From 8fea395f0de14ab31091f1b8b7d978e615eadafd Mon Sep 17 00:00:00 2001 From: "Xiang, Haihao" Date: Wed, 3 Jul 2013 10:31:17 +0800 Subject: [PATCH] Insert a phantom slice for H.264 deocdong on SNB If the first slice does't start at 0, a phantom slice is added before the first slice. Signed-off-by: Xiang, Haihao --- src/gen6_mfd.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 51 insertions(+), 5 deletions(-) diff --git a/src/gen6_mfd.c b/src/gen6_mfd.c index 3f696dd..e94e53e 100755 --- a/src/gen6_mfd.c +++ b/src/gen6_mfd.c @@ -606,11 +606,32 @@ gen6_mfd_avc_slice_state(VADriverContextP ctx, static void gen6_mfd_avc_phantom_slice_state(VADriverContextP ctx, VAPictureParameterBufferH264 *pic_param, + VASliceParameterBufferH264 *next_slice_param, struct gen6_mfd_context *gen6_mfd_context) { struct intel_batchbuffer *batch = gen6_mfd_context->base.batch; int width_in_mbs = pic_param->picture_width_in_mbs_minus1 + 1; int height_in_mbs = pic_param->picture_height_in_mbs_minus1 + 1; /* frame height */ + int slice_hor_pos, slice_ver_pos, slice_start_mb_num, next_slice_hor_pos, next_slice_ver_pos; + int mbaff_picture = (!pic_param->pic_fields.bits.field_pic_flag && + pic_param->seq_fields.bits.mb_adaptive_frame_field_flag); + + if (next_slice_param) { + int first_mb_in_next_slice; + + slice_hor_pos = 0; + slice_ver_pos = 0; + slice_start_mb_num = 0; + first_mb_in_next_slice = next_slice_param->first_mb_in_slice << mbaff_picture; + next_slice_hor_pos = first_mb_in_next_slice % width_in_mbs; + next_slice_ver_pos = first_mb_in_next_slice / width_in_mbs; + } else { + slice_hor_pos = 0; + slice_ver_pos = height_in_mbs; + slice_start_mb_num = width_in_mbs * height_in_mbs / (1 + !!pic_param->pic_fields.bits.field_pic_flag); + next_slice_hor_pos = 0; + next_slice_ver_pos = 0; + } BEGIN_BCS_BATCH(batch, 11); /* FIXME: is it 10??? */ OUT_BCS_BATCH(batch, MFX_AVC_SLICE_STATE | (11 - 2)); @@ -618,9 +639,12 @@ gen6_mfd_avc_phantom_slice_state(VADriverContextP ctx, OUT_BCS_BATCH(batch, 0); OUT_BCS_BATCH(batch, 0); OUT_BCS_BATCH(batch, - height_in_mbs << 24 | - width_in_mbs * height_in_mbs / (1 + !!pic_param->pic_fields.bits.field_pic_flag)); - OUT_BCS_BATCH(batch, 0); + slice_ver_pos << 24 | + slice_hor_pos << 16 | + slice_start_mb_num << 0); + OUT_BCS_BATCH(batch, + next_slice_ver_pos << 16 | + next_slice_hor_pos << 0); OUT_BCS_BATCH(batch, 0); OUT_BCS_BATCH(batch, 0); OUT_BCS_BATCH(batch, 0); @@ -749,13 +773,31 @@ gen6_mfd_avc_phantom_slice_bsd_object(VADriverContextP ctx, static void gen6_mfd_avc_phantom_slice(VADriverContextP ctx, VAPictureParameterBufferH264 *pic_param, + VASliceParameterBufferH264 *next_slice_param, struct gen6_mfd_context *gen6_mfd_context) { - gen6_mfd_avc_phantom_slice_state(ctx, pic_param, gen6_mfd_context); + gen6_mfd_avc_phantom_slice_state(ctx, pic_param, next_slice_param, gen6_mfd_context); gen6_mfd_avc_phantom_slice_bsd_object(ctx, pic_param, gen6_mfd_context); } static void +gen6_mfd_avc_phantom_slice_first(VADriverContextP ctx, + VAPictureParameterBufferH264 *pic_param, + VASliceParameterBufferH264 *next_slice_param, + struct gen6_mfd_context *gen6_mfd_context) +{ + gen6_mfd_avc_phantom_slice(ctx, pic_param, next_slice_param, gen6_mfd_context); +} + +static void +gen6_mfd_avc_phantom_slice_last(VADriverContextP ctx, + VAPictureParameterBufferH264 *pic_param, + struct gen6_mfd_context *gen6_mfd_context) +{ + gen6_mfd_avc_phantom_slice(ctx, pic_param, NULL, gen6_mfd_context); +} + +static void gen6_mfd_avc_decode_init(VADriverContextP ctx, struct decode_state *decode_state, struct gen6_mfd_context *gen6_mfd_context) @@ -896,6 +938,10 @@ gen6_mfd_avc_decode_picture(VADriverContextP ctx, else next_slice_group_param = (VASliceParameterBufferH264 *)decode_state->slice_params[j + 1]->buffer; + if (j == 0 && + slice_param->first_mb_in_slice) + gen6_mfd_avc_phantom_slice_first(ctx, pic_param, slice_param, gen6_mfd_context); + for (i = 0; i < decode_state->slice_params[j]->num_elements; i++) { assert(slice_param->slice_data_flag == VA_SLICE_DATA_FLAG_ALL); assert((slice_param->slice_type == SLICE_TYPE_I) || @@ -918,7 +964,7 @@ gen6_mfd_avc_decode_picture(VADriverContextP ctx, } } - gen6_mfd_avc_phantom_slice(ctx, pic_param, gen6_mfd_context); + gen6_mfd_avc_phantom_slice_last(ctx, pic_param, gen6_mfd_context); intel_batchbuffer_end_atomic(batch); intel_batchbuffer_flush(batch); } -- 1.7.9.5