mm_video: vidc: Add support to set custom input buffer size
Video driver will set the input buffer size based on the
maximum supported resolution of the chip set for any video
playback. To reduce the memory requirements, allow client
to set the custom input buffer size using OMX_SetParameter
index OMX_QcomIndexParamVideoCustomBufferSize with parameter
as QOMX_VIDEO_CUSTOM_BUFFERSIZE structure.
Change-Id: I8e257ce509945fb5203c34a336e7fd2cdc225652
diff --git a/mm-video-v4l2/vidc/vdec/src/omx_vdec_msm8974.cpp b/mm-video-v4l2/vidc/vdec/src/omx_vdec_msm8974.cpp
index 832d328..50b1cf8 100644
--- a/mm-video-v4l2/vidc/vdec/src/omx_vdec_msm8974.cpp
+++ b/mm-video-v4l2/vidc/vdec/src/omx_vdec_msm8974.cpp
@@ -639,6 +639,7 @@
memset (&h264_scratch,0,sizeof (OMX_BUFFERHEADERTYPE));
memset (m_hwdevice_name,0,sizeof(m_hwdevice_name));
memset(m_demux_offsets, 0, ( sizeof(OMX_U32) * 8192) );
+ memset(&m_custom_buffersize, 0, sizeof(m_custom_buffersize));
m_demux_entries = 0;
msg_thread_id = 0;
async_thread_id = 0;
@@ -3146,6 +3147,13 @@
}
}
}
+ if (m_custom_buffersize.input_buffersize
+ && (portDefn->nBufferSize > m_custom_buffersize.input_buffersize)) {
+ DEBUG_PRINT_ERROR("ERROR: Custom buffer size set by client: %d, trying to set: %d",
+ m_custom_buffersize.input_buffersize, portDefn->nBufferSize);
+ eRet = OMX_ErrorBadParameter;
+ break;
+ }
if (portDefn->nBufferCountActual >= drv_ctx.ip_buf.mincount
|| portDefn->nBufferSize != drv_ctx.ip_buf.buffer_size) {
port_format_changed = true;
@@ -3648,6 +3656,33 @@
}
#endif
+ case OMX_QcomIndexParamVideoCustomBufferSize:
+ {
+ DEBUG_PRINT_LOW("set_parameter: OMX_QcomIndexParamVideoCustomBufferSize");
+ QOMX_VIDEO_CUSTOM_BUFFERSIZE* pParam = (QOMX_VIDEO_CUSTOM_BUFFERSIZE*)paramData;
+ if (pParam->nPortIndex == OMX_CORE_INPUT_PORT_INDEX) {
+ struct v4l2_control control;
+ control.id = V4L2_CID_MPEG_VIDC_VIDEO_BUFFER_SIZE_LIMIT;
+ control.value = pParam->nBufferSize;
+ if (ioctl(drv_ctx.video_driver_fd, VIDIOC_S_CTRL, &control)) {
+ DEBUG_PRINT_ERROR("Failed to set input buffer size");
+ eRet = OMX_ErrorUnsupportedSetting;
+ } else {
+ eRet = get_buffer_req(&drv_ctx.ip_buf);
+ if (eRet == OMX_ErrorNone) {
+ m_custom_buffersize.input_buffersize = drv_ctx.ip_buf.buffer_size;
+ DEBUG_PRINT_HIGH("Successfully set custom input buffer size = %d",
+ m_custom_buffersize.input_buffersize);
+ } else {
+ DEBUG_PRINT_ERROR("Failed to get buffer requirement");
+ }
+ }
+ } else {
+ DEBUG_PRINT_ERROR("ERROR: Custom buffer size in not supported on output port");
+ eRet = OMX_ErrorBadParameter;
+ }
+ break;
+ }
default: {
DEBUG_PRINT_ERROR("Setparameter: unknown param %d", paramIndex);
eRet = OMX_ErrorUnsupportedIndex;