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Diffstat (limited to 'src/demuxers/demux_vqa.c')
-rw-r--r--src/demuxers/demux_vqa.c225
1 files changed, 124 insertions, 101 deletions
diff --git a/src/demuxers/demux_vqa.c b/src/demuxers/demux_vqa.c
index e6599a80b..4d272498f 100644
--- a/src/demuxers/demux_vqa.c
+++ b/src/demuxers/demux_vqa.c
@@ -21,7 +21,7 @@
* For more information regarding the VQA file format, visit:
* http://www.pcisys.net/~melanson/codecs/
*
- * $Id: demux_vqa.c,v 1.6 2002/09/10 15:07:14 mroi Exp $
+ * $Id: demux_vqa.c,v 1.7 2002/09/21 20:27:02 tmmm Exp $
*/
#ifdef HAVE_CONFIG_H
@@ -257,6 +257,119 @@ static void *demux_vqa_loop (void *this_gen) {
return NULL;
}
+static int load_vqa_and_send_headers(demux_vqa_t *this) {
+
+ unsigned char header[VQA_HEADER_SIZE];
+ unsigned char *finf_chunk;
+ int i;
+ off_t last_offset;
+ uint64_t audio_pts_counter = 0;
+ uint64_t video_pts_counter = 0;
+
+ pthread_mutex_lock(&this->mutex);
+
+ this->video_fifo = this->xine->video_fifo;
+ this->audio_fifo = this->xine->audio_fifo;
+
+ this->status = DEMUX_OK;
+
+ /* get the file size (a.k.a., last offset) as reported by the file */
+ this->input->seek(this->input, 4, SEEK_SET);
+ if (this->input->read(this->input, header, 4) != 4) {
+ this->status = DEMUX_FINISHED;
+ pthread_mutex_unlock(&this->mutex);
+ return DEMUX_CANNOT_HANDLE;
+ }
+ last_offset = BE_32(&header[0]);
+
+ /* get the actual filesize */
+ this->filesize = this->input->get_length(this->input);
+
+ /* skip to the VQA header */
+ this->input->seek(this->input, 20, SEEK_SET);
+ if (this->input->read(this->input, header, VQA_HEADER_SIZE)
+ != VQA_HEADER_SIZE) {
+ this->status = DEMUX_FINISHED;
+ pthread_mutex_unlock(&this->mutex);
+ return DEMUX_CANNOT_HANDLE;
+ }
+
+ /* fetch the interesting information */
+ this->total_frames = LE_16(&header[4]);
+ this->video_width = LE_16(&header[6]);
+ this->video_height = LE_16(&header[8]);
+ this->vector_width = header[10];
+ this->vector_height = header[11];
+ this->audio_sample_rate = LE_16(&header[24]);
+ this->audio_channels = header[26];
+
+ /* fetch the chunk table */
+ this->input->seek(this->input, 8, SEEK_CUR); /* skip FINF and length */
+ finf_chunk = xine_xmalloc(this->total_frames * 4);
+ this->frame_table = xine_xmalloc(this->total_frames * sizeof(vqa_frame_t));
+ if (this->input->read(this->input, finf_chunk, this->total_frames * 4) !=
+ this->total_frames * 4) {
+ this->status = DEMUX_FINISHED;
+ pthread_mutex_unlock(&this->mutex);
+ return DEMUX_CANNOT_HANDLE;
+ }
+ for (i = 0; i < this->total_frames; i++) {
+ this->frame_table[i].frame_offset = (LE_32(&finf_chunk[i * 4]) * 2) &
+ 0x03FFFFFF;
+ if (i < this->total_frames - 1)
+ this->frame_table[i].frame_size = LE_32(&finf_chunk[(i + 1) * 4]) * 2 -
+ this->frame_table[i].frame_offset;
+ else
+ this->frame_table[i].frame_size = last_offset -
+ this->frame_table[i].frame_offset;
+
+ /*
+ * VQA files play at a constant rate of 15 frames/second. The file data
+ * begins with 1/15 sec of compressed audio followed by 1 video frame
+ * that will be displayed for 1/15 sec.
+ *
+ * xine pts frame #
+ * -------- = ------- => xine pts = 90000 * frame # / 15
+ * 90000 15
+ *
+ * Thus, each frame has a duration of 90000 / 15 (VQA_PTS_INC, in
+ * this code).
+ *
+ * If this is the first frame in the file, it contains 1/2 sec
+ * of audio and no video. Each successive frame represents 1/15 sec.
+ */
+ if (i == 0) {
+ this->frame_table[i].audio_pts = 0;
+ this->frame_table[i].video_pts = 0;
+ audio_pts_counter += (90000 / 2);
+ } else {
+ this->frame_table[i].audio_pts = audio_pts_counter;
+ this->frame_table[i].video_pts = video_pts_counter;
+ audio_pts_counter += VQA_PTS_INC;
+ video_pts_counter += VQA_PTS_INC;
+ }
+ }
+
+ this->total_time = this->frame_table[this->total_frames - 1].video_pts /
+ 90000;
+
+ /* load stream information */
+ this->xine->stream_info[XINE_STREAM_INFO_VIDEO_WIDTH] = this->video_width;
+ this->xine->stream_info[XINE_STREAM_INFO_VIDEO_HEIGHT] = this->video_height;
+ this->xine->stream_info[XINE_STREAM_INFO_AUDIO_CHANNELS] =
+ this->audio_channels;
+ this->xine->stream_info[XINE_STREAM_INFO_AUDIO_SAMPLERATE] =
+ this->audio_sample_rate;
+ this->xine->stream_info[XINE_STREAM_INFO_AUDIO_BITS] =
+ this->audio_bits;
+
+ xine_demux_control_headers_done (this->xine);
+
+ pthread_mutex_unlock (&this->mutex);
+
+ return DEMUX_CAN_HANDLE;
+}
+
static int demux_vqa_open(demux_plugin_t *this_gen, input_plugin_t *input,
int stage) {
demux_vqa_t *this = (demux_vqa_t *) this_gen;
@@ -276,7 +389,7 @@ static int demux_vqa_open(demux_plugin_t *this_gen, input_plugin_t *input,
/* check for the VQA signatures */
if ((BE_32(&header[0]) == FORM_TAG) &&
(BE_32(&header[8]) == WVQA_TAG))
- return DEMUX_CAN_HANDLE;
+ return load_vqa_and_send_headers(this);
return DEMUX_CANNOT_HANDLE;
}
@@ -302,10 +415,8 @@ static int demux_vqa_open(demux_plugin_t *this_gen, input_plugin_t *input,
while(*m == ' ' || *m == '\t') m++;
- if(!strcasecmp((suffix + 1), m)) {
- this->input = input;
- return DEMUX_CAN_HANDLE;
- }
+ if(!strcasecmp((suffix + 1), m))
+ return load_vqa_and_send_headers(this);
}
return DEMUX_CANNOT_HANDLE;
}
@@ -321,113 +432,23 @@ static int demux_vqa_open(demux_plugin_t *this_gen, input_plugin_t *input,
}
static int demux_vqa_start (demux_plugin_t *this_gen,
- fifo_buffer_t *video_fifo,
- fifo_buffer_t *audio_fifo,
off_t start_pos, int start_time) {
demux_vqa_t *this = (demux_vqa_t *) this_gen;
buf_element_t *buf;
int err;
- unsigned char header[VQA_HEADER_SIZE];
- unsigned char *finf_chunk;
- int i;
- off_t last_offset;
- uint64_t audio_pts_counter = 0;
- uint64_t video_pts_counter = 0;
pthread_mutex_lock(&this->mutex);
/* if thread is not running, initialize demuxer */
if (!this->thread_running) {
- this->video_fifo = video_fifo;
- this->audio_fifo = audio_fifo;
-
- /* get the file size (a.k.a., last offset) as reported by the file */
- this->input->seek(this->input, 4, SEEK_SET);
- if (this->input->read(this->input, header, 4) != 4) {
- this->status = DEMUX_FINISHED;
- pthread_mutex_unlock(&this->mutex);
- return DEMUX_FINISHED;
- }
- last_offset = BE_32(&header[0]);
-
- /* get the actual filesize */
- this->filesize = this->input->get_length(this->input);
-
- /* skip to the VQA header */
- this->input->seek(this->input, 20, SEEK_SET);
- if (this->input->read(this->input, header, VQA_HEADER_SIZE)
- != VQA_HEADER_SIZE) {
- this->status = DEMUX_FINISHED;
- pthread_mutex_unlock(&this->mutex);
- return DEMUX_FINISHED;
- }
-
- /* fetch the interesting information */
- this->total_frames = LE_16(&header[4]);
- this->video_width = LE_16(&header[6]);
- this->video_height = LE_16(&header[8]);
- this->vector_width = header[10];
- this->vector_height = header[11];
- this->audio_sample_rate = LE_16(&header[24]);
- this->audio_channels = header[26];
-
- /* fetch the chunk table */
- this->input->seek(this->input, 8, SEEK_CUR); /* skip FINF and length */
- finf_chunk = xine_xmalloc(this->total_frames * 4);
- this->frame_table = xine_xmalloc(this->total_frames * sizeof(vqa_frame_t));
- if (this->input->read(this->input, finf_chunk, this->total_frames * 4) !=
- this->total_frames * 4) {
- this->status = DEMUX_FINISHED;
- pthread_mutex_unlock(&this->mutex);
- return DEMUX_FINISHED;
- }
- for (i = 0; i < this->total_frames; i++) {
- this->frame_table[i].frame_offset = (LE_32(&finf_chunk[i * 4]) * 2) &
- 0x03FFFFFF;
- if (i < this->total_frames - 1)
- this->frame_table[i].frame_size = LE_32(&finf_chunk[(i + 1) * 4]) * 2 -
- this->frame_table[i].frame_offset;
- else
- this->frame_table[i].frame_size = last_offset -
- this->frame_table[i].frame_offset;
-
- /*
- * VQA files play at a constant rate of 15 frames/second. The file data
- * begins with 1/15 sec of compressed audio followed by 1 video frame
- * that will be displayed for 1/15 sec.
- *
- * xine pts frame #
- * -------- = ------- => xine pts = 90000 * frame # / 15
- * 90000 15
- *
- * Thus, each frame has a duration of 90000 / 15 (VQA_PTS_INC, in
- * this code).
- *
- * If this is the first frame in the file, it contains 1/2 sec
- * of audio and no video. Each successive frame represents 1/15 sec.
- */
- if (i == 0) {
- this->frame_table[i].audio_pts = 0;
- this->frame_table[i].video_pts = 0;
- audio_pts_counter += (90000 / 2);
- } else {
- this->frame_table[i].audio_pts = audio_pts_counter;
- this->frame_table[i].video_pts = video_pts_counter;
- audio_pts_counter += VQA_PTS_INC;
- video_pts_counter += VQA_PTS_INC;
- }
- }
-
- this->total_time = this->frame_table[this->total_frames - 1].video_pts /
- 90000;
/* print vital stats */
- xine_log (this->xine, XINE_LOG_FORMAT,
+ xine_log (this->xine, XINE_LOG_MSG,
_("demux_vqa: running time: %d min, %d sec\n"),
this->total_time / 60,
this->total_time % 60);
- xine_log (this->xine, XINE_LOG_FORMAT,
+ xine_log (this->xine, XINE_LOG_MSG,
_("demux_vqa: %dx%d VQA video; %d-channel %d Hz IMA ADPCM audio\n"),
this->video_width,
this->video_height,
@@ -496,6 +517,8 @@ static int demux_vqa_start (demux_plugin_t *this_gen,
static int demux_vqa_seek (demux_plugin_t *this_gen,
off_t start_pos, int start_time) {
+ /* VQA files are not built for seeking; don't even bother */
+
return 0;
}
@@ -522,7 +545,7 @@ static void demux_vqa_stop (demux_plugin_t *this_gen) {
xine_demux_control_end(this->xine, BUF_FLAG_END_USER);
}
-static void demux_vqa_close (demux_plugin_t *this_gen) {
+static void demux_vqa_dispose (demux_plugin_t *this_gen) {
demux_vqa_t *this = (demux_vqa_t *) this_gen;
@@ -566,7 +589,7 @@ static void *init_demuxer_plugin(xine_t *xine, void *data) {
this->demux_plugin.start = demux_vqa_start;
this->demux_plugin.seek = demux_vqa_seek;
this->demux_plugin.stop = demux_vqa_stop;
- this->demux_plugin.close = demux_vqa_close;
+ this->demux_plugin.dispose = demux_vqa_dispose;
this->demux_plugin.get_status = demux_vqa_get_status;
this->demux_plugin.get_identifier = demux_vqa_get_id;
this->demux_plugin.get_stream_length = demux_vqa_get_stream_length;
@@ -584,6 +607,6 @@ static void *init_demuxer_plugin(xine_t *xine, void *data) {
plugin_info_t xine_plugin_info[] = {
/* type, API, "name", version, special_info, init_function */
- { PLUGIN_DEMUX, 10, "vqa", XINE_VERSION_CODE, NULL, init_demuxer_plugin },
+ { PLUGIN_DEMUX, 11, "vqa", XINE_VERSION_CODE, NULL, init_demuxer_plugin },
{ PLUGIN_NONE, 0, "", 0, NULL, NULL }
};