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h264parse: reset the parser information when caps changes

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This prevents it from going into passthrough after receiving 2
byte-stream caps (different ones) as it would keep the have_pps and
have_sps set to true and would just go into passthrough without
updating its caps.

This patch makes it reset its stream information to restart properly
when new caps are received.

https://bugzilla.gnome.org/show_bug.cgi?id=745409
This commit is contained in:
Thiago Santos 2015-03-03 11:42:09 -03:00
parent 87f8d7890c
commit 14f6fcdbd8
1 changed files with 33 additions and 16 deletions
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49
gst/videoparsers/gsth264parse.c
View file

@ -195,8 +195,10 @@ gst_h264_parse_reset_frame (GstH264Parse * h264parse)
}
static void
gst_h264_parse_reset (GstH264Parse * h264parse)
gst_h264_parse_reset_stream_info (GstH264Parse * h264parse)
{
gint i;
h264parse->width = 0;
h264parse->height = 0;
h264parse->fps_num = 0;
@ -205,19 +207,32 @@ gst_h264_parse_reset (GstH264Parse * h264parse)
h264parse->upstream_par_d = -1;
h264parse->parsed_par_n = 0;
h264parse->parsed_par_d = 0;
gst_buffer_replace (&h264parse->codec_data, NULL);
gst_buffer_replace (&h264parse->codec_data_in, NULL);
h264parse->nal_length_size = 4;
h264parse->packetized = FALSE;
h264parse->transform = FALSE;
h264parse->have_pps = FALSE;
h264parse->have_sps = FALSE;
h264parse->align = GST_H264_PARSE_ALIGN_NONE;
h264parse->format = GST_H264_PARSE_FORMAT_NONE;
h264parse->last_report = GST_CLOCK_TIME_NONE;
h264parse->transform = FALSE;
h264parse->nal_length_size = 4;
h264parse->packetized = FALSE;
h264parse->push_codec = FALSE;
h264parse->have_pps = FALSE;
h264parse->have_sps = FALSE;
gst_buffer_replace (&h264parse->codec_data, NULL);
gst_buffer_replace (&h264parse->codec_data_in, NULL);
gst_h264_parse_reset_frame (h264parse);
for (i = 0; i < GST_H264_MAX_SPS_COUNT; i++)
gst_buffer_replace (&h264parse->sps_nals[i], NULL);
for (i = 0; i < GST_H264_MAX_PPS_COUNT; i++)
gst_buffer_replace (&h264parse->pps_nals[i], NULL);
}
static void
gst_h264_parse_reset (GstH264Parse * h264parse)
{
h264parse->last_report = GST_CLOCK_TIME_NONE;
h264parse->dts = GST_CLOCK_TIME_NONE;
h264parse->ts_trn_nb = GST_CLOCK_TIME_NONE;
@ -230,7 +245,7 @@ gst_h264_parse_reset (GstH264Parse * h264parse)
h264parse->discont = FALSE;
gst_h264_parse_reset_frame (h264parse);
gst_h264_parse_reset_stream_info (h264parse);
}
static gboolean
@ -257,17 +272,11 @@ gst_h264_parse_start (GstBaseParse * parse)
static gboolean
gst_h264_parse_stop (GstBaseParse * parse)
{
guint i;
GstH264Parse *h264parse = GST_H264_PARSE (parse);
GST_DEBUG_OBJECT (parse, "stop");
gst_h264_parse_reset (h264parse);
for (i = 0; i < GST_H264_MAX_SPS_COUNT; i++)
gst_buffer_replace (&h264parse->sps_nals[i], NULL);
for (i = 0; i < GST_H264_MAX_PPS_COUNT; i++)
gst_buffer_replace (&h264parse->pps_nals[i], NULL);
gst_h264_nal_parser_free (h264parse->nalparser);
return TRUE;
@ -2079,12 +2088,20 @@ gst_h264_parse_set_caps (GstBaseParse * parse, GstCaps * caps)
guint format, align, off;
GstH264NalUnit nalu;
GstH264ParserResult parseres;
GstCaps *old_caps;
h264parse = GST_H264_PARSE (parse);
/* reset */
h264parse->push_codec = FALSE;
old_caps = gst_pad_get_current_caps (GST_BASE_PARSE_SINK_PAD (parse));
if (old_caps) {
if (!gst_caps_is_equal (old_caps, caps))
gst_h264_parse_reset_stream_info (h264parse);
gst_caps_unref (old_caps);
}
str = gst_caps_get_structure (caps, 0);
/* accept upstream info if provided */