mirror of https://git.ffmpeg.org/ffmpeg.git
289 lines
9.1 KiB
C
289 lines
9.1 KiB
C
/*
|
|
* Intel MediaSDK QSV based H.264 / HEVC decoder
|
|
*
|
|
* copyright (c) 2013 Luca Barbato
|
|
* copyright (c) 2015 Anton Khirnov
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include <mfx/mfxvideo.h>
|
|
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/fifo.h"
|
|
#include "libavutil/opt.h"
|
|
|
|
#include "avcodec.h"
|
|
#include "internal.h"
|
|
#include "qsv_internal.h"
|
|
#include "qsvdec.h"
|
|
#include "qsv.h"
|
|
|
|
enum LoadPlugin {
|
|
LOAD_PLUGIN_NONE,
|
|
LOAD_PLUGIN_HEVC_SW,
|
|
};
|
|
|
|
typedef struct QSVH2645Context {
|
|
AVClass *class;
|
|
QSVContext qsv;
|
|
|
|
int load_plugin;
|
|
|
|
// the filter for converting to Annex B
|
|
AVBitStreamFilterContext *bsf;
|
|
|
|
AVFifoBuffer *packet_fifo;
|
|
|
|
AVPacket input_ref;
|
|
AVPacket pkt_filtered;
|
|
uint8_t *filtered_data;
|
|
} QSVH2645Context;
|
|
|
|
static void qsv_clear_buffers(QSVH2645Context *s)
|
|
{
|
|
AVPacket pkt;
|
|
while (av_fifo_size(s->packet_fifo) >= sizeof(pkt)) {
|
|
av_fifo_generic_read(s->packet_fifo, &pkt, sizeof(pkt), NULL);
|
|
av_packet_unref(&pkt);
|
|
}
|
|
|
|
if (s->filtered_data != s->input_ref.data)
|
|
av_freep(&s->filtered_data);
|
|
s->filtered_data = NULL;
|
|
av_packet_unref(&s->input_ref);
|
|
}
|
|
|
|
static av_cold int qsv_decode_close(AVCodecContext *avctx)
|
|
{
|
|
QSVH2645Context *s = avctx->priv_data;
|
|
|
|
ff_qsv_decode_close(&s->qsv);
|
|
|
|
qsv_clear_buffers(s);
|
|
|
|
av_fifo_free(s->packet_fifo);
|
|
|
|
av_bitstream_filter_close(s->bsf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int qsv_decode_init(AVCodecContext *avctx)
|
|
{
|
|
QSVH2645Context *s = avctx->priv_data;
|
|
int ret;
|
|
|
|
if (avctx->codec_id == AV_CODEC_ID_HEVC && s->load_plugin != LOAD_PLUGIN_NONE) {
|
|
static const char *uid_hevcenc_sw = "15dd936825ad475ea34e35f3f54217a6";
|
|
|
|
if (s->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(&s->qsv.load_plugins);
|
|
s->qsv.load_plugins = av_strdup(uid_hevcenc_sw);
|
|
if (!s->qsv.load_plugins)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
s->packet_fifo = av_fifo_alloc(sizeof(AVPacket));
|
|
if (!s->packet_fifo) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
if (avctx->codec_id == AV_CODEC_ID_H264)
|
|
s->bsf = av_bitstream_filter_init("h264_mp4toannexb");
|
|
else
|
|
s->bsf = av_bitstream_filter_init("hevc_mp4toannexb");
|
|
if (!s->bsf) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
s->qsv.iopattern = MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
|
|
|
|
return 0;
|
|
fail:
|
|
qsv_decode_close(avctx);
|
|
return ret;
|
|
}
|
|
|
|
static int qsv_decode_frame(AVCodecContext *avctx, void *data,
|
|
int *got_frame, AVPacket *avpkt)
|
|
{
|
|
QSVH2645Context *s = avctx->priv_data;
|
|
AVFrame *frame = data;
|
|
int ret;
|
|
|
|
/* buffer the input packet */
|
|
if (avpkt->size) {
|
|
AVPacket input_ref = { 0 };
|
|
|
|
if (av_fifo_space(s->packet_fifo) < sizeof(input_ref)) {
|
|
ret = av_fifo_realloc2(s->packet_fifo,
|
|
av_fifo_size(s->packet_fifo) + sizeof(input_ref));
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = av_packet_ref(&input_ref, avpkt);
|
|
if (ret < 0)
|
|
return ret;
|
|
av_fifo_generic_write(s->packet_fifo, &input_ref, sizeof(input_ref), NULL);
|
|
}
|
|
|
|
/* process buffered data */
|
|
while (!*got_frame) {
|
|
/* prepare the input data -- convert to Annex B if needed */
|
|
if (s->pkt_filtered.size <= 0) {
|
|
int size;
|
|
|
|
/* no more data */
|
|
if (av_fifo_size(s->packet_fifo) < sizeof(AVPacket))
|
|
return avpkt->size ? avpkt->size : ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, avpkt);
|
|
|
|
if (s->filtered_data != s->input_ref.data)
|
|
av_freep(&s->filtered_data);
|
|
s->filtered_data = NULL;
|
|
av_packet_unref(&s->input_ref);
|
|
|
|
av_fifo_generic_read(s->packet_fifo, &s->input_ref, sizeof(s->input_ref), NULL);
|
|
ret = av_bitstream_filter_filter(s->bsf, avctx, NULL,
|
|
&s->filtered_data, &size,
|
|
s->input_ref.data, s->input_ref.size, 0);
|
|
if (ret < 0) {
|
|
s->filtered_data = s->input_ref.data;
|
|
size = s->input_ref.size;
|
|
}
|
|
s->pkt_filtered = s->input_ref;
|
|
s->pkt_filtered.data = s->filtered_data;
|
|
s->pkt_filtered.size = size;
|
|
}
|
|
|
|
ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->pkt_filtered);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
s->pkt_filtered.size -= ret;
|
|
s->pkt_filtered.data += ret;
|
|
}
|
|
|
|
return avpkt->size;
|
|
}
|
|
|
|
static void qsv_decode_flush(AVCodecContext *avctx)
|
|
{
|
|
QSVH2645Context *s = avctx->priv_data;
|
|
|
|
qsv_clear_buffers(s);
|
|
ff_qsv_decode_flush(avctx, &s->qsv);
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(QSVH2645Context, x)
|
|
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
|
|
|
|
#if CONFIG_HEVC_QSV_DECODER
|
|
AVHWAccel ff_hevc_qsv_hwaccel = {
|
|
.name = "hevc_qsv",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_HEVC,
|
|
.pix_fmt = AV_PIX_FMT_QSV,
|
|
};
|
|
|
|
static const AVOption hevc_options[] = {
|
|
{ "async_depth", "Internal parallelization depth, the higher the value the higher the latency.", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VD },
|
|
|
|
{ "load_plugin", "A user plugin to load in an internal session", OFFSET(load_plugin), AV_OPT_TYPE_INT, { .i64 = LOAD_PLUGIN_HEVC_SW }, LOAD_PLUGIN_NONE, LOAD_PLUGIN_HEVC_SW, VD, "load_plugin" },
|
|
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_NONE }, 0, 0, VD, "load_plugin" },
|
|
{ "hevc_sw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_SW }, 0, 0, VD, "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, VD },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass hevc_class = {
|
|
.class_name = "hevc_qsv",
|
|
.item_name = av_default_item_name,
|
|
.option = hevc_options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
AVCodec ff_hevc_qsv_decoder = {
|
|
.name = "hevc_qsv",
|
|
.long_name = NULL_IF_CONFIG_SMALL("HEVC (Intel Quick Sync Video acceleration)"),
|
|
.priv_data_size = sizeof(QSVH2645Context),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_HEVC,
|
|
.init = qsv_decode_init,
|
|
.decode = qsv_decode_frame,
|
|
.flush = qsv_decode_flush,
|
|
.close = qsv_decode_close,
|
|
.capabilities = CODEC_CAP_DELAY | CODEC_CAP_DR1,
|
|
.priv_class = &hevc_class,
|
|
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
|
|
AV_PIX_FMT_QSV,
|
|
AV_PIX_FMT_NONE },
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_H264_QSV_DECODER
|
|
AVHWAccel ff_h264_qsv_hwaccel = {
|
|
.name = "h264_qsv",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_H264,
|
|
.pix_fmt = AV_PIX_FMT_QSV,
|
|
};
|
|
|
|
static const AVOption options[] = {
|
|
{ "async_depth", "Internal parallelization depth, the higher the value the higher the latency.", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VD },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass class = {
|
|
.class_name = "h264_qsv",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
AVCodec ff_h264_qsv_decoder = {
|
|
.name = "h264_qsv",
|
|
.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration)"),
|
|
.priv_data_size = sizeof(QSVH2645Context),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_H264,
|
|
.init = qsv_decode_init,
|
|
.decode = qsv_decode_frame,
|
|
.flush = qsv_decode_flush,
|
|
.close = qsv_decode_close,
|
|
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1,
|
|
.priv_class = &class,
|
|
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
|
|
AV_PIX_FMT_QSV,
|
|
AV_PIX_FMT_NONE },
|
|
};
|
|
#endif
|