mirror of https://github.com/mpv-player/mpv
1597 lines
50 KiB
C
1597 lines
50 KiB
C
/*
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* DEMUXER v2.5
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*
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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 <string.h>
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#include <assert.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "config.h"
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#include "options.h"
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#include "talloc.h"
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#include "mp_msg.h"
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#include "m_config.h"
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#include "libvo/fastmemcpy.h"
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#include "stream/stream.h"
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#include "demuxer.h"
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#include "stheader.h"
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#include "mf.h"
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#include "libaf/af_format.h"
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#include "libmpcodecs/dec_teletext.h"
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#include "libavcodec/avcodec.h"
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#if MP_INPUT_BUFFER_PADDING_SIZE < FF_INPUT_BUFFER_PADDING_SIZE
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#error MP_INPUT_BUFFER_PADDING_SIZE is too small!
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#endif
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static void clear_parser(sh_common_t *sh);
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// Demuxer list
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extern const struct demuxer_desc demuxer_desc_edl;
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extern const struct demuxer_desc demuxer_desc_cue;
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extern const demuxer_desc_t demuxer_desc_rawaudio;
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extern const demuxer_desc_t demuxer_desc_rawvideo;
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extern const demuxer_desc_t demuxer_desc_tv;
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extern const demuxer_desc_t demuxer_desc_mf;
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extern const demuxer_desc_t demuxer_desc_avi;
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extern const demuxer_desc_t demuxer_desc_y4m;
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extern const demuxer_desc_t demuxer_desc_asf;
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extern const demuxer_desc_t demuxer_desc_real;
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extern const demuxer_desc_t demuxer_desc_smjpeg;
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extern const demuxer_desc_t demuxer_desc_matroska;
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extern const demuxer_desc_t demuxer_desc_realaudio;
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extern const demuxer_desc_t demuxer_desc_vqf;
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extern const demuxer_desc_t demuxer_desc_mov;
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extern const demuxer_desc_t demuxer_desc_vivo;
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extern const demuxer_desc_t demuxer_desc_fli;
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extern const demuxer_desc_t demuxer_desc_film;
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extern const demuxer_desc_t demuxer_desc_roq;
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extern const demuxer_desc_t demuxer_desc_gif;
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extern const demuxer_desc_t demuxer_desc_ogg;
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extern const demuxer_desc_t demuxer_desc_avs;
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extern const demuxer_desc_t demuxer_desc_pva;
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extern const demuxer_desc_t demuxer_desc_nsv;
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extern const demuxer_desc_t demuxer_desc_mpeg_ts;
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extern const demuxer_desc_t demuxer_desc_lmlm4;
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extern const demuxer_desc_t demuxer_desc_mpeg_ps;
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extern const demuxer_desc_t demuxer_desc_mpeg_pes;
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extern const demuxer_desc_t demuxer_desc_mpeg_es;
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extern const demuxer_desc_t demuxer_desc_mpeg_gxf;
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extern const demuxer_desc_t demuxer_desc_mpeg4_es;
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extern const demuxer_desc_t demuxer_desc_h264_es;
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extern const demuxer_desc_t demuxer_desc_rawdv;
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extern const demuxer_desc_t demuxer_desc_mpc;
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extern const demuxer_desc_t demuxer_desc_audio;
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extern const demuxer_desc_t demuxer_desc_xmms;
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extern const demuxer_desc_t demuxer_desc_mpeg_ty;
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extern const demuxer_desc_t demuxer_desc_rtp;
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extern const demuxer_desc_t demuxer_desc_rtp_nemesi;
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extern const demuxer_desc_t demuxer_desc_lavf;
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extern const demuxer_desc_t demuxer_desc_lavf_preferred;
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extern const demuxer_desc_t demuxer_desc_aac;
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extern const demuxer_desc_t demuxer_desc_nut;
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extern const demuxer_desc_t demuxer_desc_mng;
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/* Please do not add any new demuxers here. If you want to implement a new
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* demuxer, add it to libavformat, except for wrappers around external
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* libraries and demuxers requiring binary support. */
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const demuxer_desc_t *const demuxer_list[] = {
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&demuxer_desc_edl,
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&demuxer_desc_cue,
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&demuxer_desc_rawaudio,
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&demuxer_desc_rawvideo,
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#ifdef CONFIG_TV
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&demuxer_desc_tv,
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#endif
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&demuxer_desc_mf,
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&demuxer_desc_lavf_preferred,
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&demuxer_desc_avi,
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&demuxer_desc_y4m,
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&demuxer_desc_asf,
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&demuxer_desc_nsv,
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&demuxer_desc_real,
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&demuxer_desc_smjpeg,
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&demuxer_desc_matroska,
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&demuxer_desc_realaudio,
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&demuxer_desc_vqf,
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&demuxer_desc_mov,
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&demuxer_desc_vivo,
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&demuxer_desc_fli,
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&demuxer_desc_film,
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&demuxer_desc_roq,
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#ifdef CONFIG_GIF
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&demuxer_desc_gif,
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#endif
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#ifdef CONFIG_OGGVORBIS
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&demuxer_desc_ogg,
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#endif
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#ifdef CONFIG_WIN32DLL
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&demuxer_desc_avs,
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#endif
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&demuxer_desc_pva,
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&demuxer_desc_mpeg_ts,
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&demuxer_desc_lmlm4,
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&demuxer_desc_mpeg_ps,
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&demuxer_desc_mpeg_pes,
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&demuxer_desc_mpeg_es,
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&demuxer_desc_mpeg_gxf,
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&demuxer_desc_mpeg4_es,
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&demuxer_desc_h264_es,
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&demuxer_desc_audio,
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&demuxer_desc_mpeg_ty,
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#ifdef CONFIG_LIVE555
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&demuxer_desc_rtp,
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#endif
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#ifdef CONFIG_LIBNEMESI
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&demuxer_desc_rtp_nemesi,
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#endif
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&demuxer_desc_lavf,
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#ifdef CONFIG_MUSEPACK
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&demuxer_desc_mpc,
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#endif
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#ifdef CONFIG_LIBDV095
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&demuxer_desc_rawdv,
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#endif
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&demuxer_desc_aac,
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#ifdef CONFIG_LIBNUT
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&demuxer_desc_nut,
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#endif
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#ifdef CONFIG_XMMS
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&demuxer_desc_xmms,
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#endif
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#ifdef CONFIG_MNG
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&demuxer_desc_mng,
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#endif
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/* Please do not add any new demuxers here. If you want to implement a new
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* demuxer, add it to libavformat, except for wrappers around external
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* libraries and demuxers requiring binary support. */
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NULL
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};
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static struct demux_packet *create_packet(size_t len)
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{
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if (len > 1000000000) {
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mp_msg(MSGT_DEMUXER, MSGL_FATAL, "Attempt to allocate demux packet "
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"over 1 GB!\n");
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abort();
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}
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struct demux_packet *dp = malloc(sizeof(struct demux_packet));
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dp->len = len;
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dp->next = NULL;
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dp->pts = MP_NOPTS_VALUE;
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dp->duration = -1;
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dp->stream_pts = MP_NOPTS_VALUE;
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dp->pos = 0;
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dp->flags = 0;
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dp->refcount = 1;
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dp->master = NULL;
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dp->buffer = NULL;
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dp->avpacket = NULL;
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return dp;
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}
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struct demux_packet *new_demux_packet(size_t len)
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{
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struct demux_packet *dp = create_packet(len);
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dp->buffer = malloc(len + MP_INPUT_BUFFER_PADDING_SIZE);
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if (!dp->buffer) {
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mp_msg(MSGT_DEMUXER, MSGL_FATAL, "Memory allocation failure!\n");
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abort();
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}
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memset(dp->buffer + len, 0, 8);
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return dp;
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}
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// data must already have suitable padding
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struct demux_packet *new_demux_packet_fromdata(void *data, size_t len)
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{
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struct demux_packet *dp = create_packet(len);
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dp->buffer = data;
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return dp;
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}
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void resize_demux_packet(struct demux_packet *dp, size_t len)
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{
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if (len > 1000000000) {
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mp_msg(MSGT_DEMUXER, MSGL_FATAL, "Attempt to realloc demux packet "
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"over 1 GB!\n");
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abort();
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}
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dp->buffer = realloc(dp->buffer, len + MP_INPUT_BUFFER_PADDING_SIZE);
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if (!dp->buffer) {
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mp_msg(MSGT_DEMUXER, MSGL_FATAL, "Memory allocation failure!\n");
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abort();
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}
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memset(dp->buffer + len, 0, 8);
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dp->len = len;
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}
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struct demux_packet *clone_demux_packet(struct demux_packet *pack)
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{
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struct demux_packet *dp = malloc(sizeof(struct demux_packet));
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while (pack->master)
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pack = pack->master; // find the master
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memcpy(dp, pack, sizeof(struct demux_packet));
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dp->next = NULL;
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dp->refcount = 0;
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dp->master = pack;
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pack->refcount++;
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return dp;
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}
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void free_demux_packet(struct demux_packet *dp)
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{
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if (dp->master == NULL) { //dp is a master packet
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dp->refcount--;
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if (dp->refcount == 0) {
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if (dp->avpacket)
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talloc_free(dp->avpacket);
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else
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free(dp->buffer);
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free(dp);
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}
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return;
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}
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// dp is a clone:
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free_demux_packet(dp->master);
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free(dp);
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}
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static void free_demuxer_stream(struct demux_stream *ds)
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{
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ds_free_packs(ds);
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free(ds);
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}
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static struct demux_stream *new_demuxer_stream(struct demuxer *demuxer, int id)
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{
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demux_stream_t *ds = malloc(sizeof(demux_stream_t));
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*ds = (demux_stream_t){
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.id = id,
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.demuxer = demuxer,
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.asf_seq = -1,
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};
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return ds;
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}
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/**
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* Get demuxer description structure for a given demuxer type
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*
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* @param file_format type of the demuxer
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* @return structure for the demuxer, NULL if not found
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*/
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static const demuxer_desc_t *get_demuxer_desc_from_type(int file_format)
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{
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int i;
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for (i = 0; demuxer_list[i]; i++)
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if (file_format == demuxer_list[i]->type)
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return demuxer_list[i];
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return NULL;
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}
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demuxer_t *new_demuxer(struct MPOpts *opts, stream_t *stream, int type,
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int a_id, int v_id, int s_id, char *filename)
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{
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struct demuxer *d = talloc_zero(NULL, struct demuxer);
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d->stream = stream;
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d->stream_pts = MP_NOPTS_VALUE;
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d->reference_clock = MP_NOPTS_VALUE;
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d->movi_start = stream->start_pos;
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d->movi_end = stream->end_pos;
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d->seekable = 1;
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d->synced = 0;
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d->filepos = -1;
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d->audio = new_demuxer_stream(d, a_id);
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d->video = new_demuxer_stream(d, v_id);
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d->sub = new_demuxer_stream(d, s_id);
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d->type = type;
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d->opts = opts;
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if (type)
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if (!(d->desc = get_demuxer_desc_from_type(type)))
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mp_msg(MSGT_DEMUXER, MSGL_ERR,
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"BUG! Invalid demuxer type in new_demuxer(), "
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"big troubles ahead.");
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if (filename) // Filename hack for avs_check_file
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d->filename = strdup(filename);
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stream_seek(stream, stream->start_pos);
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return d;
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}
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const char *sh_sub_type2str(int type)
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{
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switch (type) {
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case 't': return "text";
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case 'm': return "movtext";
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case 'a': return "ass";
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case 'v': return "vobsub";
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case 'x': return "xsub";
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case 'b': return "dvb";
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case 'd': return "dvb-teletext";
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case 'p': return "hdmv pgs";
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}
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return "unknown";
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}
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sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid)
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{
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if (id > MAX_S_STREAMS - 1 || id < 0) {
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mp_msg(MSGT_DEMUXER, MSGL_WARN,
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"Requested sub stream id overflow (%d > %d)\n", id,
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MAX_S_STREAMS);
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return NULL;
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}
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if (demuxer->s_streams[id])
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mp_msg(MSGT_DEMUXER, MSGL_WARN, "Sub stream %i redefined\n", id);
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else {
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struct sh_sub *sh = talloc_zero(demuxer, struct sh_sub);
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demuxer->s_streams[id] = sh;
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sh->sid = sid;
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sh->opts = demuxer->opts;
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sid);
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}
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return demuxer->s_streams[id];
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}
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struct sh_sub *new_sh_sub_sid_lang(struct demuxer *demuxer, int id, int sid,
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const char *lang)
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{
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struct sh_sub *sh = new_sh_sub_sid(demuxer, id, sid);
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if (lang && lang[0] && strcmp(lang, "und")) {
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sh->lang = talloc_strdup(sh, lang);
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n", sid, lang);
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}
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return sh;
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}
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static void free_sh_sub(sh_sub_t *sh)
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{
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mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_sub at %p\n", sh);
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free(sh->extradata);
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clear_parser((sh_common_t *)sh);
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talloc_free(sh);
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}
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sh_audio_t *new_sh_audio_aid(demuxer_t *demuxer, int id, int aid)
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{
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if (id > MAX_A_STREAMS - 1 || id < 0) {
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mp_msg(MSGT_DEMUXER, MSGL_WARN,
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"Requested audio stream id overflow (%d > %d)\n", id,
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MAX_A_STREAMS);
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return NULL;
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}
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if (demuxer->a_streams[id]) {
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mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "WARNING: Audio stream header %d redefined.\n", id);
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} else {
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mp_tmsg(MSGT_DEMUXER, MSGL_V, "==> Found audio stream: %d\n", id);
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struct sh_audio *sh = talloc_zero(demuxer, struct sh_audio);
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demuxer->a_streams[id] = sh;
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sh->aid = aid;
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sh->ds = demuxer->audio;
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// set some defaults
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sh->samplesize = 2;
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sh->sample_format = AF_FORMAT_S16_NE;
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sh->opts = demuxer->opts;
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", aid);
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}
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return demuxer->a_streams[id];
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}
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void free_sh_audio(demuxer_t *demuxer, int id)
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{
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sh_audio_t *sh = demuxer->a_streams[id];
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demuxer->a_streams[id] = NULL;
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mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_audio at %p\n", sh);
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free(sh->wf);
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free(sh->codecdata);
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clear_parser((sh_common_t *)sh);
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talloc_free(sh);
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}
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sh_video_t *new_sh_video_vid(demuxer_t *demuxer, int id, int vid)
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{
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if (id > MAX_V_STREAMS - 1 || id < 0) {
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mp_msg(MSGT_DEMUXER, MSGL_WARN,
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"Requested video stream id overflow (%d > %d)\n", id,
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MAX_V_STREAMS);
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return NULL;
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}
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if (demuxer->v_streams[id])
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mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "WARNING: Video stream header %d redefined.\n", id);
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else {
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mp_tmsg(MSGT_DEMUXER, MSGL_V, "==> Found video stream: %d\n", id);
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struct sh_video *sh = talloc_zero(demuxer, struct sh_video);
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demuxer->v_streams[id] = sh;
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sh->vid = vid;
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sh->ds = demuxer->video;
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sh->opts = demuxer->opts;
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_ID=%d\n", vid);
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}
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return demuxer->v_streams[id];
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}
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void free_sh_video(sh_video_t *sh)
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{
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mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_video at %p\n", sh);
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free(sh->bih);
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clear_parser((sh_common_t *)sh);
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talloc_free(sh);
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}
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void free_demuxer(demuxer_t *demuxer)
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{
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int i;
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mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing %s demuxer at %p\n",
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demuxer->desc->shortdesc, demuxer);
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if (demuxer->desc->close)
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demuxer->desc->close(demuxer);
|
|
// Very ugly hack to make it behave like old implementation
|
|
if (demuxer->desc->type == DEMUXER_TYPE_DEMUXERS)
|
|
goto skip_streamfree;
|
|
// free streams:
|
|
for (i = 0; i < MAX_A_STREAMS; i++)
|
|
if (demuxer->a_streams[i])
|
|
free_sh_audio(demuxer, i);
|
|
for (i = 0; i < MAX_V_STREAMS; i++)
|
|
if (demuxer->v_streams[i])
|
|
free_sh_video(demuxer->v_streams[i]);
|
|
for (i = 0; i < MAX_S_STREAMS; i++)
|
|
if (demuxer->s_streams[i])
|
|
free_sh_sub(demuxer->s_streams[i]);
|
|
// free demuxers:
|
|
free_demuxer_stream(demuxer->audio);
|
|
free_demuxer_stream(demuxer->video);
|
|
free_demuxer_stream(demuxer->sub);
|
|
skip_streamfree:
|
|
free(demuxer->filename);
|
|
if (demuxer->teletext)
|
|
teletext_control(demuxer->teletext, TV_VBI_CONTROL_STOP, NULL);
|
|
talloc_free(demuxer);
|
|
}
|
|
|
|
|
|
void ds_add_packet(demux_stream_t *ds, demux_packet_t *dp)
|
|
{
|
|
// append packet to DS stream:
|
|
++ds->packs;
|
|
ds->bytes += dp->len;
|
|
if (ds->last) {
|
|
// next packet in stream
|
|
ds->last->next = dp;
|
|
ds->last = dp;
|
|
} else {
|
|
// first packet in stream
|
|
ds->first = ds->last = dp;
|
|
}
|
|
mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
|
|
"DEMUX: Append packet to %s, len=%d pts=%5.3f pos=%u [packs: A=%d V=%d]\n",
|
|
(ds == ds->demuxer->audio) ? "d_audio" : "d_video", dp->len,
|
|
dp->pts, (unsigned int) dp->pos, ds->demuxer->audio->packs,
|
|
ds->demuxer->video->packs);
|
|
}
|
|
|
|
static void allocate_parser(AVCodecContext **avctx, AVCodecParserContext **parser, unsigned format)
|
|
{
|
|
enum CodecID codec_id = CODEC_ID_NONE;
|
|
|
|
switch (format) {
|
|
case MKTAG('M', 'P', '4', 'L'):
|
|
codec_id = CODEC_ID_AAC_LATM;
|
|
break;
|
|
case 0x2000:
|
|
case 0x332D6361:
|
|
case 0x332D4341:
|
|
case 0x20736D:
|
|
case MKTAG('s', 'a', 'c', '3'):
|
|
codec_id = CODEC_ID_AC3;
|
|
break;
|
|
case MKTAG('d', 'n', 'e', 't'):
|
|
// DNET/byte-swapped AC-3 - there is no parser for that yet
|
|
//codec_id = CODEC_ID_DNET;
|
|
break;
|
|
case MKTAG('E', 'A', 'C', '3'):
|
|
codec_id = CODEC_ID_EAC3;
|
|
break;
|
|
case 0x2001:
|
|
case 0x86:
|
|
codec_id = CODEC_ID_DTS;
|
|
break;
|
|
case MKTAG('f', 'L', 'a', 'C'):
|
|
codec_id = CODEC_ID_FLAC;
|
|
break;
|
|
case MKTAG('M', 'L', 'P', ' '):
|
|
codec_id = CODEC_ID_MLP;
|
|
break;
|
|
case 0x55:
|
|
case 0x5500736d:
|
|
case 0x55005354:
|
|
case MKTAG('.', 'm', 'p', '3'):
|
|
case MKTAG('M', 'P', '3', ' '):
|
|
case MKTAG('L', 'A', 'M', 'E'):
|
|
codec_id = CODEC_ID_MP3;
|
|
break;
|
|
case 0x50:
|
|
case 0x5000736d:
|
|
case MKTAG('.', 'm', 'p', '2'):
|
|
case MKTAG('.', 'm', 'p', '1'):
|
|
codec_id = CODEC_ID_MP2;
|
|
break;
|
|
case MKTAG('T', 'R', 'H', 'D'):
|
|
codec_id = CODEC_ID_TRUEHD;
|
|
break;
|
|
}
|
|
if (codec_id != CODEC_ID_NONE) {
|
|
*avctx = avcodec_alloc_context();
|
|
if (!*avctx)
|
|
return;
|
|
*parser = av_parser_init(codec_id);
|
|
if (!*parser)
|
|
av_freep(avctx);
|
|
}
|
|
}
|
|
|
|
static void get_parser(sh_common_t *sh, AVCodecContext **avctx, AVCodecParserContext **parser)
|
|
{
|
|
*avctx = NULL;
|
|
*parser = NULL;
|
|
|
|
if (!sh || !sh->needs_parsing)
|
|
return;
|
|
|
|
*avctx = sh->avctx;
|
|
*parser = sh->parser;
|
|
if (*parser)
|
|
return;
|
|
|
|
allocate_parser(avctx, parser, sh->format);
|
|
sh->avctx = *avctx;
|
|
sh->parser = *parser;
|
|
}
|
|
|
|
int ds_parse(demux_stream_t *ds, uint8_t **buffer, int *len, double pts, off_t pos)
|
|
{
|
|
AVCodecContext *avctx;
|
|
AVCodecParserContext *parser;
|
|
get_parser(ds->sh, &avctx, &parser);
|
|
if (!parser)
|
|
return *len;
|
|
return av_parser_parse2(parser, avctx, buffer, len, *buffer, *len, pts, pts, pos);
|
|
}
|
|
|
|
static void clear_parser(sh_common_t *sh)
|
|
{
|
|
av_parser_close(sh->parser);
|
|
sh->parser = NULL;
|
|
av_freep(&sh->avctx);
|
|
}
|
|
|
|
void ds_clear_parser(demux_stream_t *ds)
|
|
{
|
|
if (!ds->sh)
|
|
return;
|
|
clear_parser(ds->sh);
|
|
}
|
|
|
|
void ds_read_packet(demux_stream_t *ds, stream_t *stream, int len,
|
|
double pts, off_t pos, int flags)
|
|
{
|
|
demux_packet_t *dp = new_demux_packet(len);
|
|
len = stream_read(stream, dp->buffer, len);
|
|
resize_demux_packet(dp, len);
|
|
dp->pts = pts;
|
|
dp->pos = pos;
|
|
dp->flags = flags;
|
|
// append packet to DS stream:
|
|
ds_add_packet(ds, dp);
|
|
}
|
|
|
|
// return value:
|
|
// 0 = EOF or no stream found or invalid type
|
|
// 1 = successfully read a packet
|
|
|
|
int demux_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
|
|
{
|
|
// Note: parameter 'ds' can be NULL!
|
|
return demux->desc->fill_buffer(demux, ds);
|
|
}
|
|
|
|
// return value:
|
|
// 0 = EOF
|
|
// 1 = successful
|
|
int ds_fill_buffer(demux_stream_t *ds)
|
|
{
|
|
demuxer_t *demux = ds->demuxer;
|
|
if (ds->current)
|
|
free_demux_packet(ds->current);
|
|
ds->current = NULL;
|
|
mp_dbg(MSGT_DEMUXER, MSGL_DBG3, "ds_fill_buffer (%s) called\n",
|
|
ds == demux->audio ? "d_audio" : ds == demux->video ? "d_video" :
|
|
ds == demux->sub ? "d_sub" : "unknown");
|
|
while (1) {
|
|
if (ds->packs) {
|
|
demux_packet_t *p = ds->first;
|
|
// copy useful data:
|
|
ds->buffer = p->buffer;
|
|
ds->buffer_pos = 0;
|
|
ds->buffer_size = p->len;
|
|
ds->pos = p->pos;
|
|
ds->dpos += p->len; // !!!
|
|
++ds->pack_no;
|
|
if (p->pts != MP_NOPTS_VALUE) {
|
|
ds->pts = p->pts;
|
|
ds->pts_bytes = 0;
|
|
}
|
|
ds->pts_bytes += p->len; // !!!
|
|
if (p->stream_pts != MP_NOPTS_VALUE)
|
|
demux->stream_pts = p->stream_pts;
|
|
ds->flags = p->flags;
|
|
// unlink packet:
|
|
ds->bytes -= p->len;
|
|
ds->current = p;
|
|
ds->first = p->next;
|
|
if (!ds->first)
|
|
ds->last = NULL;
|
|
--ds->packs;
|
|
/* The code below can set ds->eof to 1 when another stream runs
|
|
* out of buffer space. That makes sense because in that situation
|
|
* the calling code should not count on being able to demux more
|
|
* packets from this stream.
|
|
* If however the situation improves and we're called again
|
|
* despite the eof flag then it's better to clear it to avoid
|
|
* weird behavior. */
|
|
ds->eof = 0;
|
|
return 1;
|
|
}
|
|
|
|
#define MaybeNI _("Maybe you are playing a non-interleaved stream/file or the codec failed?\n" \
|
|
"For AVI files, try to force non-interleaved mode with the -ni option.\n")
|
|
|
|
if (demux->audio->packs >= MAX_PACKS
|
|
|| demux->audio->bytes >= MAX_PACK_BYTES) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many audio packets in the buffer: (%d in %d bytes).\n",
|
|
demux->audio->packs, demux->audio->bytes);
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
|
|
break;
|
|
}
|
|
if (demux->video->packs >= MAX_PACKS
|
|
|| demux->video->bytes >= MAX_PACK_BYTES) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many video packets in the buffer: (%d in %d bytes).\n",
|
|
demux->video->packs, demux->video->bytes);
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
|
|
break;
|
|
}
|
|
if (!demux_fill_buffer(demux, ds)) {
|
|
mp_dbg(MSGT_DEMUXER, MSGL_DBG2,
|
|
"ds_fill_buffer()->demux_fill_buffer() failed\n");
|
|
break; // EOF
|
|
}
|
|
}
|
|
ds->buffer_pos = ds->buffer_size = 0;
|
|
ds->buffer = NULL;
|
|
mp_msg(MSGT_DEMUXER, MSGL_V,
|
|
"ds_fill_buffer: EOF reached (stream: %s) \n",
|
|
ds == demux->audio ? "audio" : "video");
|
|
ds->eof = 1;
|
|
return 0;
|
|
}
|
|
|
|
int demux_read_data(demux_stream_t *ds, unsigned char *mem, int len)
|
|
{
|
|
int x;
|
|
int bytes = 0;
|
|
while (len > 0) {
|
|
x = ds->buffer_size - ds->buffer_pos;
|
|
if (x == 0) {
|
|
if (!ds_fill_buffer(ds))
|
|
return bytes;
|
|
} else {
|
|
if (x > len)
|
|
x = len;
|
|
if (mem)
|
|
fast_memcpy(mem + bytes, &ds->buffer[ds->buffer_pos], x);
|
|
bytes += x;
|
|
len -= x;
|
|
ds->buffer_pos += x;
|
|
}
|
|
}
|
|
return bytes;
|
|
}
|
|
|
|
/**
|
|
* \brief read data until the given 3-byte pattern is encountered, up to maxlen
|
|
* \param mem memory to read data into, may be NULL to discard data
|
|
* \param maxlen maximum number of bytes to read
|
|
* \param read number of bytes actually read
|
|
* \param pattern pattern to search for (lowest 8 bits are ignored)
|
|
* \return whether pattern was found
|
|
*/
|
|
int demux_pattern_3(demux_stream_t *ds, unsigned char *mem, int maxlen,
|
|
int *read, uint32_t pattern)
|
|
{
|
|
register uint32_t head = 0xffffff00;
|
|
register uint32_t pat = pattern & 0xffffff00;
|
|
int total_len = 0;
|
|
do {
|
|
register unsigned char *ds_buf = &ds->buffer[ds->buffer_size];
|
|
int len = ds->buffer_size - ds->buffer_pos;
|
|
register long pos = -len;
|
|
if (unlikely(pos >= 0)) { // buffer is empty
|
|
ds_fill_buffer(ds);
|
|
continue;
|
|
}
|
|
do {
|
|
head |= ds_buf[pos];
|
|
head <<= 8;
|
|
} while (++pos && head != pat);
|
|
len += pos;
|
|
if (total_len + len > maxlen)
|
|
len = maxlen - total_len;
|
|
len = demux_read_data(ds, mem ? &mem[total_len] : NULL, len);
|
|
total_len += len;
|
|
} while ((head != pat || total_len < 3) && total_len < maxlen && !ds->eof);
|
|
if (read)
|
|
*read = total_len;
|
|
return total_len >= 3 && head == pat;
|
|
}
|
|
|
|
void ds_free_packs(demux_stream_t *ds)
|
|
{
|
|
demux_packet_t *dp = ds->first;
|
|
while (dp) {
|
|
demux_packet_t *dn = dp->next;
|
|
free_demux_packet(dp);
|
|
dp = dn;
|
|
}
|
|
if (ds->asf_packet) {
|
|
// free unfinished .asf fragments:
|
|
free(ds->asf_packet->buffer);
|
|
free(ds->asf_packet);
|
|
ds->asf_packet = NULL;
|
|
}
|
|
ds->first = ds->last = NULL;
|
|
ds->packs = 0; // !!!!!
|
|
ds->bytes = 0;
|
|
if (ds->current)
|
|
free_demux_packet(ds->current);
|
|
ds->current = NULL;
|
|
ds->buffer = NULL;
|
|
ds->buffer_pos = ds->buffer_size;
|
|
ds->pts = MP_NOPTS_VALUE;
|
|
ds->pts_bytes = 0;
|
|
}
|
|
|
|
int ds_get_packet(demux_stream_t *ds, unsigned char **start)
|
|
{
|
|
int len;
|
|
if (ds->buffer_pos >= ds->buffer_size) {
|
|
if (!ds_fill_buffer(ds)) {
|
|
// EOF
|
|
*start = NULL;
|
|
return -1;
|
|
}
|
|
}
|
|
len = ds->buffer_size - ds->buffer_pos;
|
|
*start = &ds->buffer[ds->buffer_pos];
|
|
ds->buffer_pos += len;
|
|
return len;
|
|
}
|
|
|
|
int ds_get_packet_pts(demux_stream_t *ds, unsigned char **start, double *pts)
|
|
{
|
|
int len;
|
|
*pts = MP_NOPTS_VALUE;
|
|
len = ds_get_packet(ds, start);
|
|
if (len < 0)
|
|
return len;
|
|
// Return pts unless this read starts from the middle of a packet
|
|
if (len == ds->buffer_pos)
|
|
*pts = ds->current->pts;
|
|
return len;
|
|
}
|
|
|
|
int ds_get_packet_sub(demux_stream_t *ds, unsigned char **start)
|
|
{
|
|
int len;
|
|
if (ds->buffer_pos >= ds->buffer_size) {
|
|
*start = NULL;
|
|
if (!ds->packs)
|
|
return -1; // no sub
|
|
if (!ds_fill_buffer(ds))
|
|
return -1; // EOF
|
|
}
|
|
len = ds->buffer_size - ds->buffer_pos;
|
|
*start = &ds->buffer[ds->buffer_pos];
|
|
ds->buffer_pos += len;
|
|
return len;
|
|
}
|
|
|
|
struct demux_packet *ds_get_packet2(struct demux_stream *ds, bool repeat_last)
|
|
{
|
|
// This shouldn't get used together with partial reads
|
|
assert(ds->buffer_pos == 0 || ds->buffer_pos >= ds->buffer_size);
|
|
if (!repeat_last)
|
|
ds_fill_buffer(ds);
|
|
ds->buffer_pos = ds->buffer_size;
|
|
return ds->current;
|
|
}
|
|
|
|
double ds_get_next_pts(demux_stream_t *ds)
|
|
{
|
|
demuxer_t *demux = ds->demuxer;
|
|
// if we have not read from the "current" packet, consider it
|
|
// as the next, otherwise we never get the pts for the first packet.
|
|
while (!ds->first && (!ds->current || ds->buffer_pos)) {
|
|
if (demux->audio->packs >= MAX_PACKS
|
|
|| demux->audio->bytes >= MAX_PACK_BYTES) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many audio packets in the buffer: (%d in %d bytes).\n",
|
|
demux->audio->packs, demux->audio->bytes);
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
|
|
return MP_NOPTS_VALUE;
|
|
}
|
|
if (demux->video->packs >= MAX_PACKS
|
|
|| demux->video->bytes >= MAX_PACK_BYTES) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "\nToo many video packets in the buffer: (%d in %d bytes).\n",
|
|
demux->video->packs, demux->video->bytes);
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_HINT, MaybeNI);
|
|
return MP_NOPTS_VALUE;
|
|
}
|
|
if (!demux_fill_buffer(demux, ds))
|
|
return MP_NOPTS_VALUE;
|
|
}
|
|
// take pts from "current" if we never read from it.
|
|
if (ds->current && !ds->buffer_pos)
|
|
return ds->current->pts;
|
|
return ds->first->pts;
|
|
}
|
|
|
|
// ====================================================================
|
|
|
|
void demuxer_help(void)
|
|
{
|
|
int i;
|
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_INFO, "Available demuxers:\n");
|
|
mp_msg(MSGT_DEMUXER, MSGL_INFO, " demuxer: info: (comment)\n");
|
|
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DEMUXERS\n");
|
|
for (i = 0; demuxer_list[i]; i++) {
|
|
if (demuxer_list[i]->type >= DEMUXER_TYPE_END) // internal type
|
|
continue;
|
|
if (demuxer_list[i]->comment && strlen(demuxer_list[i]->comment))
|
|
mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %s (%s)\n",
|
|
demuxer_list[i]->name, demuxer_list[i]->info,
|
|
demuxer_list[i]->comment);
|
|
else
|
|
mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %s\n",
|
|
demuxer_list[i]->name, demuxer_list[i]->info);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Get demuxer type for a given demuxer name
|
|
*
|
|
* @param demuxer_name string with demuxer name of demuxer number
|
|
* @param force will be set if demuxer should be forced.
|
|
* May be NULL.
|
|
* @return DEMUXER_TYPE_xxx, -1 if error or not found
|
|
*/
|
|
static int get_demuxer_type_from_name(char *demuxer_name, int *force)
|
|
{
|
|
if (!demuxer_name || !demuxer_name[0])
|
|
return DEMUXER_TYPE_UNKNOWN;
|
|
if (force)
|
|
*force = demuxer_name[0] == '+';
|
|
if (demuxer_name[0] == '+')
|
|
demuxer_name = &demuxer_name[1];
|
|
for (int i = 0; demuxer_list[i]; i++) {
|
|
if (demuxer_list[i]->type >= DEMUXER_TYPE_END)
|
|
// Can't select special demuxers from commandline
|
|
continue;
|
|
if (strcmp(demuxer_name, demuxer_list[i]->name) == 0)
|
|
return demuxer_list[i]->type;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static struct demuxer *open_given_type(struct MPOpts *opts,
|
|
const struct demuxer_desc *desc,
|
|
struct stream *stream, bool force,
|
|
int audio_id, int video_id, int sub_id,
|
|
char *filename,
|
|
struct demuxer_params *params)
|
|
{
|
|
struct demuxer *demuxer;
|
|
int fformat;
|
|
demuxer = new_demuxer(opts, stream, desc->type, audio_id,
|
|
video_id, sub_id, filename);
|
|
demuxer->params = params;
|
|
if (desc->check_file)
|
|
fformat = desc->check_file(demuxer);
|
|
else
|
|
fformat = desc->type;
|
|
if (force)
|
|
fformat = desc->type;
|
|
if (fformat == 0)
|
|
goto fail;
|
|
if (fformat == desc->type) {
|
|
if (demuxer->filetype)
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_INFO, "Detected file format: %s (%s)\n",
|
|
demuxer->filetype, desc->shortdesc);
|
|
else
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_INFO, "Detected file format: %s\n",
|
|
desc->shortdesc);
|
|
if (demuxer->desc->open) {
|
|
struct demuxer *demux2 = demuxer->desc->open(demuxer);
|
|
if (!demux2) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Opening as detected format "
|
|
"\"%s\" failed.\n", desc->shortdesc);
|
|
goto fail;
|
|
}
|
|
/* At least demux_mov can return a demux_demuxers instance
|
|
* from open() instead of the original fed in. */
|
|
demuxer = demux2;
|
|
}
|
|
demuxer->file_format = fformat;
|
|
return demuxer;
|
|
} else {
|
|
// demux_mov can return playlist instead of mov
|
|
if (fformat == DEMUXER_TYPE_PLAYLIST)
|
|
return demuxer; // handled in mplayer.c
|
|
/* Internal MPEG PS demuxer check can return other MPEG subtypes
|
|
* which don't have their own checks; recurse to try opening as
|
|
* the returned type instead. */
|
|
free_demuxer(demuxer);
|
|
desc = get_demuxer_desc_from_type(fformat);
|
|
if (!desc) {
|
|
mp_msg(MSGT_DEMUXER, MSGL_ERR,
|
|
"BUG: recursion to nonexistent file format\n");
|
|
return NULL;
|
|
}
|
|
return open_given_type(opts, desc, stream, false, audio_id,
|
|
video_id, sub_id, filename, params);
|
|
}
|
|
fail:
|
|
free_demuxer(demuxer);
|
|
return NULL;
|
|
}
|
|
|
|
static struct demuxer *demux_open_stream(struct MPOpts *opts,
|
|
struct stream *stream,
|
|
int file_format, bool force,
|
|
int audio_id, int video_id, int sub_id,
|
|
char *filename,
|
|
struct demuxer_params *params)
|
|
{
|
|
struct demuxer *demuxer = NULL;
|
|
const struct demuxer_desc *desc;
|
|
|
|
// If somebody requested a demuxer check it
|
|
if (file_format) {
|
|
desc = get_demuxer_desc_from_type(file_format);
|
|
if (!desc)
|
|
// should only happen with obsolete -demuxer 99 numeric format
|
|
return NULL;
|
|
demuxer = open_given_type(opts, desc, stream, force, audio_id,
|
|
video_id, sub_id, filename, params);
|
|
if (demuxer)
|
|
goto dmx_open;
|
|
return NULL;
|
|
}
|
|
|
|
// Test demuxers with safe file checks
|
|
for (int i = 0; (desc = demuxer_list[i]); i++) {
|
|
if (desc->safe_check) {
|
|
demuxer = open_given_type(opts, desc, stream, false, audio_id,
|
|
video_id, sub_id, filename, params);
|
|
if (demuxer)
|
|
goto dmx_open;
|
|
}
|
|
}
|
|
|
|
// Ok. We're over the stable detectable fileformats, the next ones are
|
|
// a bit fuzzy. So by default (extension_parsing==1) try extension-based
|
|
// detection first:
|
|
if (filename && opts->extension_parsing == 1) {
|
|
desc = get_demuxer_desc_from_type(demuxer_type_by_filename(filename));
|
|
if (desc)
|
|
demuxer = open_given_type(opts, desc, stream, false, audio_id,
|
|
video_id, sub_id, filename, params);
|
|
if (demuxer)
|
|
goto dmx_open;
|
|
}
|
|
|
|
// Finally try detection for demuxers with unsafe checks
|
|
for (int i = 0; (desc = demuxer_list[i]); i++) {
|
|
if (!desc->safe_check && desc->check_file) {
|
|
demuxer = open_given_type(opts, desc, stream, false, audio_id,
|
|
video_id, sub_id, filename, params);
|
|
if (demuxer)
|
|
goto dmx_open;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
|
|
dmx_open:
|
|
|
|
if (demuxer->type == DEMUXER_TYPE_PLAYLIST)
|
|
return demuxer;
|
|
|
|
struct sh_video *sh_video = demuxer->video->sh;
|
|
if (sh_video && sh_video->bih) {
|
|
int biComp = le2me_32(sh_video->bih->biCompression);
|
|
mp_msg(MSGT_DEMUX, MSGL_INFO,
|
|
"VIDEO: [%.4s] %dx%d %dbpp %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
|
|
(char *) &biComp, sh_video->bih->biWidth,
|
|
sh_video->bih->biHeight, sh_video->bih->biBitCount,
|
|
sh_video->fps, sh_video->i_bps * 0.008f,
|
|
sh_video->i_bps / 1024.0f);
|
|
}
|
|
return demuxer;
|
|
}
|
|
|
|
struct demuxer *demux_open(struct MPOpts *opts, stream_t *vs, int file_format,
|
|
int audio_id, int video_id, int sub_id,
|
|
char *filename)
|
|
{
|
|
return demux_open_withparams(opts, vs, file_format, audio_id, video_id,
|
|
sub_id, filename, NULL);
|
|
}
|
|
|
|
struct demuxer *demux_open_withparams(struct MPOpts *opts, stream_t *vs,
|
|
int file_format, int audio_id, int video_id, int dvdsub_id,
|
|
char *filename, struct demuxer_params *params)
|
|
{
|
|
stream_t *as = NULL, *ss = NULL;
|
|
demuxer_t *vd, *ad = NULL, *sd = NULL;
|
|
demuxer_t *res;
|
|
int afmt = DEMUXER_TYPE_UNKNOWN, sfmt = DEMUXER_TYPE_UNKNOWN;
|
|
int demuxer_type;
|
|
int audio_demuxer_type = 0, sub_demuxer_type = 0;
|
|
int demuxer_force = 0, audio_demuxer_force = 0, sub_demuxer_force = 0;
|
|
|
|
if ((demuxer_type =
|
|
get_demuxer_type_from_name(opts->demuxer_name, &demuxer_force)) < 0) {
|
|
mp_msg(MSGT_DEMUXER, MSGL_ERR, "-demuxer %s does not exist.\n",
|
|
opts->demuxer_name);
|
|
return NULL;
|
|
}
|
|
if ((audio_demuxer_type =
|
|
get_demuxer_type_from_name(opts->audio_demuxer_name,
|
|
&audio_demuxer_force)) < 0) {
|
|
mp_msg(MSGT_DEMUXER, MSGL_ERR, "-audio-demuxer %s does not exist.\n",
|
|
opts->audio_demuxer_name);
|
|
if (opts->audio_stream)
|
|
return NULL;
|
|
}
|
|
if ((sub_demuxer_type =
|
|
get_demuxer_type_from_name(opts->sub_demuxer_name,
|
|
&sub_demuxer_force)) < 0) {
|
|
mp_msg(MSGT_DEMUXER, MSGL_ERR, "-sub-demuxer %s does not exist.\n",
|
|
opts->sub_demuxer_name);
|
|
if (opts->sub_stream)
|
|
return NULL;
|
|
}
|
|
|
|
if (opts->audio_stream) {
|
|
as = open_stream(opts->audio_stream, 0, &afmt);
|
|
if (!as) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Cannot open audio stream: %s\n",
|
|
opts->audio_stream);
|
|
return NULL;
|
|
}
|
|
if (opts->audio_stream_cache) {
|
|
if (!stream_enable_cache
|
|
(as, opts->audio_stream_cache * 1024,
|
|
opts->audio_stream_cache * 1024 *
|
|
(opts->stream_cache_min_percent / 100.0),
|
|
opts->audio_stream_cache * 1024 *
|
|
(opts->stream_cache_seek_min_percent / 100.0))) {
|
|
free_stream(as);
|
|
mp_msg(MSGT_DEMUXER, MSGL_ERR,
|
|
"Can't enable audio stream cache\n");
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
if (opts->sub_stream) {
|
|
ss = open_stream(opts->sub_stream, 0, &sfmt);
|
|
if (!ss) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_ERR, "Cannot open subtitle stream: %s\n",
|
|
opts->sub_stream);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
vd = demux_open_stream(opts, vs, demuxer_type ? demuxer_type : file_format,
|
|
demuxer_force, opts->audio_stream ? -2 : audio_id,
|
|
video_id, opts->sub_stream ? -2 : dvdsub_id,
|
|
filename, params);
|
|
if (!vd) {
|
|
if (as)
|
|
free_stream(as);
|
|
if (ss)
|
|
free_stream(ss);
|
|
return NULL;
|
|
}
|
|
if (as) {
|
|
ad = demux_open_stream(opts, as,
|
|
audio_demuxer_type ? audio_demuxer_type : afmt,
|
|
audio_demuxer_force, audio_id, -2, -2,
|
|
opts->audio_stream, params);
|
|
if (!ad) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "Failed to open audio demuxer: %s\n",
|
|
opts->audio_stream);
|
|
free_stream(as);
|
|
} else if (ad->audio->sh
|
|
&& ((sh_audio_t *) ad->audio->sh)->format == 0x55) // MP3
|
|
opts->hr_mp3_seek = 1; // Enable high res seeking
|
|
}
|
|
if (ss) {
|
|
sd = demux_open_stream(opts, ss,
|
|
sub_demuxer_type ? sub_demuxer_type : sfmt,
|
|
sub_demuxer_force, -2, -2, dvdsub_id,
|
|
opts->sub_stream, params);
|
|
if (!sd) {
|
|
mp_tmsg(MSGT_DEMUXER, MSGL_WARN,
|
|
"Failed to open subtitle demuxer: %s\n", opts->sub_stream);
|
|
free_stream(ss);
|
|
}
|
|
}
|
|
|
|
if (ad && sd)
|
|
res = new_demuxers_demuxer(vd, ad, sd);
|
|
else if (ad)
|
|
res = new_demuxers_demuxer(vd, ad, vd);
|
|
else if (sd)
|
|
res = new_demuxers_demuxer(vd, vd, sd);
|
|
else
|
|
res = vd;
|
|
|
|
opts->correct_pts = opts->user_correct_pts;
|
|
if (opts->correct_pts < 0)
|
|
opts->correct_pts =
|
|
demux_control(vd ? vd : res, DEMUXER_CTRL_CORRECT_PTS,
|
|
NULL) == DEMUXER_CTRL_OK;
|
|
return res;
|
|
}
|
|
|
|
|
|
void demux_flush(demuxer_t *demuxer)
|
|
{
|
|
ds_free_packs(demuxer->video);
|
|
ds_free_packs(demuxer->audio);
|
|
ds_free_packs(demuxer->sub);
|
|
}
|
|
|
|
int demux_seek(demuxer_t *demuxer, float rel_seek_secs, float audio_delay,
|
|
int flags)
|
|
{
|
|
if (!demuxer->seekable) {
|
|
if (demuxer->file_format == DEMUXER_TYPE_AVI)
|
|
mp_tmsg(MSGT_SEEK, MSGL_WARN, "Cannot seek in raw AVI streams. (Index required, try with the -idx switch.)\n");
|
|
#ifdef CONFIG_TV
|
|
else if (demuxer->file_format == DEMUXER_TYPE_TV)
|
|
mp_tmsg(MSGT_SEEK, MSGL_WARN, "TV input is not seekable! (Seeking will probably be for changing channels ;)\n");
|
|
#endif
|
|
else
|
|
mp_tmsg(MSGT_SEEK, MSGL_WARN, "Cannot seek in this file.\n");
|
|
return 0;
|
|
}
|
|
// clear demux buffers:
|
|
demux_flush(demuxer);
|
|
demuxer->video->eof = 0;
|
|
demuxer->audio->eof = 0;
|
|
demuxer->sub->eof = 0;
|
|
|
|
/* HACK: assume any demuxer used with these streams can cope with
|
|
* the stream layer suddenly seeking to a different position under it
|
|
* (nothing actually implements DEMUXER_CTRL_RESYNC now).
|
|
*/
|
|
struct stream *stream = demuxer->stream;
|
|
if (stream->type == STREAMTYPE_DVD || stream->type == STREAMTYPE_DVDNAV) {
|
|
double pts;
|
|
|
|
if (flags & SEEK_ABSOLUTE)
|
|
pts = 0.0f;
|
|
else {
|
|
if (demuxer->stream_pts == MP_NOPTS_VALUE)
|
|
goto dmx_seek;
|
|
pts = demuxer->stream_pts;
|
|
}
|
|
|
|
if (flags & SEEK_FACTOR) {
|
|
double tmp = 0;
|
|
if (stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH,
|
|
&tmp) == STREAM_UNSUPPORTED)
|
|
goto dmx_seek;
|
|
pts += tmp * rel_seek_secs;
|
|
} else
|
|
pts += rel_seek_secs;
|
|
|
|
if (stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_TIME, &pts)
|
|
!= STREAM_UNSUPPORTED) {
|
|
demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
dmx_seek:
|
|
if (demuxer->desc->seek)
|
|
demuxer->desc->seek(demuxer, rel_seek_secs, audio_delay, flags);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int demux_info_add(demuxer_t *demuxer, const char *opt, const char *param)
|
|
{
|
|
return demux_info_add_bstr(demuxer, bstr(opt), bstr(param));
|
|
}
|
|
|
|
int demux_info_add_bstr(demuxer_t *demuxer, struct bstr opt, struct bstr param)
|
|
{
|
|
char **info = demuxer->info;
|
|
int n = 0;
|
|
|
|
|
|
for (n = 0; info && info[2 * n] != NULL; n++) {
|
|
if (!bstrcasecmp(opt, bstr(info[2*n]))) {
|
|
if (!bstrcmp(param, bstr(info[2*n + 1]))) {
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "Demuxer info %.*s set to unchanged value %.*s\n",
|
|
BSTR_P(opt), BSTR_P(param));
|
|
return 0;
|
|
}
|
|
mp_tmsg(MSGT_DEMUX, MSGL_INFO, "Demuxer info %.*s changed to %.*s\n",
|
|
BSTR_P(opt), BSTR_P(param));
|
|
talloc_free(info[2*n + 1]);
|
|
info[2*n + 1] = talloc_strndup(demuxer->info, param.start, param.len);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
info = demuxer->info = talloc_realloc(demuxer, info, char *, 2 * (n + 2));
|
|
info[2*n] = talloc_strndup(demuxer->info, opt.start, opt.len);
|
|
info[2*n + 1] = talloc_strndup(demuxer->info, param.start, param.len);
|
|
memset(&info[2 * (n + 1)], 0, 2 * sizeof(char *));
|
|
|
|
return 1;
|
|
}
|
|
|
|
int demux_info_print(demuxer_t *demuxer)
|
|
{
|
|
char **info = demuxer->info;
|
|
int n;
|
|
|
|
if (!info)
|
|
return 0;
|
|
|
|
mp_tmsg(MSGT_DEMUX, MSGL_INFO, "Clip info:\n");
|
|
for (n = 0; info[2 * n] != NULL; n++) {
|
|
mp_msg(MSGT_DEMUX, MSGL_INFO, " %s: %s\n", info[2 * n],
|
|
info[2 * n + 1]);
|
|
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_NAME%d=%s\n", n,
|
|
info[2 * n]);
|
|
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_VALUE%d=%s\n", n,
|
|
info[2 * n + 1]);
|
|
}
|
|
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_N=%d\n", n);
|
|
|
|
return 0;
|
|
}
|
|
|
|
char *demux_info_get(demuxer_t *demuxer, const char *opt)
|
|
{
|
|
int i;
|
|
char **info = demuxer->info;
|
|
|
|
for (i = 0; info && info[2 * i] != NULL; i++) {
|
|
if (!strcasecmp(opt, info[2 * i]))
|
|
return info[2 * i + 1];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int demux_control(demuxer_t *demuxer, int cmd, void *arg)
|
|
{
|
|
|
|
if (demuxer->desc->control)
|
|
return demuxer->desc->control(demuxer, cmd, arg);
|
|
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
}
|
|
|
|
int demuxer_switch_audio(demuxer_t *demuxer, int index)
|
|
{
|
|
int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_AUDIO, &index);
|
|
if (res == DEMUXER_CTRL_NOTIMPL) {
|
|
struct sh_audio *sh_audio = demuxer->audio->sh;
|
|
return sh_audio ? sh_audio->aid : -2;
|
|
}
|
|
if (demuxer->audio->id >= 0) {
|
|
struct sh_audio *sh_audio = demuxer->a_streams[demuxer->audio->id];
|
|
demuxer->audio->sh = sh_audio;
|
|
index = sh_audio->aid; // internal MPEG demuxers don't set it right
|
|
}
|
|
else
|
|
demuxer->audio->sh = NULL;
|
|
return index;
|
|
}
|
|
|
|
int demuxer_switch_video(demuxer_t *demuxer, int index)
|
|
{
|
|
int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_VIDEO, &index);
|
|
if (res == DEMUXER_CTRL_NOTIMPL) {
|
|
struct sh_video *sh_video = demuxer->video->sh;
|
|
return sh_video ? sh_video->vid : -2;
|
|
}
|
|
if (demuxer->video->id >= 0) {
|
|
struct sh_video *sh_video = demuxer->v_streams[demuxer->video->id];
|
|
demuxer->video->sh = sh_video;
|
|
index = sh_video->vid; // internal MPEG demuxers don't set it right
|
|
} else
|
|
demuxer->video->sh = NULL;
|
|
return index;
|
|
}
|
|
|
|
int demuxer_add_attachment(demuxer_t *demuxer, struct bstr name,
|
|
struct bstr type, struct bstr data)
|
|
{
|
|
if (!(demuxer->num_attachments % 32))
|
|
demuxer->attachments = talloc_realloc(demuxer, demuxer->attachments,
|
|
struct demux_attachment,
|
|
demuxer->num_attachments + 32);
|
|
|
|
struct demux_attachment *att =
|
|
demuxer->attachments + demuxer->num_attachments;
|
|
att->name = talloc_strndup(demuxer->attachments, name.start, name.len);
|
|
att->type = talloc_strndup(demuxer->attachments, type.start, type.len);
|
|
att->data = talloc_size(demuxer->attachments, data.len);
|
|
memcpy(att->data, data.start, data.len);
|
|
att->data_size = data.len;
|
|
|
|
return demuxer->num_attachments++;
|
|
}
|
|
|
|
static int chapter_compare(const void *p1, const void *p2)
|
|
{
|
|
struct demux_chapter *c1 = (void *)p1;
|
|
struct demux_chapter *c2 = (void *)p2;
|
|
|
|
if (c1->start > c2->start)
|
|
return 1;
|
|
else if (c1->start < c2->start)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
static void demuxer_sort_chapters(demuxer_t *demuxer)
|
|
{
|
|
qsort(demuxer->chapters, demuxer->num_chapters,
|
|
sizeof(struct demux_chapter), chapter_compare);
|
|
}
|
|
|
|
int demuxer_add_chapter(demuxer_t *demuxer, struct bstr name,
|
|
uint64_t start, uint64_t end)
|
|
{
|
|
if (!(demuxer->num_chapters % 32))
|
|
demuxer->chapters = talloc_realloc(demuxer, demuxer->chapters,
|
|
struct demux_chapter,
|
|
demuxer->num_chapters + 32);
|
|
|
|
demuxer->chapters[demuxer->num_chapters].start = start;
|
|
demuxer->chapters[demuxer->num_chapters].end = end;
|
|
demuxer->chapters[demuxer->num_chapters].name = name.len ?
|
|
talloc_strndup(demuxer->chapters, name.start, name.len) :
|
|
talloc_strdup(demuxer->chapters, mp_gtext("unknown"));
|
|
|
|
demuxer->num_chapters++;
|
|
|
|
if (demuxer->num_chapters > 1
|
|
&& demuxer->chapters[demuxer->num_chapters - 2].start
|
|
< demuxer->chapters[demuxer->num_chapters - 1].start)
|
|
demuxer_sort_chapters(demuxer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* \brief demuxer_seek_chapter() seeks to a chapter in two possible ways:
|
|
* either using the demuxer->chapters structure set by the demuxer
|
|
* or asking help to the stream layer (e.g. dvd)
|
|
* \param chapter - chapter number wished - 0-based
|
|
* \param seek_pts set by the function to the pts to seek to (if demuxer->chapters is set)
|
|
* \return -1 on error, current chapter if successful
|
|
*/
|
|
|
|
int demuxer_seek_chapter(demuxer_t *demuxer, int chapter, double *seek_pts)
|
|
{
|
|
int ris;
|
|
|
|
if (!demuxer->num_chapters || !demuxer->chapters) {
|
|
demux_flush(demuxer);
|
|
|
|
ris = stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_CHAPTER,
|
|
&chapter);
|
|
if (ris != STREAM_UNSUPPORTED)
|
|
demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
|
|
|
|
// exit status may be ok, but main() doesn't have to seek itself
|
|
// (because e.g. dvds depend on sectors, not on pts)
|
|
*seek_pts = -1.0;
|
|
|
|
return ris != STREAM_UNSUPPORTED ? chapter : -1;
|
|
} else { // chapters structure is set in the demuxer
|
|
if (chapter >= demuxer->num_chapters)
|
|
return -1;
|
|
if (chapter < 0)
|
|
chapter = 0;
|
|
|
|
*seek_pts = demuxer->chapters[chapter].start / 1e9;
|
|
|
|
return chapter;
|
|
}
|
|
}
|
|
|
|
int demuxer_get_current_chapter(demuxer_t *demuxer, double time_now)
|
|
{
|
|
int chapter = -2;
|
|
if (!demuxer->num_chapters || !demuxer->chapters) {
|
|
if (stream_control(demuxer->stream, STREAM_CTRL_GET_CURRENT_CHAPTER,
|
|
&chapter) == STREAM_UNSUPPORTED)
|
|
chapter = -2;
|
|
} else {
|
|
uint64_t now = time_now * 1e9 + 0.5;
|
|
for (chapter = demuxer->num_chapters - 1; chapter >= 0; --chapter) {
|
|
if (demuxer->chapters[chapter].start <= now)
|
|
break;
|
|
}
|
|
}
|
|
return chapter;
|
|
}
|
|
|
|
char *demuxer_chapter_name(demuxer_t *demuxer, int chapter)
|
|
{
|
|
if (demuxer->num_chapters && demuxer->chapters) {
|
|
if (chapter >= 0 && chapter < demuxer->num_chapters
|
|
&& demuxer->chapters[chapter].name)
|
|
return talloc_strdup(NULL, demuxer->chapters[chapter].name);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
float demuxer_chapter_time(demuxer_t *demuxer, int chapter, float *end)
|
|
{
|
|
if (demuxer->num_chapters && demuxer->chapters && chapter >= 0
|
|
&& chapter < demuxer->num_chapters) {
|
|
if (end)
|
|
*end = demuxer->chapters[chapter].end / 1e9;
|
|
return demuxer->chapters[chapter].start / 1e9;
|
|
}
|
|
return -1.0;
|
|
}
|
|
|
|
int demuxer_chapter_count(demuxer_t *demuxer)
|
|
{
|
|
if (!demuxer->num_chapters || !demuxer->chapters) {
|
|
int num_chapters = 0;
|
|
if (stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS,
|
|
&num_chapters) == STREAM_UNSUPPORTED)
|
|
num_chapters = 0;
|
|
return num_chapters;
|
|
} else
|
|
return demuxer->num_chapters;
|
|
}
|
|
|
|
int demuxer_angles_count(demuxer_t *demuxer)
|
|
{
|
|
int ris, angles = -1;
|
|
|
|
ris = stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_ANGLES, &angles);
|
|
if (ris == STREAM_UNSUPPORTED)
|
|
return -1;
|
|
return angles;
|
|
}
|
|
|
|
int demuxer_get_current_angle(demuxer_t *demuxer)
|
|
{
|
|
int ris, curr_angle = -1;
|
|
ris = stream_control(demuxer->stream, STREAM_CTRL_GET_ANGLE, &curr_angle);
|
|
if (ris == STREAM_UNSUPPORTED)
|
|
return -1;
|
|
return curr_angle;
|
|
}
|
|
|
|
|
|
int demuxer_set_angle(demuxer_t *demuxer, int angle)
|
|
{
|
|
int ris, angles = -1;
|
|
|
|
angles = demuxer_angles_count(demuxer);
|
|
if ((angles < 1) || (angle > angles))
|
|
return -1;
|
|
|
|
demux_flush(demuxer);
|
|
|
|
ris = stream_control(demuxer->stream, STREAM_CTRL_SET_ANGLE, &angle);
|
|
if (ris == STREAM_UNSUPPORTED)
|
|
return -1;
|
|
|
|
demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
|
|
|
|
return angle;
|
|
}
|
|
|
|
int demuxer_audio_track_by_lang_and_default(struct demuxer *d, char **langt)
|
|
{
|
|
int n = 0;
|
|
while (1) {
|
|
char *lang = langt ? langt[n++] : NULL;
|
|
int id = -1;
|
|
for (int i = 0; i < MAX_A_STREAMS; i++) {
|
|
struct sh_audio *sh = d->a_streams[i];
|
|
if (sh && (!lang || sh->lang && !strcmp(lang, sh->lang))) {
|
|
if (sh->default_track)
|
|
return sh->aid;
|
|
if (id < 0)
|
|
id = sh->aid;
|
|
}
|
|
}
|
|
if (id >= 0)
|
|
return id;
|
|
if (!lang)
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
int demuxer_sub_track_by_lang_and_default(struct demuxer *d, char **langt)
|
|
{
|
|
int n = 0;
|
|
while (1) {
|
|
char *lang = langt ? langt[n++] : NULL;
|
|
int id = -1;
|
|
for (int i = 0; i < MAX_S_STREAMS; i++) {
|
|
struct sh_sub *sh = d->s_streams[i];
|
|
if (sh && (!lang || sh->lang && !strcmp(lang, sh->lang))) {
|
|
if (sh->default_track)
|
|
return sh->sid;
|
|
if (id < 0)
|
|
id = sh->sid;
|
|
}
|
|
}
|
|
if (!lang)
|
|
return -1;
|
|
if (id >= 0)
|
|
return id;
|
|
}
|
|
}
|