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omxvideoenc: adjust stride and slice height from input

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Use the stride and slice height information from the first buffer meta
data to adjust the settings of the input port.
This will ensure that the OMX input buffers match the GStreamer ones
and so will save us from having to copy line-by-line each one.

This is also the first step to allow the OMX encoder to receive dmabuf.

Tested on rpi and zynqultrascaleplus.

https://bugzilla.gnome.org/show_bug.cgi?id=785967
This commit is contained in:
Guillaume Desmottes 2017-08-07 13:16:01 -04:00 committed by Nicolas Dufresne
parent 07e80c9425
commit 0ee8213ab2
1 changed files with 35 additions and 8 deletions
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43
omx/gstomxvideoenc.c
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@ -1003,24 +1003,51 @@ gst_omx_video_enc_disable (GstOMXVideoEnc * self)
}
static gboolean
gst_omx_video_enc_configure_input_buffer (GstOMXVideoEnc * self)
gst_omx_video_enc_configure_input_buffer (GstOMXVideoEnc * self,
GstBuffer * input)
{
GstOMXVideoEncClass *klass = GST_OMX_VIDEO_ENC_GET_CLASS (self);
GstVideoInfo *info = &self->input_state->info;
OMX_PARAM_PORTDEFINITIONTYPE port_def;
GstVideoMeta *meta;
guint stride, slice_height;
gst_omx_port_get_port_definition (self->enc_in_port, &port_def);
meta = gst_buffer_get_video_meta (input);
if (meta) {
/* Use the stride and slice height of the first plane */
stride = meta->stride[0];
g_assert (stride != 0);
slice_height = (meta->offset[1] - meta->offset[0]) / stride;
GST_DEBUG_OBJECT (self,
"adjusting stride (%d) and slice-height (%d) using input buffer meta",
stride, slice_height);
} else {
GST_WARNING_OBJECT (self,
"input buffer doesn't provide video meta, can't adjust stride and slice height");
stride = info->stride[0];
slice_height = info->height;
}
if (port_def.nBufferAlignment)
port_def.format.video.nStride =
GST_ROUND_UP_N (info->width, port_def.nBufferAlignment);
GST_ROUND_UP_N (stride, port_def.nBufferAlignment);
else
port_def.format.video.nStride = GST_ROUND_UP_4 (info->width); /* safe (?) default */
port_def.format.video.nStride = GST_ROUND_UP_4 (stride); /* safe (?) default */
if (klass->cdata.hacks & GST_OMX_HACK_HEIGHT_MULTIPLE_16)
port_def.format.video.nSliceHeight = GST_ROUND_UP_16 (info->height);
port_def.format.video.nSliceHeight = GST_ROUND_UP_16 (slice_height);
else
port_def.format.video.nSliceHeight = info->height;
port_def.format.video.nSliceHeight = slice_height;
GST_DEBUG_OBJECT (self,
"setting input nStride=%d and nSliceHeight=%d (nBufferAlignment=%d)",
(guint) port_def.format.video.nStride,
(guint) port_def.format.video.nSliceHeight,
(guint) port_def.nBufferAlignment);
switch (port_def.format.video.eColorFormat) {
case OMX_COLOR_FormatYUV420Planar:
@ -1053,13 +1080,13 @@ gst_omx_video_enc_configure_input_buffer (GstOMXVideoEnc * self)
}
static gboolean
gst_omx_video_enc_enable (GstOMXVideoEnc * self)
gst_omx_video_enc_enable (GstOMXVideoEnc * self, GstBuffer * input)
{
GstOMXVideoEncClass *klass;
klass = GST_OMX_VIDEO_ENC_GET_CLASS (self);
if (!gst_omx_video_enc_configure_input_buffer (self))
if (!gst_omx_video_enc_configure_input_buffer (self, input))
return FALSE;
GST_DEBUG_OBJECT (self, "Enabling component");
@ -1536,7 +1563,7 @@ gst_omx_video_enc_handle_frame (GstVideoEncoder * encoder,
if (!self->started) {
if (gst_omx_port_is_flushing (self->enc_out_port)) {
if (!gst_omx_video_enc_enable (self))
if (!gst_omx_video_enc_enable (self, frame->input_buffer))
return FALSE;
}