diff options
Diffstat (limited to 'src/input/input_v4l.c')
| -rw-r--r-- | src/input/input_v4l.c | 135 |
1 files changed, 59 insertions, 76 deletions
diff --git a/src/input/input_v4l.c b/src/input/input_v4l.c index df0e0e48b..192115327 100644 --- a/src/input/input_v4l.c +++ b/src/input/input_v4l.c @@ -143,6 +143,10 @@ typedef struct { int old_zoomx; int old_zoomy; int audio_only; + + buf_element_t *frames_base; + void *audio_content_base; + void *video_content_base; /* Audio */ buf_element_t *aud_frames; @@ -372,7 +376,7 @@ static pvrscr_t* pvrscr_init (void) { pvrscr_t *this; - this = (pvrscr_t *) xine_xmalloc(sizeof(pvrscr_t)); + this = calloc(1, sizeof(pvrscr_t)); this->scr.interface_version = 3; this->scr.get_priority = pvrscr_get_priority; @@ -742,23 +746,50 @@ static int search_by_channel(v4l_input_plugin_t *this, char *input_source) return 1; } -static void allocate_audio_frames(v4l_input_plugin_t *this) +static void allocate_frames(v4l_input_plugin_t *this, unsigned dovideo) { + const size_t framescount = dovideo ? 2*NUM_FRAMES : NUM_FRAMES; + + /* Allocate a single memory area for both audio and video frames */ + buf_element_t *frames = this->frames_base = + calloc(framescount, sizeof(buf_element_t)); + extra_info_t *infos = + calloc(framescount, sizeof(extra_info_t)); + int i; - + + uint8_t *audio_content = this->audio_content_base = + calloc(NUM_FRAMES, this->periodsize); + + /* Set up audio frames */ for (i = 0; i < NUM_FRAMES; i++) { - buf_element_t *frame; - /* Audio frame */ - frame = xine_xmalloc(sizeof(buf_element_t)); - - frame->content = xine_xmalloc(this->periodsize); - frame->type = BUF_AUDIO_LPCM_LE; - frame->source = this; - frame->free_buffer = store_aud_frame; - frame->extra_info = xine_xmalloc(sizeof(extra_info_t)); + frames[i].content = audio_content; + frames[i].type = BUF_AUDIO_LPCM_LE; + frames[i].source = this; + frames[i].free_buffer = store_aud_frame; + frames[i].extra_info = &infos[i]; - store_aud_frame(frame); + audio_content += this->periodsize; + store_aud_frame(&frames[i]); + } + + if ( dovideo ) { + uint8_t *video_content = this->video_content_base = + calloc(NUM_FRAMES, this->frame_size); + + /* Set up video frames */ + for (i = NUM_FRAMES; i < 2*NUM_FRAMES; i++) { + /* Video frame */ + frames[i].content = video_content; + frames[i].type = this->frame_format; + frames[i].source = this; + frames[i].free_buffer = store_vid_frame; + frames[i].extra_info = &infos[i]; + + video_content += this->frame_size; + store_vid_frame(&frames[i]); + } } } @@ -809,7 +840,7 @@ static int open_radio_capture_device(v4l_input_plugin_t *this) /* Pre-allocate some frames for audio so it doesn't have to be done during * capture */ - allocate_audio_frames(this); + allocate_frames(this, 0); this->audio_only = 1; @@ -881,7 +912,7 @@ static int open_video_capture_device(v4l_input_plugin_t *this) /* Pre-allocate some frames for audio and video so it doesn't have to be * done during capture */ - allocate_audio_frames(this); + allocate_frames(this, 1); /* Unmute audio off video capture device */ unmute_audio(this); @@ -985,20 +1016,6 @@ static int open_video_capture_device(v4l_input_plugin_t *this) break; } - for (i = 0; i < NUM_FRAMES; i++) { - buf_element_t *frame; - - frame = xine_xmalloc (sizeof (buf_element_t)); - - frame->content = xine_xmalloc (this->frame_size); - frame->type = this->frame_format; - frame->source = this; - frame->free_buffer = store_vid_frame; - frame->extra_info = xine_xmalloc(sizeof(extra_info_t)); - - store_vid_frame(frame); - } - /* Strip the vbi / sync signal from the image by zooming in */ this->old_zoomx = xine_get_param(this->stream, XINE_PARAM_VO_ZOOM_X); this->old_zoomy = xine_get_param(this->stream, XINE_PARAM_VO_ZOOM_Y); @@ -1600,52 +1617,18 @@ static void v4l_plugin_dispose (input_plugin_t *this_gen) { if (this->event_queue) xine_event_dispose_queue (this->event_queue); - - lprintf("Freeing allocated audio frames"); - if (this->aud_frames) { - buf_element_t *cur_frame = this->aud_frames; - - while (cur_frame != NULL) { - buf_element_t *next_frame = cur_frame->next; -#ifdef LOG - printf("."); -#endif - - if (cur_frame->content) - free(cur_frame->content); - - if (cur_frame->extra_info) - free(cur_frame->extra_info); - - free(cur_frame); - cur_frame = next_frame; - } - } -#ifdef LOG - printf("\n"); -#endif - - lprintf("Freeing allocated video frames"); - if (this->vid_frames) { - buf_element_t *cur_frame = this->vid_frames; - - while (cur_frame != NULL) { - buf_element_t *next_frame = cur_frame->next; -#ifdef LOG - printf("."); -#endif + /* All the frames, both video and audio, are allocated in a single + memory area pointed by the frames_base pointer. The content of + the frames is divided in two areas, one pointed by + audio_content_base and the other by video_content_base. The + extra_info structures are all allocated in the first frame + data. */ + free(this->audio_content_base); + free(this->video_content_base); + free(this->frames_base->extra_info); + free(this->frames_base); - if (cur_frame->content) - free(cur_frame->content); - - if (cur_frame->extra_info) - free(cur_frame->extra_info); - - free(cur_frame); - cur_frame = next_frame; - } - } #ifdef LOG printf("\n"); #endif @@ -1746,7 +1729,7 @@ static input_plugin_t *v4l_class_get_instance (input_class_t *cls_gen, return NULL; } - this = (v4l_input_plugin_t *) xine_xmalloc (sizeof (v4l_input_plugin_t)); + this = calloc(1, sizeof (v4l_input_plugin_t)); extract_mrl(this, mrl); @@ -1912,7 +1895,7 @@ static void *init_video_class (xine_t *xine, void *data) v4l_input_class_t *this; config_values_t *config = xine->config; - this = (v4l_input_class_t *) xine_xmalloc (sizeof (v4l_input_class_t)); + this = calloc(1, sizeof (v4l_input_class_t)); this->xine = xine; @@ -1952,7 +1935,7 @@ static void *init_radio_class (xine_t *xine, void *data) v4l_input_class_t *this; config_values_t *config = xine->config; - this = (v4l_input_class_t *) xine_xmalloc (sizeof (v4l_input_class_t)); + this = calloc(1, sizeof (v4l_input_class_t)); this->xine = xine; |