void destroy_mutex(pthread_mutex_t* mutex)
{
int err;
if (mutex == NULL)
{
return;
}
if ((err = pthread_mutex_destroy(mutex)) != 0)
{
ml_log_warn("Failed to destroy mutex: %s\n", strerror(err));
}
}
void destroy_cond_var(pthread_cond_t* cond)
{
int err;
if (cond == NULL)
{
return;
}
if ((err = pthread_cond_destroy(cond) != 0))
{
ml_log_warn("Failed to destroy conditional variable: %s\n", strerror(err));
}
}
void cancel_and_join_thread(pthread_t* thread, void* data, void (*stop_func)(void*))
{
int result;
void* status;
if (*thread != 0)
{
if (stop_func != NULL)
{
stop_func(data);
}
if ((result = pthread_cancel(*thread)) != 0)
{
ml_log_warn("Failed to cancel thread: %s\n", strerror(result));
}
if ((result = pthread_join(*thread, (void **)&status)) != 0)
{
ml_log_warn("Failed to join thread: %s\n", strerror(result));
}
*thread = 0;
}
}
int cps_create(MediaSource* targetSource, const Rational* frameRate, int64_t start, int64_t duration, ClipSource** clipSource)
{
ClipSource* newClipSource;
if (start > 0 && !msc_seek(targetSource, start))
{
ml_log_warn("Failed to seek to start of the clip\n");
}
CALLOC_ORET(newClipSource, ClipSource, 1);
newClipSource->targetSource = targetSource;
newClipSource->start = (start < 0) ? 0 : start;
newClipSource->duration = duration;
newClipSource->frameRate = *frameRate; /* note: frameRate could be 0/0 */
newClipSource->mediaSource.data = newClipSource;
newClipSource->mediaSource.is_complete = cps_is_complete;
newClipSource->mediaSource.post_complete = cps_post_complete;
newClipSource->mediaSource.finalise_blank_source = cps_finalise_blank_source;
newClipSource->mediaSource.get_num_streams = cps_get_num_streams;
newClipSource->mediaSource.get_stream_info = cps_get_stream_info;
newClipSource->mediaSource.set_frame_rate_or_disable = cps_set_frame_rate_or_disable;
newClipSource->mediaSource.disable_stream = cps_disable_stream;
newClipSource->mediaSource.disable_audio = cps_disable_audio;
newClipSource->mediaSource.disable_video = cps_disable_video;
newClipSource->mediaSource.stream_is_disabled = cps_stream_is_disabled;
newClipSource->mediaSource.read_frame = cps_read_frame;
newClipSource->mediaSource.is_seekable = cps_is_seekable;
newClipSource->mediaSource.seek = cps_seek;
newClipSource->mediaSource.seek_timecode = cps_seek_timecode;
newClipSource->mediaSource.get_length = cps_get_length;
newClipSource->mediaSource.get_position = cps_get_position;
newClipSource->mediaSource.get_available_length = cps_get_available_length;
newClipSource->mediaSource.eof = cps_eof;
newClipSource->mediaSource.set_source_name = cps_set_source_name;
newClipSource->mediaSource.set_clip_id = cps_set_clip_id;
newClipSource->mediaSource.close = cps_close;
newClipSource->mediaSource.get_buffer_state = cps_get_buffer_state;
newClipSource->mediaSource.convert_position = cps_convert_position;
*clipSource = newClipSource;
return 1;
}
void free_dv_decoder_resources()
{
int i;
DVDecoder* decoder = NULL;
int refCount;
if (g_decoderResourceRefCount <= 0)
{
return;
}
PTHREAD_MUTEX_LOCK(&g_decoderResource.resourceMutex);
g_decoderResourceRefCount--;
refCount = g_decoderResourceRefCount;
PTHREAD_MUTEX_UNLOCK(&g_decoderResource.resourceMutex);
if (refCount == 0)
{
if (g_decoderResource.numDecodersInUse > 0)
{
ml_log_warn("There are %d DV decoder resources still in use - please fix the source code\n",
g_decoderResource.numDecodersInUse);
}
for (i = 0; i < g_decoderResource.numDecoders; i++)
{
/* set decoder NULL in list so that free doesn't just change it to !inUse */
decoder = g_decoderResource.decoder[i];
g_decoderResource.decoder[i] = NULL;
free_dv_decoder(&decoder);
}
destroy_mutex(&g_decoderResource.resourceMutex);
memset(&g_decoderResource, 0, sizeof(DVDecoderResource));
}
}
