prevent popup deactivation while button_down
[goodguy/history.git] / cinelerra-5.0 / cinelerra / fileac3.C
1
2 /*
3  * CINELERRA
4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  */
21
22 #include <stdio.h>
23 #include <stdint.h>
24 #include <stdlib.h>
25 #include <unistd.h>
26 #include <string.h>
27 #include <stdarg.h>
28 #include <ctype.h>
29 #include <limits.h>
30 // work around (centos) for __STDC_CONSTANT_MACROS
31 #include <lzma.h>
32 #ifndef INT64_MAX
33 #   define INT64_MAX 9223372036854775807LL
34 #endif
35
36 extern "C"
37 {
38 #include "libavcodec/avcodec.h"
39 }
40
41 #include "asset.h"
42 #include "clip.h"
43 #include "fileac3.h"
44 #include "file.h"
45 #include "filempeg.h"
46 #include "language.h"
47 #include "mainerror.h"
48
49
50
51 #include <string.h>
52
53 FileAC3::FileAC3(Asset *asset, File *file)
54  : FileBase(asset, file)
55 {
56         reset_parameters();
57         mpg_file = 0;
58 }
59
60 FileAC3::~FileAC3()
61 {
62         if( mpg_file ) delete mpg_file;
63         close_file();
64 }
65
66 int FileAC3::reset_parameters_derived()
67 {
68         codec = 0;
69         codec_context = 0;
70         resample_context = 0;
71         fd = 0;
72         temp_raw = 0;
73         temp_raw_size = 0;
74         temp_raw_allocated = 0;
75         temp_compressed = 0;
76         compressed_allocated = 0;
77         return 0;
78 }
79
80 void FileAC3::get_parameters(BC_WindowBase *parent_window,
81                 Asset *asset,
82                 BC_WindowBase* &format_window,
83                 int audio_options,
84                 int video_options)
85 {
86         if(audio_options)
87         {
88
89                 AC3ConfigAudio *window = new AC3ConfigAudio(parent_window, asset);
90                 format_window = window;
91                 window->create_objects();
92                 window->run_window();
93                 delete window;
94         }
95 }
96
97 int FileAC3::check_sig()
98 {
99 // Libmpeg3 does this in FileMPEG.
100         return 0;
101 }
102
103 int64_t FileAC3::get_channel_layout(int channels)
104 {
105         switch( channels ) {
106         case 1: return AV_CH_LAYOUT_MONO;
107         case 2: return AV_CH_LAYOUT_STEREO;
108         case 3: return AV_CH_LAYOUT_SURROUND;
109         case 4: return AV_CH_LAYOUT_QUAD;
110         case 5: return AV_CH_LAYOUT_5POINT0;
111         case 6: return AV_CH_LAYOUT_5POINT1;
112         case 8: return AV_CH_LAYOUT_7POINT1;
113         }
114         return 0;
115 }
116
117 int FileAC3::open_file(int rd, int wr)
118 {
119         int result = 0;
120
121         if(rd)
122         {
123                 if( !mpg_file )
124                         mpg_file = new FileMPEG(file->asset, file);
125                 result = mpg_file->open_file(1, 0);
126         }
127
128         if( !result && wr )
129         {
130                 //avcodec_init();
131                 avcodec_register_all();
132                 codec = avcodec_find_encoder(AV_CODEC_ID_AC3);
133                 if(!codec)
134                 {
135                         eprintf("FileAC3::open_file codec not found.\n");
136                         result = 1;
137                 }
138                 if( !result && !(fd = fopen(asset->path, "w")))
139                 {
140                         perror("FileAC3::open_file");
141                         result = 1;
142                 }
143                 if( !result ) {
144                         int channels = asset->channels;
145                         int sample_rate = asset->sample_rate;
146                         int64_t layout = get_channel_layout(channels);
147                         int bitrate = asset->ac3_bitrate * 1000;
148                         codec_context = avcodec_alloc_context3(codec);
149                         codec_context->bit_rate = bitrate;
150                         codec_context->sample_rate = sample_rate;
151                         codec_context->channels = channels;
152                         codec_context->channel_layout = layout;
153                         codec_context->sample_fmt = codec->sample_fmts[0];
154                         resample_context = swr_alloc_set_opts(NULL,
155                                         layout, codec_context->sample_fmt, sample_rate,
156                                         layout, AV_SAMPLE_FMT_S16, sample_rate,
157                                         0, NULL);
158                         swr_init(resample_context);
159                         if(avcodec_open2(codec_context, codec, 0))
160                         {
161                                 eprintf("FileAC3::open_file failed to open codec.\n");
162                                 result = 1;
163                         }
164                 }
165         }
166
167         return 0;
168 }
169
170 int FileAC3::close_file()
171 {
172         if( mpg_file )
173         {
174                 delete mpg_file;
175                 mpg_file = 0;
176         }
177         if(codec_context)
178         {
179                 avcodec_close(codec_context);
180                 free(codec_context);
181                 codec_context = 0;
182                 codec = 0;
183         }
184         if( resample_context )
185                 swr_free(&resample_context);
186         if(fd)
187         {
188                 fclose(fd);
189                 fd = 0;
190         }
191         if(temp_raw)
192         {
193                 delete [] temp_raw;
194                 temp_raw = 0;
195         }
196         if(temp_compressed)
197         {
198                 delete [] temp_compressed;
199                 temp_compressed = 0;
200         }
201         reset_parameters();
202         FileBase::close_file();
203         return 0;
204 }
205
206 int FileAC3::read_samples(double *buffer, int64_t len)
207 {
208         return !mpg_file ? 0 : mpg_file->read_samples(buffer, len);
209 }
210
211 int FileAC3::get_index(char *index_path)
212 {
213         return !mpg_file ? 1 : mpg_file->get_index(index_path);
214 }
215
216 // Channel conversion matrices because ffmpeg encodes a
217 // different channel order than liba52 decodes.
218 // Each row is an output channel.
219 // Each column is an input channel.
220 // static int channels5[] =
221 // {
222 //      { }
223 // };
224 //
225 // static int channels6[] =
226 // {
227 //      { }
228 // };
229
230
231 int FileAC3::write_samples(double **buffer, int64_t len)
232 {
233 // Convert buffer to encoder format
234         if(temp_raw_size + len > temp_raw_allocated)
235         {
236                 int new_allocated = temp_raw_size + len;
237                 int16_t *new_raw = new int16_t[new_allocated * asset->channels];
238                 if(temp_raw)
239                 {
240                         memcpy(new_raw,
241                                 temp_raw,
242                                 sizeof(int16_t) * temp_raw_size * asset->channels);
243                         delete [] temp_raw;
244                 }
245                 temp_raw = new_raw;
246                 temp_raw_allocated = new_allocated;
247         }
248
249 // Allocate compressed data buffer
250         if(temp_raw_allocated * asset->channels * 2 > compressed_allocated)
251         {
252                 compressed_allocated = temp_raw_allocated * asset->channels * 2;
253                 delete [] temp_compressed;
254                 temp_compressed = new unsigned char[compressed_allocated];
255         }
256
257 // Append buffer to temp raw
258         int16_t *out_ptr = temp_raw + temp_raw_size * asset->channels;
259         for(int i = 0; i < len; i++)
260         {
261                 for(int j = 0; j < asset->channels; j++)
262                 {
263                         int sample = (int)(buffer[j][i] * 32767);
264                         CLAMP(sample, -32768, 32767);
265                         *out_ptr++ = sample;
266                 }
267         }
268         temp_raw_size += len;
269         
270         AVCodecContext *&avctx = codec_context;
271         int frame_size = avctx->frame_size;
272         int output_size = 0, cur_sample = 0, ret = 0;
273         for(cur_sample = 0; !ret &&
274                 cur_sample + frame_size <= temp_raw_size;
275                 cur_sample += frame_size)
276         {
277                 AVPacket avpkt;
278                 av_init_packet(&avpkt);
279                 avpkt.data = temp_compressed + output_size;
280                 avpkt.size = compressed_allocated - output_size;
281                 AVFrame *frame = av_frame_alloc();
282                 frame->nb_samples = frame_size;
283                 frame->format = avctx->sample_fmt;
284                 frame->channel_layout = avctx->channel_layout;
285                 frame->sample_rate = avctx->sample_rate;
286                 ret = av_frame_get_buffer(frame, 0);
287                 if( ret >= 0 ) {
288                         const uint8_t *samples = (uint8_t *)temp_raw +
289                                 cur_sample * sizeof(int16_t) * asset->channels;
290                         ret = swr_convert(resample_context,
291                                 (uint8_t **)frame->extended_data, frame_size,
292                                 &samples, frame_size);
293                 }
294                 if( ret >= 0 ) {
295                         frame->pts = avctx->sample_rate && avctx->time_base.num ?
296                                 file->get_audio_position() : AV_NOPTS_VALUE ;
297                         int got_packet = 0;
298                         ret = avcodec_encode_audio2(avctx, &avpkt, frame, &got_packet);
299                         if( ret < 0 ) {
300                                 char errmsg[BCSTRLEN];
301                                 av_strerror(ret, errmsg, sizeof(errmsg));
302                                 fprintf(stderr, "avcodec_encode_audio2 failed. \n%s\n", errmsg);
303                         }
304                 }
305                 av_packet_free_side_data(&avpkt);
306                 output_size += avpkt.size;
307                 if(frame->extended_data != frame->data)
308                         av_freep(&frame->extended_data);
309                 av_frame_free(&frame);
310         }
311
312 // Shift buffer back
313         memcpy(temp_raw,
314                 temp_raw + cur_sample * asset->channels,
315                 (temp_raw_size - cur_sample) * sizeof(int16_t) * asset->channels);
316         temp_raw_size -= cur_sample;
317
318         int bytes_written = fwrite(temp_compressed, 1, output_size, fd);
319         if(bytes_written < output_size)
320         {
321                 eprintf("Error while writing samples. \n%m\n");
322                 return 1;
323         }
324         return 0;
325 }
326
327
328
329
330
331
332
333 AC3ConfigAudio::AC3ConfigAudio(BC_WindowBase *parent_window,
334         Asset *asset)
335  : BC_Window(PROGRAM_NAME ": Audio Compression",
336         parent_window->get_abs_cursor_x(1),
337         parent_window->get_abs_cursor_y(1),
338         500,
339         BC_OKButton::calculate_h() + 100,
340         500,
341         BC_OKButton::calculate_h() + 100,
342         0,
343         0,
344         1)
345 {
346         this->parent_window = parent_window;
347         this->asset = asset;
348 }
349
350 void AC3ConfigAudio::create_objects()
351 {
352         int x = 10, y = 10;
353         int x1 = 150;
354         lock_window("AC3ConfigAudio::create_objects");
355         add_tool(new BC_Title(x, y, "Bitrate (kbps):"));
356         AC3ConfigAudioBitrate *bitrate;
357         add_tool(bitrate =
358                 new AC3ConfigAudioBitrate(this,
359                         x1,
360                         y));
361         bitrate->create_objects();
362
363         add_subwindow(new BC_OKButton(this));
364         show_window(1);
365         unlock_window();
366 }
367
368 int AC3ConfigAudio::close_event()
369 {
370         set_done(0);
371         return 1;
372 }
373
374
375
376
377
378
379 AC3ConfigAudioBitrate::AC3ConfigAudioBitrate(AC3ConfigAudio *gui,
380         int x,
381         int y)
382  : BC_PopupMenu(x,
383         y,
384         150,
385         AC3ConfigAudioBitrate::bitrate_to_string(gui->string, gui->asset->ac3_bitrate))
386 {
387         this->gui = gui;
388 }
389
390 char* AC3ConfigAudioBitrate::bitrate_to_string(char *string, int bitrate)
391 {
392         sprintf(string, "%d", bitrate);
393         return string;
394 }
395
396 void AC3ConfigAudioBitrate::create_objects()
397 {
398         add_item(new BC_MenuItem("32"));
399         add_item(new BC_MenuItem("40"));
400         add_item(new BC_MenuItem("48"));
401         add_item(new BC_MenuItem("56"));
402         add_item(new BC_MenuItem("64"));
403         add_item(new BC_MenuItem("80"));
404         add_item(new BC_MenuItem("96"));
405         add_item(new BC_MenuItem("112"));
406         add_item(new BC_MenuItem("128"));
407         add_item(new BC_MenuItem("160"));
408         add_item(new BC_MenuItem("192"));
409         add_item(new BC_MenuItem("224"));
410         add_item(new BC_MenuItem("256"));
411         add_item(new BC_MenuItem("320"));
412         add_item(new BC_MenuItem("384"));
413         add_item(new BC_MenuItem("448"));
414         add_item(new BC_MenuItem("512"));
415         add_item(new BC_MenuItem("576"));
416         add_item(new BC_MenuItem("640"));
417 }
418
419 int AC3ConfigAudioBitrate::handle_event()
420 {
421         gui->asset->ac3_bitrate = atol(get_text());
422         return 1;
423 }
424
425
426