static gboolean
gst_base_video_decoder_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstBaseVideoDecoder *base_video_decoder;
GstBaseVideoDecoderClass *base_video_decoder_class;
GstStructure *structure;
const GValue *codec_data;
GstVideoState *state;
gboolean ret = TRUE;
base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
base_video_decoder_class =
GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
GST_DEBUG ("setcaps %" GST_PTR_FORMAT, caps);
state = &base_video_decoder->state;
if (state->codec_data) {
gst_buffer_unref (state->codec_data);
}
memset (state, 0, sizeof (GstVideoState));
structure = gst_caps_get_structure (caps, 0);
gst_video_format_parse_caps (caps, NULL, &state->width, &state->height);
gst_video_parse_caps_framerate (caps, &state->fps_n, &state->fps_d);
gst_video_parse_caps_pixel_aspect_ratio (caps, &state->par_n, &state->par_d);
#if 0
/* requires 0.10.23 */
state->have_interlaced =
gst_video_format_parse_caps_interlaced (caps, &state->interlaced);
#else
state->have_interlaced = gst_structure_get_boolean (structure,
"interlaced", &state->interlaced);
#endif
codec_data = gst_structure_get_value (structure, "codec_data");
if (codec_data && G_VALUE_TYPE (codec_data) == GST_TYPE_BUFFER) {
state->codec_data = gst_value_get_buffer (codec_data);
}
if (base_video_decoder_class->start) {
ret = base_video_decoder_class->start (base_video_decoder);
}
g_object_unref (base_video_decoder);
return ret;
}
gboolean AVSC_CC
gst_avsynth_buf_pad_caps_to_vi (GstBuffer *buf, GstPad *pad, GstCaps *caps, AVS_VideoInfo *vi)
{
gboolean ret = TRUE;
GstVideoFormat vf;
gint fps_num = 0, fps_den = 0;
gint width = 0, height = 0;
gboolean interlaced;
gint64 duration = -1;
ret = gst_video_format_parse_caps (caps, &vf, &width, &height);
if (!ret)
{
GST_ERROR ("Failed to convert caps to videoinfo - can't get format/width/height");
goto cleanup;
}
ret = gst_video_format_parse_caps_interlaced (caps, &interlaced);
if (!ret)
{
GST_ERROR ("Failed to convert caps to videoinfo - can't get interlaced state");
goto cleanup;
}
ret = gst_video_parse_caps_framerate (caps, &fps_num, &fps_den);
if (!ret)
{
GST_ERROR ("Failed to convert caps to videoinfo - can't get fps");
goto cleanup;
}
switch (vf)
{
case GST_VIDEO_FORMAT_I420:
vi->pixel_type = AVS_CS_I420;
break;
case GST_VIDEO_FORMAT_YUY2:
vi->pixel_type = AVS_CS_YUY2;
break;
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
vi->pixel_type = AVS_CS_BGR32;
break;
case GST_VIDEO_FORMAT_BGR:
vi->pixel_type = AVS_CS_BGR24;
break;
case GST_VIDEO_FORMAT_YV12:
vi->pixel_type = AVS_CS_YV12;
break;
default:
ret = FALSE;
}
if (interlaced)
{
vi->image_type = AVS_IT_FIELDBASED;
if (buf)
{
if (GST_BUFFER_FLAG_IS_SET (buf, GST_VIDEO_BUFFER_TFF))
vi->image_type |= AVS_IT_TFF;
else
/* Apparently, GStreamer doesn't know what "unknown field order" is.
* If you get wrong field order - file a bugreport against the source
* element (or maybe a decoder?). Field order should be known.
*/
vi->image_type |= AVS_IT_BFF;
}
}
vi->fps_numerator = fps_num;
vi->fps_denominator = fps_den;
vi->width = width;
vi->height = height;
duration = gst_avsynth_query_duration (pad, vi);
vi->num_frames = duration;
cleanup:
return ret;
}
static gboolean
gst_interlace_setcaps (GstPad * pad, GstCaps * caps)
{
GstInterlace *interlace;
gboolean ret;
int width, height;
GstVideoFormat format;
gboolean interlaced = TRUE;
int fps_n, fps_d;
GstPad *otherpad;
GstCaps *othercaps;
const PulldownFormat *pdformat;
interlace = GST_INTERLACE (gst_pad_get_parent (pad));
otherpad =
(pad == interlace->srcpad) ? interlace->sinkpad : interlace->srcpad;
ret = gst_video_format_parse_caps (caps, &format, &width, &height);
gst_video_format_parse_caps_interlaced (caps, &interlaced);
ret &= gst_video_parse_caps_framerate (caps, &fps_n, &fps_d);
if (!ret)
goto error;
othercaps = gst_caps_copy (caps);
pdformat = &formats[interlace->pattern];
if (pad == interlace->srcpad) {
gst_caps_set_simple (othercaps, "interlaced", G_TYPE_BOOLEAN, FALSE, NULL);
gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION,
fps_n * pdformat->ratio_d, fps_d * pdformat->ratio_n, NULL);
} else {
gst_caps_set_simple (othercaps, "interlaced", G_TYPE_BOOLEAN, TRUE, NULL);
gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION,
fps_n * pdformat->ratio_n, fps_d * pdformat->ratio_d, NULL);
}
ret = gst_pad_set_caps (otherpad, othercaps);
if (!ret)
goto error;
interlace->format = format;
interlace->width = width;
interlace->height = height;
interlace->phase_index = interlace->pattern_offset;
if (pad == interlace->sinkpad) {
gst_caps_replace (&interlace->srccaps, othercaps);
interlace->src_fps_n = fps_n * pdformat->ratio_n;
interlace->src_fps_d = fps_d * pdformat->ratio_d;
} else {
gst_caps_replace (&interlace->srccaps, caps);
interlace->src_fps_n = fps_n;
interlace->src_fps_d = fps_d;
}
error:
g_object_unref (interlace);
return ret;
}
/* Parses a set of caps and tags in st and populates a GstDiscovererStreamInfo
* structure (parent, if !NULL, otherwise it allocates one)
*/
static GstDiscovererStreamInfo *
collect_information (GstDiscoverer * dc, const GstStructure * st,
GstDiscovererStreamInfo * parent)
{
GstCaps *caps;
GstStructure *caps_st, *tags_st;
const gchar *name;
int tmp, tmp2;
guint utmp;
gboolean btmp;
if (!st || !gst_structure_id_has_field (st, _CAPS_QUARK)) {
GST_WARNING ("Couldn't find caps !");
if (parent)
return parent;
else
return (GstDiscovererStreamInfo *)
gst_mini_object_new (GST_TYPE_DISCOVERER_STREAM_INFO);
}
gst_structure_id_get (st, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL);
caps_st = gst_caps_get_structure (caps, 0);
name = gst_structure_get_name (caps_st);
if (g_str_has_prefix (name, "audio/")) {
GstDiscovererAudioInfo *info;
if (parent)
info = (GstDiscovererAudioInfo *) parent;
else {
info = (GstDiscovererAudioInfo *)
gst_mini_object_new (GST_TYPE_DISCOVERER_AUDIO_INFO);
info->parent.caps = caps;
}
if (gst_structure_get_int (caps_st, "rate", &tmp))
info->sample_rate = (guint) tmp;
if (gst_structure_get_int (caps_st, "channels", &tmp))
info->channels = (guint) tmp;
if (gst_structure_get_int (caps_st, "depth", &tmp))
info->depth = (guint) tmp;
if (gst_structure_id_has_field (st, _TAGS_QUARK)) {
gst_structure_id_get (st, _TAGS_QUARK,
GST_TYPE_STRUCTURE, &tags_st, NULL);
if (gst_structure_get_uint (tags_st, GST_TAG_BITRATE, &utmp) ||
gst_structure_get_uint (tags_st, GST_TAG_NOMINAL_BITRATE, &utmp))
info->bitrate = utmp;
if (gst_structure_get_uint (tags_st, GST_TAG_MAXIMUM_BITRATE, &utmp))
info->max_bitrate = utmp;
/* FIXME: Is it worth it to remove the tags we've parsed? */
info->parent.tags = gst_tag_list_merge (info->parent.tags,
(GstTagList *) tags_st, GST_TAG_MERGE_REPLACE);
gst_structure_free (tags_st);
}
return (GstDiscovererStreamInfo *) info;
} else if (g_str_has_prefix (name, "video/") ||
g_str_has_prefix (name, "image/")) {
GstDiscovererVideoInfo *info;
GstVideoFormat format;
if (parent)
info = (GstDiscovererVideoInfo *) parent;
else {
info = (GstDiscovererVideoInfo *)
gst_mini_object_new (GST_TYPE_DISCOVERER_VIDEO_INFO);
info->parent.caps = caps;
}
if (gst_video_format_parse_caps (caps, &format, &tmp, &tmp2)) {
info->width = (guint) tmp;
info->height = (guint) tmp2;
}
if (gst_structure_get_int (caps_st, "depth", &tmp))
info->depth = (guint) tmp;
if (gst_video_parse_caps_pixel_aspect_ratio (caps, &tmp, &tmp2)) {
info->par_num = tmp;
info->par_denom = tmp2;
}
if (gst_video_parse_caps_framerate (caps, &tmp, &tmp2)) {
info->framerate_num = tmp;
info->framerate_denom = tmp2;
}
if (gst_video_format_parse_caps_interlaced (caps, &btmp))
info->interlaced = btmp;
if (gst_structure_id_has_field (st, _TAGS_QUARK)) {
gst_structure_id_get (st, _TAGS_QUARK,
GST_TYPE_STRUCTURE, &tags_st, NULL);
if (gst_structure_get_uint (tags_st, GST_TAG_BITRATE, &utmp) ||
gst_structure_get_uint (tags_st, GST_TAG_NOMINAL_BITRATE, &utmp))
info->bitrate = utmp;
if (gst_structure_get_uint (tags_st, GST_TAG_MAXIMUM_BITRATE, &utmp))
info->max_bitrate = utmp;
/* FIXME: Is it worth it to remove the tags we've parsed? */
info->parent.tags = gst_tag_list_merge (info->parent.tags,
(GstTagList *) tags_st, GST_TAG_MERGE_REPLACE);
gst_structure_free (tags_st);
}
return (GstDiscovererStreamInfo *) info;
} else {
/* None of the above - populate what information we can */
GstDiscovererStreamInfo *info;
if (parent)
info = parent;
else {
info = (GstDiscovererStreamInfo *)
gst_mini_object_new (GST_TYPE_DISCOVERER_STREAM_INFO);
info->caps = caps;
}
if (gst_structure_id_get (st, _TAGS_QUARK,
GST_TYPE_STRUCTURE, &tags_st, NULL)) {
info->tags = gst_tag_list_merge (info->tags, (GstTagList *) tags_st,
GST_TAG_MERGE_REPLACE);
gst_structure_free (tags_st);
}
return info;
}
}
