diff options
Diffstat (limited to 'source/blender/io/avi/intern/avi.c')
| -rw-r--r-- | source/blender/io/avi/intern/avi.c | 1056 |
1 files changed, 1056 insertions, 0 deletions
diff --git a/source/blender/io/avi/intern/avi.c b/source/blender/io/avi/intern/avi.c new file mode 100644 index 00000000000..22eb0be0cc0 --- /dev/null +++ b/source/blender/io/avi/intern/avi.c @@ -0,0 +1,1056 @@ +/* + * This program 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. + * + * This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. + * All rights reserved. + */ + +/** \file + * \ingroup avi + * + * This is external code. + */ + +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <stdio.h> +#include <ctype.h> + +#ifdef WIN32 +# include "BLI_winstuff.h" +#endif + +#include "MEM_guardedalloc.h" + +#include "BLI_sys_types.h" +#include "BLI_utildefines.h" +#include "BLI_fileops.h" + +#include "AVI_avi.h" +#include "avi_intern.h" + +#include "avi_endian.h" + +static int AVI_DEBUG = 0; +static char DEBUG_FCC[4]; + +#define DEBUG_PRINT(x) \ + if (AVI_DEBUG) { \ + printf("AVI DEBUG: " x); \ + } \ + (void)0 + +/* local functions */ +char *fcc_to_char(unsigned int fcc); +char *tcc_to_char(unsigned int tcc); + +/* implementation */ + +unsigned int GET_FCC(FILE *fp) +{ + unsigned char tmp[4]; + + tmp[0] = getc(fp); + tmp[1] = getc(fp); + tmp[2] = getc(fp); + tmp[3] = getc(fp); + + return FCC(tmp); +} + +unsigned int GET_TCC(FILE *fp) +{ + char tmp[5]; + + tmp[0] = getc(fp); + tmp[1] = getc(fp); + tmp[2] = 0; + tmp[3] = 0; + + return FCC(tmp); +} + +char *fcc_to_char(unsigned int fcc) +{ + DEBUG_FCC[0] = (fcc)&127; + DEBUG_FCC[1] = (fcc >> 8) & 127; + DEBUG_FCC[2] = (fcc >> 16) & 127; + DEBUG_FCC[3] = (fcc >> 24) & 127; + + return DEBUG_FCC; +} + +char *tcc_to_char(unsigned int tcc) +{ + DEBUG_FCC[0] = (tcc)&127; + DEBUG_FCC[1] = (tcc >> 8) & 127; + DEBUG_FCC[2] = 0; + DEBUG_FCC[3] = 0; + + return DEBUG_FCC; +} + +int AVI_get_stream(AviMovie *movie, int avist_type, int stream_num) +{ + int cur_stream; + + if (movie == NULL) { + return -AVI_ERROR_OPTION; + } + + for (cur_stream = 0; cur_stream < movie->header->Streams; cur_stream++) { + if (movie->streams[cur_stream].sh.Type == avist_type) { + if (stream_num == 0) { + return cur_stream; + } + else { + stream_num--; + } + } + } + + return -AVI_ERROR_FOUND; +} + +static int fcc_get_stream(int fcc) +{ + char fccs[4]; + + fccs[0] = fcc; + fccs[1] = fcc >> 8; + fccs[2] = fcc >> 16; + fccs[3] = fcc >> 24; + + return 10 * (fccs[0] - '0') + (fccs[1] - '0'); +} + +static bool fcc_is_data(int fcc) +{ + char fccs[4]; + + fccs[0] = fcc; + fccs[1] = fcc >> 8; + fccs[2] = fcc >> 16; + fccs[3] = fcc >> 24; + + if (!isdigit(fccs[0]) || !isdigit(fccs[1]) || (fccs[2] != 'd' && fccs[2] != 'w')) { + return 0; + } + if (fccs[3] != 'b' && fccs[3] != 'c') { + return 0; + } + + return 1; +} + +AviError AVI_print_error(AviError in_error) +{ + int error; + + if ((int)in_error < 0) { + error = -in_error; + } + else { + error = in_error; + } + + switch (error) { + case AVI_ERROR_NONE: + break; + case AVI_ERROR_COMPRESSION: + printf("AVI ERROR: compressed in an unsupported format\n"); + break; + case AVI_ERROR_OPEN: + printf("AVI ERROR: could not open file\n"); + break; + case AVI_ERROR_READING: + printf("AVI ERROR: could not read from file\n"); + break; + case AVI_ERROR_WRITING: + printf("AVI ERROR: could not write to file\n"); + break; + case AVI_ERROR_FORMAT: + printf("AVI ERROR: file is in an illegal or unrecognized format\n"); + break; + case AVI_ERROR_ALLOC: + printf("AVI ERROR: error encountered while allocating memory\n"); + break; + case AVI_ERROR_OPTION: + printf("AVI ERROR: program made illegal request\n"); + break; + case AVI_ERROR_FOUND: + printf("AVI ERROR: movie did not contain expected item\n"); + break; + default: + break; + } + + return in_error; +} + +bool AVI_is_avi(const char *name) +{ + int temp, fcca, j; + AviMovie movie = {NULL}; + AviMainHeader header; + AviBitmapInfoHeader bheader; + int movie_tracks = 0; + + DEBUG_PRINT("opening movie\n"); + + movie.type = AVI_MOVIE_READ; + movie.fp = BLI_fopen(name, "rb"); + movie.offset_table = NULL; + + if (movie.fp == NULL) { + return 0; + } + + if (GET_FCC(movie.fp) != FCC("RIFF") || !(movie.size = GET_FCC(movie.fp))) { + fclose(movie.fp); + return 0; + } + + movie.header = &header; + + if (GET_FCC(movie.fp) != FCC("AVI ") || GET_FCC(movie.fp) != FCC("LIST") || !GET_FCC(movie.fp) || + GET_FCC(movie.fp) != FCC("hdrl") || (movie.header->fcc = GET_FCC(movie.fp)) != FCC("avih") || + !(movie.header->size = GET_FCC(movie.fp))) { + DEBUG_PRINT("bad initial header info\n"); + fclose(movie.fp); + return 0; + } + + movie.header->MicroSecPerFrame = GET_FCC(movie.fp); + movie.header->MaxBytesPerSec = GET_FCC(movie.fp); + movie.header->PaddingGranularity = GET_FCC(movie.fp); + movie.header->Flags = GET_FCC(movie.fp); + movie.header->TotalFrames = GET_FCC(movie.fp); + movie.header->InitialFrames = GET_FCC(movie.fp); + movie.header->Streams = GET_FCC(movie.fp); + movie.header->SuggestedBufferSize = GET_FCC(movie.fp); + movie.header->Width = GET_FCC(movie.fp); + movie.header->Height = GET_FCC(movie.fp); + movie.header->Reserved[0] = GET_FCC(movie.fp); + movie.header->Reserved[1] = GET_FCC(movie.fp); + movie.header->Reserved[2] = GET_FCC(movie.fp); + movie.header->Reserved[3] = GET_FCC(movie.fp); + + fseek(movie.fp, movie.header->size - 14 * 4, SEEK_CUR); + + /* Limit number of streams to some reasonable amount to prevent + * buffer overflow vulnerabilities. */ + if (movie.header->Streams < 1 || movie.header->Streams > 65536) { + DEBUG_PRINT("Number of streams should be in range 1-65536\n"); + fclose(movie.fp); + return 0; + } + + movie.streams = (AviStreamRec *)MEM_calloc_arrayN( + movie.header->Streams, sizeof(AviStreamRec), "moviestreams"); + + for (temp = 0; temp < movie.header->Streams; temp++) { + + if (GET_FCC(movie.fp) != FCC("LIST") || !GET_FCC(movie.fp) || + GET_FCC(movie.fp) != FCC("strl") || + (movie.streams[temp].sh.fcc = GET_FCC(movie.fp)) != FCC("strh") || + !(movie.streams[temp].sh.size = GET_FCC(movie.fp))) { + DEBUG_PRINT("bad stream header information\n"); + + MEM_freeN(movie.streams); + fclose(movie.fp); + return 0; + } + + movie.streams[temp].sh.Type = GET_FCC(movie.fp); + movie.streams[temp].sh.Handler = GET_FCC(movie.fp); + + fcca = movie.streams[temp].sh.Handler; + + if (movie.streams[temp].sh.Type == FCC("vids")) { + if (fcca == FCC("DIB ") || fcca == FCC("RGB ") || fcca == FCC("rgb ") || + fcca == FCC("RAW ") || fcca == 0) { + movie.streams[temp].format = AVI_FORMAT_AVI_RGB; + } + else if (fcca == FCC("mjpg") || fcca == FCC("MJPG")) { + movie.streams[temp].format = AVI_FORMAT_MJPEG; + } + else { + MEM_freeN(movie.streams); + fclose(movie.fp); + return 0; + } + movie_tracks++; + } + + movie.streams[temp].sh.Flags = GET_FCC(movie.fp); + movie.streams[temp].sh.Priority = GET_TCC(movie.fp); + movie.streams[temp].sh.Language = GET_TCC(movie.fp); + movie.streams[temp].sh.InitialFrames = GET_FCC(movie.fp); + movie.streams[temp].sh.Scale = GET_FCC(movie.fp); + movie.streams[temp].sh.Rate = GET_FCC(movie.fp); + movie.streams[temp].sh.Start = GET_FCC(movie.fp); + movie.streams[temp].sh.Length = GET_FCC(movie.fp); + movie.streams[temp].sh.SuggestedBufferSize = GET_FCC(movie.fp); + movie.streams[temp].sh.Quality = GET_FCC(movie.fp); + movie.streams[temp].sh.SampleSize = GET_FCC(movie.fp); + movie.streams[temp].sh.left = GET_TCC(movie.fp); + movie.streams[temp].sh.top = GET_TCC(movie.fp); + movie.streams[temp].sh.right = GET_TCC(movie.fp); + movie.streams[temp].sh.bottom = GET_TCC(movie.fp); + + fseek(movie.fp, movie.streams[temp].sh.size - 14 * 4, SEEK_CUR); + + if (GET_FCC(movie.fp) != FCC("strf")) { + DEBUG_PRINT("no stream format information\n"); + MEM_freeN(movie.streams); + fclose(movie.fp); + return 0; + } + + movie.streams[temp].sf_size = GET_FCC(movie.fp); + if (movie.streams[temp].sh.Type == FCC("vids")) { + j = movie.streams[temp].sf_size - (sizeof(AviBitmapInfoHeader) - 8); + if (j >= 0) { + AviBitmapInfoHeader *bi; + + movie.streams[temp].sf = &bheader; + bi = (AviBitmapInfoHeader *)movie.streams[temp].sf; + + bi->fcc = FCC("strf"); + bi->size = movie.streams[temp].sf_size; + bi->Size = GET_FCC(movie.fp); + bi->Width = GET_FCC(movie.fp); + bi->Height = GET_FCC(movie.fp); + bi->Planes = GET_TCC(movie.fp); + bi->BitCount = GET_TCC(movie.fp); + bi->Compression = GET_FCC(movie.fp); + bi->SizeImage = GET_FCC(movie.fp); + bi->XPelsPerMeter = GET_FCC(movie.fp); + bi->YPelsPerMeter = GET_FCC(movie.fp); + bi->ClrUsed = GET_FCC(movie.fp); + bi->ClrImportant = GET_FCC(movie.fp); + + fcca = bi->Compression; + + if (movie.streams[temp].format == AVI_FORMAT_AVI_RGB) { + if (fcca == FCC("DIB ") || fcca == FCC("RGB ") || fcca == FCC("rgb ") || + fcca == FCC("RAW ") || fcca == 0) { + /* pass */ + } + else if (fcca == FCC("mjpg") || fcca == FCC("MJPG")) { + movie.streams[temp].format = AVI_FORMAT_MJPEG; + } + else { + MEM_freeN(movie.streams); + fclose(movie.fp); + return 0; + } + } + } + if (j > 0) { + fseek(movie.fp, j, SEEK_CUR); + } + } + else { + fseek(movie.fp, movie.streams[temp].sf_size, SEEK_CUR); + } + + /* Walk to the next LIST */ + while (GET_FCC(movie.fp) != FCC("LIST")) { + temp = GET_FCC(movie.fp); + if (temp < 0 || ftell(movie.fp) > movie.size) { + DEBUG_PRINT("incorrect size in header or error in AVI\n"); + + MEM_freeN(movie.streams); + fclose(movie.fp); + return 0; + } + fseek(movie.fp, temp, SEEK_CUR); + } + + fseek(movie.fp, -4L, SEEK_CUR); + } + + MEM_freeN(movie.streams); + fclose(movie.fp); + + /* at least one video track is needed */ + return (movie_tracks != 0); +} + +AviError AVI_open_movie(const char *name, AviMovie *movie) +{ + int temp, fcca, size, j; + + DEBUG_PRINT("opening movie\n"); + + memset(movie, 0, sizeof(AviMovie)); + + movie->type = AVI_MOVIE_READ; + movie->fp = BLI_fopen(name, "rb"); + movie->offset_table = NULL; + + if (movie->fp == NULL) { + return AVI_ERROR_OPEN; + } + + if (GET_FCC(movie->fp) != FCC("RIFF") || !(movie->size = GET_FCC(movie->fp))) { + return AVI_ERROR_FORMAT; + } + + movie->header = (AviMainHeader *)MEM_mallocN(sizeof(AviMainHeader), "movieheader"); + + if (GET_FCC(movie->fp) != FCC("AVI ") || GET_FCC(movie->fp) != FCC("LIST") || + !GET_FCC(movie->fp) || GET_FCC(movie->fp) != FCC("hdrl") || + (movie->header->fcc = GET_FCC(movie->fp)) != FCC("avih") || + !(movie->header->size = GET_FCC(movie->fp))) { + DEBUG_PRINT("bad initial header info\n"); + return AVI_ERROR_FORMAT; + } + + movie->header->MicroSecPerFrame = GET_FCC(movie->fp); + movie->header->MaxBytesPerSec = GET_FCC(movie->fp); + movie->header->PaddingGranularity = GET_FCC(movie->fp); + movie->header->Flags = GET_FCC(movie->fp); + movie->header->TotalFrames = GET_FCC(movie->fp); + movie->header->InitialFrames = GET_FCC(movie->fp); + movie->header->Streams = GET_FCC(movie->fp); + movie->header->SuggestedBufferSize = GET_FCC(movie->fp); + movie->header->Width = GET_FCC(movie->fp); + movie->header->Height = GET_FCC(movie->fp); + movie->header->Reserved[0] = GET_FCC(movie->fp); + movie->header->Reserved[1] = GET_FCC(movie->fp); + movie->header->Reserved[2] = GET_FCC(movie->fp); + movie->header->Reserved[3] = GET_FCC(movie->fp); + + fseek(movie->fp, movie->header->size - 14 * 4, SEEK_CUR); + + /* Limit number of streams to some reasonable amount to prevent + * buffer overflow vulnerabilities. */ + if (movie->header->Streams < 1 || movie->header->Streams > 65536) { + DEBUG_PRINT("Number of streams should be in range 1-65536\n"); + return AVI_ERROR_FORMAT; + } + + movie->streams = (AviStreamRec *)MEM_calloc_arrayN( + movie->header->Streams, sizeof(AviStreamRec), "moviestreams"); + + for (temp = 0; temp < movie->header->Streams; temp++) { + + if (GET_FCC(movie->fp) != FCC("LIST") || !GET_FCC(movie->fp) || + GET_FCC(movie->fp) != FCC("strl") || + (movie->streams[temp].sh.fcc = GET_FCC(movie->fp)) != FCC("strh") || + !(movie->streams[temp].sh.size = GET_FCC(movie->fp))) { + DEBUG_PRINT("bad stream header information\n"); + return AVI_ERROR_FORMAT; + } + + movie->streams[temp].sh.Type = GET_FCC(movie->fp); + movie->streams[temp].sh.Handler = GET_FCC(movie->fp); + + fcca = movie->streams[temp].sh.Handler; + + if (movie->streams[temp].sh.Type == FCC("vids")) { + if (fcca == FCC("DIB ") || fcca == FCC("RGB ") || fcca == FCC("rgb ") || + fcca == FCC("RAW ") || fcca == 0) { + movie->streams[temp].format = AVI_FORMAT_AVI_RGB; + } + else if (fcca == FCC("mjpg") || fcca == FCC("MJPG")) { + movie->streams[temp].format = AVI_FORMAT_MJPEG; + } + else { + return AVI_ERROR_COMPRESSION; + } + } + + movie->streams[temp].sh.Flags = GET_FCC(movie->fp); + movie->streams[temp].sh.Priority = GET_TCC(movie->fp); + movie->streams[temp].sh.Language = GET_TCC(movie->fp); + movie->streams[temp].sh.InitialFrames = GET_FCC(movie->fp); + movie->streams[temp].sh.Scale = GET_FCC(movie->fp); + movie->streams[temp].sh.Rate = GET_FCC(movie->fp); + movie->streams[temp].sh.Start = GET_FCC(movie->fp); + movie->streams[temp].sh.Length = GET_FCC(movie->fp); + movie->streams[temp].sh.SuggestedBufferSize = GET_FCC(movie->fp); + movie->streams[temp].sh.Quality = GET_FCC(movie->fp); + movie->streams[temp].sh.SampleSize = GET_FCC(movie->fp); + movie->streams[temp].sh.left = GET_TCC(movie->fp); + movie->streams[temp].sh.top = GET_TCC(movie->fp); + movie->streams[temp].sh.right = GET_TCC(movie->fp); + movie->streams[temp].sh.bottom = GET_TCC(movie->fp); + + fseek(movie->fp, movie->streams[temp].sh.size - 14 * 4, SEEK_CUR); + + if (GET_FCC(movie->fp) != FCC("strf")) { + DEBUG_PRINT("no stream format information\n"); + return AVI_ERROR_FORMAT; + } + + movie->streams[temp].sf_size = GET_FCC(movie->fp); + if (movie->streams[temp].sh.Type == FCC("vids")) { + j = movie->streams[temp].sf_size - (sizeof(AviBitmapInfoHeader) - 8); + if (j >= 0) { + AviBitmapInfoHeader *bi; + + movie->streams[temp].sf = MEM_mallocN(sizeof(AviBitmapInfoHeader), "streamformat"); + + bi = (AviBitmapInfoHeader *)movie->streams[temp].sf; + + bi->fcc = FCC("strf"); + bi->size = movie->streams[temp].sf_size; + bi->Size = GET_FCC(movie->fp); + bi->Width = GET_FCC(movie->fp); + bi->Height = GET_FCC(movie->fp); + bi->Planes = GET_TCC(movie->fp); + bi->BitCount = GET_TCC(movie->fp); + bi->Compression = GET_FCC(movie->fp); + bi->SizeImage = GET_FCC(movie->fp); + bi->XPelsPerMeter = GET_FCC(movie->fp); + bi->YPelsPerMeter = GET_FCC(movie->fp); + bi->ClrUsed = GET_FCC(movie->fp); + bi->ClrImportant = GET_FCC(movie->fp); + + fcca = bi->Compression; + + if (movie->streams[temp].format == AVI_FORMAT_AVI_RGB) { + if (fcca == FCC("DIB ") || fcca == FCC("RGB ") || fcca == FCC("rgb ") || + fcca == FCC("RAW ") || fcca == 0) { + /* pass */ + } + else if (fcca == FCC("mjpg") || fcca == FCC("MJPG")) { + movie->streams[temp].format = AVI_FORMAT_MJPEG; + } + else { + return AVI_ERROR_COMPRESSION; + } + } + } + if (j > 0) { + fseek(movie->fp, j, SEEK_CUR); + } + } + else { + fseek(movie->fp, movie->streams[temp].sf_size, SEEK_CUR); + } + + /* Walk to the next LIST */ + while (GET_FCC(movie->fp) != FCC("LIST")) { + temp = GET_FCC(movie->fp); + if (temp < 0 || ftell(movie->fp) > movie->size) { + DEBUG_PRINT("incorrect size in header or error in AVI\n"); + return AVI_ERROR_FORMAT; + } + fseek(movie->fp, temp, SEEK_CUR); + } + + fseek(movie->fp, -4L, SEEK_CUR); + } + + while (1) { + temp = GET_FCC(movie->fp); + size = GET_FCC(movie->fp); + + if (size == 0) { + break; + } + + if (temp == FCC("LIST")) { + if (GET_FCC(movie->fp) == FCC("movi")) { + break; + } + else { + fseek(movie->fp, size - 4, SEEK_CUR); + } + } + else { + fseek(movie->fp, size, SEEK_CUR); + } + if (ftell(movie->fp) > movie->size) { + DEBUG_PRINT("incorrect size in header or error in AVI\n"); + return AVI_ERROR_FORMAT; + } + } + + movie->movi_offset = ftell(movie->fp); + movie->read_offset = movie->movi_offset; + + /* Read in the index if the file has one, otherwise create one */ + if (movie->header->Flags & AVIF_HASINDEX) { + fseek(movie->fp, size - 4, SEEK_CUR); + + if (GET_FCC(movie->fp) != FCC("idx1")) { + DEBUG_PRINT("bad index informatio\n"); + return AVI_ERROR_FORMAT; + } + + movie->index_entries = GET_FCC(movie->fp) / sizeof(AviIndexEntry); + if (movie->index_entries == 0) { + DEBUG_PRINT("no index entries\n"); + return AVI_ERROR_FORMAT; + } + + movie->entries = (AviIndexEntry *)MEM_mallocN(movie->index_entries * sizeof(AviIndexEntry), + "movieentries"); + + for (temp = 0; temp < movie->index_entries; temp++) { + movie->entries[temp].ChunkId = GET_FCC(movie->fp); + movie->entries[temp].Flags = GET_FCC(movie->fp); + movie->entries[temp].Offset = GET_FCC(movie->fp); + movie->entries[temp].Size = GET_FCC(movie->fp); + + if (AVI_DEBUG) { + printf("Index entry %04d: ChunkId:%s Flags:%d Offset:%d Size:%d\n", + temp, + fcc_to_char(movie->entries[temp].ChunkId), + movie->entries[temp].Flags, + movie->entries[temp].Offset, + movie->entries[temp].Size); + } + } + + /* Some AVI's have offset entries in absolute coordinates + * instead of an offset from the movie beginning... this is... + * wacky, but we need to handle it. The wacky offset always + * starts at movi_offset it seems... so we'll check that. + * Note the offset needs an extra 4 bytes for some + * undetermined reason */ + + if (movie->entries[0].Offset == movie->movi_offset) { + movie->read_offset = 4; + } + } + + DEBUG_PRINT("movie successfully opened\n"); + return AVI_ERROR_NONE; +} + +void *AVI_read_frame(AviMovie *movie, AviFormat format, int frame, int stream) +{ + int cur_frame = -1, i = 0, rewind = 1; + void *buffer; + + /* Retrieve the record number of the desired frame in the index + * If a chunk has Size 0 we need to rewind to previous frame */ + while (rewind && frame > -1) { + i = 0; + cur_frame = -1; + rewind = 0; + + while (cur_frame < frame && i < movie->index_entries) { + if (fcc_is_data(movie->entries[i].ChunkId) && + fcc_get_stream(movie->entries[i].ChunkId) == stream) { + if ((cur_frame == frame - 1) && (movie->entries[i].Size == 0)) { + rewind = 1; + frame = frame - 1; + } + else { + cur_frame++; + } + } + i++; + } + } + + if (cur_frame != frame) { + return NULL; + } + + fseek(movie->fp, movie->read_offset + movie->entries[i - 1].Offset, SEEK_SET); + + size_t size = GET_FCC(movie->fp); + buffer = MEM_mallocN(size, "readbuffer"); + + if (fread(buffer, 1, size, movie->fp) != size) { + MEM_freeN(buffer); + + return NULL; + } + + buffer = avi_format_convert(movie, stream, buffer, movie->streams[stream].format, format, &size); + + return buffer; +} + +AviError AVI_close(AviMovie *movie) +{ + int i; + + fclose(movie->fp); + + for (i = 0; i < movie->header->Streams; i++) { + if (movie->streams[i].sf != NULL) { + MEM_freeN(movie->streams[i].sf); + } + } + + MEM_freeN(movie->header); + MEM_freeN(movie->streams); + + if (movie->entries != NULL) { + MEM_freeN(movie->entries); + } + if (movie->offset_table != NULL) { + MEM_freeN(movie->offset_table); + } + + return AVI_ERROR_NONE; +} + +AviError AVI_open_compress(char *name, AviMovie *movie, int streams, ...) +{ + va_list ap; + AviList list; + AviChunk chunk; + int i; + int64_t header_pos1, header_pos2; + int64_t stream_pos1, stream_pos2; + int64_t junk_pos; + + movie->type = AVI_MOVIE_WRITE; + movie->fp = BLI_fopen(name, "wb"); + + movie->index_entries = 0; + + if (movie->fp == NULL) { + return AVI_ERROR_OPEN; + } + + movie->offset_table = (int64_t *)MEM_mallocN((1 + streams * 2) * sizeof(int64_t), "offsettable"); + + for (i = 0; i < 1 + streams * 2; i++) { + movie->offset_table[i] = -1L; + } + + movie->entries = NULL; + + movie->header = (AviMainHeader *)MEM_mallocN(sizeof(AviMainHeader), "movieheader"); + + movie->header->fcc = FCC("avih"); + movie->header->size = 56; + movie->header->MicroSecPerFrame = 66667; + movie->header->MaxBytesPerSec = 0; + movie->header->PaddingGranularity = 0; + movie->header->Flags = AVIF_HASINDEX | AVIF_MUSTUSEINDEX; + movie->header->TotalFrames = 0; + movie->header->InitialFrames = 0; + movie->header->Streams = streams; + movie->header->SuggestedBufferSize = 0; + movie->header->Width = 0; + movie->header->Height = 0; + movie->header->Reserved[0] = 0; + movie->header->Reserved[1] = 0; + movie->header->Reserved[2] = 0; + movie->header->Reserved[3] = 0; + + /* Limit number of streams to some reasonable amount to prevent + * buffer overflow vulnerabilities. */ + if (movie->header->Streams < 0 || movie->header->Streams > 65536) { + DEBUG_PRINT("Number of streams should be in range 0-65536\n"); + return AVI_ERROR_FORMAT; + } + + movie->streams = (AviStreamRec *)MEM_mallocN(sizeof(AviStreamRec) * movie->header->Streams, + "moviestreams"); + + va_start(ap, streams); + + for (i = 0; i < movie->header->Streams; i++) { + movie->streams[i].format = va_arg(ap, AviFormat); + + movie->streams[i].sh.fcc = FCC("strh"); + movie->streams[i].sh.size = 56; + movie->streams[i].sh.Type = avi_get_format_type(movie->streams[i].format); + if (movie->streams[i].sh.Type == 0) { + va_end(ap); + return AVI_ERROR_FORMAT; + } + + movie->streams[i].sh.Handler = avi_get_format_fcc(movie->streams[i].format); + if (movie->streams[i].sh.Handler == 0) { + va_end(ap); + return AVI_ERROR_FORMAT; + } + + movie->streams[i].sh.Flags = 0; + movie->streams[i].sh.Priority = 0; + movie->streams[i].sh.Language = 0; + movie->streams[i].sh.InitialFrames = 0; + movie->streams[i].sh.Scale = 66667; + movie->streams[i].sh.Rate = 1000000; + movie->streams[i].sh.Start = 0; + movie->streams[i].sh.Length = 0; + movie->streams[i].sh.SuggestedBufferSize = 0; + movie->streams[i].sh.Quality = 10000; + movie->streams[i].sh.SampleSize = 0; + movie->streams[i].sh.left = 0; + movie->streams[i].sh.top = 0; + movie->streams[i].sh.right = 0; + movie->streams[i].sh.bottom = 0; + + if (movie->streams[i].sh.Type == FCC("vids")) { + movie->streams[i].sf = MEM_mallocN(sizeof(AviBitmapInfoHeader), "moviestreamformatS"); + movie->streams[i].sf_size = sizeof(AviBitmapInfoHeader); + + ((AviBitmapInfoHeader *)movie->streams[i].sf)->fcc = FCC("strf"); + ((AviBitmapInfoHeader *)movie->streams[i].sf)->size = movie->streams[i].sf_size - 8; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->Size = movie->streams[i].sf_size - 8; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->Width = 0; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->Height = 0; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->Planes = 1; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->BitCount = 24; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->Compression = avi_get_format_compression( + movie->streams[i].format); + ((AviBitmapInfoHeader *)movie->streams[i].sf)->SizeImage = 0; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->XPelsPerMeter = 0; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->YPelsPerMeter = 0; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->ClrUsed = 0; + ((AviBitmapInfoHeader *)movie->streams[i].sf)->ClrImportant = 0; + } + } + + list.fcc = FCC("RIFF"); + list.size = 0; + list.ids = FCC("AVI "); + + awrite(movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST); + + list.fcc = FCC("LIST"); + list.size = 0; + list.ids = FCC("hdrl"); + + awrite(movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST); + + header_pos1 = ftell(movie->fp); + + movie->offset_table[0] = ftell(movie->fp); + + awrite(movie, movie->header, 1, sizeof(AviMainHeader), movie->fp, AVI_MAINH); + + for (i = 0; i < movie->header->Streams; i++) { + list.fcc = FCC("LIST"); + list.size = 0; + list.ids = FCC("strl"); + + awrite(movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST); + + stream_pos1 = ftell(movie->fp); + + movie->offset_table[1 + i * 2] = ftell(movie->fp); + awrite(movie, &movie->streams[i].sh, 1, sizeof(AviStreamHeader), movie->fp, AVI_STREAMH); + + movie->offset_table[1 + i * 2 + 1] = ftell(movie->fp); + awrite(movie, movie->streams[i].sf, 1, movie->streams[i].sf_size, movie->fp, AVI_BITMAPH); + + stream_pos2 = ftell(movie->fp); + + fseek(movie->fp, stream_pos1 - 8, SEEK_SET); + + PUT_FCCN((stream_pos2 - stream_pos1 + 4L), movie->fp); + + fseek(movie->fp, stream_pos2, SEEK_SET); + } + + junk_pos = ftell(movie->fp); + + if (junk_pos < 2024 - 8) { + chunk.fcc = FCC("JUNK"); + chunk.size = 2024 - 8 - (int)junk_pos; + + awrite(movie, &chunk, 1, sizeof(AviChunk), movie->fp, AVI_CHUNK); + + for (i = 0; i < chunk.size; i++) { + putc(0, movie->fp); + } + } + + header_pos2 = ftell(movie->fp); + + list.fcc = FCC("LIST"); + list.size = 0; + list.ids = FCC("movi"); + + awrite(movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST); + + movie->movi_offset = ftell(movie->fp) - 8L; + + fseek(movie->fp, AVI_HDRL_SOFF, SEEK_SET); + + PUT_FCCN((header_pos2 - header_pos1 + 4L), movie->fp); + + va_end(ap); + + return AVI_ERROR_NONE; +} + +AviError AVI_write_frame(AviMovie *movie, int frame_num, ...) +{ + AviList list; + AviChunk chunk; + va_list ap; + int stream; + int64_t rec_off; + AviFormat format; + void *buffer; + + if (frame_num < 0) { + return AVI_ERROR_OPTION; + } + + /* Allocate the new memory for the index entry */ + + if (frame_num >= movie->index_entries) { + const size_t entry_size = (movie->header->Streams + 1) * sizeof(AviIndexEntry); + movie->entries = (AviIndexEntry *)MEM_recallocN(movie->entries, (frame_num + 1) * entry_size); + movie->index_entries = frame_num + 1; + } + + /* Slap a new record entry onto the end of the file */ + + fseek(movie->fp, 0L, SEEK_END); + + list.fcc = FCC("LIST"); + list.size = 0; + list.ids = FCC("rec "); + + awrite(movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST); + + rec_off = ftell(movie->fp) - 8L; + + /* Write a frame for every stream */ + + va_start(ap, frame_num); + + for (stream = 0; stream < movie->header->Streams; stream++) { + unsigned int tbuf = 0; + + format = va_arg(ap, AviFormat); + buffer = va_arg(ap, void *); + size_t size = va_arg(ap, int); + + /* Convert the buffer into the output format */ + buffer = avi_format_convert( + movie, stream, buffer, format, movie->streams[stream].format, &size); + + /* Write the header info for this data chunk */ + + fseek(movie->fp, 0L, SEEK_END); + + chunk.fcc = avi_get_data_id(format, stream); + chunk.size = size; + + if (size % 4) { + chunk.size += 4 - size % 4; + } + + awrite(movie, &chunk, 1, sizeof(AviChunk), movie->fp, AVI_CHUNK); + + /* Write the index entry for this data chunk */ + + movie->entries[frame_num * (movie->header->Streams + 1) + stream + 1].ChunkId = chunk.fcc; + movie->entries[frame_num * (movie->header->Streams + 1) + stream + 1].Flags = AVIIF_KEYFRAME; + movie->entries[frame_num * (movie->header->Streams + 1) + stream + 1].Offset = + (int)(ftell(movie->fp) - 12L - movie->movi_offset); + movie->entries[frame_num * (movie->header->Streams + 1) + stream + 1].Size = chunk.size; + + /* Write the chunk */ + awrite(movie, buffer, 1, size, movie->fp, AVI_RAW); + MEM_freeN(buffer); + + if (size % 4) { + awrite(movie, &tbuf, 1, 4 - size % 4, movie->fp, AVI_RAW); + } + + /* Update the stream headers length field */ + movie->streams[stream].sh.Length++; + fseek(movie->fp, movie->offset_table[1 + stream * 2], SEEK_SET); + awrite(movie, &movie->streams[stream].sh, 1, sizeof(AviStreamHeader), movie->fp, AVI_STREAMH); + } + va_end(ap); + + /* Record the entry for the new record */ + + fseek(movie->fp, 0L, SEEK_END); + + movie->entries[frame_num * (movie->header->Streams + 1)].ChunkId = FCC("rec "); + movie->entries[frame_num * (movie->header->Streams + 1)].Flags = AVIIF_LIST; + movie->entries[frame_num * (movie->header->Streams + 1)].Offset = (int)(rec_off - 8L - + movie->movi_offset); + movie->entries[frame_num * (movie->header->Streams + 1)].Size = (int)(ftell(movie->fp) - + (rec_off + 4L)); + + /* Update the record size */ + fseek(movie->fp, rec_off, SEEK_SET); + PUT_FCCN(movie->entries[frame_num * (movie->header->Streams + 1)].Size, movie->fp); + + /* Update the main header information in the file */ + movie->header->TotalFrames++; + fseek(movie->fp, movie->offset_table[0], SEEK_SET); + awrite(movie, movie->header, 1, sizeof(AviMainHeader), movie->fp, AVI_MAINH); + + return AVI_ERROR_NONE; +} + +AviError AVI_close_compress(AviMovie *movie) +{ + int temp, movi_size, i; + + if (movie->fp == NULL) { + /* none of the allocations below were done if the file failed to open */ + return AVI_ERROR_FOUND; + } + + fseek(movie->fp, 0L, SEEK_END); + movi_size = (int)ftell(movie->fp); + + PUT_FCC("idx1", movie->fp); + PUT_FCCN((movie->index_entries * (movie->header->Streams + 1) * 16), movie->fp); + + for (temp = 0; temp < movie->index_entries * (movie->header->Streams + 1); temp++) { + awrite(movie, &movie->entries[temp], 1, sizeof(AviIndexEntry), movie->fp, AVI_INDEXE); + } + + temp = (int)ftell(movie->fp); + + fseek(movie->fp, AVI_RIFF_SOFF, SEEK_SET); + + PUT_FCCN((temp - 8L), movie->fp); + + fseek(movie->fp, movie->movi_offset, SEEK_SET); + + PUT_FCCN((movi_size - (movie->movi_offset + 4L)), movie->fp); + + fclose(movie->fp); + + for (i = 0; i < movie->header->Streams; i++) { + if (movie->streams && (movie->streams[i].sf != NULL)) { + MEM_freeN(movie->streams[i].sf); + } + } + + MEM_freeN(movie->header); + + if (movie->entries != NULL) { + MEM_freeN(movie->entries); + } + if (movie->streams != NULL) { + MEM_freeN(movie->streams); + } + if (movie->offset_table != NULL) { + MEM_freeN(movie->offset_table); + } + return AVI_ERROR_NONE; +} |