From ef52ba8aa09214041f91c203eba2563e6e61aef3 Mon Sep 17 00:00:00 2001 From: Leo Liu Date: Wed, 14 Mar 2018 16:47:26 -0400 Subject: [PATCH] st/va: parse VP9 uncompressed frame header MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit To get some of UVD required parameters. Signed-off-by: Leo Liu Acked-by: Christian König --- src/gallium/state_trackers/va/picture.c | 2 +- src/gallium/state_trackers/va/picture_vp9.c | 237 ++++++++++++++++++++ src/gallium/state_trackers/va/va_private.h | 1 + 3 files changed, 239 insertions(+), 1 deletion(-) diff --git a/src/gallium/state_trackers/va/picture.c b/src/gallium/state_trackers/va/picture.c index e483ea3e217..e2cdb2b40cd 100644 --- a/src/gallium/state_trackers/va/picture.c +++ b/src/gallium/state_trackers/va/picture.c @@ -303,7 +303,7 @@ handleVASliceDataBufferType(vlVaContext *context, vlVaBuffer *buf) case PIPE_VIDEO_FORMAT_JPEG: break; case PIPE_VIDEO_FORMAT_VP9: - /* TODO */ + vlVaDecoderVP9BitstreamHeader(context, buf); break; default: break; diff --git a/src/gallium/state_trackers/va/picture_vp9.c b/src/gallium/state_trackers/va/picture_vp9.c index 38684ca21e1..c1ca54cd008 100644 --- a/src/gallium/state_trackers/va/picture_vp9.c +++ b/src/gallium/state_trackers/va/picture_vp9.c @@ -25,6 +25,7 @@ * **************************************************************************/ +#include "vl/vl_vlc.h" #include "va_private.h" void vlVaHandlePictureParameterBufferVP9(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf) @@ -109,3 +110,239 @@ void vlVaHandleSliceParameterBufferVP9(vlVaContext *context, vlVaBuffer *buf) context->desc.vp9.slice_parameter.seg_param[i].chroma_dc_quant_scale = vp9->seg_param[i].chroma_dc_quant_scale; } } + +static unsigned vp9_u(struct vl_vlc *vlc, unsigned n) +{ + unsigned valid = vl_vlc_valid_bits(vlc); + + if (n == 0) + return 0; + + if (valid < 32) + vl_vlc_fillbits(vlc); + + return vl_vlc_get_uimsbf(vlc, n); +} + +static signed vp9_s(struct vl_vlc *vlc, unsigned n) +{ + unsigned v; + bool s; + + v = vp9_u(vlc, n); + s = vp9_u(vlc, 1); + + return s ? -v : v; +} + +static void bitdepth_colorspace_sampling(struct vl_vlc *vlc, unsigned profile) +{ + unsigned cs; + + if (profile == 2) + /* bit_depth */ + vp9_u(vlc, 1); + + cs = vp9_u(vlc, 3); + if (cs != 7) + /* yuv_range_flag */ + vp9_u(vlc, 1); +} + +static void frame_size(struct vl_vlc *vlc) +{ + /* width_minus_one */ + vp9_u(vlc, 16); + /* height_minus_one */ + vp9_u(vlc, 16); + + /* has_scaling */ + if (vp9_u(vlc, 1)) { + /* render_width_minus_one */ + vp9_u(vlc, 16); + /* render_height_minus_one */ + vp9_u(vlc, 16); + } +} + +void vlVaDecoderVP9BitstreamHeader(vlVaContext *context, vlVaBuffer *buf) +{ + struct vl_vlc vlc; + unsigned profile; + bool frame_type, show_frame, error_resilient_mode; + bool mode_ref_delta_enabled, mode_ref_delta_update = false; + int i; + + vl_vlc_init(&vlc, 1, (const void * const*)&buf->data, + (const unsigned *)&context->desc.vp9.picture_parameter.frame_header_length_in_bytes); + + /* frame_marker */ + if (vp9_u(&vlc, 2) != 0x2) + return; + + profile = vp9_u(&vlc, 1) | vp9_u(&vlc, 1) << 1; + + if (profile == 3) + profile += vp9_u(&vlc, 1); + + if (profile != 0 && profile != 2) + return; + + /* show_existing_frame */ + if (vp9_u(&vlc, 1)) + return; + + frame_type = vp9_u(&vlc, 1); + show_frame = vp9_u(&vlc, 1); + error_resilient_mode = vp9_u(&vlc, 1); + + if (frame_type == 0) { + /* sync_code */ + if (vp9_u(&vlc, 24) != 0x498342) + return; + + bitdepth_colorspace_sampling(&vlc, profile); + frame_size(&vlc); + } else { + bool intra_only, size_in_refs = false; + + intra_only = show_frame ? 0 : vp9_u(&vlc, 1); + if (!error_resilient_mode) + /* reset_frame_context */ + vp9_u(&vlc, 2); + + if (intra_only) { + /* sync_code */ + if (vp9_u(&vlc, 24) != 0x498342) + return; + + bitdepth_colorspace_sampling(&vlc, profile); + /* refresh_frame_flags */ + vp9_u(&vlc, 8); + frame_size(&vlc); + } else { + /* refresh_frame_flags */ + vp9_u(&vlc, 8); + + for (i = 0; i < 3; ++i) { + /* frame refs */ + vp9_u(&vlc, 3); + vp9_u(&vlc, 1); + } + + for (i = 0; i < 3; ++i) { + size_in_refs = vp9_u(&vlc, 1); + if (size_in_refs) + break; + } + + if (!size_in_refs) { + /* width/height_minus_one */ + vp9_u(&vlc, 16); + vp9_u(&vlc, 16); + } + + if (vp9_u(&vlc, 1)) { + /* render_width/height_minus_one */ + vp9_u(&vlc, 16); + vp9_u(&vlc, 16); + } + + /* high_precision_mv */ + vp9_u(&vlc, 1); + /* filter_switchable */ + if (!vp9_u(&vlc, 1)) + /* filter_index */ + vp9_u(&vlc, 2); + } + } + if (!error_resilient_mode) { + /* refresh_frame_context */ + vp9_u(&vlc, 1); + /* frame_parallel_decoding_mode */ + vp9_u(&vlc, 1); + } + /* frame_context_index */ + vp9_u(&vlc, 2); + + /* loop filter */ + + /* filter_level */ + vp9_u(&vlc, 6); + /* sharpness_level */ + vp9_u(&vlc, 3); + + mode_ref_delta_enabled = vp9_u(&vlc, 1); + if (mode_ref_delta_enabled) { + mode_ref_delta_update = vp9_u(&vlc, 1); + if (mode_ref_delta_update) { + for (i = 0; i < 4; ++i) { + /* update_ref_delta */ + if (vp9_u(&vlc, 1)) + /* ref_deltas */ + vp9_s(&vlc, 6); + } + for (i = 0; i < 2; ++i) { + /* update_mode_delta */ + if (vp9_u(&vlc, 1)) + /* mode_deltas */ + vp9_s(&vlc, 6); + } + } + } + context->desc.vp9.picture_parameter.mode_ref_delta_enabled = mode_ref_delta_enabled; + context->desc.vp9.picture_parameter.mode_ref_delta_update = mode_ref_delta_update; + + /* quantization */ + + context->desc.vp9.picture_parameter.base_qindex = vp9_u(&vlc, 8); + context->desc.vp9.picture_parameter.y_dc_delta_q = vp9_u(&vlc, 1) ? vp9_s(&vlc, 4) : 0; + context->desc.vp9.picture_parameter.uv_ac_delta_q = vp9_u(&vlc, 1) ? vp9_s(&vlc, 4) : 0; + context->desc.vp9.picture_parameter.uv_dc_delta_q = vp9_u(&vlc, 1) ? vp9_s(&vlc, 4) : 0; + + /* segmentation */ + + /* enabled */ + if (!vp9_u(&vlc, 1)) + return; + + /* update_map */ + if (vp9_u(&vlc, 1)) { + for (i = 0; i < 7; ++i) { + /* tree_probs_set */ + if (vp9_u(&vlc, 1)) { + /* tree_probs */ + vp9_u(&vlc, 8); + } + } + + /* temporal_update */ + if (vp9_u(&vlc, 1)) { + for (i = 0; i < 3; ++i) { + /* pred_probs_set */ + if (vp9_u(&vlc, 1)) + /* pred_probs */ + vp9_u(&vlc, 8); + } + } + } + + /* update_data */ + if (vp9_u(&vlc, 1)) { + /* abs_delta */ + vp9_u(&vlc, 1); + for (i = 0; i < 8; ++i) { + /* Use alternate quantizer */ + if ((context->desc.vp9.slice_parameter.seg_param[i].alt_quant_enabled = vp9_u(&vlc, 1))) + context->desc.vp9.slice_parameter.seg_param[i].alt_quant = vp9_s(&vlc, 8); + /* Use alternate loop filter value */ + if ((context->desc.vp9.slice_parameter.seg_param[i].alt_lf_enabled = vp9_u(&vlc, 1))) + context->desc.vp9.slice_parameter.seg_param[i].alt_lf = vp9_s(&vlc, 6); + /* Optional Segment reference frame */ + if (vp9_u(&vlc, 1)) + vp9_u(&vlc, 2); + /* Optional Segment skip mode */ + vp9_u(&vlc, 1); + } + } +} diff --git a/src/gallium/state_trackers/va/va_private.h b/src/gallium/state_trackers/va/va_private.h index ef9142876c6..c82fec3d5f2 100644 --- a/src/gallium/state_trackers/va/va_private.h +++ b/src/gallium/state_trackers/va/va_private.h @@ -431,6 +431,7 @@ void vlVaHandleHuffmanTableBufferType(vlVaContext *context, vlVaBuffer *buf); void vlVaHandleSliceParameterBufferMJPEG(vlVaContext *context, vlVaBuffer *buf); void vlVaHandlePictureParameterBufferVP9(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf); void vlVaHandleSliceParameterBufferVP9(vlVaContext *context, vlVaBuffer *buf); +void vlVaDecoderVP9BitstreamHeader(vlVaContext *context, vlVaBuffer *buf); void getEncParamPresetH264(vlVaContext *context); void getEncParamPresetH265(vlVaContext *context); VAStatus vlVaHandleVAEncPictureParameterBufferTypeH264(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf); -- 2.30.2