#include "avcodec.h"
#include "h264.h"
+#include "h264_sei.h"
#include "internal.h"
#include "vaapi_encode.h"
#include "vaapi_encode_h26x.h"
int pic_init_qs_minus26;
- char vui_parameters_present_flag;
+ char overscan_info_present_flag;
+ char overscan_appropriate_flag;
+
+ char video_signal_type_present_flag;
+ unsigned int video_format;
+ char video_full_range_flag;
+ char colour_description_present_flag;
+ unsigned int colour_primaries;
+ unsigned int transfer_characteristics;
+ unsigned int matrix_coefficients;
+
+ char chroma_loc_info_present_flag;
+ unsigned int chroma_sample_loc_type_top_field;
+ unsigned int chroma_sample_loc_type_bottom_field;
+
+ // Some timing elements are in VAEncSequenceParameterBufferH264.
+ char fixed_frame_rate_flag;
+
+ char nal_hrd_parameters_present_flag;
+ char vcl_hrd_parameters_present_flag;
+ char low_delay_hrd_flag;
+ char pic_struct_present_flag;
+ char bitstream_restriction_flag;
+
+ unsigned int cpb_cnt_minus1;
+ unsigned int bit_rate_scale;
+ unsigned int cpb_size_scale;
+ unsigned int bit_rate_value_minus1[32];
+ unsigned int cpb_size_value_minus1[32];
+ char cbr_flag[32];
+ unsigned int initial_cpb_removal_delay_length_minus1;
+ unsigned int cpb_removal_delay_length_minus1;
+ unsigned int dpb_output_delay_length_minus1;
+ unsigned int time_offset_length;
+
+ unsigned int initial_cpb_removal_delay;
+ unsigned int initial_cpb_removal_delay_offset;
+
+ unsigned int pic_struct;
} VAAPIEncodeH264MiscSequenceParams;
// This structure contains all possibly-useful per-slice syntax elements
int fixed_qp_p;
int fixed_qp_b;
+ int next_frame_num;
int64_t idr_pic_count;
- int64_t last_idr_frame;
+
+ int cpb_delay;
+ int dpb_delay;
// Rate control configuration.
+ int send_timing_sei;
struct {
VAEncMiscParameterBuffer misc;
VAEncMiscParameterRateControl rc;
typedef struct VAAPIEncodeH264Options {
int qp;
int quality;
+ int low_power;
} VAAPIEncodeH264Options;
#define vseq_var(name) vseq->name, name
#define vseq_field(name) vseq->seq_fields.bits.name, name
+#define vvui_field(name) vseq->vui_fields.bits.name, name
#define vpic_var(name) vpic->name, name
#define vpic_field(name) vpic->pic_fields.bits.name, name
#define vslice_var(name) vslice->name, name
u(1, 0, rbsp_alignment_zero_bit);
}
+static void vaapi_encode_h264_write_vui(PutBitContext *pbc,
+ VAAPIEncodeContext *ctx)
+{
+ VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
+ VAAPIEncodeH264Context *priv = ctx->priv_data;
+ VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
+ int i;
+
+ u(1, vvui_field(aspect_ratio_info_present_flag));
+ if (vseq->vui_fields.bits.aspect_ratio_info_present_flag) {
+ u(8, vseq_var(aspect_ratio_idc));
+ if (vseq->aspect_ratio_idc == 255) {
+ u(16, vseq_var(sar_width));
+ u(16, vseq_var(sar_height));
+ }
+ }
+
+ u(1, mseq_var(overscan_info_present_flag));
+ if (mseq->overscan_info_present_flag)
+ u(1, mseq_var(overscan_appropriate_flag));
+
+ u(1, mseq_var(video_signal_type_present_flag));
+ if (mseq->video_signal_type_present_flag) {
+ u(3, mseq_var(video_format));
+ u(1, mseq_var(video_full_range_flag));
+ u(1, mseq_var(colour_description_present_flag));
+ if (mseq->colour_description_present_flag) {
+ u(8, mseq_var(colour_primaries));
+ u(8, mseq_var(transfer_characteristics));
+ u(8, mseq_var(matrix_coefficients));
+ }
+ }
+
+ u(1, mseq_var(chroma_loc_info_present_flag));
+ if (mseq->chroma_loc_info_present_flag) {
+ ue(mseq_var(chroma_sample_loc_type_top_field));
+ ue(mseq_var(chroma_sample_loc_type_bottom_field));
+ }
+
+ u(1, vvui_field(timing_info_present_flag));
+ if (vseq->vui_fields.bits.timing_info_present_flag) {
+ u(32, vseq_var(num_units_in_tick));
+ u(32, vseq_var(time_scale));
+ u(1, mseq_var(fixed_frame_rate_flag));
+ }
+
+ u(1, mseq_var(nal_hrd_parameters_present_flag));
+ if (mseq->nal_hrd_parameters_present_flag) {
+ ue(mseq_var(cpb_cnt_minus1));
+ u(4, mseq_var(bit_rate_scale));
+ u(4, mseq_var(cpb_size_scale));
+ for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
+ ue(mseq_var(bit_rate_value_minus1[i]));
+ ue(mseq_var(cpb_size_value_minus1[i]));
+ u(1, mseq_var(cbr_flag[i]));
+ }
+ u(5, mseq_var(initial_cpb_removal_delay_length_minus1));
+ u(5, mseq_var(cpb_removal_delay_length_minus1));
+ u(5, mseq_var(dpb_output_delay_length_minus1));
+ u(5, mseq_var(time_offset_length));
+ }
+ u(1, mseq_var(vcl_hrd_parameters_present_flag));
+ if (mseq->vcl_hrd_parameters_present_flag) {
+ av_assert0(0 && "vcl hrd parameters not supported");
+ }
+
+ if (mseq->nal_hrd_parameters_present_flag ||
+ mseq->vcl_hrd_parameters_present_flag)
+ u(1, mseq_var(low_delay_hrd_flag));
+ u(1, mseq_var(pic_struct_present_flag));
+
+ u(1, vvui_field(bitstream_restriction_flag));
+ if (vseq->vui_fields.bits.bitstream_restriction_flag) {
+ av_assert0(0 && "bitstream restrictions not supported");
+ }
+}
+
static void vaapi_encode_h264_write_sps(PutBitContext *pbc,
VAAPIEncodeContext *ctx)
{
ue(vseq_var(frame_crop_bottom_offset));
}
- u(1, mseq_var(vui_parameters_present_flag));
+ u(1, vseq_var(vui_parameters_present_flag));
+ if (vseq->vui_parameters_present_flag)
+ vaapi_encode_h264_write_vui(pbc, ctx);
vaapi_encode_h264_write_trailing_rbsp(pbc);
}
// No alignment - this need not be a byte boundary.
}
+static void vaapi_encode_h264_write_buffering_period(PutBitContext *pbc,
+ VAAPIEncodeContext *ctx,
+ VAAPIEncodePicture *pic)
+{
+ VAAPIEncodeH264Context *priv = ctx->priv_data;
+ VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
+ VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
+ int i;
+
+ ue(vpic_var(seq_parameter_set_id));
+
+ if (mseq->nal_hrd_parameters_present_flag) {
+ for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
+ u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
+ mseq_var(initial_cpb_removal_delay));
+ u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
+ mseq_var(initial_cpb_removal_delay_offset));
+ }
+ }
+ if (mseq->vcl_hrd_parameters_present_flag) {
+ av_assert0(0 && "vcl hrd parameters not supported");
+ }
+}
+
+static void vaapi_encode_h264_write_pic_timing(PutBitContext *pbc,
+ VAAPIEncodeContext *ctx,
+ VAAPIEncodePicture *pic)
+{
+ VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
+ VAAPIEncodeH264Context *priv = ctx->priv_data;
+ VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
+ int i, num_clock_ts;
+
+ if (mseq->nal_hrd_parameters_present_flag ||
+ mseq->vcl_hrd_parameters_present_flag) {
+ u(mseq->cpb_removal_delay_length_minus1 + 1,
+ 2 * vseq->num_units_in_tick * priv->cpb_delay,
+ cpb_removal_delay);
+ u(mseq->dpb_output_delay_length_minus1 + 1,
+ 2 * vseq->num_units_in_tick * priv->dpb_delay,
+ dpb_output_delay);
+ }
+ if (mseq->pic_struct_present_flag) {
+ u(4, mseq_var(pic_struct));
+ num_clock_ts = (mseq->pic_struct <= 2 ? 1 :
+ mseq->pic_struct <= 4 ? 2 :
+ mseq->pic_struct <= 8 ? 3 : 0);
+ for (i = 0; i < num_clock_ts; i++) {
+ u(1, 0, clock_timestamp_flag[i]);
+ // No full timestamp information.
+ }
+ }
+}
+
+static void vaapi_encode_h264_write_identifier(PutBitContext *pbc,
+ VAAPIEncodeContext *ctx,
+ VAAPIEncodePicture *pic)
+{
+ const char *lavc = LIBAVCODEC_IDENT;
+ const char *vaapi = VA_VERSION_S;
+ const char *driver = vaQueryVendorString(ctx->hwctx->display);
+ char tmp[256];
+ int i;
+
+ // Random (version 4) ISO 11578 UUID.
+ uint8_t uuid[16] = {
+ 0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
+ 0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
+ };
+
+ for (i = 0; i < 16; i++)
+ u(8, uuid[i], uuid_iso_iec_11578);
+
+ snprintf(tmp, sizeof(tmp), "%s / VAAPI %s / %s", lavc, vaapi, driver);
+ for (i = 0; i < sizeof(tmp) && tmp[i]; i++)
+ u(8, tmp[i], user_data_payload_byte);
+}
+
+static void vaapi_encode_h264_write_sei(PutBitContext *pbc,
+ VAAPIEncodeContext *ctx,
+ VAAPIEncodePicture *pic)
+{
+ VAAPIEncodeH264Context *priv = ctx->priv_data;
+ PutBitContext payload_bits;
+ char payload[256];
+ int payload_type, payload_size, i;
+ void (*write_payload)(PutBitContext *pbc,
+ VAAPIEncodeContext *ctx,
+ VAAPIEncodePicture *pic) = NULL;
+
+ vaapi_encode_h264_write_nal_header(pbc, NAL_SEI, 0);
+
+ for (payload_type = 0; payload_type < 64; payload_type++) {
+ switch (payload_type) {
+ case SEI_TYPE_BUFFERING_PERIOD:
+ if (!priv->send_timing_sei ||
+ pic->type != PICTURE_TYPE_IDR)
+ continue;
+ write_payload = &vaapi_encode_h264_write_buffering_period;
+ break;
+ case SEI_TYPE_PIC_TIMING:
+ if (!priv->send_timing_sei)
+ continue;
+ write_payload = &vaapi_encode_h264_write_pic_timing;
+ break;
+ case SEI_TYPE_USER_DATA_UNREGISTERED:
+ if (pic->encode_order != 0)
+ continue;
+ write_payload = &vaapi_encode_h264_write_identifier;
+ break;
+ default:
+ continue;
+ }
+
+ init_put_bits(&payload_bits, payload, sizeof(payload));
+ write_payload(&payload_bits, ctx, pic);
+ if (put_bits_count(&payload_bits) & 7) {
+ write_u(&payload_bits, 1, 1, bit_equal_to_one);
+ while (put_bits_count(&payload_bits) & 7)
+ write_u(&payload_bits, 1, 0, bit_equal_to_zero);
+ }
+ payload_size = put_bits_count(&payload_bits) / 8;
+ flush_put_bits(&payload_bits);
+
+ u(8, payload_type, last_payload_type_byte);
+ u(8, payload_size, last_payload_size_byte);
+ for (i = 0; i < payload_size; i++)
+ u(8, payload[i] & 0xff, sei_payload);
+ }
+
+ vaapi_encode_h264_write_trailing_rbsp(pbc);
+}
+
static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
char *data, size_t *data_len)
{
tmp, header_len);
}
+static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
+ VAAPIEncodePicture *pic,
+ int index, int *type,
+ char *data, size_t *data_len)
+{
+ VAAPIEncodeContext *ctx = avctx->priv_data;
+ PutBitContext pbc;
+ char tmp[256];
+ size_t header_len;
+
+ if (index == 0 && ctx->va_rc_mode == VA_RC_CBR) {
+ *type = VAEncPackedHeaderH264_SEI;
+
+ init_put_bits(&pbc, tmp, sizeof(tmp));
+ vaapi_encode_h264_write_sei(&pbc, ctx, pic);
+ header_len = put_bits_count(&pbc);
+ flush_put_bits(&pbc);
+
+ return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
+ tmp, header_len);
+
+ } else {
+ return AVERROR_EOF;
+ }
+}
+
static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
vseq->frame_cropping_flag = 0;
}
+ vseq->vui_parameters_present_flag = 1;
+ if (avctx->sample_aspect_ratio.num != 0) {
+ vseq->vui_fields.bits.aspect_ratio_info_present_flag = 1;
+ // There is a large enum of these which we could support
+ // individually rather than using the generic X/Y form?
+ if (avctx->sample_aspect_ratio.num ==
+ avctx->sample_aspect_ratio.den) {
+ vseq->aspect_ratio_idc = 1;
+ } else {
+ vseq->aspect_ratio_idc = 255; // Extended SAR.
+ vseq->sar_width = avctx->sample_aspect_ratio.num;
+ vseq->sar_height = avctx->sample_aspect_ratio.den;
+ }
+ }
+ if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
+ avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
+ avctx->colorspace != AVCOL_SPC_UNSPECIFIED) {
+ mseq->video_signal_type_present_flag = 1;
+ mseq->video_format = 5; // Unspecified.
+ mseq->video_full_range_flag = 0;
+ mseq->colour_description_present_flag = 1;
+ // These enums are derived from the standard and hence
+ // we can just use the values directly.
+ mseq->colour_primaries = avctx->color_primaries;
+ mseq->transfer_characteristics = avctx->color_trc;
+ mseq->matrix_coefficients = avctx->colorspace;
+ }
+
vseq->bits_per_second = avctx->bit_rate;
+
+ vseq->vui_fields.bits.timing_info_present_flag = 1;
if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
vseq->num_units_in_tick = avctx->framerate.num;
vseq->time_scale = 2 * avctx->framerate.den;
+ mseq->fixed_frame_rate_flag = 1;
} else {
vseq->num_units_in_tick = avctx->time_base.num;
vseq->time_scale = 2 * avctx->time_base.den;
+ mseq->fixed_frame_rate_flag = 0;
+ }
+
+ if (ctx->va_rc_mode == VA_RC_CBR) {
+ priv->send_timing_sei = 1;
+ mseq->nal_hrd_parameters_present_flag = 1;
+
+ mseq->cpb_cnt_minus1 = 0;
+
+ // Try to scale these to a sensible range so that the
+ // golomb encode of the value is not overlong.
+ mseq->bit_rate_scale =
+ av_clip(av_log2(avctx->bit_rate) - 15, 0, 15);
+ mseq->bit_rate_value_minus1[0] =
+ (avctx->bit_rate >> mseq->bit_rate_scale) - 1;
+
+ mseq->cpb_size_scale =
+ av_clip(av_log2(priv->hrd_params.hrd.buffer_size) - 15, 0, 15);
+ mseq->cpb_size_value_minus1[0] =
+ (priv->hrd_params.hrd.buffer_size >> mseq->cpb_size_scale) - 1;
+
+ // CBR mode isn't actually available here, despite naming.
+ mseq->cbr_flag[0] = 0;
+
+ mseq->initial_cpb_removal_delay_length_minus1 = 23;
+ mseq->cpb_removal_delay_length_minus1 = 23;
+ mseq->dpb_output_delay_length_minus1 = 7;
+ mseq->time_offset_length = 0;
+
+ // This calculation can easily overflow 32 bits.
+ mseq->initial_cpb_removal_delay = 90000 *
+ (uint64_t)priv->hrd_params.hrd.initial_buffer_fullness /
+ priv->hrd_params.hrd.buffer_size;
+
+ mseq->initial_cpb_removal_delay_offset = 0;
+ } else {
+ priv->send_timing_sei = 0;
+ mseq->nal_hrd_parameters_present_flag = 0;
}
vseq->intra_period = ctx->p_per_i * (ctx->b_per_p + 1);
if (pic->type == PICTURE_TYPE_IDR) {
av_assert0(pic->display_order == pic->encode_order);
- priv->last_idr_frame = pic->display_order;
+ vpic->frame_num = 0;
+ priv->next_frame_num = 1;
+ priv->cpb_delay = 0;
} else {
- av_assert0(pic->display_order > priv->last_idr_frame);
+ vpic->frame_num = priv->next_frame_num;
+ if (pic->type != PICTURE_TYPE_B) {
+ // nal_ref_idc != 0
+ ++priv->next_frame_num;
+ }
+ ++priv->cpb_delay;
}
+ priv->dpb_delay = pic->display_order - pic->encode_order + 1;
- vpic->frame_num = (pic->encode_order - priv->last_idr_frame) &
+ vpic->frame_num = vpic->frame_num &
((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1);
vpic->CurrPic.picture_id = pic->recon_surface;
for (i = 0; i < pic->nb_refs; i++) {
VAAPIEncodePicture *ref = pic->refs[i];
- av_assert0(ref && ref->encode_order >= priv->last_idr_frame);
+ av_assert0(ref && ref->encode_order < pic->encode_order);
vpic->ReferenceFrames[i].picture_id = ref->recon_surface;
- vpic->ReferenceFrames[i].frame_idx =
- ref->encode_order - priv->last_idr_frame;
+ vpic->ReferenceFrames[i].frame_idx = ref->encode_order;
vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
vpic->ReferenceFrames[i].TopFieldOrderCnt = ref->display_order;
vpic->ReferenceFrames[i].BottomFieldOrderCnt = ref->display_order;
avctx->profile);
return AVERROR(EINVAL);
}
- ctx->va_entrypoint = VAEntrypointEncSlice;
+ if (opt->low_power) {
+#if VA_CHECK_VERSION(0, 39, 1)
+ ctx->va_entrypoint = VAEntrypointEncSliceLP;
+#else
+ av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
+ "supported with this VAAPI version.\n");
+ return AVERROR(EINVAL);
+#endif
+ } else {
+ ctx->va_entrypoint = VAEntrypointEncSlice;
+ }
ctx->input_width = avctx->width;
ctx->input_height = avctx->height;
.slice_header_type = VAEncPackedHeaderH264_Slice,
.write_slice_header = &vaapi_encode_h264_write_slice_header,
+
+ .write_extra_header = &vaapi_encode_h264_write_extra_header,
};
static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
{ "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },
{ "quality", "Set encode quality (trades off against speed, higher is faster)",
- OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, FLAGS },
+ OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },
+ { "low_power", "Use low-power encoding mode (experimental: only supported "
+ "on some platforms, does not support all features)",
+ OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
{ NULL },
};
projects / ffmpeg / blobdiff