mirror of
https://github.com/mpv-player/mpv
synced 2024-12-24 07:42:17 +00:00
4ca1fa0a08
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27614 b3059339-0415-0410-9bf9-f77b7e298cf2
481 lines
15 KiB
C
481 lines
15 KiB
C
/*
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* Demuxer for avisynth
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* Copyright (c) 2005 Gianluigi Tiesi <sherpya@netfarm.it>
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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
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along 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 <unistd.h>
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#include <limits.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "help_mp.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 "libvo/fastmemcpy.h"
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#include "loader/wine/windef.h"
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#ifdef WIN32_LOADER
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#include "loader/ldt_keeper.h"
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#endif
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#include "demux_avs.h"
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#define MAX_AVS_SIZE 16 * 1024 /* 16k should be enough */
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HMODULE WINAPI LoadLibraryA(LPCSTR);
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FARPROC WINAPI GetProcAddress(HMODULE,LPCSTR);
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int WINAPI FreeLibrary(HMODULE);
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typedef WINAPI AVS_ScriptEnvironment* (*imp_avs_create_script_environment)(int version);
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typedef WINAPI AVS_Value (*imp_avs_invoke)(AVS_ScriptEnvironment *, const char * name, AVS_Value args, const char** arg_names);
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typedef WINAPI const AVS_VideoInfo *(*imp_avs_get_video_info)(AVS_Clip *);
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typedef WINAPI AVS_Clip* (*imp_avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
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typedef WINAPI void (*imp_avs_release_clip)(AVS_Clip *);
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typedef WINAPI AVS_VideoFrame* (*imp_avs_get_frame)(AVS_Clip *, int n);
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typedef WINAPI void (*imp_avs_release_video_frame)(AVS_VideoFrame *);
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typedef WINAPI int (*imp_avs_get_audio)(AVS_Clip *, void * buf, uint64_t start, uint64_t count);
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#define Q(string) # string
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#define IMPORT_FUNC(x) \
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AVS->x = ( imp_##x ) GetProcAddress(AVS->dll, Q(x)); \
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if (!AVS->x) { mp_msg(MSGT_DEMUX,MSGL_V,"AVS: failed to load "Q(x)"()\n"); return 0; }
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typedef struct tagAVS
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{
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AVS_ScriptEnvironment *avs_env;
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AVS_Value handler;
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AVS_Clip *clip;
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const AVS_VideoInfo *video_info;
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#ifdef WIN32_LOADER
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ldt_fs_t* ldt_fs;
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#endif
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HMODULE dll;
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int frameno;
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uint64_t sampleno;
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int init;
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imp_avs_create_script_environment avs_create_script_environment;
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imp_avs_invoke avs_invoke;
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imp_avs_get_video_info avs_get_video_info;
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imp_avs_take_clip avs_take_clip;
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imp_avs_release_clip avs_release_clip;
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imp_avs_get_frame avs_get_frame;
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imp_avs_release_video_frame avs_release_video_frame;
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imp_avs_get_audio avs_get_audio;
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} AVS_T;
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AVS_T *initAVS(const char *filename)
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{
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AVS_T *AVS = malloc (sizeof(AVS_T));
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AVS_Value arg0 = avs_new_value_string(filename);
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AVS_Value args = avs_new_value_array(&arg0, 1);
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memset(AVS, 0, sizeof(AVS_T));
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#ifdef WIN32_LOADER
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AVS->ldt_fs = Setup_LDT_Keeper();
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#endif
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AVS->dll = LoadLibraryA("avisynth.dll");
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if(!AVS->dll)
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{
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mp_msg(MSGT_DEMUX ,MSGL_V, "AVS: failed to load avisynth.dll\n");
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goto avs_err;
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}
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/* Dynamic import of needed stuff from avisynth.dll */
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IMPORT_FUNC(avs_create_script_environment);
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IMPORT_FUNC(avs_invoke);
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IMPORT_FUNC(avs_get_video_info);
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IMPORT_FUNC(avs_take_clip);
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IMPORT_FUNC(avs_release_clip);
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IMPORT_FUNC(avs_get_frame);
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IMPORT_FUNC(avs_release_video_frame);
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IMPORT_FUNC(avs_get_audio);
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AVS->avs_env = AVS->avs_create_script_environment(AVISYNTH_INTERFACE_VERSION);
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if (!AVS->avs_env)
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_create_script_environment failed\n");
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goto avs_err;
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}
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AVS->handler = AVS->avs_invoke(AVS->avs_env, "Import", args, 0);
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if (avs_is_error(AVS->handler))
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Avisynth error: %s\n", avs_as_string(AVS->handler));
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goto avs_err;
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}
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if (!avs_is_clip(AVS->handler))
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Avisynth doesn't return a clip\n");
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goto avs_err;
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}
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return AVS;
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avs_err:
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if (AVS->dll) FreeLibrary(AVS->dll);
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#ifdef WIN32_LOADER
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Restore_LDT_Keeper(AVS->ldt_fs);
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#endif
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free(AVS);
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return NULL;
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}
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/* Implement RGB MODES ?? */
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#if 0
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static __inline int get_mmioFOURCC(const AVS_VideoInfo *v)
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{
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if (avs_is_rgb(v)) return mmioFOURCC(8, 'R', 'G', 'B');
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if (avs_is_rgb24(v)) return mmioFOURCC(24, 'R', 'G', 'B');
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if (avs_is_rgb32(v)) return mmioFOURCC(32, 'R', 'G', 'B');
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if (avs_is_yv12(v)) return mmioFOURCC('Y', 'V', '1', '2');
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if (avs_is_yuy(v)) return mmioFOURCC('Y', 'U', 'Y', ' ');
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if (avs_is_yuy2(v)) return mmioFOURCC('Y', 'U', 'Y', '2');
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return 0;
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}
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#endif
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static int demux_avs_fill_buffer(demuxer_t *demuxer, demux_stream_t *ds)
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{
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AVS_VideoFrame *curr_frame;
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demux_packet_t *dp = NULL;
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AVS_T *AVS = demuxer->priv;
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if (ds == demuxer->video)
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{
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sh_video_t *sh_video = demuxer->video->sh;
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char *dst;
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int w, h;
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if (AVS->video_info->num_frames <= AVS->frameno) return 0; // EOF
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curr_frame = AVS->avs_get_frame(AVS->clip, AVS->frameno);
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if (!curr_frame)
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: error getting frame -- EOF??\n");
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return 0;
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}
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w = curr_frame->row_size;
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h = curr_frame->height;
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dp = new_demux_packet(w * h + 2 * (w / 2) * (h / 2));
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dp->pts=AVS->frameno / sh_video->fps;
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dst = dp->buffer;
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memcpy_pic(dst, curr_frame->vfb->data + curr_frame->offset,
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w, h, w, curr_frame->pitch);
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dst += w * h;
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w /= 2; h /= 2;
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memcpy_pic(dst, curr_frame->vfb->data + curr_frame->offsetV,
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w, h, w, curr_frame->pitchUV);
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dst += w * h;
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memcpy_pic(dst, curr_frame->vfb->data + curr_frame->offsetU,
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w, h, w, curr_frame->pitchUV);
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ds_add_packet(demuxer->video, dp);
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AVS->frameno++;
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AVS->avs_release_video_frame(curr_frame);
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}
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/* Audio */
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if (ds == demuxer->audio)
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{
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sh_audio_t *sh_audio = ds->sh;
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int samples = sh_audio->samplerate;
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uint64_t l;
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samples = FFMIN(samples, AVS->video_info->num_audio_samples - AVS->sampleno);
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if (!samples) return 0;
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l = samples * sh_audio->channels * sh_audio->samplesize;
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if (l > INT_MAX) {
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mp_msg(MSGT_DEMUX, MSGL_FATAL, "AVS: audio packet too big\n");
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return 0;
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}
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dp = new_demux_packet(l);
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dp->pts = AVS->sampleno / sh_audio->samplerate;
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if (AVS->avs_get_audio(AVS->clip, dp->buffer, AVS->sampleno, samples))
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_get_audio() failed\n");
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return 0;
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}
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ds_add_packet(demuxer->audio, dp);
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AVS->sampleno += samples;
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}
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return 1;
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}
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static demuxer_t* demux_open_avs(demuxer_t* demuxer)
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{
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int found = 0;
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AVS_T *AVS = demuxer->priv;
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int audio_samplesize = 0;
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AVS->frameno = 0;
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AVS->sampleno = 0;
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: demux_open_avs()\n");
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demuxer->seekable = 1;
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AVS->clip = AVS->avs_take_clip(AVS->handler, AVS->avs_env);
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if(!AVS->clip)
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_take_clip() failed\n");
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return NULL;
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}
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AVS->video_info = AVS->avs_get_video_info(AVS->clip);
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if (!AVS->video_info)
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_get_video_info() call failed\n");
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return NULL;
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}
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if (!avs_is_yv12(AVS->video_info))
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{
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AVS->handler = AVS->avs_invoke(AVS->avs_env, "ConvertToYV12", avs_new_value_array(&AVS->handler, 1), 0);
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if (avs_is_error(AVS->handler))
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Cannot convert input video to YV12: %s\n", avs_as_string(AVS->handler));
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return NULL;
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}
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AVS->clip = AVS->avs_take_clip(AVS->handler, AVS->avs_env);
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if(!AVS->clip)
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_take_clip() failed\n");
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return NULL;
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}
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AVS->video_info = AVS->avs_get_video_info(AVS->clip);
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if (!AVS->video_info)
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_get_video_info() call failed\n");
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return NULL;
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}
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}
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// TODO check field-based ??
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/* Video */
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if (avs_has_video(AVS->video_info))
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{
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sh_video_t *sh_video = new_sh_video(demuxer, 0);
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found = 1;
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if (demuxer->video->id == -1) demuxer->video->id = 0;
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if (demuxer->video->id == 0)
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demuxer->video->sh = sh_video;
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sh_video->ds = demuxer->video;
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sh_video->disp_w = AVS->video_info->width;
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sh_video->disp_h = AVS->video_info->height;
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//sh_video->format = get_mmioFOURCC(AVS->video_info);
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sh_video->format = mmioFOURCC('Y', 'V', '1', '2');
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sh_video->fps = (double) AVS->video_info->fps_numerator / (double) AVS->video_info->fps_denominator;
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sh_video->frametime = 1.0 / sh_video->fps;
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sh_video->bih = malloc(sizeof(BITMAPINFOHEADER) + (256 * 4));
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sh_video->bih->biCompression = sh_video->format;
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sh_video->bih->biBitCount = avs_bits_per_pixel(AVS->video_info);
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//sh_video->bih->biPlanes = 2;
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sh_video->bih->biWidth = AVS->video_info->width;
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sh_video->bih->biHeight = AVS->video_info->height;
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sh_video->num_frames = 0;
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sh_video->num_frames_decoded = 0;
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}
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/* Audio */
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if (avs_has_audio(AVS->video_info))
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switch (AVS->video_info->sample_type) {
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case AVS_SAMPLE_INT8: audio_samplesize = 1; break;
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case AVS_SAMPLE_INT16: audio_samplesize = 2; break;
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case AVS_SAMPLE_INT24: audio_samplesize = 3; break;
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case AVS_SAMPLE_INT32:
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case AVS_SAMPLE_FLOAT: audio_samplesize = 4; break;
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default:
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mp_msg(MSGT_DEMUX, MSGL_ERR, "AVS: unknown audio type, disabling\n");
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}
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if (audio_samplesize)
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{
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sh_audio_t *sh_audio = new_sh_audio(demuxer, 0);
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found = 1;
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Clip has audio -> Channels = %d - Freq = %d\n", AVS->video_info->nchannels, AVS->video_info->audio_samples_per_second);
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if (demuxer->audio->id == -1) demuxer->audio->id = 0;
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if (demuxer->audio->id == 0)
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demuxer->audio->sh = sh_audio;
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sh_audio->ds = demuxer->audio;
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sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
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sh_audio->wf->wFormatTag = sh_audio->format =
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(AVS->video_info->sample_type == AVS_SAMPLE_FLOAT) ? 0x3 : 0x1;
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sh_audio->wf->nChannels = sh_audio->channels = AVS->video_info->nchannels;
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sh_audio->wf->nSamplesPerSec = sh_audio->samplerate = AVS->video_info->audio_samples_per_second;
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sh_audio->samplesize = audio_samplesize;
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sh_audio->wf->nAvgBytesPerSec = sh_audio->channels * sh_audio->samplesize * sh_audio->samplerate;
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sh_audio->wf->nBlockAlign = sh_audio->channels * sh_audio->samplesize;
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sh_audio->wf->wBitsPerSample = sh_audio->samplesize * 8;
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sh_audio->wf->cbSize = 0;
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sh_audio->i_bps = sh_audio->wf->nAvgBytesPerSec;
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}
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AVS->init = 1;
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if (found)
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return demuxer;
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else
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return NULL;
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}
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static int demux_avs_control(demuxer_t *demuxer, int cmd, void *arg)
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{
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sh_video_t *sh_video=demuxer->video->sh;
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sh_audio_t *sh_audio=demuxer->audio->sh;
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AVS_T *AVS = demuxer->priv;
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switch(cmd)
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{
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case DEMUXER_CTRL_GET_TIME_LENGTH:
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{
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double res = sh_video ? (double)AVS->video_info->num_frames / sh_video->fps : 0;
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if (sh_audio)
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res = FFMAX(res, (double)AVS->video_info->num_audio_samples / sh_audio->samplerate);
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*((double *)arg) = res;
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return DEMUXER_CTRL_OK;
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}
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case DEMUXER_CTRL_GET_PERCENT_POS:
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{
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if (sh_video)
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*((int *)arg) = AVS->frameno * 100 / AVS->video_info->num_frames;
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else
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*((int *)arg) = AVS->sampleno * 100 / AVS->video_info->num_audio_samples;
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return DEMUXER_CTRL_OK;
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}
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default:
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return DEMUXER_CTRL_NOTIMPL;
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}
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}
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static void demux_close_avs(demuxer_t* demuxer)
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{
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AVS_T *AVS = demuxer->priv;
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if (AVS)
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{
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if (AVS->dll)
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{
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if (AVS->clip)
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AVS->avs_release_clip(AVS->clip);
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mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Unloading avisynth.dll\n");
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FreeLibrary(AVS->dll);
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}
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#ifdef WIN32_LOADER
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Restore_LDT_Keeper(AVS->ldt_fs);
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#endif
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free(AVS);
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}
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}
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static void demux_seek_avs(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
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{
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sh_video_t *sh_video=demuxer->video->sh;
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sh_audio_t *sh_audio=demuxer->audio->sh;
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AVS_T *AVS = demuxer->priv;
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double video_pos = sh_video ?
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(double)AVS->frameno / sh_video->fps :
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(double)AVS->sampleno / sh_audio->samplerate;
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double duration = sh_video ?
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(double)AVS->video_info->num_frames / sh_video->fps :
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(double)AVS->video_info->num_audio_samples / sh_audio->samplerate;
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//mp_msg(MSGT_DEMUX, MSGL_V, "AVS: seek rel_seek_secs = %f - flags = %x\n", rel_seek_secs, flags);
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if (flags&SEEK_ABSOLUTE) video_pos=0;
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if (flags&SEEK_FACTOR) rel_seek_secs *= duration;
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video_pos += rel_seek_secs;
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if (video_pos < 0) video_pos = 0;
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if (sh_video) {
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AVS->frameno = FFMIN(video_pos * sh_video->fps,
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AVS->video_info->num_frames);
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sh_video->num_frames_decoded = AVS->frameno;
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sh_video->num_frames = AVS->frameno;
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}
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video_pos += audio_delay;
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if (video_pos < 0) video_pos = 0;
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if (sh_audio)
|
|
AVS->sampleno = FFMIN(video_pos * sh_audio->samplerate,
|
|
AVS->video_info->num_audio_samples);
|
|
}
|
|
|
|
static int avs_check_file(demuxer_t *demuxer)
|
|
{
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_check_file - attempting to open file %s\n", demuxer->filename);
|
|
|
|
if (!demuxer->filename) return 0;
|
|
|
|
/* Avoid crazy memory eating when passing an mpg stream */
|
|
if (demuxer->movi_end > MAX_AVS_SIZE)
|
|
{
|
|
mp_msg(MSGT_DEMUX,MSGL_V, "AVS: File is too big, aborting...\n");
|
|
return 0;
|
|
}
|
|
|
|
demuxer->priv = initAVS(demuxer->filename);
|
|
|
|
if (demuxer->priv)
|
|
{
|
|
mp_msg(MSGT_DEMUX,MSGL_V, "AVS: Init Ok\n");
|
|
return DEMUXER_TYPE_AVS;
|
|
}
|
|
mp_msg(MSGT_DEMUX,MSGL_V, "AVS: Init failed\n");
|
|
return 0;
|
|
}
|
|
|
|
|
|
const demuxer_desc_t demuxer_desc_avs = {
|
|
"Avisynth demuxer",
|
|
"avs",
|
|
"AVS",
|
|
"Gianluigi Tiesi",
|
|
"Requires binary dll",
|
|
DEMUXER_TYPE_AVS,
|
|
0, // unsafe autodetect
|
|
avs_check_file,
|
|
demux_avs_fill_buffer,
|
|
demux_open_avs,
|
|
demux_close_avs,
|
|
demux_seek_avs,
|
|
demux_avs_control
|
|
};
|