--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <alsa/asoundlib.h>
+#include <sys/time.h>
+#include <gtk/gtk.h>
+#include <gdk/gdk.h>
+
+const double nudge = 3.5;
+const double ahead = .5;
+
+#ifdef __cplusplus
+#include "libzmpeg3.h"
+#else
+#include "../libmpeg3/libmpeg3.h"
+#define zmpeg3_t mpeg3_t
+#endif
+
+zmpeg3_t *ysrc;
+
+/* alpha currently is broken in gdk */
+/* would render faster if alpha worked correctly */
+#define RGBA FALSE
+
+#if RGBA
+#define BPP 4
+#ifdef __cplusplus
+#define COLOR_MODEL zmpeg3_t::cmdl_RGBA8888
+#else
+#define COLOR_MODEL MPEG3_RGBA8888
+#endif
+
+#else
+#define BPP 3
+#ifdef __cplusplus
+#define COLOR_MODEL zmpeg3_t::cmdl_RGB888
+#else
+#define COLOR_MODEL MPEG3_RGB888
+#endif
+#endif
+
+
+#define AUDIO
+//#define VIDEO
+static int verbose = 0;
+
+/* c++ `pkg-config --cflags --libs gtk+-2.0` y.C ./x86_64/libzmpeg3.a -lpthread -lasound -lm */
+
+#ifdef AUDIO
+snd_pcm_t *zpcm = 0;
+snd_pcm_uframes_t zpcm_ufrm_size = 0;
+snd_pcm_sframes_t zpcm_sbfr_size = 0;
+snd_pcm_sframes_t zpcm_sper_size = 0;
+snd_pcm_sframes_t zpcm_total_samples = 0;
+double zpcm_play_time = 0.;
+pthread_mutex_t zpcm_lock;
+unsigned int zpcm_rate = 0;
+static const char *zpcm_device = "plughw:0,0";
+static unsigned int zpcm_bfr_time_us = 500000;
+static unsigned int zpcm_per_time_us = 200000;
+static snd_pcm_channel_area_t *zpcm_areas = 0;
+static int zpcm_channels = 0;
+static short **zpcm_buffers = 0;
+static short *zpcm_samples = 0;
+
+void alsa_close()
+{
+#ifdef __cplusplus
+ if( zpcm_buffers != 0 ) { delete [] zpcm_buffers; zpcm_buffers = 0; }
+ if( zpcm_areas != 0 ) { delete [] zpcm_areas; zpcm_areas = 0; }
+ if( zpcm_samples != 0 ) { delete [] zpcm_samples; zpcm_samples = 0; }
+#else
+ if( zpcm_buffers != 0 ) { free(zpcm_buffers); zpcm_buffers = 0; }
+ if( zpcm_areas != 0 ) { free(zpcm_areas); zpcm_areas = 0; }
+ if( zpcm_samples != 0 ) { free(zpcm_samples); zpcm_samples = 0; }
+#endif
+ if( zpcm != 0 ) { snd_pcm_close(zpcm); zpcm = 0; }
+ pthread_mutex_destroy(&zpcm_lock);
+}
+
+void alsa_open(int chs,int rate)
+{
+ int ich, bits, byts, dir, ret;
+ pthread_mutex_init(&zpcm_lock,0);
+ snd_pcm_format_t fmt = SND_PCM_FORMAT_S16;
+ snd_pcm_hw_params_t *phw;
+ snd_pcm_sw_params_t *psw;
+ snd_pcm_hw_params_alloca(&phw);
+ snd_pcm_sw_params_alloca(&psw);
+
+ zpcm = 0;
+ zpcm_total_samples = 0;
+ zpcm_play_time = 0.;
+ ret = snd_pcm_open(&zpcm, zpcm_device,
+ SND_PCM_STREAM_PLAYBACK, 0 /* SND_PCM_NONBLOCK */);
+ if( ret >= 0 )
+ ret = snd_pcm_hw_params_any(zpcm, phw);
+ if( ret >= 0 )
+ ret = snd_pcm_hw_params_set_rate_resample(zpcm, phw, 1);
+ if( ret >= 0 )
+ ret = snd_pcm_hw_params_set_access(zpcm, phw,
+ SND_PCM_ACCESS_RW_NONINTERLEAVED);
+ if( ret >= 0 )
+ ret = snd_pcm_hw_params_set_format(zpcm, phw, fmt);
+ if( ret >= 0 ) {
+ zpcm_channels = chs;
+ ret = snd_pcm_hw_params_set_channels(zpcm, phw, chs);
+ }
+ if( ret >= 0 ) {
+ zpcm_rate = rate;
+ ret = snd_pcm_hw_params_set_rate_near(zpcm, phw, &zpcm_rate, 0);
+ if( (int)zpcm_rate != rate )
+ printf("nearest audio_rate for %d is %u\n",rate,zpcm_rate);
+ }
+ if( ret >= 0 )
+ ret = snd_pcm_hw_params_set_buffer_time_near(zpcm, phw,
+ &zpcm_bfr_time_us, &dir);
+ if( ret >= 0 )
+ ret = snd_pcm_hw_params_get_buffer_size(phw, &zpcm_ufrm_size);
+ if( ret >= 0 ) {
+ zpcm_sbfr_size = zpcm_ufrm_size;
+ ret = snd_pcm_hw_params_set_period_time_near(zpcm, phw,
+ &zpcm_per_time_us, &dir);
+ }
+ if( ret >= 0 )
+ ret = snd_pcm_hw_params_get_period_size(phw, &zpcm_ufrm_size, &dir);
+ if( ret >= 0 ) {
+ zpcm_sper_size = zpcm_ufrm_size;
+ ret = snd_pcm_hw_params(zpcm, phw);
+ }
+ if( ret >= 0 )
+ ret = snd_pcm_sw_params_current(zpcm, psw);
+ if( ret >= 0 )
+ ret = snd_pcm_sw_params_set_start_threshold(zpcm, psw,
+ (zpcm_sbfr_size / zpcm_sper_size) * zpcm_sper_size);
+ if( ret >= 0 )
+ ret = snd_pcm_sw_params_set_avail_min(zpcm, psw, zpcm_sper_size);
+ if( ret >= 0 )
+ ret = snd_pcm_sw_params(zpcm, psw);
+ /* snd_pcm_dump(zpcm, stdout); */
+
+ if( ret >= 0 ) {
+#ifdef __cplusplus
+ zpcm_areas = new snd_pcm_channel_area_t[chs];
+ byts = snd_pcm_format_physical_width(fmt) / 8;
+ zpcm_samples = new short[zpcm_sper_size * chs * byts/2];
+ zpcm_buffers = new short *[chs];
+#else
+ zpcm_areas = calloc(chs, sizeof(snd_pcm_channel_area_t));
+ bits = snd_pcm_format_physical_width(fmt);
+ byts = bits / 8;
+ zpcm_samples = malloc(zpcm_sper_size * chs * byts);
+ zpcm_buffers = malloc(chs * sizeof(short*));
+#endif
+ if( zpcm_samples ) {
+ for( ich = 0; ich < chs; ++ich ) {
+ zpcm_areas[ich].addr = zpcm_samples;
+ zpcm_areas[ich].first = ich * zpcm_sper_size * bits;
+ zpcm_areas[ich].step = bits;
+ zpcm_buffers[ich] = zpcm_samples + ich*zpcm_sper_size;
+ }
+ }
+ else {
+ fprintf(stderr,"alsa sample buffer allocation failure.\n");
+ ret = -999;
+ }
+ }
+ if( ret < 0 ) {
+ if( ret > -999 )
+ printf("audio error: %s\n", snd_strerror(ret));
+ alsa_close();
+ }
+}
+
+short *alsa_bfr(int ch)
+{
+ return zpcm_buffers[ch];
+}
+
+int alsa_bfrsz()
+{
+ return zpcm_sper_size;
+}
+
+int alsa_recovery(int ret)
+{
+ printf("alsa recovery\n");
+ switch( ret ) {
+ case -ESTRPIPE:
+ /* wait until the suspend flag is released, then fall through */
+ while( (ret=snd_pcm_resume(zpcm)) == -EAGAIN ) usleep(100000);
+ case -EPIPE:
+ ret = snd_pcm_prepare(zpcm);
+ if( ret < 0 )
+ printf("underrun, prepare failed: %s\n", snd_strerror(ret));
+ break;
+ default:
+ printf("unhandled error: %s\n",snd_strerror(ret));
+ break;
+ }
+ return ret;
+}
+
+int alsa_write(int length)
+{
+ struct timeval tv;
+ int i, ret, count, retry;
+ snd_pcm_sframes_t sample_delay;
+ double play_time, time;
+#ifdef __cplusplus
+ short *bfrs[zpcm_channels];
+#else
+ short **bfrs = alloca(zpcm_channels*sizeof(short *));
+#endif
+ retry = 3;
+ ret = count = 0;
+ for( i=0; i<zpcm_channels; ++i ) bfrs[i] = zpcm_buffers[i];
+
+ while( count < length ) {
+ ret = snd_pcm_writen(zpcm,(void **)bfrs, length-count);
+ if( ret == -EAGAIN ) continue;
+ if ( ret < 0 ) {
+ if( --retry < 0 ) return ret;
+ alsa_recovery(ret);
+ ret = 0;
+ continue;
+ }
+ for( i=0; i<zpcm_channels; ++i ) bfrs[i] += ret;
+ count += ret;
+ }
+ pthread_mutex_lock(&zpcm_lock);
+ zpcm_total_samples += count;
+ snd_pcm_delay(zpcm,&sample_delay);
+ if( sample_delay > zpcm_total_samples )
+ sample_delay = zpcm_total_samples;
+ gettimeofday(&tv,NULL);
+ time = tv.tv_sec + tv.tv_usec/1000000.0;
+ play_time = (zpcm_total_samples - sample_delay) / (double)zpcm_rate;
+ zpcm_play_time = time - play_time;
+ pthread_mutex_unlock(&zpcm_lock);
+ return ret < 0 ? ret : 0;
+}
+
+double alsa_time()
+{
+ double time, play_time;
+ struct timeval tv;
+ pthread_mutex_lock(&zpcm_lock);
+ gettimeofday(&tv,NULL);
+ time = tv.tv_sec + tv.tv_usec/1000000.0;
+ play_time = time - zpcm_play_time;
+ pthread_mutex_unlock(&zpcm_lock);
+ return play_time;
+}
+
+#endif
+
+int done = 0;
+
+void sigint(int n)
+{
+ done = 1;
+}
+
+
+void dst_exit(GtkWidget *widget, gpointer data)
+{
+ exit(0);
+}
+
+double tstart;
+
+double the_time()
+{
+ double time;
+ struct timeval tv;
+ gettimeofday(&tv,NULL);
+ time = tv.tv_sec + tv.tv_usec/1000000.0;
+ if( tstart < 0. ) tstart = time;
+ return time - tstart;
+}
+
+
+void mpeg3_stats(zmpeg3_t *zsrc)
+{
+ int astream, vstream;
+ int has_audio, total_astreams, audio_channels, sample_rate;
+ int has_video, total_vstreams, width, height, colormodel;
+ long audio_samples, video_frames;
+ float frame_rate;
+
+ has_audio = mpeg3_has_audio(zsrc);
+ printf(" has_audio = %d\n", has_audio);
+ total_astreams = mpeg3_total_astreams(zsrc);
+ printf(" total_astreams = %d\n", total_astreams);
+ for( astream=0; astream<total_astreams; ++astream ) {
+ audio_channels = mpeg3_audio_channels(zsrc, astream);
+ printf(" audio_channels = %d\n", audio_channels);
+ sample_rate = mpeg3_sample_rate(zsrc, astream);
+ printf(" sample_rate = %d\n", sample_rate);
+ audio_samples = mpeg3_audio_samples(zsrc, astream);
+ printf(" audio_samples = %ld\n", audio_samples);
+ }
+ printf("\n");
+ has_video = mpeg3_has_video(zsrc);
+ printf(" has_video = %d\n", has_video);
+ total_vstreams = mpeg3_total_vstreams(zsrc);
+ printf(" total_vstreams = %d\n", total_vstreams);
+ for( vstream=0; vstream<total_vstreams; ++vstream ) {
+ width = mpeg3_video_width(zsrc, vstream);
+ printf(" video_width = %d\n", width);
+ height = mpeg3_video_height(zsrc, vstream);
+ printf(" video_height = %d\n", height);
+ frame_rate = mpeg3_frame_rate(zsrc, vstream);
+ printf(" frame_rate = %f\n", frame_rate);
+ video_frames = mpeg3_video_frames(zsrc, vstream);
+ printf(" video_frames = %ld\n", video_frames);
+ colormodel = mpeg3_colormodel(zsrc, vstream);
+ printf(" colormodel = %d\n", colormodel);
+ }
+}
+
+#ifdef VIDEO
+double vstart;
+double last_vtime;
+
+double video_time(zmpeg3_t *zsrc,int stream)
+{
+#ifdef __cplusplus
+ double vtime = mpeg3_get_video_time(zsrc,stream);
+#else
+ double vtime = mpeg3_get_time(zsrc);
+#endif
+ double vnow = vtime;
+ if( vstart == 0. ) vstart = vnow;
+ if( vtime < last_vtime )
+ vstart -= last_vtime;
+ last_vtime = vtime;
+ return vnow - vstart + nudge;
+}
+
+pthread_t the_video;
+
+void *video_thread(void *the_zsrc)
+{
+ GtkWidget *window;
+ GtkWidget *panel_hbox;
+ GtkWidget *image;
+ GdkPixbuf *pbuf0, *pbuf1;
+ GdkImage *img0, *img1;
+ GdkVisual *visual;
+ double delay;
+ float frame_rate, frame_delay;
+ unsigned char **rows, **row0, **row1, *cap, *cap0, *cap1;
+ int ret, row, frame, dropped, more_data;
+ int width, height, owidth, oheight;
+ const int frame_drop = 1;
+ zmpeg3_t *zsrc = (zmpeg3_t *)the_zsrc;
+
+ frame_rate = mpeg3_frame_rate(zsrc, 0);
+ frame_delay = 2.0 / frame_rate;
+ height = mpeg3_video_height(zsrc, 0);
+ width = mpeg3_video_width(zsrc, 0);
+ //oheight = 2*height / 3;
+ //owidth = 2*width / 3;
+ //oheight = 1050-96;
+ //owidth = 1680-64;
+ //oheight = height;
+ //owidth = width;
+ oheight = 720;
+ owidth = 1280;
+
+ visual = gdk_visual_get_system();
+ /* toplevel window */
+ window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+ gtk_signal_connect(GTK_OBJECT(window),"destroy",
+ GTK_SIGNAL_FUNC(dst_exit),NULL);
+ gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_NONE);
+ /* try for shared image bfr, only seems to work with gtk_rgb */
+ img0 = gdk_image_new(GDK_IMAGE_SHARED, visual, owidth, oheight);
+ pbuf0 = gdk_pixbuf_new_from_data((const guchar *)img0->mem,
+ GDK_COLORSPACE_RGB,RGBA,8,owidth,oheight,owidth*BPP,NULL,NULL);
+ cap0 = gdk_pixbuf_get_pixels(pbuf0);
+ image = gtk_image_new_from_pixbuf(pbuf0);
+ /* double buffered */
+ img1 = gdk_image_new(GDK_IMAGE_SHARED, visual, owidth, oheight);
+ pbuf1 = gdk_pixbuf_new_from_data((const guchar *)img1->mem,
+ GDK_COLORSPACE_RGB,RGBA,8,owidth,oheight,owidth*BPP,NULL,NULL);
+ cap1 = gdk_pixbuf_get_pixels(pbuf1);
+
+ panel_hbox = gtk_hbox_new(FALSE,0);
+ gtk_container_add(GTK_CONTAINER(window), panel_hbox);
+ /* pack image into panel */
+ gtk_box_pack_start(GTK_BOX(panel_hbox), image, TRUE, TRUE, 0);
+
+
+#ifdef __cplusplus
+ row0 = new unsigned char *[oheight];
+ row1 = new unsigned char *[oheight];
+ int cmdl = COLOR_MODEL;
+#else
+ row0 = malloc(oheight*sizeof(unsigned char *));
+ row1 = malloc(oheight*sizeof(unsigned char *));
+ int cmdl = COLOR_MODEL;
+#endif
+ for( row=0; row<oheight; ++row ) {
+ row0[row] = cap0 + row*owidth*BPP;
+ row1[row] = cap1 + row*owidth*BPP;
+ }
+
+ gtk_widget_show_all(window);
+ cap = cap0;
+ rows = row0;
+ frame = dropped = 0;
+ vstart = last_vtime = 0.;
+ more_data = 1;
+
+ while( done == 0 && more_data ) {
+ if( !gtk_events_pending() ) {
+ more_data = 0;
+// delay = (frame+dropped)/frame_rate - alsa_time();
+// delay = the_time() - video_time(zsrc,0);
+ if( frame_drop ) {
+ if( -delay >= frame_delay ) {
+ int nframes = (long)ceil(-delay/frame_rate);
+ if( nframes > 2 ) nframes = 2;
+ mpeg3_drop_frames(zsrc,nframes,0);
+ dropped += nframes;
+ }
+ }
+ //if( delay > 0 )
+ // usleep((int)(delay*1000000.0));
+ ret = mpeg3_read_frame(zsrc, rows, 0, 0, width, height,
+ owidth, oheight, cmdl, 0);
+ //printf("%d %ld\n",frame,zsrc->vtrack[0]->demuxer->titles[0]->fs->current_byte);
+ if( verbose )
+ printf("read_video(stream=%d, frame=%d) = %d\n", 0, frame, ret);
+ //if( frame > 500 && frame < 800 ) {
+ // mpeg3_previous_frame(zsrc,0);
+ // mpeg3_previous_frame(zsrc,0);
+ //}
+ GdkGC *blk = image->style->black_gc;
+ gdk_draw_rgb_image(image->window,blk, 0,0,owidth,oheight,
+ GDK_RGB_DITHER_NONE,cap,owidth*BPP);
+#if 0
+#if 0
+ { static FILE *fp = 0;
+ int sz = owidth*oheight*BPP;
+ if( fp == 0 ) fp = fopen("/tmp/dat.raw","w");
+ fwrite(cap,1,sz,fp);
+ }
+#else
+ { static FILE *fp = 0;
+ int z, sz = owidth*oheight*BPP;
+ uint8_t zbfr[sz];
+ if( fp == 0 ) fp = fopen("/tmp/dat.raw","r");
+ fread(zbfr,1,sz,fp);
+ for( z=0; z<sz && abs(zbfr[z]-cap[z])<=1; ++z );
+ //for( z=0; z<sz && zbfr[z]==cap[z]; ++z );
+ if( z < sz )
+ printf("bug %d\n",z);
+ }
+#endif
+ if( frame > 250 ) exit(0);
+#endif
+ *(unsigned long *)&cap ^= ((unsigned long)cap0 ^ (unsigned long)cap1);
+ *(unsigned long *)&rows ^= ((unsigned long)row0 ^ (unsigned long)row1);
+ //printf(" %d/%d %f %f %f\n",frame,dropped,(frame+dropped)/frame_rate,
+ // video_time(zsrc,0),mpeg3_get_video_time(zsrc,0));
+ ++frame;
+ more_data |= !mpeg3_end_of_video(zsrc,0);
+ }
+ else
+ gtk_main_iteration();
+ }
+
+ return (void*)0;
+}
+
+#endif
+
+#ifdef AUDIO
+double astart;
+
+double audio_time(zmpeg3_t *zsrc, int stream)
+{
+#ifdef __cplusplus
+ double anow = mpeg3_get_audio_time(zsrc,stream);
+#else
+ double anow = mpeg3_get_time(zsrc);
+#endif
+ if( astart < 0. ) astart = anow;
+ return anow - astart;
+}
+
+pthread_t the_audio;
+
+void *audio_thread(void *the_zsrc)
+{
+ double delay;
+ int audio_channels, sample_rate, more_data;
+ zmpeg3_t *zsrc = (zmpeg3_t *)the_zsrc;
+ int stream = 0;
+
+ audio_channels = mpeg3_audio_channels(zsrc, stream);
+ sample_rate = mpeg3_sample_rate(zsrc, stream);
+ alsa_open(audio_channels,sample_rate);
+ astart = -1.;
+ more_data = 1;
+
+ while( done == 0 && more_data ) {
+ more_data = 0;
+ int ich;
+ int n = alsa_bfrsz();
+ for( ich=0; ich<audio_channels; ++ich) {
+ short *bfr = alsa_bfr(ich);
+ int ret = ich == 0 ?
+ mpeg3_read_audio(zsrc, 0, bfr, ich, n, stream) :
+ mpeg3_reread_audio(zsrc, 0, bfr, ich, n, stream);
+ if( verbose )
+ printf("read_audio(stream=%d,channel=%d) = %d\n", stream, ich, ret);
+ }
+
+ alsa_write(n);
+ delay = audio_time(zsrc,stream) - the_time();
+ if( (delay-ahead) > 0. )
+ usleep((int)(delay*1000000.0/2.));
+ more_data |= !mpeg3_end_of_audio(zsrc,0);
+ }
+
+ alsa_close();
+ return (void*)0;
+}
+
+#endif
+
+
+int main(int ac, char **av)
+{
+ int ret;
+ setbuf(stdout,NULL);
+ tstart = -1.;
+
+#ifdef VIDEO
+ gtk_set_locale();
+ gtk_init(&ac, &av);
+#endif
+
+ //zmpeg3_t* zsrc = mpeg3_open("/tmp/dat",&ret);
+ //zmpeg3_t* zsrc = mpeg3_zopen(0,"/tmp/dat",&ret,ZIO_UNBUFFERED+ZIO_SINGLE_ACCESS+ZIO_SEQUENTIAL);
+ //zmpeg3_t* zsrc = mpeg3_open("/tmp/dat.toc",&ret);
+ //zmpeg3_t* zsrc = mpeg3_open("/root/LimeWire/Shared/Britney Spears - Pepsi Commercial with Bob Dole.mpeg",&ret);
+ //zmpeg3_t* zsrc = mpeg3_open("/tmp/dat.mp3",&ret);
+ //zmpeg3_t* zsrc = mpeg3_open("/dvd/VIDEO_TS/VTS_01_0.IFO",&ret);
+ //zmpeg3_t* zsrc = mpeg3_open("/home/dat2.vts",&ret);
+ //zmpeg3_t* zsrc = mpeg3_open("/dvd/BDMV/STREAM/00000.m2ts",&ret);
+ zmpeg3_t* zsrc = mpeg3_open(av[1],&ret);
+ ysrc = zsrc;
+ printf(" ret = %d\n",ret);
+ if( ret != 0 ) exit(1);
+ mpeg3_stats(zsrc);
+
+#ifdef AUDIO
+#ifdef __cplusplus
+ zmpeg3_t* zsrc1 = zsrc;
+#else
+ zmpeg3_t* zsrc1 = mpeg3_open_copy(zsrc->fs->path, zsrc, &ret);
+#endif
+#endif
+
+ mpeg3_set_cpus(zsrc,3);
+ mpeg3_seek_byte(zsrc,0);
+ mpeg3_show_subtitle(zsrc, 0);
+ signal(SIGINT,sigint);
+
+#ifdef AUDIO
+ pthread_create(&the_audio, NULL, audio_thread, (void*)zsrc1);
+#endif
+#ifdef VIDEO
+ pthread_create(&the_video, NULL, video_thread, (void*)zsrc);
+#endif
+#ifdef VIDEO
+ pthread_join(the_video,NULL);
+#endif
+#ifdef AUDIO
+ pthread_join(the_audio,NULL);
+#endif
+
+ mpeg3_close(zsrc);
+ return 0;
+}
+
projects / goodguy / history.git / blobdiff