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FFmpeg/libavcodec/qsvenc_hevc.c
Haihao Xiang 9583e66ea0 qsvenc_hevc: allow user set more coding options 
The SDK supports NalHrdConformance, RecoveryPointSEI and AUDelimiter for
hevc encoder, so we may allow user to set these coding options like as
what we did for h264_qsv encoder.

Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
Signed-off-by: Zhong Li <zhongli_dev@126.com>
2021-07-02 23:38:36 +08:00

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/*
* Intel MediaSDK QSV based HEVC encoder
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <sys/types.h>
#include <mfx/mfxvideo.h>
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
#include "hevc.h"
#include "hevcdec.h"
#include "h2645_parse.h"
#include "internal.h"
#include "qsv.h"
#include "qsv_internal.h"
#include "qsvenc.h"
enum LoadPlugin {
LOAD_PLUGIN_NONE,
LOAD_PLUGIN_HEVC_SW,
LOAD_PLUGIN_HEVC_HW,
};
typedef struct QSVHEVCEncContext {
AVClass *class;
QSVEncContext qsv;
int load_plugin;
} QSVHEVCEncContext;
static int generate_fake_vps(QSVEncContext *q, AVCodecContext *avctx)
{
GetByteContext gbc;
PutByteContext pbc;
GetBitContext gb;
H2645RBSP sps_rbsp = { NULL };
H2645NAL sps_nal = { NULL };
HEVCSPS sps = { 0 };
HEVCVPS vps = { 0 };
uint8_t vps_buf[128], vps_rbsp_buf[128];
uint8_t *new_extradata;
unsigned int sps_id;
int ret, i, type, vps_size;
if (!avctx->extradata_size) {
av_log(avctx, AV_LOG_ERROR, "No extradata returned from libmfx\n");
return AVERROR_UNKNOWN;
}
av_fast_padded_malloc(&sps_rbsp.rbsp_buffer, &sps_rbsp.rbsp_buffer_alloc_size, avctx->extradata_size);
if (!sps_rbsp.rbsp_buffer)
return AVERROR(ENOMEM);
/* parse the SPS */
ret = ff_h2645_extract_rbsp(avctx->extradata + 4, avctx->extradata_size - 4, &sps_rbsp, &sps_nal, 1);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error unescaping the SPS buffer\n");
return ret;
}
ret = init_get_bits8(&gb, sps_nal.data, sps_nal.size);
if (ret < 0) {
av_freep(&sps_rbsp.rbsp_buffer);
return ret;
}
get_bits(&gb, 1);
type = get_bits(&gb, 6);
if (type != HEVC_NAL_SPS) {
av_log(avctx, AV_LOG_ERROR, "Unexpected NAL type in the extradata: %d\n",
type);
av_freep(&sps_rbsp.rbsp_buffer);
return AVERROR_INVALIDDATA;
}
get_bits(&gb, 9);
ret = ff_hevc_parse_sps(&sps, &gb, &sps_id, 0, NULL, avctx);
av_freep(&sps_rbsp.rbsp_buffer);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error parsing the SPS\n");
return ret;
}
/* generate the VPS */
vps.vps_max_layers = 1;
vps.vps_max_sub_layers = sps.max_sub_layers;
vps.vps_temporal_id_nesting_flag = sps.temporal_id_nesting_flag;
memcpy(&vps.ptl, &sps.ptl, sizeof(vps.ptl));
vps.vps_sub_layer_ordering_info_present_flag = 1;
for (i = 0; i < HEVC_MAX_SUB_LAYERS; i++) {
vps.vps_max_dec_pic_buffering[i] = sps.temporal_layer[i].max_dec_pic_buffering;
vps.vps_num_reorder_pics[i] = sps.temporal_layer[i].num_reorder_pics;
vps.vps_max_latency_increase[i] = sps.temporal_layer[i].max_latency_increase;
}
vps.vps_num_layer_sets = 1;
vps.vps_timing_info_present_flag = sps.vui.vui_timing_info_present_flag;
vps.vps_num_units_in_tick = sps.vui.vui_num_units_in_tick;
vps.vps_time_scale = sps.vui.vui_time_scale;
vps.vps_poc_proportional_to_timing_flag = sps.vui.vui_poc_proportional_to_timing_flag;
vps.vps_num_ticks_poc_diff_one = sps.vui.vui_num_ticks_poc_diff_one_minus1 + 1;
vps.vps_num_hrd_parameters = 0;
/* generate the encoded RBSP form of the VPS */
ret = ff_hevc_encode_nal_vps(&vps, sps.vps_id, vps_rbsp_buf, sizeof(vps_rbsp_buf));
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error writing the VPS\n");
return ret;
}
/* escape and add the startcode */
bytestream2_init(&gbc, vps_rbsp_buf, ret);
bytestream2_init_writer(&pbc, vps_buf, sizeof(vps_buf));
bytestream2_put_be32(&pbc, 1); // startcode
bytestream2_put_byte(&pbc, HEVC_NAL_VPS << 1); // NAL
bytestream2_put_byte(&pbc, 1); // header
while (bytestream2_get_bytes_left(&gbc)) {
if (bytestream2_get_bytes_left(&gbc) >= 3 && bytestream2_peek_be24(&gbc) <= 3) {
bytestream2_put_be24(&pbc, 3);
bytestream2_skip(&gbc, 2);
} else
bytestream2_put_byte(&pbc, bytestream2_get_byte(&gbc));
}
vps_size = bytestream2_tell_p(&pbc);
new_extradata = av_mallocz(vps_size + avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!new_extradata)
return AVERROR(ENOMEM);
memcpy(new_extradata, vps_buf, vps_size);
memcpy(new_extradata + vps_size, avctx->extradata, avctx->extradata_size);
av_freep(&avctx->extradata);
avctx->extradata = new_extradata;
avctx->extradata_size += vps_size;
return 0;
}
static av_cold int qsv_enc_init(AVCodecContext *avctx)
{
QSVHEVCEncContext *q = avctx->priv_data;
int ret;
if (q->load_plugin != LOAD_PLUGIN_NONE) {
static const char * const uid_hevcenc_sw = "2fca99749fdb49aeb121a5b63ef568f7";
static const char * const uid_hevcenc_hw = "6fadc791a0c2eb479ab6dcd5ea9da347";
if (q->qsv.load_plugins[0]) {
av_log(avctx, AV_LOG_WARNING,
"load_plugins is not empty, but load_plugin is not set to 'none'."
"The load_plugin value will be ignored.\n");
} else {
av_freep(&q->qsv.load_plugins);
if (q->load_plugin == LOAD_PLUGIN_HEVC_SW)
q->qsv.load_plugins = av_strdup(uid_hevcenc_sw);
else
q->qsv.load_plugins = av_strdup(uid_hevcenc_hw);
if (!q->qsv.load_plugins)
return AVERROR(ENOMEM);
}
}
// HEVC and H264 meaning of the value is shifted by 1, make it consistent
q->qsv.idr_interval++;
ret = ff_qsv_enc_init(avctx, &q->qsv);
if (ret < 0)
return ret;
if (!q->qsv.hevc_vps) {
ret = generate_fake_vps(&q->qsv, avctx);
if (ret < 0) {
ff_qsv_enc_close(avctx, &q->qsv);
return ret;
}
}
return 0;
}
static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *frame, int *got_packet)
{
QSVHEVCEncContext *q = avctx->priv_data;
return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
}
static av_cold int qsv_enc_close(AVCodecContext *avctx)
{
QSVHEVCEncContext *q = avctx->priv_data;
return ff_qsv_enc_close(avctx, &q->qsv);
}
#define OFFSET(x) offsetof(QSVHEVCEncContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
QSV_COMMON_OPTS
{ "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, -1, INT_MAX, VE, "idr_interval" },
{ "begin_only", "Output an IDR-frame only at the beginning of the stream", 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, 0, 0, VE, "idr_interval" },
{ "load_plugin", "A user plugin to load in an internal session", OFFSET(load_plugin), AV_OPT_TYPE_INT, { .i64 = LOAD_PLUGIN_HEVC_HW }, LOAD_PLUGIN_NONE, LOAD_PLUGIN_HEVC_HW, VE, "load_plugin" },
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_NONE }, 0, 0, VE, "load_plugin" },
{ "hevc_sw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_SW }, 0, 0, VE, "load_plugin" },
{ "hevc_hw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_HW }, 0, 0, VE, "load_plugin" },
{ "load_plugins", "A :-separate list of hexadecimal plugin UIDs to load in an internal session",
OFFSET(qsv.load_plugins), AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VE },
{ "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
{ "unknown", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" },
{ "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
{ "main10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN10 }, INT_MIN, INT_MAX, VE, "profile" },
{ "mainsp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAINSP }, INT_MIN, INT_MAX, VE, "profile" },
{ "rext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_REXT }, INT_MIN, INT_MAX, VE, "profile" },
{ "gpb", "1: GPB (generalized P/B frame); 0: regular P frame", OFFSET(qsv.gpb), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},
{ "tile_cols", "Number of columns for tiled encoding", OFFSET(qsv.tile_cols), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, UINT16_MAX, VE },
{ "tile_rows", "Number of rows for tiled encoding", OFFSET(qsv.tile_rows), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, UINT16_MAX, VE },
{ "recovery_point_sei", "Insert recovery point SEI messages", OFFSET(qsv.recovery_point_sei), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
{ "aud", "Insert the Access Unit Delimiter NAL", OFFSET(qsv.aud), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE},
{ NULL },
};
static const AVClass class = {
.class_name = "hevc_qsv encoder",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
static const AVCodecDefault qsv_enc_defaults[] = {
{ "b", "1M" },
{ "refs", "0" },
// same as the x264 default
{ "g", "248" },
{ "bf", "8" },
{ "qmin", "-1" },
{ "qmax", "-1" },
{ "trellis", "-1" },
{ "flags", "+cgop" },
{ NULL },
};
const AVCodec ff_hevc_qsv_encoder = {
.name = "hevc_qsv",
.long_name = NULL_IF_CONFIG_SMALL("HEVC (Intel Quick Sync Video acceleration)"),
.priv_data_size = sizeof(QSVHEVCEncContext),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_HEVC,
.init = qsv_enc_init,
.encode2 = qsv_enc_frame,
.close = qsv_enc_close,
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HYBRID,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
AV_PIX_FMT_P010,
AV_PIX_FMT_QSV,
AV_PIX_FMT_NONE },
.priv_class = &class,
.defaults = qsv_enc_defaults,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
.wrapper_name = "qsv",
.hw_configs = ff_qsv_enc_hw_configs,
};
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