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openh264dec: Fix input state handling and propagation of upstream caps fields

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This commit is contained in:
Sebastian Dröge 2014-10-02 13:49:14 +03:00
parent cf4ec9b04e
commit 18e7540263
1 changed files with 21 additions and 20 deletions
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41
ext/openh264/gstopenh264dec.cpp
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@ -73,10 +73,8 @@ struct _GstOpenh264DecPrivate
{
ISVCDecoder *decoder;
GstH264NalParser *nal_parser;
guint width;
guint height;
guint fps_n;
guint fps_d;
GstVideoCodecState *input_state;
guint width, height;
};
/* pad templates */
@ -89,7 +87,7 @@ static GstStaticPadTemplate gst_openh264dec_sink_template = GST_STATIC_PAD_TEMPL
static GstStaticPadTemplate gst_openh264dec_src_template = GST_STATIC_PAD_TEMPLATE("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS(GST_VIDEO_CAPS_MAKE("{ I420 }")));
GST_STATIC_CAPS(GST_VIDEO_CAPS_MAKE("I420")));
/* class initialization */
@ -129,12 +127,9 @@ static void gst_openh264dec_init(GstOpenh264Dec *openh264dec)
openh264dec->priv = GST_OPENH264DEC_GET_PRIVATE(openh264dec);
openh264dec->priv->nal_parser = NULL;
openh264dec->priv->decoder = NULL;
openh264dec->priv->width = 0;
openh264dec->priv->height = 0;
openh264dec->priv->fps_n = 0;
openh264dec->priv->fps_d = 1;
gst_video_decoder_set_packetized(GST_VIDEO_DECODER(openh264dec), TRUE);
gst_video_decoder_set_needs_format(GST_VIDEO_DECODER(openh264dec), TRUE);
}
void gst_openh264dec_set_property(GObject *object, guint property_id,
@ -203,6 +198,12 @@ static gboolean gst_openh264dec_stop(GstVideoDecoder *decoder)
WelsDestroyDecoder(openh264dec->priv->decoder);
openh264dec->priv->decoder = NULL;
if (openh264dec->priv->input_state) {
gst_video_codec_state_unref (openh264dec->priv->input_state);
openh264dec->priv->input_state = NULL;
}
openh264dec->priv->width = openh264dec->priv->height = 0;
return ret;
}
@ -220,6 +221,12 @@ static gboolean gst_openh264dec_set_format(GstVideoDecoder *decoder, GstVideoCod
GST_DEBUG_OBJECT(openh264dec, "openh264_dec_set_format called, caps: %" GST_PTR_FORMAT, state->caps);
if (openh264dec->priv->input_state) {
gst_video_codec_state_unref (openh264dec->priv->input_state);
openh264dec->priv->input_state = NULL;
}
openh264dec->priv->input_state = gst_video_codec_state_ref (state);
caps_data = gst_caps_get_structure(state->caps, 0);
sprop_parameter_sets = gst_structure_get_string(caps_data, "sprop-parameter-sets");
if (!sprop_parameter_sets) {
@ -330,8 +337,8 @@ static GstFlowReturn gst_openh264dec_handle_frame(GstVideoDecoder *decoder, GstV
parser_result = gst_h264_parser_parse_sps(openh264dec->priv->nal_parser, &nalu, &sps, TRUE);
if (parser_result == GST_H264_PARSER_OK) {
GST_DEBUG_OBJECT(openh264dec, "Got SPS, fps_n: %u fps_d: %u", sps.fps_num, sps.fps_den);
openh264dec->priv->fps_n = sps.fps_num ? sps.fps_num : 30;
openh264dec->priv->fps_d = sps.fps_num ? sps.fps_den : 1;
openh264dec->priv->input_state->info.fps_n = sps.fps_num ? sps.fps_num : 30;
openh264dec->priv->input_state->info.fps_d = sps.fps_num ? sps.fps_den : 1;
} else {
GST_WARNING_OBJECT(openh264dec, "Failed to parse SPS, parser result: %u", parser_result);
}
@ -357,24 +364,18 @@ static GstFlowReturn gst_openh264dec_handle_frame(GstVideoDecoder *decoder, GstV
actual_width = dst_buf_info.UsrData.sSystemBuffer.iWidth;
actual_height = dst_buf_info.UsrData.sSystemBuffer.iHeight;
if (actual_width != openh264dec->priv->width || actual_height != openh264dec->priv->height) {
if (!gst_pad_has_current_caps (GST_VIDEO_DECODER_SRC_PAD (openh264dec)) || actual_width != openh264dec->priv->width || actual_height != openh264dec->priv->height) {
state = gst_video_decoder_set_output_state(decoder,
GST_VIDEO_FORMAT_I420,
actual_width,
actual_height,
NULL);
openh264dec->priv->input_state);
openh264dec->priv->width = actual_width;
openh264dec->priv->height = actual_height;
state->caps = gst_caps_new_simple("video/x-raw",
"format", G_TYPE_STRING, "I420",
"width", G_TYPE_INT, actual_width,
"height", G_TYPE_INT, actual_height,
"framerate", GST_TYPE_FRACTION, openh264dec->priv->fps_n, openh264dec->priv->fps_d,
NULL);
if (!gst_video_decoder_negotiate(decoder)) {
GST_ERROR_OBJECT(openh264dec, "Failed to negotiate with downstream elements");
return GST_FLOW_NOT_NEGOTIATED;
}
} else {
state = gst_video_decoder_get_output_state(decoder);