diff options
Diffstat (limited to 'common/recipes-multimedia/gstreamer/gst-plugins-good/0009-avidemux-set-frame-start-code-to-VC-1-advanced-profi.patch')
| -rw-r--r-- | common/recipes-multimedia/gstreamer/gst-plugins-good/0009-avidemux-set-frame-start-code-to-VC-1-advanced-profi.patch | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/common/recipes-multimedia/gstreamer/gst-plugins-good/0009-avidemux-set-frame-start-code-to-VC-1-advanced-profi.patch b/common/recipes-multimedia/gstreamer/gst-plugins-good/0009-avidemux-set-frame-start-code-to-VC-1-advanced-profi.patch new file mode 100644 index 0000000..180fac3 --- /dev/null +++ b/common/recipes-multimedia/gstreamer/gst-plugins-good/0009-avidemux-set-frame-start-code-to-VC-1-advanced-profi.patch @@ -0,0 +1,90 @@ +From a3dc6aa0c57e1fa00efdf0e68d3a4b8645519b9d Mon Sep 17 00:00:00 2001 +From: Kazunori Kobayashi <kkobayas@igel.co.jp> +Date: Wed, 18 Jul 2012 19:30:34 +0900 +Subject: [PATCH 09/31] avidemux: set frame start code to VC-1 advanced + profile stream + +VC-1 advanced profile constrains the bitstream format to pair +the frame data with the frame start code. +This patch pulls frame data from previous plugin with extra field +for containing a start code and inserts the start code before the +frame data if the stream doesn't has the start code. +--- + gst/avi/gstavidemux.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++--- + 1 file changed, 48 insertions(+), 3 deletions(-) + +diff --git a/gst/avi/gstavidemux.c b/gst/avi/gstavidemux.c +index b6c065f..385aa30 100644 +--- a/gst/avi/gstavidemux.c ++++ b/gst/avi/gstavidemux.c +@@ -4689,6 +4689,10 @@ gst_avi_demux_loop_data (GstAviDemux * avi) + guint64 out_offset, out_offset_end; + gboolean keyframe; + GstAviIndexEntry *entry; ++ guint8 *data; ++ GstStructure *structure; ++ guint32 fourcc; ++ gboolean need_st_code; + + do { + stream_num = gst_avi_demux_find_next (avi, avi->segment.rate); +@@ -4740,12 +4744,53 @@ gst_avi_demux_loop_data (GstAviDemux * avi) + G_GUINT64_FORMAT " (0x%" G_GINT64_MODIFIER "x), kf %d", size, + stream_num, offset, offset, keyframe); + ++ structure = gst_caps_get_structure (GST_PAD_CAPS (stream->pad), 0); ++ if (gst_structure_get_fourcc (structure, "format", &fourcc)) { ++ /* set start code for VC-1 advanced profile if fourcc is 'WVC1' */ ++ if (fourcc == GST_MAKE_FOURCC ('W', 'V', 'C', '1')) ++ need_st_code = TRUE; ++ else ++ need_st_code = FALSE; ++ } else ++ need_st_code = FALSE; ++ + /* FIXME, check large chunks and cut them up */ + + /* pull in the data */ +- ret = gst_pad_pull_range (avi->sinkpad, offset, size, &buf); +- if (ret != GST_FLOW_OK) +- goto pull_failed; ++ if (need_st_code) { ++ if (offset < 4) ++ /* This branch isn't passed through because offset is definitely ++ more than 4 owing to container's header presented before ++ frame data. */ ++ goto pull_failed; ++ ++ ret = gst_pad_pull_range (avi->sinkpad, offset - 4, size + 4, &buf); ++ if (ret != GST_FLOW_OK) ++ goto pull_failed; ++ ++ data = GST_BUFFER_DATA (buf); ++ /* check if this stream has a start code */ ++ if (data[4] == 0x00 && data[5] == 0x00 && data[6] == 0x01 && ++ data[7] == 0x0d) { ++ GstBuffer *sub_buf; ++ ++ sub_buf = gst_buffer_create_sub (buf, 4, size); ++ if (sub_buf == NULL) ++ goto pull_failed; ++ ++ gst_buffer_unref (buf); ++ buf = sub_buf; ++ } else { ++ data[0] = 0x00; ++ data[1] = 0x00; ++ data[2] = 0x01; ++ data[3] = 0x0d; ++ } ++ } else { ++ ret = gst_pad_pull_range (avi->sinkpad, offset, size, &buf); ++ if (ret != GST_FLOW_OK) ++ goto pull_failed; ++ } + + /* check for short buffers, this is EOS as well */ + if (GST_BUFFER_SIZE (buf) < size) +-- +1.7.9.5 + |