diff options
Diffstat (limited to 'gst-libs/gst/riff')
| -rw-r--r-- | gst-libs/gst/riff/Makefile.am | 11 | ||||
| -rw-r--r-- | gst-libs/gst/riff/riff.c | 226 | ||||
| -rw-r--r-- | gst-libs/gst/riff/riff.h | 406 | ||||
| -rw-r--r-- | gst-libs/gst/riff/riffencode.c | 177 | ||||
| -rw-r--r-- | gst-libs/gst/riff/riffparse.c | 221 | ||||
| -rw-r--r-- | gst-libs/gst/riff/riffutil.c | 46 |
6 files changed, 1087 insertions, 0 deletions
diff --git a/gst-libs/gst/riff/Makefile.am b/gst-libs/gst/riff/Makefile.am new file mode 100644 index 00000000..ba4a17ba --- /dev/null +++ b/gst-libs/gst/riff/Makefile.am @@ -0,0 +1,11 @@ +libdir = $(prefix)/lib/gst + +lib_LTLIBRARIES = libgstriff.la + +libgstriff_la_SOURCES = riffparse.c riffencode.c riffutil.c + +libgstriffincludedir = $(includedir)/gst/riff +libgstriffinclude_HEADERS = riff.h + +libgstriff_la_LIBADD = $(GST_LIBS) +libgstriff_la_CFLAGS = $(GST_CFLAGS) -funroll-all-loops -finline-functions -ffast-math diff --git a/gst-libs/gst/riff/riff.c b/gst-libs/gst/riff/riff.c new file mode 100644 index 00000000..e0bb7293 --- /dev/null +++ b/gst-libs/gst/riff/riff.c @@ -0,0 +1,226 @@ +/* Gnome-Streamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + + +#include <riff.h> + +//#define debug(format,args...) g_print(format,##args) +#define debug(format,args...) + + +GstRiff *gst_riff_new(GstRiffCallback function, gpointer data) { + GstRiff *riff; + + riff = (GstRiff *)g_malloc(sizeof(GstRiff)); + g_return_val_if_fail(riff != NULL, NULL); + + riff->form = 0; + riff->chunks = NULL; + riff->state = 0; + riff->curoffset = 0; + riff->nextlikely = 0; + riff->new_tag_found = function; + riff->callback_data = data; + riff->incomplete_chunk = NULL; + riff->dataleft = NULL; + + return riff; +} + +gint gst_riff_next_buffer(GstRiff *riff,GstBuffer *buf,gulong off) { + gulong last, size; + GstRiffChunk *chunk; + + g_return_val_if_fail (riff != NULL, GST_RIFF_EINVAL); + g_return_val_if_fail (buf != NULL, GST_RIFF_EINVAL); + g_return_val_if_fail (GST_BUFFER_DATA(buf) != NULL, GST_RIFF_EINVAL); + + size = GST_BUFFER_SIZE(buf); + last = off + size; + + debug("offset new buffer 0x%08lx size 0x%08x\n", off, GST_BUFFER_SIZE(buf)); + + if (riff->dataleft) { + gulong newsize; + + debug("recovering left data\n"); + newsize = riff->dataleft_size + size; + riff->dataleft = g_realloc(riff->dataleft, newsize); + memcpy (riff->dataleft+riff->dataleft_size, GST_BUFFER_DATA(buf), size); + gst_buffer_unref (buf); + + buf = gst_buffer_new (); + GST_BUFFER_DATA(buf) = riff->dataleft; + GST_BUFFER_SIZE(buf) = newsize; + off -= riff->dataleft_size; + //last -= riff->dataleft_size; + riff->dataleft = NULL; + } + + if (off == 0) { + guint32 *words = (guin32 *)GST_BUFFER_DATA(buf); + + // don't even try to parse the head if it's not there FIXME + if (last < 12) { + riff->state = GST_RIFF_ENOTRIFF; + return riff->state; + } + + //g_print("testing is 0x%08lx '%s'\n",words[0],gst_riff_id_to_fourcc(words[0])); + /* verify this is a valid RIFF file, first of all */ + if (GUINT32_FROM_LE (words[0]) != GST_RIFF_TAG_RIFF) { + riff->state = GST_RIFF_ENOTRIFF; + return riff->state; + } + riff->form = GUINT32_FROM_LE (words[2]); + //g_print("form is 0x%08lx '%s'\n",words[2],gst_riff_id_to_fourcc(words[2])); + riff->nextlikely = 12; /* skip 'RIFF', length, and form */ + // all OK here + riff->incomplete_chunk = NULL; + } + + // if we have an incomplete chunk from the previous buffer + if (riff->incomplete_chunk) { + guint leftover; + debug("have incomplete chunk %08x filled\n", riff->incomplete_chunk_size); + leftover = riff->incomplete_chunk->size - riff->incomplete_chunk_size; + if (leftover <= size) { + debug("we can fill it from %08x with %08x bytes = %08x\n", riff->incomplete_chunk_size, leftover, riff->incomplete_chunk_size+leftover); + memcpy(riff->incomplete_chunk->data+riff->incomplete_chunk_size, GST_BUFFER_DATA(buf), leftover); + + if (riff->new_tag_found) { + riff->new_tag_found(riff->incomplete_chunk, riff->callback_data); + } + g_free(riff->incomplete_chunk->data); + g_free(riff->incomplete_chunk); + riff->incomplete_chunk = NULL; + } + else { + debug("we cannot fill it %08x >= %08lx\n", leftover, size); + memcpy(riff->incomplete_chunk->data+riff->incomplete_chunk_size, GST_BUFFER_DATA(buf), size); + riff->incomplete_chunk_size += size; + return 0; + } + } + + if ((riff->nextlikely+12) > last) { + guint left = last - riff->nextlikely; + debug("not enough data next 0x%08x last 0x%08lx %08x %08x\n",riff->nextlikely, last, left, off); + + riff->dataleft = g_malloc(left); + riff->dataleft_size = left; + memcpy(riff->dataleft, GST_BUFFER_DATA(buf)+size-left, left); + + return 0; + } + + debug("next 0x%08x last 0x%08lx offset %08x\n",riff->nextlikely, last, off); + /* loop while the next likely chunk header is in this buffer */ + while ((riff->nextlikely+12) <= last) { + guin32 *words = (guin32 *)((guchar *)GST_BUFFER_DATA(buf) + riff->nextlikely - off ); + + // loop over all of the chunks to check which one is finished + while (riff->chunks) { + chunk = g_list_nth_data(riff->chunks, 0); + + debug("next 0x%08x offset 0x%08lx size 0x%08x\n",riff->nextlikely, chunk->offset, chunk->size); + if (riff->nextlikely >= chunk->offset+chunk->size) { + //g_print("found END LIST\n"); + // we have the end of the chunk on the stack, remove it + riff->chunks = g_list_remove(riff->chunks, chunk); + } + else break; + } + + debug("next likely chunk is at offset 0x%08x\n",riff->nextlikely); + + chunk = (GstRiffChunk *)g_malloc (sizeof (GstRiffChunk)); + g_return_val_if_fail (chunk != NULL, GST_RIFF_ENOMEM); + + chunk->offset = riff->nextlikely+8; /* point to the actual data */ + chunk->id = GUINT32_FROM_LE (words[0])); + chunk->size = GUINT32_FROM_LE (words[1]); + chunk->data = (gchar *)(words+2); + // we need word alignment + //if (chunk->size & 0x01) chunk->size++; + chunk->form = GUINT32_FROM_LE (words[2]); /* fill in the form, might not be valid */ + + + if (chunk->id == GST_RIFF_TAG_LIST) { + //g_print("found LIST %s\n", gst_riff_id_to_fourcc(chunk->form)); + riff->nextlikely += 12; + // we push the list chunk on our 'stack' + riff->chunks = g_list_prepend(riff->chunks,chunk); + // send the buffer to the listener if we have received a function + if (riff->new_tag_found) { + riff->new_tag_found(chunk, riff->callback_data); + } + } + else { + + debug("chunk id offset %08x is 0x%08lx '%s' and is 0x%08lx long\n",riff->nextlikely, words[0], + gst_riff_id_to_fourcc(GUINT32_FROM_LE (words[0])), GUINT32_FROM_LE (words[1])); + + riff->nextlikely += 8 + chunk->size; /* doesn't include hdr */ + // if this buffer is incomplete + if (riff->nextlikely > last) { + guint left = size - (riff->nextlikely - chunk->size - off); + + //g_print("make incomplete buffer %08x\n", left); + chunk->data = g_malloc(chunk->size); + memcpy(chunk->data, (gchar *)(words+2), left); + riff->incomplete_chunk = chunk; + riff->incomplete_chunk_size = left; + } + else { + // send the buffer to the listener if we have received a function + if (riff->new_tag_found) { + riff->new_tag_found(chunk, riff->callback_data); + } + g_free(chunk); + } + + //riff->chunks = g_list_prepend(riff->chunks,chunk); + } + } + + return 0; +} + + +gulong gst_riff_fourcc_to_id(gchar *fourcc) { + g_return_val_if_fail(fourcc != NULL, 0); + + return (fourcc[0] << 0) | (fourcc[1] << 8) | + (fourcc[2] << 16) | (fourcc[3] << 24); +} + +gchar *gst_riff_id_to_fourcc(gulong id) { + gchar *fourcc = (gchar *)g_malloc(5); + + g_return_val_if_fail(fourcc != NULL, NULL); + + fourcc[0] = (id >> 0) & 0xff; + fourcc[1] = (id >> 8) & 0xff; + fourcc[2] = (id >> 16) & 0xff; + fourcc[3] = (id >> 24) & 0xff; + fourcc[4] = 0; + + return fourcc; +} diff --git a/gst-libs/gst/riff/riff.h b/gst-libs/gst/riff/riff.h new file mode 100644 index 00000000..f0e55895 --- /dev/null +++ b/gst-libs/gst/riff/riff.h @@ -0,0 +1,406 @@ +/* Gnome-Streamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + + +#ifndef __GST_RIFF_H__ +#define __GST_RIFF_H__ + + +#include <gst/gst.h> + +typedef enum { + GST_RIFF_OK = 0, + GST_RIFF_ENOTRIFF = -1, + GST_RIFF_EINVAL = -2, + GST_RIFF_ENOMEM = -3 +} GstRiffReturn; + +/* states */ +typedef enum { + GST_RIFF_STATE_INITIAL = 0, + GST_RIFF_STATE_HASAVIH = 1, + GST_RIFF_STATE_HASSTRH = 2, + GST_RIFF_STATE_HASSTRF = 3, + GST_RIFF_STATE_MOVI = 4 +} GstRiffParserState; + +#define MAKE_FOUR_CC(a,b,c,d) ( ((guint32)a) | (((guint32)b)<< 8) | \ + ((guint32)c)<<16 | (((guint32)d)<<24) ) + +/* RIFF types */ +#define GST_RIFF_RIFF_WAVE MAKE_FOUR_CC('W','A','V','E') +#define GST_RIFF_RIFF_AVI MAKE_FOUR_CC('A','V','I',' ') + +/* tags */ +#define GST_RIFF_TAG_RIFF MAKE_FOUR_CC('R','I','F','F') +#define GST_RIFF_TAG_RIFX MAKE_FOUR_CC('R','I','F','X') +#define GST_RIFF_TAG_LIST MAKE_FOUR_CC('L','I','S','T') +#define GST_RIFF_TAG_avih MAKE_FOUR_CC('a','v','i','h') +#define GST_RIFF_TAG_strd MAKE_FOUR_CC('s','t','r','d') +#define GST_RIFF_TAG_strh MAKE_FOUR_CC('s','t','r','h') +#define GST_RIFF_TAG_strf MAKE_FOUR_CC('s','t','r','f') +#define GST_RIFF_TAG_vedt MAKE_FOUR_CC('v','e','d','t') +#define GST_RIFF_TAG_JUNK MAKE_FOUR_CC('J','U','N','K') +#define GST_RIFF_TAG_idx1 MAKE_FOUR_CC('i','d','x','1') +/* WAV stuff */ +#define GST_RIFF_TAG_fmt MAKE_FOUR_CC('f','m','t',' ') +#define GST_RIFF_TAG_data MAKE_FOUR_CC('d','a','t','a') + +/* LIST types */ +#define GST_RIFF_LIST_movi MAKE_FOUR_CC('m','o','v','i') +#define GST_RIFF_LIST_hdrl MAKE_FOUR_CC('h','d','r','l') +#define GST_RIFF_LIST_strl MAKE_FOUR_CC('s','t','r','l') + +/* fcc types */ +#define GST_RIFF_FCC_vids MAKE_FOUR_CC('v','i','d','s') +#define GST_RIFF_FCC_auds MAKE_FOUR_CC('a','u','d','s') +#define GST_RIFF_FCC_pads MAKE_FOUR_CC('p','a','d','s') +#define GST_RIFF_FCC_txts MAKE_FOUR_CC('t','x','t','s') +#define GST_RIFF_FCC_vidc MAKE_FOUR_CC('v','i','d','c') +#define GST_RIFF_FCC_iavs MAKE_FOUR_CC('i','a','v','s') +/* fcc handlers */ +#define GST_RIFF_FCCH_RLE MAKE_FOUR_CC('R','L','E',' ') +#define GST_RIFF_FCCH_msvc MAKE_FOUR_CC('m','s','v','c') +#define GST_RIFF_FCCH_MSVC MAKE_FOUR_CC('M','S','V','C') + +/*********Chunk Names***************/ +#define GST_RIFF_FF00 MAKE_FOUR_CC(0xFF,0xFF,0x00,0x00) +#define GST_RIFF_00 MAKE_FOUR_CC( '0', '0',0x00,0x00) +#define GST_RIFF_01 MAKE_FOUR_CC( '0', '1',0x00,0x00) +#define GST_RIFF_02 MAKE_FOUR_CC( '0', '2',0x00,0x00) +#define GST_RIFF_03 MAKE_FOUR_CC( '0', '3',0x00,0x00) +#define GST_RIFF_04 MAKE_FOUR_CC( '0', '4',0x00,0x00) +#define GST_RIFF_05 MAKE_FOUR_CC( '0', '5',0x00,0x00) +#define GST_RIFF_06 MAKE_FOUR_CC( '0', '6',0x00,0x00) +#define GST_RIFF_07 MAKE_FOUR_CC( '0', '7',0x00,0x00) +#define GST_RIFF_00pc MAKE_FOUR_CC( '0', '0', 'p', 'c') +#define GST_RIFF_01pc MAKE_FOUR_CC( '0', '1', 'p', 'c') +#define GST_RIFF_00dc MAKE_FOUR_CC( '0', '0', 'd', 'c') +#define GST_RIFF_00dx MAKE_FOUR_CC( '0', '0', 'd', 'x') +#define GST_RIFF_00db MAKE_FOUR_CC( '0', '0', 'd', 'b') +#define GST_RIFF_00xx MAKE_FOUR_CC( '0', '0', 'x', 'x') +#define GST_RIFF_00id MAKE_FOUR_CC( '0', '0', 'i', 'd') +#define GST_RIFF_00rt MAKE_FOUR_CC( '0', '0', 'r', 't') +#define GST_RIFF_0021 MAKE_FOUR_CC( '0', '0', '2', '1') +#define GST_RIFF_00iv MAKE_FOUR_CC( '0', '0', 'i', 'v') +#define GST_RIFF_0031 MAKE_FOUR_CC( '0', '0', '3', '1') +#define GST_RIFF_0032 MAKE_FOUR_CC( '0', '0', '3', '2') +#define GST_RIFF_00vc MAKE_FOUR_CC( '0', '0', 'v', 'c') +#define GST_RIFF_00xm MAKE_FOUR_CC( '0', '0', 'x', 'm') +#define GST_RIFF_01wb MAKE_FOUR_CC( '0', '1', 'w', 'b') +#define GST_RIFF_01dc MAKE_FOUR_CC( '0', '1', 'd', 'c') +#define GST_RIFF_00__ MAKE_FOUR_CC( '0', '0', '_', '_') + +/*********VIDEO CODECS**************/ +#define GST_RIFF_cram MAKE_FOUR_CC( 'c', 'r', 'a', 'm') +#define GST_RIFF_CRAM MAKE_FOUR_CC( 'C', 'R', 'A', 'M') +#define GST_RIFF_wham MAKE_FOUR_CC( 'w', 'h', 'a', 'm') +#define GST_RIFF_WHAM MAKE_FOUR_CC( 'W', 'H', 'A', 'M') +#define GST_RIFF_rgb MAKE_FOUR_CC(0x00,0x00,0x00,0x00) +#define GST_RIFF_RGB MAKE_FOUR_CC( 'R', 'G', 'B', ' ') +#define GST_RIFF_rle8 MAKE_FOUR_CC(0x01,0x00,0x00,0x00) +#define GST_RIFF_RLE8 MAKE_FOUR_CC( 'R', 'L', 'E', '8') +#define GST_RIFF_rle4 MAKE_FOUR_CC(0x02,0x00,0x00,0x00) +#define GST_RIFF_RLE4 MAKE_FOUR_CC( 'R', 'L', 'E', '4') +#define GST_RIFF_none MAKE_FOUR_CC(0x00,0x00,0xFF,0xFF) +#define GST_RIFF_NONE MAKE_FOUR_CC( 'N', 'O', 'N', 'E') +#define GST_RIFF_pack MAKE_FOUR_CC(0x01,0x00,0xFF,0xFF) +#define GST_RIFF_PACK MAKE_FOUR_CC( 'P', 'A', 'C', 'K') +#define GST_RIFF_tran MAKE_FOUR_CC(0x02,0x00,0xFF,0xFF) +#define GST_RIFF_TRAN MAKE_FOUR_CC( 'T', 'R', 'A', 'N') +#define GST_RIFF_ccc MAKE_FOUR_CC(0x03,0x00,0xFF,0xFF) +#define GST_RIFF_CCC MAKE_FOUR_CC( 'C', 'C', 'C', ' ') +#define GST_RIFF_cyuv MAKE_FOUR_CC( 'c', 'y', 'u', 'v') +#define GST_RIFF_CYUV MAKE_FOUR_CC( 'C', 'Y', 'U', 'V') +#define GST_RIFF_jpeg MAKE_FOUR_CC(0x04,0x00,0xFF,0xFF) +#define GST_RIFF_JPEG MAKE_FOUR_CC( 'J', 'P', 'E', 'G') +#define GST_RIFF_MJPG MAKE_FOUR_CC( 'M', 'J', 'P', 'G') +#define GST_RIFF_mJPG MAKE_FOUR_CC( 'm', 'J', 'P', 'G') +#define GST_RIFF_IJPG MAKE_FOUR_CC( 'I', 'J', 'P', 'G') +#define GST_RIFF_rt21 MAKE_FOUR_CC( 'r', 't', '2', '1') +#define GST_RIFF_RT21 MAKE_FOUR_CC( 'R', 'T', '2', '1') +#define GST_RIFF_iv31 MAKE_FOUR_CC( 'i', 'v', '3', '1') +#define GST_RIFF_IV31 MAKE_FOUR_CC( 'I', 'V', '3', '1') +#define GST_RIFF_iv32 MAKE_FOUR_CC( 'i', 'v', '3', '2') +#define GST_RIFF_IV32 MAKE_FOUR_CC( 'I', 'V', '3', '2') +#define GST_RIFF_iv41 MAKE_FOUR_CC( 'i', 'v', '4', '1') +#define GST_RIFF_IV41 MAKE_FOUR_CC( 'I', 'V', '4', '1') +#define GST_RIFF_iv50 MAKE_FOUR_CC( 'i', 'v', '5', '0') +#define GST_RIFF_IV50 MAKE_FOUR_CC( 'I', 'V', '5', '0') +#define GST_RIFF_cvid MAKE_FOUR_CC( 'c', 'v', 'i', 'd') +#define GST_RIFF_CVID MAKE_FOUR_CC( 'C', 'V', 'I', 'D') +#define GST_RIFF_ULTI MAKE_FOUR_CC( 'U', 'L', 'T', 'I') +#define GST_RIFF_ulti MAKE_FOUR_CC( 'u', 'l', 't', 'i') +#define GST_RIFF_YUV9 MAKE_FOUR_CC( 'Y', 'V', 'U', '9') +#define GST_RIFF_YVU9 MAKE_FOUR_CC( 'Y', 'U', 'V', '9') +#define GST_RIFF_XMPG MAKE_FOUR_CC( 'X', 'M', 'P', 'G') +#define GST_RIFF_xmpg MAKE_FOUR_CC( 'x', 'm', 'p', 'g') +#define GST_RIFF_VDOW MAKE_FOUR_CC( 'V', 'D', 'O', 'W') +#define GST_RIFF_MVI1 MAKE_FOUR_CC( 'M', 'V', 'I', '1') +#define GST_RIFF_v422 MAKE_FOUR_CC( 'v', '4', '2', '2') +#define GST_RIFF_V422 MAKE_FOUR_CC( 'V', '4', '2', '2') +#define GST_RIFF_mvi1 MAKE_FOUR_CC( 'm', 'v', 'i', '1') +#define GST_RIFF_MPIX MAKE_FOUR_CC(0x04,0x00, 'i', '1') /* MotionPixels munged their id */ +#define GST_RIFF_AURA MAKE_FOUR_CC( 'A', 'U', 'R', 'A') +#define GST_RIFF_DMB1 MAKE_FOUR_CC( 'D', 'M', 'B', '1') +#define GST_RIFF_dmb1 MAKE_FOUR_CC( 'd', 'm', 'b', '1') + +#define GST_RIFF_BW10 MAKE_FOUR_CC( 'B', 'W', '1', '0') +#define GST_RIFF_bw10 MAKE_FOUR_CC( 'b', 'w', '1', '0') + +#define GST_RIFF_yuy2 MAKE_FOUR_CC( 'y', 'u', 'y', '2') +#define GST_RIFF_YUY2 MAKE_FOUR_CC( 'Y', 'U', 'Y', '2') +#define GST_RIFF_YUV8 MAKE_FOUR_CC( 'Y', 'U', 'V', '8') +#define GST_RIFF_WINX MAKE_FOUR_CC( 'W', 'I', 'N', 'X') +#define GST_RIFF_WPY2 MAKE_FOUR_CC( 'W', 'P', 'Y', '2') +#define GST_RIFF_m263 MAKE_FOUR_CC( 'm', '2', '6', '3') +#define GST_RIFF_M263 MAKE_FOUR_CC( 'M', '2', '6', '3') + +#define GST_RIFF_Q1_0 MAKE_FOUR_CC( 'Q', '1',0x2e, '0') +#define GST_RIFF_SFMC MAKE_FOUR_CC( 'S', 'F', 'M', 'C') + +#define GST_RIFF_y41p MAKE_FOUR_CC( 'y', '4', '1', 'p') +#define GST_RIFF_Y41P MAKE_FOUR_CC( 'Y', '4', '1', 'P') +#define GST_RIFF_yv12 MAKE_FOUR_CC( 'y', 'v', '1', '2') +#define GST_RIFF_YV12 MAKE_FOUR_CC( 'Y', 'V', '1', '2') +#define GST_RIFF_vixl MAKE_FOUR_CC( 'v', 'i', 'x', 'l') +#define GST_RIFF_VIXL MAKE_FOUR_CC( 'V', 'I', 'X', 'L') +#define GST_RIFF_iyuv MAKE_FOUR_CC( 'i', 'y', 'u', 'v') +#define GST_RIFF_IYUV MAKE_FOUR_CC( 'I', 'Y', 'U', 'V') +#define GST_RIFF_i420 MAKE_FOUR_CC( 'i', '4', '2', '0') +#define GST_RIFF_I420 MAKE_FOUR_CC( 'I', '4', '2', '0') +#define GST_RIFF_vyuy MAKE_FOUR_CC( 'v', 'y', 'u', 'y') +#define GST_RIFF_VYUY MAKE_FOUR_CC( 'V', 'Y', 'U', 'Y') + +#define GST_RIFF_DIV3 MAKE_FOUR_CC( 'D', 'I', 'V', '3') + +#define GST_RIFF_rpza MAKE_FOUR_CC( 'r', 'p', 'z', 'a') +/* And this here's the mistakes that need to be supported */ +#define GST_RIFF_azpr MAKE_FOUR_CC( 'a', 'z', 'p', 'r') /* recognize Apple's rpza mangled? */ + +/*********** FND in MJPG **********/ +#define GST_RIFF_ISFT MAKE_FOUR_CC( 'I', 'S', 'F', 'T') +#define GST_RIFF_IDIT MAKE_FOUR_CC( 'I', 'D', 'I', 'T') + +#define GST_RIFF_00AM MAKE_FOUR_CC( '0', '0', 'A', 'M') +#define GST_RIFF_DISP MAKE_FOUR_CC( 'D', 'I', 'S', 'P') +#define GST_RIFF_ISBJ MAKE_FOUR_CC( 'I', 'S', 'B', 'J') + +#define GST_RIFF_rec MAKE_FOUR_CC( 'r', 'e', 'c', ' ') + +/* common data structures */ +struct _gst_riff_avih { + guint32 us_frame; /* microsec per frame */ + guint32 max_bps; /* byte/s overall */ + guint32 pad_gran; /* pad_gran (???) */ + guint32 flags; +/* flags values */ +#define GST_RIFF_AVIH_HASINDEX 0x00000010 /* has idx1 chunk */ +#define GST_RIFF_AVIH_MUSTUSEINDEX 0x00000020 /* must use idx1 chunk to determine order */ +#define GST_RIFF_AVIH_ISINTERLEAVED 0x00000100 /* AVI file is interleaved */ +#define GST_RIFF_AVIH_WASCAPTUREFILE 0x00010000 /* specially allocated used for capturing real time video */ +#define GST_RIFF_AVIH_COPYRIGHTED 0x00020000 /* contains copyrighted data */ + guint32 tot_frames; /* # of frames (all) */ + guint32 init_frames; /* initial frames (???) */ + guint32 streams; + guint32 bufsize; /* suggested buffer size */ + guint32 width; + guint32 height; + guint32 scale; + guint32 rate; + guint32 start; + guint32 length; +}; + +struct _gst_riff_strh { + guint32 type; /* stream type */ + guint32 fcc_handler; /* fcc_handler */ + guint32 flags; +/* flags values */ +#define GST_RIFF_STRH_DISABLED 0x000000001 +#define GST_RIFF_STRH_VIDEOPALCHANGES 0x000010000 + guint32 priority; + guint32 init_frames; /* initial frames (???) */ + guint32 scale; + guint32 rate; + guint32 start; + guint32 length; + guint32 bufsize; /* suggested buffer size */ + guint32 quality; + guint32 samplesize; + /* XXX 16 bytes ? */ +}; + +struct _gst_riff_strf_vids { /* == BitMapInfoHeader */ + guint32 size; + guint32 width; + guint32 height; + guint16 planes; + guint16 bit_cnt; + guint32 compression; + guint32 image_size; + guint32 xpels_meter; + guint32 ypels_meter; + guint32 num_colors; /* used colors */ + guint32 imp_colors; /* important colors */ + /* may be more for some codecs */ +}; + + +struct _gst_riff_strf_auds { /* == WaveHeader (?) */ + guint16 format; +/**** from public Microsoft RIFF docs ******/ +#define GST_RIFF_WAVE_FORMAT_UNKNOWN (0x0000) +#define GST_RIFF_WAVE_FORMAT_PCM (0x0001) +#define GST_RIFF_WAVE_FORMAT_ADPCM (0x0002) +#define GST_RIFF_WAVE_FORMAT_IBM_CVSD (0x0005) +#define GST_RIFF_WAVE_FORMAT_ALAW (0x0006) +#define GST_RIFF_WAVE_FORMAT_MULAW (0x0007) +#define GST_RIFF_WAVE_FORMAT_OKI_ADPCM (0x0010) +#define GST_RIFF_WAVE_FORMAT_DVI_ADPCM (0x0011) +#define GST_RIFF_WAVE_FORMAT_DIGISTD (0x0015) +#define GST_RIFF_WAVE_FORMAT_DIGIFIX (0x0016) +#define GST_RIFF_WAVE_FORMAT_YAMAHA_ADPCM (0x0020) +#define GST_RIFF_WAVE_FORMAT_DSP_TRUESPEECH (0x0022) +#define GST_RIFF_WAVE_FORMAT_GSM610 (0x0031) +#define GST_RIFF_WAVE_FORMAT_MSN (0x0032) +#define GST_RIFF_WAVE_FORMAT_MPEGL12 (0x0050) +#define GST_RIFF_WAVE_FORMAT_MPEGL3 (0x0055) +#define GST_RIFF_IBM_FORMAT_MULAW (0x0101) +#define GST_RIFF_IBM_FORMAT_ALAW (0x0102) +#define GST_RIFF_IBM_FORMAT_ADPCM (0x0103) +#define GST_RIFF_WAVE_FORMAT_DIVX (0x0160) +#define GST_RIFF_WAVE_FORMAT_divx (0x0161) + guint16 channels; + guint32 rate; + guint32 av_bps; + guint16 blockalign; + guint16 size; +}; + +struct _gst_riff_strf_iavs { + guint32 DVAAuxSrc; + guint32 DVAAuxCtl; + guint32 DVAAuxSrc1; + guint32 DVAAuxCtl1; + guint32 DVVAuxSrc; + guint32 DVVAuxCtl; + guint32 DVReserved1; + guint32 DVReserved2; +}; + +struct _gst_riff_riff { + guint32 id; + guint32 size; + guint32 type; +}; + +struct _gst_riff_list { + guint32 id; + guint32 size; + guint32 type; +}; + +struct _gst_riff_chunk { + guint32 id; + guint32 size; +}; + +struct _gst_riff_index_entry { + guint32 id; + guint32 flags; +#define GST_RIFF_IF_LIST (0x00000001L) +#define GST_RIFF_IF_KEYFRAME (0x00000010L) +#define GST_RIFF_IF_NO_TIME (0x00000100L) +#define GST_RIFF_IF_COMPUSE (0x0FFF0000L) + guint32 offset; + guint32 size; +}; + +typedef struct _gst_riff_riff gst_riff_riff; +typedef struct _gst_riff_list gst_riff_list; +typedef struct _gst_riff_chunk gst_riff_chunk; +typedef struct _gst_riff_index_entry gst_riff_index_entry; + +typedef struct _gst_riff_avih gst_riff_avih; +typedef struct _gst_riff_strh gst_riff_strh; +typedef struct _gst_riff_strf_vids gst_riff_strf_vids; +typedef struct _gst_riff_strf_auds gst_riff_strf_auds; +typedef struct _gst_riff_strf_iavs gst_riff_strf_iavs; +typedef struct _GstRiff GstRiff; +typedef struct _GstRiffChunk GstRiffChunk; + +typedef void (*GstRiffCallback) (GstRiffChunk *chunk, gpointer data); + +struct _GstRiff { + guint32 form; + + /* list of chunks, most recent at the head */ + GList *chunks; + + /* incomplete chunks are assembled here */ + GstRiffChunk *incomplete_chunk; + guint32 incomplete_chunk_size; + /* parse state */ + GstRiffParserState state; + guint32 curoffset; + guint32 nextlikely; + /* leftover data */ + guchar *dataleft; + guint32 dataleft_size; + + /* callback function and data pointer */ + GstRiffCallback new_tag_found; + gpointer callback_data; +}; + +struct _GstRiffChunk { + gulong offset; + + guint32 id; + guint32 size; + guint32 form; /* for list chunks */ + + gchar *data; +}; + + +/* from gstriffparse.c */ +GstRiff* gst_riff_parser_new (GstRiffCallback function, gpointer data); +GstRiffReturn gst_riff_parser_next_buffer (GstRiff *riff, GstBuffer *buf, gulong off); +void gst_riff_parser_resync (GstRiff *riff, gulong offset); + +/* from gstriffencode.c */ +GstRiff* gst_riff_encoder_new (guint32 type); +GstRiffReturn gst_riff_encoder_avih (GstRiff *riff, gst_riff_avih *head, gulong size); +GstRiffReturn gst_riff_encoder_strh (GstRiff *riff, guint32 fcc_type, + gst_riff_strh *head, gulong size); +GstRiffReturn gst_riff_encoder_strf (GstRiff *riff, void *format, gulong size); +GstRiffReturn gst_riff_encoder_chunk (GstRiff *riff, guint32 chunk_type, + void *chunk, gulong size); + +GstBuffer* gst_riff_encoder_get_buffer (GstRiff *riff); +GstBuffer* gst_riff_encoder_get_and_reset_buffer (GstRiff *riff); + +/* from gstriffutil.c */ +gulong gst_riff_fourcc_to_id (gchar *fourcc); +gchar* gst_riff_id_to_fourcc (gulong id); + + +#endif /* __GST_RIFF_H__ */ diff --git a/gst-libs/gst/riff/riffencode.c b/gst-libs/gst/riff/riffencode.c new file mode 100644 index 00000000..a6caed9e --- /dev/null +++ b/gst-libs/gst/riff/riffencode.c @@ -0,0 +1,177 @@ +/* Gnome-Streamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <string.h> + +//#define DEBUG_ENABLED +#include "riff.h" + +#define GST_RIFF_ENCODER_BUF_SIZE 1024 + +#define ADD_CHUNK(riffenc, chunkid, chunksize) \ +{ \ + gst_riff_chunk *chunk;\ + chunk = (gst_riff_chunk *)(riffenc->dataleft + riffenc->nextlikely);\ + chunk->id = chunkid; \ + chunk->size = chunksize; \ + riffenc->nextlikely += sizeof(gst_riff_chunk); \ +} + +#define ADD_LIST(riffenc, listsize, listtype) \ +{ \ + gst_riff_list *list;\ + list = (gst_riff_list *)(riffenc->dataleft + riffenc->nextlikely); \ + list->id = GST_RIFF_TAG_LIST; \ + list->size = listsize; \ + list->type = listtype; \ + riffenc->nextlikely += sizeof(gst_riff_list); \ +} + + +GstRiff *gst_riff_encoder_new(guint32 type) { + GstRiff *riff; + gst_riff_list *list; + + GST_DEBUG (0,"gst_riff_encoder: making %4.4s encoder\n", (char *)&type); + riff = (GstRiff *)g_malloc(sizeof(GstRiff)); + g_return_val_if_fail(riff != NULL, NULL); + + riff->form = 0; + riff->chunks = NULL; + riff->state = GST_RIFF_STATE_INITIAL; + riff->curoffset = 0; + riff->incomplete_chunk = NULL; + riff->dataleft = g_malloc(GST_RIFF_ENCODER_BUF_SIZE); + riff->dataleft_size = GST_RIFF_ENCODER_BUF_SIZE; + riff->nextlikely = 0; + + list = (gst_riff_list *)riff->dataleft; + list->id = GST_RIFF_TAG_RIFF; + list->size = 0x00FFFFFF; + list->type = GST_RIFF_RIFF_AVI; + + riff->nextlikely += sizeof(gst_riff_list); + + return riff; +} + +gint gst_riff_encoder_avih(GstRiff *riff, gst_riff_avih *head, gulong size) { + gst_riff_chunk *chunk; + + g_return_val_if_fail(riff->state == GST_RIFF_STATE_INITIAL, GST_RIFF_EINVAL); + + GST_DEBUG (0,"gst_riff_encoder: add avih\n"); + + ADD_LIST(riff, 0xB8, GST_RIFF_LIST_hdrl); + + ADD_CHUNK(riff, GST_RIFF_TAG_avih, size); + + chunk = (gst_riff_chunk *)(riff->dataleft + riff->nextlikely); + memcpy(chunk, head, size); + riff->nextlikely += size; + + riff->state = GST_RIFF_STATE_HASAVIH; + return GST_RIFF_OK; +} + +gint gst_riff_encoder_strh(GstRiff *riff, guint32 fcc_type, gst_riff_strh *head, gulong size) { + gst_riff_chunk *chunk; + + g_return_val_if_fail(riff->state == GST_RIFF_STATE_HASAVIH || + riff->state == GST_RIFF_STATE_HASSTRF, GST_RIFF_EINVAL); + + GST_DEBUG (0,"gst_riff_encoder: add strh type %08x (%4.4s)\n", fcc_type, (char *)&fcc_type); + + ADD_LIST(riff, 108, GST_RIFF_LIST_strl); + + ADD_CHUNK(riff, GST_RIFF_TAG_strh, size); + + chunk = (gst_riff_chunk *)(riff->dataleft + riff->nextlikely); + head->type = fcc_type; + memcpy(chunk, head, size); + + riff->nextlikely += size; + + riff->state = GST_RIFF_STATE_HASSTRH; + return GST_RIFF_OK; +} + +gint gst_riff_encoder_strf(GstRiff *riff, void *format, gulong size) { + gst_riff_chunk *chunk; + + g_return_val_if_fail(riff->state == GST_RIFF_STATE_HASSTRH, GST_RIFF_EINVAL); + + GST_DEBUG (0,"gst_riff_encoder: add strf\n"); + + ADD_CHUNK(riff, GST_RIFF_TAG_strf, size); + + chunk = (gst_riff_chunk *)(riff->dataleft + riff->nextlikely); + memcpy(chunk, format, size); + riff->nextlikely += size; + + riff->state = GST_RIFF_STATE_HASSTRF; + return GST_RIFF_OK; +} + +gint gst_riff_encoder_chunk(GstRiff *riff, guint32 chunk_type, void *chunkdata, gulong size) { + gst_riff_chunk *chunk; + + g_return_val_if_fail(riff->state == GST_RIFF_STATE_HASSTRF || + riff->state == GST_RIFF_STATE_MOVI, GST_RIFF_EINVAL); + + if (riff->state != GST_RIFF_STATE_MOVI) { + ADD_LIST(riff, 0x00FFFFFF, GST_RIFF_LIST_movi); + riff->state = GST_RIFF_STATE_MOVI; + } + + GST_DEBUG (0,"gst_riff_encoder: add chunk type %08x (%4.4s)\n", chunk_type, (char *)&chunk_type); + + ADD_CHUNK(riff, chunk_type, size); + + if (chunkdata != NULL) { + chunk = (gst_riff_chunk *)(riff->dataleft + riff->nextlikely); + memcpy(chunk, chunkdata, size); + riff->nextlikely += size + (size&1); + } + + return GST_RIFF_OK; +} + +GstBuffer *gst_riff_encoder_get_buffer(GstRiff *riff) { + GstBuffer *newbuf; + + newbuf = gst_buffer_new(); + GST_BUFFER_DATA(newbuf) = riff->dataleft; + GST_BUFFER_SIZE(newbuf) = riff->nextlikely; + + return newbuf; +} + +GstBuffer *gst_riff_encoder_get_and_reset_buffer(GstRiff *riff) { + GstBuffer *newbuf; + + newbuf = gst_riff_encoder_get_buffer(riff); + + riff->dataleft = g_malloc(GST_RIFF_ENCODER_BUF_SIZE); + riff->dataleft_size = GST_RIFF_ENCODER_BUF_SIZE; + riff->nextlikely = 0; + + return newbuf; +} + diff --git a/gst-libs/gst/riff/riffparse.c b/gst-libs/gst/riff/riffparse.c new file mode 100644 index 00000000..eb4746fc --- /dev/null +++ b/gst-libs/gst/riff/riffparse.c @@ -0,0 +1,221 @@ +/* Gnome-Streamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <string.h> + +//#define DEBUG_ENABLED +#include <riff.h> + +GstRiff* +gst_riff_parser_new (GstRiffCallback function, gpointer data) +{ + GstRiff *riff; + + riff = (GstRiff *)g_malloc(sizeof(GstRiff)); + g_return_val_if_fail(riff != NULL, NULL); + + riff->form = 0; + riff->chunks = NULL; + riff->state = 0; + riff->curoffset = 0; + riff->nextlikely = 0; + riff->new_tag_found = function; + riff->callback_data = data; + riff->incomplete_chunk = NULL; + riff->dataleft = NULL; + + return riff; +} + +gint +gst_riff_parser_next_buffer (GstRiff *riff, GstBuffer *buf, gulong off) +{ + gulong last, size; + GstRiffChunk *chunk; + + g_return_val_if_fail(riff != NULL, GST_RIFF_EINVAL); + g_return_val_if_fail(buf != NULL, GST_RIFF_EINVAL); + g_return_val_if_fail(GST_BUFFER_DATA(buf) != NULL, GST_RIFF_EINVAL); + + size = GST_BUFFER_SIZE(buf); + last = off + size; + + GST_DEBUG (0,"gst_riff_parser: offset new buffer 0x%08lx size 0x%08x\n", off, GST_BUFFER_SIZE(buf)); + + if (riff->dataleft) { + gulong newsize; + + GST_DEBUG (0,"gst_riff_parser: recovering left data\n"); + newsize = riff->dataleft_size + size; + riff->dataleft = g_realloc(riff->dataleft, newsize); + memcpy(riff->dataleft+riff->dataleft_size, GST_BUFFER_DATA(buf), size); + gst_buffer_unref(buf); + + buf = gst_buffer_new(); + GST_BUFFER_DATA(buf) = riff->dataleft; + size = GST_BUFFER_SIZE(buf) = newsize; + off -= riff->dataleft_size; + //last -= riff->dataleft_size; + riff->dataleft = NULL; + } + + if (off == 0) { + guint32 *words = (guint32 *)GST_BUFFER_DATA(buf); + + // don't even try to parse the head if it's not there FIXME + if (last < 12) { + riff->state = GST_RIFF_ENOTRIFF; + return riff->state; + } + + //g_print("testing is 0x%08lx '%s'\n",words[0],gst_riff_id_to_fourcc(words[0])); + /* verify this is a valid RIFF file, first of all */ + if (GUINT32_FROM_LE (words[0]) != GST_RIFF_TAG_RIFF) { + riff->state = GST_RIFF_ENOTRIFF; + return riff->state; + } + riff->form = GUINT32_FROM_LE (words[2]); + //g_print("form is 0x%08lx '%s'\n",words[2],gst_riff_id_to_fourcc(words[2])); + riff->nextlikely = 12; /* skip 'RIFF', length, and form */ + // all OK here + riff->incomplete_chunk = NULL; + } + + // if we have an incomplete chunk from the previous buffer + if (riff->incomplete_chunk) { + guint leftover; + GST_DEBUG (0,"gst_riff_parser: have incomplete chunk %08x filled\n", riff->incomplete_chunk_size); + leftover = riff->incomplete_chunk->size - riff->incomplete_chunk_size; + if (leftover <= size) { + GST_DEBUG (0,"gst_riff_parser: we can fill it from %08x with %08x bytes = %08x\n", + riff->incomplete_chunk_size, leftover, + riff->incomplete_chunk_size+leftover); + memcpy(riff->incomplete_chunk->data+riff->incomplete_chunk_size, GST_BUFFER_DATA(buf), leftover); + + if (riff->new_tag_found) { + riff->new_tag_found(riff->incomplete_chunk, riff->callback_data); + } + g_free(riff->incomplete_chunk->data); + g_free(riff->incomplete_chunk); + riff->incomplete_chunk = NULL; + } + else { + GST_DEBUG (0,"gst_riff_parser: we cannot fill it %08x >= %08lx\n", leftover, size); + memcpy(riff->incomplete_chunk->data+riff->incomplete_chunk_size, GST_BUFFER_DATA(buf), size); + riff->incomplete_chunk_size += size; + return 0; + } + } + + if (riff->nextlikely & 0x01) riff->nextlikely++; + + GST_DEBUG (0,"gst_riff_parser: next 0x%08x last 0x%08lx offset %08lx\n",riff->nextlikely, last, off); + /* loop while the next likely chunk header is in this buffer */ + while ((riff->nextlikely+12) <= last) { + guint32 *words = (guint32 *)((guchar *)GST_BUFFER_DATA(buf) + riff->nextlikely - off ); + + // loop over all of the chunks to check which one is finished + while (riff->chunks) { + chunk = g_list_nth_data(riff->chunks, 0); + + GST_DEBUG (0,"gst_riff_parser: next 0x%08x offset 0x%08lx size 0x%08x\n",riff->nextlikely, + chunk->offset, chunk->size); + if (riff->nextlikely >= chunk->offset+chunk->size) { + GST_DEBUG (0,"gst_riff_parser: found END LIST\n"); + // we have the end of the chunk on the stack, remove it + riff->chunks = g_list_remove(riff->chunks, chunk); + } + else break; + } + + GST_DEBUG (0,"gst_riff_parser: next likely chunk is at offset 0x%08x\n",riff->nextlikely); + + chunk = (GstRiffChunk *)g_malloc(sizeof(GstRiffChunk)); + g_return_val_if_fail(chunk != NULL, GST_RIFF_ENOMEM); + + chunk->offset = riff->nextlikely+8; /* point to the actual data */ + chunk->id = GUINT32_FROM_LE (words[0]); + chunk->size = GUINT32_FROM_LE (words[1]); + chunk->data = (gchar *)(words+2); + // we need word alignment + //if (chunk->size & 0x01) chunk->size++; + chunk->form = GUINT32_FROM_LE (words[2]); /* fill in the form, might not be valid */ + + + if (chunk->id == GST_RIFF_TAG_LIST) { + GST_DEBUG (0,"found LIST %s\n", gst_riff_id_to_fourcc(chunk->form)); + riff->nextlikely += 12; + // we push the list chunk on our 'stack' + riff->chunks = g_list_prepend(riff->chunks,chunk); + // send the buffer to the listener if we have received a function + if (riff->new_tag_found) { + riff->new_tag_found(chunk, riff->callback_data); + } + } + else { + + GST_DEBUG (0,"gst_riff_parser: chunk id offset %08x is 0x%08x '%s' and is 0x%08x long\n", + riff->nextlikely, GUINT32_FROM_LE (words[0]), + gst_riff_id_to_fourcc(GUINT32_FROM_LE (words[0])), GUINT32_FROM_LE (words[1])); + + riff->nextlikely += 8 + chunk->size; /* doesn't include hdr */ + // if this buffer is incomplete + if (riff->nextlikely > last) { + guint left = size - (riff->nextlikely - chunk->size - off); + + GST_DEBUG (0,"make incomplete buffer %08x\n", left); + chunk->data = g_malloc(chunk->size); + memcpy(chunk->data, (gchar *)(words+2), left); + riff->incomplete_chunk = chunk; + riff->incomplete_chunk_size = left; + } + else { + // send the buffer to the listener if we have received a function + if (riff->new_tag_found) { + riff->new_tag_found(chunk, riff->callback_data); + } + g_free(chunk); + } + if (riff->nextlikely & 0x01) riff->nextlikely++; + + //riff->chunks = g_list_prepend(riff->chunks,chunk); + } + } + if ((riff->nextlikely+12) > last && !riff->incomplete_chunk) { + guint left = last - riff->nextlikely; + GST_DEBUG (0,"gst_riff_parser: not enough data next 0x%08x last 0x%08lx %08x %08lx\n",riff->nextlikely, + last, left, off); + + riff->dataleft = g_malloc(left); + riff->dataleft_size = left; + memcpy(riff->dataleft, GST_BUFFER_DATA(buf)+size-left, left); + + return 0; + } + + return 0; +} + +void +gst_riff_parser_resync (GstRiff *riff, gulong offset) +{ + riff->incomplete_chunk = NULL; + riff->dataleft = NULL; + riff->nextlikely = offset; +} diff --git a/gst-libs/gst/riff/riffutil.c b/gst-libs/gst/riff/riffutil.c new file mode 100644 index 00000000..ca01f6e6 --- /dev/null +++ b/gst-libs/gst/riff/riffutil.c @@ -0,0 +1,46 @@ +/* Gnome-Streamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + + +#include <riff.h> + +//#define debug(format,args...) g_print(format,##args) +#define debug(format,args...) + + +gulong gst_riff_fourcc_to_id(gchar *fourcc) { + g_return_val_if_fail(fourcc != NULL, 0); + + return (fourcc[0] << 0) | (fourcc[1] << 8) | + (fourcc[2] << 16) | (fourcc[3] << 24); +} + +gchar *gst_riff_id_to_fourcc(gulong id) { + gchar *fourcc = (gchar *)g_malloc(5); + + g_return_val_if_fail(fourcc != NULL, NULL); + + fourcc[0] = (id >> 0) & 0xff; + fourcc[1] = (id >> 8) & 0xff; + fourcc[2] = (id >> 16) & 0xff; + fourcc[3] = (id >> 24) & 0xff; + fourcc[4] = 0; + + return fourcc; +} |