gst_caps_free (caps);
/* Check if we negotiated caps successfully */
if (negotiated_caps != NULL) {
GstStructure *structure = gst_caps_get_structure (negotiated_caps, 0);
guint32 fourcc;
/* it worked, try to find what it was again */
gst_structure_get_fourcc (structure, "format", &fourcc);
if (fourcc == GST_STR_FOURCC ("RGB ")) {
gint bpp;
gst_structure_get_int (structure, "bpp", &bpp);
if (bpp == 24) {
dvdec->space = e_dv_color_rgb;
dvdec->bpp = 3;
}
else {
dvdec->space = e_dv_color_bgr0;
dvdec->bpp = 4;
}
}
else {
dvdec->space = e_dv_color_yuv;
dvdec->bpp = 2;
}
} else {
GST_ELEMENT_ERROR (element, CORE, NEGOTIATION, (NULL), (NULL));
return;
}
}
format = GST_FORMAT_TIME;
gst_pad_query (dvdec->videosrcpad, GST_QUERY_POSITION, &format, &ts);
dvdec->next_ts += (GST_SECOND*100) / dvdec->framerate;
dvdec->next_ts += GST_SECOND / dvdec->framerate;
dv_parse_packs (dvdec->decoder, GST_BUFFER_DATA (buf));
if (GST_PAD_IS_LINKED (dvdec->audiosrcpad)) {
gint16 *a_ptr;
@ -799,27 +838,37 @@ gst_dvdec_loop (GstElement *element)
dv_decode_full_audio (dvdec->decoder, GST_BUFFER_DATA (buf), dvdec->audio_buffers);
/* if we did not negotiate yet, do it now */
if (!GST_PAD_CAPS (dvdec->audiosrcpad)) {
gst_pad_try_set_caps (dvdec->audiosrcpad,
gst_caps_new_simple (
"audio/x-raw-int",
"rate", G_TYPE_INT, dvdec->decoder->audio->frequency,
"depth", G_TYPE_INT, 16,
"width", G_TYPE_INT, 16,
"signed", G_TYPE_BOOLEAN, TRUE,
"channels", G_TYPE_INT, dvdec->decoder->audio->num_channels,
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN
));
if ((dvdec->decoder->audio->frequency != dvdec->frequency) ||
(dvdec->decoder->audio->num_channels != dvdec->channels))
{
if (!gst_pad_set_explicit_caps (dvdec->audiosrcpad,
gst_caps_new_simple (
"audio/x-raw-int",
"rate", G_TYPE_INT, dvdec->decoder->audio->frequency,
"depth", G_TYPE_INT, 16,
"width", G_TYPE_INT, 16,
"signed", G_TYPE_BOOLEAN, TRUE,
"channels", G_TYPE_INT, dvdec->decoder->audio->num_channels,
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN,
NULL
)))
{
gst_buffer_unref (buf);
GST_ELEMENT_ERROR (dvdec, CORE, NEGOTIATION, (NULL), (NULL));
return;
}
dvdec->frequency = dvdec->decoder->audio->frequency;
dvdec->channels = dvdec->decoder->audio->num_channels;
}
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = dvdec->decoder->audio->samples_this_frame *
sizeof (gint16) * dvdec->decoder->audio->num_channels;
sizeof (gint16) * dvdec->decoder->audio->num_channels;
GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
a_ptr = (gint16 *) GST_BUFFER_DATA (outbuf);
for (i = 0; i < dvdec->decoder->audio->samples_this_frame; i++) {
for (j = 0; j < dvdec->decoder->audio->num_channels; j++) {
*(a_ptr++) = dvdec->audio_buffers[j][i];
@ -888,6 +937,7 @@ gst_dvdec_change_state (GstElement *element)
case GST_STATE_PAUSED_TO_READY:
dv_decoder_free (dvdec->decoder);
dvdec->decoder = NULL;
dvdec->found_header = FALSE;
gst_bytestream_destroy (dvdec->bs);
break;
case GST_STATE_READY_TO_NULL: