*/
#include "avformat.h"
-#include "bethsoftvideo.h"
+#include "libavcodec/bethsoftvideo.h"
typedef struct BVID_DemuxContext
{
static int vid_probe(AVProbeData *p)
{
// little endian VID tag, file starts with "VID\0"
- if (p->buf_size < 4 || AV_RL32(p->buf) != MKTAG('V', 'I', 'D', 0))
+ if (AV_RL32(p->buf) != MKTAG('V', 'I', 'D', 0))
return 0;
return AVPROBE_SCORE_MAX;
AVFormatParameters *ap)
{
BVID_DemuxContext *vid = s->priv_data;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
AVStream *stream;
/* load main header. Contents:
stream = av_new_stream(s, 0);
if (!stream)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
av_set_pts_info(stream, 32, 1, 60); // 16 ms increments, i.e. 60 fps
stream->codec->codec_type = CODEC_TYPE_VIDEO;
stream->codec->codec_id = CODEC_ID_BETHSOFTVID;
// done with video codec, set up audio codec
stream = av_new_stream(s, 0);
if (!stream)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
stream->codec->codec_type = CODEC_TYPE_AUDIO;
stream->codec->codec_id = CODEC_ID_PCM_U8;
stream->codec->channels = 1;
{
uint8_t * vidbuf_start = NULL;
int vidbuf_nbytes = 0;
- int rle_num_bytes;
+ int code;
int bytes_copied = 0;
int position;
- size_t vidbuf_capacity;
+ unsigned int vidbuf_capacity;
vidbuf_start = av_malloc(vidbuf_capacity = BUFFER_PADDING_SIZE);
if(!vidbuf_start)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
// save the file position for the packet, include block type
position = url_ftell(pb) - 1;
vid->video_pts += vid->bethsoft_global_delay + get_le16(pb);
// set the y offset if it exists (decoder header data should be in data section)
- if(block_type == VIDEO_YOFFSET_DIFFERENCE_FRAME_BLOCK){
+ if(block_type == VIDEO_YOFF_P_FRAME){
if(get_buffer(pb, &vidbuf_start[vidbuf_nbytes], 2) != 2)
goto fail;
vidbuf_nbytes += 2;
do{
vidbuf_start = av_fast_realloc(vidbuf_start, &vidbuf_capacity, vidbuf_nbytes + BUFFER_PADDING_SIZE);
if(!vidbuf_start)
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
- rle_num_bytes = get_byte(pb);
- vidbuf_start[vidbuf_nbytes++] = rle_num_bytes;
+ code = get_byte(pb);
+ vidbuf_start[vidbuf_nbytes++] = code;
- if(rle_num_bytes > 0x80){ // rle sequence
- if(block_type == VIDEO_FULL_FRAME_BLOCK)
+ if(code >= 0x80){ // rle sequence
+ if(block_type == VIDEO_I_FRAME)
vidbuf_start[vidbuf_nbytes++] = get_byte(pb);
- bytes_copied += rle_num_bytes - 0x80;
- } else if(rle_num_bytes){ // plain sequence
- if(get_buffer(pb, &vidbuf_start[vidbuf_nbytes], rle_num_bytes) != rle_num_bytes)
+ } else if(code){ // plain sequence
+ if(get_buffer(pb, &vidbuf_start[vidbuf_nbytes], code) != code)
goto fail;
- vidbuf_nbytes += rle_num_bytes;
- bytes_copied += rle_num_bytes;
+ vidbuf_nbytes += code;
}
+ bytes_copied += code & 0x7F;
if(bytes_copied == npixels){ // sometimes no stop character is given, need to keep track of bytes copied
// may contain a 0 byte even if read all pixels
if(get_byte(pb))
}
if(bytes_copied > npixels)
goto fail;
- } while(rle_num_bytes);
+ } while(code);
// copy data into packet
if(av_new_packet(pkt, vidbuf_nbytes) < 0)
AVPacket *pkt)
{
BVID_DemuxContext *vid = s->priv_data;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
unsigned char block_type;
int audio_length;
int ret_value;
if(vid->is_finished || url_feof(pb))
- return AVERROR_IO;
+ return AVERROR(EIO);
block_type = get_byte(pb);
switch(block_type){
case PALETTE_BLOCK:
url_fseek(pb, -1, SEEK_CUR); // include block type
- ret_value = av_get_packet(pb, pkt, 3 * VID_PALETTE_NUMCOLORS + 1);
- if(ret_value != 3 * VID_PALETTE_NUMCOLORS + 1){
+ ret_value = av_get_packet(pb, pkt, 3 * 256 + 1);
+ if(ret_value != 3 * 256 + 1){
av_free_packet(pkt);
- return AVERROR_IO;
+ return AVERROR(EIO);
}
pkt->stream_index = 0;
return ret_value;
audio_length = get_le16(pb);
ret_value = av_get_packet(pb, pkt, audio_length);
pkt->stream_index = 1;
- return (ret_value != audio_length ? AVERROR_IO : ret_value);
+ return ret_value != audio_length ? AVERROR(EIO) : ret_value;
- case VIDEO_DIFFERENCE_FRAME_BLOCK:
- case VIDEO_YOFFSET_DIFFERENCE_FRAME_BLOCK:
- case VIDEO_FULL_FRAME_BLOCK:
+ case VIDEO_P_FRAME:
+ case VIDEO_YOFF_P_FRAME:
+ case VIDEO_I_FRAME:
return read_frame(vid, pb, pkt, block_type, s,
s->streams[0]->codec->width * s->streams[0]->codec->height);
- case FINISHED_BLOCK:
+ case EOF_BLOCK:
if(vid->nframes != 0)
av_log(s, AV_LOG_VERBOSE, "reached terminating character but not all frames read.\n");
vid->is_finished = 1;
- return AVERROR_IO;
+ return AVERROR(EIO);
default:
av_log(s, AV_LOG_ERROR, "unknown block (character = %c, decimal = %d, hex = %x)!!!\n",
block_type, block_type, block_type); return -1;
AVInputFormat bethsoftvid_demuxer = {
"bethsoftvid",
- "Bethesda Softworks 'Daggerfall' VID format",
+ NULL_IF_CONFIG_SMALL("Bethesda Softworks VID format"),
sizeof(BVID_DemuxContext),
vid_probe,
vid_read_header,