gl_common: add OpenGL 3.x context creation
[mplayer.git] / libmpdemux / demux_avs.c
blobe90e36c1a7b039244098f31ad5ef9235ef6fc0de
1 /*
2 * Demuxer for avisynth
3 * Copyright (c) 2005 Gianluigi Tiesi <sherpya@netfarm.it>
5 * This file is part of MPlayer.
7 * MPlayer is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * MPlayer is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with MPlayer; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <unistd.h>
25 #include <limits.h>
27 #include "config.h"
28 #include "mp_msg.h"
30 #include "stream/stream.h"
31 #include "demuxer.h"
32 #include "stheader.h"
33 #include "libvo/fastmemcpy.h"
35 #include "loader/wine/winbase.h"
36 #include "loader/wine/windef.h"
38 #ifdef WIN32_LOADER
39 #include "loader/ldt_keeper.h"
40 #endif
42 #include "demux_avs.h"
44 #define MAX_AVS_SIZE 16 * 1024 /* 16k should be enough */
46 typedef WINAPI AVS_ScriptEnvironment* (*imp_avs_create_script_environment)(int version);
47 typedef WINAPI AVS_Value (*imp_avs_invoke)(AVS_ScriptEnvironment *, const char * name, AVS_Value args, const char** arg_names);
48 typedef WINAPI const AVS_VideoInfo *(*imp_avs_get_video_info)(AVS_Clip *);
49 typedef WINAPI AVS_Clip* (*imp_avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
50 typedef WINAPI void (*imp_avs_release_clip)(AVS_Clip *);
51 typedef WINAPI AVS_VideoFrame* (*imp_avs_get_frame)(AVS_Clip *, int n);
52 typedef WINAPI void (*imp_avs_release_video_frame)(AVS_VideoFrame *);
53 typedef WINAPI int (*imp_avs_get_audio)(AVS_Clip *, void * buf, uint64_t start, uint64_t count);
55 #define Q(string) # string
56 #define IMPORT_FUNC(x) \
57 AVS->x = ( imp_##x ) GetProcAddress(AVS->dll, Q(x)); \
58 if (!AVS->x) { mp_msg(MSGT_DEMUX,MSGL_V,"AVS: failed to load "Q(x)"()\n"); return 0; }
60 typedef struct tagAVS
62 AVS_ScriptEnvironment *avs_env;
63 AVS_Value handler;
64 AVS_Clip *clip;
65 const AVS_VideoInfo *video_info;
66 #ifdef WIN32_LOADER
67 ldt_fs_t* ldt_fs;
68 #endif
69 HMODULE dll;
70 int frameno;
71 uint64_t sampleno;
72 int init;
74 imp_avs_create_script_environment avs_create_script_environment;
75 imp_avs_invoke avs_invoke;
76 imp_avs_get_video_info avs_get_video_info;
77 imp_avs_take_clip avs_take_clip;
78 imp_avs_release_clip avs_release_clip;
79 imp_avs_get_frame avs_get_frame;
80 imp_avs_release_video_frame avs_release_video_frame;
81 imp_avs_get_audio avs_get_audio;
82 } AVS_T;
84 static AVS_T *initAVS(const char *filename)
86 AVS_T *AVS = malloc (sizeof(AVS_T));
87 AVS_Value arg0 = avs_new_value_string(filename);
88 AVS_Value args = avs_new_value_array(&arg0, 1);
90 memset(AVS, 0, sizeof(AVS_T));
92 #ifdef WIN32_LOADER
93 AVS->ldt_fs = Setup_LDT_Keeper();
94 #endif
96 AVS->dll = LoadLibraryA("avisynth.dll");
97 if(!AVS->dll)
99 mp_msg(MSGT_DEMUX ,MSGL_V, "AVS: failed to load avisynth.dll\n");
100 goto avs_err;
103 /* Dynamic import of needed stuff from avisynth.dll */
104 IMPORT_FUNC(avs_create_script_environment);
105 IMPORT_FUNC(avs_invoke);
106 IMPORT_FUNC(avs_get_video_info);
107 IMPORT_FUNC(avs_take_clip);
108 IMPORT_FUNC(avs_release_clip);
109 IMPORT_FUNC(avs_get_frame);
110 IMPORT_FUNC(avs_release_video_frame);
111 IMPORT_FUNC(avs_get_audio);
113 AVS->avs_env = AVS->avs_create_script_environment(AVISYNTH_INTERFACE_VERSION);
114 if (!AVS->avs_env)
116 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_create_script_environment failed\n");
117 goto avs_err;
121 AVS->handler = AVS->avs_invoke(AVS->avs_env, "Import", args, 0);
123 if (avs_is_error(AVS->handler))
125 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Avisynth error: %s\n", avs_as_string(AVS->handler));
126 goto avs_err;
129 if (!avs_is_clip(AVS->handler))
131 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Avisynth doesn't return a clip\n");
132 goto avs_err;
135 return AVS;
137 avs_err:
138 if (AVS->dll) FreeLibrary(AVS->dll);
139 #ifdef WIN32_LOADER
140 Restore_LDT_Keeper(AVS->ldt_fs);
141 #endif
142 free(AVS);
143 return NULL;
146 /* Implement RGB MODES ?? */
147 #if 0
148 static __inline int get_mmioFOURCC(const AVS_VideoInfo *v)
150 if (avs_is_rgb(v)) return mmioFOURCC(8, 'R', 'G', 'B');
151 if (avs_is_rgb24(v)) return mmioFOURCC(24, 'R', 'G', 'B');
152 if (avs_is_rgb32(v)) return mmioFOURCC(32, 'R', 'G', 'B');
153 if (avs_is_yv12(v)) return mmioFOURCC('Y', 'V', '1', '2');
154 if (avs_is_yuy(v)) return mmioFOURCC('Y', 'U', 'Y', ' ');
155 if (avs_is_yuy2(v)) return mmioFOURCC('Y', 'U', 'Y', '2');
156 return 0;
158 #endif
160 static int demux_avs_fill_buffer(demuxer_t *demuxer, demux_stream_t *ds)
162 AVS_VideoFrame *curr_frame;
163 demux_packet_t *dp = NULL;
164 AVS_T *AVS = demuxer->priv;
166 if (ds == demuxer->video)
168 sh_video_t *sh_video = demuxer->video->sh;
169 char *dst;
170 int w, h;
171 if (AVS->video_info->num_frames <= AVS->frameno) return 0; // EOF
173 curr_frame = AVS->avs_get_frame(AVS->clip, AVS->frameno);
174 if (!curr_frame)
176 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: error getting frame -- EOF??\n");
177 return 0;
179 w = curr_frame->row_size;
180 h = curr_frame->height;
182 dp = new_demux_packet(w * h + 2 * (w / 2) * (h / 2));
184 dp->pts=AVS->frameno / sh_video->fps;
186 dst = dp->buffer;
187 memcpy_pic(dst, curr_frame->vfb->data + curr_frame->offset,
188 w, h, w, curr_frame->pitch);
189 dst += w * h;
190 w /= 2; h /= 2;
191 memcpy_pic(dst, curr_frame->vfb->data + curr_frame->offsetV,
192 w, h, w, curr_frame->pitchUV);
193 dst += w * h;
194 memcpy_pic(dst, curr_frame->vfb->data + curr_frame->offsetU,
195 w, h, w, curr_frame->pitchUV);
196 ds_add_packet(demuxer->video, dp);
198 AVS->frameno++;
199 AVS->avs_release_video_frame(curr_frame);
202 /* Audio */
203 if (ds == demuxer->audio)
205 sh_audio_t *sh_audio = ds->sh;
206 int samples = sh_audio->samplerate;
207 uint64_t l;
208 samples = FFMIN(samples, AVS->video_info->num_audio_samples - AVS->sampleno);
209 if (!samples) return 0;
210 l = samples * sh_audio->channels * sh_audio->samplesize;
211 if (l > INT_MAX) {
212 mp_msg(MSGT_DEMUX, MSGL_FATAL, "AVS: audio packet too big\n");
213 return 0;
215 dp = new_demux_packet(l);
216 dp->pts = AVS->sampleno / sh_audio->samplerate;
218 if (AVS->avs_get_audio(AVS->clip, dp->buffer, AVS->sampleno, samples))
220 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_get_audio() failed\n");
221 return 0;
223 ds_add_packet(demuxer->audio, dp);
225 AVS->sampleno += samples;
228 return 1;
231 static demuxer_t* demux_open_avs(demuxer_t* demuxer)
233 int found = 0;
234 AVS_T *AVS = demuxer->priv;
235 int audio_samplesize = 0;
236 AVS->frameno = 0;
237 AVS->sampleno = 0;
239 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: demux_open_avs()\n");
240 demuxer->seekable = 1;
242 AVS->clip = AVS->avs_take_clip(AVS->handler, AVS->avs_env);
243 if(!AVS->clip)
245 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_take_clip() failed\n");
246 return NULL;
249 AVS->video_info = AVS->avs_get_video_info(AVS->clip);
250 if (!AVS->video_info)
252 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_get_video_info() call failed\n");
253 return NULL;
256 if (!avs_is_yv12(AVS->video_info))
258 AVS->handler = AVS->avs_invoke(AVS->avs_env, "ConvertToYV12", avs_new_value_array(&AVS->handler, 1), 0);
259 if (avs_is_error(AVS->handler))
261 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Cannot convert input video to YV12: %s\n", avs_as_string(AVS->handler));
262 return NULL;
265 AVS->clip = AVS->avs_take_clip(AVS->handler, AVS->avs_env);
267 if(!AVS->clip)
269 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_take_clip() failed\n");
270 return NULL;
273 AVS->video_info = AVS->avs_get_video_info(AVS->clip);
274 if (!AVS->video_info)
276 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_get_video_info() call failed\n");
277 return NULL;
281 // TODO check field-based ??
283 /* Video */
284 if (avs_has_video(AVS->video_info))
286 sh_video_t *sh_video = new_sh_video(demuxer, 0);
287 found = 1;
289 if (demuxer->video->id == -1) demuxer->video->id = 0;
290 if (demuxer->video->id == 0)
291 demuxer->video->sh = sh_video;
292 sh_video->ds = demuxer->video;
294 sh_video->disp_w = AVS->video_info->width;
295 sh_video->disp_h = AVS->video_info->height;
297 //sh_video->format = get_mmioFOURCC(AVS->video_info);
298 sh_video->format = mmioFOURCC('Y', 'V', '1', '2');
299 sh_video->fps = (double) AVS->video_info->fps_numerator / (double) AVS->video_info->fps_denominator;
300 sh_video->frametime = 1.0 / sh_video->fps;
302 sh_video->bih = malloc(sizeof(*sh_video->bih) + (256 * 4));
303 sh_video->bih->biCompression = sh_video->format;
304 sh_video->bih->biBitCount = avs_bits_per_pixel(AVS->video_info);
305 //sh_video->bih->biPlanes = 2;
307 sh_video->bih->biWidth = AVS->video_info->width;
308 sh_video->bih->biHeight = AVS->video_info->height;
309 sh_video->num_frames = 0;
310 sh_video->num_frames_decoded = 0;
313 /* Audio */
314 if (avs_has_audio(AVS->video_info))
315 switch (AVS->video_info->sample_type) {
316 case AVS_SAMPLE_INT8: audio_samplesize = 1; break;
317 case AVS_SAMPLE_INT16: audio_samplesize = 2; break;
318 case AVS_SAMPLE_INT24: audio_samplesize = 3; break;
319 case AVS_SAMPLE_INT32:
320 case AVS_SAMPLE_FLOAT: audio_samplesize = 4; break;
321 default:
322 mp_msg(MSGT_DEMUX, MSGL_ERR, "AVS: unknown audio type, disabling\n");
324 if (audio_samplesize)
326 sh_audio_t *sh_audio = new_sh_audio(demuxer, 0);
327 found = 1;
328 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);
330 if (demuxer->audio->id == -1) demuxer->audio->id = 0;
331 if (demuxer->audio->id == 0)
332 demuxer->audio->sh = sh_audio;
333 sh_audio->ds = demuxer->audio;
335 sh_audio->wf = malloc(sizeof(*sh_audio->wf));
336 sh_audio->wf->wFormatTag = sh_audio->format =
337 (AVS->video_info->sample_type == AVS_SAMPLE_FLOAT) ? 0x3 : 0x1;
338 sh_audio->wf->nChannels = sh_audio->channels = AVS->video_info->nchannels;
339 sh_audio->wf->nSamplesPerSec = sh_audio->samplerate = AVS->video_info->audio_samples_per_second;
340 sh_audio->samplesize = audio_samplesize;
341 sh_audio->wf->nAvgBytesPerSec = sh_audio->channels * sh_audio->samplesize * sh_audio->samplerate;
342 sh_audio->wf->nBlockAlign = sh_audio->channels * sh_audio->samplesize;
343 sh_audio->wf->wBitsPerSample = sh_audio->samplesize * 8;
344 sh_audio->wf->cbSize = 0;
345 sh_audio->i_bps = sh_audio->wf->nAvgBytesPerSec;
348 AVS->init = 1;
349 if (found)
350 return demuxer;
351 else
352 return NULL;
355 static int demux_avs_control(demuxer_t *demuxer, int cmd, void *arg)
357 sh_video_t *sh_video=demuxer->video->sh;
358 sh_audio_t *sh_audio=demuxer->audio->sh;
359 AVS_T *AVS = demuxer->priv;
361 switch(cmd)
363 case DEMUXER_CTRL_GET_TIME_LENGTH:
365 double res = sh_video ? (double)AVS->video_info->num_frames / sh_video->fps : 0;
366 if (sh_audio)
367 res = FFMAX(res, (double)AVS->video_info->num_audio_samples / sh_audio->samplerate);
368 *((double *)arg) = res;
369 return DEMUXER_CTRL_OK;
371 case DEMUXER_CTRL_GET_PERCENT_POS:
373 if (sh_video)
374 *((int *)arg) = AVS->frameno * 100 / AVS->video_info->num_frames;
375 else
376 *((int *)arg) = AVS->sampleno * 100 / AVS->video_info->num_audio_samples;
377 return DEMUXER_CTRL_OK;
379 default:
380 return DEMUXER_CTRL_NOTIMPL;
384 static void demux_close_avs(demuxer_t* demuxer)
386 AVS_T *AVS = demuxer->priv;
388 if (AVS)
390 if (AVS->dll)
392 if (AVS->clip)
393 AVS->avs_release_clip(AVS->clip);
394 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: Unloading avisynth.dll\n");
395 FreeLibrary(AVS->dll);
397 #ifdef WIN32_LOADER
398 Restore_LDT_Keeper(AVS->ldt_fs);
399 #endif
400 free(AVS);
404 static void demux_seek_avs(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
406 sh_video_t *sh_video=demuxer->video->sh;
407 sh_audio_t *sh_audio=demuxer->audio->sh;
408 AVS_T *AVS = demuxer->priv;
409 double video_pos = sh_video ?
410 (double)AVS->frameno / sh_video->fps :
411 (double)AVS->sampleno / sh_audio->samplerate;
412 double duration = sh_video ?
413 (double)AVS->video_info->num_frames / sh_video->fps :
414 (double)AVS->video_info->num_audio_samples / sh_audio->samplerate;
416 //mp_msg(MSGT_DEMUX, MSGL_V, "AVS: seek rel_seek_secs = %f - flags = %x\n", rel_seek_secs, flags);
418 if (flags&SEEK_ABSOLUTE) video_pos=0;
419 if (flags&SEEK_FACTOR) rel_seek_secs *= duration;
421 video_pos += rel_seek_secs;
422 if (video_pos < 0) video_pos = 0;
424 if (sh_video) {
425 AVS->frameno = FFMIN(video_pos * sh_video->fps,
426 AVS->video_info->num_frames);
427 sh_video->num_frames_decoded = AVS->frameno;
428 sh_video->num_frames = AVS->frameno;
430 video_pos += audio_delay;
431 if (video_pos < 0) video_pos = 0;
432 if (sh_audio)
433 AVS->sampleno = FFMIN(video_pos * sh_audio->samplerate,
434 AVS->video_info->num_audio_samples);
437 static int avs_check_file(demuxer_t *demuxer)
439 mp_msg(MSGT_DEMUX, MSGL_V, "AVS: avs_check_file - attempting to open file %s\n", demuxer->filename);
441 if (!demuxer->filename) return 0;
443 /* Avoid crazy memory eating when passing an mpg stream */
444 if (demuxer->movi_end > MAX_AVS_SIZE)
446 mp_msg(MSGT_DEMUX,MSGL_V, "AVS: File is too big, aborting...\n");
447 return 0;
450 demuxer->priv = initAVS(demuxer->filename);
452 if (demuxer->priv)
454 mp_msg(MSGT_DEMUX,MSGL_V, "AVS: Init Ok\n");
455 return DEMUXER_TYPE_AVS;
457 mp_msg(MSGT_DEMUX,MSGL_V, "AVS: Init failed\n");
458 return 0;
462 const demuxer_desc_t demuxer_desc_avs = {
463 "Avisynth demuxer",
464 "avs",
465 "AVS",
466 "Gianluigi Tiesi",
467 "Requires binary dll",
468 DEMUXER_TYPE_AVS,
469 0, // unsafe autodetect
470 avs_check_file,
471 demux_avs_fill_buffer,
472 demux_open_avs,
473 demux_close_avs,
474 demux_seek_avs,
475 demux_avs_control