diff options
| -rwxr-xr-x | configure | 3 | ||||
| -rw-r--r-- | libavcodec/Makefile | 1 | ||||
| -rw-r--r-- | libavcodec/allcodecs.c | 2 | ||||
| -rw-r--r-- | libavcodec/qsvdec_mpeg2.c | 179 |
4 files changed, 185 insertions, 0 deletions
@@ -1922,6 +1922,8 @@ mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo" mpeg1video_encoder_select="aandcttables mpegvideoenc" mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo" mpeg2video_encoder_select="aandcttables mpegvideoenc" +mpeg2_qsv_decoder_deps="libmfx" +mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser" mpeg2_qsv_encoder_deps="libmfx" mpeg2_qsv_encoder_select="qsvenc" mpeg4_decoder_select="h263_decoder mpeg4video_parser" @@ -2049,6 +2051,7 @@ mpeg2_d3d11va_hwaccel_deps="d3d11va" mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder" mpeg2_dxva2_hwaccel_deps="dxva2" mpeg2_dxva2_hwaccel_select="mpeg2video_decoder" +mpeg2_qsv_hwaccel_deps="libmfx" mpeg2_vaapi_hwaccel_deps="vaapi" mpeg2_vaapi_hwaccel_select="mpeg2video_decoder" mpeg2_vdpau_hwaccel_deps="vdpau" diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 1bfd954dbc..6493d76db6 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -307,6 +307,7 @@ OBJS-$(CONFIG_MPEG1VIDEO_DECODER) += mpeg12dec.o mpeg12.o mpeg12data.o OBJS-$(CONFIG_MPEG1VIDEO_ENCODER) += mpeg12enc.o mpeg12.o OBJS-$(CONFIG_MPEG2VIDEO_DECODER) += mpeg12dec.o mpeg12.o mpeg12data.o OBJS-$(CONFIG_MPEG2VIDEO_ENCODER) += mpeg12enc.o mpeg12.o +OBJS-$(CONFIG_MPEG2_QSV_DECODER) += qsvdec_mpeg2.o OBJS-$(CONFIG_MPEG2_QSV_ENCODER) += qsvenc_mpeg2.o OBJS-$(CONFIG_MPEG4_DECODER) += xvididct.o OBJS-$(CONFIG_MSMPEG4V1_DECODER) += msmpeg4dec.o msmpeg4.o msmpeg4data.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 67f40bfdb2..fdd8b56596 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -89,6 +89,7 @@ void avcodec_register_all(void) REGISTER_HWACCEL(MPEG1_VDPAU, mpeg1_vdpau); REGISTER_HWACCEL(MPEG2_D3D11VA, mpeg2_d3d11va); REGISTER_HWACCEL(MPEG2_DXVA2, mpeg2_dxva2); + REGISTER_HWACCEL(MPEG2_QSV, mpeg2_qsv); REGISTER_HWACCEL(MPEG2_VAAPI, mpeg2_vaapi); REGISTER_HWACCEL(MPEG2_VDPAU, mpeg2_vdpau); REGISTER_HWACCEL(MPEG4_VAAPI, mpeg4_vaapi); @@ -203,6 +204,7 @@ void avcodec_register_all(void) #endif /* FF_API_XVMC */ REGISTER_ENCDEC (MPEG1VIDEO, mpeg1video); REGISTER_ENCDEC (MPEG2VIDEO, mpeg2video); + REGISTER_DECODER(MPEG2_QSV, mpeg2_qsv); REGISTER_ENCDEC (MPEG4, mpeg4); REGISTER_DECODER(MSA1, msa1); REGISTER_DECODER(MSMPEG4V1, msmpeg4v1); diff --git a/libavcodec/qsvdec_mpeg2.c b/libavcodec/qsvdec_mpeg2.c new file mode 100644 index 0000000000..dbe882bf74 --- /dev/null +++ b/libavcodec/qsvdec_mpeg2.c @@ -0,0 +1,179 @@ +/* + * Intel MediaSDK QSV based MPEG2 decoder + * + * 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" + +typedef struct QSVMPEG2Context { + AVClass *class; + QSVContext qsv; + + AVFifoBuffer *packet_fifo; + + AVPacket input_ref; +} QSVMPEG2Context; + +static void qsv_clear_buffers(QSVMPEG2Context *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); + } + + av_packet_unref(&s->input_ref); +} + +static av_cold int qsv_decode_close(AVCodecContext *avctx) +{ + QSVMPEG2Context *s = avctx->priv_data; + + ff_qsv_decode_close(&s->qsv); + + qsv_clear_buffers(s); + + av_fifo_free(s->packet_fifo); + + return 0; +} + +static av_cold int qsv_decode_init(AVCodecContext *avctx) +{ + QSVMPEG2Context *s = avctx->priv_data; + int ret; + + s->packet_fifo = av_fifo_alloc(sizeof(AVPacket)); + if (!s->packet_fifo) { + 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) +{ + QSVMPEG2Context *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->input_ref.size <= 0) { + /* 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); + + av_packet_unref(&s->input_ref); + av_fifo_generic_read(s->packet_fifo, &s->input_ref, sizeof(s->input_ref), NULL); + } + + ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->input_ref); + if (ret < 0) + return ret; + + s->input_ref.size -= ret; + s->input_ref.data += ret; + } + + return avpkt->size; +} + +static void qsv_decode_flush(AVCodecContext *avctx) +{ + QSVMPEG2Context *s = avctx->priv_data; + + qsv_clear_buffers(s); + ff_qsv_decode_flush(avctx, &s->qsv); +} + +AVHWAccel ff_mpeg2_qsv_hwaccel = { + .name = "mpeg2_qsv", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_MPEG2VIDEO, + .pix_fmt = AV_PIX_FMT_QSV, +}; + +#define OFFSET(x) offsetof(QSVMPEG2Context, x) +#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM +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 = "mpeg2_qsv", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + +AVCodec ff_mpeg2_qsv_decoder = { + .name = "mpeg2_qsv", + .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"), + .priv_data_size = sizeof(QSVMPEG2Context), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_MPEG2VIDEO, + .init = qsv_decode_init, + .decode = qsv_decode_frame, + .flush = qsv_decode_flush, + .close = qsv_decode_close, + .capabilities = CODEC_CAP_DELAY, + .priv_class = &class, +}; |