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Add quality-performance trade-off setting #306

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Add quality-performance trade-off setting #306

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42 changes: 42 additions & 0 deletions encode/av1encode.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1512,6 +1512,45 @@ render_fr_buffer()
}
}

static void
render_quality_buffer()
{
VABufferID param_buf = VA_INVALID_ID;
VAStatus va_status;
VABufferID render_id = VA_INVALID_ID;

VAEncMiscParameterBuffer *misc_param;
VAEncMiscParameterBufferQualityLevel *misc_quality;

va_status = vaCreateBuffer(va_dpy, context_id,
VAEncMiscParameterBufferType,
sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterBufferQualityLevel),
1, NULL, &param_buf);
CHECK_VASTATUS(va_status, "vaCreateBuffer");

vaMapBuffer(va_dpy, param_buf, (void **)&misc_param);
misc_param->type = VAEncMiscParameterTypeQualityLevel;
misc_quality = (VAEncMiscParameterBufferQualityLevel *)misc_param->data;
memset(misc_quality, 0, sizeof(*misc_quality));

//quality_level range {1...7}, 1 is best quality, 7 is best performance
// 7 is default setting
misc_quality->quality_level = 7;
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suppose this value should come from user?
if you are adding a setting to tune it


vaUnmapBuffer(va_dpy, param_buf);

render_id = param_buf;

va_status = vaRenderPicture(va_dpy, context_id, &render_id, 1);
CHECK_VASTATUS(va_status, "vaRenderPicture");

if (param_buf != VA_INVALID_ID)
{
vaDestroyBuffer(va_dpy, param_buf);
param_buf = VA_INVALID_ID;
}
}

static void
render_misc_buffer()
{
Expand Down Expand Up @@ -2821,6 +2860,9 @@ static int encode_frames(void)
render_misc_buffer();
}

// setting qulity-performance trade-off
if(current_frame_encoding == 0)
render_quality_buffer();

render_packedpicture(); //render packed frame header
render_picture(); //render frame PPS buffer
Expand Down