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omxvideoenc: Add dynamic framerate support

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Instead of going through a full reset, try and change the framerate
config on the encoder when only the framerate have change.
This commit is contained in:
Nicolas Dufresne 2018-02-13 18:25:51 +00:00 committed by Olivier Crête
parent da512c2fdc
commit 4f6d788999
1 changed files with 52 additions and 0 deletions
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52
omx/gstomxvideoenc.c
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@ -2145,6 +2145,55 @@ gst_omx_video_enc_enable (GstOMXVideoEnc * self, GstBuffer * input)
return TRUE;
}
/* returns TRUE if only the framerate changed and that framerate could be
* updated using OMX_IndexConfigVideoFramerate */
static gboolean
gst_omx_video_enc_framerate_changed (GstOMXVideoEnc * self,
GstVideoCodecState * state)
{
GstVideoInfo prev_info = self->input_state->info;
GstVideoInfo *info = &state->info;
GstOMXVideoEncClass *klass;
klass = GST_OMX_VIDEO_ENC_GET_CLASS (self);
prev_info.fps_n = info->fps_n;
prev_info.fps_d = info->fps_d;
/* if only the framerate changed, try and set the framerate parameter */
if (gst_video_info_is_equal (info, &prev_info)) {
OMX_CONFIG_FRAMERATETYPE config;
OMX_ERRORTYPE err;
GST_DEBUG_OBJECT (self, "Framerate change detected: %d/%d -> %d/%d",
self->input_state->info.fps_n, self->input_state->info.fps_d,
info->fps_n, info->fps_d);
GST_OMX_INIT_STRUCT (&config);
config.nPortIndex = self->enc_in_port->index;
if (klass->cdata.hacks & GST_OMX_HACK_VIDEO_FRAMERATE_INTEGER)
config.xEncodeFramerate = info->fps_n ? (info->fps_n) / (info->fps_d) : 0;
else
config.xEncodeFramerate = gst_omx_video_calculate_framerate_q16 (info);
err = gst_omx_component_set_config (self->enc,
OMX_IndexConfigVideoFramerate, &config);
if (err == OMX_ErrorNone) {
gst_video_codec_state_unref (self->input_state);
self->input_state = gst_video_codec_state_ref (state);
return TRUE;
} else {
GST_WARNING_OBJECT (self,
"Failed to set framerate configuration: %s (0x%08x)",
gst_omx_error_to_string (err), err);
/* if changing the rate dynamically didn't work, keep going with a full
* encoder reset */
}
}
return FALSE;
}
static gboolean
gst_omx_video_enc_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state)
@ -2172,6 +2221,9 @@ gst_omx_video_enc_set_format (GstVideoEncoder * encoder,
* format change happened we can just exit here.
*/
if (needs_disable) {
if (gst_omx_video_enc_framerate_changed (self, state))
return TRUE;
if (!gst_omx_video_enc_disable (self))
return FALSE;