mirror of
https://github.com/mpv-player/mpv
synced 2024-12-22 23:02:37 +00:00
74ae74db0c
These are basically MPlayer leftovers, and barely useful due to being redundant with other messages. The FPS message is used somewhere else.
453 lines
15 KiB
C
453 lines
15 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv 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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* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "options/options.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <assert.h>
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#include "common/msg.h"
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#include "osdep/timer.h"
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#include "stream/stream.h"
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#include "demux/packet.h"
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#include "common/codecs.h"
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#include "video/out/vo.h"
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#include "video/csputils.h"
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#include "demux/stheader.h"
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#include "video/decode/vd.h"
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#include "video/filter/vf.h"
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#include "video/decode/dec_video.h"
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extern const vd_functions_t mpcodecs_vd_ffmpeg;
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/* Please do not add any new decoders here. If you want to implement a new
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* decoder, add it to libavcodec, except for wrappers around external
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* libraries and decoders requiring binary support. */
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const vd_functions_t * const mpcodecs_vd_drivers[] = {
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&mpcodecs_vd_ffmpeg,
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/* Please do not add any new decoders here. If you want to implement a new
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* decoder, add it to libavcodec, except for wrappers around external
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* libraries and decoders requiring binary support. */
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NULL
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};
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void video_reset_decoding(struct dec_video *d_video)
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{
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video_vd_control(d_video, VDCTRL_RESET, NULL);
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if (d_video->vfilter && d_video->vfilter->initialized == 1)
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vf_seek_reset(d_video->vfilter);
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mp_image_unrefp(&d_video->waiting_decoded_mpi);
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d_video->num_buffered_pts = 0;
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d_video->last_pts = MP_NOPTS_VALUE;
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d_video->last_packet_pdts = MP_NOPTS_VALUE;
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d_video->decoded_pts = MP_NOPTS_VALUE;
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d_video->codec_pts = MP_NOPTS_VALUE;
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d_video->codec_dts = MP_NOPTS_VALUE;
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d_video->sorted_pts = MP_NOPTS_VALUE;
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d_video->unsorted_pts = MP_NOPTS_VALUE;
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}
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int video_vd_control(struct dec_video *d_video, int cmd, void *arg)
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{
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const struct vd_functions *vd = d_video->vd_driver;
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if (vd)
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return vd->control(d_video, cmd, arg);
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return CONTROL_UNKNOWN;
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}
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int video_set_colors(struct dec_video *d_video, const char *item, int value)
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{
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vf_equalizer_t data;
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data.item = item;
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data.value = value;
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MP_VERBOSE(d_video, "set video colors %s=%d \n", item, value);
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if (d_video->vfilter) {
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int ret = video_vf_vo_control(d_video, VFCTRL_SET_EQUALIZER, &data);
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if (ret == CONTROL_TRUE)
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return 1;
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}
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MP_VERBOSE(d_video, "Video attribute '%s' is not supported by selected vo.\n",
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item);
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return 0;
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}
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int video_get_colors(struct dec_video *d_video, const char *item, int *value)
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{
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vf_equalizer_t data;
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data.item = item;
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MP_VERBOSE(d_video, "get video colors %s \n", item);
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if (d_video->vfilter) {
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int ret = video_vf_vo_control(d_video, VFCTRL_GET_EQUALIZER, &data);
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if (ret == CONTROL_TRUE) {
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*value = data.value;
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return 1;
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}
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}
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return 0;
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}
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void video_uninit(struct dec_video *d_video)
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{
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mp_image_unrefp(&d_video->waiting_decoded_mpi);
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if (d_video->vd_driver) {
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MP_VERBOSE(d_video, "Uninit video.\n");
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d_video->vd_driver->uninit(d_video);
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}
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vf_destroy(d_video->vfilter);
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talloc_free(d_video);
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}
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static int init_video_codec(struct dec_video *d_video, const char *decoder)
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{
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if (!d_video->vd_driver->init(d_video, decoder)) {
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MP_VERBOSE(d_video, "Video decoder init failed.\n");
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return 0;
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}
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return 1;
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}
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struct mp_decoder_list *video_decoder_list(void)
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{
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struct mp_decoder_list *list = talloc_zero(NULL, struct mp_decoder_list);
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for (int i = 0; mpcodecs_vd_drivers[i] != NULL; i++)
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mpcodecs_vd_drivers[i]->add_decoders(list);
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return list;
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}
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static struct mp_decoder_list *mp_select_video_decoders(const char *codec,
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char *selection)
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{
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struct mp_decoder_list *list = video_decoder_list();
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struct mp_decoder_list *new = mp_select_decoders(list, codec, selection);
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talloc_free(list);
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return new;
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}
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static const struct vd_functions *find_driver(const char *name)
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{
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for (int i = 0; mpcodecs_vd_drivers[i] != NULL; i++) {
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if (strcmp(mpcodecs_vd_drivers[i]->name, name) == 0)
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return mpcodecs_vd_drivers[i];
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}
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return NULL;
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}
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bool video_init_best_codec(struct dec_video *d_video, char* video_decoders)
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{
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assert(!d_video->vd_driver);
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video_reset_decoding(d_video);
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d_video->has_broken_packet_pts = -10; // needs 10 packets to reach decision
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struct mp_decoder_entry *decoder = NULL;
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struct mp_decoder_list *list =
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mp_select_video_decoders(d_video->header->codec, video_decoders);
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mp_print_decoders(d_video->log, MSGL_V, "Codec list:", list);
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for (int n = 0; n < list->num_entries; n++) {
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struct mp_decoder_entry *sel = &list->entries[n];
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const struct vd_functions *driver = find_driver(sel->family);
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if (!driver)
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continue;
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MP_VERBOSE(d_video, "Opening video decoder %s:%s\n",
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sel->family, sel->decoder);
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d_video->vd_driver = driver;
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if (init_video_codec(d_video, sel->decoder)) {
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decoder = sel;
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break;
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}
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d_video->vd_driver = NULL;
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MP_WARN(d_video, "Video decoder init failed for "
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"%s:%s\n", sel->family, sel->decoder);
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}
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if (d_video->vd_driver) {
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d_video->decoder_desc =
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talloc_asprintf(d_video, "%s [%s:%s]", decoder->desc, decoder->family,
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decoder->decoder);
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MP_VERBOSE(d_video, "Selected video codec: %s\n", d_video->decoder_desc);
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} else {
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MP_ERR(d_video, "Failed to initialize a video decoder for codec '%s'.\n",
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d_video->header->codec ? d_video->header->codec : "<unknown>");
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}
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if (d_video->header->missing_timestamps) {
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MP_WARN(d_video, "This stream has no timestamps!\n");
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MP_WARN(d_video, "Making up playback time using %f FPS.\n", d_video->fps);
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MP_WARN(d_video, "Seeking will probably fail badly.\n");
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}
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talloc_free(list);
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return !!d_video->vd_driver;
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}
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static void add_pts_to_sort(struct dec_video *d_video, double pts)
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{
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if (pts != MP_NOPTS_VALUE) {
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int delay = -1;
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video_vd_control(d_video, VDCTRL_QUERY_UNSEEN_FRAMES, &delay);
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if (delay >= 0 && delay < d_video->num_buffered_pts)
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d_video->num_buffered_pts = delay;
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if (d_video->num_buffered_pts ==
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sizeof(d_video->buffered_pts) / sizeof(double))
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MP_ERR(d_video, "Too many buffered pts\n");
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else {
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int i, j;
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for (i = 0; i < d_video->num_buffered_pts; i++)
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if (d_video->buffered_pts[i] < pts)
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break;
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for (j = d_video->num_buffered_pts; j > i; j--)
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d_video->buffered_pts[j] = d_video->buffered_pts[j - 1];
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d_video->buffered_pts[i] = pts;
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d_video->num_buffered_pts++;
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}
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}
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}
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// Return true if pts1 comes before pts2. pts1 can be MP_NOPTS_VALUE, but pts2
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// always has to be valid. pts1 can't be equal or larger than pts2.
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#define PTS_IS_ORDERED(pts1, pts2) \
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((pts2) != MP_NOPTS_VALUE && ((pts1) == MP_NOPTS_VALUE || ((pts1) < (pts2))))
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static double retrieve_sorted_pts(struct dec_video *d_video, double codec_pts)
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{
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struct MPOpts *opts = d_video->opts;
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double sorted_pts;
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if (d_video->num_buffered_pts) {
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d_video->num_buffered_pts--;
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sorted_pts = d_video->buffered_pts[d_video->num_buffered_pts];
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} else {
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MP_ERR(d_video, "No pts value from demuxer to use for frame!\n");
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sorted_pts = MP_NOPTS_VALUE;
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}
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if (!PTS_IS_ORDERED(d_video->sorted_pts, sorted_pts))
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d_video->num_sorted_pts_problems++;
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d_video->sorted_pts = sorted_pts;
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if (!PTS_IS_ORDERED(d_video->unsorted_pts, codec_pts))
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d_video->num_unsorted_pts_problems++;
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d_video->unsorted_pts = codec_pts;
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if (d_video->header->video->avi_dts) {
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// Actually, they don't need to be sorted, we just reuse the buffering.
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d_video->pts_assoc_mode = 2;
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} else if (opts->user_pts_assoc_mode) {
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d_video->pts_assoc_mode = opts->user_pts_assoc_mode;
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} else if (d_video->pts_assoc_mode == 0) {
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if (codec_pts != MP_NOPTS_VALUE)
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d_video->pts_assoc_mode = 1;
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else
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d_video->pts_assoc_mode = 2;
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} else {
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int probcount1 = d_video->num_unsorted_pts_problems;
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int probcount2 = d_video->num_sorted_pts_problems;
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if (d_video->pts_assoc_mode == 2) {
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int tmp = probcount1;
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probcount1 = probcount2;
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probcount2 = tmp;
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}
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if (probcount1 >= probcount2 * 1.5 + 2) {
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d_video->pts_assoc_mode = 3 - d_video->pts_assoc_mode;
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MP_WARN(d_video, "Switching to pts association mode %d.\n",
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d_video->pts_assoc_mode);
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}
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}
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return d_video->pts_assoc_mode == 1 ? codec_pts : sorted_pts;
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}
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struct mp_image *video_decode(struct dec_video *d_video,
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struct demux_packet *packet,
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int drop_frame)
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{
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struct MPOpts *opts = d_video->opts;
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bool sort_pts =
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(opts->user_pts_assoc_mode != 1 || d_video->header->video->avi_dts)
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&& opts->correct_pts;
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struct demux_packet packet_copy;
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if (packet && packet->dts == MP_NOPTS_VALUE) {
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packet_copy = *packet;
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packet = &packet_copy;
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packet->dts = packet->pts;
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}
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double pkt_pts = packet ? packet->pts : MP_NOPTS_VALUE;
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double pkt_dts = packet ? packet->dts : MP_NOPTS_VALUE;
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double pkt_pdts = pkt_pts == MP_NOPTS_VALUE ? pkt_dts : pkt_pts;
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if (pkt_pdts != MP_NOPTS_VALUE)
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d_video->last_packet_pdts = pkt_pdts;
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if (sort_pts)
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add_pts_to_sort(d_video, pkt_pdts);
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double prev_codec_pts = d_video->codec_pts;
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double prev_codec_dts = d_video->codec_dts;
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MP_STATS(d_video, "start decode video");
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struct mp_image *mpi = d_video->vd_driver->decode(d_video, packet, drop_frame);
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MP_STATS(d_video, "end decode video");
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if (!mpi || drop_frame) {
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talloc_free(mpi);
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return NULL; // error / skipped frame
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}
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if (opts->field_dominance == 0)
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mpi->fields |= MP_IMGFIELD_TOP_FIRST;
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else if (opts->field_dominance == 1)
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mpi->fields &= ~MP_IMGFIELD_TOP_FIRST;
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// Note: the PTS is reordered, but the DTS is not. Both should be monotonic.
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double pts = d_video->codec_pts;
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double dts = d_video->codec_dts;
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if (pts == MP_NOPTS_VALUE) {
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d_video->codec_pts = prev_codec_pts;
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} else if (pts < prev_codec_pts) {
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d_video->num_codec_pts_problems++;
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}
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if (dts == MP_NOPTS_VALUE) {
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d_video->codec_dts = prev_codec_dts;
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} else if (dts <= prev_codec_dts) {
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d_video->num_codec_dts_problems++;
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}
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// If PTS is unset, or non-monotonic, fall back to DTS.
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if ((d_video->num_codec_pts_problems > d_video->num_codec_dts_problems ||
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pts == MP_NOPTS_VALUE) && dts != MP_NOPTS_VALUE)
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pts = dts;
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// Alternative PTS determination methods
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if (sort_pts)
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pts = retrieve_sorted_pts(d_video, pts);
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if (!opts->correct_pts || pts == MP_NOPTS_VALUE) {
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if (opts->correct_pts && !d_video->header->missing_timestamps)
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MP_WARN(d_video, "No video PTS! Making something up.\n");
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double frame_time = 1.0f / (d_video->fps > 0 ? d_video->fps : 25);
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double base = d_video->last_packet_pdts;
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pts = d_video->decoded_pts;
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if (pts == MP_NOPTS_VALUE)
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pts = base == MP_NOPTS_VALUE ? 0 : base;
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pts += frame_time;
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}
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if (d_video->has_broken_packet_pts < 0)
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d_video->has_broken_packet_pts++;
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if (d_video->num_codec_pts_problems || pkt_pts == MP_NOPTS_VALUE)
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d_video->has_broken_packet_pts = 1;
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mpi->pts = pts;
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d_video->decoded_pts = pts;
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return mpi;
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}
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int video_reconfig_filters(struct dec_video *d_video,
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const struct mp_image_params *params)
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{
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struct MPOpts *opts = d_video->opts;
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struct mp_image_params p = *params;
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struct sh_video *sh = d_video->header->video;
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float decoder_aspect = p.d_w / (float)p.d_h;
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if (d_video->initial_decoder_aspect == 0)
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d_video->initial_decoder_aspect = decoder_aspect;
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// We normally prefer the container aspect, unless the decoder aspect
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// changes at least once.
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if (d_video->initial_decoder_aspect == decoder_aspect) {
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if (sh->aspect > 0)
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vf_set_dar(&p.d_w, &p.d_h, p.w, p.h, sh->aspect);
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} else {
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MP_VERBOSE(d_video, "Using bitstream aspect ratio.\n");
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// Even if the aspect switches back, don't use container aspect again.
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d_video->initial_decoder_aspect = -1;
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}
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float force_aspect = opts->movie_aspect;
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if (force_aspect >= 0.0)
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vf_set_dar(&p.d_w, &p.d_h, p.w, p.h, force_aspect);
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// Detect colorspace from resolution.
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mp_image_params_guess_csp(&p);
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if (vf_reconfig(d_video->vfilter, params, &p) < 0) {
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MP_FATAL(d_video, "Cannot initialize video filters.\n");
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return -1;
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}
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return 0;
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}
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// Send a VCTRL, or if it doesn't work, translate it to a VOCTRL and try the VO.
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int video_vf_vo_control(struct dec_video *d_video, int vf_cmd, void *data)
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{
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if (d_video->vfilter && d_video->vfilter->initialized > 0) {
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int r = vf_control_any(d_video->vfilter, vf_cmd, data);
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if (r != CONTROL_UNKNOWN)
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return r;
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}
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switch (vf_cmd) {
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case VFCTRL_GET_DEINTERLACE:
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return vo_control(d_video->vo, VOCTRL_GET_DEINTERLACE, data) == VO_TRUE;
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case VFCTRL_SET_DEINTERLACE:
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return vo_control(d_video->vo, VOCTRL_SET_DEINTERLACE, data) == VO_TRUE;
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case VFCTRL_SET_EQUALIZER: {
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vf_equalizer_t *eq = data;
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if (!d_video->vo->config_ok)
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return CONTROL_FALSE; // vo not configured?
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struct voctrl_set_equalizer_args param = {
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eq->item, eq->value
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};
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return vo_control(d_video->vo, VOCTRL_SET_EQUALIZER, ¶m) == VO_TRUE;
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}
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case VFCTRL_GET_EQUALIZER: {
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vf_equalizer_t *eq = data;
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if (!d_video->vo->config_ok)
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return CONTROL_FALSE; // vo not configured?
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struct voctrl_get_equalizer_args param = {
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eq->item, &eq->value
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};
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return vo_control(d_video->vo, VOCTRL_GET_EQUALIZER, ¶m) == VO_TRUE;
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}
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}
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return CONTROL_UNKNOWN;
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}
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