mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-10 03:19:40 +00:00
Code Issues 1 Projects Releases Wiki Activity

libs: add support for rate-control to GstVaapiContext.

Browse source 
Extend GstVaapiContextInfo structure to hold the desired rate control
mode for encoding purposes. For decoding purposes, this field is not
used and it is initialized to GST_VAAPI_RATECONTROL_NONE.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
This commit is contained in:
Wind Yuan 2013-07-12 22:07:59 +08:00 committed by Gwenole Beauchesne
parent 082fb3f1b4
commit 02e174c8bc
2 changed files with 38 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
gst-libs/gst/vaapi/gstvaapicontext.c
View file

@ -522,7 +522,9 @@ gst_vaapi_context_create(GstVaapiContext *context)
GstVaapiDisplay * const display = GST_VAAPI_OBJECT_DISPLAY(context);
VAProfile va_profile;
VAEntrypoint va_entrypoint;
VAConfigAttrib attrib;
guint va_rate_control;
VAConfigAttrib attribs[2];
guint num_attribs;
VAContextID context_id;
VASurfaceID surface_id;
VAStatus status;
@ -557,26 +559,42 @@ gst_vaapi_context_create(GstVaapiContext *context)
va_profile = gst_vaapi_profile_get_va_profile(cip->profile);
va_entrypoint = gst_vaapi_entrypoint_get_va_entrypoint(cip->entrypoint);
num_attribs = 0;
attribs[num_attribs++].type = VAConfigAttribRTFormat;
if (cip->entrypoint == GST_VAAPI_ENTRYPOINT_SLICE_ENCODE)
attribs[num_attribs++].type = VAConfigAttribRateControl;
GST_VAAPI_DISPLAY_LOCK(display);
attrib.type = VAConfigAttribRTFormat;
status = vaGetConfigAttributes(
GST_VAAPI_DISPLAY_VADISPLAY(display),
va_profile,
va_entrypoint,
&attrib, 1
attribs, num_attribs
);
GST_VAAPI_DISPLAY_UNLOCK(display);
if (!vaapi_check_status(status, "vaGetConfigAttributes()"))
goto end;
if (!(attrib.value & VA_RT_FORMAT_YUV420))
if (!(attribs[0].value & VA_RT_FORMAT_YUV420))
goto end;
if (cip->entrypoint == GST_VAAPI_ENTRYPOINT_SLICE_ENCODE) {
va_rate_control = from_GstVaapiRateControl(cip->rc_mode);
if (va_rate_control == VA_RC_NONE)
attribs[1].value = VA_RC_NONE;
if ((attribs[1].value & va_rate_control) != va_rate_control) {
GST_ERROR("unsupported %s rate control",
string_of_VARateControl(va_rate_control));
goto end;
}
attribs[1].value = va_rate_control;
}
GST_VAAPI_DISPLAY_LOCK(display);
status = vaCreateConfig(
GST_VAAPI_DISPLAY_VADISPLAY(display),
va_profile,
va_entrypoint,
&attrib, 1,
attribs, num_attribs,
&context->config_id
);
GST_VAAPI_DISPLAY_UNLOCK(display);
@ -651,6 +669,7 @@ gst_vaapi_context_new(
info.profile = profile;
info.entrypoint = entrypoint;
info.rc_mode = GST_VAAPI_RATECONTROL_NONE;
info.width = width;
info.height = height;
info.ref_frames = get_max_ref_frames(profile);
@ -719,6 +738,7 @@ gst_vaapi_context_reset(
info.profile = profile;
info.entrypoint = entrypoint;
info.rc_mode = GST_VAAPI_RATECONTROL_NONE;
info.width = width;
info.height = height;
info.ref_frames = context->info.ref_frames;
@ -742,7 +762,7 @@ gst_vaapi_context_reset_full(GstVaapiContext *context,
const GstVaapiContextInfo *new_cip)
{
GstVaapiContextInfo * const cip = &context->info;
gboolean size_changed, codec_changed;
gboolean size_changed, codec_changed, rc_mode_changed;
size_changed = cip->width != new_cip->width ||
cip->height != new_cip->height;
@ -760,6 +780,14 @@ gst_vaapi_context_reset_full(GstVaapiContext *context,
cip->entrypoint = new_cip->entrypoint;
}
if (new_cip->entrypoint == GST_VAAPI_ENTRYPOINT_SLICE_ENCODE) {
rc_mode_changed = cip->rc_mode != cip->rc_mode;
if (rc_mode_changed) {
gst_vaapi_context_destroy(context);
cip->rc_mode = new_cip->rc_mode;
}
}
if (size_changed && !gst_vaapi_context_create_surfaces(context))
return FALSE;

4
gst-libs/gst/vaapi/gstvaapicontext.h
View file

@ -45,10 +45,14 @@ typedef struct _GstVaapiContextInfo GstVaapiContextInfo;
* Structure holding VA context info like encoded size, decoder
* profile and entry-point to use, and maximum number of reference
* frames reported by the bitstream.
*
* Note: @rc_mode is only valid for VA context used for encoding,
* i.e. if @entrypoint is set to @GST_VAAPI_ENTRYPOINT_SLICE_ENCODE.
*/
struct _GstVaapiContextInfo {
GstVaapiProfile profile;
GstVaapiEntrypoint entrypoint;
GstVaapiRateControl rc_mode;
guint width;
guint height;
guint ref_frames;