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-rw-r--r--src/demuxers/Makefile.am7
-rw-r--r--src/demuxers/demux_nsv.c558
2 files changed, 564 insertions, 1 deletions
diff --git a/src/demuxers/Makefile.am b/src/demuxers/Makefile.am
index 47d7de8d7..b6bdde3ee 100644
--- a/src/demuxers/Makefile.am
+++ b/src/demuxers/Makefile.am
@@ -42,7 +42,8 @@ lib_LTLIBRARIES = $(ogg_module) $(asf_module) $(mng_module) $(image_module) \
xineplug_dmx_rawdv.la \
xineplug_dmx_pva.la \
xineplug_dmx_yuv_frames.la \
- xineplug_dmx_slave.la
+ xineplug_dmx_slave.la \
+ xineplug_dmx_nsv.la
xineplug_dmx_ogg_la_SOURCES = demux_ogg.c
xineplug_dmx_ogg_la_LIBADD = $(OGG_LIBS) $(VORBIS_LIBS) $(THEORA_LIBS) $(XINE_LIB)
@@ -132,5 +133,9 @@ xineplug_dmx_image_la_SOURCES = demux_image.c
xineplug_dmx_image_la_LIBADD = $(XINE_LIB)
xineplug_dmx_image_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@
+xineplug_dmx_nsv_la_SOURCES = demux_nsv.c
+xineplug_dmx_nsv_la_LIBADD = $(XINE_LIB)
+xineplug_dmx_nsv_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@
+
include_HEADERS = demux.h
noinst_HEADERS = asfheader.h qtpalette.h
diff --git a/src/demuxers/demux_nsv.c b/src/demuxers/demux_nsv.c
new file mode 100644
index 000000000..fb2abd252
--- /dev/null
+++ b/src/demuxers/demux_nsv.c
@@ -0,0 +1,558 @@
+/*
+ * Copyright (C) 2000-2002 the xine project
+ *
+ * This file is part of xine, a free video player.
+ *
+ * xine is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * xine is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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 1.1 2003/05/19 21:59:46 tmmm Exp $
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "xine_internal.h"
+#include "xineutils.h"
+#include "compat.h"
+#include "demux.h"
+#include "bswap.h"
+#include "buffer.h"
+
+#define FOURCC_TAG( ch0, ch1, ch2, ch3 ) \
+ ( (long)(unsigned char)(ch3) | \
+ ( (long)(unsigned char)(ch2) << 8 ) | \
+ ( (long)(unsigned char)(ch1) << 16 ) | \
+ ( (long)(unsigned char)(ch0) << 24 ) )
+
+#define NSVf_TAG FOURCC_TAG('N', 'S', 'V', 'f')
+#define NSVs_TAG FOURCC_TAG('N', 'S', 'V', 's')
+#define NONE_TAG FOURCC_TAG('N', 'O', 'N', 'E')
+
+#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 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[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);
+ }
+
+ /* check for a 'NSV' signature */
+ if ((preview[0] != 'N') ||
+ (preview[1] != 'S') ||
+ (preview[2] != 'V'))
+ return 0;
+
+ debug_nsv(" demux_nsv: 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);
+ }
+
+ if (BE_32(&preview[0]) == NSVf_TAG) {
+
+ /* if there is a NSVs tag, load 24 more header bytes; load starting at
+ * offset 4 in buffer to keep header data in line with document */
+ if (this->input->read(this->input, &preview[4], 24) != 24)
+ return 0;
+
+ debug_nsv(" demux_nsv: found NSVf chunk\n");
+ this->data_size = BE_32(&preview[8]);
+
+ /* skip the rest of the data */
+ this->input->seek(this->input, LE_32(&preview[4]) - 28, SEEK_CUR);
+
+ }
+
+ this->data_size = this->input->get_length(this->input);
+
+ /* fetch the 16 header bytes of the first chunk to get the relevant
+ * information */
+ if (this->input->read(this->input, preview, 16) != 16)
+ return 0;
+
+ /* make sure it is a 'NSVs' chunk */
+ if (preview[3] != 's')
+ return 0;
+
+ this->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]);
+ if (BE_32(&preview[8]) == NONE_TAG)
+ this->audio_type = 0;
+ else
+ this->audio_type = formattag_to_buf_audio(this->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->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",
+ preview[4],
+ preview[5],
+ preview[6],
+ preview[7],
+ this->video_type,
+ this->bih.biWidth,
+ this->bih.biHeight);
+
+ return 1;
+}
+
+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;
+ int video_size;
+ int audio_size;
+ int chunk_id;
+
+ current_file_pos = this->input->get_current_pos(this->input);
+
+ debug_nsv (" 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
+ * 2) at the length info at the start of a NSVs chunk; use the first
+ * as a FPS byte, read one more byte from the stream and use bytes
+ * 3-7 as the length info
+ * 3) at the BEEF marker indicating a new chunk within the NSVs chunk;
+ * use bytes 2-6 as the length info
+ */
+
+ if (this->input->read(this->input, header, 7) != 7) {
+ this->status = DEMUX_FINISHED;
+ return this->status;
+ }
+
+ chunk_id = LE_16(&header[0]);
+ switch (chunk_id) {
+
+ /* situation #3 from the comment */
+ case 0xBEEF:
+ debug_nsv (" situation #3\n");
+ video_size = LE_32(&header[2]);
+ video_size >>= 4;
+ video_size &= 0xFFFFF;
+ audio_size = LE_16(&header[5]);
+ break;
+
+ /* situation #1 from the comment, characters 'NS' (swapped) from the stream */
+ case 0x534E:
+ debug_nsv (" situation #1\n");
+ this->input->seek(this->input, 9, SEEK_CUR);
+ if (this->input->read(this->input, header, 7) != 7) {
+ this->status = DEMUX_FINISHED;
+ return this->status;
+ }
+
+ /* yes, fall through intentionally to situation #2, per comment */
+
+ /* situation #2 from the comment */
+ default:
+ debug_nsv (" situation #2\n");
+ /* need 1 more byte */
+ if (this->input->read(this->input, &header[7], 1) != 1) {
+ this->status = DEMUX_FINISHED;
+ return this->status;
+ }
+
+ this->fps = header[0];
+ if (this->fps & 0x80) {
+ switch (this->fps & 0x7F) {
+ case 1:
+ /* 29.97 fps */
+ this->frame_pts_inc = 3003;
+ break;
+
+ case 5:
+ /* 14.98 fps */
+ this->frame_pts_inc = 6006;
+ break;
+
+ default:
+ printf ("demux_nsv: unknown framerate: 0x%02X\n", this->fps);
+ this->frame_pts_inc = 90000;
+ break;
+ }
+ } else
+ this->frame_pts_inc = 90000 / this->fps;
+
+ video_size = LE_32(&header[3]);
+ video_size >>= 4;
+ video_size &= 0xFFFFF;
+ audio_size = LE_16(&header[6]);
+
+ break;
+
+ }
+
+ debug_nsv (" sending video chunk with size 0x%X, audio chunk with size 0x%X\n",
+ video_size, audio_size);
+
+ while (video_size) {
+ buf = this->video_fifo->buffer_pool_alloc (this->video_fifo);
+
+ if (video_size > buf->max_size)
+ buf->size = buf->max_size;
+ else
+ buf->size = video_size;
+ video_size -= buf->size;
+
+ if (this->input->read(this->input, buf->content, buf->size) != buf->size) {
+ buf->free_buffer(buf);
+ this->status = DEMUX_FINISHED;
+ return this->status;
+ }
+
+ buf->type = this->video_type;
+ buf->extra_info->input_pos = current_file_pos;
+ buf->extra_info->input_time = this->video_pts / 90;
+ buf->extra_info->input_length = this->data_size;
+ buf->pts = this->video_pts;
+ buf->decoder_flags |= BUF_FLAG_FRAMERATE;
+ buf->decoder_info[0] = this->frame_pts_inc;
+
+ if (!video_size)
+ buf->decoder_flags |= BUF_FLAG_FRAME_END;
+ this->video_fifo->put(this->video_fifo, buf);
+ }
+
+ while (audio_size) {
+ buf = this->audio_fifo->buffer_pool_alloc (this->audio_fifo);
+
+ if (audio_size > buf->max_size)
+ buf->size = buf->max_size;
+ else
+ buf->size = audio_size;
+ audio_size -= buf->size;
+
+ if (this->input->read(this->input, buf->content, buf->size) != buf->size) {
+ buf->free_buffer(buf);
+ this->status = DEMUX_FINISHED;
+ return this->status;
+ }
+
+ buf->type = this->audio_type;
+ buf->extra_info->input_pos = current_file_pos;
+ buf->extra_info->input_time = this->video_pts / 90;
+ buf->extra_info->input_length = this->data_size;
+ buf->pts = this->video_pts;
+ buf->decoder_flags |= BUF_FLAG_FRAMERATE;
+ buf->decoder_info[0] = this->frame_pts_inc;
+
+ if (!audio_size)
+ buf->decoder_flags |= BUF_FLAG_FRAME_END;
+ this->audio_fifo->put(this->audio_fifo, buf);
+ }
+
+ this->video_pts += this->frame_pts_inc;
+ return this->status;
+}
+
+static void demux_nsv_send_headers(demux_plugin_t *this_gen) {
+
+ demux_nsv_t *this = (demux_nsv_t *) this_gen;
+ buf_element_t *buf;
+
+ this->video_fifo = this->stream->video_fifo;
+ this->audio_fifo = this->stream->audio_fifo;
+
+ this->status = DEMUX_OK;
+
+ /* load stream information */
+ this->stream->stream_info[XINE_STREAM_INFO_HAS_VIDEO] = (this->video_type) ? 1 : 0;
+ this->stream->stream_info[XINE_STREAM_INFO_HAS_AUDIO] = (this->audio_type) ? 1 : 0;
+ this->stream->stream_info[XINE_STREAM_INFO_VIDEO_WIDTH] = this->bih.biWidth;
+ this->stream->stream_info[XINE_STREAM_INFO_VIDEO_HEIGHT] = this->bih.biHeight;
+
+ /* send start buffers */
+ xine_demux_control_start(this->stream);
+
+ /* send init info to the video decoder */
+ if (this->video_fifo && this->video_type) {
+ buf = this->video_fifo->buffer_pool_alloc (this->video_fifo);
+ buf->decoder_flags = BUF_FLAG_HEADER;
+ buf->decoder_info[0] = 0;
+ buf->decoder_info[1] = this->frame_pts_inc;
+ memcpy(buf->content, &this->bih, sizeof(this->bih));
+ buf->size = sizeof(this->bih);
+ 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,
+ off_t start_pos, int start_time) {
+
+ demux_nsv_t *this = (demux_nsv_t *) this_gen;
+
+ debug_nsv(" demux_nsv: starting demuxer\n");
+ /* if thread is not running, initialize demuxer */
+ if( !this->stream->demux_thread_running ) {
+
+ /* send new pts */
+ xine_demux_control_newpts(this->stream, 0, 0);
+
+ this->status = DEMUX_OK;
+ }
+
+ return this->status;
+}
+
+static void demux_nsv_dispose (demux_plugin_t *this) {
+
+ free(this);
+}
+
+static int demux_nsv_get_status (demux_plugin_t *this_gen) {
+ demux_nsv_t *this = (demux_nsv_t *) this_gen;
+
+ return this->status;
+}
+
+static int demux_nsv_get_stream_length (demux_plugin_t *this_gen) {
+
+ return 0;
+}
+
+static uint32_t demux_nsv_get_capabilities(demux_plugin_t *this_gen) {
+ return DEMUX_CAP_NOCAP;
+}
+
+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_gen;
+ demux_nsv_t *this;
+
+ this = xine_xmalloc (sizeof (demux_nsv_t));
+ this->stream = stream;
+ this->input = input;
+
+ this->demux_plugin.send_headers = demux_nsv_send_headers;
+ this->demux_plugin.send_chunk = demux_nsv_send_chunk;
+ this->demux_plugin.seek = demux_nsv_seek;
+ this->demux_plugin.dispose = demux_nsv_dispose;
+ this->demux_plugin.get_status = demux_nsv_get_status;
+ this->demux_plugin.get_stream_length = demux_nsv_get_stream_length;
+ this->demux_plugin.get_video_frame = NULL;
+ this->demux_plugin.got_video_frame_cb= NULL;
+ this->demux_plugin.get_capabilities = demux_nsv_get_capabilities;
+ this->demux_plugin.get_optional_data = demux_nsv_get_optional_data;
+ this->demux_plugin.demux_class = class_gen;
+
+ this->status = DEMUX_FINISHED;
+
+ 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;
+
+ mrl = input->get_mrl (input);
+
+ ending = strrchr(mrl, '.');
+
+ if (!ending) {
+ free (this);
+ return NULL;
+ }
+
+ if (strncasecmp (ending, ".nsv", 4)) {
+ free (this);
+ return NULL;
+ }
+
+ if (!open_nsv_file(this)) {
+ free (this);
+ return NULL;
+ }
+
+ }
+
+ break;
+
+ default:
+ free (this);
+ return NULL;
+ }
+
+ strncpy (this->last_mrl, input->get_mrl (input), 1024);
+
+ return &this->demux_plugin;
+}
+
+static char *get_description (demux_class_t *this_gen) {
+ return "Nullsoft Video demux plugin";
+}
+
+static char *get_identifier (demux_class_t *this_gen) {
+ return "Nullsoft NSV";
+}
+
+static char *get_extensions (demux_class_t *this_gen) {
+ return "nsv";
+}
+
+static char *get_mimetypes (demux_class_t *this_gen) {
+ return NULL;
+}
+
+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->demux_class.open_plugin = open_plugin;
+ this->demux_class.get_description = get_description;
+ this->demux_class.get_identifier = get_identifier;
+ this->demux_class.get_mimetypes = get_mimetypes;
+ this->demux_class.get_extensions = get_extensions;
+ this->demux_class.dispose = class_dispose;
+
+ return this;
+}
+
+/*
+ * exported plugin catalog entry
+ */
+
+plugin_info_t xine_plugin_info[] = {
+ /* type, API, "name", version, special_info, init_function */
+ { PLUGIN_DEMUX, 21, "nsv", XINE_VERSION_CODE, NULL, demux_nsv_init_plugin },
+ { PLUGIN_NONE, 0, "", 0, NULL, NULL }
+};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-23 08:05:02 +0000