mirror of
https://github.com/mpv-player/mpv
synced 2024-10-30 04:46:41 +01:00
5baf74fa24
Remove coded_width and coded_height. This was originally added in commitfd7dde40
, when BITMAPINFOHEADER was killed. The separate fields became redundant in commite68f4be1
. Remove them (nothing passed to the decoders actually changes with _this_ commit).
724 lines
22 KiB
C
724 lines
22 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <time.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include <libavutil/common.h>
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#include <libavutil/opt.h>
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#include <libavutil/intreadwrite.h>
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#include <libavutil/pixdesc.h>
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#include "talloc.h"
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#include "config.h"
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#include "common/msg.h"
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#include "options/options.h"
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#include "misc/bstr.h"
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#include "common/av_common.h"
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#include "common/codecs.h"
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#include "video/fmt-conversion.h"
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#include "vd.h"
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#include "video/img_format.h"
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#include "video/filter/vf.h"
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#include "video/decode/dec_video.h"
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#include "demux/stheader.h"
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#include "demux/packet.h"
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#include "video/csputils.h"
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#include "video/sws_utils.h"
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#include "lavc.h"
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#if AVPALETTE_SIZE != MP_PALETTE_SIZE
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#error palette too large, adapt video/mp_image.h:MP_PALETTE_SIZE
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#endif
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#include "options/m_option.h"
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static void init_avctx(struct dec_video *vd, const char *decoder,
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struct vd_lavc_hwdec *hwdec);
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static void uninit_avctx(struct dec_video *vd);
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static int get_buffer2_hwdec(AVCodecContext *avctx, AVFrame *pic, int flags);
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static enum AVPixelFormat get_format_hwdec(struct AVCodecContext *avctx,
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const enum AVPixelFormat *pix_fmt);
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#define OPT_BASE_STRUCT struct vd_lavc_params
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struct vd_lavc_params {
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int fast;
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int show_all;
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int skip_loop_filter;
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int skip_idct;
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int skip_frame;
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int framedrop;
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int threads;
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int bitexact;
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int check_hw_profile;
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char **avopts;
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};
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static const struct m_opt_choice_alternatives discard_names[] = {
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{"none", AVDISCARD_NONE},
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{"default", AVDISCARD_DEFAULT},
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{"nonref", AVDISCARD_NONREF},
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{"bidir", AVDISCARD_BIDIR},
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{"nonkey", AVDISCARD_NONKEY},
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{"all", AVDISCARD_ALL},
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{0}
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};
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#define OPT_DISCARD(name, field, flags) \
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OPT_GENERAL(int, name, field, flags, .type = CONF_TYPE_CHOICE, \
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.priv = (void *)discard_names)
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const struct m_sub_options vd_lavc_conf = {
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.opts = (const m_option_t[]){
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OPT_FLAG("fast", fast, 0),
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OPT_FLAG("show-all", show_all, 0),
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OPT_DISCARD("skiploopfilter", skip_loop_filter, 0),
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OPT_DISCARD("skipidct", skip_idct, 0),
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OPT_DISCARD("skipframe", skip_frame, 0),
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OPT_DISCARD("framedrop", framedrop, 0),
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OPT_INTRANGE("threads", threads, 0, 0, 16),
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OPT_FLAG("bitexact", bitexact, 0),
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OPT_FLAG("check-hw-profile", check_hw_profile, 0),
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OPT_KEYVALUELIST("o", avopts, 0),
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{0}
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},
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.size = sizeof(struct vd_lavc_params),
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.defaults = &(const struct vd_lavc_params){
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.show_all = 0,
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.check_hw_profile = 1,
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.skip_loop_filter = AVDISCARD_DEFAULT,
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.skip_idct = AVDISCARD_DEFAULT,
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.skip_frame = AVDISCARD_DEFAULT,
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.framedrop = AVDISCARD_NONREF,
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},
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};
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const struct vd_lavc_hwdec mp_vd_lavc_vdpau;
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const struct vd_lavc_hwdec mp_vd_lavc_vda;
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const struct vd_lavc_hwdec mp_vd_lavc_vaapi;
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const struct vd_lavc_hwdec mp_vd_lavc_vaapi_copy;
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const struct vd_lavc_hwdec mp_vd_lavc_dxva2_copy;
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static const struct vd_lavc_hwdec *const hwdec_list[] = {
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#if HAVE_VDPAU_HWACCEL
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&mp_vd_lavc_vdpau,
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#endif
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#if HAVE_VDA_HWACCEL
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&mp_vd_lavc_vda,
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#endif
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#if HAVE_VAAPI_HWACCEL
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&mp_vd_lavc_vaapi,
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&mp_vd_lavc_vaapi_copy,
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#endif
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#if HAVE_DXVA2_HWACCEL
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&mp_vd_lavc_dxva2_copy,
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#endif
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NULL
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};
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static struct vd_lavc_hwdec *find_hwcodec(enum hwdec_type api)
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{
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for (int n = 0; hwdec_list[n]; n++) {
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if (hwdec_list[n]->type == api)
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return (struct vd_lavc_hwdec *)hwdec_list[n];
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}
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return NULL;
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}
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static bool hwdec_codec_allowed(struct dec_video *vd, const char *codec)
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{
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bstr s = bstr0(vd->opts->hwdec_codecs);
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while (s.len) {
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bstr item;
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bstr_split_tok(s, ",", &item, &s);
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if (bstr_equals0(item, "all") || bstr_equals0(item, codec))
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return true;
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}
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return false;
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}
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static void hwdec_lock(struct lavc_ctx *ctx)
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{
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if (ctx->hwdec && ctx->hwdec->lock)
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ctx->hwdec->lock(ctx);
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}
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static void hwdec_unlock(struct lavc_ctx *ctx)
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{
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if (ctx->hwdec && ctx->hwdec->unlock)
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ctx->hwdec->unlock(ctx);
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}
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// Find the correct profile entry for the current codec and profile.
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// Assumes the table has higher profiles first (for each codec).
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const struct hwdec_profile_entry *hwdec_find_profile(
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struct lavc_ctx *ctx, const struct hwdec_profile_entry *table)
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{
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assert(AV_CODEC_ID_NONE == 0);
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struct vd_lavc_params *lavc_param = ctx->opts->vd_lavc_params;
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enum AVCodecID codec = ctx->avctx->codec_id;
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int profile = ctx->avctx->profile;
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// Assume nobody cares about these aspects of the profile
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if (codec == AV_CODEC_ID_H264) {
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if (profile == FF_PROFILE_H264_CONSTRAINED_BASELINE)
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profile = FF_PROFILE_H264_MAIN;
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}
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for (int n = 0; table[n].av_codec; n++) {
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if (table[n].av_codec == codec) {
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if (table[n].ff_profile == FF_PROFILE_UNKNOWN ||
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profile == FF_PROFILE_UNKNOWN ||
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table[n].ff_profile == profile ||
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!lavc_param->check_hw_profile)
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return &table[n];
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}
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}
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return NULL;
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}
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// Check codec support, without checking the profile.
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bool hwdec_check_codec_support(const char *decoder,
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const struct hwdec_profile_entry *table)
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{
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enum AVCodecID codec = mp_codec_to_av_codec_id(decoder);
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for (int n = 0; table[n].av_codec; n++) {
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if (table[n].av_codec == codec)
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return true;
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}
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return false;
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}
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int hwdec_get_max_refs(struct lavc_ctx *ctx)
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{
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return ctx->avctx->codec_id == AV_CODEC_ID_H264 ? 16 : 2;
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}
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void hwdec_request_api(struct mp_hwdec_info *info, const char *api_name)
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{
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if (info && info->load_api)
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info->load_api(info, api_name);
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}
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static int hwdec_probe(struct vd_lavc_hwdec *hwdec, struct mp_hwdec_info *info,
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const char *decoder)
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{
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int r = 0;
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if (hwdec->probe)
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r = hwdec->probe(hwdec, info, decoder);
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return r;
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}
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static struct vd_lavc_hwdec *probe_hwdec(struct dec_video *vd, bool autoprobe,
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enum hwdec_type api,
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const char *decoder)
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{
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struct vd_lavc_hwdec *hwdec = find_hwcodec(api);
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if (!hwdec) {
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MP_VERBOSE(vd, "Requested hardware decoder not compiled.\n");
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return NULL;
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}
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int r = hwdec_probe(hwdec, vd->hwdec_info, decoder);
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if (r == HWDEC_ERR_EMULATED) {
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if (autoprobe)
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return NULL;
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// User requested this explicitly.
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MP_WARN(vd, "Using emulated hardware decoding API.\n");
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r = 0;
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}
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if (r >= 0) {
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return hwdec;
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} else if (r == HWDEC_ERR_NO_CODEC) {
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MP_VERBOSE(vd, "Hardware decoder '%s' not found in "
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"libavcodec.\n", decoder);
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} else if (r == HWDEC_ERR_NO_CTX && !autoprobe) {
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MP_WARN(vd, "VO does not support requested hardware decoder.\n");
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}
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return NULL;
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}
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static void uninit(struct dec_video *vd)
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{
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uninit_avctx(vd);
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talloc_free(vd->priv);
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}
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static int init(struct dec_video *vd, const char *decoder)
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{
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vd_ffmpeg_ctx *ctx;
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ctx = vd->priv = talloc_zero(NULL, vd_ffmpeg_ctx);
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ctx->log = vd->log;
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ctx->opts = vd->opts;
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ctx->selected_hwdec = vd->opts->hwdec_api;
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if (bstr_endswith0(bstr0(decoder), "_vdpau")) {
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MP_WARN(vd, "VDPAU decoder '%s' was requested. "
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"This way of enabling hardware\ndecoding is not supported "
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"anymore. Use --hwdec=vdpau instead.\nThe --hwdec-codec=... "
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"option can be used to restrict which codecs are\nenabled, "
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"otherwise all hardware decoding is tried for all codecs.\n",
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decoder);
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uninit(vd);
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return 0;
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}
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struct vd_lavc_hwdec *hwdec = NULL;
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if (hwdec_codec_allowed(vd, decoder)) {
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if (vd->opts->hwdec_api == HWDEC_AUTO) {
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for (int n = 0; hwdec_list[n]; n++) {
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hwdec = probe_hwdec(vd, true, hwdec_list[n]->type, decoder);
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if (hwdec)
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break;
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}
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} else if (vd->opts->hwdec_api != HWDEC_NONE) {
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hwdec = probe_hwdec(vd, false, vd->opts->hwdec_api, decoder);
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}
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} else {
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MP_VERBOSE(vd, "Not trying to use hardware decoding: "
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"codec %s is blacklisted by user.\n", decoder);
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}
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if (hwdec) {
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ctx->software_fallback_decoder = talloc_strdup(ctx, decoder);
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MP_INFO(vd, "Trying to use hardware decoding.\n");
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} else if (vd->opts->hwdec_api != HWDEC_NONE) {
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MP_INFO(vd, "Using software decoding.\n");
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}
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init_avctx(vd, decoder, hwdec);
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if (!ctx->avctx) {
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if (ctx->software_fallback_decoder) {
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MP_ERR(vd, "Error initializing hardware decoding, "
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"falling back to software decoding.\n");
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decoder = ctx->software_fallback_decoder;
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ctx->software_fallback_decoder = NULL;
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init_avctx(vd, decoder, NULL);
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}
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if (!ctx->avctx) {
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uninit(vd);
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return 0;
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}
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}
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if (ctx->avctx->bit_rate != 0)
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vd->bitrate = ctx->avctx->bit_rate;
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return 1;
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}
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static void init_avctx(struct dec_video *vd, const char *decoder,
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struct vd_lavc_hwdec *hwdec)
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{
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vd_ffmpeg_ctx *ctx = vd->priv;
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struct vd_lavc_params *lavc_param = vd->opts->vd_lavc_params;
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bool mp_rawvideo = false;
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struct sh_stream *sh = vd->header;
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assert(!ctx->avctx);
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if (strcmp(decoder, "mp-rawvideo") == 0) {
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mp_rawvideo = true;
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decoder = "rawvideo";
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}
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AVCodec *lavc_codec = avcodec_find_decoder_by_name(decoder);
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if (!lavc_codec)
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return;
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ctx->hwdec_info = vd->hwdec_info;
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ctx->pix_fmt = AV_PIX_FMT_NONE;
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ctx->hwdec = hwdec;
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ctx->hwdec_fmt = 0;
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ctx->avctx = avcodec_alloc_context3(lavc_codec);
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AVCodecContext *avctx = ctx->avctx;
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if (!ctx->avctx)
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goto error;
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avctx->bit_rate = 0;
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avctx->opaque = vd;
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avctx->codec_type = AVMEDIA_TYPE_VIDEO;
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avctx->codec_id = lavc_codec->id;
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avctx->refcounted_frames = 1;
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ctx->pic = av_frame_alloc();
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if (!ctx->pic)
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goto error;
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if (ctx->hwdec) {
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avctx->thread_count = 1;
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avctx->get_format = get_format_hwdec;
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avctx->get_buffer2 = get_buffer2_hwdec;
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if (ctx->hwdec->init(ctx) < 0)
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goto error;
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} else {
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mp_set_avcodec_threads(vd->log, avctx, lavc_param->threads);
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}
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avctx->flags |= lavc_param->bitexact ? CODEC_FLAG_BITEXACT : 0;
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avctx->flags2 |= lavc_param->fast ? CODEC_FLAG2_FAST : 0;
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if (lavc_param->show_all) {
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#ifdef CODEC_FLAG2_SHOW_ALL
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avctx->flags2 |= CODEC_FLAG2_SHOW_ALL; // ffmpeg only?
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#endif
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#ifdef CODEC_FLAG_OUTPUT_CORRUPT
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avctx->flags |= CODEC_FLAG_OUTPUT_CORRUPT; // added with Libav 10
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#endif
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}
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avctx->skip_loop_filter = lavc_param->skip_loop_filter;
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avctx->skip_idct = lavc_param->skip_idct;
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avctx->skip_frame = lavc_param->skip_frame;
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mp_set_avopts(vd->log, avctx, lavc_param->avopts);
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// Do this after the above avopt handling in case it changes values
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ctx->skip_frame = avctx->skip_frame;
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|
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avctx->codec_tag = sh->format;
|
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avctx->coded_width = sh->video->disp_w;
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avctx->coded_height = sh->video->disp_h;
|
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avctx->bits_per_coded_sample = sh->video->bits_per_coded_sample;
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|
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mp_lavc_set_extradata(avctx, sh->video->extradata, sh->video->extradata_len);
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|
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if (mp_rawvideo) {
|
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avctx->pix_fmt = imgfmt2pixfmt(sh->format);
|
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avctx->codec_tag = 0;
|
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if (avctx->pix_fmt == AV_PIX_FMT_NONE && sh->format)
|
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MP_ERR(vd, "Image format %s not supported by lavc.\n",
|
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mp_imgfmt_to_name(sh->format));
|
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}
|
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|
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if (sh->lav_headers)
|
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mp_copy_lav_codec_headers(avctx, sh->lav_headers);
|
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|
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/* open it */
|
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if (avcodec_open2(avctx, lavc_codec, NULL) < 0)
|
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goto error;
|
|
|
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return;
|
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|
|
error:
|
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MP_ERR(vd, "Could not open codec.\n");
|
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uninit_avctx(vd);
|
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}
|
|
|
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static void uninit_avctx(struct dec_video *vd)
|
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{
|
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vd_ffmpeg_ctx *ctx = vd->priv;
|
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AVCodecContext *avctx = ctx->avctx;
|
|
|
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if (avctx) {
|
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if (avctx->codec && avcodec_close(avctx) < 0)
|
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MP_ERR(vd, "Could not close codec.\n");
|
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|
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av_freep(&avctx->extradata);
|
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av_freep(&avctx->slice_offset);
|
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}
|
|
|
|
if (ctx->hwdec && ctx->hwdec->uninit)
|
|
ctx->hwdec->uninit(ctx);
|
|
|
|
av_freep(&ctx->avctx);
|
|
|
|
av_frame_free(&ctx->pic);
|
|
}
|
|
|
|
static void update_image_params(struct dec_video *vd, AVFrame *frame,
|
|
struct mp_image_params *out_params)
|
|
{
|
|
vd_ffmpeg_ctx *ctx = vd->priv;
|
|
struct MPOpts *opts = ctx->opts;
|
|
int width = frame->width;
|
|
int height = frame->height;
|
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float aspect = av_q2d(frame->sample_aspect_ratio) * width / height;
|
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int pix_fmt = frame->format;
|
|
|
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if (pix_fmt != ctx->pix_fmt) {
|
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ctx->pix_fmt = pix_fmt;
|
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ctx->best_csp = pixfmt2imgfmt(pix_fmt);
|
|
if (!ctx->best_csp)
|
|
MP_ERR(vd, "lavc pixel format %s not supported.\n",
|
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av_get_pix_fmt_name(pix_fmt));
|
|
}
|
|
|
|
int d_w, d_h;
|
|
vf_set_dar(&d_w, &d_h, width, height, aspect);
|
|
|
|
*out_params = (struct mp_image_params) {
|
|
.imgfmt = ctx->best_csp,
|
|
.w = width,
|
|
.h = height,
|
|
.d_w = d_w,
|
|
.d_h = d_h,
|
|
.colorspace = avcol_spc_to_mp_csp(ctx->avctx->colorspace),
|
|
.colorlevels = avcol_range_to_mp_csp_levels(ctx->avctx->color_range),
|
|
.primaries = avcol_pri_to_mp_csp_prim(ctx->avctx->color_primaries),
|
|
.chroma_location =
|
|
avchroma_location_to_mp(ctx->avctx->chroma_sample_location),
|
|
.rotate = vd->header->video->rotate,
|
|
.stereo_in = vd->header->video->stereo_mode,
|
|
};
|
|
|
|
if (opts->video_rotate < 0) {
|
|
out_params->rotate = 0;
|
|
} else {
|
|
out_params->rotate = (out_params->rotate + opts->video_rotate) % 360;
|
|
}
|
|
out_params->stereo_out = opts->video_stereo_mode;
|
|
}
|
|
|
|
static enum AVPixelFormat get_format_hwdec(struct AVCodecContext *avctx,
|
|
const enum AVPixelFormat *fmt)
|
|
{
|
|
struct dec_video *vd = avctx->opaque;
|
|
vd_ffmpeg_ctx *ctx = vd->priv;
|
|
|
|
MP_VERBOSE(vd, "Pixel formats supported by decoder:");
|
|
for (int i = 0; fmt[i] != AV_PIX_FMT_NONE; i++)
|
|
MP_VERBOSE(vd, " %s", av_get_pix_fmt_name(fmt[i]));
|
|
MP_VERBOSE(vd, "\n");
|
|
|
|
assert(ctx->hwdec);
|
|
|
|
if (ctx->hwdec->image_format) {
|
|
for (int i = 0; fmt[i] != AV_PIX_FMT_NONE; i++) {
|
|
if (ctx->hwdec->image_format == pixfmt2imgfmt(fmt[i])) {
|
|
// There could be more reasons for a change, and it's possible
|
|
// that we miss some. (Might also depend on the hwaccel type.)
|
|
bool change =
|
|
ctx->hwdec_w != avctx->width ||
|
|
ctx->hwdec_h != avctx->height ||
|
|
ctx->hwdec_fmt != ctx->hwdec->image_format ||
|
|
ctx->hwdec_profile != avctx->profile;
|
|
ctx->hwdec_w = avctx->width;
|
|
ctx->hwdec_h = avctx->height;
|
|
ctx->hwdec_fmt = ctx->hwdec->image_format;
|
|
ctx->hwdec_profile = avctx->profile;
|
|
if (ctx->hwdec->init_decoder && change) {
|
|
if (ctx->hwdec->init_decoder(ctx, ctx->hwdec_fmt,
|
|
ctx->hwdec_w, ctx->hwdec_h) < 0)
|
|
{
|
|
ctx->hwdec_fmt = 0;
|
|
break;
|
|
}
|
|
}
|
|
return fmt[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
return AV_PIX_FMT_NONE;
|
|
}
|
|
|
|
static struct mp_image *get_surface_hwdec(struct dec_video *vd, AVFrame *pic)
|
|
{
|
|
vd_ffmpeg_ctx *ctx = vd->priv;
|
|
|
|
/* Decoders using ffmpeg's hwaccel architecture (everything except vdpau)
|
|
* can fall back to software decoding automatically. However, we don't
|
|
* want that: multithreading was already disabled. ffmpeg's fallback
|
|
* isn't really useful, and causes more trouble than it helps.
|
|
*
|
|
* Instead of trying to "adjust" the thread_count fields in avctx, let
|
|
* decoding fail hard. Then decode_with_fallback() will do our own software
|
|
* fallback. Fully reinitializing the decoder is saner, and will probably
|
|
* save us from other weird corner cases, like having to "reroute" the
|
|
* get_buffer callback.
|
|
*/
|
|
int imgfmt = pixfmt2imgfmt(pic->format);
|
|
if (!IMGFMT_IS_HWACCEL(imgfmt) || !ctx->hwdec)
|
|
return NULL;
|
|
|
|
// Using frame->width/height is bad. For non-mod 16 video (which would
|
|
// require alignment of frame sizes) we want the decoded size, not the
|
|
// aligned size. At least vdpau needs this: the video mixer is created
|
|
// with decoded size, and the video surfaces must have matching size.
|
|
int w = ctx->avctx->width;
|
|
int h = ctx->avctx->height;
|
|
|
|
if (ctx->hwdec->init_decoder) {
|
|
if (imgfmt != ctx->hwdec_fmt && w != ctx->hwdec_w && h != ctx->hwdec_h)
|
|
return NULL;
|
|
}
|
|
|
|
struct mp_image *mpi = ctx->hwdec->allocate_image(ctx, imgfmt, w, h);
|
|
|
|
if (mpi) {
|
|
for (int i = 0; i < 4; i++)
|
|
pic->data[i] = mpi->planes[i];
|
|
}
|
|
|
|
return mpi;
|
|
}
|
|
|
|
static void free_mpi(void *opaque, uint8_t *data)
|
|
{
|
|
struct mp_image *mpi = opaque;
|
|
talloc_free(mpi);
|
|
}
|
|
|
|
static int get_buffer2_hwdec(AVCodecContext *avctx, AVFrame *pic, int flags)
|
|
{
|
|
struct dec_video *vd = avctx->opaque;
|
|
|
|
struct mp_image *mpi = get_surface_hwdec(vd, pic);
|
|
if (!mpi)
|
|
return -1;
|
|
|
|
pic->buf[0] = av_buffer_create(NULL, 0, free_mpi, mpi, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decode(struct dec_video *vd, struct demux_packet *packet,
|
|
int flags, struct mp_image **out_image)
|
|
{
|
|
int got_picture = 0;
|
|
int ret;
|
|
vd_ffmpeg_ctx *ctx = vd->priv;
|
|
AVCodecContext *avctx = ctx->avctx;
|
|
struct vd_lavc_params *lavc_param = ctx->opts->vd_lavc_params;
|
|
AVPacket pkt;
|
|
|
|
if (flags) {
|
|
// hr-seek framedrop vs. normal framedrop
|
|
avctx->skip_frame = flags == 2 ? AVDISCARD_NONREF : lavc_param->framedrop;
|
|
} else {
|
|
// normal playback
|
|
avctx->skip_frame = ctx->skip_frame;
|
|
}
|
|
|
|
mp_set_av_packet(&pkt, packet, NULL);
|
|
|
|
hwdec_lock(ctx);
|
|
ret = avcodec_decode_video2(avctx, ctx->pic, &got_picture, &pkt);
|
|
hwdec_unlock(ctx);
|
|
if (ret < 0) {
|
|
MP_WARN(vd, "Error while decoding frame!\n");
|
|
return -1;
|
|
}
|
|
|
|
// Skipped frame, or delayed output due to multithreaded decoding.
|
|
if (!got_picture)
|
|
return 0;
|
|
|
|
struct mp_image_params params;
|
|
update_image_params(vd, ctx->pic, ¶ms);
|
|
vd->codec_pts = mp_pts_from_av(ctx->pic->pkt_pts, NULL);
|
|
vd->codec_dts = mp_pts_from_av(ctx->pic->pkt_dts, NULL);
|
|
|
|
struct mp_image *mpi = mp_image_from_av_frame(ctx->pic);
|
|
av_frame_unref(ctx->pic);
|
|
if (!mpi)
|
|
return 0; // mpi==NULL, or OOM
|
|
assert(mpi->planes[0] || mpi->planes[3]);
|
|
mp_image_set_params(mpi, ¶ms);
|
|
|
|
if (ctx->hwdec && ctx->hwdec->process_image)
|
|
mpi = ctx->hwdec->process_image(ctx, mpi);
|
|
|
|
*out_image = mp_img_swap_to_native(mpi);
|
|
return 1;
|
|
}
|
|
|
|
static int force_fallback(struct dec_video *vd)
|
|
{
|
|
vd_ffmpeg_ctx *ctx = vd->priv;
|
|
if (ctx->software_fallback_decoder) {
|
|
uninit_avctx(vd);
|
|
MP_ERR(vd, "Error using hardware "
|
|
"decoding, falling back to software decoding.\n");
|
|
const char *decoder = ctx->software_fallback_decoder;
|
|
ctx->software_fallback_decoder = NULL;
|
|
init_avctx(vd, decoder, NULL);
|
|
return ctx->avctx ? CONTROL_OK : CONTROL_ERROR;
|
|
}
|
|
return CONTROL_FALSE;
|
|
}
|
|
|
|
static struct mp_image *decode_with_fallback(struct dec_video *vd,
|
|
struct demux_packet *packet, int flags)
|
|
{
|
|
vd_ffmpeg_ctx *ctx = vd->priv;
|
|
if (!ctx->avctx)
|
|
return NULL;
|
|
|
|
struct mp_image *mpi = NULL;
|
|
int res = decode(vd, packet, flags, &mpi);
|
|
if (res < 0) {
|
|
// Failed hardware decoding? Try again in software.
|
|
if (force_fallback(vd) == CONTROL_OK)
|
|
decode(vd, packet, flags, &mpi);
|
|
}
|
|
|
|
return mpi;
|
|
}
|
|
|
|
static int control(struct dec_video *vd, int cmd, void *arg)
|
|
{
|
|
vd_ffmpeg_ctx *ctx = vd->priv;
|
|
AVCodecContext *avctx = ctx->avctx;
|
|
switch (cmd) {
|
|
case VDCTRL_RESET:
|
|
avcodec_flush_buffers(avctx);
|
|
return CONTROL_TRUE;
|
|
case VDCTRL_QUERY_UNSEEN_FRAMES:;
|
|
int delay = avctx->has_b_frames;
|
|
assert(delay >= 0);
|
|
if (avctx->active_thread_type & FF_THREAD_FRAME)
|
|
delay += avctx->thread_count - 1;
|
|
*(int *)arg = delay;
|
|
return CONTROL_TRUE;
|
|
case VDCTRL_GET_HWDEC: {
|
|
int hwdec = ctx->selected_hwdec;
|
|
if (!ctx->software_fallback_decoder)
|
|
hwdec = 0;
|
|
*(int *)arg = hwdec;
|
|
return CONTROL_TRUE;
|
|
}
|
|
case VDCTRL_FORCE_HWDEC_FALLBACK:
|
|
return force_fallback(vd);
|
|
}
|
|
return CONTROL_UNKNOWN;
|
|
}
|
|
|
|
static void add_decoders(struct mp_decoder_list *list)
|
|
{
|
|
mp_add_lavc_decoders(list, AVMEDIA_TYPE_VIDEO);
|
|
mp_add_decoder(list, "lavc", "mp-rawvideo", "mp-rawvideo",
|
|
"raw video");
|
|
}
|
|
|
|
const struct vd_functions mpcodecs_vd_ffmpeg = {
|
|
.name = "lavc",
|
|
.add_decoders = add_decoders,
|
|
.init = init,
|
|
.uninit = uninit,
|
|
.control = control,
|
|
.decode = decode_with_fallback,
|
|
};
|