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Diffstat (limited to 'src/demuxers/demux_nsv.c')
-rw-r--r--src/demuxers/demux_nsv.c156
1 files changed, 47 insertions, 109 deletions
diff --git a/src/demuxers/demux_nsv.c b/src/demuxers/demux_nsv.c
index c0b61c28d..c1641681c 100644
--- a/src/demuxers/demux_nsv.c
+++ b/src/demuxers/demux_nsv.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2000-2002 the xine project
+ * Copyright (C) 2000-2003 the xine project
*
* This file is part of xine, a free video player.
*
@@ -16,12 +16,14 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- *
+ */
+
+/*
* Nullsoft Video (NSV) file demuxer by Mike Melanson (melanson@pcisys.net)
* For more information regarding the NSV file format, visit:
* http://www.pcisys.net/~melanson/codecs/
*
- * $Id: demux_nsv.c,v 1.2 2003/05/27 03:39:52 tmmm Exp $
+ * $Id: demux_nsv.c,v 1.3 2003/07/16 00:52:45 andruil Exp $
*/
#ifdef HAVE_CONFIG_H
@@ -34,6 +36,11 @@
#include <string.h>
#include <stdlib.h>
+/********** logging **********/
+#define LOG_MODULE "demux_nsv"
+/* #define LOG_VERBOSE */
+/* #define LOG */
+
#include "xine_internal.h"
#include "xineutils.h"
#include "compat.h"
@@ -53,78 +60,39 @@
#define BEEF 0xBEEF
-/* debug support */
-#define DEBUG_NSV 0
-
-#if DEBUG_NSV
-#define debug_nsv printf
-#else
-static inline void debug_nsv(const char *format, ...) { }
-#endif
-
typedef struct {
-
demux_plugin_t demux_plugin;
xine_stream_t *stream;
-
- config_values_t *config;
-
fifo_buffer_t *video_fifo;
fifo_buffer_t *audio_fifo;
-
input_plugin_t *input;
+ int status;
- int thread_running;
-
- off_t data_start;
off_t data_size;
- int status;
unsigned int fps;
unsigned int frame_pts_inc;
- unsigned int video_fourcc;
unsigned int video_type;
int64_t video_pts;
-
- unsigned int audio_fourcc;
unsigned int audio_type;
- unsigned int audio_bits;
- unsigned int audio_channels;
- unsigned int audio_sample_rate;
- unsigned int audio_frame_count;
xine_bmiheader bih;
- xine_waveformatex wave;
-
- char last_mrl[1024];
-
} demux_nsv_t;
typedef struct {
-
demux_class_t demux_class;
-
- /* class-wide, global variables here */
-
- xine_t *xine;
- config_values_t *config;
} demux_nsv_class_t;
/* returns 1 if the NSV file was opened successfully, 0 otherwise */
static int open_nsv_file(demux_nsv_t *this) {
+ unsigned char preview[28];
+ unsigned int video_fourcc;
+ unsigned int audio_fourcc;
- unsigned char preview[MAX_PREVIEW_SIZE];
-
- if (this->input->get_capabilities(this->input) & INPUT_CAP_SEEKABLE) {
- this->input->seek(this->input, 0, SEEK_SET);
- if (this->input->read(this->input, preview, 4) != 4)
- return 0;
- } else {
- this->input->get_optional_data(this->input, preview,
- INPUT_OPTIONAL_DATA_PREVIEW);
- }
+ if (xine_demux_read_header(this->input, preview, 4) != 4)
+ return 0;
/* check for a 'NSV' signature */
if ((preview[0] != 'N') ||
@@ -132,13 +100,10 @@ static int open_nsv_file(demux_nsv_t *this) {
(preview[2] != 'V'))
return 0;
- debug_nsv(" demux_nsv: NSV file detected\n");
+ lprintf("NSV file detected\n");
- /* file is qualified, proceed to load; jump over the first 4 bytes if
- * stream is non-seekable */
- if ((this->input->get_capabilities(this->input) & INPUT_CAP_SEEKABLE) == 0) {
- this->input->seek(this->input, 4, SEEK_SET);
- }
+ /* file is qualified, proceed to load; jump over the first 4 bytes */
+ this->input->seek(this->input, 4, SEEK_SET);
this->data_size = this->input->get_length(this->input);
@@ -149,7 +114,7 @@ static int open_nsv_file(demux_nsv_t *this) {
if (this->input->read(this->input, &preview[4], 24) != 24)
return 0;
- debug_nsv(" demux_nsv: found NSVf chunk\n");
+ lprintf("found NSVf chunk\n");
this->data_size = BE_32(&preview[8]);
/* skip the rest of the data */
@@ -169,27 +134,28 @@ static int open_nsv_file(demux_nsv_t *this) {
if (this->input->read(this->input, &preview[4], 12) != 12)
return 0;
- this->video_fourcc = ME_32(&preview[4]);
+ video_fourcc = ME_32(&preview[4]);
if (BE_32(&preview[4]) == NONE_TAG)
this->video_type = 0;
else
- this->video_type = fourcc_to_buf_video(this->video_fourcc);
- this->audio_fourcc = ME_32(&preview[8]);
+ this->video_type = fourcc_to_buf_video(video_fourcc);
+
+ audio_fourcc = ME_32(&preview[8]);
if (BE_32(&preview[8]) == NONE_TAG)
this->audio_type = 0;
else
- this->audio_type = formattag_to_buf_audio(this->audio_fourcc);
+ this->audio_type = formattag_to_buf_audio(audio_fourcc);
this->bih.biSize = sizeof(this->bih);
this->bih.biWidth = LE_16(&preview[12]);
this->bih.biHeight = LE_16(&preview[14]);
- this->bih.biCompression = this->video_fourcc;
+ this->bih.biCompression = video_fourcc;
this->video_pts = 0;
/* may not be true, but set it for the time being */
this->frame_pts_inc = 3003;
- debug_nsv(" video: %c%c%c%c, buffer type %08X, %dx%d\n",
+ lprintf("video: %c%c%c%c, buffer type %08X, %dx%d\n",
preview[4],
preview[5],
preview[6],
@@ -202,8 +168,8 @@ static int open_nsv_file(demux_nsv_t *this) {
}
static int demux_nsv_send_chunk(demux_plugin_t *this_gen) {
-
demux_nsv_t *this = (demux_nsv_t *) this_gen;
+
unsigned char header[8];
buf_element_t *buf;
off_t current_file_pos;
@@ -213,9 +179,9 @@ static int demux_nsv_send_chunk(demux_plugin_t *this_gen) {
current_file_pos = this->input->get_current_pos(this->input);
- debug_nsv (" dispatching video & audio chunks...\n");
+ lprintf("dispatching video & audio chunks...\n");
- /*
+ /*
* Read 7 bytes and expect the stream to be sitting at 1 of 3 places:
* 1) start of a new 'NSVs' chunk; need to seek over the next 9 bytes,
* read 7 bytes, and move onto case 2
@@ -236,7 +202,7 @@ static int demux_nsv_send_chunk(demux_plugin_t *this_gen) {
/* situation #3 from the comment */
case 0xBEEF:
- debug_nsv (" situation #3\n");
+ lprintf("situation #3\n");
video_size = LE_32(&header[2]);
video_size >>= 4;
video_size &= 0xFFFFF;
@@ -245,7 +211,7 @@ static int demux_nsv_send_chunk(demux_plugin_t *this_gen) {
/* situation #1 from the comment, characters 'NS' (swapped) from the stream */
case 0x534E:
- debug_nsv (" situation #1\n");
+ lprintf("situation #1\n");
this->input->seek(this->input, 9, SEEK_CUR);
if (this->input->read(this->input, header, 7) != 7) {
this->status = DEMUX_FINISHED;
@@ -256,7 +222,7 @@ static int demux_nsv_send_chunk(demux_plugin_t *this_gen) {
/* situation #2 from the comment */
default:
- debug_nsv (" situation #2\n");
+ lprintf("situation #2\n");
/* need 1 more byte */
if (this->input->read(this->input, &header[7], 1) != 1) {
this->status = DEMUX_FINISHED;
@@ -270,19 +236,19 @@ static int demux_nsv_send_chunk(demux_plugin_t *this_gen) {
/* 29.97 fps */
this->frame_pts_inc = 3003;
break;
-
+
case 3:
/* 23.976 fps */
this->frame_pts_inc = 3753;
break;
-
+
case 5:
/* 14.98 fps */
this->frame_pts_inc = 6006;
break;
default:
- printf ("demux_nsv: unknown framerate: 0x%02X\n", this->fps);
+ lprintf("unknown framerate: 0x%02X\n", this->fps);
this->frame_pts_inc = 90000;
break;
}
@@ -298,7 +264,7 @@ static int demux_nsv_send_chunk(demux_plugin_t *this_gen) {
}
- debug_nsv (" sending video chunk with size 0x%X, audio chunk with size 0x%X\n",
+ lprintf("sending video chunk with size 0x%X, audio chunk with size 0x%X\n",
video_size, audio_size);
while (video_size) {
@@ -362,7 +328,6 @@ static int demux_nsv_send_chunk(demux_plugin_t *this_gen) {
}
static void demux_nsv_send_headers(demux_plugin_t *this_gen) {
-
demux_nsv_t *this = (demux_nsv_t *) this_gen;
buf_element_t *buf;
@@ -391,11 +356,6 @@ static void demux_nsv_send_headers(demux_plugin_t *this_gen) {
buf->type = this->video_type;
this->video_fifo->put (this->video_fifo, buf);
}
-
- /* send init info to the audio decoder */
- if (this->audio_fifo && this->audio_type) {
-
- }
}
static int demux_nsv_seek (demux_plugin_t *this_gen,
@@ -403,7 +363,7 @@ static int demux_nsv_seek (demux_plugin_t *this_gen,
demux_nsv_t *this = (demux_nsv_t *) this_gen;
- debug_nsv(" demux_nsv: starting demuxer\n");
+ lprintf("starting demuxer\n");
/* if thread is not running, initialize demuxer */
if( !this->stream->demux_thread_running ) {
@@ -428,7 +388,6 @@ static int demux_nsv_get_status (demux_plugin_t *this_gen) {
}
static int demux_nsv_get_stream_length (demux_plugin_t *this_gen) {
-
return 0;
}
@@ -438,14 +397,12 @@ static uint32_t demux_nsv_get_capabilities(demux_plugin_t *this_gen) {
static int demux_nsv_get_optional_data(demux_plugin_t *this_gen,
void *data, int data_type) {
-
return DEMUX_OPTIONAL_UNSUPPORTED;
}
static demux_plugin_t *open_plugin (demux_class_t *class_gen, xine_stream_t *stream,
- input_plugin_t *input_gen) {
+ input_plugin_t *input) {
- input_plugin_t *input = (input_plugin_t *) input_gen;
demux_nsv_t *this;
this = xine_xmalloc (sizeof (demux_nsv_t));
@@ -468,40 +425,27 @@ static demux_plugin_t *open_plugin (demux_class_t *class_gen, xine_stream_t *str
switch (stream->content_detection_method) {
- case METHOD_BY_CONTENT:
- case METHOD_EXPLICIT:
-
- if (!open_nsv_file(this)) {
- free (this);
- return NULL;
- }
-
- break;
-
case METHOD_BY_EXTENSION: {
- char *ending, *mrl;
+ char *extensions, *mrl;
mrl = input->get_mrl (input);
+ extensions = class_gen->get_extensions (class_gen);
- ending = strrchr(mrl, '.');
-
- if (!ending) {
+ if (!xine_demux_check_extension (mrl, extensions)) {
free (this);
return NULL;
}
+ }
+ /* falling through is intended */
- if (strncasecmp (ending, ".nsv", 4)) {
- free (this);
- return NULL;
- }
+ case METHOD_BY_CONTENT:
+ case METHOD_EXPLICIT:
if (!open_nsv_file(this)) {
free (this);
return NULL;
}
- }
-
break;
default:
@@ -509,8 +453,6 @@ static demux_plugin_t *open_plugin (demux_class_t *class_gen, xine_stream_t *str
return NULL;
}
- strncpy (this->last_mrl, input->get_mrl (input), 1024);
-
return &this->demux_plugin;
}
@@ -531,19 +473,15 @@ static char *get_mimetypes (demux_class_t *this_gen) {
}
static void class_dispose (demux_class_t *this_gen) {
-
demux_nsv_class_t *this = (demux_nsv_class_t *) this_gen;
free (this);
}
void *demux_nsv_init_plugin (xine_t *xine, void *data) {
-
demux_nsv_class_t *this;
- this = xine_xmalloc (sizeof (demux_nsv_class_t));
- this->config = xine->config;
- this->xine = xine;
+ this = xine_xmalloc (sizeof (demux_nsv_class_t));
this->demux_class.open_plugin = open_plugin;
this->demux_class.get_description = get_description;
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 22:55:27 +0000