diff options
Diffstat (limited to 'src/demuxers/demux_ipmovie.c')
| -rw-r--r-- | src/demuxers/demux_ipmovie.c | 178 |
1 files changed, 62 insertions, 116 deletions
diff --git a/src/demuxers/demux_ipmovie.c b/src/demuxers/demux_ipmovie.c index 29e1b8f8e..ac3f89bb3 100644 --- a/src/demuxers/demux_ipmovie.c +++ b/src/demuxers/demux_ipmovie.c @@ -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 - * + */ + +/* * Interplay MVE File Demuxer by Mike Melanson (melanson@pcisys.net) * For more information regarding the Interplay MVE file format, visit: * http://www.pcisys.net/~melanson/codecs/ * - * $Id: demux_ipmovie.c,v 1.9 2003/04/26 20:16:09 guenter Exp $ + * $Id: demux_ipmovie.c,v 1.10 2003/07/03 15:45:49 andruil Exp $ */ #ifdef HAVE_CONFIG_H @@ -34,20 +36,17 @@ #include <string.h> #include <stdlib.h> +/********** logging **********/ +#define LOG_MODULE "demux_ipmovie" +/* #define LOG_VERBOSE */ +/* #define LOG */ + #include "xine_internal.h" #include "xineutils.h" #include "compat.h" #include "demux.h" #include "bswap.h" -/* debugging support */ -#define DEBUG_IPMOVIE 0 -#if DEBUG_IPMOVIE -#define debug_ipmovie printf -#else -static inline void debug_ipmovie(const char *format, ...) { } -#endif - #define IPMOVIE_SIGNATURE "Interplay MVE File\x1A\0" #define IPMOVIE_SIGNATURE_SIZE 20 #define CHUNK_PREAMBLE_SIZE 4 @@ -88,23 +87,15 @@ static inline void debug_ipmovie(const char *format, ...) { } #define PALETTE_COUNT 256 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; @@ -119,19 +110,10 @@ typedef struct { unsigned int audio_frame_count; palette_entry_t palette[PALETTE_COUNT]; - - char last_mrl[1024]; - } demux_ipmovie_t; typedef struct { - demux_class_t demux_class; - - /* class-wide, global variables here */ - - xine_t *xine; - config_values_t *config; } demux_ipmovie_class_t; /* This function loads and processes a single chunk in an IP movie file. @@ -160,37 +142,36 @@ static int process_ipmovie_chunk(demux_ipmovie_t *this) { chunk_size = LE_16(&chunk_preamble[0]); chunk_type = LE_16(&chunk_preamble[2]); - debug_ipmovie ("ipmovie: chunk type 0x%04X, 0x%04X bytes: ", - chunk_type, chunk_size); + lprintf("chunk type 0x%04X, 0x%04X bytes:\n", chunk_type, chunk_size); switch (chunk_type) { case CHUNK_INIT_AUDIO: - debug_ipmovie ("initialize audio\n"); + lprintf("initialize audio\n"); break; case CHUNK_AUDIO_ONLY: - debug_ipmovie ("audio only\n"); + lprintf("audio only\n"); break; case CHUNK_INIT_VIDEO: - debug_ipmovie ("initialize video\n"); + lprintf("initialize video\n"); break; case CHUNK_VIDEO: - debug_ipmovie ("video (and audio)\n"); + lprintf("video (and audio)\n"); break; case CHUNK_SHUTDOWN: - debug_ipmovie ("shutdown\n"); + lprintf("shutdown\n"); break; case CHUNK_END: - debug_ipmovie ("end\n"); + lprintf("end\n"); break; default: - debug_ipmovie ("invalid chunk\n"); + lprintf("invalid chunk\n"); chunk_type = CHUNK_BAD; break; @@ -212,28 +193,28 @@ static int process_ipmovie_chunk(demux_ipmovie_t *this) { chunk_size -= OPCODE_PREAMBLE_SIZE; chunk_size -= opcode_size; if (chunk_size < 0) { - printf ("demux_ipmovie: chunk_size countdown just went negative\n"); + lprintf("chunk_size countdown just went negative\n"); chunk_type = CHUNK_BAD; break; } - debug_ipmovie (" opcode type %02X, version %d, 0x%04X bytes: ", + lprintf("opcode type %02X, version %d, 0x%04X bytes:\n", opcode_type, opcode_version, opcode_size); switch (opcode_type) { case OPCODE_END_OF_STREAM: - debug_ipmovie ("end of stream\n"); + lprintf("end of stream\n"); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_END_OF_CHUNK: - debug_ipmovie ("end of chunk\n"); + lprintf("end of chunk\n"); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_CREATE_TIMER: - debug_ipmovie ("create timer\n"); + lprintf("create timer\n"); if ((opcode_version > 0) || (opcode_size > 6)) { - printf ("demux_ipmovie: bad create_timer opcode\n"); + lprintf("bad create_timer opcode\n"); chunk_type = CHUNK_BAD; break; } @@ -243,16 +224,16 @@ static int process_ipmovie_chunk(demux_ipmovie_t *this) { break; } this->fps = 1000000 / (LE_32(&scratch[0]) * LE_16(&scratch[4])); -this->fps++; /* above calculation usually yields 14.9; we need 15 */ + this->fps++; /* above calculation usually yields 14.9; we need 15 */ this->frame_pts_inc = 90000 / this->fps; - debug_ipmovie (" %d frames/second (timer div = %d, subdiv = %d)\n", + lprintf("%d frames/second (timer div = %d, subdiv = %d)\n", this->fps, LE_32(&scratch[0]), LE_16(&scratch[4])); break; case OPCODE_INIT_AUDIO_BUFFERS: - debug_ipmovie ("initialize audio buffers\n"); + lprintf("initialize audio buffers\n"); if ((opcode_version > 1) || (opcode_size > 10)) { - printf ("demux_ipmovie: bad init_audio_buffers opcode\n"); + lprintf("bad init_audio_buffers opcode\n"); chunk_type = CHUNK_BAD; break; } @@ -272,7 +253,7 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ this->audio_type = BUF_AUDIO_INTERPLAY; else this->audio_type = BUF_AUDIO_LPCM_LE; - debug_ipmovie (" audio: %d bits, %d Hz, %s, %s format\n", + lprintf("audio: %d bits, %d Hz, %s, %s format\n", this->audio_bits, this->audio_sample_rate, (this->audio_channels == 2) ? "stereo" : "mono", @@ -280,14 +261,14 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ break; case OPCODE_START_STOP_AUDIO: - debug_ipmovie ("start/stop audio\n"); + lprintf("start/stop audio\n"); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_INIT_VIDEO_BUFFERS: - debug_ipmovie ("initialize video buffers\n"); + lprintf("initialize video buffers\n"); if ((opcode_version > 2) || (opcode_size > 8)) { - printf ("demux_ipmovie: bad init_video_buffers opcode\n"); + lprintf("bad init_video_buffers opcode\n"); chunk_type = CHUNK_BAD; break; } @@ -298,7 +279,7 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ } this->video_width = LE_16(&scratch[0]) * 8; this->video_height = LE_16(&scratch[2]) * 8; - debug_ipmovie (" video resolution: %d x %d\n", + lprintf("video resolution: %d x %d\n", this->video_width, this->video_height); break; @@ -309,17 +290,17 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ case OPCODE_UNKNOWN_13: case OPCODE_UNKNOWN_14: case OPCODE_UNKNOWN_15: - debug_ipmovie ("unknown (but documented) opcode %02X\n", opcode_type); + lprintf("unknown (but documented) opcode %02X\n", opcode_type); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_SEND_BUFFER: - debug_ipmovie ("send buffer\n"); + lprintf("send buffer\n"); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_AUDIO_FRAME: - debug_ipmovie ("audio frame\n"); + lprintf("audio frame\n"); current_file_pos = this->input->get_current_pos(this->input); @@ -334,7 +315,7 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ audio_pts *= this->audio_frame_count; audio_pts /= this->audio_sample_rate; - debug_ipmovie (" sending audio frame with pts %lld (%d audio frames)\n", + lprintf("sending audio frame with pts %lld (%d audio frames)\n", audio_pts, this->audio_frame_count); if(this->audio_fifo) { @@ -370,26 +351,26 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ break; case OPCODE_SILENCE_FRAME: - debug_ipmovie ("silence frame\n"); + lprintf("silence frame\n"); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_INIT_VIDEO_MODE: - debug_ipmovie ("initialize video mode\n"); + lprintf("initialize video mode\n"); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_CREATE_GRADIENT: - debug_ipmovie ("create gradient\n"); + lprintf("create gradient\n"); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_SET_PALETTE: - debug_ipmovie ("set palette\n"); + lprintf("set palette\n"); /* check for the logical maximum palette size * (3 * 256 + 4 bytes) */ if (opcode_size > 0x304) { - printf ("demux_ipmovie: set_palette opcode too large\n"); + lprintf("demux_ipmovie: set_palette opcode too large\n"); chunk_type = CHUNK_BAD; break; } @@ -404,7 +385,7 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ last_color = LE_16(&scratch[2]); /* sanity check (since they are 16 bit values) */ if ((first_color > 0xFF) || (last_color > 0xFF)) { - printf ("demux_ipmovie: set_palette indices out of range (%d -> %d)\n", + lprintf("demux_ipmovie: set_palette indices out of range (%d -> %d)\n", first_color, last_color); chunk_type = CHUNK_BAD; break; @@ -418,15 +399,15 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ break; case OPCODE_SET_PALETTE_COMPRESSED: - debug_ipmovie ("set palette compressed\n"); + lprintf("set palette compressed\n"); this->input->seek(this->input, opcode_size, SEEK_CUR); break; case OPCODE_SET_DECODING_MAP: - debug_ipmovie ("set decoding map\n"); + lprintf("set decoding map\n"); current_file_pos = this->input->get_current_pos(this->input); - debug_ipmovie (" sending decoding map along with duration %d\n", + lprintf("sending decoding map along with duration %d\n", this->frame_pts_inc); while (opcode_size) { @@ -463,10 +444,10 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ break; case OPCODE_VIDEO_DATA: - debug_ipmovie ("set video data\n"); + lprintf("set video data\n"); current_file_pos = this->input->get_current_pos(this->input); - debug_ipmovie (" sending video data with pts %lld\n", + lprintf("sending video data with pts %lld\n", this->video_pts); while (opcode_size) { @@ -507,7 +488,7 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ break; default: - debug_ipmovie (" *** unknown opcode type\n"); + lprintf("*** unknown opcode type\n"); chunk_type = CHUNK_BAD; break; @@ -522,34 +503,18 @@ this->fps++; /* above calculation usually yields 14.9; we need 15 */ static int open_ipmovie_file(demux_ipmovie_t *this) { unsigned char signature[IPMOVIE_SIGNATURE_SIZE]; - unsigned char preview[MAX_PREVIEW_SIZE]; this->audio_type = 0; - if (this->input->get_capabilities(this->input) & INPUT_CAP_SEEKABLE) { - this->input->seek(this->input, 0, SEEK_SET); - if (this->input->read(this->input, signature, IPMOVIE_SIGNATURE_SIZE) != + if (xine_demux_read_header(this->input, signature, IPMOVIE_SIGNATURE_SIZE) != IPMOVIE_SIGNATURE_SIZE) - return 0; - } else { - this->input->get_optional_data(this->input, preview, - INPUT_OPTIONAL_DATA_PREVIEW); - - /* copy over the header bytes for processing */ - memcpy(signature, preview, IPMOVIE_SIGNATURE_SIZE); - } + return 0; if (strncmp(signature, IPMOVIE_SIGNATURE, IPMOVIE_SIGNATURE_SIZE) != 0) return 0; - /* file is qualified; if the input was not seekable, skip over the - * signature bytes in the stream */ - if ((this->input->get_capabilities(this->input) & INPUT_CAP_SEEKABLE) == 0) { - this->input->seek(this->input, IPMOVIE_SIGNATURE_SIZE, SEEK_SET); - } - - /* skip the 6 unknown bytes */ - this->input->seek(this->input, 6, SEEK_CUR); + /* file is qualified; skip over the signature bytes (+ 6 unknown) in the stream */ + this->input->seek(this->input, IPMOVIE_SIGNATURE_SIZE+6, SEEK_SET); /* process the first chunk which should be CHUNK_INIT_VIDEO */ if (process_ipmovie_chunk(this) != CHUNK_INIT_VIDEO) @@ -559,7 +524,7 @@ static int open_ipmovie_file(demux_ipmovie_t *this) { if (process_ipmovie_chunk(this) != CHUNK_INIT_AUDIO) return 0; - debug_ipmovie ("detected Interplay MVE file\n"); + lprintf("detected Interplay MVE file\n"); this->data_size = this->input->get_length(this->input); this->audio_frame_count = 0; this->video_pts = 0; @@ -680,9 +645,8 @@ static int demux_ipmovie_get_optional_data(demux_plugin_t *this_gen, } 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_ipmovie_t *this; this = xine_xmalloc (sizeof (demux_ipmovie_t)); @@ -705,41 +669,27 @@ 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_ipmovie_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, ".mve", 4)) && - (strncasecmp (ending, ".mv8", 4))) { - free (this); - return NULL; - } + case METHOD_BY_CONTENT: + case METHOD_EXPLICIT: if (!open_ipmovie_file(this)) { free (this); return NULL; } - } - break; default: @@ -747,8 +697,6 @@ 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; } @@ -780,8 +728,6 @@ void *demux_ipmovie_init_plugin (xine_t *xine, void *data) { demux_ipmovie_class_t *this; this = xine_xmalloc (sizeof (demux_ipmovie_class_t)); - this->config = xine->config; - this->xine = xine; this->demux_class.open_plugin = open_plugin; this->demux_class.get_description = get_description; |