static void test_media_preparsed(const char** argv, int argc)
{
// We use this image file because "empty.voc" has no track.
const char * file = SRCDIR"/samples/image.jpg";
log ("Testing set_media\n");
libvlc_instance_t *vlc = libvlc_new (argc, argv);
assert (vlc != NULL);
libvlc_media_t *media = libvlc_media_new_path (vlc, file);
assert (media != NULL);
vlc_sem_t sem;
vlc_sem_init (&sem, 0);
// Check to see if we are properly receiving the event.
libvlc_event_manager_t *em = libvlc_media_event_manager (media);
libvlc_event_attach (em, libvlc_MediaParsedChanged, preparsed_changed, &sem);
// Parse the media. This is synchronous.
libvlc_media_parse_async(media);
// Wait for preparsed event
vlc_sem_wait (&sem);
vlc_sem_destroy (&sem);
// We are good, now check Elementary Stream info.
libvlc_media_track_t **tracks;
unsigned nb_tracks = libvlc_media_tracks_get (media, &tracks);
assert (nb_tracks == 1);
assert (tracks[0]->i_type == libvlc_track_video);
libvlc_media_tracks_release (tracks, nb_tracks);
libvlc_media_release (media);
libvlc_release (vlc);
}
jobjectArray read_track_info_internal(JNIEnv *env, jobject thiz, libvlc_media_t* p_m)
{
/* get java class */
jclass cls = (*env)->FindClass( env, "org/videolan/libvlc/TrackInfo" );
if ( !cls )
{
LOGE("Failed to load class (org/videolan/libvlc/TrackInfo)" );
return NULL;
}
/* get java class contructor */
jmethodID clsCtor = (*env)->GetMethodID( env, cls, "<init>", "()V" );
if ( !clsCtor )
{
LOGE("Failed to find class constructor (org/videolan/libvlc/TrackInfo)" );
return NULL;
}
/* Get the tracks information of the media. */
libvlc_media_track_t **p_tracks;
int i_nbTracks = libvlc_media_tracks_get(p_m, &p_tracks);
jobjectArray array = (*env)->NewObjectArray(env, i_nbTracks + 1, cls, NULL);
unsigned i;
if (array != NULL)
{
for (i = 0; i <= i_nbTracks; ++i)
{
jobject item = (*env)->NewObject(env, cls, clsCtor);
if (item == NULL)
continue;
(*env)->SetObjectArrayElement(env, array, i, item);
// use last track for metadata
if (i == i_nbTracks)
{
setInt(env, item, "Type", 3 /* TYPE_META */);
setLong(env, item, "Length", libvlc_media_get_duration(p_m));
setString(env, item, "Title", libvlc_media_get_meta(p_m, libvlc_meta_Title));
setString(env, item, "Artist", libvlc_media_get_meta(p_m, libvlc_meta_Artist));
setString(env, item, "Album", libvlc_media_get_meta(p_m, libvlc_meta_Album));
setString(env, item, "Genre", libvlc_media_get_meta(p_m, libvlc_meta_Genre));
setString(env, item, "ArtworkURL", libvlc_media_get_meta(p_m, libvlc_meta_ArtworkURL));
continue;
}
setInt(env, item, "Id", p_tracks[i]->i_id);
setInt(env, item, "Type", p_tracks[i]->i_type);
setString(env, item, "Codec", (const char*)vlc_fourcc_GetDescription(0,p_tracks[i]->i_codec));
setString(env, item, "Language", p_tracks[i]->psz_language);
setInt(env, item, "Bitrate", p_tracks[i]->i_bitrate);
if (p_tracks[i]->i_type == libvlc_track_video)
{
setInt(env, item, "Height", p_tracks[i]->video->i_height);
setInt(env, item, "Width", p_tracks[i]->video->i_width);
setFloat(env, item, "Framerate", (float)p_tracks[i]->video->i_frame_rate_num / p_tracks[i]->video->i_frame_rate_den);
}
if (p_tracks[i]->i_type == libvlc_track_audio)
{
setInt(env, item, "Channels", p_tracks[i]->audio->i_channels);
setInt(env, item, "Samplerate", p_tracks[i]->audio->i_rate);
}
}
}
libvlc_media_tracks_release(p_tracks, i_nbTracks);
return array;
}
/**
* Thumbnailer main function.
* return null if the thumbail generation failed.
**/
jbyteArray
Java_org_videolan_libvlc_util_VLCUtil_nativeGetThumbnail(JNIEnv *env,
jobject thiz,
jobject jmedia,
const jint frameWidth,
const jint frameHeight)
{
vlcjni_object *p_obj = VLCJniObject_getInstance(env, jmedia);
jbyteArray byteArray = NULL;
/* Create the thumbnailer data structure */
thumbnailer_sys_t *sys = calloc(1, sizeof(thumbnailer_sys_t));
if (sys == NULL)
{
LOGE("Could not create the thumbnailer data structure!");
goto enomem;
}
/* Initialize the barrier. */
pthread_mutex_init(&sys->doneMutex, NULL);
pthread_cond_init(&sys->doneCondVar, NULL);
/* Create a media player playing environment */
libvlc_media_player_t *mp = libvlc_media_player_new_from_media(p_obj->u.p_m);
libvlc_media_player_set_video_title_display(mp, libvlc_position_disable, 0);
/* Get the size of the video with the tracks information of the media. */
libvlc_media_track_t **tracks;
libvlc_media_parse(p_obj->u.p_m);
int nbTracks = libvlc_media_tracks_get(p_obj->u.p_m, &tracks);
/* Parse the results */
unsigned videoWidth = 0, videoHeight = 0;
bool hasVideoTrack = false;
for (unsigned i = 0; i < nbTracks; ++i)
if (tracks[i]->i_type == libvlc_track_video)
{
videoWidth = tracks[i]->video->i_width;
videoHeight = tracks[i]->video->i_height;
hasVideoTrack = true;
break;
}
libvlc_media_tracks_release(tracks, nbTracks);
/* Abort if we have not found a video track. */
if (!hasVideoTrack)
{
LOGE("Could not find any video track in this file.\n");
goto end;
}
LOGD("Video dimensions: %ix%i.\n", videoWidth, videoHeight );
/* VLC could not tell us the size */
if( videoWidth == 0 || videoHeight == 0 )
{
LOGE("Could not find the video dimensions.\n");
goto end;
}
if( videoWidth < THUMBNAIL_MIN_WIDTH || videoHeight < THUMBNAIL_MIN_HEIGHT
|| videoWidth > THUMBNAIL_MAX_WIDTH || videoHeight > THUMBNAIL_MAX_HEIGHT )
{
LOGE("Wrong video dimensions.\n");
goto end;
}
/* Compute the size parameters of the frame to generate. */
unsigned thumbWidth = frameWidth;
unsigned thumbHeight = frameHeight;
const float inputAR = (float)videoWidth / videoHeight;
const float screenAR = (float)frameWidth / frameHeight;
/* Most of the cases, video is wider than tall */
if (screenAR < inputAR)
{
thumbHeight = (float)frameWidth / inputAR + 1;
sys->blackBorders = ( (frameHeight - thumbHeight) / 2 ) * frameWidth;
}
else
{
LOGD("Weird aspect Ratio.\n");
thumbWidth = (float)frameHeight * inputAR;
sys->blackBorders = (frameWidth - thumbWidth) / 2;
}
sys->thumbPitch = thumbWidth * PIXEL_SIZE;
sys->thumbHeight = thumbHeight;
sys->frameWidth = frameWidth;
/* Allocate the memory to store the frames. */
size_t thumbSize = sys->thumbPitch * (sys->thumbHeight+1);
sys->thumbData = malloc(thumbSize);
if (sys->thumbData == NULL)
{
LOGE("Could not allocate the memory to store the frame!");
goto end;
}
/* Allocate the memory to store the thumbnail. */
unsigned frameSize = frameWidth * frameHeight * PIXEL_SIZE;
sys->frameData = calloc(frameSize, 1);
if (sys->frameData == NULL)
{
LOGE("Could not allocate the memory to store the thumbnail!");
goto end;
}
/* Set the video format and the callbacks. */
libvlc_video_set_format(mp, "RGBA", thumbWidth, thumbHeight, sys->thumbPitch);
libvlc_video_set_callbacks(mp, thumbnailer_lock, thumbnailer_unlock,
NULL, (void*)sys);
sys->state = THUMB_SEEKING;
/* Play the media. */
libvlc_media_player_play(mp);
libvlc_media_player_set_position(mp, THUMBNAIL_POSITION);
const int wait_time = 50000;
const int max_attempts = 100;
for (int i = 0; i < max_attempts; ++i) {
if (libvlc_media_player_is_playing(mp) && libvlc_media_player_get_position(mp) >= THUMBNAIL_POSITION)
break;
usleep(wait_time);
}
/* Wait for the thumbnail to be generated. */
pthread_mutex_lock(&sys->doneMutex);
sys->state = THUMB_SEEKED;
struct timespec deadline;
clock_gettime(CLOCK_REALTIME, &deadline);
deadline.tv_sec += 10; /* amount of seconds before we abort thumbnailer */
do {
int ret = pthread_cond_timedwait(&sys->doneCondVar, &sys->doneMutex, &deadline);
if (ret == ETIMEDOUT)
break;
} while (sys->state != THUMB_DONE);
pthread_mutex_unlock(&sys->doneMutex);
/* Stop and release the media player. */
libvlc_media_player_stop(mp);
libvlc_media_player_release(mp);
if (sys->state == THUMB_DONE) {
/* Create the Java byte array to return the create thumbnail. */
byteArray = (*env)->NewByteArray(env, frameSize);
if (byteArray == NULL)
{
LOGE("Could not allocate the Java byte array to store the frame!");
goto end;
}
(*env)->SetByteArrayRegion(env, byteArray, 0, frameSize,
(jbyte *)sys->frameData);
}
end:
pthread_mutex_destroy(&sys->doneMutex);
pthread_cond_destroy(&sys->doneCondVar);
free(sys->frameData);
free(sys->thumbData);
free(sys);
enomem:
return byteArray;
}
unsigned
libvlc_media_tracks_get( libvlc_media_t *p_md, libvlc_media_track_t *** pp_es )
{
assert( p_md );
input_item_t *p_input_item = p_md->p_input_item;
vlc_mutex_lock( &p_input_item->lock );
const int i_es = p_input_item->i_es;
*pp_es = (i_es > 0) ? calloc( i_es, sizeof(**pp_es) ) : NULL;
if( !*pp_es ) /* no ES, or OOM */
{
vlc_mutex_unlock( &p_input_item->lock );
return 0;
}
/* Fill array */
for( int i = 0; i < i_es; i++ )
{
libvlc_media_track_t *p_mes = calloc( 1, sizeof(*p_mes) );
if ( p_mes )
{
p_mes->audio = malloc( __MAX(__MAX(sizeof(*p_mes->audio),
sizeof(*p_mes->video)),
sizeof(*p_mes->subtitle)) );
}
if ( !p_mes || !p_mes->audio )
{
libvlc_media_tracks_release( *pp_es, i_es );
*pp_es = NULL;
free( p_mes );
vlc_mutex_unlock( &p_input_item->lock );
return 0;
}
(*pp_es)[i] = p_mes;
const es_format_t *p_es = p_input_item->es[i];
p_mes->i_codec = p_es->i_codec;
p_mes->i_original_fourcc = p_es->i_original_fourcc;
p_mes->i_id = p_es->i_id;
p_mes->i_profile = p_es->i_profile;
p_mes->i_level = p_es->i_level;
p_mes->i_bitrate = p_es->i_bitrate;
p_mes->psz_language = p_es->psz_language != NULL ? strdup(p_es->psz_language) : NULL;
p_mes->psz_description = p_es->psz_description != NULL ? strdup(p_es->psz_description) : NULL;
switch(p_es->i_cat)
{
case UNKNOWN_ES:
default:
p_mes->i_type = libvlc_track_unknown;
break;
case VIDEO_ES:
p_mes->i_type = libvlc_track_video;
p_mes->video->i_height = p_es->video.i_height;
p_mes->video->i_width = p_es->video.i_width;
p_mes->video->i_sar_num = p_es->video.i_sar_num;
p_mes->video->i_sar_den = p_es->video.i_sar_den;
p_mes->video->i_frame_rate_num = p_es->video.i_frame_rate;
p_mes->video->i_frame_rate_den = p_es->video.i_frame_rate_base;
break;
case AUDIO_ES:
p_mes->i_type = libvlc_track_audio;
p_mes->audio->i_channels = p_es->audio.i_channels;
p_mes->audio->i_rate = p_es->audio.i_rate;
break;
case SPU_ES:
p_mes->i_type = libvlc_track_text;
p_mes->subtitle->psz_encoding = p_es->subs.psz_encoding != NULL ?
strdup(p_es->subs.psz_encoding) : NULL;
break;
}
}
vlc_mutex_unlock( &p_input_item->lock );
return i_es;
}
/**
* Thumbnailer main function.
* return null if the thumbail generation failed.
**/
jbyteArray Java_org_videolan_libvlc_LibVLC_getThumbnail(JNIEnv *env, jobject thiz,
jlong instance, jstring filePath,
const jint frameWidth, const jint frameHeight)
{
libvlc_instance_t *libvlc = (libvlc_instance_t *)(intptr_t)instance;
jbyteArray byteArray = NULL;
/* Create the thumbnailer data structure */
thumbnailer_sys_t *sys = calloc(1, sizeof(thumbnailer_sys_t));
if (sys == NULL)
{
LOGE("Could not create the thumbnailer data structure!");
return NULL;
}
/* Initialize the barrier. */
pthread_mutex_init(&sys->doneMutex, NULL);
pthread_cond_init(&sys->doneCondVar, NULL);
/* Create a media player playing environment */
libvlc_media_player_t *mp = libvlc_media_player_new(libvlc);
libvlc_media_t *m = new_media(instance, env, thiz, filePath, true, false);
if (m == NULL)
{
LOGE("Could not create the media to play!");
goto end;
}
/* Fast and no options */
libvlc_media_add_option( m, ":no-audio" );
libvlc_media_add_option( m, ":no-spu" );
libvlc_media_add_option( m, ":no-osd" );
libvlc_media_player_set_media(mp, m);
/* Get the size of the video with the tracks information of the media. */
libvlc_media_track_t **tracks;
libvlc_media_parse(m);
int nbTracks = libvlc_media_tracks_get(m, &tracks);
libvlc_media_release(m);
/* Parse the results */
unsigned videoWidth = 0, videoHeight = 0;
bool hasVideoTrack = false;
for (unsigned i = 0; i < nbTracks; ++i)
if (tracks[i]->i_type == libvlc_track_video)
{
videoWidth = tracks[i]->video->i_width;
videoHeight = tracks[i]->video->i_height;
hasVideoTrack = true;
break;
}
libvlc_media_tracks_release(tracks, nbTracks);
/* Abort if we have not found a video track. */
if (!hasVideoTrack)
{
LOGE("Could not find any video track in this file.\n");
goto end;
}
LOGD("Video dimensions: %ix%i.\n", videoWidth, videoHeight );
/* VLC could not tell us the size */
if( videoWidth == 0 || videoHeight == 0 )
{
LOGE("Could not find the video dimensions.\n");
goto end;
}
if( videoWidth < 32 || videoHeight < 32 || videoWidth > 2048 || videoWidth > 2048 )
{
LOGE("Wrong video dimensions.\n");
goto end;
}
/* Compute the size parameters of the frame to generate. */
unsigned thumbWidth = frameWidth;
unsigned thumbHeight = frameHeight;
const float inputAR = (float)videoWidth / videoHeight;
const float screenAR = (float)frameWidth / frameHeight;
/* Most of the cases, video is wider than tall */
if (screenAR < inputAR)
{
thumbHeight = (float)frameWidth / inputAR + 1;
sys->blackBorders = ( (frameHeight - thumbHeight) / 2 ) * frameWidth;
}
else
{
LOGD("Weird aspect Ratio.\n");
thumbWidth = (float)frameHeight * inputAR;
sys->blackBorders = (frameWidth - thumbWidth) / 2;
}
sys->thumbPitch = thumbWidth * PIXEL_SIZE;
sys->thumbHeight = thumbHeight;
sys->frameWidth = frameWidth;
/* Allocate the memory to store the frames. */
size_t thumbSize = sys->thumbPitch * (sys->thumbHeight+1);
sys->thumbData = malloc(thumbSize);
if (sys->thumbData == NULL)
{
LOGE("Could not allocate the memory to store the frame!");
goto end;
}
/* Allocate the memory to store the thumbnail. */
unsigned frameSize = frameWidth * frameHeight * PIXEL_SIZE;
sys->frameData = calloc(frameSize, 1);
if (sys->frameData == NULL)
{
LOGE("Could not allocate the memory to store the thumbnail!");
goto end;
}
/* Set the video format and the callbacks. */
libvlc_video_set_format(mp, "RGBA", thumbWidth, thumbHeight, sys->thumbPitch);
libvlc_video_set_callbacks(mp, thumbnailer_lock, thumbnailer_unlock,
NULL, (void*)sys);
sys->state = THUMB_SEEKING;
/* Play the media. */
libvlc_media_player_play(mp);
libvlc_media_player_set_position(mp, THUMBNAIL_POSITION);
int loops = 100;
for (;;) {
float pos = libvlc_media_player_get_position(mp);
if (pos > THUMBNAIL_POSITION || !loops--)
break;
usleep(50000);
}
/* Wait for the thumbnail to be generated. */
pthread_mutex_lock(&sys->doneMutex);
sys->state = THUMB_SEEKED;
struct timespec deadline;
clock_gettime(CLOCK_REALTIME, &deadline);
deadline.tv_sec += 10; /* amount of seconds before we abort thumbnailer */
do {
int ret = pthread_cond_timedwait(&sys->doneCondVar, &sys->doneMutex, &deadline);
if (ret == ETIMEDOUT)
break;
} while (sys->state != THUMB_DONE);
pthread_mutex_unlock(&sys->doneMutex);
/* Stop and release the media player. */
libvlc_media_player_stop(mp);
libvlc_media_player_release(mp);
if (sys->state == THUMB_DONE) {
/* Create the Java byte array to return the create thumbnail. */
byteArray = (*env)->NewByteArray(env, frameSize);
if (byteArray == NULL)
{
LOGE("Could not allocate the Java byte array to store the frame!");
goto end;
}
(*env)->SetByteArrayRegion(env, byteArray, 0, frameSize,
(jbyte *)sys->frameData);
}
end:
pthread_mutex_destroy(&sys->doneMutex);
pthread_cond_destroy(&sys->doneCondVar);
free(sys->frameData);
free(sys->thumbData);
free(sys);
return byteArray;
}